Fixing device and a fitting method for fixing a dispenser member to a reservoir opening

Abstract

A fixing device for fixing a dispenser member ( 3 ) to an opening ( 41 ) in a fluid reservoir ( 4 ), said device having an axis of symmetry (X) and comprising a fixing ring ( 1 ) provided with means ( 113 ) for receiving the dispenser member ( 3 ) and with means ( 12 ) for fixing to the opening in the reservoir, said ring having a peripheral outside wall ( 111, 121 ), and a band ( 2 ) mounted on the ring so as to lock the ring on the reservoir opening, said band having an inside wall ( 21 ) designed to come into contact with the outside wall of the ring, said fixing device being characterized in that the outside wall of the ring is provided with at least one recess ( 114 ) and the inside wall ( 21 ) of the band is provided with at least one projecting profile ( 24 ) serving to come into engagement in the recess in the ring.

1 . A fixing device for fixing a dispenser member ( 3 ) to an opening ( 41 ) in a fluid reservoir ( 4 ), said device having an axis of symmetry (X) and comprising: 
 a fixing ring ( 1 ;  11 ) provided with means ( 113 ) for receiving the dispenser member ( 3 ) and with means ( 12 ) for fixing to the opening in the reservoir, said ring having a peripheral outside wall ( 111 ,  121 ); and    a band ( 2 ;  2 ′) mounted on the ring so as to lock the ring on the reservoir opening, said band having an inside wall ( 21 ) designed to come into contact with the outside wall of the ring;    said fixing device being characterized in that the outside wall of the ring is provided with at least one recess ( 114 ;  114 ′) and the inside wall ( 21 ) of the band is provided with at least one projecting profile ( 24 ;  24 ′,  24 ″) serving to come into engagement in the recess in the ring.    
   
   
       2 . A fixing device according to  claim 1 , in which the profile ( 24 ;  24 ″) being engaged in the recess ( 114 ;  114 ′) corresponds to a final fitted position in which the band is finally fitted to the ring.  
   
   
       3 . A fixing device according to  claim 1 , in which the profile ( 24 ′) being engaged in the recess corresponds to an intermediate fitting position in which the band is intermediately fitted to the ring.  
   
   
       4 . A fixing device according to  claim 1 , in which said at least one recess ( 24 ;  24 ′;  24 ″) extends in a plane perpendicular to the axis (X).  
   
   
       5 . A fixing device according to  claim 1 , in which the inside wall ( 21 ) has a top end ( 25 ) and a bottom end ( 27 ;  27 ′), said at least one projecting profile ( 24 ,  24 ″) being formed closer to the top end than to the bottom end, and advantageously in the vicinity of the top end.  
   
   
       6 . A fixing device according to  claim 1 , in which the inside wall ( 21 ) has a bottom end ( 27 ′), said at least one projecting profile ( 24 ′) being formed at said bottom end, said at least one profile ( 24 ′) coming into engagement in said at least one recess ( 114 ′) in an intermediate fitting position.  
   
   
       7 . A fixing device according to  claim 6 , in which the outside wall ( 121 ) has a bottom edge ( 126 ), said at least one profile ( 24 ′) coming into engagement under the bottom edge in a final fitted position.  
   
   
       8 . A fixing device according to  claim 1 , in which the band has an outside wall ( 22 ) provided with at least one recess ( 23 ).  
   
   
       9 . A fixing device according to  claim 8 , in which said at least one recess ( 23 ) is situated axially at the same level as said at least one projecting profile ( 24 ).  
   
   
       10 . A fixing device according to  claim 8 , in which said at least one recess and said at least one projecting profile are formed by an inwardly-extending deformation of the band.  
   
   
       11 . A fixing device according to  claim 8 , further comprising a cap ( 5 ) provided with an inside projection ( 53 ) designed to come into engagement in said at least one recess ( 23 ) in the band.  
   
   
       12 . A fixing device according to  claim 1 , in which the ring comprises a top peripheral bushing ( 11 ) and a skirt ( 12 ) that extends downwards from the bushing, the skirt forming segments ( 123 ) which are separated by slots, each segment forming at least one fastening head ( 124 ) which projects inwards, said at least one recess ( 114 ,  114 ′) being formed at the level of the bushing.  
   
   
       13 . A method of fitting a fixing device according to  claim 12  to an opening ( 41 ) in a reservoir ( 4 ), which opening is provided with a fastening shoulder ( 43 ), in which method said at least one projecting profile ( 24 ′) remains engaged in said at least one recess ( 114 ′) until the fastening heads ( 124 ) are in engagement under the fastening shoulder ( 43 ) of the opening in the reservoir.