KR101484669B1 - Apparatus for adjusting support position of lumbar - Google Patents

Abstract

According to the present invention, a device for controlling a lumbar support is a device for variably controlling a lumbar support part of a person, who is sitting, by being combined with a back frame of a mesh type chair having a back sheet formed of an elastic fabric material. The device includes a lumbar pad formed into a plate shape, having a sliding combination part combined with both sides, and supporting the lumbar vertebra of a person, who is sitting; a support cover including a body frame including a combination part combined with right and left frames of the back frame and a sliding slot included in both sides of the body frame and guiding the up and down movement of the lumbar pad; and a guiding unit inserted into the sliding slot of the support cover and moving with the lumbar pad by being combined with the sliding combination part of the lumbar pad.

Description

[0001] APPARATUS FOR ADJUSTING SUPPORT POSITION OF LUMBAR [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a lumbar support adjusting device mounted on a mesh type chair, and more particularly, to a lumbar support adjusting device that can be easily coupled to a mesh type chair, And more particularly, to a device that can more easily and conveniently adjust a portion where a lumbar support of a seated person is supported in accordance with a fatigue stress region or the like.

The mesh-type chair refers to a chair on which a seat with a fabric is provided with a breathable cloth and a backing sheet on which a back of a seated person can be reached. This can provide an advantage that a ventilation is smooth and an original beauty can be created. Use is increasing.

Such a mesh-type chair is supported by the backrest of the seated person by the tension of the fabric sheet, unlike the backrests of other general chairs such as leather and plastic. Therefore, even if the fabric seat is firmly fixed to the backing frame, A strong supporting force can not be transmitted to the central portion of the seated person's lumbar region.

To solve this problem, a chair having a structure in which a structure of a mesh-type chair is modified or an additional independent structure is combined to support a lumbar region of a seated person is disclosed. However, as disclosed in Korean Patent Laid-Open Publication No. 2004-0043126, these chairs are made of a device or structure having a complicated structure, which makes it difficult for the user to easily use, and the manufacturing process becomes complicated and complicated. .

In addition, these chairs have a limitation that they can not have the device scalability because they have the essential problem that the conventional mesh type chair can not be used as it is because the configuration of the lumbar support is implemented through a new structural change of the whole chair or the entire backing frame have.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to provide a lumbar support structure which can easily and conveniently adjust lumbar support portions of a mesh- So that it can be applied to a conventional mesh type chair without involving the need for a lumbar support adjustment device.

Other objects and advantages of the present invention will become apparent from the following description, and it will be apparent from the description of the embodiments of the present invention. Further, the objects and advantages of the present invention can be realized by a combination of the constitution shown in the claims and the constitution thereof.

In order to achieve the above object, the lumbar support adjusting device of the present invention is a device for adjusting a lumbar support portion of a seated person by being coupled to a backrest frame of a mesh type chair comprising a stretchable fabric material, A lumbar pad having sliding engagement portions on both sides thereof and supporting the lumbar of the seated person behind the back plate; A support frame provided on both side surfaces of the body frame and including a sliding slot for guiding upward and downward movement of the lumbar pad; And a guiding unit fitted to the sliding slot of the support cover and coupled to the sliding engagement part of the lumbar pad and moving together with the lumbar pad.

Preferably, the sliding slot of the support cover is formed as a long slot in the vertical direction and is inclined forward as it goes upward. Further, the sliding slot of the support cover is located at the upper part of the lumbar pad It is more preferable that the lumbar pad is inclined forward as the lumbar pad comes in contact with the back plate and the lumbar pad is spaced apart from the back plate when the lumbar pad is positioned at the lower part.

In addition, in the present invention, the outer circumference of the sliding slot of the support cover may have a stepped shape. In this case, the outer circumference of the guiding unit is formed into a flanged shape so as to correspond to the stepped shape of the outer periphery of the sliding slot, It is preferable to be configured to be seated in the sliding slot.

Further, the guiding unit of the present invention may be configured such that a protrusion that is elastically supported is formed on the outer periphery. In this case, one or more grooves having a shape corresponding to the protrusion of the guiding unit may be formed on the outer circumference of the sliding slot. can do.

For the implementation of the more preferred embodiment, the sliding coupling portion of the lumbar pad of the present invention may be provided below the lumbar pad.

The lumbar support adjusting device according to the present invention can realize a device that can adjust the lumbar support portion easily by a simple and simple structure without any complexity, and also, all structures for lumbar support, lifting, So that it can be mounted on a conventional mesh-type chair without substantially changing the structure of the mesh-type chair and the backing frame structure, and thus it is possible to provide an advantage of being able to realize more easily expandable devices .

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate preferred embodiments of the invention and, together with the detailed description of the invention given below, serve to better understand the technical idea of the invention, And shall not be construed as limited to such matters.
BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing a lumbar support adjusting device according to a preferred embodiment of the present invention coupled to a general mesh type chair,
Fig. 2 is an exploded view of each configuration of the lumbar support adjusting apparatus shown in Fig. 1,
FIG. 3 is an exploded view showing a guiding unit of a lumbar support adjustment device and its adjacent configuration according to a preferred embodiment of the present invention,
FIG. 4 is a view showing an operation relationship when the lumbar pads are positioned in a downward direction according to a preferred embodiment of the present invention;
FIG. 5 is a view showing an operation relationship when the lumbar pads are positioned in the upper direction according to a preferred embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and are not intended to represent all of the technical ideas of the present invention. Therefore, various equivalents It should be understood that water and variations may be present.

FIG. 1 is a view showing a lumbar support adjusting device 100 and a lumbar support adjusting device 100 according to a preferred embodiment of the present invention coupled to a general mesh type chair.

As shown in the right drawing of FIG. 1, a conventional mesh type chair has a backboard 20 made of a stretchable fabric material or the like. The backboard 20 is coupled to a backboard frame 10, (Elastic force) is transmitted to the lumbar region or the like of the seated person.

1, the lumbar support adjustment device 100 of the present invention includes a control device 100 mounted on a backboard frame 10 of a mesh-type chair in a state in which a special structural change of a conventional mesh- (100).

The lumbar support adjusting apparatus 100 of the present invention is a lumbar support adjusting apparatus 100 according to an embodiment of the present invention in which the lumbar support adjusting apparatus 100 shown in Fig. 1 is one example for showing a state in which the lumbar support adjusting apparatus 100 of the present invention is engaged, And the coupling structure can be implemented by a general screw fastening structure, so that it can be directly applied to the back frame of most mesh type chairs having various shapes and shapes.

2, the lumbar support adjustment apparatus 100 of the present invention includes a lumbar pad 110, a support cover 120, and a guiding unit 120 for organically coupling the lumbar support 110 and the support cover 120. [ (130).

As shown in the figure, the lumbar pad 110 is an element for supporting the lumbar region of the seated person at the back of the backboard 20, and may be in the form of a plate for proper support of the lumbar region. A sliding engagement portion 111 for engagement is provided on both sides. It goes without saying that the lumbar pad 110 may have a gently rounded shape corresponding to the body structure of the back or lumbar region of the seated person.

The support cover 120 of the present invention is configured to include a body frame 121 and a sliding slot 123 as a unit directly coupled with a backing frame (10 in Fig. 1) of a mesh-type chair. As shown in the drawing, the body frame 121 is provided with an engaging portion 1211 which is coupled to the left and right frames of the backing frame 10. The engaging portion 1211 facilitates universal coupling of the conventional mesh type chair As shown in FIG. 2 and so on, so as to be able to be formed by a fastening hole and a screw.

As shown in the figure, the body frame 121 of the support cover 120 has a configuration in which the left and right sides of the backing frame 10 of the mesh-type chair are connected laterally and supported and is detachably fixed . With this structure, the lumbar support adjustment device 100 of the present invention can be easily applied without causing any special structural change to the backboard frame 10 of the general mesh type chair.

Sliding slots 123 of the support cover 120 are provided on both sides of the body frame 121 to guide the upward and downward movement of the lumbar pad 110 as described above and the guiding unit 130 of the present invention, Is engaged with the sliding coupling portion 111 of the lumbar pad 110 in a state of being fitted into the sliding slot 123 of the support cover 120 as shown in FIG.

That is, since the guiding unit 130 is guided in the sliding slot 123 and is engaged with the sliding engaging part 111 of the lumbar pad 110, the guiding unit 130 is engaged with the sliding engaging part 111 That is, the physical movement of the lumbar pad 110. The guiding unit 130 may be provided with a groove portion and may be detachably and fixedly coupled to the sliding engagement portion 111 of the lumbar pad 110 through the fastening means 137 as illustrated in FIG.

As described above, the lumbar pads for supporting the lumbar spine of the seated person can be vertically moved, and the lumbar support portions of the seated person can be variably adjusted by the up and down movement. The structure for vertically moving the unit supporting the lumbar of the seated person Since the lumbar support adjusting apparatus 100 according to the present invention is implemented with the structure of the lumbar support adjusting apparatus 100 itself according to the present invention, it is necessary to cause a special structural change in the conventional chair and the backing frame of the chair Almost none.

" 형상으로 구현할 수 있다.The shape of the body frame 121 is referred to as a "bridge "," arch ", or "arch ", as shown in FIGS. 1 and 2,

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The lower portion 113 of the lumbar pad may be formed with a protruding shape (see FIGS. 4 and 5) so that the protruded lower portion 113 of the lumbar pad can be moved up and down through a space provided by the body frame shape . When the lumbar pad lower portion 113 protrudes rearward as described above, the seat occupant can grasp the seat occupant with the hand or the like, and the position of the lumbar pad can be easily moved in the vertical direction.

In order to more effectively support the lumbar vertebrae or the like of the seated person, the lumbar pad 110 of the present invention is provided with a sliding engagement portion 111 of the lumbar pad below the lumbar pad 110, It is preferable that the elastic supporting force of the pad 110 is more flexibly transmitted to the lumbar region of the seated person.

3 is a perspective view illustrating a guiding unit 130 of the lumbar support adjusting apparatus 100 according to an exemplary embodiment of the present invention and a sliding slot 123 of the supporting cover 120 which is an adjacent structure of the guiding unit 130, Respectively.

The sliding slot 123 of the support cover 120 is configured to have a stepped outer periphery as shown in FIG. 3 in order to more reliably combine the mutual constitution and maintain the coupled state more effectively, It is preferable that the guiding unit 130 fitted to the sliding slot 123 be formed so that its outer periphery corresponds to the stepped shape of the outer periphery of the sliding slot 123 so as to correspond to the shape of the sliding slot 123 Do.

That is, the sliding slots 123 are formed so as to have different diameters and widths from floor to floor through a stepped structure, and the guiding unit 130 is mounted so that the guiding unit 130 is seated on the floor structure, It is preferable that the outer peripheries of the light emitting diodes have different widths for respective depths and heights.

For example, the width of the body 131 of the guiding unit 130 may be relatively small, and the width of the cover 133 may be larger than the width of the body 131, It can be configured to have a stepped flange shape.

In order to realize a more preferable embodiment, the protrusions 135 to be resiliently supported are formed on the outer circumference of the guiding unit 130, and the guiding unit 130 is also formed on the outer circumference of the sliding slot into which the guiding unit 130 is fitted. One or more grooves 1231 having a shape corresponding to the protrusion 135 of the unit 130 may be provided.

The lumbar pad 110 may be fixed at a specific height at a specific height when the lumbar pad 110 is lifted or lowered and the elasticity of the lumbar pad 1101 due to the mutual engagement of the projection 135 and the groove 1231 When a force exceeding the threshold value of the fixation force is applied, the lumbar pad 110 is raised or lowered beyond the engagement jaw structure. The grooves 1231 may be formed of a plurality of the grooves 1231 in order to variously configure the engaging support structure for the height of each step.

In addition, the sliding slot 123 of the support cover 120 of the present invention is formed as a long slot in the vertical direction. As shown in FIGS. 3 to 5, the sliding slot 123 is inclined forwardly . Furthermore, when the lumbar pad is located at the upper portion and at the lower portion, it is preferable that the degree of fitting with the back plate 20 and the degree of separation from the back plate 20 are adjusted step by step.

In other words, when the lumbar pads are located at the uppermost part, the back plate and the lumbar pads serve as well as they can advance most forward. As the lumbar pads gradually descend, the forward advancement becomes smaller, It is preferable to configure the slope of the slit of the sliding slot so that the lumbar pad is spaced apart from the backing sheet 20 and the degree of the spacing becomes the largest when the lumbar pad is positioned at the lowermost portion.

In the case of such a configuration, the back part protrudes rearward toward the tail bone, and the center part effectively reflects the shape of the lumbar part of the human body facing forward, thereby enabling the seated person to provide optimal supporting force to the desired supporting part.

FIG. 4 shows the lumbar pad 110 positioned at the lowest position in the lumbar support control apparatus 100 according to the present invention. FIG. 5 shows a state in which the lumbar pad 110 is positioned at the highest position . FIG.

As shown in the figure, when the lumbar pads 110 are positioned at the lowest positions, the lumbar pads 110 are relatively retracted rearwardly. Due to such positional relationship, the lumbar region can be effectively supported.

When the lumbar pad 110 is positioned at the highest position, the lumbar pad 110 is relatively advanced forward, that is, toward the seated person. In such a differential advancing structure, the central portion of the lumbar spine So that it can be supported more firmly.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not to be limited to the details thereof and that various changes and modifications will be apparent to those skilled in the art. And various modifications and variations are possible within the scope of the appended claims.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. It should be understood that various modifications may be made in the ordinary skill in the art.

100: lumbar support adjuster
110: lumbar pad
111: sliding engagement portion 113: lower lumbar pad
120: support cover
121: Body frame 123: Sliding slot
1211: engaging portion 1231:
130: guiding unit
131: Body part 133: Cover part
135: projection 137: fastening means

Claims (6)

A backboard is coupled to a backboard frame of a mesh type chair made of a stretchable fabric material to variably adjust a lumbar support portion of a seated person,
A lumbar pad which is formed in a plate shape and has sliding engagement portions on both sides thereof and supports a lumbar of a seated person behind the back plate;
A support frame provided on both side surfaces of the body frame and including a sliding slot for guiding upward and downward movement of the lumbar pad; And
And a guiding unit which is fitted in the sliding slot of the support cover and is coupled to the sliding engagement part of the lumbar pad and moves together with the lumbar pad,
Wherein the sliding slot of the support cover is formed as an elongated slot in a vertical direction and is inclined forward as it goes upward. delete The slide fastener according to claim 1,
When the lumbar pad is positioned at the upper part, the lumbar pad is brought into contact with the back plate, and when the lumbar pad is positioned at the lower part, the lumbar pad is inclined forward And the lumbar support adjustment device. The slide fastener according to claim 1,
The outer periphery is formed in a layered shape,
Wherein the guiding unit has a flange-shaped outer periphery so as to correspond to the stepped shape of the outer periphery of the sliding slot, and is seated in the sliding slot. 5. The apparatus of claim 4, wherein the guiding unit comprises:
A projection to be elastically supported is formed on the outer periphery,
And one or more grooves having a shape corresponding to the protrusion of the guiding unit are formed on an outer periphery of the sliding slot. [2] The lumbar pad according to claim 1,
Wherein the lumbar support is provided at a lower portion of the lumbar support pad.

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