| 摘要 |
A record changer for phonograph records is fully automated for playing a plurality of records but uses a relatively small number of parts. The record changer includes a rotatable turntable, a spindle for holding a stack of records above the turntable, a tone arm assembly for playing the records, and a changer mechanism which is operably connected with the spindle and the tone arm assembly. The changer mechanism includes a cam wheel which is rotatable by the turntable when the record changer is started and after each record has been played, and a slide arm connected to the cam wheel for moving the tone arm to a start position. When the last record has been played, stop members movable by the cam wheel turn the unit off. The tone arm assembly includes a friction clutch which cooperates with a record size indicator mechanism to move the tone arm to the proper start position depending upon the size of the records being played. |
