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:
Jun. 10, 1997
Filed:
Apr. 03, 1995
Applicant:
Inventors:
Shigekazu Nagai, Ibaraki-ken, JP;
Tadasu Kawamoto, Ibaraki-ken, JP;
Masahiko Suzuki, Ibaraki-ken, JP;
Assignee:
SMC Kabushiki Kaisha, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02N / ; F16H / ; F16H / ;
U.S. Cl.
CPC ...
310 80 ; 74 8915 ; 7442 / ;
Abstract
A motor is integrally mounted on one end of a ball screw over which an engaging block is threaded, and an encoder is integrally mounted on the other end of the ball screw for detecting the rotational speed or angular displacement of the motor. The motor, the ball screw, and the encoder are combined into a unitized assembly as a drive unit. The motor and the encoder are positioned on respective steps of a frame, and detachably fastened to the frame.