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81. 发明专利

JPH08303174A DRIVING-SECTION BEARING DEVICE IN EXCAVATOR AND THE LIKE 失效
公开(公告)号：JPH08303174A
公开(公告)日：1996-11-19
申请号：JP11181695
申请日：1995-05-10
申请人： SANWA KIZAI CO LTD
发明人： EGASHIRA HIROYUKI
IPC分类号： E21B7/00 , E02D17/13 , E02F5/02 , E21B19/00
摘要： PURPOSE: To eliminate the need for bolting operation at a high place, and to improve the efficiency of operation while enhancing safety. CONSTITUTION: In a bearing device for a driving section 15, which is mounted along guide rails 4, 4 for a leader disposed in upright in a freely vertical movable manner, to which a working member such as an excavating shaft is connected and on which a driving source for rotating and driving the working member is loaded, a pair of left and right sliding fittings 16, 16 positioned at highest places are formed detachably into fitting grooves 21 formed to a holder 19 at the rear of the driving section 15. Engaging pins 23 are inserted freely into engaging holes shaped to the side faces of the sliding fittings 16 fitted into the fitting grooves 21 from the side sections of the fitting grooves 21.

82. 发明专利

JPH08246779A FEMALE JOINT UNIT IN AUTOMATIC COUPLING DEVICE FOR OUTPUT SHAFT AND EXCAVATION WORKING SHAFT 失效
公开(公告)号：JPH08246779A
公开(公告)日：1996-09-24
申请号：JP8091595
申请日：1995-03-14
申请人： SANWA KIZAI CO LTD
发明人： TSUBOTA KAZUKI
IPC分类号： E21B10/44 , E21B17/03 , F16D1/02 , F16D1/04
摘要： PURPOSE: To aim at the promotion of miniaturization and lightweightiness in a female joint part and the omission of a slip ring mechanism. CONSTITUTION: An output shaft 16 is projected out of a driving device to be composed of mounting a motor or the like on a holder to be supported in an irrotational state on a support member, while a tubular female joint 20, where a male joint 34 is to be fitted and vice versa, is clamped tight to this output shaft, and a lock member 25 is supported so as to make it retractable in a direction engaging or disengaging to or from a lock groove of the male joint inserted into the female joint from a window 24 pierced through a tubular wall of the female joint. An operating ring 28 consisting of a magnetic member to press directly or indirectly the lock member to being engaged with the lock groove is supported on an outer boundary of the female joint free of reciprocating slide motion to a lock member pressing position and a pressing releasing position, and then a slide motion driving solenoid coil 32 of the operating ring is supported on an irrotational holder.

83. 发明专利

JPH08240091A JOINT DEVICE FOR EXCAVATION WORK SHAFT 失效
公开(公告)号：JPH08240091A
公开(公告)日：1996-09-17
申请号：JP6669695
申请日：1995-03-02
申请人： SANWA KIZAI CO LTD
发明人： TORIKAI MITSUTOSHI , TANAKA TOSHIO
IPC分类号： E21B17/046 , F16D1/02 , F16D1/04
摘要： PURPOSE: To simplify a connecting and separating work for the plug section of a male joint and the socket hole of a female joint. CONSTITUTION: A cylindrical female joint 2 with a lengthwise socket through- hole 3 is provided at the end of one of shafts as a pair, while a male joint 4 with a plug section 5 freely detachable from the socket hole 3 is formed on the end of the other shaft. A radial lock hole 7 is drilled through the surrounding wall of the male joint 2, and a lock control piece 9 is inserted in the hole 7, so as to be freely slidable in a radial direction. Also, a stop key 14 is held on the external side of the joint 2, so as to be detachable from the lock control piece 9 for coupling to and restraining the travel thereof, when the internal end of the piece 6 moves to a position corresponding to the internal surface of the socket hole 3. Also, the lock control piece 9 is supported at the position of the section 5 faced to the hole 7, so as to be capable of advance and retreat from the hole 7, and resiliently energized with a spring 21 at all times for entering the hole 7.

84. 发明专利

JPH08209740A CONTINUOUS SLOT EXCAVATION METHOD USING MULTI-SPINDLE EXCAVATOR AND MULTI-SPINDLE EXCAVATOR USED THEREFOR 失效
公开(公告)号：JPH08209740A
公开(公告)日：1996-08-13
申请号：JP3470295
申请日：1995-02-01
申请人： SANWA KIZAI CO LTD
发明人： YAMAZAKI KAZUO
IPC分类号： E02F5/02 , E02D5/18
摘要： PURPOSE: To make it possible to excavate continuous slots without wedge-like part remaining unexcavated by rotationally lowering multi-spindle stirring shafts to excavate secondary continuous holes for connecting them ontinued to primary continuous holes, and vibrating and inclining the multi-spindle stirring shafts to rotationally raise. CONSTITUTION: Multi-spindle stirring shafts 9 of a multi-spindle excavator is rotationally lowered by a revolving drive section 8, and a plurality of circular pits corresponding to operating wings subsequently excavate adjacent or partially lapped and continued primary continuous holes H1 in the ground. Then, the multi-spindle stirring shafts 9 are pulled out, one end of each of the multi-spindle shafts is inserted in one pit of the other end of each of the primary continuous holes H1 , and the secondary continuous holes are excavated for connecting them. Then, the multi-spindle stirring shafts 9 in the secondary continuous holes are vibrated and inclined to the primary continuous holes H1 side with the revolving drive section 8 as the center, and the operation wings of the multi-spindle stirring shafts 9 are made to correspond to a wedge-like part remaining unexcavated in the primary and secondary continuous holes. The multi-spindle stirring shafts 9 are rotationally raised in a state to remain inclined, and part remaining unexcavated is excavated to form continuous slots.

85. 发明专利

JPH08170481A LARGE BORE EXCAVATOR 失效
公开(公告)号：JPH08170481A
公开(公告)日：1996-07-02
申请号：JP33361394
申请日：1994-12-16
申请人： SANWA KIZAI CO LTD
发明人： HAMANO MAMORU , TORIKAI MITSUTOSHI , YAMADA SHIGERU , IMAMURA YOSHIO
IPC分类号： E21B7/00 , E21B10/32 , E21B19/00
摘要： PURPOSE: To enable the excavation of an annular hole corresponding to the protruding width from the periphery of a casing by fitting plural expandable arms, provided with cutter drums at the tips, oscillatingly to the vicinity of the lower end of the casing of an excavator. CONSTITUTION: A casing 1 of hollow cylinder shape having openings 6 at both ends and numerous bits protrusively provided at the lower end is supported to a casing rotating push-in device, installed on the ground, in such a way as to be driven to be rotated and pushed in. Plural arms 4 provided at the tips thereof with cutter drums 5 having numerous bits rotatory-driven by a hydraulic motor are fitted to the peripheral surface near the lower end of the casing 1. It is so formed that the tips of the expansion arms 4 can be reciprocated from the diameter contracted position to the diameter enlarged position by hydraulic cylinders 15 and piston rods 16 fitted to brackets 14. The arms 4 are contracted and pressed into the ground while rotating the casing 1 by the casing rotating push-in device, and the hydraulic motor is driven to excavate an annular hole with a diameter, corresponding to the protruding width from the casing, by the cutter drums 5.

86. 发明专利

JPH08170480A EXCAVATING EXPANSION HEAD 失效
公开(公告)号：JPH08170480A
公开(公告)日：1996-07-02
申请号：JP31725694
申请日：1994-12-20
申请人： ASAHI CHEMICAL IND , SANWA KIZAI CO LTD
发明人： SHIGEMATSU HIDEKAZU , YAMAZAKI KAZUO
IPC分类号： E21B7/00 , E21B10/44
摘要： PURPOSE: To enable expansion digging at the time of bulb development without depending on a hollow pile by fitting a rotating cylinder with play to the peripheral part of an excavating rod, and providing the rotating cylinder with a pressure receiving plate and engaging grooves for controlling the attitude of expansion blades. CONSTITUTION: Expansion blades 5, 5 are positioned in the positions of the second engaging grooves 162 , 162 of a rotating cylinder 12 and put in the contracted state. In this state, an excavating rod 2 is rotated normally to excavate the ground. At the time of reaching the specified depth and expansion-digging the lower end of an excavated hole, the rod 2 is rotated reversely. The pressure receiving plates 15, 15 of the rotating cylinder 12 thereby receive the resistance of sediment so as to be rotated relatively to a head 2, and the blades 5, 5 enter into first engaging holes 161 , 161 and rotate upward so as to be put in the enlarged state of enabling expansion digging. When the rod 2 is rotated reversely, the rotating cylinder 12 is further rotated, and the inclined face 17 is rotated along the blade 5. The blades 5, 5 are thereby pressed downward, and a third engaging groove 163 is engaged with the blade 5, so that the blade 5 is returned into the contracted state, and the rod 2 is pulled out of the excavated hole.

87. 发明专利

JPH07238766A EXCAVATOR 失效
公开(公告)号：JPH07238766A
公开(公告)日：1995-09-12
申请号：JP2845594
申请日：1994-02-25
申请人： MORIGUMI KK , SANWA KIZAI CO LTD
发明人： TAGUCHI TSUNEO , HANASHIRO YUKIO
IPC分类号： E21B7/00 , E02D17/13 , E02F5/02 , E21B7/20
摘要： PURPOSE:To make it possible to pull out a casing easily. CONSTITUTION:An auger drive device 4 and a casing drive device 5 are suspended with wires 6 and 7 respectively along a leader mast 2 so that they may be lifted freely. An auger screw 10 is connected to the auger drive device while a casing 15 which outwardly fits in the auger screw, is connected to the casing drive device so that each drive device may drive independently. There are provided an upper part chuck device 16, which chucks the outer periphery of the casing attached to the casing drive device and a lower part chuck device 17, which is located below the upper part chuck device and chucks the outer periphery of the casing. Hydraulic cylinders 18 and 19 are interposed between the casing drive device and the lower part chuck device. When the pull-out load of the casing is increased excessively, the casing is chucked with both the upper and lower part chuck device alternately so that the casing 15 may be pulled out by driving the hydraulic cylinders 19 with the chuck side as a reaction receiver.

88. 发明专利

JPH07158056A CONTROL DEVICE FOR SOIL IMPROVEMENT MACHINE 失效
公开(公告)号：JPH07158056A
公开(公告)日：1995-06-20
申请号：JP30908093
申请日：1993-12-09
申请人： SANWA KIZAI CO LTD
发明人： TSUBOTA KAZUKI , INOUE KOJI
IPC分类号： E02F9/20 , E02D3/12 , E02D17/13 , E02F5/02
摘要： PURPOSE:To improve the soil to the best condition suitable for the properties thereof, regardless of the change of an excavation or drawing speed due to the properties, by calculating the number of revolutions of an agitation rod optimum for soil agitation at all times or at every unit time. CONSTITUTION:At an excavation and agitation process, an electric motor 7 is first started to rotate an agitation rod 8. Then, a drive section 4 is lowered, while the soil is being filled with chemicals 11 from the end of the rod 8, thereby improving the soil. When the soil is being excavated and agitated, a current excavation depth is always detected from the paid-out length or the like of a wire 5. Then, an excavation speed is calculated on the basis of a signal for the excavation depth so detected and furthermore, the optimum number of revolutions of the rod 8 is calculated, using the established formula. The result of the calculation is converted to a frequency signal and transmitted to the motor 7 and even to the rod 8. At the time of drawing the rod 8, the optimum number of revolutions is also calculated for the control thereof.

89. 发明专利

JPH0559725A SLUDGE WITHDRAWAL DEVICE FOR INTERNAL EXCAVATOR 失效
公开(公告)号：JPH0559725A
公开(公告)日：1993-03-09
申请号：JP21838891
申请日：1991-08-29
申请人： SANWA KIZAI CO LTD
发明人： HIRAKAWA ETSUO , MIURA JUN
IPC分类号： E02D7/00 , E02D13/00 , E02F7/02 , E21B12/06
摘要： PURPOSE:To contrive earth collecting work not to be required after the erection of a pile, by enabling excavated earth to be continuously discharged on ground. CONSTITUTION:In an internal excavator 1 for inserting an auger screw 13 into the internal section of a hollow pile 9 to be erected in ground, excavating the ground with the auger screw 13, and erecting the pile to be pressed through its excavated hole, an auger screw driving section 5 fitted movably up and down, to a leader mast 3 set vertically on the ground, a pile retaining device 7 connected movably up and down together with the driving section 5, a sludge withdrawal hopper 11 set on the upper section of the pile retaining device 7, a sludge withdrawal duct 16 extended to an external section from the sludge withdrawal hopper 11, and a sludge withdrawal chute 18 set in the longitudinal direction along the side surface of the leader mast 3, are arranged. On the side surface of the sludge with-drawal chute 18, a slit opening section 19 with a section only to be opened, with the opening end section 16a of the sludge with-drawal duct 16 inserted into, opened along the longitudinal direction, and with the other section to be closed is formed. Then, into the slit opening section 19, the opening end section 16a of the sludge withdrawal duct 16 is inserted.

90. 发明专利

JPH058288B2 失效
公开(公告)号：JPH058288B2
公开(公告)日：1993-02-01
申请号：JP18910085
申请日：1985-08-27
申请人： SANWA KIZAI CO LTD
发明人： NAKAYAMA KANAME
IPC分类号： E02D3/10

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