Tape guide means for recording and/or reproducing apparatus and

Details Tape guide means for recording and/or reproducing apparatus and Tape guide means for recording and/or reproducing apparatus and

1978-09-07

1980-10-21

McCarthy, Edward J.

Advancing material of indeterminate length

Passive guide

242157R, 242 76, B65H 2304, B65H 2700

Patent

active

042289408

ABSTRACT:
A tape guide pin for recording and/or reproducing apparatus includes a base body made of non-magnetic material; and a surface layer formed on the base body, made of non-magnetic hard material, the surface layer having the surface roughness whose microscopic tips are rounded. A method of manufacturing the tape guide pin for recording and/or reproducing apparatus includes the steps of: forming a base body of non-magnetic material; forming a surface layer of non-magnetic hard material on the base body; subjecting the base body and/or the surface layer to surface treatment for dimensional accuracy of circumferential surface; and fine-finishing for rounding the microscopic tips of the surface roughness formed by the surface treatment for dimensional accuracy.

REFERENCES:
patent: 3787229 (1979-01-01), Rudness
patent: 3799422 (1974-03-01), Matsumoto
patent: 3843035 (1974-10-01), Fitterer
patent: 4062484 (1977-12-01), Rausch

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