Volume control device mounting mechanism for on-vehicle equipmen

Details Volume control device mounting mechanism for on-vehicle equipmen Volume control device mounting mechanism for on-vehicle equipmen

1991-08-22

1993-08-10

Ng, Jin F.

Electrical audio signal processing systems and devices

Including amplitude or volume control

With manual volume control

248548, 4551771, H03G 302

Patent

active

052356485

ABSTRACT:
A volume control device mounting mechanism for on-vehicle equipment comprising: a variable resistor having a shaft; a knob mounted to an end of the shaft; a chassis for securing the shaft; a insertion hole formed on the chassis, the shaft being inserted through the hole; and slits formed on the chassis around the insertion hole, whereby mechanical strength of the chassis around the shaft insertion hole is slightly decreased from that of other portion of the chassis. The slits provided on the chassis prevent the volume control knob and the shaft from destruction due to large impact force, thereby the variable resistor as well as the knob and the shaft can be reused and human body of cardriver can be protected from injury.

REFERENCES:
patent: 2916617 (1959-12-01), Mladek
patent: 3951001 (1976-04-01), Saito et al.
patent: 4449955 (1984-05-01), Watanabe et al.

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