CN212124934U - Seat with stepless regulation thigh support - Google Patents

Abstract

The utility model discloses a chair with a stepless regulation thigh support, which comprises a cushion half basin, a cushion foaming assembly, a thigh support foaming assembly, a sliding plate assembly and a driving assembly; the driving assembly comprises an air bag and an air charging and discharging control mechanism; the front end face and the rear end face of the air bag are in an accordion structure, the air bag is positioned between the cushion foaming assembly and the thigh support foaming assembly, the rear end face of the air bag is relatively fixed with the front end face of the core part of the cushion foaming assembly, and the air inflation and deflation control mechanism can inflate or deflate the air bag; the thigh support foaming assembly is propped against the front end face of the air bag under the action of the reset force. The utility model discloses a thigh holds in palm the infinitely variable control that foaming assembly stretches out the distance forward, and the passenger is located the thigh position that the thigh held in the palm between foaming assembly and the cushion foaming assembly and also can be supported by aerifing expanded air pocket, can promote passenger's riding comfort, can eliminate again that the thigh holds in the palm the influence of clearance between foaming assembly and the cushion foaming assembly to the seat aesthetic property.

Description

Seat with stepless regulation thigh support

Technical Field

The utility model relates to a seat with infinitely variable control thigh holds in palm, mainly used car seat.

Background

As shown in fig. 1-1 and fig. 1-2, the current market of automobile seats with electric or manual thigh support adjusting mechanisms comprises a cushion half-basin 1, a cushion foaming assembly 2, a thigh support foaming assembly 3, a slide plate assembly 4 and a driving assembly; the cushion foaming assembly 2 and the cushion half-basin 1 are relatively fixed, the thigh support foaming assembly 3 is arranged on the cushion half-basin 1 in a front-back sliding mode through the sliding plate assembly 4, the thigh support foaming assembly 3 is located in front of the front end face of the core part of the cushion foaming assembly 2, the sliding plate assembly 4 applies backward reset force F2 to the thigh support foaming assembly 3, and the driving assembly can be controlled to apply forward driving force F1 to the thigh support foaming assembly 3.

The automobile seat has the following defects: after the drive assembly drives the thigh support foaming assembly 3 to adjust forwards, a certain gap exists between the thigh support foaming assembly 3 and the cushion foaming assembly 2, so that the automobile seat is not comfortable and attractive.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the utility model provides a seat with infinitely variable control thigh holds in palm to there is the problem in the clearance between the foaming assembly of cushion after solving the preceding regulation of thigh support foaming assembly among the prior art.

Solve above-mentioned technical problem, the utility model discloses the technical scheme who adopts as follows:

a chair with a stepless regulation thigh support comprises a cushion half-basin, a cushion foaming assembly, a thigh support foaming assembly, a sliding plate assembly and a driving assembly; the cushion foaming assembly and the cushion half-basin are fixed relatively, the thigh support foaming assembly is arranged on the cushion half-basin in a front-back sliding mode through the sliding plate assembly, the thigh support foaming assembly is located in front of the front end face of the core part of the cushion foaming assembly, the sliding plate assembly applies backward reset force to the thigh support foaming assembly, and the driving assembly can be controlled to apply forward driving force to the thigh support foaming assembly;

the method is characterized in that:

the driving assembly is a horizontal telescopic air bag assembly comprising an air bag and an air inflation and deflation control mechanism; the front end face and the rear end face of the air bag are in an accordion structure, the air bag is positioned between the cushion foaming assembly and the thigh support foaming assembly, the rear end face of the air bag is relatively fixed with the front end face of the core part of the cushion foaming assembly, and the inflation and deflation control mechanism can inflate or deflate the air bag;

the thigh support foaming assembly is propped against the front end face of the air bag under the action of the reset force.

Thus, the utility model discloses a theory of operation as follows:

when the passenger needs to use the thigh support, the inflation and deflation control mechanism is controlled to inflate the air bag, so that the air bag is gradually inflated and expanded, namely: the accordion structure is gradually unfolded forwards, and the distance between the front end face and the rear end face of the air bag is gradually increased; therefore, the inflatable and expandable air bag applies the forward driving force to the thigh support foaming assembly to overcome the backward reset force applied by the sliding plate assembly, the thigh support foaming assembly is pushed to move forwards relative to the half basin of the cushion, the distance for the thigh support foaming assembly to move forwards is controlled by the inflation and expansion degree of the air bag, until the thigh support foaming assembly reaches the required forward extending distance of a passenger, the inflation and deflation control mechanism is controlled to stop inflating the air bag, the driving force is equal to the reset force, the forward extending distance of the thigh support foaming assembly is locked, at the moment, the passenger can normally use the thigh support, and the inflatable and expandable air bag is filled in the gap between the thigh support foaming assembly and the cushion foaming assembly, so that the thigh part of the passenger between the thigh support foaming assembly and the cushion foaming assembly can also be supported by the inflatable and expandable air bag, and the riding comfort of the passenger can be improved, and the influence of the gap between the thigh support foaming assembly and the cushion foaming assembly on the attractiveness of the seat can be eliminated.

When the passenger needs to withdraw the thigh support, the inflation and deflation control mechanism is controlled to deflate the air bag, and the air bag is gradually deflated and contracted under the assistance of backward resetting force applied by the skateboard assembly, namely: the accordion structure gradually contracts backwards, and the distance between the front end face and the rear end face of the air bag is gradually reduced; therefore, the driving force exerted by the air bag on the thigh support foaming assembly is smaller than the reset force exerted by the sliding plate assembly so as to pull the thigh support foaming assembly to move backwards relative to the half basin of the cushion, and in the process, a passenger can stop deflating the air bag by controlling the inflation and deflation control mechanism at any time so as to obtain the required forward extending distance of the thigh support foaming assembly; if the process is continued, the air bag is completely deflated finally, the thigh support foaming assembly is reset to the retraction state, and at the moment, the gap between the thigh support foaming assembly and the cushion foaming assembly is filled with the completely retracted air bag, so that the effects of improving the riding comfort of passengers and the attractiveness of the seat can be achieved;

therefore, the utility model discloses a thigh holds in palm the infinitely variable control that the foaming assembly stretches out the distance forward, and the passenger is located the thigh position that the thigh held in the palm between foaming assembly and the cushion foaming assembly and also can be supported by the inflated air pocket, can promote passenger's riding comfort, can eliminate again that the thigh holds in the palm the influence of clearance between foaming assembly and the cushion foaming assembly to the seat aesthetic property.

Preferably: the front end face and the rear end face of the air bag are rectangular faces with the same width as the cushion foaming assembly, and the upper edge of the accordion structure is flush with the top face of the cushion foaming assembly and the top face of the thigh support foaming assembly.

Preferably: the drive assembly further comprises a mounting baffle; the mounting baffle is fixed on the cushion half-basin through a screw, and the rear end face of the mounting baffle is tightly attached to the front end face of the cushion foaming assembly; the rear end face of the air bag is fixedly bonded on the front end face of the mounting baffle.

Preferably: the air charging and discharging control mechanism comprises an air pump and a controller; the air pumping and exhausting port of the air pump is communicated with the air bag through an air guide pipe, and the controller is electrically connected with the control end of the air pump through a wiring harness so as to control the air pump to inflate or deflate the air bag through the air guide pipe.

As a preferred embodiment of the present invention: the lower sliding plate is fixedly arranged on the cushion half basin, the upper sliding plate is in front-back sliding fit with the lower sliding plate, and the thigh support foaming assembly is fixedly arranged on the upper sliding plate, so that the thigh support foaming assembly can be arranged on the cushion half basin in a front-back sliding manner through the sliding plate assembly; and the top surface of the lower sliding plate is provided with a spring mounting groove, the rear end of the spring mounting groove is fixedly provided with a rear hook, the bottom surface of the upper sliding plate is provided with a front hook, the front hook extends into the spring mounting groove, and the return spring is accommodated in the spring mounting groove and is hung between the rear hook and the front hook, so that the sliding plate assembly applies backward return force to the thigh support foaming assembly.

Preferably: the air bag is positioned above the lower sliding plate, and a gap is reserved between the air bag and the lower sliding plate; the air bag applies the forward driving force to the thigh support foaming assembly through the upper sliding plate so as to avoid the friction between the air bag and the upper sliding plate during inflation and deflation.

As a preferred embodiment of the present invention: the seat also comprises a face sleeve; the surface sleeve is covered outside the cushion foaming assembly, the driving assembly and the thigh support foaming assembly, the part of the surface sleeve, which is positioned at the driving assembly and the thigh support foaming assembly, is made of elastic fabric, so that the surface sleeve can completely cover the cushion foaming assembly, the driving assembly and the thigh support foaming assembly when the thigh support foaming assembly extends out, and wrinkles are not generated due to the contraction of the elastic fabric when the thigh support foaming assembly retracts, so that the attractiveness of the seat is ensured.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses a including the air pocket with fill the telescopic air pocket assembly of level of gas control mechanism and regard as the drive assembly, and fold the structure for the organ between the preceding terminal surface of air pocket and the rear end face, realized that the thigh holds in the palm the infinitely variable control of foaming assembly distance forward, and the passenger is located the thigh position that the thigh held in the palm between foaming assembly and the cushion foaming assembly and also can be born by the inflated air pocket, can promote passenger's the travelling comfort of taking, can eliminate the thigh again and hold in the palm the influence of clearance between foaming assembly and the cushion foaming assembly to the seat aesthetic property.

Drawings

The invention will be described in further detail with reference to the following drawings and specific embodiments:

FIG. 1-1 is a schematic view of a prior art vehicle seat with a thigh rest foaming assembly in a retracted state;

FIGS. 1-2 are schematic views of a prior art vehicle seat with a thigh rest foaming assembly in an extended position;

fig. 2-1 is a schematic structural view of the chair of the present invention when the thigh support foaming assembly is in a retracted state;

fig. 2-2 is a schematic structural view of the chair of the present invention when the thigh support foaming assembly is in an extended state;

FIG. 3 is an exploded view of the structure of the present invention;

FIG. 4-1 is a schematic view of the drive assembly of the present invention when the airbag is fully deflated;

fig. 4-2 is a schematic view of the driving assembly of the present invention when the air bag is inflated;

FIG. 5-1 is a schematic view of the structure of the middle sliding plate assembly of the present invention when the thigh support foaming assembly is in a retracted state;

fig. 5-2 is a schematic structural view of the middle sliding plate assembly of the present invention when the thigh support foaming assembly is in the extended state.

Detailed Description

The present invention will be described in detail with reference to the following embodiments and the accompanying drawings to help those skilled in the art to better understand the concept of the present invention, but the scope of the claims of the present invention is not limited to the following embodiments, and all other embodiments obtained without creative work for those skilled in the art will fall within the scope of the present invention without departing from the scope of the present invention.

Example one

As shown in fig. 2-1 to 5-2, the utility model discloses a chair with a stepless adjustable thigh support, which comprises a cushion half-basin 1, a cushion foaming assembly 2, a thigh support foaming assembly 3, a sliding plate assembly 4 and a driving assembly 5; the cushion foaming assembly 2 is fixed relative to the cushion half-basin 1, the thigh support foaming assembly 3 is mounted on the cushion half-basin 1 in a front-back sliding manner through the sliding plate assembly 4, the thigh support foaming assembly 3 is positioned in front of the core front end surface 2a of the cushion foaming assembly 2, the sliding plate assembly 4 applies a backward reset force F2 to the thigh support foaming assembly 3, and the driving assembly 5 can be controlled to apply a forward driving force F1 to the thigh support foaming assembly 3;

the driving assembly 5 is a horizontal telescopic air bag assembly comprising an air bag 501 and an inflation and deflation control mechanism; an accordion structure 501c is arranged between the front end surface 501a and the rear end surface 501b of the air bag 501, the air bag 501 is positioned between the cushion foaming assembly 2 and the thigh support foaming assembly 3, the rear end surface 501b of the air bag 501 is relatively fixed with the front end surface 2a of the core part of the cushion foaming assembly 2, and the inflation and deflation control mechanism can inflate or deflate the air bag 501;

the thigh support foaming assembly 3 is pressed against the front end surface 501a of the air bag 501 by the restoring force F2.

Thus, the utility model discloses a theory of operation as follows:

when the passenger needs to use the thigh support, the inflation/deflation control mechanism is controlled to inflate the air bag 501, so that the air bag 501 is gradually inflated and expanded, namely: the accordion structure 501c is gradually expanded forward, and the distance between the front end surface 501a and the rear end surface 501b of the air bag 501 is gradually increased; thus, the inflatable air bag 501 applies the forward driving force F1 to the thigh support foaming assembly 3 to overcome the backward returning force F2 applied by the sliding plate assembly 4, so as to push the thigh support foaming assembly 3 to move forward relative to the seat cushion half basin 1, and the distance of forward movement of the thigh support foaming assembly 3 is controlled by the inflation degree of the air bag 501, until the thigh support foaming assembly 3 reaches the forward extending distance required by the passenger, the inflation and deflation control mechanism is controlled to stop inflating the air bag 501, the driving force F1 is equal to the returning force F2, so that the forward extending distance of the thigh support foaming assembly 3 is locked, at this time, the passenger can use the thigh support normally, and the inflated air bag 501 fills the gap between the thigh support foaming assembly 3 and the returning foaming assembly 2, so that the thigh part of the passenger located between the thigh support foaming assembly 3 and the seat cushion assembly 2 can also be supported by the inflated air bag 501, not only can promote passenger's riding comfort, but also can eliminate the influence of the clearance between thigh support foaming assembly 3 and cushion foaming assembly 2 to seat aesthetic property.

When the passenger needs to retract the thigh support, the inflation/deflation control mechanism is controlled to deflate the air bag 501, so that the air bag 501 is gradually deflated and contracted with the assistance of the backward returning force F2 applied by the skateboard assembly 4, that is: the accordion structure 501c gradually contracts backward, and the distance between the front end surface 501a and the rear end surface 501b of the air bag 501 gradually decreases; therefore, the driving force F1 exerted by the air bag 501 on the thigh support foaming assembly 3 is smaller than the reset force F2 exerted by the sliding plate assembly 4 so as to pull the thigh support foaming assembly 3 to move backwards relative to the seat cushion half basin 1, and in the process, a passenger can stop deflating the air bag 501 at any time by controlling the inflation and deflation control mechanism so as to obtain the required forward extending distance of the thigh support foaming assembly 3; if the process continues, the air bag 501 is completely deflated finally, the thigh support foaming assembly 3 is reset to the retracted state, and at the moment, the gap between the thigh support foaming assembly 3 and the cushion foaming assembly 2 is filled with the completely contracted air bag 501, so that the effects of improving the riding comfort of passengers and the attractiveness of the seat can be achieved;

therefore, the utility model discloses a thigh holds in palm stepless regulation of foaming assembly 3 distance that stretches out forward, and the passenger is located the thigh and holds in the palm the thigh position between foaming assembly 3 and the cushion foaming assembly 2 and also can be supported by inflatable inflation's air pocket 501, can promote passenger's riding comfort, can eliminate again that the thigh holds in the palm the influence of clearance between foaming assembly 3 and the cushion foaming assembly 2 to the seat aesthetic property.

The above is a basic implementation manner of the first embodiment, and further optimization, improvement and limitation may be performed on the basis of the basic implementation manner:

preferably: the front end surface 501a and the rear end surface 501b of the air bag 501 are rectangular surfaces with the same width as the cushion foaming assembly 2, and the upper edge of the accordion structure 501c is flush with the top surface of the cushion foaming assembly 2 and the top surface of the thigh support foaming assembly 3.

Preferably: the drive assembly 5 further comprises a mounting baffle 502; the mounting baffle 502 is fixed on the cushion half-basin 1 through screws, and the rear end face of the mounting baffle 502 is tightly attached to the front end face of the cushion foaming assembly 2; the rear end surface 501b of the air bag 501 is fixed to the front end surface of the mounting baffle 502 by bonding.

Preferably: the air charging and discharging control mechanism comprises an air pump 503 and a controller 504; the exhaust port of the air pump 503 is communicated with the air bag 501 through an air duct 505, and the controller 504 is electrically connected with the control end of the air pump 503 through a wiring harness 506 so as to control the air pump 503 to inflate or deflate the air bag 501 through the air duct 505. The air pump 503 may be commonly used in a pneumatic mechanism of the seat, such as a pneumatic waist support or a pneumatic massager, to reduce the production cost of the seat.

The air bag 501 may be a single air bag or a set of a plurality of small air bags arranged in parallel in the left-right direction.

Example two

On the basis of the first embodiment, the second embodiment also adopts the following preferred embodiments:

the sliding plate assembly 4 consists of a lower sliding plate 401, an upper sliding plate 402 and a return spring 403, the lower sliding plate 401 is fixedly mounted on the cushion half basin 1, the upper sliding plate 402 is in front-back sliding fit with the lower sliding plate 401, and the thigh support foaming assembly 3 is fixedly mounted on the upper sliding plate 402, so that the thigh support foaming assembly 3 can be slidably mounted on the cushion half basin 1 in front-back direction through the sliding plate assembly 4; further, a spring mounting groove 401a is formed on the top surface of the lower slider 401, a rear hook 404 is fixed to the rear end of the spring mounting groove 401a, a front hook is formed on the bottom surface of the upper slider 402 and extends into the spring mounting groove 401a, and the return spring 403 is accommodated in the spring mounting groove 401a and is hooked between the rear hook 404 and the front hook, so that the slider assembly 4 applies a backward return force F2 to the upper leg supporter foaming assembly 3.

The lower sliding plate 401 is preferably fixedly mounted on the seat cushion half-tub 1 through screws, and the thigh support foaming assembly 3 is preferably fixed on the upper sliding plate 402 through bonding.

The above is the basic implementation manner of the second embodiment, and further optimization, improvement and limitation can be made on the basis of the basic implementation manner:

preferably: the air bag 501 is positioned above the lower sliding plate 401, and a gap is reserved between the air bag 501 and the lower sliding plate 401; the air bag 501 applies the forward driving force F1 to the thigh support foaming assembly 3 through the upper sliding plate 402 to prevent the air bag 501 from rubbing against the upper sliding plate 402 when being inflated and deflated.

EXAMPLE III

On the basis of the first embodiment or the second embodiment, the third embodiment further adopts the following preferred embodiments:

the seat also comprises a face sleeve; the face cover is covered outside the cushion foaming assembly 2, the driving assembly 5 and the thigh support foaming assembly 3, the parts of the face cover, which are positioned at the driving assembly 5 and the thigh support foaming assembly 3, are made of elastic fabric, so that the face cover can still completely cover the cushion foaming assembly 2, the driving assembly 5 and the thigh support foaming assembly 3 when the thigh support foaming assembly 3 extends out, and wrinkles are not generated by contraction of the elastic fabric when the thigh support foaming assembly 3 retracts, so that the attractiveness of the seat is ensured.

The present invention is not limited to the above-mentioned embodiments, and according to the above-mentioned contents, according to the common technical knowledge and conventional means in the field, without departing from the basic technical idea of the present invention, the present invention can also make other equivalent modifications, replacements or changes in various forms, all falling within the protection scope of the present invention.

Claims (7)

1. A chair with a stepless regulation thigh support comprises a cushion half-basin (1), a cushion foaming assembly (2), a thigh support foaming assembly (3), a sliding plate assembly (4) and a driving assembly (5); the cushion foaming assembly (2) is fixed relative to the cushion half-basin (1), the thigh support foaming assembly (3) is mounted on the cushion half-basin (1) in a front-back sliding mode through the sliding plate assembly (4), the thigh support foaming assembly (3) is located in front of the front end face (2a) of the core part of the cushion foaming assembly (2), the sliding plate assembly (4) applies a backward reset force (F2) to the thigh support foaming assembly (3), and the driving assembly (5) can be controlled to apply a forward driving force (F1) to the thigh support foaming assembly (3);

the method is characterized in that:

the driving assembly (5) is a horizontal telescopic air bag assembly comprising an air bag (501) and an air inflation and deflation control mechanism; an accordion structure (501c) is arranged between the front end surface (501a) and the rear end surface (501b) of the air bag (501), the air bag (501) is positioned between the cushion foaming assembly (2) and the thigh support foaming assembly (3), the rear end surface (501b) of the air bag (501) is relatively fixed with the front end surface (2a) of the core part of the cushion foaming assembly (2), and the inflation and deflation control mechanism can inflate or deflate the air bag (501);

the thigh support foaming assembly (3) is pressed against the front end surface (501a) of the air bag (501) under the action of the restoring force (F2).

2. The seat with the infinitely adjustable thigh rest of claim 1, characterized in that: the front end face (501a) and the rear end face (501b) of the air bag (501) are rectangular faces with the same width as the cushion foaming assembly (2), and the upper edge of the accordion structure (501c) is flush with the top face of the cushion foaming assembly (2) and the top face of the thigh support foaming assembly (3).

3. The seat with the infinitely adjustable thigh rest of claim 1, characterized in that: the drive assembly (5) further comprises a mounting baffle (502); the mounting baffle (502) is fixed on the cushion half-basin (1) through screws, and the rear end face of the mounting baffle (502) is tightly attached to the front end face of the cushion foaming assembly (2); the rear end surface (501b) of the air bag (501) is fixedly bonded to the front end surface of the mounting flap (502).

4. The seat with the infinitely adjustable thigh rest of claim 1, characterized in that: the inflation and deflation control mechanism comprises an air pump (503) and a controller (504); the air pumping and exhausting port of the air pump (503) is communicated with the air bag (501) through an air guide pipe (505), and the controller (504) is electrically connected with the control end of the air pump (503) through a wiring harness (506) to control the air pump (503) to inflate or deflate the air bag (501) through the air guide pipe (505).

5. Seat with infinitely adjustable thigh rest according to any of claims 1 to 4, characterized in that: the sliding plate assembly (4) consists of a lower sliding plate (401), an upper sliding plate (402) and a return spring (403), the lower sliding plate (401) is fixedly installed on the cushion half-basin (1), the upper sliding plate (402) is in front-back sliding fit with the lower sliding plate (401), and the thigh support foaming assembly (3) is fixedly installed on the upper sliding plate (402); and the top surface of the lower sliding plate (401) is provided with a spring installation groove (401a), the rear end of the spring installation groove (401a) is fixed with a rear hook (404), the bottom surface of the upper sliding plate (402) is provided with a front hook, the front hook extends into the spring installation groove (401a), and the return spring (403) is accommodated in the spring installation groove (401a) and is hung between the rear hook (404) and the front hook.

6. The seat with the infinitely adjustable thigh rest of claim 5, characterized in that: the air bag (501) is positioned above the lower sliding plate (401), and a gap is reserved between the air bag (501) and the lower sliding plate (401); the air bag (501) applies the forward driving force (F1) to the thigh rest foaming assembly (3) through the upper slide plate (402).

7. Seat with infinitely adjustable thigh rest according to any of claims 1 to 4, characterized in that: the seat also comprises a face sleeve; the surface sleeve is covered outside the cushion foaming assembly (2), the driving assembly (5) and the thigh support foaming assembly (3), and the parts of the surface sleeve, which are positioned at the driving assembly (5) and the thigh support foaming assembly (3), are made of elastic fabrics.

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