PROBLEM TO BE SOLVED: To acquire an emergency braking device for a passenger conveyor which can perform engagement between a ratchet pawl and a tooth part more surely.SOLUTION: An emergency braking device includes: a ratchet wheel 31 which is provided coaxially with a main shaft side drive sprocket 22, which has a plurality of tooth parts 311 in the periphery, and which rotates together with the main shaft side drive sprocket 22; and a ratchet pawl 33A which displaces between an engagement position for being engaged with the tooth part 311, and a retreat position for being separated from the tooth part to the radially outside. At the ratchet pawl 33A, a recess part 331 is formed in which the tooth part 311 is inserted so as to sandwich the tooth part 311 in a thickness direction in the case where the position of the ratchet pawl 33A is in the engagement position.SELECTED DRAWING: Figure 4
【課題】ラチェットポールと歯部との間の係合をより確実に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】主軸側駆動スプロケット22と同軸に設けられ、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、歯部311と係合する係合位置と歯部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には、ラチェットポール33Aの位置が係合位置である場合に歯部311を厚さ方向について挟むように歯部311が挿入される凹部331が形成されている。【選択図】図4
EMERGENCY BRAKING DEVICE FOR PASSENGER CONVEYOR
乗客コンベヤの非常制動装置
2016-05-16
Patent
Electronic Resource
Japanese
PASSENGER CONVEYOR BRAKING DEVICE AND PASSENGER CONVEYOR
European Patent Office | 2020
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