KR20120118575A

KR20120118575A - Chair

Info

Publication number: KR20120118575A
Application number: KR1020110036018A
Authority: KR
Inventors: 이말순
Original assignee: 이말순
Priority date: 2011-04-19
Filing date: 2011-04-19
Publication date: 2012-10-29

Abstract

The present invention relates to a chair seat having a backrest function and a chair using the same, and more particularly, having a backrest function made by improving its shape without installing and manufacturing a separate backrest or waist cushion. A seat for a chair and a chair configured to use such a seat such that the back or waist support has a cushion through its own elasticity.

Description

Seat seat with backrest function and chair using it {chair}

The present invention relates to a seat for a chair having a backrest function and a chair using the same, and more particularly, a backrest function made by improving its shape without installing and manufacturing a separate backrest or a waist cushion. A seat for a chair and a chair configured to use such a seat so that the back or the back support has a cushion through its own elasticity.

In general, conference chairs, or so-called stacking chairs, which are installed and used in a place used by several people, such as a break room, a conference room, or a lecture room, include a seat plate and a back plate on which a user is actually seated in a metal frame forming an overall skeleton.

Since the net is fixedly coupled, not only can be manufactured at a low cost by a simple structure, but also has the advantages of ease of transportation and convenience of storage by stacking.

On the other hand, in the state of sitting on the chair in general, the load of the upper body of the seated person is concentrated on the lumbar spine and pelvis of the waist, the stress is applied to the lumbar spine and pelvis and the muscles around them, accompanied by fatigue or pain. Therefore, recently, by the ergonomic research to distribute the load evenly, the office chair of the type installed on the back side by providing a separate backrest structure having elasticity or cushion has appeared, most office chairs In the case of back and forth by mechanical mechanism

It is equipped with a swinging function.

However, in order to manufacture and install a separate waist support or to give the back and forth swing function back and forth by mechanical mechanism, not only the production cost including the production cost and assembly time is increased, but also the structure of the stacking chair described above. If it is applied as it is, the load of the chair is heavy, the transportation is not easy, and the volume is large, so that the stacking is difficult.

Therefore, this configuration is applied only to the high-end type among the office chairs, and it is necessary to change the arrangement frequently by a large number of people, stacking and storing them as needed, and taking them out as needed. It is difficult to apply to stacking chairs for lecture rooms or conference rooms that require different functionality.

The present invention has been made to solve the above problems, the first object of the present invention is to improve the structure and shape of the seat itself constituting the back plate and the seat plate of the chair to provide a seat having a waist support having a simple structure Another object of the present invention is to provide a chair having a back structure or a back support having a cushion by its elasticity by a simple structure using the seat, and furthermore, assembling between the seat and the frame in manufacturing such a chair. It is to provide a chair having an improved assembly structure to simplify.

The above object is achieved by the following constitutions provided in the present invention.

The seat having a backrest function according to the present invention, the back side of the seat of the seat body side of the seat body made of a plate-like synthetic resin or wood with high elasticity, the other side except the one side connected to the seat body is cut in the seat It characterized in that the waist support piece is formed integrally with the seat body to protrude curvedly to support the waist portion.

When the sheet body according to the present invention is manufactured through injection, it is possible to implement by simply replacing the mold, it is preferable in terms of productivity.

In the chair using the seat according to the present invention, the back portion or the lower back portion formed on the seat body is alternatively supported / fixed through the support bar of the frame, so that the back is not supported / fixed by the support bar of the frame. If not, the cushion function of any one component can be further improved.

In addition, in the assembly structure of the seat and the frame according to the present embodiment, the sheet can be assembled to the frame in the form of one-touch without using a separate mouthpiece, it can be expected to improve the productivity through a simple assembly process.

1 is a front perspective view showing the overall shape of the sheet provided as a preferred embodiment in the present invention,
Figure 2 is a front perspective view showing other embodiments of the seat having a backrest function according to the present invention,
Figure 3 is a rear perspective view showing preferred embodiments of the seat used in the chair according to the present invention,
4 and 5 are views showing the preferred embodiments of the chair according to the present invention, Figure 4 (a), (b) is a front perspective view and a rear perspective view of the chair of the type of the back support is fixed to the support bar of the frame 5 (a) and (b) are front and rear perspective views of a chair having a back portion fixed to a support bar of a frame,
6 (a) and 6 (b) are assembled states of the chair shown in FIGS. 4 and 5, respectively.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the seat having a backrest function and a chair using the same according to the present invention.

1 is a front perspective view showing the overall shape of the sheet provided as a preferred embodiment in the present invention, Figure 2 (a), (b) is another embodiment of the seat having a backrest function according to the present invention Figure 3 is a front perspective view, Figure 3 is a rear perspective view showing a preferred embodiment of the seat used in the chair according to the present invention (A) is a hook-type fixing portion is provided on the back of the back support piece, (B) is the back portion It shows the shape provided on the back.

Referring to FIG. 1, the seat 1 having a waist support function according to the present embodiment includes a back plate part of the seat body 10 bent in an L shape in which the back plate part 11 and the seat plate part 12 are integrally formed. It is configured to include a waist support piece 13 formed integrally with the seat body.

Here, the sheet body 10 may be made of a plate-like synthetic resin material or wood having high elasticity that is elastically deformed / recovered by an external force, for example, a load of a seated person. In particular, the sheet body 10 may be easily manufactured by injection molding. Can be made. In addition, the seat body 10 has a shape in which the back plate part 11 and the seat plate part 12 are integrally formed as shown in the present embodiment, and in terms of assemblability, Although preferably, the back plate and the seat plate may be separated.

All.

On the other hand, the waist support piece 13 is configured to support the lumbar spine of the seat by protruding from the front so as to have a different elastic force from the back plate 11 at a position where the seat of the back of the back plate 11 is supported.

In detail, as shown in FIG. 1, the waist support piece 13 is a side portion 13b of the back plate part 11 of the seat body 10 in which the waist part of the seater is supported, except for the lower side 13a. ) Is cut so as to be separated from the back plate part 11 of the seat body 10, and this cut and separated portion is formed by projecting the front surface to be curved to support the lumbar spine of the seated person.

Here, the shape of the waist support piece 13, as shown in Figure 1, leaving the lower portion so that the seat plate portion 12 and the waist support piece 13 is naturally connected to the other portion cut to form a generally rectangular incision However, in actual production, it may be manufactured in various shapes, including the shape shown in FIG. 2, according to external requirements or functional requirements. Looking at other examples shown in FIG. 11) shows the shape of the waist support piece 13A formed by cutting the lower part and the side part, leaving only the upper part connected to the upper part, and in (b) leaving only one side connected to both sides of the back part 11, respectively. It shows the shape formed by opposing the pair of waist plate needle 13B separated from the back plate by cutting the remaining portions of the center side.

When the waist support piece 13 is formed on the seat body 10 itself, the back portion 11 and the waist support piece 13 have different elasticities, and thus, by manufacturing a separate waist support as in the prior art, Without installing on the seat body will be able to stably support the waist of the seated person.

When the seat 1 according to the present invention having the above-described configuration is designed to have a stable standing structure, the seat part 12 may be subjected to some deformation, such as supplementing cushioning properties or installing armrests, or by itself a leg part. Can be utilized as a so-called sitting chair not equipped

It is also possible to use it as a component in the manufacture of a standing chair, in particular a stacking chair, in combination with the frame, as described below.

When combined with the frame and used as a part of the upright chair, as shown in (a) or (b) of FIG. 3, a hook is attached to the back support 13 or the back 11 of the seat body 10. A semi-circle is provided on both sides of the bottom face of the seat plate part 12, and optionally provided with a mold fixing part 14

By providing the mold engaging portion 15, it is possible to configure the seat (1, 1 ') having a backrest function according to the present invention so that easy assembly with the frame can be implemented, for this chair according to the present invention I will explain more in the section that describes.

Hereinafter will be described in detail with reference to a preferred embodiment of the chair made by combining the seat according to the present invention with a frame.

4 and 5 of the accompanying drawings are shown in the preferred embodiments of the chair according to the invention, respectively, Figure 4 (a), (b) is the front of the chair of the type of the back support is fixed to the support bar of the frame A perspective view and a rear perspective view, FIGS. 5A and 5B are front and rear perspective views of a chair having a back portion fixed to a support bar of a frame. 6A and 6B are assembly state diagrams illustrating an assembly state of the chairs illustrated in FIGS. 4 and 5.

As shown in FIGS. 4 to 5, the chairs 100 and 100 ′ according to the present invention have an L-shaped seat 1 and 1 ′ in which the back plate part 11 and the seat plate part 12 are integrally formed. It is attached to the seat.

As shown in the drawing, the frame 20 is made of a metal material and forms a structure to form the overall skeleton of the chair. The back plate portion 11 and the seat plate portion 12 of the seats 1 and 1 'are formed. The seating portion 21 bent in an L shape like the seat is formed above the leg portion 22 supporting the seat portion, and the left and right sides of the seating portion 21 are armrest portions 23 having a predetermined height. Is formed.

On the other hand, the armrest 23 may be provided with a separate handle 23a as shown in the figure.

The seats 1 and 1 'are cut and curved so that the sides 13b except the lower side 13a are separated from the seat body on the back portion 11 of the seat body 10 on which the waist of the seater is seated. It is a seat having a backrest function according to the present invention described above formed waist support piece 13 protruding in front of the fork.

These seats (1, 1 ') is seated on the L-shaped seating portion 21 of the frame 20 is coupled to form a single chair (100, 100'), in this case 4 or 5 As can be seen, only the rear surface of either the back 13 or the back 11 of the seat 1, 1 ′ of the seat 1 or 11 is supported on the back of the frame 20. Alternatively fixed / supported to (21a, 21a '). Therefore, the other side 11 or 13 whose rear surface is not fixed by the support bars 21a and 21a 'of the frame 20 has the inherent elasticity and the curved shape of the material, and thus the load and the movement of the seated person at the time of sitting. The resulting impact provides efficient cushioning while elastically deforming / recovering.

As shown in FIG. 4, the chair 100 shown in FIG. 4 is fixed / supported to a portion of the support bar 21a of the frame 20 in which the back surface of the waist Q needle 13 is slightly bent and protruded toward the front side, and the back plate part. 11 is configured to have a cushion, and in the chair 100 shown in FIG. 5, the waist support piece 11 is fixed / supported to a portion of the support bar 21a 'of the straight frame 20 to be fixed. Unsupported waist support piece 13 is configured to have a cushion.

Meanwhile, the back plate portion 11 and the seat plate portion 12 are integrally assembled to the present invention for seating and fixing the seats 1 and 1 'bent into an L shape to the seating portion 21 of the frame 20. Referring to the structure, as shown in FIG. 6, the support bar 21a in the horizontal direction formed on the back side of the frame 20 is formed on the back side of the backrest 13 or the back portion 11 of the seats 1 and 1 ′. And a hook-type fixing part 14 capable of fastening 21a '), and support bars 21b positioned at the bottom of the seat plate part 12 of the frame 20 on both sides of the bottom of the seat plate part 12. The semi-circular locking portion 15 is formed to be press-fitted into it. In the process of seating and assembling the seats 1 and 1 'to the L-shaped seating part 22 of the frame 20 by this structure, first formed on the back of the lower back 13 or the back plate 11 After the hook-type fixing portion 14 is fixed to the support bars 21a and 21a 'of the frame 20, the semi-circular locking portion 15 formed on the bottom surface of the seat plate portion 12 is positioned below the frame 20. The sheet 1, 1 'is fixed to the frame 20 by being press-fitted in the upper part so as to be caught by the support bar 21b.

1, 1 ': sheet
10: seat body 11: seat plate
12: Back part 13, 13A, 13B: Waist support
14: hook type fixing part 15: semi-circular locking part
20: frame 21: seating part
22: leg 23: armrest
100, 100 ': chair

Claims

Waist shaped to protrude curved to support the seat of the seat of the seat by cutting the remaining side except for one side connected to the seat body to the seat of the seat on the back of the seat body made of plate-like synthetic resin or wood with high elasticity Chair seat having a backrest function characterized in that the support piece is formed integrally with the seat body.

It is made of a plate-like synthetic resin material or wood having high elasticity, the sheet made of a bent sheet body consisting of the back plate and the seat plate unit is fixed to the frame forming the overall skeleton is supported;
The seat is provided with a seat body-integrated waist support piece of a protruding shape so as to support the waist portion of the seated body by cutting the other side except the lower side connected to the seat body on the back of the seat body;
The back surface of the waist support piece of the seat