Part for the assembly of a dispensing head for a composition container

Abstract

Component for a Dispensing Head for a Composition Container. The invention relates to a component (1) for dispensing a dispensing head for a composition container, the head comprising: a chamber (3) for rotating the composition, an inlet channel (4) for the composition into the chamber, and an outlet orifice (5) for the composition, characterized in that the component (1) is a single-piece structure comprising: a first structural part (11) comprising the inlet channel, the chamber, and the outlet orifice, the chamber comprising an opening (31) opposite the outlet orifice; a second structural part (12) comprising a means for sealing (6) the opening of the chamber; and a connecting portion (13) between the first and second structural parts allowing the sealing means to be positioned opposite the opening of the chamber. Figure to be published with the abbreviation: Fig. 1

Description

Title of the invention: Component for the dispensing head of a composition container

[0001] The present invention relates to the field of distribution heads for containers comprising a composition to be sprayed and more particularly to the field of the realization of such distribution heads.

[0002] The spraying of a composition stored in a container is conventionally carried out via a nozzle or dispensing head mounted on an orifice of that container. To optimize this spraying process, the dispensing head may incorporate a chamber for rotating the composition. This rotating chamber is positioned between, on the one hand, an inlet conduit for the composition from the container and, on the other hand, an orifice for spraying the composition outwards. This rotating chamber is configured to create a swirling motion that accelerates the composition during spraying.To achieve this swirling motion, the rotating chamber has, on the one hand, a circular cross-section which decreases near the external spray orifice and, on the other hand, a duct for the composition entering the chamber which is oriented along an axis tangential to the inner circular wall of the rotating chamber.

[0003] Structurally, the rotation chamber of such a nozzle or dispensing head has an internal volume with a cross-section larger than each of its two associated orifices, namely the composition inlet orifice and the composition spray outlet orifice. Therefore, producing a dispensing head incorporating such a rotation chamber is complex. One solution for producing this dispensing head involves additive manufacturing processes. However, while this technological solution is suitable for prototype production, it is difficult to scale up to industrial production of such dispensing heads.A more suitable solution for large-scale manufacturing would be to produce the distribution heads as two injection-molded parts, each corresponding to a complementary half of the rotation chamber. These two parts are then assembled to form the distribution head, creating and closing the rotation chamber. While this manufacturing solution is easily adaptable to an industrial setting, it has the drawback of not allowing control over the surface continuity of the inner wall. rotation chamber. Indeed, during the assembly of the parts of the distribution head and the closing of the rotation chamber, the appearance of a misalignment in this assembly and / or the presence of a surface continuity defect at the level of the inner wall of the rotation chamber are likely to cause a disturbance in the circulation of the composition inside the chamber so that the quality of the spraying is altered.

[0004] The present invention aims to overcome these drawbacks by proposing a solution which allows the production of distribution heads on an industrial scale while ensuring that the rotation chambers of the heads thus produced ensure a functional and optimized circulation of the composition to be sprayed.

[0005] The invention relates to a component for a dispensing head intended to be mounted on a composition container, the dispensing head comprising: - a chamber for rotating the container's contents, - an inlet channel for the composition into the rotation chamber, and - an outlet for the composition to exit to the outside, this outlet being positioned at one end of the rotation chamber, characterized in that the part is a single-piece structure comprising: - a first structural part comprising the inlet channel, the rotation chamber and the outlet orifice of the composition, the rotation chamber comprising an opening arranged opposite the outlet orifice to the outside, this opening having a cross-section greater than or equal to the largest cross-section of the rotation chamber, - a second structural part comprising a means of watertight partitioning of the opening of the rotation chamber, - a connecting portion between the first structural part and the second structural part allowing a movement of the second structural part relative to the first structural part so as to allow the positioning of the watertight partitioning means opposite and / or through the opening of the rotation chamber.

[0006] The invention also relates to a method for making a distribution head from a part according to the invention, characterized in that the method comprises: - a bending step of the connecting portion between the first structural part and the second structural part, - a step of positioning the watertight partitioning device opposite the opening of the rotation chamber, - a locking step of the watertight partitioning means with the opening of the rotation chamber.

[0007] The invention further relates to a distribution head for a pressurized composition container characterized in that this distribution head is made from a part according to the invention and a method according to the invention.

[0008] The invention will be better understood from the following description, which relates to a preferred embodiment, given by way of non-limiting example, and explained with reference to the accompanying schematic drawings, in which:

[0009] [Fig. 1] represents a schematic illustration of an example of a part according to the invention for the realization of a distribution head in a three-dimensional view,

[0010] [Fig.2] represents a schematic illustration of an example of a part according to the invention according to a sectional view in a plane passing through the axis of the cylindrical portion of the rotation chamber,

[0011] [Fig.3] represents a schematic illustration of an example of a part according to the invention according to a sectional view in a plane perpendicular to the axis of the cylindrical portion of the rotating chamber,

[0012] [Fig.4] represents a schematic illustration of an example of a part according to the invention from a superior perspective,

[0013] [Fig. 5] represents a schematic illustration of an example of a distribution head formed by a part according to the invention and integrated into a housing casing according to a sectional view in a plane passing through the axis of the cylindrical portion of the chamber for rotating the part,

[0014] [Fig.6] represents a schematic illustration of an example of a distribution head formed by a part according to the invention and integrated into a housing casing according to a sectional view in a plane perpendicular to the axis of the cylindrical portion of the chamber for rotating the part.

[0015] The invention relates to a part 1 for the embodiment of a dispensing head 10 intended to be mounted on a composition container, the dispensing head 10 comprising: - a chamber 3 for rotating the composition of the container, - an inlet channel 4 of the composition in the chamber 3 of the setting rotation, and - an outlet 5 of the composition to the outside, this outlet 5 being positioned at one end of the rotation chamber 3, characterized in that the part 1 is a monobloc structure comprising: - a first structural part 11 comprising the inlet channel 4, the rotation chamber 3 and the outlet orifice 5 of the composition, the rotation chamber 3 comprising an opening 31 disposed opposite the outlet orifice 5 to the outside, this opening 31 having a section greater than or equal to the largest section of the rotation chamber 3, - a second structural part 12 comprising a means of watertight partitioning 6 of the opening 31 of the rotation chamber 3, - a connecting portion 13 between the first structural part 11 and the second structural part 12 allowing a movement of the second structural part 12 relative to the first structural part 11 so as to allow the positioning of the watertight partitioning means 6 opposite and / or through the opening 31 of the rotation chamber 3.

[0016] Part 1 of the invention, which enables the production of a dispensing head 10, is thus configured to allow the formation of a rotating chamber 3 from two portions supported by respective structural parts 11, 12 of the same monobloc structure formed by part 1 of the invention. Each of the two portions of the rotating chamber 3 is arranged to allow the construction of a part 1 of the invention by injection molding, i.e., a large-scale production technology. Indeed, a first portion of the rotating chamber 3, which includes the outlet 5 of the composition and the majority of the volume of the rotating chamber 3, can be produced by injection molding using a mold portion adapted to be easily removed from the first portion of the chamber 3 through the opening 31 located opposite the outlet 5 to the outside.The second portion of the rotating chamber 3, which carries the watertight partitioning means 6 for the opening 31 of the chamber 3, has an arrangement substantially similar to that of a complementary plug for the opening 31 of the rotating chamber 3, used to close this opening 31. This second portion of the rotating chamber 3 can also be produced by injection molding. Joining the two portions of the rotating chamber 3 by deforming the connecting portion 13 thus positions the watertight partitioning means 6 across the opening 31 of the rotating chamber 3, so that this opening 31 is closed by the partitioning means 6. Preferably, the connecting portion 13 of part 1 has a longitudinal structure, for example, substantially straight, between the two structural parts 11 and 12 of part 1 of the invention.This portion of the connection 13 is likely to have a structural arrangement in the form of a band, for example made of a material which allows its deformation, in particular a bending deformation, or even a folding of its structure, without breaking.

[0017] According to an example relating to a variant construction of part 1 for embedding a distribution head 10 according to the invention, the rotation chamber 3 has a continuous surface without any trace of a joint. The chamber The rotation chamber 3, formed by the joining and assembly of its two portions supported by respective parts 11 and 12 of part 1 of the invention, comprises an inner wall, the portion of which, specifically intended for rotating the sprayed composition, is produced as a single piece supported by a single structural part 11 of part 1 of the invention. This construction ensures a continuous surface of the rotation chamber wall and thus optimizes the functional circulation of the composition to be sprayed through the chamber 3. The surface of the sealed partitioning means 6, once positioned across the opening 31 of the rotation chamber 3, forms a portion of the inner wall of chamber 3 that partitions the internal volume of chamber 3 without contributing to the vortexing of the composition to be sprayed.Indeed, the composition to be sprayed which passes through the rotating chamber 3 is not intended to be directed along a particular displacement path thanks to this portion of the surface of the inner wall of the chamber 3. Part 1 of the invention thus allows the creation of a rotating chamber 3 in two portions without this impacting the qualities of vorticity and circulation of the composition to be sprayed which passes through this chamber 3.

[0018] The fabrication of a part 1 of the invention in the form of a single-piece structural element in which the first 11 and second 12 structural parts are held together by a connecting portion 13 allows the production, in particular by injection molding, of a single element sufficient for the construction of a dispensing head 10 capable of being mounted and installed on a container for spraying a composition. The connecting portion 13 thus allows the fabrication of two portions of the rotating chamber 3, firstly, within the framework of a single injection molding operation and, secondly, in the form of portions of the chamber 3 that remain joined before the assembly of this chamber 3, so that these two portions of the chamber 3 remain captive until the positioning of the airtight partitioning means 6 opposite and / or through the opening 31 of the rotating chamber 3.

[0019] According to an example relating to another construction variant of part 1 for a distribution head 10 according to the invention, the rotating chamber 3 comprises at least one cylindrical portion 301 with a circular cross-section, the axis of which is perpendicular to the plane of the opening 31 of the rotating chamber 3, the inlet channel 4 being arranged along an axis substantially tangential to the inner surface of the cylindrical portion 301 with a circular cross-section of the rotating chamber 3. The cylindrical portion 301 with a circular cross-section of the chamber 3 essentially corresponds to the portion of the inner wall of the chamber 3 that rotates the composition to be sprayed and circulates it to The outlet 5 directs the composition outwards. The tangential orientation of the inlet channel 4 inside the rotating chamber 3 optimizes the projection of the composition to be sprayed, causing it to move along the cylindrical portion 301 of the inner wall of the chamber 3 and undergo a rotational movement, forming a vortex around the axis of the cylinder of the chamber 3 until it reaches the outlet 5. During this vortexing, the circles of movement of the composition are framed and defined by the circular cross-section of the rotating chamber 3. Preferably, the outlet of the inlet channel 4 in the inner volume of the rotating chamber 3 is located near the opening 31 of the rotating chamber 3, that is, at a distance from the outlet 5 of the composition to the outside.This arrangement allows for a greater stroke length along the cylindrical portion 301 with circular cross-section of chamber 3 to rotate and swirl the composition to be sprayed before it reaches the outlet 5 to the outside.

[0020] According to an example relating to another variant of the construction of the part 1. In the embodiment of a distribution head 10 according to the invention, which can be combined with one or more of the variants detailed previously, the opening 31 of the rotating chamber 3 has dimensions substantially identical to a section of the rotating chamber 3 arranged in a plane parallel to the plane of the opening 31 and comprising the inlet of the inlet channel 4 into the rotating chamber 3. This construction of part 1 of the invention allows for an arrangement in which the opening 31 of the rotating chamber 3 has dimensions substantially identical to the cylindrical portion 301 with a circular cross-section of the rotating chamber 3.Such a construction makes it possible to ensure that the opening 31 of the rotating chamber 3 is sized at least identically to the portion with the largest cross-section of the chamber 3 so that, in the context of the production of part 1 of the invention by injection, the portion of the mold intended for the production of the inner wall of the rotating chamber 3 and in particular of the cylindrical portion 301 with circular cross-section of the chamber 3 is able to be easily removed through the opening 31 of this chamber 3. .

[0021] According to an example relating to another variant of the construction of the part 1. For the implementation of a distribution head 10 according to the invention and capable of being combined with one or the other of the variants detailed above, the rotating chamber 3 comprises at least one axis of symmetry passing through the outlet 5 outwards and perpendicular to the plane of the opening 31 of the rotating chamber 3. Such an arrangement of the rotating chamber 3, particularly when This is coupled to a construction of chamber 3 with a circular cross-section, allowing for the creation of a chamber 3 profile, a portion of which 302 has the shape of a cone of revolution or a shape similar to that of an ogive or a shell head cone. The end of this arrangement then includes the outward exit orifice 5 of the composition, such that the cross-section of the exit orifice 5 has a diameter that is at most identical to the smallest diameter of the rotating chamber 3.This construction of chamber 3, whose inner wall presents a surface of revolution around an axis of symmetry passing through the outlet orifice 5, allows the realization of a rotating chamber 3, of which, on the one hand, at least a first portion corresponds substantially to a cylinder of revolution and, on the other hand, at least a second portion corresponds to a surface of revolution in the extension of the cylinder of revolution of the first portion and of which the outlet orifice 5 forms the apex.

[0022] According to an example relating to another construction variant of part 1 for the realization of a distribution head 10 according to the invention and capable of being combined with either of the variants detailed above, the opening 31 of the rotating chamber 3 of the first structural part 11 and the watertight partitioning means 6 of the second structural part 12 are arranged on the same face of part 1. According to this construction variant, when part 1 of the invention is produced, and prior to the positioning of the partitioning means 6 opposite the opening 31, the opening 31 and the partitioning means 6 are positioned on either side of the connecting portion 13 of part 1 so that the opening 31 and the partitioning means 6 are arranged on the same face of part 1.Thanks to this construction, when the connecting portion 13 is deformed, the face of the part 1 also supports this deformation so that the opening 31 and the partitioning means 6 arranged on this same face end up facing each other.

[0023] According to an example relating to another construction variant of the part 1 for embedding a distribution head 10 according to the invention, and capable of being combined with either of the variants detailed above, the watertight partitioning means 6 has a male arrangement intended to be inserted into the opening 31 of the rotating chamber 3. Such a construction of the partitioning means 6 in the form of a male arrangement allows its cooperation with the opening 31 of the chamber 3, which has the form of a female arrangement. This male / female cooperation between the partitioning means 6 and the opening 31 of the rotating chamber 3 is achieved by inserting the partitioning means 6 into at least a portion of the opening of the chamber 3. The male arrangement thus confers upon the partitioning means 6 The shape of a relief is located at the level of the second structural part 12 of the component 1 of the invention. Preferably, this relief corresponds to a plug configured to obstruct the opening 31 of the chamber 3 at the level of the first structural part 11 of the component 1 of the invention. By way of example, this partitioning means 6 has a cylindrical tubular arrangement of revolution whose shape is substantially complementary to the opening 31 and / or to a portion of the internal volume of the chamber 3 positioned at the level of this opening 31.

[0024] According to an example relating to another variant of the construction of the part 1. In the embodiment of a distribution head 10 according to the invention, which can be combined with the previously detailed variant, the male arrangement of the watertight partitioning means 6 has a cross-section with dimensions identical to or greater than the dimensions of the opening 31 of the rotating chamber 3. According to this construction variant, the male arrangement of the partitioning means 6 has a construction in which the partitioning means 6 is configured to be press-fitted into the opening 31 of the rotating chamber 3. This press-fitting ensures that the watertight assembly of the partitioning means 6 remains in the opening 31 of the chamber 3 despite the pressures that may be present inside the chamber 3 during the rotation and spraying of the composition.The forced insertion of the partitioning means 6 into the opening 31 of the chamber 3 can be easily carried out, either manually or mechanically within an industrial automation system, while being able to withstand pressures of up to approximately 7 to 9 bar. Preferably, the male arrangement of the partitioning means 6 has a cylindrical tubular shape of revolution so as to optimize the friction surfaces between the partitioning means 6 and the opening 31 of the rotating chamber 3 and thus limit the risk of disengagement or withdrawal of the partitioning means 6 from the opening 31 of the chamber 3.

[0025] According to an example relating to another variant of the construction of the part 1. In the embodiment of a distribution head 10 according to the invention and capable of being combined with some of the variants detailed previously, the male arrangement of the watertight partitioning means 6 comprises an annular bead 61 on its periphery, this bead 61 being intended to be in contact with at least a portion of the inner edge of the opening 31 of the rotating chamber 3. This annular bead 61 on the periphery of the partitioning means 6 allows for a locally enlarged diameter so that the interaction between the partitioning means 6 and the inner edge of the opening 31 of the rotating chamber 3 occurs through pressure contact and optimizes the sealing of the partition between the two portions of the rotating chamber 3. Alternatively and / Alternatively, the annular bead 61 can be configured for positioning against the outer peripheral edge of the opening 31 of the rotating chamber 3. In this way, the annular bead 61 also ensures contact around the entire circumference of the opening 31 of the rotating chamber 3, thus optimizing the sealing of the partition between the two portions of the rotating chamber 3. Alternatively and / or additionally, the annular bead 61 can also be configured to cooperate with an annular groove carried by the first structural portion 11 of part 1 and / or by the peripheral edge of the opening 31 of the rotating chamber 3.This cooperation between the annular bead 61 and an annular groove allows for optimization of the contact surface between the two portions of the rotating chamber 3 and thus reinforces the sealing of the partitioning achieved by inserting the partitioning means 6 into the opening 31 of the chamber 3. Additionally, this cooperation between the annular bead 61 and an annular groove can also form a clipping mechanism for the partitioning means 6 in the opening 31 of the chamber 3, allowing for signaling the end of the insertion stroke of the partitioning means 6 and / or the correct positioning of this inserted partitioning means 6.

[0026] According to an example relating to another construction variant of part 1 for embedding a distribution head 10 according to the invention, and which can be combined with either of the variants detailed above, the peripheral edge of the opening 31 of the rotating chamber 3 comprises a chamfer 310. Preferably, this chamfer 310 is arranged to have a larger diameter section facing outwards from the chamber 3 and a smaller diameter section facing inwards from the chamber 3. This arrangement of the chamfer 310 allows for guiding the insertion of the partitioning means 6 into the opening 31 of the chamber 3. Additionally, when the partitioning means 6 comprises an annular bead 61, this bead 61 can be positioned to bear against the surface of the chamfer 310 when the partitioning means 6 is inserted into the opening 31 of room 3.

[0027] According to an example relating to another construction variant of part 1 for a distribution head 10 according to the invention, and which can be combined with either of the variants detailed above, the connecting portion 13 is made in the form of a strip of material or a mixture of materials that allows it to be deformed by bending, or even folded. This connecting portion 13 can be produced by injection molding in conjunction with the production of part 1 of the invention. The material or mixture of materials used for the production of the connecting portion 13 can be identical to that used or that used for the remainder of part 1 of the invention. Similarly, this connecting portion 13 is capable of being produced by co-molding as part of the production of part 1 of the invention by injecting a material or mixture of materials which differs from the material used for the production of the remainder of part 1 of the invention.

[0028] According to an example relating to another variant of the construction of the part 1. In the realization of a distribution head 10 according to the invention and capable of being combined with one or the other of the variants previously detailed, the connecting portion 13 is made in the form of a strip of material between the first structural part 11 and the second structural part 12, this strip of material comprising at least one flexing zone 131, 132. The integration of at least one zone 131, 132 specifically dedicated to the deformation of the connecting strip 13 makes it possible to control the flexing or bending of the connecting strip 13 and in particular its deformation kinematics.The presence of at least one flexural zone 131, 132 allows for the imposition of a specific deformation kinematic of the connecting strip 13 and thus for the control of the displacement of the first structural part 11 relative to the second structural part 12 within the framework of the construction of the rotation chamber 3, in particular the stroke and / or the amplitude of this displacement. This control of the displacement of the two structural parts 11, 12 relative to each other thus allows for facilitated movement and optimized positioning according to a predetermined configuration of the partitioning means 6 opposite the opening 31 of chamber 3.

[0029] According to an example relating to another variant of the construction of the part 1. In the embodiment of a distribution head 10 according to the invention, which can be combined with the previously detailed variant, the connecting portion 13 is made in the form of a strip of material comprising at least two parallel bending zones 131, 132. Preferably, each of these at least two bending zones 131, 132 has a substantially rectilinear arrangement oriented along an axis perpendicular to the plane of deformation, in particular bending, of the connecting portion 13. The integration of several bending zones 131, 132 along the strip of material allows for the distribution of stresses related to the deformation of the connecting portion 13 in different locations within the structure of this connecting portion 13.This distribution of stresses generated by the deformation of the connecting portion 13 at several points in the structure makes it possible to limit the forces borne by the material under the effect of its deformation in each of the bending zones 131, 132 of the connecting portion 13. This limitation of the forces and stresses borne by the material thus limits the risk of failure of the connecting portion 13 during its deformation. Furthermore, the distribution of the deformation forces of the connecting portion 13 in each of the bending zones 131, 132. is carried out in such a way that the forces supported at each bending zone 131, 132 remain respectively below the material's tolerance threshold. This construction thus allows a cumulative deformation amplitude over the entire connection portion 13, the forces and stresses exerted on the material being less than those of a similar deformation of the connection portion 13 if it were carried out at a single deformation zone.

[0030] According to an example relating to another variant of the construction of the part 1. In the implementation of a distribution head 10 according to the invention, which can be combined with some of the variants detailed previously, at least one flexural zone 131, 132 is created by reducing the thickness of the strip forming the connecting portion 13. This reduction in material, located on the connecting portion 13, is preferably made in a straight line to form a line of weakness where the stresses and forces exerted during deformation of the connecting portion 13 are less significant. This construction of at least one flexural zone 131, 132 is particularly advantageous for facilitating the deformation of the connecting portion 13 when this connecting portion 13 is made of a material whose rigidity does not allow deformation of the connecting portion 13 without reducing its thickness.During the deformation of the connecting portion 13, the forces exerted on the material lead to at least one deformation preferentially localized in at least one area of ​​lower resistance. In this construction variant, such a flexural zone 131, 132 with a material line of reduced thickness creates a structure where the resistance to forces and stresses is lower, so that the material deformation is applied there preferentially. This line of weakness, in the form of a material reduction, thus allows for the precise positioning of at least one area 131, 132 of the connecting portion 13 capable of withstanding at least part of the deformation of the connecting portion 13.

[0031] According to an example relating to another variant of the construction of the part 1. Implementation of a distribution head 10 according to the invention and capable of being combined with the variant detailed above, the material reduction in the thickness of the strip corresponding to at least one flexural zone 131, 132 of the connecting portion 13 is achieved in the form of a groove comprising at least two lateral edges positioned on either side of the axis of the groove, the respective surfaces of these lateral edges being substantially arranged in planes inclined to each other. According to one example of the configuration, when the connecting portion 13 is deformed in a plane perpendicular to the main axis of the groove, the flexural zone 131, 132 supports a fold in its structure so that the groove is closed. by bringing its lateral edges closer together, possibly until the respective surfaces of the lateral edges of this groove come into contact. According to one construction example, in a plane perpendicular to the main axis of the groove, the lateral edges of the groove have a "V"-shaped arrangement. The spacing between the two lateral edges of the groove and their respective inclinations also allow for predetermining the amplitude of the bending deformation or the bend likely to occur at at least one bending zone 131, 132 of the connecting portion 13.

[0032] According to an example relating to another variant of the construction of the part 1 of realization of a distribution head 10 according to the invention and capable of being combined with some of the variants previously detailed, the part 1 includes at least one relief 14 disposed on the same face of the part 1 as the watertight partitioning means 6 so that, on the one hand, this at least one relief 14 is positioned near a first edge of at least one flex zone 131 of the connecting portion 13 and carries at least one abutment surface 141 and, on the other hand, a part 133 of the connecting portion 13 positioned at the level of the second edge of the flex zone 131 is arranged to be in contact with the abutment surface 141 of the at least one relief 14 during the deformation of the flex zone 131 of the connecting portion 13.In this construction variant, the relief 14 of part 1 is strategically positioned on the connecting portion 13 so as to create a thickness of material which limits, or even prevents, the deformation of the connecting portion 13 at the position of this relief 14. Furthermore, the positioning of the relief 14 also allows it to form an interface blocking the amplitude of at least part of the deformation of the connecting portion 13 when the watertight partitioning means 6 and the opening 31 of the rotating chamber 3 are brought together. This relief 14 includes, on the one hand, a base at its end in contact with the surface of the connecting portion 13, near an edge of a bending zone 131 and, on the other hand, a buttress surface 141 positioned on a face of the relief 14 oriented towards the bending zone 131 and disposed between the base of the relief 14 and its summit at one end at a distance from its base.This relief 14 thus creates a thickness over a portion of the connecting section 13 at which the connecting section 13 cannot be deformed. Therefore, the deformation forces and stresses exerted on the connecting section 13 result in deformation at a portion of the connecting section 13 outside the relief 14. Furthermore, by being positioned at an edge of a bending zone 131, the relief 14 is configured so that, during deformation of the connecting section 13 by bending the bending zone 131, one of its surfaces acts as a stop 141 against which a portion 133 of the deforming connecting section 13 can bear. At the first edge of a bending zone 131 of the connecting portion 13, the abutment surface 141 of the relief 14 creates a blocking interface that helps limit the amplitude of bending or folding of the connecting portion 13 at this bending zone 131. By blocking the deformation path of the bending zone 131, the relief 14 makes it possible to predefine the desired deformation amplitude at this bending zone 131. Once the deformation path of the bending zone 131 is blocked by a surface of the relief 14, the forces and stresses exerted on the connecting portion 13 to deform it encounter resistance at this bending zone 131, so that the deformation of the material of the connecting portion 13 is displaced to another part of the connecting portion 13 where the resistance to these forces and stresses is less significant.Once the deformation of the connecting portion 13, carried out primarily at the bending zone 131, is blocked by the relief 14, the material deformation is naturally applied at another zone of the connecting portion 13 until the positioning of the watertight partitioning means 6 opposite the opening 31 of the rotation chamber 3. It should be noted that, when the connecting portion 13 comprises two bending zones 131, 132, the blocking relief 14 is likely to be positioned at the edge of one of the two bending zones 131, 132. Preferably, this relief 14 is positioned at the edge of one of the bending zones 131, 132 which is located on the side of the bending zone 131 opposite to the second bending zone 132. For example, as illustrated in the attached figures, this relief 14 is positioned at the edge of the bending zone 131, 132 which is closest to the first structural part 11.. It should be noted that, alternatively, this relief 14 is also likely to be positioned between the two flexural zones 131, 132 of the connecting portion 13. It should also be noted that, alternatively or complementaryly, each of the two flexural zones 131, 132 of the connecting portion 13 is likely to be associated with a respective relief 14 to block the respective deformation of each of the flexural zones 131, 132 as soon as the expected amplitude of flexing or bending for each of these flexural zones 131, 132 is reached.

[0033] According to an example relating to another variant of the construction of the part 1. Implementation of a distribution head 10 according to the invention and capable of being combined with the variant detailed previously, at least one relief 14 is disposed along the entire length of the first edge of at least one flexural zone 131. In this construction variant, the construction of the at least one relief 14 and its positioning parallel to the axis of the associated flexural zone 131 allows for the presence of a stop surface 141 along the entire length of the flexural zone 131, thus optimizing the blocking and of the limitation of the amplitude of deformation of the portion of connection 13 at the level of this flexural zone 131.

[0034] According to an example relating to another variant of the construction of the part 1. In the realization of a distribution head 10 according to the invention and capable of being combined with some of the variants detailed previously, at least one stop surface 141 of at least one relief 14 is arranged in a plane substantially perpendicular to the plane of the connecting portion 13. This arrangement of the stop surface 141 of at least one relief 14 thus makes it possible to block the deformation of the associated bending zone 131 as soon as the amplitude of the deformation between the parts of the connecting portion 13 located on either side of the bending zone 131 has reached 90°.It should be noted that, when the connecting portion 13 comprises two parallel bending zones 131, 132, the combination of each of these bending zones 131, 132 with a mechanism for blocking the respective deformation of these bending zones 131, 132, once this deformation reaches an amplitude of 90°, allows for a 180° rotation of the second structural part 12, and therefore of the watertight partitioning means 6, relative to its original position. Furthermore, due to this double 90° rotation of the connecting portion 13, the second structural part 12 and the partitioning means 6 are also positioned in a plane parallel to that of their original positions. This displacement of the second structural part 12 thus allows the partitioning means 6 to be positioned opposite the opening 31 of the rotation chamber 3 carried by the first structural part 11.Also, when in its original position, the partitioning means 6 is in a plane shared with the opening 31 of the rotation chamber 3, this double 90° folding allows the partitioning means 6 to be positioned opposite the opening 31 of the rotation chamber 3 supported by the first structural part 11 for the watertight partitioning of this opening 31 of the rotation chamber 3.

[0035] According to an example relating to another variant of the construction of the part 1. Implementation of a distribution head 10 according to the invention and capable of being combined with some of the variants detailed previously, the connecting portion 13 comprising two flexural zones 131, 132 arranged parallel to each other, at least one relief 14 having a thickness whose dimension is substantially identical to the spacing between the two flexural zones 131, 132 of the connecting portion 13. According to this particular construction variant of the relief 14, when, on the one hand, the relief 14 is positioned at the edge of a first flexural zone 131 which is located on the side of the flexural zone 131 opposite to the second flexural zone 132 and, on the other hand, the deformation of the first flexural zone 131 leads to the When the connecting portion 13, located between the two bending zones 131 and 132, is brought into contact with the abutment surface 141 supported by the relief 14, the edge of the second bending zone 132 is positioned level with the end of the abutment surface 141 of the relief 14, that is, level with an edge of the relief 14 positioned at a distance from its base. Since the deformation of the first bending zone 131 is restrained by the abutment surface 141 of the relief 14, and the edge of the second bending zone 132 is positioned level with the end of the abutment surface 141 of the relief 14, the deformation forces and stresses exerted on the connecting portion 13 lead to deformation of the part with the lowest resistance to these forces and stresses. In this case, the part of the connecting portion 13 whose resistance to these deformation forces and stresses is the weakest corresponds to the second bending zone 132.Positioning the edge of the second bending zone 132 level with the end of the abutment surface 141 of the relief 14 allows the relief 14 to form a blocking surface for the deformation of the part of the connecting portion 13 bearing against the relief 14 so that the deformation forces and stresses exerted on the rest of the connecting portion 13 primarily cause deformation on a part of the connecting portion 13 at the level of which the resistance to these forces and stresses is less important such as the second bending zone 132.Also, within the framework of this variant of the construction of part 1 of the invention, the same relief 14 is able to participate, initially, in redirecting part of the forces and deformation stresses supported by the connecting portion 13 towards a first bending zone 131 and then, subsequently, in redirecting part of the forces and deformation stresses supported by the connecting portion 13 towards a second bending zone 132. The first bending zone 131 which supports a deformation of its structure is then the bending zone 131 whose position is closest to the relief 14.

[0036] According to an example relating to another construction variant of part 1 for embedding a distribution head 10 according to the invention and capable of being combined with some of the variants detailed above, the at least one relief 14 comprises a second abutment surface 142 arranged such that, after bending a first bending zone 131 of the connecting portion 13, positioning the part of the connecting portion 13 located between the two bending zones 131, 132 against the first abutment surface 141 of the at least one relief 14, a first edge of the second bending zone 132 is positioned against an edge of the second abutment surface 142, this positioning allowing at least a part of the connecting portion 13 located at the second edge of the second bending zone 132 to come into contact with the second abutment surface 142 of the at least one relief 14, during bending of the second flexural zone 132.Within the framework of this construction variant of . In part 1 of the invention, the relief 14 initially redirects some of the deformation forces and stresses borne by the connecting portion 13 towards the first bending zone 131, which corresponds to the bending zone 131 closest to the relief 14. Subsequently, the relief 14 redirects some of the deformation forces and stresses borne by the connecting portion 13 towards the second bending zone 132, which corresponds to the part of the connecting portion 13 where the resistance to these forces and stresses is lowest. The deformation of the second bending zone 132 results in a folding of the connecting portion 13 around an axis substantially corresponding to the axis of the bending zone 132 and positioned against an edge of the relief 14, which corresponds to an edge of the second abutment surface 142.The amplitude of the deformation of the bending zone 132 is then limited by the relief 14 and, in particular, by the contact of the part of the connecting portion 13 displaced against the relief 14 at the level of its second abutment surface 142. In the context of this variant of the construction of part 1 of the invention, at least two parts of the connecting portion 13 are arranged to be respectively in support against two different surfaces 141, 142 of the relief 14, the connecting portion 13 then being arranged to partially surround the relief 14 bearing the two abutment surfaces 141, 142.

[0037] According to an example relating to another variant of the construction of the part 1. In the embodiment of a distribution head 10 according to the invention and capable of being combined with the variant detailed previously, the first stop surface 141 and the second stop surface 142 of at least one relief 14 are arranged in respective planes arranged substantially perpendicular to each other. Such a construction of the two stop surfaces 141, 142, coupled with a thickness of the relief 14 whose dimension is substantially identical to the spacing between the two bending zones 131, 132 of the connecting portion 13, makes it possible to block the deformation of each of the two bending zones 131, 132 of the connecting portion 13 as soon as their respective bending amplitudes reach 90°.Since the two bending zones 131 and 132 of the connecting portion 13 are arranged parallel to each other, the double deformation by 90° folding of the connecting portion 13 at each of these bending zones 131 and 132 allows for a 180° rotation of the second structural part 12, and therefore of the watertight partitioning means 6, relative to its original position, while also modifying the positioning plane of this second structural part 12. Indeed, thanks to the double deformation by 90° folding of the connecting portion 13, the second structural part 12 and the partitioning means 6 are rotated 180° relative to their original positions and positioned in a plane parallel to that of their original positions. Also, when in its original position, the partitioning means 6... found in a shared plane with the opening 31 of the rotating chamber 3, this double displacement allows the partitioning means 6 to be positioned opposite the opening 31 of the rotating chamber 3 carried by the first structural part 11 for the watertight partitioning of this opening 31 of the rotating chamber 3.

[0038] According to an example relating to another variant of the construction of the part 1. For the implementation of a distribution head 10 according to the invention and capable of being combined with one or the other of the variants detailed previously, the opening 31 of the rotation chamber 3 has dimensions substantially identical to a section of the rotation chamber 3 arranged in a plane parallel to the plane of the opening 31 and comprising the mouth of the inlet channel 4 in the rotation chamber 3

[0039] According to an example relating to another variant of the construction of the part Part 1, comprising a dispensing head 10 according to the invention and capable of being combined with one or the other of the variants detailed above, also includes a connection interface 7 for a composition container, one end of this connection interface 7 comprising an orifice 71 for supplying the composition inlet channel 4 into the rotation chamber 3. Preferably, this connection interface is configured to be positioned below the rotation chamber 3 of the first structural part 11.

[0040] According to an example relating to another variant of the construction of the part 1. In the embodiment of a dispensing head 10 according to the invention, which can be combined with the previously detailed variant, the connection interface 7 of part 1 on a container forms a base in the form of an upper wall 72 extended downwards by a peripheral skirt 73. In one example, the peripheral skirt 73 includes one or more keying reliefs 731 intended to cooperate with complementary elements carried by the composition container and / or a casing 8 mounted over the dispensing head 10 obtained by part 1 of the invention. As an example, these keying reliefs 731 are formed by a pair of notches arranged oppositely on either side of the dispensing head 10.

[0041] According to an example relating to another variant of the construction of the part 1 for the realization of a distribution head 10 according to the invention and capable of being combined with one or the other of the variants previously detailed, the connection interface 7 includes a connection tip to a valve or pump stem, this valve or pump stem being configured to be positioned inside the composition container.

[0042] The invention also relates to a method for producing a distribution head 10 from a part 1 according to the invention, characterized in that the method comprises: - a bending step of the connecting portion 13 between the first structural part 11 and the second structural part 12, - a positioning step of the watertight partitioning means 6 opposite the opening 31 of the rotation chamber 3, - a locking step of the watertight partitioning means 6 with the opening 31 of the rotating chamber 3. According to one embodiment, the locking of the watertight partitioning means 6 with the opening 31 of chamber 3 is achieved by forcibly inserting the partitioning means 6 into the opening 31 of the rotating chamber 3. This forcible insertion can be easily performed, either manually or mechanically within an industrial automation system. Furthermore, this locking mechanism, achieved by forcibly inserting the partitioning means 6 into the opening 31 of chamber 3, is capable of withstanding pressures inside the rotating chamber 3 that can reach approximately 7 to 9 bar.

[0043] According to an example relating to a variant of the implementation of the method of making a distribution head 10 from a part 1 according to the invention and capable of being combined with the variant previously detailed, the method includes beforehand at least one step of production of the part 1 by at least one operation of injecting material into a mold.

[0044] The invention further relates to a head 10 for a composition container characterized in that this dispensing head 10 is made from a part 1 according to the invention and a method according to the invention

[0045] Of course, the invention is not limited to the embodiments described and shown in the accompanying drawings. Modifications remain possible, particularly with regard to the composition of the various elements or by substitution of technical equivalents, without departing from the scope of protection of the invention.

Claims

Demands

1. Part (1) for embedding a dispensing head (10) intended to be mounted on a composition container, the dispensing head (10) comprising: - a chamber (3) for rotating the composition of the container, - an inlet channel (4) of the composition into the rotating chamber (3), and - an outlet orifice (5) of the composition to the outside, this outlet (5) being positioned at one end of the rotating chamber (3), characterized in that the part (1) is a single-piece structure comprising: - a first structural part (11) comprising the inlet channel (4), the rotating chamber (3) and the outlet orifice (5) of the composition, the rotating chamber (3) comprising an opening (31) disposed opposite the outlet orifice (5) to the outside, this opening (31) having a cross-section greater than or equal to the largest cross-section of the rotating chamber (3),- a second structural part (12) comprising a watertight partitioning means (6) for the opening (31) of the rotation chamber (3), - a connecting portion (13) between the first structural part (11) and the second structural part (12) allowing displacement of the second structural part (12) relative to the first structural part (11) so as to allow positioning of the watertight partitioning means (6) opposite and / or through the opening (31) of the rotation chamber (3).

2. Part (1) for the embodiment of a distribution head (10) according to claim 1, characterized in that the rotation chamber (3) has a continuous surface without any trace of junction.

3. Part (1) for an embodiment of a distribution head (10) according to one of the preceding claims, characterized in that the rotating chamber (3) comprises at least one cylindrical portion (301) of circular cross-section whose axis is perpendicular to the plane of the opening (31) of the rotating chamber (3), the inlet channel (4) being arranged along an axis substantially tangential to the inner surface of the cylindrical portion (301) of circular cross-section of the rotating chamber (3).

4. Part (1) for the embodiment of a distribution head (10) according to one of the preceding claims, characterized in that the opening (31) of the rotation chamber (3) has a dimension substantially identical to a section of the rotation chamber (3) arranged in a plane parallel to the plane of the opening (31) and comprising the mouth of the inlet channel (4) in the rotation chamber (3).

5. Part (1) for an embodiment of a distribution head (10) according to one of the preceding claims, characterized in that the rotation chamber (3) comprises at least one axis of symmetry passing through the outlet orifice (5) outwards and perpendicular to the plane of the opening (31) of the rotation chamber (3).

6. Part (1) for the embodiment of a distribution head (10) according to one of the preceding claims, characterized in that the opening (31) of the chamber (3) for rotating the first structural part (11) and the watertight partitioning means (6) of the second structural part (12) are arranged at the level of the same face of the part (1).

7. Part (1) for the embodiment of a distribution head (10) according to one of the preceding claims, characterized in that the male arrangement of the watertight partitioning means (6) has a cross-section with dimensions identical to or greater than the dimensions of the opening (31) of the rotating chamber (3).

8. Part (1) for an embodiment of a distribution head (10) according to one of claims 6 or 7, characterized in that the male arrangement of the sealing partitioning means (6) includes an annular bead (61) on its periphery, this bead (61) being intended to be in contact with at least a part of the inner edge of the opening (31) of the rotating chamber (3).

9. Part (1) for the embodiment of a distribution head (10) according to one of the preceding claims, characterized in that the peripheral edge of the opening (31) of the rotating chamber (3) includes a chamfer (310).

10. Part (1) for the embodiment of a distribution head (10) according to one of the preceding claims, characterized in that the connecting portion (13) is made in the form of a strip of material or mixture of materials which allows its deformation in bending.

11. Part (1) for the embodiment of a distribution head (10) according to one of the preceding claims, characterized in that the connecting portion (13) is made in the form of a strip of material between the first structural part (11) and the second structural part (12), this strip of material comprising at least one flexural zone (131, 132).

12. Part (1) for the embodiment of a distribution head (10) according to claim 11, characterized in that the connecting portion (13) is made in the form of a strip of material comprising at least two flexural zones (131, 132) parallel to each other.

13. Part (1) for the embodiment of a distribution head (10) according to one of claims 11 or 12, characterized in that at least one flex zone (131, 132) is made in the form of a reduction of material in the thickness of the strip forming the connecting portion (13).

14. Part (1) for the embodiment of a distribution head (10) according to any one of claims 11 to 13, characterized in that the part (1) comprises at least one relief (14) disposed on the same face of the part (1) as the sealing partitioning means (6) such that, on the one hand, this at least one relief (14) is positioned near a first edge of at least one flexural zone (131) of the connecting portion (13) and carries at least one abutment surface (141) and, on the other hand, a part (133) of the connecting portion (13) positioned at the level of the second edge of the flexural zone (131) is arranged to be in contact with the abutment surface (141) of the at least one relief (14) during the deformation of the flexural zone (131) of the connecting portion (13).

15. Part (1) for the embodiment of a distribution head (10) according to claim 14, characterized in that at least one relief (14) is disposed over the entire length of the first edge of at least one flex zone (131).

16. Part (1) for the embodiment of a distribution head (10) according to one of claims 14 or 15, characterized in that at least one stop surface (141) of at least one relief (14) is arranged in a plane substantially perpendicular to the plane of the connecting portion (13).

17. Part (1) for the embodiment of a distribution head (10) according to any one of claims 12 to 14, characterized in that, the connecting portion (13) comprising two flexural zones (131, 132) arranged parallel to each other, at least one relief (14) has a thickness whose dimension is substantially identical to the spacing between the two flexural zones (131, 132) of the connecting portion (13).

18. A component (1) for embedding a distribution head (10) according to any one of claims 12 to 15, characterized in that at least one relief (14) comprises a second abutment surface (142) arranged such that, after bending a first bending zone (131) of the connecting portion (13) positioning the part of the connecting portion (13) located between the two bending zones (131, 132) against the first abutment surface (141) of at least one relief (14), a first edge of the second bending zone (132) is positioned against an edge of the second abutment surface 142, this positioning allowing at least a part of the connecting portion (13) located at the second edge of the second bending zone (132) to come into contact with the second abutment surface (142) of at least one relief (14) during bending of the second flexural zone (132).

19. Part (1) for the embodiment of a distribution head (10) according to claim 18, characterized in that the first stop surface (141) and the second stop surface (142) of at least one relief (14) are arranged in respective planes arranged substantially perpendicular to each other.

20. Part (1) for an embodiment of a dispensing head (10) according to one of the preceding claims, characterized in that the part (1) also includes a connection interface (7) to a composition container, one end of this connection interface (7) including a feed orifice (71) for the composition inlet channel (4) into the rotation chamber (3).

21. A method for producing a distribution head (10) from a part (1) according to any one of claims 1 to 19, characterized in that the method comprises: - a bending step of the connecting portion (13) between the first structural part (11) and the second structural part (12), - a positioning step of the watertight partitioning means (6) opposite the opening (31) of the rotation chamber (3), - a locking step of the watertight partitioning means (6) with the opening (31) of the rotation chamber (3).

22. Method of producing a distribution head (10) according to claim 18, characterized in that the method includes prior to at least one production step of the part (1) by at least one operation of injecting material into a mold.

23. Dispensing head (10) for container of composition characterized in that the dispensing head (10) is made from a part according to any one of claims 1 to 20 and from a method according to any one of claims 21 to 22.

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