EP3914531A1

EP3914531A1 - Dispenser for a pressurised container

Info

Publication number: EP3914531A1
Application number: EP20700734.5A
Authority: EP
Inventors: Eric Gaillard; Hervé BODET
Original assignee: Lindal France SAS
Current assignee: Lindal France SAS
Priority date: 2019-01-25
Filing date: 2020-01-21
Publication date: 2021-12-01
Also published as: AR117851A1; US20220097951A1; MX2021008846A; US20220081188A1; US20220097950A1; BR112021014595A2; US11667461B2; WO2020152125A1; EP3914533A1; CA3126619A1; CA3126617A1; BR112021014610A2; MX2021007737A; CA3126616A1; AR117857A1; BR112021014594A2; US11661265B2; EP3914534B1; MX2021008841A; AR117853A1

Abstract

Disclosed is a dispenser (100) for a pressurised container (20) provided with a valve (30), provided with: a base body (110) having a finger tab (130) which can be actuated by the user in order to actuate the valve (30), and having an output opening (114) intended for the output of the product of the container (20); an outlet pipe (120), placed in the base body (110), having a passage (123) between a first end (121), said first end (121) being configured to cooperate with the valve (30) of the container (20), and a second end (122), the second end (122) being configured for the output of the product and corresponding with the outlet opening (114); wherein the base body (110) comprises a connection hole (140) remote from the outlet opening (114), said connection hole (140) passing between an outer surface and an inner surface of the base body (110), and configured to facilitate a fastening of the outlet pipe (120) so that the outlet pipe (120) can be hooked to the base body (110).

Description

DIFFUSER FOR PRESSURE CONTAINER

TECHNICAL AREA

The invention relates to a diffuser for a pressurized container provided with a valve, in particular for an aerosol generator, and more particularly a diffuser in several assembled parts.

STATE OF THE ART

Generally, a diffuser is made up of two main parts with distinct functions injected into one material. These two parts are the outlet duct, the functions of which are to lead the product contained in the pressure vessel from the valve and to dispense this product, and the base body which makes it possible to protect the outlet duct and which includes elements to activate the outlet duct to cause the product to exit. The diffuser can be molded in one piece or have parts injected in one material, optionally in two different colors, and mechanically snapped together. So depending on the container, the commercial distributor of the final article, and the product contained in the container, the diffuser modeling must be completely redesigned for each new variation, and the production lines readjusted. As a result, these additional modeling and production costs are reflected in the cost of each diffuser produced. Thus, there is a need for a diffuser whose variations have a lower cost.

Diffusers already exist, the parts of which, before assembly, are initially separate and then assembled, for example mechanically, by gluing or thermal welding, or produced by bi-material injection. Only these diffusers require that their different parts be completely redesigned and the production chains readjusted for each possible variation of the diffuser. All the additional modeling and manufacturing costs, despite the possibility of using separately manufactured parts for different parts of the diffuser, are not significantly reduced enough. Therefore, it is necessary to have a diffuser that can be adapted to different variations more easily to limit additional costs.

STATEMENT OF THE INVENTION

The aim of the invention is to provide a diffuser, the different parts of which can be assembled in a way which makes it possible to produce variations between different diffusers of economical way, while preserving as much modeling flexibility as possible between the different variations.

According to a first aspect of the invention, there is provided a diffuser for a pressurized container provided with a valve, in particular for an aerosol generator. The diffuser has a basic body and an outlet duct. The base body has a finger cot intended to be pushed in by the user to actuate the valve, and has an outlet opening for the outlet of the product contained in the container. The outlet duct is placed in the base body, and has a passage between a first end and a second end. The first end is configured to cooperate with the valve of the pressure vessel. The second end is configured for the outlet of the product contained in the pressure vessel, and to correspond with the outlet opening of the base body. The base body includes a connection hole remote from the outlet opening. The connection hole is through between an outer surface of the base body and an inner surface of the base body, and configured to facilitate attachment of the outlet duct such that the outlet duct can be hooked to the base body.

The embodiments of the invention are based inter alia on the inventive idea that the part generating a large number of constraints, and therefore costs, when modeling a new variation of the diffuser is the connection between the body of the diffuser. base and outlet duct. Indeed, if we start from a new specific model for the base body, the outlet duct must be configured to be connected to a certain part of the base body, and therefore completely redesigned. Conversely, if we start from a new specific model for an outlet duct, the base body and the elements for actuating the outlet duct must be configured to be connected in order to cause the product contained in the container to exit correctly, and therefore completely redesigned.

By freezing part of the model of the base body by the presence of a connection hole, a constant means to ensure the attachment of the outlet duct to the base body is present for all variations of the diffuser. The connection hole will be used to facilitate the attachment of the outlet duct to the base body. It can be used, for example, to introduce a means of mechanical attachment, a glue or adhesive, a weld, or a tool for fixing the outlet duct to the base body. Since only a connection hole is required at a given position on the base body, modeling flexibility between different diffuser variations is preserved.

In addition, since the connection hole is through, the attachment of the outlet duct can be accomplished by manipulation of the outlet duct and the base body from outside the base body and / or with minimal interior manipulation. . Fixing the outlet duct to the basic body is therefore not made unduly complex, which makes it possible to maintain an economical solution.

In a typical embodiment, the outlet duct may be available in a small number of so-called standard variants, for example a variant with a nozzle, and a variant without a nozzle, and the models of the variations of the basic body may be made. so as to adapt to standard outlet ducts. In addition, the dimensions of the outlet duct can be optimized to use as little material as possible. As for the material of the base body, it may be a material of a different nature from that of the outlet duct, and / or recycled, and / or derived from renewable resources, and / or economically advantageous.

In a preferred embodiment, the outlet duct and the base body are two separate parts, and the outlet duct, in the state hooked to the base body, comprises a portion inserted into the connection hole.

In this way, the two parts can be made independently of each other in compatible or incompatible materials. In an exemplary embodiment, the variations of the outlet duct are standardized and already manufactured. It will therefore only be necessary to model a single part, the base body, in function, which can allow more logistical flexibility and reduce costs.

The outlet duct can be hooked to the base body thanks to a portion of the outlet duct introduced into the connection hole so that it cannot come off on its own. The introduced portion can be mechanically joined, welded, chemically glued, and / or heat-sealed to the base body. The connection hole will therefore facilitate the attachment of the outlet duct and, by inserting the portion of the outlet duct, will facilitate the positioning of the outlet duct relative to the base body.

It should also be noted that due to the presence of the attachment between the outlet duct and the base body, these two parts of the diffuser can be made of different materials. Thus, the outlet duct and the base body can also be made with different textures, e.g. ex. a basic “soft touch” body, and / or with different colors. The material of the outlet duct may be chosen to be compatible with the product contained in the pressure vessel, while the material of the base body will not need to fulfill this condition, but may be chosen for its mechanical properties or its environmental value and / or

economical, eg recycled material. For example, if the diffuser is intended for a product food, the material of the outlet duct should be food grade, while that of the base body not in contact with the product need not be.

Depending on the attachment means used to secure the outlet duct to the base body, the materials chosen may be chosen to be compatible or not. Among the materials that can be envisaged for the base body, we can cite polymeric materials (PE, PP, PLA, PHA, PBS) whether they are new or recycled, derived from petroleum or natural resources, biodegradable or not, or even compostable or no. They may contain mineral fillers, eg. ex. basalt glass, and be reinforced with mineral or vegetable fibers. Non-polymeric materials can also be considered, such as lignin-based materials, eg cardboard, wood, materials containing textiles, metals, etc. For the outlet duct, mention may be made, by way of nonlimiting example, of polymers (PE, PP, POM, PBT, PA, etc.), which are injectable materials, or machinable materials, such as metals, p .ex. aluminum, steel, especially stainless steel.

In an advantageous embodiment, the outlet duct is hooked to the base body through the connection hole mechanically.

In this way, the attachment of the outlet duct to the base body is simple to implement. Mechanical attachment can be achieved by an additional fastening element such as a screw or rivet configured to retain the outlet duct to a wall of the base body. In another exemplary embodiment, the mechanical fastening can be achieved by force fitting between a portion of the outlet duct and the connection hole. In yet another exemplary embodiment, the mechanical attachment can be achieved by snap-fastening together the outlet duct and the base body by force. Mechanical fixing may or may not be supplemented by fixing by gluing, heat sealing, welding.

In a preferred embodiment, the connection hole passes through between an outer surface of the finger cot and an inner surface of the finger cot, preferably transversely to the outer and / or inner surface of the finger cot.

In this way, the outlet duct can be connected directly to the finger cot so that the pressure from the finger cot is effectively relayed to the valve via the outlet duct for

G actuation of the valve. The displacements of the outlet duct can therefore be

mechanically correlated with the movements of the finger cot.

The finger cot of a diffuser can be defined as the part of the diffuser subjected directly to a displacement following the pressure of a finger of the user on a portion of the external surface of the finger cot. The movement of the finger cot causes, generally mechanically, the movement of the outlet duct and the actuation of the valve of the pressure vessel.

In an exemplary embodiment, the finger cot can be resiliently connected to the rest of the base body, e.g. ex. by a tab, and the outlet duct directly attached to the finger cot through a portion inserted into the through connection hole. The movements of the outlet duct will thus correspond to the movements of the finger cot. In other embodiments, the finger cot can be separated from the base body and be pushed in either in a vertical translational movement or in a tilting movement around a support.

In an advantageous embodiment, the outlet duct is provided with a hooking stud so that the hooking stud and the outlet duct are integrated in one piece.

In this way, the attachment means is mechanically simple and robust. By integrating the hooking pin into the outlet duct, the number of separate elements making up the diffuser is limited. Depending on the type of fastening pin, the attachment of the outlet duct to the base body can be achieved by interlocking or by force, thus requiring no additional element, or can be achieved with an additional fixing element. A new model of a variation of the outlet duct can be carried out simply by modifying the length of the hooking pin according to the desired base body. In addition, the section of the attachment pin can be designed to promote, by cooperating with a section of the connection hole,

G alignment and positioning of the outlet duct relative to the base body.

In a preferred embodiment, the hooking pin comprises a rod, a shoulder, and a cap connected to the outlet duct by the rod, said rod terminating opposite the cap by G shoulder.

In this way, the hooking pin comprises a portion, the cap, making it possible to retain the outlet duct to the base body and not requiring any additional fixing element to the base body. The shoulder and the cap may be configured such that, in the hooked state of the outlet duct to the base body, a transverse extension of the shoulder is greater than the corresponding transverse extension of the connection hole and an extension transverse extension of the cap is greater than the corresponding transverse extension of the connection hole. The rod can be configured to pass through the connection hole. By assembling the outlet duct to the base body by force, the cap and G shoulder can be located on either side of a portion of the connection hole, and the outlet duct will be fixed to the base body. In an advantageous embodiment, the hooking pin is configured to cooperate with the connection hole so that, in the hooked state, the inner surface of the base body and the outer surface of the base body are placed between the cap of the hooking stud and the shoulder of the hooking stud.

In this way, the connection hole is made through the very wall of the base body. The molding and the manufacture of this structure are therefore simplified. In addition, this can help minimize the length of the rod, and therefore the amount of material used.

In a preferred embodiment, the connection hole is defined by a first portion and a second portion, said first portion being an internal portion opening onto the internal surface of the base body, said second portion being an external portion opening onto the surface. outer core body; and the first portion and the second portion of the connecting hole are configured such that, in the hooked state, the surface of the end cap of the hooking post is flush with the outer surface of the base body.

In this way, the attachment of the outlet duct and the base body is more aesthetic since the outer surface of the finger cot punctuated by the surface of the end of the cap can be made continuous. Alternatively, the outer surface of the finger cot may have positive and / or negative reliefs and the surface of the end of the cap can be part of these reliefs.

In an advantageous embodiment, the attachment post comprises an asymmetric or blocky cross section; and the connection hole comprises an asymmetric or blocky cross section corresponding to the asymmetric or blocky cross section of the hooking post. The asymmetric or polyhedral cross-sections of the hooking post and the connection hole can be chosen so that, in the hooked state, the rotation of the outlet duct relative to the base body is blocked.

In this way, the hooking pin and the connecting hole have the dual functionality of hooking means and guiding means of the outlet duct relative to the base body.

In a preferred embodiment, the outlet duct is provided with a hollow compartment between the hooking pin and the passage between the first end and the second end. In this way, the distance between the hooking pin and the passage can easily be adjusted according to the profile of the base body by changing the dimensions of the hollow compartment. In addition, the compartment being hollow, little material is used. In an exemplary embodiment, the hollow compartment is parallelepipedal in shape to have a simple and structurally rigid shape. The hollow compartment can be part of the shoulder.

In an advantageous embodiment, the connection hole is located on a front half of the finger cot viewed towards the outlet of the product from the second end of the outlet duct, in the hooked state.

In this way, the distance between the connection hole and the second end of the outlet duct is reduced, and the dimensions of the outlet duct can be minimized longitudinally for the attachment of the outlet duct to the base body. In an exemplary embodiment, the finger cot is resiliently connected to the base body and the link is located at the rear of the finger cot as seen towards the outlet of the product from the second end of the outlet duct; the outlet duct attached to the front of the fingertip can therefore be mechanically correlated to a greater vertical displacement of the fingertip than if it were attached to the back of the fingertip.

In a preferred embodiment, a portion of the connection hole opening onto the internal surface of the finger cot is configured to be coaxial with the valve of the pressure vessel.

In this way, the portion connecting the outlet duct to the base body closest to the finger cot is aligned with the axis of the valve. Pressure on the finger cot causing the finger cot to move along the axis of the valve is more effectively transmitted to actuate the valve. In addition, the conversion of pressure on the finger cot to transverse movement of the valve axis is reduced, resulting in less transverse bending at the outlet end of the valve.

In an advantageous embodiment, the second end of the outlet duct is floating relative to the base body.

In this way, there are fewer connection elements to be made between the outlet duct and the base body, which requires less material. In an exemplary embodiment, the second end of the outlet duct may face an oblong, through outlet opening of the base body, said outlet opening being configured to allow product to exit the second end of the outlet duct when the second end moves along the axis of the valve.

In a preferred embodiment, the base body consists of a wall forming a cavity, said wall comprising a convex front surface viewed towards the outlet of the product from the second end of the outlet duct, in the hooked state. , said convex front surface comprising an outlet opening corresponding to the second end of the outlet duct, in the hooked state.

In this way, the outlet opening in the convex front surface of the base body is brought closer to the axis of the valve, and the longitudinal dimensions of the outlet duct can be minimized.

In an advantageous embodiment, the minimum distance between a first point, said first point being a point of the connection hole on the external surface of the finger cot, and a second point, said second point being a point of the outlet opening on the outer surface of the base body is less than 12mm, preferably less than 10mm, more preferably less than 8mm.

In this way, an additional constraint is added to the modeling of the base body which ensures the use of an outlet duct whose dimensions are reduced, and by the same whose volume of material used is economically advantageous.

In a preferred embodiment, a portion of the hooking pin, in the hooked state, is visible from the outside of the diffuser, and has a recognizable shape and / or color to serve as a means of identification by the diffuser. user.

In this way, the hanging post has the dual function of identifier and means

hanging. The shape and / or color of the attachment post may indicate a type of product, an origin of the product, precautions for using the product, packaging of the product, etc.

BRIEF DESCRIPTION OF THE FIGURES These and other aspects of the present invention will now be described in more detail, with reference to the accompanying drawings showing exemplary embodiments of the invention. Like numbers refer to like features in all drawings.

Figures 1A-1B show an exploded perspective view and a perspective view of a longitudinal section, respectively, of the diffuser, the pressure vessel valve, and the pressure vessel according to one embodiment of the invention;

Figures 2A-2B illustrate a longitudinal sectional view of the diffuser and an enlargement, respectively, according to the embodiment of Figures 1A-1B;

Figure 3 illustrates a longitudinal sectional view of the diffuser according to another embodiment of the invention;

Figure 4 illustrates a longitudinal sectional view of the diffuser according to another embodiment of the invention;

Figure 5 illustrates a longitudinal sectional view of the diffuser according to another embodiment of the invention.

DETAILED DESCRIPTION OF THE INVENTION

Figures 1A-1B show an exploded perspective view and a perspective view of a longitudinal section, respectively, of the diffuser, the pressure vessel valve, and the pressure vessel according to an exemplary embodiment of the invention. . The invention relates to a diffuser 100 for a pressurized container 20, in particular for aerosol generators, foam generator, distribution system for gels, creams, pasty or liquid products, etc. The diffuser 100 is intended to actuate the valve 30 of the container in order to withdraw at least part of the contents of the pressurized container 20 and to distribute it, for example, in the form of an aerosol or a foam. The pressure vessels 20 generally consist of a housing 21 provided with a neck closed by a valve 30 mounted on a valve cup 35. It happens that the valve cup 35 is fixed to the housing 21 by means of a dome 22. When the valve 30 is of the male type, a nozzle 31, or stem, protrudes from the valve.

The diffuser 100 comprises a base body 110 and an outlet duct 120. The base body 110 may be provided with a cavity formed by an outer wall 111 of the base body or arranged in a substantially solid body. The outlet duct 120 can be housed entirely or partially in the cavity formed by the external wall 111. The external wall 111 can comprise concave and / or convex parts.

The pressure vessels 20 generally have a cylindrical end on which the base body 110 will be fixed. The nozzle 31 of the valve protrudes from this end and is centered with respect to that end. The nozzle 31, the main body of the valve 30, and the cylindrical end of the pressure vessel 20 are aligned along an axis A. To cooperate with the cylindrical end of the vessel, a lower part of the outer wall 111 of the pressure body base may have rotational symmetry about the axis A in the state attached to the container.

The base body 110 can be provided with a fixing ring 112 allowing it to be fixed either directly to the pressure vessel, in particular on the housing or the valve, or by means of a ferrule. This fixing ring 112 may be provided with fixing means over the entire periphery of the fixing ring or distributed regularly. These fixing means may be intended to cooperate with complementary fixing means produced on the housing 20 or the valve 30 of the pressure vessel, or on the ferrule 23. In particular, the series of regularly distributed gadroons 112 of FIG. snap behind a rolled edge 24 at the interface between the housing 21 and the valve cup 35 or between the housing 21 and the dome 22 on which the valve cup 35 is fixed. Other fixing means can be envisaged , such as a continuous rib, a thread for screwing, an extra thickness of material for welding, glue for gluing, etc.

The wall 111 of the base body can be pierced with a finger cot opening 113 in which the finger cot 130 sits. The finger cot 130 can be fixed to the rest of the base body 110 by a tab 131 which acts as a hinge so that when 'pressure is exerted on the finger cot 130 towards the inside of the base body 110, therefore towards the valve 30 when the diffuser 100 is fixed on the pressure vessel 20, the finger cot 130 pivots around an axis transversely passing through the tongue 131. In the example of Figs. 1A-1B, the finger cot 130 and the corresponding opening of the finger cot 113 are placed towards the top of the base body 110. In other embodiments, the finger cot 130 can be separated from the base body 110 and be pressed either in a vertical translational movement or in a tilting movement around a support.

An outlet opening 114 can be made in the wall 111 of the base body.

The outlet opening 114 can be configured so that the product withdrawn from the pressure vessel which exits the outlet duct 120 passes through it. The adjectives "front" and "rear" refer to this exit of the product through the outlet opening 114, the product exiting through a front part of the diffuser 100 and the rear part being opposite to it. In the example of Figs.lA-1B, the finger cot 130 is fixed to the rest of the base body 110 by the tab 131 located at the rear of the finger cot 130. In another exemplary embodiment, the finger cot can be fixed by the tab on the front of the finger cot, see Fig. 4.

The base body 110 includes a connection hole 140. The connection hole 140 is traversed between an outer surface of the base body 110 and an internal surface of the base body 110, and is configured to facilitate attachment of the outlet duct 120. so that the outlet duct 120 can be hooked to the base body 110. The outlet duct 120 can be hooked. attached to the base body 110 by joining them mechanically, by gluing, welding, and / or heat sealing. In the example of Figs.lA-1B, the connection hole 140 is located in the longitudinal section plane of the base body 110, on a front part of the finger cot 130.

Due to the presence of the attachment between the outlet duct 120 and the base body 110, these two parts of the diffuser 100 can be made of different materials. The material of the outlet duct 120 may be chosen to be compatible with the product contained in the pressure vessel, while the material of the base body 110 will not need to fulfill this condition, but may be chosen for its mechanical properties. or its value

environmental and / or economical, eg recycled material. For example, if the diffuser 100 is intended for a food product, the material of the outlet duct 120 may be food grade, while that of the base body 110 not being in contact with the product need not be. being.

Depending on the attachment means used to secure the outlet duct 120 to the base body 110, the materials chosen may be chosen to be compatible or not. Among the materials that can be envisaged for the base body 110, we can cite polymer materials (PE, PP, PLA, PHA, PBS) whether they are new or recycled, derived from petroleum or natural resources, biodegradable or not, or even compostable. or not. They may contain mineral fillers, eg basalt glass, and be reinforced with mineral or vegetable fibers. Non-polymeric materials can also be considered, such as lignin-based materials, eg cardboard, wood, materials containing textiles, metals, etc. For the outlet pipe 120, mention may be made, by way of nonlimiting example, of polymers (PE, PP, POM, PBT, PA, etc.), which are injectable materials, or machinable materials, such as metals, eg aluminum, steel, especially stainless steel.

A more detailed description of the outlet duct 120, of its positioning relative to the base body 110, and of its attachment to hook it to the base body 110 can be read below with reference to Figs. 2A-2B

Figures 2A-2B illustrate a longitudinal sectional view of the diffuser and an enlargement, respectively, according to the exemplary embodiment of Figures 1A-1B. The diffuser 100 includes a base body 110 and an outlet duct 120.

The outlet duct 120 placed in the base body 110 has a passage 123 between a first end 121 and a second end 122. The first end 121 is configured to cooperate with the valve of the pressure vessel. The second end 122 is configured for the outlet of the product contained in the pressure vessel. In the hooked state of the outlet duct 120 to the base body 110, the second end 122 is oriented to match to the outlet opening 114. The second end 122 may be fixed or floating relative to the outlet opening 114, floating in the present example.

The outlet duct 120 has at the first end 121 means for actuating the valve. If the valve is a female-type valve, the first end 121 may include a rod intended to penetrate the valve to actuate it. If the valve is of the male type, the first end 121 can be flared to facilitate the introduction of the stem when mounting the diffuser 100 on the pressure vessel.

The second end 122 of the outlet duct opens outwards and may be fitted with a nozzle to improve the quality of the aerosol. If the product does not exit in alignment with the valve, the outlet duct 120 may be divided between at least a first substantially straight section 124 and a second section 125 inclined relative to the first. In the present example, the first section 124 begins at the first end 121 and ends at the junction with the second section 125. The second section 125 begins at the junction with the first section 124 and ends at the second end 122. L 'at least a first section 124 and the second section 125 form the passage 123 between the first end 121 and the second end 122.

To allow the installation of a nozzle, the second section 125 can be provided on the side of the second end 122 with a nozzle housing 126. In the example of Figs.2A-2B, the second section 125 is formed an internal duct 125a forming a portion of the passage 123 and which is surrounded by a cylindrical wall 125b at least on the side of the second end 122. The annular space between the internal duct 125a and the cylindrical wall 125b constitutes the nozzle housing 126. If the diffuser 100 is not equipped with a nozzle, it is possible to dispense with the cylindrical wall 125b.

To hook the outlet duct 120 to the base body 110, the outlet duct 120 may include a hooking portion 150. In the example of Figs.2A-2B, the hooking portion 150 is attached to the top of the first. section 124 of the outlet duct and extends, in the attached state of the outlet duct 120 to the base body 110, in the direction of the front of the finger cot 130, coaxially with the axis A. According to another embodiment , the hooking portion 150 can extend at a distance from the axis A, parallel to the axis A. According to yet another embodiment, the hooking portion 150 can extend obliquely with respect to at axis A.

To hook the outlet duct 120 to the base body 110 in the embodiment of Figs.2A-2B, the hooking portion 150 is provided with a part configured to cooperate with a complementary part made in the finger cot 130. The hooking portion 150 is intended to be snapped into the connection hole 140 to mechanically join the outlet duct 120 to the base body 110. The hooking portion 150 can include a hooking pin consisting of a substantially cylindrical rod 152 which can be fixed by its first end to the outlet duct 120, and carrying at its second end a cap 153 of cross section greater than the cross section. transverse of the rod 152.

The junction between the rod 152 and the rest of the outlet duct 120 can constitute a shoulder 151 at a distance from the cap 153. In the present case, the hooking pin 151, 152, 153 comprises a cylinder in which a groove is made. annular. The top of the cylinder corresponds to the cap 153. The annular groove forms the rod 152. The part of the cylinder opposite the cap 153 corresponds to the shoulder 151. The hooking portion 150 can be joined to the outlet duct 120 by a hollow compartment 127. In the present example, the hollow compartment 127 is of parallelepipedal shape in order to have a simple and structurally rigid shape. The hollow compartment 127 can act as the shoulder 151.

To prevent the outlet duct 120 from rotating around the hooking portion 150 at the risk that the second end 122 of the outlet duct is no longer aligned with the outlet opening 114, anti-rotation means may be provided. In the present example, these anti-rotation means consist of two guide tabs 160. These guide tabs 160 are located on the internal surface of the wall 111 of the base body and extend on either side of the second section. 125 of the outlet duct from the internal surface of the finger cot and towards the first end 121 of the outlet duct. The two guide tabs 160 are placed opposite one another preferably symmetrically with respect to the longitudinal plane parallel to the axis A and passing through the center of the connection hole 140 and of the outlet opening. 114. They can be spaced from one another so as to enclose, or at least surround with little play, the outlet duct 120. To facilitate the positioning of the outlet duct 120, the distance between the two guide tabs 160 can go by widening slightly in the direction of the first end 121 of the outlet duct, along the axis A.

In another preferred embodiment, the hooking post 151, 152, 153 may include an asymmetric or blocky cross section. The connection hole 140 may include an asymmetric or polyhedral cross section corresponding to the asymmetric or polyhedral cross section of the hooking post 151, 152, 153. The asymmetric or polyhedral cross sections of the hanging post 151, 152, 153 and the connection hole 140 can be chosen such that, in the hooked state, the rotation of the outlet duct 120 relative to the base body 110 is blocked.

Depending on the length of the second section 125 of the outlet duct, provision may be made to bring the outlet opening 114 towards the axis A with a front portion comprising the outlet opening 114 formed by a convex surface 117 By bringing the outlet opening 114 closer together in the convex surface 117, the longitudinal dimension l between the axis A and the end of the second section 125 can be made smaller than 15mm, preferably smaller than 12.5mm, more preferably smaller than 10mm. To make the outlet duct 120 even more compact, the height h of the first section 124 along the axis A between the first end 121 and the top of the passage 123 can be made less than 15mm, preferably less than 12.5mm, more preferably. less than 10mm.

The connection hole 140 can be made in the base body 110 to facilitate the attachment of the outlet duct 120 to the base body. In the present example, the connection hole 140 is located on the front half of the finger cot 120 and passes through between an inner surface and an outer surface of the finger cot 120. The minimum distance d between a first point, said first point being a point of the connection hole 140 on the outer surface of the finger cot 130, and a second point, said second point being a point of the outlet opening 114 on the outer surface of the base body, may be less than 12mm, preferably less than 10mm, more preferably less than 8mm.

The connection hole 140 can be configured to receive and retain the hooking pin 151, 152, 153. The connection hole 140 can be defined by a first portion 141 and a second portion 142. The first portion 141 can be a portion internal opening onto the internal surface of the base body 110, on the internal surface of the finger cot 130 in Figs.2A-2B. The second portion 142 may be an outer portion opening onto the outer surface of the base body 110, on the outer surface of the finger cot 130 in Figs.2A-2B.

The first portion 141 of the connection hole can be sized to receive the rod 152 of the hooking pin. The second portion 142 of the connection hole can be larger and be sized to receive the cap 153 of the hooking pin. Additionally, the second portion 142 and the cap 153 can be configured so that the surface of the end of the cap 153 is flush with the outer surface of the base body 110, flush with the outer surface of the finger cot 130 in Figs.2A. -2B. Thus, in the present example, the surface of the end of the cap 153 is not perpendicular to the axis of the rod 151, but slightly inclined to follow the continuity of the external surface of the finger cot 130 surrounding the connection hole 140. .

In another preferred embodiment, the cap 153 may protrude or be recessed with respect to the outer surface of the finger cot 130 surrounding the connection hole 140. Alternatively or in addition, the cap 153 and the connection hole 140 may have cross sections of different shapes and the cap 153 can be introduced through the connection hole by pivoting the outlet duct 120 relative to its final position in the hooked state.

During fixing, the outlet duct 120 can be introduced into the cavity formed by the outer wall 111 of the base body. The second end 122 of the outlet duct can be oriented in the direction of the outlet opening 114. The hooking portion 150 is introduced into the connection hole 140. The cap 153 of the hooking pin can be pushed forcibly through the connection hole 140. In the present example, the cap 153 forcibly passes through the first portion 141 of the connection hole to to open into the second portion 142, the cross section of which is sufficient to receive it. In this position, the rod 152 of the hooking pin is placed in the first portion 141 of the connection hole, and the shoulder 151 can be located near, or in contact, with the internal surface of the finger cot 130.

At the same time, the second section 125 of the outlet duct 120 can be inserted between the guide tabs 160. The guide tabs 160 can thus guide the outlet duct so that the second end 122 of the outlet duct and the outlet opening 114 of the base body is corresponding. The hooking pin 151, 152, 153 fixed through the connection hole 140 can prevent the translation of the outlet duct 120 relative to the finger cot 130 along the axis A. The guide tabs 160 can prevent the rotation of the duct from outlet 120 with respect to the base body 110 around the axis A.

In another preferred embodiment, the outer surface of the finger cot 130 is provided with reliefs to allow better friction with a user's finger. The cap 153 of the fastening post can be configured by its shape and / or its size to form part of the reliefs. For example, the reliefs are formed by indentations in the outer surface of the finger cot and the cap 153 is sized to cooperate with the connection hole 140 to form a substantially similar indentation.

In addition, a portion of the hooking pin 151, 152, 153, in the hooked state, can be visible from the outside of the diffuser 100, and can have a shape and / or a color

recognizable to serve as a means of identification by the user. In this way, the attachment post 151, 152, 153 can have the dual function of identifier and attachment means. The shape and / or color of the attachment post may indicate a type of product, an origin of the product, precautions for using the product, packaging of the product, etc.

Figure 3 illustrates a longitudinal sectional view of the diffuser according to another exemplary embodiment of the invention. The diffuser 300 includes a base body 310 and an outlet duct 320.

The base body 310 may include an outer wall 311. The outer wall 311 may form a cavity, and the outlet duct 320 may be fully or partially housed in the cavity formed by the outer wall 311, fully in the present example. The outer wall 311 can include concave and / or convex parts.

Diffuser 300 is a pressure vessel diffuser. The pressure vessel can include a cylindrical end. To cooperate with the cylindrical end of the container, a lower part of the outer wall 311 of the base body can have a symmetry of rotation around axis A in the state attached to the container. The base body 310 can be configured to be fixed to the pressure vessel via a fixing ring 312. In the present example, the fixing ring 312 is provided with a series of gadroons distributed evenly around the periphery. an inner surface of the outer wall 311 of the base body. Fixing ring 312 may be adapted to snap behind a rolled edge of the upper end of the pressure vessel.

The base body 310 may have a finger cot 330 intended to be depressed by the user to actuate a valve of the pressure vessel. The outer wall 311 of the base body can be pierced with a finger cot opening in which the finger cot 330 sits. The finger cot 330 can be attached to the rest of the base body 310 by a tab 331 at the rear of the finger cot 330 which serves as a hinge so that the finger cot 330 pivots about an axis transversely passing through the tongue 331.

An outlet opening 314 can be made in the outer wall 311 of the base body. The outlet opening 314 can be configured so that product withdrawn from the pressure vessel exiting the outlet duct 320 passes through it. In the embodiment of Fig.3, the finger cot opening is joined to the outlet opening 314 at the front of the base body 310. In another embodiment, an arch may separate the opening from the base body. exit from the finger cot opening so that the structural strength of the top of the base body 310 is enhanced.

The base body 310 includes a connection hole 340a, 340b. In the present example, there are two connection holes 340a, 340b provided to the finger cot 330. The two connection holes 340a, 340b can be located towards the front of the finger cot 330 in the longitudinal plane of the diffuser passing through the axis A The two connection holes 340a, 340b may pass through between an outer surface of the finger cot 330 and an inner surface of the finger cot 330 and may extend substantially parallel to the axis A. The connection holes 340a, 340b may be defined by a cylindrical wall which extends away from an internal surface of the finger cot 330 in a direction substantially parallel to the axis A. Those skilled in the art will understand that multiple variations of the connection holes 340a, 340b can be implemented by varying, for example, the number, dimensions, positioning, or profile of the connection holes.

The connection holes 340a, 340b can be configured to cooperate with a portion of the outlet duct 320. In the present example, the outlet duct 320 can comprise two hooking portions 350a, 350b intended to be introduced into the connection holes. 340, 340b corresponding so that the outlet duct 320 is hooked to the base body. The outlet duct 320 can be retained by the two hooking portions 350a, 350b introduced into the corresponding connection holes 340a, 340b by fitting, gluing, heat sealing, soldering, etc. The outlet duct 320 placed in the base body 310 has a passage 323 between a first end 321 and a second end 322. The first end 321 is configured to cooperate with the valve of the pressure vessel. The second end 322 is configured for the outlet of the product contained in the pressure vessel. In the hooked state of the outlet duct 320 to the base body 310, the second end 322 is oriented to correspond to the outlet opening 314. The second end 322 may be floating relative to the outlet opening 314. The outlet duct 320 can be divided between a first substantially rectilinear section 324 and a second section 325 inclined relative to the first. The first section 324 can start at the first end 321 and end at the junction with the second section 325. The second section 325 can start at the junction with the first section 324 and end at the second end 322. The first section 324 and the second section 325 can form the passage 323 between the first end 321 and the second end 322.

The two hooking portions 350a, 350b of the outlet duct 320 can extend away from the second section 325 of the outlet duct, substantially parallel to the axis A, in the direction of the finger cot 330. When fixing, the outlet duct 320 can be introduced into the cavity formed by the wall 311 of the base body. The second end 322 of the outlet duct can be oriented towards the outlet opening 314. The hooking portions 350a, 350b intended for hooking the outlet duct 320 to the base body can be inserted into the connection holes 340a. , 340b corresponding before being attached to each other by gluing, interlocking, heat sealing, welding. Thanks to the two connection holes 340a, 340b cooperating with the two hooking portions 350a, 350b of the outlet duct, the rotation of the outlet duct 320 relative to the base body 310 can be blocked. Those skilled in the art will understand that this rotation can be prevented alternately by modifying the number and / or the shape of the portions introduced and of the corresponding connection holes.

Figure 4 illustrates a longitudinal sectional view of the diffuser according to another exemplary embodiment of the invention. The diffuser 400 includes a base body 410 and an outlet duct 420.

The base body 410 may include an outer wall 411. The outer wall 411 may include concave portions forming a cavity, and the outlet duct 420 may be housed entirely in the cavity formed by the outer wall 411. To cooperate with one end cylindrical of a pressure vessel provided with a valve, a lower part of the outer wall 411 of the base body may exhibit rotational symmetry about an axis A in the state attached to the vessel. The base body 410 may be configured to be attached to the pressure vessel via a securing ring 412. In the present example, the securing ring 412 is provided with a continuous rib on the periphery of a. inner surface of the outer wall 411 of the base body such that the continuous rib can snap behind a rolled edge of the upper end of the pressure vessel.

The base body 410 may have a finger cot 430 intended to be pushed in by the user, said finger cot 430 being formed by a finger cot opening 413 in the outer wall 411 of the base body. The finger cot 430 can be attached to the rest of the base body 410 by a tab 431 at the front of the finger cot 430 which acts as a hinge.

An outlet opening 414 can be made in the outer wall 411 of the base body. The outlet opening 414 can be configured so that the product withdrawn from the pressure vessel exiting the outlet duct 420 passes through it.

The base body 410 includes a connection hole 440. In the present example, there is a connection hole 440 passing through the finger cot 430. The connection hole 440 may be located towards the rear of the finger cot 430 in the longitudinal plane of the finger cot. diffuser passing through the axis A. The connection hole 440 may pass through between an external surface of the finger cot 430 and an internal surface of the finger cot 430 and extend substantially towards the center of the base body 410. The connection hole 440 can be configured to facilitate attachment of outlet duct 420 to base body 410.

The outlet duct 420 placed in the base body 410 has a passage 423 between a first end 421 and a second end 422. The first end 421 is configured to cooperate with the valve of the pressure vessel. The second end 422 is configured for the outlet of the product contained in the pressure vessel. In the hooked state of the outlet duct 420 to the base body 410, the second end 422 is oriented to correspond to the outlet opening 414. The second end 422 can be floating relative to the outlet opening 414. .

The outlet duct 420 can be divided between a first substantially rectilinear section 424 and a second section 425 inclined with respect to the first. The first section 424 and the second section 425 can form the passage 423 between the first end 421 and the second end 422. To allow the installation of a nozzle, the second section 425 can be provided on the side of the second end 422 of a nozzle housing 426, said nozzle housing 426 being able to be formed by an annular space between an inner duct surrounded by a cylindrical wall of the second section 425.

To hook the outlet duct 420 to the base body 410 in the embodiment of Fig. 4, the outlet duct 420 comprises a hooking portion 450. The hooking portion 450 can be substantially cylindrical and extend. towards the rear of the finger cot 430, in the hooked state, from the top of the first portion 424 of the outlet duct. The hooking portion 450 may be provided with a part configured to cooperate with a part or a complementary element such that the outlet duct 420 is hooked to the base body 410.

The hooking portion 450 can include a fixing hole 451 configured to cooperate with a fixing means 455. The fixing hole 451 can be blind or through, smooth or threaded. The fastening means 455 may be a screw, bolt, rivet, etc. During fixing, the outlet duct 420 can be introduced into the cavity formed by the outer wall 411 of the base body. The second end 422 of the outlet duct may be oriented in the direction of the outlet opening 414. The second section 425 of the outlet duct 420 can be inserted between guide tabs 460. The guide tabs 460 can thus guide the conduit. outlet 420 so that the second end 422 of the outlet duct and the outlet opening 414 of the base body are corresponding.

These guide tabs 460 can be located on the internal surface of the external wall 411 of the base body and extend on either side of the blade of the outlet opening 414 of the outlet duct and in the direction of the axis A so as to grip the second section 425 of the outlet duct. The two guide tabs 460 are placed opposite each other, preferably symmetrically with respect to the longitudinal plane parallel to the axis A and passing through the center of the connection hole 440 and of the outlet opening. 414.

The fixing hole 451 can be aligned with the connection plug 440. In this way the fixing means 455 can be inserted through the connection hole 440 to cooperate with the fixing hole 455 and hook the outlet duct 420 to the body. base 410. The connection hole 440 can be configured so that, in the hooked state, the fixing means 455 is flush with the external surface of the finger cot 430 surrounding the connection hole 440.

Figure 5 illustrates a longitudinal sectional view of the diffuser according to an exemplary vane embodiment of the invention. The diffuser 500 includes a base body 510 and an outlet duct 520.

The base body 510 may include an outer wall 511. The outer wall 511 may include concave portions forming a cavity, and the outlet duct 520 may be housed entirely in the cavity formed by the outer wall 511. In the present example, the outer wall 511 is substantially cylindrical. To cooperate with a cylindrical end of a pressure vessel provided with a valve, a lower part of the outer wall 511 of the base body may have rotational symmetry about an axis A in the state attached to the vessel. The base body 510 can be configured to be fixed to the pressure vessel via a fixing ring 512. In the present example, the fixing ring 512 is provided with a series of gadroons distributed evenly around the periphery. an inner surface of the outer wall 511 of the base body so that the series of gadroons can snap behind a rolled edge of the upper end of the pressure vessel.

The base body 510 may have a finger cot 530 intended to be pushed in by the user, said finger cot 530 being formed by a finger cot opening 513 in the outer wall 511 of the base body. The finger cot 530 can be attached to the rest of the base body 510 by a tab 531 on the back of the finger cot 530 which acts as a hinge.

An outlet opening 514 can be made in the outer wall 511 of the base body. The outlet opening 514 can be configured so that product withdrawn from the pressure vessel exiting the outlet duct 520 passes through it.

The base body 510 includes a connection hole 540. In the present example, there is a connection hole 540 passing through the outer wall 511 of the base body below the outlet opening 514 remote from the opening of the base body. outlet 514. The connection hole 540 may be located in the longitudinal plane of the diffuser passing through the axis A. The connection hole 540 may be through between an outer surface and an inner surface of the outer wall 511 of the base body and extend substantially parallel to the axis of the outlet opening 514.

The outlet duct 520 placed in the base body 510 has a passage 523 between a first end 521 and a second end 522. The first end 521 is configured to cooperate with the valve of the pressure vessel. The second end 522 is configured for the outlet of the product contained in the pressure vessel. In the hooked state of the outlet duct 520 to the base body 510, the second end 522 is oriented to correspond to the outlet opening 514. The second end 522 may have a fixed position relative to the opening of the outlet. exit 514.

The outlet duct 520 can be divided between a first section 524 which is substantially rectilinear and a second section 525a, 525b, 525c, 525d which is substantially perpendicular to the first in a rest position of the finger stand 530. The first section 524 and the second section 525a , 525b, 525c, 525d can form the passage 523 between the first end 521 and the second end 522.

The second section 525a, 525b, 525c, 525d may have a cylindrical overall shape and include, on its outer surface near the junction with the first section 525, a first notch 525d defining a first deformable portion of the second section 525a, 525b, 525c, 525d. The second section 525a, 525b, 525c, 525d can also include a second notch 525c located near the internal surface of the external wall 511 of the base body defining a second deformable portion of the second section 525a, 525b, 525c, 525d. The first notch 525d and the second notch 525c can define a movable part 525b of the passage 523, said movable part 525b being able to accompany the vertical movements of the first section 524. The first section 525a, 525b, 525c, 525d can include a fixed part 525a with respect to the outlet opening 514, said fixed part 525a possibly being a part defined between the second notch 525c and the second end 522 of the outlet duct.

To hook the outlet duct 520 to the base body 510 in the embodiment of Fig. 5, the outlet duct 520 includes a hooking portion 550. The hooking portion 550 may consist of a plug attached to the plug. fixed part 525a of the second section of the outlet duct, and extending substantially parallel thereto at a distance. The hooking portion 550 can be configured to be inserted into the connection hole 540 and keep the outlet conduit 520 hooked to the base body 510 by interlocking, gluing, heat sealing, soldering, etc. Those skilled in the art will understand that the number, shape, and dimensions of the plug can be varied depending on the desired attachment. The hooking portion 550, in the hooked state of the outlet duct 520 to the base body 510, can maintain the position of the second end 522 of the outlet duct fixed relative to the outlet opening. In addition, the hooking portion 550 can block the rotation of the outlet duct 520 relative to the base body.

The outlet conduit 520 may include an attachment portion 526 for securing the outlet conduit 520 to the finger cot 530. The securement portion 526 may be configured to attach to an attachment 532 provided to the finger cot 530. In the present example, the fixing element 532 is a plug projecting from the internal surface of the finger cot 530 extending substantially vertically towards the top of the first section 524 of the outlet duct. The attachment portion 526, in Fig. 5, is a cylindrical wall projecting from the top of the first section 524 of the outlet duct extending substantially vertically towards the internal surface of the finger cot 530. The attachment portion 526 and the element fixing 532 can be designed to cooperate mechanically and to fix the finger cot 530 to the outlet duct 520 by fitting, gluing, heat sealing, welding.

Preferably, the axes of the fixing element 532, of the fixing portion 526, of the first section 524 of the outlet duct, and of the valve of the pressure vessel are coaxial. User pressure on the finger cot 530 can cause a substantially vertical movement of the first section 524 of the outlet duct and actuation of the pressure vessel valve. The vertical displacement of the first section 524 of the outlet duct is followed by the bending of the deformable sections 525c, 525d of the second section of the outlet duct 520. In the actuated position of the finger cot, the movable part 525b of the second section can be inclined relative to the first section 524 of the outlet duct. Actuation of the valve will cause the product contained in the pressure vessel to exit through the second end 522 of the outlet duct through passage 523 of the outlet duct.

Although the principles of the invention have been set forth above in connection with specific embodiments, it should be understood that this description is given merely by way of reference. exemplary and does not constitute a limitation on the scope of protection which is determined by the claims appended hereafter.

Claims

1. Diffuser for pressurized container fitted with a valve, in particular for an aerosol generator, which diffuser is fitted with:

a base body having a finger cot intended to be pushed in by the user to actuate the valve, and having an outlet opening for the outlet of the product contained in the container, and

of an outlet duct placed in the base body, which duct has a passage between a first end, said first end being configured to cooperate with the valve of the pressure vessel, and a second end, said second end being configured for the outlet of the product contained in the pressure vessel and corresponding to the outlet opening of the base body, in which the base body comprises a connection hole at a distance from the outlet opening, said connection hole being through between an outer surface of the base body and an inner surface of the base body, and configured to facilitate attachment of the outlet duct such that the outlet duct can be hooked to the base body.

2. Diffuser according to claim 1, wherein the outlet duct and the base body are two separate parts, and wherein the outlet duct, in the state attached to the base body, comprises a portion inserted into the hole. connection.

3. A diffuser according to any one of claims 1 or 2, wherein the outlet duct is hooked to the base body through the connection hole mechanically.

4. Diffuser according to any one of the preceding claims, wherein the connection hole passes through between an outer surface of the finger cot and an inner surface of the finger cot, preferably transversely to the outer and / or inner surface of the finger cot.

5. Diffuser according to claim 3, optionally in combination with claim 4, in which the outlet duct is provided with a hooking pin such that the hooking pin and the outlet duct are integrated in one piece. .

6. Diffuser according to the preceding claim, wherein the fastening pin comprises a rod, a shoulder, and a cap connected to the outlet duct by the rod, said rod terminating opposite the cap by G shoulder.

7. Diffuser according to the preceding claim, wherein the hooking pin is configured to cooperate with the connection hole such that, in the hooked state, the internal surface of the base body and the external surface of the base body are placed between the cap of the hooking stud and the shoulder of the hooking stud.

8. Diffuser according to any one of claims 5 to 7,

wherein the connection hole is defined by a first portion and a second portion, said first portion being an internal portion opening onto the internal surface of the base body, said second portion being an external portion opening onto the external surface of the base body , and

wherein the first portion and the second portion of the connection hole are configured such that, in the hooked state, the surface of the end cap of the hooking post is flush with the outer surface of the base body.

9. Diffuser according to any one of claims 5 to 8,

in which the hooking post comprises an asymmetric or blocky cross section,

wherein the connection hole comprises an asymmetric or polyhedral cross section corresponding to the asymmetric or polyhedral cross section of the hooking post, said asymmetric or polyhedral cross sections of the hooking post and the connecting hole being selected such that, in the hooked state, the rotation of the outlet duct relative to the base body is blocked.

10. Diffuser according to any one of claims 5 to 9, wherein the outlet duct is provided with a hollow compartment between the catching pin and the passage between the first end and the second end.

11. A diffuser according to any one of claims 4 to 10, wherein the hole

connection is located on a front half of the finger cot viewed towards the exit of the product from the second end of the outlet duct, in the hooked state.

12. The diffuser according to any one of claims 4 to 11, wherein a portion of the connection hole opening onto the internal surface of the finger cot is configured to be coaxial with the valve of the pressure vessel.

13. Diffuser according to any one of the preceding claims, in which the second end of the outlet duct is floating relative to the base body.

14. Diffuser according to any one of the preceding claims, wherein the base body consists of a wall forming a cavity, said wall comprising a convex front surface seen towards the outlet of the product from the second end of the duct. outlet, in the hooked state, said convex front surface comprising the outlet opening corresponding to the second end of the outlet duct, in the hooked state.

15. A diffuser according to claims 4 and 14, optionally in combination with any one of claims 5 to 13, wherein the minimum distance between a first point, said first point being a point of the connection hole on the outer surface of the finger cot. , and a second point, said second point being a point of the exit opening on the outer surface of the base body, is less than 12mm, preferably less than 10mm, more preferably less than 8mm.

16. Diffuser according to any one of claims 5 to 15, wherein a portion of the hooking pin, in the hooked state, is visible from the outside of the diffuser, and has a shape and / or a color recognizable for serve as a means of identification by G user.