Shape Corporation

Diane C Pruneau

Anthony L Gelardi

Vincent E Landry

John Gelardi

Alan B Lowry

Richard Rolfe

John Geladri

A tape cassette with a separate, plastic, molded, elongated, tape guide subassembly is described. The tape guide subassembly incorporates two bearing extensions integrally molded at the left and right ends thereof. Each bearing extension is a pair of opposing, parallel, planar members extending from support members, each of which is parallel to the planar top and bottom of the tape guide subassembly. Each planar member includes a roller receiving means integrally formed therein and the rotational axles for the tape rollers are either integrally molded as part of the bearing extension or the tape roller itself. The planar members in each pair have the ability to flex only in the direction perpendicular to their planes, allowing the rollers to be easily snapped into place during assembly. Once the rollers are inserted into the tape guide subassembly, the latter is assembled into the front of the tape cassette, wherein the rollers form part of the central tape support area of the tape cassette. Related methods are also described for manufacturing, including particularly the steps of: forming the tape guide by a one-step injection molding to include a one-piece bridge with left and right ends, each of which includes a bearing extension integrally molded therein, and roller receptacles also integrally molded in each bearing extension; injection molding a one-piece roller having an axle integrally molded therewith whose ends extend from the roller; locating the roller in the roller receptacle for rotation; forming the cassette top half and bottom half to include bearing extension receptacles; and inserting the tape guide subassembly into the tape cassette such that the bearing extensions are received by the bearing extension receptacles.

Methods for manufacturing a tape cassette with separate tape guide

A continuous loop tape cassette for use with an external tape player/recorder apparatus, having a cassette base, a cover and a separate tape guide positioned therebetween. The separate tape guide includes an elongated bridge molded of a low friction plastic and having substantially planar top and bottom surfaces, left and right ends with curved, relatively flat, front surfaces which are slightly slanted relative to the substantially planar top and bottom bridge surfaces, and a flange formed integrally of the front top surface of each end. In addition, locating holes are formed at each left and right end to receive corresponding projections formed on the cassette base and to orient the bridge relative to the tape cassette. Finally, there is provided between the left and right ends a leaf spring having a relatively soft, tape contacting member thereon for exerting a uniform pressure on the running tape as it crosses the magnetic head of the external tape player/recorder apparatus. The curved, relatively flat, front surfaces of the left and right ends, together with the flange and tape contacting member define the tape guiding surface of the tape guide.

Separate tape guide for a continuous loop tape cassette

Tape cassette

A tape cassette for use with an external tape player/recorder apparatus having upper and lower cassette halves and an independent tape guide for insertion between the cassette halves. The independent tape guide is a subassembly comprising an elongated bridge molded of plastic and having a top planar surface, a bottom planar surface, a front, a back, a left end and a right end, two pairs of corner posts located substantially centrally of the front and a plurality of lateral projections extending from the front in relatively perpendicular relation to the planes of the top and bottom of the bridge. Each pair of corner posts has holes formed therein to receive a stainless steel pin therethrough also in perpendicular relation to the planes of the top and bottom of the bridge, which together with the plurality of lateral projections define the tape sliding surface. In addition, there is provided behind the stainless steel pins a flexible leaf spring having a relatively soft facing member thereon for exerting an even pressure on the running tape as it crosses the magnetic head of the external tape player/recorder apparatus.

Tape cassette with separate tape guide

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Saco, ME, United States of America

Diane C Pruneau