| 摘要 |
<P>PROBLEM TO BE SOLVED: To constitute detent means by a configuration different from before in a clamp for a temporary base to be connected to a sleeper so as to hold the sleeper. <P>SOLUTION: Of a bolt 4A and a nut 4B for connecting an upper side clamp member 2 and a lower side clamp member 3 to generate clamp force, the nut 4B comprises a high nut, and a fitting hole 2M to which the nut 4B is to be fitted is provided on a lower surface plate 2F of the upper side clamp member 2. Thus, even when the bolt 4A is tightened, the relative rotational displacement of the upper side clamp member 2 to the lower side clamp member 3 is regulated. Thus, since axial force is generated in the bolt 4A and force (clamp force) for clamping a sleeper S is generated at the upper side clamp member 2 and the lower side clamp member 3, the positions of the upper side clamp member 2 and the lower side clamp member 3 are not largely shifted relative to the sleeper S, and a clamp 1 is strongly clamped to the sleeper S. <P>COPYRIGHT: (C)2012,JPO&INPIT |
