EP3420827B1 - Chimney hood for a water pipe head - Google Patents

Description

The present invention relates to a chimney hood for a hookah head and the use of such a chimney hood with a hookah head for use with a hookah. The present invention also relates to the use of adapters in an arrangement of chimney hoods for hookah heads.

STATE OF THE ART

Hookahs, in particular those of an oriental design, here and hereinafter also referred to as shisha, are essentially comparable in their function to a wash bottle for gases, since in them the tobacco smoke that arises from the tobacco's evaporation by means of a hot gas stream generated by coal the water contained in the hookah is cleaned and cooled.

There are a variety of hookah variants that differ in terms of design, size and material. The sizes of the shisha can vary. Water pipes with heights of 60 to 90 centimeters are common in shisha cafes. So-called mini-shishas with a height of up to 40 centimeters are also known.

A shisha comprises a water vessel open at the top and a column of smoke with a pipe, at the upper end of which there is a head for receiving the tobacco and the lower end of which is in the water vessel, in such a way that when the water pipe is operated, the end in the water in the water tank is immersed.

The column of smoke usually has a closure means in the lower area, which closes the opening of the water vessel more or less gas-tight, e.g. a plug or screw cap. Depending on the design of the smoke column, one or more hoses are attached in the area of the sealing device of the smoke column, which are connected to the gas space above the water level of the water vessel and through which the smoke is absorbed by the smoker during operation of the water pipe. The shishas can also have a pressure valve to blow out smoke.

The head on the top of the column of smoke is a small container with a recess into which the tobacco is filled. There is a

• Der Standardkopf ist meist aus Ton gefertigt. Üblicherweise weist er fünf kleinere Löcher im Kopfboden auf, durch welche die Melasse, die als Feuchthaltemittel im Wasserpfeifentabak verwendet wird, in die Rauchsäule laufen kann. Das macht eine Reinigung der Rauchsäule erforderlich.
• Der Einlochkopf weist nur ein Loch auf, das sich in einer hügelförmigen Erhebung im im Boden des Kopfes befindet, wobei die Erhebung nahezu so hoch sein kann wie der obere Rand des Kopfes. Der Tabak wird hier um das Loch herum ausgelegt. Die im Tabak befindliche Melasse kann nicht in die Rauchsäule fließen. Eine Variante des Einlochkopfes stellt der Vortex-Kopf dar, bei dem in der Seite der hügelartigen Erhebung mehrere Löcher angebracht sind.
• Der so genannte Power-Bowl-Kopf oder Super-Chief-Kopf basiert auf einer Kombination aus Standard- und Einlochkopf. Leicht erhoben, dennoch relativ bodennah befinden sich in der Kopfmitte mehrere Löcher, um welche bei Benutzung der Wasserpfeife der Tabak herum gelegt wird. Auch hier sind die Löcher so angeordnet, dass keine Melasse in die Rauchsäule abfließen kann.

Variety of heads, also known as hats. There are three main types of head:

• The standard head is mostly made of clay. It usually has five smaller holes in the top of the head through which the molasses, which is used as a humectant in water pipe tobacco, can run into the column of smoke. This makes it necessary to clean the column of smoke.
• The single-hole head has only one hole, which is located in a hill-shaped elevation in the bottom of the head, wherein the elevation can be almost as high as the upper edge of the head. The tobacco is placed around the hole here. The molasses in the tobacco cannot flow into the column of smoke. A variant of the single-hole head is the vortex head, in which several holes are made in the side of the hill-like elevation.
• The so-called power bowl head or super chief head is based on a combination of standard and single-hole heads. Slightly raised, but still relatively close to the ground, there are several holes in the middle of the head, around which the tobacco is placed when using the water pipe. Here, too, the holes are arranged so that no molasses can flow into the column of smoke.

When the hookah is in operation, the tobacco is heated by means of a glowing fuel, usually coal, arranged above the tobacco, as a result of which the tobacco aromas evaporate. In order to largely avoid burning the tobacco when smoking, the tobacco filled in the head is covered with a perforated aluminum foil or a fine metal sieve. The glowing coal is placed on it during the operation of the hookah. Due to the construction of the water pipe, the air flow generated when the smoke is inhaled flows along the coal, causing it to heat up and thus heat the tobacco in such a way that the smoke components gradually evaporate from it. The smoke generated in this way initially flows through the inner tube of the column of smoke, from which it is led into the water, where it cools and is cleaned, and then accumulates in the gas phase of the water vessel. There it can be removed by the smoker using the hoses. The way shishas work is known, for example, from Wikipedia, "https://de.wikipedia.org/wiki/shisha" and "https://en.wikipedia.org/wiki/hookah".

US 2011/0088706 A1 describes a hookah head system with a central tip and a hookah bowl system with a coal plate. The coal plate fits around the tip and can be held on the hookah bowl with several means. The tip supports the transport, attachment, use and removal of the hookah bowl.

WO 2014/032716 A1 describes a hookah head which comprises a capsule with smokable material.

In order to simplify the handling of the hookah, various so-called chimney hoods are offered, which are adapted to the clay heads and are usually offered together with these as so-called chimney heads. The chimney hood should achieve a more even evaporation of the water pipe tobacco. Chimney hoods are usually available for clay heads with a nominal diameter of 65 mm. The nominal diameter of the pipe bowls usually refer to the outer diameter of the upper rim of the clay bowls. Commercially available chimney hoods have the disadvantages that they are not easy to clean and have a lifespan of only about 20 to 30 smoke cycles. A smoking cycle usually lasts 1 to 1½ hours. Chimney heads for larger heads, for example with a nominal diameter of 90 mm, have so far not been commercially available.

Therefore, there is a need for inexpensive chimney hoods for different sizes of chimney heads. In addition, the chimney hood should improve the heat distribution and / or extend the smoking cycles and thus also optimize coal consumption. Simplified cleaning and / or a longer service life are also desirable. In addition, especially in the case of the cheaper chimney hoods, burning of the tobacco and the associated taste disadvantages cannot often be avoided efficiently.

ADVANTAGES OF THE INVENTION

Surprisingly, it has now been found that the disadvantages of the prior art can be avoided with a chimney hood with the features of claim 1. These chimney hoods include, inter alia, a perforated plate with a plurality of non-round holes, a sieve arrangement arranged above the perforated plate, a spacer and a chimney pipe which is guided from bottom to top through the perforated plate and the sieve arrangement.

With the chimney hood according to the invention, the chimney effect is optimally used for heat distribution. Because the air flow heated by the glowing coal due to the Special arrangement and design of perforated plate, sieve arrangement, spacer and chimney pipe does not flow directly along the tobacco, but is swirled between the sieve support and perforated plate, the tobacco is heated comparatively gently and burning of the tobacco is effectively prevented. The smoke becomes cooler and milder; it is perceived as less scratchy and more pleasant overall. This arrangement also results in a more even burning of the coal, so that fuel is saved and the carbon monoxide concentration in the smoke is reduced.

Coal that is still burning can be pushed onto the protruding screen rim of the chimney hood according to the invention to interrupt the smoking cycle. The coal then advantageously continues to burn evenly from below due to the air circulation and does not have to be ignited again if the smoking cycle continues. Likewise, if the smoke cycle is not continued or the smoking cycle is ended, the coal can continue to burn evenly and completely to ash. The design of the sieve rim allows the fuel to lie on the sieve without touching the webs, so that it burns completely to ash dust and can be disposed of in a simple and safe manner after cooling. In contrast, the fuel of the prior art is in smoking breaks or after the smoking cycle has ended on edges or plates through which no air can circulate. According to the prior art, complete combustion of the fuel to ash is generally not achieved; The disposal of such "lumps of coal" is more problematic than that of ash dust, also from a safety point of view.

Another advantage of the chimney hood according to the invention is that it can be adapted to almost all tobacco heads using an adapter. In addition, the chimney hood made of stainless steel can be easily and thoroughly cleaned in the dishwasher.

DESCRIPTION OF THE INVENTION

• eine Lochplatte mit einem konzentrisch in ihrer Mitte angeordneten Durchgang und einer Vielzahl nicht-runder Löcher,
• eine oberhalb der Lochplatte angeordnete Siebanordnung, umfassend
  • eine Siebauflage mit einem konzentrisch in ihrer Mitte angeordneten Durchgang, einem äußeren konzentrischen Steg sowie wenigstens zwei, z.B. 2, 3, 4, 6, 7 oder 8, vom äußeren konzentrischen Steg bis zum zentralen Durchgang reichenden radialen Stegen,
  • ein Sieb mit einem konzentrisch in seiner Mitte angeordneten Durchgang,
  • eine Siebhalterung mit einem konzentrisch in ihrer Mitte angeordneten Durchgang, einem äußeren konzentrischen Steg sowie wenigstens zwei vom äußeren konzentrischen Steg bis zum zentralen Durchgang reichenden radialen Stegen, und
• einen Abstandshalter, mit dem sich ein definierter Abstand des Siebes vom oberen Rand des Wasserpfeifenkopfes einstellen lässt,
• ein Kaminrohr, das von unten nach oben durch die Durchgänge in der Lochplatte, der Siebauflage, dem Sieb und der Siebhalterung geführt ist, umfasst. Dabei
• ist die Lochplatte im Abstandshalter oberhalb des oberen Randes des Wasserpfeifenkopfes und mit einem durch die Abmessungen des Abstandshalters gegebenen Abstand unterhalb des Siebes angeordnet,
• ist der äußere konzentrische Steg der Siebauflage mit dem äußeren konzentrischen Steg der Siebhalterung im Wesentlichen deckungsgleich und schließt mit dem äußeren Rand des Siebes ab,
• weist die Siebauflage einen mittleren konzentrischen Steg auf, der mit dem äußeren Rand der Lochplatte im Wesentlichen abschließt, und
• ist der Äquivalentdurchmesser der Siebanordnung um wenigstens 50 % größer als der der Lochplatte.

The present invention relates to a chimney hood for a hookah head, the

• a perforated plate with a passage concentrically arranged in the middle and a large number of non-round holes,
• comprising a sieve arrangement arranged above the perforated plate
  • a screen support with a passage arranged concentrically in the middle, an outer concentric web and at least two, eg 2, 3, 4, 6, 7 or 8, from the outer concentric web to the central passage extending radial webs,
  • a sieve with a passage concentrically arranged in its center,
  • a sieve holder with a passage arranged concentrically in its center, an outer concentric web and at least two radial webs extending from the outer concentric web to the central passage, and
• a spacer with which a defined distance of the sieve from the upper edge of the hookah head can be set,
• a chimney pipe, which is guided from bottom to top through the passages in the perforated plate, the sieve support, the sieve and the sieve holder. Here
• the perforated plate is arranged in the spacer above the upper edge of the hookah head and at a distance given by the dimensions of the spacer below the sieve,
• the outer concentric web of the sieve support is essentially congruent with the outer concentric web of the sieve holder and is flush with the outer edge of the sieve,
• the screen support has a central concentric web which essentially closes with the outer edge of the perforated plate, and
• the equivalent diameter of the sieve arrangement is at least 50% larger than that of the perforated plate.

In a preferred embodiment, the spacer essentially consists of a uniformly polygonal or circular ring. Its inside and / or outside is provided with one or more spacing devices. With the spacer device (s) a defined distance of the sieve from the upper edge of the hookah head is set. The spacing devices can be linear or point-shaped supports.

In addition, the spacer can be provided on its inside and / or outside with one or more holding or support devices for receiving the perforated plate. The holding or support devices can also be linear or point-shaped supports.

In particular, the spacer has two or more punctiform spacing devices on its inside.

In a preferred embodiment, the perforated plate has a uniform polygonal or circular cross section and the non-round holes are arranged along concentric lines.

In particular, the perforated plate has slot-shaped holes along at least two concentric lines, the ratio of length to width of which increases with increasing distance from the center of the perforated plate.

The width of a hole is understood here and below as the smallest dimension for the hole opening. It corresponds to the diameter of the round hole or the edge length of a square hole or the width of the elongated hole. The length of a hole is understood here and below as a larger light dimension of the hole opening.

The relative free area of the perforated plate is a measure of its passage; it is also known as a free cross-section or open screen area.

In a preferred embodiment of the chimney hood according to the invention, the perforated plate has a relative free area of at least 15%, preferably at least 20%, in particular at least 25% and not more than 90%, in particular not more than 80%, calculated as the total area of the holes in relation to the Total area of the perforated plate, on.

In a particularly preferred embodiment, the chimney hood according to the invention has an essentially circular cross section. The perforated plate, the spacer, the screen support, the screen, the screen holder and the chimney pipe each have an essentially circular cross section and are arranged coaxially.

In a likewise preferred embodiment of the chimney hood according to the invention, the at least two, in particular 2, 3 or 4 and especially exactly 2, radial webs of the screen support and the screen holder extending from the outer concentric web to the central passage are essentially congruent, and the screen support and the screen mount each additionally have at least two, in particular 2, 3 or 4 and especially exactly 2, radial, preferably substantially congruent, webs extending from the outer concentric web to the central concentric web.

The radial webs are preferably distributed uniformly over the circumference of the concentric rings. They are particularly preferably arranged symmetrically.

In the context of the present invention, “congruent” is to be understood to mean that two flat images can be converted into one another by means of a congruence image. Congruence maps are, for example, parallel displacements, rotations, reflections and links thereof. Congruent, flat polygons are characterized by the fact that corresponding track lengths and angle sizes match. Congruent circles are characterized by the same diameter. In the context of the present invention, “essentially congruent” is intended to mean that two flat images can be converted into one another by means of a congruence image with a percentage deviation of the characteristic variables of not more than 5%, preferably not more than 2%.

Individual or all components of the chimney hood according to the invention are preferably detachably connected to one another. A detachable connection is understood here and below to mean that the components connected in each case can be separated again in a non-destructive manner by reversing the connection process. The detachable connections are particularly preferably positive connections. Positive connections are created by the interlocking of at least two connection partners, i.e. the prevention of movement. As a result, the connected components cannot come loose without or with interrupted power transmission. Examples of suitable detachable positive connections are tongue and groove connections, feather keys, interlocking gears. Preferred positive connections are plugging or clamping (without tongue and groove or screwing).

According to a preferred embodiment, at least two of the components of the chimney hood according to the invention are non-releasably connected to one another. A non-releasable connection is understood here and below to mean that the components connected in each case can only be separated again by destruction. The non-detachable connections are particularly preferably integral connections. Examples of suitable material connections are soldering, welding, gluing. Preferred integral connections are soldering or welding.

In a preferred embodiment of the chimney hood according to the invention, the screen support, the screen and the screen holder are non-releasably connected to one another by means of point-like, cohesive connections.

In a likewise preferred embodiment of the chimney hood according to the invention, the screen arrangement consisting of screen support, screen and screen holder is surrounded by a ring. Sieve arrangement and ring together form a crown.

In a suitable embodiment, the spacer and the sieve arrangement consisting of the sieve support, sieve and sieve holder are not detachable, in particular by means of point-shaped material connections.

In a likewise suitable embodiment, the spacer and the crown, consisting of the sieve arrangement and the ring, are not detachable, in particular by means of point-shaped material connections.

As a rule, all parts or components of the chimney hood according to the invention, but at least the sieve arrangement, the spacer and the chimney pipe, are made from a heat-resistant material. Heat-resistant materials are primarily metals, in particular ferrous alloys and especially steel, but also heat-resistant plastics and unbreakable ceramic materials. Preferably, at least some of the components of the chimney hood according to the invention, in particular at least the chimney pipe, the perforated plate, the spacer, optionally the ring, the screen support and the screen holder, are made of a thermally conductive material, in particular an iron-containing metal alloy, especially made of steel. Specifically, all parts or components of the chimney hood according to the invention are made of steel. The steel used is particularly preferably stainless steel, such as, for example, 1.4300 (X12CrNi18-8), 1.4301 (X5CrNi18-10), 1.4305 (X8CrNiS18-9), 1.4401 (X5CrNiMo17-12-2), V1A, V3A, V5A .

In a preferred embodiment of the chimney hood according to the invention, the webs of the screen support and the screen holder each have a width of at most 10%, preferably at most 7%, in particular at most 5% of the equivalent diameter of the screen arrangement. The webs are advantageously made as narrow as possible in order to achieve maximum use of the screen area. Stability and manufacturing requirements must be taken into account.

• Außendurchmesser der Lochplatte: im Bereich von 85 mm bis 95 mm, bevorzugt im Bereich von 80 mm bis 90 mm;
• Lochweite der nicht-runden Löcher: im Bereich von 0,5 mm bis 5 mm, bevorzugt im Bereich von 1 mm bis 3 mm, insbesondere im Bereich von 1,5 mm bis 2,5 mm;
• Außendurchmesser der Siebanordnung bzw. der Siebauflage, des Siebes und der Siebhalterung: im Bereich von 130 mm bis 180 mm, bevorzugt im Bereich von 135 mm bis 165 mm, insbesondere im Bereich von 140 mm bis 150 mm;
• Außendurchmesser des mittleren konzentrischen Steges: im Bereich von 85 mm bis 95 mm, bevorzugt im Bereich von 80 mm bis 90 mm;
• Innendurchmesser des Abstandshalters: im Bereich von 85 mm bis 95 mm, bevorzugt im Bereich von 80 mm bis 90 mm;
• Höhe des Abstandshalterringes: im Bereich von 5 mm bis 40 mm, bevorzugt im Bereich von 5 mm bis 30 mm, insbesondere im Bereich von 7 mm bis 20 mm; ;
• Durchmesser des Durchganges durch die Siebanordnung und die Lochplatte: im Bereich von 5 mm bis 20 mm, bevorzugt im Bereich von 5 mm bis 15 mm, insbesondere im Bereich von 8 mm bis 12 mm;
• Nenndurchmesser des Kaminrohres: im Bereich von 5 mm bis 20 mm, bevorzugt im Bereich von 5 mm bis 15 mm, insbesondere im Bereich von 8 mm bis 12 mm, wobei der Nenndurchmesser in der Regel dem Außendurchmesser eines Metallrohres entspricht;
• Höhe des Kaminrohres: im Bereich von 50 mm bis 300 mm, bevorzugt im Bereich von 70 mm bis 200 mm, insbesondere im Bereich von 80 mm bis 150 mm;
• Stegbreiten der mittleren konzentrischen Stege und der radialen Stege: im Bereich von 1 mm bis 15 mm, bevorzugt im Bereich von 2 mm bis 10 mm, insbesondere im Bereich von 2 mm bis 5 mm;
• Stegbreite der äußeren konzentrischen Stege: im Bereich von 1 mm bis 15 mm, bevorzugt im Bereich von 2 mm bis 10 mm, insbesondere im Bereich von 3 mm bis 7 mm;
• Maschenweite des Siebes: im Bereich von 0,1 mm bis 5 mm, bevorzugt im Bereich von 1 mm bis 2,5 mm, insbesondere im Bereich von 1,6 mm bis 2,0 mm;
• Stärke des Siebmaterials: im Bereich von 0,05 mm bis 1 mm, bevorzugt im Bereich von 0,1 mm bis 0,5 mm, insbesondere im Bereich von 0,15 mm bis 0,35 mm;
• mittlere Breite des Siebrandes: im Bereich von 15 mm bis 45 mm, bevorzugt im Bereich von 20 mm bis 40 mm, insbesondere im Bereich von 25 mm bis 35 mm.

A chimney hood for standard chimney heads with a nominal diameter of 90 mm has the following dimensions, for example:

• Outer diameter of the perforated plate: in the range from 85 mm to 95 mm, preferably in the range from 80 mm to 90 mm;
• Hole size of the non-round holes: in the range from 0.5 mm to 5 mm, preferably in the range from 1 mm to 3 mm, in particular in the range from 1.5 mm to 2.5 mm;
• Outside diameter of the screen arrangement or screen support, the screen and the screen holder: in the range from 130 mm to 180 mm, preferably in the range from 135 mm to 165 mm, in particular in the range from 140 mm to 150 mm;
• Outer diameter of the central concentric web: in the range from 85 mm to 95 mm, preferably in the range from 80 mm to 90 mm;
• Inner diameter of the spacer: in the range from 85 mm to 95 mm, preferably in the range from 80 mm to 90 mm;
• Height of the spacer ring: in the range from 5 mm to 40 mm, preferably in the range from 5 mm to 30 mm, in particular in the range from 7 mm to 20 mm; ;
• Diameter of the passage through the sieve arrangement and the perforated plate: in the range from 5 mm to 20 mm, preferably in the range from 5 mm to 15 mm, in particular in the range from 8 mm to 12 mm;
• Nominal diameter of the chimney pipe: in the range from 5 mm to 20 mm, preferably in the range from 5 mm to 15 mm, in particular in the range from 8 mm to 12 mm, the nominal diameter generally corresponding to the outer diameter of a metal pipe;
• Height of the chimney pipe: in the range from 50 mm to 300 mm, preferably in the range from 70 mm to 200 mm, in particular in the range from 80 mm to 150 mm;
• Web widths of the central concentric webs and the radial webs: in the range from 1 mm to 15 mm, preferably in the range from 2 mm to 10 mm, in particular in the range from 2 mm to 5 mm;
• Web width of the outer concentric webs: in the range from 1 mm to 15 mm, preferably in the range from 2 mm to 10 mm, in particular in the range from 3 mm to 7 mm;
• Mesh size of the sieve: in the range from 0.1 mm to 5 mm, preferably in the range from 1 mm to 2.5 mm, in particular in the range from 1.6 mm to 2.0 mm;
• Thickness of the screen material: in the range from 0.05 mm to 1 mm, preferably in the range from 0.1 mm to 0.5 mm, in particular in the range from 0.15 mm to 0.35 mm;
• average width of the sieve rim: in the range from 15 mm to 45 mm, preferably in the range from 20 mm to 40 mm, in particular in the range from 25 mm to 35 mm.

The present invention is also directed to the use of the chimney hood according to the invention with a water pipe head for use with a water pipe.

The chimney hood according to the invention can be used with an adapter in a hookah arrangement with a hookah head. The adapter comprises an adapter ring and an adapter plate with a recess arranged thereon, preferably mounted thereon. The inner edge of the adapter ring corresponds to the outer edge of the water pipe head and the outer edge of the adapter plate corresponds to the inner edge of the spacer.

In a preferred embodiment, the inner edge of the adapter ring surrounds the outer edge of the water pipe head to be used, the outer edge of the adapter plate is enclosed by the inner edge of the spacer and the recess of the plate is with the free upper opening of the water pipe head with a deviation of 10%, preferably 7%, in particular 5%, based on the total area of the free upper opening of the hookah head, congruent.

The adapter allows, for example, standard chimney heads with a nominal diameter of 65 mm to be used with a chimney hood for heads with a nominal diameter of 90 mm. For this purpose, the inner diameter of the adapter ring is, for example, in the range from 60 mm to 80 mm, in particular in the range from 65 mm to 75 mm. The outer diameter of the adapter plate is, for example, in the range from 80 mm to 100 mm, in particular in the range from 85 mm to 95 mm. The diameter of the recess in the adapter plate is, for example, in the range from 45 mm to 65 mm, in particular in the range from 50 mm to 60 mm. The height of the adapter ring is, for example, in the range from 5 mm to 25 mm, in particular in the range from 10 mm to 20 mm.

With the adapter, other chimney heads with very different nominal diameters can also be used with a chimney hood. Examples of other chimney heads are sliced fruits, such as grapefruit, oranges, lemons, melons, but also coconuts and the like. In particular, the inside diameter and the height of the adapter ring as well as the diameter of the recess in the adapter plate must be adapted accordingly to the dimensions of the chimney head used in each case.

The outer diameter of the adapter plate is largely determined by the dimensions of the chimney hood used.

In a preferred embodiment, the adapter ring and the adapter plate are not detachable, in particular by means of point-shaped, cohesive connections.

The adapter is preferably made of steel. The steel used is particularly preferably stainless steel, such as, for example, 1.4300 (X12CrNi18-8), 1.4301 (X5CrNi18-10), 1.4305 (X8CrNiS18-9), 1.4401 (X5CrNiMo17-12-2), V1A, V3A, V5A .

The present invention also relates to a hookah arrangement with a hookah head and a chimney hood according to the invention.

In a suitable embodiment, the hookah arrangement comprises an adapter as described here.

The present invention furthermore relates to a kit for a chimney hood according to the invention, which comprises a perforated plate, a spacer, a sieve arrangement consisting of a sieve support, sieve and sieve holder, and a chimney pipe, optionally an adapter, and assembly instructions.

• Siebanordnung bestehend aus Siebauflage, Sieb und Siebhalterung;
• Krone bestehend aus Ring, Siebauflage, Sieb und Siebhalterung;
• Krone bestehend aus Ring, Siebauflage, Sieb und Siebhalterung, und Abstandshalter;
• Kaminrohr und Lochplatte;
• Lochplatte und Abstandshalter;
• Kaminrohr, Lochplatte und Abstandshalter;
• Siebanordnung und Kaminrohr,

ausgewählt sind, bereits vormontiert.In a preferred embodiment of the kit according to the invention are parts or components that under

• Sieve arrangement consisting of sieve support, sieve and sieve holder;
• Crown consisting of ring, sieve support, sieve and sieve holder;
• Crown consisting of ring, sieve support, sieve and sieve holder, and spacer;
• Chimney pipe and perforated plate;
• Perforated plate and spacers;
• Chimney pipe, perforated plate and spacers;
• Sieve arrangement and chimney pipe,

are already pre-assembled.

Preassembled in the context of the present invention means that the corresponding parts or components are already connected to one another. They can be releasably or non-releasably connected. In particular, they are not pre-assembled releasably.

FIGURE DESCRIPTION

• Figur 1 zeigt eine Shisha mit einer erfindungsgemäßen Kaminhaube.
• Figur 2 zeigt einen Kopf mit einer erfindungsgemäßen Kaminhaube.
• Figur 3 zeigt eine erfindungsgemäße Lochplatte.
• Figur 4 zeigt eine erfindungsgemäße Siebhalterung.
• Figur 5 zeigt eine erfindungsgemäße Siebauflage.
• Figur 6 zeigt eine erfindungsgemäße Siebanordnung.
• Figur 7 zeigt einen Kopf mit einem erfindungsgemäßen Adapter.
• Figur 8 zeigt einen Kopf mit einem erfindungsgemäßen Adapter und einer erfindungsgemäßen Kaminhaube.

In the following the invention is based on the Figures 1 to 8 illustrated without restricting them to the illustrated embodiments.

• Figure 1 shows a hookah with a chimney hood according to the invention.
• Figure 2 shows a head with a chimney hood according to the invention.
• Figure 3 shows a perforated plate according to the invention.
• Figure 4 shows a sieve holder according to the invention.
• Figure 5 shows a screen pad according to the invention.
• Figure 6 shows a sieve arrangement according to the invention.
• Figure 7 shows a head with an adapter according to the invention.
• Figure 8 shows a head with an adapter according to the invention and a chimney hood according to the invention.

The following reference symbols are used in the figures

1

Shisha

2nd

Chimney hood

3rd

Chimney pipe

4th

Crown

5

Spacers

6

head

7

Sieve arrangement

8th

Sieve

8a

Sieve burn

9

Perforated plate

10th

Sieve holder

11

Sieve

12th

Screen support

13

Continuity

14

middle bridge

15

outer web

16

radial web

16a

radial edge web

17th

Plate

18th

Column of smoke

19th

bowl

20

Mouthpiece

21

Hose connection

22

tube

23

non-round holes

24th

adapter

25th

Adapter plate

26

Adapter ring

In Figure 1 a conventional shisha 1 with a chimney hood 2 according to the invention is shown. The shisha 1 has a bowl 19 with a smoke column 18 placed thereon. The column of smoke 18 extends far into the bowl 19. For smoking, the bowl 19 is filled with water to such an extent that the lower opening of the column of smoke 18 is in any case under water. Above the top of the column of smoke 18 on the bowl 19 there are several hose connections 21. A hose 22 with a mouthpiece 20 is connected to one of the hose connections 21. A head 6 is placed on the upper end of the column of smoke 18. The head 6 can be, for example, a commercially available clay or ceramic head which is filled with tobacco for smoking. A plate 17 is located slightly below the head 6 and can be used to store coal or small devices, such as (coal) tongs. A chimney hood 2 is arranged on the head 6. A spacer 5 ensures a defined distance between the upper edge of the head 6 and the crown 4. One or more pieces of fuel, for example 2 to 4 coal cubes, are placed on the crown 4 for smoking. A chimney pipe 3 protrudes through the crown 4 and beyond.

Figure 2 shows a commercially available 90 mm head 6 with a chimney hood 2 according to the invention from a bird's eye view. The head 6 and the chimney hood 2 according to the invention placed thereon have a round cross section. A round perforated plate 9 with slot-shaped holes lies directly on the upper edge of the head 6. A crown 4 rests on a spacer 5. The spacer 5 ensures a defined distance between the upper edge of the head 6 and the crown 4. The crown 4 consists of a round sieve arrangement, which is also surrounded by a round ring. The ring essentially serves optical purposes. For example, as shown in Figures 1, 2 and 8, it can bear a lettering or a logo.

The upper opening of the head 6 or the perforated plate 9 are completely covered by a screen surface which extends from the passage 13 to the central concentric web 14. The middle concentric web 14 and the outer concentric web 15 in turn enclose a sieve rim 8a. The width of the sieve rim 8a suitably corresponds approximately to the width of a coal cube. Two radial webs 16 extend from the outer concentric web 15 to the central passage 13. Two radial edge webs 16a extend from the outer concentric web 15 to the central concentric web 14. The two radial webs 16 and the two radial edge webs 16a are each arranged at a 180 ° angle and divide the sieve edge into a 90 ° division in four areas.

The chimney pipe 3 protrudes from the upper edge of the head 6 through the central passages 13 in the perforated plate 9 and the crown 4 upwards.

To smoke a like Figure 1 built hookah, the bowl 19 are filled with water and the head 5 with tobacco. The chimney hood 2 according to the invention is placed on the head 5. To start the smoking cycle, one or more pieces of ignited fuel, for example 1 to 5, preferably 2 to 4, coal cubes are placed on the inner sieve surface 8 of the sieve arrangement 7. By pulling the mouthpiece 20, air is drawn through the tobacco in the head 6. The spacer ensures an optimal temperature and supports the uniform heat distribution in the area of the inner screen surface. The smoke generated during the combustion passes through the column of smoke 18 into the bowl 19. There, the smoke is filtered by the water and cooled. The smoke then reaches the smoker (s) through the hose (s) 22 connected to the connection 21 and via the mouthpiece (s) 20.

If the smoking cycle is to be interrupted for a while, the fuel is pushed from the inner sieve surface 8 onto the sieve rim 8a. The fuel material advantageously does not rest on the webs 16, 16a, in particular on the webs 14, 15, 16, 16a. In this way, the fuel is supplied with oxygen evenly and does not have to be ignited again if the smoking cycle continues. At the end of the smoking cycle, the fuel is deposited on the sieve rim 8a in the same way. If the fuel lies completely on the sieve without touching the webs, it can burn completely to ash dust and can be disposed of in a simple and safe manner after cooling.

Figure 3 shows a preferred embodiment of the perforated plate 9 according to the invention in plan view. The round perforated plate 9 has in its center a round passage 14 for the chimney pipe - not shown here. The non-round holes 23 are arranged along concentric lines. The holes 23 are slit-shaped and curved along the concentric lines. The ratio of length to width of the holes 23 increases with increasing distance from the center of the perforated plate 9 or from the central passage 14. Figure 4 shows a preferred embodiment of the screen support 12 according to the invention in plan view. It has a passage 13 arranged concentrically in its center, a central concentric web 14 and an outer concentric web 15.

Two radial webs 16 extend from the outer concentric web 15 to the central passage 13. Two radial edge webs 16a extend from the outer concentric web 15 to the central concentric web 14. The two radial webs 16 and the two radial edge webs 16a are each in one 180 ° angle and divide the screen edge in a 90 ° division into four sections. The outer diameter of the outer concentric web 15 is at least 50% larger than the outer diameter of the inner concentric web 14.

Figure 5 shows a preferred embodiment of the screen holder 10 according to the invention in plan view. It has a passage 13 arranged concentrically in its center and an outer concentric web 15. Two radial webs 16 extend from the outer concentric web 15 to the central passage 13. Two further radial edge webs 16a extend from the outer concentric web 15 to the central concentric web of FIG Figure 4 shown screen support 12.

Figure 6 shows a preferred embodiment of the sieve arrangement 7 according to the invention in top view. It consists of the in Figure 4 shown screen support 12 and in Figure 5 shown screen holder 10, between which a screen 8 is located. The sieve arrangement 7 has a passage 13 arranged concentrically in its center, a central concentric web 14 and an outer concentric web 15. Two radial webs 16 extend from the outer concentric web 15 to the central passage 13. Two radial edge webs 16a extend from the outer concentric web 15 to the central concentric web 14. The outer diameter of the outer concentric web 15 is at least 50% larger than the outer diameter of the central concentric web 14. A sieve rim 8a is formed between the outer 15 and the central 14 concentric web.

Figure 7 shows a commercially available 65 mm head 6 with a preferred embodiment of the adapter 24 according to the invention. The head 6 and the adapter 24 placed thereon have a round cross section. The adapter 24 consists of an adapter plate 25 which is attached to an adapter ring 26. The adapter ring 26 surrounds the upper part of the head 6. The adapter plate 25 has a recess in its center, which leaves the upper opening of the head 6 free. The adapter plate 25 is laterally so far over the edge of the head that it can accommodate the chimney hood according to the invention. The outer diameter of the adapter plate 25 becomes this usually somewhat, for example in the range of 1 mm to 3 mm, larger than the outside diameter of the perforated disk (not shown here).

Figure 8 shows a commercially available 65 mm head 6 with a like in Figure 7 shown adapter 24 and a chimney hood 2 according to the invention in side view. The adapter is placed on the head 6 as described above. The chimney hood is in turn placed on this. Head 6, adapter 24 and chimney hood 2 each have a round cross section. The crown 4 is located above the spacer 5. The spacer 5 ensures a defined distance between the upper edge of the adapter 24 and the crown 4. The chimney pipe 3 projects upwards through the crown 4 and beyond.

Claims (13)

1. Chimney hood (2) for a water pipe head (6), comprising:

   - a perforated plate (9) having a passage (13) concentrically arranged in its centre and a plurality of non-round holes (23),

   - a sieve arrangement (7) arranged above the perforated plate (9), comprising

   ∘ a sieve support (12) having a passage (13) arranged concentrically in its centre, an outer concentric web (15) and at least two radial webs (16) extending from the outer concentric web (15) to the central passage (13),

   ∘ a sieve (8) having a passage (13) concentrically arranged in its centre,

   ∘ a sieve mount (10) having a passage (13) concentrically arranged in its centre, an outer concentric web (15) and at least two radial webs (16) extending from the outer concentric web (15) to the central passage (13),

   - a spacer (5) with which a defined distance of the sieve (8) from the upper edge of the water pipe head (6) can be adjusted, and

   - a chimney pipe (3), which is guided from the bottom to the top through the passages (13) in the perforated plate (9), the sieve support (12), the sieve (8) and the sieve mount (10),

   wherein
   the perforated plate (9) is arranged in the spacer (5) above the upper edge of the water pipe head (6) and at a distance below the sieve (8) given by the dimensions of the spacer (5),
   the outer concentric web (15) of the sieve support (12) is substantially congruent with the outer concentric web (15) of the sieve mount (10) and ends with the outer edge of the sieve (8),
   the sieve support (12) has a central concentric web (14), which substantially ends with the outer edge of the perforated plate (9), and
   the equivalent diameter of the sieve arrangement (7) is at least 50% larger than that of the perforated plate (9).
2. Chimney hood (2) according to claim 1, in which the perforated plate (9) has a uniform polygonal or circular cross-section and has slit-shaped holes (23) along at least two concentric lines, whose length-to-width ratio increases with increasing distance from the centre of the perforated plate (9).
3. Chimney hood (2) according to one of the preceding claims, in which the perforated plate (9) has a relative free area of at least 15%, preferably at least 20%, in particular at least 25% and not more than 90%, calculated as the total area of the holes (23) relative to the total area of the perforated plate (9).
4. Chimney hood (2) according to one of the preceding claims, having a substantially circular cross-section, in which the perforated plate (9), the spacer (5), the sieve support (12), the sieve (8), the sieve mount (10) and the chimney pipe (10) each have a substantially circular cross-section and are arranged coaxially.
5. Chimney hood (2) according to one of the preceding claims, in which the at least two radial webs (16), extending from the outer concentric web (15) to the central passage (13), of the sieve support (12) and the sieve mount (10) are substantially congruent, and the sieve support (12) and the sieve mount (10) additionally each have at least two radial, preferably substantially congruent, webs (16a) extending from the outer concentric web (15) to the central concentric web (14).
6. Chimney hood (2) according to one of the preceding claims,
   wherein individual or all components are detachable and are preferably connected to one another by means of a positive connection; and/or
   wherein at least two of the components are non-detachable and are preferably connected to one another by means of a bonded connection; and/or
   wherein the sieve support (12), the sieve (8) and the sieve mount (10) are non-detachably connected to one another by means of punctiform bonded connections; and/or
   wherein the sieve arrangement (7), consisting of sieve support (12), sieve (8) and sieve mount (10), is surrounded by a ring, and the sieve arrangement (7) and the ring together form a crown (4).
7. Chimney hood (2) according to one of the preceding claims, in which the components chimney pipe (3), perforated plate (9), spacer (5), ring if necessary, sieve support (12) and sieve mount (10) are made of steel.
8. Chimney hood (2) according to one of the preceding claims, in which the webs of the sieve support (12) and the sieve mount (10) each have a width of maximum 10%, preferably maximum 7%, in particular maximum 5% of the equivalent diameter of the sieve arrangement (7).
9. Use of the chimney hood (2) according to one of the preceding claims, having a water pipe head (6) for use with a water pipe.
10. Water pipe arrangement having a water pipe head (6) and a chimney hood (2) according to one of claims 1 to 8, optionally having an adapter (24).
11. Water pipe arrangement according to claim 10 having an adapter (24), wherein the adapter (24) comprises an adapter ring (26) and an adapter plate (25) arranged above it, preferably mounted on it, having a recess, wherein the inner edge of the adapter ring (26) corresponds to the outer edge of the water pipe head (6), and the outer edge of the adapter plate (25) corresponds to the inner edge of the spacer (5).
12. Water pipe arrangement according to claim 10, wherein the inner edge of the adapter ring (26) surrounds the outer edge of the water pipe head (6) to be used, the outer edge of the adapter plate (25) is surrounded by the inner edge of the spacer (5) and the recess of the plate (25) is congruent with the free upper opening of the water pipe head (6) with a deviation of 10%, preferably 7%, in particular 5%, relative to the total area of the free upper opening of the water pipe head (6).
13. Construction set for a chimney hood (2) comprising a perforated plate (9), a spacer (5), a sieve arrangement (7) consisting of a sieve support (12), sieve (8) and sieve mount (10), and a chimney pipe (3) as defined in one of claims 1 to 8, optionally an adapter (24), and assembly instructions.

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