| 摘要 |
PROBLEM TO BE SOLVED: To improve operability of a lock mechanism and to stably inhibit rotation of rotary bodies.SOLUTION: A lock mechanism of rotary bodies includes: a base member 1 having bearing portions 10 for rotary bodies R respectively at the right and left; a lock member 2 rotatably combined with the base member 1 between the right and left bearing portions 10 and 10 of the base member 1 in a state that its rotational center shaft P' is orthogonal to rotational center shafts P of the rotary bodies R; and holding means 3 for positioning the lock member 2 on a pre-rotation position. The lock member 2 has contact portions 23 on symmetric positions through the rotational center shaft P', while being kept into contact with end portions Rb of the right and left rotary bodies R at the pre-rotation position to inhibit the rotation of the rotary bodies R, and the inhibition is released when the lock member 2 is rotated and operated to a prescribed position by releasing the holding by the holding means 3. |
