Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
  • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
  • B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
  • B65D85/804—Disposable containers or packages with contents which are mixed, infused or dissolved in situ, i.e. without having been previously removed from the package
  • B65D85/8043—Packages adapted to allow liquid to pass through the contents
  • B65D85/8052—Details of the outlet

Definitions

• the invention relates to a coffee capsule, as described in the preamble of claim 1 ben.
• a, intended for single use coffee capsule for receiving a predetermined quantity of ground coffee which consists of three housing parts with an approximately cylindrical, filled with coffee powder, a bottom part having housing middle part with a, an inflow opening for a Sealing part containing extractive fluid is sealed.
• the bottom part has at least one throughflow opening for the extract via which it is fed to a further housing part which faces the throughflow opening and has a tubular inlet channel as well as flow channels and a discharge opening.
• This inlet channel is covered with a sealing membrane, to prevent the ingress of contaminants into the interior of the coffee capsule and releases a passage for the extract at a corresponding medium pressure.
• a capsule for receiving a quantity of a product intended for a beverage preparation by supplying a fluidic medium into the capsule is known.
• This is designed as a frusto-conical housing with integrally formed bottom having an outflow opening.
• the outflow opening is preceded by a deformable sealing disc which bears sealingly against the housing wall.
• the housing is sealed with a cover disc.
• an inflow opening for feeding the medium into the housing interior is created by mechanically cutting through the cover disk.
• the bottom part overlapping a membrane acting in the manner of a flap valve which, after piercing the bottom part for introducing an extraction fluid into the housing interior flow openings are free, however, prevents leakage of a content after use of the sachet.
• a capsule for a beverage preparation, in particular coffee for single use in machines is known.
• This has a cylindrical housing with a bottom with flow channels and outlet openings.
• the flow channels is provided with holes provided with a support disk as a support for a filter element.
• the housing is sealed with a cover part designed for the inlet of an extraction fluid.
• a flow connection for the extract between the flow channels and the outlet openings is achieved by a deformation of the soil due to a mechanical force at a corresponding pressure of the extraction fluid in the capsule.
• the object of the invention is to provide a capsule for receiving a quantity of a substance, in particular powdery coffee, which is suitable for refilling with the substance for multiple use.
• an application of the coffee capsule is achieved in beverage vending machines that are designed for the use of disposable capsules.
• FIG. 1 shows a coffee capsule according to the invention, consisting of a housing part and a cover part provided with a membrane cut;
• FIG. 2 shows a detail section according to II in FIG. 1;
• Fig. 3 is a plan view of the lid part of the coffee capsule according to arrow III;
• FIG. 4 shows another embodiment of the coffee capsule according to the invention, cut along the lines IV - IV in Fig. 5.
• FIG. 5 is a view of the bottom part of the coffee capsule according to arrow V in Fig. 4th
• FIGS. 1 to 3 show a coffee capsule 1 which is intended to be refilled for multiple use with a pulverized substance 2, in particular coffee.
• This consists of a preferably deep-drawn housing part 3 and a cover part 4 which can be attached thereto as a closure after being filled with the substance 2 on a filling opening 5.
• the housing part 3 and the cover part 4 are preferably made of a metallic material, in particular a NIRO material, e.g. AISI 304, AISI 316 etc., formed according to the international material designation and thus durable and suitable for common cleaning processes and use in the food industry and designed for use in state-of-the-art automatic coffee machines.
• a metallic material in particular a NIRO material, e.g. AISI 304, AISI 316 etc., formed according to the international material designation and thus durable and suitable for common cleaning processes and use in the food industry and designed for use in state-of-the-art automatic coffee machines.
• the housing part is essentially formed by a rotationally symmetrical, truncated cone-shaped, thin-walled housing jacket 6 with integrally formed bottom parts 7.
• the filling opening 5 comprising the housing shell 6 is formed as a cylindrical shell portion 8.
• the bottom part 7 has an annular edge region 10 delimiting a height 9 of the coffee capsule and a circular center region 11, which is formed in the direction of a housing interior 12 opposite to the edge region 10.
• the bottom part extends with the edge region 10 in a first plane 13 corresponding to the height 9 and the center region 11 in a second plane 14, whereby a free space 15 is provided for piercing tools, not shown, as often in coffee machines for punching disposable Coffee capsules are provided for creating inlet openings for an extraction liquid.
• the bottom part 7 preferably has both in the annular edge region 10 as well as distributed in the center region 11 openings 16, for example holes 17, as inflow 18 for - according to arrows 19 - shown extraction fluid 20.
• This is for preparing a drink, in particular a coffee beverage with a temperature of about 90 ° C and at a pressure of about 3 to 6 bar via the bottom part 7 and the inflow 18 to the housing interior 12 and thus the substance 2 is supplied.
• the cover part 4 is a disk-shaped drawn part, consisting of the material also described above with an outer diameter 22, for example, is greater than an outer diameter 23 of the cylindrical shell portion 8.
• a peripheral edge 24 of the cover part 4 is formed groove-shaped, whereby the lid part. 4 a concentric with a central axis 25 of the coffee capsule 1 extending, annular projection 26 is formed, which is intended to overlap an end face 27 of the housing part 3 in the shell portion 8 in the housing interior 12 protruding and thus the cover part 4, inserted on the housing part to fix.
• a dimensional tolerance between an inner diameter 28 of the cylindrical shell section 8 and an outer diameter 29 of the cylindrical extension 26 is designed for a retaining seat in order to be able to manually remove the cover part 4 after use.
• an outlet opening 31 formed by a bore 30 is provided in the cover part.
• This outlet opening 31 is defined by a membrane 32 of an elastomeric material, e.g. Rubber, rubber, solid silicone, etc., preferably liquid silicone (LSR), covered.
• LSR liquid silicone
• Number and shape of the perforations 35 ensure, in conjunction with the predetermined elastic properties of the material, in particular the Shore hardness, but also the thickness of the membrane 32 a pressure build-up in the housing interior 12 before feeding the extraction fluid 20 through the inlet openings 18 of the bottom part 7 before there is a release of the extract - arrows 21 - after a corresponding, pressure-related expansion of the perforations 35 of the membrane 32 comes. This process is decisive for the quality of the prepared drink.
• the perforations 35 in the membrane 32 may be, for example, holes, slots, cross slots, which are extended when pressurized with the extract to achieve the permeability and after completion of the pressurization, due to the elastic see deformability of the material of the membrane 32, their original output , which ensures a retention effect, take again.
• FIGS. 4 and 5 show a further embodiment of the coffee capsule 1, which is possibly independent of itself, wherein the same reference numerals or component designations are used again for the same parts as in the preceding FIGS. 1 to 3.
• reference numerals or component designations are used again for the same parts as in the preceding FIGS. 1 to 3.
• This further embodiment of the coffee capsule 1 relates to the bottom part 7 of the coffee capsule 1 in otherwise identical embodiment of the housing part 3 and the cover part 4, as already described in the preceding FIGS. 1 to 3.
• the bottom part 7 has concentric with the central axis 25 in the plane 13, which is directed perpendicular to the central axis 25, the annular edge portion 10. In the direction of the center axis 25, the edge region 10 adjoins a groove 35 formed by a deformation in the direction of the housing interior 12 in an annular deformation region 36.
• the previously described free space 15 is formed for the piercing tools not shown for the use of common disposable capsules. These piercing tools for the perforations of disposable capsules to be carried out thus penetrate into the free space 15, in particular groove 37, in the application due to the design of the base part 7, and thus damage the piercing tools or the bottom part 7.
• This annular circumferential groove 37 has, for example, a depth 38 of approximately 2.0 mm to 2.5 mm with respect to the plane 13, and an average diameter 39 of approximately 12.0 mm to 13.0 mm, for example an outer diameter 40 of the bottom part 7 of about 22.0 mm to 26.0 mm.
• the center region 11 of the bottom part 7 is provided with a cup-shaped formation in a direction opposite the housing interior 12 opposite direction, wherein a height 42 of the cup-shaped formation 41 is greater than the depth 38 of the groove 37th
• a planar end of the housing part 3 is achieved as a circular area in a plane 13 against the housing interior 12 superior distance 43, which corresponds to the difference from the height 42 minus the depth 38 of the groove 37.
• the bottom part 7 in the annular edge region 10 has a multiplicity of bores 47 arranged radially around the central axis 25 and serving as inflow openings 18 for the supply of the extraction fluid 19. Furthermore, such holes 47 are provided in the planar center region 11 of the bottom part 7.
• FIGS. 1, 2, 3; 4, 5 embodiments form the subject of independent solutions according to the invention.
• the relevant objects and solutions according to the invention can be found in the detailed descriptions of these figures.
• Housing jacket 46 double arrow

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Apparatus For Making Beverages (AREA)

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Publications (1)

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Cited By (6)

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Citations (5)

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• 2009
  • 2009-09-28 AT AT0152609A patent/AT508887B1/de not_active IP Right Cessation
• 2010
  • 2010-09-28 WO PCT/AT2010/000353 patent/WO2011035360A1/de active Application Filing
  • 2010-09-28 CN CN2010800431110A patent/CN102596757A/zh active Pending
  • 2010-09-28 EP EP10776257.7A patent/EP2483177B1/de not_active Not-in-force

Patent Citations (5)

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