KR101635485B1 - Chair having adjustable-height and adjustable-angle headrest - Google Patents

Chair having adjustable-height and adjustable-angle headrest Download PDF

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Publication number
KR101635485B1
KR101635485B1 KR1020150183428A KR20150183428A KR101635485B1 KR 101635485 B1 KR101635485 B1 KR 101635485B1 KR 1020150183428 A KR1020150183428 A KR 1020150183428A KR 20150183428 A KR20150183428 A KR 20150183428A KR 101635485 B1 KR101635485 B1 KR 101635485B1
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KR
South Korea
Prior art keywords
headrest
hole
chair
user
coupled
Prior art date
Application number
KR1020150183428A
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Korean (ko)
Inventor
이지영
이규윤
Original Assignee
주식회사 다원체어스
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Priority to KR1020150183428A priority Critical patent/KR101635485B1/en
Application granted granted Critical
Publication of KR101635485B1 publication Critical patent/KR101635485B1/en

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Support for the head or the back
    • A47C7/38—Support for the head or the back for the head
    • A47C7/383—Detachable or loose head- or neck-supports, e.g. horse-shoe shaped
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/036—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a head-rest

Abstract

The present invention relates to a chair having a headrest combined with the top of a back frame to be able to adjust the height and the angle, comprising: a rising unit combined with a top frame and a bottom frame of the headrest, which has a slide groove formed on the front surface toward the head of the user in a longitudinal direction when the user sits on the chair, a guide groove formed on the inner side of the slide groove, and a first stopping groove successively formed on both side surfaces of the slide groove in a longitudinal direction; a slider unit which is combined with the slide groove to be relatively moved and has an elastic member with hanging bumps formed on both sides; and a fixing unit whose one side end is combined with the slider unit through the guide groove and whose the other side end is fixated on the top of the back frame. Since the user is able to simply control the position of the headrest by just vertically moving the headrest without controlling any other part such as a button, user convenience can be improved.

Description

[0001] CHAIR HAVING ADJUSTABLE-HEIGHT AND ADJUSTABLE-ANGLE HEADREST [0002]

The present invention relates to a chair having a heelrest coupled to a top of a backrest frame so as to be adjustable in height and angle, and more particularly, to a chair having an upper and lower frame coupled to the headrest, A slide groove is formed in the longitudinal direction of the user's seat when the user sits, a guide hole is formed in the slide groove, and a first stop groove is formed on both side surfaces of the slide groove, A slider part having one end connected to the slider part and the other end connected to the upper part of the backrest frame, And a stationary portion coupled to the supported support. It relates to a chair having a root.

Generally, the chair comprises a seat, a leg supporting the seat, a backrest coupled to the seat and supporting the user's back, and a headrest mounted on the backrest to support the user's head.

The backrest and headrest of the chair are provided with a cushion for user's convenience. In recent years, a chair using a seat which is well ventilated in a high temperature and high humidity environment by a cushion and provides a great convenience to the user is manufactured.

In addition, the headrest of the chair supports the user's head during work or rest, and the height of the headrest can be adjusted according to the user's operation, thereby improving the convenience.

The present invention relates to a technique for adjusting the height of a headrest of a conventional chair, and more particularly, to a technique for adjusting the height of a headrest of a conventional chair, including Korean Utility Model Registration No. 20-0299207, Korean Utility Model Registration No. 20-0304616, Korean Utility Model Registration No. 20-0395900, 20-0422123.

Korean Utility Model Registration No. 20-0299207 discloses an apparatus for adjusting the height of a headrest for a chair which is detachably mounted on a seatback so as to adjust the height of the headrest. The apparatus includes a U- A bracket having a fixing hole at both ends so as to be screwed on the back surface of the seat back and having a female screw hole formed at the center thereof and a fixing piece having a curved portion formed at both ends so as to be in close contact with the outer circumferential surfaces of the supports, And a control knob having a bolt at one end for fixing an arbitrary position between the supports by a fastening force for fastening the fastening member to the female screw hole of the bracket through the through hole of the fastening piece, .

Further, Korean Utility Model Registration No. 20-0304616 discloses a headrest height adjusting device having a headrest frame whose height is adjusted on the top of a backboard skeleton, wherein the headrest frame is inserted into the upper center of the backboard skeleton And a second insertion hole formed to extend horizontally to a predetermined depth from the rear of the backboard skeleton so as to intersect with the first insertion hole so as to intersect with each other in a cross shape corresponding to the first insertion hole, And an elastic member inserted in the second insertion hole and applying an elastic force to the rear side so that the headrest frame inserted through the first insertion hole in a state of being inserted into the second insertion hole loosely penetrates, And the surface contact between the inner circumferential surface of the through hole and the outer circumferential surface of the headrest frame is separated during forward movement, And a push button for controlling the vertical movement of the headrest frame to stop when the inner circumferential surface of the through hole and the outer circumferential surface of the headrest frame are strongly pressed by the elastic force of the elastic member during backward movement, The height adjusting device is described.

In addition, Korean Utility Model Registration No. 20-0395900 discloses a chair composed of a seat back, a seat base and a leg, which is fixed on the upper side of the seat back of a chair and has a guide groove formed at an upper end thereof, A front plate and a rear plate are detachably coupled to each other, a cushioning member is disposed in front of the front plate, and a front plate and a rear plate are detachably coupled to each other, A headrest which is enclosed with a cushioning material in a state that the cushioning material is disposed on the front surface of the plate, an adjuster which is engaged with the rear plate of the headrest and is movable in the up and down direction along the guide groove of the support body, A chair headrest structure including a height adjusting portion formed of a sphere is described.

Korean Utility Model Registration No. 20-0422123 also discloses that the height of a headrest supporting the head of a seated person can be adjusted on the top of the backrest of the chair so that the occupant can use his / The headrest is formed to have a predetermined width to support the head of a seated person, and a pair of pivotal fastening portions, which are hinged to an upper end portion of a pedestal to be described later, are protruded and formed on both sides of the chair A hinge connection portion is formed on both sides of the top and bottom of the headrest portion so as to be coupled to the inner side of the pivotal fixing portion of the headrest portion and has a rod shape having a predetermined length downwardly of the headrest portion, A platform on which a jaw is formed stepwise in the vertical direction, And the lower end of the lower portion is fixedly coupled to be supported by the rear upper end surface of the backrest portion of the chair, A plurality of locking protrusions corresponding to one of the plurality of locking protrusions on a predetermined portion of the inner side and being curved so as to be able to move up and down among the locking protrusions formed in the longitudinal direction, And a fixing cover which is screwed to a front surface of the elevator receiving portion, the chair having a height adjusting head pedestal.

In order to adjust the height of the headrest, the user has to move the position headrest through the operation of a push button or a control knob, and then the headrest is positioned at a desired position. Then, The position of the headrest is adjusted by fixing the position of the headrest by the operation of a knob or the like, or by forming a stopper to fix the position of the headrest.

Therefore, it is inconvenient to operate a button or the like in order to adjust the position of the headrest, and there is a great risk that a component such as a latch stopper is damaged.

Therefore, the present inventor proposes a technique for easily adjusting the height of a headrest without any other parts manipulation.

The present invention aims at solving all of the above problems.

It is another object of the present invention to allow a user to easily adjust the height of a headrest without operating a separate part.

It is another object of the present invention to allow a user to easily adjust the headrest by the force of the head without any additional operation for adjusting the angle of the headrest.

In order to accomplish the objects of the present invention as described above and achieve the characteristic effects of the present invention described below, the characteristic structure of the present invention is as follows.

According to one aspect of the present invention there is provided a chair having a headrest coupled to the top of a backrest frame so as to be adjustable in height, the headrest being coupled to an upper frame and a lower frame of the headrest and having a front- A lift portion formed with a slide groove in a longitudinal direction of a user's head, a guide hole formed in an inner side of the slide groove, a first stop groove formed continuously on both sides of the slide groove in the longitudinal direction, And a slider part having one side end coupled to the slider part through the guide hole and the other end fixed to the upper part of the backrest frame, Characterized in that it comprises a fixed part which is fastened to the headrest The chair is provided.

The present invention allows the user to easily adjust the position of the headrest by simply moving the headrest up and down without manipulating other parts such as a button, thereby enhancing convenience in use by the user.

In addition, the present invention can easily adjust the headrest by the force that the user is expecting without a separate operation for adjusting the angle of the headrest, thereby enhancing the user's convenience.

Further, the present invention can simplify the parts for adjusting the height and the angle of the headrest, thereby reducing the manufacturing cost of the chair.

FIG. 1 is a perspective view schematically illustrating a chair having a headrest adjustable in height and angle according to an embodiment of the present invention.
2A and 2B are exploded perspective views schematically showing a headrest according to an embodiment of the present invention.
Fig. 3 is a plan view schematically showing the elevating portion in Fig. 2a or Fig. 2b.
4A and 4B schematically show the slider portion in FIG. 2A or FIG. 2B, wherein FIG. 4A is a plan view and FIG. 4B is an exploded perspective view.
FIG. 5 is a side view schematically showing the first hinge portion and the second hinge portion in FIGs. 2A and 2B; FIG.
FIG. 6 is a perspective view schematically showing a state of engagement between the fixing part and the first fixing bar in FIG. 2 or FIG. 2B.

The following detailed description of the invention refers to the accompanying drawings, which illustrate, by way of illustration, specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It should be understood that the various embodiments of the present invention are different, but need not be mutually exclusive. For example, certain features, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the invention in connection with an embodiment. It is also to be understood that the position or arrangement of the individual components within each disclosed embodiment may be varied without departing from the spirit and scope of the invention. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is to be limited only by the appended claims, along with the full scope of equivalents to which such claims are entitled, if properly explained. In the drawings, like reference numerals refer to the same or similar functions throughout the several views.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, so that those skilled in the art can easily carry out the present invention.

FIG. 1 is a perspective view schematically illustrating a chair having a headrest having a height and an angle according to an embodiment of the present invention. Referring to FIG. 1, a chair includes a lower portion of a seat 100 on which a user can sit, And the backrest 300 is coupled to the rear surface of the seat 100. As shown in FIG. At this time, the backrest 300 may be formed as a frame, and the frame may be formed as a skeleton formed along an outer periphery of the backrest 300.

The headrest 400 may be coupled to the upper portion of the support portion 410 by a coupling portion 600. The headrest 400 may be coupled to the upper portion of the backrest 300. [ At this time, the headrest 400 may be formed as a frame, and the frame may be formed as a skeleton formed along the outer periphery of the headrest 400. [

In this case, the backrest 300 and the headrest 400 are each formed with a seat, for example, a mesh sheet, to surround the backrest 300 and the frame of the headrest 400 to support the user's back and / .

2A and 2B, the head rest 400 may be provided with a lift part 500 which can be moved in the vertical direction according to a user's operation.

At this time, the elevating part 500 can be coupled to the upper frame and the lower frame of the headrest 400. [

As shown in FIG. 3, when the user sits on the chair, the elevator 500 may have a slide groove 510 formed in the longitudinal direction on a front surface thereof facing the user's head. In addition, a guide hole 502 may be formed in the inner region of the slide groove 501. At this time, the guide hole 502 may be formed to pass through the front surface and the rear surface of the elevating part 500. In addition, first stop grooves 503 may be formed on both side surfaces of the slide groove 501 in the longitudinal direction.

The slider portion 510 may be coupled to the slide groove 501 of the lifting portion 500. At this time, the slider portion 510 can be relatively movable in the slide groove 501. That is, when the position of the slider part 510 is fixed, the elevation part 500 is moved up and down by the user's operation of the elevation part 500, so that the position of the slider part 510 in the slide groove 501 is moved .

4A and 4B, the slider portion 510 may be formed with elastic members 513 having locking projections 512 formed on both sides thereof. At this time, the elastic member 513 may be formed in a bar shape, and a V-shaped hooking protrusion may be formed by folding a certain region of the bar shape. In addition, the elastic member 513 may be integrally formed so that the bar shape is symmetrical on both sides. In addition, the slider 510 may be formed with upper and lower protrusions formed with through holes for screw connection in the body 511, and protrusions may be formed on the outer sides of the upper and lower regions of the protrusions, respectively. (513) may be combined.

When the user moves the elevator unit 500, that is, the headrest 400, to adjust the position of the headrest 400, the user can feel the obstacle 512 (FIG. 5) formed on the elastic member 513 of the slider unit 510, Is moved along the first detent groove 503 of the slide groove 501. When the user stops the movement of the ascending / descending part 500, the latching protrusion 512 of the elastic member 513 is moved And can be fixedly coupled to the first detent groove 503 of the slide groove 501. When the user does not have a force applied to the elevation part 500, that is, the headrest 400, the locking protrusion 512 is inserted into the first detent groove 503 of the slide groove 501, So that the position of the elevating part 500 can be prevented from being changed.

2A and 2B, the slider 510 is inserted into the guide hole 412 of the lift part 500 at one side of the fixing part 520 located at the rear surface of the lift part 500 Can be coupled to the end. Thereby preventing the slider portion 510 from being detached from the slide groove 501. At this time, the engagement between the slider portion 510 and the fixing portion 520 can be achieved by screwing.

The other end of the fixing portion 520 may be coupled to the support portion 410 fixed to the upper portion of the frame of the backrest 300.

When the user moves the headrest 400 up and down in order to adjust the height of the headrest 400 in the thus formed chair, the elevation part 500 is moved by the force applied by the user, The fixing engagement force of the engagement protrusion 512 of the locking protrusion 513 with respect to the first detent groove 503 is overcome and moved to a position corresponding to the operation of the user. When the user stops the force for moving the headrest 400, the locking protrusion 512 is fixedly coupled to the first detent groove 503 to prevent the lift unit 500 from moving.

In addition, when the elevating part 500, the slider part 510, etc. are broken by a simple structure, the screwing can be released and the failed part can be simply replaced.

2A and 2B, the upper end of the support portion 410 and the other end of the fixing portion 520 may be coupled by the coupling portion 600. [ At this time, the engaging portion 600 may rotatably engage the upper end of the support portion 410 and the other end of the securing portion 520. In addition, the coupling portion 600 can couple the upper end of the support portion 410 and the other end of the fixing portion 520 in a hinged manner. The coupling portion 600 may be coupled to the upper end of the support portion 410 and the other end of the fixing portion 520 so that the rotation angle can be tilted.

The coupling portion 600 is formed on both sides of the upper end of the support portion 410 and includes a first hinge portion 601a and a second hinge portion 602b having a first through hole 602a and a second through hole 602b, 601b. The third through hole 602a and the second through hole 602b are formed in the other side of the fixing portion 520 positioned between the first hinge portion 601a and the second hinge portion 601b. And a fixing rod 610 fitted to the through hole 521.

Accordingly, the engaging portion 600 is rotatably engaged with or hinged to the support portion 410 so that the user can adjust the angle of the headrest 400.

5, the engaging portion 600 includes a second detent groove 603a and a third detent groove 603b formed continuously in the circumferential direction on the inner circumferential surfaces of the first through hole 602a and the second through hole 602b, 603b.

At this time, the fixing rod 610 may be formed of a first fixing rod 611a fitted to the second detent groove 603a and a second fixing rod 611b fitted to the third detent groove 603b .

The first fixing rod 611a and the second fixing rod 611b are coupled to the second detent groove 603a and the third detent groove 603b at one end and are rotationally moved, An elastic member formed with the elastic member 612b may be formed. The first fixing rod 611a and the second fixing rod 611b may be formed with fixing rods 613a and 613b which are fixedly coupled to the third through hole 521 at the other end.

6, the third through hole 521 and the fixing rods 613a and 613b may be formed in the same shape as the polygonal shape so that the fixing rods 613a and 613b are formed in the third The fixing portion 520 and the fixing rods 613a and 613b can be rotated in conjunction with each other.

When the user rotates the headrest 400 to adjust the angle of the headrest 400 supporting the head by the engaging portion 600, the user can press the first fixing rod 611a And the engaging projections 612a and 612b of the second fixing rod 611b are moved to a position corresponding to the operation of the user by overcoming the fixing force of the second detent groove 603a and the third detent groove 603b . When the user stops the force for moving the headrest 400, the locking projections 612a and 612b of the first fixing rod 611a and the second fixing rod 611b are engaged with the second locking groove 603a, 3 stop groove 603b so as to prevent the headrest 400 from being rotated to another position so that the user can maintain a desired angle.

The engaging portion 600 may include a driving motor and rotates the first fixing rod 611a and the second fixing rod 611b according to the user's signal so that the angle of the headrest 400 So that it can be adjusted.

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 limited to the disclosed exemplary embodiments, but, on the contrary, Those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.

Therefore, the spirit of the present invention should not be construed as being limited to the above-described embodiments, and all of the equivalents or equivalents of the claims, as well as the following claims, I will say.

100: seat, 200: leg,
300: backrest, 400: headrest,
410: support part, 500: elevating part,
501: slide groove, 502: guide hole,
503: first stop groove, 510: slider part,
512: locking projection, 513: elastic member,
520: fixed portion, 521: third through hole,
600: engaging portion, 601a: first hinge portion,
601b: second hinge portion, 602a: first through hole,
602b: second through hole, 603a: second stop groove,
603b: third stop groove, 610: fixing rod,
611a: first fixing rod, 611b: second fixing rod,
612a and 612b: locking projections, 613a and 613b:
614a, 614b: cap

Claims (7)

A chair having a headrest coupled to an upper portion of a backrest frame so as to be adjustable in height and angle,
A slide groove is formed in a longitudinal direction on a front surface of the headrest facing the user's head when the user sits on the chair and a guide hole is formed inside the slide groove A lift portion having first stop grooves formed on both side surfaces of the slide groove in a longitudinal direction;
A slider portion coupled to the slide groove and relatively movable, the elastic member having locking protrusions formed on both sides thereof;
A locking part having one end coupled to the slider part through the guide hole and the other end coupled to a support part fixed to the upper part of the backrest frame; And
And an engaging portion that engages an upper end of the support portion and the other end of the securing portion,
The coupling portion
A first hinge portion and a second hinge portion formed on both sides of the upper end of the support portion and having a first through hole and a second through hole; And
A fixing bar fitted to the first through hole, the second through hole, and the third through hole formed on the other side end of the fixing portion located between the first hinge portion and the second hinge portion; Wherein the chair has a height and an angle adjustable headrest. The method according to claim 1,
The elastic member
Wherein the bar-like shape is formed by folding a predetermined region of the bar shape so as to form a V-shaped locking protrusion. 3. The method of claim 2,
The elastic member
And the bar shape is integrally formed on both sides so as to be symmetrical. delete delete The method according to claim 1,
The coupling portion
And a second detent groove and a third detent groove formed continuously in the circumferential direction on the inner circumferential surface of the first through hole and the second through hole,
Preferably,
A first fixing bar fitted to the second detent groove and a second fixing bar fitted to the third detent groove,
The first stationary bar and the second stationary bar are
An elastic member coupled to the second detent groove and the third detent groove at one end and rotationally moved to form a locking projection,
And a fixed connecting rod fixedly coupled to the third through hole is formed on the other side of the chair. The method according to claim 6,
Wherein the third through hole and the fixed coupling rod are formed in a polygon having the same shape and the fixed coupling rod is fitted to the third through hole.
KR1020150183428A 2015-12-22 2015-12-22 Chair having adjustable-height and adjustable-angle headrest KR101635485B1 (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108968466A (en) * 2018-09-27 2018-12-11 浙江粤强家具科技有限公司 Swivel chair
CN108991803A (en) * 2018-09-27 2018-12-14 浙江粤强家具科技有限公司 Headrest of revolving chair component
CN109198945A (en) * 2018-11-07 2019-01-15 浙江粤强家具科技有限公司 Headrest lifting regulating mechanism
CN109380907A (en) * 2018-11-26 2019-02-26 陈敏 The headrest of chair
CN109527856A (en) * 2018-12-18 2019-03-29 浙江粤强家具科技有限公司 The bindiny mechanism of chair cushion and rear bearing sheet
KR20190057513A (en) 2017-11-20 2019-05-29 (주) 파트라 A Detachable headrest
KR102002053B1 (en) * 2019-04-22 2019-10-01 (주)광일체어 headrest for chair
KR102071883B1 (en) * 2019-07-02 2020-03-02 (주)베스툴 Chair having a hanger
KR20200123893A (en) * 2019-04-22 2020-11-02 (주)광일체어 headrest for chair
KR102445563B1 (en) * 2022-06-17 2022-09-21 주식회사 체어로 Chair Headrest with Height Adjustment Function
US11864661B2 (en) 2021-05-05 2024-01-09 Steelcase Inc Body support assembly and methods for the use and assembly thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110027317A (en) * 2009-09-10 2011-03-16 (주)제일씨텍 Headrest apparatus capable of adjusting angle

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110027317A (en) * 2009-09-10 2011-03-16 (주)제일씨텍 Headrest apparatus capable of adjusting angle

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190057513A (en) 2017-11-20 2019-05-29 (주) 파트라 A Detachable headrest
CN108991803A (en) * 2018-09-27 2018-12-14 浙江粤强家具科技有限公司 Headrest of revolving chair component
CN108968466A (en) * 2018-09-27 2018-12-11 浙江粤强家具科技有限公司 Swivel chair
CN109198945A (en) * 2018-11-07 2019-01-15 浙江粤强家具科技有限公司 Headrest lifting regulating mechanism
CN109380907B (en) * 2018-11-26 2024-01-12 陈敏 Headrest of chair
CN109380907A (en) * 2018-11-26 2019-02-26 陈敏 The headrest of chair
CN109527856A (en) * 2018-12-18 2019-03-29 浙江粤强家具科技有限公司 The bindiny mechanism of chair cushion and rear bearing sheet
KR102002053B1 (en) * 2019-04-22 2019-10-01 (주)광일체어 headrest for chair
KR20200123893A (en) * 2019-04-22 2020-11-02 (주)광일체어 headrest for chair
KR102193182B1 (en) 2019-04-22 2020-12-21 (주)광일체어 headrest for chair
KR102071883B1 (en) * 2019-07-02 2020-03-02 (주)베스툴 Chair having a hanger
US11864661B2 (en) 2021-05-05 2024-01-09 Steelcase Inc Body support assembly and methods for the use and assembly thereof
KR102445563B1 (en) * 2022-06-17 2022-09-21 주식회사 체어로 Chair Headrest with Height Adjustment Function

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