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:
Sep. 07, 2010
Filed:
Sep. 05, 2006
Hideyuki Tanimoto, Hitachinaka, JP;
Chikai Yoshimizu, Hitachinaka, JP;
Hiroyuki Oda, Hitachinaka, JP;
Toshihito Sakaba, Hitachinaka, JP;
Shinki Ohtsu, Hitachinaka, JP;
Takashi Ueda, Hitachinaka, JP;
Yoshihiro Nakano, Hitachinaka, JP;
Hideyuki Tanimoto, Hitachinaka, JP;
Chikai Yoshimizu, Hitachinaka, JP;
Hiroyuki Oda, Hitachinaka, JP;
Toshihito Sakaba, Hitachinaka, JP;
Shinki Ohtsu, Hitachinaka, JP;
Takashi Ueda, Hitachinaka, JP;
Yoshihiro Nakano, Hitachinaka, JP;
Hitachi Koki Co., Ltd., Tokyo, JP;
Abstract
An electric fastener driver having a compact size and simple construction. A driver segment provided with a rack is movably disposed in a housing. A flywheel is driven by a motor. A drive shaft is concentric with and integral with the flywheel. A coil spring is fixed to the drive shaft. A driven rotor is coaxial with the drive shaft and has one end portion serving as a spring seat portion positioned within the coil spring. A pinion is disposed at the driven rotor and is meshedly engaged with the rack. An urging section is disposed within the driven rotor. A ball is movably disposed in a through-hole formed in the driven rotor for urging an end portion of the coil spring by the urging section. A solenoid controls a protruding amount of the ball from the surface of the driven rotor.