Summary of the invention
Invent problem to be solved
When described extraction filter is used for American-style coffee machine, it is known that as shown in Figure 7 by water injection needle 5 from cap 11 pierce through toFilter interior injects the structure of hot water.Fig. 7 (a) illustrates the state before piercing through with water injection needle 5, and (b) illustrates and sting with water injection needle 5Wear and catch the state extracting coffee with the cup 100 being placed in below extraction filter 1.
But, American-style coffee machine, in addition to described structure, also has the structure pierced through without water injection needle.Such as, just like Figure 43The shown water filling portion formed by elastomer from the pressing of the top of cap and the mode of water filling.
In the case of which, because in described known extraction filter, the first sheet element and the second sheet elementOnly bonding at circumference, so the hot water flowed out from coffee machine water filling portion diffuses to circumference, thus existence can not be effectivelyProblem from the hole portion water filling of central authorities.
The present invention proposes in view of the above problems, it is an object of the invention to, it is provided that a kind of beverage is with extracting filtrationDevice, even not using the American-style coffee machine of water injection needle, it is also possible to efficiently to filter interior water filling.
The technical scheme of solution problem
The beverage extraction filter of the present invention proposes, described beverage extraction filter for solving described problemIt is made up of the cap in the filter portion accommodating hobby beverage with the writing board shape being installed on top, described filter portion, described capBeing made up of the laminated structure of the first sheet element and the second sheet element, described first sheet element is positioned at side, filter portion and notHaving water penetration, described second sheet element lamination and has water penetration on described first sheet element, at described firstMaterial component be centrally formed the hole portion by hot water, it is characterised in that described first sheet element and described second sheet material structurePart is with the bonding state lamination of the surrounding of circumference and described hole portion.
Effect, the effect of the beverage extraction filter with described structure is illustrated.From the top water filling of capTime, via having the second sheet element water filling of water penetration, because described first sheet element and described second sheet element existThe surrounding in hole portion is the most glued, so hot water will not be from described bonding site to external diffusion.Therefore, hot water flows to hole efficientlyPortion, and can be efficiently to filter interior water filling.
In the present invention, described hole portion is preferably formed as tongue piece shape by the line of cut of described regulation shape, because extracting intermittent feverThe pressure of water, the hole portion of described tongue piece shape deforms downwards and makes hot water pass through.
Because being formed tongue piece shape by line of cut, so in the manufacturing process forming hole portion, discarded sheet will not be produced.CauseThis, it is possible to reduce the risk being mixed into foreign body in manufacturing process.
Second sheet element of the present invention is preferably formed by non-woven fabrics.Hot water is made to lead to by using non-woven fabrics to be not only able toCross, but also hot water temperature can be kept.
Detailed description of the invention
The structure of the beverage extraction filter of present embodiment is illustrated.Described extraction filter is used for American coffeeCoffee machine, it is possible to be installed on American-style coffee machine.
＜ extracts structure ＞ of filter
Fig. 1 is the figure illustrating the section shape extracting filter.Fig. 1 is the decomposition illustrating the structure member extracting filterAxonometric chart.Extract filter 1 by accommodating the filter portion 10 of coffee powder (being equivalent to have a liking for beverage) and being arranged on described filtrationThe cap 11 of the writing board shape on top, portion 10 is constituted.
Cap 11 is by being positioned at side, filter portion 10 and not having the first sheet element 12 of water penetration and lamination describedOn one sheet element 12 and have water penetration the second sheet element 13 double-decker constitute.Filter portion 10 is by non-woven fabrics shapeBecome, it is preferable that formed by spun-bonded non-woven fabrics.It is formed with spatial portion S on top, filter portion 10.By described spatial portion S, make because ofHot water and the coffee powder that expands are detained with hot water and contact such that it is able to sufficiently extract.
First sheet element 12 is formed by one or more layers resin film.Second sheet element 13 is by spun-bonded non-woven fabrics etc.Non-woven fabrics is formed.Filter portion 10 is formed flange 10a, utilizes this flange 10a bonding with cap 11.
It addition, the first sheet element 12 and the second sheet element 13 are in circumference A (with reference to the oblique line portion of Fig. 2) and hole portionThe surrounding C of 12a bonds together.Around C (bonding region) be shaped so as to there is the ring-type of Rack.Around C's is interiorFootpath is set as that the external diameter than hole portion 12a is big.The inner side of the inner side of circumference A and the space B in the outside of surrounding C and surrounding CSpace D is the most glued.Therefore, it is possible to by required minimal bonding, by the first sheet element 12 and the second sheet materialComponent 13 is bonding.
The hole portion 12a being centrally formed tongue piece shape at the first sheet element 12.Described hole portion 12a is in manufacturing processIn, it is possible to formed by applying line of cut CL on the first sheet element 12.Line of cut CL can not also be applied, and by punchingHole forms hole portion 12a, but, in said case, little discarded sheet can be produced, thus become the trouble causing foreign body to be mixed intoReason.Therefore, by forming above-mentioned line of cut CL, it is possible to prevent the generation of discarded sheet such that it is able to prevent above-mentioned troublesomeResult from possible trouble.The sizableness of hole portion 12a is in a diameter of 3mm.
It addition, be formed with the handle portion being prone to hold respectively on the first sheet element 12 and the second sheet element 1312c、13a.But, handle portion 12c, 13a it is not necessary to.
For line of cut CL, in the present embodiment for C-shaped (being equivalent to regulation shape), but it also is able to use V-arrangement etc.Suitable shape.
For the material of the first sheet element 12, it is possible to by such as CPP (un-stretched polypropylene) thin film, (thickness is 50 μM) single layer structure, the three-decker (gross thickness is 50 μm) of PE (polyethylene)-PP (polypropylene)-PE thin film, PP-PP-PP are thinThe three-deckers (gross thickness is 50 μm) of film etc. are formed.Consider that the quality of extracting solution, cementability, intensity etc. can select suitablyMaterial.
As the material constituting filter portion 10, it is possible to use such as Asahi Chemical Industry of Japan to weave the spunbond of Co., Ltd.Y25200.As the material constituting the second sheet element 13, it is possible to use such as Ohki Co., Ltd. of JapanOkiron CEW-30。
Structure ＞ of ＜ American-style coffee machine
Then, figure 3 illustrates the structure of the American-style coffee machine 5 of the beverage extraction filter using present embodiment.It should be noted that the structure of American-style coffee machine 5 is the example illustrated, but it is not limited thereto.American-style coffee machine 5 has main bodyPortion 50, open-close lid 51 by the relative main part opening and closing of hinge 52.Additionally, be provided with use in the lower section of the front face side of main part 50Mounting portion 54 in mounting coffee cup etc..Upper aspect at main part 50 is provided with for loading the receiving portion 53 extracting filter 1.Inner face side at open-close lid 51 is provided with water filling portion 4.Hot water is supplied from this water filling portion 4 to extraction filter 1.It should be noted thatIt is provided with the heater etc. for the water in not shown water tank and water tank is heated at American-style coffee machine 5.
Structure ＞ in ＜ water filling portion
Fig. 4 is the profile of the structure illustrating water filling portion 4, is the structure of the various piece illustrating water filling portion 4 and extractedThe figure of the size relationship between the cap 11 of filter 1.Water filling portion 4 is formed by elastomers such as rubber.Central part shape in water filling portion 4Become to have the hot water channel 4a passed through for supplying hot water.Hot water channel 4a toroidal concentric around be formed with the first ring portion 4bSecond ring portion 4c little with aperture ratio the first ring portion 4.First ring portion 4b and the second ring portion 4c are downwardly projecting shape, and firstRing portion 4b is more protruded (such as 0.4mm) than the second ring portion 4c.
Identical with the internal diameter d3 of water filling portion 4a in the outside diameter d 4 of the hole portion 12a of the first sheet element 12 formation, or substantiallyIdentical (d3=d4:d3 ≈ d4), for 3mm.Around the internal diameter d5 of C is 9mm, and the outside diameter d 2 of the second ring portion 4c is 9.4mm.Therefore,It is set as d2 ＞ d5.Around the outside diameter d 6 of C is 16.6mm, and the outside diameter d 1 of the first ring portion 4b is 14.6mm.Therefore, d6 ＞ it is set asd1.It should be noted that above numerical value is only a wherein example, the invention is not limited in described numerical value.
Because the first ring portion 4b and the second ring portion 4c constitute double wall, note it is possible to be reliably prevented from hot water channel 4aThe hot water entered spills to the outside in water filling portion 4 and spreads.
Action ＞ during ＜ coffee extract
Then, illustrate that using the beverage of the American-style coffee machine 5 of Fig. 3 and present embodiment to extract filters with reference to Fig. 5 and Fig. 6Device 1 extracts action during coffee.
First, the receiving portion 53 at American-style coffee machine 5 is installed and is extracted filter 1.Secondly, open-close lid 51 is closed.Fig. 5 illustratesClose the state of lid, be first ring portion 4b in water filling portion 4 figure that is closely crimped on the state of the upper surface of the second sheet element 13.Fig. 6 is the figure of the state illustrating the hot water channel 4a supply hot water from water filling portion 4.
Hot water spreads at the inner space of the second ring portion 4c, injects the inside extracting filter 1 via hole portion 12a.Due toHot water will not be too many towards radial diffusion, it is possible to efficiently inject hot water.Additionally, because the inner side of the pressure C around of hot water,Hot water spatial diffusion between the first sheet element 12 and the second sheet element 13, but will not leak to the more lateral of C aroundGo out and spread.Therefore, it is possible to efficiently inject hot water.Because of the injection pressure of hot water, the hole portion 12 on tongue piece deform and downwards underHang down.
＜ other embodiments ＞
In the present embodiment, though by coffee for being illustrated as a example by hobby beverage, but the invention is not limited in this,It is readily adaptable for use in other hobby beverages such as black tea, green tea.
The present invention extracts the American-style coffee machine using water injection needle that filter also is able to be applicable to as shown in Figure 7.
Can use for bonding first sheet element 12 and the bonding agent of the second sheet element 13 or adhering method and appointThe bonding agent of meaning or adhering method.Such as thermo-compressed can be utilized to carry out bonding.
Description of reference numerals
A: circumference
B: space
C: around
CL: line of cut
D: space
1: beverage extraction filter
10: filter portion
11: cap
12: the first sheet elements
12A: hole portion
13: the second sheet elements
4: water filling portion
4A: hot water channel
4B: the first ring portion
4C: the second ring portion
5: water injection needle