Limiting device, leg supporting device and vehicle seat

Abstract

The utility model relates to the technical field of vehicle seats, and discloses a limiting device, a leg supporting device and a vehicle seat, the limiting device comprises a bearing assembly suitable for being connected with the leg supporting device, and a supporting position is formed on one side of the bearing assembly; the limiting assembly is arranged on the bearing assembly, the limiting assembly comprises limiting structures located on the two sides of the supporting position, and the limiting structures have the limiting state for limiting the legs from sliding towards the side portions and the avoiding state for avoiding the legs; the limiting structures are arranged on the two sides of the supporting position of the bearing assembly, the limiting structures can switch the states of the limiting structures through the driving assembly, and when the calf of a passenger is placed on the supporting position, the limiting structures located on the two sides of the calf are switched to be in the limiting state and abut against the calf of the passenger; the limiting structures can provide effective support on the two sides of the shanks and limit the shanks from sliding towards the two sides, so that the passengers can completely relax the legs without continuously exerting force to keep the positions of the shanks.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle seats, in particular to a position limiting device, a leg support device and a vehicle seat. Background Art

[0002] With the development of the vehicle industry and the continuous improvement of living standards, passengers have higher and higher requirements for riding comfort. More and more car models have begun to use leg rests to support the passengers' calves. The leg rests are usually arranged on the lower side of the seat close to the passenger's calves. When the leg rests are unfolded, they can form a continuous leg support surface together with the seat.

[0003] At present, in order to meet the needs of appearance, the leg support surface of the existing leg support device is mostly a convex arc surface. In this type of leg support device, when the passenger's calf is placed on the leg support surface, the calf will have a tendency to slide to both sides along the leg support surface and fall off the leg support surface. The passenger needs to continue to maintain force to prevent the leg from slipping. Therefore, the existing leg support device has the problem of being unable to effectively support the calf, resulting in poor comfort in use. Utility Model Content

[0004] In view of this, the utility model provides a limiting device, a leg support device and a vehicle seat to solve the problem that the existing leg support device cannot effectively support the calf, resulting in poor comfort in use.

[0005] In the first aspect, the utility model provides a limiting device, which is used for a leg support device of a seat, comprising: a bearing assembly, which is suitable for being connected to the leg support device, and one side of the bearing assembly forms a supporting position; a limiting assembly, which is arranged on the bearing assembly, and the limiting assembly includes limiting structures located on both sides of the supporting position, and the limiting structure has a limiting state for limiting the legs from sliding toward the side, and an avoiding state for avoiding the legs; a driving assembly, which is connected to the limiting assembly, and the driving assembly is suitable for driving the limiting structure to switch states.

[0006] Beneficial effect: limiting structures are set on both sides of the supporting position of the load-bearing component, and the limiting structures can switch their own states through the driving component. When the passenger's calf is placed in the supporting position, the limiting structures on both sides of the calf are switched to the limiting state and abut against the passenger's calf. The limiting structures can provide effective support on both sides of the calf and limit the sliding of the calf to both sides, so that the passenger does not need to continuously exert force to maintain the position of the calf, and can completely relax the legs, which effectively solves the problem that the existing leg support device cannot effectively support the calf, resulting in poor comfort in use.

[0007] In an optional embodiment, the limiting structure has a filling cavity for accommodating a filler, the driving assembly includes a conveying structure for conveying the filler, the conveying structure is connected to the filling cavity, the limiting structure is filled with the filler and protrudes, the limiting structure is in a limiting state, the filler in the limiting structure is withdrawn and contracts, and the limiting structure is in an avoidance state.

[0008] Beneficial effects: The overall structure of the limiting structure is simple and effective. The limiting structure is made convex or flat by conveying and extracting the filler, making the state switching process of the limiting structure smoother.

[0009] In an optional embodiment, the limiting assembly further includes a connecting pipe, the filling cavities of the limiting structures on both sides of the support position are connected through the connecting pipe, and the conveying structure is connected to one of the filling cavities.

[0010] Beneficial effect: The limiting structures form an integral cavity through the connecting pipe, and the states of the two limiting structures can be changed in sequence through a conveying structure.

[0011] In an optional embodiment, each limiting structure includes at least one airbag, and each airbag has a filling cavity inside.

[0012] Beneficial effects: By filling the limiting structure with gas, the state switching of the limiting structure is faster and more sensitive. When the airbag is damaged and leaks, the gas leakage will not have a significant impact on the passengers, and the safety factor is higher.

[0013] In an optional embodiment, the driving assembly further includes a delivery tube, and the delivery structure is connected to the corresponding filling chamber through the delivery tube.

[0014] Beneficial effect: The conveying pipe can extend the conveying distance of the conveying structure, so that the conveying structure can more flexibly choose its own installation position.

[0015] In an optional embodiment, the limiting device further includes a support pad, the support pad is arranged at the supporting position, the limiting assembly is located between the support pad and the bearing assembly, and a side of the support pad away from the bearing assembly forms a contact surface.

[0016] Beneficial effect: The support pad covers the support position and the limit component, which not only improves the integrity of the position and improves the aesthetics, but also makes the support pad softer, thereby improving the comfort of the passenger's calf.

[0017] In an optional implementation, the limiting structure is connected to the bearing assembly via a fastening component.

[0018] Beneficial effects: The connection method is simple and reliable, and is easy to disassemble and install.

[0019] In an optional embodiment, the edge of the limiting structure is provided with a through hole for the fastening component to pass through, and the bearing assembly is correspondingly provided with a matching hole for the fastening component to pass through.

[0020] Beneficial effects: simple structure, easy to install fastening parts.

[0021] In a second aspect, the utility model further provides a leg support device, which includes: a mounting seat; a bracket, movably arranged on the mounting seat; a driving structure, arranged on the mounting seat and connected to the bracket; and the above-mentioned limiting device, which is arranged on the bracket.

[0022] In a third aspect, the utility model further provides a vehicle seat, which comprises: the above-mentioned limiting device, or the above-mentioned leg support device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 This is an exploded schematic diagram of a limiting device according to an embodiment of the utility model;

[0025] Figure 2 for Figure 1 A schematic top view of the limiting assembly of the limiting device shown in the figure when it cooperates with the bearing assembly;

[0026] Figure 3 for Figure 2 The formal schematic diagram of the limiting assembly of the limiting device shown in the figure cooperates with the bearing assembly;

[0027] Figure 4 This is an exploded schematic diagram of a leg support device according to an embodiment of the utility model.

[0028] Description of reference numerals:

[0029] 1. Load-bearing assembly; 101. Support position; 2. Limiting assembly; 201. Limiting structure; 2011. Through hole; 202. Connecting pipe; 203. Fastening component; 3. Driving assembly; 301. Conveying structure; 302. Conveying pipe; 4. Support pad; 5. Mounting seat; 6. Bracket; 7. Driving structure. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0031] Combine the following Figures 1 to 4 , describing an embodiment of the utility model.

[0032] According to an embodiment of the utility model, on the one hand, a limiting device is provided, which is used for a leg support device of a seat, comprising: a bearing assembly 1, a limiting assembly 2 and a driving assembly 3, wherein the bearing assembly 1 is suitable for being connected to the leg support device, and one side of the bearing assembly 1 forms a supporting position 101; the limiting assembly 2 is arranged on the bearing assembly 1, and the limiting assembly 2 includes a limiting structure 201 located on both sides of the supporting position 101, and the limiting structure 201 has a limiting state for limiting the legs from sliding toward the side, and an avoiding state for avoiding the legs; the driving assembly 3 is connected to the limiting assembly 2, and the driving assembly 3 is suitable for driving the limiting structure 201 to switch states.

[0033] The limiting device of this embodiment is applied, and limiting structures 201 are set on both sides of the support position 101 of the load-bearing component 1. The limiting structure 201 can switch its own state through the driving component 3. When the passenger's calf is placed on the support position 101, the limiting structures 201 on both sides of the calf are switched to the limiting state and abut against the passenger's calf. The limiting structure 201 can provide effective support on both sides of the calf and limit the sliding of the calf to both sides, so that the passenger does not need to continuously exert force to maintain the position of the calf, and can completely relax the legs, which effectively solves the problem that the existing leg support device cannot effectively support the calf and causes poor comfort in use.

[0034] It should be noted that the support position 101 refers to the position used to mainly support the passenger's calf. The passenger's calf can directly contact the support position 101 of the load-bearing component 1, or it can indirectly contact the support position 101 by providing a soft pad on the support position 101.

[0035] Specifically, there is no limitation on the specific structure of the limit component 2, which can be a structure that can be mechanically extended and lifted, a structure that can be swung and lifted, or a structure that can expand and contract. As long as it can switch its own state and prevent the calf from sliding down on both sides of the support position 101, it can be flexibly selected according to needs.

[0036] Furthermore, as an alternative implementation, the driving assembly 3 may not be provided, and the state of the limiting structure 201 may be changed manually by the passenger.

[0037] In addition, in this embodiment, the specific structure of the load-bearing component 1 is not limited. The load-bearing component 1 is preferably a plate-like structure. The material of the load-bearing component 1 can be plastic, metal, wood, etc., preferably plastic, which can meet the load-bearing requirements while being lighter and easier to process and manufacture.

[0038] In this embodiment, the limiting structure 201 has a filling cavity for accommodating fillers, and the driving component 3 includes a conveying structure 301 for conveying the fillers. The conveying structure 301 is connected to the filling cavity, and the limiting structure 201 is filled with fillers and bulges. The limiting structure 201 is in a limiting state, and the fillers in the limiting structure 201 are withdrawn and contracted, and the limiting structure 201 is in an avoidance state. The limiting structure 201 has a simple and effective structure, and the limiting structure 201 is bulged or flattened by conveying and extracting fillers, so that the state switching process of the limiting structure 201 is smoother.

[0039] Specifically, compared with a swing-type or lifting baffle, this type of limiting structure 201 has more concise components, is less prone to damage, and is easier to install.

[0040] Furthermore, there is no limitation on the material of the limiting structure 201 , and it may be a hard foldable bag body, or an elastic and soft bag body that can expand or contract, and the selection may be made according to the requirements.

[0041] In addition, in this embodiment, there is no limitation on the specific type of the filler, which may be liquid, small solid particles or gas, as long as it is easy to transport and extract.

[0042] In this embodiment, the limiting component 2 also includes a connecting tube 202, and the filling cavities of the limiting structures 201 on both sides of the support position 101 are connected through the connecting tube 202. The conveying structure 301 is connected to one of the filling cavities. The limiting structure 201 forms an integral cavity through the connecting tube 202, and the states of the two limiting structures 201 can be changed in turn through a conveying structure 301.

[0043] It can be understood that, as an alternative embodiment, the limiting assembly 2 may not be provided with the connecting pipe 202 , and the filling chambers of the limiting structure 201 are respectively connected with the conveying structure 301 .

[0044] In this embodiment, each limiting structure 201 includes at least one airbag, and each airbag has a filling cavity inside. By filling the limiting structure 201 with gas, the state switching of the limiting structure 201 is faster and more sensitive. When the airbag is damaged and leaks, the gas leakage will not have a significant impact on the passengers, and the safety factor is higher.

[0045] There is no limitation on the type of gas filled in the airbag, and it can be selected according to the needs.

[0046] Specifically, the delivery structure 301 can also flexibly adjust the height of the protrusion of the limiting structure 201 by controlling the amount of gas delivered to the airbag.

[0047] In this embodiment, the driving assembly 3 also includes a delivery pipe 302, and the delivery structure 301 is connected to the corresponding filling cavity through the delivery pipe 302. The delivery pipe 302 can extend the delivery distance of the delivery structure 301, so that the delivery structure 301 can more flexibly select its own installation position.

[0048] Specifically, the driving component 3 is an air pump for conveying gas.

[0049] In this embodiment, the limiting device also includes a support pad 4, which is arranged at the supporting position 101. The limiting component 2 is located between the support pad 4 and the load-bearing component 1. The side of the support pad 4 away from the load-bearing component 1 forms a contact surface. The support pad 4 covers the supporting position 101 and the limiting component 2, which not only improves the integrity of the position and improves the aesthetics, but also makes the support pad 4 softer, thereby improving the comfort of the passenger's calf.

[0050] Specifically, the support pad 4 includes an internal pad and a surface cover mounted on the outside. The type of the pad is not strictly limited and can be a relatively soft and comfortable pad such as a foam pad, a sponge pad, a silicone pad, etc.

[0051] In this embodiment, the limiting structure 201 is connected to the bearing assembly 1 through the fastening component 203. The connection method is simple and reliable, and is easy to disassemble and install.

[0052] The specific type of the fastening component 203 is not limited, and it can be a screwing structure such as a bolt and a nut, or a snap-fit ​​structure such as a buckle.

[0053] In this embodiment, the edge of the limiting structure 201 is provided with a through hole 2011 for the fastening component 203 to pass through, and the bearing component 1 is correspondingly provided with a matching hole for the fastening component 203 to pass through. The structure is simple and the fastening component 203 is easy to install.

[0054] Specifically, Figure 2 As shown, the position of the through hole 2011 is schematically illustrated. There is no limitation on the number of the through hole 2011 and the corresponding matching holes. One through hole 2011 or multiple through holes 2011 can be set. The number of fastening components 203 used in the limiting structure 201 can be flexibly selected according to demand.

[0055] According to an embodiment of the utility model, on the other hand, a leg support device is provided, which includes: a mounting seat 5, a bracket 6, a driving structure 7 and the above-mentioned limiting device, the bracket 6 is movably arranged on the mounting seat 5, the driving structure 7 is arranged on the mounting seat 5 and connected to the bracket 6, and the limiting device is arranged on the bracket 6.

[0056] In this embodiment, the conveying structure 301 of the limiting device can be fixed on the bracket 6, or can be fixed on the mounting seat 5, or can be installed on the main body of the seat, which can be flexibly selected according to needs.

[0057] In this embodiment, the leg support device also includes a massage component and a heating component, both of which are arranged on the load-bearing component 1 of the limiting device. The massage component can massage the passenger's calves, and the heating component can increase the temperature of the contact surface between the limiting device and the calf, thereby further optimizing the passenger's usage experience.

[0058] Among them, there is no limitation on the specific structure of the massage component and the heating component, and reference may be made to the existing massage components and heating components, and no further elaboration is made here.

[0059] According to an embodiment of the present utility model, in another aspect, a vehicle seat is provided, which includes: the above-mentioned limiting device, or the above-mentioned leg support device.

[0060] In this embodiment, the vehicle seat body also includes necessary components such as a backrest, a seat cushion, a headrest, and a seat body.

[0061] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A limiting device for a leg support device of a seat, characterized in that: include: A bearing assembly (1) adapted to be connected to a leg support device, wherein one side of the bearing assembly (1) forms a support position (101); A limiting assembly (2) is arranged on the bearing assembly (1), the limiting assembly (2) comprising limiting structures (201) located on both sides of the supporting position (101), the limiting structures (201) having a limiting state for limiting the leg from sliding toward the side, and an avoiding state for avoiding the leg; A driving component (3) is connected to the limiting component (2), and the driving component (3) is suitable for driving the limiting structure (201) to switch states.

2. The limiting device according to claim 1, characterized in that: The limiting structure (201) has a filling cavity for accommodating a filler inside, the driving assembly (3) comprises a conveying structure (301) for conveying the filler, the conveying structure (301) is connected to the filling cavity, the limiting structure (201) is filled with the filler and protrudes, the limiting structure (201) is in the limiting state, the filler in the limiting structure (201) is withdrawn and retracted, and the limiting structure (201) is in the avoiding state.

3. The limiting device according to claim 2, characterized in that: The limiting assembly (2) further comprises a connecting pipe (202), the filling cavities of the limiting structures (201) on both sides of the supporting position (101) are connected via the connecting pipe (202), and the conveying structure (301) is connected to one of the filling cavities.

4. The limiting device according to claim 2, characterized in that: Each of the limiting structures (201) comprises at least one airbag, and each of the airbags has a filling cavity inside.

5. The limiting device according to claim 2, characterized in that: The driving assembly (3) further comprises a delivery tube (302), and the delivery structure (301) is connected to the corresponding filling cavity via the delivery tube (302).

6. The limiting device according to any one of claims 1 to 5, characterized in that: The limiting device also includes a support pad (4), the support pad (4) is arranged at the supporting position (101), the limiting component (2) is located between the support pad (4) and the bearing component (1), and a side surface of the support pad (4) away from the bearing component (1) forms a contact surface.

7. The limiting device according to any one of claims 1 to 5, characterized in that: The limiting structure (201) is connected to the bearing assembly (1) via a fastening component (203).

8. The limiting device according to claim 7, characterized in that: The edge of the limiting structure (201) is provided with a through hole (2011) for the fastening component (203) to pass through, and the bearing assembly (1) is correspondingly provided with a matching hole for the fastening component (203) to pass through.

9. A leg support device, characterized in that: include: Mounting seat (5); A bracket (6) movably arranged on the mounting seat (5); A driving structure (7) is disposed on the mounting seat (5) and connected to the bracket (6); The limiting device according to any one of claims 1 to 7 is arranged on the bracket (6).

10. A vehicle seat, characterized in that: include: The limiting device according to any one of claims 1 to 7, or the leg support device according to claim 9.

Images