Integrated automobile seat leg support

Abstract

The invention discloses an integrated automobile seat leg support which comprises a seat frame, a first driving mechanism and a supporting framework capable of sliding front and back are arranged on the front portion of the seat frame, the supporting framework is used for supporting thighs of a passenger, and the first driving mechanism is used for driving the supporting framework to slide out of the front portion of the seat frame or retract into the seat frame; a second driving mechanism and a shank supporting assembly connected with the supporting framework in an overturning mode are arranged on the front portion of the supporting framework, the shank supporting assembly is used for supporting the shank of the passenger, and the second driving mechanism is used for driving the shank supporting assembly to conduct overturning movement relative to the supporting framework. The leg support has the beneficial effects that through the combined design of the thigh support and the shank support, the legs of a passenger are completely supported, and then the riding comfort of the passenger is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of automobile seat leg supports, and in particular to an integrated automobile seat leg support. Background Art

[0002] When people ride in a car, in order to increase riding comfort, they usually like to turn the seat back backwards and sit in a backward leaning position. However, in this sitting position, the contact point between the occupant's buttocks and the seat cushion is closer to the front end of the seat than the contact point between the occupant's buttocks and the seat cushion when sitting upright. This makes the front end of the occupant's thighs suspended in the air, and the overall riding comfort needs to be improved.

[0003] In order to improve the comfort of passengers, the following two existing solutions have appeared on the market: 1. A thigh leg support is set at the front end of the seat cushion. When the passenger is in a backward leaning sitting position, the thigh leg support can extend forward to support the front end of the passenger's thigh, but in this method, the passenger's calf is always in a drooping state. 2. A small leg support is set at the lower side of the front end of the seat. The small leg support can rotate forward and extend to support the passenger's calf, so that the passenger can lie on the seat, but in this mode, the front end of the passenger's thigh is still in a suspended state. Summary of the invention

[0004] In view of this, the present invention provides an integrated automobile seat leg support, which aims to ensure that the legs of the occupants can be fully supported, thereby ensuring overall riding comfort.

[0005] To achieve the above purpose, the technical solution of the present invention is as follows:

[0006] An integrated car seat leg rest comprises a seat frame, characterized in that: a first driving mechanism and a support frame which can slide forward and backward are provided at the front of the seat frame, the support frame is used to support the thigh of the occupant, and the first driving mechanism is used to drive the support frame to slide out from the front of the seat frame or to be retracted into the seat frame; a second driving mechanism and a calf support assembly which is connected to the support frame in a flipping manner are provided at the front of the support frame, the calf support assembly is used to support the calf of the occupant, and the second driving mechanism is used to drive the calf support assembly to flip relative to the support frame.

[0007] By adopting the above structure, the front end of the occupant's thigh can be supported by the support frame that is slidably arranged at the front end of the seat frame, and the calf of the occupant can be supported by the calf support assembly that is flipped on the support frame. Through the combined design of the thigh support and the calf support, the occupant's legs are fully supported, thereby ensuring the occupant's riding comfort.

[0008] Preferably, the calf support assembly includes a rotating bracket rotatably arranged on the support frame and a leg support extension assembly slidably arranged on the rotating bracket, the leg support extension assembly includes a driving cross bar slidably arranged on the rotating bracket and a first extension plate connected to the driving cross bar, the end of the driving cross bar is provided with a guide block slidably matched with it, the sliding direction of the guide block relative to the driving cross bar and the sliding direction of the driving cross bar relative to the rotating bracket are perpendicular in space, the guide block is rotatably connected to the support frame via a first support shaft, the rotating bracket is rotatably connected to the support frame via a second support shaft, and the first support shaft is eccentrically arranged relative to the second support shaft. With the above structure, the driving cross bar can slide forward synchronously while the rotating bracket rotates, thereby driving the first extension plate to be extended and retracted synchronously.

[0009] Preferably, a third slide rail is provided inside the rotating bracket, the first extension plate is slidably mounted on the third slide rail, a first linkage mechanism is provided between the driving cross bar and the first extension plate, and when the driving cross bar slides relative to the rotating bracket, the first linkage mechanism can force the first extension plate to slide synchronously. With the above structure, the first linkage mechanism further ensures that the first extension plate can move synchronously with the driving cross bar during the rotation of the rotating bracket.

[0010] Preferably, the first linkage mechanism comprises a first connecting rod, a second connecting rod and a third connecting rod which are hinged in sequence, the end of the first connecting rod away from the second connecting rod is hinged on the rotating bracket, the middle part of the second connecting rod is rotatably connected to the driving cross rod, and the end of the third connecting rod away from the second connecting rod is hinged on the first extension plate. With the above structure, the three-link structure can facilitate the first extension plate to be unfolded forward, and also make the overall structure more compact when the first extension plate is folded in the rotating bracket.

[0011] Preferably, a fourth link is provided between the first link and the third link, the two ends of the fourth link are respectively hinged to the first link and the third link, and the fourth link is arranged parallel to the second link. With the above structure, the four-link mechanism with a parallelogram structure makes the sliding direction of the first extension plate more stable when sliding.

[0012] Preferably, a connecting rod extending along the width direction of the seat frame is provided in the middle part, and the first driving mechanism is arranged between the connecting rod and the supporting frame; the first driving mechanism comprises a first driving motor, a first screw rod and a first driving block, the first driving motor is fixedly arranged on the supporting frame, the first screw rod is arranged on the output end of the first driving motor and extends toward the side where the connecting rod is located, and the first driving block is hinged at the middle part of the connecting rod and is threadedly connected to the first screw rod. With the above structure, the unfolding and folding of the thigh leg support can be electrically controlled.

[0013] Preferably, the second driving mechanism comprises a second driving motor, a second screw and a second driving block, wherein the second driving motor is hinged at the bottom of the rotating bracket, the second screw is arranged at the output end of the second driving motor and extends toward the side where the supporting frame is located, and the second driving block is hinged at the middle position of the bottom of the supporting frame and is threadedly connected to the second screw. With the above structure, the rotation of the rotating bracket can be electrically controlled.

[0014] Preferably, the front end of the first extension plate is slidably mounted with a second extension plate, a third driving mechanism and a second linkage mechanism are provided between the first extension plate and the second extension plate, and the third driving mechanism and the second linkage mechanism are used to drive the second extension plate to slide relative to the first extension plate. With the above structure, the secondary extension of the calf leg support can be achieved, thereby meeting the needs of passengers of different heights for the calf leg support.

[0015] Preferably, the third driving mechanism comprises a third driving motor, a third screw and a third driving block, wherein the third driving motor is fixedly arranged on the second extension plate, the third screw is arranged on the output end of the third driving motor and extends toward the side where the first extension plate is located, and the third driving block is hinged on the second linkage mechanism and is threadedly connected to the third screw. With the above structure, the extension and retraction of the second extension plate can be electrically controlled.

[0016] Preferably, the second linkage mechanism includes a fifth link, a sixth link and a seventh link that are hinged in sequence, the end of the fifth link away from the sixth link is hinged on the first extension plate, the middle of the sixth link is hinged to the third drive block, and the end of the seventh link away from the sixth link is hinged to the third drive motor; an eighth link is also provided between the fifth link and the seventh link, the two ends of the eighth link are hinged to the fifth link and the seventh link respectively, and the eighth link is arranged parallel to the sixth link. With the above structure, through the four-bar linkage, the sliding direction of the second extension plate can be made more stable, and the overall structure can also be made more compact when the second extension plate is folded.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The integrated automobile seat leg support provided by the present invention can support the front end of the occupant's thigh through a support frame that is slidably arranged at the front end of the seat frame, and can support the occupant's calf through a calf support component that is flipped and arranged on the support frame. Based on this, through the combined design of the thigh support and the calf support, the occupant's legs are fully supported, thereby ensuring the occupant's riding comfort.

[0019] 2. The first extension plate and the second extension plate are both connected by a four-bar linkage, which ensures that when the entire calf leg support is folded, the overall structure is more compact and the space occupancy rate is lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure when the integrated leg rest is unfolded;

[0021] Figure 2 It is a schematic diagram of the structure of the integrated leg support in the folded state;

[0022] Figure 3 A structural schematic diagram showing the layout position of the guide block 8;

[0023] Figure 4 It is a schematic diagram of the structure of the calf support in the secondary extension state;

[0024] Figure 5 A schematic diagram showing the structure of the first driving mechanism 14;

[0025] Figure 6 A schematic diagram showing the structure of the second driving mechanism 15. DETAILED DESCRIPTION

[0026] The present invention is further described below in conjunction with embodiments and drawings.

[0027] like Figure 1 and Figure 2 As shown, an integrated car seat leg support includes a seat frame 1, a first slide rail 2 is fixedly installed on the inner side of the front end of the seat frame 1 by bolts, the first slide rail 2 is arranged along the front-to-back direction of the car seat, and a support frame 3 is slidably installed on the first slide rail 2, and the support frame 3 is used to support the front end of the thigh of the occupant. In this embodiment, the first slide rail 2 is arranged obliquely, and when the support frame 3 is unfolded, the thigh of the occupant is slightly lifted. A first driving mechanism 14 is also arranged between the front end of the seat frame 1 and the support frame 3, and the first driving mechanism 14 is used to drive the support frame 3 to slide out from the front end of the seat frame 1 or retract into the seat frame 1. A second driving mechanism 15 and a calf support assembly connected to the support frame 3 in a flipping manner are arranged at the front end of the support frame 3, and the calf support assembly is used to support the calf of the occupant, and the second driving mechanism 15 is used to drive the calf support assembly to flip relative to the support frame 3.

[0028] By sliding the support frame 3 at the front end of the seat frame, the front end of the occupant's thigh is supported, and then the calf support component connected by flipping on the support frame 3 is used to support the calf of the occupant. Based on this, the combined design of the thigh support and the calf support can fully support the legs of the occupant, thereby ensuring the riding comfort of the occupant.

[0029] like Figure 1 and Figure 3 As shown, the calf support assembly includes a rotating bracket 4 rotatably set on the support frame 3 and a leg support extension assembly slidably set on the rotating bracket 4, and second slide rails 5 are fixedly installed on the outer sides of both ends of the rotating bracket 4 by bolts. The leg support extension assembly includes a driving cross bar 6 slidably assembled on the second slide rail 5 and a first extension plate 7 connected to the driving cross bar 6, and guide blocks 8 slidingly matched with the driving cross bar 6 are installed at both ends of the driving cross bar 6. The sliding direction of the guide block 8 relative to the driving cross bar 6 is perpendicular to the sliding direction of the driving cross bar 6 relative to the second slide rail 5 in space. The guide block 8 is rotatably installed on the support frame 3 through a first support shaft 9, and the rotating bracket 4 is rotatably connected to the support frame 3 through a second support shaft 10, and the first support shaft 9 is eccentrically set relative to the second support shaft 10. Based on this, when the rotating bracket 4 rotates forward relative to the supporting frame 3, since the guide block 8 is eccentrically set and the driving cross bar 6 is slidably set on the second slide rail 5, the rotational force of the guide block 8 cannot drive the driving cross bar 6 to rotate synchronously, but the eccentric rotational force of the guide block 8 can force the guide block 8 to slide downward relative to the end of the driving cross bar 6, while the driving cross bar 6 can slide forward relative to the second slide rail 5. Since the driving cross bar 6 is connected to the first extension plate 7, the first extension plate 7 can be extended forward synchronously while the rotating bracket 4 rotates forward.

[0030] Specifically, Figure 3 and Figure 4 As shown, a third slide rail 11 is fixedly installed on the inner side of the second slide rail 5 by bolts, and the first extension plate 7 is slidably installed on the third slide rail 11. A first linkage mechanism 12 is installed between the driving cross bar 6 and the first extension plate 7. When the driving cross bar 6 slides relative to the second slide rail 5, the first linkage mechanism 12 can force the first extension plate 7 to slide synchronously.

[0031] Furthermore, the first linkage mechanism 12 includes a first link 12a, a second link 12b and a third link 12c which are hinged in sequence, wherein one end of the first link 12a away from the second link 12b is hinged on the rotating bracket 4, the middle part of the second link 12b is rotationally connected to the middle part of the driving cross bar 6, and one end of the third link 12c away from the second link 12b is hinged at the middle position of the first extension plate 7.

[0032] A fourth link 12d is installed between the first link 12a and the third link 12c. Both ends of the fourth link 12d are hinged to the first link 12a and the third link 12c respectively. The fourth link 12d is arranged parallel to the second link 12b.

[0033] The driving cross bar 6 and the first extension plate 7 are connected by a four-link structure, and the second slide rail 5 and the third slide rail 11 are stacked, so that the first extension plate 7 can be extended synchronously while the rotating bracket 4 rotates, and the extension length can be increased. At the same time, when the first extension plate 7 is folded, the entire calf support assembly structure is more compact. The four-link parallelogram structure can ensure that the sliding extension of the first extension plate 7 is more stable and directional.

[0034] like Figure 1 As shown, a connecting rod 13 extending along the width direction of the seat frame 1 is provided in the middle part thereof, and a first driving mechanism 14 is arranged between the connecting rod 13 and the supporting frame 3 .

[0035] Specifically, Figure 5 As shown, the first driving mechanism 14 includes a first driving motor 14a, a first screw rod 14b and a first driving block 14c. The first driving motor 14a is fixedly mounted on the supporting frame 3. The first screw rod 14b is mounted on the output end of the first driving motor 14a and extends toward the side where the connecting rod 13 is located. The first driving block 14c is hinged at the middle position of the connecting rod 13 and is threadedly connected with the first screw rod 14b. When the first driving motor 14a is running, the supporting frame 3 can slide forward and backward relative to the first slide rail 2 under the transmission action of the first screw rod 14b and the first driving block 14c.

[0036] like Figure 6 As shown, the second driving mechanism 15 is arranged between the rotating bracket 4 and the supporting frame 3, and specifically includes a second driving motor 15a, a second screw rod 15b and a second driving block 15c, wherein the second driving motor 15a is hinged at the lower middle part of the rotating bracket 4, the second screw rod 15b is arranged on the output end of the second driving motor 15a and extends toward the side where the supporting frame 3 is located, and the second driving block 15c is hinged at the bottom middle position of the supporting frame 3 and is threadedly connected to the second screw rod 15b.

[0037] like Figure 1 As shown, in this embodiment, the inner sides of both ends of the first extension plate 7 are fixed with fourth slide rails 16 by bolts, and the second extension plate 17 is slidably mounted on the fourth slide rail 16. The slidably mounted second extension plate 17 can further extend the extension length of the calf leg support, thereby meeting the needs of passengers of different heights for the leg support. A third drive mechanism 18 and a second linkage mechanism 19 are also provided between the first extension plate 7 and the second extension plate 17, and the sliding extension of the second extension plate 17 can be electrically controlled by the third drive mechanism 18 and the second linkage mechanism 19.

[0038] Specifically, Figure 4As shown, the third driving mechanism 18 includes a third driving motor 18a, a third screw rod 18b and a third driving block 18c, wherein the third driving motor 18a is fixedly mounted at the front end position of the second extension plate 17, the third screw rod 18b is arranged on the output end of the third driving motor 18a and extends toward the side where the first extension plate 7 is located, and the third driving block 18c is hinged on the second linkage mechanism 19 and is threadedly connected to the third screw rod 18b.

[0039] Further, the second linkage assembly 19 includes a fifth link 19a, a sixth link 19b and a seventh link 19c which are hinged in sequence, wherein the end of the fifth link 19a away from the sixth link 19b is hinged at the middle position of the first extension plate 7, the middle of the sixth link 19b is hinged to the third drive block 18c, and the end of the seventh link 19c away from the sixth link 19b is hinged to the third drive motor 18a. An eighth link 19d is also installed between the fifth link 19a and the seventh link 19c, and the two ends of the eighth link 19d are respectively hinged to the fifth link 19a and the seventh link 19c, and the eighth link 19d is arranged in parallel with the sixth link 19b.

[0040] By setting the third driving mechanism 18 and the second linkage mechanism 19, the sliding of the second extension plate 17 is electrically controlled. At the same time, the second linkage mechanism 19 is a four-link structure with a parallelogram structure, which can make the overall structure more compact when the second extension plate 17 is folded.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present invention. Under the guidance of the present invention, ordinary technicians in this field can make various similar expressions without violating the purpose and claims of the present invention, and such changes all fall within the scope of protection of the present invention.

Claims

1. An integrated car seat leg support, comprising a seat frame (1), characterized in that: The front part of the seat frame (1) is provided with a first driving mechanism (14) and a support frame (3) that can slide forward and backward, the support frame (3) is used to support the thighs of the occupant, and the first driving mechanism (14) is used to drive the support frame (3) to slide out from the front part of the seat frame (1) or to be retracted into the seat frame (1); The front part of the support frame (3) is provided with a second driving mechanism (15) and a calf support assembly connected to the support frame (3) in a flipping manner. The calf support assembly is used to support the calf of the occupant, and the second driving mechanism (15) is used to drive the calf support assembly to flip relative to the support frame (3).

2. The integrated car seat leg support according to claim 1, characterized in that: The calf support assembly comprises a rotating bracket (4) rotatably arranged on the support frame (3) and a leg support extension assembly slidably arranged on the rotating bracket (4), the leg support extension assembly comprises a driving cross bar (6) slidably arranged on the rotating bracket (4) and a first extension plate (7) connected to the driving cross bar (6), the end of the driving cross bar (6) is provided with a guide block (8) slidably matched with it, the sliding direction of the guide block (8) relative to the driving cross bar (6) and the sliding direction of the driving cross bar (6) relative to the rotating bracket (4) are perpendicular in space, the guide block (8) is rotatably connected to the support frame (3) through a first support shaft (9), the rotating bracket (4) is rotatably connected to the support frame (3) through a second support shaft (10), and the first support shaft (9) is eccentrically arranged relative to the second support shaft (10).

3. The integrated car seat leg support according to claim 2, characterized in that: A third slide rail (11) is provided on the inner side of the rotating bracket (4), the first extension plate (7) is slidably mounted on the third slide rail (11), a first linkage mechanism (12) is provided between the driving cross bar (6) and the first extension plate (7), and when the driving cross bar (6) slides relative to the rotating bracket (4), the first linkage mechanism (12) can force the first extension plate (7) to slide synchronously.

4. The integrated car seat leg support according to claim 3, characterized in that: The first linkage mechanism (12) comprises a first connecting rod (12a), a second connecting rod (12b) and a third connecting rod (12c) which are hinged in sequence, wherein one end of the first connecting rod (12a) away from the second connecting rod (12b) is hinged on the rotating bracket (4), the middle part of the second connecting rod (12b) is rotatably connected to the driving cross rod (6), and one end of the third connecting rod (12c) away from the second connecting rod (12b) is hinged on the first extension plate (7).

5. The integrated car seat leg support according to claim 4, characterized in that: A fourth connecting rod (12d) is also provided between the first connecting rod (12a) and the third connecting rod (12c), and both ends of the fourth connecting rod (12d) are respectively hinged to the first connecting rod (12a) and the third connecting rod (12c), and the fourth connecting rod (12d) is arranged in parallel with the second connecting rod (12b).

6. The integrated car seat leg support according to claim 1, characterized in that: A connecting rod (13) extending along the width direction of the seat frame (1) is provided in the middle part thereof, and the first driving mechanism (14) is arranged between the connecting rod (13) and the supporting frame (3); The first driving mechanism (14) comprises a first driving motor (14a), a first screw rod (14b) and a first driving block (14c); the first driving motor (14a) is fixedly arranged on the supporting frame (3); the first screw rod (14b) is arranged on the output end of the first driving motor (14a) and extends toward the side where the connecting rod (13) is located; the first driving block (14c) is hinged at the middle position of the connecting rod (13) and is threadedly connected to the first screw rod (14b).

7. The integrated car seat leg support according to claim 2, characterized in that: The second driving mechanism (15) comprises a second driving motor (15a), a second screw rod (15b) and a second driving block (15c); the second driving motor (15a) is hinged at the bottom of the rotating bracket (4); the second screw rod (15b) is arranged at the output end of the second driving motor (15a) and extends toward the side where the supporting frame (3) is located; the second driving block (15c) is hinged at the middle position of the bottom of the supporting frame (3) and is threadedly connected to the second screw rod (15b).

8. The integrated car seat leg support according to claim 2, characterized in that: A second extension plate (17) is slidably mounted at the front end of the first extension plate (7); a third driving mechanism (18) and a second linkage mechanism (19) are provided between the first extension plate (7) and the second extension plate (17); the third driving mechanism (18) and the second linkage mechanism (19) are both used to drive the second extension plate (17) to slide relative to the first extension plate (7).

9. The integrated car seat leg support according to claim 8, characterized in that: The third driving mechanism (18) comprises a third driving motor (18a), a third screw rod (18b) and a third driving block (18c); the third driving motor (18a) is fixedly arranged on the second extension plate (17); the third screw rod (18b) is arranged on the output end of the third driving motor (18a) and extends toward the side where the first extension plate (7) is located; the third driving block (18c) is hinged on the second linkage mechanism (19) and is threadedly connected to the third screw rod (18b).

10. The integrated car seat leg support according to claim 9, characterized in that: The second linkage mechanism (19) comprises a fifth connecting rod (19a), a sixth connecting rod (19b) and a seventh connecting rod (19c) which are hinged in sequence, wherein one end of the fifth connecting rod (19a) away from the sixth connecting rod (19b) is hinged on the first extension plate (7), the middle part of the sixth connecting rod (19b) is hinged to the third driving block (18c), and one end of the seventh connecting rod (19c) away from the sixth connecting rod (19b) is hinged on the third driving motor (18a); An eighth connecting rod (19d) is also provided between the fifth connecting rod (19a) and the seventh connecting rod (19c), and both ends of the eighth connecting rod (19d) are respectively hinged to the fifth connecting rod (19a) and the seventh connecting rod (19c), and the eighth connecting rod (19d) is arranged in parallel with the sixth connecting rod (19b).

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