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Patent Searching and Data


Title:
SWITCHED RELUCTANCE LINEAR MOTOR
Document Type and Number:
Japanese Patent JP2001086729
Kind Code:
A
Abstract:

To increase detection accuracy of the position of a movable member and accurately positioning the movable member with a detecting part put, in parallel with the movable member for detecting the position of the movable member.

In a movable member forming part 18 of an SR linear motor, a detecting part 26 is extended on a side of a movable member 17 in the elongating direction of the entire length of the movable member 17. The detecting part 26 to be detected has a structure, having tooth parts 26a with a give pitch. In this case, a tooth parts 26a has the same pitch as a projected part 17a of the movable member 17 and has its top cut shape, as compared with the projected part 17a. The projected part 17a has a shape which widens toward the base and easily turns into a sine wave distribution in the inductance distribution. The projected part 17a has the tooth part 26a with a given shape suited for enhancing accuracy of detection, and the tooth part 26a is manufactured at the same time as the projected part 17a.


Inventors:
MINOSHIMA NORIMOTO
HAYASHI HIROTO
ODATE TAIJI
Application Number:
JP1999000256168
Publication Date:
March 30, 2001
Filing Date:
September 09, 1999
Export Citation:
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Assignee:
TOYODA AUTOMATIC LOOM WORKS
International Classes:
G01D5/245; H02K41/03; (IPC1-7): H02K41/03; G01D5/245
Attorney, Agent or Firm:
Hironobu Onda (1 person outside)