PROBLEM TO BE SOLVED: To facilitate a fixation release operation for a rotary fence and avoid a situation that a fixation release operation is performed inadvertently at the same time.SOLUTION: A lock structure of a rotary fence includes a control lever 3 for performing a fixation operation and a fixation release operation for a rotary fence 2 with respect to a fixed fence 1, and a lock lever 4 for regulating an operation of the control lever 3. The direction of the release operation of the regulation in the lock lever 4 is opposite to the direction of the fixation release operation of the rotary fence in the control lever 3.COPYRIGHT: (C)2014,JPO&INPIT【課題】回転柵の固定解除を容易に行うことができると同時に、不用意に固定解除を行ってしまう事態を避ける。【解決手段】固定柵1に対する回転柵2の固定操作及び固定解除操作のための操作レバー3と、操作レバー3の操作を規制するロックレバー4とを備える。ロックレバー4における上記規制の解除操作方向が、操作レバー3における回転柵の固定解除操作方向と逆方向となっている。【選択図】図1
