A cushioning device, an automobile armrest and a seat

Abstract

The utility model relates to vehicle handrail structure technical field discloses a kind of buffer device, car handrail and seat, including handrail framework and rotating shaft turntable being connected on handrail framework, and elastic buffer portion is connected on handrail framework, the outer wall of rotating shaft turntable is fixedly connected with protruding portion, and elastic buffer portion is located on the circumference of protruding portion rotation. The utility model is specially used with the cooperation of protruding portion and elastic buffer portion, solve the problem of unstable damping effect of handrail damping structure in prior art when in use.

Description

Technical Field

[0001] This utility model relates to the technical field of vehicle handrail structure, specifically to a buffer device, a car handrail, and a seat. Background Technology

[0002] To enhance driving comfort, many vehicles now feature armrests in the rear seats, along with armrest storage slots on the rear seat backs. When not in use, the armrest is rotated and stored in the slots. When needed, it is rotated to a horizontal position. The armrest provides elbow support for rear passengers and can also include cup holders and storage compartments for storing items. Existing armrest structures primarily consist of an armrest frame, a pivot, armrest components, and connecting hooks. The armrest components are mounted and fixed to the armrest frame, forming the aforementioned cup holders and storage compartments. The armrest frame is rotatably connected to the backrest frame via the pivot. In use, the armrest frame and its components rotate relative to the backrest frame via the pivot, allowing the entire armrest structure to be folded in or unfolded.

[0003] In existing handrail structures, to prevent strong impacts when the handrail is rotated from its receiving slot to a horizontal position, a buffer damping structure is incorporated into the handrail frame. This existing buffer damping structure mainly consists of a rotating shaft and disc, a passive rotating plate, an intermediate rotating plate, and a tension spring. The rotating shaft and disc are rotatably connected to the rotating shaft, and both the intermediate and passive rotating plates are rotatably connected to the handrail frame. The tension spring is fixedly connected between the passive rotating plate and the handrail frame. Insertion-rotation structures are provided between the intermediate rotating plate and both the rotating shaft and disc, allowing the rotating shaft and disc to rotate simultaneously when the intermediate rotating plate rotates. When the handrail is lowered by rotating the handrail structure, the handrail frame drives the intermediate rotating plate to rotate relative to the rotating shaft, causing the intermediate rotating plate to rotate. This rotation, in turn, drives the passive rotating plate, stretching the tension spring. The tension spring provides buffer damping for the entire handrail rotation, reducing the likelihood of significant impacts.

[0004] While the existing buffer structure can provide some cushioning protection during the lowering of the handrail, the cushioning effect mainly comes from the tension of the spring, and the damping effect is relatively limited. At the same time, with the increase of use, the spring will also weaken due to fatigue, resulting in poor cushioning effect of the handrail structure. It is necessary to improve the existing damping structure to enhance the stability of the damping effect when using the handrail. Utility Model Content

[0005] The present invention aims to provide a buffer device, an automotive armrest, and a seat to solve the problem of unstable damping effect of the armrest damping structure in the prior art during use.

[0006] To solve the above problems, the present invention adopts the following technical solution: a buffer device, including a handrail frame and a rotating shaft disk rotatably connected to the handrail frame, an elastic buffer part connected to the handrail frame, and a protrusion fixedly connected to the outer wall of the rotating shaft disk, the elastic buffer part being located on the circumference of the protrusion.

[0007] The principle and beneficial effects of this solution are as follows: In this application, an elastic buffer part is connected to the handrail frame, and a protrusion is fixedly connected to the outer wall of the rotating shaft disk. The elastic buffer part is located on the circumference of the rotating protrusion. When the handrail structure in the prior art needs to be lowered, by rotating the handrail frame and handrail components, the rotation of the intermediate rotating plate in the prior art will not only drive the passive rotating plate to rotate, causing the passive rotating plate to stretch the tension spring, and the tension spring to stretch and undergo elastic deformation, thus providing a damping buffer effect on the handrail structure; at the same time, the rotation of the intermediate rotating plate will also drive the rotating shaft disk to rotate. When the rotating shaft disk rotates, the protrusion rotates synchronously with the rotating shaft disk. During the rotation of the protrusion, it comes into contact with the elastic buffer part, and the elastic buffer part undergoes elastic deformation under force, thus providing a damping buffer effect on the rotation process of the handrail structure, improving the stability of the handrail structure during the lowering process, reducing the impact that the handrail structure may be subjected to during the lowering process, and the double damping buffer effect of the elastic buffer part and the tension spring in the prior art can ensure that the handrail structure is better protected during the lowering process for a long time.

[0008] Preferably, as an improvement, the elastic buffer part includes a fixed post and an elastic buffer sleeve, the fixed post being fixedly connected to the handrail frame, and the elastic buffer sleeve being connected to the fixed post.

[0009] In this design, the elastic buffer sleeve is connected to the fixed post, which serves to install and fix the elastic buffer sleeve. When the rotating shaft and turntable rotate, the protrusion on the rotating shaft and turntable contacts the elastic buffer sleeve and is buffered. The structure is simple and easy to install. Furthermore, when the elastic buffer sleeve is damaged, it can be easily replaced, ensuring that the damping and buffering effect of the entire structure is effective for a long time.

[0010] Preferably, as an improvement, the top end of the fixing post is connected to a limiting member, the outer wall of which protrudes beyond the outer wall of the fixing post.

[0011] In this solution, a limiting component is used to limit and fix the elastic buffer sleeve installed on the outer wall of the fixed column, so as to prevent the elastic buffer sleeve from slipping off the fixed column during use and to ensure the damping and buffering effect of the elastic buffer sleeve.

[0012] Preferably, as an improvement, the protrusion includes a pressing protrusion integrally formed on the side wall of the rotating shaft disk.

[0013] In this design, the abutting protrusion is integrally formed on the outer wall of the rotating shaft and turntable, which is easy to form and has a stable connection. It can stably cooperate with the elastic buffer part to achieve a damping and buffering effect.

[0014] Preferably, as an improvement, the number of the abutting protrusions is multiple, and the multiple abutting protrusions are arranged circumferentially along the outer wall of the rotating shaft disk.

[0015] In this design, multiple abutment protrusions are arranged at intervals along the outer circumference of the rotating disc. When the handrail structure is lowered, the elastic buffer rotates relative to the rotating disc, and the multiple abutment protrusions sequentially contact the elastic buffer to complete multiple damping buffering operations. This not only avoids the need for a large blocking size of the abutment when only one abutment is used, thus preventing the elastic buffer from undergoing large deformation due to each large force, but also provides auxiliary protection for the elastic buffer. At the same time, by setting multiple abutment protrusions, the rotating disc contacts the elastic buffer multiple times during rotation, resulting in multiple damping buffering operations and making the damping buffering process of the handrail structure more stable.

[0016] Preferably, as an improvement, the distances of the multiple abutment protruding beyond the side wall of the rotating shaft and turntable increase sequentially along the order in which the elastic buffer part contacts the abutment protrusion.

[0017] In this design, when the handrail structure is lowered, the size of the abutment protruding beyond the side wall of the rotating shaft gradually increases along the sequence of contact between the elastic buffer part and the abutment protrusion. When the elastic buffer part contacts the first abutment protrusion, the damping effect of the first abutment protrusion on the elastic buffer part is the weakest. The damping effect of the second abutment protrusion increases until the last abutment protrusion has the greatest damping effect. This gradually enhances the damping effect on the handrail structure during the lowering process, making the lowering process of the handrail structure more stable.

[0018] Preferably, as an improvement, there is a smooth transition between adjacent abutting protrusions.

[0019] In this design, the transition between adjacent abutment protrusions is smooth, allowing the two adjacent abutment protrusions to transition smoothly when they act as damping buffers. This avoids the damping buffering effects of adjacent abutment protrusions being independent of each other, resulting in obvious "shaking" and "foreign object feeling," and improves the smoothness and stability of the handrail structure during the lowering process.

[0020] Preferably, as an improvement, an intermediate rotating plate is connected to the rotating shaft turntable, and the rotating shaft turntable is located between the intermediate rotating plate and the elastic buffer part.

[0021] In this design, the rotating shaft and turntable are positioned between the intermediate rotating plate and the elastic buffer. When the intermediate rotating plate rotates and drives the rotating shaft and turntable to rotate, the elastic buffer provides a damping effect on the rotating shaft and turntable. The rotating shaft and turntable are subjected to force on both sides, making the force on the rotating shaft and turntable more uniform during use and the damping effect more stable.

[0022] A car armrest, including the aforementioned buffer device.

[0023] A seat, including either the aforementioned cushioning device or the aforementioned car armrest.

[0024] In this solution, a buffer device is installed on the car armrest and seat to provide a double damping buffer effect during the lowering process of the armrest structure, thereby improving the stability of the armrest structure during the lowering process. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of a buffer device in Embodiment 1 of this utility model.

[0026] Figure 2 for Figure 1 A cross-sectional view from a mid-top viewpoint.

[0027] Figure 3 This is a schematic diagram of a buffer device in Embodiment 2 of this utility model. Detailed Implementation

[0028] The following detailed description illustrates the specific implementation method: The reference numerals in the accompanying drawings include: 1. Handrail frame; 2. Rotating shaft; 3. Rotating shaft turntable; 301. Pressing protrusion; 4. Intermediate rotating plate; 401. Insertion tooth; 5. Support rod; 6. Passive rotating plate; 7. Tension spring; 8. Fixing column; 9. Elastic buffer sleeve; 10. Limiting cover.

[0029] Example 1 This embodiment is as shown in the attached figure. Figure 1 and Figure 2 As shown: A buffer device includes a handrail frame 1 and a rotating shaft 2 rotatably connected to the handrail frame 1 via a bushing. A rotating shaft disc 3 is fixed on the rotating shaft 2, so that the rotating shaft disc 3 and the handrail frame 1 are rotatably connected. At the same time, the handrail frame 1 is rotatably connected to an intermediate rotating plate 4 via a pin, and a passive rotating plate 6 is rotatably connected to the handrail frame 1 via a support rod 5. A tension spring 7 is fixedly connected between the passive rotating plate 6 and the handrail frame 1. The side walls of the rotating shaft disc 3 and the passive rotating plate 6 are provided with slots. The side wall of the intermediate rotating plate 4 is provided with a tooth 401 that mates with the slot. When the intermediate rotating plate 4 rotates relative to the handrail frame 1, the tooth 401 can simultaneously drive the rotating shaft disc 3 and the passive rotating plate 6 to rotate.

[0030] Combination Figure 1 and Figure 2 An elastic buffer part is connected to the armrest frame 1, and a protrusion is fixedly connected to the outer wall of the rotating shaft turntable 3. The elastic buffer part is located on the circumference where the protrusion rotates with the rotating shaft turntable 3. When the protrusion rotates to contact the elastic buffer part, the elastic buffer part undergoes elastic deformation and plays a damping buffering effect on the protrusion and the rotating shaft turntable 3. The rotating shaft turntable 3 is located between the intermediate rotating plate 4 and the elastic buffer part. Specifically, the elastic buffer part in this embodiment includes a fixed post 8 and an elastic buffer sleeve 9. The fixed post 8 is fixedly connected to the handrail frame 1 by welding or screw fastening. The elastic buffer sleeve 9 is sleeved on the outer wall of the fixed post 8. In order to make the elastic buffer sleeve 9 more stably sleeved on the outer wall of the fixed post 8, the cross-section of the fixed post 8 in this embodiment is arch-shaped. The elastic buffer sleeve 9 is adapted to the arch-shaped cross-section of the fixed post 8, and the arc segment of the elastic buffer sleeve 9 cooperates with the protrusion. The distance D between the arc segment of the elastic buffer sleeve 9 and the outer wall of the rotating shaft turntable 3 is less than or equal to 1 mm, preferably 0.8 mm. The thickness S of the elastic buffer sleeve 9 is greater than or equal to 1.5 mm, preferably 2 mm, so that the protrusion and the elastic buffer sleeve 9 can contact each other more smoothly and evenly.

[0031] like Figure 2 As shown, the protrusion in this embodiment includes a pressing protrusion 301 integrally formed on the side wall of the rotating shaft disk 3. The cross-section of the pressing protrusion 301 is partially fan-shaped, and there are multiple pressing protrusions 301 in this embodiment. The multiple pressing protrusions 301 are arranged circumferentially along the outer wall of the rotating shaft disk 3. The distance H of the pressing protrusion 301 protruding beyond the side wall of the rotating shaft disk 3 is greater than or equal to 1.5 mm, preferably 2 mm, and there is a smooth transition between adjacent pressing protrusions 301 to improve the smoothness when the elastic buffer sleeve 9 contacts the multiple pressing protrusions 301.

[0032] In practical application, the rotating shaft 2 is fixedly connected to the backrest frame of the seat in the prior art. When the armrest frame 1 is rotated to flatten the armrest structure, the rotating shaft 2 and the rotating shaft turntable 3 are in a fixed position. The intermediate rotating plate 4 rotates relative to the rotating shaft 2. The slot on the rotating shaft turntable 3 exerts a force on the corresponding insert 401 on the intermediate rotating plate 4, driving the intermediate rotating plate 4 to rotate. When the intermediate rotating plate 4 rotates, it drives the passive rotating plate 6 to rotate. When the passive rotating plate 6 rotates, it stretches the tension spring 7, causing the tension spring 7 to exert a force on the passive rotating plate 6. The handrail structure provides a damping and cushioning effect. At the same time, as the pivot disc 3 rotates relative to the handrail frame 1, the pivot disc 3 drives the pressing protrusion 301 to rotate synchronously. When the pressing protrusion 301 rotates to contact the elastic buffer sleeve 9, the elastic buffer sleeve 9 undergoes elastic deformation. The pressing protrusion 301 is thus subjected to elastic resistance, which dampens and cushions the rotation of the pivot disc 3. As a result, the handrail structure receives a double damping and cushioning effect during the lowering process, making the handrail structure more stable and more comfortable to use.

[0033] A car handrail includes the aforementioned buffer device; a seat includes the aforementioned buffer device or the aforementioned car handrail. By setting a damping device on the handrail or seat, the handrail structure receives a more stable damping and buffering effect, thus providing stable buffering protection for the handrail structure.

[0034] Example 2 The difference between Example 2 and Example 1 is as follows: Figure 3 As shown, in this embodiment, a limiting component is connected to the top of the fixed column 8 by means of threaded connection. The limiting component is a disc-shaped limiting cover 10. The outer wall of the limiting cover 10 protrudes beyond the outer wall of the fixed column 8. After the elastic buffer sleeve 9 is fitted onto the outer wall of the fixed column 8, the limiting cover 10 is fixed to the top of the fixed column 8. The limiting cover 10 plays a limiting and fixing role for the elastic buffer sleeve 9, so that the elastic buffer sleeve 9 can be more stably connected to the fixed column 8 and play a stable damping buffering effect.

[0035] Example 3 The difference between Embodiment 3 and Embodiment 1 is that in Embodiment 1, when multiple abutment protrusions 301 are set, the distances of the multiple abutment protrusions 301 protruding from the side wall of the rotating shaft turntable 3 are equal. In this embodiment, during the lowering of the handrail structure, along the order in which the elastic buffer sleeve 9 contacts the abutment protrusions 301, the distances of the multiple abutment protrusions 301 protruding from the side wall of the rotating shaft turntable 3 increase sequentially. This means that when the handrail structure is lowered, the elastic buffer sleeve 9 first contacts the abutment protrusion 301 with the smallest size protruding from the side wall of the rotating shaft turntable 3, resulting in the weakest damping effect. Subsequently, as the distance of the abutment protrusions 301 protruding increases, the damping effect gradually increases, so that the damping effect on the handrail structure during the lowering process gradually increases, thereby improving the stability of the handrail structure during the lowering process.

[0036] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A buffer device, comprising a handrail frame and a rotating shaft disk rotatably connected to the handrail frame, characterized in that: An elastic buffer part is connected to the armrest frame, and a protrusion is fixedly connected to the outer wall of the rotating shaft disk. The elastic buffer part is located on the circumference of the protrusion.

2. The buffer device according to claim 1, characterized in that: The elastic buffer part includes a fixed column and an elastic buffer sleeve. The fixed column is fixedly connected to the handrail frame, and the elastic buffer sleeve is connected to the fixed column.

3. A buffer device according to claim 2, characterized in that: The top of the fixed column is connected to a limiting member, and the outer wall of the limiting member protrudes beyond the outer wall of the fixed column.

4. A buffer device according to claim 2, characterized in that: The protrusion includes a pressing protrusion integrally formed on the side wall of the rotating shaft and turntable.

5. A buffer device according to claim 4, characterized in that: The number of abutting protrusions is multiple, and the multiple abutting protrusions are arranged at intervals along the outer wall of the rotating shaft turntable.

6. A buffer device according to claim 5, characterized in that: Following the sequence of contact between the elastic buffer and the abutment protrusions, the distances of the multiple abutment protrusions beyond the side wall of the rotating shaft and turntable increase sequentially.

7. A buffer device according to claim 5, characterized in that: The transition between adjacent abutting protrusions is smooth.

8. A buffer device according to claim 1, characterized in that: An intermediate rotating plate is connected to the rotating shaft turntable, and the rotating shaft turntable is located between the intermediate rotating plate and the elastic buffer part.

9. A car armrest, characterized in that: Includes a buffer device as described in any one of claims 1-8.

10. A type of seat, characterized in that: This includes a buffer device as described in any one of claims 1-8 or a car handrail as described in claim 9.

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