Fail-safe locking mechanism for tape cartridge drive with movabl

Details Fail-safe locking mechanism for tape cartridge drive with movabl Fail-safe locking mechanism for tape cartridge drive with movabl

1982-11-26

1986-04-29

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Tape record

360 965, G11B 5008, G11B 1500, G11B 1700

Patent

active

045860955

ABSTRACT:
A tape cartridge drive having a movable read/write head has a fail-safe locking mechanism for preventing removal of the cartridge when the head is in contact with the tape. The tape cartridge has a door on the cartridge housing for opening to expose a portion of the tape prior to moving the head into contact with the tape. The cartridge door has a tripping arm which is rotated for opening the cartridge door. The door of the tape drive has a cam that contacts an interposer latch inside the tape drive housing for rotating the tripping arm to open the cartridge door when the door of the tape drive is closed. A pawl latch locks the door of the tape drive and a head moving mechanism moves the head to its operative position. During the first portion of the head movement, a locking pin is placed behind the interposer latch. This locks the latch in position to prevent the possible ejection of the cartridge while the head is in contact with the tape. If the door to the tape drive is accidentally opened, the locking pin provides a restraining force that keeps the cartridge in place in the housing.

REFERENCES:
patent: 3665114 (1972-05-01), Hathaway
patent: 4130848 (1978-12-01), Amano

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