JP4520622B2 - Seat mounting device in chair - Google Patents
Seat mounting device in chair Download PDFInfo
- Publication number
- JP4520622B2 JP4520622B2 JP2000335424A JP2000335424A JP4520622B2 JP 4520622 B2 JP4520622 B2 JP 4520622B2 JP 2000335424 A JP2000335424 A JP 2000335424A JP 2000335424 A JP2000335424 A JP 2000335424A JP 4520622 B2 JP4520622 B2 JP 4520622B2
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- JP
- Japan
- Prior art keywords
- seat plate
- hole
- mounting
- mounting bracket
- seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Description
【０００１】
【発明の属する技術分野】
本発明は、椅子における座の取付装置に関する。
【０００２】
【従来の技術】
従来の回転椅子には、背凭れに寄り掛かる座者の荷重により、背凭れが後方に揺動するとともに座も傾動し、かつ前後動するものがある。このような機構のものは、座者の座り心地を改善し、疲労感をなくす利点がある。
【０００３】
【発明が解決しようとする課題】
近年のパソコン等ＯＡ機器の普及により、回転椅子において、上述のような座の傾動機構ばかりでなく、背凭れや肘掛けに対する座の前後位置を微妙に調節して、机上のパソコンのキーボード使用時における座者の背凭れ及び肘掛けに対する関係位置を最適に保ち得たいという要求が生じている。この要求に応ずるように、座の座板を、支基上の座板取付金具に取り付けるには、可成りの面倒な機構が必要となる。
【０００４】
本発明は、上述の問題点に鑑み、単純な構造であり、かつ簡単な操作により、回転椅子の座板を、支基上の座板取付金具に取り付けるようにすることを目的としている。
【０００５】
【課題を解決するための手段】
本発明によると、上記課題は、次のようにして解決される。
(１) 椅子の支基上に配設された座板取付金具の左右両側の前後に、大径孔と、この大径孔から前後方向いずれかから連設された大径孔よりも幅狭の長孔とからなる取付孔を穿設し、座板の下面における前記大径孔との対向位置に、前記長孔の幅と同幅もしくは幅狭の下方を向く取付軸を突設し、該取付軸の下端に設けた、前記大径孔より小径で、前記長孔の幅より幅広の鍔を、前記大径孔より挿通した状態から、取付軸が前記長孔内に位置するように、前記座板を、座取付金具に対して前後移動させることによって、前記座板取付金具に前記座板を取り付けるようにし、さらに、前記座板取付金具を、後部の左右方向に延びる横杆の左右端部に、前後方向に延びる断面上向コ形のレールを固着して構成し、前記両レールの底部に、前記取付孔を設け、かつ前記座板の裏面に、前記レールの外側の立ち上がり部の内側に接する前後方向を向く突条を設ける。
【０００６】
(２) 上記(１)項において、座板取付金具の取付孔の長孔を、大径孔の後方に連設し、座板の取付軸を、前記座板取付金具の取付孔に挿通移動させた状態において、前記座板の後部にストッパを取り付け、このストッパが、前記座板取付金具の後端に係合して、前記取付軸が前記取付孔の大径孔まで戻らないようにする。
【０００７】
【発明の実施の形態】
図１は、本発明装置の一実施形態を備えるキャスター付き回転椅子の分解斜視図で、キャスター付きの脚(１)の上端に、支基(２)が回転自在に装架されており、支基(２)の後部において左右方向に延びる横軸(３)には、背凭れ(４)の左右を支持し、かつ背凭れ(４)の下端から前方に延びる背杆(５)の先端に形成された、左右方向を向く軸筒(６)が軸着されている。
【０００８】
座板取付金具(７)の後部左右の軸受部(８)には、背凭れ(４)の背杆(５)の中間位置に設けられた耳片(９)が回動可能に収容されるとともに、軸受部(８)の外端には、肘掛け支柱(10)の下端部が取り付けられている。
座板取付金具(７)の前端部には、下方に突出する耳片(11)が設けられており、耳片(11)は、支基(２)の前部に設けた長孔(12)に、ピンにより取り付けられている。
【０００９】
図１〜図３に示すように、座板取付金具(７)は、後部の左右方向に延びる横杆(13)の左右端部に、前後方向に延びる断面上向コ形のレール(14)を強固に溶接して構成されている。
【００１０】
横杆(13)は、鋼板を断面上向きコ字状に曲げ、その両端を水平方向外側に曲げてフランジとしたもので、両端部付近を上部から切り欠き、この切り欠き部分に、レール(14)をはめ込んで溶接してある。
【００１１】
レール(14)も、同様に鋼板を断面上向きコ字状に曲げて形成してなり、その内側端は、水平に曲げてフランジ(14a)を形成しており、フランジ(14a)の前端部付近には、多数段の凹溝(15)（図示の場合６段）が、前後方向に列設されている。この凹溝(15)が、後述する座板の突起に嵌合する被係合部を構成している。
【００１２】
レール(14)の前部及び後部において、その底部には、大径孔(16a)とこれに引き続いて後方に向かって延びる小径で長さの長い長孔(16b)とからなる取付孔(16)が穿設されている。
なお、レール(14)の前部の内側には、前述の耳片(11)が設けられている。
【００１３】
図１に示す座(17)の下部の座板(18)の裏面には、図４に示すように、レール(14)の外側の立ち上がり部の内側に接する位置に、前後方向に長く延びる突条(20)が設けられている。
【００１４】
また、図４及び図５に示すように、座板取付金具(７)のレール(14)に穿設した取付孔(16)に対応して突設した鍔付き取付軸(19)が、下方に向けて突設されている。この取付軸(19)の鍔(19a)の径は、取付孔(16)の大径孔(16a)よりも若干小径とされている。また、取付軸(19)の径は、長孔(16b)の幅と同じか、それよりも若干小径とされている。
なお、図４には、座板取付金具(７)の取付孔(16)の位置も、併せて示してある。
【００１５】
座板(18)の裏面の前部付近には、座板取付金具(７)のレール(14)の凹溝(15)に対応する左右位置に、係合部を構成する２つの突起(21a)を備える突起部材(21)が取り付けられている。
【００１６】
さらに、図４及び図５に示すように、座板(18)の後部における座板取付金具(７)のレール(14)に対応する左右方向位置には、ストッパ(22)が取り付けられる。
【００１７】
座板(18)の下面に突設された突条(20)を、レール(14)の外側の立ち上がり部の内側に接するようにして挿入するとともに、取付軸(19)の鍔(19a)を、座板取付金具(７)の取付孔(16)の大径孔(16a)に上方より挿通する。このような挿通状態から、座板(18)を若干上方に持ち上げ加減としながら後方に引くと、座板(18)の突条(20)はレール(14)により案内されて、座板(18)は後方に移動し、取付軸(19)は取付孔(16)の長孔(16b)にはまりこむ。手を離すと、座板(18)の突起(21a)は、凹溝(15)に嵌合する。
【００１８】
この状態で、ストッパ(22)を座板(18)の後部に固定すると、座板(18)を同様にして前方に移動させても、このストッパ(22)がレール(14)の後端に当接して、取付軸(19)が取付孔(16)の大径孔(16a)まで達せず、従って、座板(18)が座板取付金具(７)から外れなくなる。
【００１９】
座(17)の前後位置の調節に当たっては、図６に示すように、座板(18)の前端を点線矢印により示すようにやや持ち上げ、座板(18)の下面の突起(21a)を、座板取付金具(７)のレール(14)の凹溝(15)から離す。取付軸(19)は、これを可能とするに充分な長さとされている。
【００２０】
この状態で、図６の上部に点線矢印により示すように、座板(18)を前後方向に移動させて所望位置とし、座板(18)の前部を下ろすと、突起(21a)は、新たた凹溝(15)と係合し、その位置で係止される。
【００２１】
【発明の効果】
請求項１記載の発明によれば、単純な機構、かつ簡単な操作で、容易に座板を座板取付金具に取り付けることができる。
【００２２】
請求項２記載の発明によれば、ストッパを取り外さない限り、座板は座板取付金具から外れることがない。
【図面の簡単な説明】
【図１】本発明装置の一実施形態を備える回転椅子の分解斜視図である。
【図２】図１に示す椅子の座板取付金具の斜視図である。
【図３】同じく、座板取付金具の平面図である。
【図４】同じく、座板の裏面図である。
【図５】同じく、座板取付金具と座板とを、離した状態で示す側面図である。
【図６】同じく、座板取付金具と座板とを、結合した状態で示す側面図である。
【符号の説明】
(１)脚
(２)支基
(３)横軸
(４)背凭れ
(５)背杆
(６)軸筒
(７)座板取付金具
(８)軸受部
(９)耳片
(10)肘掛け支柱
(11)耳片
(12)長孔
(13)横杆
(14)レール
(14a)フランジ
(15)凹溝(被係合部)
(16)取付孔
(16a)大径孔
(16b)長孔
(17)座
(18)座板
(19)取付軸
(19a)鍔
(20)突条
(21)突起部材
(21a)突起(係合部)
(22)ストッパ[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a seat mounting device in a chair.
[0002]
[Prior art]
In some conventional swivel chairs, the backrest swings backward, the seat tilts, and moves back and forth due to the load of a seated person leaning on the backrest. The thing of such a mechanism has the advantage which improves a seating comfort of a seated person and eliminates a feeling of fatigue.
[0003]
[Problems to be solved by the invention]
With the spread of OA equipment such as personal computers in recent years, in the swivel chair, not only the seat tilt mechanism as described above, but also the back and front position of the seat with respect to the backrest and armrests are finely adjusted, when using the keyboard of the personal computer on the desk There has been a demand for optimally maintaining the position of the seater relative to the backrest and armrest. In order to meet this requirement, a considerable troublesome mechanism is required to attach the seat plate of the seat to the seat plate mounting bracket on the support base.
[0004]
In view of the above-described problems, an object of the present invention is to attach a seat plate of a rotary chair to a seat plate mounting bracket on a support base with a simple structure and simple operation.
[0005]
[Means for Solving the Problems]
According to the present invention, the above problem is solved as follows.
(1) A large-diameter hole on the left and right sides of the seat plate mounting bracket on the chair base, and a narrower width than the large-diameter hole connected from either side of the large-diameter hole in the front-rear direction A mounting hole is formed at the position facing the large-diameter hole on the lower surface of the seat plate, and a mounting shaft is provided to face the lower side of the width of the long hole. The mounting shaft is positioned in the long hole from a state where a flange having a diameter smaller than that of the large diameter hole and wider than the width of the long hole is inserted through the large diameter hole. The seat plate is moved back and forth with respect to the seat mounting bracket, so that the seat plate is attached to the seat plate mounting bracket. The left and right end portions are configured by adhering cross-sectionally upward U-shaped rails extending in the front-rear direction, and the mounting holes are formed in the bottom portions of both rails. Provided, and on the back surface of the seat plate, Ru provided projections facing longitudinal direction in contact with the inner side of the rising portion of the outside of the rail.
[0006]
(2) In the above section (1), the long hole of the mounting hole of the seat plate mounting bracket is connected to the rear of the large-diameter hole, and the mounting shaft of the seat plate is inserted through the mounting hole of the seat plate mounting bracket. In this state, a stopper is attached to the rear part of the seat plate, and this stopper engages with the rear end of the seat plate mounting bracket so that the mounting shaft does not return to the large diameter hole of the mounting hole. .
[0007]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is an exploded perspective view of a swivel chair with casters provided with an embodiment of the apparatus of the present invention. A support base (2) is rotatably mounted on the upper end of a leg (1) with casters. The horizontal axis (3) extending in the left-right direction at the rear part of the base (2) supports the left and right sides of the backrest (4) and extends from the lower end of the backrest (4) to the front end of the backrest (5). A shaft cylinder (6) formed in the left-right direction is axially attached.
[0008]
The ear piece (9) provided at the intermediate position of the backrest (5) of the backrest (4) is rotatably accommodated in the left and right bearing portions (8) of the rear portion of the seat plate mounting bracket (7). At the same time, the lower end of the armrest strut (10) is attached to the outer end of the bearing (8).
An ear piece (11) protruding downward is provided at the front end of the seat plate mounting bracket (7). The ear piece (11) is a long hole (12 in the front part of the support base (2)). ) With a pin.
[0009]
As shown in FIG. 1 to FIG. 3, the seat plate mounting bracket (7) is provided with rails (14) extending upward in the front-rear direction at the left and right ends of the horizontal bar (13) extending in the left-right direction. It is constructed by welding firmly.
[0010]
The horizontal bar (13) is a steel plate bent in a U shape with the cross section facing upward and bent at both ends in the horizontal direction to form flanges, and both ends are cut out from the top, and the rail (14 ) Is fitted and welded.
[0011]
Similarly, the rail (14) is formed by bending a steel plate in an upward U-shaped cross section, and its inner end is bent horizontally to form a flange (14a), near the front end of the flange (14a). A plurality of concave grooves (15) (six stages in the figure) are arranged in the front-rear direction. The concave groove (15) constitutes an engaged portion that fits into a protrusion of a seat plate, which will be described later.
[0012]
At the front and rear of the rail (14), the bottom is provided with a mounting hole (16a) consisting of a large-diameter hole (16a) and a long hole (16b) having a small diameter and a length extending toward the rear. ) Is drilled.
The aforementioned ear piece (11) is provided inside the front portion of the rail (14).
[0013]
As shown in FIG. 4, a protrusion extending long in the front-rear direction on the back surface of the seat plate (18) below the seat (17) shown in FIG. 1 is in contact with the inside of the rising portion outside the rail (14). Article (20) is provided.
[0014]
Also, as shown in FIGS. 4 and 5, the hooked mounting shaft (19) projecting from the mounting hole (16) drilled in the rail (14) of the seat plate mounting bracket (7) It is projecting toward. The diameter of the flange (19a) of the mounting shaft (19) is slightly smaller than the large diameter hole (16a) of the mounting hole (16). The diameter of the mounting shaft (19) is the same as or slightly smaller than the width of the long hole (16b).
FIG. 4 also shows the position of the mounting hole (16) of the seat plate mounting bracket (7).
[0015]
In the vicinity of the front part of the back surface of the seat plate (18), two protrusions (21a) constituting the engaging portion are arranged at left and right positions corresponding to the concave grooves (15) of the rail (14) of the seat plate mounting bracket (7). ) Is provided.
[0016]
Further, as shown in FIGS. 4 and 5, a stopper (22) is attached to a position in the left-right direction corresponding to the rail (14) of the seat plate mounting bracket (7) at the rear portion of the seat plate (18).
[0017]
Insert the ridge (20) projecting from the lower surface of the seat plate (18) so as to contact the inside of the rising part on the outside of the rail (14), and insert the flange (19a) of the mounting shaft (19). The large-diameter hole (16a) of the mounting hole (16) of the seat plate mounting bracket (7) is inserted from above. When the seat plate (18) is lifted slightly upward and pulled backward from such an inserted state, the ridge (20) of the seat plate (18) is guided by the rail (14), and the seat plate (18 ) Moves rearward, and the mounting shaft (19) fits into the long hole (16b) of the mounting hole (16). When the hand is released, the projection (21a) of the seat plate (18) is fitted into the concave groove (15).
[0018]
In this state, when the stopper (22) is fixed to the rear part of the seat plate (18), even if the seat plate (18) is moved forward in the same manner, the stopper (22) is attached to the rear end of the rail (14). Due to the contact, the mounting shaft (19) does not reach the large-diameter hole (16a) of the mounting hole (16), and therefore the seat plate (18) cannot be detached from the seat plate mounting bracket (7).
[0019]
When adjusting the front and rear position of the seat (17), as shown in FIG. 6, the front end of the seat plate (18) is slightly lifted as indicated by the dotted arrow, and the protrusion (21a) on the lower surface of the seat plate (18) is Separate from the groove (15) of the rail (14) of the seat plate mounting bracket (7). The mounting shaft (19) is long enough to allow this.
[0020]
In this state, as shown by a dotted arrow at the top of FIG. 6, when the seat plate (18) is moved in the front-rear direction to a desired position and the front portion of the seat plate (18) is lowered, the protrusion (21a) is Engage with the new groove (15) and lock in place.
[0021]
【The invention's effect】
According to the first aspect of the present invention, the seat plate can be easily attached to the seat plate mounting bracket by a simple mechanism and simple operation.
[0022]
According to the second aspect of the present invention, the seat plate is not detached from the seat plate mounting bracket unless the stopper is removed.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a swivel chair provided with an embodiment of the device of the present invention.
FIG. 2 is a perspective view of a seat plate mounting bracket of the chair shown in FIG.
FIG. 3 is also a plan view of a seat plate mounting bracket.
FIG. 4 is also a back view of the seat plate.
FIG. 5 is also a side view showing the seat plate mounting bracket and the seat plate in a separated state.
FIG. 6 is a side view showing the seat plate mounting bracket and the seat plate in a coupled state.
[Explanation of symbols]
(1) Leg
(2) Support base
(3) Horizontal axis
(4) Backrest
(5) dorsal fin
(6) Shaft cylinder
(7) Seat plate mounting bracket
(8) Bearing part
(9) Ear pieces
(10) Armrest prop
(11) Ear piece
(12) Long hole
(13) Yokohama
(14) Rail
(14a) Flange
(15) Groove (engaged part)
(16) Mounting hole
(16a) Large diameter hole
(16b) Long hole
(17) Seat
(18) Seat plate
(19) Mounting shaft
(19a) 鍔
(20) ridge
(21) Protruding member
(21a) Projection (engagement part)
(22) Stopper
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000335424A JP4520622B2 (en) | 2000-11-02 | 2000-11-02 | Seat mounting device in chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000335424A JP4520622B2 (en) | 2000-11-02 | 2000-11-02 | Seat mounting device in chair |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002136385A JP2002136385A (en) | 2002-05-14 |
| JP4520622B2 true JP4520622B2 (en) | 2010-08-11 |
Family
ID=18811173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000335424A Expired - Fee Related JP4520622B2 (en) | 2000-11-02 | 2000-11-02 | Seat mounting device in chair |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4520622B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4636843B2 (en) * | 2004-10-05 | 2011-02-23 | 株式会社岡村製作所 | Seat front / rear sliding device in a chair |
| JP5062614B2 (en) * | 2006-12-08 | 2012-10-31 | コクヨ株式会社 | Chair |
| JP4695165B2 (en) * | 2008-06-20 | 2011-06-08 | 株式会社岡村製作所 | Seat front / rear sliding device in a chair |
| CN201934456U (en) * | 2010-12-21 | 2011-08-17 | 嘉瑞福(浙江)家具有限公司 | Screw-free fixing device for seat cushion and chassis of office chair |
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| JPH07194454A (en) * | 1993-12-01 | 1995-08-01 | Wilkhahn Wilkening & Hahne Gmbh & Co | Chair |
| JPH09294646A (en) * | 1996-05-07 | 1997-11-18 | Nanba Press Kogyo Kk | Movable seat |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3438304B2 (en) * | 1994-04-08 | 2003-08-18 | 株式会社イトーキクレビオ | Chair |
| JP3781826B2 (en) * | 1996-06-11 | 2006-05-31 | タカノ株式会社 | Chair seat slide device |
-
2000
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5327988B2 (en) * | 1975-03-27 | 1978-08-11 | ||
| JPS6162634U (en) * | 1984-09-29 | 1986-04-26 | ||
| JPH02124043U (en) * | 1989-03-27 | 1990-10-12 | ||
| JPH07194454A (en) * | 1993-12-01 | 1995-08-01 | Wilkhahn Wilkening & Hahne Gmbh & Co | Chair |
| JPH09294646A (en) * | 1996-05-07 | 1997-11-18 | Nanba Press Kogyo Kk | Movable seat |
| JPH11221171A (en) * | 1997-12-01 | 1999-08-17 | Hiroshi Wada | Chair and chair type stool |
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| Publication number | Publication date |
|---|---|
| JP2002136385A (en) | 2002-05-14 |
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