Seat with back-and-forth double-gear adjustment function and adjustment method

Abstract

The invention relates to the technical field of automobile accessories, in particular to a seat with a backrest capable of being adjusted front and back and an adjusting method.The seat comprises a supporting frame, a seat body and an adjusting backrest, and the adjusting backrest comprises a rotating shaft, a seat frame connecting plate, a locking gear, an unlocking device and the backrest; the supporting frame supports the seat and the adjusting backrest, and the backrest is locked with the seat frame connecting plate through the lock gear and fixed to the seat. When the backrest is turned backwards to be adjusted, a passenger pushes the backrest backwards with the hand to drive the seat frame connecting plate to rotate around the rotating shaft, so that the backrest rotates backwards and is laid flat, and the passenger can lie down to have a rest; when the backrest is turned over and adjusted forwards, a passenger pulls the unlocking device through the hand, the lock gear is rotated and unlocked on the seat frame connecting plate, the backrest is rotated forwards and folded on the seat, a passenger on the rear seat can place the two legs, the backrest can be turned over and adjusted freely in the front direction and the rear direction, and the backrest can be better attached to the human body; and the comfort level of passengers can be obviously improved.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile accessories, and in particular to a seat with a backrest capable of front and rear dual-stage adjustment and an adjustment method. Background Art

[0002] Early car seat designs were relatively simple, primarily to meet basic riding needs. Typically, the backrest locks of known car seats only allow the backrest to be locked in one position.

[0003] With the development of the automotive industry and the improvement of people's demand for travel quality, passengers hope to have a more comfortable sitting posture in the car. For example, on long-distance trips, different passengers have different requirements for the tilt angle of the seat back. Summary of the Invention

[0004] The purpose of the present invention is to provide a seat with a backrest that can be adjusted in two gears, front and back, and an adjustment method, in order to solve the problem that the car seat back can only be locked in one gear and cannot meet the passenger's demand for the seat back tilt angle.

[0005] To achieve the above-mentioned objectives, in the first aspect, the present invention provides a seat with a backrest that can be adjusted in two gears forward and backward, comprising a support frame, a seat and an adjustable backrest, the seat being assembled on the top of the support frame, the adjustable backrest being arranged on one side of the adjustable backrest, the adjustable backrest comprising a rotating shaft, a seat frame link plate, a locking gear, an unlocker and a backrest; the rotating shaft is fixedly connected to the seat and is located on one side of the seat, the seat frame link plate is rotatably connected to the rotating shaft and is located on one side of the rotating shaft, the backrest is rotatably arranged on the top of the seat frame link plate, the unlocker is assembled on one side of the backrest, and the lock gear is arranged between the unlocker and the seat frame link plate.

[0006] Among them, the unlocker includes a pull rope, a rotating plate, a zipper and an unlocking piece. The rotating plate is rotatably arranged on one side of the backrest. The pull rope is fixedly connected to the rotating plate and is located on one side of the rotating plate. The zipper is assembled on one side of the rotating plate. The unlocking piece is arranged on one side of the lock gear and is connected to the pull rope.

[0007] The rotating plate includes a rotating center and a connecting plate. The rotating center is rotatably connected to the backrest and is located on one side of the backrest. The connecting plate is fixedly connected to the rotating center and is located on the side of the rotating center away from the backrest.

[0008] Wherein, the unlocking member includes an unlocking block and a pulling block, the unlocking block is arranged on one side of the lock gear, the unlocking block is rotatably connected to the backrest and is located on one side of the backrest, and the pulling block is assembled on one side of the unlocking block.

[0009] Wherein, the support frame includes a support frame body and a mounting plate, the support frame body is fixedly connected to the seat and is located at the bottom of the seat, and the mounting plate is fixedly connected to the support frame body and is located on the side of the support frame body away from the seat.

[0010] In a second aspect, the present invention further provides a seat adjustment method with a backrest that can be adjusted in two stages, the method being applied to the seat with a backrest that can be adjusted in two stages as described in the first aspect, comprising the following steps:

[0011] The backrest is locked to the seat through a locking gear and the seat frame link plate;

[0012] When the backrest is tilted backward, the passenger pushes the backrest backward with his hands, driving the seat frame link plate to rotate around the rotation axis, so that the backrest rotates backward and lies flat;

[0013] When the backrest is tilted forward for adjustment, the passenger pulls the unlocker by hand to rotate the lock gear on the seat frame link plate and unlock it, so that the backrest is rotated forward and folded.

[0014] The invention relates to a seat with a backrest that is adjustable in two gears, the support frame providing support for the seat and the adjustable backrest, the backrest of the adjustable backrest being locked with the seat frame link plate by the locking gear and fixed to the seat; when the backrest is flipped and adjusted backward, the passenger pushes the backrest backward with his hands, driving the seat frame link plate to rotate around the rotating shaft, so that the backrest is rotated backward and laid flat for the passenger to lie down and rest; when the backrest is flipped and adjusted forward, the passenger pulls the unlocking device with his hands to rotate and unlock the locking gear on the seat frame link plate, so that the backrest is rotated forward and folded on the seat, so that the rear passenger can place his legs. The adjustable backrest can be freely flipped and adjusted in both the forward and backward directions, so that the adjustable backrest can fit the human body better, significantly improving the passenger comfort, and solving the problem that the car seat backrest can be locked in only one gear and cannot meet the passenger's demand for the seat backrest inclination angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 The present invention provides a structural diagram of a seat with a backrest that can be adjusted in two stages, front and back.

[0017] Figure 2The figure is a side view of a seat with a backrest that can be adjusted in two stages, front and back, provided by the present invention.

[0018] Figure 3 yes Figure 1 Enlarged view of detail A.

[0019] Figure 4 It is a structural schematic diagram of another direction of a seat with a backrest that can be adjusted in two stages forward and backward provided by the present invention.

[0020] Figure 5 yes Figure 4 Enlarged view of detail B.

[0021] Figure 6 This is a flow chart of a method for adjusting a seat with a backrest that can be adjusted in two stages.

[0022] In the figure: 1-support frame, 2-seat, 3-adjustable backrest, 4-rotation shaft, 5-seat frame link plate, 6-locking gear, 7-unlocker, 8-backrest, 9-pull rope, 10-rotation plate, 11-zipper, 12-unlocking member, 13-rotation center, 14-connecting plate, 15-unlocking block, 16-pull block, 17 support frame body, 18-mounting plate. DETAILED DESCRIPTION

[0023] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0024] See also Figures 1 to 5 In the first aspect, the present invention provides a seat with a backrest that can be adjusted in two gears forward and backward, comprising a support frame 1, a seat 2 and an adjustable backrest 3, wherein the seat 2 is assembled on the top of the support frame 1, and the adjustable backrest 3 is arranged on one side of the seat 2, and the adjustable backrest 3 comprises a rotating shaft 4, a seat frame link plate 5, a locking gear 6, an unlocker 7 and a backrest 8; the rotating shaft 4 is fixedly connected to the seat 2 and is located on one side of the seat 2, the seat frame link plate 5 is rotatably connected to the rotating shaft 4 and is located on one side of the rotating shaft 4, the backrest 8 is rotatably arranged on the top of the seat frame link plate 5, the unlocker 7 is assembled on one side of the backrest 8, and the locking gear 6 is arranged between the unlocker 7 and the seat frame link plate 5.

[0025] In an embodiment of the present invention, the support frame 1 provides support for the seat 2 and the adjustable backrest 3. The backrest 8 of the adjustable backrest 3 is locked with the seat frame link plate 5 by the locking gear 6 and fixed to the seat 2. When the backrest 8 is flipped backward, the passenger pushes the backrest 8 backward with his hand to drive the seat frame link plate 5 to rotate around the rotating shaft 4, so that the backrest 8 is rotated backward and laid flat for the passenger to lie down and rest. When the backrest 8 is flipped forward, the passenger pulls the unlocker 7 by hand to rotate and unlock the locking gear 6 on the seat frame link plate 5, so that the backrest 8 is rotated forward and folded on the seat 2 for the rear seat passengers to place their legs. The adjustable backrest 3 can be freely flipped and adjusted in both the forward and backward directions, so that the adjustable backrest 3 can fit the human body better, significantly improve the passenger comfort, and solve the problem that the car seat backrest can only be locked in one gear and cannot meet the passenger's demand for the seat backrest tilt angle.

[0026] Furthermore, the unlocker 7 includes a pull rope 9, a rotating plate 10, a zipper 11 and an unlocking member 12. The rotating plate 10 is rotatably arranged on one side of the backrest 8. The pull rope 9 is fixedly connected to the rotating plate 10 and is located on one side of the rotating plate 10. The zipper 11 is assembled on one side of the rotating plate 10. The unlocking member 12 is arranged on one side of the locking gear 6 and is connected to the pull rope 9.

[0027] In an embodiment of the present invention, the passenger pulls the pull rope 9 with his hand to pull the rotating plate 10, and the rotating plate 10 rotates to pull the zipper 11, and the zipper 11 pulls the unlocking member 12, so that the locking gear 6 rotates and unlocks on the seat frame link plate 5, thereby causing the backrest 8 to rotate forward and fold onto the seat 2, allowing the rear seat passenger to place their legs.

[0028] Furthermore, the rotating plate 10 includes a rotation center 13 and a connecting plate 14. The rotation center 13 is rotationally connected to the backrest 8 and is located on one side of the backrest 8. The connecting plate 14 is fixedly connected to the rotation center 13 and is located on the side of the rotation center 13 away from the backrest 8.

[0029] In the embodiment of the present invention, the setting of the rotation center 13 allows the connecting plate 14 to rotate on the backrest 8 , and the rotation of the connecting plate 14 pulls the zipper 11 .

[0030] Furthermore, the unlocking member 12 includes an unlocking block 15 and a pulling block 16. The unlocking block 15 is arranged on one side of the locking gear 6. The unlocking block 15 is rotatably connected to the backrest 8 and is located on one side of the backrest 8. The pulling block 16 is assembled on one side of the unlocking block 15.

[0031] In the embodiment of the present invention, the zipper 11 pulls the pulling block 16 , and the pulling block 16 pulls the unlocking block 15 to rotate, thereby driving the locking gear 6 to rotate on the seat frame link plate 5 and unlock.

[0032] Furthermore, the support frame 1 includes a support frame body 17 and a mounting plate 18. The support frame body 17 is fixedly connected to the seat 2 and is located at the bottom of the seat 2. The mounting plate 18 is fixedly connected to the support frame body 17 and is located on the side of the support frame body 17 away from the seat 2.

[0033] In the embodiment of the present invention, the support frame body 17 provides support for the seat 2 and the adjustable backrest 3, and the mounting plate 18 is used to connect the support frame body 17 to the vehicle compartment and install the support frame body 17 in the vehicle compartment.

[0034] See also Figure 6 In a second aspect, the present invention further provides a seat adjustment method with a backrest that can be adjusted in two stages, the method being applied to the seat with a backrest that can be adjusted in two stages as described in the first aspect, and comprising the following steps:

[0035] S1 The backrest 8 is locked to the seat frame link plate 5 through the locking gear 6 and fixed to the seat 2;

[0036] In the embodiment of the present invention, the locking gear 6 is engaged with the seat frame link plate 5 , thereby locking the backrest 8 to the seat frame link plate 5 , that is, fixing the backrest 8 on the seat 2 .

[0037] When the backrest 8 is tilted backward, the passenger pushes the backrest 8 backward with his hands, driving the seat frame link plate 5 to rotate around the rotation axis 4, so that the backrest 8 rotates backward and is laid flat;

[0038] In the embodiment of the present invention, the passenger pushes the backrest 8 backward with his hands, driving the seat frame link plate 5 to rotate around the rotation axis 4, so that the backrest 8 rotates backward and lies flat for the passenger to lie down and rest.

[0039] When the backrest 8 is tilted forward for adjustment, the passenger pulls the unlocker 7 by hand to rotate and unlock the locking gear 6 on the seat frame link plate 5, so that the backrest 8 is rotated forward and folded.

[0040] In an embodiment of the present invention, the passenger pulls the pull rope 9 with his hand to pull the connecting plate 14, and the connecting plate 14 rotates on the backrest 8 under the action of the rotation center 13. The connecting plate 14 rotates to pull the zipper 11, so that the zipper 11 moves to pull the pull block 16, and the pull block 16 moves to pull the unlocking block 15 to rotate, thereby driving the locking gear 6 to rotate and unlock on the seat frame link plate 5, so that the backrest 8 rotates forward and folds on the seat 2, so that the rear seat passengers can place their legs.

[0041] The above disclosure is only a preferred embodiment of a seat with a backrest that can be adjusted in two stages, front and back, and an adjustment method of the present invention. Of course, this cannot be used to limit the scope of the rights of the present invention. Ordinary technicians in this field can understand that implementing all or part of the processes of the above embodiment and making equivalent changes in accordance with the claims of the present invention still fall within the scope of the invention.

Claims

1. A seat with a backrest that can be adjusted in two steps, characterized in that ； It includes a support frame, a seat and an adjustable backrest, wherein the seat is assembled on the top of the support frame, the adjustable backrest is arranged on one side of the adjustable backrest, and the adjustable backrest includes a rotating shaft, a seat frame link plate, a locking gear, an unlocker and a backrest; The rotating shaft is fixedly connected to the seat and is located on one side of the seat. The seat frame link plate is rotatably connected to the rotating shaft and is located on one side of the rotating shaft. The backrest is rotatably arranged on the top of the seat frame link plate. The unlocker is assembled on one side of the backrest. The lock gear is arranged between the unlocker and the seat frame link plate.

2. The seat with a backrest that can be adjusted in two steps forward and backward as claimed in claim 1, characterized in that ； The unlocker includes a pull rope, a rotating plate, a zipper and an unlocking piece. The rotating plate is rotatably arranged on one side of the backrest. The pull rope is fixedly connected to the rotating plate and is located on one side of the rotating plate. The zipper is assembled on one side of the rotating plate. The unlocking piece is arranged on one side of the lock gear and is connected to the pull rope.

3. The seat with a backrest that can be adjusted in two steps forward and backward as claimed in claim 2, characterized in that ； The rotating plate includes a rotating center and a connecting plate. The rotating center is rotatably connected to the backrest and is located on one side of the backrest. The connecting plate is fixedly connected to the rotating center and is located on a side of the rotating center away from the backrest.

4. The seat with a backrest that can be adjusted in two steps forward and backward as claimed in claim 2, characterized in that ； The unlocking member includes an unlocking block and a pulling block. The unlocking block is arranged on one side of the lock gear. The unlocking block is rotatably connected to the backrest and is located on one side of the backrest. The pulling block is assembled on one side of the unlocking block.

5. The seat with a backrest that can be adjusted in two steps forward and backward as claimed in claim 1, characterized in that ； The support frame includes a support frame body and a mounting plate. The support frame body is fixedly connected to the seat and is located at the bottom of the seat. The mounting plate is fixedly connected to the support frame body and is located at a side of the support frame body away from the seat.

6. A seat adjustment method with a backrest that can be adjusted in two stages, applied to a seat with a backrest that can be adjusted in two stages as claimed in any one of claims 1 to 5, characterized in that: The following steps are involved: The backrest is locked to the seat through a locking gear and the seat frame link plate; When the backrest is tilted backward, the passenger pushes the backrest backward with his hands, driving the seat frame link plate to rotate around the rotation axis, so that the backrest rotates backward and lies flat; When the backrest is tilted forward for adjustment, the passenger pulls the unlocker by hand to rotate the lock gear on the seat frame link plate and unlock it, so that the backrest is rotated forward and folded.

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