Joystick

Details Joystick Joystick

1991-06-17

1993-07-20

Lateef, Marvin M.

Electrical resistors

Mechanically variable

Movable contact electrically adjustable over length of...

338 89, H01C 1016, H01C 1004

Patent

active

052297420

ABSTRACT:
A control stick is supported in an outer case such that it can be swung in two orthogonal directions. A moving member is fitted to the lower portion of the control stick through a coil spring. The lower end of the moving member is urged by the coil spring to a rotation-symmetrical cup-shaped inside surface of a guide case so as to make pressure contact with the inside surface. The curvature of the inside surface is determined so as to provide such a relationship that a contraction length of the coil spring is proportional to a square root of a tilt angle of the control stick from its neutral position.

REFERENCES:
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patent: 4812802 (1989-03-01), Nishiumi et al.
patent: 4825157 (1989-04-01), Mikan
patent: 4849583 (1989-07-01), Meyer
patent: 4857881 (1989-08-01), Hayes
patent: 4912997 (1990-04-01), Malcolm et al.
patent: 5050449 (1991-09-01), Falcou et al.

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