A coccyx support structure suitable for use with a three-row zero-gravity seat

Abstract

The utility model relates to a tail vertebra support structure suitable for three-row zero-gravity seat, its characterized in that, include: fixedly connected on the backrest framework and with the backrest linkage's backrest connecting rod, with the backrest connecting rod rotation connection's linkage lever and the linkage frame of connecting linkage lever and seat pad connecting rod, the backrest framework lays flat and drives the backrest connecting rod, the backrest connecting rod drives linkage lever to seat rear cross as the fulcrum and lifts linkage frame, the linkage frame lifts seat pad connecting rod and drives the back cushion rear end to lift, the utility model's advantage is: can lift the back cushion rear end when laying flat backrest, makes it with the backrest that lays flat, effectively provides tail vertebra support, increases the comfort of the passenger.

Description

Technical Field

[0001] This utility model relates to the field of automotive seat technology, specifically to a tail ridge support structure suitable for three-row zero-gravity seats. Background Technology

[0002] Currently, most zero-gravity car seats have a reclining backrest function, making it convenient for occupants to lie down and rest. However, when the backrest is in the reclined position, a significant height difference easily forms between it and the back of the seat cushion. This difference directly causes significant pressure on the occupant's lower back when lying down, resulting in a strong feeling of pressure on the lower back and seriously affecting rest comfort. Therefore, there is an urgent need to develop a special device that can reduce this height difference. Utility Model Content

[0003] In view of the above problems, the purpose of this utility model is to provide a tailbone support structure suitable for three-row zero-gravity seats to improve the comfort of reclining position and overcome the shortcomings of the prior art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A tail support structure suitable for three-row zero-gravity seats includes: a backrest link fixed to the backrest frame and linked to the backrest; a linkage lever rotatably connected to the backrest link; and a linkage frame connecting the linkage lever and the seat cushion link. When the backrest frame is laid flat and rotated, it drives the backrest link. The backrest link drives the linkage lever to lift the linkage frame with the rear of the seat as the fulcrum. The linkage frame lifts the seat cushion link and drives the rear end of the seat cushion to rise and be flush with the flat backrest.

[0005] As a preferred embodiment of this utility model, one end of the backrest connecting rod is fixed to the backrest frame and located near the rear horizontal tube of the seat, and the other end of the backrest connecting rod is provided with a waist-shaped hole.

[0006] As a preferred embodiment of this utility model, one end of the linkage lever is fixedly connected to a pin that is slidably connected in the waist-shaped hole of the backrest connecting rod, and the other end of the linkage lever is fixedly connected to the linkage frame.

[0007] As a preferred embodiment of this utility model, the middle part of the linkage lever is U-shaped, and the middle part of the U-shape of the linkage lever partially surrounds the back of the seat and rotates on the back of the seat.

[0008] As a preferred embodiment of this utility model, the linkage frame includes: a guide sleeve fixedly connected to the linkage lever, and a guide block fitted on the seat cushion connecting rod. The guide sleeve has a guide slide inside. One end of the guide block is fitted on the seat cushion connecting rod, and the other end of the guide block is slidably connected in the guide slide of the guide sleeve. The guide sleeve is lifted and pushes the guide block under the action of the linkage lever, and the guide block drives the seat cushion connecting rod to lift.

[0009] As a preferred embodiment of this utility model, the guide sleeve is further provided with a support arm, one end of which is fixedly connected to the guide sleeve, and the other end of which is hinged to the seat frame under the seat cushion.

[0010] The advantages and positive effects of this utility model are: 1. This utility model can lift the rear end of the seat cushion when the backrest is laid flat, so that it is aligned with the backrest, effectively providing tailbone support and increasing passenger comfort.

[0011] 2. The coccyx support structure of this utility model adopts a purely mechanical structure, which has the advantages of being simple, compact, and low in cost. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the seat in this utility model.

[0013] Figure 2 This is a schematic diagram of the coccyx support structure in this utility model.

[0014] Figure reference numerals: 1. Backrest link 2. Linkage lever 3. Seat cushion link 4. Waist-shaped hole 5. Guide sleeve 6. U-shaped middle part 7. Guide block 8. Support arm Detailed Implementation

[0015] In the following description, numerous specific details are set forth for illustrative purposes and to provide a thorough understanding of one or more embodiments. However, it will be apparent that these embodiments may also be implemented without these specific details. In other instances, well-known structures and devices are shown in block diagram form for ease of description of one or more embodiments.

[0016] See Figure 1-2This embodiment provides a tail support structure suitable for three-row zero-gravity seats, including: a backrest link 1 fixed to the backrest frame and linked to the backrest; a linkage lever 2 rotatably connected to the backrest link 1; and a linkage frame connecting the linkage lever 2 and the seat cushion link 3. When the backrest frame is laid flat and rotated, it drives the backrest link 1. The backrest link 1 drives the linkage lever 2 to lift the linkage frame with the rear transverse section of the seat as the fulcrum. The linkage frame lifts the seat cushion link 3 and drives the rear end of the seat cushion to rise together with the backrest when it is laid flat. One end of the backrest link 1 is fixed to the backrest frame and located near the rear transverse section of the seat. The other end of the backrest link 1 has a waist-shaped hole 4. One end of the linkage lever 2 is fixed to a pin that is slidably connected in the waist-shaped hole 4. The other end of the linkage lever 2 is fixed to the guide sleeve 5 of the linkage frame. The middle part of the linkage lever 2 is U-shaped. The middle part 6 of the U-shape of the linkage lever 2 partially surrounds the rear transverse section of the seat and rotates on the rear transverse section of the seat. The linkage frame includes a guide sleeve 5 fixedly connected to the linkage lever 2, and a guide block 7 fitted on the seat cushion connecting rod 3. The guide sleeve 5 has a guide slide inside. One end of the guide block 7 is fitted on the seat cushion connecting rod 3, and the other end of the guide block 7 is slidably connected in the guide slide of the guide sleeve 5. The guide sleeve 5 is lifted and pushed by the linkage lever 2, and the guide block 7 drives the seat cushion connecting rod 3 to lift. Since the seat cushion connecting rod 3 is fixedly connected to the frame below the rear end of the seat cushion, the lifting and adjustment of the rear end of the seat cushion is indirectly realized. The guide sleeve 5 is also provided with a support arm 8. One end of the support arm 8 is fixedly connected to the guide sleeve 5, and the other end of the support arm 8 is hinged to the seat frame below the seat cushion. The support arm 8 can further improve the support stability.

[0017] Working principle: By adding a tail support structure that is linked to the backrest, the backrest of the seat is flush with the rear end of the seat cushion when it is reclined. Furthermore, since the tail support structure is composed of a backrest link 1, a linkage lever 2, and a linkage frame, it is not only inexpensive but also safer.

[0018] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A tailstock support structure suitable for three rows of zero-gravity seats, characterized in that, include: The backrest link is fixed to the backrest frame and linked to the backrest. The linkage lever is rotatably connected to the backrest link. The linkage frame connects the linkage lever and the seat cushion link. When the backrest frame is laid flat and rotated, it drives the backrest link. The backrest link drives the linkage lever to lift the linkage frame with the rear of the seat as the fulcrum. The linkage frame lifts the seat cushion link and drives the rear end of the seat cushion to rise and be flush with the flat backrest.

2. The tailbone support structure for three-row zero-gravity seats according to claim 1, characterized in that, One end of the backrest link is fixed to the backrest frame and located near the rear cross tube of the seat, and the other end of the backrest link has a waist-shaped hole.

3. A tailbone support structure suitable for three-row zero-gravity seats according to claim 1, characterized in that, One end of the linkage lever is fixedly connected to a pin that is slidably connected in the waist-shaped hole of the backrest connecting rod, and the other end of the linkage lever is fixedly connected to the linkage frame.

4. A tailbone support structure suitable for three-row zero-gravity seats according to claim 3, characterized in that, The middle part of the linkage lever is U-shaped, and the middle part of the U-shape of the linkage lever partially surrounds the back of the seat and rotates on the back of the seat.

5. A tailbone support structure suitable for three-row zero-gravity seats according to claim 1, characterized in that, The linkage frame includes: a guide sleeve fixedly connected to the linkage lever, and a guide block fitted on the seat cushion connecting rod. The guide sleeve has a guide slide inside. One end of the guide block is fitted on the seat cushion connecting rod, and the other end of the guide block is slidably connected in the guide slide of the guide sleeve. The guide sleeve is lifted and pushed by the linkage lever, and the guide block drives the seat cushion connecting rod to lift.

6. A tailbone support structure suitable for three-row zero-gravity seats according to claim 5, characterized in that, The guide sleeve is also provided with a support arm, one end of which is fixedly connected to the guide sleeve, and the other end of which is hinged to the seat frame under the seat cushion.

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