| 摘要 |
PURPOSE:To facilitate the insertion and extraction of a record disk by permitting a main driving part including a player board to move horizontally into and out of a case body, and by enabling the record disk to be inserted into the player board from the front when some part of the main driving part is outside of the case body. CONSTITUTION:A main driving body 2 is in a case body before and during play, and a smoothly planed frame 29 presses the top surface of the upper panel 24 of an arm 20. For the changing of a record disk 6 or play operation, a player board 3 is drawn in as shown by an arrow A and while a roller 12 rolls on a bottom plate 27, the player board 3 slides on the roller 12 to move forth; and the arm 20 also moves forth, so that a guide pin 25 is guided by the slanting edge 32b and horizontal edge 32a of a cam bar 32. Consequently, the arm rotates counterclockwise against a spring 32 and when its guide pin 25 is guided to the horizontal edge 32a, the upper panel 24 enters a gap part 19 to restrict the forward movement of the arm 20 by a roller 31 with a lock edge 20a. |
