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Patent Searching and Data


Title:
ELECTRIC ACTUATOR
Document Type and Number:
WIPO Patent Application WO/1998/029674
Kind Code:
A1
Abstract:
An electric actuator comprising an actuator body (12), a drive unit (16), a feed screw shaft (32) for transmission of a driving torque of a rotary drive source (14), a displacement member (40) fitted on the feed screw shaft (32) to surround the same and adapted to displace axially under a threading action of a male screw portion (36) and a female screw portion (42), sensor mount grooves (24a, 24b) provided on a side of the actuator body (12), and a sensor (25) mounted at a predetermined location in the sensor mount grooves (24a, 24b).

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Inventors:
Nagai, Shigekazu (SMC Kabushiki Kaisha, Tsukuba Gijutsu Center 2-2, Kinunodai 4-chome, Yawara-mur, Tsukuba-gun Ibaraki-ken 300-24, JP)
Sakurai, Shuuzou (SMC Kabushiki Kaisha, Tsukuba Gijutsu Center 2-2, Kinunodai 4-chome, Yawara-mur, Tsukuba-gun Ibaraki-ken 300-24, JP)
Application Number:
PCT/JP1997/004795
Publication Date:
July 09, 1998
Filing Date:
December 24, 1997
Export Citation:
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Assignee:
SMC KABUSHIKI KAISHA (16-4, Shimbashi 1-chome Minato-ku, Tokyo 105, JP)
Nagai, Shigekazu (SMC Kabushiki Kaisha, Tsukuba Gijutsu Center 2-2, Kinunodai 4-chome, Yawara-mur, Tsukuba-gun Ibaraki-ken 300-24, JP)
Sakurai, Shuuzou (SMC Kabushiki Kaisha, Tsukuba Gijutsu Center 2-2, Kinunodai 4-chome, Yawara-mur, Tsukuba-gun Ibaraki-ken 300-24, JP)
International Classes:
B25J9/02; F16D55/28; F16D59/02; F16D65/14; F16H25/20; F16H25/24; H02K7/06; (IPC1-7): F16H25/20; F16H25/24; F16D55/28
Foreign References:
JPS4526519Y11970-10-15
JPS58101041U1983-07-09
JPH0323306U1991-03-11
JPS4821746B11973-06-30
JPS5628845Y21981-07-09
Other References:
See also references of EP 0947734A1
None
Attorney, Agent or Firm:
Chiba, Yoshihiro (Shinjuku Maynds Tower 16F, 1-1 Yoyogi 2-chom, Shibuya-ku Tokyo 151, JP)
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