Retiring cam device for elevator



【課題】 軽量で安価に提供することが可能なエレベータ用リタイヤリングカム装置を得る。 【解決手段】 エレベータ昇降路内を昇降するかごに設けられ、乗場側の解錠コロに係合することによって乗場の戸を解錠するカムと、このカムに連動し、弾性体により一側に付勢された吸着鉄片と、内部にベアリング支持された永久磁石を有し、この永久磁石の磁極の向きによって弾性体の付勢力に抗して吸着鉄片を吸引する磁力発生装置と、永久磁石の磁極の向きを切換える切換装置とを備える。 【選択図】 図1
PROBLEM TO BE SOLVED: To provide an inexpensive retiring cam device for an elevator being light in weight. SOLUTION: This retiring cam device for the elevator has a cam provided in a car elevating and lowering in an elevator shaft and unlocking a door at a landing place by engaging with an unlocking roller on a landing place side, an attraction iron piece interlocking with the cam and energized on one side by an elastic body, and a permanent magnet supported by a bearing in the inside. This device is provided with a magnetic force generator for attracting the attraction iron piece against energizing force of the elastic body depending on direction of magnetic pole of the permanent magnet and a switching device for switching direction of the magnetic pole of the permanent magnet. COPYRIGHT: (C)2006,JPO&NCIPI




Download Full PDF Version (Non-Commercial Use)

Patent Citations (0)

    Publication numberPublication dateAssigneeTitle

NO-Patent Citations (0)


Cited By (3)

    Publication numberPublication dateAssigneeTitle
    CN-101549826-BAugust 10, 2011日立电梯(中国)有限公司Elevator door opening protecting apparatus
    CN-103350943-AOctober 16, 2013杨贵庭Simple lifter guillotine device
    CN-104444734-AMarch 25, 2015日立电梯(中国)有限公司电梯轿门锁装置及电梯