A reversible rear seat for a car

Abstract

The present application relates to a flippable rear seat for a car, comprising a backrest frame, a seat cushion frame, and a support leg. A reinforcing link is provided on the side of the seat cushion frame near the backrest frame. The seat cushion frame is hinged to the backrest frame via the reinforcing link. A limit lock device is provided between the reinforcing link and the backrest frame. The limit lock device is used to lock the reinforcing link in a limited position after the seat cushion frame drives the reinforcing link toward the backrest frame. The support leg is provided on the side of the bottom of the seat cushion frame away from the backrest frame. The support leg is hinged to the seat cushion frame. A restraint device is provided on the side of the bottom of the seat cushion frame near the support leg. The restraint device is used to lock the support leg in a limited position after the support leg is flipped toward the bottom of the seat cushion frame. The present application allows the rear seat to be folded backward, increasing the space for adjusting the front-to-back distance of the rear seat and effectively removing the restrictions on the front-to-back adjustment distance.

Description

Technical Field

[0001] The present application relates to the field of automobile seat adjustment devices, and in particular to a flippable rear seat of an automobile. Background Art

[0002] Cars have become an essential means of transportation in people's lives, and car seats need to be adjusted according to different usage needs. Especially for some MPV models, the comfort and adjustability of the rear seats directly affect the riding comfort experience of the passengers.

[0003] The current traditional flip-up car rear seat structure, such as the secondary folding mechanism of the rear seat of a car with Chinese patent publication number CN202193003U, is provided with a hinge at the connection between the seat cushion frame and the backrest frame of the single seat or double seat, and a hinge at the connection between the seat cushion frame and the vehicle floor of the single seat or double seat. This structure can increase the space of the car trunk in both the length and height directions, thereby meeting the needs of placing different items and increasing the effective utilization space of the car trunk.

[0004] However, the inventor of this structure believes that most rear seats are designed to increase the storage space in the trunk after the seat backs are flipped forward. However, for some MPV models, although the storage space in the trunk is important, it is slightly less important for the riding space. If the rear seats are flipped forward for the riding space, the distance between the front and the back is still limited, making it impossible to adjust the riding space well. Summary of the Invention

[0005] In order to enable the rear seats to be folded backward and placed, increase the adjustable space of the front and rear distance of the rear seats, and effectively remove the limitation of the front and rear adjustment distance, the present application provides a flippable rear seat for a car.

[0006] The present application provides a reversible rear seat for a car, which adopts the following technical solution:

[0007] A flippable rear seat for a car comprises a backrest frame, a seat cushion frame and a support leg. A reinforcing link is provided on the side of the seat cushion frame close to the backrest frame. The seat cushion frame is hinged to the backrest frame through the reinforcing link. A limit lock device is provided between the reinforcing link and the backrest frame. The limit lock device is used for the seat cushion frame to drive the reinforcing link toward the backrest frame and lock the limit position; the support leg is provided on the side of the bottom of the seat cushion frame away from the backrest frame, the support leg is hinged to the seat cushion frame, and a restraint device is provided on the side of the bottom of the seat cushion frame close to the support leg. The restraint device is used for locking the support leg toward the bottom direction of the seat cushion frame after it is flipped.

[0008] Optionally, the limit lock device includes a locking mechanism fixed to the backrest frame and a limit piece arranged on an end portion of the reinforcing connecting rod near the backrest frame. The locking mechanism includes a locking plate fixed to the backrest frame and a linkage lever. The linkage lever is V-shaped, and the middle part of the linkage lever is hinged to the locking plate. One end of the linkage lever is connected to an unlocking rope and the other end is provided with a stop pin. An arc-shaped guide hole is provided at a position on the locking plate that matches the stop pin, and the stop pin and the limit piece are in contact with each other.

[0009] Optionally, the limiting member is an eccentric wheel arranged at one end of the reinforcing connecting rod close to the backrest frame, and a misalignment is formed between one end of the eccentric wheel and the reinforcing connecting rod, and a stop pin limiting groove is formed at the misalignment; the hinge position of the reinforcing connecting rod and the backrest frame is located at the eccentric wheel.

[0010] Optionally, a torsion spring is provided on the hinge shaft between the linkage lever and the locking plate, one end of the torsion spring is provided on the locking plate, and the other end is provided on a side of the linkage lever close to the unlocking rope.

[0011] Optionally, a mounting truss is provided on one side of the bottom of the cushion frame close to the supporting leg, and the restraint device is installed on the mounting truss. The restraint device includes a clamping base fixed to the mounting truss and two oppositely arranged clamping wheels made of rubber material, and the clamping wheels are arranged at the end of the clamping base away from the mounting truss.

[0012] Optionally, the clamping base includes a mounting substrate and two inclined clamping substrates, the distance between the two clamping substrates gradually decreases in the direction away from the mounting substrate, and the clamping wheels are respectively arranged at one end of the clamping substrate away from the mounting substrate.

[0013] Optionally, the support leg includes two vertically arranged support vertical rods and a support cross rod connecting the two support vertical rods. The support cross rod is located on the side away from the seat cushion frame. The two support vertical rods are hinged to the bottom of the seat cushion frame. The support cross rod rotates toward the bottom of the seat cushion frame with the two support vertical rods and can be clamped between the two clamping wheels.

[0014] Optionally, a ground anchor bracket mounted on the vehicle body is provided below the support leg, and a sliding locking device is hinged at the lower end of the support leg and can slide back and forth along the ground anchor bracket.

[0015] Optionally, a front sliding section, a middle locking guide section, and a rear sliding section are provided in the anchor fixing frame, the front sliding section includes a first inclined section and a first straight section, the first inclined section is provided on the side of the first straight section away from the rear sliding section, the middle locking guide section includes a locking groove connected to the first straight section, and a second inclined section connected to the locking groove, and the rear sliding section includes a second straight section connected to the second inclined section.

[0016] Optionally, the sliding locking device includes a sliding seat hinged to the lower end of the supporting leg, a guide vertical hole is vertically arranged in the middle of the sliding seat, the sliding seat is provided with a locking pin shaft that can slide vertically along the guide vertical hole, and a reset spring is arranged between the locking pin shaft and the bottom of the sliding seat.

[0017] In summary, this application includes at least one of the following beneficial technical effects:

[0018] 1. By setting the limit lock device and the restraint device, the support leg can be folded backward to the lower end surface of the seat cushion frame and locked by the restraint device. Then the seat cushion frame can be folded toward the backrest frame and locked by the limit lock device, so that the area occupied by the original seat cushion frame is vacated, making the adjustable space in the rear row larger and the adjustment space of the nearby seats more spacious; the rear seats can be folded backward and placed, increasing the adjustable space of the front and rear distance of the rear seats, and effectively removing the restrictions on the front and rear adjustment distance.

[0019] 2. Through the design of the limit lock device, the eccentric wheel can be in contact with the stop pin and rotate as the seat cushion frame rotates until the stop pin slides to the stop pin limit slot. At this time, the positions of the seat cushion frame and the backrest frame are relatively stable, reaching a locked state. If unlocking is required, the unlocking rope can be used to drive the linkage lever, and the linkage lever drives the stop pin out of the stop pin limit slot, and the seat cushion frame can be reset at this time.

[0020] 3. Through the design of the restraint device, after the support leg is rotated toward the bottom of the cushion frame, the support cross bar of the support leg can be clamped and fixed between the clamping wheels. If the support leg needs to be reset, it only needs to apply a slight external force to make the support cross bar break away from the clamping force of the clamping wheels.

[0021] 4. Through the setting of the ground anchor bracket and the sliding locking device, compared with the inherent thinking of the support leg fixing method of many seats with seat cushion flip-up function on the market, this application breaks through the traditional thinking, adds a joint, and abandons the structure of the traditional lock, so that the support leg has higher stability. When the support leg is in the reset state, the support leg can be locked between the sliding locking device and the ground anchor bracket, effectively preventing unnecessary movement of the support leg, and when the support leg needs to be flipped over, it can be unlocked through the sliding locking device, which can make the sliding locking device slide out along the ground anchor bracket, effectively improving the convenience of locking and unlocking the support leg, improving the use efficiency, and also making the user experience better. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a flippable rear seat of a car according to an embodiment of the present application.

[0023] Figure 2It is a structural diagram of the cooperation between the seat cushion frame and the limit lock device of a flippable rear seat of a car in an embodiment of the present application.

[0024] Figure 3 This is a schematic structural diagram of the seat cushion frame and support legs of a flippable rear car seat in an embodiment of the present application.

[0025] Figure 4 It is a structural schematic diagram of a restraint device for a flippable rear seat of a car according to an embodiment of the present application.

[0026] Figure 5 It is a structural schematic diagram of a flip-up car rear seat footrest fixing frame and a sliding locking device according to an embodiment of the present application.

[0027] Figure 6 It is a structural schematic diagram of a flip-up car rear seat anchor bracket according to an embodiment of the present application.

[0028] Explanation of the reference numerals: 1. Backrest frame; 2. Cushion frame; 3. Reinforced connecting rod; 4. Locking plate; 5. Linkage lever; 6. Unlocking rope; 7. Stop pin; 8. Guide hole; 9. Eccentric wheel; 10. Stop pin limiting groove; 11. Connecting plate; 12. Fixed support; 13. Support vertical rod; 14. Support horizontal rod; 15. Support leg mounting seat; 16. Mounting truss; 17. Clamping wheel; 18. Mounting base plate; 19. Elastic support plate; 20. Clamping Wheel mounting plate; 21. First inclined section; 22. First straight section; 23. Locking groove; 24. Second inclined section; 25. Second straight section; 26. Anchor mounting plate; 27. Anchor support plate; 28. First straight connecting plate; 29. First vertical connecting plate; 30. Guide vertical hole; 31. Locking pin; 32. Lower straight connecting plate; 33. Sliding bottom plate; 34. Sliding side plate; 35. Second straight connecting plate; 36. Second vertical connecting plate. DETAILED DESCRIPTION

[0029] The following is combined with Figures 1 to 6 This application is described in further detail.

[0030] The embodiment of the present application discloses a reversible rear seat for a car. Figure 1 、 2, including a backrest frame 1, a seat cushion frame 2 and a supporting leg, wherein a reinforcing link 3 is provided on the side of the seat cushion frame 2 close to the backrest frame 1, the seat cushion frame 2 is hinged to the backrest frame 1 through the reinforcing link 3, and a limit lock device is provided between the reinforcing link 3 and the backrest frame 1. The limit lock device is used for the seat cushion frame 2 to drive the reinforcing link 3 to flip toward the backrest frame 1 and then lock the limit. In this embodiment, in order to facilitate the installation of the limit lock and make the internal structural layout more reasonable, a fixing support 12 for installing the limit lock device can be installed on the backrest frame 1.

[0031] The above-mentioned limit lock device includes a locking mechanism fixed to the backrest frame 1 and a limit piece arranged at one end of the reinforcing connecting rod 3 close to the backrest frame 1. The limit piece cooperates with the locking mechanism to realize the locking limit of the seat cushion frame 2 after it is flipped toward the backrest frame 1; wherein, the locking mechanism includes a locking plate 4 fixed to the backrest frame 1 and a linkage lever 5. The linkage lever 5 is V-shaped. The middle part of the linkage lever 5 (i.e., the top angle position of the V-shaped structure) is hinged to the locking plate 4. One end of the linkage lever 5 is connected to an unlocking pull rope 6, and the other end is connected to an unlocking pull rope 6. A stop pin 7 is provided at one end, and an arc-shaped guide hole 8 is provided at a position on the locking plate 4 that matches the stop pin 7, and the stop pin 7 is abutted against the limit piece; and the limit piece is an eccentric wheel 9 provided at one end of the reinforcing link 3 close to the backrest frame 1, and a misalignment is formed between one end of the eccentric wheel 9 and the reinforcing link 3, and a stop pin limit groove 10 is formed at the misalignment, and the end of the eccentric wheel 9 opposite to the stop pin limit groove 10 has a smooth transition to the reinforcing link 3; the hinge position of the reinforcing link 3 and the backrest frame 1 is located at the eccentric wheel 9.

[0032] In this embodiment, there are two locking plates 4, which are connected by a connecting plate 11, and the whole structure is N-shaped. The linkage lever 5 is arranged on the outer wall of the locking plate 4 away from the backrest frame 1, and the two locking plates 4 are provided with corresponding guide holes 8. The stop pins 7 pass through the guide holes 8 in sequence. The limiter is located between the two locking plates 4, and the limiter abuts against the stop pin 7 between the two locking plates 4. At the same time, in order to ensure that the stop pin 7 can be reset in time, a torsion spring (not shown in the figure) is provided on the hinge axis of the linkage lever 5 and the locking plate 4. One end of the torsion spring is provided on the locking plate 4, and the other end is provided on the side of the linkage lever 5 close to the unlocking rope 6.

[0033] In this embodiment, refer to Figure 3 、 4The support leg is arranged on the side of the bottom of the seat cushion frame 2 away from the backrest frame 1, and is hinged between the support leg and the seat cushion frame 2. The support leg includes two vertical support vertical rods 13 and a support cross rod 14 connecting the two support vertical rods 13. The support cross rod 14 is located on the side away from the seat cushion frame 2, and the two support vertical rods 13 are hinged to the bottom of the seat cushion frame 2; in order to better install the support leg at the bottom of the seat cushion frame 2, a support leg mounting seat 15 is provided at the bottom of the seat cushion frame 2, and the support leg is hinged to the support leg mounting seat 15.

[0034] In order to lock and limit the support leg after the support leg rotates toward the bottom of the seat cushion frame 2, a restraint device is provided on the side of the bottom of the seat cushion frame 2 close to the support leg. The restraint device is used to lock and limit the support leg after it is flipped toward the bottom direction of the seat cushion frame 2. In addition, in order to better install and fix the restraint device, a mounting truss 16 can be provided on the side of the bottom of the seat cushion frame 2 close to the support leg, and the restraint device is installed on the mounting truss 16. The restraint device includes a clamping base fixed to the mounting truss 16 and two oppositely arranged clamping wheels 17 made of rubber material. The clamping wheel 17 is provided at the end of the clamping base away from the mounting truss 16. The support cross bar 14 rotates toward the bottom direction of the seat cushion frame 2 with the two support vertical bars 13 and can be clamped between the two clamping wheels 17.

[0035] The clamping base mentioned above includes a mounting substrate 18 and two inclined clamping substrates, the distance between the two clamping substrates gradually decreases in the direction away from the mounting substrate 18, and the clamping wheels 17 are respectively arranged at one end of the clamping substrate away from the mounting substrate 18; wherein, the clamping substrate includes an elastic support plate 19 and two oppositely arranged clamping wheel mounting plates 20, the clamping wheel mounting plate 20 is arranged on the side of the elastic support plate 19 away from the mounting base, and the clamping wheel 17 is installed between the two clamping wheel mounting plates 20.

[0036] In this embodiment, after the support legs can be rotated, it is necessary to further solve the problem of locking and unlocking the support legs during use. Figure 5 、 6 Therefore, a ground anchor bracket mounted on the car body is provided under the supporting leg, and the lower end of the supporting leg is hinged with a sliding locking device that can slide back and forth along the ground anchor bracket.

[0037] Among them, the anchor fixing frame is provided with a front sliding section, a middle locking guide section, and a rear sliding section. The front sliding section includes a first inclined section 21 and a first straight section 22. The first inclined section 21 is arranged on the side of the first straight section 22 away from the rear sliding section. The middle locking guide section includes a locking groove 23 connected to the first straight section 22 and a second inclined section 24 connected to the locking groove 23. The rear sliding section includes a second straight section 25 connected to the second inclined section 24; in order to better set the above-mentioned segmented structure, the anchor fixing frame includes an anchor mounting plate 26 and two anchor support plates 27. The two anchor support plates 27 are respectively arranged on the left and right sides of the anchor support plate 27, and the two anchor support plates 27 are respectively bent inwardly to provide a first straight connecting plate 28, and the first straight connecting plates 28 are both bent downwardly to provide a first vertical connecting plate 29; the front sliding section, the middle locking guide section, and the rear sliding section are respectively arranged at the lower end edge of the first vertical connecting plate 29.

[0038] When the cam 31 is unlocked, the locking pin 31 is released, and the cam 31 is released to the unlocking position, so that the cam 31 can be unlocked.

[0039] In this embodiment, in order to have a better guide slide structure, there is a certain gap between the lower edge of the first vertical connecting plate 29 and the anchor mounting plate 26; and the lower edge of the first vertical connecting plate 29 that matches the second inclined section 24 and the second straight section 25 is bent outward to provide a lower straight connecting plate 32, and the lower straight connecting plate 32 does not contact the inner wall of the anchor support plate 27; at the same time, the sliding seat includes a sliding bottom plate 33 and two sliding side plates 34. The two sliding side plates 34 are respectively arranged on the left and right sides of the sliding bottom plate 33. The lower edges of the two sliding side plates 34 are bent outward to provide a second straight connecting plate 35. The two second straight connecting plates 35 are both bent downward to provide a second vertical connecting plate 36. The two sliding side plates 34 are respectively provided on the sliding bottom plate through the corresponding second vertical connecting plates 36 33, and the guide vertical holes 30 are respectively arranged on the two sliding side plates 34; after such design, the sliding seat has a T-shaped structure as a whole, and the internal space of the anchor fixing frame also has a T-shaped structure. The sliding seat can realize forward and backward sliding displacement in the anchor fixing frame, and the sliding seat has improved stability in sliding and guiding of the anchor fixing frame. At the same time, in order to enable the locking pin 31 to slide out and slide into the locking groove 23 better, in this embodiment, the connection between the second inclined section 24 and the locking groove 23 has a smooth transition. In addition, the height of the second straight section 25 relative to the anchor mounting plate 26 is less than the height of the first straight section 22 relative to the anchor mounting plate 26. This can ensure that the sliding seat is relatively tightly matched with the anchor fixing frame when sliding out to the rear, and the noise of collision between parts will be reduced accordingly.

[0040] The implementation principle of a flippable rear seat for a car disclosed in this embodiment is as follows: first, the locking pin 31 is pressed downward to make it move downward along the guide vertical hole 30 until the locking pin 31 is disengaged from the locking groove 23, and then a backward force is applied to the support leg, thereby causing the sliding seat to move backward relative to the anchor bracket until the sliding seat is disengaged from the anchor bracket, and then the backward force is continued to be applied to make the support leg continue to rotate around the hinge position between it and the seat frame 2 until the supporting cross bar 14 is stuck between the two clamping wheels 17, and then the seat frame 2 is flipped upward. During the flipping, the eccentric wheel 9 and the stop pin 7 are aligned. When the locking limit state between the seat cushion frame 2 and the backrest frame 1 needs to be unlocked, the unlocking rope 6 can be pulled, and the stop pin 7 will be displaced along the guide hole 8 as the linkage lever 5 rotates, until the stop pin 7 is disengaged from the stop pin limit groove 10, and then the seat cushion frame 2 is flipped downward, and then the supporting cross bar 14 is disengaged from the two clamping wheels 17, and then rotated downward until the sliding seat slides into the anchor fixing frame and the locking pin shaft 31 is stuck in the locking groove 23.

[0041] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A reversible rear seat for a car, comprising a backrest frame (1), a seat cushion frame (2) and support legs, characterized in that: A reinforcing connecting rod (3) is provided on one side of the seat cushion frame (2) close to the backrest frame (1); the seat cushion frame (2) is hinged to the backrest frame (1) through the reinforcing connecting rod (3); a limit lock device is provided between the reinforcing connecting rod (3) and the backrest frame (1); the limit lock device is used for the seat cushion frame (2) to drive the reinforcing connecting rod (3) to flip toward the backrest frame (1) and lock the limit position; a supporting leg is provided on the side of the bottom of the seat cushion frame (2) away from the backrest frame (1); the supporting leg is hinged to the seat cushion frame (2); a restraining device is provided on the side of the bottom of the seat cushion frame (2) close to the supporting leg; the restraining device is used for locking the supporting leg to flip toward the bottom direction of the seat cushion frame (2) and lock the limit position; the limit lock device includes a locking mechanism fixed to the backrest frame (1) and a locking mechanism provided on one end of the reinforcing connecting rod (3) close to the backrest frame (1). The limiting member of the part, the locking mechanism includes a locking plate (4) fixed to the backrest frame (1) and a linkage lever (5), the linkage lever (5) is V-shaped, the middle part of the linkage lever (5) is hinged to the locking plate (4), one end of the linkage lever (5) is connected to the unlocking rope (6), and the other end is provided with a stop pin (7), an arc-shaped guide hole (8) is provided at a position matching the stop pin (7) on the locking plate (4), and the stop pin (7) is in contact with the limiting member; a mounting truss (16) is provided on the side of the bottom of the cushion frame (2) close to the supporting leg, and the restraint device is installed on the mounting truss (16), and the restraint device includes a clamping base fixed to the mounting truss (16) and two clamping wheels (17) made of rubber material arranged oppositely, and the clamping wheel (17) is arranged at one end of the clamping base away from the mounting truss (16).

2. The reversible rear seat of a car according to claim 1, characterized in that: The limiting member is an eccentric wheel (9) arranged at one end of the reinforcing connecting rod (3) close to the backrest frame (1); a misalignment is formed between one end of the eccentric wheel (9) and the reinforcing connecting rod (3); a stop pin limiting groove (10) is formed at the misalignment; the hinge position of the reinforcing connecting rod (3) and the backrest frame (1) is located at the eccentric wheel (9).

3. The reversible rear seat of a car according to claim 1, characterized in that: A torsion spring is provided on the hinge shaft between the linkage lever (5) and the locking plate (4), one end of the torsion spring is provided on the locking plate (4), and the other end is provided on a side of the linkage lever (5) close to the unlocking rope (6).

4. The reversible rear seat of a car according to claim 1, characterized in that: The clamping base comprises a mounting substrate (18) and two inclined clamping substrates, wherein the distance between the two clamping substrates gradually decreases in a direction away from the mounting substrate (18), and the clamping wheels (17) are respectively arranged at one end of the clamping substrate away from the mounting substrate (18).

5. The flippable rear seat of a car according to claim 4, characterized in that: The support leg comprises two vertical support vertical rods (13) and a support cross rod (14) connecting the two support vertical rods (13). The support cross rod (14) is located on a side away from the seat cushion frame (2). The two support vertical rods (13) are hingedly arranged with the bottom of the seat cushion frame (2). The support cross rod (14) rotates toward the bottom of the seat cushion frame (2) along with the two support vertical rods (13) and can be clamped between the two clamping wheels (17).

6. The flippable rear seat of a car according to claim 1, characterized in that: A ground anchor bracket mounted on the vehicle body is provided below the support leg, and a sliding locking device which can slide forward and backward along the ground anchor bracket is hinged at the lower end of the support leg.

7. The flippable rear seat of a car according to claim 6, characterized in that: A front sliding section, a middle locking guide section, and a rear sliding section are provided in the anchor fixing frame. The front sliding section includes a first inclined section (21) and a first straight section (22). The first inclined section (21) is provided on a side of the first straight section (22) away from the rear sliding section. The middle locking guide section includes a locking groove (23) connected to the first straight section (22) and a second inclined section (24) connected to the locking groove (23). The rear sliding section includes a second straight section (25) connected to the second inclined section (24).

8. The flippable rear seat of a car according to claim 7, characterized in that: The sliding locking device comprises a sliding seat hinged to the lower end of the supporting leg, a guide vertical hole (30) is vertically arranged in the middle of the sliding seat, the sliding seat is provided with a locking pin shaft (31) that can slide vertically along the guide vertical hole (30), and a return spring is arranged between the locking pin shaft (31) and the bottom of the sliding seat.

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