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1. 发明专利

JP2001130856A PASSENGER CONVEYOR 失效
公开(公告)号：JP2001130856A
公开(公告)日：2001-05-15
申请号：JP31548799
申请日：1999-11-05
申请人： HITACHI LTD , HITACHI ELEVATOR ENG
发明人： ABE YOSHIO , KOJIMA WAHEI , TERAMOTO RITSU , ISOTANI HITOSHI
IPC分类号： B66B23/02
摘要： PROBLEM TO BE SOLVED: To provide a passenger conveyor capable of suppressing nonuniform motion of a step chain without providing a slip joint on a driving device when a dispersed driving system is adopted. SOLUTION: An idler sprocket 40 and an idler sprocket 55 are provided on an upper part side forming the upstairs side and the lower part side forming the downstairs side, respectively. On the idler sprockets 40, 55 an endless step chain 6 to which steps 7 for passengers are fixed is wound. At an intermediate part of each idler sprocket 44, 55, one or a plurality of driving devices 2 for driving and braking the step chain 6 are arranged. The driving devices 2 are provided with driving gears 10 having involute tooth shapes and engaged to the step chain 6. The driving gears 10 are engaged to only a chain 6u on an upper side of the step chain 6, for instance. In the vicinities of just above of the driving devices 2 or the whole area, chain suppressing members 23 for suppressing vertical movement of the step chain 6 are provided.

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