JPH0327552Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an instant coffee brewer that uses a pack containing a certain amount of coffee powder.

(Prior Art) Conventionally, as a device of this kind, there is an instant coffee brewer proposed by the present applicant in Japanese Utility Model Publication No. 56-36430. Eventually, a hot water injection part with a concave periphery, a pack made of two pieces of non-woven fabric with coffee powder sealed in its center, and this pack placed on the bottom surface of the hot water injection part. It is comprised of a presser that clamps the periphery to the recessed part of the periphery of the lower bottom surface.

(Problem to be solved by the invention) In the instant coffee brewer mentioned above, the pack is made by enclosing coffee powder in two pieces of non-woven fabric, and unlike the two pieces of non-woven fabric, it does not always have rigidity. Therefore, when setting the pack in the hot water injection part, it may be difficult to place it in the center of the bottom with a through hole.Also, when pouring hot water, the extraction bottom surface of the pack is relatively small, and in addition, this I had a bad feeling that the coffee extraction efficiency would not increase because it was in contact with the lower bottom which had through holes.

(Means for Solving the Problems) In view of the above-mentioned points, the present invention is an improvement of the coffee powder pack and the pouring cylinder in which it is suspended.

That is, coffee powder is put into a bulge-shaped container formed of a rigid non-woven fabric and the side surfaces are tapered inward, and a sheet-like non-woven fabric is placed on top of the bulge-shaped container to seal it, and a step suspends the peripheral seal part of this pack. and a coffee powder pack storage chamber that has a shape almost the same as the bulging and receiving part of the pack, and a presser cylinder that clamps the peripheral seal part of the pack against the stepped part of the pouring cylinder. In particular, the relationship between the coffee powder pack and the pouring water cylinder pack storage chamber is such that the side wall of the pack storage chamber has a bulge having an inner diameter slightly smaller than the outer diameter at the center of the pack. The problem was solved by this configuration.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

The instant coffee brewer of the present invention is composed of a coffee powder pack A, an injection barrel B, and a presser barrel C.

As shown in Fig. 2, the coffee powder pack A is made of a rigid non-woven fabric 2 having a bulging container 1 with tapered inward sides, coffee powder 3 is put into the container 1, and the coffee powder 3 is poured into the container. Sheet-like nonwoven fabric 4
are overlapped and their peripheral edges are sealed 5.
This seal includes heat seal, high frequency seal,
An ultrasonic seal or the like is used.

Note that the receiving portion 1 may not be divided into a side surface portion and a lower surface portion, but may simply have a cross-sectional shape that hangs downward in an arc shape.

Here, the rigid nonwoven fabric is one obtained by heat-embossing long fibers such as polypropylene or polyester, and generally the density of the fibers such as polypropylene or polyester is increased or
Alternatively, the fibers can be made thicker.

The injection barrel B is constructed by injection molding of synthetic resin, etc., and the coffee powder pack A is placed in the lower part of the interior.
A stepped portion 6 on which the peripheral seal portion 5 of the
There is provided a storage chamber 9 for a coffee powder pack A below it, which has a lower bottom 8 of a through hole 7 for dripping and outflow of extracted coffee. It is preferable that the stepped portion 6 be formed in a shape that is inclined downwardly toward the outside in the radial direction. In this case, the stepped portion 6 and the lower end periphery of the presser cylinder C, which will be described later, have sufficient adhesion to keep the coffee powder. The peripheral seal part 5 of the pack A can be clamped to prevent hot water from leaking through the clamping part of the peripheral seal 5.

The storage chamber 9 has almost the same shape as the bulge-shaped accommodating portion 1 of the coffee powder pack A, and the inner wall side 10 of the storage chamber 9 is slightly smaller than the outer diameter at the center of the side surface of the coffee powder pack A. It has a bulging part 11 which becomes the inner diameter, and the center part of the lower base 8 protrudes, and this protruding lower base part supports the lower surface of the container part 1 for the coffee powder pack A, and has a through hole 7. The lower bottom area is configured to maintain a distance from the lower surface of the bulging receptacle part 1 of the coffee powder pack A.

Note that the storage chamber 9 for the coffee powder pack A may have a bottomless structure without the lower bottom 8.

Further, on the inner wall surface above the pouring barrel B, four inwardly directed ribs 15 are provided at equal intervals in the circumferential direction.

The presser cylinder C is made of synthetic resin and injection molded like the pouring cylinder B, and is located inside the pouring cylinder B, and its lower end periphery 12 is made of coffee powder pack A.
The lower end peripheral edge 1
2 to step part 6, add coffee powder pack A
It is adapted to clamp the peripheral seal portion 5 of.
At this time, the upper outer stage 13 of the presser cylinder C comes into contact with the upper end of the pouring cylinder B. Further, on the upper outer wall surface, four outwardly directed ribs 16 are provided at equal intervals in the circumferential direction. And, the rib 15 of the above-mentioned pouring cylinder B and the rib 16 of this presser cylinder C are as follows.
When the presser cylinder C is inserted into the pouring cylinder B and rotated under pressure, the rib 16 engages the lower side of the rib 15, and at this time, the peripheral seal portion 5 of the coffee powder pack A is stepped. 6, and the upper outer stepped portion 13 of the presser cylinder C is
It comes into contact with the upper edge 14 of the pouring cylinder B.

Note that D is a cup for placing the pouring cylinder B on the radial ribs 17 on the outside of the stepped portion 6 thereof.

To use the present invention having the above-described structure, in the state shown in FIG. The coffee that penetrates into the coffee powder 3 inside and is extracted from the coffee powder 3 leaks out from the wide circumferential surface of the container 1 that swells downward, and is stored in the coffee powder pack A below the pouring barrel B. At 9, the through hole 7 of the lower base 8
It falls and flows out and is stored in cup D.

In this case, as shown in FIG. 3, when the coffee powder pack A is filled with coffee powder 3, the side surface of the container 1 of the pack A and the inner wall 10 of the storage chamber 9 of the pack A are Good coffee can be extracted even if there is a gap between the two.

However, as shown in Fig. 4, due to factors such as a reduction in the volume of the coffee powder 3 in the pack A due to vibration during transportation, etc., a void part a may be formed in the upper part of the inside of the pack A. , in such a case,
The hot water that has been poured may flow out from the upper side of pack A as coffee that is not very well extracted.

In this invention, as shown in FIG. This problem was solved by making the outer diameter d' of the coffee powder pack A slightly smaller than the outer diameter d' at the center of the side surface of the bulge-in/out part 1 of the coffee powder pack A.

With such a configuration, even if a gap a is formed in the upper part of the coffee powder pack A, the pack A will be caulked by the bulge 11 of the inner wall 10 of the storage chamber 9, as shown in FIG. , the hot water permeates over a long distance on the side surface of the container 1 of pack A and leaches out.

(Effects of the invention) In the present invention, the coffee powder pack has a swollen accommodating part for coffee powder formed of a rigid non-woven fabric,
After coffee powder is contained, the periphery is sealed with a sheet-like nonwoven fabric, so the entire pack has rigidity and does not lose its shape, increasing its commercial value. Since the entire body is rigid and the accommodating portion bulges downward, when the pack is stored in the pouring cylinder, the peripheral seal portion can always be suspended from the stepped portion in a constant state.

In particular, in the present invention, the coffee powder pack storage chamber of the pouring barrel is configured such that the inner diameter at the bulge on the inner wall thereof is slightly smaller than the outer diameter at the center of the side surface of the bulge-shaped receptacle of the pack. Therefore, even if a void is created in the upper part of the coffee powder in the pack, the penetration distance of the hot water in the side part will be longer, and the extracted coffee will not become thinner in this part, and the bulge in the container part will increase. Combined with the wide exterior surface, it is possible to efficiently extract high-quality coffee.

[Brief explanation of the drawing]

The drawings relate to an embodiment of the present invention, and FIG. 1 is a partially sectional front view of the device in use, and FIG.
The figure is a longitudinal sectional front view of the coffee powder pack, Figures 3 and 4 are partial sectional views showing the operating state, and Figure 5 is an explanatory partial sectional view showing the relationship between the coffee powder pack and its storage chamber. be. Symbol A...coffee powder pack, B...injection cylinder, C...presser tube, D...cup, a...gap, outer diameter of coffee powder pack accommodating part, d'...
Inner diameter of the bulging part of the inner wall of the storage chamber, 1...Inlet part,
2...Rigid nonwoven fabric, 3...Coffee powder, 4...
Sheet-like nonwoven fabric, 5...peripheral seal portion, 6...stepped portion, 7...through hole, 8...bottom, 9...storage chamber, 1
0...Inner wall, 11...Bulging portion, 12...Lower edge, 13...Outer step, 14...Upper edge, 15,
16,17...ribs.

Claims (1)

[Scope of utility model registration request] Coffee powder is put into a bulge-shaped container formed of a rigid non-woven fabric with tapered inward sides, and a coffee powder pack sealed by overlapping a sheet-like non-woven fabric is suspended between the coffee powder pack and the peripheral seal part of the coffee powder pack. For the pouring cylinder consisting of a stepped part and a coffee powder pack storage chamber having almost the same shape as the coffee powder pack's bulging/accommodating part, and for the stepped part of the pouring cylinder,
The coffee powder pack storage chamber of the pouring barrel has an inner wall that is
An instant coffee brewer having a bulge having an inner diameter slightly smaller than the outer diameter at the center of the side of the coffee powder pack.