JP2583503Y2 - Canned rice balls - Google Patents

Description

[Detailed description of the invention]

[0001]

[Industrial application] This invention relates to the canning of rice balls.
In particular, the present invention relates to canned rice balls that can be heated from cans and supplied from a vending machine or the like.

[0002]

2. Description of the Related Art In recent years, as nuclear families and living alone have increased, and the number of people per household has decreased, cooking that saves labor and cost is preferred. Along with this, there is a remarkable abundance of items such as retort foods, frozen foods, and ready-to-eat prepared foods in supermarkets and the like. Rice balls that can be easily eaten that meet the tastes of Japanese people are indispensable, and are recently marketed as cooked foods and frozen foods.

[0003] However, rice balls as cooked foods are sold as they are or in a state of being packaged in cellophane or the like, and can be easily eaten. However, they are not kept for days and are sold only for at most one to two days from the date of manufacture. Can not. In addition, rice balls as frozen foods are prepared by freezing rice balls after cooking, packaging and selling them, and although they are kept on the sun, they must be thawed in a microwave oven, etc. Not only lacks but also has a drawback of losing the flavor at the time of production due to the operation of freezing and thawing.

[0004]

[Problems to be Solved by the Invention] The present invention has been made to overcome these drawbacks, and it is an object of the present invention to provide a canned rice ball that can be kept on a day and can be easily eaten regardless of time and place. I do.

[0005]

Means for Solving the Problems The present inventors have conceived that the above-mentioned problems can be solved if the onigiri can be made into a canned form, and as a result of intensive studies, completed the present invention.

That is, in the present invention, the rice ball housed in the middle cylinder is sealed in the can, and the middle cylinder has a cylinder portion for holding the rice ball, and a can opening side where at least a part of the outer periphery abuts the inner surface of the can. Ri Do a flange portion provided in the outer of said tubular portion
About canned rice ball characterized that you have a space is formed between the peripheral surface and the inner surface of the can.

In the present invention, the rice ball housed in the middle cylinder is sealed in a can, and the middle cylinder has a cylinder portion for accommodating the rice ball and an outer peripheral side surface which contacts the inner surface of the can at a plurality of locations. ,
In addition, the present invention relates to canned rice balls, wherein a space is formed between one outer peripheral side surface of the middle cylinder and an outer peripheral side surface adjacent thereto.

In the present invention, the middle cylinder has a cylindrical shape, a polygonal pillar shape or a shape having a vertical groove around it, and includes a cylindrical body having a flange or a cylindrical body with a bottom as appropriate. The material is not particularly limited as long as it can be held and stored in a can and is harmless to the human body.
Paper, metal (eg, aluminum, iron, and the like) are preferable in terms of ease of molding and the like, and of course, a combination of them may be used. In addition, the canned rice ball of the present invention may be subjected to heat sterilization at the time of manufacture or may be heated together with the can so that consumers can eat the rice ball in a warm state, so in this case, the middle cylinder has heat resistance. It is preferred to have. Therefore, when the middle cylinder is made of plastic, polypropylene, polyethylene terephthalate,
It is desirable to use polystyrene and polyamide. When the middle cylinder has a flange, the cylinder and the flange may be formed integrally, or may be formed separately and then integrated. Further, a small hole or a slit may be provided in the middle cylinder to improve heat transfer.

In addition, it is preferable that the tubular portion of the middle cylinder has a shape conforming to the shape of the rice ball to be stored, from the viewpoint of fixing and maintaining the shape of the rice ball in the can. Here, the “shape conforming to the shape of the rice ball” includes a shape that follows the shape of the rice ball, a shape that fixes the rice ball and prevents movement, and the like. In addition, with respect to the fixation and shape retention of the rice ball, in the present invention, the middle cylinder is provided with a flange portion that comes into contact with the inner surface of the can, or a relatively hard material, a polygonal cylinder middle cylinder adapted to the shape of the rice ball, The purpose is more reliably achieved because a part of the middle cylinder comes in contact with the inner surface of the can.

[0010] Only one of the above-mentioned middle cylinders may be housed in a can, or a plurality of middle cylinders each having a bottomed cylindrical body may be stacked. In both of these cases, each middle tube may contain one or more rice balls.

The rice balls to be packed in the cans of the rice balls of the present invention include all types of cooked rice balls, but grilled rice balls are particularly preferred in terms of keeping the sun, maintaining the flavor, and easiness of eating. One onigiri in a can
However, even if there is more than one,
The rice ball may be a rice ball,
Packaged individually or in groups
After packaging with a material, it may be stored in a middle cylinder. Also, multiple
When the rice balls are packaged as they are or are packaged together and housed in one middle cylinder, a gap may be provided between the rice balls. Here, any ordinary food packaging materials
Can be used, for example, paper, cellophane, metal foil (eg,
For example, aluminum foil) or plastic fill
Or a combination thereof (eg, one or both sides of paper)
Use a separate paper, aluminum foil or plastic
Etc.). Ma
In addition, the section of the film mentioned above as the packaging material
Is used.

The type of can used is not particularly limited, and the size of the rice balls to be stored can be selected from those used for normal canning.
It is selected according to the size and number, but the ease of eating rice balls
In consideration of supply from vending machines,
Diameter 68.0 mm, height 101.5 mm, volume 316.9
ml) is preferred. Further, the flaps may be a conventional type of opening with a can opener, but in terms of consumer use and ease, type the entire lid pull ring is supplied with open at one time, the so-called pull-top type preferable.
This pull-top type lid does not require a can opener.
Therefore, it is particularly suitable for supply from vending machines.

Further, by storing a food protective agent, for example, an oxygen scavenger or an alcohol generator in a space formed by the outer periphery of the cylindrical portion, the flange portion and the inner surface of the can, propagation of microorganisms in the can is prevented. (Oxygen absorbers are effective against aerobic microorganisms, and alcohol generators are effective against anaerobic microorganisms). This food protectant is usually used in a form stored in a bag. Also, in this case,
When the rice ball is taken out after the can is opened, the food protective agent is suppressed by the flange portion, so that the rice ball does not jump out and the accidental eating is prevented. In addition, it goes without saying that the food protective agent can be stored in the space between the outer periphery of the cylindrical portion without the flange portion and the inner surface of the can.

Further, in the can of rice balls according to the present invention, if an auxiliary article, for example, a towel, a toothpick or chopsticks, is stored in the space between the outer periphery of the cylinder and the inner surface of the can so that it can be taken out when the can is opened. Use can be made more convenient.

[0015] In addition to the onigiri, other supplementary foods such as pickles, seaweed (baked seaweed, taste seaweed, etc.), dried fish (seaweed seaweed, etc.) and snacks (potato chips, etc.) are included in the canned rice ball of the present invention. May be sealed. These supplements may be sealed separately in a bag and stored in the space between the outer circumference of the cylinder and the inner surface of the can, or may be stored together with the rice ball in the middle cylinder, or in the middle cylinder containing the rice ball. It may be stored in a different middle cylinder.

The canned rice balls of the present invention can be manufactured by any of the following methods (a) and (b). Of course, these methods may be combined. (A) Manufacturing method via heat sterilization Put the rice balls in a medium cylinder and put them in a can (at this time, put the above-mentioned food protective agent, supplementary articles, supplementary foods, etc. in predetermined places if necessary), and cover And heat sterilized to cool. The heating conditions are appropriately determined according to the size of the can, the number of rice balls to be stored, and the like. However, in view of maintaining the shape of the rice balls, it is preferable to heat sterilize at a relatively low temperature for a long time. (B) Manufacturing method in a sterile room All operations up to sealing are performed in a sterile room. Put the rice balls in a sterilized middle tube, put them in a sterilized can (at this time, put the above-mentioned food protective agent, supplementary articles and supplementary food in a predetermined place if necessary), and finally wind the lid Tighten.

[0017]

[Function] In the canned rice ball of the present invention, the rice ball is stored in a middle cylinder, and a flange is provided on the middle cylinder.
Alternatively, by forming the middle cylinder so as to be in contact with the inner surface of the can, the movement of the rice ball in the can is prevented, and the rice ball does not lose its shape due to vibration or impact when the can is transported or moved. This shape collapse can be more reliably prevented by making the cylindrical portion of the middle cylinder a shape that matches the shape of the rice ball. In particular, when the product is stored in a vending machine called a vendor and sold, the product is dropped from a high place to an outlet at the time of purchase, so this impact is considerable. The rice balls stored in the cylinder do not lose their shape even when subjected to the impact.

The flange is provided on the opening side of the can, and a part of its outer periphery is in contact with the inner surface of the can. When taking out the rice ball, the middle cylinder does not pop out and only the rice ball can be taken out. When there is no flange portion, the middle cylinder has an outer peripheral side surface in contact with the inner surface of the can, so that only the rice balls can be similarly taken out.

There is a space between the cylindrical portion and the inner surface of the can. When the can is heated, heat from the outside is transmitted to the whole rice ball through the space, so that the rice ball is appropriately warmed.

[0020] The cans are sterilized by heat sterilization or operation in a sterile room, so that the days can be kept well. Further, by putting an oxygen scavenger or the like in the can, longer-term storage becomes possible.

[0021]

Next, embodiments of the present invention will be described with reference to the drawings, but the present invention is not limited to these embodiments.

FIG. 1 is an exploded perspective view showing an embodiment of a canned rice ball according to the present invention, in which three rice balls 1 are composed of a cylindrical portion 2 and a flange portion 3. It is housed in a cylinder 4, filled in a can 5, and sealed with a can lid 5 'by a conventional method. The production of the cans of this example, including the production of rice balls, was all performed in a sterile room, and the middle cylinder 4, the can 5, and the can lid 5 'were all sterilized. However, the rice balls were prepared in a relatively clean room. And can be manufactured by ordinary heat sterilization.
The filling of the middle cylinder 4 containing the rice balls 1 into the can 5 is performed from the bottom of the can. Even if the bottom of the can is finally wound, the filling is performed from the side of the can lid and finally the can lid 5 'is wound. You can also tighten it.

Although three rice balls are sealed with three triangular baked rice balls, it goes without saying that the shape, type and number of the rice balls can be selected as appropriate. The middle cylinder 4 is formed by integrally molding the cylinder portion 2 and the flange portion 3 from polypropylene having excellent heat resistance. The cylinder portion 2 has a length approximately equal to the height of the can 5 and is used for the rice balls 1 to be stored. The shape according to the form, that is, a substantially triangular prism shape, the flange portion 3 was provided on the can opening side, and the outer periphery thereof was made into a shape such that the outer periphery thereof was in contact with the inner surface of the can 5 at three points at substantially equal intervals. The flange 3 may be partially omitted. Further, a paper, a cellophane, a plastic film or the like may be interposed between the rice balls.

In such a can, when the can was opened, the flange 3 was restrained by the uncut portion of the can lid 5 ', and only the rice ball 1 could be taken out by inclining the can. Onigiri 1 did not lose its shape due to vibration or impact during transportation or the like, retained its shape before filling, and lasted for a considerable period of time. Furthermore, the heat transfer to the onigiri was good, and the onigiri could be heated to the temperature at which it could be eaten by heating with a normal vending machine.

Embodiment 2: Canned with oxygen scavenger FIG. 2 is a partially cutaway perspective view showing an example in which the oxygen scavenger 6 is stored in a can together with the rice ball 1. The oxygen absorber 6 is a commercially available oxygen absorber (for example, Ageless (trade name) manufactured by Mitsubishi Gas Chemical Co., Ltd.), and an air gap surrounded by the cylinder portion 2 of the middle cylinder 4, the flange portion 3, and the inner surface of the can 5. Stored in. The same procedure as in Example 1 was carried out except that the oxygen scavenger 6 was used, but the can lasted much longer than that of Example 1. When the rice ball 1 was taken out, the oxygen absorber 6 was blocked by the flange portion 3 and did not jump out together with the rice ball.

Example 3: Canned rice with toothpick and toothpick FIG. 3 shows a toothpick 7 and toothpick 8 in a substantially triangular prism-shaped middle cylinder 4.
FIG. 4 is a plan view showing the embodiment in which the can is opened in a space formed between the outer peripheral side surface and the inner surface of the can.
In this case, the middle cylinder 4 is made of a relatively hard material,
Is formed such that each corner of the substantially triangular prism contacts the inner surface of the can. That is, three spaces are formed by the cylindrical portion 2 and the inner surface of the can. The towel 7 and the toothpick 8 are accommodated in the space between the cylindrical portion 2 and the inner surface of the can. As in the second embodiment, a deoxidizer or the like can be stored in other spaces. Auxiliary articles related to eating other rice balls (eg, chopsticks)
May be stored.

In the case of the can according to this embodiment, since the wiping cloth 7 and the toothpick 8 are housed together with the rice ball 1,
You can eat rice balls sanitarily. In addition, each corner of the middle cylinder 4 is suppressed by the uncut portion 5 ″ of the lid, and the middle cylinder does not pop out.

Example 4: Canning of Onigiri with Aluminum Top Can FIG. 4 shows a so-called aluminum top type can lid 9 as an opening lid of the can 5, which is provided with a pull ring 10 and can open the entire lid at once. It is a perspective view showing an example. In this case, a can opener is not required and the operation is easier. Moreover,
In the case of the can lid 9 of the above-mentioned type, the uncut portion 5 ″ is smooth without unevenness, so that the rice balls can be more easily taken out.

Embodiment 5: Canning Using Middle Tube of Different Shape FIG. 5 shows another example of using a middle tube having no flange. As described above, the middle cylinder 4 has a cylindrical body having the outer peripheral side surface portion 4 'in contact with the inner surface of the can at a plurality of locations (three locations in this example), and having a vertical groove 4 "formed therearound. Good.
The groove 4 ″ forms a storage space for a deoxidizer, a towel, and the like, and prevents the rice ball 1 from moving in the middle cylinder. Also, the outer peripheral side surface portion of the middle cylinder 4 which is in contact with the inner surface of the can is suppressed by the uncut lid 5 ", so that the middle cylinder does not pop out.

Embodiment 6: Canning using a plurality of middle cylinders FIG. 6 shows an example in which rice balls are housed in individual middle cylinders. Onigiris 1, each of which was placed in a respective middle cylinder 4, were stacked in a predetermined number (three in this case) in a can 5, tightly wound with a lid 5 ′, sterilized by heating, and cooled.

Each of the middle cylinders 4 is made of polyethylene terephthalate having excellent strength, heat resistance, fragrance retention and the like, and the cylinder 2 and the flange 3 are integrally formed.
The shape conforms to the shape of the rice ball 1 to be accommodated, that is, a substantially triangular prism shape and has a bottom, the flange portion 3 is provided on the can opening side, and the outer periphery thereof is in a shape such that it contacts the inner surface of the can 5 at three points at substantially equal intervals. . Also in this case, the flange portion 3 may be partially omitted, and the height when all the middle cylinders 4 containing the rice balls 1 are stacked is almost equal to the height of the can 5.

In such a can of onigiri, since the onigiri are stored in individual middle tubes one by one, the shape can be more reliably maintained, and the rice balls can be subjected to vibration or impact during transportation or supply from a vending machine. The shape can be further suppressed, and when eating, rice balls can be taken out one by one. Also, the rice balls can be stored in the can more easily.

Embodiment 7: Canned product containing a plurality of middle cylinders following rice balls In the sixth embodiment, the middle cylinder 4 has the flange 3, but the present invention is not limited to this. Instead, for example, a differently shaped middle cylinder shown in the following embodiment is used in the same manner as in the sixth embodiment, and has the same effect.

FIG. 7 shows a middle cylinder 4 having a substantially triangular prism shape following the shape of a rice ball and having a bottom formed so that each corner comes into contact with the inner surface of the can.

Example 8: A can containing a plurality of middle cylinders in a shape for fixing rice balls. FIG. 8 has an outer peripheral side surface portion 4 'abutting on the inner surface of the can at three places at substantially equal intervals, and a vertical direction around the periphery. The middle cylinder 4 in which the groove 4 ″ is formed is shown. The three grooves 4 '' prevent the rice ball (not shown) from moving in the middle cylinder.

[0036]

[Effect of the Invention] As described in detail above, the canned rice balls of the present invention are sterilized and sealed by heat sterilization or treatment in a sterile room, so that the cooked rice balls can be stored as they are. Despite the fact, the day keeping is good, and the use of a deoxidizer or the like further improves the day keeping. Also, unlike the frozen food, thawing operation in a microwave oven or the like is not required, the food can be eaten immediately after opening the can, and since the operation such as freezing and thawing is not performed, the flavor is not spoiled. Therefore, it has a use as not only a daily meal but also an emergency meal. Moreover, the rice balls do not lose their shape due to vibration or impact during transportation or movement, and the rice balls can be easily taken out after the can is opened. Furthermore, the rice balls can be easily heated with good heat efficiency by heating as they are.

Further, since the canned rice balls of the present invention have the above-mentioned effects, they are suitable for vending machines which supply the rice balls with the cans heated so that the rice balls can be heated to the temperature of eating.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of one embodiment (Example 1) of the present invention.

FIG. 2 is a partially cutaway perspective view of another embodiment (Example 2) of the present invention.

FIG. 3 is a plan view of another embodiment (Example 3) of the present invention.

FIG. 4 is a perspective view of still another embodiment (Example 4) of the present invention.

FIG. 5 is a plan view of still another embodiment (Example 5) of the present invention.

FIG. 6 is an exploded perspective view of one embodiment (Example 6) of a can of rice balls according to the present invention in which a plurality of middle cylinders are accommodated.

FIG. 7 is a perspective view of one embodiment (Embodiment 7) of the middle cylinder of the present invention.

FIG. 8 is a perspective view of another embodiment (Eighth Embodiment) of the middle cylinder of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Onigiri 2 Tube part 3 Flange part 4 Middle tube 5 Can 6 Oxygen absorber 7 Teppeki 8 Toothpick

Claims (2)

(57) [Scope of request for utility model registration] 1. A rice ball housed in a middle cylinder is sealed in a can. The middle cylinder has a tubular portion for holding the rice ball and a flange provided on the can opening side where at least a part of the outer periphery is in contact with the inner surface of the can. Ri Do and a section, between the outer peripheral surface and the inner surface of the can of the cylindrical portion
Canned rice ball characterized that you have a space is formed. 2. A rice ball housed in a middle cylinder is sealed in a can. The middle cylinder has a cylinder portion for accommodating a rice ball and an outer peripheral side surface abutting on the inner surface of the can at a plurality of locations. A canned rice ball, wherein a space is formed between one outer peripheral side surface of the cylinder and an outer peripheral side surface adjacent thereto.