发明名称 PIPING CONNECTION STRUCTURE FOR CONSTRUCTION MACHINERY
摘要 PROBLEM TO BE SOLVED: To prevent an operator from being exposed directly to jetted oil even when high pressure oil is jetted due to a loose connection or separation between a flexible hose and pipe or damaged hose. SOLUTION: A jet flow stopping barrel 30 is fitted to a female coupling member 23 constituting a connecting member 25 which couples a hose 20 to a pipe 21 detachable and a holding barrel 31 is fitted to a male coupling member 24, and these jet flow stopping barrel 30 and the holding barrel 31 are mutually screwed. Thus, an end plate portion 32 which can be contacted to a hexagonal portion 24b in the male coupling member 24 is coupled to a holding barrel 31; a ring-shaped stopper plate 33 contacting a base 23a in a female coupling member 24 at the middle position of the inner peripheral surface is connected to the jet flow stopping barrel 30; if the jet flow stopping barrel 30 and the holding barrel 31 are screwed, both the coupling members 23, 24 and the lead-out portion of the hose 20 are fully covered and the jetting of high pressure oil, if occurs, can be stopped.
申请公布号 JP2000212993(A) 申请公布日期 2000.08.02
申请号 JP19990018677 申请日期 1999.01.27
申请人 HITACHI CONSTR MACH CO LTD 发明人 SHUKUZAWA KAZUNORI
分类号 E02F3/36;E02F9/00;E02F9/14;(IPC1-7):E02F9/00 主分类号 E02F3/36
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