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11. 发明专利

JPH10317865A PIT EXCAVATOR 失效
公开(公告)号：JPH10317865A
公开(公告)日：1998-12-02
申请号：JP13380197
申请日：1997-05-23
申请人： HITACHI CONSTRUCTION MACHINERY
发明人： SEKI KAZUHIDE , MURAOKA TADASHI , AIHARA YOSHIHIRO , SHIBA YOSHIMI
IPC分类号： E02F5/20 , E21B3/04 , E21B7/00
摘要： PROBLEM TO BE SOLVED: To excavate a pit having high accuracy by sufficiently utilizing the original excavation capacity of a pit excavator regarding the pit excavator excavating a vertical shaft having comparatively large pit diameter and depth to a ground. SOLUTION: The pit excavator is constituted so as to have a first excavator excavating a leading pit 2 to a ground 1, a guide rod 4 inserted into the leading pit 2 formed by the first excavator and a second excavator 5 being guided by the guide rod 4 and excavating an excavation target pit 3 having a diameter larger than the leading pit 2 to the ground 1. A frame-shaped supporter 8 supporting the second excavator 5, a travelling body, a belt 9, making the frame-shaped supporter 8 travel, a travelling guide means, a rail 10, guiding the travelling of a travelling body so that the second excavator 5 is positioned just above the guide rod 4 and a positioning stop means, a stopper, stopping the travelling of the belt 9 so that the second excavator 5 is placed just above the guide rod 4 are installed at that time.

12. 发明专利

JPH0441752B2 失效
公开(公告)号：JPH0441752B2
公开(公告)日：1992-07-09
申请号：JP20583086
申请日：1986-09-03
申请人： HITACHI CONSTRUCTION MACHINERY
发明人： IIDA TAKEO , AIHARA YOSHIHIRO
IPC分类号： E21B3/00 , E21B3/035 , E21B7/04

13. 发明专利

JP2002346417A WOOD CRUSHING AND STORING DEVICE 失效
公开(公告)号：JP2002346417A
公开(公告)日：2002-12-03
申请号：JP2001159386
申请日：2001-05-28
申请人： HITACHI CONSTRUCTION MACHINERY
发明人： TAWARA MASANORI , AIHARA YOSHIHIRO , MURAOKA TADASHI
IPC分类号： B02C18/22
摘要： PROBLEM TO BE SOLVED: To provide a wood crushing and storing device which can decrease the space for storing crushed wood. SOLUTION: This wood crushing and storing device 1 has a storing room 2 which is almost closed, a front panel 2a which is prepared in the storing room and acts as an open-close door to take out stored material, an opening 6 on the front panel 2a, rotating shafts 9a1 and 9b1 which are mounted mutually almost parallel, and rotating blades 9a2 and 9b2 , equipped on respective rotating shafts 9a1 and 9b1 , a crushing device 9 equipped on the front panel to introduce crushed wood into the storing room while crushing via the opening 6, and a cutting-off door 7 to open and close the opening 6.

14. 发明专利

JP2000234488A EARTH DRILL BUCKET AND EARTH DRILL 失效
公开(公告)号：JP2000234488A
公开(公告)日：2000-08-29
申请号：JP3670699
申请日：1999-02-16
申请人： SUGIZAKI KISO KK , HITACHI CONSTRUCTION MACHINERY
发明人： IMAI KENJI , MURAOKA TADASHI , AIHARA YOSHIHIRO , SHIBA YOSHIMI , HASHIMOTO KENTARO , MURAYAMA TAKASHI
IPC分类号： E21B11/00
摘要： PROBLEM TO BE SOLVED: To certainly open and close an earth take-in port with a rotary plate made to make a relative rotation by rotary movement of a bucket main body by a method wherein the rotary plate with excavation bits fixed thereto is rotatively mounted to a bottom lid of the bucket and the earth take-in port is made capable of being opened and closed. SOLUTION: For an earth drill bucket 1, a cylindrical part 2 is fixed to a cylindrical main body 1a through a radial frame and made capable of moving upward and downward with a guide rod inserted therethrough, bottom lids 6, 6 are rotatively mounted to the main body 1a through pins 5, 5, and earth take-in ports 8, 8 are formed between the bottom lids 6, 6. Then, a rotary plate 9 is rotatively mounted to the underside of the bottom lids 6 through guide grooves 11, and excavation bits 10 are fixed to end parts of the rotary plate 9. With the bucket 1 pressed against the ground and rotated at the time of starting excavation, the rotary plate 9 makes a relative rotation and opens the earth take-in port 8 for taking excavated earth into the bucket 1, and with the bucket 1 rotated in reverse rotation, the rotary plate 9 makes a relative rotation and closes the earth take-in port 8. Therefore, the earth take-in port 8 can be opened and closed certainly.

15. 发明专利

JPH08303169A TECHNIQUE AND EQUIPMENT FOR EXCAVATING PIT 失效
公开(公告)号：JPH08303169A
公开(公告)日：1996-11-19
申请号：JP10746495
申请日：1995-05-01
申请人： HIMENO KK , GAKUNAN KENSETSU KK , CHITOSE DENKI KOGYO KK , SUN TEC KK , YAMAKA DENGIYOU KK , HITACHI CONSTRUCTION MACHINERY
发明人： AIZAWA KAZUO , WASHIMI TAKEO , KUSAKAWA NOBUHIRO , HARI MASANORI , SATO AKIRA , MURAOKA TADASHI , AIHARA YOSHIHIRO
IPC分类号： E21B7/00 , E21B7/28 , E21B11/00 , E21D1/03 , E21D1/06 , E21D3/00 , E21D9/00
摘要： PURPOSE: To inhibit the generation of the center displacement and inclination of an excavator body with excavation operation. CONSTITUTION: A leading pit 6 is excavated to the ground 1 by a first excavator with a rotary table 3 and a down-hole drill 2, a guide rod 7 is inserted into the leading pit 6, and a second excavator 8 having an excavating tool excavating the ground, a fixing means fixing the static section 10 of a main body onto the wall surface of the excavation target pit 7a of the ground 1, and a propulsive means propelling the excavating tool is installed to the guide rod 7. Excavation reaction at the time of pit excavation operation is taken by both the wall surface of the excavation target pit 7a of the ground 1 and the guide rod 7, and pit excavation corresponding to the excavation distance of the propulsive means is repeated until the excavating tool is propelled while being turned and the overall length of the excavation target pit 7a is formed.

16. 发明专利

JPH10305928A MOVING CRANE FOR UNDERGROUND CONSTRUCTION 失效
公开(公告)号：JPH10305928A
公开(公告)日：1998-11-17
申请号：JP11327897
申请日：1997-05-01
申请人： HITACHI CONSTRUCTION MACHINERY
发明人： MURAOKA TADASHI , SEKI KAZUHIDE , AIHARA YOSHIHIRO , SHIBA YOSHIMI , HASHIMOTO KENTARO
IPC分类号： E02F3/46 , B65G67/06 , B65G67/08 , B66C17/06
摘要： PROBLEM TO BE SOLVED: To provide a moving crane for an underground construction which is compact-sized and very mobile and hence effectively discharges soil and carries in construction materials. SOLUTION: This crane has a tower 8 on a moving unit having a crawler or wheels and a winch 11 mounted directly on the tower 8 or via a moving bogie 10. A bucket 14 or a hook is removably provided on the tip of a rope 13 reeled or unreeled by the winch 11. The bucket 14 can be received in the tower 8 by reeling the rope 13. The drive source of the winch 11 and the bucket 14 and the like are provided in the tower 8 and the tower 8 has a sub-frame 8a.

17. 发明专利

JPH10140969A DRILLING APPARATUS 失效
公开(公告)号：JPH10140969A
公开(公告)日：1998-05-26
申请号：JP30042996
申请日：1996-11-12
申请人： HITACHI CONSTRUCTION MACHINERY
发明人： AIHARA YOSHIHIRO , MURAOKA TADASHI
IPC分类号： E02F5/20 , E21D1/06
摘要： PROBLEM TO BE SOLVED: To easily arrange a gondola at a required position above an aimed drilling hole by anyone, in drilling apparatus provided with a gondola used for the works in the aimed drilling hole. SOLUTION: A guide rod 4 is inserted in an advanced hole 2 formed by the first excavating machine. The second excavating machine 5 is guided by the guide rod 4 to excavate an aimed excavating hole with a larger diameter than the advanced hole 2 and the second excavating machine 5 is moved up and down by a winch 7. The gondola 8 is hung by a hanging device 9 and loaded with necessary materials for the works in the hole. A traveling body 7A where the winch 7 is mounted and the hanging device 9 are charged so as to be horizontally transferable on a scaffold device 6. The traveling body 7A is integrally connected to the hanging device 9 through a connection rod 93 and the length of the connection rod 93 is set so that the gondola 8 is positioned right above the aimed excavation hole 3A when the second excavating machine 5 is disposed at a specified soil-discharging position β.

18. 发明专利

JPH10121876A HOLE DRILLING DEVICE 失效
公开(公告)号：JPH10121876A
公开(公告)日：1998-05-12
申请号：JP27483396
申请日：1996-10-17
申请人： HITACHI CONSTRUCTION MACHINERY
发明人： MURAOKA TADASHI , AIHARA YOSHIHIRO
IPC分类号： E21B7/00 , E21D1/06
摘要： PROBLEM TO BE SOLVED: To connect guide rods which are divided in a comparatively short time irrespective of soft or hard soil property of a ground to be drilled. SOLUTION: An excavator 2 which digs a target hole to be digged in a ground 1 includes a stationary part 3 fixed on the ground 1 and a travelling part 5 which moves in the direction in which it leaves the stationary part 3 by a propulsion means 4, and the travelling part 5 is provided with a digging tool including an earth drill bucket 6 and a rotary means 9 which rotates the digging tool. Furthermore, a guide rod inserted into an advance hole of which diameter is set to a smaller diameter than the target hole to be digged consists of a ground guide rod 11 which is embedded in the ground 1 and of which upper end part 11a protrudes on a surface of the ground and an excavator guide rod 12 which is mounted on the excavator 2 and of which a lower end part 12b is connected with the upper end part 11a of the ground guide rod 11 in such a manner that they can be separated and is provided with a pair of pressing cylinders 14 which can fix a position near the upper end part 11a and release the fixation of this position.

19. 发明专利

JPH08166300A MULTI-AXIAL LOAD DETECTOR 失效
公开(公告)号：JPH08166300A
公开(公告)日：1996-06-25
申请号：JP31190094
申请日：1994-12-15
申请人： HITACHI CONSTRUCTION MACHINERY
发明人： KUSAKI TAKAMI , AIHARA YOSHIHIRO
IPC分类号： G01L1/22 , G01L5/16 , G01L19/04
摘要： PURPOSE: To provide a wiring sheet for a multiaxial load detector in which deviation of strain gauge adhering position is not possible and for which a proper resistance for compensation can be used with no need of preparation of a plurality of insulating sheets. CONSTITUTION: A wiring sheet S is composed by putting a wire 2 for bridge circuit constitution, lands 13 at the tip thereof, lands 14 to be connected to resistance wires for compensation of the strain gauges 6, and lands 15 to be connected to resistance wires for temperature compensation of a span on an insulating sheet 11. Respective lands 13-15 are gathered in both end parts 11a, 11b of the insulating sheet 11. After the wiring sheet S is so set in a structural body of a multiaxial load detector as to make both end parts 11a, 11b positioned in the face in conformity with adhesion faces of the strain gauges 6, respective strain gauges 6 are connected to corresponding lands 13. If necessary, proper resistance wires for compensation are connected to the lands 14, 15.

20. 发明专利

JPH06246675A FORCE SENSOR DAMAGE PREVENTING DEVICE FOR FORCE CONTROL ROBOT 失效
公开(公告)号：JPH06246675A
公开(公告)日：1994-09-06
申请号：JP6343393
申请日：1993-02-26
申请人： HITACHI CONSTRUCTION MACHINERY
发明人： SATO KENICHI , YOSHIDA KUNIHIKO , AIHARA YOSHIHIRO , TANI YOSHIO
IPC分类号： B25J19/02 , B25J19/06
摘要： PURPOSE:To prevent early fatigue failure of a force sensor so as to extend its life by detecting vibration applied to a force signal in suitable timing, deciding the vibration normal and abnormal, and taking action of avoiding an abnormal vibration condition when the abnormal vibration is judged. CONSTITUTION:In a force control robot, as a hand point effector, a grinder of mounting a grinding wheel is provided through a force sensor 34 in a part of a robot hand. In the force sensor 34, force consisting of force applied to the grinding wheel 37, that is, contact force with a workpiece and of vibration, when the grinder is in rotary action, is detected to feed this detection signal to a control unit. In this control unit, in a vibration detecting mode, an output signal at racing time of the force sensor 34 is fetched to a vibration detecting means 9, to take out a signal component, related to vibration, from a force signal, and from the output signal, an output signal of each channel is checked by a vibration judging means 10. When a vibratory condition at racing time is judged abnormal, an abnormal vibration preventing means 11 is actuated to avoid abnormal vibration.

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