JP4796935B2 - Tree support construction method and support construction tools - Google Patents

Description

  The present invention is a method for supporting and supporting trees, and more specifically, artificially planted in various places in urban areas such as parks, sidewalks, exhibition halls, parking lots, plazas, plazas, public open spaces, etc. It is related with the support construction method of the tree for constructing while supporting the tree to be supported, and the support construction tool.

  In recent years, the demand for urban greening has increased, and in response to this, artificially planted in various places in urban areas, such as parks, sidewalks, exhibition halls, parking lots, plazas, plazas, public open spaces, etc. Construction methods for constructing trees while supporting them are being implemented. And in such a support construction method, it is necessary to fix the root pot of a tree in an underground part, and various methods and tools are conventionally employ | adopted as such a support construction method and a support construction tool.

  For example, a string-like body such as a wire is hung around the root pot, the string-like body is locked to a driving member such as an anchor, and the root pot is fixed by driving the driving member into the ground. In place of the anchor, a root pot is mounted on the mounting material, and a method of fixing the root pot by hanging a string-like body around the mounting material, or driving a pile-shaped member along the side surface of the root pot Although the method etc. are used, many of the support construction tools used for these methods are metal.

  However, since these support construction tools are installed around the root pot for the purpose of fixing the root pot, they are generally buried in the soil and left as they are. However, it is originally not preferable from the viewpoint of destruction of the natural environment that these metal support construction tools are left as they are embedded in the soil.

  Therefore, in view of such a point, for example, a method of driving a wooden pile along the side surface of the root pot is also performed, and as such a method, for example, a patent application such as the following Patent Document 1 is made. ing. However, the wooden pile used in the method described in Patent Document 1 has a weak pulling resistance, and can be easily pulled out by pulling it directly above, so that a tilting force is generated in the tree. In such a case, there is a problem that the root pot cannot be reliably held.

  Furthermore, from the viewpoint of increasing the pulling strength of such wooden piles, patent applications such as the following Patent Document 2 have also been made. That is, the method described in Patent Document 2 is a method in which a wooden support pile is driven along the peripheral surface of the root pot and a wooden root rod member is attached to the support pile in a lateral direction.

  However, in the method described in Patent Document 2, two root members are obtained by inserting a pile into one of the root anchors having two rings and inserting a root member into the other ring. Since it is attached so as to straddle the other pile, there has been a problem that the work itself in which the pile and the root member are inserted into such a ring is complicated. Moreover, even if such a root member was used, the pulling-out resistance of the pile could not be essentially increased.

  Furthermore, in order to fix the root pot after looking at the standing state of the tree, it is necessary to put reserve soil between the lower part of the root pot and the bottom wall surface of the planting hole. If the spare soil is put in such a way, the spare soil becomes an obstacle when the root member is inserted into the ring and fixed, and the spare soil that has been stored is removed from the planting hole. In other words, a situation arises in which it is necessary to carry out the mounting work or to mount the base member in a state where the root member or the like is hardly buried in the ground. In addition to the pile, the wooden root member obtained by cutting the pile is buried in the ground, so when the cut root member is corroded, oxygen and nitrogen in the soil are taken away. As a result, there is a risk of adversely affecting the growth of trees.

  In any case, in the method using a wooden pile as in the above-mentioned conventional patent documents 1 and 2, the wooden pile itself has a weaker pulling resistance than a metal pile, and as a result, the tree has a tilting force. When this occurs, the pile may come off carelessly, and the original function of fixing the root pot and supporting the tree may be lost.

Japanese Unexamined Patent Publication No. 7-274745 JP 2004-73075 A

  The present invention has been made to solve such problems, and from the viewpoint of natural environment destruction, despite using mainly wooden piles, pulling resistance against piles and lateral pressure resistance against root pots. By applying both forces, the holding force for the root pot is strengthened, the work for supporting construction is made much easier than before, and the cost of the members used for supporting construction is also reduced. It is an object of the present invention to provide a support construction method and a support construction tool that can handle trees.

In order to solve such problems, the present invention was made as a support construction method for trees and a support construction tool used in the support construction method. The feature of the tree support construction method is that the root of the tree 16 The pile 1 is driven into the ground along the side surface of the pot 17, and the tension transmitting member 5 is installed obliquely downward across the position eccentric from the shoulder side of the root pot to the outside of the axial center of the pile 1. Then, the wrapping belt 7 is wound around the upper surface of the root pot, and the tension generated in the wrapping belt 7 is applied to the pile 1 from the root portion side of the tension transmitting member 5 installed on the shoulder portion side of the root pot. The hanging belt 7 is attached to the tension transmission member 5 so as to be transmitted to the tip end side of the tension transmission member 5 installed at a position eccentric to the outer side from the axial center of the shaft, and the tree is supported. It is.

  Furthermore, the features as a support construction tool are the pile 1 for driving into the ground along the side surface of the root pot 17 of the tree 16, and the eccentric from the shoulder side of the root pot to the outside of the axial center of the pile 1. The tension transmission member 5 installed so as to straddle the position and the tension transmission member 5 is attached to the tension transmission member 5 so as to be wound around the upper surface of the root pot and to transmit the tension of the tension transmission member 5. It is configured to include the wrapping belt 7 and means for generating tension on the wrapping belt 7.

  It is also possible to install a shoulder pad 4 on the shoulder part of the root pot and attach the root part of the tension transmitting member 5 to the shoulder pad 4. Moreover, the pile holding body 2 which has the holding | maintenance part 2a which can hold | maintain the pile 1, and the eccentric attachment 9 protrudingly provided in the position eccentric | decentered outward from the axial center part of the said pile 1 from this holding | maintenance part 2a, It is also possible to attach to the pile 1 so as to be held by the holding portion 2a, and to attach the tip end portion of the tension transmitting member 5 to the eccentric attachment 9. Furthermore, the lateral pressure resistance member 3 that causes the lateral pressure resistance force to act on the root pot 17 can be provided inside the pile holder 2. Further, the shoulder pad 4, the pile holder 2, the tension transmission member 5 installed from the shoulder pad 4 to the eccentric attachment 9 of the pile holder 2, and the lateral pressure resistance member 3 are integrated to fix the root pot. It is also possible to construct a body. Further, it is possible to further include a pulling resistance member 6 that generates a resistance force against the pulling of the pile 1.

  Further, a mounting bracket 14 for attaching the end portion of the wrapping belt 7 and a winch 8 for attaching the end portion of the wrapping belt 7 and tightening the wrapping belt 7 are attached to the base side of the tension transmitting member 5. The belt 7 can be tensioned by tightening the winch 8. Further, it is possible to form a hooking portion 5a that can hook the hanging belt 7 on the base portion side of the tension transmitting member 5, and to hang the belt on the base portion side of the tension transmitting member 5. It is also possible to attach a mounting bracket 14 for attaching the end portion 7 and a winch 8 to which the end portion of the hanging belt 7 is attached and tension is applied to the hanging belt 7.

  In the present invention, as described above, the pile is driven into the ground along the side surface of the root pot of the tree, and straddles the position eccentric from the shoulder side of the root pot to the outside of the axial center of the pile. Install the tension transmission member diagonally downward, hang it around the upper surface of the root basin, hang the belt, and the tension generated on the wrapping belt is the root side of the tension transmission member installed on the shoulder side of the root basin In order to install the hanging belt to the tension transmission member so as to be transmitted to the tip end side of the tension transmission member installed at a position eccentric to the outside from the axial center portion of the pile, The tension generated by the tilting force of the belt is transmitted from the root side of the tension transmitting member installed on the shoulder side of the root pot to the tip side, and the tip side of the tension transmitting member is connected to the shaft of the pile. Because it exists at a position eccentric to the outside of the center, The tension transmitted to the tip side of the tension transmitting member not only acts in the vertical direction as a resistance against pulling out the driven pile, but also as a lateral pressure resistance that presses the pile laterally against the root pot. Therefore, the tension generated in the belt is converted into such a force acting in both directions.

  Accordingly, the pulling resistance force against the pulling of such a pile and the lateral pressure resistance force pressing laterally against the root pot, the upper surface, the shoulder portion, and the side surface of the root pot by the hanging belt, the tension transmission member, and the pile. It becomes the state hold | maintained integrally, and it will produce the powerful and integral resistance force, and it has the effect that it can suppress so that the initial movement of a tree may be reduced when tilting force arises by it.

  In addition to piles, it can be constructed using a simple construction support tool that only has a hanging belt, tension transmission member, etc. There is an effect that a tool can be provided.

  In addition, unlike the conventional method, it does not require the troublesome work of inserting the root anchor member into the ring and fixing it, so when fixing the root pot after looking at the standing state of the tree, Even if spare customer land is added, there will be no hindrance to construction work. Further, unlike the conventional method, the root rod member obtained by cutting the pile is not buried in the ground, so that there is no possibility of adversely affecting the growth of trees.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
As shown in FIGS. 1 to 12, the support construction tool of the present embodiment includes a wooden pile 1 for driving into the ground along the side surface of the root pot, and a pile holding body for externally fitting and holding the pile 1. 2, a lateral pressure resistance member 3 fixed to the inside of the pile holder 2 and brought into contact with the side surface of the root pot, a shoulder pad 4 brought into contact with the shoulder portion of the root pot, and hung around the upper surface of the root pot A tension belt 7, a tension transmission member 5 that transmits the tension generated in the tension belt 7 from the shoulder pad 4 side to the pile holder 2 side, and a pulling resistance member 6 that generates a resistance force against the lifting of the pile 1 And a winch 8 for tightening the wrapping belt 7.

  Among these members, the pile holding body 2, the lateral pressure resistance member 3, the shoulder pad 4, and the tension transmission member 5 are integrated to form root pot fixing bodies 20a and 20b. Yes. In the present embodiment, a total of four root pot fixing bodies 20a, 20a, 20b, 20b are installed around the root pot 17, but two types of root pot fixing bodies 20a, 20b having different structures are each 2 Used one by one. This point will be described later.

  As shown in FIG. 1, the pile 1 is formed in the form of a general log pile, and its lower end 1a is formed sharply so that it can be driven into the ground. As shown in FIGS. 2 to 6, the pile holder 2 is formed in a substantially cylindrical shape having an inner diameter substantially the same as the outer shape of the pile 1 so that the pile 1 can be externally inserted and is not easily detached. The holding portion 2a and an eccentric attachment 9 projecting outward from the holding portion 2a to a position eccentric to the outside of the axial center portion of the pile 1 are provided. As shown by a two-dot chain line in FIG. 2, bolts 27 and 27 are inserted into the holding portion 2a of the pile holder 2 from two places, and the bolts 27 and 27 inserted through the two places hold the pile. The pile 1 inserted in the holding part 2a of the body 2 will be fixed.

  As shown in FIG. 2, the lateral pressure resistance member 3 includes a thin metal frame 3a and a plurality of thin metal vertical frames 3b arranged in the vertical direction of the frame 3a. Yes. And from the diagonal rear part side of the said pile holding body 2, the construction rods 2b and 2b are spanned and fixed toward the both sides of the frame frame 3a of the said lateral pressure resistance member 3. As shown in FIG. The lateral pressure resistance member 3 is fixed to the inner surface side of the holding portion 2a of the pile holder 2.

The shape of the tension transmitting member 5 is slightly different depending on the two types of root pot fixing bodies 20a and 20b described above. In one root pot fixing body 20a around which the hanging belt 7 is hung, as shown in FIGS. 2 to 4, a substantially home base (pentagonal) ring-shaped hooking portion 5a is formed on the upper part of the tension transmitting member 5. The base portion 5c of the hook portion 5a and the vicinity of the root portion 5c are fixed to the shoulder pad 4 with bolts 21, and the base portion 5c and the portion of the hook portion 5a other than the vicinity thereof are shown in FIG. As shown, it is formed away from the shoulder pad 4. A hanging belt 7 to be described later is hung on the portion of the hooking portion 5a separated from the shoulder pad 4. The shoulder pad 4 is formed with two ribs 4a and 4a.
As shown in FIG. 2, a substantially circular ring body 5 b is formed at the lower part of the tension transmission member 5, and this ring body 5 b serves as an attachment portion to the pile holding body 2. More specifically, an insertion hole 9a is formed in the eccentric attachment 9 projecting outward from the holding portion 2a of the pile holding body 2, and the ring body 5b of the tension transmitting member 5 is inserted into the insertion hole 9a. The tension transmission member 5 is attached to the pile holder 2 by being inserted.

As shown in FIGS. 5 and 6, the mounting bracket 14 and the winch 8 are attached to the upper portion of the tension transmitting member 5 in the other root pot fixing body 20 b to which the end of the hanging belt 7 is attached. . In this case, as shown in FIG. 5, the mounting bracket 14 and the winch 8 are coaxially connected to the shoulder pad 4 via the upper portion of the tension transmitting member 5 with bolts 22 so as to form an angle of about 90 degrees with each other. It is attached.
In this case, the bolt 22 that coaxially attaches the mounting bracket 14 and the winch 8 is attached at a position shifted to the right side from the center of the shoulder pad 4 as shown in FIG.
The end portion 8 a of the winch 8 on the side where the belt 7 is attached is set so as to be positioned at the approximate center of the shoulder pad 4. This is because when the winch 8 is tightened, the force pressing the shoulder pad 4 is most strongly applied to the end portion 8a of the winch 8 on the side where the belt 7 is attached. When located in the center, the end 8a of the winch 8 is present at a position displaced to the left, so that the end of the winch 8 opposite to the side on which the belt 7 is attached is lifted. This is because the force for pressing the pad 4 may be reduced.

In order to increase the pulling strength, the pulling resistance member 6 is shown in FIGS.
The plate 6a is formed in a shape provided with ribs 30 curved in a substantially semicircular shape at four locations on the upper surface side, and a suspension rod 10 for suspending the lifting resistance member 6 is attached to the upper portion thereof. Further, a mounting portion 11 is formed on the upper portion thereof. And a bolt etc. are penetrated by the hole 12 of the attaching part 11 of this raising resistance member 6, and the insertion hole 9b of the eccentric attachment 9 shown in FIG. It will be attached to the body 2. Further, a reinforcing member 13 formed in a substantially U shape is attached to the back surface side of the pulling resistance member 6.

  As shown in FIG. 10, the front end 29 side of the wrapping belt 7 is inserted into the long hole 28 of the mounting bracket 14, whereby the front end 29 side of the wrapping belt 7 is attached to the mounting bracket 14. As described above, when the mounting bracket 14 and the winch 8 are coaxially attached to the shoulder pad 4 via the upper portion of the tension transmitting member 5 by the bolt 22, the insertion portion of the bolt 22 is inserted into the mounting bracket 14. An insertion hole 23 is formed. Then, in a state where the bolt 22 is inserted into the insertion hole 23 and the mounting bracket 14 and the winch 8 are mounted on the shoulder pad 4, the mounting bracket 14 is configured to be movable left and right. As a result, the tightening force of the winch 8 preferably acts not only on the end portion of the belt 7 attached to the winch 8 side but also on the end portion of the belt 7 attached to the mounting bracket 14 side. The tension of the belt 7 is preferably generated.

  As shown in FIGS. 11 and 12, the winch 8 includes a shaft portion 24 to which an end portion of the belt 7 is attached, a ratchet 25 on both sides of the shaft portion 24, and the ratchet 25. And a possible locking body 26. As described above, the end 8a of the winch 8 is positioned substantially at the center of the shoulder pad 4 and presses the shoulder pad 4. Strictly speaking, the lower side of the end 8a of the winch 8 holds the shoulder pad 4. It will be pressed down.

  As the material of the wrapping belt 7, a material that decomposes with the passage of time, for example, a biodegradable resin, and other materials such as hemp, cotton, and jute can be used. As the biodegradable resin, a material such as polylactic acid or polybutylene succinate can be used. Moreover, as a form of the material of the wrapping belt 7, a thread made of the above-described biodegradable resin, such as a form in which a thread such as that used in Teggs is knitted or woven can be used. In this case, the entire wrapping belt 7 may be made of the degradable material as described above, but in this embodiment, as shown in FIG. 10, it is inserted into the long hole 28 of the mounting bracket 14. Only the tip portion 29 that is a portion is made of a degradable material, and the other parts of the wrapping belt 7 may be made of a material that is difficult to be decomposed, such as a general synthetic resin material. . By configuring in this way, for example, the tip portion 29 of the wrapping belt 7 is made of a relatively expensive biodegradable resin, and the portions other than the tip portion 29 are made of a relatively inexpensive general-purpose synthetic resin. The cost can be reduced.

  Next, a method for performing tree support construction using the tree support construction tool having the above-described configuration will be described. First, as shown in FIG. 13, a root pot 17 of a tree 16 is housed in a previously formed planting hole 15, and the root pot 17 is placed on the bottom wall surface 18 thereof.

  Next, as shown in FIG. 14, the pile 1 is driven into the bottom wall surface 18 of the planting hole 15 with a hammer or the like along the side surface of the root pot 17. In this case, the pile 1 is driven so as to be inclined slightly inward as shown in FIG. In addition, in the part which makes the pile holding body 2 mentioned later fit in the pile 1, since the lateral pressure resistance member 3 will contact a root pot, the pile 1 is not contacting the root pot directly, but the above-mentioned By driving the pile 1 so as to be inclined slightly inward as described above, the pile 1 is in contact with the root pot at least in the lower portion.

  In addition, it is desirable to preliminarily reserve the soil 19 on the bottom wall surface 18. And after driving the pile 1 into the bottom wall surface 18, the upper end part of the pile 1 is cut | disconnected so that the pile 1 may become desired height. The desired height in this case is such a height that the upper end of the pile 1 after cutting is slightly lower than the upper surface of the root pot 17 as shown in FIG. As described above, as a result of the upper end portion of the pile 1 after cutting being slightly lowered from the upper surface of the root pot 17, the tension transmitting member 5 is inclined downward from the shoulder pad 4 toward the pile holder 2 as described later. Thus, it will be constructed by the shoulder pad 4 and the pile holder 2.

  Next, the support construction tool is installed around the root pot 17. At that time, first, as shown in FIGS. 15 and 16, the hanging rod 10 is attached to the root pot fixing bodies 20 a and 20 b including the pile holding body 2, the lateral pressure resistance member 3, the shoulder pad 4, and the tension transmission member 5. The pull-up resistance member 6 is attached to the pull-up resistance member 6 so as to be integrated. Specifically, the insertion hole 9b of the eccentric attachment 9 protruding from the pile holding body 2 among the members constituting the root pot fixing bodies 20a, 20b, and the hole 12 of the attachment portion 11 of the lifting resistance member 6 In addition, the pulling resistance member 6 is attached to the pile holder 2 by inserting a bolt or the like. The pull-up resistance member 6 can be attached to the pile holder 2 at the construction site, but before being brought to the construction site, it is attached to the pile holder 2 in advance and integrated with the root pot fixing bodies 20a and 20b. You may keep it.

  Then, four root pot fixing bodies 20a and 20b in which the pulling resistance members 6 are integrated are installed at substantially equal intervals around the root pot 17, as shown in FIGS. In this case, of the two types of root pot fixing bodies 20a and 20b, one root pot fixing body 20a around which the hanging belt 7 is hung is installed at an opposing position around the root pot 17 as shown in FIG. The other root pot fixing body 20b to which the mounting bracket 14 and the winch 8 to which the end portion of the hanging belt 7 is attached is also installed at opposing positions around the root pot 17 as shown in FIG.

  Thus, when installing the root pot fixing bodies 20a and 20b around the root pot 17, the shoulder pad 4 is installed on the shoulder portion of the root pot 2 while the pile holder 2 is externally fitted into the pile 1. Further, a lateral pressure resistance member 3 is installed on the side surface of the root pot 2. In this case, the pile holding body 2 is fixed to the outside of the lateral pressure resistance member 3, and the tension transmitting member 5 is attached to the eccentric attachment 9 and the shoulder pad 4 protruding outward from the pile holding body 2. It is in a erected state.

  As a result, the shoulder pad 4 and the lateral pressure resistance member 3 are installed on the shoulder and the side surface of the root pot, and the pile holding body 2 is also along the side surface of the root pot by installing the lateral pressure resistance member 3. Will be installed. Further, the pulling resistance member 6 that has been attached in advance to the eccentric attachment 9 of the pile holding body 2 via the hanging rod 10 is installed on the bottom wall surface 18. Four lifting resistance members 6 are also installed at substantially equal intervals around the root pot 17.

  Next, as shown in FIGS. 19 to 21, the hanging belt 7 is hung on the upper surface near the shoulder portion of the root pot 17. In this case, out of the four root pot fixing bodies, the two facing root pot fixing bodies 20a have an annular hooking of the tension transmitting member 5 fixed to the shoulder pad 4 of the root pot fixing body 20a. The belt 5 is simply inserted into the portion 5a and is wound around, but on the upper part of the tension transmitting member 5 fixed to the shoulder pad 4 of the two other root-cap fixing bodies 20b facing each other. Since both the mounting bracket 14 and the winch 8 are coaxially mounted as described above, the both ends of the hanging belt 7 are connected to the mounting bracket 14 and the winch 8 as shown in FIGS. Are attached to each other and tightened with the winch 8, tension is generated on the belt 7, thereby fixing the root pot 2.

  Further, in this case, the tension transmitting member 5 of one root pot fixing body 20a having the hooking portion 5a around which the hanging belt 7 is hung, the winch 8 and the mounting bracket 14 at both ends of the hanging belt 7 are attached. The tension transmitting member 5 of the other root pot fixing body 20b is in a state of being laid on the shoulder pad 4 and the eccentric attachment 9 projecting outside the pile holding body 2. Since the upper end portion of the pile 1 to which the pile holder 2 is attached is set to be slightly below the shoulder portion of the root pot 17 on which the shoulder pad 4 is installed, the tension transmission member 5 is And it will be in the state constructed so that it might become diagonally downward toward the eccentric attachment 9 of the pile holder 2 from the shoulder pad 4. FIG.

Then, with the tension transmission member 5 obliquely installed on the shoulder pad 4 and the eccentric attachment 9 in this way, the hook portion 5a on the base portion side of the tension transmission member 5 attached to the shoulder pad 4 side is provided. When the hung belt 7 is tightened with the winch 8, the tension generated in the hung belt 7 by the tightening is applied to the hooking portion 5a of the tension transmission member 5 on which the hung belt 7 is hung. The tension is also applied to the tension transmitting member 5 that is transmitted and installed on the shoulder pad 4 and the eccentric attachment 9.
In the other root pot fixing body 20b, the hook portion 5a does not exist at the root portion of the tension transmitting member 5, but the mounting bracket 14 and the winch 8 for attaching the end portion of the hanging belt 7 are attached. Therefore, as in the case of the tension transmission member 5 of the one root pot fixing body 20a, the tension generated in the hanging belt 7 is transmitted to the root portion of the tension transmission member 5, and the shoulder pad 4 and the eccentric attachment 9 Tension is also applied to the tension transmission member 5 installed on the frame.

  On the other hand, a pile holder 2 is externally fitted to the pile 1, and the pile 1 is held by the pile holder 2, and the pile 1 is driven into the bottom wall surface 18 of the planting hole 15 along the side surface of the root pot 17. . Therefore, when tension is generated in the belt 7 by tightening the winch 8 as described above, the tension is transmitted to the eccentric attachment 9 via the tension transmission member 5 and is used as a resistance force against the pulling of the pile 1. While acting in the vertical direction, it also acts in the lateral direction as a lateral pressure resistance force pressing the pile 1 inward against the root pot. As a result, the root pot 17 is fixed. Details of this action will be described later as resistance when a tilting force is generated in the tree.

  Further, after the wrapping belt 7 is wrapped around the upper surface of the root pot and tightened with the winch 8 as described above, soil is put into the planting hole 17 to close the planting hole 17 to support the tree. Is completed.

When a tilting force is generated in the trees constructed in this way, tension is generated in the wrapping belt 7 as a resistance force against the tilting force, and the tension is the tension applied by the wrapping belt 7. 24 is transmitted to the latching portion 5a of the transmission member 5, and as a reaction of the tension, a resistance force in the direction of arrow A in FIG. 24 is applied to the portion of the latching portion 5a around which the looping belt 7 is wound. Due to the resistance force, a holding force for the root pot 17 by the shoulder pad 4 in the vicinity of the hooking portion 5a of the tension transmitting member 5 is generated. Further, as a reaction of the resistance force in the direction of the arrow A, a resistance force as shown in the direction of the arrow B in FIG. Is transmitted to. Even in the tension transmission member 5 of the other root pot fixing body 20b where the hooking portion 5a does not exist, the mounting bracket 14 and the winch 8 for attaching the end of the hanging belt 7 are attached to the root portion. The resistance force in the direction of arrow A in FIG. Therefore,
Similarly, an oblique force in the direction of arrow B is also generated and transmitted to the eccentric attachment 9.

  In this case, an upward pulling force is originally generated on the pile 1 due to the tilting force acting on the tree, but a resistance force as a reaction of the tension of the hanging belt 7 is transmitted via the tension transmitting member 5. Since the eccentric attachment 9 is provided at a position eccentric to the outside from the axial center portion of the pile 1, the pull-out force does not occur upward along the axial center portion of the pile 1. Further, since the tension transmitting member 5 is installed obliquely from the shoulder pad 4 toward the eccentric attachment 9, the force transmitted to the eccentric attachment 9 in the oblique direction along the tension transmitting member 5 is As a lateral pressure resistance force as a reaction, it acts on the pile holder 2 side as shown in the direction of arrow C in FIG. 24, and further acts on the root pot 17 side from the pile holder 2 as shown in the direction of arrow E in FIG. At the same time, it acts also in the downward direction (in the direction of arrow D in FIG. 20) as a resistance against the pulling-out of the pile 1 that has been driven. Thus, the tension acting on the belt 7 by the tilting force of the tree is converted into such a force acting in both directions.

  Further, in this case, since the lateral pressure resistance member 3 is provided inside the pile holder 2, the lateral pressure resistance force acting on the root pot 17 side from the pile holder 2 is the same as that of the pile holder 2. As a pressing force of the externally inserted pile 1 to the root pot 2 side, it is further amplified by the lateral pressure resistance member 3, and a strong lateral pressure resistance force acts on the root pot 2 by the lateral pressure resistance member 3. It is. Further, in the same manner that the resistance force against the pull-out of the pile 1 acts downward, the pull-up resistance member 6 also has a resistance force against the pull-out (in the direction of arrow F in FIG. 20).

  In this embodiment, the wooden pile 1 is used as a pile driven into the ground along the side surface of the root pot as described above, and such a pile 1 originally has a weak pulling resistance and is pulled out right above. However, in this embodiment, when a tilting force is generated in the tree, the tilting force is biased outward from the axial center portion of the pile 1 via the tension transmitting member 5. Since it acts obliquely downward with respect to the eccentric eccentric attachment 9, this tilting force 5 is transmitted to the pile holder 2 via the eccentric attachment 9, and the pile held by the pile holder 2 The resistance of 1 will be pulled out to the maximum. Then, the resistance is transmitted to the root pot through the lateral pressure resistance member 3, and the shoulder surface of the root pot where the shoulder pad 4 is installed and the side surface of the root pot where the lateral pressure resistance member 3 is installed. Both are held as a whole and the tree is supported.

  As described above, in this embodiment, the pile holder 2, the lateral pressure resistance member 3, and the shoulder pad 4 are provided, and from the shoulder pad 4 toward the eccentric attachment 9 that protrudes outside the pile holder 2. The tension transmitting member 5 is installed obliquely downward, and the eccentric attachment 9 is located at a position eccentric to the outside from the axial center portion of the pile 1. It will be in the state where the side of the bowl was held in one, and will produce strong integral resistance. In addition, the pulling resistance member 6 acts on the pulling out of the pile 1 as described above and exhibits a strong resistance. As a result, the initial fall of the tree is very little.

  In addition, in the said embodiment, although the pile holding body 2 was formed in the cylindrical shape, the shape of the pile holding body 2 is not limited to the said embodiment, For example, even if it is a thing like a square cylinder shape. Good. Moreover, shapes other than a cylinder shape, for example, a planar semicircle shape, may be used. The point is that the pile 1 can be held. Moreover, you may attach the eccentric attachment 9 directly to a pile, without providing such a pile holding body 2. FIG. In this case, for example, the eccentric attachment 9 made of a metal fitting can be driven and attached to the outside of a square cylindrical pile. Therefore, providing the pile holder 2 is not an essential condition for the present invention.

  Furthermore, in the said embodiment, the upper part of the pile 1 in which the pile holding body 2 is externally inserted is not in direct contact with the root pot 17, but the lower part of the pile 1 is in a state where the pile 1 is inclined slightly inward. However, the present invention is not limited to this, and substantially the entire pile 1 may be brought into contact with the root pot 17 or may be slightly separated from the root pot 17. That is, in the present invention, “driving the pile 1 along the side surface of the root pot 17” means that the pile 1 is aligned with the side surface of the root pot 17 regardless of whether the pile 1 is brought into contact with the root pot. Means that.

  Further, the shape of the lateral pressure resistance member 3 and the shoulder pad 4 is not limited to the embodiment. In addition, although the above preferable effect was acquired by providing the lateral pressure resistance member 3, providing this lateral pressure resistance member 3 is not an essential condition for this invention. Further, in the above embodiment, since the pulling resistance member 6 is provided, a preferable effect of suitably generating the resistance force against the pulling out as described above can be obtained. It is not an essential condition for the invention. Furthermore, the procedure for installing the pile holder 2, the lateral pressure resistance member 3, the shoulder pad 4, the tension transmission member 5, the pulling resistance member 6, the wrapping belt 7 and the like is not limited to the above embodiment, and is arbitrarily set. It can be changed.

  In the present invention, as described above, from the viewpoint of destruction of the natural environment, the main purpose is to use the wooden pile 1, but the scope of the present invention is not limited to the wooden one but also when using a metal pile. include. In addition, the present invention is mainly applied to the construction of a so-called underground strut in which a root pot 17 is housed in a planting hole 15 formed in advance on a general ground and a tree is supported and constructed. In addition to general ground, the present invention can also be applied to support construction of trees on artificial ground. When used for such an artificial ground, it is not necessary to form the planting hole 15, and it is possible to support the tree by stacking artificial soil so that the root pot 17 is embedded.

The front view of the pile of the support construction tool of one Embodiment. The front view of one root-pot fixing body which consists of a shoulder pad, a pile holding body, a lateral pressure resistance member, and a tension transmission member. The same side view. FIG. The front view of the other root pot fixing body. The top view of the other root pot fixing body. The top view of a raising resistance member. The front view. The same side view. The principal part enlarged plan view of the edge part vicinity of a hanging belt. The enlarged top view of a winch. The enlarged side view of a winch. The schematic side view of the state which accommodates a root pot in a planting hole. The schematic side view of the state which struck the pile. The schematic plan view of the state which attached the pulling-up resistance member to one root pot fixing body. The schematic plan view of the state which attached the pulling-up resistance member to the other root pot fixing body. The schematic side view of the state which installed the root pot fixed body and the raising resistance member in the root pot. FIG. The schematic side view of the state which hung the hung belt. FIG. The schematic perspective view. The principal part expansion side view. The principal part enlarged plan view. The principal part expansion perspective view for demonstrating the effect | action of resistance.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Pile 2 ... Pile holding body 3 ... Lateral pressure resistance member 4 ... Shoulder pad 5 ... Tension transmission member 6 ... Lifting resistance member 7 ... Hanging belt 8 ... Winch 9 ... Eccentric attachment 14 ... Mounting bracket

Claims (12)

  The pile (1) is driven into the ground along the side surface of the root pot (17) of the tree (16), and straddles the position eccentric from the shoulder side of the root pot to the outside of the axial center of the pile (1). Thus, the tension transmitting member (5) is installed obliquely downward, the belt (7) is hung on the upper surface of the root pot, and the tension generated in the hung belt (7) is the shoulder of the root pot. It is transmitted from the base part side of the tension transmission member (5) installed on the side to the distal end side of the tension transmission member (5) installed at a position eccentric to the outside from the axial center part of the pile (1). As described above, a method for supporting and supporting trees is provided by attaching the hanging belt (7) to the tension transmission member (5) and supporting the trees.   The tree support construction method according to claim 1, wherein a shoulder pad (4) is installed on a shoulder portion of the root pot, and a root portion of the tension transmitting member (5) is attached to the shoulder pad (4).   A holding part (2a) capable of holding the pile (1), and an eccentric attachment (9) protruding from the holding part (2a) at a position eccentric to the outside of the axial center part of the pile (1); A pile holding body (2) having a tip is attached to a pile (1) so as to be held by the holding portion (2a), and a tip end portion of a tension transmitting member (5) is attached to the eccentric attachment (9). A method for supporting and supporting a tree according to 1 or 2.   Tension transmission between the mounting bracket (14) for attaching the end of the hanging belt (7) and the winch (8) for attaching the end of the hanging belt (7) and tightening the hanging belt (7) The method for supporting and supporting trees according to any one of claims 1 to 3, wherein the tree (5) is attached to a root portion side and tension is generated on the belt (7) by tightening the winch (8). A pile (1) for driving into the ground along the side surface of the root pot (17) of the tree (16), a hanging belt (7) hung on the upper surface of the root pot, and the hanging belt (7 ) And the tension generated in the wrapping belt (7) are transmitted from the shoulder side of the root pot to the position eccentric to the outside of the axial center of the pile (1). , characterized in that the tension transmission member (5) installed straddling eccentric position is constituted by provided outside the axial center portion of the pile (1) from the shoulder portion side of the該根pot Supporting tool for trees. A holding portion (2a) that can hold the pile (1), and a tension transmitting member (5) that protrudes from the holding portion (2a) to a position that is eccentric to the outside of the axial center portion of the pile (1). The tree support construction tool according to claim 5, further comprising a pile holder (2) having an eccentric attachment (9) capable of attaching a tip part . The tree support construction tool according to claim 6, wherein a lateral pressure resistance member (3) for applying a lateral pressure resistance force to the root pot (17) is provided inside the pile holder (2) . The tree support construction according to any one of claims 5 to 7 , further comprising a shoulder pad (4) to which a root part of the tension transmitting member (5) is attached and which is installed on a shoulder part of the root pot (17). Tools. A shoulder pad (4) is further provided that is attached to the shoulder of the root pot (17) by attaching the base of the tension transmitting member (5), and the tension transmitting member (5) is piled from the shoulder pad (4). are bridged eccentricity attachment of the holding member (2) (9), wherein the shoulder pads (4), the pile carrier (2), Tsutomu Cho transmitting member (5), but the lateral force resistance member (3) The tree support construction tool according to claim 7, wherein the root pot fixing body is integrated.   The tree support construction tool according to any one of claims 5 to 9, further comprising a pull-up resistance member (6) for generating a resistance force against the pull-up of the pile (1). The tree support according to any one of claims 5 to 10, wherein a hooking portion (5a) capable of hooking the hanging belt (7) is formed on a base portion side of the tension transmitting member (5). Construction tool.   An attachment bracket (14) for attaching the end of the hanging belt (7) and an end of the hanging belt (7) are attached to the base of the tension transmission member (5), and the hanging belt (7 The tree support construction tool according to any one of claims 5 to 10, wherein a winch (8) for generating tension is attached to the tree.

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