CN102596757A

CN102596757A - Coffee capsule

Info

Publication number: CN102596757A
Application number: CN2010800431110A
Authority: CN
Inventors: W·施勒德雷尔; H·P·罗德莱特纳
Original assignee: Sunday Products Handels & Co KG GmbH
Current assignee: Sunday Products Handels & Co KG GmbH
Priority date: 2009-09-28
Filing date: 2010-09-28
Publication date: 2012-07-18
Also published as: AT508887A1; AT508887B1; EP2483177B1; EP2483177A1; WO2011035360A1

Abstract

The invention relates to a coffee capsule (1), suitable for preparing a coffee drink in a drinks machine, having a thin-walled, frustoconical housing part (3) and having a bottom part (7) which is provided with inflow openings (18) for an extraction fluid (20), and having a lid part (4) which has at least one outlet opening (31). The outlet opening (31) of the lid part (4) is covered with a membrane (32) which is connected non-releasably to the lid part (4) and has a plurality of perforations (35).

Description

Coffee capsule

Technical field

The present invention relates to a kind of coffee capsule as described in the preamble as claimed in claim 1 (Kaffeekapsel).

Background technology

By the known a kind of disposable coffee capsule that is used for of file WO 2008/011913A1; Be used to hold the coffee that grinds of predetermined amount; Said coffee capsule is made up of three housing parts, and one of them substantial cylindrical, that fill with coffee powder, as to have bottom housing centre portion is with a cover sealing with the inflow entrance that is used for extract.Said bottom has at least one communication port that is used for extract (Extrakt); Guide said extract through said communication port to another housing parts; Said another housing parts has the access road of a tubulose and flow channel and a delivery port towards said communication port.Said access road covers with diaphragm seal, so that avoid dirt to get into the inside of coffee capsule, said diaphragm seal discharges the through port that is used for extract under corresponding pressure medium.

Become known for holding a certain amount of capsule that is used to prepare the product of beverage by another file DE 26 02 832 A1, the medium through accommodating fluid in capsule prepares beverage.This capsule is configured to the housing of truncated cone shape, and said housing has integrally formed bottom, and said bottom has flow export.In the inner chamber of capsule, at the upper reaches of flow export flexible seal disc is set, said seal disc abuts on the housing wall hermetically.After with the product filled capsules, housing seals with shrouding disc.When using capsule, form through separate cover dish mechanically and to be used for inflow entrance to housing inner chamber supplying media.If in housing, reach the interior pressure relevant with the elastic behavior of seal disc; Because the supporting member that seal disc is bearing on the bottom causes the bowl-shape distortion of seal disc; Open the circular clearance along housing wall thus, beverage is directed to flow export through said circular clearance.

In addition, by the known a kind of osed top portion package that is used for a kind of material, particularly coffee powder of file DE 10 207 024 579 A1.The thin-wall case that is made of plastics that holds coffee powder for example be truncated cone shape and use base seal in a side.The filling port that is used for coffee powder is used membrane sealed after filling.Be provided with acting by the boiler check valve form, as to cover bottom diaphragm in the inside of housing, said diaphragm is opened flow ports in order in the housing inner chamber, to introduce extract after the bottom is pierced, and content flows out but prevent portion package to use afterwards

By the known a kind of capsule that is used to prepare beverage of WO2007/063411A2, especially for disposable coffee in Vending Machine.This capsule has columniform housing, and said housing has the bottom that has flow channel and outlet.The upper reaches of flow channel are provided with the bearing that the step disk conduct that has the hole is used for flow elernent.The cover sealing of the inlet of housing through being configured for extract.The distortion of mobile connection through the bottom between flow channel and outlet that is used for extract realizes that the mechanical force that the distortion of said bottom occurs when having corresponding pressure by the extract in capsule causes.

Summary of the invention

The objective of the invention is, a kind of capsule is provided, be used to hold a certain amount of material, particularly pulverous coffee, said capsule is suitable for repeating to fill so that repeated use with said material.

The characteristic that the characteristic of said purpose through claim 1 provides realizes.Here beat all advantage is, thus on the bigger area of outlet, realized being used to export flow of beverage passage to be prepared when in coffee capsule, reaching interior pressures of predesignating, and realized the output uniform, that quality is high thus.

In claim 2 to 4, also put down in writing favourable form of implementation, realized with the selectable characteristic of said material thus and be that the taste of confirming according to the user is inclined to the solution that selectable characteristic adapts.

Form of implementation according to

claim

5 and 6 also is favourable, can realize the member that is used for coffee capsule that can make simply thus and realize the use on drinks machine generally.

Also can be employed in another the favourable form of implementation described in the claim 7; Realized the taking off property of cover thus; So that take out cover and fill said material, and also have so that under the situation of other structures that do not have cover, clean coffee capsule.

According in form of implementation described in the claim 8, favourable, in the zone of the outlet of cover, realized being used for the support functions of diaphragm.

According to the described favourable form of implementation of claim 9 to 11, realized the application of said coffee capsule in being directed against the drinks machine of disposable capsule designs.

Through in the favourable form of implementation described in the claim 12, realized a kind of essential elasticity of repeated use and diaphragm that is suitable for using of keeping at field of food.

Form of implementation described in

claim

13 and 14 also is favourable, because realized lasting, being connected of can not unclamping between diaphragm and the metallo-cover thus.

Form of implementation according to claim 15 also is favourable, has realized the lasting connection of main periphery of fringe region of the outlet of cover thus through the material of diaphragm.

At last; Form of implementation by

claim

16 and 17 also is favourable; Thus, under the less situation less of weight, realized corresponding strength, and be used to supply the application of the beverage that the mankind enjoy not have any problem for being used to prepare with being used for the material usage of coffee capsule.

Description of drawings

In order to understand the present invention better, the present invention is elaborated according to following accompanying drawing.

Wherein using very, the figure of simplified schematic illustrates:

Fig. 1 illustrates the cutaway view according to coffee capsule of the present invention, and it comprises housing parts and the cover that is provided with diaphragm;

Fig. 2 illustrates the thin portion view according to the II among Fig. 1;

Fig. 3 illustrates the birds-eye view according to arrow III of the cover of coffee capsule;

Fig. 4 illustrates according to another form of implementation of coffee capsule of the present invention cutaway view by the line IV-IV among Fig. 5;

Fig. 5 illustrates the view according to the arrow V among Fig. 4 of the bottom of coffee capsule.

The specific embodiment

At first should confirm; Identical parts have identical Reference numeral or identical member title differently in the form of implementation of explaining, wherein are included in disclosure in the whole specification sheets and can both reasonably migrate to and have on the same parts of same reference numerals or identical components title.The position terms of in specification sheets, selecting, the accompanying drawing that for example upper and lower, side etc. relates to current explanation or illustrate, and when position change, can reasonably transfer to new position.In addition by shown in the single characteristic or the characteristics combination itself that obtain with described various embodiment constitute independently, creative or according to solution of the present invention.

Data all about number range are interpreted as in this manual; Said number range comprises any and whole part scope in this number range, and for example data 1 to 10 are interpreted as, and comprises all part scopes based on the lower limit 1 and the upper limit 10; In other words; All are to begin more than or equal to 1 lower limit and to end at the part scope that is less than or equal to 10 the upper limit, for example 1 to 1.7 or 3.2 to 8.1, or 5.5 to 10.

At coffee capsule shown in Fig. 1 to 31, said coffee capsule is arranged to and can be repeated to fill with material 2, the for example coffee of powdered, so that repeated use.

Said coffee capsule comprises that the housing parts 1 of preferred deep-draw is inserted in the cover 4 on the housing parts with after weighting substance 2, on filling port 5, overlapping as closure member.

Housing parts 3 is preferably processed by metallic material with cover 4; Particularly by NIRO material according to the international material catalogue; Formation such as AISI304, AISI316 for example; Be lasting thus, and be suitable for common clean method and in field of food, use, and design to the use in the automatic coffee machine known in shape by prior art.

For this reason, housing parts mainly constitutes together with integrally formed bottom 7 through rotational symmetric, truncated cone shape, thin-wall housing periphery wall 6.Said housing periphery wall 6 is configured as columniform periphery wall section 8 around filling port 5.Bottom 7 has the fringe region 10 and circular middle section 11 of the annular of the height 9 that limits coffee capsule, and said middle section is shaped with respect to the direction of fringe region 10 towards housing inner chamber 12.Extend in corresponding to first plane 13 of height 9 with fringe region 10 bottom therewith; And extend in second plane 14 with middle section 11; Form cavity 15 thus; The instrument that pierces through that is used for not being shown specifically is like the instrument that pierces through in order to be provided with for disposable coffee capsule punching so that be formed for the inlet of extract in automatic coffee machine.

Bottom 7 both preferably has on the fringe region 10 of annular, and the through hole 16 that also in middle section 11, distributes for example holes 17, as the inflow entrance 18 that is used for according to the extract 20 shown in the arrow 19.Said extract is supplied to housing inner chamber 12 and is supplied to material 2 thus via bottom 7 and inflow entrance 18 with about 90 ℃ temperature and about pressure of 3 to 6bar in order to prepare beverage, particularly coffee beverage.

The output of extract is carried out through the cover 4 that covers filling port 5 according to arrow 21, as following also to specify.

Cover 4 is drawpieces of plate-like, the top material explained is made up of equally, and have overall diameter 22, and this overall diameter is for example greater than the overall diameter 23 of columniform periphery wall section 8.Cover 4 around edge 24 be configured as the groove shape; On cover 4, form running-on 26 thus with the annular of the axis 25 concentric extensions of coffee capsule 1; This running-on is arranged in the end face 27 that stretches into housing inner chamber 12 ground overlap joint housing parts 3 in the periphery wall section 8, and cover 4 can be fixed on the housing parts 3 with inserting thus.

Dimension limit between the interior diameter 28 of columniform periphery wall section 8 and the overall diameter 29 of columniform running-on 26 is designed for heavy keying fit (Haltesitz), so that enable manual is taken off cover 4 after use.

With in axial 25 the outlet 31 that forms through boring 30 is set in cover with one heart.This outlet 31 covers through diaphragm 32, and said diaphragm is processed, preferably processed by liquid silicon rubber (LSR) by elastomeric material, for example rubber, rubber, firm silicone rubber etc.

Said diaphragm is connected with cover 4 through the fringe region 33 of parcel outlet 31 in covering Shooting Technique (Aufspritzverfahren) securely.In order to realize lasting being connected of diaphragm 32 and cover 4; Be arranged on distribution anchor hole 34 on outlet 31 the circumference in the edge region 33; Thus; Even when in housing inner chamber 12, occurring, also can realize persistence for important corresponding higher interior pressures of the good quality of coffee beverage, said in pressure for example between 8bar to 16bar.

Combine with given in advance elastic behavior, the particularly Shore hardness of material; But also the thickness with diaphragm 32 combines; The quantity and the shape of perforation 35 have been guaranteed; The inlet through bottom 7 18 defeated like extract 20 after, but extract the perforation 35 of diaphragm 32 correspondingly since pressure cause expansion after and before exporting along arrow 21 quilts, build-up pressure in housing inner chamber 12.

Perforation 35 in the diaphragm 32 for example can be boring, slit, cross gap; But the perforation of these forms is expanded in order to realize permeability with the extract pressure-loaded time; And the material elastically deformable property owing to diaphragm 32 returns to its original dimension after pressure-loaded finishes, and this original dimension has been guaranteed by (locking) effect.

In another and itself form of implementation independently in case of necessity of coffee capsule shown in the Figure 4 and 51, wherein for identical parts also adopt with Fig. 1 to 3 in identical Reference numeral or member title.For fear of unnecessary repetition, can referring to or with reference to the detailed explanation among fwd Fig. 1 to 3.

The other form of implementation of this of coffee capsule relates to the bottom 7 of coffee capsule 1, and for all the other situation, housing parts 3 and cover 4 have with in front Fig. 1 to 3 in the identical version of situation of explanation.

Bottom 7 has annular fringe region 10 with one heart with axis 25 in the plane 13 perpendicular to axis 25 orientations.25 the direction towards the axis connects on the edge region 10 through the groove 35 that constitute, in the shaped region 36 of annular that is shaped towards housing inner chamber 12.Formed the cavity 15 that has explained the front thus, the instrument that pierces through that is used for not being shown specifically, be used to use common disposable capsule.The instrument that pierces through that is used to form the hole to be achieved of disposable capsule thus stretches in the cavity 15 through the configuration shown in the bottom 7 in use, particularly stretches in the groove 37, and neither can also can on bottom 7, not occur damaging piercing through appearance damage on the instrument thus.

This annular ring around groove 37 have the degree of depth 38 of for example about 2.0mm to 2.5mm and the middle linear diameter 39 of about 12.0mm to 13.0mm with respect to plane 13, simultaneously the overall diameter 40 of bottom 7 for example is about 22.0mm to 26.0mm.

Middle section 11 edges of bottom 7 are provided with bowl-shape forming section with housing inner chamber 12 opposite directions, and the height 42 of wherein bowl-shape forming section 41 is greater than the degree of depth 38 of groove 37.

Realized the closure to the plane of housing parts 3 with the distance 43 that protrudes in housing inner chamber 12 with respect to plane 13 as rounded face thus, said distance is equivalent to the degree of depth 38 that height 42 deducts groove 37.

Through forming section 41 and according to set height 42, realized being used for the expansion of holding volume of material 2, and can be at the leading dimensions that changes housing periphery wall 6.

In addition; In Fig. 4, can see; In order in drinks machine, to use coffee capsule 1, and the function of using coffee capsule, cover 4 surpasses the overall diameter 23 of housing parts 3 with this boss in the boss 44 of an annular; According to arrow 45 effect diametral loads the time, allow to take place the distortion of spring according to double-head arrow 46.

As now further according to shown in Figure 5, bottom 7 has a plurality of 25 radially borings 47 of setting around the axis, these boring inflow entrances 18 that act on according to arrow 19 supply extracts in the fringe region 10 of annular.In addition, this boring 47 also is arranged in the middle section 11 on 7 plane, bottom.Through holing 47 in the fringe region 10 of annular and the distribution in the middle section 11; Can be very apace and in whole packed space stepless action ground according to arrow 19 to the 2 supply extracts of the material in coffee capsule 1, realized the quality that is in admirable proportion for made extract thus.

These embodiment illustrate the possible embodiment of coffee capsule; Wherein should point out here; The present invention is not limited in each embodiment that illustrates especially; But the opposite various combinations that also can adopt each single embodiment, and these scheme options are owing to the instruction through the technical finesse that provides of the present invention is that those skilled in the art can grasp.In other words, through to shown in make up all embodiments that can imagine that can realize with each details of described each embodiment and be included in protection scope of the present invention.

For up to specification, should point out that at last in order better to understand the structure of coffee capsule, said coffee capsule and component part thereof partly do not meet ratio ground and/or amplification ground and/or illustrate with dwindling.

The purpose of solution of the present invention can draw in specification sheets.

At first, all constitute independently according to solution of the present invention in Fig. 1,2,3,4, the single form of implementation of each shown in 5.Relevant therewith can obtain from the illustrated in detail to these accompanying drawings by the object of the invention and solution.

Reference numerals list

1 coffee capsule

2 materials

3 housing parts

4 covers

5 filling ports

6 housing periphery walls

7 bottoms

8 periphery wall sections

9 height

10 fringe regions

11 middle sections

12 housing inner chambers

13 planes

14 planes

15 cavitys

16 through holes

17 borings

18 inflow entrances

19 arrows

20 extracts

21 arrows

22 overall diameters

23 overall diameters

24 edges

25 axis

26 running-ons

27 end faces

28 interior diameters

29 overall diameters

30 borings

31 outlets

32 barrier films

33 fringe regions

34 anchor holes

35 perforation

36 shaped regions

37 grooves

38 degree of depth

39 mean diameters

40 overall diameters

41 forming sections

42 height

43 distances

44 boss

45 arrows

46 double-head arrows

47 borings

Claims

1. coffee capsule (1); Be suitable in drinks machine, preparing coffee beverage; This coffee capsule has the housing parts (3) of thin-wall, truncated cone shape and is provided with the bottom (7) of the inflow entrance (18) that is used for extract (20), and has the cover (4) that comprises at least one outlet (31), it is characterized in that; The outlet (31) of cover (4) covers with diaphragm (32), and this diaphragm can not be connected with unclamping and have a plurality of perforation (35) with cover (4).

2. coffee capsule according to claim 1 (1) is characterized in that, the perforation (35) in the diaphragm (32) constitutes through boring.

3. coffee capsule according to claim 1 (1) is characterized in that, the perforation (35) in the diaphragm (32) constitutes through the slit.

4. coffee capsule according to claim 1 (1) is characterized in that, the perforation (35) in the diaphragm (32) constitutes through the cross gap structure.

5. coffee capsule according to claim 1 (1); It is characterized in that cover (4) stretches into the running-on (26) of annular on the inner periphery of columniform periphery wall section (8) that ground in the housing inner chamber (12) of housing parts (3) can remain on housing parts (3) with taking off.

6. coffee capsule according to claim 1 (1) is characterized in that, the zone with the outlet (31) that has diaphragm (35) of cover (4) is provided with towards the direction of housing inner chamber (12) with respect to the end face (27) of housing parts (3) with sinking.

7. coffee capsule according to claim 1 (1) is characterized in that, the overall diameter (22) of cover (4) is greater than the overall diameter (23) of housing parts (3).

8. coffee capsule according to claim 1 (1) is characterized in that, the outlet (31) that covers with diaphragm (35) of cover (4) is configured to grill-shaped.

9. coffee capsule according to claim 1 (1) is characterized in that, the fringe region (10) of bottom (7) looping and be shaped and towards the direction of housing inner chamber (12) middle section (11) that separate, circular through cap shape ground.

10. coffee capsule according to claim 1 (1) is characterized in that, bottom (7) between the fringe region (10) of annular and said middle section (11), have around, stretch into the groove (37) in the housing inner chamber (12).

11. coffee capsule according to claim 10 (1) is characterized in that, the middle section (11) of bottom (7) protrudes in the fringe region (10) of annular through forming section bowl-type, that make housing inner chamber (12) expansion.

12., it is characterized in that diaphragm (32) is processed by elastomeric material according to one of aforesaid right requirement described coffee capsule (1), for example process by rubber, rubber, firm silicone rubber, particularly process by liquid silastic (LSR).

13., it is characterized in that diaphragm (32) links to each other with cover (4) according to one of aforesaid right requirement described coffee capsule (1) in the neighboring area of the fringe region (33) of outlet (31).

14. coffee capsule according to claim 13 (1) is characterized in that, cover (4) has the anchor hole (34) that is used for diaphragm (32) around the fringe region (33) of outlet (31).

15., it is characterized in that the thickness of diaphragm (32) is between 0.5mm to 1.5mm according to one of aforesaid right requirement described coffee capsule (1).

16., it is characterized in that the thickness of housing parts (3) and cover (4) is between 0.2mm to 0.5mm according to one of aforesaid right requirement described coffee capsule (1).

17., be characterised in that housing parts (3) and cover (4) are made up of the NIRO material, for example are made up of AISI 304 or AISI 316 according to one of aforesaid right requirement described coffee capsule (1).