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31. 发明专利

JP2002228004A SEALING MECHANISM FOR ROTATION AND FOR SLIDE IN AXIAL DIRECTION BETWEEN TWO MEMBERS 失效
公开(公告)号：JP2002228004A
公开(公告)日：2002-08-14
申请号：JP2001027800
申请日：2001-02-05
申请人： SANWA KIZAI CO LTD
发明人： HAMANO MAMORU , TANAKA TOSHIO
IPC分类号： F16J15/18
摘要： PROBLEM TO BE SOLVED: To utilize a sealant suitable for rotation and slide in the axial direction, in a sealing mechanism disposed at a fitting portion in which two members are rotatably and slidable in the axial direction. SOLUTION: In the sealing mechanism for rotation and slide in the axial direction between two members, an inner round bar member is inserted in an outer cylinder member to be rotatable and axially slidable to form the fitting potion. In the fitting portion: (a) an axially sliding sleeve having a sealant for axially sliding on an inner circumferential face is fitted to the inner round bar member unrotatably and axially slidably by a required distance, while the sealant for axially sliding is brought into contact with an outer peripheral face of the inner round bar member, and the axially sliding sleeve is engaged with the outer cylindrical member rotatably and axially unslidably; and (b) a rotating sleeve having a sealant for rotation on the inner peripheral surface is rotatably fitted to the axially sliding sleeve while the rotating sealant is brought into contact with an outer peripheral face of the sleeve, and the rotating sleeve is fixed to the outer cylindrical member.

32. 发明专利

JPH11152748A PILE INSTALLATION BY INNER EXCAVATION APPARATUS FOR HOLLOW PILE TO BE ROTATIONALLY JACKED 失效
公开(公告)号：JPH11152748A
公开(公告)日：1999-06-08
申请号：JP33370197
申请日：1997-11-19
申请人： SANWA KIZAI CO LTD
发明人： YAMAZAKI KAZUO , TANAKA TOSHIO
IPC分类号： E02D7/00
摘要： PROBLEM TO BE SOLVED: To insert a screw auger into a hollow pile to be rotationally jacked by a hollow pile rotational jacking device to continuously excavating the inside of the hollow pile and use the rotation of the hollow pile as a driving source of the screw auger. SOLUTION: A mast 8 is vertically erected to a hollow pile rotationally jacking device B installed on the ground in order to force a hollow pile 6 into the ground with holding it vertically to rotate. A holder 10 is borne on the mast 8 in a treely liftable manner, the upper end of the hollow pile 6 and the upper end of a screw auger 19 inserted into the hollow pile 6 are respectively borne on the holder 10 in a rotatable manner and, at the same time, a means for transferring the rotation of the hollow pile 6 to the screw auger 19 is provided.

33. 发明专利

JPH07259466A HOSE SAFELY HOLDING DEVICE AT CUT-OFF OF FLUID FEED HOSE IN EXCAVATOR, ETC. 失效
公开(公告)号：JPH07259466A
公开(公告)日：1995-10-09
申请号：JP7127794
申请日：1994-03-17
申请人： SANWA KIZAI CO LTD
发明人： TANAKA TOSHIO
IPC分类号： E21B19/02 , B66D1/54 , E02D3/12 , E02D17/13 , E02F5/02
摘要： PURPOSE:To hold a hose at cut-off of a fluid feed hose so as to prevent danger of falling off by forming a clutch mechanism out of a driving wheel fixed to a passive pulley, a driven wheel rotatably supported on the outer circumference, and a plurality of clutch pieces coincident with the driving wheel. CONSTITUTION:Passive pulleys 12 bringing their pulley grooves 13 in contact with a fluid feed hose 8 drawn out from a hose winding reel 7 to an operation rod side are rotatably supported by driving wheels 18 rotatably fixed to the passive pulleys 12. Driven wheels 17 are rotatably supported concentrically on the outer circumference and independently from the driving wheels 18. A plurality of clutch pieces 23 are movably engaged with the driving wheel at the positions in contact with the driven wheel 17 by the centrifugal force due to rotation of the driving wheel. A centrifugal clutch mechanism is formed out of the above-mentioned driving wheel 18, the driven wheel 17, and the clutch pieces 23. A stop lever 28 having claws 27 on its extreme end is fixed to the driven wheel 17, the claws 27 are put in the positional relation so that the fluid feed hose 8 is locked with them by rotation of the driven wheel 17 in the winding direction of the fluid feed hose.

34. 发明专利

JPH10220158A TURNING-TOGETHER PREVENTIVE DEVICE OF SWIVEL DEVICE IN EXCAVATOR 失效
公开(公告)号：JPH10220158A
公开(公告)日：1998-08-18
申请号：JP2033897
申请日：1997-02-03
申请人： SANWA KIZAI CO LTD
发明人： TANAKA TOSHIO
IPC分类号： E21B21/02 , E02D3/12
摘要： PROBLEM TO BE SOLVED: To protect a swivel device from being turned together in an excavator provided with a chemical supply swivel device. SOLUTION: This excavator is provided with a swivel device 14, which penetrates and extends a continuous length excavation rod 8 upwardly on a drive unit 6 libtably mounted on a short length leader mast 2 and is designed to supply a chemical to the upper part of the excavation rod 8 by way of a chemical distribution hole provided in the upper part of the rod 8. In this case, a reaction receiving arm 17 is extended on the lateral side of a fixing member of the swivel device 14 while one end of the wire 21 is connected to the reaction receiving arm 17 so that it may hang. At the same time, a wire chuck device 23 is provided on the drive 6 so as to chuck the half-way of the wire 21.

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