发明授权
- 专利标题: Elevator rope slip detector and elevator system
- 专利标题(中): 电梯滑行检测器和电梯系统
-
申请号: US10574282申请日: 2004-05-28
-
公开(公告)号: US07614482B2公开(公告)日: 2009-11-10
- 发明人: Masahiro Shikai , Akihide Shiratsuki , Tatsuo Matsuoka
- 申请人: Masahiro Shikai , Akihide Shiratsuki , Tatsuo Matsuoka
- 申请人地址: JP Tokyo
- 专利权人: Mitsubishi Denki Kabushiki Kaisha
- 当前专利权人: Mitsubishi Denki Kabushiki Kaisha
- 当前专利权人地址: JP Tokyo
- 代理机构: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- 国际申请: PCT/JP2004/007772 WO 20040528
- 国际公布: WO2005/115903 WO 20051208
- 主分类号: B66B3/00
- IPC分类号: B66B3/00 ; B66B1/34 ; G01L5/04
摘要:
In an elevator apparatus, a pulley is provided in a hoistway. A rope that moves together with the movement of a car is wound around the pulley. Further, the pulley is provided with a pulley sensor for generating a signal according to the rotation of the pulley. The car is provided with a car speed sensor for directly detecting the speed of the car. A control panel is provided with: a first speed detecting portion for obtaining the speed of the car based on information from the pulley sensor; a second car speed detecting portion for obtaining the speed of the car based on information from the car speed sensor; and a determination portion for determining the presence/absence of slippage between the rope and the pulley by comparing the speeds of the car as respectively obtained by the first and second speed detecting portions.
公开/授权文献
- US20070000736A1 Elevator rope slip detector and elevator system 公开/授权日:2007-01-04
信息查询