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:
Dec. 18, 2001
Filed:
Sep. 05, 2000
SMC Corporation, Tokyo, JP;
Abstract
An inertial force applied to a motor drive shaft when jaw members stop at opening and closing ends, grasping positions of a workpiece, and the like is absorbed and damage to motor parts such as gears due to impact is prevented. For this purpose, in an electric hand in which a pair of cam grooves,are provided to a cam member,mounted to the drive shaft,of an electric motor,drive pins,fitted into the cam grooves,are respectively provided to the pair of jaw members,for grasping the workpiece, and a reciprocating rotating motion of the drive shaft,is converted to opening/closing motions of the jaw members,by the cam member,and the drive pins,an inner cylinder member,mounted to the drive shaft,and an outer cylinder member,provided to the cam member,and fitted with the inner cylinder member,such that the outer cylinder member,can rotate with respect to the inner cylinder member,are connected through a plurality of elastic bodies,and impact that acts on the drive shaft,when the cam member,stops at swinging ends is absorbed by elastic deformation of the elastic bodies