WO2024062173A1

WO2024062173A1 - Valve dome for a refillable reservoir of a refillable dispenser housing

Info

Publication number: WO2024062173A1
Application number: PCT/FR2023/051300
Authority: WO
Inventors: Jean-Luc Beurcq; Thibault De Maillard
Original assignee: Inospray
Priority date: 2022-09-22
Filing date: 2023-08-28
Publication date: 2024-03-28
Also published as: FR3140075A1

Abstract

A valve dome (30), particularly for a pouch-type reservoir, comprising a cup (34) having a rim (36) for crimping-on a cap (70) carrying a valve (75), characterized in that it comprises an end fitting (31) which constitutes a foot portion of the dome (30), is provided with first means (32) for fixing a recipient (11) intended to contain a sprayable product, and further comprises a channel (33) forming a passage for transferring said product to the valve.

Description

Title: DOME VALVE HOLDER FOR RECHARGEABLE RESERVOIR OF RECHARGEABLE DISPENSER BOX

Technical area

[0001] The present disclosure relates to the field of refillable tanks for dispensers of pressurized products and boxes comprising such tanks. It applies in particular to boxes dispensing aerosol, liquid or pasty products under pressure comprising a container containing the product to be dispensed and a valve carrying dome, said container and said dome being able to be separated.

Prior art

[0002] Document EP3019420 B1 in the name of the applicant concerns a pocket tank or refills for pressurized product dispenser boxes which has in particular on the one hand the advantage of facilitating the manufacture of these tanks or refills and on the other hand to allow pockets to be better emptied when distributing the product they contain.

[0003] This device, which has the first advantage of securing the bag to the dome and not to the valve, which facilitates the filling of the bag and the handling of the refill or the container containing the product to be sprayed, gives satisfaction for filling the containers or pockets through the housing of the valve holder cup and for handling the bags in automated manufacturing lines where the dome serves as a support for the advancement of the pockets in the filling and crimping line of the cup on the dome.

Technical problem

[0004] This solution has the disadvantage of having to manufacture one dome per pocket and of not being able to reuse the domes and/or the pockets separately, which can be useful for certain areas such as small series manufacturing, pocket refilling or the packaging of products by individuals by examples and to reduce the quantity of plastic thrown away when the bag is empty by keeping the dome for example. Furthermore, such a system is not suitable for rigid type containers that can be separated from a valve holder dome.

Presentation of the invention

[0005] In view of this situation, the present disclosure firstly proposes the production of a dome provided with means for fixing a container provided with complementary fixing means, the container and the dome being able to be separated, for example to fill pocket several times.

[0006] To do this, the present disclosure proposes a valve holder dome in particular for a pocket tank, comprising a bowl provided with a rim for crimping a valve holder cup which includes a tip constituting a foot part of the dome, provided with first means for fixing a container intended to contain a product to be sprayed and comprises a channel forming a passage for transferring said product to said valve.

[0007] The dome is adapted to receive various types of container as long as the latter include fixing means complementary to said first fixing means.

[0008] Said first fixing means may in particular consist of a helical rib on the external surface of the end piece at the end of the base of the dome.

[0009] The dome may include a peripheral collar for fixing the dome to an upper edge of a tubular housing.

[0010] The crimping edge advantageously comprises an annular bead for sealing said cup.

[0011] The dome advantageously comprises, between the tip and the bowl, an enlarged tubular passage whose external wall, at one end connecting with said tip, forms a support shoulder for a terminal rim of a conduit of said container. [0012] A tubular section of the end piece can be shaped to receive at least one anti-crush rod.

[0013] The present disclosure also relates to a pocket reservoir for liquid or pasty product comprising a pocket secured to a connector, for filling and emptying the pocket, said connector comprising a product passage conduit provided with a longitudinal axis , for which the connector comprises second fixing means so as to fix it in a removable manner on the termination of a valve holder dome provided with said first fixing means, said second fixing means being complementary to said first fixing means.

[0014] The pocket may include a neck welded to a foot of the connector, said foot being shaped like a “sealing eye” provided with wings extending in a direction perpendicular to said longitudinal axis.

[0015] Said second fixing means may include a helical rib on an internal wall of the conduit.

[0016] The connector may include operating lugs extending in a direction perpendicular to said axis.

[0017] The pocket reservoir advantageously comprises a shutter for closing said reservoir, said shutter comprising a cap portion provided with third fixing means complementary to said second fixing means and an operating head.

[0018] The present disclosure further relates to a liquid or pasty product dispenser housing comprising a tubular housing for receiving the pocket reservoir assembled with a dome for which the bag is received in the tubular housing assembled at the level of its connector with the dome , for which an edge of the annular flange of the dome is applied to an upper edge of the tubular housing by means of an annular ring screwed onto the housing, said tubular housing comprising a filling valve for pressurizing an internal free space of the housing by means a gas for pressurizing the pocket.

Brief description of the drawings Other characteristics, details and advantages of the invention will appear on reading the detailed description below of non-limiting exemplary embodiments, and on analysis of the appended drawings, in which:

[0020] [Fig. 1] shows a perspective view of a connector and a valve holder dome;

[0021] [Fig. 2] shows a perspective view of a pocket tank with connector assembled under a dome;

[0022] [Fig. 3] shows a sectional view of a connector assembled on a dome;

[0023] [Fig. 4] shows a pocket reservoir dispenser box;

[0024] [Fig. 5] shows a connector with shutter in perspective and in section.

Description of embodiments

The drawings and the description below contain elements which can not only serve to better understand the present invention, but also contribute to its definition, if necessary.

[0026] Figure 1 represents a valve holder dome 30 intended to receive a rigid or flexible container to produce a reservoir with diffuser and in particular a pocket reservoir as will be described below.

[0027] The dome comprises a bowl 34 provided with a rim 36 for crimping a valve holder cup 70 75 and comprises, opposite the bowl, an end piece 31 constituting a base portion of the dome 30, provided with first means 32 for fixing a container 10 intended to contain a product to be sprayed and comprises a channel 33 forming a passage for transferring said product to said valve.

[0028] Figure 2 represents a particular case of use of the dome to produce a pocket reservoir for liquid or pasty product comprising a flexible pocket type container 11 secured to a connector 20 assembled with a dome 30.

The connector 20 in particular shown in Figures 2 and 5 is a connector for filling and emptying the container and to this end comprises a conduit 21 for passing the product provided with a longitudinal axis A. This connector 20 comprises operating lugs 25 extending in a direction perpendicular to said axis.

Returning to Figure 2, the pocket 11 has a neck 12 welded or glued to a foot 23 of the connector 20.

[0032] With reference to Figure 1, the base of the connector is shaped like a “sealing eye” provided with wings 24 extending in a direction perpendicular to said longitudinal axis A to allow a watertight connection between the pocket and the connector.

[0033] For the assembly of the connector 20 under the dome 30, the connector 20 comprises second fixing means 22 complementary to said first fixing means 32 so as to fix it in a removable manner on the termination of the dome provided with said first means of fixing. fixing 32.

[0034] According to the example shown in particular in Figures 2, 3 and 5, the second fixing means and the first fixing means are complementary helical ribs which allow the connector to be screwed onto the dome, the conduit 21 of the connector being provided a first helical rib screwing onto the tubular end 31 of the dome comprising the first fixing means 32 consisting of a second annular rib complementary to the first to allow the connector to be screwed onto the end of the dome. Other embodiments of the fixing means are possible, such as an annular rib with an inclined slope on the end piece which snaps into place with a second annular rib in the conduit.

[0035] According to Figure 1 and Figure 3, the end piece 31 constitutes a foot part of the dome adapted to be inserted into the conduit 21 of the connector and comprises a channel 33 forming a passage for transferring the product towards an outlet of the dome.

[0036] According to Figure 3 in particular, the bowl 34 is surrounded by a peripheral collar 35 for fixing the dome to an upper edge of a tubular housing 50 as shown in Figure 4.

[0037] A circular peripheral wall of the bowl 34 is terminated at said outlet of the dome by a rim 36 provided with an annular bead 36a of waterproof fixing of the cup 70 supporting the valve 75 which are shown in Figure 5. The waterproof fixing is carried out for example in a known manner by crimping a folded edge of the cup onto the bead.

[0038] The dome comprises according to the example, between the tip 31 and the bowl 34, an enlarged tubular passage 37 whose external wall, at one end of connection with said tip forms a support shoulder 38 for a terminal rim 26 of the conduit 21 of the connector or the neck of a rigid container screwed onto the base of the dome.

The dome can however be designed differently to directly receive a valve without a cup, the enlarged tubular passage extending in this case to the top of the dome to directly receive the valve.

[0040] Returning to Figure 1, at the opposite end of the bowl 34, the end piece 31 receives, according to the example where the container 11 is a flexible pocket, an anti-crush rod 40 of the pocket which is inserted in the pocket 11 as shown in Figure 2 when securing the pocket tank with the dome. The anti-crush rod comprises, according to the example, a tubular termination 41 which is inserted into the tubular termination 33 of the base of the dome.

[0041] Figure 4 represents a liquid or pasty product dispenser housing comprising a tubular housing 50 for receiving the pocket reservoir, comprising the pocket 11 and the connector 20 assembled with the dome 30. The dome is sealed in a sealed manner to the housing , a rim 35a of the annular flange 35 of the dome being applied to an upper rim 51 of the tubular housing by means of an annular ring 80. To do this, the annular ring 80 comprises a support flange on the periphery of the flange annular of the dome and has an internal thread 81 which screws onto an external thread 81 of the housing.

[0042] To enable the housing to be filled with a gas such as air to pressurize the bag and allow the product it contains to exit when the product outlet valve 75 is opened, the housing tubular includes a filling valve 52 for pressurizing the internal free space of the housing by means of the gas pressurizing the pocket 11. [0043] Returning to Figure 1, the anti-crush rod comprises two arms 40a, 40b connected by curved crosspieces 40c to keep the two faces of the pocket apart and allow the passage of the product in the conduit 33 even when the pocket collapses under the action of the gas contained in the casing.

[0044] To enable the pocket to be kept filled when it is not assembled with the dome, a shutter 60 for closing the pocket reservoir as shown in Figure 5 is provided.

[0045] This shutter comprises an operating head 61 here a knurled operating head and a plug portion 62 provided with third fixing means 63 complementary to said second fixing means 22. These third fixing means 63 are here an identical helical rib to that provided as a second means of attachment to the end of the dome. Here again other types of fixing means suitable for holding the shutter with the plug pressed into the connector conduit can be provided.

The dome of the present invention is particularly well suited to receiving a pocket provided with a connector as described above but can also be used with a rigid or semi-rigid container.

The invention is not limited to the examples described above, only by way of example, but it encompasses all the variants that those skilled in the art could consider in the context of the protection sought. In particular, the dome can be used with a type of container other than a bag with connector, for example a bag with a fixing ring or a rigid or semi-rigid container. Furthermore, the first and second fixing means are not limited to ribs or helical ramps but these means can for example be made with an annular rib inside the conduit and an O-ring placed in a groove on the end piece. and positioned to pass behind the annular rib and be retained by the latter in the assembly position of the connector with the dome.

Claims

[Claim 1] Pocket tank for liquid or pasty product comprising: a. - a valve holder dome (30) comprising a bowl (34) provided with a rim (36) for crimping a valve holder cup (70) (75) characterized in that it comprises a tip (31), constituting a foot part of the dome (30) provided with a first connector element for the removable attachment of a container (11) intended to contain a product to be sprayed, said tip comprising a channel (33) forming a transfer passage for said produced towards said valve, b. a pocket (11) secured to a second connector element (20) complementary to the first connector element, said second connector element comprising a conduit (21) for passing the product provided with a longitudinal axis (A) for filling and emptying the bag, characterized in that the first connector element comprises first fixing means (32) and the second connector element (20) comprises second fixing means (22) complementary to said first fixing means (32 ) said first fixing means and second fixing means being shaped to fix the pocket in a removable manner on the end of the valve holder dome (30), the pocket (11) comprising a neck (12) welded to a foot (23) of the second connector element (20).

[Claim 2] Pocket tank for liquid or pasty product according to claim 1, for which the second connector element (20) further comprises operating lugs (25) extending in a direction perpendicular to said axis allowing the disassembly of the pocket.

[Claim 3] Valve holder dome (30) for a bag tank according to claim 1 or 2 for which said first fixing means (32) consist of a helical rib.

[Claim 4] Valve holder dome (30) according to claim 3 comprising a peripheral flange (35) for fixing the dome to an upper edge of a tubular housing (50).

[Claim 5] Valve holder dome (30) according to claim 3 or 4, for which the crimping rim comprises an annular bead (36a) for sealing said cup (70).

[Claim 6] Valve holder dome according to any one of claims 3 to 5 for which the dome comprises, between the tip (31) and the bowl (34), an enlarged tubular passage (37) whose external wall, at a connecting end with said end piece forms a support shoulder (38) for a terminal rim (26) of a conduit (21) of said container.

[Claim 7] Valve holder dome according to any one of claims 3 to 6, for which a tubular section of the end piece (31) is shaped to receive at least one anti-crush rod (40).

[Claim 8] Pocket for a pocket tank according to claim 1 or 2, for which the pocket (11) comprises a neck (12) welded to a foot (23) of the connector (20), said foot being shaped like an "eye sealing » provided with wings (24) extending in a direction perpendicular to said longitudinal axis (A).

[Claim 9] Bag according to claim 8, for which said second fixing means (22) comprise a helical rib on an internal wall of the conduit (21).

[Claim 10] Bag according to claim 8 or 9, comprising a shutter (60) for closing said reservoir, said shutter comprising a plug portion (62) provided with third fixing means (63) complementary to said second fixing means (22). ) and a maneuvering head (61).

[Claim 11] Dispenser housing for liquid or pasty product comprising a tubular housing (50) for receiving the pocket reservoir according to claim 1 or 2 provided with a pocket according to any one of claims 8 to 10 assembled with a dome according to any one of claims 3 to 7, for which the pocket (11) is received in the tubular housing assembled at its second connector element (20) with the dome (30), for which a rim (35a) of the annular collar (35) of the dome is applied to an upper edge (51) of the tubular housing by means of an annular ring (80) screwed (53, 81) onto the housing, said tubular housing comprising a filling valve (52) for pressurizing an internal free space of the housing by means of a gas for pressurizing the pocket (11).