Electricity: circuit makers and breakers – Multiple circuit control – Operating means
Patent
1981-10-26
1983-09-20
Scott, J. R.
Electricity: circuit makers and breakers
Multiple circuit control
Operating means
200 11TW, H01H 300
Patent
active
044058420
ABSTRACT:
A stepping or indexing mechanism for an encoding rotary or multi-position switch is arranged within a switch housing. The stepping mechanism comprises a symbol or numeric wheel, two substantially mirror-image and mutually symmetrically arranged locking or latching levers, a locking or latching wheel, a gear meshing with the symbol or numeric wheel as well as a switching or indexing element arranged laterally at the switch housing. The locking or latching levers are movably mounted at one end in a bearing or support element and at the other end are structured for the rotatable mounting of a related roller. The latching levers are drawn together with the rollers by a tension spring or equivalent structure into latching or locking recesses of the locking wheel. For the switching operation the locking levers are deflected against the restoring force of the spring out of the locking recesses, and the rollers then slide along locking or latching cams or dogs provided with arcuate-shaped flank profiles. The stepping or indexing mechanism insures for an exact switch or indexing operation which can be positively transmitted to the symbol or numeric wheel.
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Contraves AG
Kleeman Werner W.
Scott J. R.
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