PROBLEM TO BE SOLVED: To provide an emergency brake unit of a passenger conveyor which can reliably alleviate a collision of a ratchet wheel and a ratchet pole.SOLUTION: An emergency brake unit of a passenger conveyor comprises: a ratchet wheel 31 which has a plurality of tooth parts 311 at its periphery, and rotates together with a spindle-side drive sprocket 22; a connecting rod 32 which is arranged while extending in the same direction as an axial line of the ratchet wheel 31; and a ratchet pole 33A which is arranged at the connecting rod 32, and displaced between an engagement position engaged with the tooth parts 311 and a retreat position separating from the tooth parts 311 to the outside of a radial direction by turning with the connecting rod 32 as a center. The ratchet pole 33A includes a fixed-side pole 331 and an engagement part 335, and has a movable-side pole 332 which is arranged at the fixed-side pole 331 so that a dimension between the connecting rod 32 and the engagement part 335 is changed, and a compression spring 333A which energizes the movable-side pole 332 in a direction in which a clearance between the connecting rod 32 and the engagement part 335 is expanded.SELECTED DRAWING: Figure 5
【課題】ラチェットホイールとラチェットポールとの衝突をより確実に緩和することができる乗客コンベヤの非常制動装置を得る。【解決手段】周囲に複数の歯部311を有し、主軸側駆動スプロケット22とともに回転するラチェットホイール31と、ラチェットホイール31の軸線と同一方向に延びて設けられた連結棒32と、連結棒32に設けられ、連結棒32を中心に回動することによって、歯部311と係合する係合位置と歯部311から径方向外側に離れる退避位置との間で変位するラチェットポール33Aとを備え、ラチェットポール33Aは、固定側ポール331と、係合部335を含み、連結棒32と係合部335との間の寸法が変化するように固定側ポール331に設けられた可動側ポール332と、連結棒32と係合部335との間が広がる方向に可動側ポール332を付勢する圧縮ばね333Aとを有している。【選択図】図5
EMERGENCY BRAKE UNIT OF PASSENGER CONVEYOR
乗客コンベヤの非常制動装置
2016-06-02
Patent
Electronic Resource
Japanese
IPC: | B66B Aufzüge , ELEVATORS |