Title:
開閉弁
Document Type and Number:
Japanese Patent JP6492194
Kind Code:
B2
Abstract:
An opening and closing valve (10) has a valve body (11) and a solenoid block (12), the valve body (11) having input ports (16a, 16b), an output port (17), and a valve seat (36), the solenoid block (12) having a fixed iron core (22), a movable element (41) being provided in a valve chamber (33), the movable element (41) being pushed onto the valve seat (36) by compressed air supplied to the valve chamber (33), wherein when driving current is supplied to the coil (21), the movable element (41) is separated from the valve seat (36), a concave portion (46) is provided to an opposite end surface (31), a sheet (47) made of resin and attached to the opposite end surface (31) covers a magnetic attraction surface (32) and the concave portion (46), the movable element (41) abutting on the magnetic attraction surface (32) via a coated layer (51) forming part of the sheet (47), the sheet (47) enters the concave portion (46) so as to form an air chamber (52).
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Inventors:
Satoshi Tsuchizawa
Shuichi Hosaka
Naoki Furuhashi
Koichi Oki
Keisuke Matsumoto
Shuichi Hosaka
Naoki Furuhashi
Koichi Oki
Keisuke Matsumoto
Application Number:
JP2017549922A
Publication Date:
March 27, 2019
Filing Date:
November 11, 2015
Export Citation:
Assignee:
Koganei Co., Ltd.
International Classes:
F16K31/363; F16K27/02; F16K31/06; H01F7/16
Domestic Patent References:
| JP200046233A | ||||
| JP2009275811A |
Attorney, Agent or Firm:
Tsutsui International Patent Office