Tape cassette having front surfaces to guide a tape accommodated

Details Tape cassette having front surfaces to guide a tape accommodated Tape cassette having front surfaces to guide a tape accommodated

1990-12-11

1992-10-06

Severin, David J.

Dynamic magnetic information storage or retrieval

Record medium

In container

242199, G11B 2302

Patent

active

051538008

ABSTRACT:
A tape cassette arranged such that coarse surface areas are formed on guide surfaces used to guide a magnetic tape along the external surface of the front side wall portion formed inside of a cassette lid and that the coarse surface areas are gradually reduced toward the seam 19 of upper and lower parts. Thus, when the upper and lower parts are molded, the upper and lower parts can be removed from the metal molds with ease. Also, electrification can be prevented from occurring in the magnetic tape or in the upper and lower parts when the magnetic tape is transported along the guide surfaces.

REFERENCES:
patent: 4748529 (1988-05-01), Shiba et al.
patent: 4754357 (1988-06-01), Nelson
patent: 4766511 (1988-08-01), Miyoshi et al.
patent: 4884159 (1989-11-01), Satoh
patent: 5003425 (1991-03-01), Ozawa

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