JPH0687234U - Liquid food bottle - Google Patents

Abstract

(57) [Summary] [Purpose] The volume of bottles containing various beverages and liquid seasonings can be compressed according to the decrease in contents. [Structure] A bottle material is formed as a flexible material into a bellows shape, and the bellows portion is held in a compressed state.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a bottle for retail or household storage containing a beverage or a liquid seasoning. As these bottles, glass and plastic bottles and metal cans are used. Of these, the present invention relates to plastic bottles.

[0002]

[Prior art]

 Most of the above-mentioned bottles are for one person's amount of liquid, but there are also large bottles that contain a relatively large amount of liquid and are divided into several servings or consumed several times. When drinking such large bottled carbonated drinks at a place, it may be divided into a large number of people at one time, but some of them are kept for those who come late, or some of them are consumed and left over. May be consumed on other days. In this way, when a part of the contents of the bottle is consumed and the rest is kept in a loose state, there is a problem that the carbonic acid in the beverage is removed and the taste is deteriorated. In addition, in the case of seasonings such as shoyu, it is usual to divide them into small bottles and use them, but there is a problem that the surface of the shoyu stored in the large bottles becomes moldy. Further, storing the bottle with the reduced content as it is is a waste of storage space, and there is the problem that it is bulky when transporting or discarding an empty bottle.

[0003]

[Problems to be solved by the device]

 The present invention intends to suppress the deterioration of the preservability of liquid foods stored in a large bottle after opening the bottle from the physical direction. It also aims to improve the efficiency of storage space and reduce the bulk of waste bottles.

[0004]

[Means for Solving the Problems]

 The volume of the bottle was made variable so that the bottle volume could be compressed as the content was consumed. As a concrete structure, the bottle is formed into a bellows shape and a fitting for holding the bellows in a compressed state is provided. The bottom of the bottle is recessed so that the head of the bottle can be inserted, making it possible to stack the bottles.

[0005]

[Action]

 Carbonic acid in carbonated beverages is mainly caused by a decrease in pressure, but even when the carbonic acid concentration in the liquid is supersaturated (the external pressure is low), the carbonic acid concentration in the liquid reaches an equilibrium state with respect to the external pressure. It takes time until the equilibrium state is reached as the partial pressure increases, depending on the partial pressure of carbon dioxide on the liquid surface. That is, the storability is improved. Considering a carbonated beverage that has consumed 500 cc in a bottle containing 1 liter and has an empty volume of 500 cc and a liquid volume of 500 cc, assuming that the entire empty volume is carbon dioxide, consider the case of 1 atm. , 500 cc of carbon dioxide gas comes out as gas from the liquid part of 500 cc. The solubility of carbon dioxide gas in water can be regarded as that of dissolving carbon dioxide gas in the same volume as that of water under a certain pressure of carbon dioxide gas. Assuming that the equilibrium pressure of carbonic acid gas of a carbonated beverage is 2 atm, initially 1 liter of carbon dioxide gas was dissolved in a 500 cc beverage at 1 air pressure. , The carbonate concentration in the beverage will be half of the initial level.

Now, assuming that a 1 liter bottle is compressed to 600 cc, the empty volume is 100 cc, and at first, 100 cc of carbon dioxide gas in a gas state of 1 atm comes out from the beverage. The volume is reduced to 1/5 of that when it is unchanged. Even if the pressure in the bottle is set to 2 atm, 400 cc of carbon dioxide will be released by converting it to 1 atm, and since the saturated pressure was originally 2 atm and 1000 cc of 1 atm was included, the equilibrium pressure when 400 cc was released. Is 2 atm or less. In other words, it will be balanced at the place where about 200 cc of carbon dioxide gas escapes, and the amount of carbon dioxide escape will be less than half that in the case of 1 liter bottle volume. Moreover, the time until the equilibrium state is reached becomes longer as the difference between the saturated pressure of carbon dioxide on the liquid side and the partial pressure of carbon dioxide gas on the liquid surface becomes smaller, and the smaller the volume of empty space on the liquid surface, the smaller the amount of carbon dioxide gas evaporated. Since a relatively high partial pressure of carbon dioxide is obtained, it takes longer to reach equilibrium and storage stability is improved.

Considering the problem of mold, oxygen is required for the growth of mold, and if the volume of the empty space in the bottle is reduced, the amount of oxygen is reduced accordingly, and the growth of mold is suppressed. . Since oxygen is related to the deterioration of taste in not only mold but also fruit juice, keeping the empty volume in the bottle small generally improves the shelf life of liquid foods.

[0008]

【Example】

 1 and 2 show an embodiment of the present invention. 1 shows the original state of the bin, and FIG. 2 shows the compressed state. The bottle body 1 is molded from a flexible thermoplastic resin such as polypropylene, and the body is formed in a bellows shape. A product label is attached to the middle cylindrical part of the body. The bottle neck is sealed with crown 2. The bottle body 1 is wrapped in a transparent heat-shrinkable film tube 3, and the upper and lower parts of the tube are heat-shrinked. 4 is the liquid level of the contents. FIG. 2 shows the state after the content liquid has been consumed to some extent. A commercially available stopper 5 with a stopper is fitted in the mouth of the bottle. In the bottle body 1, the bellows are compressed so that the liquid level 4 of the contents comes to the side of the shoulder of the bottle, and the rubber band 6 is fitted into the uppermost groove of the bellows from above the film barrel 3 to form the film barrel 3. Squeeze into the top groove of this bellows. By doing so, the stretching of the bellows of the bottle body 1 is prevented by the tensile stress of the film cylinder 3, and the compressed volume of the bottle body is maintained.

FIG. 3 shows another embodiment of the present invention. In the above-described embodiment, the means for holding the bottle body in the compressed state is the transparent film tube that wraps the bottle body 1, but in this embodiment, the hakama 7 molded of an elastic material. This hakama has a shape as shown in FIG. 4, and is molded by plastic, and the upper ring 71 is provided with bent portions 71a that are bent outward at several places. Because of the curved portion 71a, the ring portion 71 can elastically extend the circumference. Therefore, when molding, it is possible to remove the mold without splitting the mold. This hakama is fitted in the lower part of the bottle body 1 as shown in FIG. The inner diameter of the ring 71 is set so that the trough diameter of the bellows groove of the bottle body 1 is loosely fitted and the outer diameter of the crest does not come off. When the convex portion of the bellows above this ring is pushed so as to be pushed below the ring, the ring 71 expands in diameter by the bent portion 71a, and the convex portion of the bellows is pushed under the ring in this way. The bellows can then be compressed and pushed into the inside. The shape of the hakama 7 is not limited to the above example, and may be, for example, the shape shown in FIG.

FIG. 6 shows still another embodiment of the means for holding the bottle body 1 in a compressed state, which is a cracked elastic ring 8. The inner diameter of the ring 8 is set in the same manner as the above example, and since the ring 81 is provided with the split 81, it can be elastically expanded and fitted into the bottle body 1 from the side of the bottle body 1. The upper and lower rings 82 of this ring 8 fit into the groove of the bellows of the bottle body to hold the compressed bellows between the upper and lower rings.

FIG. 7 shows still another embodiment of the present invention, in which the bellows of the bottle body 1 is formed in a spiral shape, and a collar which is a means for holding the bottle body in a compressed state is provided with an inward flange at the rim of the hakama 9. 91 is formed, and this brim 91 is made into a spiral shape. When you turn this hakama, the bellows bellows are taken into the hakama by the action of a screw and compressed into the hakama.

Each of the above-described embodiments can be applied whether the liquid content of the bottle has an internal pressure such as a carbonated beverage or one without an internal pressure such as fruit juice. In the case of liquid without internal pressure, in order to keep the bellows in a compressed state, the bellows can be kept in a compressed state simply by shrinking the bellows and sealing the bottle. FIG. 8 shows an embodiment particularly suitable for such a case. The bottle body 1 is wrapped with a tube 3 of a heat-shrinkable transparent film. This cylinder is provided with perforations 31 in a circumferential shape for each fixed amount of the bottle content liquid, for example, every 100 cc, and two perforations 32 are provided adjacent to each other in the longitudinal direction. Each time the content liquid is used, the part of the cylinder 3 sandwiched by the vertical perforation 32 is released up to the position of the horizontal perforation 31 above the liquid level of the residual liquid in the cylinder 3, The upper part of the cylinder 3 is separated along the line. When the upper bottle body portion is compressed from the cylinder 3 and the container is tightly closed, the compressed state is maintained. In this embodiment, the perforations 31 on the side of the cylinder 3 also serve as a scale indicating the amount of liquid in the bottle.

The above-mentioned examples mainly consider the efficacy of the liquid food at the final consumption stage. The following example also considers the convenience of the distribution stage, that is, by compressing and stacking empty bottles before filling the contents to eliminate bulkiness during transportation and to save storage space. Is. In the embodiment of FIG. 9, the bottom of the bottle is recessed into a spherical shape, and when the bottles are stacked, the mouth portion 12 of the bottle head is placed in the recess 11 of the bottom as shown in FIG. FIG. 10 shows another example in which a recess 11 is formed on the bottom of the bottle along one diameter so that the mouth 12 of the lower bottle can be inserted. In the example of Fig. 11, the shoulder portion of the bottle is formed as an inclined surface, and the mouth is provided so as to project so that the amount of protrusion of the bottle mouth from the upper surface of the bottle is small and the bottom of the bottle to be overlaid is inward from the outer circumference. It is a part that is recessed toward.

FIG. 12A shows still another embodiment of stacking bins, in which the upper and lower stacked bins are joined by a joint component 13, and FIG. 12B shows the joint parts. It has a cylindrical shape with a part cut out vertically and has inward and downward edges formed to fit the bellows of the upper and lower bottles to join the upper and lower bottles. For the shape of the bottom of the bottle, each of the embodiments described in the preceding paragraph can be applied. Since this connecting part is partly cut vertically, it is possible to insert the inward edge into the folds of the upper and lower bellows from the side of the bottle by forcibly unfolding the cut part when fitting. This connecting part may be made into a square as shown in FIG. In this way, the load does not collapse when the multiple bins that are compressed in the axial direction and connected are horizontally stacked as shown in FIG. In FIG. 15, one shelf 14 is provided in the connecting part 13, and a notch 15 is made in this shelf so that the mouth 12 of the bottle can be inserted therein. It is prevented.

[0015]

[Effect of device]

 According to the present invention, since the bottle body is accordion-like and can be compressed, the storability of the liquid food is improved as described above, and the bottle can be compressed as the liquid food is consumed. The storage space for bottles and other items can be made more efficient, and empty bottles can be handled in the compressed state at the distribution stage, which is convenient because it does not take up much space, and when empty bins are discarded. Since it can be thrown away and discarded, it is also advantageous in waste collection work.

[Brief description of drawings]

FIG. 1 is a side view of an original shape of an embodiment of the present invention.

FIG. 2 is a side view of the above embodiment in a compressed state.

FIG. 3 is a side view of another embodiment of the present invention.

FIG. 4 is a perspective view of a hakama used in the above embodiment.

FIG. 5 is a perspective view of another embodiment in the shape of a hakama.

FIG. 6 is a perspective view of another embodiment of the means for keeping the bottle body in a compressed state.

FIG. 7 is a side view of an embodiment in which the bellows of the bottle body is formed into a spiral shape.

FIG. 8 is a side view of still another embodiment of the present invention.

FIG. 9 is a side view of another embodiment of the present invention.

FIG. 10 is a side view of another embodiment of the present invention.

FIG. 11 is a side view of another embodiment of the present invention.

FIG. 12 is a side view of another embodiment of the present invention.

FIG. 13 is a perspective view of another embodiment of the present invention.

FIG. 14 is a perspective view showing a state where the bottles are stacked.

FIG. 15 is a perspective view of another embodiment of the coupling component.

[Explanation of symbols]

 1 bottle body 2 crown 3 film tube 4 liquid level 5 stopper with stopper 6 rubber band 7 bottle hakama 80% ring

Claims (4)

[Scope of utility model registration request] 1. A bottle for liquid foods, wherein a part or the whole of a bottle body made of a flexible material is formed into a bellows shape and can be compressed. 2. A bottle for a liquid food product, which is formed by forming a part or the whole of a bottle body made of a flexible material into a bellows shape and fitting a holding means for holding the bellows-like part in a compressed state. . 3. The bottle for liquid foods according to claim 1, wherein the bottle bottom is recessed so that the head of another bottle can be housed. 4. The upper and lower rims are inwardly facing edges, and are joined to the folds of the bellows-like portions of the bottles that are stacked one above the other by means of a tubular coupling part that is partially cut in the longitudinal direction. 4. The liquid food bottle according to claim 1, 2 or 3, wherein the upper and lower lips of the component are engaged with each other so that the upper and lower bottles are joined together.