Drive unit for dosage counter

Details Drive unit for dosage counter Drive unit for dosage counter

A - Human Necessities

61

M

A61M 15/00 (2006.01) G06M 1/04 (2006.01)

Patent

CA 2735207

A nebuliser, particularly an MDI, with a counter is proposed. By means of a guide track or inclined plane and an associated guide element, an axial movement occurring on actuation of the nebuliser is partly converted into a rotary movement for driving a counting ring, using an annular rigid drive element with axial teeth. In this way a simple and operationally reliable construction can be achieved, in which even incomplete actuations are counted.

L'invention porte sur un pulvérisateur (1), en particulier un atomiseur MDI, comportant un dispositif compteur (12). A l'aide d'une bande de guidage (27) ou d'un plan oblique (28), ainsi que d'un élément de guidage (23) qui leur est attribué, un mouvement axial (A) est, lors de la manuvre du pulvérisateur (1), partiellement converti en un mouvement de rotation pour entraîner une bague de comptage (14), un élément d'entraînement (17), annulaire et rigide, comportant une denture axiale (18) étant utilisé. Il est ainsi possible d'avoir une structure simple et sûre du point de vue fonctionnel, où les actionnements même incomplets sont comptés.

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