Title:
ELECTRIC ACTUATOR
Document Type and Number:
Japanese Patent JP2001117641
Kind Code:
A
Abstract:
To dispense with providing sensors for detecting the stroke end of an object to be operated in an electric actuator for driving the object by a motor.
This device is provided with a direction of rotation detecting means for detecting the direction of rotation of a motor for driving an object to be operated, a current value detecting means for detecting a current value running through the motor, and a motor-inverting means for inverting the direction of rotation of the motor when the current value exceeds a current value decided beforehand for inversion.
Inventors:
NATSU HISASHI
YAMASHITA TOMIO
YAMASHITA TOMIO
Application Number:
JP29437599A
Publication Date:
April 27, 2001
Filing Date:
October 15, 1999
Export Citation:
Assignee:
KURODA PRECISION IND LTD
International Classes:
F16S5/00; F16H25/20; G05D3/10; (IPC1-7): G05D3/10; F16H25/20; F16S5/00
Attorney, Agent or Firm:
Furuya Fumio (1 person outside)