KR20090103468A - Conjoin frame for chair - Google Patents

Abstract

PURPOSE: A bind connection structure of a body receiver for a chair is provided, which increases coherence by connecting body receivers using a separate bind connector. CONSTITUTION: A bind connection structure of a body receiver for a chair is constituted as follows. A bind connector(100) is selectively fixed between each bracket and body receiver of a chair. The bind connector is made of soft material. In a flange, a nut of the metal material is insert-molded on both sides of the back plane. The rotation axis is axis-connected to the hinge pipe(24) of the body receiver, is made of the hard synthetic resin material, and is formed in both sides of the front surface. The curved surface is flexibly formed in a curve on the central part.

Description

Joint connection structure of chairs for chairs {Conjoin frame for chair}

The present invention relates to a coupling connection structure of the body support for chairs, and more particularly, the body supports supporting the cervical spine and head as well as the back and lumbar spine when a person sits on a chair and leans on the chair frame. It is designed to connect effectively and functionally, while providing a comfortable and comfortable movement by ergonomically smooth movement along with human movement, providing comfort and comfort, and also maintaining a stable posture. It relates to a coupling connection structure.

In general, various chairs are formed in a frame constituting the main body, a seat plate supporting the buttocks of the seat, a backrest supporting the back, and an armrest supporting the arm.

Among the chairs that are used the most, the seat plate part and the back part are integrally formed or the back part is configured to be adjusted by a certain angle according to the convenience of use while separating them.

However, in the case of the general chair described above, the user's back is not completely in contact with each other, and only the center of the back is touched, that is, the back and right parts of the back cannot be stably supported. Is easily fatigued and has the disadvantage of not being able to maintain a correct posture.

In order to solve this problem, by configuring the backrest part in a dual pack type, the pair of backrests comfortably wrap both sides of the back when seated on the chair to maintain a stable posture.

Looking at the conventional dual pack type backrest structure as an example, it has a chair back including two backrest shell 70 as shown in FIG.

The two backrest shells 70 are axially separated from each other, and the front surface thereof is not only concave when viewed in the axial direction perpendicular to the seat surface, but also convexly formed as a contact surface of the saddle when viewed horizontally from the seat surface. In addition, the back of the back plate 70 is made of a vertically installed elastic element 71 is connected to the support shaft 73 by the middle rail 72 and at the same time firmly connected as an elastic means (74).

However, the conventional chair back structure provides the functionality of supporting the seat of the seater on both sides, but if the seater is used for a long time or if the back is strongly adhered to the back, there is a problem that a strong pressure is placed on the back and waist of the body. Of course, there was a problem that causes the bending of the spine.

In addition, Korean Utility Model Registration Application No. 20-2003-8503 also proposes a configuration in which a protective cover for protecting the backrest is installed by dividing the backrest of the chair into two and connecting an elastic body to the backrest.

As shown in Figure 2 of the accompanying drawings, the elastic fastener consisting of a support body coupled to the back of the single or separate chair back by a hinge retaining elasticity on both sides of the center body by means of fastening means such as bolts. It is mounted to the back of the back and includes a chair back (80) that is movably coupled to the back support.

The backrest 80 is formed with a bolt insertion hole 85 having a bolt insertion hole 84 in the center to be coupled to the body 83 of the elastic fastener 81 coupled through the support 82 on the back, The backrest fastener protection, characterized in that consisting of a space forming portion (86) consisting of a curved surface protruding backward so as to secure the flow space on both sides of the support (82) of the elastic fastener (81) to both sides of the bolt insertion hole (85) Has a cap 87.

However, the conventional backrest fastener protection cap 87 is mounted between the backrest and the backrest support and the elastic fastener 81 coupled to the backrest flow by rotation of the hinge body and the entire fastener at the rear of the fastener. Since the fastener protection cap 87 is mounted to be wrapped, the backrest is fixed to the backrest support and there is no flow, thus simply using the elasticity of the elastic fastener 81, the limit of elasticity is also the fastener protection cap. There was a problem that the space was created only up to the edge 88 in the 87 and the rotation was limited.

The present invention has been invented to solve this problem in view of the above problems, the object of which is the frame of the chair to support the cervical spine and head as well as the back and lumbar spine when a person sits or sits on a chair By constructing an effective and functional connection to the upper body, the chair's body restraint provides comfort and comfort by ergonomically smoothly moving together with the human's moving movements while also improving their connection power. It is to provide a type of coupling connection structure.

The present invention for achieving the above object, the backrest for supporting the back of various chairs, lumbar support for supporting the lumbar spine, cervical spine and headrest for supporting the head, such as a neckrest for supporting the head effectively (hereinafter " Body restraints ”) to achieve a structure that allows the body to be connected to the body of the chair.

In the present invention, the lumbar support bracket, the back support bracket, and the neck support bracket are fixed to the upper frames of various chairs, respectively, and the brackets are fixed to the body support devices such as the lumbar support plate, the back support plate, and the neck support plate, respectively. Applies to

Optionally securely install a separate coupling connector according to the present invention between each bracket and the body support, the coupling connector is formed of a flexible material, such as rubber, silicone, flexible synthetic resin, while the metal nut on both sides of the back It is characterized by consisting of a flange formed of an insert, a rotating shaft which is formed on both sides of the front surface and is made of a hard synthetic resin material, and is axially coupled to the hinge tube of the body support, and has a curved surface flexibly at the center.

The present invention increases the cohesion by effectively and functionally connecting body restraints that effectively support the back of the user, that is, the back, lumbar spine, neck and head when a person sits on a chair and uses a separate coupling connector. Will have the effect.

In addition, when the person moves in a chair, the coupling connector moves smoothly and smoothly with the movement of the person, thereby supporting the back and lumbar spine of the person as well as the neck and the head ergonomically, adding comfort and comfort. In addition, the fatigue is significantly reduced while having a stable posture.

1 is a schematic diagram of an extract of the backrest provided with a conventional lumbar spine,

Figure 2 is an exploded perspective view of the backrest provided with a conventional lumbar support,

3 is an exploded perspective view of a chair to which the present invention is applied;

4 is a partially enlarged view of FIG. 3 of the present invention;

Figure 5 is a plan view showing a part of the present invention the main part

Figure 6 is a side cross-sectional view showing a part of the present invention.

Figure 7 is a cross-sectional view of the coupling connector of the present invention

<Description of Signs of Major Parts of Drawings>

A: Chair 10: Frame

20: Lumbar support plate 21: Lumbar support bracket

22: Cover 23: cushion material

24: hinge tube 30: back plate

31: Back bracket 40: Neck plate

41: lumbar support bracket 100: coupling connector

110: flange 111: nut

120: rotation axis 130: curved surface

140: jamming

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The detailed description for carrying out the present invention for achieving the above effects will be described in detail with reference to the accompanying drawings.

3 and 4 of the accompanying drawings is an exploded perspective view of a chair showing the overall configuration according to the present invention, Figures 5 and 6 are schematic and side views of the main portion of the present invention, Figure 7 is a view of the present invention As a cross-sectional view, reference numeral A in the drawing indicates the main body of the chair to which the present invention is applied.

The chair (A) is provided with a support leg 12 having a wheel on the bottom of the seat plate portion 11 as usual, and at the same time armrests 13 are installed on both sides, and the backrest according to the present invention, And a chair on which body supports such as lumbar support and neck support are installed.

The chair (A) is configured with a frame 10 connected to the back of the support leg 12, the frame 10 is provided with a lumbar support plate 20 to support the user's lumbar spine to its center At the same time, a pair of backrest plate 30 supporting the back to be divided into both sides is installed, the neck plate 40 for supporting the cervical spine and head is installed on the upper side.

The lumbar support plate 20, back plate 30, neck plate 40 is referred to collectively as body support as described above, these are separate brackets and couplings according to the present invention, respectively, connected to the frame 10 It is fixedly installed by the connector.

The upper front of the frame 10 is fixed to the lumbar support bracket 21 for fixing the lumbar support plate 20 by the bolt, the lumbar support bracket 21 of the lumbar support bracket 21 in a separate coupling connector according to the present invention The lumbar support plate 20 is installed.

At this time, the lumbar support plate 20 is composed of a cover 22 to maintain the skeleton while being injection molded with synthetic resin, and a cushioning material 23 is installed on the front surface to provide a cushioning force, the cover 22 and the cushioning material Hinge tube 24 is formed in the shape of each of the half on the rear of the 23 to form an intact hinge tube 24 by the combination of these to provide a function that the axis of rotation of the coupling connector to be described later.

In addition, the back plate 30 is divided into two and is installed by the back bracket 31 at the top of the frame 10, the back bracket 31 is horizontally installed as a bowl at the upper end of the frame 10 and At the same time, on both sides thereof, the back plate 30 is fixed by a bowl, respectively, by separate coupling connectors according to the present invention.

In addition, the neck plate 40 is to be installed by the neck bracket (41) which is installed to be able to slide vertically from the top of the backrest bracket 21 described above, that is, separate from the front of the neck bracket (41) It is installed by the coupling connector of.

At this time, the backrest plate 30 and the neckboard plate 40 is similar in configuration to the lumbar support plate 20 described above, except that only the appearance is different from the structural characteristics of the chair, that is, they also consist of a cover and a cushion material At the same time they are coupled to the rear is also configured to form a hinge tube for coupling with the coupling connector.

Therefore, the cover, the cushioning material and the hinge tube will be denoted by the same reference numerals.

The coupling connector according to the present invention is denoted by the reference numeral 100 in the drawing, which is fixed with a bolt to each of the body brackets (21) (31) (41) installed on the frame (10) of the chair (A) It is installed, the front of the body support is installed respectively.

The coupling connector 100 is formed of any one material, such as soft rubber, silicon, soft synthetic resin, as shown in detail in the accompanying drawings, while the flange 110 having a nut 111 on the back is integrally formed and When the rotary shaft 120 made of hard synthetic resin is integrally formed on both sides of the front surface, the central shaft is configured to have a flexible curved surface 130 to provide elasticity.

The flange 110 provides a connecting portion fastened with a bolt to each bracket installed on the frame 10 of the chair A, while nuts 111 are formed on both sides thereof, and the nut 111 is made of metal. While being formed as is molded into an insert in the interior of the flange (110).

In addition, the rotation shaft 120 is formed of a hard synthetic resin material and is formed to protrude to both sides of the front, respectively, and is coupled to each body restraint, the body restraint is configured to be rotated within a certain range around it do.

In addition, the front end of the coupling connector 100 has a stopper 140 is formed to protrude slightly along the longitudinal direction to function as a stopper to limit the range of rotation of the body support when combined with the body support that is coupled to the front thereof. Will be provided.

At this time, the coupling connector 100 is formed of a material such as rubber is to provide a constant elastic force by the characteristics of the material itself, while the rotation shaft 120 is made of a hard synthetic resin body This is to improve the binding force when the shaft is combined with the bearings.

Therefore, the coupling connector 100 of the present invention configured as described above is to be selectively installed and used in the part is installed, such as backrest, lumbar support, neckrest.

The coupling connector 100 according to the present invention is fixed by the bolt through the nut 111 on both sides in the state in which the flange 110 of the rear side is in contact with each bracket, as shown in the drawing, the rotating shaft 120 of the front It is configured to be axially coupled with the hinge tube 24 formed on the rear of the body support.

That is, the cover shaft 22 is inserted into the hinge tube 24 formed on the rear surface of the cover 22 of the body support and the hinge tube 24 formed on the rear surface of the cushioning material 23. And the cushioning material 23 is combined is made axial coupling.

Therefore, the coupling connector 100 is connected to each bracket horizontally while the body support to support the lumbar spine, back, neck, etc. are axially coupled to the support point when the user's weight is applied By its elasticity, it cushions it and supports it stably, and also provides a function to stably support the body by immediately moving even in fine movements.

In this case, the engaging projection 140 is formed on the front surface of the coupling connector 100 to prevent excessive rotation by being combined with another projection formed on the cover 22 of the body support.

On the other hand, the present invention configured and operated as described above can be selectively applied to various chairs, that is, by selectively applying to the lumbar support for supporting the lumbar spine and the back for supporting the back, and the neck for supporting the neck and head respectively It can be used.

First, it can be used to apply to the lumbar support plate 20 as an embodiment of the present invention, in this case the front of the lumbar support bracket 21 is installed in the upper portion of the frame 10 as shown in the accompanying drawings The flange 110 of the coupling connector 100 is folded and fixed to the bowl, and then to the cover 22 and the cushion member 23 of the lumbar support plate 20 on the front rotation shaft 120 of the coupling connector 100. By assembling the formed hinge tube 24 is to complete the assembly.

In addition, as another embodiment of the present invention, if you want to apply to the neck plate 40, the coupling connector in the state in which the coupling connector 100 is connected to the upper front of the neck bracket 21 in the same manner as described above. Can be used to assemble the neck plate 40 to (100).

And, in another embodiment of the present invention, if you want to apply not only to the lumbar support plate 20 and the neck support plate 40 but also the back support plate 30 of the backrest bracket 31 fixed to the frame 10 The coupling connector 100 is assembled on both sides by a bowl, and the back connector plate 30 can be assembled to the coupling connector 100 in the same manner as described above.

Meanwhile, the present invention can be installed and used on the lumbar support plate 20, the back support plate 30, and the neck support plate 40, as well as selectively used only a part of them or may be installed and used as a whole. It is.

Therefore, the present invention when the user sits on a chair and leans on the back, the lumbar support plate 20 is closely attached to the lumbar spine of the user to provide a function of safely supporting the back plate 30 is divided into two in both sides As well as supporting each, the neck plate 40 serves to support the neck and head safely.

In this case, when the user sitting on the chair moves, the coupling connector 100 which fixes the body rests smoothly and stably moves according to the movement of the user, thereby continuously supporting the user's lumbar spine, back, neck and head in a stable state. Will be given.

That is, the coupling connector 100 is made of a material having excellent elasticity, such as rubber, silicone, flexible synthetic resin and at the same time as the body is rotated by the shaft coupling with the rotating shaft 120, the user's weight is immediately applied to the chair and cushioning Absorption will safely support the user's body.

Claims (2)

The lumbar support bracket 21, the back support bracket 31, and the neck support bracket 41 are fixedly installed on the upper frame 10 of the chair A, respectively, and these brackets have the lumbar support plate 20 and the back support plate ( 30), in the chair is fixed to the body support of the neck plate 40, respectively, Selectively fixing the coupling connector 100 between each bracket of the chair (A) and the body support, the coupling connector 100 is formed of a flexible material and the metal nut 111 on both sides at the rear side Is formed by the flange 110 and the insert is formed on both sides of the front, respectively, made of a hard synthetic resin material, the rotating shaft 120 is axially coupled to the hinge tube 24 of the body support, and made of a flexible curve in the center Coupling connection structure of the body supporters for chairs, characterized in that the curved surface 130 is provided with. The method of claim 1, Coupling connection structure of the body supporters for chairs, characterized in that the front of the coupling connector 100 to form a locking projection 140 protruding forward to be coupled with the rear locking projections of the body support to limit the rotation .