Title:
多回転型エンコーダおよびその製造方法
Document Type and Number:
Japanese Patent JP4868753
Kind Code:
B2
Abstract:
A rotary encoder includes a rotary shaft that may be manufactured easily and efficiently includes a rotating magnet with a mounting precision in which variance may not occur readily. A rotary shaft includes a rotary shaft main unit with a rotating magnet mounting part for mounting a rotating magnet and a ring-shaped rotating magnet that is formed integrally with this rotating magnet mounting part of the rotary shaft. In a method of manufacturing the rotary shaft, a ring-shaped rotating magnet is formed integrally with the rotary shaft mounting part of the rotary shaft main unit.
Inventors:
Yoshiyuki Nakamura
Hiroshi Haga
Hiroshi Haga
Application Number:
JP2005079886A
Publication Date:
February 01, 2012
Filing Date:
March 18, 2005
Export Citation:
Assignee:
HEIDENHAIN CORPORATION
International Classes:
G01D5/245; G01D5/14; G01P3/487
Domestic Patent References:
| JP9329609A | ||||
| JP9243409A | ||||
| JP6331384A | ||||
| JP7177707A | ||||
| JP6002119U | ||||
| JP58008568B1 |
Attorney, Agent or Firm:
Koichi Segawa