Flat laying mechanism for back row deck chair

Abstract

The utility model discloses a back row deck chair flat laying mechanism which comprises a seat cushion and a backrest, the backrest is rotatably arranged on the seat cushion, a connecting shaft is fixed at the bottom of the backrest, a connecting cavity is arranged on one side of the seat cushion, the connecting shaft penetrates through the connecting cavity and is rotatably arranged on the seat cushion, a gear is fixed on the connecting shaft, and the gear is fixed on the connecting shaft. An arc-shaped toothed plate is meshed with the gear, and a connecting assembly is arranged on the toothed plate. The utility model belongs to the technical field of automobile seats, and particularly relates to a flat laying mechanism for a back row deck chair.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile seats, in particular to a rear-row reclining chair flattening mechanism. Background Art

[0002] In the existing vehicle seat design, the rear seats are equipped with a snap-on structure on both sides of the car. This design determines that the seat adjustment direction is mainly forward to make more space for the trunk. However, this traditional design cannot meet the passengers' needs for lying down when resting in the car. When the passengers want to have a comfortable lying position, they cannot get an ideal resting experience because the seats cannot be laid flat backwards, which reduces the comfort and convenience of the rear passengers during the ride. Utility Model Content

[0003] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a rear reclining chair folding mechanism, which effectively solves the problem that the existing rear seats are not convenient to fold flat backwards.

[0004] In order to achieve the above functions, the technical solution adopted by the present invention is as follows: a rear reclining chair folding mechanism, including a seat cushion and a backrest, the backrest is rotatably arranged on the seat cushion, a connecting shaft is fixed to the bottom of the backrest, a connecting cavity is provided on one side of the seat cushion, the connecting shaft passes through the connecting cavity and is rotatably arranged on the seat cushion, a gear is fixed on the connecting shaft, an arc-shaped tooth plate is meshed on the gear, and a connecting component is provided on the tooth plate.

[0005] Preferably, the connecting assembly includes a connecting rod and a movable cavity, the movable cavity is arranged on one side of the backrest, the connecting rod passes through the movable cavity and extends out of the upper and lower ends of the backrest, the bottom end of the connecting rod is fixedly connected to the tooth plate, and a fixed plate is fixed on the connecting rod located in the connecting cavity, and two groups of springs arranged upper and lower are fixed on the outer side surface of the fixed plate and the side surface of the movable cavity.

[0006] Preferably, a movable groove arranged in an arc shape is provided on the connecting cavity, the connecting rod passes through the movable groove, and the movable groove, the gear and the connecting shaft are coaxial.

[0007] Preferably, the connecting rod is L-shaped, the bottom of the vertical end of the connecting rod is fixedly connected to the tooth plate, and the horizontal end of the connecting rod is located at the top of the backrest.

[0008] Preferably, a headrest is further provided on the top of the backrest.

[0009] Preferably, a track is provided under the seat cushion.

[0010] Preferably, when the backrest is horizontal, the top surface and the top surface of the seat cushion are located at the same horizontal plane.

[0011] The utility model adopts the above structure to achieve the following beneficial effects: by pulling the connecting rod to drive the fixed plate and the tooth plate to move, the spring is stretched, and at the same time the tooth plate is moved away from the gear, and the backrest is rotated to a horizontal position. The connecting rod is loosened and the tooth plate and the gear are engaged under the action of the spring's own restoring force, and the angle of the backrest is fixed, realizing the function of flattening backwards, forming a plane similar to a bed, greatly improving the resting conditions, allowing passengers to stretch their bodies, relieve travel fatigue, and effectively improving the comfort and convenience of riding. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a structural diagram of a rear reclining mechanism proposed by the present invention;

[0013] Figure 2 This is a diagram of the state of a rear reclining seat folding mechanism proposed in the present invention when folded flat;

[0014] Figure 3 for Figure 2 A partial enlarged view of point A in the middle;

[0015] Figure 4 This is a side view of a rear reclining mechanism proposed in the present invention when it is folded flat;

[0016] Figure 5 for Figure 4 A partial enlarged view of point B in the middle;

[0017] Figure 6 This is a schematic diagram of the overall structure of a rear reclining chair folding mechanism proposed by the present invention.

[0018] Among them, 1. seat cushion, 2. backrest, 3. connecting shaft, 4. connecting chamber, 5. gear, 6. gear plate, 7. connecting assembly, 8. connecting rod, 9. movable chamber, 10. spring, 11. fixed plate, 12. headrest, 13. track, 14. movable slot. DETAILED DESCRIPTION

[0019] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be noted that the terms "center," "up," "down," "left," "right," "vertical," "horizontal," "inside," and "outside" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for the purpose of facilitating the description of the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The present invention will be further described below in conjunction with the accompanying drawings.

[0021] like Figure 1-6 As shown, the utility model proposes a rear reclining mechanism, which includes a seat cushion 1 and a backrest 2. The backrest 2 is rotatably arranged on the seat cushion 1. A connecting shaft 3 is fixed to the bottom of the backrest 2. A connecting cavity 4 is provided on one side of the seat cushion 1. The connecting shaft 3 passes through the connecting cavity 4 and is rotatably arranged on the seat cushion 1. A gear 5 is fixed on the connecting shaft 3. An arc-shaped tooth plate 6 is meshed on the gear 5, and a connecting component 7 is provided on the tooth plate 6.

[0022] like Figure 3 、 4 As shown in Figures 5 and 6, the connecting assembly 7 includes a connecting rod 8 and a movable cavity 9. The movable cavity 9 is provided on one side of the backrest 2. The connecting rod 8 passes through the movable cavity 9 and extends out of the upper and lower ends of the backrest 2. The bottom end of the connecting rod 8 is fixedly connected to the tooth plate 6. A fixed plate 11 is fixed on the connecting rod 8 located in the connecting cavity 4. Two groups of springs 10 are fixed on the outer side surface of the fixed plate 11 and the side surface of the movable cavity 9. A movable groove 14 arranged in an arc shape is provided on the connecting cavity 4. The connecting rod 8 passes through the movable groove 14. The movable groove 14, the gear 5 and the connecting shaft 3 are coaxial, so that the connecting rod 8 and the tooth plate 6 rotate around the connecting shaft 3 to adjust the angle of the backrest 2.

[0023] The connecting rod 8 is L-shaped, and the bottom of the vertical end of the connecting rod 8 is fixedly connected to the tooth plate 6. The horizontal end of the connecting rod 8 is located at the top of the backrest 2. By pulling the connecting rod 8, the fixed plate 11 and the tooth plate 6 are moved, and the spring 10 is stretched. At the same time, the tooth plate 6 is moved away from the gear 5, and the backrest 2 is rotated to a suitable angle. The connecting rod 8 is released, and the tooth plate 6 and the gear 5 are engaged under the action of the restoring force of the spring 10 itself, thereby fixing the angle of the backrest 2.

[0024] like Figure 6 As shown, a headrest 12 is provided on the top of the backrest 2 for resting the head and increasing comfort. A track 13 is provided under the seat cushion 1, and the seat cushion 1 can move on the track 13. When the backrest 2 needs to be laid flat, the seat cushion 1 is moved in front of the track 13 to provide enough space for the backrest 2 to be laid flat.

[0025] When the backrest 2 is horizontal, the top surface and the top surface of the seat cushion 1 are located at the same level, so that the seat can be completely laid flat, making it more comfortable to use.

[0026] During specific use, when the seat is laid flat, the seat is first moved forward as a whole. The technology for moving the seat on the track 13 belongs to the existing technology and will not be elaborated here. When the backrest 2 is laid flat, the connecting rod 8 is pulled upward to drive the fixed plate 11 and the tooth plate 6 to move. The spring 10 is stretched and the tooth plate 6 is moved away from the gear 5. The backrest 2 is rotated to a suitable angle. At this time, the connecting rod 8 rotates relatively in the movable groove 14, and the tooth plate 6 also rotates relatively. When the top surface of the backrest 2 and the top surface of the seat cushion 1 are on the same horizontal plane, the connecting rod 8 abuts against the bottom of the movable groove 14. The connecting rod 8 is released, and the tooth plate 6 and the gear 5 are meshed under the action of the spring 10's own restoring force, and the angle of the backrest 2 is fixed to form a plane similar to a bed, which greatly improves the rest conditions and effectively improves the comfort and convenience of riding.

[0027] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A rear reclining mechanism, characterized by: The invention comprises a seat cushion (1) and a backrest (2), wherein the backrest (2) is rotatably mounted on the seat cushion (1), a connecting shaft (3) is fixed to the bottom of the backrest (2), a connecting cavity (4) is provided on one side of the seat cushion (1), the connecting shaft (3) passes through the connecting cavity (4) and is rotatably mounted on the seat cushion (1), a gear (5) is fixed on the connecting shaft (3), an arc-shaped tooth plate (6) is meshed on the gear (5), and a connecting assembly (7) is provided on the tooth plate (6).

2. The rear reclining mechanism according to claim 1, characterized in that: The connecting assembly (7) includes a connecting rod (8) and a movable cavity (9), wherein the movable cavity (9) is provided on one side of the backrest (2), the connecting rod (8) passes through the movable cavity (9) and extends out of the upper and lower ends of the backrest (2), the bottom end of the connecting rod (8) is fixedly connected to the tooth plate (6), a fixed plate (11) is fixed on the connecting rod (8) located in the connecting cavity (4), and two groups of springs (10) arranged upper and lower are fixed on the outer side surface of the fixed plate (11) and the side surface of the movable cavity (9).

3. The rear reclining mechanism according to claim 2, characterized in that: The connecting cavity (4) is provided with a movable groove (14) arranged in an arc shape, the connecting rod (8) passes through the movable groove (14), and the movable groove (14), the gear (5) and the connecting shaft (3) are coaxial.

4. The rear reclining mechanism according to claim 3, characterized in that: The connecting rod (8) is L-shaped, the bottom of the vertical end of the connecting rod (8) is fixedly connected to the tooth plate (6), and the horizontal end of the connecting rod (8) is located on the top of the backrest (2).

5. The rear reclining mechanism according to claim 4, characterized in that: A headrest (12) is also provided on the top of the backrest (2).

6. The rear reclining mechanism according to claim 5, characterized in that: A track (13) is also provided under the seat cushion (1).

7. The rear reclining mechanism according to claim 6, characterized in that: When the backrest (2) is horizontal, the top surface and the top surface of the seat cushion (1) are located on the same horizontal plane.

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