| 摘要 |
PURPOSE: A finger block for coupling bridges is provided to manufacture easily and to change the structure in various shapes easily. CONSTITUTION: The finger block for coupling bridges comprises the steps of fixing many primary bearing pieces(210) formed in the square plate and many secondary bearing pieces(220) which are shorter than the primary bearing pieces(210) relatively to assembling bars(231,232) in order, fitting secondary bearing pieces(220) between joints(211) which form one ends of the primary bearing pieces(210), projecting finger units(212) which forms the other ends of the primary bearing pieces(210) longitudinally from the secondary bearing pieces(220), forming finger fitting grooves between finger units(212), forming fastening holes(240) which penetrate joints(211) and secondary bearing pieces(220) vertically, and forming the width(W1) of the primary bearing piece(210) to be narrower than the width(W2) of the secondary bearing piece(220).
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