Title:
ガスボンベ用空気作動常閉弁のロック機構
Document Type and Number:
Japanese Patent JP4133272
Kind Code:
B2
Abstract:
A locking device of an air-operated normally-closed valve for a gas cylinder (10) includes a housing (21); a piston assembly (30) provided in the housing (21); a tapered axial member (32) having an annular outer tapered surface and positioned coaxially with the piston assembly axis; a lock nut (25) which is screw-engaged with the housing (21) and coaxial with the tapered axial member (32); an annular inner tapered surface formed on an inner peripheral surface of the lock nut (25) to correspond to the annular outer tapered surface; an intermediate cylinder member (21 h) positioned between the annular outer and inner tapered surfaces; and a lock piece (27) inserted into a radial through hole (26) and contacting the annular outer and inner tapered surfaces. The lock nut (25) can press the lock piece (27) against the annular outer tapered surface via the annular inner tapered surface to lock the piston assembly (30) by adjusting the lock nut (25) with respect to the housing (21).
Inventors:
Takashi Ejiri
Application Number:
JP2002351726A
Publication Date:
August 13, 2008
Filing Date:
December 03, 2002
Export Citation:
Assignee:
Fujikura Rubber Industry Co., Ltd.
Neriki Co., Ltd.
Neriki Co., Ltd.
International Classes:
F17C13/04; F15B15/26; F16K1/30; F16K31/122; F16K31/163; F16K35/00; F16K35/10; F17C13/02
Domestic Patent References:
| JP7044971U | ||||
| JP2001271961A | ||||
| JP11037341A | ||||
| JP60196005U |
Attorney, Agent or Firm:
Kunio Miura