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1. 发明专利

JPH1192059A LIFT FOR CONSTRUCTION 失效
公开(公告)号：JPH1192059A
公开(公告)日：1999-04-06
申请号：JP25537197
申请日：1997-09-19
申请人： OHBAYASHI CORP
发明人： OI KENTARO , SHIGEMATSU YASUSHI , KOSUDA TEIJI
IPC分类号： E04G21/16 , B66B9/02 , B66B9/187 , H02P3/18 , H02P6/04 , H02P6/06 , H02P6/08 , H02P6/28
摘要： PROBLEM TO BE SOLVED: To provide a lift for construction in which a large power to drive a motor can be secured for lifting the body of a heavy weight without requiring power receiving facilities requiring troublesome procedures such as application for authrization, and which is also suitable for construction of a multi-stored structure. SOLUTION: In a lift for construction, a rack is provided along length of a vertically standing elevator post 4, and a gear rotation-driven by a drive motor mounted on a lifting elevator 8 is engaged with the rack, so the drive motor 20 is driven to move the lifting elevator 8 to slide along the elevator post 4. A DC brushless motor is used as the drive motor 20, and driving power is supplied from a DC battery source, so a sufficient power can be secured when a large driving power is required by the drive motor 20 compared to a commercial power supply.

2. 发明专利

JPH10121515A HYDRO-FRAISE EXCAVATOR 失效
公开(公告)号：JPH10121515A
公开(公告)日：1998-05-12
申请号：JP27971596
申请日：1996-10-22
申请人： OHBAYASHI CORP
发明人： NAKAMURA TOSHIO , SAJI KENICHIRO , OI KENTARO , MATSUO MASAHARU
IPC分类号： E02F5/02 , E02F5/08
摘要： PROBLEM TO BE SOLVED: To increase the excavating accuracy and efficiency, by providing a pair of handing sheaves rotatably pivotted at both face sides of the upper end of a frame to hang wires and providing a mud pipe at the central position of the upper end of the frame between both sheaves. SOLUTION: A pair of front and rear cutter drums 56 and a pair of right and left cutter drums 56 are arranged at the front end of a vertically long rectangular frame 54. A suction pipe 58 is disposed at the center of the cutter drums 56 and a mud pump 60 is arranged in the frame 54. A mud pipe 62 connected to the mud pump 60 at the lower end and protruded on the frame 54 at the upper end is vertically arranged in the frame 54. The mud pipe is positioned at the center of the frame 54 and protruded to the head 66 of the frame. Hydraulic pipes are collectively arranged at the periphery of the mud pipe 62 to evenly distribute the load to the front and rear and the right and left directions of the excavaing machine body 24.

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