JPH0436675Y2 - - Google Patents
Info
- Publication number
- JPH0436675Y2 JPH0436675Y2 JP1986049036U JP4903686U JPH0436675Y2 JP H0436675 Y2 JPH0436675 Y2 JP H0436675Y2 JP 1986049036 U JP1986049036 U JP 1986049036U JP 4903686 U JP4903686 U JP 4903686U JP H0436675 Y2 JPH0436675 Y2 JP H0436675Y2
- Authority
- JP
- Japan
- Prior art keywords
- leaf spring
- support arm
- mounting plate
- seat mounting
- rod
- 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
- 230000000694 effects Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Landscapes
- Chairs Characterized By Structure (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、椅子の座席を、反発力をもたせて後
傾させうる装置に関する。[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a device that can tilt the seat of a chair backward with a repulsive force.
後傾させうる座席に、板ばねを連係することに
より、反発力を付与したロツキング椅子は、実開
昭61−25848号公報に記載のものを始め、多数の
ものが公知である。
Many rocking chairs are known, including one described in Japanese Utility Model Application Publication No. 61-25848, which provides a repulsive force by linking a leaf spring to a seat that can be tilted back.
しかし、板ばねを利用した従来のロツキング椅
子においては、板ばねの反発力が、着座者に強く
感じられて不快なことがあり、またばねの反発力
を、着座者の体重や好みに応じて、広い範囲に亘
つて微調節することが困難である。
However, in conventional rocking chairs that use leaf springs, the repulsive force of the leaf springs can be felt strongly by the seated person and may be uncomfortable. , it is difficult to make fine adjustments over a wide range.
〔問題点を解決するための手段〕
本考案は、板ばねの実質的な長さを簡単に調節
しうるようにすることによつて、上述の問題点の
解決を図つたもので、その特徴とするところは、
椅子の脚杆の上端に設けた、前方を向く支持アー
ムの前端に、後方を向く座席取付板を、その左右
軸まわりに回動自在に枢着し、かつ支持アームの
前部に、支持アームと座席取付板の間において後
方を向く板ばねの前端を固着し、さらに、板ばね
と支持アームとの間に、板ばねの支持杆を、前後
移動可能に設けるとともに、板ばねの後端をもつ
て、座席取付板の下面後端を、上向きに弾圧支持
したことにある。[Means for solving the problems] The present invention aims to solve the above-mentioned problems by making it possible to easily adjust the substantial length of the leaf spring. Where,
A seat mounting plate facing rearward is pivotally attached to the front end of a support arm facing forward provided at the upper end of the leg rod of the chair so as to be rotatable about its left and right axis, and the support arm is attached to the front part of the support arm. The front end of the leaf spring facing rear is fixed between the leaf spring and the seat mounting plate, and a support rod for the leaf spring is provided between the leaf spring and the support arm so as to be movable back and forth, and the rear end of the leaf spring is The reason is that the rear end of the lower surface of the seat mounting plate is supported upwardly.
板ばねの支持杆の前後位置を変化させて、板ば
ねの実質的な長さを調節することにより、着座者
の体重や好みに応じて、反発力を簡単に調節する
ことができる。
By changing the longitudinal position of the support rod of the leaf spring and adjusting the substantial length of the leaf spring, the repulsive force can be easily adjusted according to the weight and preference of the seated person.
第１図ないし第３図は、本考案の一実施例を示
すもので、椅子の脚杆１の上端には、前向Ｕ字状
に屈曲された、支持アーム２の屈曲部が固着さ
れ、支持アーム２の前端内側には、ほぼ水平をな
して後方を向く支持板３が、またその上方には左
右方向を向く連結筒４が固着されている。
1 to 3 show an embodiment of the present invention, in which a bent part of a support arm 2 bent in a forward U-shape is fixed to the upper end of a leg rod 1 of a chair. A support plate 3 that is substantially horizontal and faces rearward is fixed to the inside of the front end of the support arm 2, and a connecting cylinder 4 that faces left and right is fixed above the support plate 3.
連結筒４へ挿通した枢軸６の支持アーム２から
突出する両端には、座席取付板５の前端が止着さ
れている。 The front end of the seat mounting plate 5 is fixed to both ends of the pivot shaft 6 that is inserted into the connecting tube 4 and protrudes from the support arm 2 .
座席取付板５の下面後端には、左右方向を向く
受圧杆７が止着されている。 A pressure receiving rod 7 facing in the left-right direction is fixed to the rear end of the lower surface of the seat mounting plate 5.
上記支持板３の前部には、後方を向く板ばね８
が、押え板９とねじ１０をもつて挾圧保持され、
板ばね８の後端は、補強杆７の下面を上向きに弾
圧している。 At the front of the support plate 3, there is a leaf spring 8 facing backward.
is held with clamping pressure by the holding plate 9 and the screw 10,
The rear end of the leaf spring 8 presses the lower surface of the reinforcing rod 7 upward.
板ばね８は、下方程短寸となる複数のばね片８
ａを、前端を揃えて重ね合せて形成されている。 The leaf spring 8 has a plurality of spring pieces 8 that become shorter toward the bottom.
a are stacked one on top of the other with their front ends aligned.
支持板３と板ばね８の間には、後方へ向かつて
開口する受溝が形成され、この受溝内には、左右
方向を向き、かつ両端が支持アーム２に設けた前
後に長い案内孔に案内される支持杆１１が、前後
移動可能に挾設されている。 A receiving groove that opens toward the rear is formed between the support plate 3 and the leaf spring 8, and within this receiving groove is a longitudinally long guide hole that faces in the left-right direction and has both ends provided in the support arm 2. A support rod 11 guided by is mounted so as to be movable back and forth.
支持杆１１の一端は、支持アーム２の外面に添
設した目盛板１２における前後方向の長孔１３を
貫通し、その端面には、指示片１４が取り付けら
れている。 One end of the support rod 11 passes through a long hole 13 in the longitudinal direction in a scale plate 12 attached to the outer surface of the support arm 2, and an indicator piece 14 is attached to the end surface thereof.
支持アーム２と座席取付板５の前端における左
右の間隙内には、それぞれ、上記枢軸６と同軸を
なす、内外１組の筒状のストツパ１５，１５が設
けられている。 A pair of inner and outer cylindrical stoppers 15, 15 are provided in the left and right gaps at the front ends of the support arm 2 and the seat mounting plate 5, respectively, and are coaxial with the pivot shaft 6.
内外のストツパ１５，１５はそれぞれ支持アー
ム２の外面、および座席取付板５の内面に固着さ
れている。 The inner and outer stoppers 15, 15 are fixed to the outer surface of the support arm 2 and the inner surface of the seat mounting plate 5, respectively.
１対のストツパ１５，１５の対向面は、180°よ
り僅かに大きな角度をもつて切欠かれ、その突出
部１５ａ，１５ａ同士が互いに嵌合し、かつ両突
出部１５ａ，１５ａの間には、軸線と平行な間隙
１６が形成されている。 The opposing surfaces of the pair of stoppers 15, 15 are cut out at an angle slightly larger than 180°, and the protrusions 15a, 15a fit into each other, and between the protrusions 15a, 15a, A gap 16 is formed parallel to the axis.
座席取付板５の下傾限度において、両突出部１
５ａ，１５ａが当接して（図示省略）、間隙１６
はなくなる。 At the downward inclination limit of the seat mounting plate 5, both protrusions 1
5a and 15a are in contact with each other (not shown), and the gap 16
will disappear.
上述の装置を備えるロツキング椅子に着席する
と、座席取付板５は、板ばね８の反発力を受けな
がら、体重に応じて、間隙１６が消滅するまで下
傾する。 When a person sits on a rocking chair equipped with the above-described device, the seat mounting plate 5 tilts downward according to the user's weight while receiving the repulsive force of the leaf spring 8 until the gap 16 disappears.
支持杆１１を前後に移動させて、支持杆１１と
受圧杆７との間の長さを変化させると、座席取付
板５、すなわち座席の受ける板ばね８の反発力は
変化する。 When the support rod 11 is moved back and forth to change the length between the support rod 11 and the pressure receiving rod 7, the repulsive force of the leaf spring 8 received by the seat mounting plate 5, that is, the seat changes.
上記目盛板１２に、たとえば支持杆１１の位置
と対応する体重を表わす目盛を表示しておけば、
着座者は、自分に適する支持杆１１の位置を一見
して知ることができる。 If, for example, a scale indicating the position of the support rod 11 and the corresponding weight is displayed on the scale plate 12,
The seated person can know at a glance the position of the support rod 11 suitable for him/her.
使用する板ばね８の反発力は、次式より算出す
ることができる。式中の符号は、第４図に示す各
部に相当する。 The repulsive force of the plate spring 8 used can be calculated from the following equation. The symbols in the formula correspond to the respective parts shown in FIG.
Ｗ＝nbh3Ｅ／４3δ
Ｗ……板ばねに作用する垂直荷重
ｎ……ばね片（板ばね単体）の総数
ｂ……板ばねの幅
ｈ……ばね片の厚さ
Ｅ……縦弾性係数
δ……板ばねのたわみ
……板ばねの全長
〔考案の効果〕
本考案の装置によると、支持杆の前後位置を調
節するという簡単な操作により、座席の下傾に対
する板ばねの反発力を微調節することができる。 W=nbh 3 E/4 3 δ W... Vertical load acting on the leaf spring n... Total number of spring pieces (a single leaf spring) b... Width of the leaf spring h... Thickness of the spring piece E... Vertical Elastic modulus δ...Deflection of the leaf spring...Full length of the leaf spring [Effect of the invention] According to the device of the invention, the rebound of the leaf spring against the downward tilt of the seat can be reduced by the simple operation of adjusting the longitudinal position of the support rod. The force can be finely adjusted.
第１図は、本考案を適用したロツキング椅子の
要部縦断側面図、第２図は、第１図のＡ−Ａ線矢
視図、第３図は、第２図のＢ−Ｂ線矢視図、第４
図は、板ばねの付勢力計算式の説明図である。
１……脚杆、２……支持アーム、３……支持
板、４……連結筒、５……座席取付板、６……枢
軸、７……受圧杆、８……板ばね、８ａ……ばね
片、９……押え板、１０……ねじ、１１……支持
杆、１２……目盛板、１３……長孔、１４……指
示片、１５……ストツパ、１５ａ……突出部、１
６……間隙。
Fig. 1 is a vertical sectional side view of the main parts of a rocking chair to which the present invention is applied, Fig. 2 is a view taken along the line AA in Fig. 1, and Fig. 3 is a view taken along the line BB in Fig. View, 4th
The figure is an explanatory diagram of a formula for calculating the biasing force of a leaf spring. 1... Leg rod, 2... Support arm, 3... Support plate, 4... Connection tube, 5... Seat mounting plate, 6... Pivot, 7... Pressure rod, 8... Leaf spring, 8a... ... Spring piece, 9 ... Holding plate, 10 ... Screw, 11 ... Support rod, 12 ... Scale plate, 13 ... Long hole, 14 ... Indicator piece, 15 ... Stopper, 15a ... Projection, 1
6... Gap.
Claims (1)
ームの前端に、後方を向く座席取付板を、その左
右軸まわりに回動自在に枢着し、かつ支持アーム
の前部に、支持アームと座席取付板の間において
後方を向く板ばねの前端を固着し、さらに、板ば
ねと支持アームとの間に、板ばねの支持杆を、前
後移動可能に設けるとともに、板ばねの後端をも
つて、座席取付板の下面後端を、上向きに弾圧支
持してなる椅子の座席のロツキング装置。 A seat mounting plate facing rearward is pivotally attached to the front end of a support arm facing forward provided at the upper end of the leg rod of the chair so as to be rotatable about its left and right axis, and the support arm is attached to the front part of the support arm. The front end of the leaf spring facing rear is fixed between the leaf spring and the seat mounting plate, and a support rod for the leaf spring is provided between the leaf spring and the support arm so as to be movable back and forth, and the rear end of the leaf spring is , a locking device for a chair seat, in which the rear end of the lower surface of a seat mounting plate is supported upwardly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986049036U JPH0436675Y2 (en) | 1986-04-03 | 1986-04-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986049036U JPH0436675Y2 (en) | 1986-04-03 | 1986-04-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62161855U JPS62161855U (en) | 1987-10-14 |
| JPH0436675Y2 true JPH0436675Y2 (en) | 1992-08-28 |
Family
ID=30871120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986049036U Expired JPH0436675Y2 (en) | 1986-04-03 | 1986-04-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0436675Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1908374B1 (en) * | 2006-10-06 | 2009-02-11 | Stoll Giroflex AG | Synchronous office chair |
| JP5191756B2 (en) * | 2008-02-08 | 2013-05-08 | タカノ株式会社 | Chair reaction force device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6125848B2 (en) * | 1981-11-09 | 1986-06-18 | Sumitomo Rubber Ind |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6125848U (en) * | 1984-07-23 | 1986-02-15 | 株式会社ホウトク | rock king chair |
-
1986
- 1986-04-03 JP JP1986049036U patent/JPH0436675Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6125848B2 (en) * | 1981-11-09 | 1986-06-18 | Sumitomo Rubber Ind |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62161855U (en) | 1987-10-14 |
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