JP3982939B2 - Seedling protective cover - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a technique for facilitating removal of weeds around a seedling and making an environment suitable for growing the seedling in a cylindrical protective cover placed around the seedling to protect the seedling.
[0002]
[Prior art]
Conventionally, in order to protect seedlings planted in, for example, mountain forests from wild animals and the like, a technique is known in which the periphery of the planted seedlings is covered with a cylindrical protective cover. Thus, after the seedling N has been planted, a cylindrical protective cover 51 is placed so as to surround the periphery of the seedling N, and if necessary, a part of the lower end is buried and buried in the soil. By fixing it to a nearby support column 52, etc., it is protected from the damage caused by wild animals such as deer, rabbits and rats.
[0003]
[Problems to be solved by the invention]
By the way, when the periphery of the seedling N is covered with the cylindrical protective cover 51 in this way, the protective cover 51 must be removed from the support column 52 in order to weed even if weeds grow in the protective cover 51. If it is left unattended, the weeds will be nourished and the growth of the seedling N will deteriorate.
In addition, the temperature difference in the protective cover 51 tends to become intense between daytime and nighttime when there is a strong influence of solar radiation and the like, which tends to have an adverse effect on the growth of the seedling N.
[0004]
Therefore, an object of the present invention is to make it possible to easily remove weeds in a protective cover and to create an environment suitable for growing seedlings by reducing temperature differences such as day and night in the protective cover.
[0005]
[Means for Solving the Problems]
To achieve the above object, the present invention provides a seedling protective cover for protecting a seedling, a cylindrical main body that covers the seedling and has an opening hole for weeding in a part of the lower side surface, A slide body that is slidably fitted to the outside of the main body and shields or opens the opening hole is provided, and a small hole through which air can flow is provided in a portion of the slide body that overlaps the opening hole. I did it.
[0006]
Then, the opening hole is usually shielded by the slide body, and the opening hole of the cylindrical main body can be opened only by sliding the slide body as necessary. If it can be removed, weeds can be easily removed without the trouble of shifting the position of the main body.
For this reason, the size and shape of the opening hole for weeding are set to the minimum size and shape that allow for weeding by inserting a part of the hand, for example, and the strength is reduced by making the size too large. Take care to prevent it.
[0007]
In addition, when a small hole is formed in the slide body and the opening hole is covered with the slide body, the small hole faces the position of the opening hole, so that the air and the outside air of the cylindrical main body are actively circulated. Thus, for example, a temperature difference between daytime and nighttime can be reduced, and a seedling growing environment can be improved.
Incidentally, although the upper part of the cylindrical body is open, the temperature near the seedling can be made more uniform if the lower air close to the seedling is circulated with the outside air.
[0008]
Here, the shape of the small hole is arbitrary. For example, it may be a round hole, a square hole, a slit hole, or a hole of another shape. However, care should be taken so that wild animals do not catch a corner, a nail, etc. Also, it is not preferable to make the size too large in order to avoid problems such as feeding damage of wild animals.
[0009]
Incidentally, the main body and the slide body are suitable because it is possible to easily secure the required strength by molding from a synthetic resin, and can be constructed at a low cost, and it is also easy to avoid blocking solar radiation. .
Moreover, the cross-sectional shape of a cylindrical main body and a slide body is arbitrary, A cross-sectional polygonal shape, a cross-sectional circle shape, or other cross-sectional shapes may be used.
[0010]
According to a second aspect of the present invention, the main body is provided with a locking portion that engages with a part of the slide body and fixes its position when the slide body opens the opening hole.
[0011]
Then, when the slide body is slid to open the opening hole, if the slide body is engaged with the locking portion and fixed in that position, the slide body becomes an obstacle when weeding work. Rather, weeding can be done easily.
[0012]
At this time, the opening hole for weeding is normally set near the lower end of the main body close to the ground. Therefore, when opening the opening hole by sliding the slide body, open the slide body. Since it is common to move it above the hole, for example, the locking part is formed in a position or shape that prevents the slide body from falling, for example, a cut part or the like in a part of the main body above the opening hole , And the lower end portion of the slide body may be inserted into and locked in the cut portion, or may be locked by other methods.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the accompanying drawings.
Here, FIG. 1 is a perspective view of the seedling protective cover according to the present invention, a state diagram in which the opening hole is shielded by the slide body, and FIG. 2 is a perspective view of the seedling protective cover, and the opening body is opened by moving the slide body FIG. 3 is a longitudinal sectional view of the seedling protective cover.
[0014]
The seedling protective cover 1 according to the present invention is installed so as to surround the planted seedlings in order to protect the seedlings from the damage caused by wild animals when planting seedlings such as cedar, cypress and other broad-leaved trees. As shown in FIG. 1, a cylindrical main body 2 made of synthetic resin is provided around a seedling, and a slide body 3 made of synthetic resin that is slidably fitted to the outer surface of the main body 2. The opening is provided with an opening hole 2h for weeding, and the slide body 3 is configured to shield and open the opening hole 2h.
[0015]
The main body 2 is, for example, polypropylene (random polypropylene, block polypropylene, syndiotactic polypropylene), polyethylene (high density polyethylene, medium density polyethylene, low density polyethylene), a copolymer of ethylene and a monomer copolymerizable with ethylene. It is composed of a polyolefin such as an ethylene copolymer, or a rigid or semi-rigid polyvinyl chloride, a copolymer synthetic resin of an olefin monomer and a vinyl chloride monomer, or a mixture thereof. Both ends are open.
By the way, the reason why it has a hexagonal cross section is that it can be transported efficiently by reducing the volume if it is crushed flat during transportation, etc. Also, if it can be easily made into a cylindrical shape on site, it may have a circular cross section or other shapes.
[0016]
In the embodiment, if the end of the upper end opening is sharpened, there is a risk of damage at the sharp part when the grown seedling branch or the like comes into contact. Fold inward the length and insert the folded end into the notch hole to smooth the vicinity of the opening end, and prevent the seedling branches etc. from touching and damaging the opening end Yes.
Incidentally, the dimensions of the embodiment of the main body 2 are, for example, about 1800 mm in height and about 120 mm in inner diameter (diagonal length of the corner portion).
[0017]
In the embodiment, the opening hole 2h formed in the main body 2 is formed over two adjacent planar surfaces among the surrounding six planar regions (of course, it may be formed in a single plane). It is sized so that weeds inside the main body 2 can be pulled out, for example, an elliptical shape having a minor axis of about 6 to 10 mm in the horizontal direction and a major axis of about 15 to 25 mm in the vertical direction. Has been.
[0018]
The slide body 3 has a hexagonal cross-section that is slightly larger than the cross-sectional shape of the main body 2 and is slidably fitted in the longitudinal direction with respect to the main body 2 and is large enough to close the opening hole 2h. Has been.
And this slide body 3 is also shape | molded from the synthetic resin of the material similar to the main body 2, for example.
[0019]
In addition, a plurality of small holes 3r are provided in a portion of the slide body 3 that overlaps the opening hole 2h when the opening hole 2h is covered, and air can be circulated through the small hole 3r.
And this small hole 3r is formed as a substantially U-shaped louver-shaped hole whose upper side is opened in the embodiment, while making it a relatively small hole so as not to be affected by wild animal feeding damage, This prevents problems such as deer catching on corners and falling.
[0020]
Further, when the slide body 3 is slid upward to open the opening hole 3h, the main body 2 above the opening hole 2h is provided with a notch s as a locking portion so that the slide body 3 does not fall downward. At the same time, an insertion protrusion t is formed on the lower side of the slide body 3.
In the embodiment, the insertion protrusion t of the slide body 3 is also formed on the upper side so that the slide body 3 can be applied to either side.
[0021]
Next, the operation of the seedling protective cover 1 as described above will be described.
As shown in FIG. 1, when a seedling N is planted, the main body 2 is covered so as to cover the periphery of the seedling N, and a support column 4 is erected around the seedling N as necessary, and the main body 2 is bound to the support column 4. Fixed by.
At this time, if necessary, a part of the lower end of the main body 2 is embedded in the ground to prevent small animals such as mice from entering.
[0022]
In a normal state, the slide body 3 is slid downward so as to cover the opening hole 2h.
[0023]
By doing so, the seedling N is protected from damage from wild animals, and the temperature difference in the main body 2 is suppressed by the small holes 3r of the slide body 3, so that the seedling N grows smoothly.
[0024]
When weeds grow in the main body 2 after planting, it is preferable to remove the weeds because the nutrients are absorbed by the weeds if they are left unattended and adversely affect the growth of the seedlings N.
At this time, as shown in FIG. 2, the operator raises the slide body 3 to open the opening hole 2h, and inserts the lower insertion protrusion t into the cut portion s and fixes the opening hole 2h. Weed through.
[0025]
In this way, weeding can be easily performed, and when the weeding operation is completed, the insertion protrusion t of the slide body 3 is removed from the cut portion s, and the slide body 3 is slid downward to open the opening hole 2h. Is blocked and protected from food damage.
[0026]
The present invention is not limited to the above embodiment. What has substantially the same configuration as the matters described in the claims of the present invention and exhibits the same operational effects belongs to the technical scope of the present invention.
For example, the shape and material of the main body 2 are arbitrary, and the shape of the opening hole 2h and the shape of the small hole 3r are also arbitrary.
[0027]
【The invention's effect】
As described above, the seedling protective cover according to the present invention has an opening hole for weeding formed in a part of the lower portion of the main body that covers the periphery of the seedling, and is opened by a slide body that is slidably fitted to the outside of the main body. The hole is shielded or opened freely, and a small hole through which air can flow is provided in this slide body, so that an environment suitable for growing seedlings is made by reducing the temperature difference in the main body, The weeds in the main body can be easily removed through the opening hole, which is convenient.
Further, as in claim 2, when the slide body is provided with a locking portion that engages with a part of the slide body and fixes its position when the slide body opens the opening hole, the weeding work can be easily performed. I can do it.
[Brief description of the drawings]
FIG. 1 is a perspective view of a seedling protective cover according to the present invention, in which an opening hole is shielded by a slide body. FIG. 2 is a perspective view of the seedling protective cover, and the opening is opened by moving the slide body. State diagram [Fig. 3] Vertical section of seedling protective cover [Fig. 4] Conventional diagram of seedling protective cover [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Protective cover, 2 ... Main body, 2h ... Opening hole, 3 ... Slide body, 3r ... Small hole, s ... Notch part.

Claims (2)

A seedling protective cover for protecting a seedling, the tubular main body covering the seedling and having an opening hole for weeding formed in a part of the lower side surface, and slidable outside the main body A seedling comprising a slide body that fits and shields or opens the opening hole, and a portion of the slide body that overlaps the opening hole is provided with a small hole through which air can flow. Protective cover. The seedling protective cover according to claim 1, wherein the main body is provided with a locking portion that engages with a part of the slide body and fixes its position when the slide body opens the opening hole. A seedling protective cover characterized by.

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