KR101441074B1 - Chair having variable arm supporter - Google Patents

Abstract

The present invention
The present invention relates to an armrest adjustable chair to be included.
According to the present invention, it is possible to freely change the position of the armrest, thereby allowing the user to comfortably support the arm, thereby enhancing the satisfaction of rest, and enabling appropriate arm support for use of the keyboard or mouse, And to prevent diseases caused by keyboard or mouse syndrome.

Description

{CHAIR HAVING VARIABLE ARM SUPPORTER}

The present invention relates to an armrest adjustable chair, and more particularly, it relates to an armrestrest adjustable chair capable of freely varying the position of an armrest, thereby allowing a user to comfortably support his arm, So as to improve work efficiency by making it possible to support the arm properly.

Generally, a chair is a device for a person to sit on, most of which have a backrest, and have various structures and designs depending on the purpose and function.

The conventional chair includes a seat plate providing an area for a person to sit on, a plurality of legs provided to extend downward from the seat plate to be supported on the ground, and a backrest provided to support a person's back on the seat plate, A neck support is provided on the upper part of the backrest to support a person's neck, and an armrest is provided on both sides of the seat so as to extend the arms of a person.

Further, the legs of the chair may be provided with a wheel so as to be slidable from the ground.

On the other hand, in recent years, the use time of a keyboard and a mouse is increasing due to the use of computers and the like in most tasks.

However, the conventional chair has a limitation in properly supporting the arm when the keyboard and the mouse are operated, and thus has a limitation in increasing work efficiency.

This problem has hindered the correct use of the keyboard or mouse, which has resulted in diseases caused by the keyboard and mouse syndrome.

In order to solve these problems, a separate cuff support can be purchased. However, in this case, not only the cost but also the space required for installation of the cuff support is inconvenient.

In order to solve the above-described problems, the present invention is capable of freely changing the position of the armrest, thereby allowing the user to comfortably support the arm, thereby improving the satisfaction of rest, So as to improve work efficiency and to prevent disease caused by keyboard or mouse syndrome.

Other objects of the present invention will become readily apparent from the following description of the embodiments.

In order to achieve the above object, according to one aspect of the present invention, there is provided a chair comprising: a frame portion provided to extend upward from both sides of a seat; A rotating member which is rotatably stacked on a top of each of the frame portions by a first shaft; And an armrest which is rotatably stacked on the upper side of each of the rotatable members by a second shaft eccentric to the first axis and which supports an arm of a user.

And first rotation limiting means for selectively permitting and suppressing rotation of the rotary member from the frame portion.

Wherein the first rotation limiting means comprises: a plurality of first teeth formed on an outer peripheral surface of an end of the first shaft, which is perpendicular to any one of the frame portion and the rotary member; A first insertion groove formed to insert the first shaft into the other of the frame part and the rotary member; A plurality of second teeth formed to be engaged with the first teeth along an inner circumferential surface of the first insertion groove excluding an inlet side; And a first spring installed to allow relative rotation of the frame portion and the rotatable member through the first axis to provide an elastic force to maintain the first value in tooth engagement with the second tooth .

And second rotation restricting means for selectively permitting and inhibiting rotation of the arm rest from the rotatable member.

The second rotation limiting means includes a plurality of third teeth formed on an outer peripheral surface of an end of the second shaft perpendicularly provided to one of the rotary member and the arm support; A second insertion groove formed in the other of the rotary member and the arm support to insert the second shaft; A plurality of fourth teeth formed to be engaged with the third teeth along the inner circumferential surface of the second insertion groove excluding the entrance side; And a second spring installed to allow a relative rotation of the rotary member and the arm rest through the second shaft to provide an elastic force to maintain the third value in a state of being meshed with the fourth tooth .

The frame portion is provided with a sliding bar and a sliding groove so as to be slidable on both sides divided vertically, a plurality of teeth are formed along the longitudinal direction on a side portion of the sliding bar, The height can be adjusted by selectively engaging a part of the teeth.

According to the present invention, it is possible to freely change the position of the armrest, thereby allowing the user to comfortably support the arm, thereby improving the satisfaction of rest, So that work efficiency can be improved, and further, diseases caused by keyboard or mouse syndrome can be prevented.

1 is a perspective view illustrating an arm rest of a chair according to an embodiment of the present invention,
FIG. 2 is a front view showing an armrest of an armrest adjustable chair according to an embodiment of the present invention,
FIG. 3 is a side view showing an armrest of an armrest adjustable chair according to an embodiment of the present invention,
FIG. 4 is an enlarged cross-sectional view of the main part of the armrest-adjustable chair according to the embodiment of the present invention,
5 is a sectional view for explaining the operation of the rotation restricting means of the arm rest of the arm according to the embodiment of the present invention,
6 and 7 are plan views for explaining the operation of the armrest adjustable chair according to an embodiment of the present invention.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but is to be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention, And the scope of the present invention is not limited to the following examples.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like or corresponding elements are denoted by the same reference numerals, and redundant explanations thereof will be omitted.

FIG. 1 is a perspective view showing an armrest according to an embodiment of the present invention, FIG. 2 is a front view showing an armrest of an armrest adjustable chair according to an embodiment of the present invention, FIG. FIG. 3 is a side view showing an armrest of an armrest adjustable chair according to an embodiment of the present invention.

1 to 3, an arm rest 100 according to an embodiment of the present invention may include a frame 120, a rotary member 140, and an arm support 160 have.

The frame portion 120 is provided to extend upward from both sides of the seat panel 110, which provides an area for the user to sit on.

The frame part 120 is provided with a sliding bar 121 and a sliding groove 122 so as to be slidable on both sides divided vertically and a plurality of teeth 123 are formed along the longitudinal direction on the side of the sliding bar 121 And the height can be adjusted by selectively engaging a part of the teeth 123 with the latch 124 which is exposed to the outside so as to be returned by the return spring 125. [ In other words, the frame 120 is pushed by the pawl 124 in a state of having the desired height by sliding the sliding bar 121 inside the sliding groove 122 in a state in which the pawl 124 is depressed and released from the teeth 123 The latch 124 is returned by the return spring 125 to be caught by the teeth 123 so that the sliding bar 121 is fixed in the sliding groove 122 to maintain the desired height.

A leg 210 may be provided at a lower portion of the seat 110 to be spaced apart from the ground and a back plate 190 may be provided to support the back of the user from the rear side to the upper side. Here, the legs 210 may be branched into a plurality of branches, and the wheels 211 may be installed at the ends thereof.

The rotary member 140 is rotatably stacked on the upper side of each of the frame parts 120 by a first shaft 130 and may be formed of various types of plates including a circular plate.

The first shaft 130 may be vertically fixed to the upper end of the frame part 120 and may be rotatably coupled to the rotation member 140 as in the present embodiment. And can be rotatably coupled to the frame part 120. The frame part 120 can be rotated.

The armrest 160 is rotatably stacked on the upper side of each of the rotary members 140 by a second shaft 150 eccentric to the first shaft 130 to support the user's arm.

The second shaft 150 may be vertically fixed to the upper end of the rotary member 140 and may be rotatably coupled to the arm support 160 as in the present embodiment. And can be rotatably coupled to the rotary member 140. [0050]

4, the arm rest 100 according to the present invention includes a first rotation limiting means 170 for selectively permitting and inhibiting the rotation of the rotary member 140 from the frame portion 120, And second rotation limiting means 180 for selectively allowing and inhibiting rotation of the armrest 160 from the rotary member 140. [

The first rotation limiting means 170 includes a plurality of first teeth 171 formed on an outer peripheral surface of an end of a first shaft 130 perpendicular to one of the frame 120 and the rotary member 140, A first insertion groove 172 formed to insert the first shaft 130 into the other one of the frame 120 and the rotary member 140 and a second insertion groove 172 formed in the first insertion groove 172 along the inner circumferential surface, A plurality of second teeth 173 formed to be in a tooth-like engagement with the first teeth 171 and a plurality of second teeth 173 formed to be engaged with the first teeth 171, And a spring 174.

The first spring 174 is installed to allow relative rotation of the frame portion 120 and the rotary member 140 through the first shaft 130. The first fixing pieces 175 and 176 are fastened to the frame 120 and the rotary member 140 by fastening members such as bolts and screws, Or may be fixed using an adhesive or fixed by an engagement structure. At least one of the first fixing pieces 175 and 176 is hooked by the engaging protrusion 177 so as to be prevented from being separated from the frame 120 or the rotary member 140 in a rotatable state, And allows the relative rotation of the rotary member 140 with respect to each other.

The second rotation restricting means 180 includes a plurality of third teeth 181 formed on the outer circumferential surface of the end of the second shaft 150 perpendicular to one of the rotary member 140 and the arm rest 160, A second insertion groove 182 formed to insert the second shaft 150 into the other one of the rotary member 140 and the arm support 160 and a second insertion groove 182 formed in the second insertion groove 182 along the inner circumferential surface, A plurality of fourth teeth 183 formed to be in a tooth-like engagement with the third teeth 181 and a plurality of fourth teeth 183 formed to be engaged with the third teeth 181, Spring 184 may be included.

The second spring 184 is installed to allow relative rotation of the rotary member 140 and the arm support 160 through the second shaft 150. The second fixing pieces 185 and 186 are fastened to the rotary member 140 and the arm bracket 160 by fastening members such as bolts and screws, Or may be fixed using an adhesive or fixed by an engagement structure. At least one of the second fixing pieces 185 and 186 is hooked by the engaging protrusion 187 so as to be prevented from being separated from the rotating member 140 or the arm support 160 in a rotatable state, And the arm rest 160 are allowed to rotate relative to each other.

Hereinafter, the operation of the armrest-adjustable chair according to the present invention will be described.

5, when the rotary member 140 or the arm support 160 is lifted so as to be spaced apart from the frame 120 or the rotary member 140, the first tooth 171 or the third tooth 181, Is separated from the second tooth 173 or the fourth tooth 183. 6 and 7 by rotating the rotary member 140 or the arm support 160 about the first axis 130 or the second axis 150 by rotating the rotary member 140 or the armrest 160 at a desired posture or angle The rotation member 140 or the arm support 160 descends by the first spring 174 or the second spring 184 and the frame member 120 is lowered by the first spring 174 or the second spring 184. [ Or the rotary member 140 so that the first tooth 171 or the third tooth 181 is coupled to the second tooth 173 or the fourth tooth 183, The rotation of the pedestal 160 is suppressed, and a desired posture and angle are maintained.

As described above, the position variable area of the arm rest 160 can be expanded by the first shaft 130 and the second shaft 150, which are eccentrically erected, so that the armrest 160 can be freely changed The user can comfortably support his / her arm, thereby improving the satisfaction of the rest. In addition, it is possible to improve the work efficiency by enabling proper support of the arm for the use of the keyboard or mouse, and further, prevent diseases caused by the keyboard or mouse syndrome .

Although the present invention has been described with reference to the accompanying drawings, it is to be understood that various changes and modifications may be made without departing from the spirit of the invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined by the equivalents of the claims, as well as the following claims.

110: seat plate 120: frame part
121: Sliding bar 122: Sliding groove
123: toothed wheel 124:
125: return spring 130:
140: rotating member 150: second axis
160: arm support 170: first rotation restricting means
171: first tooth 172: first insertion groove
173: second tooth 174: first spring
175, 176: first fixing piece 177:
180: second rotation limiting means 181: third value
182: second insertion groove 183: fourth value
184: second spring 185, 186: second fixing piece
187: hanging jaw 190: back plate
210: legs 211: wheels

Claims (6)

In the chair,
A frame portion provided to extend upward from both sides of the seat;
A rotating member which is rotatably stacked on a top of each of the frame portions by a first shaft;
An arm rest which is rotatably stacked on a top of each of the rotatable members by a second axis eccentric to the first axis and which supports a user's arm;
And first rotation limiting means for selectively permitting and inhibiting rotation of the rotary member from the frame portion,
The first rotation limiting means includes:
A plurality of first teeth formed on an outer peripheral surface of an end of the first shaft, the first teeth being perpendicular to one of the frame and the rotary member;
A first insertion groove formed to insert the first shaft into the other of the frame part and the rotary member;
A plurality of second teeth formed to be engaged with the first teeth along an inner circumferential surface of the first insertion groove; And
A first fixing member fixed to the frame portion and the rotation member to allow relative rotation of the frame portion and the rotation member through the first shaft so as to maintain the first value held in engagement with the second tooth, A first spring installed on the side of the first spring;
And an adjustable armrest. delete delete 2. The armrest changer according to claim 1, further comprising second rotation restricting means for selectively permitting and inhibiting rotation of said armrest from said rotary member. 5. The apparatus according to claim 4,
A plurality of third teeth formed on an outer circumferential surface of an end of the second shaft perpendicularly to one of the rotary member and the arm support;
A second insertion groove formed in the other of the rotary member and the arm support to insert the second shaft;
A plurality of fourth teeth formed to be engaged with the third teeth along the inner peripheral surface in the second insertion groove; And
And a second fixing member fixed to the rotary member and the armrest so as to allow the rotary member and the armrest to rotate relative to each other through the second shaft so that the third value is retained in the fourth tooth, A second spring installed on the side;
And an adjustable armrest. delete

Images