KR20130012913A - Chair with detacheable back cushion - Google Patents

Abstract

PURPOSE: A chair with a detachable backrest is provided to prevent the twist and separation of a seat back and a backrest. CONSTITUTION: A chair with a detachable backrest comprises a seat plate for supporting the buttocks of a user, a seat back(30) which is installed on one side of the seat plate and supports the back of the user, and a backrest member(40) which is detachably combined with the seat back. A coupling boss is protruded from one of either the seat back or backrest member. A magnet is installed on one side of one of either the seat back or backrest member.

Description

Chair with detachable backrest member {CHAIR WITH DETACHEABLE BACK CUSHION}

The present invention relates to a chair, and more particularly to a chair that can be attached and detached back member.

In general, the chair comprises a seat plate, a back plate coupled to one side of the seat plate, a leg coupled to the lower side of the seat plate, an armrest coupled to the seat plate or back plate to support the user's arm, and the back of the back plate. It may further include a headrest coupled to the upper side to support the user's head.

In this case, a cushion may be provided inside the back plate so that the user can rest comfortably on the back and the waist area. In recent years, various types of cushions are provided to prevent back pain or spinal deformation when sitting for a long time, and to sit in a correct posture. Is being provided.

However, in the case of a cushion provided integrally with the backboard inside the backboard, if the user's body changes over time, the old cushion will not fit the body and feel uncomfortable, especially children and adolescents with rapid growth Even more so. In addition, even when a long time use, the cushion feeling is inconvenient.

In addition, even when the back part of the back plate is contaminated due to careless use of the chair, there is a problem in that it does not have a separate washing method and continues to be used unsanitarily in a stained state.

In addition, when the back plate is torn or damaged by an external impact, the back plate is integrally formed with the seat plate, so there is a problem in that a new chair must be purchased by replacing the whole chair.

Accordingly, recently, chairs that can replace only back cushions have been proposed. These chairs use Velcro tape or elastic bands as disclosed in Korean Utility Model Publication No. 20-2011-0006470 (Patent Document 1). The back cushion is attached to the back plate.

However, especially in the case of the functional back cushion, when coupled to the back plate needs to be coupled to the correct position to surround and support the user's spine.

However, if the Velcro tape or elastic band is used in this way, it is difficult to attach the back cushion to the correct position of the back plate, and there is a problem that the coupling position is shifted by the user's movement during use.

In addition, there is a problem that the bonding force is lowered by the wear of the Velcro tape or elastic band when used for a long time.

Korean Utility Model Publication No. 20-2011-0006470 (2011.06.29)

The present invention is to solve the problems described above, an embodiment of the present invention, the backrest member can be replaced, the backrest member can be easily assembled at the correct position of the backplate, and even with repeated use the backrest member An object of the present invention is to provide a chair capable of attaching and detaching a backrest member that does not lower the binding force of the backplate.

According to a preferred embodiment of the present invention, the seat plate for supporting the buttocks of the user; A back plate provided on one side of the seat plate to support a back portion of the user; And a backrest member detachably coupled to the backplate, wherein any one of the backplate and the backrest member is formed with a protruding boss, and the other one of the backboard members is provided with a coupling member facing the coupling boss. A chair is provided which is detachable of a back member.

Here, a magnetic body is provided on one side of the back plate or the back support member, and a coupling member coupled to the magnetic body and a magnetic force may be provided on the other side.

At this time, the magnetic body may be provided at the end of the coupling boss.

In addition, a washer for reinforcing magnetic force may be interposed between the coupling boss and the magnetic body.

On the other hand, the washer is coupled to the end of the coupling boss, the coupling member may be provided with a magnetic material coupled to the washer by a magnetic force.

In addition, a through hole is formed in the coupling member to face the coupling boss, and the magnetic body may be coupled to an end of the coupling boss by a fastener fastened to the through hole.

In addition, a through hole is formed in the coupling member to face the coupling boss, and the coupling boss and the coupling member may be coupled to each other by a snap fastener inserted into the through hole.

Here, the snap fastener includes a cylindrical body having a hollow, a locking portion protruding outwardly along the upper edge of the body, and a plurality of incision grooves formed at predetermined intervals along the upper edge of the locking portion. .

At this time, the snap fastener is coupled to the coupling boss by a fastener, the engaging portion is elastically supported on the edge of the through hole.

In addition, the coupling member is preferably insert injection molding.

According to the chair that can be attached and detached according to the embodiment of the present invention, the back member can be easily replaced in the back plate.

In addition, since the coupling boss and the coupling member are provided to correspond to each other on the back plate and the backrest member, it can be easily assembled in the correct position.

In addition, since the coupling between the back plate and the back member is made solid, it is possible to prevent torsion or unexpected detachment during use.

1 is a perspective view of a detachable chair of the backrest member according to the embodiment of the present invention.
Figure 2 is an exploded perspective view showing the assembly of the back plate and the backrest member according to the first embodiment of the present invention.
Figure 3 is a cross-sectional view showing a coupling structure of the back plate and the back member according to the first embodiment of the present invention.
Figure 4 is a cross-sectional view showing a coupling structure of the back plate and the backrest member according to the second embodiment of the present invention.
Figure 5 is a cross-sectional view showing a coupling structure of the back plate and the backrest member according to the third embodiment of the present invention.
6 (a) is a plan view of the snap shown in FIG.
FIG. 6B is a perspective view of the snap shown in FIG. 5; FIG.

Hereinafter, with reference to the accompanying drawings will be described the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Throughout the specification, when a portion is "coupled" to another portion, this includes not only "directly coupled" but also "indirectly coupled" with another member in between. . In addition, when a part is said to "include" a certain component, this means that it may further include other components, without excluding the other components unless otherwise stated.

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

1 is a perspective view of a detachable chair of the backrest member according to the embodiment of the present invention.

As shown in FIG. 1, a chair (hereinafter, referred to as “chair”) 10 that can be detachably attached to a backrest member according to an embodiment of the present invention includes a seat plate 20 for supporting a user's buttocks, and a seat plate 20. It includes a back plate 30 which is provided on one side of the rear and supports the user's back portion, and the back support member 40 is detachably coupled to the back plate (30).

In addition, the chair 10 has a seat plate cushion 21 provided on the upper side of the seat plate 20, a moving roller provided at the lower end of the leg part 50 and the leg part 50 coupled to the lower part of the seat plate 20. It may further include (51).

1 and 2 below show an example in which the armrest part 60 and the back plate 30 are integrally formed to support the user's arm as an embodiment of the present invention, but unlike the armrest part 60 It is also possible that the back plate 30 is formed of a separate member, respectively, the present invention is known in advance that can be applied to a so-called 'seating chair' without a separate leg 50.

First Embodiment

2 is an exploded perspective view showing the assembly of the back plate and the backrest member according to the first embodiment of the present invention, Figure 3 is a cross-sectional view showing a coupling structure of the back plate and the backrest member according to the first embodiment of the present invention.

Here, the back plate 30 is to support the back portion when the user is seated on the chair, is provided on the rear side of the seat plate 20, if the user can support the back portion of the shape and the thickness and the like standards as necessary Various modifications can be applied.

And, the backrest member 40 is coupled to the front of the back plate 30 is to be in close contact with the user's back when the user leans on the back plate 30, it can be made of a material having a cushion or cotton cushion In addition, it may be manufactured in various forms using a synthetic resin material to surround and support the spinal region.

As shown in Figure 2 and 3, the back plate 30 is formed with a plurality of coupling bosses protruding forwardly spaced apart from each other, the bolt receiving groove 32 is provided inside the coupling boss 31. do.

At this time, the magnetic body 70 such as a permanent magnet may be fixed to the front of the coupling boss 31 by a fastener such as a bolt 71, the backrest member 40 is disposed to face the coupling boss 31 Coupling member 41 is provided.

The coupling member 41 may be coupled to the magnetic body 70 by magnetic force as a metal material, and at this time, a washer 72 between the coupling boss 31 and the magnetic body 70 to strengthen the fastening force and the magnetic force of the magnetic body 70. ) May be intervened.

Coupling member 41 is preferably provided on one side of the backrest member 40 by insert injection molding. In this case, the backrest member 40 may be made of a body made of synthetic resin, or may include a skin, a fabric, leather, resin, or the like surrounding the body, and is interposed inside the skin such as a sponge or cotton to give a user a sense of seating. It may further comprise a cushion. In addition, unlike the above-described example, it is also possible that the coupling member 41 is made of a magnetic material.

At this time, the coupling of the back plate 30 and the backrest member 40 is made as follows. In a state where the magnetic body 70 is fixed to the engaging boss 31 of the back plate 30 by fasteners such as bolts 71, the back support member 40 is positioned at the installation position of the back plate 30.

At this time, the magnetic body 70 fixed to the coupling boss 31 of the back plate 30 and the coupling member 41 of the back support member 40 are coupled to each other by magnetic force, whereby the back plate 30 and the back support member ( The assembly of 40) is completed.

Meanwhile, in the above description, the magnetic material 70 is provided on the back plate 30 and the coupling member 41 is provided on the back support member 40. However, as a modified embodiment of the present invention, the back plate ( The coupling member 41 is provided on the 30, and the magnetic body 70 may be provided on the backrest member 40.

Second Embodiment

4 is a cross-sectional view showing a coupling structure of the back plate and the backrest member according to the second embodiment of the present invention.

As shown in FIG. 4, in the coupling structure of the back plate 30 and the back support member 40 according to the second embodiment of the present invention, the back support member 40 is formed by the magnetic force of the magnetic body 70. It is similar to the first embodiment described above in that it is detachably coupled to the other, except that a through hole 42 is formed in the coupling member 41 to face the coupling boss 31.

According to the second embodiment of the present invention, the user is coupled to the magnetic body 70 through the through hole 42 in a state in which the magnetic body 70 is attached to the outer side of the coupling member 41 of the backrest member 40. The backrest member 40 can be coupled to the back plate 30 by fastening to the 31 with fasteners such as bolts 71 and the like.

In addition, as in the case of the first embodiment described above, in the state in which the magnetic body 70 is fixed to the coupling boss 31, it is also possible for the coupling member 41 of the backrest member 40 to be attached to the magnetic body 70. Do. In this case, since the position of the magnetic body 70 can be confirmed through the through hole 42, the backrest member 40 can be attached to the back plate 30 accurately and easily.

At this time, a washer 72 may be interposed between the coupling boss 31 and the magnetic body 70 to reinforce the fastening force and the magnetic force of the magnetic body 70.

In addition, as described in the first embodiment described above, the coupling member 41 may be made of a magnetic body, and the coupling member 41 is provided on the back plate 30, and the magnetic body 70 on the backrest member 40. Of course it can be provided.

In addition, as a modification of the first embodiment and the second embodiment, the washer 72 is fixed to the end of the coupling boss 31 by fasteners such as bolts, and the magnetic body 70 is attached to the coupling member 41. In this case, the coupling of the back plate 30 and the backrest member 40 may be achieved by attaching the magnetic body 70 to the washer 72 by magnetic force.

In this case, as described above in the first and second embodiments, the coupling member 41 may be made of a magnetic material.

In addition, the coupling boss 31 is formed on the back plate 30 and the coupling member 41 is provided on the backrest member 40, or the coupling member 41 is provided on the backplate 30 and the backrest member 40 is provided. It is of course also possible that the coupling boss 31 is formed.

Third Embodiment

5 is a cross-sectional view showing a coupling structure of the back plate and the backrest member according to the third embodiment of the present invention, FIG. 6 (a) is a plan view of the snap shown in FIG. 5, and FIG. 6 (b) is shown in FIG. Is a perspective view of a snap.

According to the third embodiment of the present invention shown in Figure 5, the backrest member 40 is detachably coupled to the back plate 30 by a snap fastener (80).

At this time, the front of the back plate 30 is provided with a plurality of coupling bosses 31 protruding forward, the interior of the coupling boss 31 is formed with a bolt receiving groove 32, the cylindrical snap fastener 80 Is fixed to the front of the coupling boss 31 with a bolt (71).

In addition, one side of the backrest member 40 may be provided with a coupling member 41 having a through hole 42 corresponding to the coupling boss 31, the coupling member 41 is the backrest member by insert injection molding It is preferable that it is formed in one side of 40.

The coupling between the back plate 30 and the backrest member 40 is made by fitting the snap fastener 80 fixed to the coupling boss 31 of the back plate 30 to the through hole 42 of the coupling member 41.

Here, the snap fastener 80, as shown in Figure 6 (a) and 6 (b), the cylindrical body 81 having a hollow as a whole, protruding outward along the edge of the upper end of the body 81 It includes a locking portion 82, a plurality of cutting grooves 821 are formed in the locking portion 82 at predetermined intervals, the elastic deformation of the locking portion 82 is possible.

In addition, a bolt support part 812 is formed on the bottom surface of the body 81 to support the head of the bolt 71 along the edge of the hollow 811. At this time, the bolt support 812 may be formed in a flat or inclined surface according to the shape of the lower end of the head portion of the bolt (71).

Assembly of the backrest member according to the third embodiment of the present invention is performed as follows.

First, the fastener 80 is fastened to the coupling boss 31 using fasteners such as bolts 71, and at this time, the head of the bolt 71 is supported by the bolt support part 812 of the snap fastener 80.

Next, after the back member 40 is positioned so that the coupling member 41 faces the snap fastener 80, the back member 40 is urged toward the back plate 30 to catch the fastening portion 82 of the snap fastener 80. ) Is supported at the edge of the through hole 42 of the coupling member 41.

At this time, as the outer circumferential surface of the locking portion 82 is made of a gently convex surface, the locking portion 82 is inserted into the through hole 42 while elastically deformed, and the locking portion 82 passes through the through hole 42. The lower surface locking portion 82 is elastically supported at the edge of the through hole 42 to prevent the backrest member 40 from flowing.

On the other hand, as in the case of the first and second embodiments described above, the coupling member 41 is provided on the back plate 30, the coupling boss 31 and the snap fastener 80 is provided on the backrest member 40 Of course it can be.

The foregoing description of the present invention is intended for illustration, and it will be understood by those skilled in the art that the present invention may be easily modified in other specific forms without changing the technical spirit or essential features of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included within the scope of the present invention.

10: chair 20: seat
21: Seat cushion 30: Back
31: coupling boss 40: backrest member
41: coupling member 70: magnetic material
72: washer 80: snap fastener
81: body 82: locking part

Claims (10)

A seat plate 20 supporting the hip of the user;
A back plate 30 provided on one side of the seat plate 20 to support a back portion of the user; And
It includes a back support member 40 detachably coupled to the back plate 30,
Any one of the back plate 30 and the backrest member 40 is formed with a coupling boss 31 protruding, and the other is provided with a coupling member 41 facing the coupling boss 31. A chair that can be attached and detached from the backrest member.
The method according to claim 1,
A magnetic body 70 is provided on one side of the back plate 30 or the backrest member 40, and a coupling member 41 coupled to the magnetic body 70 by a magnetic force is provided on one side of the back plate 30 or the back support member 40. Removable chair, characterized in that the backrest member.
The method according to claim 2,
Removable chair of the backrest member, characterized in that the magnetic body 70 is provided at the end of the coupling boss (31).
The method according to claim 3,
A chair capable of attaching and detaching a backrest member, characterized in that a washer (72) is interposed between the coupling boss (31) and the magnetic material (70).
The method according to claim 1,
A washer 72 is coupled to an end of the coupling boss 31, and the coupling member 41 has a magnetic body 70 coupled to the washer 72 by a magnetic force. 2 chairs available.
The method according to claim 3,
A through hole 42 is formed in the coupling member 41 to face the coupling boss 31, and the magnetic body 70 is coupled to the coupling boss 31 by a fastener fastened to the through hole 42. Chair detachable from the back, characterized in that coupled to the end of the chair.
The method according to claim 1,
A through hole 42 is formed in the coupling member 41 to face the coupling boss 31. The coupling boss 31 and the coupling boss 31 are formed by a snap fastener 80 inserted into the through hole 42. Removable chair of the backrest member, characterized in that the coupling member 41 is coupled.
The method of claim 7, wherein the snap fastener 80,
Cylindrical body 81 having a hollow, and the engaging portion 82 protruding outwardly formed along the upper edge of the body 81, and a plurality of incisions formed at predetermined intervals along the upper edge of the engaging portion 82 Removable chair of the backrest member, characterized in that it comprises a cutting groove 821 of.
The method of claim 8, wherein the snap fastener 80,
The chair is coupled to the coupling boss 31 by a fastener, and the engaging portion 82 is detachable to the chair, characterized in that the support member is elastically supported on the edge of the through hole 42.
The method according to claim 1,
The coupling member 41 is removable chair of the backrest member, characterized in that the insert injection molding.

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