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. 05, 2011
Filed:
May. 15, 2008
Toshimitsu Shiraishi, Ashigarakami-gun, JP;
Fujio Yamasaki, Ashigarakami-gun, JP;
Yoshinori Tokumura, Ashigarakami-gun, JP;
Toshimitsu Shiraishi, Ashigarakami-gun, JP;
Fujio Yamasaki, Ashigarakami-gun, JP;
Yoshinori Tokumura, Ashigarakami-gun, JP;
Hitachi High-Technologies Corporation, Tokyo, JP;
Abstract
A disk chucking mechanism constructed with first, second and third link members forms a slider crank mechanism and the third link member is rotated by a drive of a forward/rearward actuator such as an air cylinder and chucking nails are provided which protrude perpendicularly to a longitudinal direction of the first or second link member. A rotation of the chucking nail protruded perpendicularly is stopped by engagement with a disk and a spring member is bent by further forward or rearward movement of the second link member to energize a first chucking nail in a direction for maintaining an engagement with the disk. The disk is chucked with a predetermined force by only the drive of the forward/rearward actuator.