阅读说明：本技术 轨条连接器 (Rail connector ) 是由 大卫·尼古拉斯·埃文斯 于 2019-07-22 设计创作，主要内容包括：描述了一种可释放的轨条连接器(1000),用于可释放地连接第一轨条(10A)和第二轨条(10B),第一轨条(10A)提供车轮(120)的行驶表面RS的第一部分P1,第二轨条(10B)提供行驶表面RS的第二部分P2。轨条连接器(1000)包括第一部件(1100),其具有包括第一公连接件(1111)的第一端(1110)和被设置以与第一轨条(10A)接合的第二端(1120)。轨条连接器(1000)包括第二部件(1200),其具有包括对应的第一母连接件(1212)的第一端(1210)和被设置以与第二轨条(10B)接合的第二端(1220),第一母连接件(1212)被设置以将第一公连接件(1111)接纳于其中。轨条连接器(1000)能够布置为第一构造,其中第一公连接件(1111)和第一母连接件(1212)分开。轨条连接器(1000)能够布置为第二构造,其中通过将第一公连接件(1111)接纳于第一母连接件(1212)中,使第一公连接件(1111)和第一母连接件(1212)连接。轨条连接器(1000)在第二构造中提供行驶表面RS的第三部分P3。以此方式,第一轨条(10A)(即,轨条的第一长度)和第二轨条(10B)(即,轨条的第二长度)的组装和/或拆卸会更加容易和/或组装错误会减少。(A releasable rail connector (1000) is described for releasably connecting a first rail (10A) and a second rail (10B), the first rail (10A) providing a first portion P1 of a driving surface RS of a wheel (120) and the second rail (10B) providing a second portion P2 of the driving surface RS. The rail connector (1000) includes a first member (1100) having a first end (1110) including a first male coupling (1111) and a second end (1120) configured to engage a first rail (10A). The rail connector (1000) includes a second member (1200) having a first end (1210) including a corresponding first female coupler (1212) and a second end (1220) configured to engage a second rail (10B), the first female coupler (1212) configured to receive a first male coupler (1111) therein. The rail connector (1000) can be arranged in a first configuration in which the first male connector (1111) and the first female connector (1212) are separated. The rail connector (1000) can be arranged in a second configuration in which the first male connector (1111) and the first female connector (1212) are connected by receiving the first male connector (1111) in the first female connector (1212). The rail connector (1000) provides a third portion P3 of the running surface RS in the second configuration. In this way, assembly and/or disassembly of the first rail (10A) (i.e., the first length of the rail) and the second rail (10B) (i.e., the second length of the rail) may be easier and/or assembly errors may be reduced.)

1. A releasable rail connector for releasably connecting a first rail providing a first portion of a running surface of a wheel and a second rail providing a second portion of the running surface, the rail connector comprising:

a first member having a first end including a first male coupler and a second end configured to engage the first rail; and

a second member having a first end including a corresponding first female coupler and a second end configured to engage the second rail, the first female coupler configured to receive a first male coupler therein;

wherein the rail connector is arrangeable as:

a first configuration in which the first male and female connectors are separated; and

a second configuration in which the first male connector and the first female connector are connected by receiving the first male connector in the first female connector;

wherein the rail connector provides a third portion of the running surface in the second configuration.

2. A rail connector as claimed in claim 1, wherein the first female connector is arranged to slidably receive the first male connector therein, for example axially.

3. The rail connector of any preceding claim, wherein the first male and/or female connector comprises a buffer region arranged to facilitate movement of the rail connector between the first and second configurations.

4. The rail connector of any preceding claim, wherein the second end of the first member is arranged to engage with an end of the first rail and/or the second end of the second member is arranged to engage with an end of the second rail.

5. The rail connector of any preceding claim, wherein the second end of the first part comprises a second male connector and/or a second female connector for engaging with the first rail.

6. The rail connector of any preceding claim, wherein the first male connector comprises a circular cross-sectional shape.

7. The rail connector of any preceding claim, wherein the ratio of the length of the first male connector to its cross-sectional dimension, such as diameter or width, is in the range 0.5:1 to 5:1, preferably in the range 1:1 to 4:1, more preferably in the range 1.5:1 to 3: 1.

8. The rail connector of any preceding claim, wherein the first end of the second component provides at least part of the third portion of the running surface.

9. The rail connector of any preceding claim, wherein the first component provides at least part of the third portion of the running surface.

10. The rail connector of any preceding claim, wherein the running surface comprises a cylindrical running surface or a portion of a cylindrical running surface.

11. The rail connector of any preceding claim, comprising a third component, such as a fishplate, for attaching the first rail to the second rail.

12. A rail section providing a portion of a running surface of a wheel, the rail section comprising a rail and a first part and/or a second part of a rail connector according to any one of claims 1 to 11 engaged with the rail.

13. The rail section of claim 12, wherein the rail comprises a cylindrical tube, wherein the ride surface comprises a cylindrical ride surface or a portion of a cylindrical ride surface, and wherein the rail comprises a flange.

14. A method of manufacturing the rail segment according to any one of claims 12 to 13, the method comprising:

joining the first and/or second members of the rail coupler to the rail by welding; and

optionally, the weld is machined.

15. A rail assembly or kit of parts for a rail assembly comprising a set of rail sections according to any one of claims 12 to 13, including a first rail section and a second rail section.

16. The rail assembly according to claim 15, wherein the discontinuity of the running surface between the first and second rail sections, measured perpendicular and/or parallel to the running surface, is at most 1mm, preferably at most 0.5 mm.

17. A method of assembling the rail assembly of claim 15, comprising:

moving the rail connector from the first configuration to the second configuration.

Technical Field

The present invention relates to rail connectors for releasably connecting rails, and to rail assemblies comprising rails and such rail connectors.

Background

In general, a cableway (also called a zip-line), a cable (zip wire), an aerial slide (aerial runway), an aerial slide (aerial slide) comprises an inclined cable, which is fixed only at its upper and lower end, and a trolley (also called a trolley) comprising freely rotating pulleys. A user (i.e., a load) suspended from the sled can accelerate by gravity from the upper end of the inclined cable to the lower end. In use, the pulley rotates along the uppermost portion of the inclined cable. The slope of the inclined cable is typically in the range of 1/20 to 1/30. Typically, the inclined cable will sag and it is necessary to properly tension the inclined cable to control the acceleration of the user. Since the tilted cable is fixed only at its upper and lower ends, the tilted cable is limited to a linear path and does not have a lateral deviation such as a bend or turn.

To provide a non-linear path that includes lateral deviation, such as bends or turns, the cable may be replaced with a rail (typically a single rail). The non-linear path can cause the rail to bend around, for example, obstacles, and/or can increase the enjoyment of the user. The uppermost portion of the rail may be secured to a frame or suspended from, for example, a ceiling grid or tree, so that the area below the rail remains unobstructed for the passage of the sled and user. That is, the rails are suspended rails at a height on the ground typically in the range of 2m to 10 m. A typical rail comprises a tubular member having upstanding therefrom an axial (also referred to as longitudinal) flange for securing or suspending. The pulley is replaced by one or more freely rotatable wheels that rotate along the rail on the upper side or portions of the rail) away from the highest portion that is fixed. For example, the wheel may rotate on either side of the axial flange. For safety, the trolley may be arranged to be constrained to the rail such that the trolley (i.e. the constrained trolley) remains on the rail in use. Two or more carriers may be constrained on the rail so that two or more respective users may travel thereon. The rails are generally inclined with an average slope generally in the range of 1/10 to 1/60, although one or more descending sections, ascending sections and/or horizontal sections may be included. The total length of the rails may exceed 500m, including a plurality of bends or turns, descending sections, ascending sections and/or horizontal sections. The installed rail may be referred to as a track. The rails may be continuous rails (also known as circular rails) forming a closed track.

Typically, the rails are provided in multiple lengths (also referred to as sections) for assembly on site. Assembly of the rails typically involves fitting and joining adjacent lengths (typically by welding). Assembly and/or engagement can be complex, at least in part because the rails include multiple bends or turns, lowered portions, raised portions, and/or horizontal portions. Assembly errors (e.g., errors and/or discontinuities) may increase the load on the sled and/or the rails and/or increase the wear rate of the sled and/or the rails. These errors have adverse effects on, for example, rail integrity, sled reliability, and/or user safety. Errors such as cracks, lack of penetration, slag lines or undercuts can compromise the structural integrity of the rail. Discontinuities such as steps or gaps existing between adjacent lengths can increase loading and/or vibration and thus increase wear and/or fatigue. The assembly of the rails may be done in situ (i.e., at a height) as obstacles (e.g., pre-existing structures or trees) may complicate the assembly of the rails on the ground prior to subsequent rises to the height. Thus, errors may be more prevalent and/or exacerbated for on-site assembly. In addition, disassembly of the rails (e.g., to replace damaged lengths or to relocate the rails) can be problematic, such as requiring in-situ cutting and subsequent reassembly and re-engagement of the rails.

Accordingly, there is a need to improve the engagement of rails, for example to improve rail integrity, sled reliability, and/or user safety.

Disclosure of Invention

It is an object of one of the numerous objects of the present invention to provide a releasable rail connector, a rail segment comprising a portion of a rail connector, a method of manufacturing a rail segment, a rail assembly comprising a set of rail segments and a kit of parts for a rail assembly, and a method of assembling a rail assembly that at least partially eliminates or alleviates at least some of the disadvantages of the prior art, whether identified herein or elsewhere. In this way, rail integrity, sled reliability, and/or user safety may be improved.

A first aspect provides a releasable rail connector for releasably connecting a first rail providing a first portion of a running surface of a wheel and a second rail providing a second portion of the running surface, the rail connector comprising:

a first member having a first end including a first male coupler and a second end configured to engage the first rail; and

a second member having a first end including a corresponding first female coupler and a second end configured to engage the second rail, the first female coupler configured to receive a first male coupler therein;

wherein the rail connector is arrangeable as:

a first configuration in which the first male and female connectors are separated; and

a second configuration in which the first male connector and the first female connector are connected by receiving the first male connector in the first female connector;

wherein the rail connector provides a third portion of the running surface in the second configuration.

A second aspect provides a rail section providing a portion of a running surface of a wheel, the rail section comprising a rail and a first part and/or a second part of a rail connector according to the first aspect engaged with the rail.

A third aspect provides a method of manufacturing a rail segment according to the second aspect, the method comprising:

joining the first and/or second members of the rail coupler to the rail by welding; and

optionally, the weld is machined.

A fourth aspect provides a rail assembly or kit of parts for a rail assembly comprising a set of rail sections according to the second aspect, including a first rail section and a second rail section.

A fifth aspect provides a method of assembling a rail assembly according to the fourth aspect, comprising:

moving the rail connector from the first configuration to the second configuration.

Drawings

For a better understanding of the present invention, and to show how the exemplary embodiments of the present invention may be carried into effect, reference will now be made, by way of illustration only, to the accompanying drawings in which:

fig. 1 schematically depicts an exploded plan view of a rail assembly including a rail connector according to an exemplary embodiment arranged in a first configuration, according to an exemplary embodiment;

fig. 2 schematically depicts a plan view of the rail assembly of fig. 1, the rail assembly including rail connectors arranged in a second configuration;

FIG. 3 schematically depicts a longitudinal cross-sectional view of the rail connector of FIG. 2;

FIG. 4 schematically depicts a longitudinal cross-sectional view of the rail connector of FIG. 3 in greater detail;

FIG. 5 schematically depicts a perspective view of a first component of the rail connector of FIG. 1;

FIG. 6 schematically depicts a perspective view of a second component of the rail connector of FIG. 1;

fig. 7 schematically depicts a first component of the rail connector of fig. 5: (A) a front view; (B) a side view; and (C) a rear view;

fig. 8 schematically depicts a second component of the rail connector of fig. 6: (A) a front view; (B) a side view; (C) a rear view; and (D) a longitudinal cross-sectional view;

fig. 9 schematically depicts the rail of the rail assembly of fig. 1: (A) a plan view; (B) a side view; and (C) a front view;

fig. 10 schematically depicts a third component of the rail assembly of fig. 1: (A) a perspective view; (B) a side view; and (C) a front view; and

figure 11 schematically depicts a perspective view of the rail assembly of figure 1 including a sled thereon.

Detailed description of the drawings

Rail connector

Fig. 1 schematically depicts an exploded plan view of a rail assembly 1 according to one exemplary embodiment, the rail assembly 1 including a rail connector 1000 according to one exemplary embodiment arranged in a first configuration.

Fig. 2 schematically depicts a plan view of the rail assembly 1 of fig. 1, the rail assembly 1 including a rail connector 1000 arranged in a second configuration.

Fig. 3 schematically depicts a longitudinal cross-sectional view of the rail connector 1000 of fig. 2.

Fig. 4 schematically depicts a longitudinal cross-sectional view of the rail connector 1000 of fig. 3 in greater detail.

The releasable rail connector 1000 is used to releasably connect a first rail 10A and a second rail 10B. The first rail 10A has a first portion P1 of the running surface RS of the wheel 120. The second rail 10B has a second portion P2 of the running surface RS. The rail connector 1000 includes a first member 1100, the first member 1100 having a first end 1110 and a second end 1120, the first end 1110 including a first male connector 1111, the second end 1120 configured to engage with a first rail 10A. The rail connector 1000 includes a second member 1200, the second member 1200 having a first end 1210 and a second end 1220, the first end 1210 including a corresponding first female connector 1212, the first female connector 1212 configured to receive a first male connector 1111 therein, the second end 1220 configured to engage with a second rail 10B. The rail connector 1000 can be arranged in a first configuration in which the first male connector 1111 and the first female connector 1212 are separated. The rail connector 1000 can be arranged in a second configuration in which the first male connector 1111 and the first female connector 1212 are connected by receiving the first male connector 1111 in the first female connector 1212. In the second configuration, the rail connector 1000 provides a third portion P3 of the running surface RS.

In this way, assembly and disassembly of the first rail 10A (i.e., the first length of the rail) and the second rail 10B (i.e., the second length of the rail) may be easier and/or assembly errors may be reduced.

Fig. 5 schematically depicts a perspective view of a first component 1100 of the rail connector 1000 of fig. 1.

Fig. 6 schematically depicts a perspective view of a second component 1200 of the rail connector 1000 of fig. 1.

Fig. 7 schematically depicts a first component 1100 of the rail connector 1000 of fig. 5: (A) a front view; (B) a side view; and (C) a rear view.

Fig. 8 schematically depicts a second component 1200 of the rail connector 1000 of fig. 6: (A) a front view; (B) a side view; (C) a rear view; and (D) a longitudinal sectional view.

In this embodiment, the first male connector 1111 and the corresponding first female connector 1212 have corresponding shapes, in particular a plug and a socket, respectively.

In this embodiment, the first male connector 1111 includes a cylindrical outer shape, i.e., a plug. In this embodiment, the outer diameter D of the first male connection member 1111_m1,extIs turned to a tolerance in the range-0.02 mm to +0.00mm of the first connecting member diameter D of 51.00 mm.

In this embodiment, the length L of the first male connection member 1111_m1And its outer diameter D_m1,extIs about 2.4: 1.

Second member 1200 is as described for first member 1100 mutatis mutandis.

In this embodiment, the first female connector 1212 includes a cylindrical internal shape. In this embodiment, the inner diameter D of the first female connector 1212_f1,intIs drilled to a tolerance in the range-0.00 mm to +0.02mm of the 51.00mm first coupling member diameter D.

In this embodiment, the length L of the first female connector 1212_f1And its inner diameter D_f1,intIs about 2.5: 1.

In this embodiment, the first female connector 1212 is configured to have the first male connector 1111 slidably received therein in the axial direction.

Running surface

In this embodiment, the running surface RS is a continuous running surface RS having no or substantially no discontinuities therein, e.g., no protrusions thereon (e.g., protrusions) or no depressions therein (e.g., recesses). In this embodiment, the running surface RS comprises a convex, in particular cylindrical, running surface RS.

In this embodiment, the first member 1100 provides at least a portion of the third portion P3 of the running surface RS, and the first end 1110 of the second member 1200 provides at least a portion of the third portion P3 of the running surface RS. In this embodiment, the first member 1100 and the second member 1200 provide similar or equal portions of the third portion P3 of the running surface RS. In this embodiment, the outer surface of the first female connector 1212 provides at least a portion of the third portion P3 of the running surface RS.

In this embodiment, the running surface RS comprises a cylindrical running surface RS (e.g. provided by the tube 11) or a portion of a cylindrical running surface RS. In this embodiment, the first rail 10A includes a first tube 11, an outer diameter D of the first tube 11_ext60.3mm, whereby the first portion P1 of the running surface RS comprises a first portion P1 of the cylindrical running surface RS, the second rail 10B comprises a second tubular member 11, the second tubular member 11 having a diameter D_ext(i.e. at least nominally the same diameter as the first tubular member 11), whereby the second portion P2 of the running surface RS comprises a second portion P2 of the cylindrical running surface RS, and the rail connector 1000 comprises a second portion P2 having a diameter D_ext(i.e. at least nominally of the same diameter as the first and second tubular members 11, 11) whereby the third portion P3 of the running surface RS comprises a third portion P3 of the cylindrical running surface RS.

Buffer area

In this embodiment, the first female connector 1212 comprises a socket including a relief area 1213 disposed in a middle region thereof, the relief area 1213 having a relatively larger diameter than its adjacent regions. In this embodiment, the inner diameter D of the buffer area 1213 of the first female connector 1212_f1,rrIs drilled to the inner diameter D_f1,intIn the range of +2.00mm to +2.5 mm.

Coupled to rail ends

In this embodiment, the second end 1120 of the first member 1100 includes a second male connector 1121 for engaging with the first rail 10A. In this embodiment, the second end 1220 of the second member 1200 includes a second male coupling 1221 for engaging a second rail 10B.

In this embodiment, the first rail 10A includes a first tube 11A, an interior of the first tube 11ADiameter D_int53.9mm, the second rail 10B includes a second tube 11B, the second tube 11B having an inner diameter D_int(i.e., at least nominally the same inner diameter as first tube member 11A), second end 1120 of first member 1100 includes a second male connection member 1121, and second male connection member 1121 has an outer diameter D_m2,extWherein D is_m2,extAnd D_intAnd the second end 1120 of the second member 1200 includes a second male connector 1221, the second male connector 1221 having an outer diameter D_m2,extWherein D is_m2,extAnd D_intAnd (4) matching. It should be understood that D_m2,extAnd D_intMatch means D_m2,extAt most D_int. In this embodiment, the outer diameter D of the second male connection member 1121_m2,extIs turned to D_intIn the range of-1.00 mm to-0.75 mm. In this way, for example, insertion of the second male connector 1121 into the first rail 10A is facilitated.

Material

In this embodiment, the rail connector 1000 is formed from steel according to EN 10025-2:2004S355 grade. In this embodiment, the rail connector 1000 is powder coated.

Third part

Fig. 10 schematically depicts a third component of the rail assembly 1 of fig. 1: (A) a perspective view; (B) a side view; and (C) a front view.

In this embodiment, the rail connector 1000 comprises a third component 1300, in particular a set of fishplates, for attachment to the first rail 10A and the second rail 10B, in particular to the respective flanges of the first rail 10A and the second rail 10B. In this way, the first rail 10A and the second rail 10B may be aligned with each other. In this embodiment, the first fishplate 1300 includes a set of perforations 1303 therethrough for mechanical attachment to one side of the respective flanges 12A and 12B of the first and second rails 10A and 10B by a corresponding set of perforations 13 (e.g., using mechanical fasteners, such as pins and/or threaded fasteners) contained in the respective flanges 12A and 12B at the adjacent ends of the first and second rails. In this embodiment, the set of fishplates includes a first fishplate and a second fishplate, the first and second fishplates including respective sets of perforations therethrough for mechanically attaching to both sides of respective flanges of the first and second rails through a corresponding set of perforations (e.g., using threaded fasteners) contained in the respective flanges at adjacent ends of the first and second rails. In this embodiment, the perforations are of close tolerance, for example, in the range of +0.10 to +0.20 of the mechanical fastener (e.g., its shank). For example, the diameter of the perforations may be 14.00mm for an M14 bolt with a rod diameter of 13.80mm, or 12.00mm for an M12 bolt with a rod diameter of 11.80 mm.

Rail bar

Fig. 9 schematically depicts the rail 10 of the rail assembly 1 of fig. 1: (A) a plan view; (B) a side view; and (C) a front view.

In this embodiment, the rails 10 (i.e., the first rail 10A and/or the second rail 10B) include a cylindrical (e.g., convex) ride surface RS. In this embodiment, the rail comprises a cylindrical tube 11, wherein the running surface RS comprises the cylindrical running surface RS or a part of the cylindrical running surface RS, and wherein the rail comprises the flange 12. In this embodiment, the outer diameter D of the pipe 11_extIs 60.3 mm. In this embodiment, the wall thickness of the tube 11 is 3.2 mm. In this embodiment, the inner diameter D of the pipe 11_intIs 53.9 mm.

In this embodiment, the rail 10 is a single rail (i.e., a single rail).

In this embodiment, the rail 10 is formed from steel according to EN 10025-2:2004S275 or equivalent steel. In this embodiment, the pipe 11 is a seamless pipe 11. In this embodiment, the rails 10 are powder coated.

In this embodiment, a flange 12 having a thickness of 12mm and a height of 100mm is provided upright from the pipe 11, i.e., extending away from the pipe 11. In this embodiment, the flange 12 is longitudinally disposed with respect to the pipe 11. In this embodiment, the flange 12 faces the running surface RS perpendicularly. In this embodiment the rail comprises a longitudinal flange 12. In this embodiment, the flange 12 is arranged to provide a fixing, in particular a first set of 4 perforations 13 through the flange 12. In this embodiment, the longitudinal flange 12 comprises a second set of 4 perforations 13 through the flange 12. In this embodiment, the longitudinal flange 12 extends continuously along the length of the rail. In this embodiment, the flange 12 is welded to the pipe 11, for example continuously or intermittently (i.e., stitch-welded, e.g., on alternating sides of the flange 12) welded to the pipe 11.

In this embodiment, the length of the flange 12 is greater than the length of the pipe 11. In this embodiment, the flanges 12 extend beyond both ends of the tubular member 11 by a distance related to or consistent with (i.e., the same as or substantially the same as) a respective length or a portion of a respective length of the third portion P3 of the running surface RS provided by the first and/or second members 1100, 1200 of the rail connector 1000 engaged therewith.

Sliding vehicle

Figure 11 schematically depicts a perspective view of the rail assembly 1 of figure 1, the rail assembly 1 including a sled 100 thereon.

In this embodiment, the sled 100 includes: a frame 110; a set of wheels 120 including a first wheel 110A and a second wheel 120B rotatably connected to the frame 110; and an attachment (not shown) connected to the frame 110 for attaching (preferably suspending) a load L therefrom in use. The first wheel 110A is rotatable about a first axis in a first plane and the second wheel is rotatable about a second axis in a second plane. The first plane and the second plane define a line. Sled 100 may be configured to: a first configuration, wherein the attachment (not shown) is provided at a first angular displacement around the line; and a second configuration, wherein the attachment (not shown) is disposed at a second angular displacement about the line; wherein the first angular displacement and the second angular displacement are different.

In this embodiment, the sled 100 is a constrained sled 100, as described above. In this embodiment, a set of wheels 120 is provided to hold the sled 100 on the rails.

While preferred embodiments have been shown and described, it will be understood by those skilled in the art that changes and modifications may be made without departing from the scope of the invention, as defined in the appended claims and described above.

In general, releasable rail connectors, rail segments comprising a portion of a rail connector, methods of manufacturing rail segments, rail assemblies comprising a set of rail segments and kits of rail assemblies, and methods of assembling rail assemblies are provided.

A releasable track connector for releasably connecting a first track providing a first portion of a ride surface of a wheel and a second track providing a second portion of the ride surface, the track connector comprising: a first member having a first end including a first male coupler and a second end configured to engage the first rail; and a second member having a first end including a corresponding first female coupler and a second end configured to engage the second rail, the first female coupler configured to receive a first male coupler therein; wherein the rail connector is arrangeable as: a first configuration in which the first male and female connectors are separated; and a second configuration in which the first male connector and the first female connector are connected by receiving the first male connector in the first female connector; wherein the rail connector provides a third portion of the running surface in a second configuration.

In this way, assembly and/or disassembly of the first rail (i.e., the first length of the rail) and the second rail (i.e., the second length of the rail) may be easier and/or assembly errors may be reduced.

Attention is directed to all papers and documents which are filed concurrently with or previous to this specification in connection with this application and which are open to public inspection with this specification, and the contents of all such papers and documents are incorporated herein by reference.

All of the features disclosed in this specification (including any accompanying claims and drawings), and/or all of the steps of any method or process so disclosed, may be combined in any combination, except combinations where at least some of such features and/or steps are mutually exclusive.

Each feature disclosed in this specification (including any accompanying claims and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. Thus, unless expressly stated otherwise, each feature disclosed is one example only of a generic series of equivalent or similar features.

The invention is not restricted to the details of the foregoing embodiments. The invention extends to any novel one, or any novel combination, of the features disclosed in this specification (including any accompanying claims and drawings), or to any novel one, or any novel combination, of the steps of any method or process so disclosed.

Detailed Description

According to the present invention, there is provided a rail connector as set out in the appended claims. Rail segments that include a portion of a rail connector, methods of manufacturing rail segments, rail assemblies and kits of rail assemblies that include a set of rail segments, and methods of assembling rail assemblies are also provided. Further features of the invention will be apparent from the dependent claims and the description below.

Rail connector

A first aspect provides a releasable rail connector for releasably connecting a first rail providing a first portion of a running surface of a wheel and a second rail providing a second portion of the running surface, the rail connector comprising:

a first member having a first end including a first male coupler and a second end configured to engage a first rail;

a second member having a first end including a corresponding first female coupler and a second end configured to engage a second rail, the first female coupler configured to receive the first male coupler therein;

wherein the rail connector is arrangeable as:

a first configuration in which the first male and female connectors are separated; and

a second configuration in which the first male connector and the first female connector are connected by receiving the first male connector in the first female connector;

wherein the rail connector provides a third portion of the running surface in the second configuration.

In this way, assembly and/or disassembly of the first rail (i.e., the first length of the rail) and the second rail (i.e., the second length of the rail) may be easier and/or assembly errors may be reduced.

In particular, the rail connector is a releasable rail connector, thereby substantially reducing the effort and/or force required to connect the first rail and the second rail, for example, during field assembly. Thus, rail assembly may be provided by connecting such rail connectors disposed between successive lengths of rail, for example, in the field (including on-site). That is, conventional installation and/or welding may be avoided and/or eliminated. In addition, the disassembly of the rails is improved (e.g., to replace damaged lengths or to relocate the rails) and eliminates the need to make in-situ cuts, for example, prior to relocating and re-engaging the rails. In addition, because structural integrity can be maintained, the track connector can maintain and/or improve user safety even during significant deformation, as will be described in greater detail below. Also, grub screws are not required to retain the rail connector to the first rail and/or the second rail, thereby making assembly and disassembly easier, while also eliminating the maintenance requirements created by such grub screws. For example, grub screws may be jarred loose in use, compromising safety, and therefore requiring frequent maintenance for inspection or retightening.

In particular, since the connection of the rail connector functions by connecting the first male connector and the first female connector, the mounting error can be reduced. As described above, errors such as errors and/or discontinuities can increase the load on the sled and/or rails and/or increase the wear rate of the sled and/or rails. These errors can adversely affect, for example, rail integrity, sled reliability, and/or user safety. Errors such as cracks, lack of penetration, slag lines or undercuts can compromise the structural integrity of the rail. Discontinuities such as steps or gaps between adjacent lengths can increase loading and/or vibration and thus increase wear and/or fatigue. Assembly is complicated by obstacles (e.g., pre-existing structures or trees) that can interfere with the assembly of rails on the ground prior to subsequent rises to altitude. Thus, errors may be more prevalent and/or exacerbated with conventional in-situ assembly. Conversely, by joining the first male and female connectors, such errors are avoided and/or eliminated because conventional joining by welding is not required, while discontinuities can be controlled, for example, to within predetermined tolerances. In this way, rail integrity, sled reliability, and/or user safety may be improved.

The releasable rail connector is for releasably connecting a first rail providing a first portion of a ride surface of a wheel and a second rail providing a second portion of the ride surface.

It will be appreciated that the track connector is a releasable track connector which may be repeatedly connected and disconnected, for example. That is, the first rail and the second rail may be attached to each other using the rail connector and then detached.

It should be appreciated that the rail connector is used to releasably connect the first rail and the second rail. That is, the rail connector forms part of a rail assembly formed by connecting the first rail and the second rail via the rail connector, and thus contributes to the structural integrity of the rail assembly. In use, the rail assembly may withstand forces due to, for example, its weight, residual stresses therein, its securement (as described above), a sled riding thereon, and/or a load (e.g., a user) suspended therefrom. That is, the rail connector is used to structurally, for example, rigidly, elastically, and releasably connect the first rail and the second rail. In particular, the first male and female couplers, arranged in the second configuration, effectively transfer these forces between the first and second rails.

Typically, the load comprises a user and/or is a user, the user having a mass in the range of 30kg to 120kg and thus a weight in the range of 294N to 1,177N. Further, the centripetal force caused by the turning may increase up to 1.5g in the horizontal direction (i.e., up to 441N to 1,766N). In addition, the increased vertical load caused by the downward swing (e.g., the user swings from an inclined position to a vertical position) may increase up to 0.6g (i.e., up to, i.e., up to 176N-706N) in the vertical direction with no horizontal component. The user may be attached to the attachment by, for example, a harness (also referred to as a strap). The harness may comprise a D-ring of the back, for example for attachment to an attachment by a sling or lanyard. In this way, in use, a user may be suspended in a hanging glide (also known as a superman) posture (i.e., prone or face down). The sled may include a handle for the user to grasp when in this prone or face-down position.

It will be appreciated that in use, a load causes (i.e. generates) a vertically downward force due to gravity, which may be exerted at least in part on the rails by the trolley. The load may cause (i.e., generate) other forces, for example, due to pitch, yaw, and/or roll of the load and/or due to centripetal forces on the load, which may be exerted on the sled or by the sled on the rails, as described below. It will be appreciated that the rails are generally inclined, with an average slope typically in the range 1/10 to 1/60, although one or more descending sections, ascending sections and/or horizontal sections may be included. For example, the rails may include an initial length with an average slope of about 1/13 (to initially accelerate the sled), followed by an intermediate length with an average slope of about 1/25 (corresponding approximately to the constant speed of the sled), and a final length with an average slope of about 1/50 (to decelerate the sled).

It will be appreciated that the first rail provides a first portion of a running surface for a wheel (e.g. a wheel of a tackle) and the second rail provides a second portion of the running surface. That is, the running surface is a surface for running (e.g., rolling) the wheel. In one embodiment, the running surface is a continuous running surface with no or substantially no discontinuities therein, e.g., no protrusions thereon (i.e., protrusions) or no depressions therein (i.e., indentations). As described above, the discontinuities may increase loading and/or vibration, and thus increase wear and/or fatigue.

In one embodiment, the discontinuity in the running surface between the first rail section and the second rail section is at most 1mm, preferably at most 0.5mm, when measured perpendicular and/or parallel thereto.

In one embodiment, the running surface comprises a planar running surface and/or a non-planar running surface, such as a concave running surface or a convex running surface.

The rail connector includes a first member and a second member. It will be appreciated that the first and second parts are separable parts, i.e. the first and second parts are not, for example, integrally formed or permanently connected.

The rail connector includes a first member having a first end including a first male coupler and a second end configured to engage a first rail.

It will be appreciated that the first end of the first member and the second end of the first member are respective opposite ends of the first member.

It will be appreciated that the first male connector is arranged to be received in a corresponding first female connector. That is, the first male connector and the corresponding first female connector are thus provided by construction and/or adaptation (e.g., shaping). In one embodiment, the first male connector and the corresponding first female connector have corresponding shapes, such as a plug and a socket, respectively.

It will be appreciated that the second end of the first member is adapted to engage with the first rail, for example permanently such as by welding or non-permanently such as by gluing or interference fit, so that the first member and the first rail are structurally, securely and/or rigidly engaged. It will be appreciated that this non-permanent engagement method is not releasable and/or may cause damage during release and/or may prevent re-engagement.

In one embodiment, the first male connector comprises a protrusion, such as a plug.

In one embodiment, the first male connector comprises a circular outer cross-sectional shape. In one embodiment, the first male connector comprises a cylindrical outer shape or a frustoconical outer shape. In this way, the first male connection member may be provided, for example, machined (e.g., turned) to a high tolerance and/or surface finish. In this way, relative lateral movement between the first male and female connectors is reduced, thereby reducing discontinuities and/or wear due to movement therebetween in use. In one embodiment, the outer diameter D of the first male connector_m1,extIs arranged, for example, to be machined (e.g. turned) to a tolerance in the range-0.05 mm to +0.00mm, preferably in the range-0.02 mm to +0.00mm, more preferably in the range-0.01 mm to +0.00mm of the first connecting member diameter D.

In one embodiment, the ratio of the length of the first male connector to its cross-sectional dimension (e.g. diameter or width) is in the range of 0.5:1 to 5:1, preferably in the range of 1:1 to 3:1, more preferably in the range of 1.5:1 to 2.5: 1. In this way, the amount of male member received by the female member is relatively large, such that removal from the female member requires relatively large movements, thereby reducing the likelihood of failure in use, for example due to abnormal loading causing disconnection, and/or better resisting large plastic deformation of the first and/or second rails without catastrophic failure of the rail connections and/or rails.

The rail connector includes a second member having a first end including a corresponding first female coupler configured to receive the first male coupler therein and a second end configured to engage the second rail.

The second component can be varied in detail as described for the first component, mutatis mutandis.

It will be appreciated that the first end of the second component and the second end of the second component are respective opposite ends of the second component.

It will be appreciated that the first female connector is arranged to receive a corresponding first male connector. That is, the first male connector and the corresponding first female connector are thus provided by construction and/or adaptation (e.g., shaping). In one embodiment, the first male connector and the corresponding first female connector have corresponding shapes, such as a plug and a socket, respectively.

It will be appreciated that the second end of the second member is adapted to engage with the second rail, for example permanently such as by welding or non-permanently such as by gluing or interference fit, so as to structurally, securely and/or rigidly engage the second member and the second rail. It will be appreciated that this non-permanent engagement method is not releasable and/or may cause damage during release and/or may prevent re-engagement. In other words, the non-permanent engagement need not be a releasable connection as described herein.

In one embodiment, the first female connector comprises a recess, such as a socket.

In one embodiment, the first female connector comprises a circular internal cross-sectional shape, i.e. a circular bore. In one embodiment, the first female connector comprises a cylindrical internal shape or a frustoconical internal shape. In this way, the first female connection member may be provided, for example, machined (e.g., turned) to a high tolerance and/or surface finish. In this way, relative lateral movement between the first male and female connectors is reduced, thereby reducing discontinuities and/or wear due to movement therebetween in use. In one embodiment, the inner diameter D of the first female connector_f1,intQuilt coverFor example, to a tolerance in the range of-0.00 mm to +0.05mm, preferably in the range of-0.00 mm to +0.02mm, more preferably in the range of 0.00mm to +0.01mm of the first connecting part diameter D. In this way, the first male connector is closely received (i.e., a tight fit) in the first female connector, whereby the gap therebetween is as determined according to the tolerance. In particular, such a machine-to-machine releasable connection can effectively transfer loads between two adjacent rails through the connection.

In one embodiment, the ratio of the length of the first female connector to its cross-sectional dimension (e.g., diameter or width) is in the range of 0.5:1 to 5:1, preferably in the range of 1:1 to 3:1, more preferably in the range of 1.5:1 to 2.5: 1. In this way, the amount of male member received by the female member is relatively large, such that removal from the female member requires relatively large movements, thereby reducing the likelihood of failure in use, for example due to abnormal loading causing disconnection, and/or better resisting large plastic deformation of the first rail and/or the second, without serious failure of the rail connection and/or the rails.

In one embodiment, the first female connector is arranged to slidably receive the first male connector therein, for example in an axial direction. In this way, connection and disconnection are made easier.

In one embodiment, the first male connector and the first female connector are configured to interlock, for example, once the first male connector is fully received in the first female connector. In this way, inadvertent or accidental detachment can be prevented.

In one embodiment, the first male and female connections have corresponding threads. In this way, load transfer between the first and second components may be improved.

The track connector may be provided in a first configuration wherein the first male connector and the first female connector are separated. That is, the first configuration is an unassembled configuration, e.g., wherein the first male and female connectors are separate, e.g., spaced apart, e.g., separated by a gap.

The track connector may be provided in a second configuration wherein the first male connector member and the first female connector member are connected by receiving the first male connector member in the first female connector member. That is, the second configuration is an assembled configuration, such as a configuration in use.

Running surface

The rail connector provides a third portion of the running surface in the second configuration.

As described above, the first rail provides a first portion of a running surface for a wheel (e.g., a wheel of a tackle), and the second rail provides a second portion of the running surface. That is, the running surface is a surface for running (e.g., rolling) the wheel. In one embodiment, the running surface is a continuous running surface with no or substantially no discontinuities therein, e.g., no protrusions thereon (i.e., protrusions) or no depressions therein (i.e., indentations). As described above, the discontinuities may increase loading and/or vibration, and thus increase wear and/or fatigue. In one embodiment, the running surface comprises a planar running surface and/or a non-planar running surface, for example a concave running surface or a convex running surface.

Thus, in the second configuration, the third portion of the running surface is thus arranged between the first and second portions. That is, the wheel travels over a respective portion of the travel surface provided by the first rail, the rail coupler, and the second rail in turn. Thus, rather than a single interface conventionally defined between the first and second rails in use, two interfaces are defined in use (i.e. between the first rail and the rail connector, and between the rail connector and the second rail). Thus, due to the relatively tighter tolerances of, for example, the rail connectors, discontinuities (particularly steps) occurring at the individual interfaces due to relatively poorer tolerances and/or deformations between the first and second rails may be averaged out, thereby providing a more continuous running surface.

In one embodiment, the first end of the second member provides at least a portion of the third portion of the running surface. That is, the first female connector and at least a portion of the third portion of the running surface are both located at the first end. In one embodiment, the outer surface of the first female connector provides at least a portion of the third portion of the running surface.

In one embodiment, the first component provides at least a portion of the third portion of the running surface. In one embodiment, a surface of the first member proximate the second end provides at least a portion of the third portion of the running surface. In one embodiment, the second end of the first member includes a second male connection member, and a surface of the first member between the first and second ends provides at least a portion of the third portion of the running surface.

In one embodiment, the first component provides at least a portion of the third portion of the running surface and the first end of the second component provides at least a portion of the third portion of the running surface. In one embodiment, the first component and the second component provide a similar or equal portion of the third portion of the running surface.

In one embodiment, the running surface comprises a cylindrical running surface or a part of a cylindrical running surface, for example provided by a tube or a semicircular profile. In one embodiment, the first rail includes a first rail having an outer diameter D_extWhereby the first part of the running surface comprises a first part of a cylindrical running surface and the second rail comprises a second rail having a diameter D_ext(i.e. at least nominally the same diameter as the first tube) whereby the second portion of the running surface comprises a second portion of a cylindrical running surface and the rail connector comprises a second tube having a diameter D_ext(i.e. at least nominally of the same diameter as the first and second tubular members) whereby the third portion of the running surface comprises a third portion of the cylindrical running surface.

Buffer area

In one embodiment, the first male and/or female connector comprises a buffer region arranged to make it easier for the track connector to move between the first and second configurations. In this way, since the mutual alignment of the first male and female connectors is loose, it is convenient to move the track connector from the first configuration to the second configuration. For example, for plugs and receptacles that include such relief areas, the plugging may be initially off axis and directed to coaxial full plugging.

In one embodiment, the first male connector comprises a plug comprising a relief region disposed in an intermediate region thereof, e.g., having a relatively smaller diameter than an adjacent region thereof. In one embodiment, the first female connector comprises a receptacle comprising a relief region disposed in an intermediate region thereof, e.g., having a relatively larger diameter than an adjacent region thereof.

Coupled to rail ends

In one embodiment, the second end of the first member is configured to engage an end of the first rail (e.g., by welding), and/or the second end of the second member is configured to engage an end of the second rail.

In one embodiment, the second end of the first member includes a second male coupling and/or a second female coupling for engaging the first rail. In one embodiment, the second end of the second member comprises a second male coupling and/or a second female coupling for engaging with the first rail.

In one embodiment, the first rail includes a first rail having an inner diameter D_intThe second rail comprises a first pipe element having an inner diameter D_int(i.e., at least nominally the same inner diameter as the first tube) and the second end of the first member includes a second tube having an outer diameter D_m2,extA second male connecting member of (1), wherein D_m2,extAnd D_intAnd the second end of the second member includes a second end having an outer diameter D_m2,extA second male connecting member of (1), wherein D_m2,extAnd D_intAnd (4) matching. It should be understood that D_m2,extAnd D_intMatch means D_m2,extAt most D_int. In one embodiment, the outer diameter D of the second male connector_m2,extIs arranged, for example, to be machined (e.g. turned) to a diameter D_intIn the range of-2.00 mm to-0.25 mm, preferably at D_intIn the range of-1.50 mm to-0.50 mm, more preferably at D_intIn the range of-1.00 mm to-0.75 mm. In this way, the insertion of the second male connector into the first rail is for example made easier. In contrast to a relatively tight fit between the first male connector and the first female connector, a relatively loose fit between the second male connector and the first rail is provided, for example, because the first member and the first rail are permanently joined (e.g., by welding) or non-permanently joined (e.g., by bonding), thereby structurally, securely, and/or rigidly joining the first member and the first rail.

Material

In one embodiment, the rail connectors are formed from steel according to EN 10025-2:2004S185, S235, S275, S355 grades or equivalent. In one embodiment, the rail connectors are coated, such as powder coated, painted, and/or plated, to improve corrosion resistance.

Third part

In one embodiment, the rail connector includes a third component, such as a set of fishplates, including a first fishplate, for attaching the first rail to the second rail. In this way, the first rail and the second rail may be aligned with each other. In one embodiment, the first fishplate includes a set of perforations therethrough for mechanical attachment to one side of the respective flanges of the first and second rails by a corresponding set of perforations contained in the respective flanges at the adjacent ends of the first and second rails (e.g., using mechanical fasteners, such as pins and/or threaded fasteners). In one embodiment, the set of fishplates includes a first fishplate and a second fishplate, the first and second fishplates including respective sets of perforations therethrough for mechanically attaching to both sides of respective flanges of the first and second rails through a corresponding set of perforations (e.g., using threaded fasteners) contained in the respective flanges at adjacent ends of the first and second rails. In one embodiment, the perforations are close tolerance, for example, in the range of +0.10 to +0.20 of the mechanical fastener (e.g., its shank). For example, the diameter of the perforations may be 14.00mm for an M14 bolt with a rod diameter of 13.80mm, or 12.00mm for an M12 bolt with a rod diameter of 11.80 mm.

The first male and female couplers (and thus the first and second members) arranged in the second configuration are capable of efficiently transferring forces between the first and second rails. In contrast, the third member transfers only a relatively small portion of the force between the first and second rails, such that the force exerted by it on the mechanical fastener is relatively low.

Rail bar

In one embodiment, the rails comprise a planar (i.e. flat) ride surface, for example provided by square or rectangular bars or hollow profiles and/or by equiangular or non-equiangular profiles. In one embodiment, the rail comprises a non-planar, e.g. convex or concave, running surface. In one embodiment, the rail comprises a cylindrical (i.e. convex) running surface defining a cylindrical axis, wherein, in use, the line substantially coincides with the cylindrical axis, for example provided by a tube (i.e. a profile) having a circular cross-section or a portion thereof, for example provided by a U-shaped channel. Hollow profiles are preferred to reduce the weight of the rail. In one embodiment, the outer diameter D of the pipe_extIn the range 40mm to 100mm, preferably 50mm to 75mm, for example 60.3 mm. In one embodiment, the wall thickness of the tube is in the range of 1mm to 6mm, preferably in the range of 2mm to 5mm, for example 3mm or 4mm, for example 3.2 mm. In one embodiment, the inner diameter D of the tubular member_intIn the range of 35mm to 95mm, preferably in the range of 45mm to 70 mm.

In one embodiment, the rails include non-linear portions, such as curved portions. In this way, the non-linear portion can cause the rail to bend around, for example, an obstacle, and/or to increase user enjoyment, as described above. It will be appreciated that the non-linear portion is generally sideways (i.e. transverse to the general direction of travel of the trolley), although the rails may also curve sideways and upwards or downwards.

In one embodiment, the rails comprise two or more rails, such as two parallel rails. In one embodiment, the rails are single rails (i.e., a single rail). Single rails are preferred to reduce cost and/or weight, may be easily secured to a frame or hung from, for example, a ceiling grid or tree, and/or may be formed into relatively complex shapes, including multiple non-linear and linear sections, which may also be raised, lowered and/or horizontal.

In one embodiment, the rails are formed of steel according to EN 10025-2:2004S185, S235, S275, S355 grades or equivalent. In one embodiment, the tubular is a seamless tubular. In one embodiment, the rails are coated, e.g., powder coated, painted and/or plated, to improve corrosion resistance.

In one embodiment, the rail includes a flange. The flanges (also known as webs or stiffeners) increase the rigidity of the rail, for example, the bending resistance of the rail.

In one embodiment, the rail comprises a cylindrical tube, wherein the running surface comprises a cylindrical running surface or a part thereof, and wherein the rail comprises a flange.

In this way, a relatively complex non-linear path may be provided, including a lateral deviation (e.g. a bend or turn) and/or one or more descending, ascending and/or horizontal sections, for example provided by shaping (e.g. bending or rolling) the tube. Furthermore, because the tubular member has cylindrical symmetry, the transverse curvature of the running surface is relatively constant, including for relatively complex non-linear paths, thereby providing a more continuous running surface.

In one embodiment, the flange is arranged to stand upright, i.e. extend away from, the tube. In one embodiment, the flange is disposed longitudinally with respect to the tube. In one embodiment, the flange faces perpendicularly to the running surface. In one embodiment, the rail includes a longitudinal flange. In one embodiment, the flange is configured to provide a fixture, such as a lifting hole or perforation or a set of lifting holes or perforations through the flange, for suspending the rail from the fixture. Other fastening means are known. In this way, the rails may be secured to (e.g., suspended from) the frame or suspended on a ceiling grid or tree, for example, so that the area below the rails remains unobstructed for the passage of the sled and user. In one embodiment, the longitudinal flange comprises a first set of perforations for suspension. In one embodiment, the longitudinal flange includes a second set of perforations that coincide with a set of perforations provided in the third component of the rail connector. In one embodiment, the longitudinal flange extends continuously along the length of the rail. In one embodiment, the flange is welded to the tube, for example continuously or intermittently (i.e., stitch-welded, e.g., on alternating sides of the flange).

In a preferred embodiment, the rail comprises a cylindrical tube, wherein the running surface comprises the cylindrical running surface or a part thereof, and wherein the rail comprises a longitudinal flange extending continuously along the tube, perpendicular to (i.e. standing upright from) the tube.

In one embodiment, the length of the flange is greater than the length of the tube. For example, the flange may extend beyond one or both ends of the tube. In one embodiment, the flanges extend beyond both ends of the tube by a distance related to or coincident with (i.e., the same as or substantially the same as) a respective length or a portion of the respective length of the third portion of the running surface provided by the first and/or second components of the rail connector with which they are engaged. In this way, when the rail connector is set to the second configuration, the respective ends of the flanges of adjacent rails abut or face-to-face.

Track section

A second aspect provides a rail section providing a portion of a running surface for a wheel, the rail section comprising a rail and a first part and/or a second part of the rail connector according to the first aspect engaged therewith.

The running surface and/or the rail may be as described for the first aspect. For example, the rails may be as described for the first rail or the second rail of the first aspect.

In one embodiment, the rail comprises a cylindrical tube, wherein the running surface comprises a cylindrical running surface or a part thereof, and wherein the rail comprises a flange.

In this way, a relatively complex non-linear path may be provided, including a lateral deviation (e.g. a bend or turn) and/or one or more descending, ascending and/or horizontal sections, for example provided by shaping (e.g. bending or rolling) the tube. Furthermore, because the tubular member has cylindrical symmetry, the transverse curvature of the running surface is relatively constant, including for relatively complex non-linear paths, thereby providing a more continuous running surface.

In one embodiment, the rails are provided in multiple lengths that are connected end-to-end (e.g., in the field).

Manufacturing method

A third aspect provides a method of manufacturing a rail segment according to the second aspect, the method comprising:

joining the first and/or second parts of the rail connector to the rail by welding; and

optionally, the weld is machined.

In one embodiment, the method comprises: the rail is provided by joining the flange to the pipe by welding, for example, by stitch welding. In one embodiment, the method comprises: the pipe and/or flange are preferably shaped (e.g. by bending and/or rolling) prior to joining the flange to the pipe, thereby forming a bend therein. In one embodiment, the flange has a length greater than the length of the pipe, and the method includes: the flange is arranged to extend beyond one or both ends of the pipe before joining the flange to the pipe. In one embodiment, the method comprises: the first part and/or the second part are arranged such that the respective length or a portion of the respective length of the third portion of the running surface provided by the first part and/or the second part of the rail connector is associated with or coincides with (i.e. equal or substantially equal to) the respective length or a portion of the respective length of the flange extending beyond one or both ends of the tube. In this way, when the rail connector is set to the second configuration, the respective ends of the flanges of adjacent rails abut or face-to-face.

Rail assembly or kit of parts

A fourth aspect provides a rail assembly (also referred to as a track) or kit of parts for a rail assembly, comprising a set of rail segments according to the second aspect, including a first rail segment and a second rail segment.

In one embodiment, the rail assembly includes a set of M rail segments, where M is a natural number greater than 2, 5, 10, 20, 30, 40, 50, 100, or more. In this way, a track can be conveniently provided. In one embodiment, the length of each rail section is in the range of 1m to 40m, preferably in the range of 2m to 30m, more preferably in the range of 5m to 20m, for example 9m, 10m or 12 m.

Assembling method

A fifth aspect provides a method of assembling a rail assembly according to the fourth aspect, comprising:

moving the rail connector from the first configuration to the second configuration.

In one embodiment, the method comprises: the rail assembly is disassembled by moving the rail connector from the second configuration to the first configuration.

Sliding vehicle

According to one aspect, there is provided a trolley for a rail, the trolley comprising:

a frame;

a set of wheels including a first wheel and a second wheel rotatably connected to the frame; and

an attachment connected to the frame for attaching (preferably suspending) a load therefrom in use;

wherein the first wheel is rotatable about a first axis in a first plane and the second wheel is rotatable about a second axis in a second plane;

wherein the first plane and the second plane define a line;

wherein the sled is arrangeable to:

a first configuration in which the attachment is disposed about the line at a first angular displacement; and

a second configuration, wherein the attachment is disposed about the wire at a second angular displacement, wherein the first and second angular displacements are different.

Definition of

In this specification, the terms "comprises" and "comprising" are intended to comprise the stated component or components, unit or units, module or units, feature or features, or integer or integers, but not to preclude the presence or addition of other components, units, modules, features, or integers.

The term "consists of or" consists of "is intended to include one or more elements, one or more units, one or more modules, one or more features, or one or more integers as specified, but not other elements, units, modules, features, or integers.

The use of the terms "comprising" or "including" can also be considered to include the meaning of "consisting essentially of" or "consisting essentially of", and can also be considered to include the meaning of "consisting of" or "consisting of", as appropriate, depending on the context.

The optional features set out herein may be used alone or in combination with one another where appropriate, especially in combination as set out in the appended claims. Where applicable, optional features of each aspect or exemplary embodiment of the invention set forth herein may also be applied to all other aspects or exemplary embodiments of the invention. In other words, a person skilled in the art who has read this specification will recognize that each aspect of the invention or optional features of the exemplary embodiments are interchangeable or combinable between different aspects and exemplary embodiments.