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1. 发明专利

JP2000204874A EXCAVATOR 失效
公开(公告)号：JP2000204874A
公开(公告)日：2000-07-25
申请号：JP743699
申请日：1999-01-14
申请人： KOMATSU MFG CO LTD , TOKYU KENSETSU KK
发明人： OOTANI MICHIHIRO , KATSUNUMA KIYOSHI , MITSUNAGA JUNICHI , YANAGIHARA YOSHITAKA , MASUBUCHI HIDEYUKI
IPC分类号： E21B7/20 , E21D1/06
摘要： PROBLEM TO BE SOLVED: To provide an excavator capable of excavating a large hole deeply by a main excavator after a small hole is excavated by a preceding excavator and also recovered by pulling it up without being interfered with protective materials for the large hole. SOLUTION: A casing 11 is connected to an auger pipe 6 raised and lowered by a base machine lifter, and an excavating part 12 is provided at the tip part of the casing 11 to form a preceding excavator 10. A main excavator 40 is installed on a slide frame 20 slid along the casing 11, and the casing 11 is lowered deeply into the ground together with the auger pipe 6 so that a large hole can be excavated deeply into the ground by the main excavator 40. The main excavator 40 is installed on an inner peripheral cutter head 41 so that an outer peripheral cutter head 42 can be separated from the inner peripheral cutter head 41, a cutter 43 is installed on each of these cutter heads, and the outer peripheral cutter head 42 is separated from the inner peripheral cutter head. Thus the excavator can be pulled up for recovery without being interfered with protective materials for the large hole.

2. 发明专利

JPH10299372A EXCAVATING DEVICE 失效
公开(公告)号：JPH10299372A
公开(公告)日：1998-11-10
申请号：JP12354397
申请日：1997-04-25
申请人： TOKYU KENSETSU KK , Y B M KK , TOTO DENKI KOGYO KK
发明人： TAKASU MOTOYUKI , FUKUDA SUMIO , YANAGIHARA YOSHITAKA , MASUBUCHI HIDEYUKI , OTSUKA KOICHI , TEJIMA YASUO
IPC分类号： E21B4/10
摘要： PROBLEM TO BE SOLVED: To heighten turning efficiency of a hammer so as to attain excavation of large cross section. SOLUTION: Turning mechanism is composed of a plurality of movable plates 14, 15 fittingly inserted in an intermediate part of a hammer 5, and a moving means for moving the movable plates 14, 15 mutually in orthogonal directions. The movable plates 14, 15 are provided with oblong holes respectively facing the orthogonal directions to the moving directions of the movable plates 14, 15, and turning force along the sectional form of a casing 2 is imparted to the hammer 5 by the moving operation of the movable plates 14, 15.

3. 发明专利

JP2000233818A CONVEYANCE METHOD AND DEVICE FOR OBJECT TO BE CONVEYED 失效
公开(公告)号：JP2000233818A
公开(公告)日：2000-08-29
申请号：JP3834199
申请日：1999-02-17
申请人： TOKYU KENSETSU KK
发明人： MITSUNAGA JUNICHI , YANAGIHARA YOSHITAKA , MASUBUCHI HIDEYUKI
IPC分类号： B65G53/30 , B65G33/14 , B65G53/24
摘要： PROBLEM TO BE SOLVED: To provide a conveyance technique capable of efficiently conveying a wide variety of conveyance objects, without being affected by viscosity. SOLUTION: A screw auger 4 is pivotally housed inside an auger casing 1, having an intake 2 and an exhaust 3 formed on both ends. A negative pressure generating source 10 is connected to the exhaust part 3 which communicates with a helical space inside the casing 1. Both force of an extrusion force due to frictional force between vanes 6 of the screw auger 4 and a negative pressure suction causes force to act over the entire length of the helical space inside the auger casing 1 acts on a object to be conveyed and conveys it.

4. 发明专利

JPH10265179A TRACTION ASSISTING DEVICE FOR MOVING BODY 失效
公开(公告)号：JPH10265179A
公开(公告)日：1998-10-06
申请号：JP8588397
申请日：1997-03-19
申请人： TOKYU KENSETSU KK
发明人： HIROSE SHIGEO , TAKASU MOTOYUKI , MASUBUCHI HIDEYUKI
IPC分类号： B66D1/40 , B66D3/00
摘要： PROBLEM TO BE SOLVED: To control tension of a wire in such a manner as to cancel the gravity applied to a mover to enable the same work and movement as those on the horizontal surface even on an inclined surface by stretching a wire from a support point provided on the upside of the inclined surface to the mover, and always generating tension enough for cancelling the drop force of the mover in the wire. SOLUTION: A mover 1 moved on an inclined surface 6 is supported in such a manner as to always follow up a wire 2 supported on a support point 4 on the upside of the inclined surface without sag, and in case of emergency, the wire 2 is manually delivered to instantaneously lock the mover, whereby a safety device without shock is constructed. Simultaneously the tractive force of the wire 2 is adjusted to be balanced with the inclined surface drop force of the mover 1, so that the movement on the inclined surface 6 of the mover 1 can be facilitated, and even on the inclined surface 6, the same work efficiency as that on the horizontal surface can be given. According to the content of work, the control for the wire 2 is the position control, and the control for fixing the length is introduced so as to perform correct positioning on the inclined surface 6 and construct a scaffold for static work.

5. 发明专利

JP2000213900A BLASTING METHOD 失效
公开(公告)号：JP2000213900A
公开(公告)日：2000-08-02
申请号：JP1591299
申请日：1999-01-25
申请人： TOKYU KENSETSU KK
发明人： MITSUNAGA JUNICHI , YANAGIHARA YOSHITAKA , MASUBUCHI HIDEYUKI
IPC分类号： F42D1/02 , F42D3/00
摘要： PROBLEM TO BE SOLVED: To obtain sufficient explosion effect and to reduce blasting energy being transferred to the surrounding by punching a required number of explosion holes from the peripheral surface of an object to be broken at the outer periphery of a core hole and loading explosive into the explosion hole for exploding. SOLUTION: A core hole 2 is excavated at an exploded part 1, and a sufficient free surface 1 for improving the efficiency of blasting is composed by the inner-periphery surface of the core hole 2 and that of a remaining outer- periphery part 12. Also, at the outer-periphery part 12, a required number of explosion holes 3 are punched from the peripheral surface, and required explosive is loaded into the excavated explosion holes 3. Explosives such as dynamite being used for the publicly known blasting method are used. Also, since the exploded part 1 has a sufficient free surface 11, sufficient blasting can be made with much less amount also for the amount of explosives to be used as compared with a method for blasting an entire section by blasting, thus reducing blasting energy to be transferred to a peripheral part and fully clearing an allowable vibration value to surrounding houses and the like.

6. 发明专利

JPH10299371A EXCAVATION DEVICE 失效
公开(公告)号：JPH10299371A
公开(公告)日：1998-11-10
申请号：JP12354197
申请日：1997-04-25
申请人： TOKYU KENSETSU KK , Y B M KK , TOTO DENKI KOGYO KK
发明人： TAKASU MOTOYUKI , FUKUDA SUMIO , YANAGIHARA YOSHITAKA , MASUBUCHI HIDEYUKI , IWASAKI KEIJI , OTSUKA KOICHI
IPC分类号： E21B4/10
摘要： PROBLEM TO BE SOLVED: To improve the execution by inserting a hammer to turn an eccentric plate housed in a casing, and rotating an excavation bit at a lower end of the hammer. SOLUTION: An excavation device 1 comprises a casing 2, a rotary shaft 3, a hammer 4 and a rotational force transmission mechanism 5. In the execution, the casing 2 is arranged on a rock to be excavated, the compressed air is intermittently fed to give the striking force to an excavation bit 6, the shaft 3 is turned to give the rotational force to the excavation bit 6, and the rock is excavated by the bit 6. An eccentric plate 53 is turned through the rotational force transmission mechanism 5 to be interlocked with the rotation of the shaft 3, the hammer 4 is rotated around a base end part through a hammer sub 41, the bit 6 is rotated within the casing 2, and the rock below the casing 2 is excavated in a circular shape. A hard rock layer can be efficiently excavated, the excavation device can be miniaturized and reduced in weight, a weight lifting machine such as a crane can be miniaturized, and the hammer can be operated with small amount of air.

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