| 摘要 |
A cartridge locking mechanism for a tape player having a tunnel for receiving a tape cartridge, comprises an actuator arm mounted for movement in the direction of insertion and withdrawal of the cartridge in the tunnel and a plunger mounted for movement into and out of the tunnel in accordance with the movement of the actuator arm for receipt in a groove in the cartridge wall to secure the cartridge in the tunnel. The actuator arm includes a portion extending into the tunnel in the path of the cartridge for engagement therewith. The arm is resiliently biased toward the open end of the tunnel and includes a key-hole shaped aperture therein. The plunger passes through the key-hole aperture and is captured normally in the smaller portion thereof, out of the tunnel. The plunger, being resiliently biased toward the tunnel is prevented from movement thereinto. When a cartridge is inserted into the tunnel, the extension portion of the actuator arm is engaged by the cartridge, moving the actuator arm to align the larger portion of the key-hole aperture with the plunger, permitting the latter to pass therethrough and into the groove in the cartridge wall. Removal of the cartridge forces the plunger out of the groove and permits the actuator arm to spring back to its normal position, recapturing the plunger.
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