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    • 5. 发明专利
    • POSITIONING JIG FOR STEEL FRAME COLUMN
    • JPH07109840A
    • 1995-04-25
    • JP25830693
    • 1993-10-15
    • HITACHI SHIPBUILDING ENG COOHBAYASHI CORP
    • KAWAHARA TAKANORIONO HIDEO
    • E04G21/16E04G21/18
    • PURPOSE:To make straightness of both members accurately coincide with each other at a time point of hanging work by fitting four L-shape positioning plates to upper edge corner angle parts of an existing hollow steel frame column having a rectangular cross section, and arranging rotatable guide rollers on upper surfaces of the plates. CONSTITUTION:Positioning jigs 2 are in advance arranged on an upper edge of an existing steel frame column 1. A hung steel frame column 1 is guided for approximate positioning and is hung down at a time point when a bottom corner angle part thereof abuts against an inner side than a radius of any of guide rollers 6. Next, while the guide roller 6 is rotated, an outside part of the steel frame column 1 is lowering-guided in the peripheral direction. In a final state, four corner angle parts abut against peripheral stnrfaces of all the guide rollers 6 for positioning and the column 1 is installed on an existing steel frame column 1. Accordingly, workhours from hanging to installation can be remarkably decreased without the use of labor and a mechanical means for position correction.
    • 9. 发明专利
    • MARTIAL ART COMPETITION FACILITY
    • JPH11117557A
    • 1999-04-27
    • JP27717297
    • 1997-10-09
    • HITACHI SHIPBUILDING ENG COMIZUNO KK
    • SAITO SHUZOYAMANAKA SHOHEIKAWAHARA TAKANORIISOHATA MASATOSHIINOUE KOZOMASAI SHIGETO
    • A63B69/00E04H3/14
    • PROBLEM TO BE SOLVED: To easily move each competition face up to an arbitrary position to mutually be connected so as to set a sports ground and enable laminating and housing by dividing the sports ground into four and floating each competi tion face by air jetting pressure. SOLUTION: A martial art competition facility divides a sports ground 2 into four, a plurality of tatami mats are laid on a frame to constitute each competition face 2a, a housing facility is provided in a pit formed on the lower part of the floor face of the warehouse of a gymnasium, plural laminating is performed by a lifting device, and housing and taking-out are enabled. An air jetting mechanism is provided on the lower face of the competition face 2a, a battery, a blower and the like are mounted, a carrying device 3 having a hand push lever is connected to the frame of the competition face 2a to supply the air, the competition face 2a is floated by air jetting pressure, the carrying device 3 is pushed to move the competition face 2a to a desired position, and the competition faces 2a are mutually connected by a connection part provided on the frame to set the sports ground. Thus, the sports ground 2 is easily set at an arbitrary position, and removal can be easily performed.