Guide for elevator
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorsKenji Utsunomiya, Kenichi Okamoto, Takashi Yumura
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Abstract
A guide device for an elevator in which a pair of corresponding actuators are controlled by controllers in accordance with information from acceleration sensors, and the force with which guide members are pressed against guide rails is adjusted. Each controller includes a current amplification device and diodes. The diodes selectively output signals from the current amplification device to the pair of actuators.
Claims6
A guide device for an elevator engaged with a pair of guide rails, each guide rail having first and second guide surfaces for guiding a car in a car depth direction and a third guide surface for guiding the car in a car width direction, for guiding traveling of the car, said guide device comprising:
- a plurality of guide members mounted on the car and abutting the first, second, and third guide surfaces;
- a plurality of urging means located between the car and said guide members and pressing said guide members against the guide rails;
- a plurality of actuators mounted in the car and adjusting a force with which said guide members are pressed against the guide rails;
- a plurality of acceleration sensors mounted on the car and detecting accelerations in the car depth direction and the car width direction of the car;
- and
- a plurality of controllers for respectively controlling pairs of said actuators, reversing the force applied to said guide members in accordance with information from said acceleration sensors, wherein each controller includes:
- a signal processing circuit for receiving detection signals from one of said acceleration sensors and performing computation processing for restraining any acceleration generated in the car;
- a current amplification device for amplifying and adjusting signals from said signal processing circuit;
- and
- a plurality of diodes respectively coupled between said current amplification devices and respective pairs of said actuators and selectively outputting signals from said current amplification device to said respective pair of said actuators.
Dependencies are inferred from the claim text.