Memory cassette holding apparatus
AssigneeFanuc Corporation
InventorsHidetsugu Komiya, Seiichi Hattori
Life of this patent
Estimating the term…
Abstract
An apparatus for holding a memory cassette in a cassette adapter wherein the memory cassette cannot be ejected from the adapter, even by pressing an eject button, while data is being written into or read from the memory cassette. Provided are means for generating a signal indicating that a read or write operation is in progress, a locking mechanism for locking a cassette ejecting mechanism to render the latter inoperable, and a drive circuit responsive to the generated signal for actuating the locking mechanism to prevent ejection of the memory cassette until the read or write operation is completed.
Claims6
An apparatus having a holder for holding a memory cassette so that data may be written into or read from the memory cassette, comprising:
- (a) ejecting means for ejecting the memory cassette, the ejecting means having a rotatable lever and a rack coupled to the lever for being displaced thereby when said lever is rotated, said rack being adapted to eject the memory cassette from the holder when displaced in a prescribed direction by rotation of said lever, and
- (b) locking means for selectively locking the ejecting means, the locking means having a magnet coil, an armature displaced by excitation of the magnet coil and a locking rod mechanically coupled to the armature for being moved thereby, said magnet coil being excited while data is being written into the memory cassette or read from the memory cassette, whereby said locking rod is moved by said armature to lock said lever against rotation, thereby preventing said ejecting means from ejecting the memory cassette before the writing of data into the memory cassette or the reading of data from the memory cassette has been completed.
An apparatus for holding a memory cassette so that data may be written into or read from the memory cassette, comprising:
- (a) a holder for holding the memory cassette;
- (b) ejecting means for ejecting the memory cassette from said holder;
- (c) locking means for locking said ejecting means to prevent ejection of the memory cassette from said holder;
- and
- (d) circuit means for actuating said locking means in response to a signal generated while data is being written into the memory cassette or read from the memory cassette, whereby said locking means prevents said ejecting means from ejecting the memory cassette from said holder before the writing of data into the memory cassette or the reading of data from the memory cassette has been completed.
Dependencies are inferred from the claim text.