KR20120055217A

KR20120055217A - Back seat structure of chair with lumbar supporting function

Info

Publication number: KR20120055217A
Application number: KR1020100116825A
Authority: KR
Inventors: 윤경호
Original assignee: 윤경호
Priority date: 2010-11-23
Filing date: 2010-11-23
Publication date: 2012-05-31

Abstract

PURPOSE: A seat back for a chair having lumbar vertebra supporting function is provided to keep a predetermined position of a cushion roller, thereby providing convenience to users. CONSTITUTION: A seat back for a chair having lumbar vertebra supporting function comprises a back support frame(20), cushion rollers(40), and supporting rollers(50). The back support frame consists of side walls and an upper wall. In a plurality of elastic members is fixed to side walls of the back support frame having fixed intervals. Both sides of the cushion roller have penetrated through-holes and insert into an elastic member. The supporting roller has penetrated through-holes and is located in both sides of the cushion roller. The elastic member is selected from a wire in which elasticity is given, a rubber band, and a spring.

Description

Backrest for chair with lumbar support function {BACK SEAT STRUCTURE OF CHAIR WITH LUMBAR SUPPORTING FUNCTION}

The present invention relates to a backrest for a chair having a lumbar support function, and more particularly, to a backrest frame such as a chair for various transportation means including office chairs and home or business chairs and aircraft, and a cushion roller is provided to a user's waist. That is, the present invention relates to a chair backrest having a lumbar support function, which allows the user to be in close contact with the curvature of the lumbar spine and cervical spine so as to provide comfort and comfort to the user.

In general, the chair is not only various uses, such as office, home or business chairs and chairs for various means of transportation, but also has a variety of shapes and structures have been proposed, these chairs provide comfort and comfort to the user.

The conventional backrest for comfort to the user as described above is composed of a backrest frame, a seat plate or a leg, and the inside of the backrest frame is a form of a sponge or urethane foam for providing a cushion and inserted into the backrest cloth. .

However, it is difficult to expect that the chair back installed with a sponge or urethane foam as described above does not automatically adhere to the user's waist, that is, the lumbar spine and cervical spine, thereby providing comfort and comfort to the user.

On the other hand, many chair backs have been proposed to provide comfort and comfort to the user, but the number of parts and its structure are complicated, which leads to an increase in manufacturing cost. It is true. In particular, the conventional backrest frame as described above also has the disadvantage that it can not support the user's waist, that is, the curvature of the lumbar spine and cervical spine.

Recently, the chair back has been proposed to cut the central part along the longitudinal direction of the chair back for the purpose of supporting the user's waist, ie, the cervical and lumbar spine, so that the cervical spine and lumbar spine are positioned. This is helpful, but there is a problem that can not provide comfort and comfort to the user because it can not support the entire bending of the lumbar and cervical spine according to the user's body type.

Therefore, the present invention, which was devised to solve the conventional problems as described above, a plurality of elastic members are provided at regular intervals on both sidewalls forming a backrest frame, and each cushion roller is installed at the center of the elastic member. By installing an auxiliary roller so that the cushion roller can be maintained in the right position without moving to the left and right, by allowing the cushion roller to be closely adhered to the user's waist, that is, the lumbar and cervical vertebrae, to support the cervical and lumbar spine. It is an object of the present invention to provide a backrest for a chair having a lumbar support function that can provide comfort and comfort to a user unlike the related art.

The object is, according to the present invention, in the backrest for a chair having a lumbar support function, the backrest frame consisting of both side walls and the upper wall; A plurality of elastic members fixed at regular intervals on both sidewalls of the backrest frame; Cushion rollers having both sides of the through-holes inserted into the elastic members; It is achieved by a backrest for a chair having a lumbar support function, characterized in that it consists of auxiliary rollers respectively provided on both sides of the cushion roller inserted into the elastic member having a through hole.

Here, the elastic member is preferably any one selected from the wire and elastic and the spring is given elasticity.

A fixing clip having a screw hole is installed at both ends of the elastic member, and the screw hole of the fixing clip is effectively fixed to the backrest frame as a screw.

The present invention as described above, when the user sits on the seat of the chair, the cushion roller inside the back frame automatically supports the waist, that is, the lumbar spine and cervical spine automatically according to the body shape, so that the cervical spine and lumbar spine tightly. By supporting it to guide and maintain the user's correct posture, there is an effect of providing comfort and comfort to the user.

1 is a perspective view showing an installation example of a chair back according to the invention, Figure 2 is a side cross-sectional view of the backrest for a chair according to Figure 1, Figure 3 is a cross-sectional view according to Figure 1, Figure 4 is a seat plate is vacancy 5 is an exemplary diagram illustrating a state, and FIG. 5 is an exemplary diagram illustrating a state where a user is seated on a seat.

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

1 is a perspective view showing an installation example of a chair back according to the present invention, Figure 2 is a side cross-sectional view of the chair back according to Figure 1, Figure 3 is a cross-sectional view according to FIG.

As can be seen in these figures, the backrest 10 for a chair according to the present invention includes a backrest frame 20, a plurality of elastic members 30 installed in the backrest frame 20, and the elastic member 30. Cushion rollers 40 and a plurality of auxiliary rollers 50 are respectively provided on the backrest 10 for the chair is used is inserted into the backrest cloth.

More specifically, the backrest frame 20 according to the present invention is composed of both side walls 21 and 22 and the upper wall 23 formed as metal or synthetic resin and wood, and to some extent toward the front when viewed from the side. It is preferable to be formed in a curved shape, but the side shape does not necessarily need to be curved here.

A plurality of elastic members 30 fixed at regular intervals in the front height direction of the backrest frame 20 are provided with an elastic force. Such elastic members 30 are elastic wires, elastic wires, and springs. It is preferable that any one selected from among the above, the elastic member 30 may be employed if the material having an elastic force in addition to these and easily cut or not lose the elastic force.

And both ends of the elastic member 30 is provided with a fixing clip 60 having a screw hole 61, the screw hole 61 of the fixing clip 60 is inserted into the screw 62, both side walls 21 By fixing to 22, the elastic member 30 can maintain the firmness in the backrest frame 20.

Here, the cushion roller 40 has a through-hole 41 of both sides through the shape is to insert the cushion roller 40 into the elastic member 30, the cushion member 40 also has an elastic force It may be substituted with materials such as soft synthetic resin, rubber or urethane foam and sponge.

On the other hand, in the present invention, the auxiliary roller 50 having a through hole 51 is inserted into both ends of the cushion roller 40 so that the cushion roller 40 can always be located at the center of the elastic member 30. By doing so, the left and right flow of the cushion roller 40 can be prevented.

The backrest 10 for a chair according to the present invention configured as described above is installed on the backrests of various chairs, and a usage example thereof will be described.

3 is an exemplary view showing a state in which the seat plate is vacant.

As can be seen in this figure, when the user is a vacancy not sitting on the seat of the chair, the cushion roller 40 cannot be moved toward the inside of the chair back 10. This is because the user is not sitting on the seat plate of the chair and therefore there is no pressing force applied to the backrest frame 20.

4 is an exemplary view illustrating a state in which a user is seated on a seat plate.

As can be seen in this figure, when the user sits on the chair's seat plate and presses the back of the chair back 10, the cushion roller 40 inserted in each elastic member 30 to the user's body shape. It fits automatically according to the waist, that is, the lumbar and cervical flexion, and supports the lumbar and cervical spine tightly. The reason is possible because the cushion roller 40 supports the user's waist, that is, the degree of bending of the lumbar spine and cervical spine, and the cushion roller 40 is supported by the elastic member 30 in tension.

Here, it is important that the cushion roller 40 according to the present invention is always located at the waist of the user, that is, the lumbar spine and cervical spine. This is possible because it prevents. As a result, the elastic member 30 according to the present invention imparts front and rear elastic force by its own elastic force, and the plurality of cushion members 40 inserted into the elastic member 30 support the cervical spine and lumbar of the waist tightly. It can provide comfort and comfort to the user.

As described above, the chair backrest having a lumbar support function according to the present invention is installed in a backrest frame such as a chair for office, home, or business, and a legless chair, an aircraft chair, a bus chair, a cruise ship chair, and the user's waist, that is, the lumbar spine and the like. The cushion roller is automatically attached to the cervical spine to provide comfort and comfort to the user.

10: chair back, 20: back frame, 21, 22: both side walls, 23: upper wall, 30: elastic member, 40: cushion roller, 41: through hole, 50: auxiliary roller, 51: through hole, 60: fixed clip , 61: screw hole, 62: screw

Claims

In the chair back having a lumbar support function,
A backrest frame 20 composed of both side walls 21 and 22 and an upper wall 23;
A plurality of elastic members 30 fixed at regular intervals on both sidewalls 21 and 22 of the backrest frame 20;
A cushion roller 40 having both sides of the through hole 41 and inserted into the elastic member 30;
A backrest for a chair having a lumbar support function, comprising: auxiliary rollers 50 provided on both sides of the cushion roller 40 inserted into the elastic member 30 and having a through hole 51 therethrough.

The method of claim 1,
The elastic member 30 is a chair back having a lumbar support function, characterized in that any one selected from the elastic wire and elastic cord and spring.

The method of claim 1,
Fixing clips 60 having screw holes 61 are installed at both ends of the elastic member 30, and screw holes 61 of the fixing clips 60 are provided to the backrest frame 20 as screws 62. Chair back having a lumbar support function, characterized in that the fixed.