| 摘要 |
PCT No. PCT/EP86/00383 Sec. 371 Date Mar. 2, 1987 Sec. 102(e) Date Mar. 2, 1987 PCT Filed Jun. 28, 1986 PCT Pub. No. WO87/00673 PCT Pub. Date Jan. 29, 1987.With vertical playback decks there is a risk that, when the pressure arm is released in the stop mode, the expensive and fragile compact disc may fall out. This risk is overcome by designing the centering piece with a groove arranged in front of the centering diameter and by the provision, at the front end of the centering piece and at the rear wall of the groove, of a bevel edge of about 45 DEG and, at the front wall of the groove, of a bevel edge of between 5 DEG and 10 DEG .
|
