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:
May. 18, 1999
Filed:
Aug. 21, 1997
Applicant:
Inventors:
Masayuki Hosono, Tokyo, JP;
Jiro Mandokoro, Ibaraki-ken, JP;
Assignee:
SMC Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23B / ;
U.S. Cl.
CPC ...
279115 ; 269126 ; 279-412 ; 294106 ; 901 37 ;
Abstract
A chuck device has a pair of grippers pivotally supported in a recess defined in an end of a body for angular movement about a predetermined angle, a joint member connected to a piston reciprocally movably disposed in a cylinder chamber defined in the body, and a pair of rollers engaging respectively in grooves in the grippers and angularly movably mounted on the joint member. Linear movement of the piston can be transmitted as angular movement to the grippers through the rollers while the rollers are angularly moving with respect to the joint member. A cover is mounted on the end of the body in closing relation to the recess.