| 摘要 |
PROBLEM TO BE SOLVED: To provide a prefabricated timbering device allowing easy mounting and demounting work for braces without prohibiting the braces and brace mounting pieces therefrom, achieving a stable mounting condition and strong resistance to outer force, having strength and rigidity as a whole, allowing easy assembling and disassembling work with easy handling and superior workability and safety into a firm and stable assembled condition, and offering simple construction superior in durability, adequate for mass-production, lighter and profitable. SOLUTION: The prefabricated timbering device comprises base frames 1, main frames 10, connection bars 30, and the braces 20. The base frame 1, the main frame 10 and the connection bar 30 have brace mounting pieces 5, 15, 35, respectively. The brace 20 has a fixed locking protrusion 22 and a movable locking protrusion 23. The movable locking protrusion 23 is formed slidable and rotatable. The fixed locking protrusion 22 and the movable locking protrusion 23 can be detachably locked to brace mounting holes 6, 16, 36 of the brace mounting pieces 5, 15, 35. COPYRIGHT: (C)2005,JPO&NCIPI
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