阅读说明：本技术 路径限制部件、夹持件以及线束 (Path limiting component, clamping piece and harness ) 是由 河口智哉 木本裕一 于 2018-03-23 设计创作，主要内容包括：一种线束,具备：电线；外装件(21),其具有可挠性,并且覆盖电线；以及路径限制部件(31),其具有沿着电线所布线的路径的轴线方向,从外装件(21)的外部对电线所布线的路径进行限制。线束具备夹持件(41),夹持件(41)具有对路径限制部件(31)进行支承的环状结构的支承部(51)和安装外装件(21)的环状结构的安装部(61)。路径限制部件(31)具有限制凹部(32),限制凹部(32)通过与支承部(51)的环状结构嵌合,从而在路径限制部件(31)和支承部(51)限制路径限制部件(31)的沿着轴线方向的相对移动。(A kind of harness, has: electric wire；Exterior component (21) has pliability, and covers electric wire；And path limiting component (31), there is the axis direction in the path being routed along electric wire, the path being routed from the outside of exterior component (21) to electric wire limits.Harness has clamping piece (41), and clamping piece (41) has the supporting part (51) of the cyclic structure supported to path limiting component (31) and installs the mounting portion (61) of the cyclic structure of exterior component (21).Path limiting component (31) has limitation recess portion (32), recess portion (32) are limited by chimeric with the cyclic structure of supporting part (51), thus in the relative movement along axis direction of path limiting component (31) and supporting part (51) constrained Path limiting component (31).)

1. a kind of path limiting component, the component parts as harness,

The harness has: electric wire；Exterior component has pliability, and covers the electric wire；And clamping piece, have The supporting part for the cyclic structure that the path limiting component is supported and install the exterior component cyclic structure installation Portion,

The path limiting component is characterized in that,

The path limiting component has the axis direction in the path being routed along the electric wire, from the outside of the exterior component The path being routed to the electric wire limits,

The path limiting component has limitation recess portion, the limitation ring of the recess portion by the supporting part with the clamping piece Shape structure is chimeric, thus the path limiting component and the supporting part limit the path limiting component along axis side To relative movement.

2. path limiting component according to claim 1, which is characterized in that

The limitation recess arrangement is in the radially opposed position in the path limiting component.

3. path limiting component according to claim 1, which is characterized in that

The limitation recess portion is made of the axial screw shape slot around the path limiting component.

4. according to claim 1 to the path limiting component described in any one of claim 3, which is characterized in that

The limitation recess portion includes the 1st limitation recess portion and the 2nd limitation recess portion, and the 2nd limitation recess arrangement is in the path The position different from the 1st limitation recess portion on the axis direction of limiting component.

5. a kind of clamping piece, the component parts as harness,

The harness has: electric wire；Exterior component has pliability, and covers the electric wire；And path limiting component, It has the axis direction in the path being routed along the electric wire, is routed from the outside of the exterior component to the electric wire Path is limited,

The clamping piece is characterized in that,

The clamping piece has the supporting part of the cyclic structure supported to the path limiting component and installs the exterior The cyclic structure of the mounting portion of the cyclic structure of part, the supporting part is constituted are as follows: passes through what is had with the path limiting component Limit that recess portion is chimeric, thus the path limiting component and the supporting part limit the path limiting component along axis The relative movement in direction.

6. clamping piece according to claim 5, which is characterized in that

The cyclic structure of the mounting portion has the insertion section that can be inserted into the exterior component along the radial direction of the cyclic structure,

The clamping piece, which has, is connected to the cyclic structure of the mounting portion with what the cyclic structure of the supporting part was interconnected Portion,

The clamping piece is constituted are as follows: is supported on the path limiting component being inserted into from the insertion section by the interconnecting part The supporting part.

7. according to claim 5 or clamping piece as claimed in claim 6, which is characterized in that

The exterior component has annular recessed portion, and the mounting portion of the clamping piece is configured to chimeric with the annular recessed portion.

8. a kind of harness, has:

Electric wire；

Exterior component has pliability, and covers the electric wire；

Path limiting component has the axis direction in the path being routed along the electric wire, from the outside of the exterior component The path being routed to the electric wire limits；And

Clamping piece has the supporting part of the cyclic structure supported to the path limiting component and installs the exterior component Cyclic structure mounting portion,

The harness is characterized in that,

The path limiting component have limitation recess portion, the limitation recess portion by chimeric with the cyclic structure of the supporting part, To limit moving along the opposite of axis direction for the path limiting component in the path limiting component and the supporting part It is dynamic.

Technical field

The present invention relates to path limiting component, clamping piece and harness.

Background technique

As patent document 1 is open, it is known that have the harness of skeleton part, wave of the skeleton part from protection electric wire The path that the outside of line pipe is routed electric wire limits.

Summary of the invention

Subject to be solved by the invention

As described above, having the path of the electric wire of flexible exterior component protection can be by by exterior component with bellows etc. Link with path limiting component (skeleton part) to limit.The connection of path limiting component and exterior component uses clamping piece.Here, The supporting part of clamping piece and the path limiting component supported by the supporting part are sometimes along the axis direction phase of path limiting component To movement.Since such relative movement, such as supporting part are prone to wear, it is possible to clamping piece is to path limiting component Bearing becomes unstable.

The present invention be it is completed to solve the above problems, its purpose is to provide can to limitation exterior component path Path limiting component the path limiting component, clamping piece and the harness that are steadily supported.

Solution for solving the problem

The path limiting component of the above subject, the component parts as harness are solved, the harness has: electric wire；Exterior Part has pliability, and covers the electric wire；And clamping piece, have and the path limiting component is supported Cyclic structure supporting part and install the exterior component cyclic structure mounting portion, the path limiting component have along The axis direction in the path that the electric wire is routed, the path being routed from the outside of the exterior component to the electric wire limit System, the path limiting component have limitation recess portion, the limitation ring of the recess portion by the supporting part with the clamping piece Shape structure is chimeric, thus the path limiting component and the supporting part limit the path limiting component along axis side To relative movement.

According to this configuration, in the supporting part of clamping piece and path limiting component can constrained Path limiting component along axis The relative movement in line direction.

In above-mentioned path limiting component or, the limitation recess arrangement in the path limiting component radially Opposed position.

For example, the limitation recess portion of path limiting component can configure as described above.

In above-mentioned path limiting component or, the limitation recess arrangement in the path limiting component radially Opposed position.

For example, the limitation recess portion of path limiting component can configure as described above.

In above-mentioned path limiting component preferably, the limitation recess portion includes the 1st limitation recess portion and the 2nd limitation recess portion, institute The 2nd limitation recess arrangement is stated in position different from the 1st limitation recess portion on the axis direction in the path limiting component.

According to this configuration, the position for the supporting part for making it be supported on clamping piece can be selected in the limiting component of path.

The clamping piece of the above subject, the component parts as harness are solved, the harness has: electric wire；Exterior component, having can Flexibility, and cover the electric wire；And path limiting component, there is the axis side in the path being routed along the electric wire To the path being routed from the outside of the exterior component to the electric wire limits, and the clamping piece has to the path The mounting portion of the cyclic structure of the supporting part and installation exterior component for the cyclic structure that limiting component is supported, the bearing The cyclic structure in portion is constituted are as follows: and it is chimeric by the limitation recess portion having with the path limiting component, to be limited in the path Component processed and the supporting part limit the relative movement along axis direction of the path limiting component.

It is preferably in above-mentioned clamping piece, the cyclic structure of the mounting portion has can be along the radial direction of the cyclic structure The insertion section that the exterior component is inserted into, the clamping piece have the ring of the cyclic structure and the supporting part that make the mounting portion The interconnected interconnecting part of shape structure, the clamping piece are constituted are as follows: make the path limiting component being inserted into from the insertion section The supporting part is supported on by the interconnecting part.

According to this configuration, the middle part of path limiting component can be made to be supported on the supporting part of clamping piece.

In above-mentioned clamping piece preferably, the exterior component has annular recessed portion, and the mounting portion of the clamping piece is constituted It is chimeric with the annular recessed portion.

According to this configuration, it can inhibit movement of the exterior component relative to the axis direction of the mounting portion of clamping piece.Therefore, pass through The path limiting component of the supporting part bearing of clamped part can suitably limit the path of exterior component.

The harness for solving the above subject has: electric wire；Exterior component has pliability, and covers the electric wire；Path Limiting component has the axis direction in the path being routed along the electric wire, from the outside of the exterior component to the electricity The path that line is routed is limited；And clamping piece, there is the cyclic structure supported to the path limiting component Supporting part and install the exterior component cyclic structure mounting portion, the path limiting component has limitation recess portion, described Recess portion is limited by chimeric with the cyclic structure of the supporting part, to limit in the path limiting component and the supporting part The relative movement along axis direction of the path limiting component.

Invention effect

In accordance with the invention it is possible to steadily be supported to the path limiting component in the path of limitation exterior component.

Detailed description of the invention

Fig. 1 is the diagrammatic top view for showing the harness of embodiment.

Fig. 2 is the schematic diagram for showing the wire laying mode of the harness in vehicle.

Fig. 3 is by the perspective view shown in the exploded of harness.

Fig. 4 is the partial perspective view for showing harness.

Fig. 5 is the partial sectional view for showing the modification of harness.

Fig. 6 (a) is the top view for showing the modification of harness, and Fig. 6 (b) is the main view for showing the modification of clamping piece.

Specific embodiment

The embodiment of path limiting component, clamping piece and harness is illustrated below.

As shown in Figure 1, harness 10 has: electric wire 11；Exterior component 21 has pliability, and covers electric wire 11；Path limitation Component 31, the path being routed from the outside of exterior component 21 to electric wire 11 limit；Middle part clamping piece 41, bearing The middle part of path limiting component 31；And end clamping piece 42, the end of support path limiting component 31.

<wire laying mode>

As shown in Fig. 2, harness 10 is used for the purposes being electrically connected to the 1st machine 91 and the 2nd machine 92 that are equipped on vehicle 90. 1st machine 91 is configured at the front side of vehicle 90.2nd machine 92 is configured at the rear side of vehicle 90.For example, the 1st machine 91 and One side of the 2nd machine 92 is battery, and another party is inverter.Alternatively, it is also possible to make a side of the 1st machine 91 and the 2nd machine 92 It is motor, another party is inverter.As vehicle 90, such as electric car, hybrid vehicle, fuel cell vapour can be enumerated Vehicle etc..The harness 10 of present embodiment is routed at the floor lower face of vehicle 90.

<electric wire 11>

Electric wire 11 includes conductive core wire；And the insulating coating with insulating properties.Core wire is for example by copper or aluminium Equal conductive materials are formed.Core wire is made of single line material or more wire rods.Insulating coating is as well-known by polychlorostyrene second The insulating materials such as alkene are formed as tubular.

As shown in Figure 1, two ends of electric wire 11 pass through connector portion C1, C2 composition respectively.Electric wire 11 is high-tension bus-bar, It is electrically connected with the input and output terminal of the 1st machine 91 and the 2nd machine 92 that are equipped on vehicle 90.The volume of for motor vehicle high-tension bus-bar Constant voltage is more than 30V in the case where exchange, is more than 60V in the case where direct current.In addition, for motor vehicle high-tension bus-bar is specified Voltage is 600V in the case where exchange hereinafter, being 750V or less in the case where direct current.

Electric wire 11 can both have shielding shielding electromagnetic waves part, can also in addition configure electromagnetic wave in the periphery of electric wire 11 Shielding part.As shielding part, such as it can suitably use and compile the metal wire of aluminium, stainless steel, copper or these alloy etc. Be woven to it is netted made of structure knitting member.

<exterior component 21>

Exterior component 21 is by having pliability to be configured to deform along the routing path of electric wire 11.Exterior component 21 is by covering Covered electric wire 11 and protect electric wire 11.Exterior component 21 is configured to the tubular with direction of elongate, in internal space configuration electric wire 11. Exterior component 21 is preferably formed by resin material for example from the viewpoint of lightweight.As resin material, such as polyene can be enumerated Hydrocarbon, polyamide, polyester, ABS resin etc..As the concrete example of exterior component 21, such as the pitch tube of bellows, hard can be enumerated Deng.

The exterior component 21 of present embodiment is bellows, is configured with multiple annular recessed portions 22 along direction of elongate by having Structure, be thus configured to be easily bent or bending.

Exterior component 21 also can have in the gap that direction of elongate extends.In the case where exterior component 21 has gap, Neng Goutong Cross the inside that electric wire 11 is configured at exterior component 21 by the gap.In addition, passing through basis in the case where exterior component 21 has gap Need for the binding pieces such as adhesive tape to be wound in the periphery of exterior component 21, so as to prevent electric wire 11 from exposing from gap.

<path limiting component 31>

Path limiting component 31 has the axis direction in the path being routed along electric wire 11.Path limiting component 31 is with from exterior The mode that the outside of part 21 locally limits the path of electric wire 11 configures.Constituted the path limiting component 31 of harness 10 both It can be one, be also possible to multiple.That is, either multiple sections in the electric wire 11 of harness 10 are by multiple path limiting units Part 31 limits, and is also possible in electric wire 11 section and is limited by a path limiting component 31.In addition, path limiting component 31 both can be only made of straight line portion, it is possible to have pars convoluta.

As shown in figure 3, path limiting component 31 has the limitation recess portion 32 of multiple aftermentioned relative movements of limitation.It limits recessed Portion 32 includes the 1st limitation recess portion 32a and the 2nd limitation recess portion 32b, and the 2nd, which limits recess portion 32b, is configured in path limiting component 31 The position different from the 1st limitation recess portion 32a on axis direction.Path limiting component 31 for example can be by cutting bar-like member It is broken into the cutting off processing for predetermined length, the punch process for being plastically deformed peripheral shape, the cutting cut outer peripheral surface Processing, bending machining for being deformed along the path that electric wire 11 is routed etc. and formed.Path limiting component 31 also can be Mold internal shaping.

Path limiting component 31 is able to maintain that the electric wire in the configuration of the inside of exterior component 21 by having the material of rigidity to be formed 11 path.Path limiting component 31, preferably can plasticity change from the viewpoint of it can set path by bending machining The material of shape.As the material of path limiting component 31, metal material can be suitably used.As metal material, such as can enumerate Aluminium, iron, copper or these alloy etc..In addition, path limiting component 31 can be tubulose.

<middle part clamping piece 41 and end clamping piece 42>

As shown in Figure 1, middle part clamping piece 41 and end clamping piece 42 have the supporting part of support path limiting component 31 51 and installation exterior component 21 mounting portion 61.End clamping piece 42 further has the fixed part 71 for being fixed on vehicle 90.

Firstly, the relationship of supporting part 51 and path limiting component 31 to middle part clamping piece 41 is illustrated.

As shown in Figures 3 and 4, in middle part in clamping piece 41, the supporting part 51 of support path limiting component 31 has ring-type Structure.The cyclic structure of supporting part 51 is chimeric by the limitation recess portion 32 with path limiting component 31, thus in 51 He of supporting part The relative movement along axis direction of constrained Path limiting component 31 in path limiting component 31.

In other words, in path limiting component 31, pass through the limit supported by the supporting part 51 of middle part clamping piece 41 Recess portion 32 processed is chimeric with the cyclic structure of supporting part 51, thus in path limiting component 31 and supporting part constrained Path limiting component 31 relative movement along axis direction.

Then, the mounting portion 61 of middle part clamping piece 41 is illustrated.

The mounting portion 61 of middle part clamping piece 41 has cyclic structure.The cyclic structure of mounting portion 61 has can be along the ring-type The insertion section 62 that exterior component 21 is inserted by the radial direction of structure.That is, the cyclic structure of mounting portion 61 is discontinuous cyclic structure, tool The 2nd end 62b that has the 1st end 62a and can be separated with the 1st end 62a.The cyclic structure of mounting portion 61 is configured to deform Are as follows: the insertion posture that can be inserted into exterior component 21 from the insertion section 62 between the 1st end 62a and the 2nd end 62b；And installation There is the mounting position of exterior component 21.That is, the cyclic structure of mounting portion 61 can be with the interval of the 1st end 62a and the 2nd end 62b (width of insertion section 62) widened mode flexible deformation.In addition, mounting portion 61 also may be constructed are as follows: be equipped with exterior component 21 Mounting position under, the 1st end 62a and the 2nd end 62b contact.

Then, the relationship of the supporting part 51 to middle part clamping piece 41 and mounting portion 61 is illustrated.

The company that middle part clamping piece 41 has the cyclic structure of the cyclic structure and supporting part 51 that make mounting portion 61 interconnected Logical portion 41a.Middle part is constituted with clamping piece 41 are as follows: the path limiting component 31 being inserted into from the insertion section of mounting portion 61 62 is via even Logical portion 41a is supported on supporting part 51.That is, the cyclic structure of mounting portion 61 can be deformed into insertion posture, and in the case where being inserted into posture, energy Path limiting component 31 is inserted into from the insertion section 62 between the 1st end 62a and the 2nd end 62b.In addition, middle part clamps Posture that the interconnecting part 41a of part 41 can be deformed into that path limiting component 31 can pass through widen and support path limiting component 31 Support posture.

Then, the relationship of the mounting portion 61 to middle part clamping piece 41 and exterior component 21 is illustrated.

The mounting portion 61 of middle part clamping piece 41 is configured to the size chimeric with the annular recessed portion 22 of exterior component 21.Exterior component 21 Annular recessed portion 22 along the direction of elongate of exterior component 21 configured with multiple, therefore can select to be installed in exterior component 21 The position in dress portion 61.As long as in addition, dimension modifying of the size of mounting portion 61 according to the annular recessed portion 22 of exterior component 21.Separately Outside, the cyclic structure of mounting portion 61 can also be changed to such as flowering structure: with chimeric with multiple annular recessed portions 22 of exterior component 21 Mode has multiple protrusions.

Then, end clamping piece 42 is illustrated.

End shown in Fig. 1 is in clamping piece 42, the structure and installation exterior of the supporting part 51 of support path limiting component 31 The structure of the mounting portion 61 of part 21 can be using the known features that can play the function as supporting part 51 and mounting portion 61.It is preferred that The supporting part 51 of end clamping piece 42 is the hat shape for the wall portion that the end face with path limiting component 31 abuts.

End clamping piece 42 further has the fixed part 71 for being fixed on vehicle 90.Fixed part 71 has for bolt The through hole of insert.End can be fixed on vehicle 90 using screw bolt and nut with clamping piece 42.Bolt can also weld in advance In vehicle 90.In addition, the fixed part 71 of end clamping piece 42 is for example also possible to and is set to the mounting hole locking of vehicle 90 Clip.

Middle part clamping piece 41 and end can be formed with clamping piece 42 by metal material or resin material.Middle part With clamping piece 41 and end clamping piece 42 for example from the viewpoint of lightweight, preferably formed by resin material.As resin Material, such as polyolefin, polyamide, polyester, ABS resin can be enumerated etc..

<manufacturing method>

Then, illustrate an example of the manufacturing method of harness 10.

In order to manufacture harness 10, path limiting component 31 is made to be supported on each of middle part clamping piece 41 and end clamping piece 42 Supporting part 51, and exterior component 21 is installed on to each mounting portion 61 of middle part clamping piece 41 and end clamping piece 42.

As shown in Figures 3 and 4, in order to make path limiting component 31 be supported on the supporting part 51 of middle part clamping piece 41, Firstly, being inserted into path limiting component 31 from the insertion section 62 of the mounting portion 61 of middle part clamping piece 41.Then, limit path Component 31 is supported on supporting part 51 by the interconnecting part 41a of middle part clamping piece 41.At this point, by middle part clamping piece 41 Supporting part 51 cyclic structure it is chimeric with the limitation recess portion 32 of path limiting component 31.

Then, exterior component 21 is installed to the mounting portion 61 of middle part clamping piece 41.In addition, electric wire 11 is in exterior component 21 The configuration of inside exterior component 21 is being installed to each mounting portion 61 of middle part clamping piece 41 and end clamping piece 42 It is front or rear to be ok.

A pair of end portions that the harness 10 obtained in this way is preferably provided with two ends of at least support path limiting component 31 is used Clamping piece 42 and a pair of end portions clamping piece of the middle part between clamping piece 42 41.In addition, being also able to use end clamping Path limiting component 31 is fixed on vehicle 90 by the clamping piece other than part 42.

Then, the function and effect of present embodiment are illustrated.

(1) path limiting component 31 has limitation recess portion 32, and limitation recess portion 32 passes through the supporting part with middle part with clamping piece 41 51 cyclic structure is chimeric, thus in 51 constrained Path limiting component 31 of path limiting component 31 and supporting part along axis side To relative movement.

According to this configuration, because road can be limited in the supporting part 51 and path limiting component 31 of middle part clamping piece 41 The relative movement along axis direction of diameter limiting component 31, so can be to the path limiting unit in the path of limitation exterior component 21 Part 31 is steadily supported.

(2) the limitation recess portion 32 of path limiting component 31 includes the 1st limitation recess portion 32a and the 2nd limitation recess portion 32b, the 2nd limit Recess portion 32b processed is configured at different from the 1st limitation recess portion 32a positions on the axis direction of path limiting component 31.

In this case, it can select that it is made to be supported on the bearing of middle part clamping piece 41 in path limiting component 31 The position in portion 51.Therefore, it can be improved the versatility of path limiting component 31.That is, can also be suitable for designing different harness 10。

(3) cyclic structure of the supporting part 51 of middle part clamping piece 41 is constituted are as follows: by having with path limiting component 31 Some limitation recess portions 32 are chimeric, thus in 51 constrained Path limiting component 31 of path limiting component 31 and supporting part along axis The relative movement in direction.

According to this configuration, function and effect same as the function and effect described in above-mentioned (1) can be obtained.

(4) have can be along the radial by exterior component of the cyclic structure for the cyclic structure of the mounting portion 61 of middle part clamping piece 41 The insertion section 62 of 21 insertions.Middle part clamping piece 41 have make the cyclic structure of mounting portion 61 and the cyclic structure of supporting part 51 Interconnected interconnecting part 41a.Middle part is constituted with clamping piece 41 are as follows: the path limiting component 31 being inserted into from insertion section 62 passes through Interconnecting part 41a is supported on supporting part 51.

In this case, the middle part of path limiting component 31 can be made to be supported on the supporting part of middle part clamping piece 41 51.Therefore, even the long path limiting component 31 of such as length, it can also be made successfully to be supported on middle part folder Gripping member 41.In addition, being also easy for example in the middle part of path limiting component 31 in the fractional additional middle part folder for needing to support Gripping member 41.Therefore, the design freedom of harness 10 can be increased.

(5) exterior component 21 has annular recessed portion 22.The mounting portion 61 of middle part clamping piece 41 be also configured to outside The annular recessed portion 22 of piece installing 21 is chimeric.

In this case, it can inhibit shifting of the exterior component 21 relative to the axis direction of the mounting portion 61 of middle part clamping piece 41 It is dynamic.Therefore, exterior can suitably be limited by the path limiting component 31 supported by the supporting part 51 of middle part clamping piece 41 The path of part 21.

Above embodiment can also be configured to by following change.

The quantity of the limitation recess portion 32 of path limiting component 31 is not limited to multiple, is also possible to one.

As shown in figure 5, also the limitation recess portion 32 of path limiting component 31 can be configured at the diameter in path limiting component 31 Opposed position upwards.

As shown in Fig. 6 (a) and Fig. 6 (b), the limitation recess portion 32 of path limiting component 31 also can be by limiting around path The axial screw shape slot of component 31 is constituted.In addition, can also for example be made of middle part clamping piece 41 metal wire.In the situation Under, the 1st end 62a and the 2nd end 62b of the mounting portion 61 about middle part clamping piece 41, illustration omitted, but can also be with It is configured to engage and binding together and reversing.

Also the shape of the mounting portion 61 of middle part clamping piece 41 can be changed to not recessed with the ring-type of exterior component 21 The chimeric shape in portion 22.

Also it may be constructed are as follows: the interconnecting part 41a of middle part clamping piece 41 is omitted, supporting part 51 and mounting portion 61 are become Independent cyclic structure.In this case, the supporting part 51 of middle part clamping piece 41 can be also changed to have along ring The supporting part for the insertion section that path limiting component 31 is inserted by the radial direction of shape structure.

Also the structure of the supporting part 51 in above-mentioned middle part clamping piece 41 can be suitable for end clamping piece 42 Supporting part 51.In addition, also the structure of the mounting portion 61 in above-mentioned middle part clamping piece 41 can be pressed from both sides suitable for end The mounting portion 61 of gripping member 42.

The electric wire 11 of harness 10 is also possible to low tension wire, and also can about the position being electrically connected using harness 10 It suitably changes.

Technical characteristic in the respective embodiments described above and modification can also be combined.

The exterior component 21 of embodiment is an example of flexible protective pipe.The path limiting component 31 of embodiment is to be used for Exterior component 21 is positioned to an example of the elongate guide part on preset routing path.The limitation of path limiting component 31 Recess portion 32 is an example of at least one stage portion.The clamping piece 41 of embodiment may be configured as being installed on elongate guide part (31) And it dangles and supports the flexible protective pipe lifting hook of flexible protective pipe (21).In several installation examples, clamping piece 41 may be configured as one Part.