| 摘要 |
1,186,338. Adapters for automatic disc record-players. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 23 May, 1968 [2 June, 1967], No. 24752/68. Heading G5R. An adapter for use with a record-player spindle of the kind having a shoulder and a trigger arm comprises a body having an offset portion forming a shoulder, a bore, and a horizontally-displaceable actuating member in the body, the inner end of the actuating member having a vertical portion and, above and below the vertical portion, inclined portions to facilitate application and removal of the adapter; the lowermost of the portions referred to is received on the shoulder of the spindle when the adapter is in use. When the adapter 5, Figs. 1 and 3, is slid on to the spindle 2 of the automatic changer, the upper end of the spindle 2 encounters an inclined portion 8d, Figs. 3 and 4, of the actuating member 8 and thereby pushes the member 8 sideways, the force of spring 9 being overcome. When the adapter has come to rest on top of spindle 2, the member 8 resumes its normal position as shown in full lines in Fig. 4. When the adapter is withdrawn again, the part of spindle 2 above its shoulder 2a encounters another inclined portion 8c of the actuating member 8, thereby pushing it sideways temporarily. In use, records are stacked on a shoulder 12 and retained by a record holder (not shown) located on top of the stack. The lowermost record is released, when appropriate, by conventional actuation, to the right of a trigger arm 3, Fig. 4, located in the spindle 2. The trigger arm pushes actuating member 8 to the right against the force of spring 9 so that the flat tongue 8a pushes the lowermost record off the shoulder 12. The right-hand position of parts 3, 8 and 9 is shown in broken lines in Fig. 4. Preferably a groove 7 is provided at one side of the bore 6 in the adapter 5; this groove accommodates the trigger arm 3 and record keeper 4 of the spindle 2, Fig. 1, and serves to locate the adapter angularly on the spindle. |
