Pressure arm assembly for disc recorders
AssigneeSycor, Inc.
InventorMohan P. Vidwans
Life of this patent
Estimating the term…
Abstract
A pressure arm assembly is disclosed for use in a data recorder of the type employing a disc recording medium and a carrier supporting a magnetic head. The pressure arm assembly includes a bracket and an upper arm pivotally carried by the bracket for rotation about a transverse axis. A spring biases the arm into engagement with the head carrier. An automatic release lever is carried by the bracket and holds the upper arm in a first nonoperating position and releases the arm so that it may pivot under the action of the spring upon insertion of a disc into the data recorder.
Claims19
A pressure arm assembly adapted for use in a data recorder of the type including a base, a diskette holder pivotally mounted to the base, a head support assembly carrying at least one head thereon and being adjustably mounted on the recorder to move the head into and out of operation contact with a disc medium positioned within the holder, and drive means engaging the head support for translating the head support and hence the head along the disc medium, said pressure arm assembly comprising:
- a bracket adapted to be secured to the base of the data recorder;
- a pressure arm;
- means for pivotally connecting said pressure arm to said bracket and for permitting a portion of said pressure arm to rotate towards and away from the head support assembly;
- resilient mechancial means for biasing the pressure arm towards the head support assembly;
- and
- a release member carried by the bracket and being movable with respect to said pressure arm, said release member having a first position wherein said release member abuts said pressure arm and holds the pressure arm away from said head support assembly against the bias of said resilient mechanical means, and a second position wherein said release member disengages said pressure arm upon insertion of a diskette into the diskette holder, thereby permitting said resilient mechanical means to move said pressure arm into engagement with the head support assembly and force the head into operative contact with the disc medium.
In a double-sided data recorder of the type having a base, a diskette holder supported on the base in a generally vertical position for limited pivotal movement about a vertical axis, a drive hub for rotating a recording disc insertable within the holder, a pair of magnetic heads mounted on a carrier, means for translating the carrier relative to the holder so that the heads move radially of a recording disc, the carrier including an arm whereby movement of the arm biases both heads into engagement with the disc and the holder being pivotal to a nonoperating position permitting a disc to be inserted therein past the drive hub, the recorder further including improved pressure means for biasing the heads into engagement with the disc, said improved pressure means comprising:
- a support secured to the base immediately adjacent the holder;
- resilient mechanical pressure means carried by the support and movable from a first position to a second position for exerting a pressure on the carrier arm to bias the heads into engagement with the disc;
- and
- automatic mechanical release means carried by the support for holding the pressure means in the first position out of engagement with the carrier arm and for automatically releasing the pressure means for movement to the second position in engagement with the carrier arm upon insertion of a disc into the holder.
Dependencies are inferred from the claim text.