Device for controlling pinch roller in cassette tape recorder

Details Device for controlling pinch roller in cassette tape recorder Device for controlling pinch roller in cassette tape recorder

1986-03-26

1987-09-22

Jillions, John M.

Advancing material of indeterminate length

By orbitally traveling material-engaging surface

Comprising rotary pinch pair

226187, 242209, B65H 2040, B65H 2318, G11B 1529, G03B 132

Patent

active

046949836

ABSTRACT:
Disclosed is a pinch roller controlling device in a cassette tape recorder, comprising: a chassis; a pinch roller support plate and a control lever respectively pivotally attached with a first and a second support shaft on the chassis at respective intermediate portions of the pinch roller support plate and the control lever; a capstan shaft supported on the chassis; a pinch roller pivotally attached on the pinch roller support plate at one end portion thereof arranged to be movable to advance to/retreat from the capstan shaft; an elongated guide hole formed in said pinch roller support plate at a portion between the one end portion of the pinch roller support plate and the first support shaft; a control plate slidably mounted on the chassis at the side of the second support shaft and formed with a cam hole; a driven pin projectingly provided on the control lever at one end portion thereof and inserted into the cam hole; a connecting plate pivotally attached at one end portion thereof on the control lever at a portion between the one end portion of the control lever and the second support shaft; an engaging pin projectingly provided on the other end portion of the connecting plate and inserted into the elongated guide hole; and a roller urging spring stretched between the other end portion of the pinch roller support plate and the other end portion of the control lever.

REFERENCES:
patent: 3900174 (1975-08-01), Morimoto et al.
patent: 4133012 (1979-02-01), Takamiya et al.
patent: 4309731 (1982-01-01), Yoshida et al.
patent: 4342055 (1982-07-01), Osanai

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