| 摘要 |
PURPOSE:To provide an adapter of supporting bar for movement which can fix a bar surely in an easy operation by making a cam having the shape of a round which is partly cut in the edge part to open and close a slit which opens from a fragment to another fragment through a surrounding face in a supporting bar's fixing hole when operating a handle. CONSTITUTION:A supporting bar fixing part 3 is attached to the inside of an attachment base 1 so that a hole 7 for fixing a supporting bar is in the same axis of a hole 2 passing through the supporting bar in the attachment base 1, and fixed by a vis set pivotally at a vis hole 9. A cam 15 is fastened at a base of handle 14. The edge part of a round plate of the cam 15 is straight cut to make a flat area 15a. When the handle 14 rotates downward, a round area 15b of the cam 15 turns along a front of the attachment base 1 and stops and a stopper 13 is pulled toward the attachment base 1, so that a inner part 5 moves to the base, a width of slit 4a becomes smaller and the hole 7 for fixing the supporting bar also becomes smaller. |
