JPH0617863A - Torsion spring for chair - Google Patents
Torsion spring for chairInfo
- Publication number
- JPH0617863A JPH0617863A JP17101392A JP17101392A JPH0617863A JP H0617863 A JPH0617863 A JP H0617863A JP 17101392 A JP17101392 A JP 17101392A JP 17101392 A JP17101392 A JP 17101392A JP H0617863 A JPH0617863 A JP H0617863A
- Authority
- JP
- Japan
- Prior art keywords
- torsion spring
- spring
- rotating means
- twisting force
- chair
- 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.)
- Withdrawn
Links
Landscapes
- Springs (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、椅子に使用するねじり
ばねに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a torsion spring used for a chair.
【０００２】[0002]
【従来の技術】従来、この種のねじりばねはトーション
バー等に使用され、図２に示すように、（ａ）中実角棒
状のもの、（ｂ）中実丸棒状のもの、（ｃ）中空丸棒状
のものが知られている。これらはそれぞれ一端を固定
し、他端で捻り力を得るものである。2. Description of the Related Art Conventionally, a torsion spring of this kind has been used for a torsion bar or the like, and as shown in FIG. 2, (a) a solid square bar, (b) a solid round bar, (c). A hollow round bar is known. These have one end fixed and the other end having a twisting force.
【０００３】[0003]
【発明が解決しようとする課題】従来のトーションバー
等のねじりばねにあっては定められた、又は限られた長
さ等の中で使用する場合、捻り力（以下、力と記す）が
大き過ぎたり、発生せん断応力（以下、応力と記す）が
大き過ぎたり、さらには、応力限界内で使用する場合に
は捻り角（以下、角度と記す）が小さかったりして、椅
子用としての仕様を十分に満足するものは得られなかっ
た。又、応力を低減させるために径や巾を小さくして、
力が弱くなった分を補うために、図２（ｄ）に示すよう
に複数本束ねたりしても、各個の両端をそれぞれ拘束す
ることが難しかった。A conventional torsion spring such as a torsion bar has a large torsional force (hereinafter referred to as force) when used within a fixed length or a limited length. The specifications for chairs are excessive, the generated shear stress (hereinafter referred to as stress) is too large, and the twist angle (hereinafter referred to as angle) is small when used within the stress limit. We couldn't get anything that satisfied Also, in order to reduce stress, the diameter and width are reduced,
In order to compensate for the weakened force, it is difficult to restrain both ends of each of the bundles, even if a plurality of bundles are bundled as shown in FIG. 2 (d).
【０００４】そこで、本発明においては、従来の一体形
のねじりばねに比して同じサイズでありながら、椅子用
として応力を低減することができ、その上角度を大きく
得られるような角形ねじりばねを、両端の拘束を容易に
して、これを用いた椅子の座り心地を良くするものであ
る。Therefore, according to the present invention, a rectangular torsion spring which has the same size as that of the conventional integral type torsion spring but can reduce stress for a chair and can obtain a large angle. Is to make it easy to restrain both ends and to make a chair using this comfortable.
【０００５】[0005]
【課題を解決するための手段】本発明は、複数の帯板状
ばねを平行に重ね合せて束ねて構成したことを特徴とす
る椅子用ねじりばねである。これを言いかえれば、角棒
を縦（長手の軸芯方向）に板状に分割したものである。
設計上必要とする力を得、かつ必要とする角度を得るた
めには、この目的に相応する帯板状ばねの数とすること
によって一体構成のばねよりも同一応力で大きな捻り角
または同一角度で応力の低減をさせることができる。DISCLOSURE OF THE INVENTION The present invention is a torsion spring for a chair, characterized in that a plurality of strip-shaped springs are stacked in parallel and bundled. In other words, the square bar is divided vertically (in the longitudinal axis direction) into a plate shape.
In order to obtain the required force and the required angle in the design, the number of strip plate springs corresponding to this purpose is set to a larger twist angle or the same angle with the same stress as that of the integrally constructed springs. Can reduce the stress.
【０００６】帯板状ばねを重ね合せて束ねた外形は角形
に限定される。その理由は端部での回転拘束を容易にす
るためと、仮に円形とする場合には構成各帯板状ばねに
同一断面を得ることができないため、応力の発生に均一
性が期待できないからである。The outer shape in which the strip-shaped springs are stacked and bundled is limited to a rectangular shape. The reason for this is that it is easy to restrain rotation at the ends, and if it is assumed to be circular, it is not possible to obtain the same cross section for each of the constituent strip springs, so it is not possible to expect uniformity in the generation of stress. is there.
【０００７】ばねの端部には、トマリバメ又はスベリバ
メの嵌合による係止具を設けることによって、必要とす
る力を調整して得るようにする。The spring is provided at its end with a locking member formed by fitting a tongue fit or a slip fit so that the required force can be adjusted and obtained.
【０００８】本発明におけるばねの応力や角度は帯板状
ばねの数に応じて変化する。１７００ｋｇｆ−ｍｍ近傍
での使用を想定して、２、４、５、７、１０に各分割し
たときの計算側を表１に示す。The stress and the angle of the spring in the present invention change according to the number of strip-shaped springs. Table 1 shows the calculation side when divided into 2, 4, 5, 7, and 10, assuming use in the vicinity of 1700 kgf-mm.
【０００９】[0009]
【表１】 [Table 1]
【００１０】表１は計算結果を示すが、実際にばねを製
作して、その応力、角度を測定すると若干の変動がみら
れる。その理由は、端部の拘束具合によって板間摩擦が
発生し、分割数が多くなればその影響が大となり、又、
板間での乾湿又は油膜状況等により、それぞれ左右され
るからである。しかし、これらの影響力は条件を極端に
違えなければ、さして問題とはならず、ほぼ計算結果に
近似する。Table 1 shows the calculation results, but when a spring is actually manufactured and its stress and angle are measured, some fluctuations can be seen. The reason is that interplate friction occurs due to the degree of restraint at the ends, and the greater the number of divisions, the greater the effect, and
This is because it depends on the dry and wet conditions between the plates or the condition of the oil film. However, these influences do not cause much problem unless the conditions are extremely different, and approximate to the calculation results.
【００１１】[0011]
【実施例】以下実施例を図面に基づいて説明する。Embodiments will be described below with reference to the drawings.
【００１２】図１は斜視図で、２は帯板状ばねで、本例
の場合は、４枚束ねて、ねじりばね１を構成している。
ねじりばね１の一端は固定具３により固定される。固定
具３は調整ねじ４によりその固定具合を調節される。そ
の嵌合の強さはトマリバメ程度の強さであることが望ま
しい。他端には回転具５を取付ける。回転具５は作動桿
でもよく、単に捻り力を受ける装置でもよい。回転具５
は捻り力方向６にその力を受ける。回転具５へのばね１
の嵌合は、スベリバメでもよい。回転具５は、ハンドル
８によって回転するねじ９で移動具７をねじりばね１の
軸方向に微小移動させ、スベリバメ嵌合で係止させてい
る回転具５をねじりばね１上で移動させてその有効長を
変化させ、ねじりばね１のばね定数を変化させ得るよう
にしてある。ばね定数を変化させる必要がなければ、回
転具５の位置は固定しておいてもよい。FIG. 1 is a perspective view, and 2 is a strip-shaped spring, and in the case of this example, four are bundled to form a torsion spring 1.
One end of the torsion spring 1 is fixed by a fixture 3. The fixing degree of the fixing tool 3 is adjusted by the adjusting screw 4. It is desirable that the strength of the fitting is about the same as that of Tomari-bare. The rotating tool 5 is attached to the other end. The rotating tool 5 may be an operating rod or a device that simply receives a twisting force. Rotating tool 5
Receives the force in the twisting force direction 6. Spring 1 for rotating tool 5
The fitting may be performed by slip fitting. In the rotating tool 5, the moving tool 7 is slightly moved in the axial direction of the torsion spring 1 by the screw 9 rotated by the handle 8, and the rotating tool 5 locked by the slip fit is moved on the torsion spring 1 to The effective length is changed so that the spring constant of the torsion spring 1 can be changed. If it is not necessary to change the spring constant, the position of the rotating tool 5 may be fixed.
【００１３】他の実施例としては、回転具をねじりばね
の中央部位に取付け、両端に固定具を取付けてもよい。As another embodiment, the rotating tool may be attached to the central portion of the torsion spring, and the fixing tools may be attached to both ends.
【００１４】[0014]
【発明の効果】本発明の椅子用のねじりばねは、従来の
ねじりばねよりも応力を低く押えながら、大きな捻り角
度を十分に得ることができる。又帯板状ばねを束ねて構
成してあるから、両端の固定方法は比較的容易であり、
かつ、一端の保持具を摺動させることによって、ばね定
数を調整することができる。As described above, the torsion spring for a chair according to the present invention can obtain a large twist angle while holding the stress lower than that of the conventional torsion spring. Also, since the strip-shaped springs are bundled, it is relatively easy to fix both ends.
Moreover, the spring constant can be adjusted by sliding the holder at one end.
【図１】本発明の実施の一例を示す斜視図である。FIG. 1 is a perspective view showing an example of an embodiment of the present invention.
【図２】（ａ）〜（ｄ）は従来のねじりばねの例を示す
斜視図である。2A to 2D are perspective views showing an example of a conventional torsion spring.
１ ねじりばね ２ 帯板状ばね ３ 固定具 ４ 調整ねじ ５ 回転具 ６ 捻り力方向 ７ 移動具 ８ ハンドル ９ ねじ 1 Torsion Spring 2 Strip Plate Spring 3 Fixing Tool 4 Adjusting Screw 5 Rotating Tool 6 Twisting Force Direction 7 Moving Tool 8 Handle 9 Screw
Claims (1)
ねて構成したことを特徴とする椅子用ねじりばね。1. A torsion spring for a chair, comprising a plurality of strip-shaped springs that are stacked in parallel and bundled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17101392A JPH0617863A (en) | 1992-06-29 | 1992-06-29 | Torsion spring for chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17101392A JPH0617863A (en) | 1992-06-29 | 1992-06-29 | Torsion spring for chair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0617863A true JPH0617863A (en) | 1994-01-25 |
Family
ID=15915483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17101392A Withdrawn JPH0617863A (en) | 1992-06-29 | 1992-06-29 | Torsion spring for chair |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0617863A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005198362A (en) * | 2003-12-26 | 2005-07-21 | Matsushita Electric Works Ltd | Oscillatory linear actuator |
| JP2006523289A (en) * | 2003-04-02 | 2006-10-12 | ダイコ ユーロペ ソシエタ ア レスポンサビリタ リミタータ コン ユニコ ソシオ | 2-arm belt tensioner |
| CN115355236A (en) * | 2022-07-06 | 2022-11-18 | 钢铁研究总院有限公司 | Large-torque torsion actuating mechanism and manufacturing method thereof |
-
1992
- 1992-06-29 JP JP17101392A patent/JPH0617863A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006523289A (en) * | 2003-04-02 | 2006-10-12 | ダイコ ユーロペ ソシエタ ア レスポンサビリタ リミタータ コン ユニコ ソシオ | 2-arm belt tensioner |
| JP4657200B2 (en) * | 2003-04-02 | 2011-03-23 | ダイコ ユーロペ ソシエタ ア レスポンサビリタ リミタータ コン ユニコ ソシオ | 2-arm belt tensioner |
| JP2005198362A (en) * | 2003-12-26 | 2005-07-21 | Matsushita Electric Works Ltd | Oscillatory linear actuator |
| US7304407B2 (en) | 2003-12-26 | 2007-12-04 | Matsushita Electric Works, Ltd. | Linear oscillating actuator |
| CN115355236A (en) * | 2022-07-06 | 2022-11-18 | 钢铁研究总院有限公司 | Large-torque torsion actuating mechanism and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19990831 |