KR20150046490A

KR20150046490A - Folding chairs

Info

Publication number: KR20150046490A
Application number: KR20130125781A
Authority: KR
Inventors: 차민수
Original assignee: 차민수
Priority date: 2013-10-22
Filing date: 2013-10-22
Publication date: 2015-04-30

Abstract

The present invention relates to a foldable chair which is configured such that a back portion of a backrest to which a back portion of a user of a folding chair is rested is formed of a mesh or fabric so that ventilation is smooth and the fixing of the mounting portion can be easily fixed without any means such as a stapler, And a backrest rotatably coupled to the fixed leg is rotatably supported at a suitable angle by a rotating device so that the backrest is supported by the backrest after the person is seated, To provide durability and comfort. &Lt; Desc / Clms Page number 2 >
In accordance with a preferred embodiment of the present invention, there is provided a foldable chair comprising a back plate folded in a close contact with a backrest so as to be foldable, the back plate having a rectangular fixed frame shape, A fixing part formed of a mesh or a fabric having a size corresponding to the fixed frame and a thin plate-like fixing part padded around the fixing part, so that the outer end of the fixing part is bent inward together with the fixing part, And is fixed to be fitted in the groove.

Description

Folding chairs

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foldable chair, and more particularly, to a foldable chair, which is configured such that a back portion of a backrest to which a back portion of a user of a folding chair is rested is composed of a mesh or fabric, The backrest is rotatably coupled to the stationary leg. The backrest is rotatably supported on the backrest by the rotation device. The backrest is rotated at an appropriate angle, Folding chairs that can provide durability and comfort by limiting the maximum angle of rotation to double or triple.

As a background of the present invention, there is a patent registration No. 1062059 entitled "Folding chair in which the angle of the backrest is adjusted" (Patent Document 1). 8, a backrest 2 provided at a rear upper portion of the seat 100, an armrest 4, a front support leg hinged to both sides of the center of the seat 100, And a support leg 3 composed of a rear supporting leg 34 hinged to both rear sides of the seat 100. The seat 100 is folded when it is folded and is brought into close contact with the back 2, Wherein an elastic rotation means R is provided at a connecting portion between the armrest 4 and the support leg 3 so that the backrest 2 can be folded back when the user is seated, (R) includes a first member (5) having a fitting member (51) fitted to the front support leg (32), a long axis (62) fitted to the rear support leg (34) A second member 6 which is engaged with and rotatably engaged with the first and second members 5 and 6 and which is formed at an end of the armrest 4, (8) inserted into the first and second members (5, 6) so as to impart rotational elasticity to the armrest (4) and to be engaged with the disc member (8) And a torsion spring (7). &Lt; Desc / Clms Page number 2 >

However, the above-mentioned background art restricts the angle of rotation of the backrest only by the elasticity of the torsion spring 7, so that it is difficult to stably rotate and restrain the user, and since the restriction of the rotation range is not limited during rotation of the backrest, The rotation function of the backrest and the rotation angle can not be controlled.

Patent No. 1062059 "Foldable chair with adjustable angle of backrest"

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a foldable stool for a folding chair, The present invention provides a folding chair which can be easily fixed without any means and can give sufficient tension to the mounting portion.

In addition, the backrest, which is rotatably coupled to the fixed leg, is provided with durability and comfort by restricting the maximum angle of rotation of the backrest in double or triple rotation while the backrest is rotated at an appropriate angle by the rotation device The purpose of the folding chair is to provide.

The backrest comprises a fixed frame having a rectangular fixed frame shape with an empty central portion and a coupling groove formed on an outer periphery thereof, And an outer end of the mounting portion is bent inward with the fixing piece and is inserted and fixed in the coupling groove of the fixing frame. The present invention relates to a folding chair.

The foldable chair is characterized in that the fixed frame of the backrest is formed in an arcuate shape in which the central portions of both side portions are bent.

The foldable chair is configured such that a seat is folded and folded so as to be brought into close contact with the backrest. The backrest includes a fixing member fixed to the fixing leg at a connecting portion fixed to the fixing leg, And an elastic rotating means composed of a rotating member fixed to the backrest and a spring inserted into the inside of the stationary member and the rotating member so as to impart rotational elasticity to the backrest so that the backrest can be bent back The member includes a fixing body having a cylindrical shape with one side opened and having a fixing portion fixed to a fixing leg on one side of the outer periphery, a rotary groove as an internal space of the body, and a projection formed on one side of the inner periphery of the rotary groove And a coupling hole formed through the center of the main body in a longitudinal direction thereof, A first rotary coupling part formed to be integrally or detachably coupled and formed to protrude in a cylindrical shape and penetrate a coupling hole at a central part thereof; a second rotary coupling part spaced apart from the outer periphery of the first rotary coupling part in a ring- And a rotary coupling step is formed such that the arc height of the fixed length is low, and the second rotary coupling part is formed such that the fixing jaw of the fixing member rotates at the coupling step, The spring inserted into the inside of the coupling member of the rotary member is fixed to the coupling jaw between the fixing jaw and the rotary member of the fixing member so that the fixing jaw of the fixing member rotates by the length of the arc of the coupling jaw of the rotary member, And the backrest can be rotated and restored by the elasticity of the backrest.

In addition, the fixing member may further include a rotation step formed by protruding outwardly in the longitudinal direction of the pair of the fixing members so as to face the open end of the fixing body, wherein the rotation member is disposed at a position corresponding to the rotation step of the fixing member of the rotation body Wherein a rotation groove is formed by a length of a predetermined arc that is rotated when the rotation jaw rotates so that the rotation jaw of the fixing member rotates only by the length of the arc of the rotation groove of the rotation member.

The folding chair of the present invention is configured such that the back portion of the backrest to which the back portion of the user of the folding chair is rested is formed of a mesh or fabric so that the ventilation is smooth and the fixing of the mounting portion is easily fixed without any means such as a stapler, It is possible to give sufficient tension to the mounting part.

Further, the backrest, which is rotatably coupled to the fixed leg, is rotatably supported by the rotation device so that the backrest can be rotated at an appropriate angle when the person is seated on the backrest, thereby restricting the maximum angle of rotation in two or three. There is a very useful effect that can be provided.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments of the invention and, together with the description, serve to explain the principles of the invention, Shall not be construed as limiting.
1 is a perspective view showing a folding chair of the present invention.
2 is an exploded perspective view of a backrest of a folding chair of the present invention.
3 is a sectional view of the backrest of the folding chair of the present invention.
4 is an exploded perspective view of the elastic rotating means of the present invention.
5 is an operational state view of the backrest by the elastic rotation means of the present invention
6 is an operational state diagram of the elastic rotating means of the present invention.
7 is a side view showing the rotation state of the backrest of the folding chair of the present invention.
8 is an exploded perspective view showing a folding chair in which the angle of the conventional backrest is adjusted.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the embodiments shown in the accompanying drawings, but the present invention is not limited thereto.

Hereinafter, the technical structure of the present invention will be described in detail with reference to the preferred embodiments.

Fig. 1 is a perspective view showing a folding chair of the present invention, Fig. 2 is an exploded perspective view of a backrest of a folding chair of the present invention, and Fig. 3 is a sectional view of a backrest of the folding chair of the present invention.

The folding chair 1 according to the first embodiment of the present invention is characterized in that the backrest 20 of the folding chair has a rectangular frame-shaped fixed frame 21 having a hollow central portion and a mounting portion 22 of the stationary frame 21 and the stationary part 22 of the backrest 20. [

In the folding chair according to the first embodiment of the present invention, the seat 10 is folded and fixed to the back 20 so as to be foldable. The backrest 20 has a square frame shape (22) having a size corresponding to that of the fixed frame (21) and formed of a mesh or fabric, and a fixing frame (21) formed on the outer periphery of the fixing frame The outer end of the mounting portion 22 is folded inward together with the fixing piece 23 and is fitted and fixed in the coupling groove 211 of the fixing frame 21. The thin plate-

In the present invention, the mounting portion (22) on which the back of the user of the backrest (20) is mounted is constituted by a mesh or fabric, so that ventilation is smooth even during long sitting. In addition, since there is no separate frame at the central portion of the stationary frame 21 other than the stationary frame 21 formed at the outer end of the stationary portion 22 which is in close contact with the back of the user, the user's back is stably mounted. In other words, unlike a conventional hard back, a flexible fabric is used to maintain a sufficient tension while being deformed in the same way as a curve of a user's back so that the back of the user can be stably stood.

Further, in order to fix the mounting portion 22 composed of a mesh or fabric, the fixing portion 21 is fixedly coupled to the fixing frame 21 formed in the shape of a rectangular frame having a hollow central portion. At this time, the fixing frame 21 and the mounting part 22 are not combined with each other by a fixing pin, a stapler, or the like, The fixing portion 22 can be fixedly coupled with ease, and the inconvenience of separately finishing when the fixing portion 22 is fixed by a fixing device such as a fixing pin or a stapler can be reduced.

A thin plate-shaped fixing piece 23 is attached to the periphery of the mounting portion 22 when the mounting portion 22 is engaged with the fixing frame 21 and the outer end of the mounting portion 22 is fixed to the fixing frame 22. [ Is folded inwardly together with the guide groove (23) to be fitted and fixed in the coupling groove (211) of the fixed frame (21), so that the mounting portion (22) maintains sufficient tension.

The fixing frame 21 of the backrest 20 is bent at the center of both side portions so as to be arcuate as a whole so that when the user is seated on the chair, the user's back is fixed to the mounting portion 22 of the backrest 20 When the seat is tilted backward to be in close contact with the seat, an arch shape similar to the curved line of the user is formed so that the seat can be more stably seated by the user.

FIG. 1 is a perspective view showing a folding chair of the present invention, FIG. 2 is an exploded perspective view of a backrest of a folding chair of the present invention, and FIG. 4 is an exploded perspective view of the elastic turning means of the present invention.

The second embodiment of the folding chair 1 of the present invention is characterized in that the backrest 20 is provided with a fixing member 41 fixed to the fixing leg 30 at a connecting position where the backrest 20 is fixed to the fixing leg 30, A rotary member 42 rotatably coupled to the backrest 20 and fixed to the backrest 20 and inserted into the interior of the fixed member 41 and the rotary member 42 so as to impart rotational elasticity to the backrest 20 And an elastic rotating means 40 constituted by a spring 43 is provided so that the back 20 can be folded back when the user is seated.

The elastic rotating means 40 of the present invention includes a fixing member 41, a rotating member 42 rotatably coupled to the fixing member 41 and fixed to the backrest 20, And a spring (43) inserted into the inside of the fixing member (41) and the rotary member (42).

The fixing member 41 includes a fixing body 411 having a cylindrical shape with one side opened and having a fixing portion 411a fixed to the fixing leg 30 at one side of the outer periphery thereof, A fixing jaw 413 protruding from one side of the inner periphery of the rotation groove 412 and a coupling hole 414 formed through the central portion in the longitudinal direction of the main body 411, .

The fixing body 411 is fixed to the fixing leg 30 so that a fixing part 411a is formed on one side of the fixing body 411 to facilitate the connection with the fixing legs 30.

The fixing portion 411a may be formed in various shapes such as a shape protruding to one side from the fixing body 411 and may be joined by various known methods such as fitting and bolt joining. As in the illustrated embodiment, It may be fitted in one side of the fixing leg 30 so as to protrude in a cylindrical shape from one side of the fixing legs 411.

The fixing body 411 is formed in a cylindrical shape whose inside is hollow and whose one side is opened, that is, a shape in which an upper surface or a lower surface of an empty cylinder is opened. The inner space of the fixing body 411 is referred to as a rotation groove 412 and is a space to which a rotary member 42 and a spring 43 to be described later are coupled.

A fixing protrusion 413 protruding from one side of the inner circumference of the rotary groove 412 is formed. The fixing jaw 413 serves to fix one end of the spring 43 and the fixing jaw 413 of the fixing member 41 to rotate by the length of the arc of the coupling jaw 423a of the rotary member 42, The range in which the rotary member 42 is rotated with respect to the member 41 is limited.

As described above, by limiting the elasticity of the spring 43 and the rotation angle of the double rotation so that the fixing jaw 413 of the fixing member 41 rotates only by the length of the arc of the engaging step 423a of the rotary member 42 The durability is increased even in long-term use, and it is rotated and fixed by a certain angle in a stable manner.

The main body 411 is fixed to the fixed leg 30 by a fixing shaft 44 using bolts or the like so that the engaging hole 414 is formed in the central portion in the longitudinal direction of the main body 411, The rotation member 42 coupled to the fixing member 41 can be easily rotated while the member 41 is fixed to the fixing leg 30.

The rotary member 42 includes a rotating body 421 formed integrally or detachably with the backrest 20 and a first rotary coupling 421 formed to protrude in a cylindrical shape and having a coupling hole 422a formed at the center thereof, And a ring portion 422 which is formed in a ring shape and protrudes in the same direction as the rotational engaging portion 422 while being spaced from the outer circumferential edge of the first rotational engaging portion 422 by a predetermined distance, A jaw 423a is formed so that the second rotary engaging portion 423 is formed so that the fixing jaw 413 of the fixing member 41 rotates at the engaging step 423a.

The rotating main body 421 is formed integrally or detachably with the backrest 20 so that the rotating member 42 is fixed to the backrest 20. The fixing member 41 is fixedly coupled to the fixing leg 30 and the rotating member 42 is fixedly coupled to the backrest 20 while the fixing member 41 and the rotating member 42 are fixed to the fixing member 41, And the rotary member 42 is coupled to the fixing member 41 with the fixing shaft 44 as the center by engaging the fixing shaft 44 so as to pass through the coupling hole 422a of the coupling hole 414 of the rotary member 42 So that the backrest 20 is rotatable.

The first rotation coupling part 422 is formed to protrude in a cylindrical shape from one side of the rotation body 421 and has a coupling hole 422a formed at the center thereof.

The second rotary coupling portion 423 is formed in a ring shape and protrudes in the same direction as the first rotary coupling portion 422 while being spaced from the outer peripheral edge of the first rotary coupling portion 422 by a predetermined distance. In addition, a rotation coupling step 423a is formed in the second rotation coupling part 423 such that the height of the portion of the call to the predetermined length is lower than the height of the remaining call.

In such a configuration, when the fixing member 41 and the rotary member 42 are engaged, the fixing jaw 413 of the fixing member 41 is rotated in the range of the engagement step 423a of the rotary member 42 will be.

Fig. 5 is an operational state view of the backrest by the elastic rotation means of the present invention, Fig. 6 is an operational state view of the elastic rotation means of the present invention, and Fig. 7 is a side view showing the rotation state of the backrest of the folding chair of the present invention.

The spring 43 is inserted into the fixing member 41 and the rotary member 42 when the fixing member 41 and the rotary member 42 are assembled as described above. Are fixed to the fixing step 413 of the fixing member 41 and the engaging step 423a of the rotating member 42 so that the backrest 20 is rotated and restored only by a certain angle due to the elasticity of the spring 43 Lt; / RTI >

When the user rotates the backrest 20 when the backrest 20 is seated on the backrest chair 1 of the present invention, the rotation member 42 rotates around the fixing member 41, 413 are rotated by the length of the arc of the engaging step 423a of the rotary member 42 and the maximum angle at which the backrest 20 is doubly rotated by the elasticity of the spring 43 is limited to provide durability and comfort It will be done.

The fixing member 41 is further provided with a rotation step 415 formed by protruding outward in the longitudinal direction of the pair of opposite ends so as to face the open end of the fixing body 411, The rotation grooves 424 may be formed by the length of the predetermined arc that is rotated when the rotation step 415 rotates at a position corresponding to the rotation step 415 of the fixing member 41 of the rotation main body 421.

When the user rotates the backrest 20 when the backrest 20 is seated on the backrest chair 1 of the present invention, the rotation member 42 rotates around the fixing member 41, 413 are rotated by the length of the arc of the engaging step 423a of the rotary member 42 and the maximum angle at which the backrest 20 is doubly rotated by the elasticity of the spring 43 is limited to provide durability and comfort 6A and 6B, the rotation jaw 415 of the fixing member 41 is rotated by the rotation of the rotation shaft 415, It is possible to rotate only the length of the arc of the rotary groove 424 of the member 42 so as to limit the maximum angle of rotation again so that the durability and the angle of rotation are stabilized.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art in light of the above teachings. will be. The invention is not limited by these variations and modifications, but is limited only by the claims appended hereto.

1: folding chair 10: seat
20: backrest 21: stationary frame
211: engaging groove 22: mounting portion
23: Fixing piece 30: Fixing piece
40: elastic rotation means 41: fixing member
411: Fixing body 411a:
412: rotation groove 413:
414: engaging hole 415: rotating jaw
42: rotating member 421: rotating body
422: first rotating coupling portion 422a: engaging hole
423: second rotating coupling part 423a:
424: rotation groove 43: spring
44: fixed shaft

Claims

A folding chair comprising a seat (10) folded and brought into close contact with a backrest (20) so as to be foldable,
The backrest (20)
A stationary frame 21 having an engaging groove 211 formed at an outer periphery thereof in the shape of a rectangular fixed frame with an empty central portion and a mounting portion 22 formed of a mesh or fabric having a size corresponding to the stationary frame 21, Like fastening piece 23 is padded around the fastening portion 22 so that the outer end of the fastening portion 22 is bent inward together with the fastening piece 23, (211) of the folding chair.

The method according to claim 1,
The stationary frame (21) of the backrest (20)
And a central portion of both side portions is bent so as to have an overall arcuate shape.

A folding chair comprising a seat (10) folded and brought into close contact with a backrest (20) so as to be foldable,
The backrest 20 has a fixing member 41 fixed to the fixing leg 30 at a connecting portion fixed to the fixing leg 30 and a fixing member 41 rotatably coupled to the fixing member 41 and fixed to the backrest 20 The elastic rotating means 40 constituted by the rotating member 42 which is fixed to the backrest 20 and the spring 43 which is inserted into the inside of the fixing member 41 and the rotating member 42 to give rotational elasticity to the backrest 20 So that the back 20 can be folded back when the user is seated,
The fixing member 41 includes a fixing body 411 having a cylindrical shape with one side opened and a fixing portion 411a to be fixed to the fixing leg 30 at one side of the outer periphery, A fixing jaw 413 protruding from one side of the inner periphery of the rotation groove 412 and a coupling hole 414 formed through the central portion in the longitudinal direction of the main body 411, Respectively,
The rotary member 42 includes a rotary body 421 formed integrally or detachably with the backrest 20, a first rotary coupling portion 422 formed in a cylindrical shape and having a coupling hole 422a formed at the center thereof, A first rotary coupling portion 422 which is formed in a ring shape and is spaced from the outer peripheral edge of the first rotary coupling portion 422 by a predetermined distance and protruding in the same direction as the first rotary coupling portion 422, The coupling jaw 423a is formed and the second rotary coupling part 423 is formed so that the fixing jaw 413 of the fixing member 41 is rotated by the coupling step 423a,
Both ends of the spring 43 inserted into the coupling of the fixing member 41 and the rotary member 42 are fixed to the fixing jaw 413 of the fixing member 41 and the coupling jaws 423a ),
The fixing jaw 413 of the fixing member 41 is rotated by the length of the arc of the engaging step 423a of the rotary member 42 so that the backrest 20 can be rotated and restored by the elasticity of the spring 43 Wherein the folding chair comprises a folding chair.

The method of claim 3,
The fixing member 41 is further formed with a rotation step 415 formed by protruding outward in the longitudinal direction of the pair of the fixing member 41 so as to face the opened end of the fixing body 411,
The rotary member 42 has a rotary groove 424 formed by a predetermined arc length that is rotated when the rotary jaw 415 rotates at a position corresponding to the rotary jaw 415 of the fixing member 41 of the rotary body 421 Respectively,
So that the rotation step (415) of the fixing member (41) rotates only by the length of the arc of the rotation groove (424) of the rotation member (42).