Title:
PILOT-TYPE SOLENOID VALVE
Document Type and Number:
WIPO Patent Application WO/2018/211756
Kind Code:
A1
Abstract:
A movable iron core (70) of a pilot-type solenoid valve (10) has a groove-like to-be-locked part (78) formed in the outer circumference thereof. A coiled coupling spring (42) for coupling the movable iron core (70) and a main valve unit (38) has: a first winding part (44) that is bent to form a polygon shape, and is elastically deformed by the movable iron core (70) being pressed in through an opening so as to lock the to-be-locked part (78); a second winding part (46) that is located on the side opposite from the first winding part (44) and secured to the main valve unit (38); and a third winding part (48) that is located between the first winding part (44) and the second winding part (46).
Inventors:
ARAKAWA TAKASHI (JP)
Application Number:
PCT/JP2018/004770
Publication Date:
November 22, 2018
Filing Date:
February 13, 2018
Export Citation:
Assignee:
SMC CORP (JP)
International Classes:
F16K31/06; F16K7/17; F16K31/42
Foreign References:
| JP2011038603A | 2011-02-24 | |||
| JPS5965504U | 1984-05-01 | |||
| JPH0531336Y2 | 1993-08-11 | |||
| JP2011038603A | 2011-02-24 |
Other References:
See also references of EP 3627019A4
Attorney, Agent or Firm:
CHIBA Yoshihiro et al. (JP)
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