Protective net

Abstract

To provide a protective net having high cushioning properties.SOLUTION: The protective net is a protective net for wrapping an object to be protected. The protective net includes an inner net 20 which comes into contact with an object to be protected in a state of wrapping the object to be protected, and an outer net 30 which is joined to the inner net 20. When an external force in a direction toward the object to be protected is applied, the inner net 20 is deformed so that the width becomes wider than before the external force is applied.SELECTED DRAWING: Figure 6

Description

[Technical Field]

[0001] The present disclosure relates to protective netting. [Background technology]

[0002] Protective nets for wrapping objects to be protected, such as fruits or vegetables, are known. Patent Document 1 discloses an example of such a protective net. This protective net includes an inner net that comes into contact with the object to be protected and an outer net that is joined to the inner net. The cross-sectional shapes of the inner net and the outer net are elliptical. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2002-166988 Summary of the Invention [Problem to be solved by the invention]

[0004] When an external force acts on the inner net in a direction toward the object to be protected, the protective net has a cushioning effect only equal to the thickness of the inner net. Therefore, there is still room for improvement in the cushioning effect of the protective net when an external force acts on the inner net.

[0005] The present disclosure aims to provide a protective net with high cushioning properties. [Means for solving the problem]

[0006] The protective net according to a first aspect of the present disclosure is a protective net that wraps around an object to be protected, and comprises an inner net that contacts the object to be protected when wrapped around the object, and an outer net that is joined to the inner net, and when an external force acts in a direction toward the object to be protected, the inner net deforms so that its width becomes wider than before the external force acts.

[0007] A protective net according to a second aspect of the present disclosure is the protective net according to the first aspect, wherein the inner net includes an inner curved portion that is convex toward the object to be protected or convex in a direction away from the object to be protected.

[0008] A protective net according to a third aspect of the present disclosure is the protective net according to the second aspect, wherein the inner curved portion has a convex shape toward the object to be protected, and further includes an inner connecting portion that connects the inner curved portion and the outer net.

[0009] A protective net according to a fourth aspect of the present disclosure is the protective net according to the third aspect, wherein, in a state before the inner net is deformed, when the distance between the lower end of the inner connection portion and the tip of the outer edge of the inner curved portion in a planar view of the inner net is defined as height H and the width of the inner net is defined as width W, the ratio of the width W to the height H is within the range of 1.0 or more and 3.0 or less.

[0010] A protective net according to a fifth aspect of the present disclosure is a protective net according to the third or fourth aspect, wherein, in a state before the inner net is deformed, when the distance between the lower end of the inner connection portion and the tip of the outer edge of the inner curved portion in a planar view of the inner net is defined as height H and the distance between the lower end of the inner connection portion and the tip of the inner edge of the inner curved portion is defined as depth D, the ratio of height H to depth D is within the range of 1.1 or more and 8.0 or less.

[0011] A protective net according to a sixth aspect of the present disclosure is a protective net according to any one of the first to fifth aspects, wherein the outer net deforms so as to become wider than before an external force acts in a direction toward the object to be protected. [Effects of the Invention]

[0012] The protective net according to the present disclosure has high cushioning properties. [Brief explanation of the drawings]

[0013] [Figure 1] FIG. [Figure 2] FIG. 2 is a front view of the object to be protected wrapped in the protective net of FIG. 1. [Figure 3] Plan view of Figure 2. [Figure 4] 2 is a diagram showing an arbitrary pair of end faces of an inner member and an outer member of the protective net of FIG. 1. FIG. [Figure 5] 4 is a plan view of the protective net in FIG. 3 with an object to be protected accommodated in the accommodation space of the protective net. [Figure 6] 6 is a diagram showing a state in which an external force is applied to the protective net of FIG. 5. [Figure 7] FIG. 10 is a view showing an arbitrary pair of end faces of an inner member and an outer member of the protective net of the first modified example. [Figure 8] FIG. 10 is a view showing an arbitrary pair of end faces of an inner member and an outer member of a protective net of a second modified example. [Figure 9] FIG. 10 is a view showing an arbitrary pair of end faces of an inner member and an outer member of a protective net of a third modified example. [Figure 10] FIG. 11 is a view showing an arbitrary pair of end faces of an inner member and an outer member of a protective net according to a fourth modified example. [Figure 11] FIG. 13 is a view showing an arbitrary pair of end faces of an inner member and an outer member of a protective net according to a fifth modified example. [Figure 12] 1 is a table showing the specifications and test results of the protective nets of Examples 1 to 5. [Figure 13] 1 is a table showing the specifications and test results of the protective nets of Examples 6 to 10. [Figure 14] 1 is a table showing the specifications and test results of the protective nets of Comparative Examples 1 to 3. DETAILED DESCRIPTION OF THE INVENTION

[0014] A protective net according to an embodiment of the present disclosure will be described below with reference to the drawings. Note that identical or corresponding parts in the drawings are designated by the same reference numerals, and their description will not be repeated. In the numerical ranges described in stages in this embodiment, the upper or lower limit value described in one numerical range may be replaced with the upper or lower limit value of another numerical range described in stages. Separately described upper and lower limits, upper and lower limits, or lower and upper limits may be combined to form respective numerical ranges.

[0015] [1. Configuration of the protective net] Fig. 1 is a front view of a protective net 10 of this embodiment. Fig. 2 is a front view showing a state in which an object to be protected 100 is wrapped in the protective net 10 of Fig. 1. Fig. 3 is a plan view of Fig. 2. Fig. 4 is a diagram showing any pair of the inner member 21 of the inner net 20 and the outer member 31 of the outer net 30 of the protective net 10 of Fig. 1.

[0016] The protective net 10 is used to wrap the object 100 to be protected. In a typical example, one protective net 10 wraps one object 100 to be protected. The object 100 to be protected is transported in a state where a plurality of the protective nets 10 are packed in a container such as a cardboard box while wrapped in the protective nets 10. The protective net 10 is configured to prevent the object 100 from being damaged even if an external force such as vibration acts on the object 100 to be protected during transportation. The object 100 to be protected is, for example, a fruit or a vegetable. In the example shown in FIG. 2 or FIG. 3, the object 100 to be protected is an apple.

[0017] The protective net 10 includes an inner net 20 and an outer net 30. The protective net 10 is cylindrical with openings 10X and 10Y. It has an accommodation space 10A. The accommodation space 10A is a space defined by the inner net 20 and the outer net 30, and is a space in which the object to be protected 100 is accommodated. The protective net 10 accommodates the object to be protected 100 in the accommodation space 10A through the opening 10X or the opening 10Y. The protective net 10 of this embodiment is a so-called single-cap type protective net that is used without being folded over.

[0018] The material constituting the inner net 20 and the outer net 30 can be selected arbitrarily as long as it is elastically deformable and soft enough not to damage the object to be protected 100 even when it comes into contact with the object to be protected 100. Examples of materials constituting the inner net 20 and the outer net 30 include polyethylene, polyethylene produced from ethylene obtained from plant-derived raw materials (plant-derived polyethylene), polystyrene, polypropylene, polypropylene produced from propylene obtained from plant-derived raw materials (plant-derived polypropylene), and foam materials such as polyurethane. In other examples, the material constituting the inner net 20 and the outer net 30 may be low-density polyethylene, medium-density polyethylene, high-density polyethylene, linear low-density polyethylene, EVA (Ethylene-vinyl acetate), EEA (Ethylene-Ethylacrylate Copolymer), EMMA (Ethylene-methyl methacrylate copolymer), cyclic olefin copolymer, 4-methyl-1-pentene resin, metal ion cross-linked resin of ethylene-methyl methacrylate copolymer, or ethylene-methacrylic acid copolymer. The material constituting the inner net 20 and the material constituting the outer net 30 may be the same material or different materials.

[0019] The inner net 20 is located on the accommodation space 10A side relative to the outer net 30. When the object to be protected 100 is accommodated in the accommodation space 10A, the inner net 20 comes into contact with the object to be protected 100. The inner net 20 has a plurality of inner members 21. The plurality of inner members 21 are arranged so as to be inclined at a predetermined angle with respect to the up-down direction of the protective net 10.

[0020] The outer net 30 is located on the opposite side of the inner net 20 from the storage space 10A. When the object to be protected 100 is stored in the storage space 10A, the outer net 30 does not come into contact with the object to be protected 100. The outer net 30 has a plurality of outer members 31. The plurality of outer members 31 are arranged so as to intersect with the inner members 21. The plurality of outer members 31 are joined to the plurality of inner members 21 at the portions where they are in contact with the plurality of inner members 21 by, for example, any means. The optional means may be, for example, joining with an adhesive, a circular die method using an extruder, or heat fusion by a flat die method using an extruder.

[0021] FIG. 4 is a diagram showing an arbitrary pair of end faces of the inner member 21 and the outer member 31 to be joined together in the protective net 10 of FIG.

[0022] The inner member 21 has an inner curved portion 40 and an inner connecting portion 50. The inner curved portion 40 has a convex shape facing the object to be protected 100. The radius of curvature of the outer edge 41 of the inner curved portion 40 can be selected arbitrarily. From the viewpoint of preventing damage to the object to be protected 100 when the inner curved portion 40 comes into contact with the object to be protected 100, the radius of curvature of the outer edge 41 of the inner curved portion 40 is preferably 0.25 mm or more.

[0023] The inner connecting portion 50 connects the inner curved portion 40 to the adjacent outer member 31. The shape of the inner connecting portion 50 can be selected arbitrarily as long as it is a shape that allows the inner member 21 to deform so as to become wider than before the external force acts on the inner net 20 when an external force acts on the inner net 20 in a direction toward the object to be protected 100. In the example shown in Fig. 4 etc., the shape of the inner connecting portion 50 is similar to an ellipse.

[0024] The inner connecting portion 50 has a first portion 51 and a second portion 52. The first portion 51 connects one end of the inner curved portion 40 to the adjacent outer member 31. The second portion 52 is connected to the other end of the inner curved portion 40. At the end face of the inner member 21, the lengths of the first portion 51 and the second portion 52 may be the same or different. In the example shown in FIG. 4 etc., the lengths of the first portion 51 and the second portion 52 are substantially the same at the end face of the inner member 21.

[0025] Before the inner net 20 is deformed, in other words, before an external force acts on the inner net 20, the maximum distance between the lower end 50A of the inner connecting portion 50 and the tip 41A of the outer edge 41 of the inner curved portion 40 is defined as the height HA, and the maximum width of the inner net 20 is defined as the width WA. The ratio RA1 of the width WA to the height HA can be selected arbitrarily. From the viewpoint of ensuring the amount of deformation of the inner net 20 to absorb an external force when it acts on the inner net 20, the ratio RA1 is preferably 3.0 or less. From the viewpoint of preventing the radius of curvature of the outer edge 41 of the inner curved portion 40 from becoming smaller, in other words, from the viewpoint of preventing damage to the object to be protected 100 even when the inner curved portion 40 comes into contact with the object to be protected 100, the ratio RA1 is preferably 1.0 or more. A preferred range of the ratio RA1 is 1.0 or more and 3.0 or less.

[0026] Before the inner net 20 is deformed, in other words, before an external force acts on the inner net 20, the maximum distance between the lower end 50A of the inner connecting portion 50 and the tip 42A of the inner edge 42 of the inner curved portion 40 is defined as the depth DA. The ratio RA2 of the height HA to the depth DA can be selected arbitrarily. From the viewpoint of preventing the inner net 20 from becoming too rigid and becoming difficult to deform, the ratio RA2 is preferably 8.0 or less. From the viewpoint of ensuring the amount of deformation of the inner net 20 to absorb an external force when it acts on the inner net 20, the ratio RA2 is preferably 1.1 or more. A preferred range for the ratio RA2 is 1.1 or more and 8.0 or less.

[0027] The outer member 31 has substantially the same shape as the inner member 21. The outer member 31 may have a different shape from the inner member 21. The outer member 31 has an outer curved portion 60 and an outer connecting portion 70. The outer curved portion 60 has a shape that is convex in the direction away from the object to be protected 100. The radius of curvature of the outer edge 61 of the outer curved portion 60 can be selected arbitrarily. From the viewpoint of preventing damage to the object to be protected 100 when the outer curved portion 60 comes into contact with an object other than the object to be protected 100, the radius of curvature of the outer edge 61 of the outer curved portion 60 is preferably 0.25 mm or more.

[0028] The outer connecting portion 70 connects the outer curved portion 60 to the adjacent outer member 31. The shape of the outer connecting portion 70 can be selected arbitrarily as long as it is a shape that allows the outer member 31 to deform so as to become wider than before the external force acts on the outer net 30 in a direction toward the object to be protected 100. In the example shown in Fig. 4 etc., the shape of the outer connecting portion 70 is similar to an ellipse.

[0029] The outer connecting portion 70 has a first portion 71 and a second portion 72. The first portion 71 connects one end of the outer curved portion 60 to the adjacent inner member 21. The second portion 72 is connected to the other end of the outer curved portion 60. At the end face of the outer member 31, the lengths of the first portion 71 and the second portion 72 may be the same or different. In the example shown in FIG. 4 etc., the lengths of the first portion 71 and the second portion 72 are substantially the same at the end face of the outer member 31.

[0030] Before the outer net 30 is deformed, in other words, before an external force acts on the outer net 30, the maximum distance between the lower end 70A of the outer connecting portion 70 and the tip 61A of the outer edge 61 of the outer curved portion 60 is defined as height HB, and the maximum width of the outer net 30 is defined as width WB. The ratio RB1 of the width WB to the height HB can be selected arbitrarily. From the viewpoint of ensuring the amount of deformation of the outer net 30 to absorb an external force when it acts on the outer net 30, it is preferable that the ratio RB1 be 3.0 or less. From the viewpoint of preventing the radius of curvature of the outer edge 61 of the outer curved portion 60 from becoming smaller, in other words, from the viewpoint of preventing damage to objects other than the object to be protected 100 even when the outer curved portion 60 comes into contact with the object to be protected 100, it is preferable that the ratio RB1 be 1.0 or more. A preferable range of the ratio RB1 is 1.0 or more and 3.0 or less.

[0031] Before the outer net 30 is deformed, in other words, before an external force acts on the outer net 30, the maximum distance between the lower end 70A of the outer connecting portion 70 and the tip 62A of the inner edge 62 of the outer curved portion 60 is defined as the depth DB. The ratio RB2 of the height HB to the depth DB can be selected arbitrarily. From the viewpoint of preventing the outer net 30 from becoming too rigid and becoming difficult to deform, the ratio RB2 is preferably 8.0 or less. From the viewpoint of ensuring the amount of deformation of the outer net 30 to absorb an external force when it acts on the outer net 30, the ratio RB2 is preferably 1.1 or more. A preferred range for the ratio RB2 is 1.1 or more and 8.0 or less.

[0032] [2. Function of the protective net] The function of the protective net 10 will be described with reference to FIGS. Fig. 5 is an enlarged view of the portion X in Fig. 3. Fig. 6 is a plan view showing a state in which an external force acts on the protective net 10 in a direction toward the object 100 to be protected in the state shown in Fig. 5.

[0033] As shown in FIG. 5, when the object to be protected 100 is accommodated in the accommodation space 10A of the protective net 10, the inner curved portion 40 of the inner net 20 mainly comes into contact with the object to be protected 100.

[0034] For example, when an external force acts on the protective net 10 in a direction toward the object to be protected 100 due to an impact when the object to be protected 100 is transported, the inner net 20 deforms so that the first portion 51 and the second portion 52 separate from each other, in other words, in the direction of the dashed arrow in Fig. 5. Therefore, as shown in Fig. 6, the inner net 20 deforms so that the width WA becomes wider than before the external force acts on it.

[0035] The outer net 30 deforms so that the first portion 71 and the second portion 72 are separated from each other, in other words, in the direction of the dashed arrow in Fig. 5. Therefore, as shown in Fig. 6, the outer net 30 deforms so that the width WB becomes wider than before the external force is applied.

[0036] [3. Effect of the protective net] The protective net 10 provides the following effects.

[0037] <3-1> When an external force acts on the inner net 20 in a direction toward the object to be protected 100, the inner net 20 deforms so that its width WA is wider than before the external force was applied. The protective net 10 can absorb the external force acting on the inner net 20 by adding it to the thickness of the inner net 20 and by the deformation of the inner net 20. The protective net 10 has high cushioning properties, so the object to be protected 100 is less likely to be damaged.

[0038] <3-2> When an external force acts on the outer net 30 in a direction toward the object to be protected 100, the outer net 30 deforms so that its width WB is wider than before the external force was applied. The protective net 10 can absorb the external force acting on the outer net 30 by adding it to the thickness of the outer net 30 and by the deformation of the outer net 30. The protective net 10 has high cushioning properties, so the object to be protected 100 is less likely to be damaged.

[0039] [4. Modifications] The above embodiments are merely examples of possible forms of the protective net according to the present disclosure and are not intended to limit the forms. Each aspect disclosed herein can be combined with any other feature disclosed herein. The protective net according to the present disclosure may take forms different from those illustrated in the above embodiments. Examples include forms in which part of the configuration of the above embodiments is replaced, modified, or omitted, or forms in which new configurations are added to the above embodiments. The present disclosure is not limited by the above embodiments, but is limited only by the claims. Some examples of modifications of the above embodiments are shown below. Note that the above embodiments and the following modifications can be combined with each other as long as there is no technical contradiction.

[0040] <4-1> In the above embodiment, the shapes of the inner member 21 and the outer member 31 can be changed.

[0041] Fig. 7 is a diagram showing any pair of end faces of the inner member 21 and the outer member 31 of the protective net 10 according to a first modified example of the embodiment. As shown in Fig. 7, the outer member 31 may be arranged so that the outer curved portion 60 has a convex shape facing the object to be protected 100. In the first modified example, the outer curved portion 60 and the inner connecting portion 50 of the inner member 21 may be joined.

[0042] Fig. 8 is a diagram showing any pair of end faces of the inner member 21 and the outer member 31 of the protective net 10 of a second modified example, which is a further modified example of the first modified example. As shown in Fig. 8, the inner member 21 may be arranged so that the inner curved portion 40 has a convex shape facing away from the object to be protected 100. In the second modified example, the inner curved portion 40 of the inner member 21 and the outer curved portion 60 of the outer member 31 may be joined together.

[0043] Fig. 9 is a diagram showing any pair of end faces of the inner member 21 and the outer member 31 of the protective net 10 according to a third modified example of the embodiment. As shown in Fig. 9, the inner member 21 may be arranged so that the inner curved portion 40 has a convex shape facing away from the object to be protected 100. In the third modified example, the outer connecting portion 70 of the outer member 31 and the inner curved portion 40 of the inner member 21 may be joined.

[0044] Fig. 10 is a diagram showing any pair of end faces of the inner member 21 and the outer member 31 of the protective net 10 according to a fourth modified example of the embodiment. As shown in Fig. 10, the inner member 21 may have an inner straight portion 40X having a straight outer edge, instead of the inner curved portion 40. Similarly, in the fourth modified example, the outer member 31 may have an outer straight portion 60X having a straight outer edge, instead of the outer curved portion 60.

[0045] Fig. 11 is a diagram showing any pair of end faces of the inner member 21 and the outer member 31 of the protective net 10 of a fifth modified example, which is a further modified example of the fourth modified example. As shown in Fig. 11, the inner member 21 may be arranged so that the inner straight portion 40X faces away from the object to be protected 100. Similarly, the outer member 31 may be arranged so that the outer straight portion 60X faces the object to be protected 100. The inner members 21 of the first to fifth modified examples and the outer members 31 of the first to fifth modified examples can be combined in any manner as long as there is no technical contradiction.

[0046] <4-2> In the above embodiment, the outer member 31 has substantially the same shape as the inner member 21. However, the outer member 31 may have any shape different from that of the inner member 21.

[0047] 5. Working Example The inventors of the present application manufactured protective nets of Examples 1 to 10 and Comparative Examples 1 to 3 and conducted tests on the protection of protected objects. Fig. 12 is a table showing the specifications and test results of the protective nets of Examples 1 to 5. Fig. 13 is a table showing the specifications and test results of the protective nets of Examples 6 to 10. Fig. 14 is a table showing the specifications and test results of the protective nets of Comparative Examples 1 to 3. The thickness of the foam of the single-type protective nets of Examples 1 to 10 and Comparative Examples 1 and 2 shown in Figs. 12 to 14 is twice the height. The thickness of the foam of the double-type protective net of Comparative Example 3 shown in Fig. 14 is four times the height.

[0048] The protective nets of Examples 1 to 10 and Comparative Examples 1 to 3 were manufactured as follows. First, 100% by weight of the constituent materials, 1.5% by weight of a nucleating agent (talc manufactured by Nippon Talc Co., Ltd., trade name "Microace K-1"), and 3% by weight of a dispersant (glycerin monostearate manufactured by Kao Corporation, trade name "Excel S-95") were charged into a 50 mm diameter extruder and melt-kneaded at a temperature of 180°C and a pressure of 3 MPa. Next, 15% by weight of butane was injected and mixed with 100% by weight of the constituent materials through a foaming agent inlet located in the middle of the extruder. The mixture was then extruded into the atmosphere through a rotating die (the outer die and inner die rotate in opposite directions), yielding net-shaped (80 mm wide) foams for the Examples and Comparative Examples. The single-type protective net was cut to 90 mm, and the double-type, which required a double folding process, was cut to 190 mm. The end face shapes of the protective nets of Examples 1 to 6 and 8 to 10 are as shown in Fig. 4. The end face shape of the protective net of Example 7 is as shown in Fig. 10.

[0049] The LDPE shown in Figures 12 to 14 is low-density polyethylene manufactured by Sumitomo Chemical Co., Ltd., under the trade name "Sumisen G401." The EVA is an ethylene-vinyl acetate copolymer manufactured by Tosoh Corporation, under the trade name "Ultrathene 630." The plant-derived PE is low-density polyethylene manufactured by Braskem, under the trade name "SBF0323HC." The LLDPE is linear low-density polyethylene manufactured by Ube Maruzen Polyethylene, under the trade name "Yumerit 1520F."

[0050] In the test, the objects to be protected wrapped in the protective nets of Examples 1 to 10 and Comparative Examples 1 to 3 were packed into cardboard boxes, placed on the bed of a light truck, and after driving 10 km, the appearance of the objects to be protected was visually confirmed. The objects to be protected were peaches.

[0051] In the "Folding Operation" section shown in Figures 12 to 14, "◯" means that the protective net can be used with a single cap. "X" means that the protective net can be used with a double cap, in other words, it is not suitable for use with a single cap.

[0052] In the "Damage to fruit" category shown in Figures 12 to 14, "◯" means that there were no scratches or marks on the object to be protected. "△" means that there were slight marks over a wide area on the object to be protected. "X" means that there were scratches and marks on the object to be protected.

[0053] 12 to 14, the "◎" in the "Overall Judgment" category indicates that the evaluations of the "Folding Work" and "Damage to Fruit" categories are "Good." The "×" indicates that at least one of the evaluations of the "Folding Work" and "Damage to Fruit" categories is "△" or "×."

[0054] The protective nets of Examples 1 to 10 were given an overall rating of "◎". This is thought to be because the protective nets of Examples 1 to 10 have the structure related to the protective nets of the embodiment or modified example, and have high shock-absorbing properties. The protective nets of Comparative Examples 1 to 3 were given an overall rating of "×". This is thought to be because the protective nets of Comparative Examples 1 to 3 have low shock-absorbing properties. [Explanation of symbols]

[0055] 10: Protective net 20: Inner Net 30: Outer Net 40: Inner curved section 50: Inner connection part

Claims

1. A protective net for enclosing an object to be protected, An inner net that comes into contact with the object to be protected when the object to be protected is wrapped around the inner net; An outer net joined to the inner net, When an external force acts in a direction toward the object to be protected, the inner net is deformed so as to become wider than before the external force acts. Protective net.

2. The inner net is An inner curved portion that is convex toward the object to be protected or convex in a direction away from the object to be protected The protective netting according to claim 1.

3. the inner curved portion has a convex shape facing the object to be protected, The inner curved portion and the outer net are further connected to each other by an inner connecting portion. The protective net according to claim 2.

4. In a state before the inner net is deformed, The distance between the lower end of the inner connection portion and the tip of the outer edge of the inner curved portion in a plan view of the inner net is defined as a height H, When the width of the inner net is width W, The ratio of the width W to the height H is in the range of 1.0 to 3.

0. The protective net according to claim 3.

5. In a state before the inner net is deformed, The distance between the lower end of the inner connection portion and the tip of the outer edge of the inner curved portion in a plan view of the inner net is defined as a height H, When the distance between the lower end of the inner connection portion and the tip of the inner edge of the inner curved portion is defined as a depth D, The ratio of the height H to the depth D is in the range of 1.1 to 8.

0. The protective net according to claim 3 or 4.

6. The outer net is When an external force acts in a direction toward the object to be protected, the width of the protective film is deformed so as to be wider than before the external force acts. The protective net according to claim 1 or 2.

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