JP3493798B2 - Combination device for plate-shaped parts and compression coil springs - Google Patents
Combination device for plate-shaped parts and compression coil springsInfo
- Publication number
- JP3493798B2 JP3493798B2 JP08161395A JP8161395A JP3493798B2 JP 3493798 B2 JP3493798 B2 JP 3493798B2 JP 08161395 A JP08161395 A JP 08161395A JP 8161395 A JP8161395 A JP 8161395A JP 3493798 B2 JP3493798 B2 JP 3493798B2
- Authority
- JP
- Japan
- Prior art keywords
- plate
- compression coil
- coil spring
- shaped component
- component
- 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
Links
Landscapes
- Springs (AREA)
Description
【発明の詳細な説明】
【0001】
【産業上の利用分野】この発明は、一般の産業製品のば
ね付勢機構部に用いられる圧縮コイルばねと板状部品の
結合装置に関する。
【0002】
【従来の技術】図9は板状部品と圧縮コイルばねの従来
の組立構造を模式化して示す断面図である。図におい
て、端部に座巻部1Aを有する圧縮コイルばね1は、そ
の一方端が他の部品3の凹所3Aに挿入された状態で支
持される。また、板状部品2には圧縮コイルばね1の内
径より小さい径の例えば半球状の突起4が設けられ、圧
縮コイルばね1の他方の端部を突起4をその外側から包
囲するよう装着することにより、圧縮コイルばね1は半
球状の突起4により板状部品2の表面に沿った方向の動
きが拘束される。
【0003】このように構成された板状部品と圧縮コイ
ルばねの従来の組立構造では、圧縮コイルばね1に圧縮
荷重が加わった状態で初めて圧縮コイルばね1の両端に
拘束力が発生する構造である。従って、その組立に際し
て圧縮コイルばね1をある程度圧縮した状態に保持して
部品2,3間の隙間に挿入する必要がある。ところが、
工具で掴んだ圧縮コイルばねがそのばね弾性によって工
具から外れて思わぬ方向に飛び去るなどの作業性の低下
を招くとともに、極く小型の圧縮コイルばねでは、工具
で掴むこと自体困難を伴うばかりか、掴むことによって
圧縮コイルばねが変形してしまい、そのばね特性が低下
するという問題が発生する。そこで、圧縮コイルばねを
直接掴まずに効率よく組立作業を行える板状部品と圧縮
コイルばねの結合装置が幾つか提案されている。
【0004】図10は板状部品と圧縮コイルばねの従来
の結合装置を示し、(a)は平面図、(b)は側断面図
である。図において、圧縮コイルばね1はその可動側端
部の径が縮小された小径部1Bを備え、板状部品2のリ
ベット孔に挿入したリベット6に小径部1Bを嵌め込
み、リベット6のかしめ加工時にリベット6を介して小
径部1Bを板状部品2にかしめ付けるよう構成されてお
り、板状部品2を可動スイッチ板,リベット6をリベッ
ト接点,とするカムスイッチ用結合装置が実開昭56−
97833号公報により提案されている。
【0005】図11は異なる従来の板状部品と圧縮コイ
ルばねの結合装置を示す断面図である。図において、板
状部品2につば出し加工によって環状突起7を形成し、
この環状突起7に圧縮コイルばね1の座巻部1Aを圧入
し、板状部品2と圧縮コイルばね1の結合装置を構成し
ている。図12は更に異なる従来の板状部品と圧縮コイ
ルばねの結合装置を示し、(a)は平面図、(b)は側
断面図である。図において、板状部品2を複数の舌状部
2Cを残して破線で示す打ち抜きエリア2Bで打ち抜き
加工した後、複数の舌状部2Cを曲げ起こし、この曲げ
起こした複数の舌状部2Cを包囲する形で圧縮コイルば
ね1の座巻部1Aを挿入し、舌状部2Cを外側に曲げて
座巻部1Aを拘束することにより、板状部品2と圧縮コ
イルばね1の結合装置を構成している。
【0006】図13は従来の他の板状部品と圧縮コイル
ばねの結合装置を示す断面図である。図において、板状
部品2を貫通するねじ9を結合部材として圧縮コイルば
ね1の端部数ターンをねじ9のねじ山に沿ってねじ込む
ことにより、板状部品2と圧縮コイルばね1の結合装置
を構成している。
【0007】
【発明が解決しようとする課題】図10から図13に示
す従来例では、結合装置によって圧縮コイルばね1を板
状部品2に結合して一体化した部品として供給できるた
め、この部品を一般的な産業製品の狭いばね付勢機構部
に装着する際、板状部品を摘んで装着できる。このた
め、図9に示す従来の組立方法で問題になった作業性の
低下を回避できるとともに、圧縮コイルばねを掴むこと
による圧縮コイルばねの変形を回避し、ばね特性の低下
を回避できる利点が得られる。
【0008】また、図10に示す従来例では、リベット
接点6を結合部材に兼用して可動スイッチ板2と圧縮コ
イルばね1の結合装置を構成しているので、カムスイッ
チの部品点数を削減できる利点が得られる。しかしなが
ら、リベット接点6のかしめ加工部に圧縮コイルばねの
小径部1Bが介在するために、かしめ加工に制約が生ず
る可能性があり、これが原因で可動スイッチ板とリベッ
ト接点との導電接触性能が不安定化する可能性が懸念さ
れる。また、圧縮コイルばねの端部が可動スイッチ板に
固定されているため、圧縮コイルばねのばね特性に悪影
響が現れることが懸念される。さらに、図11から図1
3に示す従来例でも、圧縮コイルばね1の端部が板状部
品2に固定されているため、圧縮コイルばねのばね特性
に悪影響が現れることが懸念される。
【0009】この発明の目的は、圧縮コイルばねの座巻
部を固定することなく板状部品に結合でき、従ってばね
特性への悪影響が少ない結合装置を提供することにあ
る。
【0010】
【課題を解決するための手段】上述の課題を解決するた
めに、請求項1記載の発明は、板状部品が固定接点を支
持する開閉装置のケース内に設けられて可動接触子を一
方の面側に支持し、かつ端部に座巻部を有する圧縮コイ
ルばねにより固定接点に向けてばね付勢される可動子支
え板であり、この可動子支え板の一部分を他方の面側に
ほぼ垂直に曲げ起こしてなる結合板部と、この結合板部
の先端にその中央部で凸になるよう形成された傾斜部
と、この傾斜部の両端にその延長部分として前記圧縮コ
イルばね側に凸に形成されたフック部と、このフック部
と前記可動子支え板の表面との間にコ字状に形成されて
前記座巻部をその内径側から緩く支える座巻部収納溝と
を備える。
【0011】
【0012】
【0013】
【作用】請求項1の発明では、板状部品を固定接点を支
持する開閉装置のケース内に設けられて可動接触子を一
方の面側に支持する可動子支え板としたので、座巻部収
納溝に座巻部をその内径側から緩く支えられた圧縮コイ
ルばねにより可動接触子が固定接点に向けて均等にばね
付勢されることになり、良好な導電接触状態が得られる
とともに、可動子支え板を工具で摘んでこれと一体化さ
れた圧縮コイルばねおよび可動接触子とともに開閉装置
のケースと固定接点との間に挿入することができ、開閉
装置の組立作業を省力化し、かつ圧縮コイルばねを変形
させずに組み込み作業を行える。
【0014】
【0015】
【0016】
【0017】
【実施例】以下この発明を実施例に基づいて説明する。
なお、従来例と同じ参照符号を付けた部材は従来例のそ
れと同じ機能をもつので、その説明を省略する。図1は
この発明の板状部品と圧縮コイルばねの結合装置の一実
施例を示し、(a)は平面図、(b)は(a)のX−X
位置における断面図である。図において、板状部品2は
その一部分を一方の面側にほぼ垂直に曲げ起こしてなる
一対の結合板部12を備える。この一対の結合板部12
の先端部分はその中央部で凸になるよう不等辺三角形状
に形成された傾斜部15を備える。また、この傾斜部1
5の両端にはその延長部分としての一対のフック部13
を備える。さらに、このフック部13と板状部品2の表
面との間にはコ字状の凹溝として形成された座巻部収納
溝14を備える。
【0018】一方、図では1ターンの座巻部1Aのみを
示す圧縮コイルばね1は、その座巻部1Aが結合板部1
2の傾斜部15側からフック部13を乗り越えて座巻部
収納溝14に落とし込まれる。このとき、一対の結合板
部12の合計4個のフック部13それぞれの先端13A
を結ぶ包絡円の直径が座巻部1Aの平均直径より大きい
円を描くようフック部13の突出寸法が決められること
により、一旦コ字状の座巻部収納溝14に落とし込まれ
た座巻部1Aは再び抜け落ちることがなく、圧縮コイル
ばね1の抜け止めが行われる。したがって、圧縮コイル
ばねを一般の産業製品のばね付勢機構部に組み込む際、
板状部品2を工具で摘んで組み込み作業を行うことが可
能になり、圧縮コイルばね1の掴み損ないによる作業効
率の低下や、ばねの変形によるばね特性の低下を排除で
きる利点が得られる。
【0019】また、4個の座巻部収納溝14の底部の縁
14Aを結ぶ外接円(包絡円)の直径を座巻部1Aの内
径より僅かに小さくするとともに、座巻部収納溝14の
開口幅hを座巻部1Aの高さdより僅かに大きくするこ
とにより、座巻部収納溝14に落とし込まれた座巻部1
Aは結合板部12との間に僅かな隙間を保持して回動可
能に緩やかに位置決めされることになり、座巻部1Aが
板状部品2に拘束または固定されることによって圧縮コ
イルばね1に生ずるばね特性の変化を回避し、例えば板
状部品2を安定してばね付勢できる利点が得られる。
【0020】なお、この実施例では、傾斜部15を左右
一対の傾斜角θa ,θb が異なる不等辺3角形状に形成
して傾斜角の大きいθa 側の傾斜面の長さを長くした。
そこで、座巻部1Aを座巻部収納溝14に落とし込む
際、先ず傾斜角が小さくフック部13を乗り越え難いθ
b 側を先に座巻部収納溝14に引っかけ、次いで傾斜角
が大きいθa 側で座巻部1Aを傾斜面を滑らせてフック
部13を乗り越えさせることにより、座巻部1Aに加え
る力を最小限に抑えて座巻部収納溝14に座巻部1Aを
落とし込むことができる。
【0021】図2はこの発明の板状部品と圧縮コイルば
ねの結合装置の異なる実施例を示す断面図である。この
実施例が図1に示す実施例と異なるところは、圧縮コイ
ルばね1の座巻部1Aが複数ターンの密巻部で構成さ
れ、これに伴って座巻部収納溝14の開口高さhが座巻
部1Aの高さ2dより幾分高く形成された点にある。し
たがって、この実施例も図1に示す実施例と同様に、座
巻部1Aが板状部品2に拘束または固定されることによ
って圧縮コイルばね1に生ずるばね特性の変化を回避
し、例えば板状部品2を安定してばね付勢できる利点が
得られる。
【0022】図3はこの発明の板状部品と圧縮コイルば
ねの結合装置の更に異なる実施例を示す要部の側面図、
図4はこの発明の板状部品と圧縮コイルばねの結合装置
の更に異なる実施例を示す要部の側面図である。これら
の実施例が図1に示す実施例と異なるところは、傾斜部
15Aの形状を図3に示す実施例では二等辺三角形状
に、図4に示す実施例では傾斜部15Bを円弧状にした
点にある。
【0023】図3に示す実施例の場合、二等辺三角形の
高さLを大きくすると傾斜角θが大きくなり、垂直方向
の押し込み荷重を座巻部1Aを外側に広げる力に変える
ことができるので、少ない押し込み荷重で座巻部1Aを
座巻部収納溝14に容易に落とし込むことができる。ま
た、図4に示す実施例の場合、円弧状の傾斜部15Bが
座巻部1Aに接触するフック部近くで傾斜角が大きくな
るので、これを利用して少ない押し込み荷重で座巻部1
Aを座巻部収納溝14に容易に落とし込むことができ
る。
【0024】図5はこの発明の板状部品と圧縮コイルば
ねの結合装置の製造方法の説明図であり、(a)は打ち
抜き加工終了後の状態を示す平面図、(b)は曲げ起こ
し加工終了後の状態を示す平面図である。打ち抜き加工
は図(a)のように、傾斜部15,フック部13を有す
る一対の結合板部分22と、一対の受座部26を板状部
品2側に残し、座巻部収納溝14となる切り欠き溝24
を含む打抜孔29が形成される。曲げ起こし加工は図
(b)のように、結合板部分22を板状部品2の一方の
面側に略直角に曲げ起こすことにより、互いに平行な一
対の結合板部12が形成されるとともに、座巻部1Aを
4か所で受ける受座部26,27が形成される。この方
法によれば、打ち抜き加工および曲げ起こし加工の2工
程で結合装置を容易に形成できる利点が得られるととも
に、座巻部1Aを4か所の受座部で受けてばね特性を安
定に保持できる利点が得られる。
【0025】図6から図8はこの発明の板状部品と圧縮
コイルばねの結合装置の他の実施例を示し、図6はこの
発明の板状部品と圧縮コイルばねの結合装置を備えた開
閉装置を簡略化して示す要部の断面図、図7は図6にお
ける結合装置を備えた板状部品の平面図、図8は図7の
Y−Y位置における断面図である。図において、開閉装
置31はその絶縁ケース35に支持された例えば1対の
固定接点33を備え、この一対の固定接点33に導電接
触する可動接触子36が可動スイッチ板34の両端に例
えばかしめ結合される。可動スイッチ板34は板状部品
としての可動子支え板32の一方の面に固定されてお
り、可動子支え板32は可動スイッチ板34とは反対側
の面に突設された結合装置としての結合板部12を可動
接触子36に対抗する2か所にそれぞれ一対備える。一
対の圧縮コイルばね1は一方端が結合板部12を介して
2か所で可動子支え板32に結合され、他方端が絶縁ケ
ース35の2か所の凹所35A内に係合することによ
り、可動子支え板32,可動スイッチ板34を介して可
動接触子36が一対の固定接点33に向けて一定の圧力
でばね付勢される。
【0026】この実施例では、座巻部収納溝14に座巻
部1Aをその内径側から緩く支えられた一対の圧縮コイ
ルばね1により可動接触子36が固定接点33に向けて
均等にばね付勢されることになり、可動接触子と固定接
点との間で良好な導電接触状態が得られるとともに、可
動子支え板32を工具で摘んでこれと一体化された圧縮
コイルばね1および可動接触子36を、開閉装置31の
絶縁ケース32と固定接点33との間に挿入する操作を
容易かつ圧縮コイルばねを変形させずに行えるので、開
閉装置の組立コストを低減できる利点が得られる。ま
た、図10に示す従来のカムスイッチに比べ、可動接触
子36と可動スイッチ板34とのかしめ加工による導電
結合を完全に行える利点も得られる。
【0027】
【発明の効果】この発明の板状部品と圧縮コイルばねの
結合装置を、例えば開閉装置の可動子支え板と圧縮コイ
ルばねの結合部に適用することにより、ばね特性が安定
化するので、固定接点と可動接触子との導電接触状態を
良好かつ安定に保持できる利点が得られる。
【0028】また、圧縮コイルばねの端部を固定または
拘束することによって従来生じたばね特性の低下を回避
し、優れたばね特性を安定して保持できる板状部品と圧
縮コイルばねの結合装置を提供することができる。さら
に、打ち抜き加工と曲げ起こし加工の2工程で結合装置
を製造でき、かつ他の部品を必要とせず、また、その結
合操作も結合板部先端に傾斜部を設けたことにより容易
化されるので、製造コストが低く経済的に有利な板状部
品と圧縮コイルばねの結合装置を提供することができ
る。
【0029】Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for connecting a compression coil spring and a plate-like component used in a spring biasing mechanism of a general industrial product. FIG. 9 is a sectional view schematically showing a conventional assembly structure of a plate-shaped part and a compression coil spring. In the figure, a compression coil spring 1 having an end winding portion 1A at an end is supported with one end inserted into a recess 3A of another component 3. Further, the plate-shaped component 2 is provided with, for example, a hemispherical projection 4 having a diameter smaller than the inner diameter of the compression coil spring 1, and the other end of the compression coil spring 1 is mounted so as to surround the projection 4 from the outside. Accordingly, the movement of the compression coil spring 1 in the direction along the surface of the plate-like component 2 is restricted by the hemispherical projection 4. In the conventional assembly structure of the plate-shaped component and the compression coil spring configured as described above, a constraint force is generated at both ends of the compression coil spring 1 only when a compression load is applied to the compression coil spring 1. is there. Therefore, it is necessary to insert the compression coil spring 1 into the gap between the components 2 and 3 while holding the compression coil spring 1 in a compressed state to some extent. However,
The elasticity of the compression coil spring gripped by the tool causes the workability to drop, such as detaching from the tool and jumping in an unexpected direction.In addition, the extremely small compression coil spring is not only difficult to grip with the tool itself. Otherwise, the compression coil spring is deformed by the gripping, and a problem occurs that the spring characteristic is deteriorated. In view of this, there have been proposed some coupling devices of a plate-shaped component and a compression coil spring which can perform an assembling operation efficiently without directly grasping the compression coil spring. FIGS. 10A and 10B show a conventional coupling device of a plate-shaped component and a compression coil spring, wherein FIG. 10A is a plan view and FIG. 10B is a side sectional view. In the figure, a compression coil spring 1 has a small-diameter portion 1B in which the diameter of the movable end is reduced, and the small-diameter portion 1B is fitted into a rivet 6 inserted into a rivet hole of the plate-shaped component 2, and when the rivet 6 is crimped. The small-diameter portion 1B is configured to be caulked to the plate-shaped component 2 via the rivet 6, and a coupling device for a cam switch using the plate-shaped component 2 as a movable switch plate and the rivet 6 as a rivet contact is disclosed in Japanese Utility Model Application Publication No.
No. 97833 proposes this. FIG. 11 is a cross-sectional view showing a different conventional coupling device between a plate-shaped component and a compression coil spring. In the figure, an annular projection 7 is formed on a plate-shaped component 2 by a bossing process,
The end turn portion 1A of the compression coil spring 1 is press-fitted into the annular projection 7 to constitute a coupling device between the plate-shaped component 2 and the compression coil spring 1. FIGS. 12A and 12B show still another conventional coupling device of a plate-shaped component and a compression coil spring, wherein FIG. 12A is a plan view and FIG. 12B is a side sectional view. In the drawing, after the plate-shaped component 2 is punched in a punching area 2B indicated by a broken line while leaving a plurality of tongues 2C, the plurality of tongues 2C are bent and raised, and the bent tongues 2C are removed. The coupling device of the plate-shaped component 2 and the compression coil spring 1 is constituted by inserting the end winding portion 1A of the compression coil spring 1 so as to surround it and bending the tongue-shaped portion 2C outward to restrain the end winding portion 1A. are doing. FIG. 13 is a cross-sectional view showing another conventional coupling device for connecting a plate-shaped component and a compression coil spring. In the figure, a screw 9 passing through the plate-shaped part 2 is used as a connecting member, and several turns of the end portion of the compression coil spring 1 are screwed along the thread of the screw 9, whereby a connecting device for the plate-shaped part 2 and the compression coil spring 1 is formed. Make up. In the prior art shown in FIGS. 10 to 13, since the compression coil spring 1 can be connected to the plate-like component 2 by a coupling device and supplied as an integrated component, this component is used. When mounting on a narrow spring biasing mechanism of a general industrial product, a plate-like component can be pinched and mounted. For this reason, it is possible to avoid a decrease in workability, which is a problem in the conventional assembling method shown in FIG. 9, and to avoid deformation of the compression coil spring due to gripping of the compression coil spring, thereby avoiding a decrease in spring characteristics. can get. Further, in the conventional example shown in FIG. 10, since the rivet contact 6 is also used as a connecting member to constitute a connecting device of the movable switch plate 2 and the compression coil spring 1, the number of parts of the cam switch can be reduced. Benefits are obtained. However, since the small-diameter portion 1B of the compression coil spring is interposed in the caulked portion of the rivet contact 6, there is a possibility that caulking is restricted, and as a result, the conductive contact performance between the movable switch plate and the rivet contact is impaired. There is a possibility of stabilization. Further, since the end of the compression coil spring is fixed to the movable switch plate, there is a concern that the spring characteristics of the compression coil spring will be adversely affected. Further, FIG. 11 to FIG.
Also in the conventional example shown in FIG. 3, since the end of the compression coil spring 1 is fixed to the plate-shaped component 2, there is a concern that the spring characteristics of the compression coil spring may be adversely affected. SUMMARY OF THE INVENTION It is an object of the present invention to provide a coupling device which can be coupled to a plate-like component without fixing an end turn portion of a compression coil spring, and therefore has little adverse effect on spring characteristics. [0010] In order to solve the above-mentioned problems, according to the first aspect of the present invention, a plate-like component is provided in a case of a switchgear supporting a fixed contact, and a movable contact is provided. Is supported on one surface side, and is spring-biased toward a fixed contact by a compression coil spring having an end winding portion at an end portion. A part of the movable member support plate is A connecting plate portion bent substantially vertically to the side, an inclined portion formed at the front end of the connecting plate portion so as to be convex at the center thereof, and the compression coil spring as an extension at both ends of the inclined portion. A hook portion formed to be convex on the side, and an end winding portion storage groove formed in a U-shape between the hook portion and the surface of the mover support plate to loosely support the end winding portion from its inner diameter side. Is provided. According to the first aspect of the present invention, the movable element is provided in the case of the switching device that supports the fixed contact with the plate-shaped component and supports the movable contact on one surface side. Since the supporting plate is used, the movable contact is evenly biased toward the fixed contact by the compression coil spring which loosely supports the end winding portion in the end winding portion storage groove from the inner diameter side thereof. A conductive contact state can be obtained, and the movable element support plate can be picked up with a tool and inserted between the case of the switchgear and the fixed contact together with the compression coil spring and the movable contact integrated with the mover support plate. The assembly work can be labor-saving, and the assembling work can be performed without deforming the compression coil spring. Hereinafter, the present invention will be described based on embodiments.
Members having the same reference numerals as those of the conventional example have the same functions as those of the conventional example, and the description thereof will be omitted. FIGS. 1A and 1B show an embodiment of a connecting device for a plate-shaped component and a compression coil spring according to the present invention, wherein FIG. 1A is a plan view, and FIG.
It is sectional drawing in a position. In the figure, a plate-like component 2 is provided with a pair of coupling plate portions 12 formed by bending a part of the plate-like component almost vertically to one surface side. This pair of coupling plate portions 12
Has an inclined portion 15 formed in a trapezoidal triangular shape so as to be convex at the center thereof. Also, this inclined portion 1
5 has a pair of hooks 13 as extensions thereof.
Is provided. Further, between the hook portion 13 and the surface of the plate-shaped component 2 is provided an end winding portion storage groove 14 formed as a U-shaped concave groove. On the other hand, in the compression coil spring 1 showing only the end turn 1A of one turn in FIG.
The second slant portion 15 gets over the hook portion 13 and drops into the end winding portion storage groove 14. At this time, the tip 13A of each of the four hook portions 13 of the pair of coupling plate portions 12 is provided.
The protrusion size of the hook portion 13 is determined so that the diameter of the envelope circle connecting the hooks 13 is larger than the average diameter of the end turn portion 1A, so that the end turn once dropped into the U-shaped end turn storage groove 14 is formed. The portion 1A does not fall off again, and the compression coil spring 1 is prevented from falling off. Therefore, when incorporating the compression coil spring into the spring biasing mechanism of general industrial products,
The plate-like component 2 can be picked up by a tool to perform an assembling operation, and an advantage can be obtained that a reduction in working efficiency due to a failure to grasp the compression coil spring 1 and a reduction in spring characteristics due to deformation of the spring can be eliminated. The diameter of a circumscribed circle (envelope circle) connecting the bottom edges 14A of the four end winding section storage grooves 14 is made slightly smaller than the inner diameter of the end winding section 1A. By making the opening width h slightly larger than the height d of the end turn portion 1A, the end turn portion 1 dropped into the end turn portion storage groove 14 is formed.
A is loosely positioned so as to be rotatable while maintaining a small gap between the coupling coil portion 12 and the compression coil spring 1A when the end winding portion 1A is restrained or fixed to the plate-shaped component 2. 1 can be avoided, and for example, the plate-like component 2 can be stably biased by spring. In this embodiment, the inclined portion 15 is formed in a triangular shape having a pair of right and left inclination angles θ a and θ b different from each other to increase the length of the inclined surface on the θ a side where the inclination angle is large. did.
Therefore, when dropping the end winding portion 1A into the end winding portion storage groove 14, first, the inclination angle is small and it is difficult to get over the hook portion 13.
The force applied to the end winding portion 1A by first hooking the b side into the end winding portion accommodating groove 14 and then sliding the end winding portion 1A on the inclined surface and over the hook portion 13 on the θa side having a large inclination angle. Can be minimized and the end winding portion 1A can be dropped into the end winding portion storage groove 14. FIG. 2 is a sectional view showing a different embodiment of the connecting device of the present invention for connecting a plate-shaped part and a compression coil spring. This embodiment is different from the embodiment shown in FIG. 1 in that the end turn portion 1A of the compression coil spring 1 is constituted by a densely wound portion having a plurality of turns, and the opening height h of the end turn portion storage groove 14 is accordingly increased. Is formed somewhat higher than the height 2d of the end winding portion 1A. Therefore, in this embodiment, similarly to the embodiment shown in FIG. 1, a change in the spring characteristics of the compression coil spring 1 caused by the end winding portion 1A being restrained or fixed to the plate-shaped component 2 is avoided. The advantage that the component 2 can be spring-biased stably is obtained. FIG. 3 is a side view of a main part showing a further embodiment of a connecting device for a plate-shaped component and a compression coil spring according to the present invention.
FIG. 4 is a side view of a main part showing still another embodiment of the connecting device for a plate-shaped component and a compression coil spring according to the present invention. The difference between these embodiments from the embodiment shown in FIG. 1 is that the shape of the inclined portion 15A is an isosceles triangle in the embodiment shown in FIG. 3, and the inclined portion 15B is an arc in the embodiment shown in FIG. On the point. In the case of the embodiment shown in FIG. 3, when the height L of the isosceles triangle is increased, the inclination angle θ is increased, and the vertical pushing load can be changed to a force for expanding the end winding portion 1A outward. Further, the end winding portion 1A can be easily dropped into the end winding portion storage groove 14 with a small pushing load. Further, in the case of the embodiment shown in FIG. 4, since the inclined angle of the arc-shaped inclined portion 15B becomes large near the hook portion which comes into contact with the end turn portion 1A, this is used to reduce the end turn portion 1 with a small pushing load.
A can be easily dropped into the end winding portion storage groove 14. FIGS. 5A and 5B are explanatory views of a method of manufacturing the apparatus for coupling a plate-shaped component and a compression coil spring according to the present invention, wherein FIG. 5A is a plan view showing a state after punching is completed, and FIG. It is a top view which shows the state after completion | finish. In the punching process, as shown in FIG. 3A, the pair of coupling plate portions 22 having the inclined portions 15 and the hook portions 13 and the pair of receiving portions 26 are left on the plate-shaped component 2 side, and the end winding portion storage groove 14 is formed. Notch groove 24
Is formed. In the bending process, as shown in FIG. 2B, a pair of parallel connecting plate portions 12 is formed by bending the connecting plate portion 22 to one surface side of the plate-shaped component 2 at a substantially right angle. Receiving portions 26 and 27 for receiving end winding portion 1A at four locations are formed. According to this method, it is possible to obtain an advantage that the coupling device can be easily formed in two steps of the punching process and the bending and bending process, and the spring characteristics are stably maintained by receiving the end winding portion 1A at the four receiving portions. The possible benefits are obtained. FIGS. 6 to 8 show another embodiment of the connecting device for the plate-shaped component and the compression coil spring according to the present invention. FIG. 6 shows the opening and closing provided with the connecting device for the plate-shaped component and the compression coil spring of the present invention. FIG. 7 is a cross-sectional view of a main part showing the device in a simplified manner, FIG. 7 is a plan view of a plate-like component provided with the coupling device in FIG. 6, and FIG. In the figure, a switchgear 31 has, for example, a pair of fixed contacts 33 supported by an insulating case 35 thereof. A movable contact 36 which is in conductive contact with the pair of fixed contacts 33 is, for example, caulked to both ends of a movable switch plate 34. Is done. The movable switch plate 34 is fixed to one surface of a mover support plate 32 as a plate-like component, and the mover support plate 32 serves as a coupling device protruding from a surface opposite to the movable switch plate 34. A pair of coupling plate portions 12 are provided at two locations opposing the movable contact 36. One end of the pair of compression coil springs 1 is coupled to the mover support plate 32 at two places via the coupling plate portion 12, and the other end is engaged in two recesses 35 </ b> A of the insulating case 35. Accordingly, the movable contact 36 is spring-biased at a constant pressure toward the pair of fixed contacts 33 via the movable member support plate 32 and the movable switch plate 34. In this embodiment, the movable contact 36 is uniformly spring-loaded toward the fixed contact 33 by a pair of compression coil springs 1 in which the end winding portion 1A is loosely supported by the end winding portion accommodating groove 14 from its inner diameter side. As a result, a good conductive contact state is obtained between the movable contact and the fixed contact, and the movable coil support plate 32 is pinched by a tool and the compression coil spring 1 and the movable contact Since the operation of inserting the child 36 between the insulating case 32 and the fixed contact 33 of the switching device 31 can be performed easily and without deforming the compression coil spring, an advantage that the assembly cost of the switching device can be reduced can be obtained. Further, as compared with the conventional cam switch shown in FIG. 10, there is obtained an advantage that the conductive coupling by the swaging of the movable contact 36 and the movable switch plate 34 can be completely performed. By applying the connecting device of the present invention for connecting the plate-shaped component and the compression coil spring to, for example, the connecting portion between the mover support plate of the switching device and the compression coil spring, the spring characteristics are stabilized. Therefore, there is obtained an advantage that the conductive contact state between the fixed contact and the movable contact can be favorably and stably maintained. Further, there is provided a coupling device of a plate-shaped component and a compression coil spring which can stably maintain excellent spring characteristics while avoiding a decrease in spring characteristics conventionally caused by fixing or restraining an end of the compression coil spring. be able to. Furthermore, since the joining device can be manufactured in two steps of punching and bending, no other parts are required, and the joining operation is facilitated by providing the inclined portion at the tip of the joining plate. In addition, it is possible to provide an economically advantageous connecting device between a plate-shaped component and a compression coil spring, which has a low manufacturing cost. [0029]
【図面の簡単な説明】
【図1】この発明の板状部品と圧縮コイルばねの結合装
置の一実施例を示し、(a)は平面図、(b)は(a)
のX−X位置における断面図
【図2】この発明の板状部品と圧縮コイルばねの結合装
置の異なる実施例を示す断面図
【図3】この発明の板状部品と圧縮コイルばねの結合装
置の更に異なる実施例を示す要部の側面図
【図4】この発明の板状部品と圧縮コイルばねの結合装
置の更に異なる実施例を示す要部の側面図
【図5】この発明の板状部品と圧縮コイルばねの結合装
置の製造方法の説明図であり、(a)は打ち抜き加工終
了後の状態を示す平面図、(b)は曲げ起こし加工終了
後の状態を示す平面図
【図6】この発明の板状部品と圧縮コイルばねの結合装
置を備えた開閉装置を簡略化して示す要部の断面図
【図7】図6における結合装置を備えた板状部品の平面
図
【図8】図7のY−Y位置における断面図
【図9】板状部品と圧縮コイルばねの従来の組立構造を
模式化して示す断面図
【図10】板状部品と圧縮コイルばねの従来の結合装置
を示し、(a)は平面図、(b)は側断面図
【図11】異なる従来の板状部品と圧縮コイルばねの結
合装置を示す断面図
【図12】更に異なる従来の板状部品と圧縮コイルばね
の結合装置を示し、(a)は平面図、(b)は側断面図
【図13】従来の他の板状部品と圧縮コイルばねの結合
装置を示す断面図
【符号の説明】
1 圧縮コイルばね
1A 座巻部
2 板状部品
12 結合板部
13 フック部
13A フック部の先端
14 座巻部収納溝
14A 座巻部収納溝の底
15 傾斜部(屈折面)
15A 傾斜部(屈折面)
15B 傾斜部(円弧状)
26 受け座部
27 受け座部
31 開閉装置
32 可動子支え板(板状部品)
33 固定接点
34 可動スイッチ板
35 絶縁ケース
36 可動接触子BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of a connecting device for a plate-shaped component and a compression coil spring according to the present invention, wherein (a) is a plan view and (b) is (a).
FIG. 2 is a cross-sectional view taken along the line XX of FIG. 2. FIG. 2 is a cross-sectional view showing a different embodiment of the coupling device between the plate-shaped component and the compression coil spring according to the present invention. FIG. 4 is a side view of an essential part showing still another embodiment of the present invention. FIG. 4 is a side view of an essential part showing still another embodiment of a coupling device for a plate-shaped part and a compression coil spring according to the present invention. It is explanatory drawing of the manufacturing method of the coupling device of a component and a compression coil spring, (a) is a top view which shows the state after punching completion | finish, (b) is a top view which shows the state after completion | finish of bending and bending processing [FIG. FIG. 7 is a simplified cross-sectional view of a main part of a switchgear provided with a connecting device for a plate-shaped component and a compression coil spring according to the present invention. FIG. 7 is a plan view of the plate-shaped component provided with a connecting device in FIG. FIG. 9 is a sectional view taken along the line YY in FIG. 7; FIG. 10 is a cross-sectional view schematically showing the conventional assembly structure of FIG. 10. FIG. 10 shows a conventional coupling device of a plate-shaped component and a compression coil spring, (a) is a plan view, (b) is a side cross-sectional view (FIG. 11) FIG. 12 is a cross-sectional view showing a conventional plate-shaped component and a compression coil spring coupling device. FIG. 12 shows another conventional plate-shaped component and a compression coil spring coupling device, where (a) is a plan view and (b) is a side cross-section. FIG. 13 is a cross-sectional view showing another conventional coupling device for a plate-shaped component and a compression coil spring. [Description of References] 1 Compression coil spring 1A End winding portion 2 Plate-shaped component 12 Coupling plate portion 13 Hook portion 13A Hook portion The end 14 of the end winding portion storage groove 14A The bottom of the end winding portion storage groove 15 Inclined portion (refraction surface) 15A Inclined portion (reflection surface) 15B Inclined portion (arc shape) 26 Receiving seat portion 27 Receiving seat portion 31 Opening / closing device 32 Movable Child support plate (plate-like part) 33 Fixed contact 34 Movable switch 35 insulating case 36 movable contact
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平7−296680(JP,A) 実開 平1−131039(JP,U) 実開 昭57−59229(JP,U) 実開 昭62−28605(JP,U) 実開 平6−87343(JP,U) 実開 平6−71928(JP,U) 実開 平3−32331(JP,U) 実公 昭41−5990(JP,Y1) (58)調査した分野(Int.Cl.7,DB名) F16F 1/12 ──────────────────────────────────────────────────続 き Continued from the front page (56) References JP-A-7-296680 (JP, A) JP-A 1-1131039 (JP, U) JP-A 57-59229 (JP, U) JP-A 62- 28605 (JP, U) JP-A-6-87343 (JP, U) JP-A 6-71928 (JP, U) JP-A 3-32331 (JP, U) Jiko 41-5990 (JP, Y1) (58) Field surveyed (Int. Cl. 7 , DB name) F16F 1/12
Claims (1)
のケース内に設けられて可動接触子を一方の面側に支持
し、かつ端部に座巻部を有する圧縮コイルばねにより固
定接点に向けてばね付勢される可動子支え板であり、こ
の可動子支え板の一部分を他方の面側にほぼ垂直に曲げ
起こしてなる結合板部と、この結合板部の先端にその中
央部で凸になるよう形成された傾斜部と、この傾斜部の
両端にその延長部分として前記圧縮コイルばね側に凸に
形成されたフック部と、このフック部と前記可動子支え
板の表面との間にコ字状に形成されて前記座巻部をその
内径側から緩く支える座巻部収納溝とを備えたことを特
徴とする板状部品と圧縮コイルばねの結合装置。(57) [Claims 1] A plate-like component is provided in a case of an opening / closing device that supports a fixed contact, supports a movable contact on one surface side, and has an end winding at an end. A movable plate supporting plate that is spring-biased toward a fixed contact by a compression coil spring having a portion; a coupling plate portion formed by bending a portion of the movable member support plate substantially perpendicularly to the other surface side; An inclined portion formed at the end of the coupling plate portion so as to be convex at the center thereof; and a hook portion formed at both ends of the inclined portion as an extension thereof toward the compression coil spring side, A plate-shaped component and a compression coil spring, comprising: a U-shaped portion formed between the movable member support plate and a surface of the U-shaped portion; Binding device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP08161395A JP3493798B2 (en) | 1995-04-07 | 1995-04-07 | Combination device for plate-shaped parts and compression coil springs |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP08161395A JP3493798B2 (en) | 1995-04-07 | 1995-04-07 | Combination device for plate-shaped parts and compression coil springs |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH08277867A JPH08277867A (en) | 1996-10-22 |
JP3493798B2 true JP3493798B2 (en) | 2004-02-03 |
Family
ID=13751178
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP08161395A Expired - Fee Related JP3493798B2 (en) | 1995-04-07 | 1995-04-07 | Combination device for plate-shaped parts and compression coil springs |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3493798B2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5875632B2 (en) | 2014-05-30 | 2016-03-02 | キヤノン株式会社 | Spring fixing member and ink jet recording head |
WO2017204098A1 (en) * | 2016-05-25 | 2017-11-30 | 株式会社パイオラックス | Spring assembly and manufacturing method thereof |
JP6991708B2 (en) | 2016-12-13 | 2022-01-12 | キヤノン株式会社 | Spring support device, power transmission device and image forming device |
-
1995
- 1995-04-07 JP JP08161395A patent/JP3493798B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH08277867A (en) | 1996-10-22 |
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