Joystick switch assembly

Details Joystick switch assembly Joystick switch assembly

1994-01-31

1995-12-05

Scott, J. R.

Electricity: circuit makers and breakers

Special application

Liquid or moisture responsive

200557, H01H 2504

Patent

active

054731267

ABSTRACT:
A joystick switch assembly includes a U-shaped bottom shell covered with a cover shell, a joystick extending out of the cover shell and having a contact plate at the bottom received within the bottom shell, an upper membrane circuit and a lower membrane circuit mounted on the joystick inside the bottom shell and separated by the contact plate, an upper conductive rubber disposed between the contact plate and the upper membrane circuit, a lower conductive rubber disposed between the contact plate and the lower membrane circuit, wherein the contact plate has two convex portions on two opposite sides thereof. Moving the joystick causes the convex portions to squeeze the conductive rubbers which caused variations in impedances across impedance points on the membrane circuits, and therefore a signal output is varied in proportion to the amount and direction of the movement of the joystick.

REFERENCES:
patent: 4245137 (1981-01-01), Hirai et al.
patent: 4408103 (1983-10-01), Smith, III
patent: 4440990 (1984-04-01), Nozaki
patent: 4511769 (1985-04-01), Sahakian et al.
patent: 4614847 (1986-09-01), Sasao
patent: 4795862 (1989-01-01), Linden
patent: 5361083 (1994-11-01), Pollack

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