Title:
SOLENOID DEVICE AND DAMPER USING SAME
Document Type and Number:
WIPO Patent Application WO/2020/261701
Kind Code:
A1
Abstract:
The present invention addresses the problem of shortening axial length while maintaining the necessary thrust and seal properties of a solenoid device. To solve the foregoing problem, a solenoid device 71 is provided with a bobbin 109 onto which a coil 74 is wound, a fixed core 68 that forms a lower-end surface of a housing space that houses the bobbin, a movable core 69 that is disposed opposite an upper-end surface of the fixed core and moves in the axial direction, and a seal section 107 disposed on an outer peripheral surface of the fixed core, wherein: a roughly ring-shaped protruding section 68B, the inner peripheral side of which is high and the outer peripheral side of which is low, is formed on the inner peripheral side of the upper-end surface of the fixed core so as to face an outer peripheral surface of the movable core; and the seal section is disposed at an axial-direction height so as to overlap with the protruding section.
Inventors:
SETO SHINJI (JP)
TANAKA YUICHIRO (JP)
NAKAZATO NORIO (JP)
MORI SHUNSUKE (JP)
HIRAO MOTOHIRO (JP)
KATAYAMA YOHEI (JP)
TANAKA YUICHIRO (JP)
NAKAZATO NORIO (JP)
MORI SHUNSUKE (JP)
HIRAO MOTOHIRO (JP)
KATAYAMA YOHEI (JP)
Application Number:
PCT/JP2020/015455
Publication Date:
December 30, 2020
Filing Date:
April 06, 2020
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
F16K31/06; H01F7/06; H01F7/121; H01F7/16
Domestic Patent References:
| WO2018168865A1 | 2018-09-20 |
Foreign References:
| JP2002139167A | 2002-05-17 | |||
| JP2016194319A | 2016-11-17 | |||
| JP2010129679A | 2010-06-10 | |||
| JP2019102534A | 2019-06-24 | |||
| JPH11287345A | 1999-10-19 | |||
| JPH06295817A | 1994-10-21 | |||
| JP2016051708A | 2016-04-11 |
Attorney, Agent or Firm:
POLAIRE I.P.C. (JP)
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