The present invention relates to a rice wrapper for wrapping a cooked rice, e.g., shaped rice, sushi rice, formed into a conical shape and a wrapped rice which is wrapped with the rice wrapper.
A rice wrapper in which a food sheet, e.g., seaweed, is provided between an outer film and inner films, has been known (see Patent Document 1).
The rice wrapper includes the inner films, a cooked rice (e.g., sushi rice) formed into a conical shape is placed on the inner films, and the rice wrapper is rolled over the cooked rice from both sides so that a hand-rolled sushi is produced.
When eating the wrapped sushi, an outer film is divided into two by pulling a separable part provided to the outer film so as to divide the rice wrapper into two sections (the inner films are previously separated), then the films are removed so that the hand-rolled sushi on which a food sheet is wound on the sushi rice can be produced. Therefore, the sushi wound by the dry food sheet can be eaten deliciously.
More specifically, the rice wrapper disclosed in Japanese Laid-open Patent Publication No. 2014-94017 has the following structure.
Namely, the rice wrapper comprises: the outer film being formed into a rectangular shape and having the band-shaped separable part provided over the entire length in a longitudinal direction so as to divide the outer film into two; the two inner films overlapping to the outer film in a state where the inner films are overlapped to each other but end edge parts of thereof are shifted, the inner films respectively having peripheral edge parts which are fixed to the outer film at proper positions; and a food sheet being provided between the outer film and the inner films, and one side section including one side part of the outer film, which is divided by the separable part, and the inner film connected to the one side part of the outer film and the other side section including the other side part of the outer film, which is divided by the separable part, and another inner film connected to the one side part of the outer film are capable of being separated from each other.
However, in the above described conventional rice wrapper, a part forming one corner part located between one short side and one long side must be placed at an intermediate part of the opposite other long side, when the rice wrapper is formed into the conical shape. Further, an outside rolled part must be placed on a prescribed position of an inside rolled part when rolling the outside rolled part over the inside rolled part. It is very difficult to visually accurately position the members, so they will be displaced, and it is also difficult to form the conical shape having a constant apex angle.
The present invention has been invented to solve the above described problems, and an object of the present invention is to provide a rice wrapper which can be easily formed into a deformed conical shape having a constant apex angle and a wrapped rice wrapped with said rice wrapper.
The rice wrapper of the present invention comprises: an outer film being formed into a rectangular shape and having a band-shaped separable part provided over the entire length in a longitudinal direction so as to divide the outer film into two; two inner films overlapping to the outer film in a state where the inner films are overlapped to each other, and end edge parts of thereof are shifted, the inner films respectively having peripheral edge parts which are fixed to the outer film at proper positions; and a food sheet being provided between the outer film and the inner films, wherein one side section, which includes one side part of the outer film separated by the separable part and one film of the inner film connected to the one side part of the outer film, is separable from other side section, which includes other side part of the outer film and other film of the inner film connected to the other side part of the outer film, when the outer film is separated by the separable part; wherein one corner part between one short side and one long side of the rice wrapper is positioned on a middle part of other long side, the one corner part is wound as an inner winding part, and a part of other short side of the rice wrapper is wound on the inner winding part as an outer winding part and fixed on the inner winding part, thereby the rice wrapper is formed into a deformed cone shape in which a middle part of the one long side is formed as an apex, and wherein said rice wrapper is characterized in that the outer film is provided with a first mark for positioning the part on the other short side which is rolled as the outside rolled part when the deformed conical shape is formed.
In the rice wrapper, the first mark may be a marking line for positioning a side of the part on the other short side which will be rolled as the outside rolled part.
A second mark may be provided to a part of the other short side, which will be rolled as the outside rolled part, and located at a position corresponding to the first mark.
Further, the mark may be provided so as to make the apex angle within an angular range of 42-50 degrees when the rice wrapper is formed into the deformed conical shape and made flat.
Preferably, when the rice wrapper is formed into the deformed conical shape, the part forming the one corner part located between the one short side and the one long side is rolled as the inside rolled part in such a way that the one corner part is placed at an intermediate part of the opposite other long side and that the one long side is made perpendicular to the other long side, and the part on the other short side is rolled over the inside rolled part as the outside rolled part in such a way that a part of the other long side is overlapped to the one short side.
In the rice wrapper, a covering member may be provided to a bottom part of the deformed conical part formed into the deformed conical shape so as to cover the opened bottom part of the deformed conical part by bending the covering member.
A third mark and a fourth mark for positioning, which are used when bending the covering member to cover the opened bottom part of the deformed conical part and fixing the same to the outer film, may be respectively provided to the covering member and the outer film.
The wrapped rice of the present invention is characterized in that a cooked rice formed into a conical shape is accommodated in the above described rice wrapper which has been formed into the deformed conical shape.
By employing the present invention, the rice wrapper, which can be easily formed into the deformed conical shape having a constant apex angle, and the wrapped rice, which is wrapped with said rice wrapper, can be provided.
Preferred embodiments of the present invention will now be described in detail with reference to the attached drawings.
The wrapper 10 comprises: an outer film 14 being formed into a rectangular shape and having a known band-shaped separable part 12 provided over the entire longitudinal length thereof so as to divide the outer film into two; two inner films 16a and 16b overlapping to the outer film 14 in a state where end edge parts of thereof are overlapped, the inner films respectively having peripheral edge parts which are fixed to the outer film 14, at proper positions, by heat welding; and a food sheet 18, e.g., seaweed, 14, being provided between the outer film 14 and the inner films 16a and 16b. Note that, the rectangular shape includes substantially rectangular shapes, e.g., rectangular shape whose corners are cut.
The separable part 12 may be constituted by one cut tape having a prescribed width as shown in
The inner films 16 are fixed to the outer film 14 by heat welding.
The heat-welded parts (the parts indicated by hatched lines in
In the present embodiment, a part of the separable part 12 is connected to the other side section, and the other side section can be separated from the one side section at a time by pulling the separable part 12.
Concretely, in the present embodiment, an end part of one side edge part 12a of the separable part 12 in the width direction (an end of a separation terminating end side in a cutting direction) is an unseparable part 13, in which the outer film 14 cannot be separated. Note that, in case of using the two cut tapes shown in
The other side edge part 12b of the separable part 12a in the width direction is capable of entirely dividing the outer film 14 into two in a longitudinal direction.
To form the unseparable part 13, a fixing tape 15, for example, is adhered from the end part of the one transverse side edge part 12a of the separable part 12 to a part of the outer film 14 located adjacent to the end part. Further, as shown in
A manner for producing a wrapped body 26 (see
Firstly, the sushi rice which has been formed into a conical shape is placed on the inner films 16 of the wrapper 10 in such a way that a top part of the rice is directed to the intermediate part of the one long side 10d of the wrapper 10 (a bottom part is directed to a corner part B) and an angle of the sushi rice is about 45 degrees with respect to the wrapper 10 (see
Next, a triangular part of the wrapper 10 (a part indicated by hatched lines in
Next, a part C of the wrapper 10 (a part indicated by hatched lines in
Then, the outside rolled part 24 is fixed on the inside rolled part 22 by suitable means, e.g., sealing tape 17 (see
As described above, the wrapped body 26 like a hand-rolled sushi, in which the sushi rice formed into the conical shape is accommodated in the wrapper 10 formed into the deformed conical shape, can be produced.
When the wrapper 10 is formed into the deformed conical shape, the separable part 12 of the part of the outer film which becomes the inside rolled part 22 is not covered with the outside rolled part 24 as shown in
As described above, the separable part 12 of the outer film 14 is not covered with the outside rolled part 24 and is exposed over the entire length of the outer film 14, so that the separable part 12 is not interfered by the outside rolled part 24 when dividing the outer film 14 by the separable part 12, the outer film 14 can be easily divided and removed, together with the inner films 16 previously separated, from the sushi rice 20 in a state where the food sheet 18 left on the sushi rice 20.
As described above, in the present embodiment, the end part of the one side edge part 12a of the separable part 12 in the width direction (an end of the terminating position side in the cutting direction) is the unseparable part 13 in which the outer film 14 cannot be completely divided into two.
Therefore, when the separable part 12 is pulled from the separation starting position P toward the separation terminating position Q so as to divide the outer film 14, the outer film 14 is not completely divided at the unseparable part 13 of the one side edge part 12a, but the outer film 14 is divided over the entire length along the other side edge part 12b.
As described above, the outer film 14 is divided into two, over the entire length, by the other side edge part 12b of the separable part 12 in the width direction, but the separable part 12 is connected to the one side part of the divided outer film 14 (the upper part of the outer film) by the unseparable part 13. Therefore, by further pulling the separable part 12, the other side section (the bottom part of the deformed conical shape part) including the one side part of the divided outer film 14 connected to the separable part 12 and the one inner film 16a (the upper film) previously connected to the one side part of the outer film can be easily separated (divided) upward from the one side section (the top part of the deformed conical shape part) including the other side part of the divided outer film 14 and the other inner film 16b previously connected to the other side part of the outer film (i.e., the both side sections can be removed in a state where the food sheet 18 is left on the sushi rice 20).
The detail manner for forming the wrapper 10 into the deformed conical shape will be further explained with reference to
As shown in
Next, as shown in
In the present embodiment, a first mark 32a, which is a spot mark for positioning a part of the other short side 10b to be rolled as the outside rolled part, is provided to a prescribed place in the outer film 14, so that the part of the wrapper 10 (the hatched line part C in
A second mark 33a, which is a spot mark, is provided close to a part of the other short side 10b and will be coincided with the first mark 32a.
The both marks 32a and 33a are coincided with each other (overlap to each other), and then the hatched line part C is folded.
Note that, the first mark 32a may be a straight marking line, and the hatched line part C may be folded in such a way that the one long side 10d is placed along the straight marking line (in this case the second mark 33a may be omitted).
Further, a marking line 32b for positioning the other short side 10b may be provided to a part of the outer film 14, which will correspond to the other short side 10b in the part to be rolled as the outside rolled part 24 (the hatched line part C), as the first mark 32b. By folding the hatched line part C in such a way that the other short side 10b is placed along the straight marking line 32b, the hatched line part C can be folded at a correct position.
Note that, the both marks 32a and 32b may be provided as the first marks.
The marks 31, 32a, 32b and 33a may be formed on the outer film 14 by suitable means, e.g., printing.
By correctly positioning the corresponding parts in accordance with the first mark 32a and/or the first mark 32b, the top of the corner part A is necessarily corresponded to the fifth mark 31, so the fifth mark 51 is not essential. In other word, the first mark 32a and/or the first mark 32b is provided to such position.
As described above, the wrapper 10 can be formed into the deformed conical shape by rolling the outside rolled part over the inside rolled part and adhering the sealing tape 17 to a suitable position or heat-welding a suitable position.
To easily understand, the wrapper 10 is flatly folded as shown in
In case of flatly forming the wrapper, as described above, the preferable apex angle is about 45 degrees so as to improve the external appearance, but the apex angle of the flatly formed wrapper may be within an angle range of 42-50 degrees.
If the apex angle of the flatly formed wrapper is within 42-50 degrees, the one side section and the other side section, which have been divided, can be pulled out, with no difficulty, in a state where the food sheet 18 is left on the wrapped rice, e.g., sushi rice.
If the apex angle of the flatly formed wrapper, which has the deformed conical shape, is more than 50 degrees, actions of pulling the separable part 12 in a transverse direction and a longitudinal direction must be large, so it is difficult to open the wrapped body. On the other hand, if the apex angle of the flatly formed wrapper is less than 42 degrees, an overlapped part of the inside rolled part and the outside rolled part is large, it is difficult to divide the wrapper into the one side section and the other side section.
If the apex angle is other than 45 degrees, the one long side 10d cannot be made perpendicular to the other long side 10c. Further, the other long side 10c cannot overlap to the one short side 10a.
However, in the present embodiment, the wrapper having the flat deformed conical shape, whose apex angle is within the range of 42-50 degrees, can be accurately and easily produced by providing the marks 32a, 32b, 33a, etc. at the predetermined positions.
Successively, it is preferable that the two inner films 16 are a wide film piece 16a and a narrow film piece 16b which is narrower than the wide film piece 16a as shown in
Further, a corner of the food sheet 18 located close to the corner part A may be cut as shown in
As described above, the inner films 16 are the wide film piece 16a and the narrow film piece 16b, so that an upper part of the outer film 14 (a part including the corner part B, see
A width of the food sheet 18 is reduced toward the bottom part, so a lower part of the divided outer film 14 and the narrow film piece 16b of the inner films 16, which is fixed to the lower part, are hardly pulled out downward, but the narrow film piece 16b of the inner films 16 is made narrow, so the film piece can be easily peeled from the sushi rice 20 and easily pulled out.
Especially, if a part of the narrow film piece 16b, which corresponds to a part of the short side 10a in the corner part A shown in
To easily understand, in the above described embodiment, the wrapped body 26 is produced by rolling the wrapper 10 over the conical-shaped sushi rice 20. However, in actual case of producing the wrapped body 26, it is preferable that the wrapper 10 is previously formed into the deformed conical shape shown in
The wrappers 10 may be previously formed into the deformed conical shape by hands or an apparatus, it is preferable that the above described marks 31, 32a and 32b are provided so as to accurately position each of the parts, so that the deformed conical shape can be accurately formed.
In an embodiment shown in
In each of embodiments shown in
Namely, the covering member 28 is provided to a part constituting a bottom side of the deformed conical part of the wrapper so that the opened bottom part of the deformed conical part can be covered.
In this case, as shown in
Number | Date | Country | Kind |
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2016-161690 | Aug 2016 | JP | national |
This application is a Divisional of copending application Ser. No. 16/084,701, filed on Sep. 13, 2018, which is the National Phase under 35 U.S.C. § 371 of International Application No. PCT/JP2017/019834, filed on May 29, 2017, which claims priority under 35 U.S.C. § 119(a) to Application No. 2016-161690, filed in Japan on Aug. 22, 2016, all of which are hereby expressly incorporated by reference into the present application.
Number | Name | Date | Kind |
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5636495 | Weder et al. | Jun 1997 | A |
6604674 | Bowman | Aug 2003 | B1 |
20060054521 | Tchira | Mar 2006 | A1 |
20110256270 | Fujimori | Oct 2011 | A1 |
Number | Date | Country |
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2000-118583 | Apr 2000 | JP |
2001-10688 | Jan 2001 | JP |
3138850 | Jan 2008 | JP |
2014-94017 | May 2014 | JP |
WO 2015190968 | Dec 2015 | WO |
Entry |
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U.S. Appl. No. 16/084,701, filed Sep. 13, 2018. |
Extended European Search Report dated Jun. 28, 2019, for corresponding European Application No. 17843137.5. |
International Search Report for PCT/JP2017/019834 dated Jul. 11, 2017. |
Number | Date | Country | |
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20220185555 A1 | Jun 2022 | US |
Number | Date | Country | |
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Parent | 16084701 | US | |
Child | 17681208 | US |