VERTICAL DIRECTION INVERSION METHOD FOR LENGTHY CONCRETE U-GROOVE AND LENGTHY CONCRETE U-GROOVE DEDICATED CLAMP FOR THE METHOD

摘要

PURPOSE:To easily reverse a U-groove without damaging it by clamping side wall portions on both ends of the U-groove and reversing it around an axis centering the center of gravity when conveying the length concrete U-groove used ford civil engineering works. CONSTITUTION:A pair of holders 7 supporting both ends of a lengthy concrete U-groove 2 with a hanging means are relatively rotatably fitted to a clamp main body 8, a pair of clamping means 12 clamping both ends of the U-groove 2 are provided on the clamp main body 8. Each clamping means 12 is constituted of a pair of clampers 12A clamping the side wall portion 2A and a driving mechanism of the clampers 12A. Both the right and left side walls 2A of the U-groove 2 in the upward state are clamped by a lengthy concrete U-groove dedicated clamp 1 with such constitution, this U-groove 2 is revolved centering the center of gravity, and the vertical direction is reversed. The driving mechanism for the clamping operation can simply perform the clamping by the handle operation combined with a handle 12a and a a bevel gear.