Title:
ROTATION DETECTION DEVICE AND CABLE WITH SENSOR
Document Type and Number:
WIPO Patent Application WO/2017/222013
Kind Code:
A1
Abstract:
This rotation detection device 1 comprises: a magnetic encoder 2 as a member to be detected, the magnet encoder 2 being mounted to an inner ring 11, which serves as a rotating member, and having a plurality of magnetic poles arranged in the circumferential direction of the inner ring 11; and a sensor section 3 disposed facing the magnetic encoder 2, the sensor section 3 being mounted to a knuckle 9, which serves as a stationary member, and not rotating as the inner ring 11 rotates. The sensor section 3 has a plurality of magnetic sensors 30 having plate-shaped detection sections 300 formed by collectively covering magnetism detection elements and signal processing circuits with a resin mold 300a. The detection sections 300 are stacked in the direction in which the sensor section 3 and the magnetic encoder 2 face each other, and the magnetic sensor 30 disposed farthest from the magnetic encoder 2 has higher sensitivity than the magnetic sensor 30 disposed closest to the magnetic encoder 2.
Inventors:
ONIMOTO TAKASHI (JP)
SHIROTA TERUYOSHI (JP)
SHIROTA TERUYOSHI (JP)
Application Number:
PCT/JP2017/023030
Publication Date:
December 28, 2017
Filing Date:
June 22, 2017
Export Citation:
Assignee:
HITACHI METALS LTD (JP)
International Classes:
G01P3/487; F16C41/00; G01D5/245; F16C19/18
Domestic Patent References:
| WO2013061503A1 | 2013-05-02 | |||
| WO2007041465A1 | 2007-04-12 |
Foreign References:
| JP2009058291A | 2009-03-19 | |||
| JP2016109554A | 2016-06-20 | |||
| JP2013237428A | 2013-11-28 | |||
| JP2015536470A | 2015-12-21 | |||
| US20140046625A1 | 2014-02-13 | |||
| JP2011102769A | 2011-05-26 |
Attorney, Agent or Firm:
HIRATA & PARTNERS (JP)
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