Winding – tensioning – or guiding – Strand tensioning device – Tortuous course
Patent
1985-10-21
1986-08-19
Jillions, John M.
Winding, tensioning, or guiding
Strand tensioning device
Tortuous course
29434, 264130, 264155, 264156, 264160, 2643281, G11B 1532
Patent
active
046065130
ABSTRACT:
A tape cassette pressure flap and pressure flap/cassette housing assembly and related methods for manufacturing the pressure flap and for assembling the pressure flap in the cassette housing. The pressure flap is substantially flat and made of a flexible material. The flap has a first free end with a low coefficient of friction for normally urging a tape portion into contact with a support member of the cassette housing so as to minimize slackness of the tape, and a second end for being fixedly attached to the cassette housing. A piece is formed at the fixed end to form a flange. The fixed end is then inserted between a pair of walls and the support member formed in the cassette housing. The inserted fixed end of the pressure flap terminates at an area formed by the second wall positioned substantially at an angle to the first wall, so that the pressure flap cannot be pushed out of position relative to the tape upon which it resiliently abuts. The angled flange cut in the fixed end of the pressure flap abuts a columnar supporting member. This pressure flap and pressure flap/cassette housing assembly eliminates slackness and the disadvantages of the prior art adhesive-type and non-adhesive-type pressure flaps. Moreover, it provides a more efficient manufacturing process using a relatively simple stamping, bending and inserting procedure and increased efficiency during automated insertion of the pressure flap into the cassette housing.
REFERENCES:
patent: 3211874 (1964-10-01), Bengtsson
patent: 3764177 (1973-10-01), Woodward
patent: 3797779 (1974-03-01), Esashi et al.
patent: 4032739 (1977-06-01), Nicolaisen et al.
patent: 4290567 (1981-09-01), Saito
patent: 4304374 (1981-12-01), Okamura et al.
patent: 4405097 (1983-09-01), Gebeke
Patent Abstracts of Japan, vol. 5, No. 17, 1/31/81 (p-47) (689), 55-146665.
Gelardi Anthony L.
Gelardi Paul J.
MacLeod, Jr. Robert B.
Jillions John M.
Shape Inc.
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