Leg supporting assembly and vehicle seat

Abstract

The utility model belongs to the technical field of vehicle seats, and particularly relates to a leg supporting assembly and a vehicle seat, the leg supporting assembly comprises a mounting plate, a supporting piece, an air source and an adjusting air bag, the mounting plate is used for being connected with a seat framework of a vehicle, the supporting piece comprises a supporting plate, the supporting plate and the mounting plate are assembled in a rotating mode, and the air source is arranged on the supporting plate. The adjusting air bag is arranged between the mounting plate and the supporting plate, the air source is used for inflating or deflating the adjusting air bag, and the adjusting air bag can drive the supporting plate to swing in the direction away from the mounting plate during inflation. When the adjusting air bag is pressed, the adjusting air bag deforms in the stress direction, so that the supporting plate floats up and down so as to be attached to the legs of the passenger, the leg separation feeling of the passenger is reduced, and the comfort level of the passenger is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to vehicle seat technical field especially relates to a leg support subassembly and vehicle seat. BACKGROUND

[0002] Vehicle seat is the facility inside the vehicle for the passenger to sit, is used for providing support for the passenger's body, thereby improves the comfort of the passenger.

[0003] The existing vehicle seat includes framework and installs the seat pad, backrest, headrest, side back support and leg support on the framework, the design of seat pad and backrest should coincide with the human body back curve, to provide the best support and comfort, headrest and side back support are used for protecting the safety of the passenger, reduce the impact force when colliding. The leg support subassembly includes support plate and drive motor, the support plate rotates assembly on the seat framework, the drive motor is installed on the framework, the drive motor is transmission connection with the support plate, and the drive motor is used for driving the support plate to swing back and forth, so that the length of the support plate from the framework is adjustable.

[0004] However, the existing vehicle seat, the hardness of the support plate of the leg support subassembly is higher, and the leg rest feeling is prone to be generated when the vehicle passes through the bumpy road section. SUMMARY

[0005] The utility model relates to a kind of leg support subassembly and vehicle seat for the technical problem that the hardness of the support plate of the leg support subassembly of the existing vehicle seat is higher, and the leg rest feeling is prone to be generated when the vehicle passes through the bumpy road section.

[0006] To solve the above technical problems, on the one hand, the utility model embodiment provides a kind of leg support subassembly, including mounting plate, support piece, gas source and adjusting air bag, the mounting plate is used to be connected with the seat framework of vehicle, the support piece includes support plate, the support plate is rotationally assembled with the mounting plate, the adjusting air bag is arranged between the mounting plate and the support plate;

[0007] The gas source is used to inflate or deflate the adjusting air bag;The adjusting air bag can drive the support plate to swing in the direction away from the mounting plate when inflated.

[0008] Optionally, the side of the adjusting air bag away from the support plate is abutted with the mounting plate, and the side of the adjusting air bag away from the mounting plate is abutted with the support plate.

[0009] Optionally, the support piece further includes support pad, the support pad is laid on the support plate, and the support pad is used to support the leg of the passenger.

[0010] Optionally, the support plate comprises a first plate segment and a second plate segment, the upper end of the first plate segment is rotationally assembled with the mounting plate, the second plate segment is connected with the lower end of the first plate segment, and the adjusting air bag is capable of driving the first plate segment to swing away from the mounting plate.

[0011] The first plate segment is used for supporting the thigh of the passenger, and the second plate segment is used for supporting the knee and the calf of the passenger.

[0012] Optionally, the first plate segment is in a rectangular shape, and the second plate segment is in an arc shape.

[0013] Optionally, the mounting plate is provided with a first connecting arm, and the first plate segment is provided with a first rotating shaft, and the first rotating shaft is rotationally assembled with the first connecting arm.

[0014] The first connecting arm is provided with two first connecting arms which are arranged at intervals, and the first rotating shaft is located between the two first connecting arms.

[0015] Optionally, a torsional spring is further included, the torsional spring is sleeved on the first rotating shaft, one end of the torsional spring is connected with the first plate segment, the other end of the torsional spring is connected with the mounting plate, and the torsional spring is used for driving the first plate segment to swing towards the mounting plate.

[0016] Optionally, an angle sensor is further included, and the angle sensor is used for detecting the swing angle of the first plate segment.

[0017] The leg support assembly provided by the embodiment of the utility model drives the support plate to swing away from the mounting plate through inflation of the adjusting air bag, which is not only simple in structure and convenient to design, but also, compared with the prior art, when the vehicle passes through a bumpy road section, the leg of the passenger exerts pressure on the adjusting air bag through the support plate, since the adjusting air bag is not a rigid structure, the adjusting air bag will deform in the direction of the force when subjected to the pressure, so that the support plate floats up and down to be fitted with the leg of the passenger, thereby reducing the leg discomfort of the passenger and improving the comfort of the passenger.

[0018] On the other hand, the embodiment of the utility model provides a vehicle seat, which comprises a seat framework and the above-mentioned leg support assembly, the mounting plate is connected with the seat framework, and the air source is installed on the seat framework.

[0019] Optionally, the seat framework is provided with a fixing plate, and the mounting plate is installed on the fixing plate. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 Fig. 1 is a structural schematic view of a vehicle seat provided by an embodiment of the utility model;

[0021] Figure 2The structural schematic view of the leg support assembly provided by one embodiment of the utility model is shown in the figure.

[0022] Figure 3 For Figure 2 Another view.

[0023] The reference signs in the specification are as follows: 1, seat framework; 2, connecting column; 3, fixed plate; 4, leg support assembly; 5, air source; 6, support plate; 7, first plate segment; 8, second plate segment; 9, support pad; 10, adjusting air bag; 11, mounting plate; 12, protruding block; 13, first connecting arm; 14, first rotating shaft; 15, extension segment; 16, rotating drum; 17, torsional spring; 18, air pipe; 19, Hall sensor; 20, Hall element; 21, magnet. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical schemes and beneficial effects solved by the utility model clearer and more apparent, the utility model is further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and do not limit the utility model.

[0025] As Figures 1 to 3 The utility model discloses a leg support assembly 4, including mounting plate 11, support piece, air source 5 and adjusting air bag 10, the mounting plate 11 is used to be connected with the seat framework 1 of vehicle, the support piece includes support plate 6, the support plate 6 is rotatably assembled with the mounting plate 11, the adjusting air bag 10 is arranged between the mounting plate 11 and the support plate 6, the air source 5 is used to inflate or deflate the adjusting air bag 10, the adjusting air bag 10 can drive the support plate 6 to swing in the direction away from the mounting plate 11 when inflating.

[0026] The side of the adjusting air bag 10 away from the support plate 6 is abutted with the mounting plate 11, and the side of the adjusting air bag 10 away from the mounting plate 11 is abutted with the support plate 6.

[0027] Specifically, the air source 5 is communicated with the adjusting air bag 10 through the air pipe 18, the air source 5 is used for inflating or deflating the adjusting air bag 10, the two sides of the adjusting air bag 10 are respectively contacted with the support plate 6 and the mounting plate 11, when the adjusting air bag 10 is inflated, the adjusting air bag 10 is inflated, since the mounting plate 11 is connected with the seat framework 1 of the vehicle seat, the mounting plate 11 cannot be moved, at this time, the adjusting air bag 10 drives the support plate 6 to swing away from the mounting plate 11, so that the support plate 6 can support the legs of the passenger, when the vehicle passes through the bumpy road section, the legs of the passenger are pressed to the adjusting air bag 10 through the support plate 6, since the adjusting air bag 10 is not a rigid structure, the adjusting air bag 10 is deformed to the direction of the force when the pressure is received, so that the support plate 6 is floated up and down to be fitted with the legs of the passenger, the passenger's leg feeling is reduced, and the comfort of the passenger is improved, when the adjusting air bag 10 is deflated, the adjusting air bag 10 is deflated, the support plate 6 loses the support of the adjusting air bag 10, and the support plate 6 moves to the mounting plate 11 by relying on the gravity of the support plate 6.

[0028] In an embodiment, the support further comprises a support pad 9, the support pad 9 is laid on the support plate 6, and the support pad 9 is used for supporting the legs of the passenger.

[0029] Specifically, the support pad 9 is made of silica gel material, the support pad 9 is laid on the side of the support plate 6 away from the mounting plate 11, that is, the support pad 9 is laid on the side of the support plate 6 contacted with the legs of the passenger, when the support plate 6 supports the legs of the passenger, the support pad 9 can play a buffering role between the legs of the passenger and the support plate 6, and the comfort of the passenger can be improved.

[0030] In an embodiment, the support plate 6 comprises a first plate segment 7 and a second plate segment 8, the upper end of the first plate segment 7 is rotationally assembled with the mounting plate 11, the second plate segment 8 is connected with the lower end of the first plate segment 7, and the adjusting air bag 10 can drive the first plate segment 7 to swing away from the mounting plate 11.

[0031] The first plate segment 7 is used for supporting the thighs of the passenger, and the second plate segment 8 is used for supporting the knee parts and the calves of the passenger.

[0032] Specifically, the support plate 6 comprises a first plate segment 7 and a second plate segment 8, the upper end of the first plate segment 7 is rotationally assembled with the mounting plate 11, the adjusting air bag 10 is located between the first plate segment 7 and the mounting plate 11, when the adjusting air bag 10 is inflated, the adjusting air bag 10 is inflated, at this time, the adjusting air bag 10 drives the first plate segment 7 to swing away from the mounting plate 11, so that the first plate segment 7 supports the thighs of the passenger.

[0033] The second plate segment 8 is connected with the lower end of the first plate segment 7, and when the first plate segment 7 supports the thigh of the passenger, the second plate segment 8 supports the knee and the lower leg of the passenger, further improving the comfort of the passenger.

[0034] In an embodiment, the first plate segment 7 is rectangular, and the second plate segment 8 is arc-shaped. The first plate segment is rectangular, which can better fit and support the thigh of the passenger. The second plate segment 8 is arc-shaped, which can better fit and support the lower leg and the knee of the passenger, further improving the comfort of the passenger.

[0035] In an embodiment, the mounting plate 11 is provided with a first connecting arm 13, the first plate segment 7 is provided with a first rotating shaft 14, the first rotating shaft 14 is rotationally assembled with the first connecting arm 13, the first connecting arm 13 is provided with two, the two first connecting arms 13 are arranged at intervals, and the first rotating shaft 14 is located between the two first connecting arms 13.

[0036] Specifically, the first connecting arm 13 is provided with a first rotating hole, the top of the first plate segment 7 is provided with a rotating cylinder 16, the first rotating shaft 14 is arranged in the rotating cylinder 16, and the end of the first rotating shaft 14 is inserted into the first rotating hole, so that the first plate segment 7 can swing relative to the mounting plate 11, and the structure is simple and convenient to design.

[0037] The two first connecting arms 13 are arranged at intervals, the rotating cylinder 16 is located between the two first connecting arms 13, the two ends of the first rotating shaft 14 are respectively inserted into the first rotating holes of the two first connecting arms 13, and the first rotating shaft 14 is supported by the two first connecting arms 13, so that the rotating stability of the first rotating shaft 14 can be improved.

[0038] In an embodiment, a torsional spring 17 is further included, the torsional spring 17 is sleeved on the first rotating shaft 14, one end of the torsional spring 17 is connected with the first plate segment 7, the other end of the torsional spring 17 is connected with the mounting plate 11, and the torsional spring 17 is used to drive the first plate segment 7 to swing towards the mounting plate 11.

[0039] Specifically, the first rotating shaft 14 has an extension segment 15, the extension segment 15 passes through the first connecting arm 13, the torsional spring 17 is sleeved on the extension segment 15, the first plate segment 7 is provided with a limiting clamping groove, one end of the torsional spring 17 is fixed in the limiting clamping groove, the mounting plate 11 is provided with a protruding block 12, the other end of the torsional spring 17 is inserted into a through hole of the protruding block 12, when the first plate segment 7 swings away from the mounting plate 11, the torsional spring 17 is deformed, accumulates elastic potential energy, when the air bag 10 is adjusted to deflate, the torsional spring 17 restores its deformation, releases the elastic potential energy, thereby driving the first plate segment 7 to move towards the mounting plate 11, and the swinging speed of the support plate 6 is improved.

[0040] In an embodiment, the leg support assembly 4 further comprises an angle sensor for detecting the swing angle of the first plate segment 7.

[0041] Specifically, the angle sensor is a Hall sensor 19, a magnet 21 of the Hall sensor 19 is installed on the top of the first plate segment 7, and a Hall element 20 of the Hall sensor 19 is installed on the top of the mounting plate 11, the Hall element 20 is arranged opposite to the magnet 21, and the Hall element 20 cooperates with the magnet 21 to detect the swing angle of the first plate segment 7.

[0042] The working principle of the leg support assembly 4 is as follows:

[0043] The two sides of the adjusting air bag 10 are in contact with the first plate segment 7 and the mounting plate 11 respectively, when the adjusting air bag 10 is inflated, the adjusting air bag 10 is inflated, since the mounting plate 11 is connected with the seat framework 1 of the vehicle seat, the mounting plate 11 will not move, at this time, the adjusting air bag 10 drives the first plate segment 7 to swing away from the mounting plate 11, so that the first plate segment 7 forms a support for the thighs of the passenger, and the second plate segment 8 is in an arc shape, when the first plate segment 7 forms a support for the thighs of the passenger, the arc-shaped second plate segment 8 forms a stroke for the leg bend and the lower leg of the passenger, and the comfort of the passenger is further improved.

[0044] When the vehicle passes through a bumpy section, the legs of the passenger pass through the first plate segment 7 to apply pressure to the adjusting air bag 10, since the adjusting air bag 10 is not a rigid structure, the adjusting air bag 10 will deform in the direction of the force when subjected to the pressure, so that the first plate segment 7 floats up and down to fit the legs of the passenger, reduces the feeling of the passenger's legs, and improves the comfort of the passenger, when the adjusting air bag 10 is deflated, the adjusting air bag 10 is deflated, the first plate segment 7 loses the support of the adjusting air bag 10, and the first plate segment 7 moves to the direction close to the mounting plate 11 by relying on its own gravity.

[0045] According to the leg support assembly 4, the inflation and deflation of the adjusting air bag 10 drive the support plate 6 to swing away from or close to the mounting plate 11, which is not only simple in structure and convenient to design, but also compared with the prior art, when the vehicle passes through a bumpy section, the legs of the passenger pass through the support plate 6 to apply pressure to the adjusting air bag 10, since the adjusting air bag 10 is not a rigid structure, the adjusting air bag 10 will deform in the direction of the force when subjected to the pressure, so that the support plate 6 floats up and down to fit the legs of the passenger, reduces the feeling of the passenger's legs, and improves the comfort of the passenger.

[0046] In other embodiments, the angle sensor is a common angle sensor on the market.

[0047] In addition, the utility model provides a kind of vehicle seat, including seat framework 1 and above-mentioned leg support assembly 4, the mounting plate 11 is connected with the seat framework 1, the gas source 5 is installed on the seat framework 1.

[0048] The seat framework 1 is provided with a fixing plate 3, the fixing plate 3 is parallel with the mounting plate 11, and the mounting plate 11 is installed on the fixing plate 3.

[0049] Specifically, the seat framework 1 includes a seat cushion framework and a backrest framework (not shown), the seat cushion framework is provided with a connecting column 2, the fixing plate 3 is connected with the seat cushion framework through the connecting column 2, so that the fixing plate 3 is parallel with the mounting plate 11, the mounting plate 11 is bolted with the fixing plate 3, and the gas source 5 is installed on the backrest framework.

[0050] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement and improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A leg support assembly (4) characterised in that, The leg support assembly comprises a mounting plate (11), a support member, a gas source (5) and an adjusting air bag (10), the mounting plate (11) is used for being connected with a seat framework (1) of a vehicle, the support member comprises a support plate (6), the support plate (6) is rotatably connected with the mounting plate (11), and the adjusting air bag (10) is arranged between the mounting plate (11) and the support plate (6); The gas source (5) is used for inflating or deflating the adjusting air bag (10); and the adjusting air bag (10) can drive the support plate (6) to swing away from the mounting plate (11) when being inflated.

2. The leg support assembly (4) according to claim 1, characterized in that The side, away from the support plate (6), of the adjusting air bag (10) is abutted against the mounting plate (11), and the side, away from the mounting plate (11), of the adjusting air bag (10) is abutted against the support plate (6).

3. The leg support assembly (4) according to claim 1, characterized in that The support member further comprises a support pad (9), the support pad (9) is arranged on the support plate (6), and the support pad (9) is used for supporting legs of a passenger.

4. The leg support assembly (4) according to claim 1, characterized in that The support plate (6) comprises a first plate segment (7) and a second plate segment (8), the upper end of the first plate segment (7) is rotatably connected with the mounting plate (11), the second plate segment (8) is connected with the lower end of the first plate segment (7), and the adjusting air bag (10) can drive the first plate segment (7) to swing away from the mounting plate (11). The first plate segment (7) is used for supporting thighs of a passenger, and the second plate segment (8) is used for supporting knee parts and shank parts of the passenger.

5. The leg support assembly (4) according to claim 4, characterized in that The first plate segment (7) is in a rectangular shape, and the second plate segment (8) is in an arc shape.

6. The leg support assembly (4) according to claim 4, characterized in that The mounting plate (11) is provided with a first connecting arm (13), the first plate segment (7) is provided with a first rotating shaft (14), and the first rotating shaft (14) is rotatably connected with the first connecting arm (13). The first connecting arm (13) is provided with two first connecting arms (13), the two first connecting arms (13) are arranged at intervals, and the first rotating shaft (14) is located between the two first connecting arms (13).

7. The leg support assembly (4) according to claim 6, characterized in that A torsional spring (17) is further arranged on the first rotating shaft (14), one end of the torsional spring (17) is connected with the first plate segment (7), the other end of the torsional spring (17) is connected with the mounting plate (11), and the torsional spring (17) is used for driving the first plate segment (7) to swing towards the mounting plate (11).

8. The leg support assembly (4) according to claim 4, characterized in that An angle sensor is further arranged, and the angle sensor is used for detecting a swing angle of the first plate segment (7).

9. A vehicle seat characterized by comprising: The seat framework (1) and the leg support assembly (4) are connected with each other.

10. The vehicle seat according to claim 9, characterized by The mounting plate (11) is arranged on the fixing plate (3).

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