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(11) | EP 1 063 386 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | Operating mechanism for shutters of the venetian type |
(57) Operation mechanism for venetian blinds which simultaneously tries to reduce the
size of the mechanism and to increase its simplicity and the sturdiness of its component
parts, for which the transmission system from the input tubular cogwheel, operated
by the tubular control rod by a cardan joint in order to adjust the inclination of
the vanes, consists of a second cogwheel of a considerably smaller diameter which
engages the former and which is coaxial to a spindle which acts on the output cogwheel,
which is keyed to the shaft which turns the vanes. |