JP2784600B2 - Adjustment device for seat locking reaction force in chair - Google Patents
Adjustment device for seat locking reaction force in chairInfo
- Publication number
- JP2784600B2 JP2784600B2 JP1335719A JP33571989A JP2784600B2 JP 2784600 B2 JP2784600 B2 JP 2784600B2 JP 1335719 A JP1335719 A JP 1335719A JP 33571989 A JP33571989 A JP 33571989A JP 2784600 B2 JP2784600 B2 JP 2784600B2
- Authority
- JP
- Japan
- Prior art keywords
- reaction force
- support member
- fixed
- chair
- locking
- 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 - Lifetime
Links
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
- A47C1/03261—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
- A47C1/03266—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with adjustable elasticity
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Chairs Characterized By Structure (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は椅子の座部が後方にロッキング可能にした構
成において、後ロッキングの反力を手動で微妙に調整し
得るようになる座受ロッキング反力の調整装置に関する
ものである。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat locking reaction force in which a seat portion of a chair can be locked rearward, and a reaction force of rear locking can be finely adjusted manually. And an adjusting device.
従来の技術及び発明が解決しようとする問題点 椅子におけるロッキング構造は背凭れに関するものが
大多数であるが、近年椅子の高級志向に伴い座部もロッ
キングを可能にした製品が需要者間において歓迎されて
いる。しかし従来市場に出廻つている製品はロッキング
の反力をいずれもスプリングの強さに委ねた構造であつ
てロッキングの強弱を使用者の好みに対応して調整する
ことは不可能である。Problems to be solved by the prior art and the invention Most of the locking structures in chairs are related to backrests, but in recent years, products that allow the seat to be locked with the preference for chairs are welcomed among consumers. Have been. However, the products on the market conventionally have a structure in which the locking reaction force is left to the strength of the spring, and it is impossible to adjust the strength of the locking according to the user's preference.
本発明は前記従来の欠点を改良し、使用者が手動でロ
ッキングの反力を調整し得るようになる座受ロッキング
反力の調整装置を提供しようとするものである。SUMMARY OF THE INVENTION It is an object of the present invention to provide a seat locking reaction force adjusting device which improves the above-mentioned conventional disadvantages and allows a user to manually adjust the locking reaction force.
問題点を解決するための手段 本発明は椅子の側面に配置したレバーを前後方向に移
動せしめるだけでロッキングの反力を微妙に調整し得る
ようになる点に特長を有し、脚柱に組込まれたガスシリ
ンダー上に前上りの傾斜状態で固定された枠状の支持部
材と、該支持部材の先端部に一端を枢軸をもつて後方に
枢動可能に軸装され、しかも内部に弾装したロッキング
バネの弾力で常時上方に弾圧されている可動座受部材と
からなり、前記支持部材の中央部に上下のバネ受皿によ
つて挾持されたコイルバネを設置し、下部のバネ受皿を
前記支持部材に回動可能に横架した支軸上に固定し、上
部のバネ受皿上に固定した移動軸の両端を前記可動座受
部材の両側に穿設した若干弧状をなすガイド孔に移動可
能に係合すると共に前記移動軸上に設けたプーリーにレ
バーによつて牽引可能な２本のケーブルを夫々前後方向
から巻装するようになる構成を要旨とするものである。Means for Solving the Problems The present invention has a feature in that the reaction force of the rocking can be finely adjusted only by moving the lever arranged on the side of the chair in the front-back direction, and is incorporated in the pillar. Frame-shaped support member fixed on the gas cylinder in a forwardly inclined state, and one end of the support member is pivotally mounted rearwardly with one end having a pivot axis, and furthermore is elastically mounted inside. And a movable seat receiving member which is constantly pressed upward by the elastic force of the locking spring. A coil spring sandwiched between upper and lower spring receiving plates is installed at the center of the supporting member, and the lower spring receiving plate is supported. The movable shaft is fixed on a support shaft rotatably mounted on a member and both ends of a moving shaft fixed on an upper spring pan can be moved to slightly arcuate guide holes formed on both sides of the movable seat receiving member. A pulley that engages and is provided on the moving shaft. The gist of the invention is that two cables that can be pulled by a lever by a lever are wound from the front and rear directions, respectively.
実施例 以下本発明の詳細を図面に示す実施例について説明す
ると、１は脚柱２に組込まれたガスシリンダー、３はガ
スシリンダー１上に前上りの傾斜状態で固定された枠状
の支持部材、４は支持部材３の先端部に枢軸５をもつて
後方に枢動可能に軸装された枠状の可動座受部材であつ
て、前記枢軸５部分に巻装したロッキングバネ６の弾力
で常時上方に弾圧されている。７は前記支持部材３の中
央部に配置された２個のコイルバネであつて、このコイ
ルバネ７はバネ受皿8,9によつて狭持され、下部バネ受
皿８は支持部材３に回動可能に横架した支軸10上に固定
され、又上部バネ受皿９上に固定した移動軸11の両端は
前記可動座受部材４の両側に穿設した若干弧状をなすガ
イド孔12に移動可能に係合してある。13は前記移動軸11
上に設けたプーリーであつて、このプーリー13に前後方
向から延びる２本のケーブル14,15を巻装し、該ケーブ
ル14,15の一端はいずれも可動座受部材４に止着され、
他端は後述の操作レバーに連結されている。16は椅子の
座部に取付けられた操作機構を組込んだ皿状の枠体であ
つて、この枠体16の底壁に多数の係止歯17を列設すると
共に枠体16に横架したガイド軸18上を移動し、前記２本
のケーブルが左右に連結されている操作レバー19を配置
し、この操作レバー19は先端下向きに前記係止歯17に係
合する複数個の係合凹部20が割設されており、且つ操作
レバー19の先端は枠体16に隣設したバネ線21の弾力で常
時係止歯17方向に弾圧され、係合凹部20と係止歯17との
確実な係合が保障されている。DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 is a gas cylinder incorporated in a pillar 2, 3 is a frame-shaped support member fixed on the gas cylinder 1 in an upwardly inclined state. Reference numeral 4 denotes a frame-shaped movable seating member which is pivotally mounted rearwardly with a pivot 5 at the tip of the support member 3, and which is resilient to a rocking spring 6 wound around the pivot 5. It is constantly suppressed upward. Reference numeral 7 denotes two coil springs arranged at the center of the support member 3. The coil springs 7 are held by spring trays 8, 9, and the lower spring tray 8 is rotatable by the support member 3. Both ends of a moving shaft 11 fixed on a horizontal support shaft 10 and fixed on an upper spring tray 9 are movably engaged with guide holes 12 formed in both sides of the movable seat receiving member 4 and having a slightly arcuate shape. Have been combined. 13 is the moving axis 11
The pulley 13 is provided with two cables 14, 15 extending in the front-rear direction around the pulley 13. One end of each of the cables 14, 15 is fixed to the movable seat receiving member 4,
The other end is connected to an operation lever described later. Reference numeral 16 denotes a dish-shaped frame body incorporating an operation mechanism mounted on a seat of a chair, and a large number of locking teeth 17 are arranged on a bottom wall of the frame body 16 and the frame 16 is laid horizontally. On the guide shaft 18, and an operation lever 19 to which the two cables are connected to the left and right is arranged. A concave portion 20 is provided, and the distal end of the operating lever 19 is constantly resiliently pressed in the direction of the locking tooth 17 by the elastic force of the spring wire 21 provided adjacent to the frame 16, so that the engagement concave portion 20 and the locking tooth 17 Secure engagement is ensured.
尚、図中22は可動座受部材４と固定関係にある軸であ
つて、支持部材３の側面に穿設された遊孔23に挿通され
ている。In the figure, reference numeral 22 denotes a shaft fixed to the movable seat receiving member 4 and is inserted through a play hole 23 formed on the side surface of the support member 3.
発明の作用、効果 而して前記操作レバー19を下方に押圧すると係止歯17
と係合凹部20との係合が解除され、この状態で操作レバ
ー19を全方（図中左方向）に移動せしめると一方のケー
ブル15がプーリー13を介して移動軸11が後方に牽引さ
れ、この動作によつて移動軸11はガイド孔12の後部に移
動すると共に下部バネ受皿８は支軸10を支点として可動
してコイルバネ７全体が後方に傾斜状態となつて枢軸５
を支点とする可動座受部材４のロッキング反力が強くな
り、又操作レバー19を後方（図中右方向）に移動せしめ
るとケーブル14の牽引によつて移動軸11がガイド孔12を
前方向に移動し、コイルバネ７は垂直状態となつてロッ
キング反力が前記に比し弱くなるものである。When the operation lever 19 is pressed downward, the locking teeth 17
When the operation lever 19 is moved in the entire direction (leftward in the figure) in this state, the one shaft 15 is pulled to the rear by the moving shaft 11 via the pulley 13. By this operation, the moving shaft 11 moves to the rear part of the guide hole 12, and the lower spring tray 8 moves about the support shaft 10 so that the entire coil spring 7 is inclined rearward, so that the pivot shaft 5 is moved.
When the operating lever 19 is moved rearward (rightward in the figure), the moving shaft 11 moves the guide hole 12 forward by the pulling of the cable 14. Then, the coil spring 7 is in the vertical state, and the locking reaction force is weaker than the above.
本発明は叙上の如く、簡単な操作で座受部材のロッキ
ング反力を使用者の好みに対応して自在に、しかもガイ
ド孔の範囲内で段階的に微調整することが可能であり、
且つ反力を調整するためのコイルバネを別途付加するこ
とによつてロッキングバネの初期反力を補強し、快適な
使用感を持つ優れた椅子を提供し得る等の効果を有する
ものである。As described above, the present invention makes it possible to freely finely adjust the locking reaction force of the seat receiving member according to the user's preference with a simple operation, and in a stepwise manner within the range of the guide hole.
In addition, by adding a coil spring for adjusting the reaction force separately, the initial reaction force of the rocking spring is reinforced, and an excellent chair having a comfortable feeling of use can be provided.
図面は本発明の実施例を示すもので、第１図は要部の側
面図、第２図及び第３図は同要部の断面図、第４図は同
要部の一部を示す斜視図、第５図は操作機構部の平面
図、第６図は同斜視図である。 ３……支持部材、４……可動座受部材、５……枢軸、６
……ロッキングバネ、７……コイルバネ、11……移動
軸、12……ガイド孔、13……プーリー、14,15……ケー
ブル。BRIEF DESCRIPTION OF THE DRAWINGS The drawings show an embodiment of the present invention. FIG. 1 is a side view of a main part, FIGS. 2 and 3 are cross-sectional views of the main part, and FIG. FIG. 5 is a plan view of the operation mechanism, and FIG. 6 is a perspective view of the same. 3 ... support member, 4 ... movable seat receiving member, 5 ... pivot, 6
... rocking spring, 7 ... coil spring, 11 ... moving shaft, 12 ... guide hole, 13 ... pulley, 14, 15 ... cable.
Claims (1)
りの傾斜状態で固定された枠状の支持部材と、該支持部
材の先端部に一端を枢軸をもつて後方に枢動可能に軸装
され、しかも内部に弾装したロッキングバネの弾力で常
時上方に弾圧されている可動座受部材とからなり、前記
支持部材の中央部に上下のバネ受皿によつて挾持された
コイルバネを設置し、下部のバネ受皿を前記支持部材に
回動可能に横架した支軸上に固定し、上部のバネ受皿上
に固定した移動軸両端を前記可動座受部材の両側に穿設
した若干弧状をなすガイド孔に移動可能に係合すると共
に前記移動軸上に設けたプーリーにレバーによつて牽引
可能な２本のケーブルを夫々前後方向から巻装するよう
になることを特徴とする椅子における座受ロッキング反
力の調整装置。1. A frame-like support member fixed in an upwardly inclined state on a gas cylinder incorporated in a pillar, and one end of the support member having a pivot at one end thereof is pivotable rearward. A movable seat receiving member which is axially mounted and is constantly pressed upward by the resilience of a locking spring mounted inside, and a coil spring sandwiched between upper and lower spring receiving plates is installed at the center of the supporting member. Then, the lower spring receiving plate is fixed on a support shaft rotatably mounted on the support member, and both ends of the moving shaft fixed on the upper spring receiving hole are slightly arcuately formed on both sides of the movable seat receiving member. The chair is characterized in that two cables which are movably engaged with a guide hole and which can be pulled by a lever on a pulley provided on the moving shaft are respectively wound from front and rear directions. Adjuster for seat locking reaction force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1335719A JP2784600B2 (en) | 1989-12-25 | 1989-12-25 | Adjustment device for seat locking reaction force in chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1335719A JP2784600B2 (en) | 1989-12-25 | 1989-12-25 | Adjustment device for seat locking reaction force in chair |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03195509A JPH03195509A (en) | 1991-08-27 |
| JP2784600B2 true JP2784600B2 (en) | 1998-08-06 |
Family
ID=18291709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1335719A Expired - Lifetime JP2784600B2 (en) | 1989-12-25 | 1989-12-25 | Adjustment device for seat locking reaction force in chair |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2784600B2 (en) |
-
1989
- 1989-12-25 JP JP1335719A patent/JP2784600B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03195509A (en) | 1991-08-27 |
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