Appeal No. 2001-2045 Page 5
Application No. 09/360,936
operation lever, and particularly to a multi-direction switch device that may be utilized
as a so-called joystick or the like having a lever tiltable in multiple directions.
One embodiment of Yamamoto's lever switch device is shown in Figures 4 to 7.
In this embodiment, the lever switch device includes a square case 1; a square printed
board 2 having a pair of stationary contacts 3a and eight pairs of stationary contacts 3b
arranged at regular angular intervals of 45 degrees on a circle having the center at the
stationary contacts 3a; a switch cover 4 made of rubber having electric insulating
property having switch operating units 5a and 5b formed at a total of nine positions
respectively corresponding to the pair of stationary contacts 3a and the eight pairs of
stationary contacts 3b;3 a circular base 10 is fixed to the surface of the switch cover 4
such that the base 10 is concentric with the circle on which the eight select switches
SWB are arranged and which is centered at the set switch SWA; a cylindrical stopper
12; an operation pin 15 having an engaging flange 16 at its base end is fitted into each
of eight guide holes 14 in such a manner that the operation pin 15 can freely move in a
direction perpendicular to the printed board 2; a square through hole 17 in case 10;
coaxial support shafts 18 are formed on the periphery in the surface side of the through
3 One set switch SWA includes the stationary contact 3a and the switch operating unit 5a (we
note that the lead line for switch operating unit 5a in Figure 4 of Yamamoto is incorrect). Each of the
eight select switches SWB includes one stationary contact 3b and one switch operating unit 5b.
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