Device for delivering a substance, the device including a pump comprising a stationary portion and a movable portion
A device for delivering a substance, the device including a first stationary portion and a second movable portion that is movable relative to the first portion between a rest position and an activated position, the device further including an abutment for putting the movable portion into abutment relative to the stationary portion, which abutment needs to be forced past in order to enable the movable portion to go from its rest position to its activated position, the abutment carried by the movable portion and an abutment carried by the stationary portion, at least one of these abutments being mounted on a resilient portion of the stationary portion and/or of the movable portion, the resilient portion being deformable between an abutment configuration and a retraction configuration and having a reinforcement for reinforcing the resilient portion, namely a part that bears against a zone of the resilient portion.
1. A device for delivering a substance, the device comprising a stationary portion and a movable portion that is movable relative to the stationary portion between a rest position and an activated position, the device further comprising abutments for putting the movable portion into abutment relative to the stationary portion, wherein the abutments need to be forced past in order to enable the movable portion to go from the rest position to the activated position, the abutments comprising a first abutment carried by the movable portion and a second abutment carried by the stationary portion, at least one of the first and second abutments being mounted on a resilient portion of the stationary portion and/or of the movable portion, the resilient portion being deformable between an abutment configuration and a retraction configuration and having a reinforcing part that bears against a zone of the resilient portion, wherein the reinforcing part reinforces the resilient portion and increases resistance of the resilient portion during deformation between the abutment configuration and the retraction configuration.
2. The device according to claim 1 , wherein the abutments are permanent, being designed to be forced past on each activation of the device by a user.
3. The device according to claim 1 , wherein the abutments are configured in such a manner that the force needed to force past the abutments is greater than the force needed for the movable portion to reach an end of a stroke of the movable portion.
4. The device according to claim 1 , wherein the resilient portion is a resilient tab.
5. The device according to claim 1 , wherein the resilient portion comprises a tab having two opposite ends, the two ends being fastened on the stationary portion or the movable portion.
6. The device according to claim 1 , comprising a pump, the stationary portion comprising a pump body and the movable portion comprising a dispenser head.
7. The device according to claim 1 , wherein the abutments are substantially punctual such that a distance along which the abutments need to be forced past is short relative to a distance of travel of the movable portion from the rest position to the activated position.
8. The device according to claim 7 , wherein the distance along which the abutments need to be forced past is less than half of the distance of travel of the movable portion.
9. The device according to claim 1 , wherein the abutments are configured to exert a radial force as the movable portion is forced past the abutments, wherein the radial force is exerted over less than half of a distance of travel of the movable portion from the rest position to the activated position.
10. The device according to claim 1 , wherein the resilient portion comprises at least one resilient tab, and wherein the reinforcing part comprises a belt that bears at least partially against the at least one resilient tab.
11. The device according to claim 10 , wherein the belt bears against only a lower portion of the resilient tab.
12. The device according to claim 10 , further comprising a fastener collar, said fastener collar comprising the belt.
13. The device according to claim 1 , wherein the reinforcing part circumscribes the resilient portion.
14. The device according to claim 1 , further comprising a fastener collar, said fastener collar comprising the reinforcing part.
15. A device for delivering a substance, the device comprising a stationary portion and a movable portion that is movable relative to the stationary portion between a rest position and an activated position the device further comprising abutments for putting the movable portion into abutment relative to the stationary portion, wherein the abutments need to be forced past in order to enable the movable portion to go from the rest position to the activated position, the abutments comprising a first abutment carried by the movable portion and a second abutment carried by the stationary portion, at least one of these abutments being mounted on a resilient portion of the stationary portion and/or of the movable portion, the resilient portion being deformable between an abutment configuration and a retraction configuration and having a reinforcing part for reinforcing the resilient portion, the reinforcing part bearing against a zone of the resilient portion, wherein one of the first and second abutments is slidably mounted relative to the stationary portion or to the movable portion, being movable between a retracted position and an abutment position under drive from a spring or a resilient arm bearing against said abutment.