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:
Apr. 29, 2003
Filed:
Oct. 23, 2001
Ikuichiro Nawa, Atsugi, JP;
Mitsumi Electric Co., Ltd., Tokyo, JP;
Abstract
A backlash eliminating mechanism is used in a head sending mechanism for sending head assembly mounted on a head lift up and down along a relation axis of a lead screw. The backlash eliminating mechanism comprises a pressing means for always pressing the head lift along the rotation axis of the lead screw. The pressing means comprises a preload bushing located in a middle space of the head lift and has a internal thread engaging an external thread of the lead screw extending through the middle space. A compressed coil spring is located between the head lift and the preload bushing in the middle space of the head lift and presses the head lift against the preload bushing along the rotation axis of the lead screw.