KR200455410Y1 - chair - Google Patents

Abstract

A chair having a lumbar support is disclosed. This chair has a seat; A lower support part disposed below the magnet part; A backrest disposed above the seat; A lumbar support arranged at the bottom of the backrest; And a support frame supporting the backrest and the lumbar support, wherein the lumbar support is hooked to the support frame.

Chair, lumbar support, hook

Description

Chair {CHAIR}

The present invention relates to a chair, and more particularly to a chair having a lumbar support.

 Recently, with the emergence of ergonomic chairs, many chairs with lumbar support under the backrest have been developed. The lumbar spine of the user sitting on the chair by the lumbar support is extended to help health care.

Conventional chairs with lumbar support generally have a structure for fixing lumbar support located in the front by inserting bolts from the rear of the chair through bolt holes formed in the back of the support frame supporting the backrest.

However, according to the bolt fixing structure, the position of the lumbar support is fixed with respect to the support frame so that the direction of the force applied to the lumbar spine of the user from the lumbar support is fixed, thus making it difficult to comfortably support the lumbar spine that responds to the force. there is a problem.

In addition, since the lumbar support is coupled by inserting the bolt from the rear of the support frame, the bolt becomes long, and thus there is a problem that the assembling work is difficult and accurate.

In addition, when the lumbar support is removed, there is a high possibility that a component such as a bolt used to join the lumbar support is lost.

The present invention is to solve the problem of the conventional chair as described above, it is an object of the present invention to provide a chair having a lumbar support that can change the direction of the force applied to the user's lumbar spine.

It is also an object of the present invention to provide a chair that can be quickly, accurately and easily assembled without using long parts such as bolts.

It is also an object of the present invention to provide a chair which is free from the risk of losing the components used to join the lumbar support in the case of separating the lumbar support.

According to an aspect of the present invention, the seat; A lower support part disposed below the magnet part; A backrest disposed above the seat; A lumbar support arranged on the lower part of the backrest; And a support frame for supporting the backrest and lumbar support, wherein the lumbar support is hooked to the support frame.

The support frame includes a back support plate for supporting the backrest, and a lower bracket integrally formed with the backrest to support the lumbar support, and a hook coupling portion is formed at the front of the lower bracket, and the lumbar support of the lumbar support The rear hook portion may be formed to be coupled to the hook coupling portion of the lower bracket.

At the edge of the hook coupling portion, a guide portion may be formed to guide coupling of the hook portion to the hook coupling portion.

The upper end of the lower bracket can be opened.

The lumbar support is rollable relative to the support frame, preferably elastically rollable.

Chair according to the present invention can be appropriately relieve the force applied to the lumbar spine from the lumbar support by coupling the lumbar support to the lower bracket formed in the support frame in a rollable manner. In addition, it is possible to quickly and accurately assemble the lumbar support, and to prevent the loss of the components used to join the lumbar support even when the lumbar support is removed. In addition, it is possible to reduce the material cost by integrally forming the hook portion in the lumbar support.

The present invention may be variously modified and have various embodiments, and specific embodiments will be illustrated in the drawings and described in detail. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all transformations, equivalents, and substitutes included in the spirit and scope of the present invention. In describing the present invention, when it is determined that the detailed description of the related known technology may obscure the gist of the present invention, the detailed description thereof will be omitted.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In addition, the terms "comprise" or "have" means that there is a possibility to further include other configurations or actions in addition to the configurations and actions described in the specification.

Hereinafter, an embodiment of a chair according to the present invention will be described in detail with reference to the accompanying drawings. In the description with reference to the drawings, the same or corresponding components are given the same reference numerals, and redundant description thereof will be omitted as necessary.

1 is a perspective view showing a chair 1 according to an embodiment of the present invention, Figure 2 is a partially exploded perspective view showing the main portion of the chair 1 according to the present embodiment.

As shown in FIG. 1, the chair 1 according to an embodiment of the present invention includes a seating part 100; A lower support part 200; A backrest 300; Lumbar support 400 is included. Chair 1 according to the present embodiment and the armrest 500; The head support 600 may further include.

The seat 100 may take various forms known in the art.

The lower support part 200 is disposed below the seat part 100. As shown in FIG. 1, the lower support 200 may take the form of a leg, or may take other forms known in the art. Or it may take the form of a cushion that is simply supported on the floor without legs.

The backrest 300 may take the form of a dual back as shown in FIG. 1, or may take the form of a single back. In the case of a single bag form, a coupling hole (not shown) is formed at the lower portion so that the lumbar support 500 can be coupled from the front of the chair 1.

The lumbar support 500 is disposed under the back support 300 to support the lumbar spine of the user. The configuration for coupling the lumbar support 500 will be described later in more detail.

The neck rest 600 is arranged to be height-adjustable in the upper center of the back rest 300.

The back support 300, the lumbar support 400 and the neck support 600 are all supported by the support frame 700 as shown in FIG. To this end, the support frame 700 is a back support plate 720 for supporting the backrest 300, the lower bracket 740 is disposed on the lower support plate 720 to support the lumbar support 400, and back It may include an upper bracket 760 disposed in the upper central region of the fingerboard 720 to support the neck rest 600. According to this embodiment, the back support plate 720, the upper bracket 760 and the lower bracket 740 may all be configured to include a plastic material, it may be formed integrally. When formed integrally, both the upper bracket 760 and the lower bracket 740 may take the form of protruding forward from the back support plate 720.

The upper bracket 760 may take the form of an open front as shown in FIG. 2, but may also take the form of a closed box in the front. In the upper bracket 760, a neck support frame 620 extending downward from the neck rest 600 is slidably inserted. An elongated slot 622 is formed in the center region of the neck support frame 620. The slot 622 is fitted with a fixing pin 640 is inserted from the back of the back support plate 720, the neck support frame 620 can be fixed to the upper bracket 760 by tightening the fixing pin 640. have. Fixing pin 640 is preferably configured in a screw type. When the front of the upper bracket 760 is opened as in this embodiment, the distal end of the fixing pin 640 can be seen from the front of the chair (1).

3 is a cross-sectional view taken along line III-III of FIG. 2, in which the neck support frame 620 is slidably inserted into the upper bracket 760 by a fixing pin 640 operated behind the back support plate 720. Shows. According to the rotation of the fixing pin 640, the neck support frame 620 is pressed or released against the inner wall 762 of the upper bracket 760 to be fixed in position in the upper bracket 760, or It may slide in the vertical direction. Reference numeral 642 denotes a nut coupled to the distal end of the fixing pin 640.

The lower bracket 740 is in the form of a box with the front closed as a whole as shown in FIG. The cross section of the lower bracket 740 is preferably a quadrangle as shown in FIG. 2, but is not necessarily limited thereto, and may have various cross-sectional shapes such as polygons or circles as long as the lumbar support 400 is not affected. .

The seat support frame 120 extending from the seat 100 is slidably inserted into the lower bracket 740. The slot 122 having an elongated shape is formed in the center region of the seat support frame 120. The slot 122 is fitted with a fixing pin 140 inserted from the rear of the back support plate 720, and the seat support frame 120 can be fixed to the lower bracket 740 by tightening the fixing pin 140. have. Fixing pin 140 is preferably composed of a screw type. In the present embodiment, the lower bracket 740 is not opened in the front unlike the upper bracket 760, and furthermore, because the lumbar support 400 is disposed in front of the lower bracket 740, the distal end of the fixing pin 140 It is not visible from the front of the chair 1.

4 and 5 are cross-sectional views taken along lines IV-IV and VV of FIG. 2, respectively, and the lower bracket 740 is provided by the fixing pin 140 in which the seat support frame 120 is operated behind the back support plate 720. It shows the state inserted slidably in the inside. The seat support frame 120 is pressed or released against the inner wall 742 of the lower bracket 740 according to the rotation operation of the fixing pin 140 to fix the position in the lower bracket 740 or to adjust the position of the chair 1. It may slide in the vertical direction. Reference numeral 142 denotes a nut disposed inside the seat support frame 120 to hold the distal end of the fixing pin 140.

In the present embodiment, the seat support frame 120 is described as being slidable inside the lower bracket 740 for convenience of description, but the lower bracket 740 is actually lifted relative to the seat support frame 120. Accordingly, the height of the seat 100 of the backrest 300 may be adjusted.

2, the hook coupling portion 744 is formed in the front center region of the lower bracket 740. The guide portions 746 are formed at upper and lower edges of the hook coupling portion 744, respectively. As illustrated in FIG. 5, the guide part 746 is formed to be inclined to guide the hook part 420 of the lumbar support 400 so as to be gently inserted into the hook coupling part 744.

2 illustrates an example in which the guide part 746 is formed at upper and lower edges of the hook coupling part 744, but is not limited thereto. For example, the guide portion 746 may be formed at the left and right edges of the hook coupling portion 744, or may be formed at both the upper and lower left and right edges, depending on the design needs. In addition, the shape of the hook coupling portion 744 is not limited to a quadrangle and may take a polygon, a circle, or an oval as necessary, and thus, the shape and position of the guide portion may be appropriately changed.

According to this embodiment, the hook portion 420 may be configured to include a plastic material, and also suitable elasticity so that the lumbar support 400 can be rolled with respect to the lower bracket 740 in the direction of the arrow shown in FIG. May have This rolling action takes into account that the direction of the force applied to the lumbar spine from the lumbar support 400 varies depending on the posture of the user sitting on the chair 1. That is, since the lumbar support 400 is properly deformed along the direction of the pressing force of the lumbar support 400, the impact applied to the lumbar spine can be alleviated. Although the lumbar support 400 is shown rolling in the up and down direction of the chair 1 in FIG. 5, this is exemplary, so that it may be rolled in the left and right directions or up and down and left and right directions of the chair 1 as required by design. It may be configured or may be configured to roll in any direction.

According to this embodiment, the lumbar support 400 is a rolling action by the elasticity of the hook portion 420, but the hook portion 744 of the hook portion 420 and the lower bracket 740 of the lumbar support 400 It can also be configured to have a rolling action by the structural coupling relationship of.

In order to prevent the lumbar support 400 from being damaged by the rolling of the hook portion 420, the lumbar support 400 includes a hook support 440 having sufficient strength in an area where the hook portion 420 protrudes. do.

As shown in Figure 4 and 5, according to this embodiment, for sliding or fixing the distal end of the hook portion 420 of the lumbar support 400 and the seat support frame 120 with respect to the back support plate 720 The distal end of the fixing pin 140 is disposed to face each other in the lower bracket 740. Accordingly, the fixing pin 140 and the hook portion 420 may be provided at the same height without interfering with each other. Of course, the distal end of the hook portion 420 and the distal end of the fixing pin 140 may be provided to face each other, or may be provided to be spaced apart in the vertical direction. According to this configuration, it is possible to operate so that the backrest 300 can be lifted up and down with respect to the seating portion 100 without being affected by the lumbar support 400.

2 and 5, the upper end of the lower bracket 740 is open. Through the open upper end, a human hand or a tool may be inserted into the lower bracket 740 to separate the hook 420 from the hook coupling part 744.

As described above, the chair according to the present invention is coupled to the lower bracket formed in the support frame to be rollable in a hooked manner, thereby appropriately relieving the force applied to the lumbar spine from the lumbar support. In addition, it is possible to assemble the lumbar support in the lower part of the backrest quickly, accurately and easily, and to prevent the loss of the components used to join the lumbar support even when the lumbar support is removed. In addition, it is possible to reduce the material cost by integrally forming the hook portion in the lumbar support.

Although described above with reference to a preferred embodiment of the present invention, those of ordinary skill in the art variously devised the present invention without departing from the spirit and scope of the present invention described in the claims below It will be appreciated that modifications and variations can be made.

1 is a perspective view showing a chair according to an embodiment of the present invention.

Figure 2 is a partially exploded perspective view showing the main portion of the chair according to an embodiment of the present invention.

3 is a cross-sectional view taken along the line III-III of FIG. 2;

4 is a cross-sectional view taken along the line IV-IV of FIG. 2.

5 is a cross-sectional view taken along the line V-V of FIG.

<List of Reference Numbers in Drawings>

100: seat 120: seat support frame

122: slot 200: lower support

300: backrest 400: lumbar support

420: hook portion 440: hook support

500: armrest 600: neckrest

620: wooden frame 622: slot

640: fixed pin 700: support frame

720: back support plate 740: lower bracket

742: inner wall 744: hook coupling portion

746: guide portion 760: upper bracket

762: inner wall

Claims (6)

A seat unit; A lower support part disposed below the seat part; A backrest disposed above the seat; A lumbar support arranged on the lower part of the backrest; It includes a support frame for supporting the backrest and lumbar support, The lumbar support is hooked to the support frame, The support frame includes a back support plate for supporting the backrest, and a lower bracket formed integrally with the backrest to support the lumbar support, A hook coupling portion is formed at the front of the lower bracket, The rear of the lumbar support chair is characterized in that the hook portion is coupled to the hook engaging portion of the lower bracket is formed. delete The method of claim 1, The hook engaging portion is a chair, characterized in that the guide portion for guiding the coupling of the hook portion to the hook coupling portion is formed. The method of claim 1, The upper end of the lower bracket is characterized in that the chair is open. The method according to any one of claims 1, 3 and 4, The lumbar support chair is characterized in that the rollable relative to the support frame. The method of claim 5, The lumbar support chair is characterized in that the elastically rollable with respect to the support frame.

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