JP3625968B2 - Protective net for orchards - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention comprises a combination of a fence net that surrounds the perimeter of a protected area such as an orchard, a tea garden, and a flower cultivation field, and a ceiling net that can be covered on the open top surface for bird protection, insect protection, and the like. The present invention relates to a protective net for orchards to be used.
[0002]
[Prior art]
The above-mentioned conventional protective net covers the gap formed between the upper end of the enclosure and the ceiling net by suspending the periphery of the ceiling net, which is made somewhat larger than the area of the protected area, to the outside of the enclosure. In order to prevent pests from entering through this gap.
[0003]
[Problems to be solved by the invention]
However, if the above gap is simply covered with the hanging margin of the ceiling net, pests such as moths and stink bugs that have climbed along the fence can reach the gap at the top of the fence as it is. Therefore, the effect of preventing entry into the protected area was hardly obtained.
[0004]
Therefore, an object of the present invention is to provide an improved orchard orchard for preventing or preventing pests from invading through a gap formed at a position where the upper end of the enclosure net contacts the ceiling net. .
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the protection net for orchards and the like according to the present invention is:
In a combination of a fence net surrounding a protected area such as an orchard and a ceiling net covering the open top surface of the fence net,
An insect return piece 3A having a predetermined height is connected to the upper end of the enclosure net 3, and the insect return piece 3A is folded down to the outside of the protection area. It is formed.
A string-like body 4 having a predetermined thickness, which is useful for forming the insect return gap a, is fixed along the inside of the folding portion of the enclosure 3.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment in which the present invention is applied to an orchard protection net will be described with reference to the drawings.
As shown in FIG. 3, main struts 21 are erected obliquely outward at predetermined intervals around the orchard site as the protection area A, and the main struts 21 are arranged in the protection area A. The intermediate struts 22 are erected in a grid-like arrangement at intervals corresponding to the intervals.
Reference numeral 23 denotes a fruit tree cultivation shelf, which is composed of a group of wires stretched around in a grid-like arrangement at a position near the upper side of each main support column 21 and intermediate support column 22.
[0007]
A net receiving shelf 2 for receiving and supporting the ceiling net 1 covering the upper surface of the protection area A is stretched between the top ends of the main struts 21 and the intermediate struts 22 in the same manner as the cultivation shelf 23 (FIG. 1).
[0008]
Between each main support | pillar 21, the enclosure net | network 3 surrounding the protection area A is stretched around.
The height of the enclosure 3 is made higher than the height of the intermediate support 22 by a predetermined dimension.
Then, as shown in FIG. 2, the extra height (for example, around 25 cm) is folded to the outside of the enclosure net 3 to form an insect return piece 3A, and the insect return piece 3A and the enclosure net 3 Insect return gaps a are formed between them.
[0009]
This insect return piece 3A plays a role of preventing a pest climbing along the enclosure net 3 from entering the protected area A through the gap between the upper end of the enclosure net 3 and the ceiling net 1. .
A reinforcement rope (drawn string-like body) 4 is fixed to the folded portion of the surrounding net 3 along the crease.
This rope 4 is also useful for forming an insect return piece gap a having a desired width between the insect return piece 3A and the surrounding net 3.
[0010]
The ceiling net 1 has a size such that its four sides slightly protrude outside the net receiving shelf 2 so that the protruding portion hangs down outside the enclosure 3.
As shown in FIG. 1, the hanging portion is provided with a cut 1a at each portion where it interferes with the main support column 21, and fasteners 5 are attached to both edges of the cut 1a. It can be opened and closed freely.
[0011]
Depending on the size of the protection area A, the ceiling net 1 may be one piece or divided into two pieces so as to cover each half of the protection area A, and the ceiling net 1 moves toward and away from each other. It may be opened and closed.
In the case of dividing into two sheets, the butted edges are connected to each other so as to be freely engaged and disengaged by a fastener or a locking fitting (not shown).
[0012]
Between each pair of main struts 21 and 21 facing each other across the protection area A, the drawstring 6 that opens and closes the ceiling net 1 is stretched in a state of being inserted through a loop 24 provided at the top end of each main strut 21. Has been established.
The length of the drawstring 6 is considerably longer than the distance between the opposing main struts 21 and 21, and both side portions thereof are suspended from the ground.
When the ceiling net 1 is relatively small and light, the through ring 24 is not necessarily required.
[0013]
Further, as shown in FIG. 1, a string threading ring 7 through which the pull string 6 is inserted is attached to the ceiling net 1 in a dotted manner at a plurality of positions with a predetermined interval directly below each pull string 6. .
As shown on the right side of FIG. 1, an intermediate portion of each drawstring 6 inserted through each stringing ring 7 is fixed to the opening / closing start end b of the ceiling net 1. Or it is good also considering the left end side of the ceiling net | network 1 as the opening-and-closing start end b.
[0014]
Although not shown in the figure, the ceiling net 1 may be provided with a reinforcing string or the like for reinforcing the attachment position of the stringing ring 7 disposed at a position immediately below each drawstring 6.
When the ceiling net 1 is divided into two pieces, two sets of drawstrings 6 are required for opening and closing each ceiling net 1 individually.
[0015]
Next, how to use the protective net will be explained.
The ceiling net 1 is extended on the net rack 2 for the purpose of protecting against pests and birds, or for the purpose of sunshading, at least during the period from fruit fruiting to maturity.
However, if a typhoon strikes during this period, if the ceiling net 1 with fine mesh and high ventilation resistance is not removed from the net shelf 2, it will be blown off or damaged by the wind and suffers great damage. It will be.
[0016]
However, in reality, this removal is not easy. Therefore, in this apparatus, the ceiling mesh 1 that is placed on the mesh receiving shelf 2 and can be opened and closed in the horizontal direction in the form of a curtain is brought close to the edge of the protection area A as shown in FIG.
[0017]
In order to do this, first, among the four sides of the ceiling mesh 1, the fasteners 5 provided at the portions hanging from the three sides except the side on the side where the ceiling mesh 1 is drawn are opened, and the main struts are opened. 21 does not disturb the opening and closing of the ceiling net 1.
Further, when the two ceiling nets 1 are combined, the engagement of the connecting fastener and the connecting metal fitting is also released.
[0018]
Thereafter, when the left end side of the drawstring 6 hanging from the left and right ends of the protection area A is pulled as indicated by the solid line in FIG. 3, the opening / closing start end b is connected to the drawstring 6. 1 can pull the entire ceiling net 1 to the left end portion of the protection area A in the same manner as when the opening / closing start end of the curtain in the room is pulled and opened.
The hand-drawn ceiling net 1 is tightly bound to the main column 21 and the net rack 2 using a fixing string (not shown) and firmly fixed.
[0019]
Plural strips 6 arranged in parallel at predetermined intervals may be pulled by a plurality of people at the same time, or a single person can pull each pulling cord 6 little by little in order.
When the ceiling net 1 is expanded again after the typhoon passes, this time, it is only necessary to pull the right end of the drawstring 6 as indicated by the broken line on the right side of FIG.
[0020]
When the ceiling net 1 has been extended, the fasteners 5 are closed again. Although not shown in the figure, the straps attached to the important points of the ceiling net 1 are not hit by strong winds by being tied to the net rack 2, the main column 21, the intermediate column 22, etc. Like.
[0021]
In this way, with the open upper surface of the enclosure net 3 covered with the ceiling net 1, the insect return piece 3A connected to the upper end was formed on the outside of the upper end portion of the enclosure net 3 by folding down. Insect return gaps a are provided.
We conducted observations in several areas for the effect of the insect return gap a to prevent the invasion of insects such as moths and stink bugs into the protected area. It has been found that pests can be prevented from entering.
[0022]
That is, the pests that have climbed along the outside of the enclosure 3 were dead in a state of being pushed into the dead ends of the insect return gap a.
Presumably, the pests did not change their direction in this narrow gap, but moved back to the outside of the insect return piece 3A and could not reach the gap with the ceiling net 1.
[0023]
In the above embodiment, the enclosure net 3 and the insect return piece 3A are integrated, but each of them is made of the same or different material, and the enclosure net 3, the insect return piece 3A, and the reinforcing rope. 4 may be joined together at once by heat fusion means or the like.
[0024]
【The invention's effect】
As is clear from the above explanation, the protection net for orchards and the like according to the present invention is:
The pests that have climbed along the net are simply separated by folding the upper end of the net 2 that is slightly taller than the required height. Can be reliably prevented from reaching the gap between them and entering the protected area.
[Brief description of the drawings]
FIG. 1 shows an embodiment in which the present invention is applied to an orchard, and is a perspective view of a main part in a state where a protective net is installed in the orchard.
FIG. 2 is a longitudinal cross-sectional view of the main part of the protective net.
FIG. 3 is a front view of the entire orchard provided with a protective net.
[Explanation of symbols]
A Protected area 1 Ceiling net 2 Net receiving shelf 3 Enclosure net 3A Bug return piece 4 Rope (string)
5 Fastener 6 Pullstring 7 String threading ring a Insect return gap b Opening / closing start 21 Main strut 22 Intermediate strut 23 Cultivation shelf 24 Ring

Claims (2)

In a combination of a fence net surrounding a protected area such as an orchard and a ceiling net covering the open top surface of the fence net,
An insect return piece 3A having a predetermined height is connected to the upper end of the enclosure net 3, and the insect return piece 3A is folded down to the outside of the protection area. A protective net for orchards, etc. characterized by the formation. The orchard according to claim 1, wherein a string-like body (4) having a predetermined thickness, which is useful for forming the insect-replacing gap (a), is fixed along the inside of the folding portion of the enclosure net (3). Protective net for etc.

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