| 摘要 |
PROBLEM TO BE SOLVED: To provide an elevator governor capable of detecting the speed of a car with high accuracy. SOLUTION: The elevator governor comprises a sheave 11 with a governor rope 10 wound therearound which is driven by a car 3 to be elevated/lowered in a hoistway 2, a first working body 16 which is coaxially fixed to the sheave and has a rotating face 16F formed of a dielectric material, a second working body 18 held by an elastic material with permanent magnets 19A and 19B installed facing the rotating face, a switch operation means (24) which is operated by the displacement of the second working body when the elevating/lowering speed of the car reaches the first set value and operates a switch for stopping the car, and a holding body operation means (23) which is operated by the displacement of the second working body when the elevating/lowering speed of the car reaches the second set value and operates a holding body 21 to hold the governor rope. COPYRIGHT: (C)2005,JPO&NCIPI
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