Rings for dispensing devices for fluid products

Abstract

A ring (10) for placement around a valve body (21) of a fluid dispenser valve (20), said valve body being mounted in a housing by means of a fastener package (50), such as a crimpable package On a reservoir of fluid to be dispensed, said ring (10) comprises: a single piece (15) comprising: at least one inner part (100, 110) cooperating with said valve body (21); towards the flange (11), said radial flange forming a neck seal extending between the neck of the reservoir and the fastener package (50); and at least one axial recess (120), said an axial recess extending radially inwardly from said radial flange (11) at least partially around the periphery of said ring (10), said single piece (15) being made of a substantially deformable first material; and at least one filling insert (16) at least partially filling said at least one axial recess (120), at least one filling insert (16) being made of a second material more rigid than the first material, at least one filling An insert (16) is overmoulded on said single piece (15).

Description

technical field [0001] The present invention relates to a ring for a fluid dispenser valve and a fluid dispenser device comprising such a ring. Background technique [0002] It is known to use rings with aerosol dispenser valves, in particular metered valves mounted on a reservoir containing the fluid to be dispensed. In particular, such rings are used in valves adapted to be used in an upside-down manner, ie the valve is arranged below the reservoir when a dose of fluid is expelled. Such rings generally fulfill two main functions, namely, firstly, to ensure that the maximum volume contained inside the reservoir can be dispensed by limiting the dead volume below the inlet of the valve when the valve is in its inverted working position. fluid volume. Second, such rings also serve to limit contact between the fluid and the neck seal that is typically placed between the neck of the reservoir and the fastener used to secure the valve to the receptacle Between ferrules or caps...

AI Technical Summary

Problems solved by technology

This configuration presents the disadvantage that when the radial clamp is too strong, it deforms the valve body (and in particular the interior of said valve body) over time and can lead to valve failure

In particular, rings present the disadvantage of being entirely made of a relatively flexible material, which can make manufacture and assembly more difficult

Furthermore, COC elastomers are relatively expensive materials

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