| 摘要 |
PURPOSE:To maintain the dimension of the titled device high precision by transmitting disconnectable driving force from a mobile body driver to a hooking/shifting mechanism and at the same time shifting a recording disk up to the 1st position with the force of an energizing matter when the driving force is cut off. CONSTITUTION:When a power supply is on, a driving pin is sucked with a compression spring pressed. Thus the driving pin is apart from a contact part, and a pinion gear is actuated upward by the function of a tension spring 53 to match with a rack gear 14c of a rack plate 14. At the same time, a mobile body 9 presses the compression spring 54 at its waiting position. The driving pin is positioned so as to touch the contact part of a housing when necessary. Then the load is selected for the springs 53 and 54 so that the moment around the pin due to the spring 53 is larger than that of the pin 54. |
