CN105658544A

CN105658544A - Capsule, system and method for beverage preparation

Info

Publication number: CN105658544A
Application number: CN201380078470.3A
Authority: CN
Inventors: L·道格莱尼马杰
Original assignee: Tuttoespresso SpA
Current assignee: Tuttoespresso SpA
Priority date: 2013-05-30
Filing date: 2013-05-30
Publication date: 2016-06-08
Also published as: RU2645651C2; KR20160038880A; RU2015155824A; JP2016525910A; WO2014191044A1; EP3003912A1; BR112015030012A2; AU2013391092A1

Abstract

To prepare a beverage, such as coffee,from a capsule having a piercing area (6) and at least one reinforced area (7, 7') different and distinct from the piercing area, and a brewing device comprising piercing means (40) and water injection means,the following steps are carried out: piercing said at least one piercing area (6) of the water inlet wall (3) by piercing means (40) of the brewing device to provide one or more water inlet apertures (6a) in said capsule inlet wall (3);deforming at least part of said at least one piercing area (6) of the water inlet wall (3) under the pressure exerted on said inlet wall (3) by the water injected by water injection means of said brewing device during the beverage preparation, whereby the piercing area (6) around said apertures (6a) is moved inwardly inside said hollow body (5) to free at least in part said apertures (6a) from said piercing means (40) and preferably at least part of the imparted deformation is retained by the piercing area (6) at the end of said brewing cycle.

Description

Capsule prepared by beverage, system and method

The present invention relates to capsule, system and method prepared by beverage.

More in detail, the present invention relates to a kind of one or more products from being contained in disposable capsule by brewing apparatus, hot pressurized water is injected the capsule capsule of preparing the beverage of such as coffee to extract the product being contained in wherein. The present invention also relates to a kind of beverage preparation system comprising the capsule according to the present invention and brewing devices, brewed liquid is injected capsule and is provided with the instrument of piercing through by this brewing devices, and this pierces through the passage that instrument is intended to bore a hole to provide at least one brewed liquid to inject to capsule. The present invention also relates to a kind of drink preparation method.

Background of invention

Hold such as solvable, dehydration, concentrated or fresh ground or chopping food beverage preparation capsule and become very general in the past few years, but they from the first half century in XX century just it is known that.

These capsules are made up of soft, material that is semi-rigid or rigidity usually, such as paper, plastic laminate, aluminium, injection of plastic or common injection of plastic. Recently, adopt the capsule of heat injection or altogether injection of plastic material to represent because of it to prepare the cleaning of beverage and utility and obtained universal and widely use.

Some capsule, the capsule that such as WO2010076048 discloses, known two opposite wall with the longitudinal axis orthogonal relative to capsule, one is so-called water inlet wall, in this water inlet wall, the diluent (normally water) preparing beverage during use is injected by suitable water inlet instrument, and a wall comprises flange, as discharging wall, it is as the outlet of the beverage prepared. The sidewall with roughly conical butt connects two opposite wall and to form storing food and finally prepares the closed cavities room of finished beverage, and finished beverage can pass through different methods, such as, by dipping, brewed or dissolve dehydrating food and obtain.

Well known by persons skilled in the art, water inlet wall and sidewall can by the injectivity radius and combine continuously together with discharging wall, they also can design and be assembled into and capsule is sealed completely. In this case, they can be made up of the barrier material of the height of such as aluminium or EVOH not oxygen-permeable, sometimes uses with other combination of materials and utilizes different technologies to obtain desired shape to allow. Or, they can be made up of slight oxygen-permeable material, allows gas and other small molecule-depend on about the relative pressure-of outside atmosphere and room, chamber or to penetrate or leave room, chamber and realize the limited barrier action stoping the food spoilage of accommodation in capsule.

In slightly different embodiments, may be used for the capsule of the allocation units compatible with described prior art and can have the hole on the surface of any one or two in water inlet wall and discharging wall, this makes the room, chamber defined by two opposite wall and sidewall in fact be " semi-open type " room, chamber. Room, semi-open type chamber preferably requires capsule to wrap in additionally, " the 2nd " is oxidized or goes bad to guarantee that the food wherein held does not become because contacting with the agent thing of such as air, moisture or directly contact and become only contaminated with pollution with environment in packing. In these capsules, the existence in the hole in any one or two in water inlet wall or discharging wall is thought required feature by some known technology, because which providing consistent control and/or its undesired irregular behavior stoping capsule of free access, this irregular behavior may occur in water inlet instrument or discharging instrument or both opening procedures.

About discharging wall, in described known technology, this is defined by peripheral flange, and this flange usually but is not necessarily made up of the identical material of sidewall with water inlet wall. Material suitably is selected to provide the required mechanical property relevant with temperature with the operating pressure for the preparation of finished product, and flange is usually designed to has sealing tool to provide water-stop in beverage preparation.

The present invention does not pay close attention to described discharging wall and the sealing tool that is associated thereof, but useful point out, technology available at present may advise using peelable rigid cap, or pre-punching paper tinsel or peelable paper tinsel or have a suitable injection disk in pre-arranged hole and those skilled in the art facilitate the material of available several other technology-such as dissolving when contact-for allowing fluid flow discharging instrument with diluent. In other words, in order to provide the discharging instrument of finished beverage, those skilled in the art can select between can consider to be used for the capsule described in the application one big series solution.

In order to the application's object, it may be said that, preferred application area uses the discharging wall of complete water-lute, and this discharging wall is by using product preparation process hydraulic pressure used or by tearing the weakened wall of rigidity element or use other method well known by persons skilled in the art to open.

For the device that uses together with the capsule object of the application by belong to for a person skilled in the art can type, such as such as WO2009115474. Specifically, its water-lute fluid being designed to provide guiding between the hydraulic efficiency system and the room, chamber of capsule of fluid (normally water) is connected to allow to prepare beverage. The sealing tool of capsule coordinates with the coupling sealing tool in allocation units. Operating pressure will be in normal range, between 1 to 20 bar.

Such as, in order to allow water to enter room, chamber by water inlet wall, in known machine, it may also be useful to pierce through instrument (mark 28 of the Fig. 2 in WO2009115474). This kind pierces through instrument and can such as use hot other technology injected of Metal-Piercing or such as polymkeric substance to manufacture. Usually, these instruments are designed to have tilting plane and sharp point to provide the blade shapes of the abundant interaction with capsule.

In fact therefore these character interacted that may not necessarily tear effect are different from relative to being selected to guarantee the technology that the technology that the fluid between the room, chamber of capsule and the water loop of distribution device is connected is disposed.

EP2476633 such as discloses the capsule being made up of thermal forming laminate board and water inlet wall, and wherein blade is used for piercing through into Shui Bi. This is well-known interaction, such as, also instruct in WO2009115474.

But, the applicant finds-due to the capsule in EP2476633 by thermoforming laminated plastic material make-its may not produce by aluminium glue win needed for consistent fluid connection result and the behavior of capsule is unpredictable, cause very changeable beverage quality and even according to the possibility not having beverage to pay. In fact, the severe crush of capsule may occur in fluid connect bad time.

EP2452893 discloses another interface between the instrument of piercing through and water inlet wall, thus blade (" piercing through instrument ") directly contacts really with capsule water inlet wall, and capsule water inlet wall has the hot injection of plastic material of pre-punching to make by suitably equipment in this example. In this application, although, it is applied to be not used in into the pressure on water wall by blade and tears into Shui Bi, and it is said that the free access improved is to diluent for widening described pre-puncture prosopyle to provide.

GB2489409 teaches a kind of capsule, and wherein, blade can be coordinated water inlet wall and be coordinated by this kind, though not have to produce as those be convenient to as described in the water inlet instrument of the diluent of pre-punched hole on wall, it is possible to assist to be equipped with the elastically deformable part of capsule be out of shape.

Prior embodiment passes through or needs pre-punching in water inlet wall, and this allows again oxygen that the food of chamber chambers contain is gone bad fast, especially when coffee powder is cured in use, or advises using aluminium to provide the inappropriate interface between the instrument of piercing through and capsule. When wall of intaking wherein passes through the plastic capsule of blade punctures, applicants have discovered, blade provides water permeation to the obstacle of indoor, chamber, because they occupy the district of the plastic material being torn and do the correct preparation that they hinder in room, chamber the food held like this.

Another problem of known capsules is the problem opening the container of brewing apparatus and capsule sealing to avoid water to leak into outside machine during brew cycle. With the sealing of the capsule being made up of unitary plastic material because of brew water uses in the cycle high pressure but difficulty.

It is thus desirable to the capsule of a kind of improvement, first it can provide reliable, the consistent hydraulic connecting between the water supply instrument of allocation units and capsule chamber room, so that the finished product of modification quality paid by capsule.

, in addition it is also necessary to the capsule sealed completely, wherein, secondly water inlet instrument generation after capsule being inserted in allocation units (brewing devices) prepared by beverage. This guarantees that maximum fragrance retains, simultaneously-and relative to secondary package-which obviate Environmental costs and the inconvenience relevant to described packaging.

3rd, it is necessary to a kind of capsule, wherein, measurable behavior its open with product preparation cycle during in be necessary, to avoid unstable condition and therefore to allow finished beverage to have reliable constant-quality.

It is an object of the invention to solve or alleviate the problems referred to above at least partly.

It is a further object of the present invention to provide a kind of capsule, it bears applicable in the advanced person's altogether surface shape of injection technique and structure, so as to stop oxygenant or make the barrier of the material of the food spoilage held in room, chamber be based upon in its body with provide the long-acting quality of accommodation food.

In addition, what the object of the capsule object of the improvement of the present invention was to provide expanded range pierces through the water inlet instrument of pattern to be provided in complete seal capsule, with maximumization in the flexibility for the preparation of the operating aspect in the design of the distribution device of finished product and during the production process of capsule itself.

Finally, the system that the object of the application is also to provide a kind of capsule by improving and allocation units form, it improves in room, chamber extracting or dissolving and the quality of therefore finished product of the food that holds.

Invention general introduction

These and other object is realized by the capsule of the present invention, and this capsule is the capsule preparing beverage from dose product as claimed in claim 1. Further object of the present invention is the system and method that respectively prepared by beverage such as claim 18 and 24. Preferred embodiment is the target of dependent claims.

Capsule according to the present invention comprises formation infusion product and is contained in the sidewall of hollow enclosed body wherein, intake wall and discharging wall. Water inlet wall comprises at least one pierceable region, and the one or more prosopyles being provided on described capsule water inlet wall are pierced through to be fed in capsule by pressurized water in brew cycle at least one pierceable region by the instrument that pierces through of brewing devices. In use, the instrument that suitably pierces through that at least one pierceable region of water inlet wall is suitable for inserting on beverage maker (that is, brewing devices) wherein by being arranged on capsule pierces through.

In addition, wall of intaking comprises at least one and strengthens district, and at least one pierceable region of wall of intaking is opened with reinforcement differentiation, and namely it is arranged in outside at least one reinforcement district described. Term " outside " herein for represent pierceable region be not at least one strengthen district a part. At least one pierceable region size be arranged in such a way into and manufacture make its can beverage prepare during at least corresponding to the hole viscous deformation being made up of the blade of brewing apparatus. Piercing through some distortion that step causes pierceable region usually, pierced through described in brewing devices at least one pierceable region after instrument pierces through, the extra distortion caused by the effect of pressurized water occurs.

Wording " viscous deformation " or " viscous deformation " for representing that capsule stands the distortion of at least one pierceable region at least partly during beverage preparation herein, are thus given distortion at least partly and are kept by pierceable region at the end of described brew cycle.

In other words, if compared with capsule shape during its insertion brewing devices, then capsule shape has been out of shape, and this distortion is kept by capsule at the end of described brew cycle at least partly.

Advantageously, at least one strengthen district and be arranged on the water inlet wall except the described reinforcement district except intaking wall the existence of at least one pierceable region allow to obtain the region of water inlet wall standing different distortion during beverage preparation.

In fact, the other parts of the comparable water inlet wall at least one pierceable region of water inlet wall, and specifically more flexible and be more easily out of shape relative to having the reinforcement district improving rigidity.

By doing like this, in use, the pierceable region of water inlet wall effectively can be pierced through by the instrument that pierces through of beverage brewing devices, and this pierces through instrument and water inlet wall, and at least one pierceable region of wall of specifically intaking with capsule contacts.

In addition, after pierceable region is pierced through by the instrument that pierces through of brewing devices, the pierceable region comprising at least one hole being made up of blade is advantageously because being moved in the hollow body of capsule viscous deformation at least partly. By doing like this, hole is positioned at least part of water inlet wall wherein can relative to piercing through blade moving, it does not have the region in the hole of blade can increase and the flow that injects the water of capsule hollow body can also increase to realize the product dosage that capsule holds floods completely and effectively.

According to an aspect of the present invention, in fact, be present in at least one hole in the pierceable region of water wall after pierceable region is out of shape can no longer with brewing devices pierce through tool in contact. One or more pierce through instrument if provided, then at least one in them may not contact completely with the capsule pierceable region after its viscous deformation. Therefore, the current injecting capsule can increase and increase because of the space being arranged between at least one corresponding aperture piercing through instrument and the capsule pierceable region after its distortion. In other words, after capsule water inlet wall has been out of shape, the instrument that pierces through of brewing devices does not hinder or limits the water stream channel entering the one or more holes being positioned at least one pierceable region.

According to an aspect of the present invention, at least partly at least one pierceable region because of pierce through described in brewing devices instrument capsule intake the penetration depth in wall at least 50%, preferably until the motion of 150% and viscous deformation. By doing like this, it is possible to realize water inlet wall and pierce through in instrument at least one between water passage increase. Wording " penetration depth " pierces through the relative displacement of instrument from the initial contact pierced through between instrument and capsule outside surface (that is, the outside surface of wall of intaking) herein for expression. In other words, the length of penetration depth corresponding to by pierce through instrument from distance to the final position covering that it arrives at the end of piercing through step of the position of the initial contact of the outside surface of capsule.

According to an aspect of the present invention, at least one pierceable region is being applied under the pressure on described water inlet wall at least partly viscous deformation by the water injecting capsule. As known in the art, water or other infused liquid are provided by the implantation tool of brewing devices. Preferably, hydraulic pressure is included in the scope of 2 bar 6 bar, most preferably 2 to 4 clings to, that is, capsule water-in can be low to moderate the deform under pressure of 26 bar, preferably 24 bar. In addition, the viscous deformation of at least one pierceable region occur in the hollow body of capsule the pressure increased and the beverage prepared from discharging wall first between discharging. In fact, during beverage preparation, pierced through by brewing devices in capsule pierceable region after instrument pierces through, the hollow body that water injects capsule by the one or more hole obtained on pierceable region with the pressure that increases in capsule with realize wherein effective dipping of accommodation product.

The viscous deformation of the water inlet wall of capsule allows at least two the independent pressure increase stages realizing being injected water. Increasing first of pressure is pierced through by the instrument that pierces through of brewing devices and realization after water injection capsule at least one pierceable region of capsule. Pressure increase, until at least part of distortion of at least one pierceable region, therefore allows the water stream channel increased in capsule. Second time pressure increase is by by distortion water inlet wall, water is injected capsule until the impregnated realization of product that is contained in capsule hollow body, and the pressure in capsule causes capsule discharging wall to be opened.

According to an aspect of the present invention, at least one line of delimitation is limited between at least one reinforcement district and at least one pierceable region of water wall. In other words, the region (at least part of pierceable region) in the region (strengthening district at least partly) of undeformed capsule water inlet wall with the capsule water inlet wall of distortion is separated by least one line of delimitation substantially.

Can be arranged on the different positions on capsule water inlet wall according to Bu Tong possibility embodiment it must be noted that district is strengthened with at least one at least one pierceable region.

According to an aspect of the present invention, at least one pierceable region and at least one reinforcement district are arranged in into Shui Bishang along alternating pattern (or path). Preferably, at least one reinforcement district described and at least one edge, pierceable region described are from the sidewall of capsule, and the radial direction that specifically its perimeter edge extends to capsule hollow body replaces.

In an example, at least one strengthens district and at least one pierceable region all annularly paths arrangement. But, according to different possibility embodiment, reinforcement district and/or pierceable region can be arranged on circular path, and namely region is corresponding to the circular surface of capsule water inlet wall.

According to preferred embodiment, at least one circumference that capsule comprises on the capsule water inlet wall portion being substantially arranged in adjacent sidewall strengthens district. According to different possibility embodiment, capsule comprises the reinforcement district, center being substantially arranged in on the top of water wall.

At least one circumference strengthen district and at least one reinforcement district, center can or together with or be arranged on separately capsule and intake on wall. In fact, according to exemplary embodiment, capsule water inlet wall can be provided with the pierceable region that circumference is strengthened district and extended to outside the described reinforcement district corresponding essentially to capsule water inlet wall top. Otherwise, according to possibility embodiment, capsule water inlet wall can be provided with reinforcement district, center, and at least one pierceable region can be arranged on the water inlet wall portion between reinforcement district, described center and sidewall.

In a preferred embodiment, at least one circumference strengthen district and at least one reinforcement district, center can together be arranged on capsule and intake on wall, pierceable region extends in-between. According to the preferred embodiment, at least one pierceable region is continuous or discontinuous extension along the general toroidal district strengthening the water inlet wall between districts at described two.

Advantageously, this kind of configuration allows the effective perforation realizing pierceable region and effective viscous deformation of at least part of pierceable region. The different behaviors of hydraulic pressure will cause distortion to preferably occur in pierceable region by different zones, at least in perforation place.

According to an aspect of the present invention, at least one is strengthened district and comprises reinforcement instrument, and/or it comprises thickness at least part of having and increasing relative to the thickness of at least one pierceable region described in water inlet wall. Finally, strengthen district to use with the reinforcement tool combinations being intended to limit at least one such as rib strengthening district relative to the increase thickness of pierceable region.

Under any circumstance, the existence strengthening the existence of instrument and/or increase thickness that at least one strengthens the water inlet wall in district allows the rigidity improving and being arranged in the region compared with at least one pierceable region of the water inlet wall outside at least one pierceable region described. Therefore, at least one pierceable region can be out of shape during beverage preparation; Distortion is at least part of viscous deformation can seen in capsule after capsule uses in brew cycle. Finally distortion is different from by only piercing through the distortion that step causes.

According to possibility embodiment, limit at least one reinforcement instrument strengthening district and also extend on the described sidewall of capsule at least in part.

The described reinforcement instrument at least one the reinforcement district being intended to limit water inlet wall may embodiment can manufacture in different forms according to different. According to an aspect of the present invention, in fact, reinforcement instrument comprises from water inlet wall surface (the water inlet internal surface of wall or outside surface, or from two wall surfaces of intaking) outstanding one or more ridge or rib. The reinforcement instrument of the form in rib can circumferentially and/or radially be arranged on described water inlet wall.

Term " rib " herein for the narrow ridge that represents on the wall being arranged in capsule or similar projections. In addition, term " radially " and " circumferentially " are respectively used to represent that one or more rib extends along general radial direction relative to the center axis of capsule, and the center axis circumferentially line extension relative to capsule.

According to possibility embodiment, limit at least one recess that at least one reinforcement instrument strengthening district comprises or is completely contained in water wall or not only extends on described sidewall but also on described water inlet wall.

It is to be understood that recess comprises at least one surface to provide a kind of " ripple " with continuity in the water inlet wall of capsule. In the design, recess can regard " removal " of the part volume of the capsule in water inlet wall/sidewall as; Therefore, intake wall surface be modified and to be again elevated to initial level and shape below " sinking " to its initial level.

In preferred illustrative embodiment, the quantity of recess or depression is selected from prime number, it is preferable that its quantity is selected from 5,7,11 or 13. This is proved to be favourable, especially the quantity of the blade in brewing devices or punctured element be 3 or odd number system in.

Further details about such capsule can find in common co-pending application PCT/IB2012/002408. In an embodiment, the recess of capsule comprises at least one surface, and this at least one surface is positioned in plane or comprises relative to the described center axis of capsule or at least one axis keeping constant inclination angle (��) relative to axis vertical with centerline axis parallel. In addition, at least one surface or axis extend between the proximal end and distal end of recess relative to the described center axis of capsule. Must be pointed out, preferably, the obliquity at least one surface of recess is by pointing to the center axis of capsule or be parallel to the vertical axis of the center axis of capsule and/or the corresponding tilt degree with the center axis of capsule or the plane or axis (straight line) that are parallel to the vertical axes intersect of the center axis of capsule is measured. It means that at least one position, it is preferable that on multiple position, the part disappearance of water inlet wall, and over these locations, at least one surface that wall is defined " recess ", i.e. " countersink " of capsule body substitutes; Wording " depression " uses with reference to the horizontal plane of the wall in the rest part of capsule body.

According to preferred embodiment, it is the bottom surface of recess relative at least one surface of the recess that the center axis of capsule or vertical axis keep constant inclination angle.

In other words, each recess comprises preferably " inclination ", is namely formed slopely at least one surface of additional surface, it is preferable that relative to the recess bottom surface that vertical axis (that is, the center axis of capsule or axis in parallel) tilts with constant inclination degree.

Surface or axis tilt relative to the center axis of capsule or relative to axis vertical with described centerline axis parallel, preferably with vertical direction, namely sharp angle �� is formed relative to the direction with the center axis A parallel of capsule, or the central shaft line of (same surface or axis) and capsule forms sharp angle ��. Preferably, angle �� as above be included in the scope of 10 ��-75 ��, preferably 25 ��-60 ��, most preferably about 35 ��-50 ��.

Further aspect according to the present invention, at least integral piece made by sidewall and water inlet wall, and preferably they are manufactured from the same material, it is preferable that make with plastic material. Various processes may be used for realizing the simple and economic scale operation of capsule. According to possible embodiment, at least water inlet wall and sidewall can be made up of injection of plastic material or common injection of plastic material.

The experimental test completed by applicant shows, it may also be useful to the plastic material with thermal property and the mechanical characteristics reported below allows the effective perforation realizing not only at least one pierceable region of capsule water inlet wall but also the viscous deformation of at least part of pierceable region caused during beverage preparation by hydraulic pressure.

Suitable plastic material is provided with to be included in 850 1050kg/m³Scope in, preferably 0.951kg/m³Density (measuring according to ISO1872), be included in the scope of 9 13g/10min, preferably 11g/10min melting flow (MFR according to ISO1133 measures), be included in the scope of 23 29MPa, PP and PE, the preferably HDPE of the preferably tensile stress (measuring according to 527-2/1B) of 26MPa. Preferred material shows all above-mentioned preferred values.

Suitable material has at 3.1 to 3.9kJ/m²Scope in, preferably 3.5kJ/m²Charpy notched Izod impact strength (at 23 DEG C) (according to ISO179 measure). Preferred material shows all above-mentioned preferred values and the shock strength (Charpy) quoted.

In addition, Vicat softening temperature is preferably included in the scope of 50 80, it is preferable that 55 75 and more preferably 60 70 (measuring according to ISO306 (B50 method)). When measuring with standard A STMD1525B50, Vicat softening temperature is preferably included in the scope of 50 60, it is preferable that 54-58, and more preferably 56. Fusing point (second-heating) is preferably included in the scope of 115 145 DEG C, it is preferable that 131 DEG C (measuring according to ASTMD2117). Suitable material has in the scope being included in 55-66, it is preferable that the Shore D hardness (ASTMD2240) of 60.

The suitable plastic material of capsule manufacture is as business-like by INEOSHD5211EA is sold plastic material.

The present invention also relates to a kind of system preparing beverage, this system comprises capsule and the brewing appratus of the above-mentioned type, what this brewing appratus comprised at least one pierceable region described of piercing through (perforation) capsule water inlet wall pierces through instrument, and by pressurized water being injected the injection device in described capsule hollow body by the described instrument one or more prosopyles obtained that intake in wall at capsule of piercing through. Advantageously, at least one pierceable region of water inlet wall viscous deformation at least partly during prepared by beverage.

According to an aspect of the present invention, tool in contact may not be pierced through with at least one in distortion pierceable region at least partly, is not therefore obstructed by the hole piercing through instrument offer so that the current in capsule hollow body can increase.

Disclose the additional aspect of beverage preparation system in the dependent claims. The brewing devices that the present invention also relates to a kind of capsule from the above-mentioned type such as claim 24 and comprises the instrument of piercing through and water injection tool is to prepare the method for beverage.

The method comprises the following steps:

The one or more prosopyles of at least one pierceable region at least partly described into water wall to be provided in described capsule water inlet wall are pierced through with the instrument that pierces through of brewing devices;

Make at least one pierceable region at least partly described into water wall during prepared by beverage, it be applied to viscous deformation under the pressure on water wall by the water injected by the water injection tool of described brewing devices,

Thus given distortion at least partly to be kept by pierceable region at the end of described brew cycle.

Dependent claims 25-31 discloses the additional aspect of the method according to the present invention.

On the other hand, the present invention relates to a kind of method preparing beverage from the capsule according to above-described embodiment and the brewing devices that comprises the instrument of piercing through and water injection tool, method comprises and pierces through at least one pierceable region described in water wall the step of one or more prosopyles to be provided in described capsule water inlet wall with the instrument that pierces through of brewing devices, and comprise at least one pierceable region at least partly described made into water wall at the deform under pressure being applied to by pressure element on described water inlet wall, thus pierceable region around described hole be moved in described hollow body so that described hole do not have at least partly described in pierce through the step of instrument. preferably, given distortion at least partly to be kept by pierceable region at the end of described brew cycle. in this aspect of the invention, pressure preferably such as by can along with blade or other pierce through instrument or mechanically apply relative to the pressure member of blade moving, to compress a part for water inlet wall, such as center reinforcement district or the region near blade, and to move inward at least part of pierceable region and to realize the required degree of freedom that instrument is pierced through in hole and blade or other.

The capsule being suitable for the method is the capsule corresponding to the above-mentioned capsule being out of shape for water, wherein, at least one pierceable region at least partly described of water inlet wall can at the deform under pressure being applied to by pressure element on described water inlet wall, thus pierceable region around described hole be moved in described hollow body so that described hole do not have at least partly described in pierce through instrument. Therefore further object of the present invention is, a kind of brewing apparatus and a kind of system comprising brewing apparatus, described machine comprises the container holding capsule and piercing through instrument, described machine also comprises and is suitable for contacting with wall of intaking at least partly so that pressure element of its distortion, thus pierceable region around described hole be moved in described hollow body so that described hole do not have at least partly described in pierce through instrument.

Advantageously, as has already been mentioned above, the viscous deformation comprising at least part of capsule pierceable region in the hole made with the instrument of piercing through allows to increase the water stream channel in capsule. In fact, after water inlet wall is out of shape, the instrument that pierces through of brewing devices is no longer the obstacle in the one or more water holes realized on water inlet wall because of its perforation.

The usefulness that this causes brew cycle shorter and brewed improves, as visible by test extracted amount. In addition, relative to having the conventional capsules opening the advantage caused by the container of system and capsule sealing, it may also be useful to can reduce according to the pressure of the brewed step of the capsule of the present invention.

In fact, the infusion pressure of reduction also allows to use need not bear the current more simple seal device for the high pressure values in brewing devices, and the water not causing injection leaks into outside the container holding capsule. Special surprisingly, the above results is by different from the aluminium that tradition uses and provide the material realization of some best result so far in brew cycle.

Brief description

The further advantage of the present invention and feature will from below completely by non-limiting example, the description that provides with reference to accompanying drawing more it is evident that in accompanying drawing:

Fig. 1 is the skeleton view comprising the possible embodiment with at least one capsule according to the present invention strengthening district in the depression extended of not only intaking on wall but also sidewall;

Fig. 2 is the radial cross-section from the viewed in plan by the center axis of the capsule of Fig. 1;

Fig. 3 is from the inside that the following shows the capsule hollow body according to Fig. 1 and 2;

Fig. 4 is the skeleton view comprising another embodiment with at least one capsule according to the present invention strengthening district in the depression extended of not only intaking on wall but also sidewall;

Fig. 5 and 5a shows two possibility embodiments of the capsule according to the present invention;

Fig. 6 is the skeleton view comprising and having another possibility embodiment being included in a capsule according to the present invention strengthening district into the depression in water wall;

Fig. 7 is the radial cross-section from the viewed in plan by the center axis of the capsule according to Fig. 6;

Fig. 8 is from the inside that the following shows the capsule hollow body according to Fig. 6 and 7;

Fig. 9 is the skeleton view comprising and having another possibility embodiment being included at least one capsule according to the present invention strengthening district into the depression in water wall;

Figure 10 shows another possibility embodiment of the capsule according to the present invention;

Figure 11 and 11a shows two possibility embodiments of the capsule according to the present invention having in the reinforcement instrument being completely contained in the form into the recess in water wall;

Figure 12 A and 12B shows part sectioned view and the upward view on the top of another possibility embodiment of the capsule according to the present invention of the reinforcement instrument of the form having in rib;

Figure 12 and 13 shows to be had in recess and another of the capsule according to the present invention of reinforcement instrument of the form of rib may embodiment;

Figure 14 and 15 shows the partial cut-away perspective view of the capsule according to the present invention with at least part of pierceable region being in state of plastic deformation;

Figure 16-20 shows the result of the brewed test of contrast completed by applicant.

The description of better embodiment

Fig. 1-15 shows the capsule 1 of the exemplary embodiment according to the present invention, capsule 1 is for extracting or solubilized or can prepare beverage by diluted product, such as coffee, tea, hot drink and cold drink or other liquid foodstuff any from the predetermined amount of be contained in capsule or liquid or solid. Preferably, product dosage comprises the particulate state brewed by brewed liquid, preferably pressurized hot water or chopping powder-product, and such as coffee powder or tealeaves, brewed liquid injects capsule, for obtaining required beverage.

Capsule according to the present invention is intended to the beverage maker (that is, brewing appratus) of closure elements or the container (not shown) holding at least part of capsule during beverage preparation for being provided with. Brewing devices is also provided with the instrument of piercing through 40, such as one or more blade or the like for piercing through capsule, it is preferable that corresponding to the water inlet wall (water inlet wall) of capsule brewed liquid, preferably pressurized hot water to be fed in capsule. Although being described with reference to water, but it must be noted that the capsule according to the present invention can use together with dissimilar brewed liquid. In the accompanying drawings, brewing devices some pierces through instrument and schematically shows in Fig. 1,10,14 and 15. Pressurization brew water in known manner, such as, injects capsule by comprising the implantation tool of the brewing devices of water pump such as not shown in figures.

The capsule 1 combinationally used with brewing devices forms system prepared by the beverage according to the present invention, as will be disclosed more in detail after a while.

In use, the closure elements of brewing devices moves relative to capsule 1, and/or vice versa, be sealed and matched (at flange place) with capsule 1 can be realized, and piercing through instrument 40 and capsule, specifically pierceable region with the water inlet wall 3 of capsule contacts, for its perforation. Brewing devices and operating method thereof are well known in the art, and are equipped with, with the capsule association according to the present invention, the step realizing claimed beverage preparation system and implement claimed drink preparation method.

Capsule 1 according to the present invention comprises sidewall 2, water inlet wall 3 and lower wall 4, and described each wall limits product dosage and is positioned at hollow body 5 wherein. Water inlet wall 3 is the water inlet surface of capsule and is intended to the instrument that pierces through 40 by brewing devices and bores a hole to obtain the prosopyle 6a (shown in Figure 14 and 15) allowing brewed liquid to enter capsule. Lower wall 4 allows brewed good beverage to leave from capsule and enters container, and the element that the discharging instrument of capsule, the beverage that namely allows to make leave can manufacture in a different manner.

Lower wall 4, i.e. discharging wall or the wall comprising the discharging that beverage leaves capsule from it can be that the bottom being connected to capsule body 5 is with the individual component of closed capsule.

Lower wall 4 any suitable the constraint tool with capsule body 5 can be used, and in other possibility embodiment, lower wall 4 can make integral piece with capsule sidewall.

Lower wall can be made with the material different relative to capsule material, and such as, lower wall 4 can be preferred nonporous film, such as aluminium foil or laminating foil, it is preferable that comprises the laminating foil of aluminium, as shown in the sectional view of Fig. 2 and 7. Other suitable material adopts the paper strainer being provided with hole of thermoplastic material or class rigid material or semi-rigid material, non-textile fabric or cap, as known in other capsule making beverage.

According to known alternate embodiment, the self-perforating element that discharging instrument can be included in mechanical force and/or the ruptures at pressures acting on capsule or the one or more holes made by the instrument that pierces through of brewing devices. Or, drawing mechanism can comprise open channels. These technology facilitate available for a person skilled in the art.

The self-perforating element being suitable for lower wall 4 is given prominence to from the lower surface of lower wall 4, and by having the ditch reducing thickness or line limits, this ditch or line can the mechanical force applied by brewing devices and/or by the effect of the power of the water applying being fed in capsule under break. Such self-perforating element describes in detail in application WO2007/063411, in order to understand in detail with reference to this application.

Can providing the discharging instrument of other type, namely beverage can such as realize by being bored a hole by capsule with the instrument that suitably pierces through of brewing devices from the extraction of capsule; In another embodiment, discharging instrument is water-soluble film.

As shown in the figure, capsule 1 has roughly cup-shape or frusto-conical, there is center axis A (vertical axis), in other words, in exemplary embodiment shown in the figure, sidewall 2 Bu Yu center axis A parallel, and hollow body 5 at one end by lower wall 4 the sidewall end opposite relative to lower wall 4 by intaking wall 3 close.

Sidewall 2 comprises circumference end 2c, and water inlet wall 2 extends from circumference Duan2cXiang center axis A. In embodiment shown in the figure, the circumference end 2c round wire 2c of the sidewall 2 that water inlet wall 3 extends from it indicates. In addition, even if not illustrating in the drawings, but sidewall 2 can be provided with different thickness along its extension between water inlet wall 3 and lower wall 4. In embodiment shown in the figure, sidewall 2 is divided into bottom 2a and top 2b by line 5 (see Fig. 2 and 7) substantially; The bottom 2a of sidewall 2 is provided with the bigger thickness of the thickness of the top 2b relative to sidewall 2. Such as visible in example shown embodiment, the thickness of water inlet wall 3 is the same with the thickness of the top 2b of sidewall.

Even if in the embodiment of Figure 12 A and 12B, the top of sidewall 2 has the thickness different relative to water inlet wall 3, but capsule can be provided with the top of water inlet wall and the sidewall with identical thickness, as in other embodiment shown in the figure.

According to possibility embodiment, the thickness of the thickness of sidewall 2 and water inlet wall 3 is included in the scope of 1.6mm 0.15mm, and preferably in the orientation of 1.2mm 0.2mm. In a preferred embodiment, the thickness t1 of water inlet wall 3 is 0.2-0.5mm. The thickness t2 of the lower wall 2a of sidewall 2 is included in the scope of 0.55 0.7mm.

It must be noted that in embodiment shown in the figure, the bottom 2a of lower wall 2 is provided with constant thickness t2. But, according to different possibility embodiment, the part 2d of the lower wall of the flange shape Rim portion of next-door neighbour's capsule can be provided with the thickness increased relative to the bottom 2a of sidewall 2. And, in this embodiment, the bottom 2a of sidewall 2 is provided with the bigger thickness of the thickness of the top 2b relative to sidewall 2. As seen from Fig., the part 2a and 2b of sidewall can have the different obliquitys of vertical (that is, the longitudinally) axis relative to capsule.

According to an aspect of the present invention, as shown in the figure, the thickness of water inlet wall 3 is constant, that is, except rib, at least one pierceable region 6 and at least one reinforcement district 7,7 ' have same thickness. But, according to may embodiment, the reinforcement district 7 of water inlet wall, 7 ' can be provided with relative to except at least one thickness increased at least partially strengthening the water inlet wall 3 except district 7 described.

In the embodiment shown in Fig. 1-5, the water inlet wall 3 of capsule from central shaft line A (corresponding to water inlet wall top) extend to the sidewall 2 of capsule so that capsule top by intaking wall 3 close.

, as shown in the figure, in addition wall 3 of intaking extends until the circumference end 2c of sidewall 2 from axis axis A.

Must be pointed out, water inlet wall 3 can be smooth and/or convex at least partly and/or taper, in other words, water inlet wall 3 can be shaped in a different manner, so that not only the capsule insertion container of brewing devices but also wall 3 of intaking are bored a hole by the instrument that pierces through of brewing devices.

In the embodiment shown in Fig. 1-5, the water inlet wall 3 of capsule extends to the circumference end 2c of sidewall 2. The obliquity of the water inlet wall 3 at the circumference end 2c place of sidewall 2 may embodiment can change according to different, and preferably, form (in capsule) and it is equal to or greater than 90 �� at water inlet wall 3 and the angle beta (see Fig. 2) between the sidewall 2 at circumference end 2 place. In the embodiment shown in figure, capsule is provided with roughly convex water inlet wall 3, and the angle �� being formed between sidewall 2 and water inlet wall 3 is greater than 90 �� to provide further rigidity to structure; The preferable range that angle is 90 �� is 100 �� to 130 ��. In the further possibility embodiment shown in Fig. 6-11, the water inlet wall 3 of capsule is general dome shape; The water inlet wall 3 of this kind of shape can according to different possibility embodiment by curved surface or by being in tilted layout to provide two or more planes of general dome shape to realize each other.

In other words, in the sectional view from the capsule by the radial planar interception of the center axis of capsule, water inlet wall is formed by the curve with circular or ellipse or the two or more pieces straight line that tilts each other. In example below, straight line can such as be arranged to the tangent line being round wire or oval line.

It must be noted that according to another possibility embodiment, water inlet wall can be formed by the plane being in tilted layout relative to center axis, namely to form the conical surface. , it is necessary to point out, in addition intaking wall can being combined to form by curved surface and plane.

In the embodiment shown in Fig. 6-10, capsule comprises the dome shape water inlet wall with general planar top 3a formed by circular surface. In other words, as shown in sectional view the best of the Fig. 7 from the radial planar interception by the center axis A of capsule, except the top of general planar, water inlet wall 3 is formed by the curve with circular or ellipse.

In the embodiment shown in fig. 10, the water inlet wall 3 of general dome shape is realized by plane 3a, 3b, 3c, 3d, the 3e tilted each other. As shown in the cross section of fig. 1, in fact, tilting plane 3a, 3b, 3c, 3d, 3e of water inlet wall 3 are corresponding to the straight line tilted each other. It must be noted that plane/straight line can be arranged to be that the tangent line of round wire or oval line is to form general dome shape surface.

The further example of dome shape capsule is shown in Figure 11,11A, 12A and 12B.

Capsule 1 according to the present invention is comprised at least one into water wall 3 and strengthens district 7,7 ' and at least one pierceable region 6 being intended to be bored a hole by the instrument that pierces through of brewing devices, and at least one pierceable region 6 is arranged at least one outside, reinforcement district 7,7 ' described.

Strengthen realizing by rib and/or relative to thickness or the differing materials of pierceable region increase.

At least one pierceable region 6 is than the other parts of water inlet wall 3, and specifically intakes relative to capsule that to strengthen district 7,7 ' more flexible and be more easily out of shape at least one of wall 3.

Therefore, hole 6a effectively is bored a hole to provide by the instrument that pierces through 40 of brewing devices at least one pierceable region 6 first, and it is out of shape subsequently during beverage preparation.

According to preferred embodiment, comprise at least one pierceable region 6 at least part of deform inward to capsule hollow body 5 of hole 6a to increase the passage that brew water passing hole 6a enters capsule. In fact, at least one pierceable region 6 described pierceable region 6 by brewing devices pierce through after instrument pierces through when one or more prosopyle 6a be arranged on capsule water inlet wall 3 pierceable region 6 in time at least part of viscous deformation.

The capsule according to the present invention with distortion pierceable region is shown in Figure 14 and 15.

As will be disclosed more in detail after a while, at least one pierceable region 6 reason can be injected, by the suitable implantation tool of brewing devices, pressure that the water of capsule is applied on capsule water inlet wall 3 and be out of shape; Capsule can the distortion being low to moderate in the scope of 2 bar 6 bar, under the hydraulic pressure of preferably 24 bar.

According to a preferred aspect of the present invention, described pierceable region or multiple pierceable region 6 pierce through to provide brewed liquid to enter the path of described capsule by the instrument that pierces through of the brewing devices extended along the predefined paths bored a hole by described capsule. According to an aspect of the present invention, the path being arranged on the path arranged along it at least partly into the pierceable region on water wall 3 or multiple pierceable region 6 along the instrument that pierces through corresponding to brewing devices extends.

Pierceable region be pierced and subsequently to internal strain in the hollow body of capsule so that pierceable region, and at least one of the hole being specifically arranged on pierceable region no longer pierce through tool in contact by brewing devices.

According to an aspect of the present invention, at least partly at least one pierceable region 6 described because of pierce through described in described brewing devices the penetration depth of instrument 40 in water inlet wall at least 50% until 150% motion and be out of shape, to be provided in described water inlet wall 3 and the increase water passage piercing through between instrument.

In using, the water inlet pierceable region of wall 3 or multiple pierceable region 6 be pierced tool in contact and bore a hole and subsequently preferably under the hydraulic pressure effect injecting capsule in distortion.

As has already been mentioned above, capsule according to the present invention comprises at least one the reinforcement district 7,7 ' of the water inlet wall 3 that permission makes pierceable region effectively bore a hole by making the water inlet wall except pierceable region put more energy into, when pressurized water injects capsule, strengthen district (multiple reinforcement district) 7,7 ' and may be out of shape or may not be out of shape.

Possible embodiment according to the present invention not illustrated in the drawings, the reinforcement district of water inlet wall is relative to the part of the water inlet wall 3 except strengthening district 7, and the thickness specifically increased relative at least one pierceable region being arranged in outside described reinforcement district 7.

In other words, according to possibility embodiment, the different behaviors in reinforcement district 7 wall of water inlet wall 3 these regions to realize water inlet wall thicker at least one pierceable region 6 so that first pierceable region 6 can effectively be pierced through by the instrument that pierces through of brewing devices and be out of shape because of hydraulic pressure subsequently.

According to different possibility embodiment, at least one of capsule water inlet wall 3 is strengthened district 7 and is comprised reinforcement instrument 10,20. According to possibility embodiment, strengthening instrument can also extend at least partially on the described sidewall 2 of capsule. Can be realized by the combination of the thickness that increases relative at least one pierceable region and the existence of reinforcement instrument 10,20 it must be noted that at least one of water inlet wall strengthens putting more energy into of district 7,7 '.

According to may embodiment, it is intended to the reinforcement instrument 10,20 that at least one being limited on the water inlet wall 3 of capsule strengthens district 7 comprise from water inlet wall surface is outstanding and circumference and/or the one or more ridge being arranged radially at described water inlet wall 3 or rib 20.

According to another possibility embodiment, limit at least one reinforcement instrument 10,20 strengthening district 7 and comprise at least one recess 10 being completely contained in and extending in described water inlet wall 3 or on not only described sidewall 2 but also described water inlet wall 3.

It must be noted that reinforcement district 10,20 in ridge 20 and the form of recess 10 can together with or separately for same reinforcement district 7.

As will be disclosed more in detail after a while, at least one line of delimitation 8,8 ' is limited at least one into water wall 3 and strengthens between district 7 and at least one pierceable region 6. It must be noted that line of delimitation 8 can be imagination line and cannot represent actual line or the feature of capsule. When at least one pierceable region 6 is out of shape, at least one line of delimitation corresponding to water inlet wall 3 distortion (bend) partly, namely at least one pierceable region and water inlet not being out of shape of wall 3 (not bending) partly, i.e. the line of delimitation at least one reinforcement district 7. " hinge " that line 8 can be used as between the different parts of water inlet wall.

According to an aspect of the present invention, at least one pierceable region 6 and at least one reinforcement district 7 are arranged in on water wall 3 along alternating pattern. Preferably, at least one reinforcement district 7 described and at least one pierceable region 6 described replace along the described perimeter edge 2c connecting sidewall 2 to the radial direction of the center axis A of capsule hollow body 5.

According to preferred embodiment, as shown in drawings, it provides districts 7,7 ' are strengthened in water inlet two of wall 3, and the continuous or discontinuous extension along the general toroidal district strengthening the water inlet wall 3 between district 7,7 ' at two of at least one pierceable region 6.

Preferably, the first reinforcement district 7 ' is arranged corresponding to the center top of water inlet wall 3, and the 2nd reinforcement district 7 is arranged corresponding to perimeter portion, the perimeter edge 2 that is preferably close between the water inlet wall 3 of capsule and sidewall 2 of water inlet wall. At least one pierceable region 6 is arranged in reinforcement district, described center 7 ' and described circumference is strengthened in the water inlet wall region between district 7.

The capsule of the embodiment according to Fig. 1-5 is provided with the reinforcement instrument limiting at least one and strengthening district 7, reinforcement instrument be included in not only intake on wall 3 but also extend on the side wall 2 and by the joint area of described each wall together at least one, preferably multiple recess 10. In other words, capsule is provided with at least one recess 10 of the ripple forming the circumference end 2c corresponding to sidewall. It must be noted that the shape that the perimeter edge 2c of sidewall 2 that at least one recess 10 extends from it corresponding to sidewall 3 limits not only intake wall 3 but also sidewall 2 is revised.

More in detail, recess 10 is arranged corresponding to the circumference end 2c of the sidewall 2 that water inlet wall 3 extends from it, and therefore recess extends on the not only sidewall but also wall of intaking of capsule. Recess 10 comprises at least one surface of sidewall and the water inlet wall connecting capsule, and in fact at least one surface is formed and connect sidewall 2 with water inlet wall 3 and relative to the additional walls all tilted both them.

At least one recess 10 comprises at least one surface 12, and at least one surface 12 is positioned in plane P, or it comprises relative to the center axis A of capsule or relative at least one axis B with the axis maintenance constant inclination angle �� of center axis A parallel. It must be noted that preferably, the inclination alpha on the surface 12 of recess 10 by plane P or the counter-bevel of axis (straight line) B measure.

Preferably, the plane P on surface 12 or at least one axis B point to capsule center axis A or be parallel to center axis vertical axis and/or with the center axis of capsule or the vertical axes intersect being parallel to center axis A.

In the embodiment shown, water inlet wall 3, the top 2b of sidewall and the thickness of recess 10 are constant; But, the present invention comprises the embodiment of the different thickness having in the different zones of wall.

As may be appreciated in the cross-sectional view of figure 2, each outer recess 10 is corresponding to the projection 11 in the hollow body 5 of capsule, and namely the recess 10 of capsule forms the capsule sidewall of the corresponding interior projection being provided in capsule and the amendment of water inlet wall.

Recess 10 can regard " removal " of the part volume of the capsule from the joint (perimeter edge 2c) between water inlet wall 3 and sidewall 2 as; Therefore, the exemplary shape that wall is modified and removes volume to be again elevated to initial level and shape below their " sinkings " to its initial level is the part of prism or prism, it is preferable that from the bottom of trilateral, at the bottom of parallelepiped, at the bottom of right cylinder and the prism of hexagonal floor or have the prism of selection the prism at the end formed by rule or irregular polygon. Therefore, at least one surface 12 " belonging to " design of recess 10 for the prism of " removal " capsule volume at least partially.

Therefore, recess 10 comprises the surface 12 of water inlet the wall 3 and sidewall 2 connecting capsule. Therefore surface 12 forms the additional walls part of capsule. In other words, corresponding to recess 10, water inlet wall 3 is connected to sidewall 2 by least one surface 12 of recess 10.

According to different may embodiment, each recess 10 is by a continuous surface or can be directed so that the two or more surfaces forming recess 10 are formed in a different manner. It is to be understood that if recess 10 is realized by the volume " removal " corresponding to part right cylinder, then recess 10 comprises the unique continuous level 12 (embodiment shown in Figure 5) connecting water inlet wall and sidewall. In the case, recess realizes by removing corresponding to the volume of the prism part with different shapes of such as parallelepiped prism or hexagonal prismoid, and recess is formed (see the embodiment shown in Fig. 5 a) by two or more surperficial 12.

As has already been mentioned above, in the embodiment shown in Fig. 1-5, recess 10 comprises and connects water inlet wall 3 at least one surface 12 tilted relative to vertical direction with sidewall 2.

In the embodiment shown in Fig. 1-5, recess 10 comprises relative to vertical direction, namely relative at least one surface 12 of center axis (A) or axis in parallel inclination.

Preferably, keep at least one surface 12 of the recess 10 of constant inclination angle to be the bottom surface 12 of recess 10 relative to the center axis A of capsule or vertical axis. In other words, each recess comprises preferably " inclination ", namely at least one surface 12 of additional surface it is formed slopely, it is preferable that relative to the bottom surface of the recess 10 that vertical axis (that is, the center axis A of capsule or axis in parallel) tilts with constant inclination degree.

As has already been mentioned above, and as shown in the figure, the surface 12 of recess 10 is preferably smooth, and in fact, described surface is positioned in plane P, or it comprises at least one straight line B (axis). In addition, at least one surface 12 of recess 10 preferably keeps constant inclination angle �� relative to the center axis A of capsule or axis in parallel along its whole extension. In other embodiments, axis A in center is formed and tilts part so that recess comprises the inclined surface along axis A.

Preferably, inclined surface 12 and vertical direction, namely relative to the direction of longitudinal axis A parallel of central vertical rotation, i.e. capsule or more simply form sharp angle �� (in Fig. 2 visible) with axis A as shown in Figure 2. Generally, sharp angle �� as above be included in the scope of 10 ��-75 ��, preferably 25 ��-60 ��, most preferably about 35 ��-50 ��.

As shown in the figure, according to an aspect of the present invention, the surface 12 of recess 10, and preferably bottom surface relative to capsule center axis A recess 10 between proximal end 10a and distal end 10b extend.

In other words, at least one surface 12 from the end 10a that recess 10 is nearest relative to center axis A extend to recess 10 from capsule described center axis A away from end 10b.

It must be noted that wording recess 10 refers to recess 10 at least one point or region closest to the center axis A of capsule near the end 10a of the center axis A of capsule. Similarly, wording recess from capsule center axis A away from end 10b refer to recess 10 from capsule center axis away from least one point or region.

According to an aspect of the present invention, the distal end 10b of recess 10 is arranged on the sidewall 2 below the circumference end 2c of sidewall 2. In other words, recess 10 decentering axis A the farthest away at least one point or region below the circumference end 2c of sidewall 2.

More in detail, in the embodiment shown in accompanying drawing 1-5, each recess 10 is formed by the inclined surface 12 being provided with surface, two sides 12 '. Inclined surface 12 is general planar and tilts relative to vertical direction, and in inclined surface 12 and vertical direction, to be namely parallel between the direction of center axis A the angle �� formed be acute angle. The surface, side 12 ' of recess 10 is preferably arranged in by the plane of the center axis A of capsule.

According to an aspect of the present invention, recess 10 is relative to the center axis A radial arrangement of capsule, and preferably capsule comprises the circumference end 2c along sidewall 2 with multiple recesses 10 of constant pitch arrangement, therefore provide the sidewall of capsule and evenly putting more energy into of water inlet wall.

Preferably, recess 10 is sized to so that constant " completely-sky " that provide the edge sidewall circumference end 2c that water inlet wall 3 extends from it replaces, and namely recess 10 (sky) replaces with the constant of part (expiring) not having the sidewall 2 of recess with water inlet wall.

In the embodiment of the capsule shown in Fig. 1-4, the quantity of recess 10 increases relative to the embodiment shown in Fig. 5,5a. In addition, in the embodiment of the capsule shown in figure Fig. 1-4, recess is narrower than the recess 10 of the embodiment shown in Fig. 5,5a. More in detail, in figures 1-4, the width w of the inclined surface 12 of recess 10 reduces relative to the embodiment shown in Fig. 5,5a.

Fig. 5,5a show even number recess, i.e. 6 recesses. As previously mentioned, the quantity of recess can be selected from prime number, preferably from 5,7,11 and 13; Fig. 4 shows the capsule with 11 recesses. The prime number of recess quantity is selected to cause being contained at capsule wherein increasing relative to the random position piercing through element being present in described container with the capsule in the container of the brewing devices being pierced. This kind of capsule increases relative to the random position piercing through element may not good effect by what reduce system.

Advantageously, according to the possible embodiment of the present invention, the thickness of recess 10 equals the thickness of the water inlet wall 3/ except described recess or sidewall 2, but, therefore other thickness can be suitable for manufacturing the specification of capsule material used. As has already been mentioned above, in the present invention, wording " thickness of recess " refers to the thickness of the capsule wall section corresponding to recess, and specifically refers to the thickness at least one surface 12 connecting the water inlet wall of capsule and the recess 10 of sidewall.

The reinforcement district 7 of the adjacent water inlet wall 3 limited by recess 10 is arranged at least one pierceable region 6 of water inlet wall 3, it is preferable that exceed the end 10a of at least one recess 10 on water inlet wall 3.

Preferably, the line of delimitation 8 strengthened between district 7 and at least one pierceable region 6 is limited by the round wire of the end 10a of coupling recess portion 10.

It must be noted that " end " 10a of wording recess herein for recess 10 end represented on water inlet wall 3, namely closer to the part of center axis A of capsule, figure represents with Reference numeral 10a. The recess side contrary with end 10a is the end 10b being positioned on sidewall 2; Surface 12 connecting end portion 10a and end 10b.

It must be noted that according to different possibility embodiment, at least one pierceable region 6 can be arranged in the region between the end 10a of recess 10 and the summit corresponding to the water inlet wall 3 of the center axis A of capsule.

In the embodiment shown in Fig. 1-5, the water inlet wall 3 of capsule is provided with the 2nd reinforcement district 7' that the center top corresponding to water inlet wall is arranged. In the embodiment shown, strengthen district 7' to limit by the reinforcement instrument of the form of multiple ribs 20 outstanding in the internal surface from water inlet wall 3. Rib 20 preferably in a radial fashion from water inlet wall 3 centre portions, substantially arrange from central shaft line A. Being arranged on and figure 3 illustrates into the rib 20 in the centre portions of the internal surface of water wall 3, Fig. 3 is the upward view of capsule.

Preferably, the line of delimitation 8' strengthened between district 7' and pierceable region 6 is limited by the round wire of the end 20a of the rib 20 being connected radial arrangement. It must be noted that in the embodiment of capsule being provided with this kind of rib 20, one or more pierceable region 6 is preferably arranged between recess 10 and rib 20. More in detail, one or more pierceable region 6 is arranged in end 10a, the end 20a namely strengthening district 7 and rib 20 of recess 10, namely strengthens on the water inlet wall 3 between district 7'.

As has already been mentioned above, the thickness of pierceable region 6 can lower than the thickness at the water inlet wall 3 strengthened in district 7.

The embodiment of the capsule shown in Fig. 6-11 is similar to the embodiment disclosed by Fig. 1-5, except in the layout being intended to limit the reinforcement instrument of the form of at least one recess 10 strengthening district 7 of capsule water inlet wall 3.

In fact, as mentioned above, in the embodiment shown in Fig. 1-5, recess 10 is in extension on wall but also sidewall of not only intaking, and in the embodiment shown in Fig. 6-11, recess is completely contained in capsule water inlet wall 3, namely they do not extend on the side wall 2, specifically, and they do not extend below the circumference end 2c of sidewall 2. Feature corresponding in figs. 1-5 and in Fig. 6-11 respective figure mark represents.

As discussed with reference to Fig. 1-5, equally in Fig. 6-11, the water inlet wall 3 of capsule is provided with the 2nd reinforcement district 7' of the center top location corresponding to water inlet wall. In the embodiment shown, strengthen district 7' to limit by the reinforcement instrument of the form of multiple ribs 20 outstanding in the internal surface from water inlet wall 3. The details of reinforcement portion, center 7' is the same with the details discussed above with reference to Fig. 1-5.

Figure 12,13 shows the further of the capsule according to the present invention may embodiment. More in detail, capsule 1 comprises multiple recess 10, as disclosed above, on the not only water inlet wall 3 that multiple recess 10 or can be arranged in capsule but also sidewall 2, or is completely contained in the water inlet wall 3 of capsule. Part 10 provides the first outside circumference to strengthen district 7. Reinforcement district, center 7' is provided with the 20 of rib radial arrangement; There is the circumference rib 20b being arranged on two line of delimitation 8,8' place.

According to the possible embodiment not illustrated in the drawings, the circumference rib 20b being arranged between center reinforcement district 7' and pierceable region 6 can be removed.

, it is necessary to point out, in fact it is optional corresponding to being positioned at the circular rib 20b arranged into the end 20a of the radial arrangement rib 20 on the center top of water wall 3.

It is centrally located at and corresponds essentially to circular rib 20b into the reinforcement district 7' on the top of water wall and the line of delimitation 8' between at least one pierceable region 6 of capsule water inlet wall 3. Circumferentially water inlet wall on reinforcement district 7 and capsule water inlet wall 3 at least one pierceable region 6 between line of delimitation 8 correspond essentially to circular rib 20b.

Figure 12 A and 12B discloses embodiment, and wherein, recess 10 is substituted by the reinforcement instrument 20c of the form in rib, it is preferable that is arranged radially on water wall 3 and extends on water inlet wall 3, or is preferably not only intaking on wall 3 but also sidewall 2. Multiple radial rib 20c is arranged in the perimeter portion into water wall 3, is namely close in the part of the perimeter edge 2c intake between wall and sidewall, to provide reinforcement portion 7. According to preferred aspect, radial arrangement rib 20c also extends on the sidewall 2 of capsule.

In addition, circular rib 20b gives prominence to from the lower surface of water inlet wall 3, and preferably, it circumferentially extends relative to the perimeter edge 2c of water inlet wall 3, namely forms round wire relative to capsule center axis A. By doing like this, it is arranged in and limits (as shown in the embodiment of Figure 12 A and 12B) by circular rib 20b and radial arrangement rib 20c into the reinforcement district 7 on the perimeter portion of water wall 3. It must be noted that the line of delimitation 8 between the reinforcement district 7 of capsule water inlet wall 3 and at least one pierceable region 6 corresponds essentially to circular rib 20b. If circular rib 20 is not arranged on capsule water inlet wall 3, then the line of delimitation that circumference is strengthened between district 7 and at least one pierceable region 6 can be limited by the end of the radial arrangement rib 20c closer to capsule center axis A.

Must be pointed out, according to different may embodiment, at least one pierceable region 6 can be arranged on strengthen district 7 line of delimitation, namely Figure 12,13, circumference rib 20b in the embodiment shown in 12A and 12B and corresponding in the region between the top of the water inlet wall 3 of capsule center axis A.

In the embodiment shown in Figure 12 A and 12B, the water inlet wall 3 of capsule is provided with the 2nd reinforcement district 7' being arranged on in the center top of water wall. In the embodiment shown, strengthen district 7' to limit by the reinforcement instrument of the form in the multiple ribs 20 preferably given prominence to from the internal surface of water inlet wall 3. Rib 20 preferably in a radial fashion from water inlet wall 3 centre portions, substantially arrange from central shaft line A.

Preferably, the line of delimitation 8' that central authorities strengthen between district 7' and at least one pierceable region 6 is limited by the round wire of the end 20a of the radial arrangement rib 20 being connected reinforcement district, center 7'.

In the embodiment shown in Figure 12 A and 12B, as Figure 12 B better shown in, Figure 12 B is the upward view of capsule, and reinforcement district, center 7' comprises more than first the radial arrangement rib 20' of its starting point having at the point corresponding to capsule center axis A.

In addition, center reinforcement district 7' comprises the 2nd many radial arrangement ribs 20 with its starting point away from the point corresponding to capsule center axis A ".

Preferably, central authorities strengthen the line of delimitation 8' between district 7' and at least one pierceable region 6 by being connected the 2nd many radial arrangement ribs 20 " the round wire of end 20a limit.

Being arranged radially at in the shown preferred embodiment of the capsule of the rib 20 on reinforcement portion, the top 7' of water wall being provided with, (one or more) pierceable region 6 is arranged in recess 10 or the radial rib 20c of perimeter and is arranged radially between the rib 20 in the part of water wall 3. More in detail, in the embodiment shown in Figure 12,13, one or more pierceable region 6 can be arranged in the end 10a of recess 10 and be arranged on the water inlet wall 3 between the end 20a of the rib 20 on the top of water wall 3 to limit the reinforcement district 7 being positioned at central position.

According in the capsule of the present invention, at least one pierces through 6 and is preferably arranged in and has each other on the annular section of 3.1mm 4.1mm and the preferably water inlet wall of two boundary circumference of 3.3mm 3.9mm.

With reference to illustrated embodiment, wherein, pierceable region 6 is arranged in two and strengthens district 7,7'(and circumferentially and be centrally located at on water wall 3) between, strengthen the line of delimitation 8 between district and pierceable region and 8' is spaced apart 3.1mm 4.1mm and preferably 3.3mm 3.9mm.

According in the capsule of the present invention, circumference strengthens district 7, the 20%-40% of the radial distance that is namely close between the reinforcement district that sidewall perimeter edge 2c the arranges sidewall 2 (and preferably its perimeter edge 2c) extending (radially) capsule on water inlet wall 3 and wall 3 top that intakes (and preferably its central shaft line A) and preferably 25%-35%. In a preferred embodiment, when from axis A to the radius of edge 2c altogether 100%, the 20%-40% of the radial distance between the sidewall 2 of each part 7,7' and 6 extension capsule (and preferably its perimeter edge 2c) and the center axis A of water inlet wall 3 and preferably 25%-35%.

In addition, in the embodiment shown in Fig. 1-15, except the embodiment shown in Figure 12 A and 12B, capsule is provided with the internal surface from sidewall 2 and gives prominence to and be intended to stop the vertical lugs 9 stacking during production process of capsule. As illustrated in fig. 12, outstanding lug can be topped to control and is convenient to stacking, if needed like this. The thickness of this kind of lug (multiple lug), shape and radius by according to the selected manufacture method change treating to select from the method relatively early mentioned because it is easily inferred by those skilled in the art.

Vertical lugs can extend on wall 3 but also sidewall 2 not only intaking, or they can only be arranged on the sidewall 2 of capsule, as in the embodiment shown in Fig. 1-12 and 13-15. In the embodiment shown in Figure 12 A and 12B, and generally, circumference is strengthened in the capsule of reinforcement instrument that district 7 comprises the form in the rib 20c also extended on the side wall 2 wherein, and the function of vertical lugs 9 can be performed by the part of the strengthening rib 20c extended on the side wall 2.

In addition, in example shown embodiment, at least one sealing element 30 is arranged on the flange shape rim 31 of capsule, is namely designed to and on container and the capsule halves that specifically contacts with the pressing part of the lower rim of container, i.e. container, is sealed and matched for providing.

Any appropriate seal component can be used.

Capsule according to the present invention can manufacture with plastics, biological plastics, so-called " green " plastics (it is the plastics from renewable source).

Capsule can manufacture by injection molding or by thermoforming. Capsule can be provided with as the layer of oxygen and the barrier of gas infiltration.

Suitable known barrier material is such as that EVOH, EVOH can such as show as and have polyacrylic multilayered structure, such as PP-EVOH-PP, or preferably has the multilayered structure of polyethylene, such as PE-EVOH-PE. Multilayered structure can be laminated into for thermoforming; Or, multilayered structure is obtained by the coinjection moulding of capsule body; The common injection of coffee capsule is the usually known technology of technician and is not the target of the present invention. This kind of technology is commercial buys.

Barrier can outer setting be coating equally. Suitable coating is can from such as Nanolok^TMThe coating that PTADV-7 buys and PVD or PECVD coating. Coating by spraying or can apply by flooding, suitable coating, and especially nano coating can obtain from the mixture comprising kaolin or silicate nano particle and polymkeric substance, selection of land can become mixture as water. This kind of synthetics is such as comprise being dispersed in the concentrated nano-complex dispersion that water becomes the silicate filler in medium and matrix polymer, the concentrated nano-complex dispersion such as such as disclosed in WO2009/114071, WO2006/115729, WO2008/147380, WO2009/114072, US8309230. The barrier of another type can obtain to plastic material by adding suitable nano-complex, such as, disclosed by WO2007/106671.

According to an aspect of the present invention, at least the sidewall 2 of capsule makes integral piece with water inlet wall 3. In addition, according to the further aspect of the present invention, sidewall 2 and water inlet wall 3 are made up of same material, it is preferable that be made up of plastic material.

Various processes may be used for obtaining the capsule according to present aspect, and such as, at least water inlet wall 3 and sidewall 2 can be made up of injection of plastic material or common injection of plastic material.

It must be noted that for the production of capsule and specifically the mechanical characteristics of material of its water inlet wall 3 and thermal property are crucial concerning the distortion obtaining at least part of one or more pierceable region.

The experimental test completed by applicant shows, it may also be useful to the plastic material with thermal property and the mechanical characteristics reported below allows the effective perforation realizing at least one pierceable region of capsule water inlet wall equally and the distortion subsequently of at least part of pierceable region caused during beverage preparation by hydraulic pressure.

Suitable plastic material to be used is provided with to be included in 850 1050kg/m³Scope in, preferably 0.951kg/m³Density (measuring according to ISO1872), be included in the scope of 9 13g/10min, preferably 11g/10min melting flow (MFR according to ISO1133 measures), be included in the scope of 23 29MPa, PP and PE, the preferably HDPE of the preferably tensile stress (measuring according to 527-2/1B) of 26MPa. Preferred material shows all above-mentioned preferred values.

In addition, Vicat softening temperature be preferably included in the scope of 50 80, preferably 55 75 and more preferably 60 70 (measuring according to ISO306 (B50 method)). When measuring with standard A STMD1525B50, Vicat softening temperature is preferably included in the scope of 50 60, preferably 54-58 and more preferably 56. Fusing point (second-heating) is preferably included in the scope of 115 145 DEG C, it is preferable that 131 DEG C (measuring according to ASTMD2117). Suitable material have be included in 55-66 scope in, preferably 60 Shore D hardness (ASTMD2240).

The suitable plastic material of capsule product is as business-like by INEOSHD5211EA is sold plastic material.

As has already been mentioned above, the present invention also relates to the system for the preparation of beverage of the capsule comprising the above-mentioned type.

More in detail, capsule bores a hole to provide for comprising at least one pierceable region of the wall 3 that is intended to be intake by capsule in the brewing devices piercing through instrument of one or more prosopyle 6a. Brewing devices comprises water injection tool that pressurized water is injected in capsule hollow body 5 by described one or more water injection hole 6a.

At least one pierceable region 6 of water inlet wall 3 viscous deformation at least partly during prepared by beverage.

According to an aspect of the present invention, the path being arranged on the path arranged along it at least partly into the pierceable region on water wall 3 or multiple pierceable region 6 along the instrument that pierces through corresponding to brewing devices extends.

As has already been mentioned above, at least one pierceable region of capsule at least partly inwardly viscous deformation in hollow body. The possible embodiment of the distortion water inlet wall of capsule is shown in Figure 14 and 15.

In fact, at least one pierceable region 6 viscous deformation at least partly after described pierceable region 6 has been pierced through by the instrument that pierces through 40 of brewing devices and one or more prosopyle 6a has been arranged in the described pierceable region 6 of capsule water inlet wall 3.

More in detail, as shown in FIG. 14 and 15, at least one pierceable region 6 of water inlet wall 3, after its distortion, no longer contacts described in brewing devices and pierces through instrument 40.

In addition, according to aspect of the present invention, at least partly at least one pierceable region 6 because of pierce through described in described brewing devices instrument 40 water inlet wall in penetration depth at least 50% until 150% motion and viscous deformation. By doing like this, it is possible to obtain the increase water stream channel pierced through between instrument of water inlet wall and brewing devices.

The brewing devices that the present invention also relates to the capsule from the above-mentioned type and comprises the instrument of piercing through and water injection tool is to prepare the method for beverage.

Method comprises the step piercing through one or more prosopyles that at least one pierceable region at least partly described into water wall is provided in described capsule water inlet wall with the instrument that pierces through of brewing devices; And during prepared by beverage, make the step of at least one the pierceable region viscous deformation described at least partly into water wall.

Advantageously, as has already been mentioned above, the viscous deformation of at least part of capsule pierceable region allows to increase the water stream channel in capsule. In fact, after water inlet wall is out of shape, the instrument that pierces through of brewing devices does not provide the obstacle in the one or more water holes realized on water inlet wall because of its perforation.

It must be noted that in the method according to the invention, at least one pierceable region 6 is at least part of viscous deformation after at least part of pierceable region has been bored a hole to provide one or more prosopyle 6a by the instrument that pierces through 40 of brewing devices.

As mentioned above, it is necessary, at least one pierceable region 6 is being applied under the pressure on described water inlet wall at least partly viscous deformation by the water injected by the water injection tool of brewing devices.

In this, method comprise the water injection tool by brewing devices by water by method steps a) in be arranged on and inject the step in described capsule hollow body 5 into the described one or more prosopyle 6a on water wall 3. By doing like this, at least one pierceable region 6 is being applied under the pressure on described water inlet wall 3 at described method steps b by the water injected by the water injection tool of brewing devices) viscous deformation at least partly.

Preferably, hydraulic pressure is included in the scope of 2 bar 4 bar.

Aspect according to method, when water is injected described capsule by the described water injection tool of brewing devices, it is determined that at least two independent pressure increase stages.

Preferably, the viscous deformation of at least one pierceable region occur in the pressure increase in the hollow body of capsule and the beverage for preparing from discharging wall first between discharging. In fact, during beverage preparation, pierced through by brewing devices in capsule pierceable region after instrument bores a hole, the hollow body that water injects capsule by the one or more hole obtained on pierceable region with the pressure that increases in capsule with realize wherein effective dipping of accommodation product.

The viscous deformation of the water inlet wall of capsule allows at least two the independent pressure increase stages realizing being injected water. In fact, increasing first of pressure is bored a hole by the instrument that pierces through of brewing devices and realization after water injection capsule at least one pierceable region of capsule. Pressure increase, until at least one pierceable region distortion at least partly, therefore allows the water stream channel increased in capsule. Second time pressure increase is by by distortion water inlet wall, water is injected capsule until the impregnated realization of product that is contained in capsule hollow body, and the pressure in capsule determines opening of capsule discharging wall.

It must be noted that according to the further aspect of method, the viscous deformation of at least one pierceable region 6 described occur in the pressure increase in hollow body 5 and the beverage for preparing from discharging wall 4 first between discharging.

Figure 14 and 15 shows the capsule according to the present invention with the shape being similar to the shape about Fig. 1-4 disclosure, wherein, and at least part of pierceable region 6 viscous deformation.

As shown in FIG. 14 and 15, inwardly viscous deformation is in capsule hollow body 5 at least part of pierceable region 6, and the favourable aspect according to the present invention, only pierceable region 6 is out of shape at least partly. In fact, reinforcement district or multiple reinforcement district 7 are not out of shape during beverage preparation. More in detail, according to an aspect of the present invention, the distortion of pierceable region is contained at least one line of delimitation 8 substantially, and at least one line of delimitation 8 is strengthened at least one extending between district 7 and at least one pierceable region 6 substantially.

As shown in Figure 14,15, pierceable region 6 is out of shape substantially in the region being included between two line of delimitation 8, and two line of delimitation 8 are strengthened two district 7 in theory and separated with annular pierceable region 6.

Even if illustrating that it is out of shape completely in the drawings, but only pierceable region deformable at least partly.

In addition, it is necessary to point out, even if not illustrating in the drawings, the distortion of at least part of pierceable region that the capsule shown in the embodiment of Fig. 5-13 can have similar behavior during beverage preparation and stand in capsule as shown in FIG. 14 and 15.

The present invention is disclosed further with reference to the simultaneous test between the following capsule according to the present invention and commercial commercially available capsule.

The result of simultaneous test shows according to the brewed output parameter of the raising in the capsule of the present invention unrelated with used machine.

Brewed output parameter is calculated by the mathematical formula reported below:

%Brewyield=(%extractedsolids �� drinkweight (g)) �� fillweightofthecapsule (g) x100

Filling weight (g) �� 100 of the brewed output of %=(% extracts solid �� beverage weight (g)) �� capsule

Brewed output depends on the per-cent being extracted solid of capsule, the beverage weight produced and filling liquid weight.

The test reported below carries out on two kinds of different coffee powders:

Coffee A: in having black dull cure color (8.5La) spread out this tower (Robusta) and Arabica (Arabica) cures coffee powder mixture

Coffee B: there is black 100% Arabica (Arabica) curing color (6.5La) and cure coffee powder

Use following commercial commercially available coffee machine:

��U��Coffee machine, it may also be useful to the automatic concentration coffee brewing apparatus of clamping force automatically,

��Pixie��Coffee machine, it may also be useful to the automatic concentration coffee brewing apparatus of hand-operated clamping power

Example 1

The coffee A weighing up accurate 5.2g enters in the capsule according to the present invention. This capsule is then placed on automatic UIn espresso coffee machine and brewed concentrated coffee. Then, it may also be useful to the specific gravity hydrometer apparatus measures % known in the art such as " Kyoto " extracts solid and also represents as g/100g taking the solid that can extract from the density calculation of brewed coffee/extract.

Consequent beverage has 26% brewed output.

Comparison example 1

Coffee A also uses Nespresso capsule (namely, it does not have according to the improvement capsule designs of the present invention) brewed in same espresso coffee machine, and only obtains 24% brewed output.

Figure 16 shows improvement capsule and the brewed output (%) of Nespresso capsule in U coffee machine contrasts.

Example 2

The coffee A weighing up accurate 5.2g enters in the capsule according to the present invention. This capsule is then placed on automatic PixieIn espresso coffee machine and brewed concentrated coffee. When using Kyoto method measurement % extraction solid and the brewed output of % calculates as described in Example 1. Consequent beverage has 25% brewed output.

Comparison example 2

Coffee A is not also having the original of the improvement capsule designs according to the present inventionIn capsule brewed, and obtain only 24.5% brewed output.

Figure 16 show improve capsule withBrewed output (%) contrast of capsule in Pixie coffee machine.

Example 3

The coffee B weighing up accurate 5.2g not only entersIn capsule and enter in the capsule according to the present invention. Two capsules are then all placed on PixieIn coffee machine and brewed concentrated coffee. Use the improvement capsule according to the present invention, obtain 21% brewed output.

Comparison example 3

Coffee B is not also having the original of the improvement capsule designs according to the present inventionIn capsule brewed, and obtain only 18.5% brewed output.

Figure 18 shows improvement capsule and the brewed output (%) of Nespresso capsule in Pixie coffee machine contrasts.

Example 4

The coffee B weighing up accurate 5.2g not only entersIn capsule and enter in the capsule of the present invention. Two capsules are then all placed on PixieIn coffee machine and brewed concentrated coffee. In brewed period, also measure brew time and infusion pressure. Coffee B within a short period of time (17 seconds) in the capsule of the present invention and brewed under lower pressure (11.5 bar), and still obtain good brewed output, namely 21%.

Comparison example 4

Coffee B also usesCapsule is brewed in same espresso coffee machine, and brew time longer (21 seconds) and under elevated pressures (14.5 bar), and obtains lower brewed output, and namely 18.5%.

Figure 19 shows to be had the improvement capsule designs according to the present invention and not to have according to the brew time in the Pixie coffee machine of the improvement capsule designs of the present invention, infusion pressure and the brewed output of %.

Example 5

The coffee B weighing up accurate 5.2g not only enters in Nespresso capsule but also enters in the capsule according to the present invention. Two capsules are then all placed in UNespresso coffee machine and brewed concentrated coffee.

In brewed period, also measure brew time and infusion pressure. Coffee B in the capsule of the present invention is within the short period (20 seconds) and brewed in lower pressure (15 bar), and still obtains with the coffee B in Nespresso capsule at UThe brewed brewed output of identical % in coffee machine, namely 20%.

Figure 20 shows to be had the improvement capsule designs according to the present invention and not to have according to the brew time in the U coffee machine of the improvement capsule designs of the present invention, infusion pressure and the brewed output of %.

The advantage of results verification by realizing according to the capsule of the present invention above.

Claims

1. one kind for preparing the capsule (1) of beverage from brewing devices, described capsule comprises the sidewall (2) forming hollow enclosed body (5), water inlet wall (3) and discharging wall (4), infusion product is contained in described hollow enclosed body (5), wherein, described water inlet wall (3) comprises at least one pierceable region (6), described at least one pierceable region (6) pierces through the one or more prosopyles (6a) being provided in described capsule water inlet wall (3) by the instrument that pierces through (40) of described brewing devices, pressurized water is fed in described capsule hollow body (5) in brew cycle, it is characterized in that, described water inlet wall (3) comprises at least one and strengthens district (7), at least one reinforcement district (7) described separates with described at least one pierceable region (6) of described water inlet wall (3), and wherein, at least part of described pierceable region (6) is applying deformable under pressure thereon by the water of the described capsule of contact during prepared by beverage, thus given distortion at least partly to be kept by described pierceable region (6) at the end of described brew cycle.

2. capsule as claimed in claim 1, it is characterised in that, it provides at least two of described water inlet wall (3) strengthen district (7), and at least one pierceable region described (6) is limited by described reinforcement district at least in part.

3. capsule as claimed in claim 1 or 2, it is characterized in that, once described hole (6a) has been arranged on the described pierceable region (6) of described water inlet wall (3), then described at least one pierceable region (6) at least distortion described one or more prosopyle (6a) around, thus described pierceable region (6) around described hole (6a) be moved in described hollow body (5) so that described hole (6a) do not have at least partly described in pierce through instrument (40).

4. capsule as claimed in any preceding claim, it is characterized in that, described at least one pierceable region (6) of described water inlet wall (3) by the water injected by the water injection tool of described brewing devices (40) be applied under the pressure on described water inlet wall (3) can viscous deformation at least partly, described hydraulic pressure in the scope of 2 bar 6 bar, preferably 2 bar 4 bar.

5. capsule as claimed in any preceding claim, it is characterized in that, at least one line of delimitation (8) are limited to the described between at least one reinforcement district (7) and at least one pierceable region described (6) of described water inlet wall (3).

6. capsule as described in the arbitrary item in claim 2 to 5, it is characterized in that, described at least one pierceable region (6) and at least one reinforcement district (7) described are along alternating pattern, it is preferable that be arranged on described water inlet wall (3) along the described perimeter edge (2c) connecting described sidewall (2) to the radial direction of the center axis A of described capsule hollow body (5).

7. capsule as claimed in claim 6, it is characterised in that, described at least one pierceable region (6) is continuous or discontinuous extension along the general toroidal district strengthening the described water inlet wall (3) between district (7) at described two.

8. capsule as claimed in any preceding claim, it is characterized in that, after a deformation, at least one in the described hole (6a) in described distortion pierceable region (6) not with pierce through instrument (40) described in described brewing devices and contact.

9. capsule as claimed in any preceding claim, it is characterized in that, at least partly described at least one pierceable region (6) because of pierce through described in described brewing devices the penetration depth of instrument (40) in described water inlet wall at least 50% until 150% motion and viscous deformation, to determine at described water inlet wall (3) and the described increase water passage piercing through between instrument.

10. capsule as claimed in any preceding claim, it is characterised in that, at least described sidewall (2) makes integral piece with described water inlet wall (3) with identical material.

11. capsules as claimed in any preceding claim, it is characterised in that, at least described water inlet wall (3) and described sidewall (2) are made up of injection of plastic material or common injection of plastic material.

12. capsules as claimed in claim 11, it is characterised in that, described material comprises being provided with and is included in 850 1050kg/m³Scope in, preferably 0.951kg/m³Density (measuring according to ISO1872), be included in the scope of 9 13g/10min, preferably 11g/10min melting flow (MFR according to ISO1133 measures), be included in the scope of 23 29MPa, the HDPE of the preferably tensile stress (measuring according to 527-2/1B) of 26MPa.

13. capsules as claimed in any preceding claim, it is characterised in that, described water inlet wall (3) general dome shape.

14. capsules as claimed in any preceding claim, it is characterized in that, described at least one strengthen district (7) and comprise reinforcement instrument (10,20), and/or it comprises thickness at least part of having the thickness of described at least one pierceable region (6) relative to described water inlet wall (3) and increasing.

15. capsules as claimed in claim 14, it is characterised in that, limit at least one described reinforcement instrument (10,20) strengthening district (7) also at least in part in the upper extension of described sidewall (2) of described capsule.

16. capsules as described in claims 14 or 15, it is characterized in that, limit at least one described reinforcement instrument (10,20) strengthening district (7) and comprise from the surperficial one or more ridges (20) that are outstanding and circumferential and/or that be arranged radially at described water inlet wall (3) of described water inlet wall (3).

17. capsules as described in the arbitrary item in claim 14-16, it is characterized in that, limit at least one described reinforcement instrument (10,20) strengthening district (70) and comprise at least one recess (10) being completely contained in described water inlet wall (3) or above extending at not only described sidewall (2) but also described water inlet wall (3).

18. 1 kinds comprise the system preparing beverage of capsule (1) according to any one of claim and brewing devices as previously, described brewing devices comprises the instrument that pierces through (40) of one or more prosopyles (6a) that described at least one pierceable region (6) piercing through described capsule water inlet wall (3) is provided in described capsule water inlet wall (3), described brewing devices also comprises the water injection tool being injected in described capsule hollow body (5) by pressurized water by described one or more prosopyle, it is characterized in that, described at least one pierceable region (6) of described water inlet wall (3) is at least part of viscous deformation during described beverage preparation cycle.

19. systems as claimed in claim 18, it is characterized in that, during described beverage preparation cycle, described pierceable region (6) deform inward around described hole (6a) in described hollow body (5) so that described hole (6a) do not have at least partly described in pierce through instrument (40).

20. method, systems as described in claim 18 or 19, it is characterized in that, described at least one pierceable region (6) is pierced through instrument (40) in the described pierceable region (6) of described water inlet wall (3) and is pierced through described in described brewing devices, and described one or more prosopyle (6a) is out of shape after being arranged on the described pierceable region (6) of described capsule water inlet wall (3) at least partly.

21. systems as described in the arbitrary item in claim 18-20, it is characterized in that, described at least one pierceable region (6) of described water inlet wall (3) is being applied under the pressure on described water inlet wall (3) to be out of shape at least partly by the water injected by the water injection tool of described brewing devices, preferably, described hydraulic pressure is included in the scope of 2 bar 6 bar.

22. systems as described in the arbitrary item in claim 18-21, it is characterized in that, after a deformation, at least one in the described hole (6a) in described distortion pierceable region (6) not with pierce through instrument (40) described in described brewing devices and contact.

23. systems as claimed in any preceding claim, it is characterized in that, at least partly described at least one pierceable region (6) because of pierce through described in described brewing devices the penetration depth of instrument (40) in described water inlet wall at least 50% until 150% motion and viscous deformation, to determine at the increase water passage piercing through between instrument (40) described in described water inlet wall (3) and described brewing devices.

Preparing the method for beverage from the capsule (1) as described in the arbitrary item claim 1-17 and the brewing devices that comprises the instrument of piercing through (40) and water injection tool for 24. 1 kinds, described method comprises step:

A) with piercing through described at least one pierceable region (6) that instrument (40) pierces through described water inlet wall (3) one or more prosopyles (6a) to be provided in described capsule water inlet wall (3) described in described brewing devices;

It is characterized in that, comprise step further:

B) make described at least partly at least one pierceable region (6) of described water inlet wall (3) during prepared by beverage, at the deform under pressure being applied on described water inlet wall (3) by the water injected by the water injection tool of described brewing devices, thus preferably given distortion at least partly and kept by described pierceable region (6) at the end of described brew cycle.

25. methods as claimed in claim 24, it is characterized in that, once described hole (6a) has been arranged in the described pierceable region (6) of described water inlet wall (3), then described at least one pierceable region (6) at least distortion described one or more prosopyle (6a) around, thus described pierceable region (6) around described hole (6a) be moved in described hollow body (5) so that described hole (6a) do not have at least partly described in pierce through instrument (40).

26. methods as claimed in claim 25, it is characterized in that, described at least one pierceable region (6) has been pierced through instrument (40) and has been pierced through and described one or more prosopyle (6a) distortion at least partly after being arranged in the described pierceable region (6) of described capsule water inlet wall (3) in the described pierceable region (6) of described water inlet wall (3) described in described brewing devices.

27. methods as described in the arbitrary item in claim 24-26, it is characterized in that, described at least one pierceable region (6) of described water inlet wall (3) is being applied under the pressure on described water inlet wall (3) at least partly viscous deformation by the water injected by the water injection tool of described brewing devices, wherein, described hydraulic pressure in the scope of 2 bar 6 bar, preferably 2 bar 4 bar.

28. methods as described in the arbitrary item in claim 24-27, it is characterised in that, when water is injected described capsule by the described water injection tool of described brewing devices, at least two independent pressure increase stages occur.

29. methods as described in the arbitrary item in claim 24-28, it is characterized in that, the described distortion of described at least one pierceable region (6) occurs in the described pressure increase in described hollow body (5) and the beverage for preparing from first between discharging of described discharging wall (4).

30. methods as described in the arbitrary item in claim 24-29, it is characterized in that, described pierceable region (6) around one or more described hole (6a) be moved in described hollow body (5) so that described hole (6a) do not have described in pierce through instrument (40) so that described one or more hole does not contact pierces through instrument (40) described in described brewing devices.

31. methods as described in the arbitrary item in claim 24-30, it is characterized in that, at least partly described at least one pierceable region (6) because of pierce through described in described brewing devices the penetration depth of instrument (40) in described water inlet wall at least 50% until 150% motion and be out of shape, to determine at the increase water passage piercing through between instrument (40) described in described water inlet wall (3) and described brewing devices.