Distribution device to distribute a cosmetic product as a spray

Abstract

This device 14 for distributing a product as a spray, comprises a distributing valve ( 30 ) comprising: a valve body ( 40 ), defining an inner chamber ( 52 ), an actuating rod ( 42 ) defining an interior distribution duct ( 62 ) that opens outside of the rod ( 42 ) via an orifice for entry ( 64 ) and via an orifice for exiting ( 66 ), with the actuating rod ( 42 ) being mobile in the chamber ( 52 ) between a distribution position and a blocking position, and a return element ( 44 ) of the actuating rod ( 42 ) to its blocking position. The distribution device ( 14 ) also comprises a non-return valve ( 70 ) arranged inside the actuating rod ( 42 ) in order to prevent the circulation of a fluid in the distribution duct ( 62 ) from the orifice for the exiting ( 66 ) towards the orifice for the entry ( 64 ).

1 . A device for distributing a product as a spray, comprising a distributing valve comprising:
 a valve body, defining an inner chamber of the valve body that opens onto the outside of the valve body by an opening for the entry of the product,   an actuating rod, inserted into an exit opening of the valve body, the rod defining an interior distribution duct, said distribution duct opening onto the outside of the rod via an orifice for the entry of the product and via an exit orifice of the product, the actuating rod being mounted mobile in the chamber of the valve body between a distribution position of the cosmetic product, wherein the orifice for the entry is in fluidic communication with the chamber and the exit orifice is arranged outside of the chamber, and a blocking position of the cosmetic product, wherein the orifice for the entry is not in fluidic communication with the chamber, and   a return element of the actuating rod to its blocking position,   wherein characterized in that the distribution device comprises a non-return valve arranged inside the actuating rod in order to prevent the circulation of a fluid in the distribution duct from the exit orifice towards the orifice for the entry, said non-return valve comprising a member mounted mobile in the distribution duct.   
     
     
         2 . The device for distributing according to  claim 1 , wherein the non-return valve further comprises a seat (74)  for receiving the mobile member and an element for retaining the mobile member arranged successively in the distribution duct, the retaining member being interposed, along the distribution duct, between the seat and the exit orifice, the mobile member being mounted mobile in the distribution duct ( 62 ) between said seat and said retaining element, between a closed position wherein the mobile member is received in the seat, the distribution duct being fully sealed, and an open position wherein the mobile member is bearing against the retaining element, the distribution duct being partially free. 
     
     
         3 . The device for distributing according to  claim 2 , wherein the retaining element is an element added onto the actuating rod. 
     
     
         4 . The device for distributing according to  claim 2 , wherein the retaining element is molded inside the distribution duct. 
     
     
         5 . The device for distributing according to  claim 2 , wherein the retaining element is formed by a narrowing of the distribution duct. 
     
     
         6 . The device for distributing according to  claim 2 , wherein the retaining element is formed by a narrowing of the distribution duct. 
     
     
         7 . The device for distributing according to  claim 5 , wherein the narrowing of the distribution duct is formed by a local tightening of the actuating rod. 
     
     
         8 . The device for distributing according to  claim 5 , wherein the rod has, in line with the retaining element, at least one recess formed in its lateral face, the recess being at a distance from the central axis of the distribution duct less than an average radius of the distribution duct wherein the narrowing of the distribution duct is formed by a local tightening of the actuating rod. 
     
     
         9 . The device for distributing according to  claim 2 , wherein the retaining element defines at least one axial channel for the circulation of the product when the mobile member is in open position. 
     
     
         10 . The device for distributing according to  claim 1  wherein the mobile member is a ball. 
     
     
         11 . A packaging assembly of a cosmetic product, comprising a reservoir containing a cosmetic product and a distribution device closing said reservoir, wherein the distribution device is a distribution device such according to  claim 1 . 
     
     
         12 . A method for manufacturing a packaging assembly according to  claim 11 , comprising the following successive steps:
 supplying of the reservoir and of the distribution valve,   closing of the reservoir with the distribution valve,   filling of the reservoir by displacement of the actuating rod in distribution position and injection of the cosmetic product under pressure in the exit orifice, and   inserting of the mobile member into the distribution duct.   
     
     
         13 . The method of manufacture according to  claim 12 , comprising a step of forming a retaining element said step following the step of inserting. 
     
     
         14 . The device for distributing according to  claim 3 , wherein the retaining element is formed by a narrowing of the distribution duct. 
     
     
         15 . The device for distributing according to  claim 4 , wherein the retaining element is formed by a narrowing of the distribution duct. 
     
     
         16 . The device for distributing according to  claim 5 , wherein the retaining element is formed by a narrowing of the distribution duct. 
     
     
         17 . The device for distributing according to  claim 6 , wherein the narrowing of the distribution duct is formed by a local tightening of the actuating rod. 
     
     
         18 . The device for distributing according to  claim 3 , wherein the retaining element defines at least one axial channel for the circulation of the product when the mobile member is in open position. 
     
     
         19 . The device for distributing according to  claim 4 , wherein the retaining element defines at least one axial channel for the circulation of the product when the mobile member is in open position. 
     
     
         20 . The device for distributing according to  claim 5 , wherein the retaining element defines at least one axial channel for the circulation of the product when the mobile member is in open position.