Spool for video cassette

Details Spool for video cassette Spool for video cassette

1982-08-09

1984-09-25

Christian, Leonard D.

Winding, tensioning, or guiding

Strand tensioning device

Tortuous course

242 718, 242199, G03B 104, G11B 1532, B65H 7518

Patent

active

044731981

ABSTRACT:
This invention relates to a spool for video cassettes comprising at least one flange which is raised from or deposited onto the base of the cassette against the force of a spring. The spool has a hollow-cylindrical projection (11) which is open to the outside, in the center of the top of the spool hub, in which projection (11) a spherical body (12) of abrasion-proof plastics material is clamped, for example, polyoxymethylene. The spherical cap protruding from the projection protrudes beyond other pins (10) which are optionally moulded on the surface. The spool itself is made of a different, plastics material of less hardness compared with that of the spherical body.

REFERENCES:
patent: 3869099 (1975-03-01), Inaga
patent: 4234137 (1980-11-01), Watanabe et al.

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