REVERSE COMPRESSION ANCHOR CLAMP

摘要

PROBLEM TO BE SOLVED: To completely arrest torsional rotation of a clevis and thus eliminate the risk of dropping during work by forming the base of the clevis, so that the base has non-circular cross sections, and securing a detent cap with a noncircular cross-sectional hole corresponding to the cross-sectional shape of the base at the entrance to the center hole in the body of a clamp. SOLUTION: A base 4c of a clevis 4 to be inserted into a central hole having circular cross sections is so formed that the base has non-circular cross section and flat ground faces 4d, opposite each other in the direction of the diameter, on its periphery. At the entrance to the central hole, a detent cap 12 with a hole 11, having noncircular cross sections corresponding to the crosssectional shape of the base 4c formed at its central portion is secured. When the cylindrical portion of the body 3 of a clamp is deformed reverse-compressively the rotation of the clevis 4 is prevented by engagement between the hole 11 having a noncircular cross sections and the base 4c. Thus, the positioning of the clevis 4 in the direction of the rotation is stabilized, and untwisting of an anchor wire twisted on the anchor head 4b of the clevis 4, so-called 'kinking', is prevented. In addition, the possibility that the detent cap 12 is dropped off during compression work is eliminated.