EP3729979B1 - Portable water pipe - Google Patents

Description

TECHNICAL FIELD OF THE INVENTION

The technical field of the invention is that of water pipes, in particular portable water pipes.

TECHNOLOGICAL BACKGROUND OF THE INVENTION

Water pipes, also called hookahs, or shisha pipes, are special pipes in which the smoke produced by the combustion of tobacco is brought into a water tank through a tube that plunges into the water contained in it. reservoir (tube which is hereinafter called the dip tube). The smoke then passes into the water contained in this tank, in the form of bubbles which hatch on the surface of the water. After having been thus filtered by its passage through water, the smoke is inhaled by the user, via a flexible suction pipe.

A water pipe is generally quite large and heavy, and is therefore intended to remain stationary, for example placed on a table, during its use. To allow the user to sit at a few distances from the pipe, and to allow him some freedom of movement, the suction pipe has a length which is generally of the order of a meter. As for the diameter of the pipe, it is generally between 1 and 3 centimeters, to allow easy aspiration of the smoke.

In the field of water pipes, a new need has arisen in recent years, due to the multiplication of trips and trips, professional or private, with which individuals are confronted. Indeed, as explained above, a traditional water pipe is generally bulky. In addition, it has a generally complex overall shape, with several members projecting out of the tank (hearth, cup, smoke supply tube, suction pipe), liable to catch on obstacles or detach from the assembly during transport. The suction pipe in particular makes this transport inconvenient, because of its length and its rather large diameter. US 8,905,038 B2 discloses a propeller-shaped suction hose reel placed on the exterior of a portable water pipe. DE 196 48 320 A1 proposes to roll up the suction pipe and place it directly, without using a reel, inside the water pipe for transport.

SUMMARY OF THE INVENTION

• un corps principal, avec un fond et une ou plusieurs parois latérales qui délimitent ensemble le volume interne de la pipe à eau, et, à l'opposé du fond, une ouverture,
• un chapeau amovible, engagé dans ladite ouverture de manière à fermer le corps principal, le chapeau étant pourvu d'un foyer pour la combustion de tabac et d'un tube plongeur qui s'étend dans le volume interne de la pipe à eau, en direction du fond, le tube plongeur mettant en communication le foyer et le volume interne de la pipe à eau, et
• une ouverture d'aspiration, à laquelle peut être raccordé un tuyau d'aspiration amovible, et qui met en communication l'extérieur de la pipe à eau et son volume interne,
• la pipe à eau comprenant en outre un enrouleur qui comporte un tube cylindrique pourvu extérieurement d'une nervure qui entoure plusieurs fois le tube cylindrique en formant une hélice, de manière à pouvoir guider le tuyau d'aspiration souple lors de l'enroulement du tuyau d'aspiration sur le tube cylindrique, l'enrouleur étant dimensionné de manière à pouvoir être logé dans le volume interne de la pipe à eau, l'enrouleur entourant alors le tube plongeur.

To at least partially solve the above-mentioned problems, the invention provides a portable water pipe comprising:

• a main body, with a bottom and one or more side walls which together delimit the internal volume of the water pipe, and, opposite the bottom, an opening,
• a removable cap, engaged in said opening so as to close the main body, the cap being provided with a hearth for the combustion of tobacco and with a dip tube which extends in the internal volume of the water pipe, in direction of the bottom, the dip tube connecting the hearth and the internal volume of the water pipe, and
• a suction opening, to which a removable suction pipe can be connected, and which places the outside of the water pipe and its internal volume in communication,
• the water pipe further comprising a reel which comprises a cylindrical tube provided on the outside with a rib which several times surrounds the cylindrical tube forming a helix, so as to be able to guide the flexible suction pipe when the pipe is wound up suction on the cylindrical tube, the reel being dimensioned so as to be able to be housed in the internal volume of the water pipe, the reel then surrounding the dip tube.

Thanks to the reel, the suction pipe, which is bulky, can be easily stored inside the water pipe for the storage or transport of the water pipe. The reel also prevents crushing of the pipe and allows it to be given a moderate and constant radius of curvature.

When the pipe is wound on the reel, the reel is placed in the annular housing of said annular receptacle, and the cap closes the main body of the water pipe, all the elements necessary for the operation of the water pipe water can be found housed inside the water pipe itself, making it convenient to handle, transport and store. This particular arrangement makes it possible in particular to give a smooth exterior appearance, without protrusions or reliefs to the water pipe (in which the suction pipe is housed), the pipe having the exterior shape of a cylinder, for example, which facilitates still handling and storage.

Preferably, the reel constitutes a removable part, which is not linked to the other elements of the water pipe, and which can be freely withdrawn from the water pipe. This makes the reel more manageable and therefore facilitates the unwinding and winding of the hose on the reel, in particular in relation to a configuration in which the reel would be integral with the cap or the dip tube.

• un vase destiné à contenir de l'eau, avec un fond, qui forme le fond du corps principal, et au moins une paroi latérale raccordée au fond et qui s'étend du fond jusqu'à une ouverture du vase, et
• un réceptacle annulaire qui comporte une paroi annulaire externe et une paroi annulaire interne raccordées l'une à l'autre, à leur extrémité inférieure, par une paroi en retour de manière à délimiter entre elles un logement annulaire ouvert à son extrémité supérieure et apte à recevoir l'enrouleur,
• le réceptacle annulaire étant fixé au vase du côté de ladite paroi en retour, en formant une jonction étanche avec le vase tout le long de l'ouverture du vase.

In addition, provision can be made for the main body to include:

• a vessel for containing water, with a bottom, which forms the bottom of the main body, and at least one side wall connected to the bottom and which extends from the bottom to an opening of the vessel, and
• an annular receptacle which comprises an external annular wall and an internal annular wall connected to each other at their lower end by a return wall so as to define between them an annular housing open at its upper end and suitable for receive the reel,
• the annular receptacle being fixed to the vessel on the side of said return wall, forming a sealed junction with the vessel all along the opening of the vessel.

The particular configuration defined in the above paragraph makes it possible to divide the internal volume of the pipe into two distinct parts, hermetically separated from each other, one intended to accommodate the reel (with or without the pipe), and the other, in the vase, intended to receive the filtering water. This avoids contacting the hose or the reel with the filtering water. This configuration allows in particular, when using the pipe, so when water is present in the vase, to store the reel in the main body of the pipe (which avoids losing it or making it dirty. ), without putting the reel in contact with the water contained in the vessel. This arrangement also makes it possible, when the pipe is in the transport configuration (with the pipe wound on the reel and housed in the annular receptacle in question) to prevent soiling or wetting of the pipe. This is interesting because the pipe should be kept clean and free from mold as much as possible. This configuration also makes it possible to limit the volume of the vessel (since the pipe is housed outside the vessel itself), which simplifies any cleaning of the vessel and avoids overfilling with water.

Provision can also be made for the vessel and the receptacle to be fixed to one another by reversible fixing means, for example by a system of threads, or by force-clipping, so as to allow disassembly. and easy reassembly of the vase on the receptacle, to be able to more easily empty and clean the vase after use.

The suction opening can be made in the cap (rather than in a side wall of the main body, for example), which then allows great freedom of arrangement of the internal volume of the water pipe.

Provision can also be made for an annular chamber to be formed in the cap, around the dip tube, said chamber opening out, axially, opposite the hearth, on the side of the internal volume of the water pipe (otherwise formulated, this chamber is open on the lower side and overlooks the internal volume of the pipe), said chamber also opening out laterally, outside the water pipe, through said suction opening, formed laterally on the cap.

Furthermore, the cap can be shaped so as to be able to be engaged in the upper opening of the annular housing defined by the annular receptacle mentioned above, so as to hermetically close this housing, as well as the internal volume of the pipe, when the hat is in place on the main body of the pipe.

The reel can be provided, at a lower end of the helix formed by said rib, with a first fixing member in which or on which a neck of the suction pipe can be engaged in force. This secures one end of the hose to the reel, before rewinding the hose. This fixing member can for example be produced in the form of a cylindrical stud having a diameter slightly greater than the internal diameter of the pipe, the axis of the stud being ortho-radial with respect to the axis of the reel (c ' i.e. relative to the axis of the cylindrical tube of the reel). The reel can also be provided, at an upper end of the helix formed by said rib, with a second fixing member in which or on which the suction pipe can be engaged in force. This finally makes it possible to secure the hose and the reel, once the hose has been wound up on it. This second fixing member can for example be produced in the form of a pair of platforms, parallel to one another and located opposite each other, each platform extending a portion of the rib in a helix, outwardly, radially relative to the cylindrical tube of the reel. The two platforms in question can be separated by a distance equal to or slightly less than the external diameter of the pipe.

• un conduit de purge, qui relie le volume interne de la pipe à eau à l'extérieur de la pipe à eau, et qui débouche à l'extérieur de la pipe à eau par une ouverture de purge distincte de l'ouverture d'aspiration, et
• un clapet anti-retour configuré de manière à :
  • autoriser le passage d'air et de fumée à travers le conduit de purge lorsqu'une pression dans le volume interne de la pipe à eau est supérieure à une pression à l'extérieur de la pipe à eau, et de manière à
  • obturer le conduit de purge lorsque la pression dans le volume interne de la pipe à eau est inférieure à la pression à l'extérieur de la pipe à eau.

We can also provide that the water pipe includes:

• a purge duct, which connects the internal volume of the water pipe to the outside of the water pipe, and which opens to the outside of the water pipe through a purge opening separate from the suction opening , and
• a non-return valve configured so as to:
  • allow the passage of air and smoke through the purge duct when a pressure in the internal volume of the water pipe is greater than a pressure outside the water pipe, and so as to
  • close the purge pipe when the pressure in the internal volume of the water pipe is lower than the pressure outside the water pipe.

The purge duct and the non-return valve can for example be arranged in the bonnet.

The invention will be better understood on reading the following description and on examining the accompanying figures.

BRIEF DESCRIPTION OF THE FIGURES

• La figure 1 [Fig. 1] représente schématiquement une pipe à eau conforme aux enseignements de l'invention, en configuration de transport.
• La figure 2 [Fig. 2] représente schématiquement la pipe à eau de la figure 1, dépourvue de son couvercle de protection.
• La figure 3 [Fig. 3] représente schématiquement la pipe à eau de la figure 1, vue en coupe, ainsi que son enrouleur amovible.
• La figure 4 [Fig. 4] montre différents constituants de la pipe à eau de la figure 1, démontée, vus en perspective.
• La figure 5 [Fig. 5] montre plus en détail un chapeau de la pipe à eau de la figure 1, vu en perspective.
• La figure 6 [Fig. 6] est une vue en perspective d'un enrouleur de la pipe à eau de la figure 1.
• La figure 7 [Fig. 7] est la vue de face de l'enrouleur de la pipe à eau de la figure 1.
• La figure 8 [Fig. 8] est la vue de droite de l'enrouleur de la pipe à eau de la figure 1.
• La figure 9 [Fig. 9] est la vue de gauche de l'enrouleur de la pipe à eau de la figure 1.
• La figure 10 [Fig. 10] est la vue de dessous de l'enrouleur de la pipe à eau de la figure 1.
• La figure 11 [Fig. 11] est la vue de dessus de l'enrouleur de la pipe à eau de la figure 1.
• La figure 12 [Fig. 12] représente schématiquement la pipe à eau de la figure 1, en perspective, partiellement démontée (en vue « éclatée »).

The figures are presented as an indication and in no way limit the invention.

• The figure 1 [Fig. 1 ] schematically represents a water pipe in accordance with the teachings of the invention, in the transport configuration.
• The figure 2 [Fig. 2 ] schematically represents the water pipe of the figure 1 , without its protective cover.
• The figure 3 [Fig. 3 ] schematically represents the water pipe of the figure 1 , sectional view, as well as its removable reel.
• The figure 4 [Fig. 4 ] shows different constituents of the water pipe from the figure 1 , disassembled, seen in perspective.
• The figure 5 [Fig. 5 ] shows in more detail a hat of the water pipe of the figure 1 , seen in perspective.
• The figure 6 [Fig. 6 ] is a perspective view of a reel of the water pipe from the figure 1 .
• The figure 7 [Fig. 7 ] is the front view of the water pipe reel of the figure 1 .
• The figure 8 [Fig. 8 ] is the right view of the water pipe reel from the figure 1 .
• The figure 9 [Fig. 9 ] is the left view of the water pipe reel from the figure 1 .
• The figure 10 [Fig. 10 ] is the bottom view of the water pipe reel of the figure 1 .
• The figure 11 [Fig. 11 ] is the top view of the reel of the water pipe of the figure 1 .
• The figure 12 [Fig. 12 ] schematically represents the water pipe of the figure 1 , in perspective, partially disassembled (in "exploded" view).

DETAILED DESCRIPTION

• un corps principal 1 de la pipe, qui comprend ici un vase 3 cylindrique sur lequel est fixé un réceptacle annulaire 4,
• un chapeau 2 amovible, qui ferme le corps principal 1, le chapeau 2 étant pourvu d'un foyer 6 pour la combustion de tabac (voir la figure 2) et d'un tube plongeur 51, une ouverture d'aspiration 52 étant pratiquée dans le chapeau pour mettre en communication l'extérieur de la pipe à eau et le volume interne de celle-ci, et
• un couvercle à grille, 7, qui vient s'emboiter sur le chapeau 2.

The figure 1 shows a portable water pipe 10, in the transport configuration. In this figure, we can see:

• a main body 1 of the pipe, which here comprises a cylindrical vessel 3 on which an annular receptacle 4 is fixed,
• a removable cap 2, which closes the main body 1, the cap 2 being provided with a hearth 6 for the combustion of tobacco (see figure 2 ) and a dip tube 51, a suction opening 52 being made in the cap to put the outside of the water pipe and the internal volume of the latter in communication, and
• a grid cover, 7, which fits over the bonnet 2.

The cover 7 is useful in particular when the pipe is in use. The grid allows the passage of the air, necessary for the functioning of the pipe, while protecting the hearth, thus preventing the user from being able to burn himself on the charcoal placed on the hearth to allow the combustion of the tobacco. With the lid, the pipe measures for example between 15 and 30 centimeters high.

The figure 2 represents the water pipe 10, in the same configuration as on the figure 1 , but without the cover 7.

The internal arrangement of the pipe is shown on the figure 3 , which is a schematic sectional view of the pipe, in the configuration for use.

In the particular embodiment described here, the vessel 3 is cylindrical. It comprises a bottom 30, and a cylindrical side wall 31 which connects to the bottom 30 and which extends to an opening 32 of the vessel, which is circular. It contains water, identified by the reference 33, in the figures. As a variant, the vase could however have a shape different from a cylinder; for example, it could be in the form of a flat-bottomed balloon having a circular top opening.

Here, the annular receptacle 4 is cylindrical, of the same external diameter as the vessel 3. The cover 7 is moreover also cylindrical, of the same external diameter as the vessel 3, and as the cap 2. We thus obtain a pipe having a smooth, homogeneous exterior appearance, without protruding part, which facilitates the transport, handling and storage of the pipe.

The annular receptacle 4, which forms the upper part of the main body of the pipe, comprises an external cylindrical wall 41 and an internal cylindrical wall 44 connected to each other, at their lower end, by a return wall 43, so as to define between them an annular housing L open at its upper end. The annular housing L thus forms a sort of annular groove, with a U-shaped section, open on the upper side, and the bottom of which is formed by the return wall 43. The annular receptacle 4 extends around the axis of the pipe. water (that is to say around the axis on which is centered the main body of the pipe, axis which corresponds here to the axis of the cylindrical walls 41 and 44). The annular receptacle 4 therefore leaves free a central volume, here substantially cylindrical, located at the level of the axis of the pipe (centered on this axis), and which forms a free passage passing through the annular receptacle 4 right through, from the top. down. Here, the return wall 43 is extended orthogonally with respect to the axis of the pipe.

The annular receptacle 4 is fixed on the vessel 3 so that the opening 32 of the vessel matches the circular ridge located at the border between the outer cylindrical wall 41 and the return wall 43. The junction between the annular receptacle 4 and the vessel 3 is produced for example by screwing, by means of complementary threads present respectively on the vessel, and at the lower end of the external cylindrical wall 41. The external cylindrical wall 41 can be extended slightly beyond the return wall 43 (which is flat, here), to form a circular rim inside which a screw thread is made. In this case, the annular receptacle 4 comprises, in the lower part, a part with a female thread complementary to a male thread present on the vessel 3.

The bottom 30 of the vessel 3, its side wall 31, and the external cylindrical wall 41 of the annular receptacle together delimit the internal volume V of the pipe (volume which is therefore cylindrical, here, and which extends from the bottom 30, up to at the open upper end of the annular receptacle The opening (here circular) of the main body 1 is formed here by the free upper end 42 of the external cylindrical wall 41.

The cap 2 has the general shape of a thick disc, made of rubber or silicone, closing off the main body 1 of the pipe. The hearth 6 for the combustion of tobacco is located on the top of the cap 2. The cap is further provided with the plunger tube 51 which extends into the internal volume V of the water pipe, in the direction of the bottom 30. The tube plunger passes through the cap 2 to be connected to the hearth 6, so as to place the hearth 6 and the internal volume V of the water pipe in communication. The dip tube 51 extends, from the cap 2 into the vessel 3, through the free passage which passes through the annular receptacle 4 from top to bottom, along the axis of the pipe, to finally dive into the filter water 33.

The cap 2 also comprises, on the lower side, a thick annular lip 54, engaged in the (upper) opening of the annular receptacle 4, which makes it possible to hermetically close the annular housing L, as well as the whole of the internal volume V the water pipe (except for the inlet formed by the plunger tube, the outlet formed by the suction opening 52, and a drain opening 23 - see figure 3 ).

An annular chamber 53 is formed in the cap 2, around the plunger tube 51. The chamber opens out axially, opposite the hearth 6, on the side of the internal volume V of the water pipe. In other words, the annular chamber 53 forms a sort of cavity or annular groove open on the lower side, on the side of the internal volume V of the pipe. The annular chamber 53 opens more precisely into the internal volume V, into the space left free between the plunger tube 51 and the annular receptacle 4. Its opening is therefore located between the annular lip 54 and the plunger tube 51. This chamber opens out through elsewhere laterally, outside Ext of the water pipe, via said suction opening 52, formed laterally on the cap 2, thus placing the internal volume (V) of the water pipe and the outside Ext of the water pipe in communication. In this case, the annular chamber 53 is connected to the suction opening 52 by a duct 21, which extends, through the cap 2, in a radial direction with respect to the axis of the water pipe. .

As a variant, the internal volume of the pipe could however be placed in communication with the outside, via the suction opening made laterally in the cap, by making a passage in the cap having a different geometry from the annular chamber presented below. above.

The water pipe 10 also comprises a purge duct 26, which connects the internal volume V of the water pipe to the outside Ext of the water pipe, and which opens out to the outside of the water pipe via a drain opening 23 separate from suction opening 52 ( figure 3 ).

• autoriser le passage d'air et de fumée à travers le conduit de purge 26 lorsqu'une pression dans le volume interne V de la pipe à eau est supérieure à une pression à l'extérieur Ext de la pipe à eau, et de manière à
• obturer le conduit de purge 26 lorsque la pression dans le volume interne V de la pipe à eau est inférieure à la pression à l'extérieur Ext de la pipe à eau.

The water pipe also includes a non-return valve 27 configured so as to:

• allow the passage of air and smoke through the purge duct 26 when a pressure in the internal volume V of the water pipe is greater than a pressure outside the Ext of the water pipe, and so as to
• close the purge pipe 26 when the pressure in the internal volume V of the water pipe is lower than the pressure outside Ext of the water pipe.

In the embodiment shown in the figures, the purge duct 26 and the non-return valve 27 are arranged in the cap 2.

The purge duct 26 and the valve 27 allow a user to easily purge the smoke contained in the internal volume V of the pipe. For this, the user blows into the suction pipe 8 (instead of sucking in), which has the effect of increasing the pressure inside this volume and therefore opening the valve 27, then to expel the smoke from the outside of the pipe.

When the user stops blowing in the suction pipe 8, the valve 27 closes, thus closing the purge duct 26. When the user then sucks in the suction pipe 8, the air enters the pipe. only by the hearth 6 (then by the dip tube), accompanied by tobacco smoke, in an operating mode which corresponds to the usual operating mode of a water pipe (as presented in the preamble).

Here, the purge opening 23 is formed laterally on the cap 2. The purge duct 26 connects the annular chamber 53 mentioned above to this purge opening. This duct here extends radially relative to the axis of the pipe.

• une bille 22,
• un siège 24, comprenant une surface d'appui conique, ouverte du côté inférieur pour déboucher dans la chambre annulaire 53, et
• un dégagement 25, situé à l'opposé du siège 24, et dans lequel la bille peut venir se loger, au moins en partie, pour dégageant ainsi le passage entre le siège et le conduit de purge 26.

The valve 27 is arranged between the purge duct 23 and the annular chamber 53. It comprises

• a ball 22,
• a seat 24, comprising a conical bearing surface, open from the lower side to open into the annular chamber 53, and
• a clearance 25, located opposite the seat 24, and in which the ball can be lodged, at least in part, to thus free the passage between the seat and the purge duct 26.

When the pressure in the internal volume of the pipe is lower than the pressure outside the water pipe, the ball comes to rest on the conical surface of the seat 24, thus closing off the purge duct 26. On the contrary, when the pressure in the internal volume of the pipe is greater than the pressure outside the water pipe, the ball is lifted from the seat, and comes to be lodged (at least in part) in the clearance 25, thus leaving the smoke coming out of the pipe through the purge opening 23.

In this arrangement, when the pressure in the pipe is the same as outside it, the valve 27 is closed because, under the effect of its weight, the ball 22 then rests on the seat 24. However, provision could be made to provide the valve with an optional spring, working in compression, resting on the one hand on the ball 22 and on the other hand on the bottom of the recess 25. This spring then presses the ball 22 against the ball. seat 24, as long as the pressure in the internal volume is not slightly higher than that outside the pipe. In this case, the valve allows the passage of air and smoke through the purge duct 26 not only on condition that the pressure in the internal volume is greater than the pressure outside the water pipe, but to condition moreover that the pressure in the internal volume exceeds, by a given quantity (which depends on the stiffness of the spring) the pressure outside the pipe.

In other embodiments, the purge duct could be arranged differently from what has been described above, and the non-return valve could be made in another way (for example by means of a cone instead of of a marble).

The removable cap 2, which is separate from the cover 7, has several functions. It serves as a receptacle for the ceramic hearth 6 which is housed therein in an airtight manner. The hearth 6 is the part which receives the smoking tobacco, in the form of molasses in the water pipe. Thanks to its purge duct 26 and to the non-return valve 27, the cap 2 also makes it possible to purge the smoke contained in the internal volume V of the pipe, when the latter is deemed too dense by the user. The cap 2 also makes it possible to diffuse the smoke towards the suction pipe 8, or, in other words, to bring the smoke to the opening of the suction pipe. Finally, it allows the cover 7 to be fitted onto the rest of the pipe. The cap 2, which is connected to many elements of the pipe between them, therefore plays a central role in its structure, and during the assembly and disassembly of the pipe (that is to say when it comes to switch from a transport configuration to a user configuration). As here, making this cap 2 in rubber or silicone allows easy assembly of these different elements, during assembly / disassembly of the pipe, while providing, at the same part, the various waterproof junctions necessary for its operation ( junction hearth - dip tube, closing of the internal volume, and junction with the suction pipe).

The suction pipe 8 is connected to the rest of the pipe by the suction opening 52, for example by being inserted therein. The flexible suction pipe 8 has for example a length of between 0.5 and 1.5 meters, and an external diameter of between 1 and 3 centimeters. It can for example be made of food grade silicone. A first end of the pipe 8 may be provided with a handle 11, hollow, placed in the mouth to draw in the smoke. To use the pipe, the handle 11 is forcibly engaged in a first neck 81 of the pipe, that is to say in a first end opening of the pipe. When the pipe is in the transport configuration, the handle is stored in the pipe. For this, the handle 11, which has an internal diameter slightly greater than the external diameter of the plunger tube 51, is engaged on the plunger tube (it is in a way threaded on the plunger tube). The second end of the pipe, 82, is provided here with a connector 12, for example in rigid plastic. The connector 12, which is hollow, is forced into the suction pipe 8 until a flange of the connector rests on the end of the pipe. Part of the connector 12, in the form of a tube, then comes out of the pipe. This tube-shaped part is engaged in the suction opening 52 to connect the pipe 8. This rigid connector 12 makes it possible to connect the pipe and the cap, which are all made of flexible material, in a convenient and hermetic manner. This connector 12, much shorter than the handle 11, can be left in place, on the pipe, when the pipe is wound on the reel 9 to be stored in the pipe.

The water pipe 10 further comprises a reel 9, of generally cylindrical shape (shown in more detail on the figures 6 to 11 ), around which the flexible pipe 8 can be wound.

In transport configuration, as in the case of the figure 1 for example, the suction pipe 8 is wound around the reel 9, and the reel 9 (provided with the hose) is housed in the annular housing L mentioned above.

In the use configuration, the suction pipe 8 is no longer wound on the reel 9. The reel 9 (which is then no longer fitted with the hose) can again be housed in the annular housing L ( which avoids losing it or making it dirty).

The reel 9, produced for example by molding a plastic material, comprises a cylindrical tube 91 provided on the outside with a rib 92 which surrounds the cylindrical tube 91 several times, forming a helix, so as to be able to guide the pipe. suction 8 flexible when winding the suction pipe 8 on the cylindrical tube 91. The pitch of the propeller in question is therefore close to the external diameter of the pipe 8.

The reel 9 is dimensioned so as to be able to be housed in the internal volume V of the water pipe, and even, more precisely, in the annular housing L of the annular receptacle 4, including when the suction pipe 8 is wound up. on the reel 9. The sum of the external diameter D9 of the cylindrical tube 91 of the reel and twice the external diameter of the suction pipe D8 is therefore less than the internal diameter of the main body 1 of the pipe. Here, this sum is more precisely less than the internal diameter D41 of the external cylindrical wall 41: D9 + 2.D8 <D41. And the internal diameter D9 'of the cylindrical tube 91 is greater than the external diameter D51 of the dip tube. Here, the internal diameter D9 'of the cylindrical tube 91 is more precisely greater than the external diameter D44 of the internal cylindrical wall 44 of the annular receptacle: D9'>D44> D51.

The reel 9 is provided, at a lower end 92 'of the helix formed by the rib 92 in question, with a first fixing member in which or on which the neck 81 of the suction pipe can be engaged in force. . This first fixing member is produced here in the form of a cylindrical stud 93 having a diameter slightly greater than the internal diameter of the suction pipe 8. The axis of the stud 93 is ortho-radial with respect to the axis of the suction pipe. 'winder (that is to say relative to the axis of the cylindrical tube 91). The stud 93 is positioned lower than the lower end 92 'of the propeller. It is supported by a platform which extends perpendicularly relative to the external surface of the tube 91. The stud 93 makes it possible to fix the first end 81 of the suction pipe 8, on the reel 9, before winding the pipe. .

The reel 9 is also provided, at an upper end 92 "of the helix formed by the rib 92, with a second fixing member in which or on which the suction pipe 8 can be engaged by force. finally to secure the pipe 8 and the reel 9, once the pipe has been wound up thereon. , once the pipe has been rolled up. The two platforms 94, 95 are parallel to each other and located opposite each other. Each platform rests in a way on a portion of the helical rib 92 extending this rib radially outwardly. The two platforms 94, 95 are separated by a distance equal to or slightly less than the external diameter D8 of the suction pipe 8. Each platform 94, 95 s' extends, from the outer cylindrical surface of tube 91, a distance which e st here greater than or equal to half of the external diameter D8 of the suction pipe 8, to effectively maintain the pipe 8 between the platforms (this distance, which corresponds to the width of the platform, is equal to the extension of the platform in a radial direction with respect to the axis of the tube 91). The width of the rib 92 (that is to say its extension in a radial direction relative to the axis of the tube 91) is markedly less than the width of one or the other of the platforms 94, 95: the rib serves as a guide for winding the pipe, but it is not this which makes it possible to secure the pipe 8 and the reel 9.

A clearance 96 is also made in the cylindrical tube 91 of the reel, between the two platforms 94, 95. This clearance 96 forms a sort of oblong hole which extends along a part of the helical path delimited by the rib 92 (path followed by the hose when it is wound on the reel). This hole extends, on the surface of the tube 91, over a length substantially equal (here equal) to that of the platforms 94, 95, a length equal here to approximately half a circumference of the tube. When the hose is wound onto the reel, part of the hose 8 (on the side of its second end 82) rests against the undercut 96 and protrudes slightly therein. This makes it possible to push the pipe slightly towards the inside of the tube 91, thus improving the retention by the platforms 94 and 95.

As already indicated, on the side of its second end 82, the pipe 8 can be fixed to the reel, between these two platforms, while remaining fitted with the connector 12.

The particular configuration of the second fixing member which has just been described makes it possible to fix the pipe 8 to the reel even if the pipe has a length which varies slightly. In fact, when the pipe is rolled up, it extends starting from stud 93, but it can stop, along the helical path mentioned above, at different levels, depending on its exact length (provided however that the second end finally ends between the two platforms 94 and 95, once the pipe has been rolled up). This configuration of the second fixing member, in which the second end 82 is pressed between the platforms once the hose has been wound up on the tube 91, further allows the second end of the hose to be fixed on the reel while maintaining a slight tension in the reel. the pipe to hold it securely, all the way, against the tube 91.

The assembly of the pipe, which makes it possible to switch from its transport (and storage) configuration to its use configuration, can be carried out as explained below.

First, the cover 7 is removed from the cap 2 and the cap is removed from the main body 1 of the pipe. Then, the reel 9 is taken out of the annular chamber L and the suction pipe 8 is unwound. The handle 11, initially engaged on the dip tube 51, is withdrawn therefrom, then it is fixed to the first end 81 of the pipe. The vase 3 is then filled with water (possibly unscrewing the vase for this, then screwing it back on). Then, the reel (without the pipe 8) is preferably replaced in the annular chamber L. The cap 2 is then replaced on the main body 1 of the pipe to close it. The second end 82 of pipe 8 is then connected to the suction opening 52, thanks to the connection 12. The tobacco preparation, then the glowing charcoal, are then placed in the hearth 6. Finally, the cover 7 is replaced on the cap 2.

Claims (11)

1. Portable water pipe (10) comprising:

   - a main body (1), with a bottom (30) and one or more sidewalls (31, 41) which together delimit the inner volume (V) of the water pipe, and, being opposite to the bottom (30), an opening (42),

   - a removable cap (2), engaged into said opening (42) so as to close the main body (1), the cap (2) being provided with a bowl (6) for tobacco combustion and with a dipping tube (51) which extends in the inner volume (V) of the water pipe, towards the bottom (30), the dipping tube communicating the bowl (6) and the inner volume (V) of the water pipe, and

   - a suction opening (52), to which a removable suction hose (8) can be connected, and which communicates the outside (Ext) of the water pipe and its inner volume (V),

   the water pipe (10) further comprising a winder (9) which includes a cylindrical tube (91) externally provided with a rib (92) which wraps around the cylindrical tube several times by forming a helix, so as to be suitable to guide the flexible suction hose (8) upon winding the suction hose (8) on the cylindrical tube (91), characterised in that the winder (9) is dimensioned so that it can be housed in the inner volume (V) of the water pipe, the winder (9) then surrounding the dipping tube (51).
2. Water pipe (10) according to claim 1, wherein the main body (1) comprises:

   - a vessel (3) for holding water, with a bottom, which forms the bottom (30) of the main body (1), and at least one sidewall (31) connected to the bottom (30) and which extends from the bottom (30) to an opening (32) of the vessel, and

   - an annular container (4) which comprises an outer annular wall (41) and an inner annular wall (44) connected to each other, at their lower end, by a return wall (43) so as to delimit between each other an annular housing (L) open at its upper end and suitable to accommodate the winder (9) inside the annular housing,

   the annular container (4) being fastened to the vessel on the side of said return wall (43), by forming a sealed junction with the vessel (3) all along the opening (32) of the vessel.
3. Water pipe (10) according to claim 2, wherein said suction opening (52) is made in the cap (2).
4. Water pipe (10) according to claim 3, wherein an annular chamber (53) is provided in the cap (2), around the dipping tube (51), wherein said chamber axially opens, opposite to the bowl (6), on the side of the inner volume (V) of the water pipe, and further opens into the outside (Ext) of the water pipe, laterally, through said suction opening (52) which is laterally provided on the cap (2).
5. Water pipe (10) according to claim 4, wherein the cap (2) is shaped so as to be suitable to be engaged into the upper opening of said annular housing (L) to close it hermetically.
6. Water pipe (10) according to any of claims 1 to 5, wherein the winder (9) is provided, at a lower end (92') of the helix formed by said rib (92), with a first fastening member (93) in which or on which a neck (81) of the suction hose (8) can be force engaged.
7. Water pipe (10) according to claim 6, wherein the first fastening member is a cylindrical stud (93), centred to an axis which is ortho-radial relative to an axis to which the cylindrical tube (91) of the winder (9) is centred.
8. Water pipe (10) according to any of claims 1 to 7, wherein the winder (9) is provided, at an upper end (92") of the helix formed by said rib (92), with a second fastening member (94, 95) in which or on which the suction hose (8) can be force engaged.
9. Water pipe (10) according to claim 8, wherein the second fastening member comprises a pair of plates (94, 95), parallel to each other and facing each other, each plate (94, 95) being an extension of a portion of the rib (92) extending outwardly, radially relative to the cylindrical tube (91) of the winder.
10. Water pipe (10) according to any of claims 1 to 9, further comprising:

    - a drain duct (26), which interconnects the inner volume (V) of the water pipe to the outside (Ext) of the water pipe, and which opens into the outside of the water pipe through a drain opening (23) distinct from the suction opening (52), and

    - a check valve (27) configured so as to:

    ∘ allow air and smoke passage through the drain duct (26) when a pressure in the inner volume (V) of the water pipe is greater than a pressure (Ext) outside of the water pipe, and so as to

    ∘ seal the drain duct (26) when the pressure in the inner volume (V) of the water pipe is lower than the pressure (Ext) outside of the water pipe.
11. Water pipe (10) according to the previous claim, wherein the drain duct (26) and the check valve (27) are arranged in the cap (2).

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