Fluid product dispenser

Patent metadata

Field	Value
Publication number	US-2023173517-A1
Application number	US-202117921816-A
Country	US
Kind code	A1
Filing date	Apr 27, 2021
Priority date	Apr 28, 2020
Publication date	Jun 8, 2023
Grant date	—

Abstract

Fluid product dispenser comprising:a reservoir (R) having a neck (1),a dispensing head (T) mounted axially on the neck (1) and comprising a dispensing member (P), and a fastening ring (F) engaging both the neck (1) and the dispensing member (P), the fastening ring (F) comprising a skirt (2) including a plurality of internal latching projections (211),characterised in that the neck (1) defines externally a plurality of horizontal latching shoulders (130) oriented downward and a plurality of release ramps (112), the latching projections (211), initially engaged below the horizontal latching shoulders (130), being constrained radially outward on the release ramps (112) by rotation of the skirt (2) around the neck (1), thus releasing the latching projections (211) of their latching engagement from below the latching shoulders (130).

First claim

1 . Fluid product dispenser comprising:
a fluid product reservoir having a neck ( 1 ) internally defining an axial opening ( 10 ) oriented upward and communicating with the inside of the reservoir (R), a dispensing head (T) mounted axially on the neck ( 1 ) of the reservoir (R), the head (T) comprising a dispensing member (P), such as a pump or a valve, and a fastening ring (F) engaging both the neck ( 1 ) of the reservoir (R) and the dispensing member (P), the fastening ring (F) comprising a skirt ( 2 ) including a plurality of internal latching projections ( 211 ), characterised in that the neck ( 1 ) defines externally a plurality of horizontal latching shoulders ( 130 ) oriented downward and a plurality of release ramps ( 112 ), the latching projections ( 211 ), initially engaged below the horizontal latching shoulders ( 130 ), being constrained radially outward on the release ramps ( 112 ) by rotation of the skirt ( 2 ) around the neck ( 1 ), thus releasing the latching projections ( 211 ) of their latching engagement from below the latching shoulders ( 130 ).

2 . Dispenser according to claim 1 , wherein each release ramp ( 112 ) connects two neck zones which are radially offset and located axially at the same level, namely a base zone ( 11 ) located axially below each horizontal latching shoulder ( 130 ) and a projecting zone ( 121 ) located between two adjacent horizontal latching shoulders ( 130 ).

3 . Dispenser according to claim 2 , wherein at least one of the protruding zones ( 121 ) is provided with an oblique unscrewing cam ( 125 ) against which a lateral edge ( 214 ) of one of the internal latching projections ( 211 ) is urged axially upward, during the rotation of the skirt ( 51 ) around the neck ( 1 ).

4 . Dispenser according to claim 2 , wherein the latching shoulders ( 130 ) each define a substantially sharp latching ridge ( 132 ), which extends advantageously in radial alignment with the projecting zone ( 121 ), so as to form a continuous annular line.

5 . Dispenser according to claim 1 , wherein the neck ( 1 ) externally forms a plurality of oblique cams of angular indexing ( 123 ) on which lateral edges ( 214 ) of the internal latching projections ( 211 ) are urged in rotation during the axial displacement of the skirt ( 2 ) towards the neck ( 1 ), so as to automatically bring the internal latching projections ( 211 ) in axial alignment with their respective latching shoulders ( 130 ), before their latching under the latching shoulders ( 130 ).

6 . Dispenser according to claim 1 , wherein the neck ( 1 ) forms a radial expansion ramp ( 133 ) located axially above each latching shoulder ( 130 ), the internal latching projections ( 211 ) being elastically deformed radially outward on the radial expansion ramps ( 133 ), to then be relaxed under their respective latching shoulders ( 130 ).

7 . Dispenser according to claim 1 , wherein the skirt ( 2 ) forms a plurality of latching tabs ( 21 ), each forming an internal latching projection ( 211 ).

8 . Dispenser according to claim 7 , wherein the skirt ( 2 ) forms a plurality of axial holding tabs ( 22 ) defining internal faces ( 220 ) which come into close and extended contact with the projecting zones ( 121 ) of the neck ( 1 ), the axial holding tabs ( 22 ) and the latching tabs ( 21 ) being disposed alternately, the latching projections ( 21 ) extending radially further inward than the internal faces ( 220 ) of the axial holding tabs ( 22 ).

9 . Dispenser according to claim 8 , wherein the axial holding tabs ( 22 ) define external contact faces ( 227 ) and the latching tabs ( 21 ) define free external faces ( 217 ), the external contact faces ( 227 ) extending radially further outward than the free external faces ( 217 ), thus allowing the latching tabs ( 21 ) to be deformed radially outward by remaining in the bulkiness defined by the axial holding tabs ( 22 ).

10 . Dispenser according to claim 8 , further comprising a trim band ( 3 ) which is in contact with the external contact faces ( 227 ) of the axial holding tabs ( 22 ).

11 . Dispenser according to claim 8 , wherein the internal faces ( 220 ) of the axial holding tabs ( 22 ) each form a lower gap ( 221 ) housing an unscrewing cam ( 125 ) of the neck ( 1 ).

12 . Dispenser according to claim 1 , wherein:
the neck ( 1 ) externally defines a cylindrical base zone ( 11 ) and a plurality of projecting supports ( 12 ) separated from one another by the cylindrical base zone ( 11 ), except at the projecting ribs ( 13 ), each projecting support ( 12 ) forming a projecting zone ( 121 ), a vertical release ramp ( 112 ) and advantageously at least one oblique cam of angular indexing ( 123 ) which connects the cylindrical base zone ( 11 ) to the projecting zone ( 121 ) and advantageously an oblique unscrewing cam ( 125 ) which projects from the projecting zone ( 121 ), each projecting rib ( 13 ) forming a latching shoulder ( 130 ) and a radial expansion ramp ( 133 ), and the skirt ( 2 ) comprises a base cylindrical external face ( 20 ), the skirt ( 2 ) comprising latching tabs ( 21 ) which form the latching projections ( 211 ) coming below the latching shoulders ( 130 ), each internal latching projection ( 211 ) defining two vertical lateral edges ( 214 ), as well as a tip-shaped free end ( 215 ), the skirt ( 2 ) also comprising axial holding tabs ( 22 ) coming into close and extended contact with the projecting zones ( 121 ) of the neck ( 1 ), the latching tabs ( 21 ) and the axial holding tabs ( 22 ) being disposed alternately by being separated by vertical slots (S), the latching tabs ( 21 ) defining free external faces ( 217 ) which are offset radially inward with respect to the base cylindrical external face ( 20 ), while the axial holding tabs ( 22 ) define external contact faces ( 227 ) which are aligned and continuous with the base cylindrical external face ( 20 ), the axial holding tabs ( 22 ) each advantageously forming a lower gap ( 221 ) housing the unscrewing cam ( 125 ) of the neck ( 1 ), and a trim band ( 3 ) engaging the external contact faces ( 227 ) of the axial holding tabs ( 22 ).

Assignees

• Aptar France Sas

Inventors

• Lafosse Alain
• Kanarek Yann

Classifications

• B05B11/1049 Primary

  Attachment arrangements comprising a deformable or resilient ferrule clamped or locked onto the neck of the container by displacing, e.g. sliding, a sleeve surrounding the ferrule · CPC title

• B05B11/001

  Snap-on-twist-off type connections · CPC title

• B05B11/1047 Primary

  the pump being preassembled as an independent unit before being mounted on the container · CPC title