Title:
SPOOL VALVE DEVICE
Document Type and Number:
Japanese Patent JP2019152291
Kind Code:
A
Abstract:
To provide a spool valve device capable of fixing a magnet to a spool easily and quickly without the need for an adhesive.SOLUTION: A spool valve device 1 comprises: a housing 10 with a spool hole 20; a spool 30 disposed in the spool hole 20 displaceably along an axial direction and provided with a concavity 70 in a periphery 31; a magnet 50 disposed in the concavity 70; a magnetic sensor 60 disposed in the housing 10 and configured to detect change in the magnetic field of the magnet 50 and convert the change in the magnetic field into a quantity of electricity; and a bundle member 80 made of a non-magnetic material and configured to enclose the magnet 50 and the spool 30 from a radial outside and fix the magnet to the spool.SELECTED DRAWING: Figure 1
Inventors:
SHIRAI HIROSHI
KIM JAEHYUN
NAKAMURA TOSHIAKI
KIM JAEHYUN
NAKAMURA TOSHIAKI
Application Number:
JP2018039075A
Publication Date:
September 12, 2019
Filing Date:
March 05, 2018
Export Citation:
Assignee:
NIDEC TOSOK CORP
International Classes:
F16K3/24; F16K37/00; F16K11/07; G01B7/00
Domestic Patent References:
| JPH0654125B2 | 1994-07-20 | |||
| JP2005090732A | 2005-04-07 | |||
| JP2002089742A | 2002-03-27 | |||
| JPH0266784U | 1990-05-21 | |||
| JP2002115776A | 2002-04-19 |
Attorney, Agent or Firm:
Shinji Komai
Inoue Akifumi
Naofumi Ikeda
Inoue Akifumi
Naofumi Ikeda