Fruit bag

Abstract

To prevent the surface of a fruit from coming into close contact with the inner surface of a fruit bag and to prevent sunburn. [Solution] A mesh lining is inserted inside the outer bag, and the outer bag is made of a transparent or semi-transparent synthetic resin sheet with a thickness of 0.03 to 0.06 mm that is thick enough to prevent holes from being made when beetles bite into it and that deforms according to the force of the wind when the wind blows, and has an opening at the upper edge. The lining is a mesh that is placed inside the outer bag and prevents the inner surface of the outer bag from coming into close contact with the surface of the fruit, and retains moisture generated by the fruit itself. If at least one slit of a predetermined length is provided with a narrow cut on the outer edge and lower edge of the outer bag, the moisture can be discharged outside the fruit bag.

Description

[Technical field]

[0001] The present invention relates to a fruit bag used for bagging fruit, and more particularly to a fruit bag made of a synthetic resin sheet. [Background technology]

[0002] In fruit cultivation, if fruits are left to ripen, they will often rot for various reasons. This phenomenon is particularly noticeable in soft fruits such as figs. Most of the rot is caused by bacteria transmitted by insects or underground bacteria that are splashed up by rain and attached to the leaves. To prevent this, pesticide spraying and bagging are carried out, but consumers are somewhat reluctant to spray pesticides because it involves the use of pesticides.

[0003] Considering the above circumstances, prior art that attempts to prevent insect and pest damage can be found in patent and non-patent literature.

[0004] The fruit bag disclosed in Patent Document 1 (JP Patent Publication 2009-65907) is made up of an outer layer, a middle water-absorbing layer, and an inner layer with numerous holes inside, allowing moisture generated inside to escape to the outside.

[0005] In Patent Document 2 (JP Patent Publication 2013-233091 A), in order to prevent the insect's proboscis from reaching the outer skin of the fruit, a "part" is inserted between the fruit bag and the fruit to ensure a certain distance between the fruit bag and the fruit. Although the actual nature of the "part" is unclear, it can be considered as a kind of spacer.

[0006] In Patent Document 3 (Japanese Utility Model Application Laid-Open Publication No. 64-56646), a breathable lining is placed inside a breathable outer bag. The lining has many micropores with a diameter of 50 to 100 μm to ensure breathability. The upper part of the outer bag is perforated, and the outer bag can be cut off from the perforation at an appropriate time to allow sunlight to reach the fruit.

[0007] Furthermore, in Patent Document 4 (JP Patent Publication 2019-201573 A), the applicant of the present application has proposed a fruit bag made of a synthetic resin sheet that is resistant to insects and bacteria and does not require spraying with pesticides. That is, the bag is equipped with a strap at a predetermined width in the center of the upper side width direction, the volume of the body is larger than the fruit, and the diameter of the opening corresponding to the strap is large enough to hold young fruit. [Prior art documents] [Patent documents]

[0008] [Patent Document 1] JP 2009-65907 A [Patent Document 2] JP 2013-233091 A [Patent Document 3] Japanese Utility Model Application Publication No. 64-56646 [Patent Document 4] JP 2019-201573 A [Patent Document 5] Patent No. 4237141 [Non-patent literature]

[0009] [Non-Patent Document 1] National Agriculture and Food Research Organization (http: / / www.naro.affrc.go.jp / org / karc / seika / kyushu_seika / 2006 / 2006175.html) Summary of the Invention [Problem to be solved by the invention]

[0010] Pesticides are usually sprayed on fruits during their development or at designated times before harvest to kill pathogens, but this does not eliminate consumers' fears about pesticides, and although the apparent product value may increase, it does not alleviate psychological anxiety.

[0011] Bagging reduces the infestation of insects and bugs, and reduces the chance of the above-mentioned bacteria attaching to the fruit, resulting in fewer fruits rotting in a short period of time. However, this is not complete, and spraying with pesticides is essential to compensate for this imperfection.

[0012] The applicant of the present application has disclosed in Patent Document 4 that spraying of pesticides is unnecessary if young fruits are bagged. Since young fruits need to be exposed to sunlight during their development, transparent or semi-transparent materials (synthetic resin materials) are used for the bags.

[0013] However, if transparent or translucent materials are used for the bags, the inside of the bags will become hot and dry under the summer sun. fruit However, this can lead to sunburn. To prevent this, people usually use an umbrella to block direct sunlight.

[0014] In addition, the surface is made of smooth synthetic resin sheet. fruit If the surfaces of the bags stick together, spoilage bacteria will grow in that area, making it impossible to harvest, or causing further spoilage after harvest. This sticking is caused by the large amount of water vapor that the fruit gives off during its development. In other words, the water vapor that the fruit gives off during its development turns into water droplets on the inner walls of the bags as shown in Figure 13, and the surface tension acts to cause the water vapor to drop from the fruit to the inner walls of the bags. fruit The inner surface of the bag will be in close contact with the surface.

[0015] To avoid this, for example, in the prior art patent document 5, a large number of fine holes are made in the material. In this way, the moisture released by the fruit is quickly discharged outside the bag, but on the other hand, the above-mentioned problem of "sunburn" occurs.

[0016] As will be explained below, the present invention involves bagging the young fruits, which necessitates the use of transparent or translucent materials. However, Patent Documents 1, 2 and 3 are based on the premise that the fruits will be bagged after they have ripened, and therefore have structures that do not place emphasis on translucency, and are therefore not applicable to the present application.

[0017] The present invention has been proposed in consideration of the above-mentioned conventional circumstances, and aims to prevent the surface of the fruit from sticking to the inner surface of the bag by bagging the fruit from the time it is young, and to leave the fruit as it is until harvest without "sunburning," and to eliminate the need for spraying of pesticides. fruit Bags are required. [Means for solving the problem]

[0018] The present invention is configured to place a mesh lining inside the outer bag.

[0019] The outer bag is made of a transparent or translucent synthetic resin sheet having a thickness of 0.03 to 0.06 mm so that it will not be punctured by beetles when they bite into it, and which is deformed in response to the force of the wind when it blows, and has an opening at the upper edge.

[0020] The lining is a mesh that is placed inside the outer bag to prevent the inner surface of the outer bag from coming into close contact with the surface of the fruit and to retain moisture that is generated by the fruit itself.

[0021] On the outer side and the bottom side of the outer bag, At least one cut of a given length from the outer periphery inwards When the moisture is removed, fruit It can be discharged outside the bag. Effect of the Invention

[0022] By inserting the inner lining of the net body, the outer bag and fruit The inner lining thread (line) is sandwiched between the two and does not come into contact with the outer bag. fruit The occurrence of adhesion to the surface is prevented. fruit The moisture released by the bag is retained for a long time by the mesh, preventing the bag from drying out too much. The moisture is gradually released to the outside of the outer bag through the slits. [Brief description of the drawings]

[0023] [Figure 1] FIG. 1 is a perspective view showing the appearance of a fruit bag according to the present invention. [Diagram 2] FIG. 1 is a perspective view showing a sealing unit according to a first embodiment of the present invention. [Diagram 3] FIG. 1 is a flow chart showing a procedure for using a fruit bag using the sealing unit according to the first embodiment of the present invention. [Figure 4] FIG. 4 is a diagram showing a continuation of the procedure in FIG. [Diagram 5] 1A-1D are diagrams showing the procedure for opening the fruit bag of the present invention. [Figure 6] FIG. 11 is a perspective view showing a sealing unit according to a second embodiment. [Figure 7] FIG. 11 is a flow chart showing a procedure for using a fruit bag using the sealing unit of the second embodiment of the present invention. [Figure 8] FIG. 8 is a diagram showing the continuation of FIG. [Figure 9] FIG. 1 is a diagram showing an example of a conventional fruit bag. [Figure 10] Photographs showing examples and comparative examples for figs. [Figure 11] Photographs showing an example and a comparative example regarding peaches. [Figure 12] 1 is a photograph showing an example and a comparative example regarding apples. [Figure 13] This is a photograph showing an example of the "sweat" that fruit produces. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0024] <Prerequisites> The bacteria that cause fruit rot are attached to the surface of the flower or young fruit to some extent, and grow when ants and thrips gather on the fruit. Also, as explained below, the bacteria that cause fruit rot are attached to the surface of the flower or young fruit to some extent, and grow when ants and thrips gather on the fruit. fruit The applicant of the present application has demonstrated by carrying out the invention disclosed in JP 2019-201573 A that bagging can suppress the growth of putrefactive bacteria and make food less likely to spoil. fruit When the young fruits are bagged, the temperature inside the bags becomes hot and dry on sunny days, causing 10% to 20% of the bagged young fruits to become sunburned.

[0025] This "sunburn" occurs when the inside of the bag becomes dry, so it is important to keep the inside of the bag from becoming too dry.

[0026] On the other hand, fruits release a lot of moisture ("sweat") during their growth. According to the applicant's observations, the "sweat" itself does not affect the fruit, but when the fruit is bagged using a synthetic resin material, the "sweat" causes the fruit to stick to the synthetic resin material, and rot progresses in the areas of contact.

[0027] Therefore, in the present invention, a mesh is placed inside the transparent or translucent outer bag. The first function of the mesh is to prevent the fruit from coming into close contact with the inner bag. The second function is to retain the "sweat" released by the fruit. The moisture released by the fruit is initially in the form of very fine water vapor, which adheres to the inner surface of the outer bag, but as the amount gradually accumulates, it turns into water droplets (see Figure 13). If there was no mesh lining, the water droplets would gradually become heavy and accumulate at the bottom of the bag, or, if there are water holes, they would be discharged to the outside through them.

[0028] However, with the net of the present invention, the water droplets in the sections of the net are caught by the net and do not fall to the bottom, but are retained for a long time. Even if there is sunlight in this state, the water will evaporate and the heat of evaporation will be taken up within the bag, so the inside of the bag will not become extremely hot or dry.

[0029] <Basic structure> FIG. 1 shows a fruit bag of the present invention.

[0030] A mesh lining 2 is inserted inside a transparent or semi-transparent outer bag 1 made of a synthetic resin such as vinyl or nylon, and further a sealing unit is provided to seal the opening at the top end of the outer bag.

[0031] <Outer bag> The outer bag 1 must be strong enough (thick enough) to prevent thrips and other pests from gnawing at it and creating holes in it, but if it is too thick it will be impossible to seal the opening, which will be described later, so the thickness must be within the range of 0.03 to 0.06 mm. This thickness is based on polyethylene, but is roughly the same for other resins.

[0032] The upper end edge 11a of the outer bag 1 forms an opening 12, and the left and right side edges 11b, 11c and the lower end edge 11d of the outer bag are sealed. In addition, a plurality of drainage slits 16 are formed on the outer periphery of the outer bag. The slits 16 are simply With scissors It is a narrow cut that is made to a specified depth and length (for example, about 1 cm) inside. Because it is narrow, pests such as thrips cannot enter, but water inside can drain out.

[0033] <Outer bag thickness> As mentioned above, the outer bag 1 must be at least 0.03 mm thick so that it will not be torn even if an insect bites into it, but there are two problems associated with the thickness of the outer bag. One is "sealing" and the other is "wind."

[0034] By using the sealing unit 30 described below, sealing between the fruit stalk C and the outer bag 1 can be achieved, but if the outer bag 1 is thick, the sealing portion (between the fruit stalk and the outer bag) will lack flexibility, making the above-mentioned sealing impossible and allowing rainwater or insects to enter.

[0035] Next, if the thickness of the outer bag 1 exceeds a certain value, the rigidity becomes large and the bag becomes more susceptible to wind, which causes the fruit to fall. In order to ensure that the bag is soft enough to deflect the wind and deform its shape when the wind blows, the upper limit of the thickness is limited.

[0036] When the thickness is within the above range, the opening is sufficiently sealed, and even if a strong wind blows, the shape can be flexibly changed in response to the wind (even taking into account the lining 2 described below). In this respect, in the prior art documents 1 and 3, the thickness (thickness of outer bag 1 + thickness of lining 2) is too large, making it easier to catch the wind and extremely increasing the probability of fruit dropping.

[0037] <Lining> The lining 2 is specifically made of a synthetic resin net.

[0038] The mesh is composed of threads (0.1 to 0.3 mm) thick enough to ensure that the inner surface of the outer bag 1 is not in close contact with the surface of the fruit when the fruit is inside, and mesh of a specified size (each side is approximately 3 to 10 mm).

[0039] However, there is a relative relationship between the thickness of the thread and the size of the mesh, and the thinner the thread, the smaller the mesh, but if the mesh is too small, it is difficult to observe the condition of the fruit from the outside. From this perspective, the mesh size needs to be at least 3 mm, and in that case, the thread thickness needs to be about 0.1 mm.

[0040] In addition, in the case of relatively hard fruits such as apples, the material of the netting body may be hard, but when applied to soft fruits such as figs, the threads that make up the mesh may rub against the fruit due to wind or other factors, damaging the fruit, so the net needs to be made of as soft a material as possible.

[0041] In the applicant's experiments, an acrylic net used for waterproofing the roofs of buildings was found to be optimal, and although polyester nets commercially available for agricultural use could also be used, they are a little hard for use with figs and peaches. The acrylic net is soft but has tension, and when the outer bag 1 is closed as described above, it spreads out in a bell shape, so that there is less contact between the young fruit and the net, especially when the fruit is young, and a space can be maintained between the fruit and the outer bag.

[0042] The inner lining 2 is formed below the opening 12 of the outer bag 1, avoiding the portion where the sealing unit 30 (described later) is formed. This is because the sealing unit 30 portion needs to be as thin as possible and flexible, since the fruit stalk and the outer bag need to be in close contact with each other.

[0043] The inner lining 2 may be formed over the entire area below the portion where the sealing unit 30 is formed, but is preferably formed over a range from the upper half to the upper one-third of the inside of the outer bag 1.

[0044] As mentioned above, the function of the lining 2 is to catch the "sweat" that the fruit gives off, which is in the form of a fine mist that tends to concentrate and adhere to the upper part of the bag. Also, even if the ripe fruit is prevented from coming into contact with the inner surface of the outer bag 1, it is sufficient that it is only present in the upper part of the bag. Also, this is because the development of the fruit can be observed from the transparent part that is not lined.

[0045] If we assume that the surface of the fruit and the inner surface of the outer bag 1 were in direct contact without using the lining 2, the "sweat" generated by the fruit would adhere to the inner surface of the outer bag 1, causing close contact between the surface of the fruit and the inner surface of the outer bag 1. However, since the fruit already has a certain amount of putrefactive bacteria attached to it, the above-mentioned close contact would cause the bacteria to grow.

[0046] In addition, the "sweat" generated by the fruit adheres directly to the inner surface of the outer bag, turns into droplets, and accumulates at the bottom of the bag, and if there are slits or holes, it is discharged through them. In this state, if there is strong heat during the day, the inside of the bag will dry out, resulting in the aforementioned "sunburn" condition.

[0047] The presence of the mesh lining 2 prevents the occurrence of the aforementioned adhesion. Also, the water droplets that adhere to the inner surface of the outer bag 1 can be stored for a long time in each section of the mesh. Even if the bag is exposed to sunlight in this state, the water droplets will evaporate and take away the heat of evaporation from the inside of the bag, so the probability of the occurrence of a "sunburned" state is extremely small. According to the applicant's observations, this occurred in around 1% of the total number of bagged items.

[0048] Furthermore, the lining 2 has a certain degree of elasticity. fruit The bag is tied and inflated like a skirt from the opening, especially when the fruit is young. fruit The surface of the outer bag 1 and the inner surface of the outer bag 1 do not come into direct contact with each other, and even if the product is produced, most of the fruit The surface is not in contact with the inner surface (lining) of the outer bag.

[0049] <Sealing unit> EXAMPLES

[0050] Corresponding to the opening 12 at the upper end side of the outer bag 1, a sealing unit 30 consisting of a first sealing tool and a second sealing tool is configured as described below.

[0051] That is, as shown in FIG. 2(a), the upper ends of the side edges 11b, 11c at both the left and right ends of the opening 12 are cut to a predetermined depth to form hole spaces 3a, 3b in which the two front and back sheets are separated, and as shown in FIG. 2(b), the hole spaces 3a, 3b are folded back and the tips are welded to the bag body to form front and back through holes 32a, 32b parallel to the upper edge of the outer bag.

[0052] Next, the wire 33a, which deforms in response to an external force, is folded in half, and one end is inserted into one of the front through holes 32a and the other end into one of the rear through holes 32b, causing the two ends to protrude to the other sides of the through holes 32a, 32b. The two protruding ends are then twisted together to form a first sealant (FIG. 2(c)).

[0053] Similarly, wire 33b, which deforms in response to an external force, is folded in half, and the two ends of wire 33b are inserted through the other of through holes 32a, 32b, respectively, to protrude to one side, and the two ends on the protruding side are twisted together to form a second sealing device.

[0054] As will be described later, in the above configuration, the frictional resistance between the through holes 32a, 32b and the wires 33a, 33b that deform in response to an external force is extremely small, so that with young fruits placed in the fruit bag, the outer bag can be closed simply by pulling the wires 33a, 33b that deform in response to an external force in opposite directions from both sides (see FIG. 3(c)). Conversely, when it is time to harvest, the outer bag can be easily opened by pulling the opening 12 from both sides without tearing it (see FIG. 5(a)→FIG. 5(b)).

[0055] Furthermore, the wires 33a and 33b, which are deformed in response to an external force, can be easily bent or twisted, so that the sealing can be easily maintained and the wires can be easily attached to the branch (see FIG. 4). Specifically, iron wires covered with synthetic resin are used as the wires 33a and 33b that are deformed in response to an external force. This not only significantly improves the efficiency of bagging, but also the work efficiency during harvesting. By washing and disinfecting the bags, they can be reused the following year or the year after that. EXAMPLES

[0056] The sealing unit 30 is made up of two sealing members, as in the first embodiment, but the configurations of the sealing members are different.

[0057] That is, as shown in Figure 6(a), the hole openings 3a, 3b are folded back and the ends are welded to the bag body to form front and back through holes 32a, 32b parallel to the upper end edge 11a of the outer bag, which is the same as in Example 1 (Figure 2(a) → Figure 2(b)).

[0058] A wire 33c that deforms in response to a third external force is inserted into one of the through holes 32a on the front and back sides and both ends are twisted outside the through hole 32a to form a third seal. A wire 33d that deforms in response to a fourth external force is inserted into the other of the through holes 32d on the front and back sides and both ends are twisted outside the through hole to form a fourth seal (FIG. 6(b)→FIG. 6(c)).

[0059] As in the first embodiment, iron wires covered with synthetic resin are used as the wires 33c and 33d that are deformed in response to an external force.

[0060] As will be explained in detail later, some fruit species, such as peaches, have extremely short stalks. If the above-mentioned Example 1 is used, the wires 33c, 33d that deform in response to external forces and the material of the outer bag that constitutes the through holes 32a, 32b will be in a shrunken state and will be interposed between the branch B and the fruit A, damaging the fruit. However, if the said Example 2 is used, only the outer bag 1 can be formed to be interposed between the branch B and the fruit A, so there is no need to worry about damaging the fruit (see Fig. 7(c) → Fig. 8(a)).

[0061] <How to use> (Using the sealing unit of Example 1 fruit bag) The sealing unit 30 of the above-mentioned Example 1 was used. fruit The procedure for using the bag is explained below with reference to Figures 3, 4, and 5. The length of the peduncle B that connects the young fruit A and the branch B varies depending on the fruit species. In figs, the peduncle B is an extension of the fruit and is thinner than the fruit. In peaches, the peduncle B is only a few mm long at most.

[0062] First, it is preferable to disinfect and sterilize young fruit A (approximately 30 to 50 mm in diameter), but this is not essential.

[0063] Next, the opening 12 of the outer bag 1 is opened, and the young fruit is inserted into the outer bag 1 through the open opening 12 (FIG. 3a→FIG. 3b).

[0064] Next, when the tips of the wires 33a, 33b that deform in response to the external force are pulled from both sides, the fruit stalk C and the outer bag 1 are closed without any gaps (Fig. 3b → Fig. 3c). Even if it is left in this state for a long time, there is little risk of rainwater or beetles entering through the opening 12. However, since the frictional resistance between the wires 33a, 33b that deform in response to an external force and the outer bag 1 is small as both are made of synthetic resin, the opening will tend to open if left for a long time. On the other hand, the iron wire at the core of the wire that deforms in response to an external force can be bent and stretched freely.

[0065] Therefore, as shown in Fig. 4(a), by folding back both ends of the wires 33a and 33b that deform in response to an external force inward, the sealing state of the opening 12 can be easily maintained. Also, as shown in Fig. 4(b), by wrapping the wires 33a and 33b around a branch with a fruit stalk and twisting it once or twice, the fruit can be prevented from falling even if the wind blows while maintaining the sealing state of the outer bag 1. The type of fruit to be selected can be determined according to the type of fruit.

[0066] In this way, the young fruit A covered by the fruit sack grows over time, and when it becomes a fruit, the surface of the fruit may come into contact with the inner surface of the lining 2. However, even if the fruit grows large, the lining 2 remains between the surface of the fruit and the inner surface of the outer sack 1, forming the above-mentioned gap.

[0067] At this time, the moisture produced by the fruit is trapped within each mesh section of the inner lining 2, so even if there is strong sunlight, it turns into steam and the temperature inside the bag is lost through the heat of vaporization, reducing the chance of "sunburn." Furthermore, excess moisture is discharged to the outside of the outer bag 1 through the drainage slits 16.

[0068] The most efficient way to harvest is to separate the fruit from the branch with the sac still attached and then remove the sac, although it is also possible to remove the sac before separating the fruit from the branch.

[0069] In either case, to remove the fruit bag from the fruit, hold both ends of opening 12 of outer bag 1 and pull lightly. Since the resistance between the wire, which deforms in response to external force, and outer bag 1 is small, opening 12 can be opened with little force (see Figure 5(a) → (b)).

[0070] The twist shown in Figure 4(b) above can be easily removed by untwisting it in the opposite direction, after which the harvesting work can be carried out in the same manner as described above.

[0071] Although the above describes an example of bagging the young fruit, the same effect can be obtained by bagging the fruit after it has ripened, disinfecting it with electrolytic water or an appropriate disinfectant, as before.

[0072] This reduces bagging and unbagging to just a few seconds each, significantly improving cost performance. In addition, because the bag is not damaged, the same fruit bag can be used the following year or the year after, resulting in great cost performance.

[0073] (Using the sealing unit of Example 2 fruit bag) The sealing unit 30 of the second embodiment was used. fruit The procedure for using the bag will be described below with reference to Figs. 7 and 8. fruit The bag is applied to fruits in which the length of the peduncle B connecting the fruit A to the branch B is extremely short (e.g., peaches, usually about 2 mm).

[0074] The opening 12 of the outer bag 1 is left open, and the young fruit is inserted into the outer bag 1 through the open opening 12 (Fig. 7a → Fig. 7b). At this time, the two through holes 32a and 32b on the front and back are made parallel to the direction in which the branch B extends.

[0075] Next, when the tips of the wires 33c and 33d that are deformed in response to the external force are pulled, the branch B becomes fitted into the opening 12 (between the through-holes 32a and 32b) (FIG. 7b→FIG. 7c).

[0076] Next, one through hole 32a is overlapped on the other through hole 32b on branch A (Fig. 7c → Fig. 8a), and the two thin wires 33c, 33d, which deform in response to an external force, are twisted (Fig. 8a → Fig. 8b).

[0077] As a result, even if the young fruit grows, the wires 33c, 33d that deform in response to external forces and the shrunken portions of the material of the outer bag 1 at the through holes 32a, 32b do not get in between the fruit and the branch B, allowing the fruit to grow without being damaged. At this time, the through holes 32a and 32b cover the branch B, so the opening 12 is sealed above the branch B, preventing the intrusion of rainwater and pests. In this example, it is desirable to leave a large hole allowance in order to ensure sufficient overlap between the through holes 32a, 32b on the branch B.

[0078] <Comparison with other conventional products> The above series of operations will be compared with the case where a synthetic or natural fiber string is used instead of a wire (coated wire) that deforms in response to an external force.

[0079] The process from Figure 3(a) → Figure 3(b) → Figure 3(c) (Figure 7(a) → Figure 7(b) → Figure 7(c)) can proceed at approximately the same speed for both.

[0080] However, in the process of Fig. 4(a) and Fig. 8(a) to prevent the opening 12 from opening, if strings are used, both strings must be tied together, which is time-consuming. Similarly, in the process of Fig. 4(b) and Fig. 8(b) to prevent the fruit from falling, both strings must be tied together on the branch, which is time-consuming.

[0081] Even when string is used, the fruit is left for long periods while it develops, during which time the opening of the outer bag remains fastened with both strings, or both strings tied together, or both strings tied together on the branch.

[0082] At harvest time, when fruit A is separated from branch B together with the bag and the bag is removed, the string expands due to wind and rain, and even if you try to open it by holding the opening, it is difficult to open unless you apply a lot of force. In other words, the work of the present invention from Fig. 5(a) to (b) does not proceed smoothly. Therefore, it becomes necessary to cut the bag with scissors or other work. If the bag is cut with scissors, it cannot be reused. Also, if the string is knotted, it is difficult to untie the knot at harvest time, and the string itself has to be cut, and the difficulty of opening the opening is the same as above.

[0083] In other words, a major feature of the present invention is that by using a thin wire that deforms in response to an external force, the state shown in Figure 4(a), (b) or Figure 8(b) in which the seal is maintained can be easily formed, and in addition, the operation of removing the bag at the time of harvesting is extremely easy, as shown in Figure 5(a) → (b).

[0084] As described above, the present invention provides effects that go beyond simply replacing a string with a wire that deforms in response to an external force.

[0085] Next, the iron wire shown in Figure 9 was embedded into one end of the upper end of the bag. fruit When attaching bags, the iron wire must be wrapped around the short fruit stalk with the fingers, which requires skill and can damage the fruit.

[0086] In contrast, the feature of the present invention is that it is possible to pull the ends of the wires 33a, 33b, which deform in response to external forces at a position away from the fruit, as shown in Figures 3(b)->(c) and 7(b)->(c), or to then fold the wires 33a, 33b back as shown in Figure 4(a), or further to twist the wires 33a, 33b on the branch as shown in Figures 4(b) and 8(b), thereby offering the advantage of significantly improving workability.

[0087] <Examples of harvested fruits> As described above, the present invention provides: fruitThe bag opening 12 at the fruit stalk is tightly sealed, preventing rainwater from entering. (2) The fruit itself breathes and releases moisture from its surface, but the mesh lining prevents the fruit from sticking to the outer bag, preventing the growth of spoilage bacteria. (3) In addition, slits are provided around the periphery of the outer bag, allowing moisture to evaporate easily, furthering the effect of (2) above. (4) A wire that deforms in response to external forces is used to seal the outer bag opening 12, making the process of putting the bag on and taking it off extremely efficient.

[0088] These are the four points. The effect of (4) above has been explained in the above <Work Procedure> section, so here we will give examples of the effects of (1) and (2) above. Note that color versions of the black-and-white photographs (Figures 10 to 13) used here will be submitted separately as reference photographs. Figs are soft in both skin and flesh, and are easily spoiled. Even if you try to keep them on the tree until they are fully ripe, the spoilage will continue. Therefore, it is difficult to find fully ripe figs on the market.

[0089] Figure 10 is a photograph of a fig (Masui Dauphin) that was ripened on the tree using the bag of the present invention without spraying any pesticides. It is almost impossible to ripen a fig on the tree, but the bag of the present invention fruit This is achieved by using bags. Figure 10(a) shows the exterior, and (b) shows the half-cut state. Whether it can be sold on the market is another matter, but it has not decayed at all and is at least in a state where it can be eaten. In contrast, Figure 10(c) shows an example where it was left without being bagged. There are ants in it and it is no longer worthy of being eaten.

[0090] Figure 11(a) is a photograph of peaches harvested using the bag of the present invention and without spraying agricultural chemicals. On the other hand, Figure 11(b) is an example of a case where the bag is not used. Peaches are also a fruit that is susceptible to spoilage bacteria, but the bag of the present invention fruit By covering the peaches with bags, the peaches can be grown without being eaten by insects or rotting, without the need for spraying pesticides.

[0091] Figure 12(a) is a photograph of apples harvested using the bag of the present invention and without spraying pesticides. On the other hand, Figure 12(b) is an example of apples harvested using a conventional paper bag (different variety). In Figure 12(b), the apples have been nibbled by insects despite being bagged. [Explanation of symbols]

[0092] 1 outer bag 2 Lining 11(11a~11d) Each side of the outer bag 12 Opening 16 Slit 30 Sealing unit 32a, 32b through holes 33a 33b Wire rod that deforms in response to external force A young fruit B branch C Fruit stalk

Claims

[Claim 1] an outer bag made of a transparent synthetic resin sheet, the outer bag having a thickness of 0.03 to 0.06 mm so that holes are not created when the beetles bite into it and the outer bag is deformed according to the force of the wind when the wind blows, and the outer bag has an opening at the upper end edge; A lining which is a mesh body arranged inside the outer bag and which secures a gap to prevent the inner surface of the outer bag from coming into close contact with the fruit; At least one cut having a predetermined length extending from the outer periphery of the outer bag toward the inside is provided on the side and bottom of the outer bag; A fruit bag comprising:

Images