阅读说明：本技术 悬臂装置 (Cantilever device ) 是由 洪钦瑞 于 2018-09-20 设计创作，主要内容包括：一种悬臂装置,包含相隔间距的第一关节座与第二关节座,及枢接在第一关节座与第二关节座间且与第一关节座、第二关节座构成四连杆机构的两个悬臂。每一个悬臂枢包括沿宽度方向相隔第一宽度且沿长度方向延伸的两个侧板,及连接侧板且沿长度方向延伸的面板,每一个侧板具有面向相邻侧板的内板面,及反向于内板面的外板面,且至少其中悬臂的每一个侧板还具有沿长度方向延伸且与内板面、外板面二者至少其中一者形成有位差的至少一侧向增强结构。借此,以侧向增强结构增强侧板的刚性,不但能够提升悬臂的荷重能力,且能够延长使用寿命。(A cantilever device comprises a first joint seat and a second joint seat which are separated by a distance, and two cantilevers which are pivoted between the first joint seat and the second joint seat and form a four-bar mechanism together with the first joint seat and the second joint seat. Each cantilever pivot comprises two side plates which are separated by a first width along the width direction and extend along the length direction, and a panel which is connected with the side plates and extends along the length direction, each side plate is provided with an inner plate surface facing to the adjacent side plate and an outer plate surface opposite to the inner plate surface, and each side plate of at least one cantilever is also provided with at least one lateral reinforcing structure which extends along the length direction and forms a position difference with at least one of the inner plate surface and the outer plate surface. Therefore, the rigidity of the side plate is enhanced through the lateral enhancement structure, the loading capacity of the cantilever can be improved, and the service life can be prolonged.)

1. A cantilever apparatus, comprising:

the joint unit comprises a first joint seat and a second joint seat which are separated by a distance; and

the two cantilevers are pivoted between the first joint seat and the second joint seat and form a four-bar linkage with the first joint seat and the second joint seat, each cantilever comprises two side plates which are separated by a first width along the width direction and extend along the length direction, and a panel which is connected with the side plates and extends along the length direction, and each side plate is provided with an inner plate surface facing to the adjacent side plate and an outer plate surface opposite to the inner plate surface;

the method is characterized in that:

each side plate of at least one of the cantilever arms is also provided with at least one lateral reinforcing structure which extends along the length direction and forms a position difference with at least one of the inner plate surface and the outer plate surface.

2. The boom apparatus of claim 1, wherein: each side plate of each cantilever is also provided with a lateral reinforcing structure forming a position difference with at least one of the inner plate surface and the outer plate surface.

3. The boom apparatus of claim 2, wherein: the at least one lateral reinforcement structure of each side panel has a projection protruding from the outer panel surface and defining a cavity opening toward the inner panel surface.

4. The boom apparatus of claim 3, wherein: each side plate of each cantilever further has an edge formed at a side and extending in the length direction, and the panel is connected to the edge of the side plate.

5. The boom apparatus of claim 4, wherein: the convex part of the at least one lateral reinforcing structure of each side plate is provided with two straight line sections and a turning section which is connected with the straight line sections and forms an included angle with the adjacent straight line sections.

6. The boom apparatus of claim 4, wherein: each cantilever further comprises two corner reinforcing structures, the panel is provided with two side edges which correspond to the edges of the side plates and are separated by a second width along the width direction, and each corner reinforcing structure is connected to the edge of the corresponding side plate and the side edge corresponding to the panel.

7. The boom apparatus of claim 6, wherein: each side panel of each cantilever further has two first end edges spaced apart by a first length along the length direction, and the panel further has two second end edges spaced apart by a second length along the length direction, the first length > the second length.

8. The boom apparatus of claim 7, wherein: one of the cantilevered panels also has a notch extending from one of the second end edges to the other of the second end edges.

9. The boom apparatus of claim 6, wherein: the first width > the second width.

10. The boom apparatus of claim 6, wherein: each curb plate still has the connection the both ends at edge and with the edge is two of contained angle and rolls over the reason, the panel still has two at least book reason, each book reason of panel is connected in the lateral margin that corresponds, and each corner reinforcing structure has plane portion, and at least one inclined plane portion, plane portion connect in the edge of respective curb plate with the lateral margin that the panel corresponds, at least one inclined plane portion connect in between plane portion and the corresponding book reason.

Technical Field

The present invention relates to a cantilever, and more particularly, to a cantilever device.

Background

A conventional cantilever device disclosed in taiwan patent No. M548619 is suitable for suspending an object (e.g., a screen). Referring to patent M548619, the cantilever device mainly includes an upper arm and a lower arm that are vertically and oppositely engaged, an end cap seat and a connecting seat that are pivoted to form a four-bar linkage with the upper arm and the lower arm, a telescopic mechanism penetrating between the upper arm and the lower arm, and a driven seat connected to an end of the telescopic mechanism. Therefore, the object is supported by the upper arm piece and the lower arm piece, and the telescopic mechanism loads the object, so that the object is stable at a preset position.

The top arm and the bottom arm are usually designed in the form of plates for reducing the overall weight and volume, but they must have sufficient structural strength to support the object, otherwise they are easily bent or even broken.

Disclosure of Invention

The invention aims to provide a cantilever device capable of improving the loading capacity and prolonging the service life.

The cantilever device comprises a joint unit and two cantilevers.

The joint unit comprises a first joint seat and a second joint seat which are separated by a distance.

The cantilever is pivoted between the first joint seat and the second joint seat and forms a four-bar linkage with the first joint seat and the second joint seat, each cantilever comprises two side plates which are separated by a first width along the width direction and extend along the length direction, and a panel which is connected with the side plates and extends along the length direction, each side plate is provided with an inner plate surface facing to an adjacent side plate and an outer plate surface opposite to the inner plate surface, and each side plate of at least one cantilever is also provided with at least one lateral reinforcing structure which extends along the length direction and forms a position difference with at least one of the inner plate surface and the outer plate surface.

In the cantilever device, each side plate of each cantilever further has a lateral reinforcing structure forming a position difference with at least one of the inner plate surface and the outer plate surface.

In the cantilever apparatus of the present invention, the at least one lateral reinforcement structure of each side plate has a protrusion protruding from the outer plate surface and defining a cavity opening toward the inner plate surface.

In the cantilever device of the present invention, each side plate of each cantilever further has an edge formed at a side and extending in the length direction, and the panel is connected to the edge of the side plate.

In the cantilever device, the convex part of the at least one lateral reinforcing structure of each side plate is provided with two straight line sections and a turning section which is connected with the straight line sections and forms an included angle with the adjacent straight line sections.

In the cantilever device, each cantilever further comprises two corner reinforcing structures, the panel is provided with two side edges which correspond to the edges of the side plates and are separated by a second width along the width direction, and each corner reinforcing structure is connected to the edge of the corresponding side plate and the side edge corresponding to the panel.

In the cantilever device, each side plate of each cantilever further has two first end edges separated by a first length along the length direction, and the panel further has two second end edges separated by a second length along the length direction, wherein the first length is greater than the second length.

The cantilever arrangement of the present invention wherein the face plate of one of the cantilevers further has a notch extending from one of the second end edges to the other of the second end edges.

In the cantilever apparatus of the present invention, the first width > the second width.

In the cantilever device, each side plate is also provided with two folding edges which are connected with two ends of the edge and form an included angle with the edge, the panel is also provided with at least two folding edges, each folding edge of the panel is connected with the corresponding side edge, each corner reinforcing structure is provided with a plane part and at least one inclined plane part, the plane part is connected with the edge of the respective side plate and the corresponding side edge of the panel, and the at least one inclined plane part is connected between the plane part and the corresponding folding edge.

The invention has the beneficial effects that: the lateral reinforcing structure is used for reinforcing the rigidity of the side plate relative to the concave and convex structures formed by the inner plate surface and the outer plate surface, so that the loading capacity of the cantilever can be improved, and the service life of the cantilever can be prolonged.

Drawings

Other features and effects of the present invention will become apparent from the following detailed description of the embodiments with reference to the accompanying drawings, in which:

FIG. 1 is a perspective view illustrating one embodiment of a cantilever assembly of the present invention;

FIG. 2 is a cross-sectional view of the embodiment;

FIG. 3 is a perspective view of a cantilever according to the embodiment;

FIG. 4 is a cross-sectional view taken along line IV-IV of FIG. 3;

FIG. 5 is a cross-sectional view taken along line V-V in FIG. 4;

FIG. 6 is a perspective view of another cantilever according to the embodiment;

FIG. 7 is a cross-sectional view taken along line VII-VII in FIG. 6; and

fig. 8 is a sectional view taken along line viii-viii in fig. 7.

Detailed Description

Referring to fig. 1 and 2, an embodiment of the cantilever apparatus of the present invention is adapted to support an object 1 (e.g., a screen). The boom device comprises a joint unit 2 and two booms 3, 4.

The joint unit 2 comprises a first joint seat 21 and a second joint seat 22 separated by a distance.

The cantilevers 3, 4 are pivotally connected between the first joint seat 21 and the second joint seat 22, and form a four-bar linkage with the first joint seat 21 and the second joint seat 22. In this embodiment, the arms 3, 4 are aligned to define a channel 30.

Referring to fig. 3, 4 and 5, the cantilever 3 includes two side panels 31 separated by a first width W1 along a width direction X and extending along a length direction Y, a panel 32 connecting the side panels 31 and extending along the length direction Y, and two corner reinforcing structures 33.

Each side plate 31 has an inner plate surface 311 facing an adjacent side plate 31, an outer plate surface 312 opposite to the inner plate surface 311, an edge 313 formed on one side and extending along the length direction Y, two folding edges 310 connecting two ends of the edge 313 and forming an included angle with the edge 313, two first end edges 315 separated by a first length L1 along the length direction Y, two through holes 316 extending along the width direction X and adjacent to the first end edges 315, and two lateral reinforcing structures 317. Each lateral reinforcing structure 317 has a protrusion 319 protruding from the outer plate surface 312 and defining a cavity 318 opening toward the inner plate surface 311. The convex portion 319 has two straight segments 3191 and a turning segment 3192. The turning section 3192 is connected to the straight section 3191, and the connected straight section 3191 forms an included angle θ.

The panel 32 has two second end edges 320, 321 separated by a second length L2 along the length direction Y, two side edges 322 separated by a second width W2 along the width direction X, two folding edges 323, and a notch 324 extending from one of the second end edges 321 to the other second end edge 321. Each fold edge 323 is adjacent to the end edge 320 and connects the corresponding side edge 322 with the corresponding side panel 31.

It should be noted that, in the present embodiment, the first length L1> the second length L2. The first width W1> the second width W2, and the included angle θ is 160 degrees.

Each of the corner reinforcing structures 33 has a flat portion 331 and a sloped portion 332. The planar portion 331 is connected to a side edge 322 of the side plate 31 corresponding to the panel 32. The inclined surface portion 332 is connected between the flat surface portion 331 and the corresponding flanges 323 and 310.

Referring to fig. 6, 7 and 8, the cantilever 4 includes two side panels 41 separated by a first width W3 along the width direction X and extending along the length direction Y, a panel 42 connecting the side panels 41 and extending along the length direction Y, and two corner reinforcing structures 43.

Each side panel 41 has an inner panel surface 411 facing the adjacent side panel 31, an outer panel surface 412 opposite to the inner panel surface 411, an edge 413 formed on one side and extending along the length direction Y, two folding edges 410 connecting two ends of the edge 313 and forming an included angle with the edge 313, two first end edges 415 separated by a first length L3 along the length direction Y, two through holes 416 extending along the width direction X and adjacent to the first end edges 415, and two lateral reinforcing structures 417. Each lateral reinforcing structure 417 has a protrusion 419 protruding from the outer panel 412 and defining a cavity 418 opening toward the inner panel 411. The protrusion 419 has two straight sections 4191 and a turning section 4192. The turning section 4192 is connected to the straight section 4191 and forms an angle θ with the connected straight section 4191.

The panel 42 has two second end edges 420, 421 separated by a second length L4 along the length direction Y, two side edges 422 separated by a second width W4 along the width direction X, and four fold edges 423. Each fold 423 connects a respective side edge 422 with a respective fold 410.

It should be noted that, in the present embodiment, the first length L3> the second length L4. The first width W3> the second width W4, and the included angle θ is 160 degrees.

Each corner reinforcing structure 43 has a planar portion 431 and two beveled portions 432. The planar portions 431 are connected between the edges 413 of the respective side plates 41 and the side edges 422 of the panel 42. Each inclined surface portion 432 is connected to the planar portion 431 and is formed between the corresponding folded edge 423 and the corresponding folded edge 410.

Therefore, the lateral reinforcing structures 317 and 417 on the cantilevers 3 and 4 are used for improving the rigidity of the side plates 31 and 41, and the corner reinforcing structures 33 and 43 are used for improving the structural strength between the panels 32 and 42 and the side plates 31 and 41, so that the load bearing capacity of the cantilevers 3 and 4 is enhanced, and the service life is prolonged.

The lateral reinforcing structures 317 and 417 and the corner reinforcing structures 33 and 43 may be integrally formed with the cantilevers 3 and 4 when the cantilevers 3 and 4 are stamped, so that each cantilever 3 and 4 may be maintained as a plate design, and the structural strength and rigidity may be improved without increasing the overall weight and volume.

From the above description, the advantages of the foregoing embodiments can be summarized as follows:

the present invention can improve the rigidity of the side plates 31, 41 by the lateral reinforcing structures 317, 417, and the structural strength between the panels 32, 42 and the side plates 31, 41 by the corner reinforcing structures 33, 43, thereby not only improving the load bearing capacity of each cantilever 3, 4, but also prolonging the service life of each cantilever 3, 4 without increasing the overall weight and volume.

The above description is only an example of the present invention, and the scope of the present invention should not be limited thereby, and the invention is still within the scope of the present invention by simple equivalent changes and modifications made according to the claims and the contents of the specification.