JP7381157B1 - Plant growth suppression structure - Google Patents
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- JP7381157B1 JP7381157B1 JP2023152328A JP2023152328A JP7381157B1 JP 7381157 B1 JP7381157 B1 JP 7381157B1 JP 2023152328 A JP2023152328 A JP 2023152328A JP 2023152328 A JP2023152328 A JP 2023152328A JP 7381157 B1 JP7381157 B1 JP 7381157B1
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- 230000008635 plant growth Effects 0.000 title claims abstract description 27
- 206010053759 Growth retardation Diseases 0.000 title description 5
- 238000005192 partition Methods 0.000 claims abstract description 25
- 241000196324 Embryophyta Species 0.000 abstract description 40
- 238000010586 diagram Methods 0.000 abstract description 5
- 239000002689 soil Substances 0.000 description 8
- 230000005484 gravity Effects 0.000 description 7
- 230000012010 growth Effects 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000004567 concrete Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000011178 precast concrete Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Abstract
【課題】構造物同士の隙間から入り込んだ植物の根が当該構造物から横方向へ延びていくのを抑制する植物生育抑制構造を提供する。【解決手段】植物生育抑制構造は、他の構造物と接する境界面において、上面から断面Ｖ字状に切り抜いたように縦の切欠面と、前記切欠面の下端から斜め上へ前記境界面に抜ける傾斜面が形成されるブロック構造物であって、前記傾斜面から前記切欠面へ上端を水平に隙間が生じないように一体成形した隔壁を長手方向へ間欠的に複数設けた、ことを特徴とする。【選択図】図１An object of the present invention is to provide a plant growth suppressing structure that suppresses plant roots that have entered through gaps between structures from extending laterally from the structures. [Solution] The plant growth suppressing structure has a vertical cutout surface cut out from the upper surface in a V-shaped cross section at the boundary surface in contact with another structure, and a vertical cutout surface cut out from the upper surface in a V-shaped cross section, and a vertical cutout surface extending diagonally upward from the lower end of the cutout surface to the boundary surface. A block structure in which an inclined surface is formed, and a plurality of partition walls are provided intermittently in the longitudinal direction, the upper ends of which are integrally molded horizontally from the inclined surface to the cutout surface so that no gaps are formed. shall be. [Selection diagram] Figure 1
Description
本発明は、ブロック等の構造物同士の隙間に雑草などの植物の根が育成されるのを抑制する植物生育抑制構造に関する。 The present invention relates to a plant growth suppressing structure that suppresses the roots of plants such as weeds from growing in gaps between structures such as blocks.
構造物には、アスファルトで舗装された道路や、縁石・側溝などのコンクリートブロック、車道と歩道などを仕切る境界ブロックなどがある。これらの構造物の境界には隙間が生じてしまうので、構造物の下の土壌に植物が存在すると、植物の茎が太陽などの光に向かって伸び、構造物の隙間に沿って表面まで出てくる。また、隙間に植物の種子が入り込むと、そこから根や茎を延ばして表面に出てくる。植物は、重力方向に根を延ばす性質があり、土壌に達すればそこから水分や栄養分を吸収して生長する。 Structures include asphalt-paved roads, concrete blocks for curbs and gutters, and boundary blocks that separate roadways and sidewalks. Gaps occur at the boundaries of these structures, so if plants are present in the soil beneath the structures, the plant stems will grow toward the sun and other light, extending to the surface along the gaps between the structures. It's coming. Also, if a plant seed gets into the gap, it will grow roots and stems and come to the surface. Plants have the property of extending their roots in the direction of gravity, and once they reach the soil, they absorb water and nutrients from there and grow.
特許文献１～３に記載されているように、構造物間の隙間を塞ぐなど隙間が直線状にならないようにすることで、雑草の成長を抑制する発明も開示されている。さらに、特許文献４に記載されているように、路面の雨水等を流すための金属製の排水溝に、雑草の繁殖を抑制する部分を設けたものもある。 As described in Patent Documents 1 to 3, inventions have also been disclosed in which the growth of weeds is suppressed by blocking the gaps between structures to prevent the gaps from becoming linear. Furthermore, as described in Patent Document 4, there is a metal drainage ditch for draining rainwater and the like from the road surface, which is provided with a part that suppresses the growth of weeds.
しかしながら、特許文献４に記載の路面用排水溝は、雑草抑制部の断面形状をＶ字又はＷ字にすることで植物の根が下方へ延びるのを抑制しているが、当該路面用排水溝は金属製であるため、間欠的に複数の補強板を溶接して強度を向上させている他、雑草抑制部に水が溜まらないように谷部透水孔と山部透水孔が空けられている。補強板の下端は、水を通すために隙間が空いており、植物の根が横方向に延びて、さらに透水孔を介して土壌に植物の根が延びていく可能性がある。 However, in the road surface drainage ditch described in Patent Document 4, the cross-sectional shape of the weed suppressing part is V-shaped or W-shaped to suppress the roots of plants from extending downward; Since it is made of metal, multiple reinforcing plates are intermittently welded to improve its strength, and water permeability holes in the valleys and peaks are drilled to prevent water from accumulating in the weed suppression area. . The lower end of the reinforcing plate has a gap to allow water to pass through, allowing plant roots to extend laterally and further into the soil through the water permeation holes.
コンクリート等のブロック構造物の場合でも、植物の根が横方向（隣接する構造物との境界線と平行に縦断する方向）に延びていけば隙間から土壌に達するおそれがあるので、植物の根を延ばしづらい方向に誘導して生育するのを抑制する必要がある。 Even in the case of block structures such as concrete, if the roots of plants extend laterally (in the longitudinal direction parallel to the boundary line with the adjacent structure), they may reach the soil through the gaps, so plant roots may It is necessary to control the growth by guiding it in a direction where it is difficult to spread.
そこで、本発明は、構造物同士の隙間から入り込んだ植物の根が当該構造物から横方向へ延びていくのを抑制する植物生育抑制構造を提供することを目的とする。 Therefore, an object of the present invention is to provide a plant growth suppressing structure that suppresses plant roots that have entered through gaps between structures from extending laterally from the structures.
上記の課題を解決するために、本発明である植物生育抑制構造は、他の構造物と接する境界面において、上面から断面Ｖ字状に切り抜いたように縦の切欠面と、前記切欠面の下端から斜め上へ前記境界面に抜ける傾斜面が形成されるブロック構造物であって、前記傾斜面から前記切欠面へ上端を水平に隙間が生じないように一体成形した隔壁を長手方向へ間欠的に複数設けた、ことを特徴とする。 In order to solve the above-mentioned problems, the plant growth suppressing structure of the present invention has a vertical notch surface cut out from the top surface in a V-shaped cross section at the boundary surface in contact with another structure, and a vertical notch surface cut out from the top surface in a V-shaped cross section A block structure in which an inclined surface extending diagonally upward from the lower end to the boundary surface is formed, and partition walls are formed integrally with the upper end horizontally from the inclined surface to the notch surface so that no gaps are formed, and the partition walls are intermittent in the longitudinal direction. It is characterized by having multiple locations.
前記植物生育抑制構造において、前記隔壁の高さを、前記傾斜面の上端よりも低くした、ことを特徴とする。 The plant growth suppressing structure is characterized in that the height of the partition wall is lower than the upper end of the slope.
前記植物生育抑制構造は、前記ブロック構造物を長手方向へ延長するブロック構造物の接続面において、上面から断面Ｖ字状に切り抜いたように縦の凹面と、前記凹面の下端から斜め上へ前記接続面に抜ける斜面が形成され、前記斜面の上端をジグザグ状の凹凸にした、ことを特徴とする。 The plant growth suppressing structure includes a vertical concave surface cut out in a V-shaped cross section from the top surface of the connecting surface of the block structure that extends the block structure in the longitudinal direction, and a vertical concave surface cut out diagonally upward from the bottom end of the concave surface. It is characterized in that a slope extending through the connecting surface is formed, and the upper end of the slope has a zigzag-like unevenness.
本発明によれば、構造物同士の隙間から入り込んだ植物の根が当該構造物から横方向へ延びていくのを抑制することができる。構造物の一方を断面Ｖ字状にして噛み合わせることで、植物の根を重力に逆らう方向へ延びるように誘導すると共に、植物の根が横方向へ延びても乗り越えられないように、複数の隔壁を間欠的に一体的に成形して重力に逆らう方向へ誘導することで、植物の根が土壌へ到達できずに枯れる可能性が高くなる。 According to the present invention, it is possible to suppress plant roots that have entered through gaps between structures from extending laterally from the structures. By making one side of the structure V-shaped in cross section and interlocking them, we guide plant roots to extend in a direction that goes against gravity. By integrally molding the partition walls intermittently and guiding them in a direction that defies gravity, there is a high possibility that the plant roots will not be able to reach the soil and die.
以下に、本発明の実施形態について図面を参照して詳細に説明する。なお、同一機能を有するものは同一符号を付け、その繰り返しの説明は省略する場合がある。 Embodiments of the present invention will be described in detail below with reference to the drawings. Components having the same functions are designated by the same reference numerals, and repeated explanations may be omitted.
まず、本発明である植物生育抑制構造を有するブロック構造物について説明する。図１は、ブロック構造物の全体概観を示す図である。図２は、ブロック構造物の斜視図であり、図３は、ブロック構造物の正面図であり、図４は、ブロック構造物の平面図であり、図５は、ブロック構造物の左側面図である。図６は、植物生育抑制構造で雑草の生育を抑制する状況を説明する図である。 First, a block structure having a plant growth suppressing structure according to the present invention will be explained. FIG. 1 is a diagram showing the overall appearance of a block structure. FIG. 2 is a perspective view of the block structure, FIG. 3 is a front view of the block structure, FIG. 4 is a plan view of the block structure, and FIG. 5 is a left side view of the block structure. It is. FIG. 6 is a diagram illustrating a situation in which weed growth is suppressed by the plant growth suppressing structure.
図１に示すように、植物生育抑制構造１００を有するブロック構造物２００は、道路１１０などの他の構造物と接する境界における隙間２１０から雑草１２０などの植物が生えてくるのを抑制するためのものである。 As shown in FIG. 1, a block structure 200 having a plant growth suppressing structure 100 is designed to suppress plants such as weeds 120 from growing from gaps 210 at boundaries where the structure contacts other structures such as roads 110. It is something.
ブロック構造物２００は、現場でコンクリートを打設しても良いし、現場で組立及び設置するために予め工場等で製造しておくプレキャストコンクリートでも良い。ブロック構造物２００を設置した後に、道路１１０など他の構造物を打設・設置・舗装等する。 The block structure 200 may be made of concrete cast on site, or may be precast concrete manufactured in advance at a factory or the like for assembly and installation on site. After installing the block structure 200, other structures such as the road 110 are poured, installed, paved, etc.
図２に示すように、ブロック構造物２００は、上面から長手方向へ縦に切り込みを入れて、短手方向の横断面が略Ｖ字状（レ状）となるように切り抜いた形状にする。そのとき、縦の切欠面２３０と、切欠面２３０の下端から斜め上へ境界面２２０に抜ける傾斜面２４０が形成される。 As shown in FIG. 2, the block structure 200 is cut out vertically from the top surface in the longitudinal direction so that the transverse cross section in the transverse direction is approximately V-shaped. At this time, a vertical notch surface 230 and an inclined surface 240 extending obliquely upward from the lower end of the notch surface 230 to the boundary surface 220 are formed.
図３に示すように、ブロック構造物２００の隙間２１０に入り込んでいる雑草１２０は、根１２０ａを重力方向に延ばそうとするが、傾斜面２４０を上る方向には延ばしにくく、横方向（図面では手前から奥の前後方向）すなわち、隣接する構造物との境界線と平行に縦断する方向に延びやすくなる。 As shown in FIG. 3, the weeds 120 that have entered the gaps 210 of the block structure 200 try to extend their roots 120a in the direction of gravity, but it is difficult to extend them in the direction up the slope 240, In other words, it tends to extend in the longitudinal direction parallel to the boundary line with the adjacent structure.
そこで、傾斜面２４０と切欠面２３０の間を渡すように隔壁２５０を設ける。隔壁２５０は、ブロック構造物２００の手前側から奥側（長手方向）に向かって間欠的に複数設けられる。隔壁２５０は、傾斜面２４０の上端又は途中から水平に切欠面２３０に向かうことで逆三角形状となる。 Therefore, a partition wall 250 is provided so as to span between the inclined surface 240 and the cutout surface 230. A plurality of partition walls 250 are provided intermittently from the front side of the block structure 200 toward the back side (longitudinal direction). The partition wall 250 has an inverted triangular shape by extending horizontally toward the notch surface 230 from the upper end or midway of the inclined surface 240.
ブロック構造物２００を製造する際に、隔壁２５０が生じるように一体的に成形するか、切欠面２３０及び傾斜面２４０を切り出すときに隔壁２５０が残るようにすれば良い。隔壁２５０によって切欠面２３０と傾斜面２４０の間に隙間が生じないようにする。 When manufacturing the block structure 200, the partition wall 250 may be integrally formed so that the partition wall 250 is formed, or the partition wall 250 may be left when the cutout surface 230 and the inclined surface 240 are cut out. The partition wall 250 prevents a gap from forming between the cutout surface 230 and the inclined surface 240.
図４、５に示すように、複数の隔壁２５０は、それぞれ５０ｍｍ以下の間隔で設ければ良い。植物の根が横方向（図４では上下方向、図５では左右方向）に延びたとしても、隔壁２５０によって止められ、その先に進むのが困難となる。 As shown in FIGS. 4 and 5, the plurality of partition walls 250 may be provided at intervals of 50 mm or less. Even if the roots of the plant extend laterally (vertically in FIG. 4, horizontally in FIG. 5), they are stopped by the partition wall 250, making it difficult for them to proceed further.
図６に示すように、ブロック構造物２００と道路１１０の隙間２１０に雑草１２０が入り込んでいた場合、道路１１０の舗装材などが充填されているので、境界の僅かな隙間２１０に沿って植物の根１２０ａが延びていく。 As shown in FIG. 6, if weeds 120 have entered the gap 210 between the block structure 200 and the road 110, the plants will grow along the small gap 210 at the boundary because the road 110 is filled with paving material. The roots 120a extend.
図６（ａ）に示すように、雑草１２０の種子が隣接する隔壁２５０の間に落ちて、そこから根１２０ａを延ばす場合、切欠面２３０の下端まで進み、傾斜面２４０を上ろうとして上れず、切欠面２３０の下端に沿って横方向に進むが、隔壁２５０を上ろうとして上れず、土壌に到達できないことで枯れてしまうことになり、植物の生育が抑制される。 As shown in FIG. 6(a), when the seeds of the weed 120 fall between the adjacent partition walls 250 and the roots 120a extend from there, they advance to the lower end of the notch surface 230 and attempt to climb the slope surface 240, but are unable to do so. , they move laterally along the lower end of the notch surface 230, but when they try to climb the partition wall 250, they fail and cannot reach the soil, which results in them dying, and the growth of the plants is suppressed.
図６（ｂ）に示すように、雑草１２０の種子が隔壁２５０の上に落ちて、そこから根１２０ａを延ばす場合もあるので、隔壁２５０の高さは、傾斜面２４０の上端よりも低くなるようにする。 As shown in FIG. 6(b), the seeds of the weeds 120 may fall onto the partition wall 250 and the roots 120a may extend from there, so the height of the partition wall 250 is lower than the upper end of the slope 240. Do it like this.
植物の根１２０ａが隔壁２５０の上面に沿って傾斜面２４０の上端に達すると、そこから境界面２２０に沿って下りていき土壌に達することがあるが、傾斜面２４０のほうが高いと、隔壁２５０から傾斜面２４０を上れず、隔壁２５０を下りて切欠面２３０の下端まで進むことになり、植物の生育が抑制される。 When the plant roots 120a reach the upper end of the slope 240 along the upper surface of the partition wall 250, they may descend from there along the boundary surface 220 and reach the soil, but if the slope 240 is higher, the partition wall 250 Therefore, the plants cannot go up the slope 240 and go down the partition wall 250 to the lower end of the cutout surface 230, thereby suppressing the growth of plants.
次に、植物生育抑制構造を有するブロック構造物の長さを延長する場合について説明する。図７は、ブロック構造物の長さを延長する場合の斜視図であり、図８は、ブロック構造物の長さを延長する場合の左側面図である。図９は、ブロック構造物の長さを延長する場合の分解図であり、図１０は、ブロック構造物の長さを延長する場合の接続面を示す図である。 Next, a case will be described in which the length of a block structure having a plant growth suppressing structure is extended. FIG. 7 is a perspective view when the length of the block structure is extended, and FIG. 8 is a left side view when the length of the block structure is extended. FIG. 9 is an exploded view when the length of the block structure is extended, and FIG. 10 is a diagram showing a connecting surface when the length of the block structure is extended.
図７に示すように、ブロック構造物２００の長さが足りない場合は、手前のブロック構造物３００ｂの長さを延長するために奥にブロック構造物３００ａを接続する。ブロック構造物３００ａ、３００ｂの接続部における隙間３１０にも雑草１２０などの植物が生えて来るおそれがある。 As shown in FIG. 7, if the length of the block structure 200 is insufficient, a block structure 300a is connected at the back to extend the length of the block structure 300b at the front. Plants such as weeds 120 may also grow in the gap 310 at the connection between the block structures 300a and 300b.
図８、９に示すように、ブロック構造物３００ａは、上面から短手方向へ縦に切り込みを入れて、長手方向の縦断面が略Ｖ字状となるように切り抜いた形状で、縦の凹面３３０ａと、凹面３３０ａの下端から斜め上へ接続面３２０ａに抜ける斜面３４０ａが形成される。 As shown in FIGS. 8 and 9, the block structure 300a has a shape in which vertical incisions are made from the upper surface in the transverse direction so that the vertical section in the longitudinal direction is approximately V-shaped, and a vertical concave surface is formed. 330a, and a slope 340a extending obliquely upward from the lower end of the concave surface 330a to the connecting surface 320a.
また、ブロック構造物３００ｂは、ブロック構造物３００ａに嵌合するように、凹面３３０ａと対向する凸面３３０ｂ、斜面３４０ａと対向する斜面３４０ｂ、接続面３２０ａと対向する接続面３２０ｂが形成される。 Further, the block structure 300b is formed with a convex surface 330b facing the concave surface 330a, a slope 340b facing the slope 340a, and a connection surface 320b facing the connection surface 320a so as to fit into the block structure 300a.
図１０に示すように、ブロック構造物３００ａの斜面３４０ａの上端と、ブロック構造物３００ｂの斜面３４０ｂの下端は、ジグザグ状の凹凸に成形する。その際、それらが嵌合するように形状を合わせる。 As shown in FIG. 10, the upper end of the slope 340a of the block structure 300a and the lower end of the slope 340b of the block structure 300b are formed into zigzag-like unevenness. At that time, adjust the shapes so that they fit together.
図１０（ａ）に示すように、ブロック構造物３００ａの接続面３２０ａを正面側から見ると、凹面３３０ａが奥側にあり、接続面３２０ａが手前側にあって、図中、点線から実線に向かって上がるように斜面３４０ａがある。 As shown in FIG. 10(a), when the connecting surface 320a of the block structure 300a is viewed from the front side, the concave surface 330a is on the back side and the connecting surface 320a is on the near side. There is a slope 340a rising towards it.
図１０（ｂ）に示すように、ブロック構造物３００ｂの接続面３２０ｂを背面側から見ると、凸面３３０ｂが手前側にあり、接続面３２０ｂが奥側にあって、図中、実線から点線に向かって上がるように斜面３４０ｂがある。 As shown in FIG. 10(b), when the connecting surface 320b of the block structure 300b is viewed from the back side, the convex surface 330b is on the front side, and the connecting surface 320b is on the back side. There is a slope 340b rising towards it.
本発明によれば、構造物同士の隙間から入り込んだ植物の根が当該構造物から横方向へ延びていくのを抑制することができる。構造物の一方を断面Ｖ字状にして噛み合わせることで、植物の根を重力に逆らう方向へ延びるように誘導すると共に、植物の根が横方向へ延びても乗り越えられないように、複数の隔壁を間欠的に一体的に成形して重力に逆らう方向へ誘導することで、植物の根が土壌へ到達できずに枯れる可能性が高くなる。 According to the present invention, it is possible to suppress plant roots that have entered through gaps between structures from extending laterally from the structures. By making one side of the structure V-shaped in cross section and interlocking them, we guide plant roots to extend in a direction that goes against gravity. By integrally molding the partition walls intermittently and guiding them in a direction that defies gravity, there is a high possibility that the plant roots will not be able to reach the soil and die.
以上、本発明の実施例を述べたが、これらに限定されるものではない。例えば、略Ｖ字状だけでなく、略Ｗ字状にするなど、植物の根を重力に逆らう方向へ誘導することにより、植物の生育を抑制すれば良い。 Although the embodiments of the present invention have been described above, the present invention is not limited thereto. For example, the growth of the plant may be suppressed by guiding the roots of the plant in a direction that opposes gravity, such as by forming the shape not only in a substantially V-shape but also in a substantially W-shape.
１００：植物生育抑制構造
１１０：道路
１２０：雑草
１２０ａ：根
２００：ブロック構造物
２１０：隙間
２２０：境界面
２３０：切欠面
２４０：傾斜面
２５０：隔壁
３００ａ：ブロック構造物
３００ｂ：ブロック構造物
３１０：隙間
３２０ａ：接続面
３２０ｂ：接続面
３３０ａ：凹面
３３０ｂ：凸面
３４０ａ：斜面
３４０ｂ：斜面
100: Plant growth suppressing structure 110: Road 120: Weed 120a: Root 200: Block structure 210: Gap 220: Boundary surface 230: Notch surface 240: Slope surface 250: Partition wall 300a: Block structure 300b: Block structure 310: Gap 320a: Connection surface 320b: Connection surface 330a: Concave surface 330b: Convex surface 340a: Slope 340b: Slope
Claims (3)
前記傾斜面から前記切欠面へ上端を水平に隙間が生じないように一体成形した隔壁を長手方向へ間欠的に複数設けた、
ことを特徴とする植物生育抑制構造。 A block structure in which a vertical notch surface cut out from the upper surface in a V-shaped cross section and an inclined surface extending diagonally upward from the lower end of the notch surface to the boundary surface are formed on the boundary surface that contacts another structure. And,
A plurality of partition walls are provided intermittently in the longitudinal direction, the upper ends of which are integrally molded horizontally from the inclined surface to the notched surface so that no gaps are formed.
A plant growth suppressing structure characterized by:
ことを特徴とする請求項１に記載の植物生育抑制構造。 The height of the partition wall is lower than the upper end of the inclined surface.
The plant growth suppressing structure according to claim 1, characterized in that:
ことを特徴とする請求項１に記載の植物生育抑制構造。 On the connection surface of the block structure extending the block structure in the longitudinal direction, a vertical concave surface cut out from the top surface in a V-shaped cross section and a slope extending diagonally upward from the bottom end of the concave surface to the connection surface are formed. and the upper end of the slope has a zigzag-like unevenness,
The plant growth suppressing structure according to claim 1, characterized in that:
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| JP2023152328A JP7381157B1 (en) | 2023-09-20 | 2023-09-20 | Plant growth suppression structure |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3698265B2 (en) | 2002-11-08 | 2005-09-21 | 繁 石川 | Structure of structures intended for weed control, etc. |
| JP2006052626A (en) | 2004-07-14 | 2006-02-23 | Shigeru Ishikawa | Form for structure intending weedproofing, etc. structure making use of the form and block intending weedproofing, etc. having the same effect |
| JP3900500B1 (en) | 2005-09-26 | 2007-04-04 | 繁 石川 | Structure of joint of structure |
| JP5669915B1 (en) | 2013-10-23 | 2015-02-18 | 石田鉄工株式会社 | Drainage groove for road surface |
| JP5807135B1 (en) | 2015-05-15 | 2015-11-10 | 小河原セメント工業株式会社 | Weed protection for blocks |
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2023
- 2023-09-20 JP JP2023152328A patent/JP7381157B1/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3698265B2 (en) | 2002-11-08 | 2005-09-21 | 繁 石川 | Structure of structures intended for weed control, etc. |
| JP2006052626A (en) | 2004-07-14 | 2006-02-23 | Shigeru Ishikawa | Form for structure intending weedproofing, etc. structure making use of the form and block intending weedproofing, etc. having the same effect |
| JP3900500B1 (en) | 2005-09-26 | 2007-04-04 | 繁 石川 | Structure of joint of structure |
| JP5669915B1 (en) | 2013-10-23 | 2015-02-18 | 石田鉄工株式会社 | Drainage groove for road surface |
| JP5807135B1 (en) | 2015-05-15 | 2015-11-10 | 小河原セメント工業株式会社 | Weed protection for blocks |
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