| 摘要 |
PURPOSE:To easily control the position of a revolvable monitor holding table and to certainly fix said table, by mounting a fixing mechanism consisting of the insert hole for inserting a lock pin of an arm part, the insert hole of a flange part and the lock pin permitting insertion and pull-off operations which is inserted through the insert holes of booth of the arm part and the flange part to fix the arm part to fix the arm part and brought to a free state by releasing both parts from the inserted state. CONSTITUTION:An oval hole 4c is formed so as to be matched with the operating knob part 6a of a flat lock pin 6 and, therefore, when the operating knob part 6a of the lock pin 6 is rotated by about 90 deg. in a pulled state, the lower side of the operating knob part 6a of the lock pin 6 is hooked with the side edge of the insert hole 4b of an arm part 4 and stops at a drawn-up position. In this state, the arm part 4 is revolved to control the position of a monitor 5. When the position of the monitor 5 is determined, the operating knob part 6a of the lock pin 6 is returned to the original state and the leading end of the lock pin 6 is engaged with the insert hole 3b of a flange part 3a at the revolving position at that time. By this operation, a monitor holding stand is revolvable around the support of the arm part and the fixing of the arm part is performed by inserting the lock in through both insert holes of the flange part and the arm part provided to the support over both parts. |
