PROBLEM TO BE SOLVED: To make it possible to more suitably detect a foreign matter entrapped between a sheave and a main rope of a hoist.SOLUTION: A foreign matter entrapment detection device includes: a base part 12 provided on a floor of a pit 5 below a hoistway 8; a movable part 14 which is so provided upright as to be movable with respect to the base part 12, and extends with a predetermined space from an outer peripheral surface of a sheave 7 which is provided on the pit 5 and around which a main rope 3 is wound; a roller 16 which is so provided on the movable part 14 as to capable of contacting the main rope 3 wound onto the outer peripheral surface of the sheave 7; a coil spring 18 which so gives an energization force that the roller 16 contacts the main rope 3; and a detection part 20 which is provided on the movable part 14, and detects movement of the movable part 14 pressed by the roller 16 when a foreign matter is entrapped between the sheave 7 and the main rope 3.
【課題】巻上機の綱車と主ロープに挟み込まれる異物をより適切に検出することである。【解決手段】昇降路8の下部であるピット5の床面に設けられる土台部12と、土台部12に対して移動可能に立設され、ピット5に設けられる綱車7であり主ロープ3が巻掛られる綱車7の外周面と所定の間隔を空けて延びる可動部14と、綱車7の外周面に巻掛られた主ロープ3に対して接触可能に可動部14に設けられるローラ16と、ローラ16が主ロープ3に接触するように付勢力を与えるコイルばね18と、可動部14に設けられ、綱車7と主ロープ3との間に異物が巻き込まれたときにローラ16によって押圧される可動部14の動きを検知する検知部20と、を備える。【選択図】図2
FOREIGN MATTER ENTRAPMENT DETECTION DEVICE
異物挟み検出装置
2016-01-12
Patent
Elektronische Ressource
Japanisch
IPC: | B66B Aufzüge , ELEVATORS |
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