JP5975278B2 - Planting tree support and installation method thereof - Google Patents

Description

  The present invention relates to a support tool for supporting planted trees and preventing them from falling down due to a storm or the like and a method for installing the support tool.

As is well known, planting is usually done as external work when creating parks and green spaces or building buildings and various structures, and transplanting large trees with a height of more than 8 m There are many things to do.
In such a case, it is necessary to support at least until the planted tree is fully rooted in order to prevent the fall, and various supports for that purpose have been proposed and put into practical use.

  As this type of support, for example, as shown in Patent Documents 1 and 2, a ground support type that supports a tree trunk by standing a plurality of (usually 2 to 4) support posts around a planted tree. Or, as shown in Patent Documents 3 to 6, a structure of an underground strut in which a large number of underground piles and anchors are embedded around the root pot to fix the root pot is common.

Japanese Utility Model Publication No. 62-187571 Japanese Utility Model Publication No. 4-48685 JP-A-9-56270 JP 2000-245273 A JP 2001-128568 A JP 2009-273384 A

  In recent years, events such as tornadoes and guerrilla heavy rains frequently occur, and accidents such as roadside trees caused by storms frequently occur in urban areas. Especially in coastal areas, there is a concern that large tree fall accidents will occur in the future because of the influence of storms and ground loosening due to heavy rain.

Therefore, although it is said that it is necessary to take measures to prevent the fallen tree accident of the planted tree, it is not always sufficient support by the conventional general support tool as shown in Patent Documents 1-6. A force cannot be obtained, and it is not easy to sufficiently enhance the supporting force.
That is, in the case of the ground support type as shown in Patent Documents 1 and 2, the support itself may be pulled out relatively easily and lose the supporting force at an early stage. Such a type of underground strut may not always sufficiently restrain the rotation and sliding of the root pot in the planting hole, and none of them can sufficiently prevent a fallen tree accident caused by a storm.

  In addition, the above-mentioned conventional various support tools are not only sufficient in supporting force, but also depend on the workman's skill and experience, and the construction accuracy is not limited, and workability and design uniform construction completion There is also room for improvement in terms of appearance.

  In view of the above circumstances, the present invention is capable of firmly supporting planted trees and reliably preventing the collapse thereof, as well as an effective and suitable planted tree support tool having excellent workability and design, and installation thereof It aims to provide a method.

The invention according to claim 1 is a support tool for supporting a planted tree and preventing its collapse, and an underground frame body that surrounds a root pot of the planted tree and is buried in the surrounding ground. The support frame is composed of a plurality of pillars erected around the planted tree, and the underground frame is configured by connecting ends of a plurality of horizontal members, and a lower end portion of the pillars is the horizontal member. pivotally coupled, characterized in that the upper end of the strut is configured to support the trunk of the plant栽樹tree against.

  Invention of Claim 2 is a planted tree support tool of Claim 1, Comprising: The said underground frame body is assembled | attached in the shape of a cross by connecting the edge parts of four horizontal materials, A lower end portion of the support column is swingably connected to a connection portion between the horizontal members by a connection fitting.

Invention of Claim 3 is the installation method for installing the planting tree support tool of Claim 1 or 2, Comprising: The root pot of the said planting tree can be embed | buried, and several horizontal around the said root pot Excavating a planting hole of a size capable of embedding the underground frame constituted by connecting the ends of the material, and connecting the lower end of the column to the horizontal material so as to be swingable in advance. In addition, the underground frame is disposed on the outer periphery of the planting hole, and the struts are expanded toward the outside of the underground frame, and the root pot is placed inside the underground frame in that state. After placing the column, the planted tree is temporarily supported by the column and the underground frame by connecting the upper end of the column to the trunk of the planted tree by raising the column to the inside. Then, after filling the planting hole back together with the root pot, the underground frame and the strut Characterized by embedding the ends into the ground.

Since the planting tree support tool of the present invention embeds the underground frame body in a horizontal posture in the ground around the root pot, and connects the lower end of the column to the underground frame body, Compared to the case where the underground frame functions as a retaining mechanism and the struts are simply driven into the ground, the pulling strength is greatly improved. The fall prevention effect for trees can be sufficiently enhanced.
In addition, since the underground frame is embedded around the root pot, the underground frame can effectively restrain the rotation and sliding of the root pot in the planting hole, thereby preventing the fall of planted trees. It can be expected, and it can be sufficiently filled with planting soil around the root pot compared with the conventional underground strut type that requires many underground piles and anchors in the planting hole However, there is also an advantage that the root pot is hardly damaged and the root growth is hardly hindered.
And since the planting tree support of the present invention has a simple configuration in which the lower end portion of the support column is simply connected to the underground frame body, anyone can construct it easily and nicely. If the specifications of each component are set based on a certain standard and mass-produced in advance, the entire support can be manufactured at a sufficiently low cost.

  Furthermore, according to the planting tree installation method of the present invention, when installing the support, the lower end of the column is connected to the underground frame in a swingable manner in advance, After placing the root pot on the inside as a state where it is placed on the outer periphery in the planting hole and the pillar is expanded outward, the pillar is raised inside and the upper end is connected to the trunk of the planted tree As a result, the planted trees were temporarily supported, and then the planting holes were refilled, so that everyone could easily and varied by industrial methods without being affected by the skill and experience of the installers at the site. It becomes possible to construct with high accuracy without any problems.

It is a figure for demonstrating the schematic structure of the support tool which is embodiment of this invention, and its construction procedure.

An embodiment of a planted tree support and its installation method of the present invention will be described with reference to FIG.
The support tool of this embodiment is for supporting the planted tree 1 and preventing its collapse, and surrounds the root pot 2 of the planted tree 1 and is buried in the surrounding ground. It consists of a body 3 and a plurality of (four in the illustrated example) struts 4 standing around the planted tree 1, and the lower ends of the struts 4 are connected to the underground frame 3. And the upper end part of the support | pillar 4 is comprised so that the trunk of the planting tree 1 can be supported.

In the embodiment of the illustrated example, the underground frame 3 is assembled in a cross-beam shape by connecting the ends of the four horizontal members 3a, and the corners of the underground frame 3 (the connecting portions of the horizontal members 3a). ) Are connected to the lower ends of the columns 4, and the upper ends of the columns 4 are connected to the appropriate cross 5 attached to the trunk of the planted tree 1.
That is, the support tool of the present embodiment is assembled so as to form a substantially regular quadrangular pyramid shape as a whole, and the lower ends of the underground frame 3 and the support column 4 are embedded in the ground around the root pot 2. Thus, the planted tree 1 can be stably and firmly installed around the planted tree 1, and the trunk of the planted tree 1 can be supported from the surroundings by the support 4 in this state to reliably prevent the collapse thereof.

The specifications such as the material, strength, length, and cross-sectional dimensions of the horizontal member 3a and the support column 4 in the support tool of the present embodiment are the height of the planted tree 1 to be supported, the size of the root pot 2, the other conditions as expected. However, in any case, the planted tree 1 is firmly supported by the whole of the square pyramid-shaped supports assembled by the horizontal members 3a and the support columns 4, and the collapse thereof is effectively prevented. What is necessary is just to have the intensity | strength and form which can be performed.
As long as it is used, as the material of the horizontal member 3a and the support column 4, for example, a log material (such as cedar log) made of natural wood can be suitably employed, or a steel pipe or the like as a construction material can also be employed.
In addition, it is preferable to perform an appropriate process for the underground frame body 3 and the support column 4 in consideration of the service life. In particular, when natural wood is used, an antiseptic treatment is used, and when a construction material such as a steel pipe is used. Is preferably subjected to rust prevention treatment or painting.

  Further, the connection of the lower end portion of the support column 4 to the underground frame 3 and the connection of the upper end portion of the support column 4 to the crossbar 5 attached to the trunk of the planted tree 1 are performed when the installation work is performed according to the procedure described later. It is preferable to connect the lower end of 4 to the underground frame 3 so as to be swingable (rotatable in each direction in the vertical plane) in advance. As a connection fitting (not shown), for example, a general-purpose clamp fitting (commonly referred to as an orthogonal ring or a universal ring) for connecting steel pipes as temporary materials can be suitably employed.

The installation method of said support tool, ie, the work procedure for installing the support tool around the planted tree 1 to be supported and thereby supporting the planted tree 1 will be described below.
First, the planting hole 6 for burying the root pot 2 of the planted tree 1 is excavated, but the size thereof is such that the underground frame 3 is arranged around the root pot 2 so that it can be embedded together. It is made slightly larger than the original planting hole 6 corresponding to the shape and dimensions of the underground frame 3. In the case of the illustrated example, since the underground frame 3 has a cross-girder shape (substantially square frame shape), a square-shaped planting hole 6 that is slightly larger than the underground frame 3 may be excavated.

On the other hand, the four horizontal members 3a are connected in advance in the form of a cross beam to assemble the underground frame 3, and the lower end portion of the column 4 is connected to the underground frame 3 using the above-described connecting bracket. By connecting them so as to be swingable, one unit of support is assembled in advance.
Then, the unitized support is placed in the planting hole 6 and the underground frame 3 is horizontally laid on the outer periphery of the planting hole 6, and at this time, the four support columns 4 are unfolded outward. Then, as shown by a chain line in FIG. 1, the state is inclined toward the outside of the underground frame 3.

In that state, the planted tree 1 is gradually suspended from above the planting hole 6, and the root pot 2 is arranged inside the underground frame 3. At that time, by extending the support column 4 to the outside as described above, the space directly above the planting hole 6 is open, so that the support column 4 does not hinder the work of hanging down.
When the root pot 2 is suspended in the planting hole 6, the support column 4 is erected inward as shown by the solid line, the upper end of the support 4 faces the tree trunk, and is connected to the tree trunk through an appropriate cross bar 5. By this, the planting tree 1 is temporarily supported stably so that it cannot fall over at this time.

After that, the planting hole 6 is backfilled as usual, and the root pot 2 is embedded in the planting hole 6, and the lower end portions of the underground frame body 3 and the support column 4 are embedded together with the root pot 2. .
As described above, the installation work of the support tool is completed simultaneously with the transplantation of the planted tree 1, and the support tool is particularly solid when the lower end portion of the underground frame 3 and the column 4 connected thereto is buried in the ground. Therefore, the planted tree 1 is stably supported from the surroundings by the support tool, and its collapse is surely prevented.

Since the support tool having the above configuration embeds the underground frame 3 in the ground around the root pot 2 in a horizontal posture and connects the lower end of the support column 4 to the underground frame 3, Compared to the case in which the underground frame 3 functions as a retaining stopper and the strut 4 is simply driven into the ground, the pulling strength is significantly improved. The fall prevention effect for the planted tree 1 can be sufficiently enhanced as compared with the case of using a typical ground support type support.
Moreover, since the underground frame 3 is embed | buried around the root pot 2, rotation and sliding of the root pot 2 in the planting hole 6 can be effectively restrained by the underground frame 3, and planting by it The fall prevention effect of the tree 1 can also be expected.

Therefore, according to the support tool of the present invention, due to the synergistic effect of the support effect by the support column 4 excellent in the pulling-out resistance as described above and the effect of preventing the rotation and slippage of the root frame 2 by the underground frame 3, a storm or the like It is possible to surely prevent a fallen tree accident of the planted tree 1 due to.
In addition, since the underground frame 3 is only embedded around the root pot 2, compared to a conventional general underground strut type in which many underground piles and anchors need to be provided in the planting hole 6. Further, there is an advantage that the planting soil can be sufficiently filled around the root pot 2, the root pot 2 is hardly damaged, and the root growth is hardly hindered.

In particular, since the support of the present embodiment has a simple configuration in which the lower ends of the four support columns 4 are connected to the underground frame 3 in which the four horizontal members 3a are connected in a cross beam shape, However, it can be constructed easily and nicely.
Then, the dimensions and shapes of the horizontal members 3a and the columns 4 as the constituent elements, the specifications of the materials, etc., and the connecting means for connecting them are set based on a certain standard, and they can be mass-produced in advance. In this case, the entire support can be manufactured at a sufficiently low cost.
Furthermore, when installing the support, as described above, it is assumed that the column 4 is handled as a unit that is swingably assembled with the underground frame 3 in advance, and such a work procedure can be specified in advance as a manual. For example, it is possible for anyone to carry out construction easily and accurately with an industrial method that is not influenced by the skill and experience of the installer, and there is no variation in the finished state or loss of appearance.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments. For example, appropriate design changes and applications as listed below are possible.

  Although the support tool of the said embodiment made the underground frame 3 the form which assembled the four horizontal members 3a in the shape of a cross beam, it is also considered that the underground frame 3 is made into a circular frame shape. In that case, a plurality of curved members obtained by dividing the circular arc into several parts (for example, it is realistic to divide into two to four parts) are used as the horizontal member 3a, and are connected to each other so as to be circular as a whole. 3 may be formed.

  In the above embodiment, the underground frame 3 is shaped like a cross-girder. Therefore, in order to bury it, the planting hole 6 is also excavated in a quadrangular shape. In the case of a circular shape, it is sufficient that the planting hole 6 is also circular as usual and is made slightly larger than usual so as to secure a space for embedding the underground frame 3 around the root pot 2. is there.

In the above embodiment, the underground frame body 3 is also embedded together in the outer peripheral portion of the original planting hole 6 for embedding the root pot 2, and therefore the entire planting hole 6 is made larger than the original size. The excavation is carried out by an amount corresponding to the buried portion of the body 3, but the underground frame 3 needs to be sufficiently larger than the size of the root pot 2 (in other words, the size of the root pot 2). In the case where the root hole 2 is sufficiently smaller than the underground frame 3), a hole for burying the underground frame 3 around the borehole 6 is excavated as the root pot 2 is normally embedded. The hole may be excavated separately from the planting hole 6.
In that case, when the underground frame 3 is shaped like a cross-girder, a rectangular slot may be excavated so as to surround the original planting hole 6, and the underground frame 3 is circular. For this purpose, a circular slot may be excavated so as to surround the original planting hole 6.

Although the support tool of the said embodiment is provided with the four support | pillars 4, the number of the support | pillars 4 can be increased / decreased, for example, in the form of the torii form from the both sides of the planted tree 1 only by the two support | pillars 4 It may be supported from three sides by three columns 4 or, particularly in the case of a large tree, it may be configured to be supported from multiple directions by a large number of columns 4 or more if necessary. good.
Of course, the length (height) of the support column 4 is also arbitrary. Especially when supporting a large tree, if it is necessary to support the height as much as possible, the support column 4 should be made sufficiently long. The underground frame 3 also has an optimal planar shape and dimensions so that the pullout frame 4 can have sufficient pulling strength in response to it, and the embedding depth and the connection of the column 4 to the underground frame 3 are good. The form may be set as appropriate.

  As an installation method for installing the support tool of the present invention, the support tool is assembled as a unit in advance as in the above embodiment, and the lower end of the support column 4 is connected to the underground frame body 3 so as to be swingable. In addition, after placing the planted tree 1 in the planting hole 6 in a state where the unitized support is placed in the planting hole 6 and the support column 4 is expanded outward, the support column 4 is directed inward. It is preferable that the planting tree 1 is temporarily supported by being stood up, and then the planting hole 6 is backfilled and the bottom part of the underground frame body 3 and the support column 4 are buried together with the root pot 2, whereby the most It can be constructed efficiently and accurately by industrial methods.

However, the support of the present invention is not necessarily limited to installation in such a procedure, and the lower end and the upper end of the support column 4 are connected to the underground frame body 3 and the trunk in the completed state. Therefore, since sufficient support force is naturally obtained, it is not impeded that the support tool of the present invention is constructed by an appropriate procedure different from that of the above-described embodiment as necessary.
For example, after arranging the root pot 2 in the planting hole 6, the horizontal material 3 a is arranged around it to assemble the underground frame body 3, and the lower end portion of the support column 4 is connected to the underground frame body 3. As a result, the support may be assembled at that time (in this case, the support column 4 is not necessarily connected to the underground frame 3 so as to be swingable). Since the completed state is the same as that of the above embodiment, the same support effect can be obtained.

DESCRIPTION OF SYMBOLS 1 Planted tree 2 Root pot 3 Underground frame 3a Horizontal material 4 Prop 5 Cross bar 6 Planting hole

Claims (3)

A support tool for supporting planted trees and preventing their collapse,
It consists of an underground frame that surrounds the root pot of the planted tree and is buried in the surrounding ground, and a plurality of pillars that are erected around the planted tree,
The underground frame is configured by connecting ends of a plurality of horizontal members,
A planted tree support device, wherein a lower end portion of the support column is swingably connected to the horizontal member , and an upper end portion of the support column is configured to support a trunk of the planted tree. . A planting tree support according to claim 1,
The ground frame consists assembled are concatenated to each other the ends of the four said horizontal member of the grid pattern, the lower end of the strut is swingably by connecting fitting to the connecting portion of each other said horizontal member A planted tree support device, characterized in that it is connected to the plant. An installation method for installing the planted tree support according to claim 1 or 2,
Excavating a planting hole of a size that can embed the root pot of the planted tree and embed the underground frame configured by connecting ends of a plurality of horizontal members around the root pot,
The lower end of the column is connected to the horizontal member so as to be swingable in advance, and the underground frame is disposed on the outer peripheral portion in the planting hole, and the column is directed to the outside of the underground frame. Unfold,
In this state, after placing the root pot inside the underground frame body, by standing the pillar inward and connecting the upper end of the pillar to the trunk of the planted tree, the pillar and Temporarily supporting the planted tree with the underground frame,
After that, the planting tree support installation method is characterized in that the planting hole is backfilled and the underground frame and the lower end portion of the support are buried in the ground together with the root pot.

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