JP3045410B2 - Method and apparatus for preventing undergrowth of trees - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

A. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for inhibiting the growth of undergrowth of trees by physical means, and more particularly to a so-called mulching method for covering a ground surface with a cover (mulching material). About.

2. Description of the Related Art Conventionally, a mulching material such as an opaque (black) vinyl sheet or a veneer plate has been laid on the ground surface as a mulching method of this kind. However, when laying a vinyl sheet, if it is stretched over the entire surface of the ground, there will be no penetration of rainwater, which will cause tree death, and if a hole is drilled to avoid this, Undergrowth grows from the hole, failing to achieve the intended purpose.
Further, when laying a veneer board, there is no change in the impermeability of rainwater to a vinyl sheet, and the veneer board itself corrodes in a short period of time and has no durability. Furthermore, gaps between the veneer boards and other structures such as curbs are inevitable, and undergrowth grows from these gaps. Therefore, in the mulching method using these conventional mulching materials, in preventing the growth of the undergrowth, it is difficult to ensure completeness, not only the repair cost is increased, but also the labor is required, and the original purpose of eliminating the labor cannot be achieved. In addition, there is a problem with the landscape.

[0003] In any of these conventional mulching methods, when laying in contact with the curb or the rim structure of the retaining wall, a gap at the border of the rim structure is inevitable. The growth of undergrowth is also a major problem. Furthermore, since both means, such as a vinyl sheet and a veneer board, are laid directly on the ground surface, there is also a concern that they may affect air permeability with trees.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and in the mulching method using a mulching material of this kind, in particular, even when the mulching method is in contact with a curb-like or wall-like structure, the undergrowth is reduced. It is an object of the present invention to provide a method for effectively inhibiting the growth of Aspergillus and a device used for the method.

[0005] b. Configuration of the Invention [Means for Solving the Problems] The present invention employs the following configuration (technical means) to achieve the above object. That is, the first method for preventing the growth of undergrowth of trees of the present invention is as follows:
Between the edge structures facing each other across the vegetation surface area where a tree of a predetermined width grows, a horizontal frame member along the edge structure and a vertical frame member interposed between the horizontal frame members. A mulching sheet material is laid on the supporting frame member. A second method for preventing undergrowth of a tree according to the present invention comprises a horizontal frame member between edge structures facing each other across a vegetation surface area where trees of a predetermined width grow. A support frame member comprising a vertical frame member interposed between the horizontal frame member and the vertical frame member. It is characterized in that a flexible mulching sheet material having at least a light-shielding property is laid on the support frame member so as to be in close contact with a structure.

The undergrowth prevention device for trees according to the present invention is a mulching material stretching device used in the above-mentioned method, wherein the device is provided with a predetermined distance from a horizontal frame member arranged in close contact with an edge structure. A support frame member comprising an extendable vertical frame member interposed between the horizontal frame members while being held, and a flexible mulching sheet material having at least a light shielding property laid on the support frame member. It is characterized by the following.

[0007] In the first method, the support frame member has rigidity as a whole, a mulching material is stretched on the support frame member without slack, and an appropriate gap is provided between the support frame member and the ground surface. And ensure air permeability. In the second method, the horizontal frame member comes into close contact with the edge structure due to the pressing force accompanying the extension of the vertical frame member, and no gap is formed between the horizontal frame member and the edge structure. Furthermore, the support frame member is rigidly installed as a whole, and stretches and holds the mulching sheet material in an expected state. In addition, due to the installation of the support frame member, an appropriate gap is generated between the support frame member and the ground surface, and air permeability is secured.

An embodiment of a method for preventing the growth of undergrowth of trees and an apparatus therefor according to the present invention will be described with reference to the drawings. (First Embodiment) FIGS. 1 to 4 show one embodiment (first embodiment). In this embodiment, an application example is shown in which one is a wall-like body and the other is a curb-like body across a vegetation surface area having a predetermined width.

In FIGS. 1 to 3, W is a wall-like structure, and B is a wall-like structure.
Is a curb-like structure, and vegetation soil E is filled between these structures W and B, and a vegetation surface area where trees T are vegetated is formed. The wall-shaped structure W and the curb-shaped structure B are long along the wall surface Wa of the wall-shaped structure W, and are arranged in parallel with each other.

The mulching material stretching device S of the present embodiment is arranged between the wall-like structure W and the curb-like structure B with a predetermined gap K from the surface of the vegetation soil E. Is done.

The mulching material stretching apparatus S of the present embodiment includes a support frame member 1 directly interposed between two opposing structures W and B, and a mulching member laid on the support frame member 1. And a sheet material 2.

In the present embodiment, the support frame member 1 is composed of two types of curbstone-side horizontal frame members 4 and five wall-side horizontal frame members 5 for curbs and walls. A vertical frame member 6 spanned between the members 4 and 5. FIG. 4 shows the support frame member 1 exploded.

The detailed structure of each member of the support frame member 1 will be described below with reference to FIGS. Curb-side horizontal frame member 4 The curb-side horizontal frame member 4 mainly includes a horizontal frame main body 10 that is a thick rod-shaped body in order to maintain required rigidity. The horizontal frame body 10 is integrally extended.
The engaging recess 12 is formed at the corner between the shelf and the shelf 11. Although the horizontal frame member 4 is preferably used in this embodiment as being made of a hard synthetic resin, it does not prevent the use of other materials. In addition, the shelf 11 can freely protrude from an intermediate position other than the upper edge of the horizontal frame body 10. The vertical frame member 6 extends in the longitudinal direction on the inner side of the horizontal frame body 10.
A dovetail groove 13 is provided vertically to be connected to the antenna.

Wall-side horizontal frame member 5 The wall-side horizontal frame member 5 includes a horizontal frame main body member 15 and a crimping member 16. The horizontal frame body member 15 forms a thick-walled rod,
Similar to the horizontal frame main body 10 of the curb-side horizontal frame member 4, required rigidity is maintained, and a dovetail groove 17 for connecting to the vertical frame member 6 is provided vertically on the inner side surface thereof in the longitudinal direction. The material also conforms to the curb side frame member 4. In addition, a dovetail groove 18 that connects to the crimping member 16 is provided vertically on the outer surface side of the horizontal frame body member 15.

The pressure-bonding member 16 is formed of an air-tight elastic material such as rubber or soft synthetic resin, and includes an air-tight portion 20 at a front portion and a dovetail portion 21 at a rear portion.
The airtight portion 20 has a bowl-shaped cross section, and its concave portion 20a increases flexibility and obtains good adhesion to a wall surface.
However, the concave portion 20a of the hermetic portion 20 is not an essential matter, and may be omitted as long as the close contact with the wall surface can be ensured. The dovetail ridge 21 is engaged with the dovetail groove 18 of the horizontal frame main body member 15. The crimping member 16 has a free length with respect to the length of the horizontal frame main body member 15.

The vertical frame member 6 vertical frame member 6 includes two vertical frame body member 23, the pressing force adjusting member 24 interposed between these vertical frame main body member 23 is composed of, as a whole extension function One or two or more appropriate numbers are interposed between the horizontal frame members 4. More specifically, the vertical frame main body member 23 is formed of a hollow rectangular member having a predetermined rigidity, and a dovetail 25 that engages with the dovetail grooves 13 and 17 of the horizontal frame members 4 and 5 is provided at the closed end. It is protruding. Further, the opening end face portions 26 are arranged to face each other. The vertical frame body member 23 is made of metal or a synthetic resin. On the other hand, the pressing adjuster 24 includes a screw rod 24a and two flange bodies 24b screwed to the screw rod 24a, and the disk-shaped or polygonal-plate-shaped flange body 24b is screwed forward to form the vertical frame main body member 23. It is pressed against the opening end surface 26.

The support frame member 1 is configured in this manner. As shown in FIG. 4, when the pressing adjustment tool 24 of the vertical frame member 6 is removed, the support frame member 1
a and the wall side 1b. In the support frame member 1, the length of the horizontal frame members 4, 5 is appropriately set to one unit length, and three to five vertical frame members 6 are assembled to the horizontal frame members 4, 5. However, this is appropriately determined from the viewpoint of workability and is not specified.

Mulching sheet material 2 Returning to FIGS. 1 to 3, the mulching sheet material 2 is a sheet-like member that functions as a mulching material, and various materials are applied. In this embodiment, one pair is fixed to one of the horizontal frame members 4 and 5 with an adhesive or a nail, and the other end is overlapped and appropriately bonded. Since the mulching sheet material 2 is placed on the support frame member 1, it is laid without sagging. The V-cuts 28 and 29 are made at the overlapping portion of the mulching sheet material 2 corresponding to the tree T, and the tree T is inserted into the space 30.

As the material of the mulching sheet material 2, an appropriate material such as a nonwoven fabric, a net, a cloth, a plywood, a cardboard or the like is used, and one or a combination of two or more of them is used. Further, a non-woven fabric and a net coated on a plate-shaped body made of a special material, for example, an organic material such as bark can be applied. According to this, the darkwood effect and the heat retaining effect are exerted by the lower material, and the upper material prevents the flying seedlings from being attached.

The mulching material stretching apparatus S of the present embodiment having the above-described structure is arranged and used as follows. First, the length of the support frame member 1 having a unit length, that is, the horizontal frame members 4 and 5 are adjusted to the unit length, and the main frame member 23 of the vertical frame member 6 is engaged with , 17 and 25 to separate and prepare the curb-side portion 1a and the wall-side portion 1b. In the planted vegetation surface area, the curb-side portion 1a and the wall-side portion 1b of the support frame member 1 are set on the curb structure B and the wall-like structure W, respectively, while avoiding the tree T. Main body member 2 of vertical frame member 6 facing
3, a pressure adjusting member 24 is interposed between the
The vertical frame member 6 is pushed out by rotating 4b. Thereby, both the horizontal frame members 4 and 5 are pressed against the structures B and W. Thereafter, the mulching sheet material 2 is attached.

As described above, according to the mulching material stretching apparatus S of the present embodiment, the horizontal frame members 4 and 5 are arranged in close contact with the curb-like and wall-like structures B and W so that no gap is formed. The mulching sheet material 2 covers the whole, and completely prevents the growth of the undergrowth. Also, since the mulching sheet material 2 is laid via the support frame member 1, the vegetation soil E
An appropriate space is formed between the ground and the ground surface, the air permeability is good, and the growth of trees is promoted.

FIG. 5 shows an example of construction on an edging retaining wall using the mulching material stretching apparatus S. In the figure, W
Is an edging retaining wall, which is formed by stacking individual greening retaining wall blocks (hereinafter simply referred to as "blocks") B in the horizontal and vertical directions. The block B includes a bottom plate 100, a back plate 102, and a side plate 104, and is formed to have a box shape with a soil filling space therein. The bottom plate 100 keeps the inclined shape and projects to the front. The bottom plate 100 has a water permeable hole 10.
6. A window 108 is opened in the back plate 102. The block B is filled with soil E, trees T are planted on the soil E, and the ground of the retaining wall W and the window 10 of the backboard 102 are formed.
8 through which water is supplied from the ground. In this way, the trees receive hydration from the ground surface and water from the ground.

Thus, the mulching material stretching apparatus S of this embodiment is laid on the tree T planted on the soil E of the block B. That is, the curb-side horizontal frame member 4 of the support frame member 1 of the mulching material stretching apparatus S is engaged with the leading end block of the bottom plate 100 of the block B by the engagement recess 12, and the wall-side horizontal frame member 5 The crimping member 16 is pressed against the lower surface of the bottom plate 100 of the block B to close these gaps and prevent undergrowth from growing from this portion. The mulching sheet material 2 of the mulching material stretching device S blocks the passage of sunlight, has a predetermined water permeability, and allows the permeation of surface water, whereby the growth of undergrowth seeds in the soil E is achieved. And promote the growth of tree T. When a plywood is used for the mulching sheet material 2, the plywood itself does not have water permeability, but spacers are arranged in the overlapped portions of the upper and lower plywood sheets to provide required air permeability by providing a gap.

(Other Embodiment) FIGS. 6 to 8 show another embodiment of the present invention. In these drawings, the same reference numerals are given to members equivalent to those in the previous embodiment.

The second embodiment shown in FIG. 6 is provided between the curb-like structure B and the wall-like structure W similarly to the first embodiment, and is mulching. 1A shows a support frame member 1A of a material stretching apparatus. The curb-side horizontal frame portion 4A of the support frame member 1A and the main body portions 10 and 15 of the wall-side horizontal frame member 5A are
Both have a thin flat plate shape and are elongated in the vertical direction, and also serve as a main body of the vertical frame member. Therefore, the vertical frame member 6A of the present embodiment has only a pressing adjustment function, and has a U-shaped engagement portion 32 at both ends, a screw cylinder portion 33 fixed to the engagement portion 32, and Screw rod 34 screwed into screw cylinder 33
In the screw rod 34, the center flange 34
The screws having opposite phases are cut at the boundary of a.
The screw cylinder portion 33 is pulled and separated by the rotation of 4. In this embodiment, after the engaging portion 32 of the vertical frame member 6A is engaged with the main body portions 10 and 15 of the horizontal frame members 4A and 5A, the flange body 34a of the screw rod 34 is rotated in the extension direction, and Frame member 4
A and 5A are pressed against both structures B and W in close contact.

FIG. 7 shows a third embodiment of the present invention, in which the supporting frame member 1B is composed of two curb-side horizontal frame members 4B having the same shape, and these horizontal frame members 4B. And a vertical frame member 6B spanned therebetween. Horizontal frame member 4B
Has the same shape as the horizontal frame member 4A of the second embodiment,
The main body 10 has a hole 36 for engaging with the vertical frame member 6B. The vertical frame member 6 </ b> B is in a turnbuckle mode, and rotates a rotating portion 37 of the vertical frame member 6 </ b> B to push out a screw rod 38 that engages with the engaging hole 36. The vertical frame member 6C has elasticity as a whole, and its leg 39 is connected to the engagement hole 3 of the horizontal frame member 4B.
6 is engaged.

FIG. 8 (fourth embodiment) is applied between wall structures W, W which are opposed to each other, and the support frame member 1C has two identically shaped walls. It comprises a side horizontal frame member 5B and a vertical frame member 6D bridged between these horizontal frame members 5B. The wall-side horizontal frame member 5B has substantially the same shape as the horizontal frame member 5A of the second embodiment described above, and
A groove 41 is provided vertically on the side end face of
Are drilled at required intervals. The vertical frame member 6D
It has substantially the same configuration as the pressure adjusting tool 24 of the first embodiment described above, and includes a long screw rod 43 and two flanges 42 screwed to the screw portions of the screw rod 43.

The mutual change of the vertical frame members 6A, 6B, 6D belongs to a design matter which can be easily implemented. This embodiment is not limited to the above embodiment, and various design changes can be made within the scope of the basic technical concept of the present invention. For example, in the first embodiment, the pressing adjustment tool 24 is
A spring member is disposed between the rod members 24a by the urging force of the spring member.
Can be adopted in which the flange body 24b loosely fitted on the vertical frame main body member 23 is pressed.

C. Effects of the Invention According to the present invention, the mulching sheet material is stretched on the support frame member provided between the opposed curb-like and wall-like structures, so that the mulching sheet material is stretched in an expected state, and Effectively prevent the growth of In addition, the horizontal frame member is disposed in close contact with the curb-shaped and wall-shaped structures and does not form a gap, and the mulching sheet material covers the whole,
The growth of undergrowth at the site is completely inhibited. Furthermore, since the mulching sheet material is laid via the support frame member,
An appropriate space is formed between the ground surface of the vegetation soil and the air permeability is improved, and the growth of trees is promoted.

[Brief description of the drawings]

FIG. 1 is an overall plan view of an embodiment of an apparatus used for a method for preventing undergrowth of a tree according to the present invention.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is an overall perspective view of the apparatus of the present embodiment.

FIG. 4 is a perspective view of a support frame member of the apparatus of the present embodiment.

FIG. 5 is a diagram showing an application example of the apparatus of the present embodiment to a greening retaining wall.

FIG. 6 is a perspective view showing a support frame member according to another embodiment (second embodiment) of the present invention.

FIG. 7 is a perspective view showing a support frame member according to still another embodiment (third embodiment) of the present invention.

FIG. 8 is a perspective view showing a support frame member according to still another embodiment (fourth embodiment) of the present invention.

[Explanation of symbols]

B: curb-like structure, W: wall-like structure, S: mulching material stretching device, 1: support frame member, 2: mulching sheet material,
4, 5 ... horizontal frame member, 6 ... vertical frame member

Claims (4)

(57) [Claims] 1. A horizontal frame member which is interposed between edge structures facing each other across a vegetation area where a tree of a predetermined width grows, and is interposed between the horizontal frame members along the edge structure. A method for preventing undergrowth of undergrowth of a tree, comprising disposing a support frame member composed of a vertical frame member and laying a mulching sheet material on the support frame member. 2. A horizontal frame member extending along the edge structure between the edge structures facing each other across a vegetation area where a tree of a predetermined width grows. A support frame member comprising a vertical frame member is disposed, and the horizontal frame member is pressed against the edge structure side by the vertical frame member so that the horizontal frame member is in close contact with the edge structure. Laying mulching sheet material on
A method for preventing the growth of undergrowth of trees, characterized in that: 3. The undergrowth of a tree according to claim 1 or 2, wherein the mulching sheet material has one of light-shielding properties, air-permeability, and water-permeability or a combination thereof. How to prevent growth. 4. An apparatus used in a method for preventing the growth of undergrowth of a tree, which is arranged between edge structures facing each other across a vegetation area where a tree of a predetermined width grows, A support frame member including a horizontal frame member arranged in close contact with the edge structure, and an extensible vertical frame member interposed between the horizontal frame members at a predetermined interval; And a mulching sheet material laid on the material.