JPH0155528B2 - - Google Patents

Description

【発明の詳細な説明】 本発明は回動停止自在のロータに設けたコンタ
クトプレートを絶縁板上に配設した４個以上の固
定接点にほぼ同じ接点圧により同時接触させるよ
うにロータリースイツチに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rotary switch in which a contact plate provided on a rotor that can freely stop rotation is brought into simultaneous contact with four or more fixed contacts arranged on an insulating plate with substantially the same contact pressure.

この種スイツチにおいては、コンタクトプレー
トに４個以上の接点部を設けるときはプレートの
僅かな歪又はそり等により接触不良を起すため、
コンタクトプレートには安定のすぐれた３個の接
点部を設けて、該プレートの複数枚をロータに重
ねて組込むものが存する。しかしながら３個の接
点部を設けたコンタクトプレートの複数枚をロー
タに組込む際従来は、これらのプレートを例えば
特公昭52−36272号公報に示すように互に接触す
るようにロータに組込んでいるためプレートはチ
ヤタリングを起し、プレート間の接点汚損を生じ
易い不都合を有していた。 In this type of switch, when four or more contact points are provided on the contact plate, contact failure may occur due to slight distortion or warpage of the plate.
Some contact plates are provided with three highly stable contact portions, and a plurality of these plates are assembled into a rotor in a stacked manner. However, when a plurality of contact plates each having three contact portions are assembled into a rotor, conventionally these plates are assembled into the rotor so as to be in contact with each other, as shown in Japanese Patent Publication No. 52-36272, for example. Therefore, the plates have the disadvantage of causing chattering and contamination of the contacts between the plates.

本発明はかゝる不都合を改良するためなされた
ものであつて、三個の接点部を有するプレートの
複数枚が互に接触することなく組込むことにより
プレート間の接点汚損のないロータリースイツチ
を提供するにある。 The present invention has been made to improve this inconvenience, and provides a rotary switch in which a plurality of plates having three contact portions are assembled without contacting each other, thereby eliminating the possibility of soiling of the contacts between the plates. There is something to do.

これを図示実施例のものについて説明すると図
は車輛におけるステアリングロツク装置に組込ま
れたロータリースイツチを示すもので、該ロータ
リースイツチ１はシリンダー錠２の操作杆３に連
動して摺動するステアリングロツク片４とを有す
るステアリングロツク装置５内に組込まれ、更に
スイツチ１のケーシング６には前記操作杆３の回
動により「Lock」「Acc」「ON」「Start」の４個
の回動停止角を有するロータ７と該ロータ７の中
心の突軸７ａの廻りに回動方向に係止されるよう
に上下に層状に配置される環状の２枚のコンタク
トプレート８，９と、該コンタクトプレート８，
９のそれぞれに設けた３個の接点部８ａ，８ｂ，
８ｃ，９ａ，９ｂ，９ｃが適宜接触するように固
定接点１０の５個を埋設した絶縁板１１とが設け
られている。 To explain this with reference to the illustrated embodiment, the figure shows a rotary switch incorporated in a steering lock device in a vehicle. 4, and the casing 6 of the switch 1 has four rotation stop angles, ``Lock'', ``Acc'', ``ON'', and ``Start'', by rotation of the operating rod 3. A rotor 7 having a rotor 7, two annular contact plates 8, 9 arranged vertically in layers so as to be locked in the rotational direction around a protruding shaft 7a at the center of the rotor 7, and the contact plates 8,
9, three contact portions 8a, 8b,
An insulating plate 11 in which five fixed contacts 10 are embedded is provided so that contacts 8c, 9a, 9b, and 9c are in contact with each other as appropriate.

そして前記固定接点１０は第４〜第７図示のよ
うにイグニツシヨン回路の接点１０ａとAcc回路
の接点１０ｂと、電源回路の接点１０ｃと、スタ
ータ回路の接点１０ｄとクーラ回路の接点１０ｅ
の５個が同一周上に配設され、又前記コンタクト
プレート８，９の各接点部は第２図に示すように
二等辺三角形の各角上に位置づけて各プレートよ
り突設して設けられ、その上部プレート８の各接
点部８ａ，８ｂ，８ｃは固定接点１０と同一円周
上に設けられると共にその２個８ａ，８ｂは固定
接点１０の円周上を外れて絶縁板１１に設けた段
部１２，１２に乗り上げられるように半径方向に
長く形成され、又下部プレート９の接点部はその
１個即ち二等辺三角形の頂角上に位置する接点部
９ａが固定接点１０の円周より外れて設けられ、
更にこれら接点部８ａ，８ｂ，８ｃ，９ａ，９
ｂ，９ｃが固定接点１０に接触したとき上下のプ
レート８，９は互に隔離するように下部プレート
９の接点部は上部プレート８の接点部より突出高
さを高く形成されると共に、これらプレート８，
９を弾発するばね１３，１４は前記二等辺三角形
の底辺に平行で且つプレートの重心を通る線上で
重心より等距離に２個設けられている。なお上部
プレート８はロータ７の突軸７ａに対し軸方向に
掛止められるようにその中心部に突軸７ａを挾む
平行一対の掛止片１５，１５を設けて、これを突
軸７ａの先端外周に設けた突起１６に掛止めさせ
て、その組込みを容易にした。図中１７はロータ
７の回動復帰用ばね、１８はロータ７の回動規制
ボール、１９は上部プレート８に設けた係止用の
脚片、２０は同じく下部プレート９に設けた係止
用の脚片を示す。 As shown in the fourth to seventh figures, the fixed contacts 10 include an ignition circuit contact 10a, an Acc circuit contact 10b, a power supply circuit contact 10c, a starter circuit contact 10d, and a cooler circuit contact 10e.
The five contact plates 8 and 9 are arranged on the same circumference, and the contact portions of the contact plates 8 and 9 are positioned on each corner of an isosceles triangle and protrude from each plate, as shown in FIG. The contact portions 8a, 8b, 8c of the upper plate 8 are provided on the same circumference as the fixed contact 10, and the two contact portions 8a, 8b are provided on the insulating plate 11 outside the circumference of the fixed contact 10. The lower plate 9 is formed to be long in the radial direction so as to be able to ride on the stepped portions 12, 12, and one of the contact portions of the lower plate 9, that is, the contact portion 9a located on the apex angle of the isosceles triangle is larger than the circumference of the fixed contact 10. set apart,
Furthermore, these contact portions 8a, 8b, 8c, 9a, 9
The contact portion of the lower plate 9 is formed to have a higher protruding height than the contact portion of the upper plate 8 so that the upper and lower plates 8, 9 are separated from each other when the contacts b and 9c come into contact with the fixed contact 10. 8,
Two springs 13 and 14 for springing the isosceles triangle are provided at equal distances from the center of gravity on a line parallel to the base of the isosceles triangle and passing through the center of gravity of the plate. The upper plate 8 is provided at its center with a pair of parallel hooking pieces 15, 15 that sandwich the protruding shaft 7a so that it can be latched to the protruding shaft 7a of the rotor 7 in the axial direction. It is latched onto a protrusion 16 provided on the outer periphery of the tip to facilitate its assembly. In the figure, 17 is a rotation return spring for the rotor 7, 18 is a rotation regulating ball for the rotor 7, 19 is a locking leg piece provided on the upper plate 8, and 20 is a locking leg piece provided on the lower plate 9. The leg pieces are shown.

本発明は上述の如く構成されるものであるから
ロータ７の回動停止角によつて生ずる各接点間の
接触は第３図の接続表に示す通りとなり、これを
更に詳述すると第４図の如く「Lock」位置にお
いては上部プレート８の接点部８ａ，８ｂが段部
１２，１２に乗り上げると共に下部プレート９の
接点部９ｂ，９ｃは固定接点間に位置して無接触
状態にあり、又第５図示の如く「Acc」位置にお
いては上部プレート８の接点部８ａと下部プレー
ト９の接点部９ｃとが固定接点１０ｂに同時に接
触すると共に下部プレート９の接点部９ｂは固定
接点１０ｃに接触する２接触状態にあり、又第６
図示の如く「ON」位置においては上部プレート
８の接点部８ａは固定接点１０ｃに、同じく接点
部８ｂは固定接点１０ａに、同じく接点部８ｃ、
は固定接点１０ｅに接触すると共に下部プレート
９の接点部９ｂは固定接点１０ｃに、同じく接点
部９ｃは固定接点１０ｂに接触する４接触状態に
あり更に第７図示の如く「ST」位置においては
上部プレート８の接点部８ａは固定接点１０ｃ
に、同じく接点部８ｂは固定接点１０ａに接触す
ると共に下部プレート９の接点部９ｂは固定接点
１０ｄに同じく接点部９ｃは固定接点１０ｃに接
触する３接触状態となるものである。 Since the present invention is constructed as described above, the contact between the contacts caused by the rotation stop angle of the rotor 7 is as shown in the connection table of FIG. 3, and this will be explained in more detail as shown in FIG. In the "Lock" position, as shown in FIG. As shown in Figure 5, in the "Acc" position, the contact part 8a of the upper plate 8 and the contact part 9c of the lower plate 9 simultaneously contact the fixed contact 10b, and the contact part 9b of the lower plate 9 contacts the fixed contact 10c. 2 is in contact, and the 6th
As shown in the figure, in the "ON" position, the contact portion 8a of the upper plate 8 is connected to the fixed contact 10c, the contact portion 8b is connected to the fixed contact 10a, the contact portion 8c is connected to the fixed contact 10a, and the contact portion 8b is connected to the fixed contact 10a.
is in contact with the fixed contact 10e, the contact portion 9b of the lower plate 9 is in contact with the fixed contact 10c, and the contact portion 9c is in contact with the fixed contact 10b, and as shown in FIG. The contact portion 8a of the plate 8 is a fixed contact 10c.
Similarly, the contact portion 8b contacts the fixed contact 10a, the contact portion 9b of the lower plate 9 contacts the fixed contact 10d, and the contact portion 9c contacts the fixed contact 10c, resulting in a three-contact state.

なお下部プレート９の接点部９ａの軌跡上にも
固定接点を設けるときは５接触状態も可能とな
る。 Note that when a fixed contact is also provided on the locus of the contact portion 9a of the lower plate 9, a five-contact state is also possible.

このように本発明によるときは三角形状に配設
したコンタクトプレートの３接点部を二等辺三角
形に配設し、該二等辺三角形状の底辺の２個の接
点部に平行で且つコンタクトプレートの重心を通
る線上に配設した２個のばねを介してそれぞれの
コンタクトプレートを互に接触することなく独立
に組込んだものであるからコンタクトプレートを
周方向に位相を変えて互に接触するように組込む
ものに比し、ロータを小型化できると共にプレー
ト間の接点汚損をなくすことができるのみなら
ず、各接点部は略同じ接点圧をもつて接離できる
ため、円滑に作動し、而も各コンタクトプレート
はそれぞれの１個の接点部が同時に固定接点の１
個に接触するようにして４接触状態としたから固
定接点はプレートの接点部により揺動されてその
ワツピツグ効果によつて接点が常に浄化されて長
期に渉つて有効に作動する等の効果を有する。 In this way, according to the present invention, the three contact portions of the contact plate arranged in a triangular shape are arranged in an isosceles triangle, and the contact plate is parallel to the two contact portions on the base of the isosceles triangle and is located at the center of gravity of the contact plate. Since each contact plate is assembled independently without contacting each other via two springs arranged on a line passing through the Compared to a built-in type, the rotor can be made smaller and the contact between the plates can be eliminated from contamination. In addition, each contact can be connected and separated with approximately the same contact pressure, so it operates smoothly, and each Each contact plate has one fixed contact at the same time.
Since the fixed contacts are in a four-contact state so that they are in contact with each other, the fixed contacts are swung by the contact part of the plate, and the contact is constantly purified by the watsupitz effect, which has the effect of operating effectively over a long period of time. .

【図面の簡単な説明】[Brief explanation of drawings]

図面は本発明の一実施例を示すもので、第１図
は一部欠截側面図、第２図は第１図Ａ−Ａ線矢視
図、第３図は接続表、第４〜７図は説明図であ
る。 ７……ロータ、８……コンタクトプレート、８
ａ，８ｂ，８ｃ……接点部、９……コンタクトプ
レート、９ａ，９ｂ，９ｃ……接点部、１０……
固定接点、１３……ばね、１４……ばね。 The drawings show one embodiment of the present invention, in which Fig. 1 is a partially cutaway side view, Fig. 2 is a view taken along the line A-A in Fig. 1, Fig. 3 is a connection table, and Figs. The figure is an explanatory diagram. 7...Rotor, 8...Contact plate, 8
a, 8b, 8c...Contact part, 9...Contact plate, 9a, 9b, 9c...Contact part, 10...
Fixed contact, 13... spring, 14... spring.

Claims (1)

【特許請求の範囲】[Claims] １ 回動停止自在のロータに３接点部を三角形状
に配設したコンタクトプレートの複数枚を層状に
回転を拘束して組込み、これらコンタクトプレー
トの各接点部を基盤上の４個以上の独立した固定
接点に接触させるようにしたロータリースイツチ
において前記各コンタクトプレートの３接点部を
二等辺三角形上に配設し該二等辺三角形状の底辺
の２個の接点部に平行で且つコンタクトプレート
の重心を通る線上に配設した２個のばねを介し
て、それぞれのコンタクトプレートを互に接触す
ることなく独立に組込むと共に、前記ロータの所
要の回動停止位置で、前記各コンタクトプレート
の各１個の接点部が同時に前記固定接点の１個に
接触するようにしたことを特徴とするロータリー
スイツチ。1. A plurality of contact plates each having three contact points arranged in a triangular shape are assembled in layers in a rotor that can freely stop rotation, and rotation is restrained, and each contact point of these contact plates is connected to four or more independent points on a base plate. In a rotary switch configured to contact a fixed contact, the three contact portions of each contact plate are arranged on an isosceles triangle, and the center of gravity of the contact plate is parallel to the two contact portions on the bottom of the isosceles triangle. The respective contact plates are assembled independently without contacting each other via two springs disposed on a line passing through the rotor, and at the required rotation stop position of the rotor, each one of the contact plates is assembled independently without contacting each other. A rotary switch characterized in that a contact portion contacts one of the fixed contacts at the same time.