A folding mechanism for a car seat table

Abstract

The utility model discloses a kind of folding mechanism of car seat small table board, effectively reduce the shaking condition when small table board is used, including the fixed plate connected with seat, the rear side of the fixed plate is rotatably connected with first connecting rod, the lower side of first connecting rod is equipped with the second connecting rod rotatably connected with fixed plate, the side of first connecting rod and second connecting rod away from fixed plate is rotatably connected with small table board, the middle part of the lower side of first connecting rod is equipped with a buffer pad, the utility model novel structure, ingenious, easy and simple to operate, effectively reduce cost, reduce the probability of noise generation simultaneously, small table board can be opened automatically, it is convenient to install mechanism, slow down the speed of small table board opening process, reduce the risk of bumping to passenger, realize better folding effect.

Description

Technical Field

[0001] This utility model belongs to the technical field of car seat tray tables, and relates to a folding mechanism for car seat tray tables. Background Technology

[0002] Typically, the armrests of rear seats in cars only serve as handrails. However, due to work and life needs, people sitting in the back of the car often need to handle urgent business or enjoy food or watch TV during their leisure time. Therefore, it is necessary to add foldable tables to the front seats for the convenience of rear passengers.

[0003] Existing folding tables typically use a latch and a locking groove for locking. However, to facilitate closing the folding table, there will inevitably be play between the latch and the locking groove. After the folding table is closed, as the vehicle moves, the folding table will cause the locking groove to wobble back and forth relative to the latch, which will generate noise and affect the quietness of the car interior. In addition, the wobbling will also affect the service life of the folding table and its mounting structure. Therefore, a folding mechanism for car seat folding tables that can reduce the wobbling of the folding table is needed to solve the above problems. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a folding mechanism for a car seat tray table, which effectively solves the problems in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A folding mechanism for a car seat tray table includes a fixed plate connected to the seat. The fixed plate is characterized in that: a first connecting rod is rotatably connected to the rear side of the fixed plate, a second connecting rod is rotatably connected to the fixed plate on the lower side of the first connecting rod, the sides of the first and second connecting rods away from the fixed plate are rotatably connected to the tray table, and a buffer pad is provided in the middle of the lower side of the first connecting rod.

[0007] Preferably, the fixing plate includes a support plate and a connecting plate, the support plate and the connecting plate are arranged perpendicularly, a first rotating shaft is fixedly connected to the side wall of the connecting plate, a first connecting rod is rotatably connected to the first rotating shaft, a second rotating shaft is provided on the lower side of the first rotating shaft and fixedly connected to the connecting plate, and the second connecting rod is rotatably connected to the second rotating shaft.

[0008] Preferably, the connecting plate has a first slot on the side near the small table, a coil spring is fitted on the outer side of the first rotating shaft, and a first connecting hole is provided on the side of the first connecting rod near the first rotating shaft. One end of the coil spring is engaged with the first slot, and the other end of the coil spring is engaged with the first connecting hole.

[0009] Preferably, the support plate and the connecting plate have a reinforcing groove in the middle, and a connecting block is fixedly connected to the upper part of the support plate.

[0010] Preferably, a damper is fixedly connected to the side of the first connecting rod away from the fixed plate, and the rotating end of the damper is fixedly connected to the small table.

[0011] Preferably, the first connecting rod includes a descending part, a first horizontal part, and a descending part in sequence from back to front. The rear side of the descending part is rotatably connected to the fixed plate, the buffer pad is fixedly connected to the rear part of the lower side of the first horizontal plate, and the front side of the descending part is rotatably connected to the small table.

[0012] The second link includes, from back to front, a first rising part, a second rising part, and a second horizontal part. The rear side of the first rising part is rotatably connected to the fixed plate, and the front side of the second horizontal part is rotatably connected to the small table.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This utility model has a buffer pad. The buffer pad can buffer and limit the contact position of the first link and the second link when the small table is in the closed and open states. This can reduce the noise generated by the collision between the first link and the second link, which are made of metal, and also increase the service life of the first link and the second link. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the small table of this utility model in the closed state.

[0017] Figure 3 This is a schematic diagram of the structure of the first link and the second link in this utility model.

[0018] Figure 4 This is an exploded structural diagram of the fixing plate, the first connecting rod, and the second connecting rod in this utility model.

[0019] In the diagram: 1. Fixed plate; 2. First connecting rod; 3. Second connecting rod; 4. Buffer pad; 5. Support plate; 6. Connecting plate; 7. First rotating shaft; 8. Second rotating shaft; 9. First slot; 10. Coil spring; 11. First connecting hole; 12. Reinforcing groove; 13. Connecting block; 14. Damper; 15. Descending part; 16. First horizontal part; 17. Descending part; 18. First ascending part; 19. Second ascending part; 20. Second horizontal part; 21. Small table; 22. Locking groove. Detailed Implementation

[0020] 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.

[0021] The following is in conjunction with the appendix Figures 1 to 4 The specific embodiments of this utility model will be described in further detail.

[0022] Depend on Figures 1 to 4 As shown, this utility model includes a fixed plate 1 connected to the seat. In order to reduce the shaking of the small table 21 during use, a first connecting rod 2 is rotatably connected to the rear side of the fixed plate 1. A second connecting rod 3 is rotatably connected to the fixed plate 1 on the lower side of the first connecting rod 2. The sides of the first connecting rod 2 and the second connecting rod 3 away from the fixed plate 1 are rotatably connected to the small table 21. A buffer pad 4 is provided in the middle of the lower side of the first connecting rod 2.

[0023] It should be noted that the buffer pad 4 is made of rubber, which is elastic and can undergo a certain degree of elastic deformation. Its upper side is fixedly connected to the first connecting rod 2 by adhesive. When the small table 21 is in the open state, the upper and lower sides of the buffer pad 4 abut against the first connecting rod 2 and the second connecting rod 3 respectively, which can buffer the contact points of the first connecting rod 2 and the second connecting rod 3, reduce collision noise, and increase service life. When the small table 21 is in the closed state, a lock is provided on the seat that cooperates with the fixed plate 1. A lock groove 22 that cooperates with the lock tongue is opened on the side of the small table 21 away from the fixed plate 1. When the small table 21 is closed, there is play between the latch and the latch 22 to facilitate closing the small table 21. At this time, under the action of the rubber pad, the two sides of the rubber pad are in contact with the first connecting rod 2 and the second connecting rod 3 respectively, and the rubber pad is elastically deformed under the pressure. Under the action of the elastic deformation of the rubber pad, the latch 22 on the small table 21 can always be tightly engaged with the latch. This way, the play between the latch and the latch 22 can be retained, making it easy to close the small table 21, while eliminating the noise caused by the shaking or vibration caused by the play between the latch and the latch 22.

[0024] In use, the buffer pad 4 can buffer and limit the contact position of the first link 2 and the second link 3 when the small table 21 is in the closed and open states. This can reduce the probability of noise generated by the collision between the first link 2 and the second link 3, which are made of metal, and also increase the service life of the first link 2 and the second link 3.

[0025] Furthermore, by Figures 1 to 4 As shown, in order to facilitate the installation of the mechanism, the fixing plate 1 includes a support plate 5 and a connecting plate 6. The support plate 5 and the connecting plate 6 are set perpendicularly. A first rotating shaft 7 is fixedly connected to the side wall of the connecting plate 6. The first connecting rod 2 is rotatably connected to the first rotating shaft 7. A second rotating shaft 8 is fixedly connected to the connecting plate 6 on the lower side of the first rotating shaft 7. The second connecting rod 3 is rotatably connected to the second rotating shaft 8.

[0026] A reinforcing groove 12 is provided in the middle of the support plate 5 and the connecting plate 6, and a connecting block 13 is fixedly connected to the upper part of the support plate 5.

[0027] By setting the reinforcing groove 12, the bending strength between the support plate 5 and the connecting plate 6 can be increased. The support plate 5 is also provided with fixing holes for fixing the support plate 5 to the seat. The support plate 5 can be fixed by bolts passing through the corresponding fixing holes and cooperating with the seat. The connecting block 13 is T-shaped and matches the pre-drilled holes on the seat, which can facilitate the positioning and installation of the support plate 5.

[0028] In use, the vertically arranged support plate 5 and connecting plate 6 can increase the overall strength of the fixing plate 1, facilitate the connection plate 6 to cooperate with the first link 2 and the second link 3, and also facilitate the cooperation between the fixing plate 1 and the seat.

[0029] Furthermore, by Figures 1 to 4 As shown, in order to enable the small table 21 to open automatically, the connecting plate 6 has a first slot 9 on the side near the small table 21, a coil spring 10 is fitted on the outside of the first rotating shaft 7, and a first connecting hole 11 is opened on the side of the first connecting rod 2 near the first rotating shaft 7. One end of the coil spring 10 is engaged with the first slot 9, and the other end of the coil spring 10 is engaged with the first connecting hole 11.

[0030] In use, by setting the first slot 9 and the first connecting hole 11, the coil spring 10 can be limited, thereby reducing the risk of the coil spring 10 detaching from the connecting plate 6 or the first connecting rod 2 and failing during use.

[0031] It should be noted that under the action of the coil spring 10, the first connecting rod 2 is always subjected to a force that drives the small table 21 to rotate and open. After the locking tongue and the locking groove 22 are disengaged, the first connecting rod 2 can be driven to rotate under the action of the coil spring 10, thereby driving the small table 21 to open.

[0032] Furthermore, by Figures 1 to 4As shown, in order to make the opening speed of the small table 21 more uniform, a damper 14 is fixedly connected to the side of the first connecting rod 2 away from the fixed plate 1. The damper 14 is a Southco-ST-10E model, which is existing technology and will not be described in detail here. The rotating end of the damper 14 is fixedly connected to the small table 21.

[0033] In use, by setting the damper 14, the rotation speed between the small table 21 and the first link 2 can be limited during the opening of the small table 21, so that the small table 21 can open slowly, while avoiding the small table 21 from rotating too much at one moment and causing bumps to passengers.

[0034] Furthermore, by Figures 1 to 4 As shown, in order to achieve a better folding effect, the first link 2 includes a descending part, a first horizontal part 16 and a descending part from back to front. The rear side of the descending part is rotatably connected to the fixed plate 1, the buffer pad 4 is fixedly connected to the rear part of the lower side of the first horizontal plate, and the front side of the descending part is rotatably connected to the small table 21.

[0035] The second link 3 includes, from back to front, a first rising part 18, a second rising part 19 and a second horizontal part 20. The rear side of the first rising part 18 is rotatably connected to the fixed plate 1, and the front side of the second horizontal part 20 is rotatably connected to the small table 21.

[0036] When the small table 21 is in the folded state, the side of the buffer pad 4 near the second connecting rod 3 abuts against the first rising part 18. When the small table 21 is in the open state, the side of the buffer pad 4 near the second connecting rod 3 abuts against the second horizontal part 20. When the small table 21 is in the open state, the first horizontal part 16 and the second horizontal part 20 are parallel to the small table 21, so that they can be stored in the clearance groove opened on the rear side of the small table 21, making the upper side of the small table 21 a flat plane.

[0037] In use, the connecting plate 6, the first link 2, the second link 3, and the small table 21 together form a four-bar linkage mechanism, which allows the small table 21 to switch between a vertically folded state and a horizontally open state. By setting the first horizontal part 16 and fixing the buffer pad 4 to the lower side of the first horizontal part 16, the same buffer pad 4 can be used to buffer and limit the small table 21 in both closed and open states, reducing the cost of use and the probability of noise generation.

[0038] In use, this invention firstly fixes the entire device to the rear side of the car seat via the fixing plate 1. The connecting plate 6, the first connecting rod 2, the second connecting rod 3, and the small table 21 together form a four-bar linkage mechanism, enabling the small table 21 to switch between a vertically folded state and a horizontally open state. When the small table 21 is in the open state, the upper and lower sides of the buffer pad 4 abut against the first connecting rod 2 and the second connecting rod 3 respectively, buffering the contact points of the first connecting rod 2 and the second connecting rod 3, reducing collision noise, and increasing service life. When the small table 21 is in the closed state, a lock is provided on the seat that cooperates with the fixing plate 1, and the small table 21 is moved away from the fixing plate 1. A locking groove 22 is provided on one side to cooperate with the locking tongue. When the locking tongue and the locking groove 22 cooperate to close the small table 21, there is play between the locking tongue and the locking groove 22 in order to facilitate closing the small table 21. At this time, under the action of the rubber pad, the two sides of the rubber pad are in contact with the first connecting rod 2 and the second connecting rod 3 respectively, and the rubber pad is subjected to compressive force and undergoes elastic deformation. Under the action of the elastic deformation of the rubber pad, the locking groove 22 on the small table 21 can always be tightly engaged with the locking tongue. This can maintain the play between the locking tongue and the locking groove 22, making it convenient to close the small table 21, while eliminating the noise caused by the shaking or vibration caused by the play between the locking tongue and the locking groove 22.

[0039] This utility model has a novel structure, ingenious design, and simple and convenient operation. Through this design, the shaking of the small table 21 during use is effectively reduced, the small table 21 can be opened automatically, the mechanism is easy to install, the opening speed of the small table 21 is slowed down, the risk of bumping into passengers is reduced, a better folding effect is achieved, the cost is reduced, and the probability of noise generation is also reduced.

[0040] Although the present invention 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 the present invention should be included within the protection scope of the present invention.

Claims

1. A folding mechanism for a car seat table, comprising a fixed plate connected to a seat, characterized in that: The rear side of the fixed plate is rotatably connected to a first connecting rod, and the lower side of the first connecting rod is provided with a second connecting rod rotatably connected to the fixed plate. The side of the first connecting rod and the second connecting rod away from the fixed plate are both rotatably connected to the small table. A buffer pad is provided in the middle of the lower side of the first connecting rod. The fixing plate includes a support plate and a connecting plate. The support plate and the connecting plate are arranged perpendicularly. A first rotating shaft is fixedly connected to the side wall of the connecting plate. A first connecting rod is rotatably connected to the first rotating shaft. A second rotating shaft is provided on the lower side of the first rotating shaft and is fixedly connected to the connecting plate. The second connecting rod is rotatably connected to the second rotating shaft.

2. The folding mechanism of claim 1, wherein: The connecting plate has a first slot on the side near the small table, a coil spring is fitted on the outside of the first rotating shaft, and a first connecting hole is provided on the side of the first connecting rod near the first rotating shaft. One end of the coil spring is engaged with the first slot, and the other end of the coil spring is engaged with the first connecting hole.

3. The folding mechanism of claim 1, wherein: The support plate and the connecting plate have a reinforcing groove in the middle, and a connecting block is fixedly connected to the upper part of the support plate.

4. The folding mechanism of claim 1, wherein: A damper is fixedly connected to the side of the first connecting rod away from the fixed plate, and the rotating end of the damper is fixedly connected to the small table.

5. The folding mechanism for a car seat tray table according to claim 1, characterized in that: The first connecting rod includes a descending part, a first horizontal part, and a descending part from back to front. The rear side of the descending part is rotatably connected to the fixed plate. The buffer pad is fixedly connected to the rear part below the first horizontal part. The front side of the descending part is rotatably connected to the small table. The second link includes, from back to front, a first rising part, a second rising part, and a second horizontal part. The rear side of the first rising part is rotatably connected to the fixed plate, and the front side of the second horizontal part is rotatably connected to the small table.

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