Switching unit for magnetic tape recorder providing double function - of sensor and tape cassette ejector in which index wheel has signal tracks and cam track for ejector operation.

摘要

The magnetic tape recording and playback system has a switching unit that combines the double function of being a sensor and a cassette ejector function. The unit has a sensor wheel (20) that is mounted (40) onto a circuit plate (10) that has tracks (10a) for functions and these terminate in leads (12). Also mounted on the circuit plate is an ejector lever (30) element. The ejector element has a follower pin (31) that engages with cam slots formed in the surface of the wheel. Rotation of the wheel causes the ejector arm to be displaced. At the same time signals are generated via the tracks. USE/ADVANTAGE - Simple means of combining functions.