Plant repellent member

Abstract

To provide a plant repellent member capable of maintaining plant repellent effect for a long term.SOLUTION: A plant repellent member of the invention includes a body 1 composed of a molded article in the shape of a mesh sheet of a resin including therein a repellent material against ivy-like plants. The body 1 can include a microcapsule with the repellent material incorporated therein. The body 1 includes a real part 10 that compartmentalizes a plurality of through holes 10a. A percentage of an area of the real part 10 to a unit area of the body 1 can be set to 0.5 or less.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a plant repellent member for preventing climbing plants from climbing on structures such as fences.

Background Art

[0002] As this type of conventionally used plant repellent member, for example, the configuration shown in Patent Document 1 below can be cited. That is, the conventional configuration is composed of a mesh knitted fabric made of polyester multifilament yarns and an anti-climbing sheet composed of an anti-climbing layer provided on the front and back surfaces of the mesh knitted fabric. The anti-climbing layer is formed by containing a plant repellent material in a resin layer.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the conventional configuration as described above, since the anti-climbing layer containing the climbing repellent material in the resin layer is provided on the front and back surfaces of the mesh knitted fabric, the amount of the repellent material held is small or the holding force of the repellent material is small, so the plant repellent effect is short.

[0005] The present invention has been made to solve the above problems, and an object thereof is to provide a plant repellent member capable of maintaining a long plant repellent effect.

Means for Solving the Problems

[0006] The plant repellent member according to the present invention includes a main body made of a resin mesh sheet-shaped molded product in which a repellent material against climbing plants is blended.

Effects of the Invention

[0007] According to the plant repellent member of the present invention, since it includes a main body made of a resin mesh sheet molded product in which a repellent for vine plants is blended, at least one of the holding amount and the holding force of the repellent can be improved compared to the conventional configuration, and the plant repellent effect can be maintained for a long time.

Brief Description of the Drawings

[0008]

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Modes for Carrying Out the Invention

[0009] Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. The present invention is not limited to each embodiment, and components can be modified and embodied without departing from the gist thereof. Further, various inventions can be formed by appropriately combining a plurality of components disclosed in each embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, components of different embodiments may be appropriately combined.

[0010] Embodiment 1. FIG. 1 is a perspective view showing a plant repellent member according to Embodiment 1 of the present invention, FIG. 2 is a front view showing the plant repellent member of FIG. 1, FIG. 3 is a side view of the plant repellent member of FIG. 1, and FIG. 4 is an explanatory view for explaining the dimensions of the main part 10 of FIG. 1.

[0011] In FIGS. 1 to 3, for the sake of explanation, the plant repellent member is shown as having an outer shape of a square with a side of 20 mm when viewed from the front. However, the outer shape of the plant repellent member is arbitrary and may have an extension (which may be continuous) in at least one of the first direction D1 (horizontal direction) and the second direction D2 (vertical direction) shown in the figure. The first and second directions D1 and D2 are directions orthogonal to each other. Also, in FIG. 3, the plant repellent member is shown as having a thickness of 3 mm. However, the thickness of the plant repellent member can be arbitrarily changed.

[0012] The plant repellent member of the present embodiment shown in FIGS. 1 to 3 is for preventing climbing plants from climbing on a structure, and is attached to and used on the structure.

[0013] Although not limited, the structure can be, for example, a fence surrounding the perimeter of a wireless tower, a substation, a distribution station, a power transmission station, and an ungraded site. In particular, the structure can be a lattice-shaped, net-shaped, or mesh-shaped fence for which ventilation and / or visibility is expected. Ventilation can be the property that wind can pass through the fence with little resistance. Visibility can be the property that it is easy to visually recognize the inside of the fence through the fence.

[0014] The vine-like plant can be a plant such as a vine or a twining plant typified by morning glory or bindweed. The vine-like plant has a spontaneous gravitropism and includes a twining type such as morning glory that twines around an object by the rotational movement of tendrils homologous to leaves and shoot axes, and a climbing type such as ivy that attaches sucker-like adventitious roots to the surface of the object and climbs on the object. Therefore, in the present application, both "twining" and "climbing" are referred to as "climbing up".

[0015] As shown in FIGS. 1 to 3, the plant repellent member of the present embodiment has a main body 1 made of a resin mesh sheet-shaped molded product in which a repellent for vine-like plants is blended.

[0016] The repellent is a material (substance) that vine-like plants avoid. Examples of the repellent include prebentol, etc., but other materials may be used.

[0017] The main body 1 can extend in a planar shape. The plant repellent member of the present embodiment can be arranged so that the main body 1 is along the surface of a structure (or a fence) and attached to the structure. By blending the repellent in the resin constituting the main body 1, vine-like plants are prevented from climbing up the main body 1 and the structure.

[0018] The method of attaching the main body 1 to the structure is arbitrary. For example, the main body 1 can be attached to the structure by a binding band, a binding wire, or the like. Also, the arrangement position of the main body 1 is arbitrary. For example, one end of the main body 1 may be arranged to coincide with the lower end of the structure, or one end of the main body 1 may be arranged to be located on the ground.

[0019] As described above, the main body 1 is formed by molding a resin containing a repellent into a mesh sheet shape. That is, in the present embodiment, the resin (itself) containing the repellent forms a mesh sheet. Therefore, compared with the conventional configuration (a configuration in which a repellent is contained in a resin layer provided on the front and back surfaces of a mesh woven fabric), at least one of the holding amount and the holding force of the repellent can be improved, and the repellent effect on plants can be maintained for a long time.

[0020] For the molding of the main body 1, for example, a method of softening a resin containing a repellent and then solidifying it in a state of forming a predetermined shape, such as extrusion molding or injection molding, can be adopted. As the resin used for the molding of the main body 1, for example, an olefin-based resin or the like can be used.

[0021] Each part of the main body 1 can be a solid structure of a resin containing a repellent. The main body 1 does not necessarily have a core material for supporting the resin. However, it is sufficient that each part of the main body 1 is substantially constituted by a resin containing a repellent, and other materials or substances other than the resin containing a repellent may be included in each part of the main body 1. For example, if the area ratio of the resin (the resin containing a repellent) in the cross section of each part of the main body 1 exceeds 50%, it may be considered that each part of the main body 1 is substantially constituted by the resin containing a repellent. The area ratio of the resin in the cross section is preferably 70% or more, more preferably 80% or more, and even more preferably 90% or more. If a core material is provided, as the core material, a resin or metal having rigidity equal to or higher than that of the resin containing a repellent can be used.

[0022] The main body 1 may have microcapsules containing a repellent. That is, the repellent may be directly blended in the resin (in a state not encapsulated in microcapsules), or may be blended in the resin in a state encapsulated in microcapsules. A part of the repellent may be blended in the resin in a state encapsulated in microcapsules, and the other repellent may be directly blended in the resin.

[0023] Microcapsules can be composed of inorganic or organic substances. Examples of inorganic substances include silica and calcium silicate. When microcapsules are composed of inorganic substances, they can be porous particles, and the repellent material encapsulated (adsorbed) in the porous particles can be gradually secreted. When microcapsules are composed of organic substances, they can be a container body composed of a thin film, and the repellent material stored inside can be secreted when the container body is crushed. Microcapsules may be composed of one kind of substance or two or more kinds of substances. For example, microcapsules may be composed of both silica and calcium silicate. When microcapsules are composed of two or more kinds of substances, microcapsules can be separately composed of those substances, and those microcapsules can be separately blended into a resin. The encapsulation rate of the repellent material in the microcapsules is not limited, but it is preferably 30% or more and 80% or less. By having an encapsulation rate of 30% or more, a high repellent effect can be ensured, and by having an encapsulation rate of 80% or less, stickiness of the microcapsules can be suppressed and difficulties in the blending operation into the resin can be avoided. The encapsulation rate may be understood as the mass of the repellent material in the total mass of the microcapsules. The type and amount of microcapsules can be adjusted according to implementation conditions such as the duration of the repellent effect (target period).

[0024] The main body 1 has a solid part 10 that partitions and forms a plurality of through-holes 10a. The solid part 10 is a part composed of a resin blended with a repellent material. Particularly, as shown in FIGS. 1 and 2, the solid part 10 of the present embodiment has a first linear part 11 that extends in the first direction D1 while being spaced apart from each other in the second direction D2, and a second linear part 12 that extends in the second direction D2 while being spaced apart from each other in the first direction D1. In the present embodiment, the first linear part 11 extends linearly in the first direction D1, and the second linear part 12 extends linearly in the second direction D2. The through-hole 10a of the present embodiment has a rectangular outer shape when viewed from the front, and is arranged in alignment with respect to both the first and second directions D1 and D2.

[0025] It is preferable that the ratio of the area of the solid part 10 to the unit area of the main body 1 is 0.5 or less (in other words, it is preferable that the aperture ratio due to the through-hole 10a is 50% or more). Thereby, the visibility and ventilation of the main body 1 can be ensured. This configuration is particularly useful when the object to which the plant repellent member is attached is a structure where ventilation and / or visibility is expected. In particular, by ensuring ventilation, it is possible to avoid, for example, a large wind pressure load being applied to the plant repellent member and the structure during strong winds. The area of the solid part 10 may be the area of the shadow (projection area) formed when light is applied from the front of the main body 1.

[0026] More preferably, the ratio of the area of the solid part 10 to the unit area of the main body 1 is 0.4 or less, and even more preferably 0.3 or less. The visibility and ventilation of the main body 1 and the structure can be ensured more reliably. On the other hand, it is preferable that the ratio of the area of the solid part 10 to the unit area of the main body 1 is 0.1 or more. This is for the strength and self-standing property of the main body 1. More preferably, the ratio of the area of the solid part 10 is 0.15 or more, and even more preferably 0.2 or more.

[0027] Here, as shown in FIG. 4, let the inner dimension of the solid part 10 in the first direction D1 surrounding one through-hole 10a be a (mm), the inner dimension of the solid part 10 in the second direction D2 be b (mm), the outer dimension of the solid part 10 in the first direction D1 be c (mm), and the outer dimension of the solid part 10 in the second direction D2 be d (mm). It may be understood that a and b are the dimensions of the through-hole 10a in the first and second directions D1 and D2.

[0028] At this time, it is preferable to satisfy 2ab ≧ cd. This may be synonymous with the aperture ratio due to the through-hole 10a being 50% or more. Also, a ≧ 5 mm and b ≧ 5 mm, and 2500 mm 2 ≧ ab ≧ 100 mm 2 It is preferable to satisfy. By satisfying these, the visibility and ventilation of the main body 1 can be ensured more reliably. More preferably, a ≧ 20 mm and b ≧ 20 mm, and even more preferably a ≧ 30 mm and b ≧ 30 mm. Also, 1600 mm 2 ≧ ab ≧ 400 mm2 is more preferably, 1000 mm 2 ≧ab≧500 mm 2 is even more preferably.

[0029] The area of the solid part 10 in a cross section orthogonal to the extending direction of the solid part 10 (the cross-sectional areas of the first and second linear parts 11, 12) is 4 mm 2 or more is preferable. This is for improving the holding force of the repellent material. The area of the solid part 10 is 6 mm 2 or more is more preferable, and 10 mm 2 or more is even more preferable. Also, the area of the solid part 10 is preferably 25 mm 2 or less. The weight of the main body 1 can be suppressed. Also, the hardness of the main body 1 can be moderately suppressed, and the attachment work of the plant repellent member can be facilitated. The area of the solid part 10 is preferably 20 mm 2 or less is more preferable, and 16 mm 2 or less is even more preferable.

[0030] The tensile strength of the solid part 10 is preferably 80 N or more and 700 N or less. An appropriate strength can be given to the solid part 10, and the attachment work of the plant repellent member can be facilitated. The tensile strength of the solid part 10 is more preferably 200 N or more. Also, the tensile strength of the solid part 10 is more preferably 500 N or less, and even more preferably 400 N or less.

[0031] The tensile strength of the solid part 10 can be measured by the tensile test shown in FIG. 5. That is, from the finished product of the plant repellent member, a test piece 50 as shown in FIG. 5 (a test piece having seven through holes 10a) is taken, a φ3 mm binding wire 51 is passed through the test piece 50, and the binding wire 51 and the lower part of the test piece 50 are respectively fixed to a chuck (not shown). Then, the test piece 50 is pulled by pulling up the binding wire 51 or pulling down the test piece 50, the maximum load until the test piece 50 is damaged is measured, and the maximum load is taken as the tensile strength of the solid part 10. However, the pulling speed of the test piece 50 is 200 mm / min.

[0032] In a plant repellent member such as the present embodiment, since the main body 1 is composed of a resin mesh sheet-shaped molded product in which a repellent for vine plants is blended, at least one of the holding amount and the holding force of the repellent can be improved compared with the conventional configuration, and the plant repellent effect can be maintained for a long time.

[0033] Further, since the main body 1 has microcapsules containing the repellent, the holding force of the repellent can be more reliably improved, and the plant repellent effect can be maintained for a longer time.

[0034] Further, since the ratio of the area of the solid part 10 in the unit area of the main body 1 is 0.5 or less, the visibility and ventilation of the main body 1 can be ensured. This configuration is particularly useful when the object to which the plant repellent member is attached is a structure where ventilation and / or visibility is expected.

[0035] Embodiment 2. FIG. 6 is a front view showing a plant repellent member according to Embodiment 2 of the present invention. In Embodiment 1, it was described that a plurality of through holes 10a partitioned by the solid part 10 are arranged in alignment with respect to both the first and second directions D1 and D2 (see, for example, FIG. 2 etc.). However, as shown in FIG. 6, the plurality of through holes 10a may be arranged in a staggered manner.

[0036] The solid part 10 of the present Embodiment 2 partitions and forms a first through hole row 21, a second through hole row 22, and a third through hole row 23. These first to third through hole rows 21 to 23 are rows of through holes 10a linearly arranged in the first direction D1 adjacent to each other in order in the second direction D2. The first and second through hole rows 21 and 22 (and the second and third through hole rows 22 and 23) adjacent to each other are provided such that the central positions of the respective through holes 10a in the first direction D1 are shifted from each other in the first direction D1. The first and third through hole rows 21 and 23 may be provided such that the central positions of the respective through holes 10a in the first direction D1 coincide with each other in the first direction D1, or may be shifted from each other.

[0037] The second line portion 12 of the second embodiment is divided by the through holes 10a with respect to the second direction D2. In other words, between the second line portion 12 that partitions and forms the through holes 10a of the first through hole row 21 and the second line portion 12 that partitions and forms the through holes 10a of the third through hole row 23, the through holes 10a of the second through hole row 22 are located. Other configurations are the same as those of the first embodiment.

[0038] In the plant repellent member as in the second embodiment, since the second line portion 12 is divided by the through holes 10a with respect to the second direction D2, even if a vine-like plant tries to wind up the second line portion 12 in the second direction D2, the through holes 10a can inhibit the winding up of the vine-like plant.

[0039] Embodiment 3. FIG. 7 is a front view showing a plant repellent member according to Embodiment 3 of the present invention, and FIG. 8 is an explanatory view for explaining the dimensions of the actual part 10 of FIG. 7. In Embodiments 1 and 2, the through hole 10a has been described as having a rectangular outer shape when viewed from the front, but the through hole 10a may have other polygonal outer shapes. The actual part 10 of the third embodiment partitions and forms a plurality of hexagonal through holes 10a arranged in a tortoise shell shape.

[0040] The actual part 10 of the third embodiment has a plurality of second line portions 12 that are spaced apart from each other in the first direction D1 and the second direction D2 and extend in the second direction D2, and a plurality of connection line portions 13 that extend between the ends of the second line portions 12 while being inclined with respect to the first and second directions D1 and D2 to connect between the ends of the second line portions 12.

[0041] As shown in Fig. 8, when the through-hole 10a is hexagonal in a front view, the inner dimension (a) of the main part 10 in the first direction D1 can be the distance between the inner ends of a pair of second linear parts 12 located on both sides of one through-hole 10a, and the outer dimension (c) of the main part 10 in the first direction D1 can be the distance between the outer ends of those pair of second linear parts 12. The inner dimension (b) of the main part 10 in the second direction D2 can be the distance between the first angle 131a formed by the first connecting linear part pair 131 and the second angle 132a formed by the second connecting linear part pair 132. The outer dimension (d) of the main part 10 in the second direction D2 can be the distance between one end 12a of the second linear part 12 to which the first connecting linear part pair 131 is connected and one end 12b of the second linear part 12 to which the second connecting linear part pair 132 is connected. Other configurations are the same as those in Embodiments 1 and 2.

[0042] In this way, the through-hole 10a may have an outer shape of a polygon other than a rectangle. In Fig. 7, a hexagonal through-hole 10a is shown, but the outer shape of the through-hole 10a may be a triangle, a pentagon, or a more complex polygon having 7 or more corners.

[0043] Also, since the main part 10 partitions and forms a plurality of hexagonal through-holes 10a arranged in a tortoise shell shape, each linear part (the second linear part 12 and the connecting linear part 13) of the main part 10 can be divided by the through-holes 10a in both the first and second directions D1 and D2, and the climbing of vine plants can be inhibited more reliably by the through-holes 10a.

[0044] Embodiment 4. Fig. 9 is a front view showing a plant repellent member according to Embodiment 4 of the present invention, and Fig. 10 is a front view showing a modified example of the plant repellent member of Fig. 9. As shown in Figs. 9 and 10, the through-hole 10a may be circular. The circular through-holes 10a may be arranged in alignment in both the first and second directions D1 and D2 as shown in Fig. 9, or may be arranged in a staggered pattern as shown in Fig. 10. Other configurations are the same as those in Embodiments 1 to 3.

[0045] Thus, the through-hole 10a may be circular. In FIGS. 9 and 10, the through-hole 10a is shown as a perfect circle, but the through-hole 10a may be elliptical. Further, the through-hole 10a may have other shapes such as a polygon with rounded corners.

Explanation of Signs

[0046] 1: Main body 10: Real part 10a: Through-hole

Claims

1. A main body made of a resin mesh sheet-shaped molded product containing a repellent material for vine plants comprising: The main body has a solid part that defines and forms a plurality of hexagonal through-holes arranged in a tortoise shell shape, The solid part has a plurality of linear parts that are spaced apart from each other in a first direction and a second direction perpendicular to each other and extend in the second direction, and a plurality of connecting linear parts that extend between the ends of the linear parts while being inclined with respect to the first and second directions and connect between the ends of the linear parts. One of the through-holes is formed by a pair of the linear parts, a first pair of connecting linear parts extending from one end of the pair of linear parts, and a second pair of connecting linear parts extending from the other end of the pair of linear parts. The inner dimension a of the solid part in the first direction is defined as the distance between the inner ends of a pair of the linear parts located on both sides of the one through-hole, The outer dimension c of the solid part in the first direction is defined as the distance between the outer ends of the pair of linear parts, The inner dimension b of the solid part in the second direction is defined as the distance between a first angle formed by the first pair of connecting linear parts and a second angle formed by the second pair of connecting linear parts, When the outer dimension d of the solid part in the second direction is defined as the distance between one end of the linear part where the first pair of connecting linear parts are connected outside the first angle and one end of the linear part where the second pair of connecting linear parts are connected outside the second angle, 2ab ≥ cd, a ≥ 5 mm and b ≥ 5 mm, and 2500 mm² ≥ ab ≥ 100 mm² are satisfied, The area of the solid part in a cross-section perpendicular to the extending direction of the solid part is 4 mm² or more and 25 mm² or less, A plant repellent member, When a test piece of 7 meshes having the through-hole is taken from the plant repellent member, a φ3 mm binding wire is passed through the test piece, and after the binding wire and the lower part of the test piece are respectively fixed to a chuck, the test piece is pulled at a tensile speed of 200 mm / min by pulling up the binding wire or pulling down the test piece, and when the maximum load until the test piece breaks is defined as the tensile strength of the solid part, the tensile strength of the solid part is 200 N or more and 400 N or less. Plant repellent member.

2. The main body has microcapsules containing the repellent material, The plant repellent member according to Claim 1.

3. The main body has a solid part that defines and forms a plurality of through-holes, The ratio of the area of the solid part to the unit area of the main body is 0.5 or less. The plant repellent member according to claim 1 or claim 2.

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