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1. 发明专利

JP2000096567A HEAT FOR ENLARGED FOOT-PROTECTION IN INNER EXCAVATION 失效
公开(公告)号：JP2000096567A
公开(公告)日：2000-04-04
申请号：JP26311498
申请日：1998-09-17
申请人： TOYO ASANO FOUND CO LTD , JIYOUBU SANGYO KENZAI KK , DAIDO CONCRETE , NIPPON KOATSU CONCRETE KK , NIPPON HUME PIPE , MAEDA SEIKAN KK , MAX CONCRETE KK , YAMAZAKI PILE KK , MARUNAKA CONCRETE KOGYO KK , SANWA KIZAI CO LTD
发明人： KATSURAGI MASAO , TAKIGUCHI TADAMORI , YAMAZAKI MORIHIKO , YAMADA SATORU , TSUDA KAZUYOSHI , TADA MASAAKI , YAMASHITA ATSUHIRO , ABE TATSUYA , KOMORI AKIHIKO , EGASHIRA HIROYUKI , YAMAZAKI KAZUO
IPC分类号： E02D7/28
摘要： PROBLEM TO BE SOLVED: To increase a supporting force by providing a ring-shaped nozzle ejecting a gas in the same direction surrounding a liquid-jetting stream, at the periphery of a high pressure liquid jetting nozzle of the head. SOLUTION: A ring-shaped gas ejecting nozzle 8 is formed at the periphery of a high pressure liquid jetting nozzle 5 of a head 1 to communicate with a compressed air passage 11. A gas ejecting hole 4 is closed. In the settling process of the pile, compressed air which has been conventionally forced to eject through the ejecting hole 4 is forced to eject through the nozzle 8, and compressed air is ejected from the periphery of the nozzle 5 to form an air entraining layer at the periphery of the liquid jetting stream. The frictional energy loss around the liquid jetting stream is reduced and the collision force of the jetting stream increases and the diameter of a pedestal to be formed becomes large. Instead of this, a high pressure liquid jetting nozzle constituted of a plurality of openings positioned close to each other is disposed at the same level in the axial direction of the head or at a position having a level difference in the axial direction of the head, and the ring-shaped gas ejection nozzle is provided at the periphery. In this way, a long term supporting force of the pedestal foot-protection pile can be increased.

2. 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.

3. 发明专利

JPH1037178A GROUND IMPROVING DEVICE 失效
公开(公告)号：JPH1037178A
公开(公告)日：1998-02-10
申请号：JP19337196
申请日：1996-07-23
申请人： TONE CHIKA GIJUTSU KK , SANWA KIZAI CO LTD
发明人： KUSUDA KAZUO , SETO KOJIRO , EGASHIRA HIROYUKI
IPC分类号： E02D3/12
摘要： PROBLEM TO BE SOLVED: To provide a ground improving device which admits use of a long stretching excavation shaft and whose center of gravity can be set low stably even when the works are applied to a large area using a plurality of excavation shafts. SOLUTION: A ground improving device concerned 1 includes a plurality of excavation shafts 10 having an outer shaft 11 and inner shaft 12 which are rotated in the opposite directions where a working head 70 is connected at the tip. The arrangement comprises an excavation shaft driving device 20 installed under a leader and equipped with a prime mover 21 and a transmission mechanism 22 for transmitting the power of the prime mover 21 to the outer shafts 11 of the excavation shafts 10, a rotation synchronizing device 40 installed between the outer shafts 11 for synchronizing the rotations of the outer shafts 11, and an excavation shaft elevating/sinking device 50 which is arranged over the device 20 as capable of elevating and sinking along the leader, to which the tops of the outer shaft 11 and inner shaft 12 of the excavation shafts 10 are mounted, and which is equipped with a reversely transmitting mechanism 51 for elevating and sinking the excavation shafts 10 and transmitting the powers of the outer shafts 11 to the inner shafts 12.

4. 发明专利

JPH09177122A LEADER SUPPORTING DEVICE FOR SELF-PROPELLED EXCAVATING MACHINE 失效
公开(公告)号：JPH09177122A
公开(公告)日：1997-07-08
申请号：JP34038095
申请日：1995-12-27
申请人： KAJIMA CORP , SANWA KIZAI CO LTD
发明人： MIYOSHI KATSUTOSHI , HIGUCHI YASUO , SHIRAI SHUNSUKE , EGASHIRA HIROYUKI
IPC分类号： E02F5/02 , E02D3/12
摘要： PROBLEM TO BE SOLVED: To rotate a leader greatly in a normal plane by constituting a stay as a piston cylinder device and constituting a spherical joint with a receiving base and a truck and supporting the receiving base in a rotatable manner relative to the truck. SOLUTION: When assembling an excavating device, a leader is pivotally attached to a catch folk. Then, a lower spherical end 12 of a piston rod 11 constituted as a piston cylinder device is inserted into a receiving base 14 of a spherical joint 13 and a spherical recess of a holding plate 15 for supporting. Then, pins 19 and 19' are inserted into holes 18 and 18' of the receiving base 14, the spherical joint 13 is coupled to a supporting plate 17 and fixed to the top of the truck through a base plate 16. Moreover, the upper end portion of the stay is pivotally attached to the upper portion of the leader. By operating the stay by using the above, the leader can be rotated with a large angle in the normal plane, brace holes are drilled in adjacent to the normal hole, and then brace fixing method can be carried out.

5. 发明专利

JPH07133614A EXCAVATOR AND EXCAVATING SHAFT 失效
公开(公告)号：JPH07133614A
公开(公告)日：1995-05-23
申请号：JP28151593
申请日：1993-11-10
申请人： TONE CHIKA GIJUTSU KK , SANWA KIZAI CO LTD
发明人： NAGANO MAKOTO , EGASHIRA HIROYUKI
IPC分类号： E21B15/00 , E02D3/12 , E02D17/13 , E02F5/00 , E02F5/02 , E21B3/02 , E21B3/025 , E21B17/046
摘要： PURPOSE:To make the effective length of an excavating shaft longer, and enhance a working efficiency by forming the excavating shaft slidably supported on a leader out of mutiple hollow pipes, letting power for an supported excavating means and a lifting means be supplied from a single prime mover set at the lower section. CONSTITUTION:The excavating shaft 26 which is slidably supported by the leader 22 of an excavator 21 in a place such as the inside of a tunnel where a working height is limited, is formed out of multiple hollow pipes, and concurrently an excavating shaft drive means 23 and an excavating shaft lifting means 24 are disposed at the lower section and the upper section respectively via a speed change transmitting mechanism. Besides, a prime mover 25 is set in the lower drive means 23 so as to allow an excavating blade and the like to be rotated, and also to allow the lifting means 24 to be driven via the excavating shaft 26. In addition, the center of gravity of the leader 22 is lowered to prevent the leader from falling down, and concurrently the drive means 23 and 24 are made thin in thickness to lengthen the effective length of the excavating shaft 26 as much as possible, so that the number of shaft replacement is thereby reduced. Besides, an injection path for coolant and cement milk and the like is provided for the inside of the excavating shaft 26. By this constitution, works can thereby be efficiently carried out.

6. 发明专利

JPH10246087A MAST SUPPORTER OF WORKING MACHINE FOR FOUNDATION WORK 失效
公开(公告)号：JPH10246087A
公开(公告)日：1998-09-14
申请号：JP6394997
申请日：1997-03-04
申请人： SANWA KIZAI CO LTD
发明人： EGASHIRA HIROYUKI
IPC分类号： E21B15/00 , E02D7/16
摘要： PROBLEM TO BE SOLVED: To miniaturize a mast supporter, and to improve safety by installing a sliding base to an upper machine body in a freely horizontally movable manner, rotatably supporting a swivel base to the sliding base and supporting a mast to the swivel base. SOLUTION: Excavated materials are stirred while excavating a pit by a kelly-bar type stirring rod 8 under the state, in which a sliding base 11 is positioned at an intermediate place in the longitudinal direction of a guide structure frame 10. Cement milk is injected, and a ground is improved. A swivel base 12 is turned at a required angle by driving a torque actuator 20 after improvement corresponding to one pit, a leader mast 3 and the stirring rod 8 with the leader mast 3 are slewed and moved to sections adjacent to a preceding pit, and excavation, stirring and the injection of cement milk are conducted. The swivel base 12 is rotated at every required angle similarly, the rod 8 is slewed successively along the orbit R of slewing, and the ground is improved in response to one slewing section. A travelling truck 1 is moved forward at a necessary distance, and improvement corresponding to one slewing section is repeated. Accordingly, the movement of the mast in a narrow site can be ensured.

7. 发明专利

JPH1030224A STIRRING HEAD FOR GROUND IMPROVING DEVICE 失效
公开(公告)号：JPH1030224A
公开(公告)日：1998-02-03
申请号：JP18508096
申请日：1996-07-15
申请人： TONE CHIKA GIJUTSU KK , SANWA KIZAI CO LTD
发明人： KUSUDA KAZUO , SETO KOJIRO , EGASHIRA HIROYUKI
IPC分类号： E02D3/12
摘要： PROBLEM TO BE SOLVED: To satisfactorily stir and knead excavated soil and a hardening agent with a stirring head at a high kneading speed. SOLUTION: This stirring head 20 is fitted to an excavating shaft 10 provided with an inner shaft 12 and an outer shaft 11 rotated in opposite directions to each other, and it stirs and kneads excavated soil and a hardening agent in an excavation hole. The stirring head 20 is provided with an upper stir section 30 and a lower stir section 40, and the upper stir section 30 is constituted of an upper inner blade 31 rotated together with the inner shaft 12 and an upper outer blade 32 rotated together with the outer shaft 11 and arranged so that its locus surrounds the rotary locus of the upper inner blade 31. The lower stir section 40 is constituted of an injection nozzle 41 rotated together with the inner shaft 12 and injecting the hardening agent force-fed into the inner shaft 13 in the radial direction, and a lower blade 42 rotated together with the inner shaft 13 so that its rotary locus surrounds the injection nozzle 41 and having an injection region restricting plate 43 restricting the injection of the hardening agent to the outside of the region.

8. 发明专利

JPH09177121A AUGER DRILLING MACHINE 失效
公开(公告)号：JPH09177121A
公开(公告)日：1997-07-08
申请号：JP34037695
申请日：1995-12-27
申请人： KAJIMA CORP , SANWA KIZAI CO LTD
发明人： MIYOSHI KATSUTOSHI , HIGUCHI YASUO , SHIRAI SHUNSUKE , EGASHIRA HIROYUKI
IPC分类号： E02F5/02
摘要： PROBLEM TO BE SOLVED: To make the movement of a drilling machine easier by attaching slide fittings, which surround a guide pipe of a leader and slide, to a drive device and also attaching a roller which turns and moves on the guide pipe. SOLUTION: Slide fittings 11, which surround a pair of right and left guide pipes 6 of a leader and slide, are attached to upper and lower portions on the side facing the leader of a drive device 7 which rotates a rod having a drilling blade at the tip. Also, a roller 12 which rolls on the guide pipe 6 is attached to a drive device 7. A chain is intermeshed between a driven sprocket attached to an upper end portion of a leader and a driving sprocket attached to a lower end portion of the leader, and the chain is then coupled to a drive device 7. By doing this, even through a great normal component of force is applied during diagonal drilling, the roller 12 rolls on the guide pipe 6 so that the drive device 7 can be easily moved.

9. 发明专利

JPH08184032A STIRRING BLADE CONSTRUCTION OF GROUND IMPROVEMENT DEVICE 失效
公开(公告)号：JPH08184032A
公开(公告)日：1996-07-16
申请号：JP32718794
申请日：1994-12-28
申请人： TONE CHIKA GIJUTSU KK , SANWA KIZAI CO LTD
发明人： BABA TAKEKAZU , UCHIDA YOSHINORI , HASHIBA SHIGERU , EGASHIRA HIROYUKI
IPC分类号： E02D3/12
摘要： PURPOSE: To make sufficient stirring and mixing without making rotating together not only in the direction parallel with an excavation shaft and in the vertical direction thereof by revolving multistage stirring blades arranged up and down alternatively in the opposite direction each other. CONSTITUTION: Since an outside shaft 11 and an inside shaft 12 are revolved in the opposite direction each other, stirring blade bodies 15 and 16 following the rotation of the outside shaft 11 and stirring blade bodies 17 and 18 following the rotation of the inside shaft 12 are revolved in the opposte direction each other, and excavated soil and hardener are stirred to mix. Then, linear stirring blades 16 and 17 formed in the shape of a plate or a blade as nest of boxes incorporated in frame shaped stirring blade bodies 15 and 18 formed in a roughly U-shape pass while they are inverted. By the constitution, alternatively arranged up and down mutistage invertion stirring blade construction is formed, and sufficient stirring and mixing are made. Since both radial and axial directions of an excavation shaft 10 are cut off, common rotation of the stirring blades 15-18 is prevented.

10. 发明专利

JP2000104478A HANGING DEVICE OF EXCAVATION ROD IN EXCAVATOR 失效
公开(公告)号：JP2000104478A
公开(公告)日：2000-04-11
申请号：JP27344298
申请日：1998-09-28
申请人： SANWA KIZAI CO LTD
发明人： EGASHIRA HIROYUKI , FUJII HAJIME
IPC分类号： E21B7/00 , E21B17/02
摘要： PROBLEM TO BE SOLVED: To dispense with stretching of a wire at an elevated spot, to ensure holding of a drilling rod and to completely eliminate risk of falling in adding an excavation rod. SOLUTION: This device includes a hanger main body 20 having an insert hole where a male joint 12 of an excavation rod such as a screw auger or the like in an excavator is fitted opened in the lower surface thereof, a hanging hook 23 fitted to the upper part of the main body, locking pins 26, 26 projected and recessed from the inside surface of the insert hole in the horizontal direction to engage extending over a cutout 16 of the side surface of the male joint 12, and operating levers 30, 30 operated by an operating wire 33, which are pivoted on the outside surface of the hanger main body 20 to be freely oscillated to project and recess the locking pin 26. In this case, the device is provided with a stopper mechanism 40 for binding the operating levers 30, 30 when the locking pins 26, 26 are engaged with the cutout 16 of the male joint 12 by the operating levers 30, 30.

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