JPH0221966Y2 - - Google Patents
Info
- Publication number
- JPH0221966Y2 JPH0221966Y2 JP1985066962U JP6696285U JPH0221966Y2 JP H0221966 Y2 JPH0221966 Y2 JP H0221966Y2 JP 1985066962 U JP1985066962 U JP 1985066962U JP 6696285 U JP6696285 U JP 6696285U JP H0221966 Y2 JPH0221966 Y2 JP H0221966Y2
- Authority
- JP
- Japan
- Prior art keywords
- seat plate
- seat
- pivot
- link
- plate
- 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
Links
- 239000013013 elastic material Substances 0.000 claims description 2
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 210000002414 leg Anatomy 0.000 description 4
- 230000000284 resting effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
Classifications
-
- 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
- A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
- A47C1/03255—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest with a central column, e.g. rocking office chairs
-
- 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
- A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
- A47C1/03261—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
- A47C1/03272—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with coil springs
-
- 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
- A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
- A47C1/03294—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest slidingly movable in the base frame, e.g. by rollers
Landscapes
- Health & Medical Sciences (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Chairs Characterized By Structure (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、作業時と休息時に応じて、座板と背
板のそれぞれの傾斜角度と高さを、連動して最高
に保ちうるようにした椅子に関するものである。[Detailed description of the invention] [Industrial application field] The invention is designed to maintain the maximum inclination angle and height of the seat and back plates in conjunction with each other, depending on whether the user is working or resting. This is about a chair that has been designed.
一般に、椅子に着座して作業をする場合には、
座板と背板を僅かに前傾させるとともに、座板を
若干高めとした方が快適であるが、休息する場合
は、座板と背板を後傾させるとともに、座板を低
くした方が、十分に休息できる。
Generally, when working while seated on a chair,
It is more comfortable to tilt the seat and back board slightly forward and make the seat slightly higher, but when resting, it is better to tilt the seat and back board back and lower the seat. , you can get enough rest.
しかし従来の椅子は、休息するため座板と背板
を後傾させると、座板の前縁が上昇して、着座者
の足が床面から浮上がり、大腿部の裏側が圧迫さ
れて不快である。 However, with conventional chairs, when the seat and backboard are tilted back to rest, the front edge of the seat rises, lifting the sitter's feet off the floor and putting pressure on the back of the thighs. It's unpleasant.
そのため、作業時と休息時に合わせて、その都
度、座板の高さを調節する必要があり、甚だ面倒
である。 Therefore, it is necessary to adjust the height of the seat each time depending on whether the user is working or resting, which is extremely troublesome.
これを解決するため、既に、特公昭41−12468
号公報に、座板が下降しながら後傾する椅子が提
案されているが、このものは、機構が甚だ複雑
で、大型かつ重量が大となり、一般の事務所や作
業場等では使用し難い。 In order to solve this problem, we have already started
A chair in which the seat tilts backward while lowering is proposed in the above publication, but this chair has an extremely complicated mechanism, is large and heavy, and is difficult to use in general offices, workshops, etc.
本考案は、上部に背板を備える背杆の下部の前
向水平部を、前上方に向かつて傾斜するリンク
の、中央より前方寄りの個所に、Ｘ字形に交差さ
せて枢着して、背杆の水平部の前端と、枢着部よ
り後方の個所と、リンクの両端を、脚の上端に設
けた前後方向を向く支基の前後両端部と、座板の
下面前後両端部に、リンクと水平部のいずれか一
方を枢着し、他方を連係するとともに、座板を、
適宜の弾性材をもつて上方に付勢することによ
り、上述の問題点の解決を図つたものである。
In the present invention, the lower front horizontal part of the back rod, which has a back plate on the upper part, is pivoted in an X-shape at a point closer to the front than the center of the link that slopes forward and upward. The front end of the horizontal part of the back rod, the part behind the pivot joint, and both ends of the link are attached to both the front and rear ends of the support base provided at the upper end of the leg that faces in the front and back direction, and to the front and rear ends of the lower surface of the seat plate. One of the links and the horizontal part is pivotally connected, and the other is connected, and the seat plate is
The above-mentioned problem is solved by using a suitable elastic material to urge the device upward.
本考案の椅子は、空席時は、弾性体の付勢によ
り、座板が上限にあつて僅かに前傾し、背板はほ
ぼ垂直をなして、作業に適するようになつてい
る。
In the chair of the present invention, when the seat is empty, the seat plate is at its upper limit and tilts slightly forward due to the bias of the elastic body, and the back plate is almost vertical, making it suitable for work.
作業のため着座すると、その荷重により、リン
クと背杆の水平部が、下方に揺動して、座板が下
降しようとするが、作業時には、足にも体重がか
かり、座板にかかる下向荷重が小さいので、弾性
体の付勢により、殆ど下降しない。 When you sit down to work, the weight causes the horizontal parts of the links and backrest to swing downwards, causing the seat plate to lower; however, when you work, your legs also bear weight, and the lower part of the seat plate is lowered. Since the directional load is small, there is almost no downward movement due to the bias of the elastic body.
休息のため、足より体重を抜いて体重の大部分
を座板にかけると、リンクと背杆が揺動して、座
板全体が垂直に下降するとともに、第５枢軸が第
３・第４両枢軸の中間より前方にあるので、座板
は後部程下降量が大きく、従つて後傾しながら下
降する。 When you take your weight off your feet and put most of your weight on the seat board for a rest, the links and backrests swing, and the entire seat board descends vertically, and the 5th axis moves towards the 3rd and 4th pivots. Since it is located forward from the middle of both pivots, the seat plate descends more toward the rear, and therefore descends while tilting backwards.
同時に、支基と座板に連係された背杆も後方に
揺動して、背板が下降しながら、休息に最適の角
度に後傾する。 At the same time, the back rod connected to the support base and seat plate also swings backwards, and the back plate descends and tilts back to the optimal angle for rest.
両連係孔は、それに係合する両枢軸の前後移動
を制限して、リンクの回動を制限することによ
り、昇降する座板の上限と下限を適切に規制す
る。 The two linking holes restrict the back and forth movement of the two pivots that engage therewith, thereby restricting the rotation of the link, thereby appropriately regulating the upper and lower limits of the seat plate that can be raised and lowered.
第１図と第３図は、本考案に係わる椅子の、座
板水平時の状態を示すもので、脚１の上端には、
上面開口する偏平箱状の支基２の後部が、回動自
在に枢支されている。
1 and 3 show the chair according to the present invention when the seat is horizontal, and the upper end of the leg 1 has a
The rear part of a flat box-shaped support base 2 with an open top is rotatably supported.
支基２の両側板２ａの前部には、第１枢軸３が
固着され、同じく後部には、横長の後方連係孔４
が穿設されている。 A first pivot 3 is fixed to the front part of both side plates 2a of the support base 2, and a horizontally elongated rear connecting hole 4 is also fixed to the rear part.
is drilled.
座板５の下面には、下面開口する偏平な支持箱
６が固着され、その両側板６ａの前部には、横長
の前方連係孔７が穿設され、同じく後部には、第
２枢軸８が固着されている。 A flat support box 6 with an open bottom is fixed to the lower surface of the seat plate 5, and a horizontally long front connecting hole 7 is bored in the front of both side plates 6a, and a second pivot 8 is provided in the rear. is fixed.
９は、前上方に向かつて傾斜する板状リンク
で、その左右両側端に曲成した両側板９ａの後端
同士と前端同士には、それぞれ互いに平行をなす
第３枢軸１０と第４枢軸１１が固着され、両側板
９ａにおける両枢軸１０，１１の中間より前方寄
りの個所には、両枢軸１０，１１と平行をなす第
５枢軸１２が固着されている。 Reference numeral 9 denotes a plate-shaped link which is inclined forward and upward, and a third pivot shaft 10 and a fourth pivot shaft 11 which are parallel to each other are located at the rear ends and front ends of both side plates 9a curved at both left and right ends. A fifth pivot 12, which is parallel to both pivots 10 and 11, is fixed to a portion of both side plates 9a that is closer to the front than the middle of both pivots 10 and 11.
第３枢軸１０と第４枢軸１１の両端は、それぞ
れ後方連係孔４と前方連係孔７に係合している。 Both ends of the third pivot 10 and the fourth pivot 11 are engaged with the rear link hole 4 and the front link hole 7, respectively.
図面において逆向きＬ字形に屈曲する背杆１３
の垂直部１３ａの上部には、背板１４が装着さ
れ、水平部１３ｂの中央には、枢着片１５が立設
されている。 Back rod 13 bent in an inverted L-shape in the drawing
A back plate 14 is attached to the upper part of the vertical part 13a, and a pivot piece 15 is erected at the center of the horizontal part 13b.
背杆１３の水平部１３ｂの前端と、それより後
方の個所と、枢着片１５は、それぞれ、上記第１
枢軸３と第５枢軸１２と第２枢軸８に枢着されて
いる。 The front end of the horizontal portion 13b of the back rod 13, the portion behind it, and the pivot piece 15 are connected to the first
It is pivotally connected to the pivot 3, the fifth pivot 12, and the second pivot 8.
上述のように支基２に連係された座板５は、両
者の間に設けた圧縮ばね１６により、上方に向け
て付勢されている。 The seat plate 5 linked to the support base 2 as described above is biased upward by the compression spring 16 provided between the two.
なお１７は、後述するように、座板５が下限ま
で下降した時に、第５枢軸１２が嵌入する切欠溝
である。 Note that 17 is a notched groove into which the fifth pivot 12 is fitted when the seat plate 5 is lowered to the lower limit, as will be described later.
第２図は、上述構成の椅子の空席時を示すもの
で、座板５は、ばね１６の付勢により上限まで上
昇して若干前傾し（たとえば3゜）、第３枢軸１０
と第４枢軸１１は、それぞれ後方連係孔４の前端
と前方連係孔７の後端にに位置している。 FIG. 2 shows the chair with the above-mentioned configuration when the seat is empty, and the seat plate 5 rises to the upper limit due to the biasing force of the spring 16 and is slightly tilted forward (for example, 3 degrees), and the third pivot 10
and the fourth pivot 11 are located at the front end of the rear link hole 4 and the rear end of the front link hole 7, respectively.
この状態の椅子に、作業のため着座すると、そ
の荷重により、リンク９と背杆１３の水平部１３
ｂが、ともに下方に回動して、座板５が下降しよ
うとするが、作業時は、着座者の足にも体重がか
かり、座板５にかかる下向荷重が小さいので、ば
ね１６の付勢により、殆ど下降しない。 When you sit on the chair in this state for work, the load causes the links 9 and the horizontal part 13 of the back rod 13 to
b rotates downward, and the seat plate 5 attempts to descend. However, during work, the weight of the seated person's feet is also applied, and the downward load applied to the seat plate 5 is small, so the spring 16 Due to the bias, it hardly descends.
しかし、休息のため、足より体重を抜いて体重
の大部分を座板５にかけると、３図と第４図に示
すように、リンク９と背杆１３の水平部１３ｂが
下方に揺動して、第３枢軸１０と第４枢軸１１
が、それぞれ後方連係孔４の後端と前方連係孔７
の前端に達し、第５枢軸１２が切欠溝１７に嵌入
して座板５を支承する下限まで、座板５が垂直に
下降するとともに、第５枢軸１２が、第３・第４
両枢軸１０，１１の中間より前方にあるので、座
板５は後部ほど下降量が大きく、従つて後傾（た
とえば6゜）し、この時、座板５の前線が上昇する
ことはない。 However, when you take your weight off your feet and put most of your weight on the seat plate 5 for rest, the links 9 and the horizontal part 13b of the back rod 13 swing downward, as shown in Figures 3 and 4. Then, the third axis 10 and the fourth axis 11
are the rear end of the rear connecting hole 4 and the front connecting hole 7, respectively.
The seat plate 5 vertically descends to the lower limit where the fifth pivot shaft 12 fits into the notch groove 17 and supports the seat plate 5, and the fifth pivot shaft 12
Since it is located forward of the middle between the two pivots 10 and 11, the seat plate 5 descends more toward the rear, and therefore tilts backward (for example, 6 degrees), and at this time, the front line of the seat plate 5 does not rise.
同時に、支基２と座板５に連係された背杆１３
は、後方に揺動して、座板５より大きく後傾しな
がら下降して、休息に最適の角度に後傾する。 At the same time, the back rod 13 connected to the support base 2 and the seat plate 5
The seat 5 swings rearward, descends while tilting back more than the seat plate 5, and tilts back to the optimal angle for rest.
なお、上述においては、座板５を上方へ付勢す
る手段として、座板５と支基２の間に圧縮ばね１
６を設けたが、圧縮ばね１６に代えて、ガススプ
リングを使用してもよい。 In the above description, the compression spring 1 is provided between the seat plate 5 and the support base 2 as a means for urging the seat plate 5 upward.
6 is provided, however, a gas spring may be used instead of the compression spring 16.
第１枢軸３と第３枢軸１０の間、もしくは第２
枢軸８と第４枢軸１１の間に引張りばねを設けて
もよい。背杆１３の水平部１３ｂの前端と支基２
の間に、捩りばねを設けてもよい。 between the first axis 3 and the third axis 10 or between the second axis
A tension spring may be provided between the pivot 8 and the fourth pivot 11. The front end of the horizontal part 13b of the back rod 13 and the support base 2
A torsion spring may be provided between them.
また、図示を省略したが、公知のロツク手段を
設けて、座板と背板を、任意の高さと傾斜角度に
係止することができる。 Further, although not shown, a known locking means can be provided to lock the seat plate and back plate at any desired height and angle of inclination.
支基２と座板５は、支基２の後端および支持箱
６の前端とリンク９の両端を、小寸のリンクを介
して連係してもよい。 The support base 2 and the seat plate 5 may be connected to each other through small links between the rear end of the support base 2, the front end of the support box 6, and both ends of the link 9.
さらに、図示を省略したが、支基２の後端と支
持箱６の前端に、リンク９の両端を枢着して、支
基２の前端と支持箱６の後端に、背杆１３の水平
部１３ｂを、前後移動自在に連係してもよく、本
考案は、支基２と支持箱６とリンク９と背杆１３
の水平部１３ｂの前部の、いずれかのリンク機構
上の実効長が、座板５の昇降により、変化するよ
うに、各部材を連係すればよい。 Furthermore, although not shown, both ends of the link 9 are pivotally connected to the rear end of the support base 2 and the front end of the support box 6, and the back rod 13 is attached to the front end of the support base 2 and the rear end of the support box 6. The horizontal portion 13b may be linked so as to be movable back and forth.
Each member may be linked so that the effective length of the front portion of the horizontal portion 13b on any link mechanism changes as the seat plate 5 moves up and down.
本考案の椅子は、上述のように、座板と背板の
高さと傾斜角度を、作業時と休息時に応じて、連
動して自動的に最適に保つことができ、しかも構
成が簡単であるため、故障する恐れがなく、軽量
かつ安価に製作しうるので、一般の事務所や作業
場等で使用して、甚だ効果がある。
As mentioned above, the chair of the present invention can automatically maintain the optimal height and inclination angle of the seat and backboard depending on the time of work and rest, and is simple in construction. Therefore, there is no risk of failure, and it can be manufactured lightweight and inexpensively, so it can be used in general offices, workshops, etc., and is extremely effective.
第１図は、本考案に係わる椅子の、座板水平時
における要部側面図、第２図は、同じく、作業時
における側面図、第３図は、同じく、座板水平時
における側面図、第４図は、同じく、休息時にお
ける側面図である。
１……脚、２……支基、２ａ……側板、３……
第１枢軸、４……後方連係孔、５……座板、６…
…支持箱、６ａ……側板、７……前方連係孔、８
……第２枢軸、９……リンク、９ａ……側板、１
０……第３枢軸、１１……第４枢軸、１２……第
５枢軸、１３……背杆、１３ａ……垂直部、１３
ｂ……水平部、１４……背板、１５……枢着片、
１６……圧縮ばね、１７……切込溝。
FIG. 1 is a side view of the main parts of the chair according to the present invention when the seat is horizontal, FIG. 2 is a side view when the chair is in operation, and FIG. 3 is a side view when the seat is horizontal. FIG. 4 is a side view of the vehicle at rest. 1...Leg, 2...Support, 2a...Side plate, 3...
1st pivot, 4... Rear connection hole, 5... Seat plate, 6...
...Support box, 6a...Side plate, 7...Front connection hole, 8
...Second axis, 9...Link, 9a...Side plate, 1
0...Third axis, 11...Fourth axis, 12...Fifth axis, 13...Back rod, 13a...Vertical part, 13
b... Horizontal part, 14... Back plate, 15... Pivot piece,
16... Compression spring, 17... Cut groove.
Claims (1)
を、前上方に向かつて傾斜するリンクの、中央よ
り前方寄りの個所に、Ｘ字形に交差させて枢着し
て、背杆の水平部の前端と、枢着部より後方の個
所と、リンクの両端を、脚の上端に設けた前後方
向を向く支基の前後両端部と、座板の下面前後両
端部に、リンクと水平部のいずれか一方を枢着
し、他方を連係するとともに、座板を適宜の弾性
材をもつて上方に付勢してなる椅子。 The front horizontal part of the lower part of the back rod, which has a backrest at the top, is pivoted in an X-shape at a point closer to the front than the center of the link that slopes forward and upward, so that the horizontal part of the back rod is The front end of the front end of the seat plate, the rear part of the pivot part, the both ends of the link, the front and rear ends of the support base provided at the upper end of the leg that faces in the front and back direction, and the front and rear ends of the lower surface of the seat plate. A chair in which one side is pivotally connected, the other side is connected, and the seat plate is biased upward with a suitable elastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985066962U JPH0221966Y2 (en) | 1985-05-08 | 1985-05-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985066962U JPH0221966Y2 (en) | 1985-05-08 | 1985-05-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61184453U JPS61184453U (en) | 1986-11-17 |
| JPH0221966Y2 true JPH0221966Y2 (en) | 1990-06-13 |
Family
ID=30600344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985066962U Expired JPH0221966Y2 (en) | 1985-05-08 | 1985-05-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0221966Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2779139B2 (en) * | 1995-01-30 | 1998-07-23 | コクヨ株式会社 | Chair |
-
1985
- 1985-05-08 JP JP1985066962U patent/JPH0221966Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61184453U (en) | 1986-11-17 |
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