Automobile seat with self-adaptive armrest
By employing a combination of moving and fixed rails and a damping mechanism in the car seat, the problem of the armrest's posture change during seat back adjustment is solved, thus improving the passenger's user experience.
Patent Information
- Application Number
- CN202520008622.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-02
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2035-01-02
AI Technical Summary
The existing car seat armrests adjust along with the seat back when they are open, resulting in a poor user experience for passengers.
The combination of moving and fixed rails allows the handrail to maintain its posture when open through sliding adjustment and fixed rail rotation adjustment. Combined with a damping mechanism to limit swaying, this ensures that the angle between the handrail and the horizontal plane remains constant.
This improves the passenger experience and ensures that the armrests maintain a stable posture during seat back adjustment, without affecting passenger comfort.
Smart Images
Figure CN223631420U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of automobile seat, especially an automobile seat with self-adaptive armrest. BACKGROUND
[0002] The armrest is a functional accessory, which is usually arranged on the side of the seat to support the hands of the passenger and improve the comfort of the passenger. In order to make the seating space flexible and variable, some armrests are installed on the side of the seat in a folding manner, such as an armrest being rotatably installed on the seat back through a rotating shaft, so that the armrest can be rotated to an open state when in use and rotated to a folding state when not in use. SUMMARY
[0003] The utility model discloses a kind of automobile seats with self-adaptive armrests, to overcome the defects of prior art, solve the problem that existing armrests are adjusted together with seat back in open state and then lead to poor experience.
[0004] The technical scheme for realizing the above-mentioned purpose is as follows:
[0005] The utility model provides a kind of automobile seat with self-adaptive armrest, comprising:
[0006] An installation base is provided.
[0007] A seat back assembly is rotatably installed on the installation base.
[0008] A support plate is connected to the seat back assembly.
[0009] An armrest is rotatably connected to the support plate, which can be rotated to an open state or a folding state.
[0010] A fixed rail is rotatably installed on one end of the installation base.
[0011] A movable rail is slidably arranged on the fixed rail, and the movable rail is connected to the armrest.
[0012] The utility model further improves the automobile seat with self-adaptive armrest, wherein a pin shaft is arranged on the armrest, and the pin shaft is rotatably connected to the movable rail.
[0013] The further improvement of the automobile seat with the self-adapting handrail lies in that the end of the fixed rail is provided with a blocking piece.
[0014] The further improvement of the automobile seat with the self-adapting handrail lies in that when the handrail is in the open state, the fixed rail rotates to the inclined state arranged upwardly, and the movable rail slides to the top end of the fixed rail.
[0015] The further improvement of the automobile seat with the self-adapting handrail lies in that the fixed rail is formed with a rail groove.
[0016] The movable rail is arranged in the rail groove, and a ball is arranged between the movable rail and the groove wall of the rail groove.
[0017] The further improvement of the automobile seat with the self-adapting handrail lies in that the fixed rail is formed with a rail groove, and the groove wall of the rail groove is formed with an anti-falling groove.
[0018] The movable rail is arranged in the rail groove, and an anti-falling guide rail is arranged on the side of the movable rail and inserted into the anti-falling groove.
[0019] The further improvement of the automobile seat with the self-adapting handrail lies in that the fixed rail is formed with a rail groove, and the size of the groove opening of the rail groove is smaller than the size of the groove bottom.
[0020] The movable rail is arranged in the rail groove, and the shape of the movable rail is matched with the shape of the rail groove.
[0021] The further improvement of the automobile seat with the self-adapting handrail lies in that the damping mechanism is arranged on the support plate and corresponds to the handrail.
[0022] The damping limiting shaft is arranged on the damping mechanism and is limited by the damping mechanism to limit the swing of the handrail.
[0023] The further improvement of the automobile seat with the self-adapting handrail lies in that the damping mechanism is provided with a stop point at the end of the moving path of the damping limiting shaft to limit the damping limiting shaft.
[0024] The further improvement of the automobile seat with the self-adapting handrail lies in that the damping mechanism is formed with a damping groove.
[0025] The damping limiting shaft is slidably arranged in the damping groove.
[0026] When the handrail is in the open state or the folding state, the damping limiting shaft slides to the position close to the corresponding end of the damping slot, and a set gap is left between the damping limiting shaft and the corresponding end of the damping slot.
[0027] The automobile seat with the self-adapting handrail has the following beneficial effects:
[0028] The utility model discloses a movable rail and fixed rail are set up, utilize movable rail along fixed rail and slide adjustment and fixed rail can rotate around the rotary joint and rotate adjustment, make the handrail in the open state, can keep the attitude unchanged under the influence of backrest assembly rotation adjustment, namely the included angle between the handrail open state and horizontal plane keeps unchanged in the process of backrest assembly rotation adjustment, thereby improved the use experience of passenger. BRIEF DESCRIPTION OF DRAWINGS
[0029] Figure 1 It is the three-dimensional structure schematic diagram of the utility model discloses a car seat with self-adapting handrail.
[0030] Figure 2 It is the explosion decomposition structure schematic diagram of the utility model discloses a car seat with self-adapting handrail handrail connecting place.
[0031] Figure 3 It is the structure schematic diagram of the utility model discloses a car seat with self-adapting handrail and is in the folding state.
[0032] Figure 4 It is the structure schematic diagram of the utility model discloses a car seat with self-adapting handrail in the opening process.
[0033] Figure 5 It is the structure schematic diagram of the utility model discloses a car seat with self-adapting handrail and is in the open state.
[0034] Figure 6 It is the structure schematic diagram of the utility model discloses a car seat with self-adapting handrail and is in the open state and backrest assembly rotates and adjusts forward.
[0035] Figure 7 It is the connection structure schematic diagram of the utility model discloses a car seat with self-adapting handrail and fixed rail and installation base.
[0036] Figure 8 It is the assembly sectional view of the utility model discloses a car seat with self-adapting handrail and movable rail and pin shaft.
[0037] Figure 9 It is the structure schematic diagram of the utility model discloses a car seat with self-adapting handrail and movable rail and fixed rail's first embodiment.
[0038] Figure 10The utility model discloses a structure schematic drawing of the second embodiment of movable rail and fixed rail in the automobile seat with adaptive handrails.
[0039] Figure 11 The utility model discloses a structure schematic drawing of the third embodiment of movable rail and fixed rail in the automobile seat with adaptive handrails.
[0040] Figures 12 to 14 The utility model discloses a structure schematic drawing of the third embodiment of movable rail and fixed rail in the automobile seat with adaptive handrails.
[0041] Figure 15 For Figure 12 The local amplification schematic drawing of the damping mechanism.
[0042] Figure 16 For Figure 13 The local amplification schematic drawing of the damping mechanism.
[0043] Figure 17 For Figure 14 The local amplification schematic drawing of the damping mechanism.
[0044] Figure 18 The utility model discloses a structure schematic drawing of the third embodiment of movable rail and fixed rail in the automobile seat with adaptive handrails.
[0045] Figure 19 For Figure 18 The local amplification schematic drawing of the damping mechanism.
[0046] Figures 20 to 22 The utility model discloses a structure schematic drawing of the third embodiment of movable rail and fixed rail in the automobile seat with adaptive handrails.
[0047] Figure 23 For Figure 20 The local amplification schematic drawing of the fixed rail.
[0048] Figure 24 For Figure 21 The local amplification schematic drawing of the fixed rail.
[0049] Figure 25 For Figure 22 The local amplification schematic drawing of the fixed rail.
[0050] Mark explanation:
[0051] 10 - installation base;
[0052] 2 - rear seat;21 - backrest framework;22 - backrest pivot;23 - support plate;
[0053] 3 - armrest; 31 - armrest pivot; 32 - pin; 33 - damping stop shaft;
[0054] 41 - fixed rail; 411 - anti-escape groove; 42 - movable rail; 421 - anti-escape guide rail; 43 - connecting piece; 44 - fixed rail pivot; 45 - blocking piece; 46 - ball bearing;
[0055] 5 - damping mechanism; 51 - stop point; DETAILED DESCRIPTION
[0056] The utility model will be further described in connection with the drawings and specific embodiments.
[0057] Referring to Figure 1 , the utility model provides a car seat with self-adaptive armrest for realizing that the armrest keeps the same angle with the horizontal plane during the rotation adjustment of the backrest assembly around a point when the armrest is in the fully opened state. The car seat with self-adaptive armrest of the utility model will be described in connection with the drawings.
[0058] Referring to Figure 1 , a three-dimensional structure schematic diagram of the car seat with self-adaptive armrest of the utility model is shown. Referring to Figure 2 , an explosion decomposition structure schematic diagram of the armrest connection of the car seat with self-adaptive armrest of the utility model is shown. The structure of the car seat with self-adaptive armrest of the utility model will be described in connection with Figure 1 and Figure 2 .
[0059] As shown in Figure 1 and Figure 2 , the car seat with self-adaptive armrest of the utility model comprises a mounting base 10, a backrest assembly, a support plate 23, an armrest 3, a fixed rail 41 and a movable rail 42; wherein the backrest assembly is rotatably mounted on the mounting base 10, the backrest assembly can be rotationally adjusted relative to the rotation connection, including forward rotation and backward rotation, realizing the flexible adjustment function of the backrest of the car seat. The support plate 23 is connected to the backrest assembly, and the armrest 3 is rotatably connected to the support plate 23, the armrest 3 can be rotated to the opened state, and also can be rotated to the folded state. One end of the fixed rail 41 is rotatably mounted on the mounting base 10, the other end of the fixed rail 41 is a free end, the free end can be rotationally adjusted around the rotatable connection; the movable rail 42 is slidably arranged on the fixed rail 41, the movable rail 42 can be slidably adjusted along the fixed rail 41, and the movable rail 42 is connected with the armrest 3, in combination with Figure 5 and Figure 6 , through the slidable adjustment of the movable rail 42 along the fixed rail 41 and the rotation adjustment of the fixed rail 41, the armrest 3 can keep the same posture in the opened state without being affected by the rotation adjustment of the backrest assembly.
[0060] As shown in Figures 3 to 6 the process of folding and unfolding, the armrest 3 rotates around its rotating joint, the joint between the armrest 3 and the moving rail 42 drives the moving rail 42 to move along the fixed rail 41, and also drives the fixed rail 41 to rotate around its rotating joint until the moving rail 42 is limited by the end of the fixed rail 41, at this time, the armrest 3 is unfolded to the position and cannot be further unfolded. During the rotating adjustment of the backrest assembly, the mounting base 10 is fixed with the vehicle body, the position of the mounting base 10 does not change, the positions of the rotating joints of the backrest assembly and the fixed rail 41 do not change, the backrest assembly rotates around the rotating joint of the backrest assembly with the support plate 23, and the rotating joint of the armrest 3 changes with the support plate 23. In this process, the rotating joints A and B of the backrest assembly and the fixed rail 41, the joint C between the armrest 3 and the moving rail 42, and the rotating joint D of the armrest 3 form a parallelogram, the positions and lengths of the line segments AB do not change, the point D rotates around the point A, so the length AD is always unchanged, and in the case that there is no external force to fold the armrest 3, the length BC cannot be shortened, the moving rail 42 is limited by the end of the fixed rail 41, and the length BC cannot be shortened, so the length BC is unchanged during the adjustment of the backrest, and thus the length of the line segment CD formed by the points C and D and the angle with the horizontal plane are unchanged, so the angle between the armrest 3 and the horizontal plane is unchanged.
[0061] As shown in Figure 1 the utility model discloses a car seat with self -adaptability armrest is the car rear -row seat 2, and the armrest 3 is arranged at the middle part of the rear -row seat 2.
[0062] Further, as shown in Figure 2 and Figure 3 the backrest assembly includes a backrest framework 21, and the bottom of the backrest framework 21 is rotatably connected to a mounting base 10 through a backrest rotating shaft 22. The mounting base 10 is preferably a connecting plate and can be fixedly connected to the vehicle body or the seat cushion assembly. A support plate 23 is fixedly connected to the backrest framework 21, and the connection can be achieved by welding or using fasteners such as bolts.
[0063] Further, the support plate 23 includes a horizontal support portion and a vertical mounting portion connected to the horizontal support portion. The horizontal support portion is fixedly connected to the backrest framework 21, and the bottom of the vertical mounting portion is rotatably connected to the armrest 3. Preferably, the armrest 3 is rotatably connected to the bottom of the vertical mounting portion through an armrest rotating shaft 31.
[0064] Further, one end of the moving rail 41 is rotatably connected to the mounting base 10 through a moving rail rotating shaft 44.
[0065] In one embodiment of the utility model, as shown in Figure 2 and Figure 3 As shown, the handrail 3 is provided with a pin shaft 32, which is rotatably connected with the movable rail 42.
[0066] As shown in Figure 7 and Figure 8 A connecting piece 43 is provided on the movable rail 42, which is connected with the end of the pin shaft 32. The connecting piece 43 allows the connection between the pin shaft 32 and the movable rail 42 to rotate relatively. The connecting piece 43 is preferably a bolt.
[0067] Further, the end of the fixed rail 41 is provided with a blocking piece 45, which blocks the movable rail 42 to prevent it from being pulled out of the fixed rail 41. The blocking piece 45 is preferably a blocking pin, which is fixed at the end of the fixed rail 41.
[0068] As shown in Figure 4 and Figure 5 When the handrail 3 is in the open state, the fixed rail 41 is rotated to an upwardly arranged inclined state, and the movable rail 42 is slid to the top end of the fixed rail 41. The movable rail 42 is kept in position by the blocking of the blocking piece 45 at the top end.
[0069] In one embodiment of the utility model, as shown in Figure 9 In one embodiment, the fixed rail 41 is formed with a rail groove, and the movable rail 42 is placed in the rail groove, and a ball 46 is arranged between the movable rail 42 and the groove wall of the rail groove. The arrangement of the ball 46 allows the movable rail 42 to slide along the rail groove of the fixed rail 41, and prevents the movable rail 42 from being pulled out of the groove opening of the rail groove of the fixed rail 41. In this embodiment, the fixed rail 41 and the movable rail 42 are made of metal.
[0070] In another embodiment, as shown in Figure 10 The fixed rail 41 is formed with a rail groove, and the groove wall of the rail groove is formed with an anti-extraction groove 411. The movable rail 42 is placed in the rail groove, and the side of the movable rail 42 is provided with an anti-extraction guide rail 421 corresponding to the anti-extraction groove, which is inserted into the anti-extraction groove 411.
[0071] In yet another embodiment, as shown in Figure 11 The fixed rail 41 is formed with a rail groove, and the size of the groove opening of the rail groove is smaller than that of the groove bottom. The movable rail 42 is placed in the rail groove, and the shape of the movable rail 42 is adapted to the shape of the rail groove. Preferably, the shape of the rail groove and the movable rail 42 is trapezoidal.
[0072] In one embodiment of the utility model, as shown in Figures 12 to 17As shown, a damping mechanism 5 is provided on the support plate 23 corresponding to the handrail 3, and a damping limiting shaft 33 is provided on the handrail 3. The damping limiting shaft 33 is slidably provided on the damping mechanism 5. The damping mechanism 5 limits the damping limiting shaft 33 to restrict the swing of the handrail 3.
[0073] When the armrest 3 is in the open position, the armrest 3 can be rotated upwards without restriction. When the vehicle body is bumpy, the armrest 3 is prone to swinging significantly with the bumps. This utility model can limit the swinging of the armrest 3 and improve the structural stability of the armrest 3 by setting the damping mechanism 5 and the damping limit shaft 3 in cooperation.
[0074] Furthermore, the damping mechanism 5 is provided with a stop point 51 at the end of the movement path of the damping limiting shaft 33. When the handrail is in the open or folded state, the damping limiting shaft 33 passes over the corresponding stop point 51, and the stop point 51 plays a limiting role on the damping limiting shaft 33.
[0075] Furthermore, a damping groove is formed on the damping mechanism 5; the damping limiting shaft 33 slides within the damping groove; when the armrest is in the open or folded state, the damping limiting shaft 33 slides to near the end corresponding to the damping groove, leaving a set gap between the damping limiting shaft 33 and the end corresponding to the damping groove. This set gap is used to achieve angle adjustment of the backrest frame, providing a margin for angle adjustment of the backrest frame. A stop point 51 is formed on the groove wall of the damping groove, and the stop point 51 is formed by protruding inward from the groove wall portion. Specifically, the armrest in Figure 17 In the horizontal position shown, the damping limit shaft 33 passes the corresponding stop point 51 and leaves a set gap between itself and the end corresponding to the damping groove. This set gap allows the armrest to remain horizontal while the backrest frame continues to adjust backward. The size of the set gap can be defined according to the angle of the backrest frame's backward adjustment. The purpose of setting the set gap at the other end of the damping groove is to ensure that the armrest can smoothly return to the folded position, so as to avoid the damping limit shaft hitting the end corresponding to the damping groove before the armrest returns to the folded position due to process tolerances.
[0076] Preferably, the blocking point 51 has a certain amount of plastic deformation.
[0077] During the process of rotating the armrest 3 from the folded state to the open state, the damping limiting shaft 33 connected to the armrest 3 slides in the damping groove of the damping mechanism 5. The damping limiting shaft 33 passes through the corresponding stop point 51, which restricts the reverse movement of the damping limiting shaft 33. This prevents the armrest 3 from swinging significantly with the bumps of the vehicle body when it is in the open state. When it is necessary to fold the armrest 3, simply rotate the armrest 3 upwards to overcome the obstruction of the stop point 51, causing the stop point 51 to undergo plastic deformation. The damping limiting shaft 33 can then pass the stop point 51 to achieve the folding of the armrest 3.
[0078] The damping mechanism 5 is preferably a spring structure and has a certain elasticity. Figures 20 to 25 As shown, when the armrest 3 is in the open state, the backrest frame 21 is rotated backward, the position of the mounting base 10 remains unchanged, the fixed rail 41 is rotated around the rotating connection, in this process, the movable rail 42 is limited by the blocking piece 45 along the direction of the fixed rail 41, the position of the movable rail 42 relative to the fixed rail 41 remains unchanged, and the angle between the armrest 3 and the horizontal plane remains unchanged.
[0079] The utility model is described in detail above in combination with the embodiments of the drawings, and those skilled in the art can make various change examples of the utility model according to the above description. Thus, certain details in the embodiments should not constitute a limitation on the utility model, and the utility model will take the range defined by the appended claims as the protection range of the utility model.
Claims
1. A car seat having an adaptive armrest, characterized by, The utility model relates to a chair, which comprises: a mounting base (10); a backrest assembly rotatably mounted on the mounting base (10); a support plate (23) connected to the backrest assembly; an armrest (3) rotatably connected to the support plate (23), which can be rotated to an open state and also to a folded state; a fixed rail (41) rotatably mounted at one end on the mounting base (10); a movable rail (42) slidingly arranged on the fixed rail (41), which is connected to the armrest (3) and is adjusted along the fixed rail (41) and the rotation of the fixed rail (41) so that the armrest (3) can keep the same posture in the open state without being affected by the rotation adjustment of the backrest assembly.
2. The automotive seat with an adaptive armrest according to claim 1, wherein The armrest (3) is provided with a pin shaft (32), which is rotatably connected to the movable rail (42).
3. The automotive seat with an adaptive armrest as claimed in claim 1, wherein, The end of the fixed rail (41) is provided with a blocking piece (45).
4. The automotive seat with an adaptive armrest according to claim 1, wherein When the armrest (3) is in the open state, the fixed rail (41) is rotated to an inclined state arranged upward, and the movable rail (42) is slid to the top end of the fixed rail (41).
5. The automotive seat with an adaptive armrest as claimed in claim 1, wherein, The fixed rail (41) is formed with a rail groove. The movable rail (42) is arranged in the rail groove, and a ball (46) is arranged between the movable rail (42) and the groove wall of the rail groove.
6. The automotive seat with an adaptive armrest as claimed in claim 1, wherein, The fixed rail (41) is formed with a rail groove, and a anti-disengagement groove (411) is formed on the groove wall of the rail groove. The movable rail (42) is arranged in the rail groove, and an anti-disengagement guide rail (421) corresponding to the anti-disengagement groove (411) is arranged on the side of the movable rail (42), which is inserted into the anti-disengagement groove (411).
7. The automotive seat with an adaptive armrest as claimed in claim 1, wherein The fixed rail (41) is formed with a rail groove, and the size of the groove opening is smaller than the size of the groove bottom. The movable rail (42) is arranged in the rail groove, and the shape of the movable rail (42) is matched with the shape of the rail groove.
8. The automotive seat with an adaptive armrest as claimed in claim 1, wherein, The support plate (23) is provided with a damping mechanism (5) corresponding to the armrest (3). The armrest (3) is provided with a damping limiting shaft (33), which is slidably arranged on the damping mechanism (5), and the swing of the armrest (3) is limited by the limiting of the damping limiting shaft (33) by the damping mechanism (5).
9. The automotive seat with an adaptive armrest as claimed in claim 8, wherein, The damping mechanism (5) is provided with a stop point (51) at the end of the moving path of the damping limiting shaft (33) to limit the damping limiting shaft (33).
10. The automotive seat with an adaptive armrest as claimed in claim 8, wherein, The damping mechanism (5) is formed with a damping groove. The damping limiting shaft (33) is slidably arranged in the damping groove. When the armrest (3) is in the open state or the folded state, the damping limiting shaft (33) is slid to the end of the damping groove, and a certain gap is left between the damping limiting shaft (33) and the end of the damping groove.