Invention Grant
- Patent Title: Blocking configuration of oil pressure circuit hole
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Application No.: US14383120Application Date: 2014-01-07
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Publication No.: US09599225B2Publication Date: 2017-03-21
- Inventor: Takuya Nohara , Hiroyuki Chikugo , Shuuji Hori , Mitsumasa Akashi
- Applicant: Komatsu Ltd.
- Applicant Address: JP Tokyo
- Assignee: Komatsu Ltd.
- Current Assignee: Komatsu Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Locke Lord LLP
- International Application: PCT/JP2014/050077 WO 20140107
- International Announcement: WO2015/104792 WO 20150716
- Main IPC: F16J13/12
- IPC: F16J13/12 ; F16L55/11

Abstract:
A blocking configuration of an oil pressure circuit hole includes a plug screwed together with an aperture end portion of the oil pressure circuit hole provided to a main body. The plug includes: a shaft portion; an external thread portion disposed on a leading end of the shaft portion; an O-ring mounted on an outer periphery of a base end portion of the shaft portion and pressed between the outer periphery of the shaft portion and an inner periphery of the oil pressure circuit hole to seal them; a flange portion having an external diameter larger than that of the shaft portion and disposed on a part of a base end side of a storage groove on which the O-ring is mounted; and a polygonal column-shaped head portion on which a tightening tool is mounted and disposed on a part of a base end side of the flange portion.
Public/Granted literature
- US20160245408A1 BLOCKING CONFIGURATION OF OIL PRESSURE CIRCUIT HOLE Public/Granted day:2016-08-25
Information query
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