Closure system for flexible pouches designed to remain completely attached to the flexible pouch.

Abstract

- Closure system for a flexible bag designed to remain attached to the flexible bag. - The closure system 1 comprises, on the one hand, a dispensing device (4) having a fastening portion (5) for attaching the closure system (1) to the flexible bag (2) and a cylindrical conduit (6) for forming a passage for the fluid material, and, on the other hand, a stopper device (7) having a stopper (8) for sealing the cylindrical conduit (6), a cylindrical tube (9) surrounding the cylindrical conduit (6) adapted to slide longitudinally around the cylindrical conduit (6), and a hinge (10) connecting the stopper (8) and the cylindrical tube (9). Figure for the abbreviation: Fig. 1

Claims

Claims

1. Closure system intended to be fixed to an opening (3) of a flexible bag (2) capable of containing a fluid material and to remain completely attached to the flexible bag (2), characterized in that it comprises: a pouring device (4) comprising: • a fixing part (5) intended to fix the closure system (1) to the opening (3) of the flexible bag (2) and • a first cylindrical pipe (6) intended to form a passage for the fluid material between the inside of the flexible bag (2) and the outside of the flexible bag (2), the first cylindrical pipe (6) having a first end (61), a second end (62) and a first axis of revolution (A1), the first cylindrical pipe (6) being integral with the fixing part (5) at its first end (61); a stopper device (7) comprising: • a plug (8) configured to be alternately in a closed position in which the plug (8) blocks the second end (62) of the first cylindrical pipe (6) and in an open position in which the plug (8) does not block the second end (62) of the first cylindrical pipe (6), • a cylindrical tube (9) surrounding the first cylindrical pipe (6), the cylindrical tube (9) having a first end (91), a second end (92) and a second axis of revolution (A2) coinciding with the first axis of revolution (A1) of the first cylindrical pipe (6), the cylindrical tube (9) being able to slide around the first cylindrical pipe (6) along the second axis of revolution (A2) between a first locking position and a second locking position when the cap (8) is in the open position, • a hinge (10) connecting the cap (8) and the first end (91) of the cylindrical tube (9).

2. System according to claim 1, characterized in that the pouring device (4) comprises a second cylindrical pipe (11) having a first end (111), a second end (112) and a third axis of revolution (A3) coinciding with the first axis of revolution (A1) of the first cylindrical pipe (6), the second cylindrical pipe (11) having an internal surface (SI 1), the first end (111) of the second cylindrical pipe (11) being free, the second end (112) comprising the fixing part (5), the pouring device (4) comprising a ring (12) securely connecting the second end (112) of the second cylindrical pipe (11) and the first end (61) of the first cylindrical pipe (6), the ring (12) forming a bottom (13) of a cylindrical space (14) between the first cylindrical pipe (6) and the second cylindrical pipe (11),the cylindrical tube (9) of the stopper device (7) being able to slide at least partly in the cylindrical space (14), the first locking position corresponding to a position of the cylindrical tube (9) when the second end (92) of the cylindrical tube (9) reaches the bottom (13) of the cylindrical space (14).,

3. System according to one of claims 1 and 2, characterized in that the cylindrical tube (9) has an external surface (S9) and comprises a first section (T1) and a second section (T2), the first section (T1) comprising the first end (91) of the cylindrical tube (9), the second section (T2) comprising the second end (92) of the cylindrical tube (9), the cylindrical tube (9) comprising a first external rib (15) projecting from the external surface (S9) of the cylindrical tube (9) on the second section (T2), the first end (111) of the second cylindrical pipe (11) comprising an internal rib (16) projecting from the internal surface (SI 1) of the second cylindrical pipe (11), the first external rib (15) being located in the cylindrical space (14) between the bottom (13) and the internal rib (16), the first external rib (15) and the internal rib (16) being configured so that the first external rib (15) prevents passage of the first external rib (15) over the internal rib (16) after a first insertion of the cylindrical tube (9) at least partly into the cylindrical space (14), the second locking position corresponding to a position of the cylindrical tube (9) when the first external rib (15) is in abutment against the internal rib (16) to at least partly retain the cylindrical tube (9) in the cylindrical space (14).

4. System according to claim 3, characterized in that the first external rib (15) and the internal rib (16) are further configured so that the first external rib (15) is able to pass over the internal rib (16) during the first insertion of the cylindrical tube (9) at least partly into the cylindrical space (14).

5. System according to one of claims 3 and 4, characterized in that the internal rib (16) has a first circular surface (17) orthogonal to the internal surface (SI 1) of the second cylindrical pipe (11), the first circular surface (17) facing the second end (112) of the second cylindrical pipe (11); the first external rib (15) having a second circular surface (18) orthogonal to the external surface (S9) of the cylindrical tube (9) on the second section (T2), the second circular surface (18) facing the first end (91) of the cylindrical tube (9); the second circular surface (18) being capable of being pressed against the first circular surface (17) when the first external rib (15) is in abutment against the internal rib (16) by preventing the passage of the first external rib (15) over the internal rib (16).

6. System according to one of claims 3 to 5, characterized in that the internal rib (16) has a first circular ramp (19) progressing from the first end (111) of the second cylindrical pipe (11) towards the second end (112) of the second circular pipe (11); the first external rib (15) having a second circular ramp (20) progressing from the external surface (S9) of the cylindrical tube (9) on the second section (T2) towards the first end (91) of the cylindrical tube (9); the second circular ramp (20) being capable of sliding against the first circular ramp (19) during the first insertion of the cylindrical tube (9) at least partly into the cylindrical space (14) by allowing the first external rib (15) to pass over the internal rib (16).

7. System according to one of claims 3 to 6, characterized in that the cylindrical tube (9) comprises a second external rib (21) projecting from the external surface (S9) of the cylindrical tube (9) on the first section (T1), the second external rib (21) being configured to temporarily block a sliding of the cylindrical tube (9) when the second external rib (21) bears against the internal rib (16) towards the second end (62) of the first cylindrical pipe (6) when the cylindrical tube (9) is in the first blocking position.

8. System according to one of claims 3 to 7, characterized in that the second external rib (21) has a rounded surface.

9. System according to one of claims 3 to 8, characterized in that the cylindrical tube (9) comprises a third external rib (22) projecting from the external surface (S9) of the cylindrical tube (9) on the second section (T2), the third external rib (22) being configured to temporarily block a sliding of the cylindrical tube (9) towards the first end (61) of the first cylindrical pipe (6) when the third external rib (22) bears against the internal rib (16) and when the internal rib (16) is located between the first external rib (15) and the third external rib (22).

10. System according to one of claims 2 to 9, characterized in that the second cylindrical pipe (11) comprises at least one relief (26) projecting from its internal surface (SI 1), the relief(s) (26) extending parallel to the third axis of revolution (A3), the relief(s) (26) being in mechanical connection with friction with the cylindrical tube (9) so that the cylindrical tube (9) is able to slide around the first cylindrical pipe (6) along the second axis of revolution (A2) if a user exerts a force parallel to the second axis of revolution (A2) on the cylindrical tube (9) which is greater than a predetermined force.

11. System according to one of claims 2 to 9, characterized in that the first cylindrical pipe (6) has an external surface (S61), the first cylindrical pipe (6) comprising at least one relief projecting on its external surface (S61), the relief(s) extending parallel to the first axis of revolution (A1), the relief(s) being in mechanical connection with friction with the cylindrical tube (9) so that the cylindrical tube (9) is able to slide around the first cylindrical pipe (6) along the second axis of revolution (A2) if a user exerts a force parallel to the second axis of revolution (A2) on the cylindrical tube (9) which is greater than a predetermined force.

12. System according to one of claims 1 to 11, characterized in that the first cylindrical conduit (6) has an internal surface (S6) comprising an obstacle projecting from said internal surface (S6) inside the first cylindrical conduit (6).

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