Patent ID: 8671939

Claim:
A fluid dispenser device comprising: a body including a dispensing orifice; a plurality of individual reservoirs each containing a dose of fluid, said reservoirs being disposed one behind another on an elongate flexible strip; reservoir-opening means comprising a perforator element that is stationary relative to the body; first strip displacement means for causing the elongate flexible strip to advance before and/or after each actuation of the device; and second reservoir-displacement means for displacing a full reservoir against said perforator element for opening said reservoir, said first displacement means including an indexer wheel that is rotatably mounted on said second reservoir-displacement means and provided with at least one cavity that is adapted to receive a respective reservoir, turning said indexer wheel and thus causing said elongate flexible strip to advance, wherein said first displacement means include an actuator member that is disposed in coaxial manner radially inside said indexer wheel, said actuator member being rotatable relative to said indexer wheel, the actuator member including two deformable flexible tabs co-operating with a set of teeth formed on the other of the actuator member and the indexer wheel, turning said actuator member in a first direction causing said indexer wheel to turn, and turning said actuator member in a second direction, opposite to said first direction, not causing said indexer wheel to turn, said actuator member co-operating with said body, such that when said second reservoir-displacement means bring a full reservoir against the perforator element, the actuator member turns in said first or second direction, and when said second displacement means take said empty reservoir away from said perforator element, the actuator member turns in said second or first direction, causing the indexer wheel to turn, and thus causing the elongate flexible strip to advance during a reservoir-opening cycle; wherein the two deformable flexible tabs co-operate with an inner set of teeth of said indexer wheel, the ends of said tabs pushing the teeth of said inner set of teeth when turning in said first direction of the actuator member, and sliding over said teeth when turning in the second direction; and wherein said actuator member includes a groove that co-operates with a projection that is secured to the body, such that when the second reservoir-displacement means displace a full reservoir against said perforator element, said projection causes said actuator member to turn in one of said directions, and when the second reservoir-displacement means return to the rest position, said projection causes said actuator member to turn in the other of said directions.