Folding table plate for automobile seat backrest

Abstract

The utility model provides a folding table plate for an automobile seat backrest, which relates to an automobile seat and comprises a seat backrest, a folding table plate and a folding table plate, a table board; each connecting rod assembly comprises an upper connecting rod and a lower connecting rod which are Z-shaped, the rear end of the upper connecting rod is rotatably connected with the upper part of one side of the groove, the front end of the upper connecting rod is rotatably connected with the middle part of one side of the table plate, the rear end of the lower connecting rod is rotatably connected with the middle part of one side of the groove, and the front end of the lower connecting rod is rotatably connected with the rear part of one side; a supporting groove is formed in the upper surface of the front portion of the lower connecting rod, the table board can rotate to be in a horizontal state, and the bent position of the rear portion of the upper connecting rod can be supported on the supporting groove so that the table board can be kept in the horizontal state. The folding table has the advantages that the table board can be stored in the groove after being folded, the occupied space of the table board is greatly reduced, and the situation that the sitting space of passengers in the back row is affected is avoided; and the table plate is automatically locked after rotating to be horizontally unfolded, the table plate is stable and reliable after being unfolded, the structure is simple, and overturning is smooth.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile seats, in particular to a folding table plate for an automobile seat backrest. Background Art

[0002] To facilitate passengers' work and entertainment needs while on the road, some cars have folding tables installed on the backs of their front seats. When needed, passengers unfold the tables to place items such as food, cups, computers, and books. Currently, most seat-back tables are fixed or semi-fixed, independent of the seat itself and installed on the back. This takes up a lot of space and affects rear passenger comfort. Furthermore, these tables have complex folding structures, limited load-bearing capacity when unfolded, and poor stability. Utility Model Content

[0003] In view of this, in order to solve the problem that the existing small table on the back of the seat occupies a large space, an embodiment of the present utility model provides a folding table on the back of a car seat.

[0004] The embodiment of the present utility model provides a folding table for a car seat backrest, comprising:

[0005] a seat back having a grooved back;

[0006] a table top, which is arranged behind the seat back and has a shape that matches the groove;

[0007] And two connecting rod assemblies are respectively arranged on both sides of the table board, each of the connecting rod assemblies includes an upper connecting rod and a lower connecting rod, the upper connecting rod and the lower connecting rod are both Z-shaped, the rear end of the upper connecting rod is rotatably connected to the upper part of one side of the groove, and the front end is rotatably connected to the middle part of one side of the table board, the rear end of the lower connecting rod is rotatably connected to the middle part of one side of the groove, and the front end is rotatably connected to the rear part of the one side, a support groove is provided on the upper surface of the front part of the lower connecting rod, the table board can be rotated to a horizontal state, and the bending part of the rear part of the upper connecting rod can be supported on the support groove to keep the table board in a horizontal state.

[0008] Furthermore, a limiting column is provided on the inner side of the bending part of the rear portion of the upper connecting rod, and the supporting groove is an arc-shaped groove, and the limiting column can be inserted into the supporting groove.

[0009] Furthermore, each of the connecting rod assemblies also includes a locking spring, which is arranged in the groove. The locking spring is provided with an arc-shaped slot, and the limiting column can be locked into the slot when the table top is rotated into the groove.

[0010] Furthermore, a coil spring is provided at one end of the locking spring piece and a hook is provided at the other end, the slot is provided in the middle of the locking spring piece, and the coil spring and the hook are installed in the slot.

[0011] Furthermore, each of the connecting rod assemblies also includes a hinged base, which is fixed to the upper part of one side of the groove, the rear end of the upper connecting rod is hingedly connected to the upper end of the hinged base, and the rear end of the lower connecting rod is hingedly connected to the lower end of the hinged base.

[0012] Furthermore, the articulated base is L-shaped, and sunken grooves are provided on both sides of the bottom of the groove. The articulated base is fixed in the sunken groove, and the bottom surface of the articulated base is attached to and fixedly connected to the bottom of the sunken groove. The rear end of the upper connecting rod is articulatedly connected to the upper side of the articulated base, and the rear end of the lower connecting rod is articulatedly connected to the lower side of the articulated base.

[0013] Furthermore, a trapezoidal spring slot is provided on the front edge of the side surface of the hinged base, and the locking spring is installed in the spring slot so that the slot opening is arranged toward the rear.

[0014] Furthermore, the upper connecting rod is in the shape of a straight plate, the lower connecting rod is in the shape of a stepped plate, the rear portion of the lower connecting rod is vertically aligned with the upper connecting rod, and the front portion of the lower connecting rod protrudes inwardly relative to the upper connecting rod.

[0015] Furthermore, the table top is a rectangular plate.

[0016] Furthermore, a handle is provided on the back of the table top.

[0017] The beneficial effects brought about by the technical solution provided by the embodiment of the present invention are as follows: a folding table plate on a car seat backrest of the present invention is provided with a groove on the back of the seat backrest, and the table plate can be stored in the groove after being folded, which greatly reduces the space occupied by the table plate, avoids affecting the riding space of the rear passengers, is beautiful and tidy, and improves comfort; and after the table plate is rotated to be horizontally unfolded, the connecting rod assembly supports the upper connecting rod through the lower connecting rod, forming a connecting rod mechanism that stably supports the table plate, thereby realizing automatic locking of the table plate. The table plate is stable and reliable after unfolding, has a simple structure, and can be flipped smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of a folding table on a car seat backrest in an unfolded state according to the utility model;

[0019] Figure 2 yes Figure 1 Schematic diagram of the status of the middle connecting rod assembly and the table board;

[0020] Figure 3 yes Figure 1 Schematic diagram of the status of the middle connecting rod assembly;

[0021] Figure 4 It is a schematic diagram of the upper link;

[0022] Figure 5 is a schematic diagram of the lower link;

[0023] Figure 6 This is a schematic diagram of a folding table on a car seat backrest in a folded state according to the utility model;

[0024] Figure 7 yes Figure 6 Schematic diagram of the status of the middle connecting rod assembly and the table board;

[0025] Figure 8 yes Figure 6 Schematic diagram of the status of the middle connecting rod assembly;

[0026] Figure 9 is a schematic diagram of the hinged base and locking spring.

[0027] In the figure: 1. Seat back; 101. Groove; 102. Sunken groove; 2. Table top; 201. Handle; 3. Connecting rod assembly; 301. Upper connecting rod; 302. Lower connecting rod; 303. Articulated base; 304. Limiting column; 305. Support groove; 306. Locking spring; 307. Slot; 308. Coil spring; 309. Hook; 310. Reed groove. DETAILED DESCRIPTION

[0028] To make the purpose, technical solutions, and advantages of the present invention more clear, the following will further describe the embodiments of the present invention with reference to the accompanying drawings. The following describes a preferred embodiment of the present invention among multiple possible embodiments, which is intended to provide a basic understanding of the present invention, but is not intended to identify the key or decisive elements of the present invention or to limit the scope of protection to be provided.

[0029] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0030] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0031] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in the subsequent drawings. At the same time, it should be understood that for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual scale.

[0032] It should be noted that, unless otherwise specified or limited, the terms "mounted" and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0033] Please refer to Figure 1 and 6 An embodiment of the present utility model provides a folding table for a car seat backrest, which mainly includes a seat backrest 1, a table plate 2 and two connecting rod assemblies 3.

[0034] The back of the seat back 1 is provided with a groove 101. The seat back 1 is generally the back of the front seat of a car, such as the back of the main driver's seat and the front passenger seat. The groove 101 is generally provided in the middle of the seat back 1.

[0035] The table top 2 is arranged behind the seat back 1, and its shape is adapted to the groove 101. Generally, the table top 2 is stored in the groove 101 when not in use, so as to reduce the space occupied by the table top 2 and ensure the seating space of the seat back 1. The shape of the table top 2 and the shape of the groove 101 are set to be approximately the same, so that the table top 2 can be folded and stored in the groove 101, and can ensure that the table top 2 is neat and beautiful after folding and storing. As in this embodiment, the shape of the table top 2 and the shape of the groove 101 are both approximately rectangular.

[0036] like Figure 2 and 3 As shown, two connecting rod assemblies 3 are respectively provided on both sides of the table top 2, and each connecting rod assembly 3 connects one side of the table top 2 and one side of the groove 101, so that the table top 2 can rotate relative to each other. In order to facilitate pulling the table top 2 to rotate, a handle 201 is provided on the back of the table top 2, which can be used to easily pull the table top 2 to rotate.

[0037] Each of the connecting rod assemblies specifically includes an upper connecting rod 301 and a lower connecting rod 302. The upper connecting rod 301 and the lower connecting rod 302 are both Z-shaped. The upper connecting rod 301 is located above the lower connecting rod 302. The rear end of the upper connecting rod 301 is rotatably connected to the upper part of one side of the groove 101, and the front end is rotatably connected to the middle part of one side of the table top 2. The rear end of the lower connecting rod 302 is rotatably connected to the middle part of one side of the groove 101, and the front end is rotatably connected to the rear of the one side.

[0038] It should be noted that the cross-sectional shapes of the upper connecting rod 301 and the lower connecting rod 302 can be set to various shapes according to the actual application scenario. Figure 4 and 5 As shown, in this embodiment, the upper connecting rod 301 is in the shape of a straight plate, the lower connecting rod 302 is in the shape of a stepped plate, the rear portion of the lower connecting rod 302 is vertically aligned with the upper connecting rod 301 , and the front portion of the lower connecting rod 302 protrudes inward relative to the upper connecting rod 301 .

[0039] More specifically, Figure 9 As shown, each of the connecting rod assemblies further includes a hinge base 303, through which the rear ends of the upper connecting rod 301 and the lower connecting rod 302 are connected to the groove 101. The hinge base 303 is fixed to the upper portion of one side of the groove 101, and the rear end of the upper connecting rod 301 is hingedly connected to the upper end of the hinge base 303, while the rear end of the lower connecting rod 302 is hingedly connected to the lower end of the hinge base 303.

[0040] The articulated base 303 can be flexibly configured in various forms according to actual application scenarios. For example, in this embodiment, the articulated base 303 is L-shaped, with sunken grooves 102 provided on both sides of the bottom of the groove 101. Here, the sunken grooves 102 are rectangular grooves that are recessed relative to the bottom of the groove 101. The articulated base 303 is fixed in the sunken groove 102, with the bottom surface of the articulated base 303 abutting and fixedly connected to the bottom of the sunken groove 102. The rear end of the upper connecting rod 301 is hingedly connected to the upper side of the articulated base 303, and the rear end of the lower connecting rod 302 is hingedly connected to the lower side of the articulated base 303. In this way, the rear ends of the upper connecting rod 301 and the lower connecting rod 302 can rotate around the upper and lower sides of the articulated base 303, respectively.

[0041] Furthermore, a support groove 305 is provided on the upper surface of the front portion of the lower link 302. The table top 2 can be rotated to a horizontal position, and the bent portion of the rear portion of the upper link 301 can be supported on the support groove 305 to maintain the table top 2 in a horizontal position. To ensure that the bent portion of the rear portion of the upper link 301 is more stably supported on the support groove 305, a limiting post 304 is provided inside the bent portion of the rear portion of the upper link 301. The supporting groove 305 is an arc-shaped groove. When the table top 2 is rotated to a horizontal position, the limiting post 304 fits neatly into the supporting groove 305, and the limiting post 304 is caught by the supporting groove 305, thereby locking the table top 2 in a horizontal position.

[0042] In addition, if Figure 7 、 8As shown in FIG9 , in order to lock the table top 2 after it is rotated into the groove 101, each connecting rod assembly further includes a locking spring 306, which is disposed in the groove 101. The locking spring 306 is provided with an arc-shaped slot 307, and when the table top 2 is rotated into the groove 101, the limiting column 304 can be locked into the slot 307.

[0043] It should be noted that the locking spring 306 can be flexibly selected according to the actual application scenario. For example, in this embodiment, the locking spring 306 is provided with a coil spring 308 at one end and a hook 309 at the other end. The locking slot 307 is provided in the middle of the locking spring 306, and the coil spring 308 and the hook 309 are installed in the groove 101. Here, the locking spring 306 is installed on the hinge base 303. Specifically, the front edge of the side of the hinge base 303 is provided with a trapezoidal spring slot 310. The locking spring 306 is installed in the spring slot 310 so that the opening of the locking slot 307 is facing backward. When the table top 2 rotates into the groove 101 and abuts the bottom of the groove 101, the limiting post 304 is precisely engaged with the locking slot 307, thereby locking the connecting rod assembly 3. The table top 2 is locked after being folded and stored.

[0044] The folding table of the car seat backrest of the present application has two working states: unfolded and folded:

[0045] Expanded state: Figure 1 and 2 As shown, the table top 2 is pulled to rotate the upper part of the table top 2 outward, and the limiting column 304 is disengaged from the slot 307 of the locking spring 306. The upper connecting rod 301 and the lower connecting rod 302 rotate at the same time until the table top 2 rotates to a horizontal state. At this time, the limiting column 304 on the upper connecting rod 301 is inserted into the supporting groove 305, so that the upper connecting rod 301 and the lower connecting rod 302 are locked, thereby keeping the table top 2 in a horizontal state.

[0046] Folded state, such as Figure 6 and 7 As shown, the table top 2 is pulled to rotate the upper part of the table top 2 inward, the limiting column 304 leaves the supporting groove 305, and the upper connecting rod 301 and the lower connecting rod 302 rotate simultaneously until the table top 2 rotates into the groove 101 and fits with the bottom of the groove 101. At this time, the limiting column 304 is engaged with the slot 307 of the locking spring 306, so that the upper connecting rod 301 and the lower connecting rod 302 are locked, so that the table top 2 remains in a folded and stored state.

[0047] In this document, directional terms such as front, back, top, and bottom are defined based on the positions of components in the accompanying drawings and relative to each other, and are intended for clarity and convenience in describing the technical solution. It should be understood that these terms are relative and may vary depending on usage and placement. The use of these directional terms should not limit the scope of protection claimed in this application.

[0048] The above embodiments and features of the embodiments may be combined with each other unless there is a conflict. The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A folding table for a car seat back, characterized in that: include: a seat back having a groove on the back; A table top, which is arranged behind the seat back and has a shape matching the groove; And two connecting rod assemblies are respectively arranged on both sides of the table top, each of the connecting rod assemblies includes an upper connecting rod and a lower connecting rod, the upper connecting rod and the lower connecting rod are both Z-shaped, the rear end of the upper connecting rod is rotatably connected to the upper part of one side of the groove, and the front end is rotatably connected to the middle part of one side of the table top, the rear end of the lower connecting rod is rotatably connected to the middle part of one side of the groove, and the front end is rotatably connected to the rear of one side, a supporting groove is provided on the upper surface of the front part of the lower connecting rod, the table top can be rotated to a horizontal state, and the bending part of the rear part of the upper connecting rod can be supported on the supporting groove to keep the table top in a horizontal state.

2. A folding table for a car seat backrest as claimed in claim 1, characterized in that: A limiting column is provided inside the bending part of the rear part of the upper connecting rod, and the supporting groove is an arc-shaped groove, and the limiting column can be inserted into the supporting groove.

3. A folding table for a car seat backrest as claimed in claim 2, characterized in that: Each of the connecting rod assemblies further comprises a locking spring, which is arranged in the groove. The locking spring is provided with an arc-shaped slot, and the limiting column can be inserted into the slot when the table top is rotated into the groove.

4. A folding table for a car seat backrest as claimed in claim 3, characterized in that: A coil spring is provided at one end of the locking spring sheet and a hook is provided at the other end. The clamping groove is arranged in the middle of the locking spring sheet, and the coil spring and the hook are installed in the groove.

5. A folding table for a car seat backrest as claimed in claim 4, characterized in that: Each of the connecting rod assemblies also includes a hinged base, which is fixed to the upper part of one side of the groove, the rear end of the upper connecting rod is hingedly connected to the upper end of the hinged base, and the rear end of the lower connecting rod is hingedly connected to the lower end of the hinged base.

6. A folding table for a car seat backrest as claimed in claim 5, characterized in that: The articulated base is L-shaped, and both sides of the bottom of the groove are provided with sinking grooves. The articulated base is fixed in the sinking groove, and the bottom surface of the articulated base is attached to and fixedly connected to the bottom of the sinking groove. The rear end of the upper connecting rod is hingedly connected to the upper side of the articulated base, and the rear end of the lower connecting rod is hingedly connected to the lower side of the articulated base.

7. A folding table for a car seat backrest as claimed in claim 6, characterized in that: A trapezoidal spring slot is provided on the front edge of the side surface of the hinged base, and the locking spring is installed in the spring slot so that the opening of the slot is arranged backward.

8. The folding table for a car seat backrest as claimed in claim 1, characterized in that: The upper connecting rod is in the shape of a straight plate, the lower connecting rod is in the shape of a stepped plate, the rear portion of the lower connecting rod is vertically aligned with the upper connecting rod, and the front portion of the lower connecting rod protrudes inwardly relative to the upper connecting rod.

9. The folding table for a car seat backrest as claimed in claim 1, characterized in that: The table top is a rectangular plate.

10. The folding table for a car seat backrest as claimed in claim 1, characterized in that: A handle is provided on the back of the table top.

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