JPH01126037U - - Google Patents

Description

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

第１図および第２図はこの考案による回路遮断
器の開閉機構の一実施例を示す図で、第１図は第
２図の−線に沿う縦断面図、第２図は、要部
平面図、第３図および第４図は従来の回路遮断器
の開閉機構の一例を示す図で第３図は第４図の
―線に沿う縦断面図、第４図は要部平面図であ
る。 １ａ，１ｂ：極間隔壁、１ａ１，１ｂ１：Ｕ字
状溝、１４：可動接触子、１６Ｒ，１６Ｓ，１６
Ｔ：ホルダ、１８：クロスバー、１９ａ，１９ｂ
：鞘軸、２０：接触子装置、４２，４３：サイド
プレート、４２ａ，４３ａ：Ｕ字状溝、４７：関
節ピン、４９：関節ピン、５１：トグル機構、５
２：ラツチ受、５５：開閉ばね、５６：操作ハン
ドル、５７：ハンドルレバー、６０：開閉機構。 1 and 2 are diagrams showing an embodiment of the opening/closing mechanism of a circuit breaker according to this invention. FIG. 1 is a longitudinal sectional view taken along the line - in FIG. Figures 3 and 4 are diagrams showing an example of the opening/closing mechanism of a conventional circuit breaker. Figure 3 is a longitudinal sectional view taken along the line - in Figure 4, and Figure 4 is a plan view of the main parts. . 1a, 1b: Pole spacing wall, 1a1, 1b1: U-shaped groove, 14: Movable contact, 16R, 16S, 16
T: Holder, 18: Crossbar, 19a, 19b
: Sheath shaft, 20: Contact device, 42, 43: Side plate, 42a, 43a: U-shaped groove, 47: Joint pin, 49: Joint pin, 51: Toggle mechanism, 5
2: latch receiver, 55: opening/closing spring, 56: operating handle, 57: handle lever, 60: opening/closing mechanism.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 多極が並設された接触子装置の可動接触子組体
を連通するクロスバーの極間に被着され極間隔壁
に支承される円筒状の鞘軸と、前記極間隔壁の内
側に前記接触子装置と平行に並設され前記鞘軸を
揺動可能に案内するＵ字状溝を有するサイドプレ
ートと、該サイドプレートと前記可動接触子組体
との間に連結され起立時には閉成位置に崩壊時に
は開離位置に前記可動接触子組体を動かすトグル
機構と、該トグル機構に係合可能に前記サイドプ
レートに枢支され過電流などによる揺動で係合を
外しトグル機構を崩壊させるラツチ受けと、前記
鞘軸に揺動可能に案内され頭部に操作ハンドルが
嵌め込まれたハンドルレバーと、該ハンドルレバ
ーと前記トグル機構の関節ピンとの間に張架され
作用線が機構リンクの死点を越えると反転作用す
る開閉ばねとを備えてなることを特徴とする回路
遮断器の開閉機構。 A cylindrical sheath shaft is attached between the poles of a cross bar that communicates the movable contact assemblies of a contact device in which multiple poles are arranged in parallel and is supported by the pole spacing wall; a side plate having a U-shaped groove that is arranged parallel to the contact device and swingably guides the sheath shaft; and a side plate that is connected between the side plate and the movable contact assembly and is in a closed position when standing up. a toggle mechanism that moves the movable contact assembly to an open position when it collapses, and a toggle mechanism that is pivotally supported on the side plate so that it can be engaged with the toggle mechanism, and is disengaged by swinging due to overcurrent or the like and collapses the toggle mechanism. A latch receiver, a handle lever that is swingably guided by the sheath shaft and has an operating handle fitted into its head, and a joint pin of the toggle mechanism that is stretched between the handle lever and the joint pin of the toggle mechanism. An opening/closing mechanism for a circuit breaker, comprising an opening/closing spring that reverses its action when a point is exceeded.