JP2016032371A - Weed-proof member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a weed-proof member which can be mounted in a comfortable posture.SOLUTION: A weed-proof member 1 is mounted at roof of a columnar object 11 arranged at a place where plants can grow, and covers the ground surface around the roof of the columnar object 11 to prevent the plants from growing in that area. The weed-proof member 1 is formed of a plastic corrugated fiberboard 2 in a flat plane shape having a synthetic resin core between at least two synthetic resin base plates; has a fitting hole 3 in a shape approximately same as the root of the columnar object 11 opened in the plastic corrugated fiberboard 2; and a cutting line 5 extending from the fitting hole 3 to the edge 4 of the weed-proof member 1. When a force is added on both sides across the cutting line 5 in a direction opposite to a direction orthogonal to a plane, gaps are created, so that when the columnar member 1 is inserted in the gaps to reach the fitting hole 3, it cannot be removed with the cutting line 5 closed by self-elasticity. Therefore, the weed-proof member 1 can be easily mounted in a comfortable posture.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a weedproof member for preventing grass from growing around the base of a pillar.

In general, a brush cutter 100 as shown in FIG. 5 is used for weeding work such as fields and roadsides. The brush cutter 100 includes a main shaft 102 having an operation handle 101, a rotary blade 103 attached to the tip of the main shaft 102, and a driving device 104 for driving the rotary blade installed at the rear end of the main shaft 102.
However, there are cases where electric fences are provided in the field to prevent beast damage caused by wild boars, etc. If the rotary blade 103 of the brush cutter 100 is accidentally brought into contact with the posts of such electric fences, There is a risk of damaging the fence posts or damaging the rotary blade 103 itself. Therefore, the weeding work around the column must be done manually even if it is troublesome. Such a problem can also occur around a guardrail post beside a road or around a utility pole.

With respect to the above problems, for example, Patent Document 1 discloses a weedproof member that inhibits the growth of weeds in the portion of the columnar member provided at a place where weeds can grow by covering the ground surface around the base. It is described in.
This conventional weedproof member is a cover to be attached to a utility pole, and is cylindrical and has a utility pole covering portion that can be opened at least one place along the axial direction and a lower end portion of the utility pole covering portion And a binding band (fastening means) for fastening the electric pole covering portion.

Japanese Patent No. 2963089

  Since the conventional weedproof member is attached to a utility pole and fastened with a binding band, workability is poor. In addition, the binding band when attached to the utility pole is almost at the height of the ground surface, and it is necessary to perform the tightening work by dropping the waist or bending forward, so the burden on the waist and knees is heavy. was there.

  This invention is made | formed in view of the above, The objective is to provide the weed prevention member which can be easily mounted | worn with an easy attitude | position.

In order to achieve the above object, as described in claim 1, the present invention is attached to a root portion of a pillar provided in a place where a plant can grow and covers the ground surface around the root of the pillar. A herbicidal member adapted to inhibit the growth of plants in that part,
It is formed of flat plastic corrugated cardboard formed by laminating or integrally molding a synthetic resin core between at least two synthetic resin substrates,
Provided is a weedproof member in which a mounting hole that substantially matches the base shape of the columnar object is provided in the plastic corrugated board, and a cutting line that reaches the outer edge of the mounting hole is provided.

  According to a second aspect of the present invention, there is provided the grass protection member according to the first aspect, wherein an end surface of the plastic corrugated cardboard is exposed to the outer edge.

Further, as described in claim 3, the core of the plastic corrugated cardboard is formed by a large number of ribs arranged in parallel at intervals in a certain direction,
On the other hand, the cutting line provides the weedproof member according to claim 1 or 2, wherein the cutting line is provided substantially parallel to the rib of the core of the plastic corrugated board.

By covering the ground surface around the base of the columnar material, the herbicidal member of the present invention can inhibit the growth of the plant in that portion, that is, preventing the plant from growing around the base of the columnar material. it can. This eliminates the need for weeding around the base of the columnar object, eliminating the need to bring the rotary blade of the brush cutter closer to the columnar object, reducing the number of accidents that damage the columnar object with the rotary blade or the rotary blade itself. Can be made.
Moreover, since the weedproof member of the present invention creates a gap in the cutting line by applying a force in a direction opposite to the direction perpendicular to the surface on both sides across the cutting line, a columnar object is put in the gap. If it reaches the hole, the cutting line is automatically closed due to the elasticity of the plastic cardboard and cannot be removed. Therefore, the weedproof member of the present invention can be easily mounted in an easy and comfortable posture.

  Further, if the end face of the plastic cardboard is exposed to the outer edge as in the second aspect, it becomes possible to stabilize by inserting a fixing metal fitting into the hollow portion of the plastic cardboard.

  Further, if the cutting line of the weedproof member is provided in a direction substantially parallel to the rib of the core as in claim 3, the substrate cut in a cantilever shape faces the cut line, so that the cutting line When the column is opened and the columnar object is passed, the columnar object and the bent substrate rub against each other and become slippery, so that the columnar object can be passed relatively smoothly.

It is the perspective view which made a part the cross section. It is the top view which made a part the cross section. (A) is a front view including a partially enlarged view, (b) is a front view showing a state where a cutting line is opened and a gap is opened. It is a perspective view which shows a use condition. It is a perspective view which shows a brush cutter.

Embodiments of the present invention will be described below with reference to the drawings.
As shown in FIG. 4, the weedproof member 1 according to the present invention is used by being mounted on a column 11 of an electric fence 10 surrounding the field. Therefore, the support | pillar 11 of the electric fence 10 is corresponded to the columnar thing provided in the place where a plant (weed) can grow.

  The weedproof member 1 is a black plastic corrugated board 2 processed into a circular shape as shown in the figure, and has a circular mounting hole 3 at the center and a radial cutting line 5 extending from the mounting hole 3 to the outer edge 4. It has been. The mounting hole 3 has substantially the same diameter as the column 11 of the electric fence 10 that is a columnar object.

  The plastic corrugated cardboard 2 is formed by bonding a synthetic resin core 7 between two substrates (also called “liners”) 6 and 6 made of synthetic resin (for example, “polypropylene”), or integrally molded. This is a hollow structure. Further, the core 7 of the plastic corrugated cardboard 2 is formed by a large number of ribs 7a, 7a,. The outer edge 4 of the weed prevention member 1 is such that the end face of the plastic cardboard 2, that is, the end faces of the ribs 7 a, 7 a.

  The cutting line 5 is a radial cut reaching the outer edge 4 from the mounting hole 3 as described above, and is provided substantially in parallel with the ribs 7a, 7a,. Arc portions 1r and 1r are formed at the corners where the cutting line 5 and the outer edge 4 intersect, and the arcs 1r and 1r can safely form a gap 8 to be described later on the cutting line 5. Yes.

Since the weedproof member 1 of the present invention is configured as described above, as shown in FIG. 3B, the left side of the cutting line 5 is in the upward direction perpendicular to the surface direction, and the right side is also in the downward direction. Thus, a gap 8 is formed in the cutting line 5 by applying forces in opposite directions. Even when such a force is applied, the cutting hole 5 has a mounting hole 3 at which the force is distributed, so that the grass protection member 1 is not liable to be broken unless an excessively large force is applied.
Thus, if the support 11 of the electric fence 10 is fitted into the gap 8 of the grass prevention member 1 and the support 11 is relatively pushed into the back, the clearance 8 is expanded by the progress of the support 11, and finally. The support 11 is fitted into the mounting hole 3. Then, the gap 8 of the cutting line 5 is automatically closed by the elasticity of the plastic corrugated cardboard 2, so that the weedproof member 1 does not come off the support 11. In addition, when the support 11 is passed through the gap 8 of the cutting line 5, friction is generated between the plastic corrugated board 2 and the support 11, but the cutting line 5 of the weedproof member 1 is connected to the rib 7a of the core 7 as in the embodiment. 3A, the cut substrate 6 can be bent in a cantilevered manner, as shown by an imaginary line in the enlarged view of FIG. In other words, the substrate 6 and the column 11 rub against each other, in other words, the hard edge and the column 11 do not rub against each other, and the column 11 can be slipped and can pass through the column 11 relatively smoothly.

  Although the installation of the weedproof member 1 to the column 11 of the electric fence 10 is completed as described above, the plastic corrugated cardboard 2 exposed to the outer edge of the weedproof member 1 is necessary when the weedproof member 1 needs to be securely fixed. The horizontal portion 9a of the inverted L-shaped stopper 9 shown in the imaginary line in FIG. 1 is inserted between the ribs 7a and 7a, and the vertical portion 9b of the stopper 9 is inserted into the ground.

As mentioned above, although embodiment of this invention was described, of course, this invention is not limited to the said embodiment. For example, in the embodiment, the pillar 11 of the electric fence 10 is illustrated as a columnar object, but other than that, a plant such as a utility pole or a wire branch of a utility pole, a streetlight pillar, a sign pillar, a curve mirror pillar, a guardrail pillar It can be applied to any columnar object provided in a place where the can grow.
In addition, the plastic corrugated board 2 of the embodiment is shown in which the core 7 is integrally formed between the substrates 6 and 6, but the core 7 may be bonded between the substrates 6 and 6.
Further, the core 7 of the plastic corrugated board 2 may be a corrugated core such as a paper cardboard or a circular core such as a well-known bubble sheet, in addition to a large number of ribs 7a, 7a.
Moreover, although the shape of the weed prevention member 1 was circular in embodiment, it may be a hexagon, an octagon, another polygon, and also an ellipse other than that.
The plastic corrugated board 2 may have a multilayer structure in which, for example, three substrates 6 are provided and the core 7 is provided in two stages.

DESCRIPTION OF SYMBOLS 1 ... Herbicidal member 2 ... Plastic corrugated board 3 ... Mounting hole 4 ... Outer edge 5 ... Cutting line 6,6 ... Substrate 7 ... Core 7a, 7a ... Rib 11 ... Post (columnar thing)

Claims (3)

A herbicidal member that is attached to the root part of a pillar provided in a place where a plant can grow, and that inhibits the growth of the plant in that part by covering the ground surface around the root of the pillar,
It is formed of flat plastic corrugated cardboard formed by laminating or integrally molding a synthetic resin core between at least two synthetic resin substrates,
A weedproof member characterized in that a mounting hole that substantially matches the base shape of the columnar object is provided in the plastic cardboard, and a cutting line that reaches the outer edge of the mounting hole from the mounting hole is provided.   The grass protection member according to claim 1, wherein an end face of the plastic corrugated cardboard is exposed to the outer edge. The core of the plastic corrugated cardboard is formed of a large number of ribs arranged in parallel at regular intervals.
On the other hand, the cutting line is provided substantially parallel to the core rib of the plastic corrugated cardboard.

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