FR3014696A1 - DEVICE FOR DIFFUSION OF A PRODUCT ENCAPSULATED IN AIR - Google Patents

Abstract

Diffusion device (1) for receiving a capsule (2) containing a product to diffuse into the air, the device comprising: - a base (5); - A perforation mechanism (19) - a support (39) having a plate (40) forming the bottom of a housing (61) for a capsule, the support being movable in translation in the base between a high position in which the plate retracts the perforating mechanism and a low position in which the perforating mechanism protrudes out of the tray on the bottom of the housing, - a cover (4), the closing movement of the lid being able to press a capsule housed in the housing against the support plate so as to exert a bearing force on the support plate, the support force causing a translation of the plate between the high position and the low position.

Description

The invention relates to the field of diffusion of a product encapsulated in a gas, and more particularly to the field of diffusion of an encapsulated product in the air. Different situations require the diffusion of a product in a gas such as in air. Thus, in the presence of unpleasant odors, the diffusion of a product in the ambient air makes it possible to mask the unpleasant odor or to make it disappear. Similarly, in anticipation of the occupation of a space by individuals, a room scent can be broadcast in the air to make the space to be occupied by these people pleasant. Also, in agricultural operations, it may be useful and necessary to diffuse into the ambient air antibiotics or other active substances for inhalation by animals or humans. Products to be diffused into the ambient air can take many aspects, for example in the form of essential oils, burning incense, simple receptacles for olfactory products naturally diffusing fragrances in the ambient air or other. In another example, in the context of farms, the products to be distributed may be drugs, plant extracts, antibiotics or other active substances. The invention provides a diffusion device for receiving a capsule containing a product to be diffused into the air, the device comprising: a base comprising: a cavity intended to receive a mixture of air and the product contained in the capsule ; an opening connecting the cavity of the base with the outside of the device; a perforation mechanism attached to the base and for degrading a capsule wall housed in the device; a carrier having a tray forming the bottom of a capsule housing and disposed between the capsule housing and the base cavity, the carrier being movably mounted in translation in the base in a direction perpendicular to the tray between a high position in a which the tray retracts the perforation mechanism and a low position in which the perforating mechanism protrudes out of the tray on the bottom of the housing, the tray having a through passage having, in projection in a plane parallel to the tray, dimensions greater than dimensions of the perforation mechanism, said through passage being located in line with the perforation mechanism; a lid adapted to be brought in a closing movement relative to the base from an open position in which the housing has an opening of greater size than the capsule and intended to insert the capsule into the housing to a closed position in which the lid is fixed on the base with an upper part of the cover projecting beyond the plate in the direction perpendicular to the plate, and in which the upper part of the lid projects radially towards the center of the plate; The lid and / or the base having a side wall disposed around the tray and defining a peripheral wall of the capsule housing extending between the tray and the top of the lid at least in the closed position of the device; The closing movement of the lid being able to press a capsule housed in the housing against the support plate so as to exert a bearing force on the support plate, the support force causing a translation of the plate between the high position. and the low position. A device as above makes it possible to store and use products to be distributed simply and economically. Indeed, after positioning the product in the device, the use of capsule limits the amount of product that will be released at a single encapsulated dose. The use of single-use doses makes it possible to change the product, and therefore the fragrance, after each use of the device.

Furthermore, the device according to the invention is secure since the perforation mechanism for perforating the wall of a product capsule to be diffused is retracted when the device is not closed or closed but does not include of capsule.

The degradation of the capsule taking place in the lower position of the tray, that is to say when the device is closed, there is no risk of unwanted reversal of the product since the only time or the product may be in contact with the air is when the capsule is pierced and therefore in the device in the closed position.

According to embodiments, such a device for diffusing a product in the air may comprise one or more of the following characteristics. According to one embodiment, the cavity of the base comprises a diffusion chamber, the through passage of the plate opening on the one hand on the bottom of the housing formed by the plate and, on the other hand, in the diffusion chamber of the base. The presence of a diffusion chamber allows a better diffusion of the product, the product in the capsule being slowly diffused into the air passing through the diffusion chamber before being discharged. According to one embodiment, the diffusion device further comprises an air supply duct and an air outlet duct opening into the diffusion chamber. An air supply duct and an air outlet duct make it possible to connect the diffusion chamber to an air flow circuit, thus facilitating the diffusion of the product to be diffused. According to one embodiment, the perforation mechanism comprises a lateral groove developing from a perforating end of the perforating mechanism to the base, the groove developing along an axis perpendicular to the plate. The presence of a groove allows the product to be diffused contained in the capsule to pass easily from the capsule into the diffusion chamber, the product being able to diffuse into the diffusion chamber via the lateral groove of the perforation mechanism. According to one embodiment, the base further comprises an air supply pipe having an air outlet opening on a piercing end of a first tip of the perforation mechanism opposite to the base and in which the cavity of the base comprises an air outlet pipe having an inlet located on the piercing end of a second tip of the perforating mechanism opposite the base. The air supply pipe opening on the end of the perforation mechanism ensures that the air flow contained in the air supply pipe will circulate in the capsule. Similarly, the air contained in the capsule and having mixed with the product to be diffused is extracted directly via the air outlet duct. This embodiment ensures a forced passage of the air flowing in the device in the capsule and therefore the diffusion of the encapsulated product.

According to one embodiment, the cover is removable relative to the base. According to one embodiment, the diffusion device further comprises a hooking element connecting the base to the cover. Such a fastening element is preferably flexible, in the form of a flexible strap. This hooking element makes it possible to connect the lid to the body of the device, thus avoiding losing the lid of the device. According to one embodiment, the base comprises a guiding device comprising a lateral groove formed in a side wall of the base intended to guide a flange of the capsule parallel to the plate during its insertion into the housing. According to one embodiment, the device comprises a locking system in the closed position, the locking system having a lateral orifice passing through a side wall of the cover; an orifice on a side wall of the base; A blocking rod for passing through the through-side orifice of the cover and having an end accommodated in the side port of the base for locking the cover in the closed position.

According to one embodiment, the cover is mounted in helical rotation on the base. According to one embodiment, the base comprises a lateral thread having a plurality of entry points and intended to cooperate with an internal thread of the lid. The lateral thread with three points of entry provides better handling of the device, the lid being closed for example with a simple rotation of the lid by an angle of the order of 180 °. According to one embodiment, the perforation mechanism comprises several points and the plate has a plurality of through passages of dimensions greater than the dimensions of said points and in which the points are engaged in the low position of the plate. An idea of the invention is to provide a device for diffusing a product into the air which is simple and practical to use. Another aspect of the invention is to provide a secure broadcast device. Another aspect of the invention is to provide a diffusion device allowing the use of pre-dosed product, thus limiting the loss of product and reducing the space required for the installation and use of the device. Another aspect of the invention is based on the idea of providing a device in which the user has only a limited number of manipulations to perform in order to bring the product contained in a capsule into contact with the ambient air. or with a flow of air passing through the device. The invention will be better understood, and other objects, details, features and advantages thereof will become more clearly apparent from the following description of several preferred embodiments of the invention, given solely for illustrative purposes and not limiting, with reference to the accompanying drawings. FIG. 1 is a schematic sectional perspective view of an open diffusion device body associated with a lid and a flanged capsule for insertion into the diffusion device; - Figure 2 is a schematic perspective view of a diffusion device as in Figure 1 in the closed position and comprising the capsule; FIG. 3 is a sectional view of a diffusion device of FIG. 2; - Figure 4 is a top view of a device of Figure 2 in the open position; FIG. 5 is a sectional view of an alternative embodiment of a device of FIG. 3; FIG. 6 is a schematic representation of an installation in which a device of one of FIGS. 1 to 5 is integrated. A list of the references used in the rest of the description is given below: 1. Broadcasting device 2 3. Body of the device 1 4. Cover of the device 1 5. Base of the body 3 6. Receptacle of the body 3 7. Air supply line 8. Evacuation duct 9. air of the air supply line 7 10. Air outlet of the air supply line 7 11. Upper face of the base 5 12. Air inlet of the air outlet pipe 8 13. Air outlet of the exhaust air duct 8 14. Outer wall of the base 5 15. Inner face of the wall 14 16. Inner circular wall of the base 5 17. Central base of the base 5 18. End piece upper end of inner wall 16 19. Tips 20. Upper edge of inner wall 16 21. Grooves 22. External side of inner wall 16 23. Extremity 24. Lower portion of the receptacle 6 25. Upper portion of the receptacle 6 26. Shoulder of the receptacle 6 27. External lateral face of the lower portion 24 28. Lower face of the shoulder 26 29. Upper edge of the wall Outer ring 14 of cap 5 30. Clamp ring 31. Bottom face of ring 30 32. Top face of ring 30 33. Clamp groove 34. External side face of upper part 25 of receptacle 6 35. Internal face of the receptacle 6 36. Lower end of the inner face 35 37. Indentation 38. Internal groove of the body 3 39. Capsule holder 40. Support plate 39 41. Circular cylindrical wall of the support 39 42. Central block of the support 39 43. Through-holes of the plate 40 44. Top face of the plate 40 45. Bottom face of the plate 40 46. Bottom end of the circular cylindrical wall 41 47. Shoulder of the circular cylindrical wall 41 48. External face of the cylindrical wall ci 41. Spring 50. Top edge of the upper part 25 of the receptacle 6 51. Guide device 52. Bead of the guide device 53. Edge of the bead 52 54. Bottom wall of the cover 4 55. Internal face of the wall 54 56. External face of the wall 54 57. Throat 58. Upper part of the lid 4 59. Lower face of the upper part 58 60. Lugs 61. Housing for capsule 2 62. Reservoir of capsule 2 63. Operacle of the capsule 2 64. The collar of the capsule 2 65. The hinge 66. The cover ring 67. The body ring 68. The flexible connection between the rings 66 and 67 69. The threaded through hole of the wall 54 70. The screw 71. The central hole of the the upper part 58 of the cover 4 72. The lower edge of the wall 54 73. The upper face of the shoulder 26 74. The inner face of the through orifices 75. The air entering the air inlet duct 7 76. The diffusion chamber 77. Air circulating in room 76 78. Product driven in the diffusion chamber 76 79. Air exhausted through the evacuation pipe 8 80. Upper face of the tip 81 81. First tip 82. Upper face of the second tip 83 83. Second tip 84. Injection line air flow 85. Air injection device 86. Air intake pipe 87. Air suction device In the remainder of the description, regardless of the orientation of the device relative to the Earth's gravity, the terms "upper" and "lower" respectively relate to an element located near or towards the device cover as opposed to an element located near or oriented towards the body of the device. Similarly, the terms "external" and "internal" respectively relate to an element located near or outwardly of the device and to an element located near or oriented towards the center of the device. FIG. 1 represents a schematic perspective view in section of an open diffusion device 1 associated with a flanged capsule 2 intended to be inserted in the diffusion device 1. The device 1 comprises a body 3 and a cover 4. The body 3 is composed of a base 5 on which a receptacle 6 is mounted. The base 5 comprises an air supply pipe 7 and an air discharge pipe 8. The air supply pipe 7 comprises an air inlet 9 and an air outlet 10. The air inlet 9 of the air supply duct 7 opens on the outside at the bottom of the base 5. This inlet of air 9 of the air supply line 7 can be connected to a source of air flow, such as for example a ventilated duct (not shown), or left free, that is to say without connection with an air supply device. The air outlet 10 of the air supply pipe 20 opens on an upper face 11 of the base 5. The upper face 11 of the base 5 is circular in shape. In a similar manner to the air supply line 7, the air discharge duct 8 comprises an air inlet 12 and an air outlet 13. The air inlet 12 of the duct air outlet 8 opens on the upper face 11 of the base 5. The air outlet 13 of the air discharge pipe 8 opens out of the base 5 at the bottom of the base 5. This output of The air 13 of the exhaust air duct 8 can be connected to an air circuit, possibly equipped with an air suction system, or left free. The base 5 comprises, at the periphery of the upper face 11, a circular outer wall 14 projecting from the upper face 11 of the base 5. This outer wall 14 develops perpendicular to the upper face 11 of the base 5. An inner face 15 of the circular outer wall 14 of the base 5 has a thread. The base 5 also has a circular inner wall 16 projecting from the upper face 11 of the base 5. This inner wall develops perpendicularly to the upper face 11 of the base 5. The circular outer wall 14 surrounds the circular inner wall 16. The base 5 comprises a central stud 17 projecting from the upper face 11 of the base 5. This central stud 17 is of circular cylindrical shape. The generator of the central stud 17 passes through the center of the upper face 11 of the base 5. The generatrix of the central stud 17 develops perpendicularly to said upper surface 11 of the base 5. The circular outer wall 14, the circular inner wall 16 and the central stud 17 are coaxial. An upper end 18 of the inner wall 16 opposite the upper face 11 of the base 5 has a plurality of points 19. These points 19 project from an upper edge 20 of the inner wall 16. The inner wall 16 has a plurality of grooves 21. Each groove 21 develops on an outer lateral face 22 of the inner wall 16. Each groove 21 develops from the upper face 11 of the base 5 to one end 23 of the tips 19 opposite the base 5.

The receptacle 6 is of generally circular hollow cylindrical shape. The receptacle 6 has a lower portion 24 and an upper portion 25 separated by a shoulder 26. The lower portion 24 of the receptacle 6 has an outer side face 27 provided with a thread. The threading of the outer lateral face 27 of the lower part 24 of the receptacle 6 is complementary to the threading of the inner face 15 of the outer wall 14 of the base 5. Typically, the receptacle 6 is fixedly mounted on the base 5 by cooperation the thread of the base 5 and the thread of the lower portion 24 of the receptacle 6. The lower portion 24 of the receptacle 6 has a length in a direction perpendicular to the upper surface 11 of the base 5 greater than the length of the outer wall 14 of the base 5 according to this same direction. The shoulder 26 projects radially outwardly of the receptacle 6 beyond the threading of the outer lateral face 27 of the lower portion 24 of the receptacle 6. Thus, a lower face 28 of the shoulder 26 is located in the extension of the outer wall 14, a gap separating said lower face 28 from the shoulder 26 of an upper edge 29 of the outer wall 14 of the base 5. A clamping ring 30 is mounted on the lower part 24 of the receptacle 6. This clamping ring 30 is screwed onto the thread of the outer lateral face 27 of the lower part 24 of the receptacle 6. A lower face 31 of the clamping ring 30 rests on the upper edge 29 of the outer wall 14 of the base 5. An upper face 32 of the clamping ring 30 is opposite the lower face 28 of the shoulder 26. The upper face 32 of the clamping ring 30, the outer lateral face 27 of the lower part 24 of the receptacle 6 and the face i nférieure 28 of the shoulder 26 of the receptacle 6 together form a clamping groove 33. When the device 1 is mounted on a partition such as a wall of housing wall or a furniture partition, a hole is drilled in the partition to receive the device 1. The constituent elements of the device 1 are mounted with each other so that the edges of the hole are of the partition are housed in the clamping groove 33, the device thus being held in position on the partition by clamping said edges of the hole between the clamping ring 30 and the lower face 28 of the shoulder 26.

The upper part 25 of the receptacle is circular cylindrical. An outer side face 34 of the upper portion 25 of the receptacle 6 has a thread. An inner face 35 of the receptacle 6 develops uniformly from the lower portion 24 of the receptacle 6 to the upper portion 25 of the receptacle 6. The inner face 35 of the receptacle 6 comprises, at a lower end 36, a peripheral recess 37 This peripheral recess 37 forms, together with the upper face 11 of the base 5, an internal groove 38 of the body 3. A support 39 of capsule 2 is mounted to move in translation in the receptacle 6. This support 39 comprises a circular plate 40 , a circular cylindrical wall 41 and a central block 42. The plate 40 is circular in shape and has a diameter slightly smaller than the diameter of the inner face 35 of the receptacle 6. The plate 40 develops in a plane parallel to the upper surface 11 5. The plate 40 is housed in the receptacle 6, the inner face 35 of the receptacle surrounding the plate 40. The plate 40 comprises a plurality of orifers. 43. These through orifices 43 are located at the ends of the spikes 19 of the inner wall 16 of the base 5. More particularly, in the open position of the device 1, the tips 19 of the inner wall 16 of the base 5 are housed in the orifices. 43 through the plate 40, the tips 19 being retracted by the plate 40, that is to say that the tips 19 do not project on an upper face 44 of the plate 40. The circular cylindrical wall 41 of the support 39 develops from the periphery of a lower face 45 of the plate 40 to the upper face 11 of the base 5. The circular cylindrical wall 41 of the support 39 has an outer diameter identical to the diameter of the plate 40, that is to say slightly lower to the diameter of the inner face 35 of the receptacle 6. By the complementarity, both diameters and lengths in a direction perpendicular to the upper face 11 of the base 5, the plate 40 and the cylindrical wall circular 41 of the support 39 with the inner face 35 of the receptacle 6, the receptacle 6 acts as a guide in translation of the support 39 in a direction perpendicular to the upper face 11 of the base 5. A lower end 46 of the circular cylindrical wall 41 of the support 39 has a shoulder 47. This shoulder 47 of the wall 41 projects radially from an outer face 48 of the circular cylindrical wall 41 of the support 39. The shoulder 47 is housed in the internal groove 38 of the body 3 formed by the recess 37 of the inner face 35 of the receptacle 6 and the upper face 11 of the base 5. Typically, the shoulder 47 serves to limit the translation of the support 39 between a high position of the support (visible in FIG. 1) in which 20 the shoulder 47 is in abutment against an upper face of the internal groove 38 and a low position (visible in Figure 3) in which the shoulder 47 abuts on the upper face 11 of the base 5 In the high position of the support 39, the tips 19 are retracted into the through openings 43 of the plate 40. Conversely, in the lower position of the support 39, the tips 19 pass through the through-holes 43 and 25 projecting from the upper face 44 of the plate. 40. The central block 42 of the support 39 protrudes from the lower face 45 of the plate 40 towards the base 5. The central stud 42 is circular cylindrical. The generator of the central block 42 is perpendicular to the plate 40 and passes through the center of said plate 40. Typically, the generatrix of the central block 42 of the support is the same generator 30 as that of the central block 17 of the base 5. The central block 42 of the support 39 is therefore opposite the central stud 17 of the base 5. In the low position of the support 39, the central stud 42 of the support 39 abuts against the central stud 17 of the base 5, thus contributing to the limitation of the translational movement of the support 39 in the receptacle 6.

A spring 49 jointly surrounds the central stud 42 of the support 39 and the central stud 17 of the base 5. This spring 49 is in compression between the lower face 45 of the plate 40 and the upper face 11 of the base 5. This spring 49 is surrounded by the inner wall 16 of the base 5. The spring 49 is held in position by the central pads 17, 42 and the inner wall 16 of the base 5. In the absence of opposite force, the spring 49 applies to the support 39, and more particularly on the lower face 45 of the plate 40, a holding force intended to hold the support 39 in the upper position, that is to say away from the base 5, the shoulder 47 abutting against the upper face of the throat internal portion 38 of the body and the tips 19 retracted by the plate 40. An upper edge 50 of the upper portion 25 of the receptacle 6, opposite the lower portion 24 of the receptacle 6, comprises a guide device 51 in insertion of the capsule 2 This guiding device 51 develops on a partial periphery of the upper edge 50 so as not to prevent the insertion of the capsule 2, for example over 180 °. The guiding device 51 comprises a bead 52. The bead 52 projects from the upper edge 50 of the upper part 25 of the receptacle 6 beyond the plate 40 of the support 39. The bead 52 has a flange 53 projecting radially towards the liner. In the absence of a capsule 2 in the device, the rim 53 of the bead 52 is opposite the upper face 44 of the plate 40. Thus, the bead 52 forms with the upper surface 44 of the plate 40 a guide groove. The cover 4 of the device comprises a circular cylindrical bottom wall 54. The bottom wall 54 of the cover has an internal diameter slightly greater than the diameter of the outer face 34 of the upper part 25 of the receptacle 6. An inner face 55 of the lower wall 54 of the cover 4 comprises a complementary thread of the thread of the outer face 34 of the upper part 25 of the receptacle 6. Typically, the cover 4 is mounted on the body 3 of the device 1 by cooperation between the thread of the bottom wall 54 of the cover 4 and the thread of the upper portion 25 of the receptacle 6. An outer face 56 of the bottom wall 54 of the cover 4 has a hooking groove 57. This hooking groove 57 is circular and develops over the entire periphery of the the bottom wall 54 of the lid 4.

An upper portion 58 of the cover 4 protrudes radially inwardly from the bottom wall 54 of the cover 4. A lower face 59 of the upper part 58 of the cover 4 has a plurality of lugs 60. These lugs 60 are radially distributed from in a regular manner on the lower face 59 of the upper part 58 of the cover 4. The lugs 60 project from the lower face 59 of the upper part 58 of the cover 4 towards the thread of the bottom wall 54 of the cover 4. The upper part 58 of the cover 4 forms, together with the plate 40, a housing 61 for capsule 2 containing product to diffuse into the air.

The upper face 44 of the plate 40 forms the bottom of the housing 61 intended to receive the capsule 2. The lower face 59 of the upper portion 58 of the cover 4 forms the ceiling of the housing 61. The capsule 2 has a reservoir 62 in the form of a half -sphere. The reservoir 62 comprises a product intended to be mixed with the ambient air, with a flow of air or the like. This product is stored in any form adapted to its diffusion in the air, for example in the form of an essential oil soaked in a sponge, a product impregnated in a porous ceramic, or other. The reservoir 62 is obstructed on its flat face by a cap 63. The cap 63 is made of leakproof and perforable material in order to maintain the product contained in the capsule 2 in the capsule 2 until the perforation of the cap 63. In order to ensure the tightness of the attachment between the cover 63 and the reservoir 62, the capsule 2 has a peripheral collar 64. The cap 63 is sealed to the flange 64 by any suitable means, for example by gluing, heat sealing, stamping or the like. The diameter of the flange 64 is slightly smaller than the diameter of the plate 40 so that when the capsule 2 is inserted into the housing 61, the cap 63, and possibly part of the flange 64 not covered by the cap 63, is completely in relation to the plate 40. In the open position of the device 1, the lid 4 is separated from the body 3 of the device 1, so that the plate 40 is accessible for a capsule 2. Thus, the capsule 2 can be positioned in the housing 61, the cap 63 of the capsule 2 being positioned against the upper face 44 of the plate 40. Advantageously, the flange 64 of the capsule 2 is inserted into the guide groove formed by the bead 52 and the upper face 44 of the plate 40, thus ensuring the proper positioning of the capsule 2 in the housing 61. Moreover, with the exception of the case in which the gravity coincides with the direction of insertion of the capsule 2, the capsule 2 is maintained in co position In this open position of the device 1, no force opposes the spring 49 which thus maintains the support 39 of the capsule 2 in the high position.

FIG. 2 represents a schematic perspective view of a diffusion device of FIG. 1 in the closed position and comprising the capsule. In use, the capsule 2 is housed in the housing 61 formed by the plate 40 and the upper part 58 of the lid 4. The lid 4 is mounted on the body 3 of the device 1.

A hinge 65 comprises a cover ring 66 and a body ring 67 connected by a flexible connection 68. This hinge 65 makes it possible to fasten the body 3 and the cover 4 together without preventing their collaboration for closing and opening the device 1 and without risk of losing the lid 4. The lid ring 66 is circular in shape and is housed in the hooking groove 57 of the lid 4. The lid ring 66 has an internal diameter greater than the diameter of the fastening groove 57 so that the cover 4 can rotate freely in the cover ring 66 without its rotation being impeded by the cover ring 66. The body ring 67 is circular in shape and is housed in the clamping groove 39 of the body 3. The body ring 67 has a thickness, in a direction perpendicular to the upper surface 11 of the base 5, less than the thickness of the clamping groove 33 in this same direction. This difference in thickness makes it possible to house simultaneously the body ring 67 and the edges of a hole in an external partition on which the device must be installed.

Advantageously, the hinge 65 is made of a flexible material such as rubber. In addition to offering flexibility of use to the device by allowing free manipulation of the cover 4 relative to the body 3, such a rubber serves as a damping buffer in the clamping groove 33 to prevent degradation of the edges of the partition hole in which is mounted the device 1.

The outer face 56 of the bottom wall 54 of the cover 4 has a through hole 69. This through hole 69 has an internal thread. The outer face 34 of the upper part 25 of the receptacle 6 comprises a threaded orifice (not shown). In the closed position of the device 1, the threaded through orifice 69 of the cover 4 is vis-à-vis the threaded orifice of the receptacle 6, so that a screw 70 can be inserted into the two orifices simultaneously. Such a screw 70 allows locking in position of the cover 4 on the body 3 of the device 1.

The upper portion 58 of the lid 4 has a central orifice 71. This central orifice 71 opens into the housing 61 for capsule 2, thus making it possible to see if a capsule 2 is present in the device 1. In addition, the capsule 2 in the housing 61 being visible through the orifice 61, external characteristics of the capsule 2 can also be visible. This advantageously allows not having to open the device 1 to know if a capsule 2 is present in the device 1 and also to know directly what type of capsule 2 is in the device 1, for example using a code color for the different capsule 2, indications written on the visible part of the capsule 2 when the device 1 is closed or any other suitable means.

FIG. 3 represents a sectional view of a diffusion device of FIG. 2. During the closing movement, the cover 4 is screwed onto the body 3 of the device 1. The threading of the bottom wall 54 of the cover 4 cooperates with the thread of the upper portion 25 of the receptacle 6 until a lower edge 72 of the lower portion 54 of the cover 4 abuts an upper face 73 of the shoulder 26 of the receptacle 6. When the slice 72 of the bottom wall 54 of the cover 4 is in abutment against the upper face 73 of the shoulder 26 of the receptacle, the shoulder 47 of the circular cylindrical wall 41 of the support is in abutment against the upper face 11 of the base 5 and the central block 42 of the support 39 is in abutment against the central stud 17 of the base 5. Moreover, when the wafer 72 of the bottom wall 54 of the cover 4 is in abutment against the upper face 73 of the shoulder 26 of the receptacle, the fi the let of the receptacle 6 is vis-à-vis the through hole 69 of the bottom wall 54 of the cover 4, so that the screw 70 can be screwed simultaneously in these two holes to lock in position the cover 4 relative to the 3. When the cover 4 is screwed onto the body 3, the lugs 60 of the lower face 59 of the upper part 58 of the lid 4 translate to the body 3. During this translational movement, the lugs 60 exert a thrust force on the reservoir 62 and / or on the flange 64 of the capsule 2. The capsule 2 being supported on the plate 40 of the support 39, the thrust force exerted by the translation of the lugs 60 on the capsule 2 is transmitted from the capsule 2 to the plate 40 of the support 39. This thrust force exerted on the plate 40 opposes the holding force exerted by the spring 49 and pushes the support 39 towards the base 5 of the body 3. The plateau 40 and the circular cylindrical wall area 41 of the support 39 then slide along the inner face 35 of the receptacle 6 towards the base 5 of the body 3. This sliding is limited firstly by the abutment of the shoulder 47 of the circular cylindrical wall 41 of the support 39 on the upper face 11 of the base 5 and, on the other hand, by the abutment of the central block 42 of the support 39 on the central block 17 of the base 5. When sliding the support 39 towards the base 5, the plate 40 becomes approaching the body 3 of the device 1. On approaching the plate 40 and the body 3, the tips 19 of the inner wall 16 of the base 5 pass through the orifices 15 of the plate 40. When the support 39 abuts against the base 5, the tips 19 of the inner wall 16 of the base 5 project on the upper face 44 of the plate 40. The operculum 63 of the capsule 2 being pressed against the upper face 44 of the plate 40, the protrusion of the tips 19 perforated operculum 63, thus releasing the product contained in the capsule 2. As the inner wall 16 of the base 5 has a plurality of tips 19, the cap 63 of the capsule 2 is pierced in a plurality of places. The through orifices 43 of the plate 40 have dimensions, in the plane of the plate 40, greater than the dimensions of the tips 19, in the same plane, so as to generate a space between the points 19 and an inner face 74 of the through orifices 43. This space allows a better evacuation of the product from the capsule 2. In use, the air enters the device 1 by the air inlet 9 of the air supply pipe 7 as represented by the arrow 75 in FIG. 3. This air opens at the upper surface 11 of the base 5. The air then circulates in a diffusion chamber 76 as represented by the arrows 77 in FIG. 3. The diffusion chamber 76 is delimited by the upper face 11 of the base 5, the inner wall 16 of the base 5, the circular cylindrical wall 41 of the support 39 and the lower face 45 of the plate 40 of the support 39. The product contained in the capsule 2 is diffused in this chamber diffuse ion passing through the through holes 43 of the plate 40 via the perforations of the cover 63, as shown by the arrow 78 in Figure 3. The air flowing in the diffusion chamber 76 is then loaded product and is removed from the diffusion chamber 76 via the inlet 12 of the discharge pipe 8, as represented by the arrow 79 in FIG.

FIG. 4 represents a view from above of a device of FIG. 1 in an open position further comprising the hinge 65 connecting the body 3 to the lid 4. The device 1 comprises six tips 19 associated with six through-holes 43 of the plate 40. These points each have the groove 22. These grooves 22 constitute a product discharge channel, the product released during the perforation of the cap 63 of the capsule 2 can be evacuated by the grooves 22. In the absence of capsule 2 in the device 1, the rim 53 of the bead 52 comprises a zone shown hatched in FIG. 4 which is opposite the upper surface 45 of the plate 40. In a variant represented in FIG. 5, the device does not include a diffusion chamber 76. The device 1 has only two hollow points 19. In this variant shown in FIG. 5, the air supply pipe 7 does not open on the upper face 11 of the base 5 but directly on an upper face 80 of a first point 81. In a similar manner to the driving of 7, the inlet 12 of the exhaust duct 8 is located on an upper face 82 of a second point 83.

In a variant not shown, the diffusion chamber is formed of two parts separated in a sealed manner. The air supply duct opens into a first part of the diffusion chamber and the air discharge duct opens into a second part of the diffusion chamber. Thus, the air entering from the air supply pipe in the first part of the diffusion chamber circulates in the capsule through the orifices passing through the plate between putting in communication the first part of the diffusion chamber then, the product-laden air contained in the capsule is evacuated from the housing through the through orifices communicating the housing and the second part of the diffusion chamber. In this embodiment, the flow of air is forced so that the air flow entering the device passes into the capsule. The embodiment shown in FIG. 5 forces a stream of air 85 entering the device 1 to pass through the capsule 2 containing the product. The air flow 85 passing through the capsule 2 is charged with product before being discharged through the air evacuation pipe 8. FIG. 6 schematically shows a system in which a device 1 is integrated as described herein. -above. In this system, the air supply line 75 is connected to an air flow injection duct 84. This air injection line 84 is for example a line supplied with air by air injection device 85 such as a fan or by an air pump. The air evacuation pipe 8 of the device 1 is connected to a pipe 86 connected to an air suction device 87, such as an air pump, such a suction device 10 facilitating discharging the air charged with product contained in the device 1. In an embodiment not shown, the inlet of the air supply pipe comprises a non-return valve, the air having penetrated into the device it can then be evacuated only through the exhaust air duct having been loaded with product contained in the capsule. In an embodiment not shown, the lugs of the lower face of the upper part of the lid cooperate only with an upper end opposite the tray of the capsule. Thus, in the absence of a capsule, the screwing of the cover does not cause the plate to move, the latter remaining in a high position retracting the tips. Indeed, in such an embodiment, the absence of a capsule in the housing does not reflect the thrust exerted by the lugs on the upper part of a capsule on the tray. The screwing of the cover on the body is that bring the lugs of the tray without them exerting thrust force, directly or indirectly, opposing the spring. In an embodiment not shown, the air supply duct and the exhaust air duct each comprise a valve for obstructing or releasing said ducts. Thus, when the two valves are closed, the air contained in the diffusion chamber is gradually loaded into product until saturation. When opening, the released air will be heavily loaded product. In an embodiment not shown, the grooves forming passages for the product contained in the capsule between the internal lateral faces of the tray passage orifices and the tips develop only on the tips, the inner wall of the base remaining perfectly circular cylindrical.

In an embodiment not shown, the threading of the outer lateral face of the upper part of the receptacle comprises several entry steps, the cover can thus be completely screwed onto the body by rotating on the order of 180 ° only . In this variant, the external lateral face 5 of the upper part of the receptacle advantageously comprises as many threaded orifices to receive the locking screw in the lid position as the thread entry pitch, each threaded orifice being positioned so as to provide be vis-à-vis the threaded orifice through the bottom wall of the lid when the lid is screwed by a given inlet pitch of the thread of the outer side face 10 of the upper part of the receptacle. Advantageously, the outer lateral face of the upper part of the receptacle comprises a thread with three entry steps and three threaded holes. Although the invention has been described in connection with several particular embodiments, it is obvious that it is in no way limited thereto and that it includes all the technical equivalents of the means described and their combinations if These are within the scope of the invention. The use of the verb "to include", "to understand" or "to include" and its conjugated forms does not exclude the presence of other elements or steps other than those set out in a claim. The use of the undefined article "un" or "un" for an element or step does not exclude, unless otherwise stated, the presence of a plurality of such elements or steps. In the claims, any reference sign in parentheses can not be interpreted as a limitation of the claim.

Claims (12)

REVENDICATIONS1. Diffusion device (1) for receiving a capsule (2) containing a product to diffuse into the air, the device comprising: - a base comprising (3): - a cavity (8, 76) intended to receive a mixture of air and the product contained in the capsule; an opening (7, 13) connecting the cavity of the base with the outside of the device; a perforation mechanism (19) fixed on the base and for degrading a wall (63) of capsule housed in the device; a carrier (39) having a tray (40) forming the bottom of a capsule housing (61) and disposed between the capsule housing and the base cavity, the carrier being movably translatable in the base in a direction perpendicular to the plate between a high position in which the tray retracts the perforating mechanism and a low position in which the perforating mechanism protrudes out of the tray on the bottom of the housing, the tray having a through passage (43) having a projection in a plane parallel to the plate, dimensions greater than the dimensions of the perforation mechanism, said through passage being located at the right of the perforating mechanism; a cover (4) adapted to be brought in a closing movement relative to the base from an open position in which the housing has an opening of greater size than the capsule and intended to insert the capsule into the housing to a closed position in wherein the lid is secured to the base with an upper portion (58) of the lid protruding beyond the tray in the perpendicular direction of the tray, and wherein the upper portion of the lid projects radially toward the center of the tray; The lid and / or base having a sidewall (6, 54) disposed around the tray and defining a peripheral wall of the capsule housing extending between the tray and the top of the lid at least in the closed position of the device; The closing movement of the lid being able to press a capsule housed in the housing against the support plate so as to exert a bearing force on the support plate, the support force causing a translation of the plate between the high position. and the low position. 2. Device according to claim 1, wherein the cavity of the base comprises a diffusion chamber (76), the through passage (43) of the tray opening on the one hand on the bottom of the housing formed by the plate and, d ' on the other hand, in the diffusion chamber of the base. 3. Device according to claim 2, further comprising an air supply duct (7) and an air outlet duct (8) both opening into the diffusion chamber. 4. Device according to one of claims 2 to 3, wherein the perforation mechanism comprises a lateral groove (22) developing from a perforating end (23) of the perforating mechanism to the base, the groove developing according to an axis perpendicular to the plateau. 5. Device according to claim 1, wherein the base further comprises an air supply line (7) having an air outlet (10) opening on a piercing end (20) of a first tip (81). ) of the perforation mechanism opposite to the base and wherein the base cavity has an air outlet duct (8) having an inlet (12) on the piercing end (82) of a second end (83). ) of the perforation mechanism opposite to the base. 6. Device according to one of claims 1 to 5, wherein the cover is removable relative to the base. 7. Device according to claim 6, further comprising a hooking element (65) connecting the base to the lid. 8. Device according to one of claims 1 to 7, wherein the base comprises a guide device (51) having a lateral groove formed in a side wall (14) of the base for guiding a collar (64) of the capsule parallel to the tray when inserted into the housing. 9. Device according to one of claims 1 to 8, comprising a locking system in the closed position, the locking system having a through lateral orifice (69) on a side wall (54) of the lid; an orifice on a side wall of the base; a locking pin (70) for traversing the through-side orifice of the cover and having an end accommodated in the side port of the base for locking the cover in the closed position. 10. Device according to one of claims 1 to 9, wherein the lid is rotatably rotatably mounted on the base. 11. Device according to claim 10, wherein the base comprises a lateral thread having a plurality of entry points and intended to cooperate with an internal thread of the cover. 12. Device according to one of claims 1 to 11, wherein the perforation mechanism comprises a plurality of points and the plate has a plurality of through passages of dimensions greater than the dimensions of said tips and in which the tips are engaged in the lower position of the tray.