A side armrest rotating structure

Abstract

This utility model relates to the field of automotive seat accessories, specifically disclosing a side armrest rotation structure, including a first mounting housing, a second mounting housing, an axial limiting plate, a retaining spring, and a connecting shaft. The connecting shaft passes through the first and second mounting housings and includes a first connecting segment, a second connecting segment, and a third connecting segment arranged sequentially along the axial direction. The outer walls of the first, second, and third connecting segments are provided with limiting teeth with the same protruding direction. The axial limiting plate is provided with a limiting hole that matches the shape of the third connecting segment. The retaining spring is connected to the second mounting housing, and the second connecting segment abuts against the retaining spring. The outer wall of the connecting shaft is provided with a relief groove to avoid the retaining spring. The connecting shaft passes through the limiting hole, and the third connecting segment abuts against the axial limiting plate. The axial limiting plate is connected to the second mounting housing. This utility model, by setting multiple segments on the connecting shaft and using the limiting teeth to distinguish the correct installation direction, reduces the installation difficulty of the connecting shaft and improves installation accuracy.

Description

Technical Field

[0001] This utility model relates to the field of automotive seat accessories, and in particular to seat armrest structures. Background Technology

[0002] Armrests, as part of the seat back, can alleviate discomfort caused by the upper limbs hanging down for extended periods. In the automotive industry, there are increasingly higher requirements for the durability, safety, and production cost of seat armrests.

[0003] The existing rotating handrail structure involves many parts and requires many complex procedures during installation. It is prone to errors during installation, requires skilled workers, and is not conducive to efficient production, thus restricting production efficiency.

[0004] The technical problem to be solved by this application is: how to improve the accuracy of the installation of the handrail rotating structure and reduce the installation difficulty. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a side armrest rotation structure.

[0006] The technical solution adopted by this utility model is as follows: a side armrest rotation structure, including a first mounting shell, a second mounting shell, an axial limiting plate, a retaining ring, and a connecting shaft. The retaining ring is disposed in the mounting space formed by the first mounting shell and the second mounting shell. The connecting shaft passes through the first mounting shell and the second mounting shell. The connecting shaft includes a first connecting segment, a second connecting segment, and a third connecting segment arranged sequentially in the axial direction. The outer walls of the first connecting segment, the second connecting segment, and the third connecting segment are provided with limiting teeth with the same protrusion direction. The axial limiting plate is provided with a limiting hole that matches the shape of the third connecting segment. The retaining ring is connected to the second mounting shell. The second connecting segment abuts against the retaining ring. The outer wall of the connecting shaft is provided with a relief groove to avoid the retaining ring. The connecting shaft passes through the limiting hole and the third connecting segment abuts against the axial limiting plate. The axial limiting plate is connected to the second mounting shell.

[0007] In some embodiments, a first mounting groove is provided between the first connecting segment and the second connecting segment, and the portion of the second connecting segment that abuts against the retaining ring is disposed in the first mounting groove.

[0008] In some embodiments, a second mounting groove is provided between the second connecting segment and the third connecting segment, and the portion of the third connecting segment that abuts against the axial limiting piece is disposed in the second mounting groove.

[0009] In some embodiments, the connecting shaft includes a fixed section, which has the largest diameter on the connecting shaft and is connected to the side armrest.

[0010] In some embodiments, the height of the limiting tooth protrusion on the third connecting segment is not higher than that of the limiting tooth of the second connecting segment or the first connecting segment.

[0011] In some embodiments, a bushing is included, which is fitted onto the outer wall of the first connecting section, and the inner wall of the bushing is shaped to fit the outer wall of the first connecting section.

[0012] In some embodiments, a first lubrication bushing is provided, a first mounting housing has a first mounting hole, and the first lubrication bushing is disposed between the bushing and the first mounting hole.

[0013] In some embodiments, a second lubrication bushing is included, which is snap-fitted to a second mounting housing, and a retaining ring is connected to the second mounting housing via the second lubrication bushing.

[0014] The beneficial effects of this utility model are as follows:

[0015] This side armrest rotation structure, by setting multiple segments on the connecting shaft and using limiting teeth, can distinguish the correct installation direction, thereby reducing the installation difficulty of the connecting shaft and improving installation accuracy. Since the retaining spring is set inside the housing, the installation between the retaining spring and the connecting shaft is also completed during the installation of the connecting shaft. Because the protrusion direction of the limiting teeth on each segment of the connecting shaft is consistent, the connection between the retaining spring and the connecting shaft can be confirmed after the installation of the axial limiting plate and the connecting shaft, thus improving installation efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of Example 1;

[0017] Figure 2 This is a schematic cross-sectional view of the structure in Example 1;

[0018] Figure 3 This is a schematic diagram of the connecting shaft.

[0019] Figure 4 This is an exploded view of the structure of Example 1;

[0020] Figure 5 This is a schematic diagram showing the structural connection between the connecting shaft, the snap ring, and the axial limiting piece.

[0021] The labels and names in the diagram correspond as follows: 1. First mounting housing; 2. Second mounting housing; 3. Connecting shaft; 4. Star-shaped retaining ring; 5. Rotary limiting plate; 6. Bushing; 7. First lubrication bushing; 8. Second lubrication bushing; 9. Axial limiting plate; 10. Snap ring; 31. Fixed section; 32. First connecting section; 33. Second connecting section; 34. Third connecting section; 35. Limiting tooth; 36. First mounting groove; 37. Second mounting groove; 38. Clearance groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1 and Figure 4 This utility model provides a technical solution: a side armrest rotation structure, including a first mounting shell 1, a second mounting shell 2, a star-shaped retaining ring 4, a rotation limiting piece 5, a bushing 6, a first lubrication bushing 7, a second lubrication bushing 8, an axial limiting piece 9, a retaining ring 10, and a connecting shaft 3.

[0024] Please see Figure 2 The first mounting housing 1 and the second mounting housing 2 are fixedly connected, forming an installation space. The first mounting housing 1 is provided with a first mounting hole, and the second mounting housing 2 is provided with a second mounting hole. The first mounting hole and the second mounting hole are on the same axis, and the first mounting hole and the second mounting hole are respectively connected to the installation space.

[0025] The bushing 6, the second lubrication bushing 8, and the snap ring 10 are arranged in the installation space.

[0026] Please see Figures 2-5 The connecting shaft 3 passes through the first mounting hole and the second mounting hole, passing through the first mounting housing 1 and the second mounting housing 2. The connecting shaft 3 includes a fixed section 31, a first connecting section 32, a second connecting section 33, and a third connecting section 34 arranged axially in sequence. The fixed section 31 has the largest diameter on the connecting shaft 3 and is connected to the side armrest. The outer walls of the first connecting section 32, the second connecting section 33, and the third connecting section 34 are provided with limiting teeth 35 with the same protrusion direction. The height of the limiting teeth 35 on the third connecting section 34 is not higher than that of the limiting teeth 35 on the second connecting section 33 or the first connecting section 32. A bushing 6 is fitted onto the outer wall of the first connecting section 32. The inner wall of the bushing 6 matches the shape of the outer wall of the first connecting section 32. The bushing 6 can restrict the insertion direction of the connecting shaft 3 from the beginning of the installation. A first mounting groove 36 is provided between the first connecting section 32 and the second connecting section 33, and a second mounting groove 37 is provided between the second connecting section 33 and the third connecting section 34. The outer walls of the first mounting groove 36 and the second mounting groove 37 are smooth. The bushing 6 passes through the first mounting hole, and the star-shaped retaining ring 4 and the rotating limiting piece 5 are fitted on the outer wall of the bushing 6. The star-shaped retaining ring 4 and the rotating limiting piece 5 are used to limit the opening and closing angle of the handrail. This is existing technology and will not be described in detail.

[0027] To reduce friction during rotation, a first lubrication bushing 7 is provided between the bushing 6 and the first mounting hole.

[0028] The second lubrication bushing 8 is snap-fitted to the second mounting housing 2. One end of the second lubrication bushing 8 is fitted onto the outer wall of the bushing 6, and the other end is snap-fitted to the second mounting housing 2. The retaining ring 10 is connected to the second lubrication bushing 8 and is disposed in the first mounting groove 36. The part of the second connecting section 33 that abuts against the retaining ring 10 is disposed in the first mounting groove 36, that is, the retaining ring 10 and the connecting shaft 3 will not have relative axial movement.

[0029] In order to avoid the snap ring 10, the outer wall of the connecting shaft 3 is provided with a relief groove 38. When the connecting shaft 3 moves axially, the relief groove 38 can avoid the connection position between the snap ring 10 and the second connecting section 33 under normal working conditions.

[0030] The axial limiting plate 9 is connected to the second mounting housing 2 by welding. The axial limiting plate 9 has a limiting hole that matches the shape of the third connecting section 34. In the normal use state of the handrail, the connecting shaft 3 passes through the limiting hole and the third connecting section 34 abuts against the axial limiting plate 9. The part of the third connecting section 34 that abuts against the axial limiting plate 9 is located in the second mounting groove 37.

[0031] The working principle and usage process of this utility model: Before installing the side armrest, the worker must ensure that the adjustment mechanism already installed inside the seat back is installed. The second mounting housing 2 is provided with a paint pen marking hole. The rotating limit piece 5 points to the paint pen marking hole of the second mounting housing 2 and the rotating limit piece 5 and the paint pen marking hole are aligned.

[0032] The worker slowly inserts the connecting shaft 3 along the internal toothed profile of the bushing 6. Because the bushing 6 is rotatable and the paint pen marking hole becomes invisible during the insertion of the side armrest, the worker must insert it slowly and steadily to minimize the rotation of the armrest.

[0033] When the worker pushes the side handrail in, the connecting shaft 3 needs to be aligned with the hole of the axial limiting piece 9; otherwise, it cannot be pushed in further. If the worker finds that it cannot be pushed in further, since the retaining spring 10 has not yet formed contact with the connecting shaft 3, the worker does not need to use tools. Instead, the worker can slightly rotate the side handrail by hand until the connecting shaft 3 is aligned with the hole of the axial limiting piece, and then it can be pushed in.

[0034] As the worker continues to push the side handrail in and rotates the connecting shaft 3 until the snap ring 10 abuts against the second connecting section 33, it ensures that the snap ring can be engaged without tools.

[0035] Once the worker completes the snap-fit, the side armrest cannot be pushed in any further, thus completing the assembly.

[0036] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A side arm rest rotation structure characterized by, The system includes a first mounting housing (1), a second mounting housing (2), an axial limiting piece (9), a retaining ring (10), and a connecting shaft (3). The retaining ring (10) is disposed within the mounting space formed by the first mounting housing (1) and the second mounting housing (2). The connecting shaft (3) passes through the first mounting housing (1) and the second mounting housing (2). The connecting shaft (3) includes a first connecting segment (32), a second connecting segment (33), and a third connecting segment (34) arranged sequentially along the axial direction. The outer wall of the connecting section (34) is provided with limiting teeth (35) with the same protrusion direction. The axial limiting piece (9) is provided with a limiting hole that matches the shape of the third connecting section (34). The snap ring (10) is connected to the second mounting housing (2). The second connecting section (33) abuts against the snap ring (10). The outer wall of the connecting shaft (3) is provided with a relief groove (38) to avoid the snap ring (10). The connecting shaft (3) passes through the limiting hole and the third connecting section (34) abuts against the axial limiting piece (9). The axial limiting piece (9) is connected to the second mounting housing (2).

2. A side arm rotation structure according to claim 1, characterized in that A first mounting groove (36) is provided between the first connecting segment (32) and the second connecting segment (33), and the part of the second connecting segment (33) that abuts against the snap ring (10) is provided in the first mounting groove (36).

3. A side arm rotation structure according to claim 1, wherein A second mounting groove (37) is provided between the second connecting section (33) and the third connecting section (34), and the part of the third connecting section (34) that abuts against the axial limiting piece (9) is provided in the second mounting groove (37).

4. A side arm rotation structure according to claim 1, wherein The connecting shaft (3) includes a fixed section (31), which has the largest diameter on the connecting shaft (3) and is connected to the side armrest.

5. A side arm rotation structure according to claim 1, wherein The height of the protrusion of the limiting tooth (35) on the third connecting segment (34) is not higher than that of the limiting tooth (35) of the second connecting segment (33) or the first connecting segment (32).

6. A side arm rotation structure according to claim 1, wherein Includes a bushing (6), which is fitted onto the outer wall of the first connecting section (32), and the inner wall of the bushing (6) is shaped to match the outer wall of the first connecting section (32).

7. A side arm rotation structure according to claim 6, wherein Includes a first lubrication bushing (7), the first mounting housing (1) is provided with a first mounting hole, and the first lubrication bushing (7) is disposed between the bushing (6) and the first mounting hole.

8. A side arm rotation structure according to claim 6, wherein It includes a second lubrication bushing (8), which is snap-fitted to the second mounting housing (2), and the snap ring (10) is connected to the second mounting housing (2) through the second lubrication bushing (8).

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