Fluid dispensing device, comprising at least one individual reservoir containing a single dose of fluid, such as powder, opening means (80) being provided for opening an individual reservoir with each actuation of the device, said device having movable support means (50) adapted to move an individual reservoir against said opening means (80) upon each actuation, said movable support means (50) being movable between a non-dispensing position and a dispensing position , said movable support means (50) being biased towards their dispensing position by elastic means (70), such as a spring, and being retained in the non-dispensing position by locking means which are released by the inhalation of the user, said device comprising a cocking member (800) cooperating with said elastic means (70) and with a cam surface (51), formed on said movable support means (50), said cam surface (51) having at least one loading portion (511； 511 ') for loading said resilient means (70), at least one end portion (515； 515') for wedging said cocking member (800) in said open position and / or in said closed position of an element hood (11, 12), and at least one security portion (513； 513 ') for connecting at least one loading portion (511； 511') to at least one end portion (515； 515 ').Dispositif de distribution de produit fluide, comportant au moins un réservoir individuel contenant une dose unique de produit fluide, tel que de la poudre, des moyens d'ouverture (80) étant prévus pour ouvrir un réservoir individuel à chaque actionnement du dispositif, ledit dispositif comportant des moyens de support mobiles (50) adaptés à déplacer un réservoir individuel contre lesdits moyens d'ouverture (80) à chaque actionnement, lesdits moyens de support mobiles (50) étant déplaçables entre une position de non-distribution et une position de distribution, lesdits moyens de support mobiles (50) étant sollicités vers leur position de distribution par des moyens élastiques (70), tel qu'un ressort, et étant
