The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 13, 2009
Filed:
Apr. 26, 2006
Yasuyoshi Suzuki, Chiryu, JP;
Hideo Inaba, Okazaki, JP;
Jouji Yamaguchi, Chiryu, JP;
Toshiki Fujiyoshi, Okazaki, JP;
Akira Tsunoda, Toyohashi, JP;
Koichi Shimizu, Toyota, JP;
Yasuyoshi Suzuki, Chiryu, JP;
Hideo Inaba, Okazaki, JP;
Jouji Yamaguchi, Chiryu, JP;
Toshiki Fujiyoshi, Okazaki, JP;
Akira Tsunoda, Toyohashi, JP;
Koichi Shimizu, Toyota, JP;
Denso Corporation, , JP;
Abstract
A feed screw mechanism including a screwed shaft which moves linearly along with the control shaft, and a rotation spindle which rotates in a circumferential direction. The feed screw mechanism converts a rotational movement of the rotation spindle into a linear movement of the screwed shaft. A protrusion protrudes outwardly from the rotation spindle. An internal thread member engages with an outer wall surface of the rotation spindle. A motor stator generating a magnetic is positioned over the rotation spindle, and is sandwiched between the protrusion and the internal thread member in an axial direction of the rotation spindle.