JPH0449971B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a method and device for supporting and constructing trees, and more specifically, for planting trees while supporting them in parks, pavements, exhibition halls, etc. The present invention relates to a support construction method and device.

[Conventional technology]

Conventionally known techniques for tree support construction methods and devices include those described in JP-A-62-195225 and JP-A-63-87919.

A known technique described in Japanese Patent Application Laid-Open No. 195225/1982 is shown in FIGS. 6 and 7. In the drawing, 1 is a planting hole previously formed in the ground, 2 is a tree, and the root portion 3 and root ball 4 of this tree 2 are housed in the planting hole 1. Reference numeral 5 denotes a net-like belt made of hemp wrapped around the root 3 of the tree 2, and 6 denotes a plurality of supports externally fitted around the root 3 of the tree 2 through the belt 5. Reference numeral 6 has a rubber hose 8 fitted onto the base wire 7, and pulleys 9 rotatably attached to the tip of the wire 7 at equidistant positions on the circumference. Reference numeral 10 denotes a plurality of fixing members, such as anchors, driven into the implantation hole 1, and a pulley 11 is rotatably attached to the upper end of the anchor 10. 12 is a fixed wire; this fixed wire 12
is pulled around the pulleys 9 and 11 in turn while being pulled along the outer peripheral surface of the root ball 4 of the tree 2, and secured at both ends with clips.

When planting the tree 2 in the planting hole 1, first, the root part 3 and root ball 4 of the tree 2 are stored in the planting hole 1 into which a plurality of anchors 10 have been driven, and then A net-like belt 5 made of hemp is attached to the base 3.
After wrapping the band 5, the support 6 is placed on the outside of the band 5.
to be fitted externally. At this time, the pulleys 9 of the support body 6 are held at equidistant positions on the circumference. After that, the fixed wire 12
The pulleys 9, 11 one after another, its both ends are fixed with clips, and the root ball 4 is pressed and fixed from the upper surface side by the tightening force of the fixing wire 12. Once the root ball 4 of the tree 2 is fixed in the planting hole 1, soil or the like is poured into the planting hole 1 to bury the root portion 3 and root ball 4 of the tree 2 underground.

[Problem to be solved by the invention]

According to the conventional known technology, the fixed wire 12 is long and arranged in a meandering manner, and the pulleys 9 and 11 are floating and their postures are not constant, so even if the fixed wire 12 is tightened, The pulleys 7 and 8 do not rotate smoothly, and the tightening force at each part of the fixed wire 12 becomes uneven. Therefore, even pressure is not applied to the upper surface of the root ball 4, and since the root ball 4 is only fixed by pressing from the upper surface side, the support of the tree 2 becomes uncertain, and strong cross winds, etc. If an external force is applied, there is a risk that the tree 2 will fall due to the external force. Further, since the structure is such that the support body 6 is fitted onto the root portion 3 of the tree 2, there is a problem that the tree may be damaged. The known technique described in Japanese Patent Application Laid-Open No. 63-87919 also had a similar problem.

[Means to solve the problem]

The present invention has been proposed in view of the above-mentioned problems, and the first invention is to arrange a bedding material approximately at the center of the bottom surface of the root ball of a tree, and to place a bedding material at a point symmetrical position on an orthogonal line of the bedding material. The fixed ends of each pair of fixed wires are connected together, and the branch wire section extending in two branches from the fixed end of each pair of fixed wires is connected to the roots so as to surround the base of the tree in a substantially rectangular shape. Each pair of fixed wires is placed around the outer circumferential surface of the pot in opposite directions, and in this state, the root part and root ball of the tree are stored in the planting hole previously formed in the ground, and each pair of fixed wires is The free end of the branch wire section is connected via a fastener to a fixing member that has been driven into the implantation hole in advance, and the branch wire section of each pair of fixed wires is pulled by the tightening force of the fastener. By doing so, the root ball is held and fixed in the planting hole, and then soil, etc. is poured into the planting hole to bury the root part of the tree and the root ball underground. .

The second invention provides a bedding material disposed approximately at the center of the bottom surface of the root ball of a tree, and a fixed end connected to point-symmetrical positions on an orthogonal line of the bedding material, and branched into two strips from the fixed end. a plurality of pairs of fixing wires each having a branched wire portion with a free end that extends as shown in FIG. The free ends of the wire portions are detachably fastened, and the fasteners are connected to the fixing member. Along the outer circumferential surface of the root ball so as to surround it,
and are arranged so as to rotate in opposite directions, and
The free end of the branch wire section is connected to a fixing member via a fastener, and the fixing wire is pulled by the tightening force of the fastener to hold and fix the root ball. be.

[Effect]

According to the present invention, the pairs of fixed wires arranged in orthogonal directions are connected via the bedding material at the bottom of the root ball, and are each rotated in opposite directions to be pulled in the tightening direction. The root ball of the tree is held and fixed by each pair of fixing wires, and the tree is reliably and firmly supported.

〔Example〕

Embodiments of the present invention will be described below with reference to FIGS. 1 to 5. In the drawing, 21 is a planting hole previously formed in the ground, 22 is a tree, and the root part 23 and root ball 2 of this tree 22 are
4 is housed in the implant hole 21. Reference numeral 25 denotes a bedding material placed at the center of the bottom surface 26 of the root ball 24 of the tree 22, and this bedding material 25, as shown in FIG.
Mounting plate 27 and two mounting wires 28a, 2
8b. Mounting plate 27
In this case, two U-shaped locking rods 32 having threaded portions 31 formed at both ends are passed through a plate main body 30 having a groove portion 29 at a predetermined interval, and a fixing nut 33 is attached to the threaded portion 31. The mounting wires 28a and 28b have both ends folded back to form mounting ring portions 34a and 34b.
Then, one mounting wire 28a is arranged in the groove 29 of the mounting plate 27, and the other mounting wire 28b is inserted through the locking rod 32 of the mounting plate 27, so that the mounting wires 28a and 28b are arranged orthogonally, The respective mounting ring portions 34a, 34b of each mounting wire 28a, 28b are arranged in a cylindrical equidistant position, that is,
It is held at a point symmetrical position on the orthogonal line. 35a,
35a, 35b, 35b are the root ball 2 of the tree 22
Each of the fixed wires 35a to 35b is a fixed wire for fixing the mounting wire 2 of the bedding material 25.
8a, 28b, and are connected to the mounting wires 28a, 28b, and from the U-shaped fixed ends 36a, 36b attached to the mounting wires 28a, 28b. are the free ends of the branch wire parts 37a, 37a, 37b,
37b is branched into two sections. Each branch wire portion 37a of the fixed wires 35a to 35b
The rods 37b are arranged so as to surround the root portion 23 of the tree 22 in a substantially rectangular strip along the outer peripheral surface of the root ball 24 in opposite directions (tightening direction).
Reference numeral 38 denotes a protective tube made of rubber that is fitted into each branch wire portion 37a to 37b of the fixed wires 35a to 35b, and this protective tube 38 is arranged so as to surround the root portion 23 of the tree 22 in a substantially rectangular shape. There is. Reference numeral 39 denotes a plurality of fixing members, such as anchors, which are driven into the planting hole 21 in advance. will be established. 40 is a fastener, for example, a turnbuckle, and this turnbuckle 40, as shown in FIG. A fixed screw rod 44 and a U that is loosely fitted into the screw rod 44 and are formed on the outer circumferential surface of the cylinder body 45.
A mounting tube 47 to which both ends of a letter-shaped connecting rod 46 are attached and fixed is screwed to the threaded portion 41 of the screw rod 44, and is tightened by pressing the mounting tube 47 through an annular pressing plate 48. The two lower end crotches 42 of the threaded rod 44 are removably attached to the upper end of the anchor 39 via a pivot 43, and the branch wire parts 37a to 37 of each of the fixed wires 35a to 35b are provided with a nut 49. Each free end 50a, 50 of 37b
a, 50b, 50b are folded back and attached to the connecting rod 46 of the mounting tube 47 using a stopper 51 in a detachable manner.
Reference numeral 52 denotes a plurality of rod-shaped protection pads made of synthetic resin that are disposed at the upper and lower corners of the root ball 24 of the tree 22, respectively.
4 and the fixed wires 35a to 35b.

Next, the procedure for planting a tree in the above-mentioned planting hole will be explained.

A bedding material 25 is disposed approximately at the center of the bottom surface 26 of the root ball 23 of the tree 22, and the attachment rings 34a to 34b are held at point-symmetrical positions on the orthogonal line of the bedding material 25. A branch wire section in which pairs of fixed wires 35a to 35b are inserted through the sections 34a to 34b, and branched into two strips from the folded U-shaped fixed ends 36a and 36b of each fixed wire 35a to 35b. 37a-37b, tree 22
They are disposed so as to surround the root portion 23 of the roots 23 in a substantially rectangular shape, so as to extend around the outer peripheral surface of the root ball 24 in opposite directions. At this time, protective pads 52 are provided at the upper and lower corners of the root ball 24, respectively, and the protective pads 52 are connected to the root ball 24 and the fixed wires 35a to 35b.
be interposed between. Next, the root portion 23 and root ball 24 of the tree 22 are fixed in advance using four anchors 39.
The branch wire portions 37 of each of the fixed wires 35a to 35b are inserted into the implantation holes 21 that have been driven.
The free ends 50a to 50b of a to 37b are respectively inserted into the connecting rods 46 of the mounting tube 47 of the turnbuckle 40, and are folded back and fixed by the stoppers 51.
2 is removably attached to the upper end of the anchor 39 using the pivot 43, and the fixed wires 35a to 35
The branch wire portions 37a to 37b of b are connected to the anchor 39. After that, tighten the tightening nut 49 and press the mounting tube 47 with the pressing plate 48,
The root ball 24 of the tree 22 is fixed by pulling the respective branch wire parts 37a to 37b disposed in the orthogonal direction of each of the fixing wires 35a to 35b in the tightening direction. Once the root ball 24 is fixed, soil or the like is poured into the planting hole 21 to bury the root portion 23 of the tree 22 and the root ball 24 underground. In this way, the tree 22
When the root ball 24 is fixed, the root ball 24 is fixed by the pair of fixing wires 35a to 35b arranged in orthogonal directions.
Since the tree 22 is held in the planting hole 21 and fixed in the planting hole 21, the tree 22 is reliably and firmly supported and will not fall even if external force is applied from the side.

In the above embodiment, the turbuckle 40 is provided along the outer surface of the root ball 24 of the tree 22, but the present invention is not limited thereto. It may also be provided. In this case, the turnbuckle 40 and the anchor 39 may be connected by a connecting wire or the like. Generally, the root portion 23 and root ball 24 of the tree 22 are buried underground, water is injected into the buried portion to harden the buried portion, and then the buried portion is dug up again and tightened using the turnbuckle 40. When the turnbuckle 40 is provided along the upper surface of the root ball 24, it is easy to dig up the root ball, and retightening using the turnbuckle 40 can be performed simply and easily. Furthermore, although the protection pad 52 is made of synthetic resin, other materials such as logs may also be used.

〔Effect of the invention〕

According to the present invention, a pair of fixing wires arranged in orthogonal directions are connected via a bedding material at the bottom of the root ball of a tree, and are pulled in the tightening direction by making each wire go around in opposite directions. , the root ball of the tree is held and fixed by each pair of fixing wires,
Trees are supported reliably and firmly. Therefore, even if an external force such as a strong crosswind is applied, the tree will not fall down due to the external force. Moreover, since the structure does not support the root part of the tree, the root part will not be damaged. Furthermore, the structure is simple, the construction is simple and easy, and the cost is low.

[Brief explanation of drawings]

FIG. 1 is a partially sectional front view showing an embodiment of the present invention, FIG. 2 is a partially sectional plan view, and FIG. 3 is a bottom view.
Figure 4 is a perspective view of the mounting plate that constitutes the bedding material;
FIG. 5 is a perspective view of the anchor. FIG. 6 is a partially sectional schematic perspective view showing a conventional tree support construction method and apparatus, and FIG. 7 is a partially sectional plan view. 21... Planting hole, 22... Tree, 23... Root part, 24... Root ball, 25... Bedding material, 35a-35
b...Fixed wire, 36a-36b...Fixed end,
37a-37b...branch wire portion, 39...fixing member, 40...fastener, 50aa-50b...free end.

Claims (1)

[Claims] 1. A bedding material is placed approximately in the center of the bottom of the root ball of the tree,
At the same time, the fixed ends of each pair of fixed wires are connected to point-symmetrical positions on orthogonal lines of this bedding material, and the branch wire parts that branch into two strips from the fixed end of each pair of fixed wires are connected to the tree. The roots of the tree are placed around the outer circumferential surface of the root ball in opposite directions so as to surround the roots in a substantially rectangular shape. After storing the root ball, the free ends of the branched wire portions of each pair of fixed wires are connected to the fixing member previously driven into the planting hole via a fastener, and the fasteners are tightened. By pulling the branch wire portion of each pair of fixing wires with force, the root ball is held and fixed in the planting hole, and then,
A method for supporting a tree, characterized in that soil or the like is poured into the planting hole to bury the base and root ball of the tree underground. 2. The bedding material placed approximately at the center of the bottom of the root ball of the tree and the fixed end are connected to point-symmetrical positions on the orthogonal line of the bedding material, and the tips branching into two strips from the fixed end are connected. A plurality of pairs of fixing wires each having a branched wire portion at a free end, a plurality of fixing members driven into a planting hole in which the root portion and root ball of the tree are housed, and a free end of the branched wire portion of the fixed wire. is removably fixed and a fastener connected to the fixing member, and the branch wire portion of each pair of fixing wires is arranged so as to surround the base of the tree in a substantially rectangular shape; Along the outer circumferential surface of the root ball, and
The free ends of the branched wire parts are connected to a fixing member via a fastener, and the fixing wire is pulled by the tightening force of the fastener. A tree support construction device characterized by holding and fixing a pot.