JP2004065058A - Fixedly supporting tool for root ball of tree - Google Patents

Fixedly supporting tool for root ball of tree Download PDF

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Publication number
JP2004065058A
JP2004065058A JP2002226817A JP2002226817A JP2004065058A JP 2004065058 A JP2004065058 A JP 2004065058A JP 2002226817 A JP2002226817 A JP 2002226817A JP 2002226817 A JP2002226817 A JP 2002226817A JP 2004065058 A JP2004065058 A JP 2004065058A
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Japan
Prior art keywords
tree
pile shaft
anchor
root
extension
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JP2002226817A
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Japanese (ja)
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JP3776064B2 (en
Inventor
Hiroyuki Nomura
野村 博行
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Individual
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a fixedly supporting tool for fixing the root ball of a tree to be planted through a planting pit. <P>SOLUTION: This fixedly supporting tool is composed of a plurality of anchor metal fittings which fix the root ball of a tree to be planted through the planting pit. The anchor metal fitting has a stake shaft part forming a sharp part on a lower edge to be driven into the bottom of the planting pit along the peripheral surface of the root ball, a head part folded towards the top surface of the root ball from the upper end of the stake shaft part and a belt loop located on the opposite side of the folding direction of the head part and set on the side surface of the stake shaft part. At least the stake shaft part forms joint parts and groove parts which are alternately axially arranged. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、植付け穴を介して植樹される樹木の根鉢を固定するための固定支持装置に関する。
【0002】
【従来の技術】
種や苗木から自然に成長した樹木は、その成長に伴い、土中に根を張りめぐらすので、十分な自己支持力を備えている。これに対して、人工的に植樹された樹木は、植樹を必要とする場所の地面に植付け穴を掘削し、該植付け穴に樹木の根鉢を設置し、植付け穴を土砂により埋め戻される。
【0003】
植樹された樹木は、年月を経ることにより、根鉢から延びる根が広く土中に張りめぐらされるまで、不安定な状態にある。即ち、樹木が強風等により揺れ動くと、根鉢が植付け穴の内部で動くため、根鉢から張り出しつつある成長途上の細根が分断され、その結果、枯れてしまう。
【0004】
このため、従来、街路樹等に見られるように、植樹された樹木は、地上において木製支柱により支持されている。
【0005】
【発明が解決しようとする課題】
然しながら、このような地上に設置する支柱は、樹木に対して紐等により縛りつけられるため、樹木が成長して太くなるに伴い、縛りつけた紐等が樹木の表面に食い込むという問題がある。また、自然環境の配慮から、紐を麻やその他の植物繊維により構成したものでは、紐が早期に腐り、縛りつけ効果を失うという問題がある。
【0006】
更に、地上の支柱は、樹齢に応じた樹木の転倒モーメントに基づいて強度計算されておらず、樹木が低木であっても、高木と同様の大きな支柱が使用されているため、通行人等の往来の邪魔になるという問題があり、しかも、高コストであるという難点がある。
【0007】
【課題を解決するための手段】
本発明は、上記に鑑み、植樹された樹木の根鉢を植付け穴の内部において好適に固定支持できるようにした装置を提供するものである。従って、本発明の固定支持装置によれば、例えば、樹木が高さ3m程度の低木であれば、従来のような地上の支柱を設けなくても根鉢を強固に固定支持することができる。また、樹木が高木の場合は、従来の地上の支柱と併用しても良く、この場合、支柱は比較的小さいもので足り、上述したような問題点を解決できる。更に、本発明の固定支持装置は、一般家庭において、植樹後の樹木が強風等により傾いた場合に、樹木を直立姿勢となるように立て直した後、簡単に固定支持することができる。
【0008】
そこで、本発明が手段として構成したところは、植付け穴を介して植樹される樹木の根鉢を固定する複数のアンカー金具から成る固定支持装置において、アンカー金具は、根鉢の周面に沿って植付け穴の穴底に打ち込まれるように下端に尖鋭部を形成した杭軸部と、該杭軸部の上端から根鉢の頂面に向けて折曲された頭部と、頭部の折曲方向とは反対側に位置して杭軸部の側面に設けられたベルト通し環とを備えており、少なくとも杭軸部は、軸方向に交互に配置された節部と溝部を形成して成る点にある。
【0009】
アンカー金具は、杭軸部の軸線と頭部の軸線との間に形成される角度θを90度未満に構成している。
【0010】
アンカー金具は、杭軸部に取付自在とされた延長アタッチメントを併用することができ、延長アタッチメントは、下端に尖鋭部を形成すると共に軸方向に交互に配置された節部と溝部を形成した延長軸部と、該延長軸部の同軸上で該延長軸部の上端に固着された接続スリーブとを備えており、接続スリーブは、アンカー金具の尖鋭部を含む杭軸部を挿脱自在に挿入せしめる接続孔を備えると共に、接続孔に挿入された杭軸部の溝部に対して接続スリーブの外側から進退自在に係合するセットボルトを設けている。
【0011】
【発明の実施の形態】
以下図面に基づいて本発明の好ましい実施形態を詳述する。
【0012】
図1は、植付け穴1と、樹木2の根鉢3を鎖線で示し、本発明に係る複数のアンカー金具4から成る固定支持装置を実線で示し、アンカー金具4を中心に向けて締結するベルト5を破線で示している。
【0013】
アンカー金具4は、根鉢3の周面3aに沿って植付け穴1の穴底に打ち込まれるように下端に尖鋭部6aを形成した杭軸部6と、該杭軸部6の上端から根鉢3の頂面3bに向けて折曲された頭部7と、頭部の折曲方向とは反対側に位置して杭軸部6の側面に設けられたベルト通し環8とを備えており、少なくとも杭軸部6には、軸方向に交互に配置された節部9と溝部10を形成している。
【0014】
このような節部9と溝部10を有するアンカー金具4は、節付きの異径鋼棒を使用すれば、所定長さ寸法の異径鋼棒から折曲を介して杭軸部9と頭部7を形成すると共に、杭軸部9の先端に切削により尖鋭部6aを形成し、杭軸部9の側面に鋼棒により折曲形成されたベルト通し環8を溶接固着することにより、安価に製造することができる。この場合、節部9と溝部10は、杭軸部9と頭部7の全体にわたり形成される。
【0015】
図3(A)に示すように、杭軸部6の軸線Yと頭部7の軸線Xとの間に形成される角度θは、90度未満、好ましくは89度以下で70度以上、更に好ましくは87度以下で75度以上に形成されている。
【0016】
図2は、必要に応じてアンカー金具4に着脱自在に取付けられる延長アタッチメント11を示している。延長アタッチメント11は、延長軸部12と、該延長軸部と同軸上で該延長軸部の上端に溶接等により固着された接続スリーブ13とを備えている。延長軸部12は、上述したアンカー金具と同材の異径鋼棒が使用されており、軸方向に交互に配置された節部14と溝部15を形成しており、下端に尖鋭部12aを形成している。接続スリーブ13は、延長軸部12の節部14を嵌入し得る内径を有する金属パイプから構成され、節部14を含む延長軸部12の上端部を接続スリーブ13の下端部に嵌入した状態で、溶接により一体的に固着されている。これにより、接続スリーブ13は上方に開口する接続孔16を構成する。接続スリーブ13の上端近傍部には、側面を貫通する孔に連通するナット17が溶接され、該接続スリーブの外側から進退自在なセットボルト18を該ナット17に螺合せしめており、このようなナット17及びボルト18は、図例の場合、上下に所定間隔をあけて一対が設けられている。尚、接続スリーブ13の側面貫通孔に雌ネジを形成しておけば、ナット17が不要となる。
【0017】
図2(A)は、アンカー金具4と延長アタッチメント11を分離した状態を示し、図2(B)は、アンカー金具4に延長アタッチメント11を取付けた状態を示している。アンカー金具4の尖鋭部6aを含む杭軸部6を、延長アタッチメント11の接続孔16に挿入すると、杭軸部6の下端近傍における節部9が接続孔16に内嵌される。図2(B)に示すように、杭軸部6の尖鋭部6aを接続孔16の孔底(接続スリーブ13に内嵌された延長軸部12の端面)に当接せしめると、杭軸部6の溝部10が前記ナット17に臨むように設計されている。即ち、接続スリーブ13のナット17は、接続孔16の孔底から距離L1の位置に設けられており、これに対して、杭軸部6は、尖鋭部6aの先端から距離L2の位置に溝部10が配置されるように形成されており、L1とL2がほぼ等しくなるように設計されている。従って、杭軸部6を接続スリーブ13に挿入し、尖鋭部6aが接続孔16の孔底に当接した状態で、セットボルト18を締結すれば、セットボルトの先端が溝部10に係合し、これによりアンカー金具4と延長アタッチメント11を連結固着できる。
【0018】
このような延長アタッチメント11は、アンカー金具4の打ち込み深さを増す必要がある場合に有効に使用できる。この点に関して、全てのアンカー金具4を長く形成する場合は、例えば、街路樹等においてガス管等のライフラインが埋設されているようなときに、打ち込んだアンカー金具4によりライフラインを破損する虞れがある。従って、アンカー金具4それ自体は、不必要に長く形成せずに、所定の長さ寸法に形成しておき、必要な個所や必要な本数のアンカー金具4に延長アタッチメント11を取付けることにより、所望の強度計算を行いながら、固定支持装置を最大限有効に活用できるという利点がある。
【0019】
本発明の固定支持装置により樹木2の根鉢3を固定支持するに際しては、根鉢3の周方向に複数のアンカー金具4を配置する。図例の場合、周方向等間隔に4本のアンカー金具4を配置しているが、3本以上であれば本数は問わない。
【0020】
図3は、樹木を新規に植樹する場合の例を示している。図3(A)に示すように、植付け穴1の穴底1aに根鉢3を設置した状態で、アンカー金具4は、杭軸部6を根鉢3の周面に沿わしめられ、頭部7を樹木1の中心に向かうように姿勢保持せしめられる。そこで、頭部7の軸線Xをほぼ水平姿勢とした状態で、図示矢印Pで示すように、頭部7をハンマー等により殴打すれば、根鉢3の中心方向に向けてやや傾斜せしめられた軸線Yに沿って、杭軸部6が穴底1aに打ち込まれる。この打ち込みにより、杭軸部6の先端近傍部は、根鉢の底部下方に向けて進入する。この際、杭軸部6の先端には尖鋭部6aが形成されているので、根鉢3の周囲から張り出す細根を切断する虞れはない。また、杭軸部6には節部9及び溝部10が設けられているので、穴底1aに刺突された杭軸部6の抜け止めとして機能する。
【0021】
図3(B)に示すように、アンカー金具4を完全に打ち込むと、頭部7が根鉢3の頂面3bを押さえつける。従って、根鉢3の頂面3bは、周囲に打ち込まれた複数のアンカー金具4の頭部7により好適に保持される。
【0022】
所定本数のアンカー金具4を打ち込んだ後、各アンカー金具4のベルト通し環8にベルト5が挿通される。これにより、ベルト5は、根鉢3の周囲を鉢巻き状に包囲する。詳細は図示省略しているが、ベルト5にはウインチ等の緊締手段19が設けられており、該緊締手段19を介してベルト5を締結すると、全てのアンカー金具4、4・・・は、杭軸部6を根鉢3の周面3aに圧接する。この際、前述のように杭軸部6に対して頭部7が角度θを有しているので、ベルト5の締結により杭軸部6を根鉢3の周面3aに圧接するように偏位せしめると、同時に、頭部7が下向きに偏位して根鉢3の頂面3bを押さえつける。
【0023】
従って、根鉢3は、植付け穴1に対して極めて強固に固定支持され、植付け穴を土砂により埋め戻し、作業を終了する。尚、必要であれば、地上において樹木2を支持するための木製支柱やワイヤー等を設置しても良い。
【0024】
樹木を新規に植樹する場合の他、本発明の固定支持装置は、一般家庭等において、植樹後の樹木が強風等により傾いた場合、樹木を直立姿勢となるように立て直した後、固定支持するために使用することができる。この場合は、根鉢が容易に動くように植付け穴をほぼ1/2ないし2/3程度の深さまで掘り戻し、樹木を直立姿勢となるように立て直した後、上述と同様に、根鉢の周囲に複数のアンカー金具を打ち込み、ベルトにより締結した後、植付け穴を土砂により埋め戻せば良く、これにより立て直した後の樹木を確実強固に固定支持できる。
【0025】
【発明の効果】
本発明によれば、植樹された樹木2の根鉢3を植付け穴1の内部において好適に固定支持することができるので、例えば、樹木が低木であれば、従来のような地上の支柱を設けなくても根鉢を強固に固定支持することができる。樹木が高木の場合は、従来の地上の支柱と併用しても良いが、この場合、支柱は比較的小さいもので足り、全体としてコストダウンを図れるという利点がある。
【0026】
特に、請求項1に記載の本発明によれば、アンカー金具4の少なくとも杭軸部6には節部9と溝部10を交互に形成しているので、穴底1aに刺突された杭軸部6の抜け止めとして機能する効果がある。
【0027】
また、請求項2に記載の本発明によれば、アンカー金具4は、杭軸部6と頭部7の折曲角度θを90度未満としているので、頭部7をほぼ水平姿勢とした状態でハンマー等により打ち込むと、杭軸部6が根鉢3の底部下方に向けて穴底1aに打ち込まれる。従って、ベルト通し環8を介して鉢巻き状に巻き付けたベルト5を締結したとき、杭軸部6が根鉢3の周面3aを強力に抱持すると共に、頭部7が根鉢3の頂面3bを押さえつけ、これにより根鉢2の一層強固な固定支持を可能にするという効果がある。
【0028】
更に、請求項3に記載の本発明によれば、延長アタッチメント11により、必要に応じてアンカー金具4の打ち込み深さを増すことができ、しかも、アンカー金具4に対する延長アタッチメント11の取付作業が容易であり、取付後は、取付状態が強固であるという効果がある。
【図面の簡単な説明】
【図1】本発明の固定支持装置を構成するアンカー金具の1実施形態を示す斜視図である。
【図2】延長アタッチメントの1実施形態を示しており、(A)はアンカー金具と延長アタッチメントを分離した状態の斜視図、(B)はアンカー金具に延長アタッチメントを取付けた状態の斜視図である。
【図3】本発明の作用を示しており、(A)はアンカー金具の打ち込み前の状態を側面から示す断面図、(B)はアンカー金具の打ち込み後の状態を側面から示す断面図である。
【符号の説明】
1  植付け穴
2  樹木
3  根鉢
4  アンカー金具
5  ベルト
6  杭軸部
6a 尖鋭部
7  頭部
8  ベルト通し環
9  節部
10  溝部
11  延長アタッチメント
12  延長軸部
12a 尖鋭部
13  接続スリーブ
14  節部
15  溝部
16  接続孔
18  セットボルト
19  緊締手段
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a fixing support device for fixing a root pot of a tree planted through a planting hole.
[0002]
[Prior art]
Trees that have grown naturally from seeds and saplings have sufficient self-supporting power as they grow roots in the soil as they grow. On the other hand, the artificially planted tree is formed by digging a planting hole in the ground where planting is required, installing a tree root in the planting hole, and filling the planting hole with earth and sand.
[0003]
The trees planted are in an unstable state as they age, until the roots extending from the root pots are widely spread in the soil. That is, when the tree shakes due to a strong wind or the like, the root pot moves inside the planting hole, so that the growing fine roots that are protruding from the root pot are cut off and, as a result, die.
[0004]
For this reason, conventionally, as seen in street trees and the like, planted trees are supported by wooden columns on the ground.
[0005]
[Problems to be solved by the invention]
However, since such a pillar installed on the ground is tied to a tree with a string or the like, there is a problem that as the tree grows and becomes thicker, the tied string or the like bites into the surface of the tree. In addition, in consideration of the natural environment, when the string is made of hemp or other plant fibers, the string rots quickly and loses its binding effect.
[0006]
In addition, the strength of the ground support is not calculated based on the overturning moment of the tree according to the age of the tree, and even if the tree is a shrub, the same large support as the tall tree is used. There is a problem that it interferes with traffic, and there is a disadvantage that it is expensive.
[0007]
[Means for Solving the Problems]
The present invention has been made in view of the above, and provides an apparatus capable of suitably fixing and supporting a root pot of a planted tree inside a planting hole. Therefore, according to the fixed support device of the present invention, for example, if the tree is a shrub having a height of about 3 m, the root pot can be firmly fixed and supported without providing a conventional ground support. If the tree is a tree, it may be used in combination with a conventional ground support. In this case, the support is only required to be relatively small, and the above-described problem can be solved. Furthermore, the fixed support device of the present invention can easily be fixedly supported in a general household after the tree is reverted to an upright posture when the tree after planting is tilted due to a strong wind or the like.
[0008]
Therefore, the present invention is configured as a means, in a fixing support device comprising a plurality of anchors for fixing a root pot of a tree planted through a planting hole, the anchor metal is planted along the peripheral surface of the root pot. A pile shaft having a sharp end formed at the lower end so as to be driven into the hole bottom of the hole, a head bent from the upper end of the pile shaft to the top surface of the root pot, and a bending direction of the head And a belt passing ring provided on a side surface of the pile shaft portion, which is located on the opposite side to the pile shaft portion, and at least the pile shaft portion is formed by forming nodes and grooves alternately arranged in the axial direction. It is in.
[0009]
The angle of the angle θ formed between the axis of the pile shaft and the axis of the head is less than 90 degrees.
[0010]
Anchor fittings can be used together with an extension attachment that can be attached to the pile shaft portion, and the extension attachment forms a sharpened portion at the lower end and an extension formed with nodes and grooves alternately arranged in the axial direction. A shaft, and a connecting sleeve coaxial with the extension shaft and fixed to an upper end of the extension shaft. The connection sleeve is configured to removably insert a pile shaft including a sharp portion of an anchor. A connection bolt is provided, and a set bolt is provided for engaging the groove of the pile shaft portion inserted into the connection hole from the outside of the connection sleeve so as to be able to advance and retreat.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the drawings.
[0012]
FIG. 1 shows a planting hole 1 and a root pot 3 of a tree 2 by a chain line, a fixed support device comprising a plurality of anchors 4 according to the present invention by a solid line, and a belt for fastening the anchor 4 toward the center. 5 is indicated by a broken line.
[0013]
An anchor fitting 4 includes a pile shaft portion 6 having a sharp portion 6a formed at the lower end so as to be driven into the bottom of the planting hole 1 along the peripheral surface 3a of the root shaft 3; 3 has a head 7 bent toward the top surface 3b, and a belt passing ring 8 provided on the side surface of the pile shaft 6 at a side opposite to the bending direction of the head. At least, the pile shaft 6 is formed with nodes 9 and grooves 10 alternately arranged in the axial direction.
[0014]
If the anchor metal member 4 having such a joint portion 9 and the groove portion 10 is formed of a different-diameter steel rod having a predetermined length, the pile shaft portion 9 and the head can be bent by using a different-diameter steel rod with a joint. 7, a sharp portion 6 a is formed by cutting at the tip of the pile shaft 9, and a belt through ring 8 bent by a steel rod is welded and fixed to the side surface of the pile shaft 9, thereby reducing the cost. Can be manufactured. In this case, the node 9 and the groove 10 are formed over the entire pile shaft 9 and the head 7.
[0015]
As shown in FIG. 3 (A), the angle θ formed between the axis Y of the pile shaft 6 and the axis X of the head 7 is less than 90 degrees, preferably 89 degrees or less and 70 degrees or more, and Preferably, it is formed at an angle of 87 degrees or less and 75 degrees or more.
[0016]
FIG. 2 shows the extension attachment 11 which is detachably attached to the anchor 4 as needed. The extension attachment 11 includes an extension shaft portion 12 and a connection sleeve 13 coaxial with the extension shaft portion and fixed to an upper end of the extension shaft portion by welding or the like. The extension shaft portion 12 uses a different diameter steel rod of the same material as the above-described anchor fitting, forms the nodes 14 and the grooves 15 alternately arranged in the axial direction, and has a sharp portion 12a at the lower end. Has formed. The connection sleeve 13 is formed of a metal pipe having an inside diameter capable of fitting the node 14 of the extension shaft 12, and the upper end of the extension shaft 12 including the node 14 is fitted into the lower end of the connection sleeve 13. And are integrally fixed by welding. Thus, the connection sleeve 13 forms a connection hole 16 that opens upward. A nut 17 communicating with a hole penetrating the side surface is welded to the vicinity of the upper end of the connection sleeve 13, and a set bolt 18 that can be advanced and retracted from the outside of the connection sleeve is screwed to the nut 17. In the illustrated example, a pair of the bolts 17 and the bolts 18 are provided at predetermined intervals above and below. If a female screw is formed in the side through hole of the connection sleeve 13, the nut 17 becomes unnecessary.
[0017]
FIG. 2A shows a state where the anchor 4 and the extension attachment 11 are separated, and FIG. 2B shows a state where the extension attachment 11 is attached to the anchor 4. When the pile shaft 6 including the sharp portion 6 a of the anchor 4 is inserted into the connection hole 16 of the extension attachment 11, the node 9 near the lower end of the pile shaft 6 is fitted into the connection hole 16. As shown in FIG. 2B, when the sharp portion 6a of the pile shaft portion 6 is brought into contact with the bottom of the connection hole 16 (the end surface of the extension shaft portion 12 fitted inside the connection sleeve 13), the pile shaft portion 6 is designed so that the groove 10 faces the nut 17. That is, the nut 17 of the connection sleeve 13 is provided at a position of a distance L1 from the bottom of the connection hole 16, while the pile shaft 6 is provided with a groove at a position of a distance L2 from the tip of the sharp portion 6a. 10 are arranged and L1 and L2 are designed to be substantially equal. Therefore, when the pile shaft 6 is inserted into the connection sleeve 13 and the set bolt 18 is fastened in a state where the sharp portion 6 a is in contact with the bottom of the connection hole 16, the tip of the set bolt is engaged with the groove 10. Thus, the anchor 4 and the extension attachment 11 can be connected and fixed.
[0018]
Such an extension attachment 11 can be effectively used when it is necessary to increase the driving depth of the anchor 4. In this regard, when all the anchors 4 are formed to be long, for example, when a lifeline such as a gas pipe is buried in a street tree or the like, the lifeline may be damaged by the driven anchors 4. There is. Therefore, the anchor fitting 4 itself is not formed unnecessarily long, but is formed in a predetermined length dimension, and the extension attachment 11 is attached to a necessary place or the required number of anchor fittings 4 so that a desired length can be obtained. There is an advantage that the fixed support device can be utilized as efficiently as possible while calculating the strength.
[0019]
When the root support 3 of the tree 2 is fixedly supported by the fixed support device of the present invention, a plurality of anchors 4 are arranged in the circumferential direction of the root pot 3. In the illustrated example, four anchors 4 are arranged at equal intervals in the circumferential direction, but the number of anchors is not limited as long as the number is three or more.
[0020]
FIG. 3 shows an example in which a tree is newly planted. As shown in FIG. 3A, in a state where the root pot 3 is installed at the hole bottom 1 a of the planting hole 1, the anchor metal fitting 4 allows the pile shaft 6 to be fitted along the peripheral surface of the root pot 3, 7 is held so as to face the center of the tree 1. When the head 7 is hit with a hammer or the like as shown by the arrow P in the state where the axis X of the head 7 is in a substantially horizontal posture, the head 7 is slightly inclined toward the center of the root bowl 3. Along the axis Y, the pile shaft 6 is driven into the hole bottom 1a. By this driving, the vicinity of the tip end of the pile shaft portion 6 enters below the bottom of the root pot. At this time, since the sharp portion 6a is formed at the tip of the pile shaft portion 6, there is no risk of cutting the fine root projecting from the periphery of the root mortar 3. Moreover, since the knot part 9 and the groove part 10 are provided in the pile shaft part 6, it functions as a stopper for the pile shaft part 6 pierced into the hole bottom 1a.
[0021]
As shown in FIG. 3B, when the anchor 4 is completely driven, the head 7 presses the top surface 3 b of the root pot 3. Therefore, the top surface 3b of the root mortar 3 is suitably held by the heads 7 of the plurality of anchors 4 driven around.
[0022]
After driving a predetermined number of anchors 4, the belt 5 is inserted into the belt passing ring 8 of each anchor 4. Thus, the belt 5 surrounds the root pot 3 in a headband shape. Although not shown in detail, the belt 5 is provided with a tightening means 19 such as a winch. When the belt 5 is fastened via the tightening means 19, all the anchors 4, 4,. The pile shaft 6 is pressed against the peripheral surface 3 a of the root mortar 3. At this time, since the head 7 has an angle θ with respect to the pile shaft 6 as described above, the belt shaft 5 is biased so that the pile shaft 6 is pressed against the peripheral surface 3 a of the root pot 3 by fastening the belt 5. At the same time, the head 7 is displaced downward to hold down the top surface 3b of the root pot 3 at the same time.
[0023]
Therefore, the root pot 3 is fixed and supported extremely firmly with respect to the planting hole 1, and the planting hole is backfilled with earth and sand, thereby completing the operation. If necessary, a wooden support, a wire, or the like for supporting the tree 2 on the ground may be provided.
[0024]
In addition to the case where a tree is newly planted, the fixed support device of the present invention, in a general household or the like, when the tree after planting is tilted due to strong wind, etc., fixedly supports the tree after erecting it to an upright posture. Can be used for In this case, the planting hole is dug back to a depth of about 1/2 to 2/3 so that the root mortar can easily move, and the tree is erected so that it is in an upright posture. After a plurality of anchors are driven into the periphery and fastened with a belt, the planting holes may be backfilled with earth and sand, whereby the trees that have been erected can be reliably and firmly fixed and supported.
[0025]
【The invention's effect】
According to the present invention, the root pot 3 of the planted tree 2 can be suitably fixed and supported inside the planting hole 1. For example, if the tree is a shrub, a conventional ground support is provided. Even without it, the root mortar can be firmly fixed and supported. If the tree is a tall tree, it may be used in combination with a conventional ground support, but in this case, the support is only required to be relatively small, and there is an advantage that the cost can be reduced as a whole.
[0026]
In particular, according to the present invention as described in claim 1, since at least the pile shaft 6 of the anchor 4 has the nodes 9 and the grooves 10 alternately formed, the pile shaft pierced into the hole bottom 1a. This has the effect of functioning as a stopper for the part 6.
[0027]
According to the second aspect of the present invention, since the bending angle θ between the pile shaft 6 and the head 7 is less than 90 degrees, the head 7 is in a substantially horizontal posture. When the pile shaft 6 is driven into the hole bottom 1a toward the bottom of the root pot 3 by driving with a hammer or the like. Therefore, when the belt 5 wound in a headband shape is fastened via the belt passing ring 8, the pile shaft 6 strongly holds the peripheral surface 3 a of the root pot 3, and the head 7 is attached to the top of the root pot 3. There is an effect that the surface 3b is pressed down, thereby enabling the root pot 2 to be more firmly fixed and supported.
[0028]
Furthermore, according to the third aspect of the present invention, the extension attachment 11 can increase the driving depth of the anchor 4 as necessary, and can easily attach the extension 11 to the anchor 4. After mounting, there is an effect that the mounting state is strong.
[Brief description of the drawings]
FIG. 1 is a perspective view showing one embodiment of an anchor fitting constituting a fixed support device of the present invention.
FIGS. 2A and 2B show an embodiment of an extension attachment, wherein FIG. 2A is a perspective view showing a state in which an anchor and an extension are separated, and FIG. 2B is a perspective view showing a state in which the extension is attached to the anchor. .
3A and 3B show the operation of the present invention, in which FIG. 3A is a cross-sectional view showing a state before driving of the anchor fitting from a side, and FIG. 3B is a cross-sectional view showing a state after driving of the anchor fitting. .
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Planting hole 2 Tree 3 Root pot 4 Anchor metal fittings 5 Belt 6 Pile shaft part 6a Sharp part 7 Head 8 Belt passing ring 9 Knot part 10 Groove part 11 Extension attachment 12 Extension shaft part 12a Sharp part 13 Connection sleeve 14 Knot part 15 Groove part 16 Connection hole 18 Set bolt 19 Tightening means

Claims (3)

植付け穴を介して植樹される樹木の根鉢を固定する複数のアンカー金具から成る固定支持装置において、
アンカー金具4は、根鉢3の周面に沿って植付け穴の穴底1aに打ち込まれるように下端に尖鋭部6aを形成した杭軸部6と、該杭軸部6の上端から根鉢の頂面3bに向けて折曲された頭部7と、頭部の折曲方向とは反対側に位置して杭軸部の側面に設けられたベルト通し環8とを備えており、
少なくとも杭軸部6は、軸方向に交互に配置された節部9と溝部10を形成して成ることを特徴とする樹木における根鉢の固定支持装置。
In a fixed support device comprising a plurality of anchors for fixing a root pot of a tree planted through a planting hole,
An anchor fitting 4 includes a pile shaft portion 6 having a sharp portion 6a formed at a lower end so as to be driven into a hole bottom 1a of a planting hole along a peripheral surface of the root shaft 3; A head 7 bent toward the top surface 3b, and a belt passing ring 8 provided on a side surface of the pile shaft portion opposite to the bending direction of the head,
At least the pile shaft portion 6 is formed by forming node portions 9 and groove portions 10 alternately arranged in the axial direction, and a fixing support device for a root pot in a tree.
杭軸部6の軸線Yと頭部7の軸線Xとの間に形成される角度θが、90度未満に構成されて成ることを特徴とする請求項1に記載の樹木における根鉢の固定支持装置。2. The fixing of the root pot in a tree according to claim 1, wherein the angle θ formed between the axis Y of the pile shaft 6 and the axis X of the head 7 is less than 90 degrees. Support device. アンカー金具4の杭軸部6に取付自在な延長アタッチメント11を備えた構成とされ、
延長アタッチメント11は、下端に尖鋭部12aを形成すると共に軸方向に交互に配置された節部14と溝部15を形成した延長軸部12と、該延長軸部の同軸上で該延長軸部の上端に固着された接続スリーブ13とを備えており、
接続スリーブ13は、アンカー金具4の尖鋭部6aを含む杭軸部6を挿脱自在に挿入せしめる接続孔16を備えると共に、接続孔16に挿入された杭軸部6の溝部10に対して接続スリーブ13の外側から進退自在に係合するセットボルト18を設けて成ることを特徴とする請求項1又は2に記載の樹木における根鉢の固定支持装置。
An extension attachment 11 that can be attached to the pile shaft 6 of the anchor 4 is provided.
The extension attachment 11 has a sharp end portion 12a at the lower end and an extension shaft portion 12 formed with nodes 14 and grooves 15 alternately arranged in the axial direction. The extension attachment portion 11 has a coaxial shape with the extension shaft portion. A connection sleeve 13 fixed to the upper end,
The connection sleeve 13 has a connection hole 16 through which the pile shaft 6 including the sharp portion 6a of the anchor 4 is removably inserted, and is connected to the groove 10 of the pile shaft 6 inserted into the connection hole 16. The fixing support device for a root pot in a tree according to claim 1 or 2, further comprising a set bolt (18) that is engaged with the sleeve (13) so as to be able to move forward and backward.
JP2002226817A 2002-08-05 2002-08-05 Fixed support device for root pots in trees Expired - Fee Related JP3776064B2 (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008203682A (en) * 2007-02-21 2008-09-04 Hokuriku Iji Service Kk Fixture of display object for setting up standing signboard or the like on ground surface
KR100940646B1 (en) * 2007-11-02 2010-02-05 (주)성시화조경공사 A support frame for naturalizing tree in underground
US8567118B2 (en) 2006-02-14 2013-10-29 Sarah E. Farmer Belowground tree anchoring apparatus and method
CN105075791A (en) * 2015-08-14 2015-11-25 上海市普陀区社区绿化管理所 Foundation ground anchor
CN110073941A (en) * 2019-05-29 2019-08-02 安徽格林生态环境有限公司 A kind of forestry plantation soil ball spud pile and its application method
US10653079B1 (en) 2016-08-25 2020-05-19 Ginger Tree Innovations, LLC Underground tree stake system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8567118B2 (en) 2006-02-14 2013-10-29 Sarah E. Farmer Belowground tree anchoring apparatus and method
JP2008203682A (en) * 2007-02-21 2008-09-04 Hokuriku Iji Service Kk Fixture of display object for setting up standing signboard or the like on ground surface
KR100940646B1 (en) * 2007-11-02 2010-02-05 (주)성시화조경공사 A support frame for naturalizing tree in underground
CN105075791A (en) * 2015-08-14 2015-11-25 上海市普陀区社区绿化管理所 Foundation ground anchor
US10653079B1 (en) 2016-08-25 2020-05-19 Ginger Tree Innovations, LLC Underground tree stake system
CN110073941A (en) * 2019-05-29 2019-08-02 安徽格林生态环境有限公司 A kind of forestry plantation soil ball spud pile and its application method

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