Joystick
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United States of America Patent
Stats
-
Jul 20, 1993
Grant Date -
N/A
app pub date -
Jun 17, 1991
filing date -
Jun 18, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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Family
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Cited Art Landscape
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