Four-way key switch control mechanism

Details Four-way key switch control mechanism Four-way key switch control mechanism

1983-12-01

1985-05-28

Scott, J. R.

Electricity: circuit makers and breakers

Multiple circuit control

Multiple switch

200 18, 200153K, 200339, 340706, G09F 930, H01H 300, H01H 1900

Patent

active

045202400

ABSTRACT:
A four-way integral switch mechanism allows activation of any one of four switches. This mechanism may be used to position a cursor on a display in both the vertical and horizontal directions where there is a need to control four separate switches to properly locate the cursor. The switch mechanism includes two switch toppers, one of which snaps into and pivots within the other along an axis in a first direction. These two switch toppers then snap into a base which provides a second pivot axis for the second topper which is 90 degrees from the first. The base may have guide pin holes for positioning it as well as the two switch toppers. A spring mechanism engages each of the four lower surfaces of the switch toppers. The switch toppers thereby form one integral whole providing control of four switches by sliding a finger in the direction that cursor movement is desired. Each key has only one degree of freedom, that of rotation, which gives the key a firm controlled feel.

REFERENCES:
patent: 3383477 (1968-05-01), Swisher
patent: 4323744 (1982-04-01), Sheridan et al.
patent: 4401864 (1983-08-01), Ichikawa
patent: 4428649 (1984-01-01), Main et al.

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