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Title:
MAGNETIC ENCODER
Document Type and Number:
WIPO Patent Application WO/2021/029305
Kind Code:
A1
Abstract:
This magnetic encoder (10) is provided with: a first member (48) including a first wall part that has formed therein an insertion through-hole (54) through which a rotary body (14) is passed; and a second member (52) including a second wall part (56). A permanent magnet (42) and a magnetic sensor (44) for detecting a change in the magnetic field formed by the permanent magnet (42), are disposed between the first wall part (48) and the second wall part (56). In this configuration, the first member (48) and the second member (52) are composed of a soft steel that contains at most 3.0 wt% of carbon.

Inventors:
MASUI RYUICHI (JP)
ISHIZAWA NAOHIRO (JP)
Application Number:
PCT/JP2020/030068
Publication Date:
February 18, 2021
Filing Date:
August 05, 2020
Export Citation:
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Assignee:
SMC CORP (JP)
International Classes:
G01D5/245
Domestic Patent References:
WO2017017806A12017-02-02
WO2019202643A12019-10-24
Foreign References:
JPH0229692B21990-07-02
JP2011027719A2011-02-10
JPH0555020U1993-07-23
JP2004184319A2004-07-02
JPH0686009U1994-12-13
US20110080162A12011-04-07
JP2019015536A2019-01-31
JP2015001511A2015-01-05
Other References:
See also references of EP 4012354A4
Attorney, Agent or Firm:
CHIBA Yoshihiro et al. (JP)
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