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1. 发明专利

JPS5581995A FULLLCASING TYPE REVERSE CIRCULATION DRILL METHOD AND APPARATUS 失效
公开(公告)号：JPS5581995A
公开(公告)日：1980-06-20
申请号：JP15424778
申请日：1978-12-15
申请人： HITACHI CONSTRUCTION MACHINERY , TAKENAKA KOMUTEN CO
发明人： KUSUMI HIROSHI , MATSUZAKI NAOTADA , ISHIKAWA YASUAKI , MIZUHATA TERUO , TAKAHASHI MASAAKI , IMAI TAKAYOSHI
IPC分类号： E02D7/26 , E21B7/20

2. 发明专利

JPS5813888A ROTARY SPEED CONTROL CIRCUIT OF DRILLING BUCKET FOR EARTH DRILL 失效
公开(公告)号：JPS5813888A
公开(公告)日：1983-01-26
申请号：JP11232281
申请日：1981-07-20
申请人： HITACHI CONSTRUCTION MACHINERY , TAKENAKA KOMUTEN CO
发明人： KUSUMI HIROSHI , HIRANO NOBUTAKA , YAMAMOTO KATSUMI , OOTAKI SHIYOUJI
IPC分类号： E21B44/00 , E21B44/06

3. 发明专利

JP2002322646A METHOD AND DEVICE FOR REMOVING EXISTING PILE 失效
公开(公告)号：JP2002322646A
公开(公告)日：2002-11-08
申请号：JP2001129680
申请日：2001-04-26
申请人： KAKUTOU KK , HITACHI CONSTRUCTION MACHINERY
发明人： KUBOTA SHUICHI , ANZAI KAZUO , KUSUMI HIROSHI
IPC分类号： E02D9/00 , E02D7/22 , E02D7/24
摘要： PROBLEM TO BE SOLVED: To provide a method for removing an existing pile at a low cost by building a casing around the existing pile for dissolving compaction of wrap around earth in the outer circumference part. SOLUTION: The casing 7 turned by an auger machine 6 is constructed of a lower casing 7a, in which a cutter is arranged in the tip while a screw 7as is arranged in the outer circumference, an upper casing 7b arranged above the lower casing, a casing 7c arranged above the upper casing 7b and having a screw 7cs, and a casing 7d arranged above the casing 7c.

4. 发明专利

JP2001342784A CASING ROTARY EXCAVATING DEVICE 失效
公开(公告)号：JP2001342784A
公开(公告)日：2001-12-14
申请号：JP2000166169
申请日：2000-06-02
申请人： HITACHI CONSTRUCTION MACHINERY
发明人： TAMURA KATSUMI , KUSUMI HIROSHI , TAWARA MASANORI
IPC分类号： E21B7/20 , E02D7/20 , E02D7/22
摘要： PROBLEM TO BE SOLVED: To provide a casing rotary excavating device for which any damage to a sliding portion due to the sliding of the guide cylinder can be repaired at a low cost and also the parts replacement can be reduced. SOLUTION: A lift frame 12 installed in a liftable manner on a base frame 1, a first guide cylinder 42 attached to the lift frame 12, a second guide cylinder 48 erected on a base frame fitted to the inside of the first guide cylinder 42, the lift frame 12 is lowered by guiding with both the guide cylinders 42 and 48 and the casing C is rotated and driven and the casing C is pressed while the lift frame 12 is lowered in the casing rotation excavating device, upper and lower two cylindrical bearing 100 of a synthetic resin-based type formed with a sliding material for a second guide cylinder 48 having a lower hardness than the second guide cylinder 48 is provided through a collar 101 at the inner peripheral portion at the lower end side of the first guide cylinder 42 in detachable, rotatable and slidable manners with the second guide cylinder 48, and the inner side of the collar 101 is used as a pool for a lubricating material.

5. 发明专利

JP2001342627A CUTTER FOR EXISTING STRUCTURE 失效
公开(公告)号：JP2001342627A
公开(公告)日：2001-12-14
申请号：JP2000164620
申请日：2000-06-01
申请人： HITACHI CONSTRUCTION MACHINERY
发明人： TAWARA MASANORI , KUSUMI HIROSHI , TAMURA KATSUMI
IPC分类号： E02D9/00
摘要： PROBLEM TO BE SOLVED: To provide a cutter for an existing structure suitable for horizontally cutting the existing underground structure whose core part is extracted. SOLUTION: This cutter for the existing structure cutting the existing structure such as an existing underground pile 2 whose core part is extracted, in the horizontal direction is provided with a stand 10 capable of being installed in a bottom part of the extracted core part, a pair of cutters 6 provided on the stand 10 through a reaction for4ce plate 10 so as to move in the horizontal direction, a shaft 5 fixing a rod mounting plate 7, provided so as to move in the vertical direction, and capable being rotated and driven, a pair of connection rods 8 connecting the shaft 5 to the cutters 6 by pivotally mounting them on the rod mounting plate 7 and the cutters 6 respectively by connection pins 8a, 8b and protruding the cutters 6 when the shaft 5 descends, and a pair of guide posts 11 and a guide cylinder 12 guiding the shaft 5 in the vertical direction.

6. 发明专利

JP2001090465A EXCAVATOR FOR EARTH DRILL, AND EARTH DRILL 失效
公开(公告)号：JP2001090465A
公开(公告)日：2001-04-03
申请号：JP26660199
申请日：1999-09-21
申请人： BANSHU KENKI KK , HITACHI CONSTRUCTION MACHINERY
发明人： ARAI OSAMU , ARAI KAZUHIRO , AJIRO SHUICHI , KUSUMI HIROSHI , NOZAKI SATOSHI
IPC分类号： E21B11/04 , B66C3/02
摘要： PROBLEM TO BE SOLVED: To provide an excavator for an earth drill, which can raise excavated materials to the ground, in excavation of obstacles such as batholith, rubble stones, and boulders, by means of the earth drill, and to provide the earth drill per se. SOLUTION: An excavator 2 for an earth drill is detachably attached to a lower end of a kelly bar 1. The excavator 2 includes a cylindrical bucket 7 attached thereto, which bucket has excavating claws 7a at a lower edge thereof and has its lower surface opened. The excavator 2 also includes an openable/closable bucket 8 housed in the cylindrical bucket 7, for holding materials excavated by the cylindrical bucket 7. Further, the excavator includes an operation driving device for operating the openable/closable bucket 8.

7. 发明专利

JPH10115171A CASING DRIVER 失效
公开(公告)号：JPH10115171A
公开(公告)日：1998-05-06
申请号：JP26948496
申请日：1996-10-11
申请人： HITACHI CONSTRUCTION MACHINERY
发明人： OZAWA HAJIME , KUSUMI HIROSHI
IPC分类号： E21B44/00 , E21B44/02
摘要： PROBLEM TO BE SOLVED: To provide a casing driver whose speed can be easily adjusted and which can be easily operated. SOLUTION: The rotational speeds of a casing and Thrustor push-in speeds are controlled so as to be varied by a power unit. An operation unit sets the rotational speeds of casing and Thrustor push-in speeds. In a touch panel 1100T of an operation panel in the operation unit, a plurality of switches L1-L5, M1-M5, H1-H5 arranged in the two-dimensional matrix-shape are displayed in such a manner that one side corresponds to the rotational speeds of the multistage casing and the other side corresponds to the multistage Thrustor push-in speed. By selecting a switch located at the intersection of rotational speed of casing of any one of stages and rotational speed of casing of any other one of stages, operators can select rotational speed of casing and rotational speed of casing at the same time.

8. 发明专利

JPH10102965A VERTICAL HOLE DRILLING MACHINE 失效
公开(公告)号：JPH10102965A
公开(公告)日：1998-04-21
申请号：JP25694796
申请日：1996-09-27
申请人： HITACHI CONSTRUCTION MACHINERY
发明人： NOZAKI SATOSHI , KUSUMI HIROSHI
IPC分类号： E21B7/00 , E21B17/00
摘要： PROBLEM TO BE SOLVED: To prevent interference between a boom and a front frame and to improve operability and safety. SOLUTION: This vertical hole drilling machine includes a front frame, which carries a kelly-bar rotary drive, and a boom, and is designed to drill a vertical hole using a drilling bucket. In this case, a boom elevating cylinder 1 and a frame elevating cylinder 2 are installed on a self-traveling vehicle main body, and a connecting line 15 provided with operation check valve 3a, 3c and a connecting line 16 provided with operation check valves 3b, 3d are communicated to the boom elevating cylinder 1, during the expansion and contraction of the boom elevating cylinder 1, respectively, so that pressure oil in the boom elevating cylinder 1 is forced into the frame elevating cylinder 2; the connecting lines 16, 15 are communicated to each other to discharge the pressure oil in the frame elevating cylinder 2 into the boom elevating cylinder 1. Therefore, as the boom elevating cylinder 1 expands and contracts the frame elevating cylinder 2 can also be made to expand and contract without bringing the front frame into contact with the boom.

9. 发明专利

JP2589232B2 失效
公开(公告)号：JP2589232B2
公开(公告)日：1997-03-12
申请号：JP17181491
申请日：1991-06-18
申请人： HITACHI CONSTRUCTION MACHINERY
发明人： KUSUMI HIROSHI
IPC分类号： E21B3/02 , E21B11/00

10. 发明专利

JPH07150880A MUD WATER SPLASHING PREVENTING DEVICE FOR SWIVEL JOINT FOR EARTH DRILL 失效
公开(公告)号：JPH07150880A
公开(公告)日：1995-06-13
申请号：JP31892293
申请日：1993-11-25
申请人： HITACHI CONSTRUCTION MACHINERY
发明人： KUSUMI HIROSHI , AJIRO SHUICHI
IPC分类号： E21B12/06 , E21B11/00 , E21B17/05
摘要： PURPOSE:To provide a cylinder cover, wherein a wire rope is not damaged even when a kelly-bar is mounted on a ground and the kelly-bar is pulled up, as a mud water splashing preventing device operated by rotation of a swivel joint when the wire rope is pulled up again after a bucket seats a ground, in an earth drill. CONSTITUTION:A cover 12A is removable and the height of the cover 12A is set to a value higher than the level of a swivel joint 7 when a kelly-bar 4 is contracted. The cover 12A is formed of a elastic material, such as rubber. When, after the cover 12A is attached to the upper end of an outer kelly-bar 18, the kelly-bar 4 is pulled up by winding a wire rope 2, the cover 12A is deformed and the wire rope 2 is not damaged.

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