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Title:
ELECTRIC ACTUATOR AND CONTROL DEVICE THEREOF
Document Type and Number:
WIPO Patent Application WO/2005/057051
Kind Code:
A1
Abstract:
An electric actuator (10) capable of rapidly and smoothly switching a transmission torque and allowing a device cost to be lowered and a device size to be reduced and a control device thereof, the electric actuator (10) comprising a motor (40) outputting a torque, a torque distribution means (50) receiving the rotating motion of the motor and distributedly outputting the motion to two output shafts (53, 54), a rotation constraining means (60) selectively constraining the rotating motions of the two output shafts (53, 54) of the torque distribution means (50), a motion conversion means (70) receiving the rotating motion of one of the two output shafts (53, 54) and converting the motion into a reciprocating motion, and an output shaft (80) receiving the rotating motion of the other output shaft to perform a rotating motion and receiving the reciprocating motion to perform a reciprocating motion.

Inventors:
Ajima, Toshiyuki c/o Hitachi Research Laboratory (Hitachi Ltd., 1-1, Omika-cho 7-chom, Hitachi-shi Ibaraki, 319-1292, JP)
Kuroiwa, Hiroshi c/o Automotive Systems (Hitachi Ltd., 2520, Takab, Hitachinaka-shi Ibaraki, 312-8503, JP)
Saeki, Hiroaki c/o Automotive Systems (Hitachi Ltd., 2520, Takab, Hitachinaka-shi Ibaraki, 312-8503, JP)
Miyazaki, Hideki c/o Hitachi Research Laboratory (Hitachi Ltd., 1-1, Omika-cho 7-chom, Hitachi-shi Ibaraki, 319-1292, JP)
Naganuma, Ryoichi c/o Hitachi Research Laboratory (Hitachi Ltd., 1-1, Omika-cho 7-chom, Hitachi-shi Ibaraki, 319-1292, JP)
Application Number:
PCT/JP2003/015890
Publication Date:
June 23, 2005
Filing Date:
December 11, 2003
Export Citation:
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Assignee:
HITACHI, LTD. (6-6 Marunouchi 1-chome, Chiyoda-ku, Tokyo, 100-8280, JP)
Ajima, Toshiyuki c/o Hitachi Research Laboratory (Hitachi Ltd., 1-1, Omika-cho 7-chom, Hitachi-shi Ibaraki, 319-1292, JP)
Kuroiwa, Hiroshi c/o Automotive Systems (Hitachi Ltd., 2520, Takab, Hitachinaka-shi Ibaraki, 312-8503, JP)
Saeki, Hiroaki c/o Automotive Systems (Hitachi Ltd., 2520, Takab, Hitachinaka-shi Ibaraki, 312-8503, JP)
Miyazaki, Hideki c/o Hitachi Research Laboratory (Hitachi Ltd., 1-1, Omika-cho 7-chom, Hitachi-shi Ibaraki, 319-1292, JP)
Naganuma, Ryoichi c/o Hitachi Research Laboratory (Hitachi Ltd., 1-1, Omika-cho 7-chom, Hitachi-shi Ibaraki, 319-1292, JP)
International Classes:
F16H1/36; F16H37/06; F16H37/14; F16H37/16; F16H48/10; F16H61/32; H02K7/06; H02K7/116; H02K26/00; (IPC1-7): F16H37/16; F16H1/36; F16H37/06; F16H37/14; F16H48/10; F16H61/32; H02K7/116
Foreign References:
JP2003206997A
US5127281A
Attorney, Agent or Firm:
Hiraki, Yusuke (Kamiya-cho MT Bldg. 19F, 3-20 Toranomon 4-chom, Minato-ku Tokyo, 105-0001, JP)
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