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:
Oct. 02, 2012
Filed:
Apr. 06, 2009
Tadashi Tsuchiya, Chiba, JP;
Tadashi Tsuchiya, Chiba, JP;
Seiko Instruments Inc., , JP;
Abstract
A lens driving device has a motor mounted to a plate, a lead screw connected to the motor for undergoing rotation about an axial line thereof, a nut threadingly engaged with the lead screw, and a casing mounted to the plate for housing the lead screw and the nut. The nut has a convex protruding portion protruding outwardly from an outer peripheral surface of the nut. The casing has a fitting groove linearly formed in the casing in a direction of the axial line for receiving the protruding portion in a state in which the protruding portion is fitted in the fitting groove so as to regulate rotation of the nut, and for movably guiding the protruding portion in the fitted state in the direction of the axial line to move the nut back and forth along the lead screw. At least one of the casing and the protruding portion of the nut has a tapered surface formed so as to forcibly guide the protruding portion toward the fitting groove to gradually fit the protruding portion into the fitting groove when the casing and the plate are mounted together.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile