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1. (WO2018079412) ROTATION DETECTING DEVICE, GEAR SHIFT UNIT, AND TRANSMISSION SYSTEM

Pub. No.:    WO/2018/079412    International Application No.:    PCT/JP2017/037879
Publication Date: Fri May 04 01:59:59 CEST 2018 International Filing Date: Fri Oct 20 01:59:59 CEST 2017
IPC: G01D 5/245
F16H 61/34
Applicants: KNORR-BREMSE COMMERCIAL VEHICLE SYSTEMS JAPAN LTD.
クノールブレムゼ商用車システムジャパン株式会社
Inventors: SUZUKI, Atsushi
鈴木 篤史
Title: ROTATION DETECTING DEVICE, GEAR SHIFT UNIT, AND TRANSMISSION SYSTEM
Abstract:
[Problem] To propose a rotation detecting device, a gear shift unit, and a transmission system which can allow reduction of cost. [Solution] A rotation detecting device (322) comprises a magnetic field generating unit (M1) set at an end portion of a rotary shaft (2124), and a magnetic field detecting unit (M2) arranged near the magnetic field generating unit (M1), and is characterized in that the magnetic field generating unit (M1) includes a ferromagnetic body (M11) and a soft magnetic body (M12), and rotates with rotating operation of the rotary shaft (2124), and the magnetic field detecting unit (M2) detects a magnetic field which changes according to rotation of the magnetic field generating unit (M1).