JP2024063999A - Movement restriction sheet, container manufacturing method, building or facility manufacturing method, container, and building or facility - Google Patents

Abstract

To provide a movement restriction sheet that has high effect sustainability more than existing technology, and to provide a method for manufacturing a container, a method for manufacturing a building or equipment, a container, and a building or equipment.SOLUTION: A movement restriction sheet for restricting movement of an objective organism includes a sheet-like substrate provided with an uneven structure. The uneven structure restricts an objective organism from moving on the substrate.SELECTED DRAWING: Figure 1

Description

Embodiments of the present invention relate to a movement restriction sheet, a method for manufacturing a container, a method for manufacturing a building or facility, a container, and a building or facility.

Technologies are known that restrict the movement of living things to prevent the intrusion of pests, animals, and other wild creatures into homes, and to prevent the escape of research subjects. For example, Patent Document 1 describes a pest repellent that is characterized by a carrier that holds hinokitiol and at least one surface of the carrier that is covered with a permeable film.

JP 2004-346052 A

However, when pest repellents and other chemicals are used in this way, they evaporate over time. As a result, the durability of their effectiveness in restricting the movement of living organisms is limited.

The problem that the present invention aims to solve is to provide a movement restriction sheet, a method for manufacturing a container, a method for manufacturing a building or facility, a container, and a building or facility that are more effective and lasting than the conventional techniques described above.

The present invention may include the following aspects.
[1] A movement restriction sheet for restricting the movement of a target organism,
The present invention includes a sheet-like substrate having a concave-convex structure,
The uneven structure restricts the target organism from moving along the substrate.
Movement restriction sheet.
[2] The uneven structure is arranged so as to float the body of the target organism attempting to pass through the uneven structure from the surface of the base.
The movement restriction sheet according to [1].
[3] The uneven structure includes a plurality of protrusions formed on the substrate.
The movement limiting sheet according to [1] or [2].
[4] The protrusion has a tapered shape.
The movement restriction sheet according to [3].
[5] The protrusion has a frustum shape.
The movement restriction sheet according to [3] or [4].
[6] The distance between adjacent protrusions is 0.1 mm or more and 200 mm or less.
The movement limiting sheet according to any one of [3] to [5].
[7] The height of the protrusion is 0.1 mm or more and 200 mm or less.
The movement limiting sheet according to any one of [3] to [6].
[8] The uneven structure is a uneven pattern in which unevenness is regularly arranged.
The movement limiting sheet according to any one of [1] to [7].
[9] The substrate has a first surface and a second surface,
The uneven structure is formed on the first surface,
An adhesive layer is formed on the second surface.
The movement limiting sheet according to any one of [1] to [8].
[10] The substrate is a deformable flexible member.
The movement limiting sheet according to any one of [1] to [9].
[11] A method for manufacturing a container for restricting the movement of a target organism, comprising:
In a container having a side wall, the movement limiting sheet according to any one of [1] to [10] is attached to the side wall.
A method for manufacturing a container.
[12] A method for manufacturing a structure or facility that restricts the movement of a target organism, comprising:
In a building or facility having a side wall, the movement limiting sheet according to any one of [1] to [10] is attached to the side wall,
A method for manufacturing a structure or facility.
[13] A container for restricting the movement of a target organism,
A side wall having a concave-convex structure is provided,
The uneven structure restricts the target organism from moving along the wall surface of the side wall.
container.
[14] The container contains the target organism therein,
The uneven structure is provided on the inner peripheral surface of the side wall and suppresses the target organism in the container from escaping from the container.
The container described in [13].
[15] A structure or facility for restricting the movement of target organisms,
A side wall having a concave-convex structure is provided,
The uneven structure restricts the target organism from moving along the wall surface of the side wall.
Buildings or facilities.

The present invention provides a highly effective and long-lasting movement restriction sheet, a method for manufacturing a container, a method for manufacturing a building or facility, a container, and a building or facility.

FIG. 2 is a perspective view of a movement limiting sheet 100 according to the first embodiment. 2 is a cross-sectional view of the movement limiting sheet 100 according to the first embodiment taken along line II-II in FIG. 5A to 5C are schematic diagrams showing a method of using the movement limiting sheet 100 according to the first embodiment. 5A to 5C are schematic diagrams showing a method of using the movement limiting sheet 100 according to the first embodiment. 5A to 5C are schematic diagrams showing a method of using the movement limiting sheet 100 according to the first embodiment. FIG. 11 is a perspective view of a movement limiting sheet 200 according to a second embodiment. FIG. 13 is a perspective view of a movement limiting sheet 300 according to a third embodiment. 8 is a cross-sectional view of a movement limiting sheet 300 according to a third embodiment taken along line VIII-VIII in FIG. 7. FIG. 11 is a perspective view of a container 400 according to a fourth embodiment. FIG. 13 is a perspective view of a window frame 500 according to a fifth embodiment. 1 is a graph showing the average survival rate of 7-day-old larvae in Experimental Examples 1 to 5. 1 is a graph showing the average survival rate of 10-day-old larvae in Experimental Examples 1 to 5. 1 is a graph showing the average survival rate of 20-day-old larvae in Experimental Examples 1 to 5. FIG. 13 is a perspective view showing a configuration of a movement limiting sheet 600 in Experimental Example 6.

The following describes the movement restriction sheet, the container manufacturing method, the building or facility manufacturing method, the container, and the building or facility according to the embodiments. Note that the following embodiments show one aspect of the present invention, do not limit the present invention, and can be modified as desired within the scope of the technical concept of the present invention. In addition, each configuration and each feature of the embodiments can be combined as desired. Note that the drawings are schematic or conceptual, and the relationship between the thickness and width of each part, the size ratio between parts, etc. are not necessarily the same as in reality. Also, even when the same part is shown, the dimensions and ratios of each part may be shown differently depending on the drawing. Also, the XYZ coordinates shown in the drawings are defined for the convenience of explanation, and do not limit the invention.

＜Overview＞
According to one embodiment, there is provided a movement restriction sheet for restricting the movement of a target organism, the movement restriction sheet comprising a sheet-like base having an uneven structure, the uneven structure restricting the movement of the target organism along the base.
There is also provided a method for manufacturing a container for restricting the movement of a target organism, the method including a step of attaching the above-mentioned movement-restricting sheet to a side wall of a container having a side wall.
Also provided is a method for manufacturing a structure or facility for restricting the movement of a target organism, the method including a step of attaching the above-mentioned movement restriction sheet to a side wall of a structure or facility having a side wall.
These embodiments will be described below using the first to third embodiments as examples.

According to another embodiment, a container for restricting movement of a target organism is provided, the container comprising a sidewall having an uneven structure, the uneven structure restricting the target organism from moving along the wall surface of the sidewall.
This embodiment will be described below using the fourth embodiment as an example, which also includes a container having the movement limiting sheet attached to the side wall.

According to yet another embodiment, there is provided a structure or facility for restricting movement of a target organism, the structure or facility having a sidewall with a relief structure, the relief structure restricting the target organism from moving along the wall surface of the sidewall.
This embodiment will be described below using the fifth embodiment as an example, and this embodiment also includes a building or facility in which the movement limiting sheet is attached to the side wall.

First Embodiment
A movement limiting sheet 100 according to a first embodiment will be described with reference to FIGS.
FIG. 1 is a perspective view of a movement limiting sheet 100 according to the first embodiment.
FIG. 2 is a cross-sectional view of the movement limiting sheet 100 according to the first embodiment taken along line II-II in FIG.
FIG. 3 is a schematic diagram showing a method of using the movement limiting sheet 100 according to the first embodiment.
FIG. 4 is a schematic diagram showing a method of using the movement limiting sheet 100 according to the first embodiment.
FIG. 5 is a schematic diagram showing a method of using the movement limiting sheet 100 according to the first embodiment.

[Configuration of movement limiting sheet 100]
1 and 2, the movement limiting sheet 100 has a base 110, a plurality of protrusions 120 (an example of a "concave-convex structure"), and an adhesive layer 130. The base 110 is a sheet-like member having a first surface 112 and a second surface 114. The plurality of protrusions 120 protrude in the Z direction from the first surface 112 of the base 110, which extends along the XY plane. The adhesive layer 130 is provided on the second surface 114 of the base 110.

The movement limiting sheet 100 is attached to an existing structure via an adhesive layer 130. The protrusions 120 prevent target organisms, such as insects, from passing through the movement limiting sheet 100. For example, the protrusions 120 function as a physical barrier structure that prevents the target organisms from attempting to cross the movement limiting sheet 100.

The protrusion 120 has a tapered shape with a cross-sectional area that decreases toward the tip. Specifically, the shape of the protrusion 120 is a truncated cone. By having the protrusion 120 have such a thick base, the possibility of the protrusion 120 breaking or bending can be reduced. However, the shape of the protrusion 120 is not limited to this. For example, the shape of the protrusion 120 may be another truncated pyramid shape, such as a truncated pyramid shape, or may be a cone or pyramid shape with a pointed tip. The position of the tip may be offset from the central axis. The protrusion 120 does not necessarily have to be tapered. For example, the shape of the protrusion 120 may be a shape with a constant cross-sectional area, such as a cylinder or a prism, or may be an inverse taper shape with a cross-sectional area that increases toward the tip. Any other shape can be adopted as long as it can restrict the movement of the target organism.

The size of the movement restriction sheet 100 is not particularly limited, and can be designed appropriately depending on the application. For example, the length (size in the X direction) of the base 110 may be 10 mm to 10 m, 50 mm to 5 m, or 100 mm to 1 m. For example, the width (size in the Y direction) of the base 110 may be 1 mm to 1 m, 5 mm to 500 mm, 10 mm to 100 mm, or 15 mm to 50 mm. For example, the thickness (size in the Z direction) of the base 110 may be 0.01 mm to 10 mm, 0.05 mm to 5 mm, or 0.1 mm to 1 mm. The size of the adhesive layer 130 may be approximately the same as that of the base 110. However, the sizes exemplified here are merely examples, and larger or smaller bases 110 and adhesive layers 130 can be used depending on the size of the target organism or the structure to which the movement restriction sheet 100 is applied.

For example, the height of the protrusion 120 (i.e., the length from the first surface 112 of the base 110 to the tip of the protrusion 120 in the Z direction perpendicular to the first surface 112) may be 0.1 mm to 200 mm, 0.5 mm to 100 mm, 1 mm to 50 mm, 1.2 mm to 20 mm, or 1.5 mm to 10 mm. For example, the diameter of the bottom surface of the protrusion 120 may be 0.5 mm to 50 mm, 1 mm to 20 mm, or 1.5 mm to 10 mm. For example, the diameter of the tip surface of the protrusion 120 may be 0.1 mm to 50 mm, 0.5 mm to 20 mm, or 1 mm to 10 mm. The distance d between adjacent protrusions 120 (i.e., the shortest distance d between two adjacent protrusions 120) may be less than the average body width of the target organism, and may be, for example, 0.1 mm to 200 mm, 0.15 mm to 100 mm, 0.2 mm to 50 mm, 0.3 mm to 20 mm, 0.4 mm to 10 mm, or 0.5 mm to 5 mm. However, the sizes exemplified here are merely examples, and larger or smaller protrusions 120 can be used depending on the size of the target organism or the structure to which the movement restriction sheet 100 is applied. In addition, the sizes and shapes of all the protrusions 120 may be substantially the same as each other, or may be different. If the sizes and shapes of the protrusions 120 are all approximately the same, design, manufacturing, configuration changes, and the like are facilitated. On the other hand, multiple types of protrusions 120 may be used in combination, and there may be a certain degree of variation in the size and shape of each protrusion 120.

The number and arrangement of the protrusions 120 are not particularly limited as long as they can restrict the movement of the target organism. For example, as shown in FIG. 1, the multiple protrusions 120 may form a regular uneven pattern in which the protrusions 120 are regularly arranged. The protrusions 120 may be arranged on the base 110 at regular intervals. By arranging the protrusions 120 in a regular repeated structure, the design, manufacture, and configuration change of the movement restriction sheet 100 are facilitated. In the example shown in FIG. 1, the multiple protrusions 120 are arranged in a matrix, but the protrusions 120 may be arranged in a staggered arrangement in which the positions in the X direction are shifted for each row (for example, a staggered arrangement). In this case, even if the target organism passes through the first row, the movement is restricted by the protrusions 120 in the next row, so a higher movement restriction effect is expected. Alternatively, the protrusions 120 may be arranged randomly. The number density of the protrusions 120 relative to the size of the base 110 is not particularly limited, but may be set so that, for example, two adjacent protrusions 120 physically interfere with the target organism that tries to pass between them. Preferably, the number density of the protrusions 120 on the substrate 110 and/or the spacing between adjacent protrusions 120 are set so that the contact area between the target organism and the substrate 110 is small enough that the target organism cannot climb up the substrate 110 that is vertically arranged.

The protrusions 120 may be formed integrally with the base 110, or may be formed separately from the base 110 and joined to the base 110. For example, the base 110 and the protrusions 120 may be molded together by any method, such as photolithography, injection molding, or extrusion molding. Alternatively, the protrusions 120 may be formed by attaching separately molded protrusions 120 to the sheet-like base 110, or by depositing the material of the protrusions 120 on the base 110. Any other method may be used.

The material of the substrate 110 is not particularly limited. For example, any material such as a polymer material, a metal material, a ceramic material, a glass material, or a composite material can be used as the material of the substrate 110. Examples of materials that can be used for the substrate 110 include polylactic acid (PLA), polyolefin, polycarbonate, polystyrene, polyester, polyvinyl alcohol (PVA), polyamide, polyurethane, ABS resin, acrylic resin, cellulose-based resin, steel, aluminum, aluminum alloy, copper, copper alloy, titanium, titanium alloy, silicon oxide, aluminum oxide, titanium oxide, iron oxide, carbon material, silicon carbide, and concrete. If the substrate 110 includes a water-repellent material, this is effective in making it difficult for larvae, slugs, and the like to attach their bodies to the substrate 110. If the substrate 110 includes a low-friction material, this is effective in making it difficult for the target organism to hold its body against the substrate 110 by static friction.

The material of the protrusions 120 is similarly not particularly limited. The material of the protrusions 120 may be the same as or different from the material of the base body 110. The material of the adhesive layer 130 is not particularly limited, and any adhesive material can be used.

When the movement limiting sheet 100 is applied to a non-planar structure such as a curved surface, the base 110 is preferably a deformable flexible member. In this case, the base 110 is preferably formed as a flexible sheet member from a polymeric material or a metal material. With this configuration, the movement limiting sheet 100 can be easily deformed to match the shape of the structure by applying a small external force. In addition, the movement limiting sheet 100 can be cut with ordinary scissors or a utility knife, so processing such as adjusting the length can be easily performed as needed. In this way, a highly versatile movement limiting sheet 100 can be obtained that can be applied to structures of various shapes.

The target organisms whose movement is restricted by the movement restriction sheet 100 are not particularly limited. Examples of the target organisms include arthropods such as insects, spiders, and myriapods, mollusks such as slugs and snails, amphibians such as newts, reptiles such as geckos, mammals such as mice and weasels, and birds such as crows. For example, the target organisms are laboratory animals, pests, and vermin. The movement restriction sheet 100 restricts the movement of the target organisms using the protrusions 120, thereby preventing laboratory animals from escaping and pests or vermin from entering houses.

Many organisms without legs, such as horsefly larvae and slugs, use water or mucus to attach their abdominal parts to walls. For target organisms that exert adhesive or adsorbing forces on walls in this way, the tapered projections described above are considered to be particularly effective. Target organisms that cannot pass between the projections must climb the projections. In this regard, when the projections have a tapered shape, the adhesive area decreases the further the target organism climbs toward the tip of the projection. For this reason, it is very difficult for the target organism to pass through the projections. It is preferable that the projections 120 have a shape at the tip of which the target organism cannot reside. For example, it is preferable that the area of the tip surface of the projections 120 is small enough that the target organism cannot reside on the tip surface.

On the other hand, many organisms with legs, such as insects and spiders, move by hooking the claws of their legs on the minute unevenness of the wall surface. For target organisms that are mechanically held to the wall surface in this way, it is considered effective to have a large number of protrusions to allow the body of the target organism to float from the wall surface. When the body of the target organism is floating from the wall surface, the contact area between the target organism and the base surface is reduced, and the target organism is likely to lose balance when moving on the wall surface. In addition, if the target organism is about to fall from the wall surface, there are relatively fewer places to hook the claws of the legs. In particular, when the movement restriction sheet 100 is arranged vertically, the target organism that has lifted its body off the base surface in an attempt to overcome the uneven structure is likely to fall. For this reason, the movement of the target organism can be significantly restricted by designing the size, shape, and arrangement of the protrusions according to the size and shape of the target organism so that the target organism cannot pass through the protrusion structure unless it lifts its body.

[How to use the movement limiting sheet 100]
Next, a method of using the movement limiting sheet 100 will be described with reference to FIGS.
Fig. 3 shows a state where a movement limiting sheet 100 is attached to a container 10 such as an experimental beaker. The container 10 has a bottom wall 12 and a side wall 14. As shown in Fig. 3, the movement limiting sheet 100 is attached to the inner peripheral surface of the side wall 14. Experimental larvae L are contained inside the container 10. The movement limiting sheet 100 inhibits or prevents the larvae L from climbing up the side wall 14 of the container 10 to escape to the outside. The results of demonstrating the movement limiting effect of the movement limiting sheet 100 in such a case will be described later with reference to an experimental example.

It is preferable that the inner circumferential surface of the peripheral wall 14 of the container 10 is a plane and/or a gently curved surface. For example, when the shape of the container 10 is a cube having four corners when viewed from above, if the corners are right angles or have a large curvature, when the movement limiting sheet 100 is attached to the peripheral wall 14 of the container 10, the bending angle of the movement limiting sheet 100 at the corners becomes steep. In this case, the movement limiting effect may be affected by the fact that the spacing between the protrusions 120 becomes narrower in the plane or the upper surfaces of the protrusions 120 come into contact with each other. Therefore, when using a container 10 having right-angled corners, it is preferable to form a gently curved surface with a small curvature by providing a part having a curved surface as a separate structure on part or the entire corner, such as the curved surface forming part 424 shown in FIG. 9 described later.

Conversely, by attaching the movement limiting sheet 100 to the outer peripheral surface of the side wall 14 of the movement limiting sheet 100, it is possible to suppress or prevent the target organism from entering the inside of the container 10 from the outside.

Figure 4 shows the state where the movement restriction sheet 100 is attached to the side wall 22 of the house 20. The movement restriction sheet 100 is attached under the window 24 of the house 20. This restricts the movement of pests and vermin along the side wall 22 of the house 20, thereby preventing pests and vermin from entering the house 20 through the window 24. In the example shown in Figure 4, the movement restriction sheet 100 is attached to a position under the window 24, but the application location of the movement restriction sheet 100 is not limited to the above example. For example, the movement restriction sheet 100 may be applied to another position of the side wall 22, a window frame, a door, a door frame, or a building foundation of the house 20, or may be applied near other external communication parts such as air vents. The house 20 may be an ordinary house, or may be a national or corporate facility (for example, a food factory, a precision machinery factory, a plant factory, etc.). The movement restriction sheet 100 may be applied to any structure other than the house 20, such as walls, fences, cultivation facilities, balconies, walkways, handrails, and utility poles around the house 20. In addition, the movement restriction sheet 100 is not limited to being applied to completed structures, but may also be applied to building materials used in construction.

Figure 5 shows the state where the movement restriction sheet 100 is attached to the inner peripheral surface 32 of the ventilation opening 30. The cover 34 of the ventilation opening 30 is indicated by a two-dot chain line. By providing the movement restriction sheet 100 inside the ventilation opening 30, it is possible to suppress or prevent pests or vermin from entering the house through the ventilation opening 30. In addition to general ventilation openings 30, the movement restriction sheet 100 can be applied to various piping structures such as water supply pipes, drainage pipes, heating and cooling pipes, and gas pipes in houses and facilities, and to vehicle exhaust ports, etc., that connect the internal space of a building or facility to the external space. In addition, the movement restriction sheet 100 may be applied to any equipment (for example, construction equipment) such as household equipment such as sinks and bathtubs; balcony equipment; furniture such as desks, kitchen shelves, bookshelves, and storage units; and home appliances such as refrigerators.

The movement restriction sheet 100 as described above can prevent the escape or intrusion of the target organism by using a physical structure (i.e., the protrusions 120). As a result, there is essentially no wear over time, unlike with previously used adhesive sheets or drugs. Therefore, there is no need for replacement or replenishment, and once attached, the movement restriction effect can be maintained semi-permanently. In this way, according to this embodiment, it is possible to provide a movement restriction sheet 100 that has a longer-lasting effect than conventional technology.

In addition, because the movement restriction sheet 100 does not require chemicals to restrict the movement of the target organisms, there is no risk of chemicals diffusing into the air or contaminating nearby food, drink, or feed, causing harm to humans and livestock.

Furthermore, the movement limiting sheet 100 is highly versatile because it can be easily attached to existing structures. In particular, when the base 110 is configured as a deformable flexible member, it can be easily attached to structures of various shapes, making it even more versatile.

Second Embodiment
A movement limiting sheet 200 according to the second embodiment will be described with reference to Fig. 6. The movement limiting sheet 200 differs from the movement limiting sheet 100 in that a convex stripe 220 extending in the X direction is provided instead of the protrusion 120. Note that the following mainly describes features unique to this embodiment, and points in common with the above embodiment will not be repeated.
FIG. 6 is a perspective view of a movement limiting sheet 200 according to the second embodiment.

[Configuration of movement limiting sheet 200]
As shown in FIG. 6, the movement limiting sheet 200 has a base 210, a convex stripe portion 220, and an adhesive layer 230. The base 210 and the adhesive layer 230 have the same configuration as the base 110 and the adhesive layer 130 of the first embodiment. The convex stripe portion 220 is a ridge-shaped protrusion that protrudes from the base 210 in the Z direction and extends in the length direction (X direction) of the base 210. In the example shown in FIG. 6, five convex stripe portions 220 that are approximately parallel to each other are provided on the base 210. The cross-sectional shape of the convex stripe portion 220 in a plane parallel to the YZ plane is a tapered shape whose width becomes smaller as it approaches the tip. However, the cross-sectional shape of the convex stripe portion 220 is not limited to this, and may be a shape with a substantially uniform width, or may be an inverse tapered shape whose width becomes larger as it approaches the tip. In addition, any shape can be adopted as long as it can restrict the movement of the target organism.

Unlike the protrusions 120 of the movement restriction sheet 100, the convex rib portion 220 of the movement restriction sheet 200 does not have gaps in the X direction. Therefore, a target organism attempting to pass through the convex rib portion 220 must climb over the convex rib portion 220. By designing the size and shape of the convex rib portion 220 according to the size and movement characteristics of the target organism, a high movement restriction effect can be achieved.

In the example shown in FIG. 6, the convex rib portion 220 is arranged along the X direction, but the arrangement of the convex rib portion 220 is not limited to this. For example, the convex rib portion 220 may be arranged extending along the Y direction, or the convex rib portion 220 may be arranged along a diagonal direction that intersects both the X direction and the Y direction.

Third Embodiment
A movement limiting sheet 300 according to a third embodiment will be described with reference to Fig. 7 and Fig. 8. The movement limiting sheet 300 differs from the movement limiting sheet 100 in that a plurality of recesses 320 are provided instead of the protrusions 120. Note that the following mainly describes features unique to this embodiment, and points in common with the above embodiment will not be repeated.
FIG. 7 is a perspective view of a movement limiting sheet 300 according to the third embodiment.
FIG. 8 is a cross-sectional view of a movement limiting sheet 300 according to the third embodiment taken along line VIII-VIII in FIG.

[Configuration of movement limiting sheet 300]
7 and 8, the movement limiting sheet 300 has a base 310, a recess 320, and an adhesive layer 330. The adhesive layer 330 provided on the second surface 314 of the base 310 has a configuration similar to that of the adhesive layer 130 of the first embodiment. A plurality of recesses 320 are formed on the first surface 312 of the base 310 instead of the protrusions 120. In the example shown in FIG. 7, the recesses 320 are formed as circular bowl-shaped holes.

For example, the distance between two adjacent recesses 320 is smaller than the average body width of the target organism. This prevents the target organism from moving through the gaps between the recesses 320. Because a large number of recesses 320 are formed on the base 310, the target organism cannot stably hold its body on the base 310. Preferably, the first surface 312 of the recess 320 and the concave surface of the recess 320 are discontinuously connected. This configuration is preferable in that it makes it more difficult for the target organism to stably hold its body on the base 310.

Fourth Embodiment
A container 400 according to the fourth embodiment will be described with reference to Fig. 9. The container 400 differs from the container 10 described in relation to the first embodiment in that the container 400 has a protrusion 430 from the beginning instead of the movement limiting sheet 100. Note that the following mainly describes features unique to this embodiment, and points in common with the above-mentioned embodiments will not be repeated.
FIG. 9 is a perspective view of a container 400 according to the fourth embodiment.

[Configuration of container 400]
As shown in FIG. 9, the container 400 has a bottom wall 410, a side wall 420, and a protrusion 430. The side wall 420 extends upward (in the +Z direction) from the periphery of the bottom wall 410. The protrusion 430 is provided on the inner circumferential surface 422 of the side wall 420 and protrudes toward the inside of the container 400. The shape of the protrusion 430 is the same as that of the first embodiment. The protrusion 430 may be formed integrally with the side wall 420, or may be formed separately from the side wall 420 and joined to the side wall 420. In addition, when the container 400 has a corner when viewed from above as shown in FIG. 9, if the corner is a right angle or has a large curvature, it is preferable that the entire inner circumferential surface 422 or at least the portion where the protrusion 430 is provided is designed so that the curvature of the corner is small, for example, by the configuration of the curved surface forming portion 424 shown in FIG. 9. This makes it possible to prevent the movement restriction effect from being affected by the formation of a gap through which the target organism can pass at the corner portion or the upper surfaces of the protrusions 120 coming into contact with each other.

For example, the container 400 is a container that contains a target organism. Since the inner peripheral surface 422 is formed with protrusions 430 for preventing escape, it is possible to suppress or prevent the target organism contained in the container 400 from climbing up the side wall 420 and escaping from the container 400.

For example, the container 400 may be a container for housing a laboratory organism, or may be a trapping device for pests or vermin. If the container 400 is a trapping device (e.g., an insect trap), for example, a substance or mechanism that attracts the target organism may be provided inside the container 400. For example, if a winged insect flies into the trapping device, there is not enough space for it to fly inside the container 400, and even if it tries to climb up the side wall 420 to exit, the protrusions 430 may prevent it from moving up the side wall 420. As a result, an insect that has once entered the container 400 can be captured inside the container 400.

Fifth Embodiment
A window frame 500 according to the fifth embodiment will be described with reference to Fig. 10. Note that the following mainly describes features unique to this embodiment, and points in common with the above-mentioned embodiment will not be repeated.
FIG. 10 is a perspective view of a window frame 500 according to the fifth embodiment.

[Configuration of window frame 500]
As shown in Fig. 10, the window frame 500 has a frame 510 and protrusions 520. The frame 510 is composed of a combination of an upper member, a lower member, a left member, and a right member so as to surround the window from all sides. The lower member of the frame 510 is provided with a large number of protrusions 520 across the entire width of the frame 510. This configuration makes it difficult for target organisms such as pests and vermin to climb over the lower member of the window frame 500 and reach the window. Therefore, the window frame 500 with the protrusions 520 can suppress or prevent the intrusion of target organisms into the house.

This configuration is not limited to window frames 500, but can also be realized in any construction (including building materials), piping structures, house equipment, balcony equipment, furniture, home appliances, and other equipment. In other words, by providing a large number of protrusions 520 on the side wall surface of a construction or equipment, it is possible to suppress or prevent the target organism from moving along the side wall surface.

<Modification>
In the above embodiment, an example in which the protrusions or recesses are formed in multiple rows has been described, but the present invention is not limited to the above example. For example, only one row of protrusions or recesses may be provided. In fact, in the following experimental example, it was observed that the larvae of American soldier fly tried to pass through the protrusions but could not pass even the first row.

In the above embodiment, an example in which the protrusions protrude perpendicularly to the substrate surface or the wall surface has been described, but the present invention is not limited to the above example. For example, protrusions protruding in another direction, such as diagonally, may be provided. For example, a configuration in which the protrusions protrude diagonally downward may make it more difficult for the target organism to pass over the protrusions. For example, the uneven pattern formed on the movement restriction sheet, or the side wall of the container, building, or facility, may have and include protrusions protruding diagonally to the substrate surface or the wall surface instead of or in addition to protrusions protruding perpendicularly to the substrate surface or the wall surface. The angle between such protrusions protruding diagonally and the substrate surface or the wall surface is, for example, more than 0 degrees and less than 90 degrees, 10 degrees or more and 60 degrees or less, or 20 degrees or more and 45 degrees or less. According to such a configuration, by arranging the protrusions so that they face diagonally downward, the protrusions can form a return structure on the wall surface, making it more difficult for the target organism to climb the wall surface.

In the above embodiment, an example in which each protrusion is formed individually on the base surface has been described, but the present invention is not limited to the above example. For example, a layer having a large number of protrusions on its surface may be formed on the base surface. In this case, another layer is formed on the first surface of the base, and a large number of protrusions are formed on the surface of that layer opposite the base. The movement limiting sheet may further include layers other than the base layer, adhesive layer, and the protrusion layer as described above.

In the above embodiment, an example in which the base has a flat shape has been described, but the present invention is not limited to the above example. For example, the base may have a structure in which the thickness increases from one end to the other end in the width direction. If a movement limiting sheet having a base with such a structure is attached to a wall surface with the thick side of the base on top and the thin side of the base on the bottom, it may become more difficult for the target organism to climb the wall surface. In addition, as will be described with reference to FIG. 14 in Experimental Example 6 described later, the base may be configured so that a part of it floats from the wall surface. For example, the movement limiting sheet may be configured so that the base is bent between the first part and the second part, and when the first part is attached to the wall surface, the second part is separated from the wall surface. The angle between the second part and the wall surface is, for example, more than 0 degrees and less than 90 degrees, 10 degrees or more and 60 degrees or less, or 20 degrees or more and 45 degrees or less. With such a configuration, the second part can form a return structure on the wall surface, making it more difficult for the target organism to climb the wall surface.

In the above embodiment, a movement limiting sheet that can be attached to a structure via an adhesive layer has been described, but the present invention is not limited to the above example. For example, the movement limiting sheet can be attached to a structure by a separate adhesive means such as tape, a mechanical fixing means such as a bolt or a locking structure, or by any joining method such as welding or fusion.

The configurations described for each embodiment can be combined in any way. For example, both the protrusions and the recesses may be formed on the base of the movement limiting sheet.

The present invention will be explained below using experimental examples, but the present invention is not limited to the following experimental examples.

<Experimental Example 1>
A travel limiting sheet having many protrusions as shown in FIG. 1 was produced by a 3D printer. The substrate and protrusions were integrally molded using polylactic acid (PLA) as the material. An adhesive layer was formed on the surface of the substrate on which the protrusions were not provided. The substrate had a thickness of 0.4 mm and a width of 20 mm, and was cut to the required length. The shape of each protrusion was a truncated cone with a bottom diameter of 1.5 mm, a top diameter of 0.9 mm, and a height of 1.5 mm. The distance between two adjacent protrusions (i.e., the shortest distance between adjacent protrusions) was 0.5 mm.

As shown in Figure 3, a movement restriction sheet was attached around the inner circumference of the container. Twenty 7-day-old American soldier fly larvae (approximately 5 mm in size) were placed in the bottom of the container along with 10 mL of an aqueous solution of artificial food. This state was maintained for 72 hours, with 10 mL of water being replenished every 24 hours. The temperature was 25°C, the humidity was 40% to 70%, and the photoperiod was 12L:12D. The number of larvae remaining in the container 72 hours after the start of the experiment was counted, and this was divided by the initial number of larvae (20) to calculate the survival rate. This experiment was repeated three times, and the average survival rate was calculated.

The above experiment was also performed on 10-day-old larvae (approximately 10 mm in size) and 20-day-old larvae (approximately 20 mm in size).

<Experimental Example 2>
The average survival rates of 7-day-old, 10-day-old, and 20-day-old black soldier fly larvae were calculated in the same manner as in Experimental Example 1, except that the distance between two adjacent protrusions was 1.5 mm.

<Experimental Example 3>
The average survival rates of 7-day-old, 10-day-old, and 20-day-old American soldier fly larvae were calculated in the same manner as in Experimental Example 1, except that the distance between two adjacent protrusions was set to 2.5 mm.

<Experimental Example 4>
The average survival rates of 7-day-old, 10-day-old, and 20-day-old American soldier fly larvae were calculated in the same manner as in Experimental Example 1, except that a movement-limiting sheet consisting of only a substrate without any protrusions was used.

<Experimental Example 5>
The average survival rates of 7-day-old, 10-day-old, and 20-day-old American soldier fly larvae were calculated in the same manner as in Experimental Example 1, except that the movement-restricting sheet was not used.

<Results of Experimental Examples 1 to 5>
Fig. 11 is a graph showing the average survival rate of 7-day-old larvae in Experimental Examples 1 to 5. In the figure, "control" indicates Experimental Example 5 in which no movement-limiting sheet was used, "substrate only" indicates Experimental Example 4 in which no protrusions were formed, and "0.5 mm spacing", "1.5 mm spacing", and "2.5 mm spacing" indicate Experimental Examples 1 to 3, respectively. Similarly, Fig. 12 is a graph showing the average survival rate of 10-day-old larvae in Experimental Examples 1 to 5. Fig. 13 is a graph showing the average survival rate of 20-day-old larvae in Experimental Examples 1 to 5.

As can be seen from Figure 11, 7-day-old larvae had little tendency to move in the first place, and the survival rate was relatively high in all experimental examples. 10- and 20-day-old larvae tended to move actively. In fact, as shown in Figures 12 and 13, the average survival rate of 10- and 20-day-old larvae in the "control" and "substrate only" was low. This means that many larvae climbed the walls and escaped from the container. On the other hand, a high escape inhibition effect was confirmed in experimental examples 1 to 3, which used a movement restriction sheet with protrusions formed on the substrate. In addition, the narrower the spacing between the protrusions, the higher the escape inhibition effect. This is thought to be because when the spacing between the protrusions is narrow, it becomes difficult for the American soldier fly larvae to pass between the protrusions and escape.

<Experimental Example 6>
FIG. 14 is a perspective view showing the configuration of the movement limiting sheet 600 of Experimental Example 6. As shown in FIG. 14, a movement limiting sheet 600 was produced in which the base 610 was folded at the center in the width direction. The folding angle was about 30 degrees. The base 610 was divided into an upper part and a lower part in which a large number of protrusions 620 were formed, with the folded part as the boundary. The movement limiting sheet 600 was attached to the wall by fixing the upper part of the movement limiting sheet 600 to the wall. The lower part of the movement limiting sheet 600 was placed away from the wall in a folded state from the upper part. The distance between the tip edge of the lower part and the wall was about 8 mm. This movement limiting sheet 600 forms a downward turn. A pillbug was made to climb the wall from under the movement limiting sheet 600, and the climbing suppression effect of the movement limiting sheet 600 was verified.

The pill bug climbed up the wall and entered under the barb formed by the lower part of the movement limiting sheet 600. Generally, pill bugs use the antennae on their heads to sense objects in front of them, but since the tips of the barbs are at a height that exceeds the range of movement of the antennae, it is thought that the pill bug was unable to sense the barb. When the pill bug then entered the barb, its antennae came into contact with the underside of the barb and the pill bug sensed its presence. However, since the pill bug's body can only bend forward and there is not enough space inside the barb, it was unable to arch its back and crawl along the underside of the barb. In the end, the pill bug was unable to get over the movement limiting sheet 600, and was observed to remain under the barb or climb down the wall.

100, 200, 300, 600...Movement limiting sheet 110, 210, 310, 610...Base body 120...Protrusion 130, 230, 330...Adhesive layer 220...Convex strip portion 320...Recess 400...Container 430...Protrusion 500...Window frame 520...Protrusion 620...Protrusion

Claims (15)

A movement restriction sheet for restricting the movement of a target organism,
The present invention includes a sheet-like substrate having a concave-convex structure,
The uneven structure restricts the target organism from moving along the substrate.
Movement restriction sheet. The uneven structure is arranged so as to float the body of the target organism attempting to pass through the uneven structure from the surface of the base.
The movement limiting sheet according to claim 1 . The uneven structure includes a plurality of protrusions formed on the substrate.
The movement limiting sheet according to claim 1 or 2. The protrusion has a tapered shape.
The movement limiting sheet according to claim 3 . The protrusion has a frustum shape.
The movement limiting sheet according to claim 3 . The distance between adjacent protrusions is 0.1 mm or more and 200 mm or less.
The movement limiting sheet according to claim 3 . The height of the protrusion is 0.1 mm or more and 200 mm or less.
The movement limiting sheet according to claim 3 . The uneven structure is a pattern in which unevenness is regularly arranged.
The movement limiting sheet according to claim 1 or 2. the substrate has a first surface and a second surface;
The uneven structure is formed on the first surface,
An adhesive layer is formed on the second surface.
The movement limiting sheet according to claim 1 or 2. The substrate is a deformable flexible member.
The movement limiting sheet according to claim 1 or 2. A method for manufacturing a container for restricting movement of a target organism, comprising:
In a container having a side wall, the method includes attaching the movement limiting sheet according to claim 1 or 2 to the side wall.
A method for manufacturing a container. A method for manufacturing a structure or facility for restricting the movement of a target organism, comprising:
In a building or facility having a side wall, the method includes attaching the movement limiting sheet according to claim 1 or 2 to the side wall,
A method for manufacturing a structure or facility. A container for restricting the movement of a target organism,
A side wall having a concave-convex structure is provided,
The uneven structure restricts the target organism from moving along the wall surface of the side wall.
container. The container contains the target organism therein,
The uneven structure is provided on the inner peripheral surface of the side wall and suppresses the target organism in the container from escaping from the container.
14. The container of claim 13. A structure or facility that restricts the movement of target organisms,
A side wall having a concave-convex structure is provided,
The uneven structure restricts the target organism from moving along the wall surface of the side wall.
Buildings or facilities.

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