| 摘要 |
PURPOSE:To execute a return operation and a repeat operation by a concise mechanism by providing a control plate so as to be slidable forward and backward, and switching an operating lever to a position where it contacts by pressing with a switch lever, and a position where it does not contact by pressing. CONSTITUTION:The control plate 8 is provided to be slidable forward and backward on a sub-panel, and at the time of a musical performance, an engaging part 8b is engaged with projection 5a of a sub-gear. In case of a return operation, the driving plate 4 moves to the right, the projection 5a moves back, the pin 10a of an operating lever 10 presses with the pressing surface 8a of the control plate 8 and turns, a pin 10b moves to a position where it does not press with a switch lever 12, and a tone arm is returned to a return position to be locked. In case of a repeat musical performance, the control plate 8 is moved backward, the pin 10a of the operating lever 10 does not presses with the plate 8, and the pin 10b presses with the lever 12 and is held. Therefore, an automatic musical performance device of a simple mechanism is obtained. |
