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:
Feb. 01, 2011
Filed:
Jul. 29, 2009
Shuji Hayashida, Kawasaki, JP;
Nobuyuki Hayashi, Kawasaki, JP;
Shozaburo Tsuji, Kawasaki, JP;
Yasuhiro Tsujimoto, Kawasaki, JP;
Masahiko Tachikake, Kure, JP;
Yuji Fujikawa, Kure, JP;
Takashi Komori, Kure, JP;
Junji Masui, Kure, JP;
Shuji Hayashida, Kawasaki, JP;
Nobuyuki Hayashi, Kawasaki, JP;
Shozaburo Tsuji, Kawasaki, JP;
Yasuhiro Tsujimoto, Kawasaki, JP;
Masahiko Tachikake, Kure, JP;
Yuji Fujikawa, Kure, JP;
Takashi Komori, Kure, JP;
Junji Masui, Kure, JP;
Mitutoyo Corporation, Kawasaki-shi, JP;
Abstract
A digital displacement measuring instrument includes a spindle screwed into a body to be axially advanced and retracted relative to the body; and an encoder that detects a displacement of the spindle. The encoder includes a rotor and a stator. The rotor is supported by a rotor bushing. The rotor bushing includes an engaging key engageable with a key groove axially provided on the outer circumference of the spindle, and is displaceable in the axial direction of the spindle via a position adjusting screw. The stator is fixed to the body via a stator bushing in the vicinity of the spindle so as not to be displaceable in the axial direction of the spindle.