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US 5,180,116 AGranted
Tape cassette reel having a wing-type upper flange
AssigneeSony Corporation
InventorsKiyoshi Urayama, Masanori Sato
Life of this patent
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Abstract
A tape cassette reel includes a reel hub integrally formed with a wing shaped upper flange and a disc shaped lower flange by means of a molding apparatus having one or more sliding cores operable between upper and lower molds.
Claims1
A tape cassette reel comprising:
- a reel hub;
- an upper flange having a single pair of opposed fan-shaped portions;
- and
- a lower flange having a disk-shaped configuration, wherein the upper and lower flanges are unitarily molded with the reel hub, wherein the single pair of opposed fan-shaped portions are asymmetrically aligned with respect to a hypothetical line across the diameter of the lower flange.
1 more element
Dependencies are inferred from the claim text.