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1. 发明专利

JPH0913896A AUTOMATIC ADJUSTING AND JOINTING DEVICE FOR TRAILING REAR TRUCK ON CURVED SECTION IN SHIELD CONSTRUCTION METHOD 失效
公开(公告)号：JPH0913896A
公开(公告)日：1997-01-14
申请号：JP16166495
申请日：1995-06-28
申请人： KAJIMA CORP , SUGAGUMI KOJI KK , AKUTEIO KK
发明人： KAMIJO KENICHI , KANEKO TADAAKI , YAMAGUCHI SADAO , ITO TAIJI , MIURA RYOICHI
IPC分类号： E21D11/40 , E21D9/06 , E21F13/02
摘要： PURPOSE: To automatically absorb a tread difference between outer and inner wheels, and ensure a smooth travel by opening a relief valve for releasing hydraulic fluid from a front or a rear oil chamber for expanding or contracting a hydraulic cylinder, when a rear truck travels along curved rails. CONSTITUTION: When a rear truck travels on curved rails (curved left), a traction force (i.e., pressing force) acts on a hydraulic cylinder 10, due to a tread difference between inner and outer wheels, and a front oil chamber A (rear oil chamber B) acts as the compression side, thereby raising hydraulic pressure. In addition, when this hydraulic pressure exceeds an ordinary level at a traction process, a relief valve 13 (23a) opens, thereby discharging hydraulic fluid in the chamber A (chamber B) to tanks 14 and 14 via a front oil chamber relief circuit L2 (rear oil chamber relief circuit L4). As a result, the cylinder 10 expands (contracts) for absorbing a traction difference between inner and outer wheels. At the same time, the chamber B (chamber A) is fed with hydraulic fluid from the tank 14 through a rear oil chamber supply circuit 3 (front oil chamber supply circuit L1).

2. 发明专利

JPH05288370A 失效
公开(公告)号：JPH05288370A
公开(公告)日：1993-11-02
申请号：JP11305492
申请日：1992-04-06
申请人： AKUTEIO KK , RIYUUKI ENG KK
发明人： KONUMA MITSUO , NISHIMURA AKIRA
IPC分类号： E21F3/00 , F24F5/00
摘要： PURPOSE:To effectively cool and ventilate a local space in a tunnel by utilizing negative heat potential of mud to be fed out of the tunnel to an excavating machine and to be used for excavating a face. CONSTITUTION:Primary coolant 11 to be fed from a coolant unit 7 into a coolant cooler 8 is heat exchanged with mud 9 passed through the cooler 8 and negative heat potential of the mud 9 to be cooled during operating of an excavating machine 2. Secondary coolant 14 to be fed from a fan coil 6 to the unit 7 is heat exchanged with coolant made in the unit 7 to be cooled, and then fed into the coil 6. A face - a following truck 3 in a tunnel are cooled by high temperature and high humidity air sucked by the use of a fun 5 from a space in the vicinity into the coil 6 to be heat exchanged with the coolant 14, and simultaneously dehumidified and diffused. Thus, a tunnel cooling ventilation system can be established.

3. 发明专利

JPH107398A SAFETY DEVICE IN WORK TABLE IN HIGH LIFT WORK VEHICLE 失效
公开(公告)号：JPH107398A
公开(公告)日：1998-01-13
申请号：JP15932196
申请日：1996-06-20
申请人： TAISEI CORP , AKUTEIO KK
发明人： UCHIYAMA HIDEAKI , NONOMIYA IZUMI , IGARASHI KOICHI
IPC分类号： B66F9/24 , B66F11/04
摘要： PROBLEM TO BE SOLVED: To obtain a safety device which is not an obstacle to high lift work by providing a detecting means for detecting contact with an object in all directions on the upper outside surface of a work table, and stopping the work table according to the operation of the detecting means. SOLUTION: When a safety device 10 fitted to a work table 57 comes into contact with a high lift object Z, a limit switch is operated, the close condition is switched to the normal open condition, and an emergency stop switch in an upper console box provided on the work table 57 is turned on. A stop switch in a lower console box is turned on to cut off the current application between a relay board and a valve control unit, so that an engine of a high lift work vehicle 50 is also stopped. Hydraulic oil from a hydraulic pump and an emergency pump is returned to an oil reservoir, and with a rotating motor, a derrick cylinder 54, an expansible cylinder and a running motor held in the stop position, the work table 57 is stopped. Thus, a physical accident can be prevented.

4. 发明专利

JP2891329B2 失效
公开(公告)号：JP2891329B2
公开(公告)日：1999-05-17
申请号：JP16166495
申请日：1995-06-28
申请人： KAJIMA KENSETSU KK , SUGATETSUKU KK , AKUTEIO KK
发明人： KAMIJO KENICHI , KANEKO TADAAKI , YAMAGUCHI SADAO , ITO TAIJI , MIURA RYOICHI
IPC分类号： E21D11/40 , E21D9/06 , E21F13/02

5. 发明专利

JP2588459B2 失效
公开(公告)号：JP2588459B2
公开(公告)日：1997-03-05
申请号：JP11305492
申请日：1992-04-06
申请人： AKUTEIO KK , RYUKI ENJINIARINGU KK
发明人： KONUMA MITSUO , NISHIMURA AKIRA
IPC分类号： E21F3/00 , F24F5/00

6. 发明专利

JPH0882387A LAYING METHOD AND LAYING DEVICE FOR PIPE 失效
公开(公告)号：JPH0882387A
公开(公告)日：1996-03-26
申请号：JP24181294
申请日：1994-09-09
申请人： AKUTEIO KK , NIPPON GIJUTSU CENTER KK
发明人： MIURA RYOICHI , TAKENAKA MASAYUKI , UEDA RYOJI , KONO KOYO , TAKATANI MITSUO
IPC分类号： F16L1/00
摘要： PURPOSE: To facilitate laying work containing centering when a water supply pipe and a mud discharge pipe for extension is connected and to save labor by a method wherein the front part and the rear part of the pipe for extension are held by two pipe supports of a front pipe support and a rear pipe support, both suspended from above and each having a part making contact with the under surface of the pipe and formed into a V-shape. CONSTITUTION: Two pipe supports of a front pipe support and a rear pipe support, both suspended from above are provided for holding the front part and the rear part of a pipe 1B for extension. Each pipe support consists of a pair of right and left pipe support levers 60; and a triangular pillow 61 fixed to a lower end and a part making contact with the under surface of the pipe 1B is formed into a V-shape. The pipe 1 is held by the two pipe supports and suspended approximately horizontally and longitudinally oscillatorily and lowered in front of an existing pipe. When the lower end of the pipe 1B for extension is slightly lowered from the upper end of the existing pipe, by moving a shift truck 35 above the pipe support to the existing pipe side, the rear end face of the pipe 1B for extension is brought into contact with the front end face of the existing pipe 1A to carry out connection work for the two pipes.

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