KR20100135389A

KR20100135389A - Lumbar support apparatus for vehicle seat

Info

Publication number: KR20100135389A
Application number: KR1020090053727A
Authority: KR
Inventors: 김해탁
Original assignee: 한일이화주식회사
Priority date: 2009-06-17
Filing date: 2009-06-17
Publication date: 2010-12-27

Abstract

The present invention relates to a lumber support device for a vehicle seat, which can reduce cost, reduce assembly, improve productivity, and reduce weight by reducing the number of parts while maintaining the function of supporting the lumbar region of the seat occupant. Rather, little noise is produced during operation.

Description

Lumber support apparatus for vehicle seat

The present invention relates to a lumber support device for supporting the lumbar spine of a vehicle seat occupant.

In general, the seat of the vehicle is to maintain the passenger's attitude in an optimal state, and comprises a seat back for supporting the back of the passenger and a seat cushion for supporting the thigh at the hip.

The seat back and the seat cushion are each structured to form a skeleton by a seat back frame and a seat cushion frame, wherein the seat back frame 1 supports the lumbar region of the seat occupant as shown in FIGS. 1 and 2. In many cases, the lumber support device is installed to help a comfortable ride and safe driving.

The lumber support device is configured such that the degree of support of the lumbar vertebrae varies depending on the lumber support plate 3 protruding toward the seat occupant, that is, the lower end of the lumber support plate 3 is the seat back frame ( 1) is fixed to the lower mounting bracket (5) for connecting the left and right sides of the rotating state is installed, and the upper mounting bracket for connecting the left and right sides of the seat back frame (1) above the lumber support plate (3) 7) is fixedly installed.

A lower end of the support frame 9 is fixedly coupled to the lower mounting bracket 5, and both ends of the support frame 9 are spaced left and right and then bent upward to be fixed to the upper mounting bracket 7.

The lumber support plate 3 is coupled to the upper end is fitted to the support frame 9 is a structure capable of sliding up and down.

Two rollers 11 are rotatably mounted on the lower mounting bracket 5 so as to be spaced apart from each other, and the rollers 11 are installed to catch the operation cable 13, and Both ends are installed by being hung on the upper mounting bracket 7 after being turned upward.

A connecting ring 15 is inserted into an intermediate portion of the actuating cable 13 positioned between the two rollers 11, and one end of the operation cable 17 is integrally coupled to the connecting ring 15. The other end of the operation cable 17 is connected to the cable actuator 19 mounted on one side of the seat back frame 1 through the upper middle portion of the lumber support plate 3, the cable actuator 19 One end of the operation lever 21 for operating the cable actuator 19 is rotatably coupled.

The operation cable 17 is wound or unwound by the cable actuator 19 according to the rotation direction of the operation lever 21.

Therefore, when the operation lever 21 is repeatedly operated in the direction of arrow R1 in the state shown in FIG. 1, the operation cable 17 is pulled while being wound on the cable actuator 19, and the operation cable 17 is operated. Connecting ring 15 coupled to the end of the pull the middle portion of the operating cable 13 to the upper side as shown in Figure 2, accordingly, the operating cable 13 is a triangle that is gradually pointed upward in the state indicated by the dotted line Is converted.

As described above, as the middle portion of the actuating cable 13 is pulled upward, both ends of the actuating cable 13 move while pulling the upper side of the lumber support plate 3 downward, and as a result, the lumber support plate ( 3) the middle part is deformed into a shape that swells toward the front of the seat back is in a state of pressing and supporting the lumbar region of the seat occupant forward.

On the contrary, when the operation lever 21 is repeatedly operated in the direction of the arrow R2 in the state shown in FIG. 1, the lumber support plate 3 that has been moved downward while the operation cable 17 wound on the cable actuator 19 is released. The upper side of the) is moved upward again, and thus the lumber support plate 3, which has been deformed into a bulging shape forward of the seatback, is recessed into the seatback by its restoring force to press the lumbar region of the seat occupant forward. And the state before supporting.

However, the conventional lumber support device as described above is a component that is used a large number of parts, there are a number of disadvantages such as cost increase, assembly and productivity decrease, weight increase.

In addition, the conventional lumber support device has a disadvantage in that noise is generated during operation of the operation lever 21, the cable actuator 19, the operation cable 17, the operation cable 13, and the like.

Accordingly, the present invention has been made to solve the above problems, while maintaining the existing role of supporting the lumbar region of the seat occupant while reducing the number of parts through cost reduction, assembling and productivity improvement, weight reduction It is an object of the present invention to provide a lumber support device for a vehicle seat that can be planned, and furthermore, to minimize the occurrence of noise, thereby helping to improve ride comfort.

Lumber support device of the present invention for achieving the above object, the air bag member is fixed to the bracket provided in the seat back frame; A lumber support plate fixedly mounted to the front surface of the air bag member to support the lumbar region of the seat occupant; An air hose member having one end connected to the air bag member and the other end fixed to the seat back frame while passing through the seat back frame; And an air tube member connected to the end of the air hose member and having an air suction port to suck outside air when the volume is variable and to inject the air pocket member through the air hose member.

Lumber support device according to the present invention, while maintaining the function of supporting the lumbar region of the seat occupant as it is possible to reduce the number of parts through the reduction of the number of parts, improve the assembly and productivity, weight reduction, etc., during operation Almost no noise is produced.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 to 5, the seat back frame 51 is fixed to the upper mounting bracket 53 and the lower mounting bracket 55 to connect the left and right sides of the seat back frame 51, the top mounting The upper and lower ends of the air pocket member 57 having a predetermined size are fixedly installed to the bracket 53 and the lower mounting bracket 55, respectively.

The air bag member 57 should be made strong enough to withstand the pressure applied by the upper body of the occupant.

Lumber support plate 59 is fixedly mounted on the front surface of the air bag member 57 to assist the lumbar region of the seat occupant to help a comfortable ride and safe driving.

One end of the air hose member 61 is connected to the air bag member 57, and the other end of the air hose member 61 penetrates the side surface of the seat back frame 51 of the seat back frame 51. It is fixed on the side.

An air tube member 63 is connected to an end of the air hose member 61 that penetrates the side surface of the seat back frame 51, and an air inlet 65 for inhaling outside air is integrated in the air tube member 63. It is provided with.

The air tube member 63 is a stretchable part, and when the seat occupant presses by hand to reduce the volume, the outside air is sucked through the air inlet 65, and when released, the volume is not reduced to its original state. It is elastically restored.

The outside air sucked into the air tube member 63 through the air inlet 65 is repetitively operated by the air tube member 63 to the air bag member 57 through the air hose member 61. Is injected.

An embodiment of the present invention includes a check valve member 67 installed at a connection portion of the air hose member 61 and the air tube member 63.

The check valve member 67 has a configuration strung with a spring 69, and is opened only when the outside air sucked into the air tube member 63 moves to the air hose member 61, on the contrary, the air hose. It serves to block the flow of air to prevent the air in the member 61 to move toward the air tube member (63).

In addition, the present invention is configured to further include an air bleed valve member 71 is connected to the air hose member 61 so as to forcibly discharge the air present in the air bag member 57 to the outside.

The amount of air remaining in the air bag member 57 can be adjusted by the operation of the air vent valve member 71.

The air vent valve member 71 is connected to a predetermined portion of the air hose member 61 existing between the air bag member 57 and the check valve member 67 is installed.

The operation of the embodiment of the present invention will be described below.

When the occupant of the vehicle seated on the seat repeatedly presses and releases the air tube member 63 by hand, the air tube member 63 is reduced to its original volume and then returned to its original state. The restoring operation is repeated. At this time, the outside air is sucked into the air tube member 63 through the air inlet 65, and the air sucked into the air tube member 63 opens the check valve member 67. It flows into the air hose member 61.

Air introduced into the air hose member 61 is introduced into the air bag member 57 to gradually inflate the air bag member 57, the lumber support plate 59 coupled to the air bag member 57 is a seat back While gradually deformed to the shape of the bulge in front of the lumbar region of the seat occupant is in a state to support and press forward.

As a result, the seat occupant is supported by the lumbar support plate 59 so that the seat occupant can have a comfortable ride and safe driving.

When the seat occupant operates the air bleed valve member 71, the air remaining in the air bag member 57 is discharged to the atmosphere and discharged, so that the amount of air remaining in the air bag member 57 is desired by the seat occupant. It can be adjusted accordingly.

Accordingly, the lumber support device according to the present invention is an air bag member 57, a lumber support plate 59, an air hose member 61, an air tube member 63, a check valve member 67, a valve member for bleeding air Comprising of 71, there is an advantage that can be reduced in cost, assembly and productivity, weight reduction and the like through the reduction of the number of components than the conventional device described above with reference to Figs.

In addition, since the apparatus of the present invention is configured to use the air tube member 63 with little noise, the operation lever 21, the cable actuator 19, the operation cable 17, the operation cable 13, and the like. There is also an advantage that can minimize the generation of noise compared to the conventional device using the.

1 and 2 are views for explaining a conventional lumber support device,

3 to 5 are diagrams for explaining the lumber support apparatus according to the present invention.

51-Seat back frame 57-Air bag member

59-Lumber support plate 61-Air hose member

63-Air tube member 65-Air intake

67-Check valve member 71-Valve for bleeding air

Claims

An air bag member 57 fixed to the bracket provided in the seat back frame 51;

A lumber support plate 59 fixedly mounted to the front surface of the air bag member 57 to support the lumbar region of the seat occupant;

An air hose member 61 connected to the air bag member 57 and fixed to the seat back frame 51 while the other end penetrates the seat back frame 51;

An air tube member connected to the end of the air hose member 61 and provided with an air suction port 65 so as to suck the outside air when the volume is variable and to be injected into the air bag member 57 through the air hose member 61 (63);

Lumber support device for a vehicle seat comprising a.

The air hose member 61 is connected to the air tube member 63 and is opened only when the outside air sucked into the air tube member 63 moves to the air hose member 61. A check valve member 67 for blocking the flow of air to prevent the air in the air hose member 61 from moving toward the air tube member 63;

Lumber support device for a vehicle seat further comprising a.

The air vent valve member (71) connected to the air hose member (61) so as to forcibly discharge air existing in the air bag member (57) to the outside;

Lumber support device for a vehicle seat further comprising a.

The seat back frame 51 is fixed to the upper mounting bracket 53 and the lower mounting bracket 55 for connecting the left and right sides of the seat back frame 51;

The air bag member 57 is fixed to the upper and lower end portions are respectively fixed to the upper mounting bracket 53 and the lower mounting bracket (55);

Lumber support device for a vehicle seat, characterized in that.

The method of claim 3, wherein the air vent valve member 71 is connected to a predetermined portion of the air hose member 61 which is located between the air bag member 57 and the check valve member (67);

Lumber support device for a vehicle seat, characterized in that.