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1. 发明专利

JP2001280559A SCREW JOINT STRUCTURE OF VALVE MEMBER AND HOUSING 失效
公开(公告)号：JP2001280559A
公开(公告)日：2001-10-10
申请号：JP2000097872
申请日：2000-03-30
申请人： NABCO LTD , KOYO SANGYO CO
发明人： ASANO YOSHIO , MORITA MITSUMASA , KUROMITSU SUSUMU , DENDA HITOSHI , TAMURA TAKASHI , EGUCHI TAKASHI
IPC分类号： F16L15/00 , F16K27/00
摘要： PROBLEM TO BE SOLVED: To provide a screw joint structure of a valve member which hinders machining chips from intruding to the inside. SOLUTION: A tapered female thread portion 3 and a parallel female thread portion 4 continued thereto are formed on a housing 1 of a valve member, and a piping member 2 is furnished with a tapered male thread portion 5 which is fitted in the tapered female thread portion 3, and the tapered male thread portion 5 on the piping member 2 is engaged with the tapered female thread portion 3 and parallel female thread portion 4 in the housing 1, and thereby machining chips 7, 8 in the threaded portions are captured by a gap 6 formed between the parallel female thread portion 4 in the housing and the tapered male thread portion 5 on the piping member 2, so as to hinder the chips from intruding into the valve member.

2. 发明专利

JPH10196811A GAS COCK WITH INSPECTION HOLE 失效
公开(公告)号：JPH10196811A
公开(公告)日：1998-07-31
申请号：JP35766796
申请日：1996-12-27
申请人： KOYO SANGYO CO
发明人： EGUCHI TAKASHI
IPC分类号： F16K5/00 , F16K37/00
摘要： PROBLEM TO BE SOLVED: To reduce the number of part items of and the manufacturing cost of a gas cock having an inspection hole with an opening to which a removable stop tap can freely be set with, by fitting an indication ring on the periphery of an outlet side of the connection section and connecting the front end of a band provided integrally with the indication ring to the stop tap. SOLUTION: A gas cock 1 can be opened and closed by turning a stopper body enclosed in a housing 23 with a handle 4. An protruded section 24 is formed on one of the outer side of the housing section 23 and an opening 25 is provided at the front end of the protruded for an inspection hole. To the opening of the inspection hole 25, a stop tap 5 is fixed. To prevent the stop tap being missed, an indication ring 6 with a band is used and tightly fitted on the peripheral surface of the connecting joint at the outlet side. This indication ring 6 is integrally provided with an indication ring section 61 having a caution indication of 'Remove On This Side' and a holding ring section 63 arranged at the front end of a band 62 linked to the indication ring section 61. Thus, the missing of the stop tap 5 can be prevented by simply connecting it to the holding section 63.

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