MAGNETIC ENCODER DEVICE AND ROTATION DETECTION DEVICE

Title:

MAGNETIC ENCODER DEVICE AND ROTATION DETECTION DEVICE

Document Type and Number:

WIPO Patent Application WO/2015/008622

Kind Code:

A1

Abstract:

　This magnetic encoder device (3) has a base part (33) having an attachment surface (33b) for attaching a rotary shaft (2), a core (35) fitted and fixed on the base part (33), and a plurality of rows of magnetic encoder tracks (30) formed on the core (35). Magnetic poles of the magnetic encoder tracks (30) are moved in a region facing a magnetometric sensor (4), and the angle of the rotating rotary shaft is thereby detected. The base part (33) is formed of a sintered metal, and a sizing is applied in advance to the attachment surface (33b).

Inventors:

TAKAHASHI TORU (JP)
NAKAJIMA TATSUO (JP)
HAKAMATA HIROYUKI (JP)
UEMOTO IKUO (JP)
MIYAZAKI SHINJI (JP)
HARANO TAKUJI (JP)
ODA TAKAYUKI (JP)

Application Number:

PCT/JP2014/067629

Publication Date:

January 22, 2015

Filing Date:

July 02, 2014

Export Citation:

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Assignee:

NTN TOYO BEARING CO LTD (JP)
TAKAHASHI TORU (JP)
NAKAJIMA TATSUO (JP)
HAKAMATA HIROYUKI (JP)
UEMOTO IKUO (JP)
MIYAZAKI SHINJI (JP)
HARANO TAKUJI (JP)
ODA TAKAYUKI (JP)

International Classes:

G01D5/245

Foreign References:

JPH08184603A	1996-07-16
JP2005114507A	2005-04-28
JP2011027719A	2011-02-10
JP2007033455A	2007-02-08
JP2010024495A	2010-02-04
JP2010249536A	2010-11-04
JP2009080058A	2009-04-16

Other References: