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EP3558036B1 - Improved shisha or hookah - Google Patents

Improved shisha or hookah Download PDF

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Publication number
EP3558036B1
EP3558036B1 EP17832284.8A EP17832284A EP3558036B1 EP 3558036 B1 EP3558036 B1 EP 3558036B1 EP 17832284 A EP17832284 A EP 17832284A EP 3558036 B1 EP3558036 B1 EP 3558036B1
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EP
European Patent Office
Prior art keywords
bowl
hearth
receptacle
cover
base
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EP17832284.8A
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German (de)
French (fr)
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EP3558036A1 (en
Inventor
Thang Nguyen
Mohamed Belaïd Amine BENSALAH
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Individual
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Individual
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    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F1/00—Tobacco pipes
    • A24F1/30—Hookahs

Definitions

  • the present invention relates to a smoke generator for a hookah.
  • a hookah 10 also called chicha, shisha, nurgil, ghelyan, arguileh, hookah, hookah, chilam, gelyoun, hubby-bubbly, qalyan or water pipe, is a pipe for smoking a smoking mixture.
  • the mixture sometimes referred to as tabamel, may include tobacco, molasses, fruit essences, smoking gel, smoking stones or other components.
  • the hookah 10 comprises, at its head 15, a smoke generator 1 capable of producing smoke.
  • This device 1 is arranged above a vertical chimney 11 ensuring the transport of the smoke, to a vase 12 containing a liquid, typically water, which may include perfumes, dyes, fruits, ice cubes , etc. Passing through the liquid, the smoke is advantageously refreshed and filtered. Then the smoke takes at least one flexible pipe 13 to a mouthpiece 14 used by the smoker to inhale the smoke.
  • a liquid typically water, which may include perfumes, dyes, fruits, ice cubes , etc. Passing through the liquid, the smoke is advantageously refreshed and filtered. Then the smoke takes at least one flexible pipe 13 to a mouthpiece 14 used by the smoker to inhale the smoke.
  • the hookah has been used since its invention more than 450 years ago in India according to a first version and more than 700 years ago in Africa according to another version, traditionally in Africa, South Asia and the Middle East. Its use now extends to much wider horizons. It is estimated that there are over 100 million hookah smokers worldwide.
  • a smoke generator 1 produces smoke by combustion of the mixture M, previously placed in a receptacle provided for this purpose in the smoke generator 1.
  • Combustion is produced by a heating element H accommodated in the smoke generator 1 and placed at the above the mixture M.
  • the heating element H is traditionally a combustible element, such as coal.
  • the contact between the heating element H and the mixture M generally takes place through a thermal screen S.
  • the heating element H communicates its heat to the mixture M, on the one hand by contact and on the other hand by means of a first circulation of fluid C1 between the heating element H and the mixture M.
  • fluid is meant herein, mainly air, which can be loaded with smoke from the combustion of the heating element H or in smoke from the mixture M.
  • a sheet of aluminum foil is used as a screen S. This sheet of aluminum foil is pierced with holes P in order to allow the first circulation of fluid C1.
  • a rigid aluminum plate is used as a screen S and replaces aluminum foil. This aluminum plate is pierced with holes P in order to allow the circulation of fluid C1.
  • the smoke generators 1 of the prior art systematically have holes P through the screen S. These holes P, made as short as possible , are direct. However, they also allow coal ashes and/or pieces of coal to pass through the screen S and pollute the mixture M.
  • US 2016/143353 A1 (BAVAR REZA [US]) May 26, 2016 ( 2016-05-26 ) discloses a hookah smoke generating device (500) comprising a bowl (300) and a bowl (570).
  • the subject of the invention is a smoke-generating device for a hookah, comprising a bowl and a hearth, the bowl being shaped to take place at the top of a hookah chimney and comprising a receptacle suitable to accommodate a smoking mixture, the hearth being shaped to be arranged at the top of the bowl above the mixture, being able to accommodate a heating element and comprising a base, able to support the heating element and to communicate its heat to the mixture , and a cover closing the hearth, the device being shaped to allow a first circulation of fluid from the hearth to the receptacle, the first circulation comprising at least one baffle which makes it possible to avoid a straight direct path, of direct view, between the hearth 3 and receptacle 20.
  • the principle of the invention is illustrated in picture 3 .
  • the heating element H is arranged above the mixture M from which it is separated in a substantially leaktight manner by a screen S comprising no drilling.
  • the smoke generator 1 according to the invention allows the necessary first circulation of fluid C1, but is shaped in such a way as to force said first circulation of fluid C1 between the heating element H and the mixture M to present a baffle, so that the path of the fluid is necessarily indirect, not rectilinear and even more preferably along a path comprising at least one ascending section A.
  • the device 1 smoke generator for hookah 10 comprises a bowl 2 and a hearth 3.
  • the bowl 2 is shaped to take place at the top of a chimney 11 of a hookah 10 and comprises a receptacle 20 capable of receiving the mixture M.
  • the hearth 3 is shaped to be placed at the top of the bowl 2 above the mixture M.
  • the hearth 3 is able to accommodate a heating element H.
  • the hearth 3 comprises a base 4 and a cover 5.
  • the base 4 is able to support the heating element H.
  • the base 4 forms a screen S preventing too rapid combustion of the mixture M in direct contact with the heating element H.
  • the base 4 is a good thermal conductor in order to communicate its heat to the mixture M.
  • the lid 5 is assembled with the base 4 to close the hearth 3, around the heating element H.
  • the device 1 is shaped to prevent direct circulation between the hearth 3 which contains the heating element H and the receptacle 20 of the bowl 2 which contains the mixture M.
  • the device 1 is shaped to allow a first circulation of fluid C1 from hearth 3 to receptacle 20 by forcing this first circulation C1 to include at least one baffle.
  • the first circulation C1 of fluid between the hearth 3 and the receptacle 20 is indirect, not straight.
  • the first circulation C1 is shaped so as to impose on the fluid at least one ascending section A.
  • This advantageous characteristic makes it possible, by using gravity, to prevent ash or coal debris, naturally heavier than air, from to follow the first circulation C1 and to reach the mixture M.
  • the fluid enters the first circulation C1 from the top of the hearth 3, forcing the fluid to rise along the ascending section A.
  • the cover 5 comprises at least one first pipe 51 arranged in the thickness of the cover 5 able to allow the first circulation C1.
  • the first pipe 51 begins at a hole 55.
  • the cover 5 comprises an outer wall 52 and an inner wall 53 spaced apart in order to provide at least one passage between the two in the thickness of the cover. 5.
  • the hole 55 is made, advantageously in the ceiling of the lid 5, in the only internal wall 52.
  • the first pipe 51 continues between the two walls 52,53 until it descends towards the base 4.
  • At least one passage 45 passing through the base 4 opposite allows the pipe 51 to open into the receptacle 20, containing the mixture M.
  • the junction between the cover 5 and the base 4 is substantially sealed, at least at the level of said at least one passage 45.
  • the volume inside hearth 3 is not in communication with said at least one passage 45, so as not to reproduce the drawback of the prior art.
  • the pipe 51 comprises a sealed bypass of the base 4 from the outside, beyond its periphery.
  • the length of the first circulation C1 is greatly lengthened by the invention, relative to a substantially zero length according to the prior art.
  • the pipe 51 can advantageously be shaped to have a length of at least 1 cm, preferably at least 3 cm, or even more.
  • the lid 5 can be made of any material, provided that it withstands the thermal stresses caused by the heat, such as a plastic material, a glass, a ceramic or even a metallic material.
  • the cover 5 is made of a material that is a good thermal conductor. This material can be a light alloy, for example aluminum.
  • the long length of pipe 51 forms a heat exchanger which, in relation to the ambient air present around the outer wall 52 of the cover 5, produces a heat sink capable of cooling the fluid circulating therein.
  • the path length is an advantage here in that on the one hand it reinforces the cooling effect and on the other hand that it provides a regulating effect.
  • the fluid traversing the first circulation C1 comes out with a regulated temperature, substantially constant over time, despite the possible variations in the temperature of the heating element H.
  • This is particularly advantageous for a good controlled combustion of the mixture M and contributes to improving the smoker's experience.
  • this thermal regulation effect advantageously renders unnecessary any means for adjusting the intensity of the heating element H, for example a means for adjusting the combustion by means of an adjustable air inlet.
  • the device 1 is further shaped to allow a second circulation C2 allowing air to enter the hearth 3, substantially centrally from below. It is a question here of the combustion air which joins the heating element H in the hearth 3 in order to allow its combustion.
  • the combustion air was introduced directly into the hearth due to the absence of a cover or via at least one vent made in the cover, in the ceiling and/or in the side walls of the cover. This can cause difficulty in producing combustion of the heating element.
  • a response proposed by certain devices of the prior art is a device making it possible to adjust the incoming air flow, in order to increase it at the start of combustion, then to reduce it thereafter once combustion is well established. This degrades the smoker's experience in that he must, several times during a session, modify said setting.
  • the possibility of a low air inlet advantageously makes it possible to produce a second circulation C2 producing a natural draught, which maintains itself and which moreover self-regulates according to demand: increasing at starting, when device 1 is cold, and then decreasing as device 1 heats up.
  • the bowl 2 is arranged around and comprises a central chimney 21 crossing axially able to allow the smoke produced to reach the chimney 11 of the hookah 10. Also the bowl 2 comprises a lower part 22 shaped to allow assembly of the bowl 2 and the device 1 at the top of the chimney 11 of the hookah 10. This assembly can be achieved by any means, for example by interlocking. This assembly is advantageously smoke-tight.
  • the bowl 2 further comprises an upper part 23 comprising the receptacle 20. The upper part 23 is shaped to support the hearth 3.
  • the assembly between the bowl 2 and the hearth 3 can be made anywhere by means, for example by a nesting. This assembly is advantageously smoke-tight.
  • the bowl 2 further comprises at least one second pipe 24.
  • Such a second pipe 24 crosses substantially the entire bowl 2 axially and connects an inlet 241 to an outlet 242 by means of a conduit 243 substantially parallel to the central chimney 21.
  • An inlet 241 is provided in the lower part 22, preferably radially and peripherally, so as not to disturb either the path of the smoke in the chimney 21,11, or the assembly of the bowl 2 on the chimney 11. The shape and positioning radial of the inlet 241 guarantees that this inlet 241 is not blocked, including by a wider hookah at the interface of the chimney 11 with the bowl 2.
  • An outlet 242 is provided in the upper part 23, preferably in a substantially axial and central manner, insofar as the chimney 21 allows it, in such a way as to bring air into the hearth 3, directly under the heating element H.
  • An outlet 242 is arranged directly under the base 4 .
  • the base 4 comprises at least one substantially vertical crossing 41.
  • a crossing 41 passes through the base 4 facing an outlet 242 and connects vertically, in a substantially sealed manner, an outlet 242 with the interior of the hearth 3, thus extending a second pipe 24.
  • the base 4 advantageously comprises as many crossings 41 that the bowl 2 comprises second pipes 24, four in the illustrated embodiment. These pipes 24 and crossings 41 are able to be arranged facing each other so as to form a second extended pipe 24,41. This advantageously makes it possible, by natural draft, to supply air to a combustion of the heating element H in the hearth 3.
  • the base 4 comprises, on the hearth side, around the outlets of the crossings 41, a groove 46, facilitating the exit of the air, even when a piece of coal is placed in line with a crossing 41 .
  • the cover 5 further comprises at least two walls 52.53.
  • these two walls 52,53 in that they form a space in the thickness of the cover 5 allow the passage of at least a first pipe 51. They also form, as previously described, a heat exchanger making it possible to regulate the temperature of the air circulating there. Extending the presence of a void between the two walls 52,53, beyond the sole need for passage of at least one pipe 51, to the entire surface of the cover 5, has another advantage: the outer wall 52 is much less hot, thus being separated by a space from the wall 53, which is very hot because of its proximity to the heating element H. This makes it possible to guarantee that the outer wall 52 remains much cooler and limits the risk of burns for a user.
  • a third, or even a fourth wall makes it possible, on the one hand, to increase the length of the baffle and of the first pipe 51 and, on the other hand, to further cool the outermost wall.
  • the cover 5 further comprises a handle 54 made of heat-insulating material.
  • This heat insulating material can be any material, such as a plastic material, leather or wood, and can be silicone for example.
  • the handle 54 is preferably shaped annularly in a ring peripherally surrounding the lid 5. While the prior art provided for a removable handle, such as a reuse of a charcoal tongs, the invention incorporates a permanent handle 54, which further reduces the risk of burns.
  • the lid 5 and the base 4 advantageously comprise means 44,56 of complementary mutual locking.
  • at least one hook 56 arranged at the bottom of the cover 5, is capable of being engaged vertically in at least one slot 44 formed in the base 4.
  • a rotation simply allows said at least one hook 56 to come to lock in said at least one slot 44.
  • the same number of slots 44 and hooks 56 are present and facing each other.
  • the complete hearth 3, comprising the lid 5 and the base 4 secured together, can thus be handled by grasping it by the lid 5, advantageously by its handle 54.
  • the locking means 44, 56 have a degree of angular symmetry that is sub-multiple or equal to that of the circulations C1-C3.
  • all circulations C1-C3 have a degree of symmetry of 4, ie four elements angularly evenly distributed at 90°.
  • Another degree of symmetry, even or odd: 2, 3, 5,..., is possible and equivalent, as long as it remains identical or sub-multiple between the locking means on the one hand and the circulations on the other apart, in order to allow them to be intercalated.
  • a slot 44 is adjacent to a passage 45, so as to limit the number of machining operations by allowing common production. Slot 44 is the smaller cutout closer to the center, while passage 45 is the larger cutout outward.
  • the underside of the base 4 and the upper part 23 of the bowl 2 are shaped to fit together in a substantially sealed manner. If as shown, the two parts are circular, the upper part 23 of the bowl 2 can for example have a bore in which the cylindrical base 4 is housed.
  • the assembly should advantageously be made or dismantled by hand. A slightly snug fit provides a smoke seal.
  • the base 4 is advantageously made of metallic material.
  • the bowl 2 can be made of any material, for example glass, metal, ceramic or plastic. According to a preferred embodiment, the bowl 2 is made of food grade silicone. If the bowl 2 is made of an elastic material, such as an elastomer, its elasticity is advantageously used to ensure sealing.
  • the bowl 2 and the base 4 cooperate for various functions, such as the second circulation C2 ensuring the draw, already described, and others described further on, which advantageously benefit from an alignment.
  • a second pipe 24 arranged in the bowl 2 is advantageously aligned with a bushing 41 arranged in the base 4.
  • the base 4 and the bowl 2 respectively comprise complementary indexing means 42.27. These indexing means 42,27 ensure indexed positioning in rotation and an anti-rotation function. This is particularly visible in Figures 10-13 .
  • the base 4 comprises at least one indexing means 42, here a lug 42, able to engage a complementary indexing means 27, here a slot 27, arranged opposite in the bowl 2.
  • the indexing means 27,42 have a degree of symmetry that is sub-multiple or equal to that of the circulations C1-C3.
  • the bowl 2 further comprises a wall 28 separating the receptacle 20 from the chimney 21.
  • This wall 28 of substantially annular shape thus delimits a receptacle 20 of substantially toroidal shape.
  • This wall 28 advantageously makes it possible to contain the mixture M in the peripheral receptacle 20 .
  • the wall 28 is advantageously cut out with at least one opening 29.
  • the smoke generator 1 cohabit at least three fluid circulations C1-C3.
  • the first circulation of fluid C1 between the hearth 3 and the receptacle 20 via said at least one first pipe 51 and the second low air inlet circulation C2 for the draft via said at least one second pipe 24,41 have already been described. These circulations intersect in a sealed manner, without mixing the fluids they carry.
  • the device 1 comprises at least one third pipe 43.
  • Said third pipe 43 substantially horizontal, in order to pass through the wall 28, is placed in the said at least one opening 29, if the latter is present.
  • Such a third pipe 43 must be arranged at the interface between the base 4 and the bowl 2, for example within an exchanger part, further comprising said at least one substantially vertical crossing 41.
  • this exchanger is made in the base 4. Alternatively, it could be made in a separate room or even alternatively in the bowl 2.
  • Said at least one third pipe 43 substantially horizontal, intersects in a sealed manner, said at least one second pipe 24,41, substantially vertical.
  • said at least one third pipe 43 is angularly offset relative to said at least one second pipe 24,41. This is particularly visible in figure 12,13 , 7 , 14-16 .
  • a first number of bushings 41 is made, allowing the second pipe C2, here equal to 4.
  • these bushings 41 are angularly evenly distributed, ie here every 90°.
  • the same number of third pipes 43 is made.
  • these pipes 43 are also angularly evenly distributed, ie here every 90°, by shifting them, in order to insert them with the crossings 41, substantially at an angle of 45°.
  • This fluid mainly comprising hot air, allows the combustion of the mixture M and the smoke thus produced borrows the third circulation C3 to join the chimney 21.
  • the distance 47 between the first circulation C1 and the third circulation C3 is maximized.
  • the distance 47 between the exit of the first circulation C1, that is the exit of a first pipe 51 at the level of a passage 45, and the entry of the third circulation C3, that is the entry of a third pipe 43 is maximized.
  • 4 passages 45 are present, equally distributed angularly, ie every 90°.
  • 4 third pipes 43 are present, equally distributed angularly, ie every 90°. Also maximization is achieved by angularly shifting, here by 45°, the 4 passages 45 and the 4 third pipes 43.
  • the cover 5 further comprises at least one side vent 57, preferably in the lower part.
  • a side vent 57 constitutes an additional air inlet. It is important to note that such a side vent 57 passes completely through the lid 5 in a sealed manner vis-à-vis the space between the two walls 52,53 and vis-à-vis said at least one first pipe 51 This can be seen most particularly by comparing the figure 6 and 7 between which the device 1 has been rotated by 45° around the axis of the chimney 21 or else at the figure 9 .
  • a continuous fabric joins the two walls 52,53 in a sealed manner. This is more particularly visible in the side vent 57 of the figure 9 or in that of figure 16 .
  • the side vents 57, 4 in number are advantageously angularly evenly distributed, ie every 90°.
  • the first pipes 51, and the facing passages 45 which extend them into the base 4 are 4 in number and are advantageously angularly evenly distributed, i.e. all the 90°, advantageously offset substantially by an angle of 45°, in order to fit between the side vents 57.
  • the cover 5 further comprises at least one upper vent 58, preferably at the top of the cover 5.

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Description

La présente invention concerne un générateur de fumée pour narguilé.The present invention relates to a smoke generator for a hookah.

Comme illustré à la figure 1 et de manière connue, un narguilé 10, encore appelé chicha, shisha, nurgil, ghelyan, arguileh, houka, hookah, chilam, gelyoun, hubby-bubbly, qalyan ou pipe à eau, est une pipe permettant de fumer un mélange à fumer. Le mélange, parfois dénommé tabamel, peut comprendre du tabac, de la mélasse, des essences de fruit, du gel à fumer, des pierres à fumer ou d'autres composants. Le narguilé 10 comprend, à sa tête 15, un générateur de fumée 1 apte à produire une fumée. Ce dispositif 1 est disposé au-dessus d'une cheminée 11 verticale assurant le transport de la fumée, jusqu'à un vase 12 contenant un liquide, typiquement de l'eau, pouvant comprendre des parfums, des colorants, des fruits, des glaçons, etc. En traversant le liquide, la fumée est avantageusement rafraîchie et filtrée. Ensuite la fumée emprunte au moins un tuyau flexible 13 jusqu'à un embout 14 utilisé par le fumeur pour inhaler la fumée.As shown in figure 1 and in a known manner, a hookah 10, also called chicha, shisha, nurgil, ghelyan, arguileh, hookah, hookah, chilam, gelyoun, hubby-bubbly, qalyan or water pipe, is a pipe for smoking a smoking mixture. The mixture, sometimes referred to as tabamel, may include tobacco, molasses, fruit essences, smoking gel, smoking stones or other components. The hookah 10 comprises, at its head 15, a smoke generator 1 capable of producing smoke. This device 1 is arranged above a vertical chimney 11 ensuring the transport of the smoke, to a vase 12 containing a liquid, typically water, which may include perfumes, dyes, fruits, ice cubes , etc. Passing through the liquid, the smoke is advantageously refreshed and filtered. Then the smoke takes at least one flexible pipe 13 to a mouthpiece 14 used by the smoker to inhale the smoke.

Le narguilé est utilisé, depuis son invention il y a plus de 450 ans en Inde selon une première version et il y a plus de 700 ans en Afrique selon une autre version, traditionnellement en Afrique, en Asie du sud et au moyen orient. Son usage s'étend de nos jours à des horizons bien plus larges. On estime le nombre de fumeurs de narguilé à plus de 100 millions de par le monde.The hookah has been used since its invention more than 450 years ago in India according to a first version and more than 700 years ago in Africa according to another version, traditionally in Africa, South Asia and the Middle East. Its use now extends to much wider horizons. It is estimated that there are over 100 million hookah smokers worldwide.

Tel qu'illustré par le schéma de principe de la figure 2, un générateur de fumée 1 produit la fumée par combustion du mélange M, préalablement disposé dans un réceptacle ménagé à cet effet dans le générateur de fumée 1. La combustion est produite par un élément chauffant H accueilli dans le générateur de fumée 1 et disposé au dessus du mélange M. L'élément chauffant H est traditionnellement un élément combustible, tel du charbon. Afin d'éviter une combustion trop rapide, le contact entre l'élément chauffant H et le mélange M s'effectue généralement au travers d'un écran thermique S. L'élément chauffant H communique sa chaleur au mélange M, d'une part par contact et d'autre part au moyen d'une première circulation de fluide C1 entre l'élément chauffant H et le mélange M. On entend par fluide dans la présente, principalement de l'air, pouvant être chargé en fumée issue de la combustion de l'élement chauffant H ou en fumée issue du mélange M.As illustrated by the block diagram of the figure 2 , a smoke generator 1 produces smoke by combustion of the mixture M, previously placed in a receptacle provided for this purpose in the smoke generator 1. Combustion is produced by a heating element H accommodated in the smoke generator 1 and placed at the above the mixture M. The heating element H is traditionally a combustible element, such as coal. In order to avoid too rapid combustion, the contact between the heating element H and the mixture M generally takes place through a thermal screen S. The heating element H communicates its heat to the mixture M, on the one hand by contact and on the other hand by means of a first circulation of fluid C1 between the heating element H and the mixture M. By fluid is meant herein, mainly air, which can be loaded with smoke from the combustion of the heating element H or in smoke from the mixture M.

De manière traditionnelle, une feuille de papier aluminium est utilisée comme écran S. Cette feuille de papier aluminium est percée de trous P afin de permettre la première circulation de fluide C1.Traditionally, a sheet of aluminum foil is used as a screen S. This sheet of aluminum foil is pierced with holes P in order to allow the first circulation of fluid C1.

Selon WO 2013/184847 , une plaque d'aluminium rigide est utilisée comme écran S et remplace le papier aluminium. Cette plaque d'aluminium est percée de trous P afin de permettre la circulation de fluide C1.According WO 2013/184847 , a rigid aluminum plate is used as a screen S and replaces aluminum foil. This aluminum plate is pierced with holes P in order to allow the circulation of fluid C1.

Afin de permettre la circulation de fluide C1 entre l'élément chauffant H et le mélange M, les générateurs de fumée 1 de l'art antérieur présentent systématiquement des perçages P au travers de l'écran S. Ces perçages P, réalisés au plus court, sont directs. Cependant ils permettent aussi à des cendres de charbon et/ou à des morceaux de charbon de traverser l'écran S et de venir polluer le mélange M. La disposition de l'élément chauffant H, nécessairement au dessus du mélange M, entraîne que lesdits perçages P sont verticaux descendants. Aussi la migration des cendres de charbon et/ou à des morceaux de charbon est facilitée par la gravité. La présence de cendres ou de charbon dans le mélange M entraîne un goût désagréable qui dégrade l'expérience du fumeur.In order to allow the circulation of fluid C1 between the heating element H and the mixture M, the smoke generators 1 of the prior art systematically have holes P through the screen S. These holes P, made as short as possible , are direct. However, they also allow coal ashes and/or pieces of coal to pass through the screen S and pollute the mixture M. The arrangement of the heating element H, necessarily above the mixture M, causes said P holes are downward vertical. Also the migration of coal ashes and/or lumps of coal is facilitated by gravity. The presence of ash or charcoal in the M blend results in an unpleasant taste that degrades the smoker's experience.

US 2016/143353 A1 (BAVAR REZA [US]) 26 mai 2016 ( 2016-05-26 ) divulgue un dispositif (500) générateur de fumée pour narguilé, comprenant un bol (300) et un foyer (570). US 2016/143353 A1 (BAVAR REZA [US]) May 26, 2016 ( 2016-05-26 ) discloses a hookah smoke generating device (500) comprising a bowl (300) and a bowl (570).

Il existe donc un besoin de fournir un générateur de fumée pour narguilé qui empêche ou au moins limite la migration de cendre ou de charbon, afin d'empêcher la pollution du mélange. La présente invention remédie à cet inconvénient et apporte de plus de nombreux avantages permettant d'améliorer l'expérience du fumeur.There is therefore a need to provide a hookah smoke generator which prevents or at least limits the migration of ash or charcoal, in order to prevent pollution of the mixture. The present invention overcomes this drawback and also provides many advantages that improve the smoker's experience.

A cet effet, selon un premier aspect, l'invention a pour objet un dispositif générateur de fumée pour narguilé, comprenant un bol et un foyer, le bol étant conformé pour prendre place au sommet d'une cheminée de narguilé et comportant un réceptacle apte à accueillir un mélange à fumer, le foyer étant conformé pour être disposé au sommet du bol au-dessus du mélange, étant apte à accueillir un élément chauffant et comprenant une base, apte à supporter l'élément chauffant et à communiquer sa chaleur au mélange, et un couvercle refermant le foyer, le dispositif étant conformé pour permettre une première circulation de fluide du foyer vers le réceptacle, la première circulation comportant au moins une chicane qui permet d'éviter un trajet direct rectiligne, de vue directe, entre le foyer 3 et le réceptacle 20.To this end, according to a first aspect, the subject of the invention is a smoke-generating device for a hookah, comprising a bowl and a hearth, the bowl being shaped to take place at the top of a hookah chimney and comprising a receptacle suitable to accommodate a smoking mixture, the hearth being shaped to be arranged at the top of the bowl above the mixture, being able to accommodate a heating element and comprising a base, able to support the heating element and to communicate its heat to the mixture , and a cover closing the hearth, the device being shaped to allow a first circulation of fluid from the hearth to the receptacle, the first circulation comprising at least one baffle which makes it possible to avoid a straight direct path, of direct view, between the hearth 3 and receptacle 20.

Ceci permet avantageusement que les cendres ou débris de combustible ne quittent pas le foyer pour venir polluer le mélange à fumer.This advantageously allows the ashes or fuel debris not to leave the hearth to pollute the smoking mixture.

Selon d'autres caractéristiques de l'invention, le générateur de fumée de l'invention comporte une ou plusieurs des caractéristiques optionnelles suivantes considérées seules ou selon toutes les combinaisons possibles :

  • la première circulation est conformée de manière à comprendre au moins une section ascendante,
  • le couvercle comprend au moins une première canalisation ménagée dans son épaisseur apte à permettre la première circulation,
  • le couvercle est réalisé en un matériau bon conducteur thermique, préférentiellement un alliage léger, tel de l'aluminium, et la première canalisation présente une longueur d'au moins 1 cm, préférentiellement d'au moins 3 cm,
  • le dispositif est encore conformé pour permettre une entrée d'air sensiblement centrale dans le foyer depuis le bas,
  • le bol est sensiblement de révolution, et comprend encore une cheminée centrale traversante, une partie basse conformée pour permettre un assemblage au sommet de la cheminée du narguilé, une partie haute comprenant le réceptacle et conformée pour accueillir le foyer, et au moins une deuxième canalisation reliant une entrée ménagée dans la partie basse, préférentiellement radiale et périphérique, à une sortie ménagée dans la partie haute, sensiblement axiale et centrale, au moyen d'un conduit sensiblement parallèle à la cheminée centrale, et la base comprend au moins une traversée, au droit de chaque sortie,
  • le couvercle comprend encore au moins deux parois,
  • le couvercle comprend encore une poignée en matériau isolant thermique, préférentiellement en silicone, préférentiellement sous forme d'une bague périphérique,
  • le couvercle et la base comprennent des moyens de verrouillage mutuel complémentaires,
  • la base et le bol sont conformées pour s'assembler de manière étanche,
  • la base et le bol comprennent des moyens d'indexage en rotation complémentaires,
  • le bol comprend encore une paroi séparant le réceptacle de la cheminée, comprenant au moins une ouverture permettant le passage d'un fluide depuis le réceptacle vers la cheminée,
  • le bol ou la base comprend encore au moins une troisième canalisation, sensiblement horizontale, apte à relier le réceptacle à la cheminée, disposée le cas échéant dans ladite au moins une ouverture et étanche relativement à ladite au moins une deuxième canalisation,
  • ladite au moins une troisième canalisation est angulairement décalée relativement à ladite au moins une deuxième canalisation,
  • ladite au moins une première canalisation est angulairement décalée relativement à ladite au moins une troisième canalisation, afin de maximiser la longueur de trajet du fluide dans le réceptacle,
  • le couvercle comprend encore au moins un évent latéral, préférentiellement en partie basse, angulairement décalé relativement à ladite au moins une première canalisation, et au moins un évent supérieur, préférentiellement au sommet du couvercle.
According to other characteristics of the invention, the smoke generator of the invention comprises one or more of the following optional characteristics considered alone or in all possible combinations:
  • the first circulation is shaped so as to include at least one ascending section,
  • the cover comprises at least one first channel arranged in its thickness capable of allowing the first circulation,
  • the cover is made of a good thermal conductor material, preferably a light alloy, such as aluminum, and the first pipe has a length of at least 1 cm, preferably at least 3 cm,
  • the device is further shaped to allow a substantially central air inlet into the hearth from below,
  • the bowl is substantially of revolution, and further comprises a through central chimney, a lower part shaped to allow assembly at the top of the hookah chimney, an upper part comprising the receptacle and shaped to accommodate the hearth, and at least one second pipe connecting an inlet provided in the lower part, preferably radial and peripheral, to an outlet provided in the upper part, substantially axial and central, by means of a duct substantially parallel to the central chimney, and the base comprises at least one crossing, at the right of each exit,
  • the lid further comprises at least two walls,
  • the lid further comprises a handle made of thermally insulating material, preferably silicone, preferably in the form of a peripheral ring,
  • the lid and the base comprise complementary mutual locking means,
  • the base and the bowl are shaped to fit together in a watertight manner,
  • the base and the bowl comprise complementary rotation indexing means,
  • the bowl further comprises a wall separating the receptacle from the chimney, comprising at least one opening allowing the passage of a fluid from the receptacle to the chimney,
  • the bowl or the base further comprises at least one third pipe, substantially horizontal, capable of connecting the receptacle to the chimney, disposed where appropriate in said at least one opening and sealed relative to said at least one second pipe,
  • said at least one third pipe is angularly offset relative to said at least one second pipe,
  • said at least one first pipe is angularly offset relative to said at least one third pipe, in order to maximize the path length of the fluid in the receptacle,
  • the lid further comprises at least one side vent, preferably in the lower part, angularly offset relative to said au at least one first pipe, and at least one upper vent, preferably at the top of the cover.

L'invention sera davantage comprise à la lecture de la description non limitative qui va suivre, faire en référence aux figures ci-annexées.

  • La figure 1, déjà décrite, présente un narguilé, en combinaison avec lequel l'invention peut être mise en œuvre,
  • la figure 2, déjà décrite, présente le principe des circulations de fluide selon l'art antérieur,
  • la figure 3 présente le principe des circulations de fluide selon l'invention,
  • la figure 4 présente un mode de réalisation du dispositif selon l'invention en vue perspective, depuis un premier point de vue plongeant,
  • la figure 5 présente le dispositif de la figure 4 en vue perspective coupée, depuis le premier point de vue,
  • la figure 6 présente le même dispositif, en vue coupée selon une première direction perpendiculaire à l'axe de la cheminée,
  • la figure 7 présente le même dispositif, en vue coupée selon une deuxième direction perpendiculaire à l'axe de la cheminée, tournée de 45° autour de l'axe de la cheminée relativement à la première direction,
  • la figure 8 présente un couvercle du même dispositif, en vue perspective, depuis le premier point de vue,
  • la figure 9 présente le couvercle de la figure 8, en vue perspective coupée, depuis le premier point de vue,
  • la figure 10 présente une base du même dispositif, en vue perspective, depuis le premier point de vue,
  • la figure 11 présente un bol du même dispositif, en vue perspective, depuis le premier point de vue,
  • la figure 12 présente la base de la figure 10, en vue perspective coupée, depuis le premier point de vue,
  • la figure 13 présente le bol de la figure 11, en vue perspective coupée, depuis le premier point de vue,
  • la figure 14 présente un foyer du même dispositif, en vue perspective depuis un deuxième point de vue contre plongeant,
  • la figure 15 présente le foyer de la figure 14, en vue perspective coupée selon un premier plan de coupe, depuis le deuxième point de vue,
  • la figure 16 présente le foyer de la figure 14, en vue perspective coupée selon un deuxième plan de coupe à 45° relativement au premier plan de coupe, depuis le deuxième point de vue.
The invention will be better understood on reading the non-limiting description which follows, with reference to the appended figures.
  • The figure 1 , already described, presents a hookah, in combination with which the invention can be implemented,
  • the figure 2 , already described, presents the principle of fluid circulation according to the prior art,
  • the picture 3 presents the principle of fluid circulation according to the invention,
  • the figure 4 presents an embodiment of the device according to the invention in perspective view, from a first point of view from above,
  • the figure 5 presents the device of the figure 4 in cut perspective view, from the first point of view,
  • the figure 6 presents the same device, in sectional view along a first direction perpendicular to the axis of the chimney,
  • the figure 7 presents the same device, in sectional view along a second direction perpendicular to the axis of the chimney, turned by 45° around the axis of the chimney relative to the first direction,
  • the figure 8 presents a cover of the same device, in perspective view, from the first point of view,
  • the figure 9 presents the cover of the figure 8 , in cut perspective view, from the first point of view,
  • the figure 10 presents a base of the same device, in perspective view, from the first point of view,
  • the figure 11 presents a bowl of the same device, in perspective view, from the first point of view,
  • the figure 12 presents the basis of figure 10 , in cut perspective view, from the first point of view,
  • the figure 13 presents the bowl of figure 11 , in cut perspective view, from the first point of view,
  • the figure 14 presents a focus of the same device, in perspective view from a second point of view against plunging,
  • the figure 15 presents the hearth of the figure 14 , in perspective view cut according to a first section plane, from the second point of view,
  • the figure 16 presents the hearth of the figure 14 , in perspective view cut along a second section plane at 45° relative to the first section plane, from the second point of view.

Le principe de l'invention est illustré à la figure 3. L'élément chauffant H est disposé au dessus du mélange M dont il séparé de manière sensiblement étanche par un écran S ne comprenant aucun perçage. Le générateur de fumée 1 selon l'invention permet la nécessaire première circulation de fluide C1, mais est conformé de manière à obliger ladite première circulation de fluide C1 entre l'élément chauffant H et le mélange M à présenter une chicane, afin que le trajet du fluide soit nécesairement indirect, non rectiligne et encore préférentiellement selon un trajet comportant au moins une section ascendante A.The principle of the invention is illustrated in picture 3 . The heating element H is arranged above the mixture M from which it is separated in a substantially leaktight manner by a screen S comprising no drilling. The smoke generator 1 according to the invention allows the necessary first circulation of fluid C1, but is shaped in such a way as to force said first circulation of fluid C1 between the heating element H and the mixture M to present a baffle, so that the path of the fluid is necessarily indirect, not rectilinear and even more preferably along a path comprising at least one ascending section A.

Le dispositif 1 générateur de fumée pour narguilé 10 selon l'invention, tel qu'illustré aux figures 4-7 comprend un bol 2 et un foyer 3. Le bol 2 est conformé pour prendre place au sommet d'une cheminée 11 de narguilé 10 et comporte un réceptacle 20 apte à accueillir le mélange M. Le foyer 3 est conformé pour être disposé au sommet du bol 2 au-dessus du mélange M. Le foyer 3 est apte à accueillir un élément chauffant H.The device 1 smoke generator for hookah 10 according to the invention, as illustrated in Figures 4-7 comprises a bowl 2 and a hearth 3. The bowl 2 is shaped to take place at the top of a chimney 11 of a hookah 10 and comprises a receptacle 20 capable of receiving the mixture M. The hearth 3 is shaped to be placed at the top of the bowl 2 above the mixture M. The hearth 3 is able to accommodate a heating element H.

Le foyer 3 comprend une base 4 et un couvercle 5. La base 4 est apte à supporter l'élément chauffant H. La base 4 forme un écran S évitant une combustion trop rapide du mélange M au contact direct de l'élément chauffant H. La base 4 est bonne conductrice thermique afin de communiquer sa chaleur au mélange M. Le couvercle 5 s'assemble avec la base 4 pour refermer le foyer 3, autour de l'élément chauffant H.The hearth 3 comprises a base 4 and a cover 5. The base 4 is able to support the heating element H. The base 4 forms a screen S preventing too rapid combustion of the mixture M in direct contact with the heating element H. The base 4 is a good thermal conductor in order to communicate its heat to the mixture M. The lid 5 is assembled with the base 4 to close the hearth 3, around the heating element H.

Selon une caractéristique importante, le dispositif 1 est conformé pour empêcher une circulation directe entre le foyer 3 qui contient l'élément chauffant H et le réceptacle 20 du bol 2 qui contient le mélange M. Au contraire le dispositif 1 est conformé pour permettre une première circulation de fluide C1 du foyer 3 vers le réceptacle 20 en obligeant cette première circulation C1 à comporter au moins une chicane. Ainsi il n'existe pas de trajet direct rectiligne, de vue directe, entre le foyer 3 et le réceptacle 20. La première circulation C1 de fluide entre le foyer 3 et le réceptacle 20 est indirecte, non rectiligne.According to an important characteristic, the device 1 is shaped to prevent direct circulation between the hearth 3 which contains the heating element H and the receptacle 20 of the bowl 2 which contains the mixture M. On the contrary the device 1 is shaped to allow a first circulation of fluid C1 from hearth 3 to receptacle 20 by forcing this first circulation C1 to include at least one baffle. Thus there is no straight direct path, of direct view, between the hearth 3 and the receptacle 20. The first circulation C1 of fluid between the hearth 3 and the receptacle 20 is indirect, not straight.

Avantageusement encore, la première circulation C1 est conformée de manière à imposer au fluide au moins une section ascendante A. Cette caractéristique avantageuse permet, en utilisant la gravité, d'empêcher les cendres ou débris de charbon, naturellement plus pesants que l'air, de suivre la première circulation C1 et d'atteindre le mélange M. Selon un mode de réalisation, le fluide pénètre dans la première circulation C1 par le haut du foyer 3, obligeant le fluide à monter selon la section ascendante A.Advantageously again, the first circulation C1 is shaped so as to impose on the fluid at least one ascending section A. This advantageous characteristic makes it possible, by using gravity, to prevent ash or coal debris, naturally heavier than air, from to follow the first circulation C1 and to reach the mixture M. According to one embodiment, the fluid enters the first circulation C1 from the top of the hearth 3, forcing the fluid to rise along the ascending section A.

Afin de conformer la première circulation C1, le couvercle 5 comprend au moins une première canalisation 51 ménagée dans l'épaisseur du couvercle 5 apte à permettre la première circulation C1.In order to conform the first circulation C1, the cover 5 comprises at least one first pipe 51 arranged in the thickness of the cover 5 able to allow the first circulation C1.

Selon un possible mode de réalisation la première canalisation 51 débute au niveau d'un trou 55. Ici le couvercle 5 comporte une paroi externe 52 et une paroi interne 53 espacées afin de ménager au moins un passage entre les deux dans l'épaisseur du couvercle 5. Le trou 55 est pratiqué, avantageusement dans le plafond du couvercle 5, dans la seule paroi interne 52. La première canalisation 51 se poursuit entre les deux parois 52,53 jusqu'à redescendre vers la base 4. Au moins un passage 45 traversant la base 4 en regard permet à la canalisation 51 de déboucher dans le réceptacle 20, contenant le mélange M. La jonction entre le couverle 5 et la base 4 est sensiblement étanche, au moins au niveau dudit au moins un passage 45. Le volume à l'intérieur du foyer 3 n'est pas en communication avec ledit au moins un passage 45, afin de ne pas reproduire l'inconvénient de l'art antérieur.According to a possible embodiment, the first pipe 51 begins at a hole 55. Here the cover 5 comprises an outer wall 52 and an inner wall 53 spaced apart in order to provide at least one passage between the two in the thickness of the cover. 5. The hole 55 is made, advantageously in the ceiling of the lid 5, in the only internal wall 52. The first pipe 51 continues between the two walls 52,53 until it descends towards the base 4. At least one passage 45 passing through the base 4 opposite allows the pipe 51 to open into the receptacle 20, containing the mixture M. The junction between the cover 5 and the base 4 is substantially sealed, at least at the level of said at least one passage 45. The volume inside hearth 3 is not in communication with said at least one passage 45, so as not to reproduce the drawback of the prior art.

Selon un mode de réalisation alternatif, sans passage 45 traversant la base 4, la canalisation 51, comprend un contournement, étanche, de la base 4 par l'extérieur, au-delà de sa périphérie.According to an alternative embodiment, without a passage 45 passing through the base 4, the pipe 51 comprises a sealed bypass of the base 4 from the outside, beyond its periphery.

Il peut être constaté, en comparant les schémas de principe de l'art antérieur, figure 2, et de l'invention, figure 3, que la longueur de la première circulation C1, ou ce qui est équivalent, la longueur de la première canalisation 51 est grandement rallongée par l'invention, relativement à une longueur sensibement nulle selon l'art antérieur. Ainsi de par son positionnement dans le couvercle 5 la canalisation 51 peut avantageusement être conformée pour présenter une longueur d'au moins 1 cm, préférentiellement d'au moins 3 cm, voir plus.It can be seen, by comparing the block diagrams of the prior art, picture 2 , and of the invention, picture 3 , that the length of the first circulation C1, or what is equivalent, the length of the first pipe 51 is greatly lengthened by the invention, relative to a substantially zero length according to the prior art. Thus, by its positioning in the cover 5, the pipe 51 can advantageously be shaped to have a length of at least 1 cm, preferably at least 3 cm, or even more.

Le couvercle 5 peut être réalisé en tout matériau, pour peu qu'il supporte les contraintes thermiques occasionnées par la chaleur, tel un matériau plastique, un verre, une céramique ou encore un matériau métallique. Cependant, selon une autre caractéristique avantageuse, le couvercle 5 est réalisé en un matériau bon conducteur thermique. Ce matériau peut être un alliage léger, et par exemple de l'aluminium. Ainsi la longueur importante de canalisation 51 forme un échangeur thermique, qui en relation avec l'air ambiant présent autour de la paroi externe 52 du couvercle 5, réalise un dissipateur apte à refroidir le fluide y circulant. La longueur de parcours est ici un avantage en ce que d'une part elle renforce l'effet refroidissant et d'autre part en ce qu'elle procure un effet régulateur. Il s'ensuit que le fluide parcourant la première circulation C1, en empruntant ladite au moins une canalisation 51, en ressort avec une température régulée, sensiblement constante dans le temps, malgré les possibles variations de la température de l'élément chauffant H. Ceci est particulièrement avantageux pour une bonne combustion contrôlée du mélange M et contribue à améliorer l'expérience du fumeur. De plus, cet effet de régulation thermique rend avantageusement inutile tout moyen de réglage de l'intensité de l'élément chauffant H, par exemple un moyen de réglage de la combustion au moyen d'une entrée d'air réglable.The lid 5 can be made of any material, provided that it withstands the thermal stresses caused by the heat, such as a plastic material, a glass, a ceramic or even a metallic material. However, according to another advantageous characteristic, the cover 5 is made of a material that is a good thermal conductor. This material can be a light alloy, for example aluminum. Thus the long length of pipe 51 forms a heat exchanger which, in relation to the ambient air present around the outer wall 52 of the cover 5, produces a heat sink capable of cooling the fluid circulating therein. The path length is an advantage here in that on the one hand it reinforces the cooling effect and on the other hand that it provides a regulating effect. It follows that the fluid traversing the first circulation C1, by borrowing said at least one pipe 51, comes out with a regulated temperature, substantially constant over time, despite the possible variations in the temperature of the heating element H. This is particularly advantageous for a good controlled combustion of the mixture M and contributes to improving the smoker's experience. In addition, this thermal regulation effect advantageously renders unnecessary any means for adjusting the intensity of the heating element H, for example a means for adjusting the combustion by means of an adjustable air inlet.

Selon une autre caractéristique importante, le dispositif 1 est encore conformé pour permettre une deuxième circulation C2 permettant une entrée d'air dans le foyer 3, sensiblement centrale depuis le bas. Il est ici question de l'air comburant qui vient rejoindre l'élément chauffant H dans le foyer 3 afin d'en permettre la combustion.According to another important characteristic, the device 1 is further shaped to allow a second circulation C2 allowing air to enter the hearth 3, substantially centrally from below. It is a question here of the combustion air which joins the heating element H in the hearth 3 in order to allow its combustion.

Selon l'art antérieur, l'air comburant était directement introduit dans le foyer du fait d'une absence de couvercle ou via au moins un évent pratiqué dans le couvercle, dans le plafond et/ou dans les parois latérales du couvercle. Ceci peut entraîner des difficultés à produire la combustion de l'élément chauffant. Une réponse proposée par certains dispositifs de l'art antérieur est un disposistif permettant de régler le débit d'air entrant, afin de l'augmenter en début de combustion, puis de le réduire ensuite une fois la combustion bien établie. Ceci dégrade l'expérience du fumeur en ce qu'il doit, plusieurs fois au cours d'une session, modifier ledit réglage.According to the prior art, the combustion air was introduced directly into the hearth due to the absence of a cover or via at least one vent made in the cover, in the ceiling and/or in the side walls of the cover. This can cause difficulty in producing combustion of the heating element. A response proposed by certain devices of the prior art is a device making it possible to adjust the incoming air flow, in order to increase it at the start of combustion, then to reduce it thereafter once combustion is well established. This degrades the smoker's experience in that he must, several times during a session, modify said setting.

Selon l'invention, la possibilité d'une entrée d'air basse permet avantageusement de réaliser une deuxième circuation C2 réalisant un tirage naturel, qui s'entretient seul et qui de plus s'autorégule en fonction de la demande : s'accentuant au démarrage, lorsque le dispositif 1 est froid, et diminuant ensuite à mesure que le dispositif 1 chauffe.According to the invention, the possibility of a low air inlet advantageously makes it possible to produce a second circulation C2 producing a natural draught, which maintains itself and which moreover self-regulates according to demand: increasing at starting, when device 1 is cold, and then decreasing as device 1 heats up.

Ceci est rendu possible par une conformation adaptée du dispositif 1. Le bol 2 est agencé autour et comprend une cheminée centrale 21 traversante axialement apte à permettre à la fumée produite de rejoindre la cheminée 11 du narguilé 10. Aussi le bol 2 comprend une partie basse 22 conformée pour permettre un assemblage du bol 2 et du dispositif 1 au sommet de la cheminée 11 du narguilé 10. Cet assemblage peut être réalisé par tout moyen, par exemple par un emboitement. Cet assemblage est avantageusement étanche à la fumée. Le bol 2 comprend encore une partie haute 23 comprenant le réceptacle 20. La partie haute 23 est conformée pour supporter le foyer 3. L'assemblage entre le bol 2 et le foyer 3 peut être réalisé partout moyen, par exemple par un emboîtement. Cet assemblage est avantageusement étanche à la fumée. Le bol 2 comprend encore au moins une deuxième canalisation 24. Une telle deuxième canalisation 24 traverse sensiblement tout le bol 2 axialement et relie une entrée 241 à une sortie 242 au moyen d'un conduit 243 sensiblement parallèle à la cheminée centrale 21. Une entrée 241 est ménagée dans la partie basse 22, préférentiellement de manière radiale et périphérique, afin de ne pertuber ni le cheminement de la fumée dans la cheminée 21,11, ni l'assemblage du bol 2 sur la cheminée 11. La forme et le positionnement radial de l'entrée 241 garantit que cette entrée 241 n'est pas bouchée, y compris par un narguilé plus large au niveau de l'interface de la cheminée 11 avec le bol 2. Une sortie 242 est ménagée dans la partie haute 23, préférentiellement de manière sensiblement axiale et centrale, dans la mesure où la cheminée 21 le permet, de telle manière à apporter de l'air dans le foyer 3, directement sous l'élément chauffant H. Une sortie 242 est disposée directement sous la base 4. Afin de permettre le passage de l'air, la base 4 comprend au moins une traversée 41 sensiblement verticale. Une traversée 41 traverse la base 4 en regard d'une sortie 242 et relie verticalement, de manière sensiblement étanche, une sortie 242 avec l'intérieur du foyer 3, prolongeant ainsi une deuxième canalisation 24. La base 4 comprend avantageusement autant de traversées 41 que le bol 2 comprend de deuxièmes canalisations 24, quatre dans le mode de réalisation illustré. Ces canalisations 24 et traversées 41 sont aptes à être disposées en regard de manière à former une deuxième canalisation étendue 24,41. Ceci permet avantageusement par tirage naturel, d'alimenter en air une combustion de l'élément chaufant H dans le foyer 3.This is made possible by an adapted conformation of the device 1. The bowl 2 is arranged around and comprises a central chimney 21 crossing axially able to allow the smoke produced to reach the chimney 11 of the hookah 10. Also the bowl 2 comprises a lower part 22 shaped to allow assembly of the bowl 2 and the device 1 at the top of the chimney 11 of the hookah 10. This assembly can be achieved by any means, for example by interlocking. This assembly is advantageously smoke-tight. The bowl 2 further comprises an upper part 23 comprising the receptacle 20. The upper part 23 is shaped to support the hearth 3. The assembly between the bowl 2 and the hearth 3 can be made anywhere by means, for example by a nesting. This assembly is advantageously smoke-tight. The bowl 2 further comprises at least one second pipe 24. Such a second pipe 24 crosses substantially the entire bowl 2 axially and connects an inlet 241 to an outlet 242 by means of a conduit 243 substantially parallel to the central chimney 21. An inlet 241 is provided in the lower part 22, preferably radially and peripherally, so as not to disturb either the path of the smoke in the chimney 21,11, or the assembly of the bowl 2 on the chimney 11. The shape and positioning radial of the inlet 241 guarantees that this inlet 241 is not blocked, including by a wider hookah at the interface of the chimney 11 with the bowl 2. An outlet 242 is provided in the upper part 23, preferably in a substantially axial and central manner, insofar as the chimney 21 allows it, in such a way as to bring air into the hearth 3, directly under the heating element H. An outlet 242 is arranged directly under the base 4 . In order to to allow the passage of air, the base 4 comprises at least one substantially vertical crossing 41. A crossing 41 passes through the base 4 facing an outlet 242 and connects vertically, in a substantially sealed manner, an outlet 242 with the interior of the hearth 3, thus extending a second pipe 24. The base 4 advantageously comprises as many crossings 41 that the bowl 2 comprises second pipes 24, four in the illustrated embodiment. These pipes 24 and crossings 41 are able to be arranged facing each other so as to form a second extended pipe 24,41. This advantageously makes it possible, by natural draft, to supply air to a combustion of the heating element H in the hearth 3.

Selon un mode de réalisation avantageux, la base 4 comprend, côté foyer, autour des sorties des traversées 41, une rainure 46, facilitant la sortie de l'air, même lorsqu'un morceau de charbon est disposé au droit d'une traversée 41.According to an advantageous embodiment, the base 4 comprises, on the hearth side, around the outlets of the crossings 41, a groove 46, facilitating the exit of the air, even when a piece of coal is placed in line with a crossing 41 .

Il convient de noter qu'une telle deuxième circulation C2, assurant un tirage par une entrée d'air depuis le bas, est avantageusement rendue possible par le fait que la première circulation C1 ne passe plus au travers de la base 4. A défaut, il existerait un risque de court-circuit, l'air du tirage rejoignant directement la cheminée 21.It should be noted that such a second circulation C2, providing draft by an air inlet from below, is advantageously made possible by the fact that the first circulation C1 no longer passes through the base 4. Failing that, there would be a risk of short-circuiting, the air from the draft directly joining the chimney 21.

Selon un mode de réalisation avantageux, plus particulièrement visible aux figures 5,7,9,15,16 le couvercle 5 comprend encore au moins deux parois 52,53. Tel que décrit précédemment ces deux parois 52,53 en ce qu'elles forment un espace dans l'épaisseur du couvercle 5 permettent le passage d'au moins une première canalisation 51. Elles forment encore, comme décrit précédemment un échangeur thermique permettant de réguler la température de l'air y circulant. Le fait d'étendre la présence d'un vide entre les deux parois 52,53, au-delà du seul besoin de passage d'au moins une canalisation 51, à la totalité de la surface du couvercle 5, présente un autre avantage : la paroi extérieure 52 est nettement moins chaude, étant ainsi séparée par un espace de la paroi 53, très chaude en raison de sa proximité avec l'élément chauffant H. Ceci permet de garantir que la paroi extérieure 52 reste beaucoup plus fraiche et limite les risques de brûlure pour un utilisateur.According to an advantageous embodiment, more particularly visible to figure 5 , 7 , 9 , 15 , 16 the cover 5 further comprises at least two walls 52.53. As previously described, these two walls 52,53 in that they form a space in the thickness of the cover 5 allow the passage of at least a first pipe 51. They also form, as previously described, a heat exchanger making it possible to regulate the temperature of the air circulating there. Extending the presence of a void between the two walls 52,53, beyond the sole need for passage of at least one pipe 51, to the entire surface of the cover 5, has another advantage: the outer wall 52 is much less hot, thus being separated by a space from the wall 53, which is very hot because of its proximity to the heating element H. This makes it possible to guarantee that the outer wall 52 remains much cooler and limits the risk of burns for a user.

L'ajout d'une troisième, voire d'une quatrième paroi, permet d'une part d'augmenter la longueur de la chicane et de la première canalisation 51 et d'autre part de refroidir encore davantage la paroi la plus externe.The addition of a third, or even a fourth wall, makes it possible, on the one hand, to increase the length of the baffle and of the first pipe 51 and, on the other hand, to further cool the outermost wall.

Afin de renforcer encore l'effet anti-brûlure, et permettre avantageusement une manipulation du foyer 3, y compris lorsqu'il est chaud, le couvercle 5 comprend encore une poignée 54 en matériau isolant thermique. Ce matériau isolant thermique peut être tout matériau, tel un matériau plastique, un cuir ou un bois, et peut être par exemple du silicone. La poignée 54 est préférentiellement conformée annulairement en une bague entourrant de manière périphérique le couvercle 5. Alors que l'art antérieur prévoyait une poignée amovible, telle une réutilisation d'une pince à charbon, l'invention intègre une poignée 54 permanente, qui de plus réduit le risque de brûlure.In order to further reinforce the anti-scalding effect, and advantageously allow manipulation of the hearth 3, including when it is hot, the cover 5 further comprises a handle 54 made of heat-insulating material. This heat insulating material can be any material, such as a plastic material, leather or wood, and can be silicone for example. The handle 54 is preferably shaped annularly in a ring peripherally surrounding the lid 5. While the prior art provided for a removable handle, such as a reuse of a charcoal tongs, the invention incorporates a permanent handle 54, which further reduces the risk of burns.

Selon une autre caractéristique, plus particulièrement illustrée aux figures 8,9,10,12,14-16 le couvercle 5 et la base 4 comprennent avantageusement des moyens 44,56 de verrouillage mutuel complémentaires. Ainsi selon le mode de réalisation illustré, au moins un crochet 56, disposé au bas du couvercle 5, est apte à être engagé verticalement dans au moins une fente 44 ménagée dans la base 4. Une rotation permet simplement audit au moins un crochet 56 de venir se verrouiller dans ladite au moins une fente 44. Ceci permet de fermer le foyer 3 en solidarisant le couvercle 5 sur la base 4. Une rotation de sens inverse permet encore de les désolidariser. Avantageusement un même nombre de fente 44 et de crochet 56 sont présents et en regard. Le foyer 3 complet, comprenant le couvercle 5 et la base 4 solidarisés, peut ainsi être manipulé en le saisissant par le couvercle 5, avantageusement par sa poignée 54. Ces caractéristiques simplifient grandement les opérations de manutention et de nettoyage du dispositif 1, y compris lorsqu'il est encore chaud.According to another characteristic, more particularly illustrated in figure 8.9 , 10 , 12 , 14-16 the lid 5 and the base 4 advantageously comprise means 44,56 of complementary mutual locking. Thus according to the illustrated embodiment, at least one hook 56, arranged at the bottom of the cover 5, is capable of being engaged vertically in at least one slot 44 formed in the base 4. A rotation simply allows said at least one hook 56 to come to lock in said at least one slot 44. This makes it possible to close the hearth 3 by securing the cover 5 to the base 4. A rotation in the opposite direction still makes it possible to separate them. Advantageously, the same number of slots 44 and hooks 56 are present and facing each other. The complete hearth 3, comprising the lid 5 and the base 4 secured together, can thus be handled by grasping it by the lid 5, advantageously by its handle 54. These characteristics greatly simplify the handling and cleaning operations of the device 1, including when still hot.

Les moyens de verrouillage 44,56 présentent un degré de symétrie angulaire sous multiple ou égal de celui des circulations C1-C3. Ainsi sur le mode de réalisation préféré illustré, toutes les circulation C1-C3 présentent un degré de symétrie de 4, soit quatre éléments angulairement équirépartis à 90°. Il en est de même pour les moyens de verrouillage 44,56 qui présentent un degré de symétrie égal, soit 4, mais qui pourrait aussi être sous multiple, soit 2 ou 1The locking means 44, 56 have a degree of angular symmetry that is sub-multiple or equal to that of the circulations C1-C3. Thus in the preferred embodiment illustrated, all circulations C1-C3 have a degree of symmetry of 4, ie four elements angularly evenly distributed at 90°. The same is true for the locking means 44,56 which have an equal degree of symmetry, i.e. 4, but which could also be in multiple, i.e. 2 or 1

Un autre degré de symétrie, pair ou impair : 2, 3, 5,..., est possible et équivalent, tant qu'il reste identique ou sous-multiple entre les moyens de verrouillage d'une part et les circulations d'autre part, afin de permettre de les intercaler. Ainsi, par exemple avec un degré de symétrie de 3, on aurait 3 paires de moyens de verouillage, préférentiellement équirépartis angulairement, soit tous les 120°, intercallés avec des circulations C1-C3, elles aussi au nombre de 3, préférentiellement équiréparteis angulairement, soit tous les 120°.Another degree of symmetry, even or odd: 2, 3, 5,..., is possible and equivalent, as long as it remains identical or sub-multiple between the locking means on the one hand and the circulations on the other apart, in order to allow them to be intercalated. Thus, for example with a degree of symmetry of 3, there would be 3 pairs of locking means, preferably angularly evenly distributed, i.e. every 120°, intercalated with C1-C3 circulations, also 3 in number, preferably angularly evenly distributed, i.e. every 120°.

Selon le mode de réalisation illustré, une fente 44 est adjacente à un passage 45, de manière à limiter le nombre d'usinages en permettant une réalisation commune. La fente 44 est la petite découpe plus proche du centre, tandis que le passage 45 est la découpe plus grande vers l'extérieur.According to the illustrated embodiment, a slot 44 is adjacent to a passage 45, so as to limit the number of machining operations by allowing common production. Slot 44 is the smaller cutout closer to the center, while passage 45 is the larger cutout outward.

Selon une autre caractéristique, le dessous de la base 4 et la partie haute 23 du bol 2 sont conformées pour s'assembler de manière sensiblement étanche. Si telles que représentées, les deux pièces sont circulaires, la partie haute 23 du bol 2 peut par exemple présenter un alésage dans lequel vient se loger la base 4 cylindrique. L'assemblage doit avantageusement pourvoir être réalisé ou démonté à la main. Un ajustement légèrement serré assure une étanchéité à la fumée. Il a été vu que la base 4 est avantageusemet en matériau métallique. Le bol 2 peut être en tout matériau, par exemple verre, métal, céramique ou plastique. Selon un mode de réalisation préféré, le bol 2 est réalisé en silicone de qualité alimentaire. Si le bol 2 est réalisé en un matériau élastique, tel un élastomère, son élasticité est avantageusement mise à profit pour assurer l'étanchéité.According to another characteristic, the underside of the base 4 and the upper part 23 of the bowl 2 are shaped to fit together in a substantially sealed manner. If as shown, the two parts are circular, the upper part 23 of the bowl 2 can for example have a bore in which the cylindrical base 4 is housed. The assembly should advantageously be made or dismantled by hand. A slightly snug fit provides a smoke seal. It has been seen that the base 4 is advantageously made of metallic material. The bowl 2 can be made of any material, for example glass, metal, ceramic or plastic. According to a preferred embodiment, the bowl 2 is made of food grade silicone. If the bowl 2 is made of an elastic material, such as an elastomer, its elasticity is advantageously used to ensure sealing.

Le bol 2 et la base 4 coopèrent pour différentes fonctions, telles que la deuxième circulation C2 assurant le tirage, déjà décrite, et d'autres décrites plus avant, qui profitent avantaeusement d'un alignement. Ainsi, pour la deuxième circulation C2, une deuxième canalisation 24 disposée dans le bol 2 est avantageusement alignée avec une traverséee 41 disposée dans la base 4. Pour assurer cet alignement, la base 4 et le bol 2 comprennent respectivement des moyens complémentaires d'indexage 42,27. Ces moyens d'indexage 42,27 assurent un positionement indexé en rotation et une fonction d'antirotation. Ceci est plus particulièrement visible aux figures 10-13. La base 4 comprend au moins un moyen d'indexage 42, ici un ergot 42, apte à engager un moyen d'indexage compémentaire 27, ici un créneau 27, disposé en regard dans le bol 2.The bowl 2 and the base 4 cooperate for various functions, such as the second circulation C2 ensuring the draw, already described, and others described further on, which advantageously benefit from an alignment. Thus, for the second circulation C2, a second pipe 24 arranged in the bowl 2 is advantageously aligned with a bushing 41 arranged in the base 4. To ensure this alignment, the base 4 and the bowl 2 respectively comprise complementary indexing means 42.27. These indexing means 42,27 ensure indexed positioning in rotation and an anti-rotation function. This is particularly visible in Figures 10-13 . The base 4 comprises at least one indexing means 42, here a lug 42, able to engage a complementary indexing means 27, here a slot 27, arranged opposite in the bowl 2.

A l'instar des moyens de verrouillage 44,56, les moyens d'indexage 27,42 présentent un degré de symétrie sous multiple ou égal de celui des circulations C1-C3.Like the locking means 44,56, the indexing means 27,42 have a degree of symmetry that is sub-multiple or equal to that of the circulations C1-C3.

Selon une autre caractéristique, plus particulièrement visible aux figures 11,13, le bol 2 comprend encore une paroi 28 séparant le réceptacle 20 de la cheminée 21. Cette paroi 28 de forme sensiblement annulaire, délimite ainsi un réceptacle 20 en forme sensiblement torique. Cette paroi 28 permet avantageusement de contenir le mélange M dans le réceptacle 20 périphérique.According to another characteristic, more particularly visible to figure 11 , 13 , the bowl 2 further comprises a wall 28 separating the receptacle 20 from the chimney 21. This wall 28 of substantially annular shape, thus delimits a receptacle 20 of substantially toroidal shape. This wall 28 advantageously makes it possible to contain the mixture M in the peripheral receptacle 20 .

Afin de permettre à la fumée, produite à partir du mélange M dans le réceptacle 20, de rejoindre la cheminée 21 selon un trajet sensiblement horizontal, la paroi 28 est avantageusement découpée d'au moins une ouverture 29.In order to allow the smoke, produced from the mixture M in the receptacle 20, to reach the chimney 21 along a substantially horizontal path, the wall 28 is advantageously cut out with at least one opening 29.

Dans le générateur de fumée 1 selon l'invention cohabitent au moins trois circulations de fluide C1-C3. La première circulation de fluide C1 entre le foyer 3 et le réceptacle 20 via ladite au moins une première canalisation 51 et la deuxième circulation C2 d'entrée d'air basse pour le tirage via ladite au moins une deuxième canalisation 24,41 ont déjà été décrites. Ces circulations se croisent de manière étanche, sans mélanger les fluides qu'elles véhiculent.In the smoke generator 1 according to the invention cohabit at least three fluid circulations C1-C3. The first circulation of fluid C1 between the hearth 3 and the receptacle 20 via said at least one first pipe 51 and the second low air inlet circulation C2 for the draft via said at least one second pipe 24,41 have already been described. These circulations intersect in a sealed manner, without mixing the fluids they carry.

Il convient d'ajouter une troisième circulation C3 de fumée, sensiblement horizontale, entre le réceptacle 20 et la cheminée 21. Ceci est plus particulièrement visible aux figures 14-16. A cette fin, le dispositif 1 comprend au moins une troisième canalisation 43. Ladite troisième canalisation 43, sensiblement horizontale, afin de traverser la paroi 28, est disposée dans ladite au moins une ouverture 29, si celle-ci est présente. Une telle troisième canalisation 43, doit être disposée à l'interface entre la base 4 et le bol 2, par exemple au sein d'une pièce échangeur, comprenant encore ladite au moins une traversée 41 sensiblement verticale.It is appropriate to add a third circulation C3 of smoke, substantially horizontal, between the receptacle 20 and the chimney 21. This is more particularly visible to Figures 14-16 . To this end, the device 1 comprises at least one third pipe 43. Said third pipe 43, substantially horizontal, in order to pass through the wall 28, is placed in the said at least one opening 29, if the latter is present. Such a third pipe 43 must be arranged at the interface between the base 4 and the bowl 2, for example within an exchanger part, further comprising said at least one substantially vertical crossing 41.

Tel qu'illustré plus particulièrement aux figures 14-16, dans le mode de réalisation illustré, cet échangeur est réalisé dans la base 4. Alternativement, il pourrait être réalisé dans une pièce indépendante ou encore alternativement dans le bol 2.As illustrated more particularly in Figures 14-16 , in the illustrated embodiment, this exchanger is made in the base 4. Alternatively, it could be made in a separate room or even alternatively in the bowl 2.

Ladite au moins une troisième canalisation 43, sensiblement horizontale, croise de manière étanche, ladite au moins une deuxième canalisation 24,41, sensiblement verticale. Pour cela, ladite au moins une troisième canalisation 43 est angulairement décalée relativement à ladite au moins une deuxième canalisation 24,41. Ceci est plus particulièrement visible aux figures 12,13,7,14-16. Selon le mode de réalisation illustré, il est réalisé un premier nombre de traversées 41, permettant la deuxième canalisation C2, ici égal à 4. Avantageusement ces traversées 41 sont angulairement équiréparties, soit ici tous les 90°. Il est réalisé un même nombre de troisièmes canalisations 43. Avantageusement ces canalisations 43 sont aussi angulairement équiréparties, soit ici tous les 90°, en les décalant, afin de les intercaler avec les traversées 41, sensiblement d'un angle de 45°.Said at least one third pipe 43, substantially horizontal, intersects in a sealed manner, said at least one second pipe 24,41, substantially vertical. For this, said at least one third pipe 43 is angularly offset relative to said at least one second pipe 24,41. This is particularly visible in figure 12,13 , 7 , 14-16 . According to the illustrated embodiment, a first number of bushings 41 is made, allowing the second pipe C2, here equal to 4. Advantageously, these bushings 41 are angularly evenly distributed, ie here every 90°. The same number of third pipes 43 is made. Advantageously, these pipes 43 are also angularly evenly distributed, ie here every 90°, by shifting them, in order to insert them with the crossings 41, substantially at an angle of 45°.

Dans un mode de réalisation comprenant 3 traversées 41, avantageusement équiréparties tous les 120°, il convient d'avoir 3 troisièmes canalisations 43, avantageusement angulairement équiréparties tous les 120°, en les décalant, afin de les intercaler avec les traversées 41, sensiblement d'un angle de 60°.In an embodiment comprising 3 crossings 41, advantageously evenly distributed every 120°, it is advisable to have 3 third pipes 43, advantageously angularly evenly distributed every 120°, by offsetting them, in order to insert them with the crossings 41, substantially d an angle of 60°.

Il a été vu que le fluide issu du foyer 3, via la première circulation C1 empruntant au moins une première canalisation 51, arrive dans le réceptacle 20 via au moins un passage 45 ménagé dans la base 4. Ce fluide, comprenant majoritairement de l'air chaud, permet la combustion du mélange M et la fumée ainsi produite emprunte la troisième circulation C3 pour rejoindre la cheminée 21. Avantageusement, et tel que plus particulièrement visible aux figures 14-16, afin d'augmenter la longueur 47 du trajet du fluide auprès du mélange M, la distance 47 entre la première circulation C1 et la troisième circulation C3 est maximisée. Pour cela la distance 47 entre la sortie de la permière circulation C1, soit la sortie d'une première canalisation 51 au niveau d'un passage 45, et l'entrée de la troisième circulation C3, soit l'entrée d'une troisième canalisation 43, est maximisée. Dans le mode de réalisation préféré illustré, 4 passages 45 sont présents, équirépartis angulairement, soit tous les 90°. De même, 4 troisièmes canalisations 43 sont présentes, équiréparties angulairement, soit tous les 90°. Aussi la maximisation est réalisée en décalant angulairement, ici de 45°, les 4 passages 45 et les 4 troisièmes canalisations 43.It has been seen that the fluid coming from the hearth 3, via the first circulation C1 borrowing at least a first pipe 51, arrives in the receptacle 20 via at least one passage 45 made in the base 4. This fluid, mainly comprising hot air, allows the combustion of the mixture M and the smoke thus produced borrows the third circulation C3 to join the chimney 21. Advantageously, and as more particularly visible to the Figures 14-16 , in order to increase the length 47 of the path of the fluid near the mixture M, the distance 47 between the first circulation C1 and the third circulation C3 is maximized. For this the distance 47 between the exit of the first circulation C1, that is the exit of a first pipe 51 at the level of a passage 45, and the entry of the third circulation C3, that is the entry of a third pipe 43, is maximized. In the illustrated preferred embodiment, 4 passages 45 are present, equally distributed angularly, ie every 90°. Similarly, 4 third pipes 43 are present, equally distributed angularly, ie every 90°. Also maximization is achieved by angularly shifting, here by 45°, the 4 passages 45 and the 4 third pipes 43.

Selon une autre caractéristique, le couvercle 5 comprend encore au moins un évent latéral 57, préférentiellement en partie basse. Un tel évent latéral 57 constitue une entrée d'air additionnelle. Il est important de noter qu'un tel évent latéral 57 traverse totalement le couvercle 5 de manière étanche vis-à-vis de l'espace entre les deux parois 52,53 et vis-à-vis de ladite au moins une première canalisation 51. Ceci peut être vu plus particulièrement en comparant les figures 6 et 7 entre lesquelles le dispositif 1 a été tourné de 45° autour de l'axe de la cheminée 21 ou encore à la figure 9. Au niveau d'un évent latéral 57 une toile continue rejoint les deux parois 52,53 de manière étanche. Ceci est plus particulièrement visible dans l'évent latéral 57 de la figure 9 ou dans celui de la figure 16.According to another characteristic, the cover 5 further comprises at least one side vent 57, preferably in the lower part. Such a side vent 57 constitutes an additional air inlet. It is important to note that such a side vent 57 passes completely through the lid 5 in a sealed manner vis-à-vis the space between the two walls 52,53 and vis-à-vis said at least one first pipe 51 This can be seen most particularly by comparing the figure 6 and 7 between which the device 1 has been rotated by 45° around the axis of the chimney 21 or else at the figure 9 . At a side vent 57 a continuous fabric joins the two walls 52,53 in a sealed manner. This is more particularly visible in the side vent 57 of the figure 9 or in that of figure 16 .

Dans le mode de réalisation illustré, les évents latéraux 57, au nombre de 4, sont avantageusement angulairement équirépartis, soit tous les 90°. De même les premières canalisations 51, et les passages 45 en regard qui les prolongent dans la base 4, sont au nombre de 4 et sont avantageusement angulairement équirépartis, soit tous les 90°, avantageusement décalés sensiblement d'un angle de 45°, afin de s' intercaler entre les évents latéraux 57.In the illustrated embodiment, the side vents 57, 4 in number, are advantageously angularly evenly distributed, ie every 90°. Similarly, the first pipes 51, and the facing passages 45 which extend them into the base 4, are 4 in number and are advantageously angularly evenly distributed, i.e. all the 90°, advantageously offset substantially by an angle of 45°, in order to fit between the side vents 57.

Selon une autre caractéristique, le couvercle 5 comprend encore au moins un évent supérieur 58, préférentiellement au sommet du couvercle 5.According to another characteristic, the cover 5 further comprises at least one upper vent 58, preferably at the top of the cover 5.

Claims (16)

  1. A smoke generator device (1) for a hookah (10), comprising a bowl (2) and a hearth (3), the bowl (2) being shaped so as to take place at the top of a chimney (11) of a hookah (10) and including a receptacle (20) adapted to receive a smoking mixture (M), the hearth (3) being shaped so as to be disposed at the top of the bowl (2) above the mixture (M), being adapted to receive a heater element (H) and comprising a base (4), adapted to support the heater element (H) and to communicate its heat to the mixture (M), and a cover (5) enclosing the hearth (3), the device (1) being shaped so as to enable a first fluid circulation (C1) from the hearth (3) to the receptacle (20), characterized in that the first circulation (C1) includes at least one baffle which makes it possible to avoid a straight direct path, of direct view, between the hearth (3) and the receptacle (20).
  2. The device (1) according to the preceding claim, wherein the first circulation (C1) is shaped so as to comprise at least one ascending section (A).
  3. The device (1) according to any one of the preceding claims, wherein the cover (5) comprises at least one first channel (51) formed across its thickness adapted to enable the first circulation (C1).
  4. The device (1) according to the preceding claim, wherein the cover (5) is made of a good heat-conducting material, preferably a light alloy, such as aluminum, and wherein the first channel (51) has a length of at least 1 cm, preferably at least 3 cm.
  5. The device (1) according to any one of the preceding claims, further shaped so as to enable a second circulation (C2) ensuring an air inlet into the hearth (3) which is substantially central from the bottom.
  6. The device (1) according to the preceding claim, wherein the bowl (2) substantially has a shape of revolution, and further comprises a through central chimney (21), a lower portion (22) shaped so as to enable an assembly at the top of the chimney (11) of the hookah (10), an upper portion (23) comprising the receptacle (20) and shaped so as to receive the hearth (3), and at least one second channel (24) connecting a preferably radial and peripheral inlet (241) formed in the lower portion (22) to a substantially axial and central outlet (242) formed in the upper portion (23) by means of a conduit (243) substantially parallel to the central chimney (21), and wherein the base (4) comprises at least one via (41), facing each outlet (242).
  7. The device (1) according to any one of the preceding claims, wherein the cover (5) comprises at least two walls (52, 53).
  8. The device (1) according to any one of the preceding claims, wherein the cover (5) further comprises a handle (54) made of a heat-insulating material, preferably of silicone, preferably in the form of a peripheral ring.
  9. The device (1) according to any one of the preceding claims, wherein the cover (5) and the base (4) comprise complementary interlocking means (44, 56).
  10. The device (1) according to any one of the preceding claims, wherein the base (4) and the bowl (2) are shaped so as to be assembled in a tight manner.
  11. The device (1) according to any one of the preceding claims, wherein the base (4) and the bowl (2) comprise complementary rotational indexing means (42, 27).
  12. The device (1) according to any one of the preceding claims, wherein the bowl (2) further comprises a wall (28) separating the receptacle (20) from the chimney (21), comprising at least one opening (29) enabling the passage of a smoke from the receptacle (20) to the chimney (21).
  13. The device (1) according to claim 6, wherein the bowl (2) or the base (4) further comprises at least one substantially horizontal third channel (43) adapted to connect the receptacle (20) to the chimney (21), disposed, where appropriate, in said at least one opening (29) and sealed with respect to said at least one second channel (24, 41).
  14. The device (1) according to the preceding claim, wherein said at least one third channel (43) is angularly offset relative to said at least one second channel (24, 41).
  15. The device (1) according to any of claims 13 or 14, wherein said at least one first channel (51) is angularly offset relative to said at least one third channel (43), in order to maximize the path length (47) of the fluid in the receptacle (20).
  16. The device (1) according to any one of the preceding claims, wherein the cover (5) further comprises at least one lateral vent (57), preferably at the lower portion, angularly offset relative to said at least one first channel (51), and at least one upper vent (58), preferably at the top of the cover (5)
EP17832284.8A 2016-12-21 2017-12-21 Improved shisha or hookah Active EP3558036B1 (en)

Applications Claiming Priority (2)

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FR1663057A FR3060261B1 (en) 2016-12-21 2016-12-21 CHICHA OR NARGUILE PERFECTION
PCT/FR2017/053802 WO2018115781A1 (en) 2016-12-21 2017-12-21 Improved shisha or hookah

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EP3558036A1 EP3558036A1 (en) 2019-10-30
EP3558036B1 true EP3558036B1 (en) 2022-11-30

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EP (1) EP3558036B1 (en)
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US12201144B2 (en) 2019-12-15 2025-01-21 Shaheen Innovations Holding Limited Hookah device
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Also Published As

Publication number Publication date
FR3060261B1 (en) 2019-05-17
FR3060261A1 (en) 2018-06-22
EP3558036A1 (en) 2019-10-30
CN110087498A (en) 2019-08-02
WO2018115781A1 (en) 2018-06-28
US20190364960A1 (en) 2019-12-05

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