US Patent 7828122 Vibration damping device for an elevator
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Patent abstract
In a vibration damping device for an elevator, an actuator for generating a vibration damping force acting on an elevator car is provided in parallel with a spring for urging a guide roller against a guide rail. The actuator is controlled by a controller. The controller determines the vibration damping force to be generated by the actuator based on information from a car frame acceleration sensor for detecting horizontal acceleration of a car frame and a car cage acceleration sensor for detecting horizontal acceleration of a car cage.
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Patent Inventor Names
Kenji Utsunomiya0
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US Patent 07828122 Vibration damping device for an elevator US Patent 7828122 Vibration damping device for an elevator
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Patent Number
078281220
Patent Number
78281220
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Patent Jurisdiction
Patent Number
078281220
Date of Patent
November 9, 2010
0Patent Application Number
119177790
Date Filed
September 9, 2005
0Official Website
Patent Primary Examiner
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US Patent 07828122 Vibration damping device for an elevator
Infobox
Is a
Patent jurisdiction
Patent number
07828122
Date of patent
November 9, 2010
Patent application number
11917779
Date Filed
September 9, 2005
Patent primary examiner
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