| 摘要 |
PROBLEM TO BE SOLVED: To cause engaging members replacing with a nut to be easily operated from a near side of an object not requiring any nut at the opposite side of the object. ! SOLUTION: This clamp 11 of this invention comprises a bolt 12 inserted into and passed through through-holes 5 of objects 1, 2; a nut 13 engaged in thread with the bolt 12; a rod 16 passing through the bolt 12; a fulcrum shaft 24 engaged in thread with the lower end part of the rod 16; a pair of engaging pieces 28 that can be opened or closed between a fitted or removed position where it can pass through the through-holes 5 and an engaged position where it is engaged with the object 2; and a spring 32 biasing the engaging pieces 28 toward the fitted or removed position. The bolt 12 is provided with cams 34. A knob 15 is turned to pull up the rod 16, the engaging pieces 28 are opened by the cams 34 from the fitted or removed position toward the engaged position, the nut 13 is fastened to fasten the objects 1, 2 between the nut 13 |
