Foldable table plate structure and automobile seat

Abstract

The utility model relates to the technical field of automobile seats, and discloses a foldable table plate structure and an automobile seat, and the foldable table plate structure comprises a mounting bracket, a table plate and a table top, a long-strip-shaped groove is formed in the table board, and the connecting rod mechanism comprises an upper connecting rod and a lower connecting rod. Arc-shaped grooves are formed in one ends of the upper connecting rods away from the mounting bracket; the table plate has an unfolding position state and a folding position state on the back side of the automobile seat and can be switched between the two position states; one end of the shielding cover is configured to be a sliding end, the other end of the shielding cover is configured to be a hinged end, the sliding end is slidably arranged on the table board, and the hinged end extends to the arc-shaped groove and is hinged to the upper connecting rod; a gap is kept between the hinged end and the side wall of the arc-shaped groove; and when the table plate is switched to the unfolding position state, the shielding cover shields the long-strip-shaped groove. The utility model has the advantages that the conditions of scraping and abnormal sound can be effectively prevented, and the whole structure is simple.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile seat, especially to a foldable table board structure and automobile seat. BACKGROUND

[0002] A foldable small table board is arranged on the back side of the front row of automobile seats and can be used by passengers on the rear row of automobile seats. When the small table board is needed, it is unfolded from the back side of the front row of automobile seats. When the small table board is not needed, it is folded to the back side of the front row of automobile seats, without occupying other space.

[0003] The existing foldable table board on the back side of the automobile seat mainly has a table board rotating type through a rotating shaft and a table board rotating type through a four-bar linkage mechanism. Compared with the table board rotating type through a single rotating shaft, the table board rotating type through a four-bar linkage mechanism has better stability and a wider range of application. In the existing automobile seat with the table board rotating type through a four-bar linkage mechanism, in order to ensure that the linkage recess on the upper surface of the table board is not exposed after the table board is unfolded, a groove cover is arranged. When the table board is unfolded for use, the groove cover is driven by the four-bar linkage mechanism to cover the linkage recess, so as to ensure the appearance of the table board and prevent foreign matters from falling into the linkage recess. However, in the use process, the table board is prone to scratching and making abnormal noise when unfolded, which affects the user experience. SUMMARY

[0004] In view of the above problems in the prior art, the technical problem to be solved by the utility model is to provide a foldable table board structure and automobile seat which can effectively prevent scratching and abnormal noise.

[0005] The utility model solves the technical problem by adopting the following technical scheme: a foldable table board structure is provided, which is arranged on the back side of an automobile seat and comprises:

[0006] A mounting bracket is arranged on the back side of the automobile seat.

[0007] A four-bar linkage mechanism and a table board are arranged on the back side of the automobile seat. The table board is provided with a long slot. The four-bar linkage mechanism comprises upper links and lower links. One end of each of the upper links and the lower links is rotatably connected to the mounting bracket. The other end of each of the upper links and the lower links extends from the long slot to the table board and is rotatably connected to the table board. One end of the upper link away from the mounting bracket is provided with an arc-shaped slot. The table board has an unfolded position state and a folded position state on the back side of the automobile seat and can be switched between the two position states.

[0008] A cover is arranged on the back side of the automobile seat. One end of the cover is configured as a sliding end, and the other end is configured as a hinged end. The sliding end is slidably arranged on the table board. The hinged end extends to the arc-shaped slot and is hinged to the upper link. A gap is maintained between the hinged end and the sidewall of the arc-shaped slot.

[0009] When the table board switches to the unfolded position state, the blocking cover is blocked at the long slot.

[0010] Further, the upper connecting rod is hinged with the hinge end through a hinge, and a bushing is sleeved on the hinge, which can increase the relative rotation support surface between the hinge end and the upper connecting rod.

[0011] Further, one end of the bushing protrudes a boss to the outer periphery, one end face of the boss is attached to the side wall of the arc-shaped slot, and the other end face of the boss is attached to the hinge end, so that a gap is kept between the hinge end and the side wall of the arc-shaped slot.

[0012] Further, the gap between the hinge end and the side wall of the arc-shaped slot is less than or equal to 1mm.

[0013] Further, a top edge is protruded to the arc-shaped slot on the side wall of the arc-shaped slot, and the gap between the top edge and the hinge end is less than the gap between the side wall of the arc-shaped slot and the hinge end.

[0014] When the table board switches to the unfolded position state, the top edge is blocked at the long slot.

[0015] Further, the arc-shaped slot has a circular arc face, when the blocking cover rotates relative to the upper connecting rod, the hinge end rotates along the circular arc face, and the hinge end does not contact the circular arc face.

[0016] Further, the thickness of the hinge end is less than or equal to the depth of the arc-shaped slot, and the hinge end can be accommodated in the arc-shaped slot.

[0017] Further, the upper connecting rod and the blocking cover are both made of metal material, and the bushing is made of POM material.

[0018] Further, a sliding groove is arranged on the table board, a sliding pin is arranged on the sliding end of the blocking cover, soft rubber sleeves are sleeved on both ends of the sliding pin, and the two soft rubber sleeves are in the sliding groove.

[0019] The utility model also provides an automobile seat, the back side of the automobile seat is equipped with the foldable table board structure.

[0020] Compared with the prior art, the utility model has at least the following beneficial effects:

[0021] In the utility model, when the table board is switched to the unfolded position state, the shielding cover is shielded at the long slot, the long slot is avoided from being exposed, the appearance is guaranteed, and other foreign matters are effectively prevented from falling into the long slot to avoid causing the table board to be stuck and damaged. The hinged end of the shielding cover extends into the arc-shaped slot of the upper connecting rod, and a gap is kept between the hinged end and the sidewall of the arc-shaped slot, and in the process of unfolding and folding the table board, the hinged end and the upper connecting rod can be effectively prevented from rubbing, scratching and making noise and abnormal sound.

[0022] In the utility model, the bushing is sleeved on the hinge part, the relative rotation supporting surface between the hinged end and the upper connecting rod can be increased, and the stability during movement is further guaranteed. The outer periphery of one end of the bushing protrudes a boss, and the two end faces of the boss are respectively attached to the hinged end and the sidewall of the arc-shaped slot, so that the gap between the hinged end and the sidewall of the arc-shaped slot is always kept, and the structural stability is good.

[0023] In the utility model, the sliding end of the shielding cover is provided with a sliding pin, the two ends of the sliding pin are respectively sleeved with a soft rubber sleeve, the two soft rubber sleeves are directly contacted with the sliding groove, in the process of unfolding and closing the table board, the soft rubber sleeve is rubbed with the sliding groove, the metal sliding pin is avoided from being directly rubbed with the sliding groove, noise is avoided from being generated, and the service life is improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a structural schematic view when the table board in the table board structure of the utility model is in the folded position state;

[0025] Figure 2 It is a structural schematic view when the table board in the table board structure of the utility model is in the unfolded position state; Figure 1

[0026] Figure 3 It is a structural schematic view when the table board in the table board structure of the utility model is in the unfolded position state;

[0027] Figure 4 It is a structural schematic view when the table board in the table board structure of the utility model is in the unfolded position state; Figure 3

[0028] It is a structural schematic view when the table board in the table board structure of the utility model is in the unfolded position state; Figure 5 Figure 2 It is a structural schematic view when the table board in the table board structure of the utility model is in the unfolded position state;

[0029] Figure 6 Figure 4 It is a structural schematic view when the table board in the table board structure of the utility model is in the unfolded position state;

[0030] Figure 7 It is a structural schematic view when the table board in the table board structure of the utility model is in the unfolded position state; Figure 1

[0031] Figure 8 Figure 3 ​​​​​Structure schematic diagram after removing the table board;

[0032] Figure 9 For Figure 8 Schematic diagram of the plane;

[0033] Figure 10 As an exploded schematic diagram of the upper connecting rod, the shielding cover, the hinge, the bushing, the sliding pin and the soft rubber sleeve.

[0034] In the figure:

[0035] 1, mounting bracket;

[0036] 2, connecting rod mechanism; 21, upper connecting rod; 22, lower connecting rod; 23, hinge; 24, bushing; 210, arc-shaped groove; 210A, circular arc surface; 211, top edge; 240, boss;

[0037] 3, table board; 30, long slot; 31, sliding groove;

[0038] 4, shielding cover; 41, sliding end; 42, hinged end; 43, sliding pin; 44, soft rubber sleeve. DETAILED DESCRIPTION

[0039] The following is a specific embodiment of the present application and further describes the technical solution of the present application in combination with the drawings, but the present application is not limited to these embodiments.

[0040] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0041] In addition, the descriptions such as "first", "second", "one" and the like in the present application are only for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0042] In the utility model, unless another definite provision and limitation, the terms "connect", "fix" and the like should be understood broadly, for example, "fix" can be fixed connection, also can be detachable connection, or be integrated, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through intermediate medium, can be the communication or mutual action relation of two elements, unless another definite limitation, for the ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0043] In addition, the technical solutions of various embodiments of the utility model can be combined with each other, but it must be based on that the ordinary skilled in the art can realize, when the combination of technical solutions appears mutual contradiction or cannot be realized, it should be considered that the combination of technical solutions does not exist, also not within the protection scope required by the utility model.

[0044] As shown in Figures 1-10 A foldable table plate structure is arranged on the back side of the automobile seat, mainly comprising: mounting bracket 1, connecting rod mechanism 2, table plate 3 and shielding cover 4, the mounting bracket 1 can be fixed with the backrest of the automobile seat, so that the table plate structure is integrally installed on the automobile seat; the connecting rod mechanism 2 mainly comprises a pair of symmetrically arranged upper connecting rods 21 and a pair of symmetrically arranged lower connecting rods 22; the table plate 3 mainly comprises a table plate main body, a skeleton and a left side trim strip (not marked in the figure) and a right side trim strip (not marked in the figure) arranged on the table plate main body, the left side trim strip and the right side trim strip are electroplated to ensure the appearance of the table plate 3.

[0045] The table plate 3 is provided with a long slot 30. The connecting rod mechanism 2 comprises the upper connecting rod 21 and the lower connecting rod 22, one end of the upper connecting rod 21 and the lower connecting rod 22 is rotatably connected with the mounting bracket 1, the other end of the upper connecting rod 21 and the lower connecting rod 22 is rotatably connected with the table plate 3; the end of the upper connecting rod 21 away from the mounting bracket 1 is provided with an arc-shaped slot 210; the table plate 3 has an unfolded position state and a folded position state on the back side of the automobile seat, and can be switched between the two position states; when the table plate 3 is switched to the unfolded position state, the table plate 3 is basically horizontally arranged, which is convenient for the rear passengers to use the table plate 3; when the table plate 3 is switched to the folded position state, the table plate 3 is attached to the back side of the backrest of the automobile seat, without occupying other space. One end of the shielding cover 4 is configured as a sliding end 41, the other end of the shielding cover 4 is configured as a hinged end 42, the sliding end 41 is slidably arranged on the table plate 3, the hinged end 42 extends to the arc-shaped slot 210 and is hinged with the upper connecting rod 21; a gap is maintained between the hinged end 42 and the side wall of the arc-shaped slot 210. When the table plate 3 is switched to the unfolded position state, the shielding cover 4 is shielded at the long slot 30.

[0046] In actual use, when the table board 3 is switched to the unfolded position state, the shielding cover 4 is shielded at the long slot 30, avoiding the long slot 30 from being exposed, ensuring the aesthetics, and effectively preventing other foreign matters from falling into the long slot 30 to avoid causing the table board 3 to be stuck or damaged. The hinged end 42 of the shielding cover 4 extends into the arc-shaped slot 210 of the upper connecting rod 21, and a gap is maintained between the hinged end 42 and the side wall of the arc-shaped slot 210. During unfolding and folding of the table board 3, the hinged end 42 and the upper connecting rod 21 can be effectively prevented from rubbing and scratching each other to generate noise and abnormal sound.

[0047] As shown in Figures 5-10 the embodiment, the shielding cover 4 is also provided as a rod member, which is made of metal. The upper connecting rod 21 and the shielding cover 4 are both made of metal. The hinged end 42 of the shielding cover 4 and the upper connecting rod 21 are hinged through a hinge 23. The hinge 23 is preferably a stepped bolt, and a bushing 24 made of POM is sleeved on the hinge 23. The bushing 24 can increase the relative rotation support surface between the hinged end 42 and the upper connecting rod 21. One end of the bushing 24 protrudes outward to form a boss 240. One end surface of the boss 240 is attached to the side wall of the arc-shaped slot 210, and the other end surface of the boss 240 is attached to the hinged end 42, so that a gap is always maintained between the hinged end 42 and the side wall of the arc-shaped slot 210. Specifically, the gap between the hinged end 42 and the side wall of the arc-shaped slot 210 is less than or equal to 1 mm, which ensures that the two do not rub against each other and also ensures that the aesthetics are not affected.

[0048] The thickness of the hinged end 42 is less than or equal to the depth of the arc-shaped slot 210, so that the hinged end 42 can be accommodated in the arc-shaped slot 210. Preferably, the thickness of the upper connecting rod 21 is equal to the thickness of the shielding cover 4. When the shielding cover 4 and the upper connecting rod 21 are assembled, the hinged end 42 is accommodated in the arc-shaped slot 210 and is flush, and the left and right side surfaces of the shielding cover 4 are flush with the left and right side surfaces of the upper connecting rod 21, thereby occupying a small space.

[0049] In actual use, the bushing 24 is sleeved on the hinge 23, which can increase the relative rotation support surface between the hinged end 42 and the upper connecting rod 21, thereby ensuring the stability during movement. One end of the bushing 24 protrudes outward to form a boss 240. The two end surfaces of the boss 240 are attached to the hinged end 42 and the side wall of the arc-shaped slot 210, respectively, so that a gap is always maintained between the hinged end 42 and the side wall of the arc-shaped slot 210, and the structure is stable.

[0050] Specifically, the top edge 211 is protruded from the side wall of the arc-shaped groove 210 towards the arc-shaped groove 210, and the gap between the top edge 211 and the hinge end 42 is smaller than the gap between the side wall of the arc-shaped groove 210 and the hinge end 42. When the table board 3 is switched to the unfolded position, the top edge 211 blocks the long groove 30. If the top edge 211 is not provided, the gap between the side wall of the arc-shaped groove 210 and the hinge end 42 can be seen. However, with the provision of the top edge 211, the gap between the side wall of the arc-shaped groove 210 and the hinge end 42 can be blocked by the top edge 211 after the table board 3 is unfolded, thereby ensuring the aesthetic appearance.

[0051] In actual use, the top edge 211 is provided at the top of the arc-shaped groove 210, and the top edge 211 blocks the top of the long groove 30 when the table board 3 is unfolded, thereby blocking the gap between the hinge end 42 and the side wall of the arc-shaped groove 210, ensuring the reliable blocking of the blocking cover 4 and the high aesthetic appearance.

[0052] Further specifically, in the embodiment, the arc-shaped groove 210 has a circular arc surface 210A, and when the blocking cover 4 rotates relative to the upper connecting rod 21, the hinge end 42 rotates along the circular arc surface 210A without contacting the circular arc surface 210A. That is, when the upper connecting rod 21 and the blocking cover 4 rotate relative to each other, the hinge end 42 of the blocking cover 4 rotates along the circular arc surface 210A in the arc-shaped groove 210 without contacting the circular arc surface 210A, that is, the hinge end 42 does not interfere with the circular arc surface 210A, thereby ensuring smooth relative movement.

[0053] In the embodiment, the table board 3 is provided with a sliding groove 31, specifically, the left side trim and the right side trim of the table board 3 are provided with the sliding groove 31. The sliding end 41 of the blocking cover 4 is provided with a sliding pin 43, and the two ends of the sliding pin 43 are each sleeved with a soft rubber sleeve 44, and the two soft rubber sleeves 44 are located in the sliding groove 31. That is, the sliding end 41 of the blocking cover 4 is slidably arranged in the sliding groove 31 through the sliding pin 43 and the two soft rubber sleeves 44. The sliding pin 43 is made of metal to ensure sufficient strength, and the two soft rubber sleeves 44 are made of flexible material rather than rigid material, thereby ensuring that the sliding end 41 of the blocking cover 4 does not make noise or abnormal sound when sliding along the sliding groove 31.

[0054] In actual use, the sliding end 41 of the blocking cover 4 is provided with a sliding pin 43, and the two ends of the sliding pin 43 are each sleeved with a soft rubber sleeve 44, and the two soft rubber sleeves 44 directly contact the sliding groove 31. During the unfolding and closing of the table board 3, the soft rubber sleeves 44 rub against the sliding groove 31, thereby avoiding the direct friction between the metal sliding pin 43 and the sliding groove 31, avoiding the generation of noise, and avoiding scratching the sliding groove 31, thereby effectively improving the service life.

[0055] Preferably, the table board structure of the present embodiment can be applied to the structure of a manual table board, i.e. the table board 3 is switched between the unfolded position state and the folded position state by manual driving. It can also be applied to the structure of an electric table board, i.e. the table board 3 is switched between the unfolded position state and the folded position state by motor driving. The double four-bar linkage mechanism 2 is formed between the table board 3, the pair of upper connecting rods 21, the pair of lower connecting rods 22 and the mounting bracket 1, and a damper is arranged at the end of the upper connecting rod 21 close to the table board 3. When the table board 3 is switched to the unfolded position state, the lower surface of the upper connecting rod 21 abuts against the upper surface of the lower connecting rod 22, which can play a limiting role and ensure the structural stability of the table board 3 when it is unfolded for use. Since these structures are prior art in the field, they will not be described in detail here.

[0056] In the present scheme, a gap is maintained between the hinge end 42 and the side wall of the arc-shaped groove 210, and the cover 4 is shielded at the long slot 30 when the table board 3 is switched to the unfolded position state, which can effectively reduce the scratching and abnormal sound and the overall structure is simple.

Claims

1. A foldable table structure, configured on the back of a car seat, characterized in that, include: Mounting bracket; The system includes a linkage mechanism and a table. The table has an elongated groove. The linkage mechanism includes an upper linkage and a lower linkage. One end of each of the upper and lower linkages is rotatably connected to the mounting bracket, and the other ends of both linkages extend from the elongated groove to the table and are rotatably connected to the table. The end of the upper linkage away from the mounting bracket has an arc-shaped groove. The table has an unfolded position and a folded position on the back of the car seat and can switch between the two positions. A cover has a sliding end at one end and a hinged end at the other end. The sliding end is slidably mounted on the tabletop, and the hinged end extends into the arc-shaped groove and is hinged to the upper connecting rod. A gap is maintained between the hinged end and the side wall of the arc-shaped groove. When the table is switched to the unfolded position, the cover blocks the long groove.

2. The foldable tabletop structure according to claim 1, characterized in that, The upper connecting rod and the hinge end are hinged together by a hinge member, and a bushing is sleeved on the hinge member. The bushing can increase the relative rotational support surface between the hinge end and the upper connecting rod.

3. The foldable tabletop structure according to claim 2, characterized in that, One end of the bushing protrudes outward from its periphery with a boss. One end face of the boss is in contact with the side wall of the arc-shaped groove, and the other end face of the boss is in contact with the hinge end, so that a gap is maintained between the hinge end and the side wall of the arc-shaped groove.

4. The foldable tabletop structure according to claim 1 or 3, characterized in that, The gap between the hinge end and the sidewall of the arc-shaped groove is less than or equal to 1 mm.

5. The foldable tabletop structure according to claim 1, characterized in that, A top edge protrudes from the side wall of the arc-shaped groove into the arc-shaped groove, and the gap between the top edge and the hinge end is smaller than the gap between the side wall of the arc-shaped groove and the hinge end. When the table is switched to the unfolded position, the top edge covers the long groove.

6. The foldable tabletop structure according to claim 1, characterized in that, The arc-shaped groove has an arc surface. When the cover rotates relative to the upper connecting rod, the hinge end rotates along the arc surface, and the hinge end does not contact the arc surface.

7. The foldable tabletop structure according to claim 1, characterized in that, The thickness of the hinge end is less than or equal to the depth of the arc-shaped groove, and the hinge end can be accommodated in the arc-shaped groove.

8. The foldable tabletop structure according to claim 2, characterized in that, The upper connecting rod and the cover are both made of metal, and the bushing is made of POM.

9. The foldable tabletop structure according to claim 1, characterized in that, The tabletop is provided with a sliding groove, and the sliding end of the cover is provided with a sliding pin. Both ends of the sliding pin are fitted with a soft rubber sleeve, and the two soft rubber sleeves are located in the sliding groove.

10. A car seat, characterized in that, The back of the car seat is provided with a foldable table structure as described in any one of claims 1-9.

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