KR200234068Y1 - Chair Having support department of waist - Google Patents

Abstract

The chair having a waist support portion of the present invention is the waist plate and the elastic waist support fixed to the bottom of the back of the backrest seat is formed integrally with the back plate and the backrest, the waist support plate to automatically interlock according to the operation of the backrest seat One end is fixed to the upper end of the support plate and extends to the bottom, and the other end is fixed on the frame for fixing the backrest seat and is composed of an operating connection having a connecting wire and a connecting tube surrounding the connecting wire, the connecting wire of the operating connecting end The other end is fixed to the fixing frame for hinge fixing one end of the movable frame is fixed to the upper end of the waist support plate and extended to the lower back seat plate is fixed and the one end is positioned downward from the top of the connection wire The other end is fixed and arranged adjacent to the operation plate of the movable frame, In order to protect the spine, which is the most important part of the human body, more comfortably, the lumbar support that supports the lower part of the chair according to the inclination of the chair automatically protrudes and operates so that it is possible to support the waist of the chair user. It is possible to rest easily, improve health, and easily operate, thereby increasing the ease of use.

Description

Chair with waist support {Chair Having support department of waist}

The present invention relates to a chair having a waist support, and more specifically, when the backrest is inclined backwards during the operation of the backrest of the chair, the lower back support installed in the lower part of the backrest is operated to protrude convexly forward. Support the wearer's waist comfortably, and when returning to the original position, the waist support is extended to return to the original position. It relates to a chair having a waist support that is operated.

In general, a chair that is widely used is widely used to operate the chair so that the back of the chair is folded back when rested and the work is returned to its original position in order to improve the convenience of chair use. When the chair is operated such that the backrest is operated or the seat plate and the backrest of the chair are integrated, the user's body is fully flipped when the chair is flipped backwards. There is no part to rest comfortably, even if there is a part to support the lower back part, regardless of the operation of the chair, users operate the backrest plate by turning the handle by hand, which makes the user uncomfortable to use effectively There was this.

The purpose of the present invention is to solve this problem, and to support the spine, which is the most important part of the human body, more comfortably, the lower back support supporting the lower part according to the inclination of the seat of the chair automatically protrudes and operates the chair. It is possible to support a user's waist to provide a chair with a waist support that enables to rest comfortably and promotes health and is easily operated to increase the ease of use.

This object of the present invention is a stretchable backrest plate fixed to the bottom of the backrest portion of the backrest seat is formed integrally with the seat plate and the backrest, and once the upper back of the waistrest plate to automatically interlock the waistrest plate according to the operation of the backrest plate It is fixed and extends to the bottom and the other end is fixed on the frame for fixing the backrest seat and consists of an operating connection having a connecting wire and a connecting tube surrounding the connecting wire, the connecting wire of the operating connecting end is one end of the upper back plate Is fixed to the other end is fixed to the fixed frame for hinge hinged one end of the movable frame is fixed to the lower back and the backrest seat is fixed and the connecting pipe is fixed and positioned one end downwards from the top of the connection wire and the other end is movable Lumbar support according to the present invention disposed adjacent to the operating plate of the frame It is achieved by a chair comprising a.

With reference to the accompanying drawings, a chair having a waist support according to the present invention will be understood more clearly the features and advantages by the embodiments described in detail below.

1 is a schematic perspective view of a chair having a waist supporter according to an embodiment of the present invention;

FIG. 2 is a schematic longitudinal cross-sectional view of a chair having a lumbar support shown in FIG.

Figure 3a is a cross-sectional view showing the operation of the waist support base portion in operation of the inclination of the backrest seat

Figure 3b is a cross-sectional view showing the operation of the lower back support portion when the operation of the back rest plate back

Figure 4a is an operation of the inclination of the backrest seat plate of the chair having a waist supporter according to another embodiment of the present invention

4B is an operation view when the backrest seat of the chair of FIG. 4A is returned.

Explanation of symbols on the main parts of the drawings

1. Backrest 2. Chair frame 3. Back support

31. Lumbar support plate 32. Operating connection 32a. Connection wire

32b. Connector

Chair (A) having a lower back support according to the present invention, as shown in the figure, the seat frame and the backrest seat (1) formed integrally with the backrest is a known chair frame for fixing the backrest plate (1) ( 2) attached to the top. The lower end of the backrest part 11 of the backrest seat 1 of the chair A protrudes convexly during the inclined operation of the backrest seat 1 and resiliently returns to its original position when the backrest seat 1 returns to its original position. The back support 3 to be returned is provided.

The lower back support 3 is an elastic waist support plate 31 fixed to the lower end of the back support portion 11 of the backrest seat 1 and the waist support plate 31 in accordance with the operation of the backrest seat 1 One end is fixed to the upper end 31a of the waist support plate 31 to extend automatically and extends downward, and the other end is composed of an operation connection part 32 fixed on a chair frame for fixing the backrest seat plate 1.

The operation connecting portion 32 is fixed to hinge the one end of the movable frame 21 of the chair frame 2, one end of which is fixed to the upper end of the waist support plate 31 and extends to the bottom so that the backrest seat 1 is fixed. The connecting wire 32a having the other end fixed to the frame 22 and the connecting wire 32a are internally penetrated, and one end is fixed to be positioned downward from the upper end of the connecting wire 32a and the other end is movable frame. It consists of the flexible connecting pipe 32b arrange | positioned adjacent to the operating plate 211 of 21. As shown in FIG.

The connection wire 32a is fixed on the fixing frame 22 through the through hole 211a on the operation plate 211, and one end of the connection pipe 32b is fixed to the bottom surface of the operation plate 211. It is. One end fixed on the waist support plate 31 of the connection wire 32a is installed to have an exposed distance L in which a fixed end of the connection pipe 32b is exposed at a predetermined distance in a normal position. The exposure distance L of the connection wire 32a is preferably formed to be the same or slightly longer than the distance that the operating plate 211 of the movable frame 21 is moved downward. If the exposure distance L is shorter than the downward movement distance, an excessive load is applied to the connection wire 32a, such that damage such as disconnection of the connection wire 32a may occur.

Chair (A) having a waist support portion according to an embodiment of the present invention having such a structure, as shown in the figure, when the wearer is seated and rests the backrest seat (1) back for rest, When the seat plate 1 is flipped backward, the rear of the movable frame 21 on which the seat plate 12 is fixed moves downward downward, so that the operating plate 211 fixed to the rear of the movable frame 21 moves downward. Since the connection wire 32a is pulled down while pressing down one end of the connection pipe 32b of the operation connection part 32, the connection wire 32a fixed to one end of the back support plate 31 is pulled downward and the back support plate Since the 31 pulls down, the elastic backrest plate 31 is protruded convexly forward, so that it is protruded to a position that comfortably supports the waist of the seated person. This protruding operation is the same when the backrest seat 1 is ended, the end is maintained in the same state and when the backrest seat 1 is returned to its original position, the operation plate 211 that pressed the operation connecting portion 32 As this rises, the connection wire 32a is returned to its original position while the elastic restoring force is applied to the lower back plate 31 that is bent to protrude forward by eliminating tension.

Figure 4a, 4b is an operation of the chair (A) according to another embodiment of the present invention, the connection wire 32a of the operation connecting portion 32 is fixed to the lower end of the backrest plate 31 and extends a predetermined length upwards As a structure having a structure that is bent downwardly, when the wearer is seated and leans back backrest plate (1) for rest, when the backrest seatboard (1) is turned back, the movable frame (12) is fixed Since the rear of the lower side is moved downward, the operation plate 211 fixed to the rear of the movable frame 21 is moved downward while pressing down one end of the connecting pipe (32b) of the operation connecting portion (32) connection wire ( Since 32a) is pulled out, the connecting wire 32a fixed to the lower end of the waist support plate 31 is pulled upward while pulling the waist support plate 31 upward so that the elastic waist support plate 31 is convex forward. Waist of the seated person Protruding to a position to support comfortably. This protruding operation is the same when the backrest seat 1 is ended, the end is maintained in the same state and when the backrest seat 1 is returned to its original position, the operation plate 211 that pressed the operation connecting portion 32 Since the lowering of the connection wire (32a) is to relieve the tension state is to return to the original position while the elastic restoring force is applied to the lower back support plate 31 curved to protrude forward.

The chair having a back support seat according to the present invention is pushed back while the back support seat is automatically projected to the waist part of the seat of the seat, so that the seat of the seat is pressed against the seat of the seat so that it is very convenient to use. Has an excellent effect of protecting the waist.

Claims (5)

A chair seated on a chair frame having a back seat seat securely secured to said back seat seat, The lower back portion of the backrest of the chair is characterized in that the lower back support protruding protruding forward when the backrest seat is inclined operation, and when the backrest seat is returned to its original position automatically rebound back to its original position Chair with auxiliary support The waist support plate according to claim 1, wherein the waist support plate is fixed to the lower end of the back support portion of the back support plate and is retractably convex, and the waist support plate is once connected to the waist support plate so as to automatically interlock with the operation of the back support plate. It is fixed and extends to the bottom and the other end of the chair having a back support, characterized in that consisting of the operation connection is fixed on the chair frame for fixing the backrest seat According to claim 1 or claim 2, wherein the one end is fixed to the other end fixed to the fixed frame for hinge hinged one end of the movable frame of the chair frame is fixed to the upper end of the lower back plate and extends to the lower back seat plate is fixed A connection wire which is connected to the connection wire and is inherently penetrated and one end is fixedly located at a predetermined distance from an upper end of the connection wire, and the other end is composed of a connector disposed adjacent to the operation plate of the movable frame. Chair with auxiliary support According to claim 1, One end fixed on the back support plate of the connection wire has a fixed exposure distance exposed to the fixed end of the connection pipe at a constant distance in the normal position, the exposure distance of the connection wire is the operation of the movable frame Chair with a lower back support, characterized in that the plate is formed equal to or longer than the distance to move downward. According to claim 2, The connecting portion is one end is fixed to the lower end of the backrest plate and the other end is fixed to the fixed frame for hinge hinge one end of the movable frame of the chair frame is fixed to the backrest plate, the connection wire Is inherently penetrated, and one end is fixed and positioned at a predetermined distance downward from the top of the connection wire, and the other end of the chair having a lower back support, characterized in that consisting of a connector disposed adjacent to the operating plate of the movable frame