JP3009585U - Polygon foldable tree protector - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent saplings from animal damage, scratches, etc., promote growth, and be lightweight, compact, durable, and easy to transport. [Structure] The translucent resin sheet 2 is formed into a tubular body having an even polygonal shape with a quadrangular cross section or more. A folding piece 3 having a locking piece 4 is provided on each side of at least one opening edge of the tubular body, and the locking piece 4 is formed on a side surface by folding the folding piece 3 inward. It has a double structure by engaging with the cutout portion 5.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is a polygonal fold to be used by covering seedlings in order to promote growth during the raising of seedlings and forest planting trees and prevent animal damage caused by being eaten by animals such as deer, rabbits, and rats. It concerns expression tree protectors.

[0002]

[Prior art]

 Conventionally, when planting saplings, from 30% due to animal damage caused by deer and other animals eating shoots, leaves or stems, loss of growth of weeds regenerated by saplings, covering damage due to lack of light, etc. There was a problem that 90% died.

For this reason, recently, as shown in FIG. 5, a so-called tree protector 20, which is formed of a semitransparent resin material in a cylindrical shape, is put on the seedling 21 from above the splint 22 that is driven into the ground. By fixing with the string 23, the animal damage is prevented, the seedling 21 is kept at the optimum temperature, and the internal humidity is kept constant to accelerate its growth.

[0004]

[Problems to be solved by the device]

 However, since the tree protector 20 is simply made of resin in a cylindrical shape, it occupies a large space and is inconvenient for transportation. Especially in Japan, there are more steep slopes than in other countries, so it is necessary to transport the product in the most compact condition possible. In this case, it may be possible to convey the resin material as a sheet as it is and assemble it in a tubular shape at the site, but in order to form it into a tubular shape, it is necessary to carry out on-site bonding, a special structure, or assembly work. Not practical.

In addition, the tree protector 20 has a problem that when it is made thin, sufficient strength cannot be obtained and the tree protector 20 is deformed by a twisting force or the like, so that the seedling 21 cannot be appropriately protected. For this reason, it becomes necessary to have a predetermined wall thickness (3 mm or more) (those currently on the market are drawn and molded into a tubular shape, so it cannot be made thinner than this). As a result of the increase in the total weight, there is a possibility that the seedlings 21 cannot be provided with a desired light amount while being disadvantageous in transportation.

Further, in the tree protector 20, since the edge of the upper opening is linear and sharp, when the seedling grows and sticks out of the upper opening, if the branches sway due to wind or the like, the edge of the upper opening will be shaken. May come into contact with parts and be damaged. In this case, if it is attempted to prevent damage to the branches or the like by enlarging the upper end opening in a trumpet shape, it becomes difficult to form a folded structure, and it is not possible to make it compact, which is inconvenient for transportation. In view of the above problems, the present invention aims to provide a polygonal foldable tree protector that prevents saplings from animal damage, scratches, etc., promotes growth, is lightweight, compact, durable, and easy to transport. And

[0007]

[Means for Solving the Problems]

 In order to achieve the above object, in the device according to claim 1, the transparent or semitransparent resin sheet is formed into a tubular body having an even polygonal shape with a quadrilateral or more cross section, and at least one opening edge portion of the tubular body. Each of the sides is provided with a folding piece having a locking piece, the folding piece is folded back inward, and the locking piece is locked in a notch formed in a side surface. The wall thickness of the resin sheet is 0.5 to 1.5 mm, preferably 0.7 to 1.0 mm, although it varies depending on the size, material, and the like. In addition, the transparency of the resin sheet may be changed depending on the site of use, the type of target plant, and the like. In that case, coloring in a desired color can be preferable in view of the landscape.

According to a second aspect of the present invention, a ventilation hole is formed in at least one end side of the tubular body. The vent holes may be opened on the lower end side while covering the seedlings, and the size, number, or shape thereof is not limited.

[0009]

According to the invention of claim 1, at the time of storage and transportation, it is folded in two to form a flat surface and stacked. At the time of use, the folded piece has a polygonal cross section and is folded back inward, and the locking part is locked in the notch to create a double structure for preventing tree scratches and maintaining a square angle. Then, by covering the seedlings from above, animal phytotoxicity is prevented, temperature and humidity are kept constant, and proper growth conditions are obtained, as well as swaying due to wind is prevented.

According to the second aspect of the present invention, the air flow passage is formed by the upper opening portion and the ventilation hole by covering the seedling of the plant which does not like moisture and needs activation of the evaporation action from above. The water vapor generated from the seedlings is exhausted through the upper opening or the ventilation hole.

[0011]

【Example】

 Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a perspective view of a tree protector 1 according to this embodiment. In this tree protector 1, a translucent resin sheet 2 is formed into a tubular shape having a substantially hexagonal cross section, and the edges forming the sides of both ends are extended to form folded pieces 3. There is. A locking piece 4 is formed at the tip of each folding piece 3, and the folding piece 3 is folded back inwardly on the side surface of the resin sheet 2 to form notches 5 formed at both ends of the side surface of the resin sheet 2, respectively. It is designed to be inserted and locked. Examples of the resin material that can be used as the resin sheet 2 include PP (polypropylene) and PE (polyethylene). However, when PE is used, there is no adhesive that can be attached with the current technology, so it is necessary to deal with it by means other than adhesion, such as screwing.

The tree protector 1 is manufactured as follows. That is, first, while moving the long resin sheet 2 (thickness 0.5 to 1.5 mm, preferably 0.7 to 1.0 mm) in one direction, as shown in FIG. The cutting portions 8 are formed in 6 rows by slightly cutting from the surface by the disk-shaped cutting teeth 7 provided on each roller 6 arranged in parallel. As a result, the resin sheet 2 can be naturally formed into a desired hexagonal cross section.

Next, the resin sheet 2 is cut (for example, length 150 cm × width 90 cm). Specifically, as shown in FIG. 3, the resin sheet 2 is extended from the flat sheet portion 10 and the two edges of the flat sheet portion 10 corresponding to each of the six edges divided by the cut portion 8. The folded piece 3 having a width of about 5 cm, the locking piece 4 extending from the center of the tip of each folded piece 3, and the side edge portion of the flat sheet portion 10 extending through the notch portion 8. The flat sheet portion 10 is cut so as to have the glue margin piece 11, and the cut-out portion 5 in which the locking piece 4 is locked is formed in the flat sheet portion 10 in a state where the above-mentioned folded back piece 3 is folded back.

Then, the resin sheet 2 having the cut portion 8 formed therein and cut is placed on the adhesive margin piece 11 with an adhesive (for example, cyanoacrylate, ethanol) so that the cut portion 8 is located inside. Poxy, polystyrene, or polyamide can be used.) And adhere to the opposite side edge to complete. However, the glue margin piece 11 may be heat-welded to the opposite side edge.

In this case, since the number of the cut portions 8 formed in the flat sheet portion 10 is an even number, the two cut portions 8 located at symmetrical positions are used to fold it in two as shown in FIG. And can be stacked. This eliminates the conventional internal space, makes it possible to keep the occupied space very small, and makes it suitable for transportation.

After being conveyed to a mountain or the like, the cutout portion 8 is used to make a substantially hexagonal cross section, and each folding piece 3 is folded back inward so that the locking piece 4 is placed in the cutout portion 5. It can be easily assembled by just inserting it and has good workability.

The assembled tree protector 1 covers the seedling T from above to surround the outer periphery thereof. In this case, the tree protector 1 should be inserted directly into the ground. Then, one or two places (see FIG. 1) are fixed to the upright splint 12 with a string 13 in advance.

The tree protector 1 that surrounds the outer periphery of the seedling T has a substantially hexagonal cross-section due to the cut portion 8 and is squared. This corner portion serves as a kind of reinforcing material and is folded at both ends. Since the piece 3 is folded back to form a double structure, it has higher strength against bending, particularly torsional force, as compared with a cylindrical shape formed with the same thickness. In other words, the minimum required strength can be made thinner than the cylindrical shape, and the weight can be reduced. Therefore, as described above, the tree protector 1 can be transported more easily in combination with reducing the occupied space. This is especially convenient when, as in Japan, it is necessary to carry it on a steep slope by the shoulder of a person.

In addition, the tree protector 1 is formed in a semi-transparent manner by preventing animal damage caused by eating sprouts, leaves or stems from deer, rabbits, rats, etc. on the outer periphery of the seedling T. The seedling T is prevented from being overheated by using the emitted light as scattered light, and carbon dioxide gas generated from the seedling T is accumulated inside. This not only provides good heat retention and moisture retention for the seedling T, but also promotes growth by carbonic acid assimilation.

When the sapling T grows in this way and branches and the like extend from the upper opening of the tree protector 1, the upper edge of the opening has a smooth shape in which the folding piece 3 is connected, and the inner edge of the jujube is inward. Since it swells and has cushioning properties, it will not be damaged even if the branches shake and come into contact with the wind. After that, when the seedling T has grown sufficiently, the tree protector 1 is removed. If the removed tree protector 1 is made of PP or the like that does not have a base, it does not emit harmful substances even when incinerated and is safe.

In the above-mentioned embodiment, the resin sheet 2 is only configured to have a tubular shape. However, when the resin sheet 2 is applied to a plant which dislikes moisture and needs activation of the evaporation action, it is partially By forming the ventilation holes 14 so as to enhance the air permeability, even in the summer, the internal temperature and the internal humidity do not rise excessively and a good heat retention state can be obtained. In this case, in order to most effectively circulate the air inside the tree protector 1, it is preferable that the vent hole 14 (indicated by a chain double-dashed line in FIG. 1) be provided below the side surface. However, the number, size, shape, etc. of the ventilation holes 14 are not limited, but it is preferable that desired ventilation is obtained, animal damage can be appropriately prevented, and processing is easy.

Further, in the above embodiment, the resin sheet 2 is made of a semitransparent material, but a transparent material may be used. In this case, the transparency may be adjusted by coloring. A desired color can be used in consideration of the landscape and the like, and there is no concern that the seedlings will be adversely affected depending on the color difference.

[0023]

[Effect of device]

 As is apparent from the above description, according to the first aspect of the invention, the resin sheet is formed into a tubular body having a polygonal cross section, and the folded portion extending from the opening edge portion is folded inward. Since it is bent and the locking portion is locked in the notch on the side surface, the strength such as twisting is increased, and it is possible to reduce the thickness and weight. In this case, since the flat part that is continuous with the folded part is located inward at the opening edge, it is not damaged even if the seedlings come into contact with it. In addition, since it is an even-numbered polygon that is a quadrangle or more, it does not have an internal space as in the past when folded in two, and can be made very compact by folding and stacking. In other words, because it is lightweight and compact, it is convenient for storage and transportation.

According to the second aspect of the present invention, since the ventilation hole is formed in the cylindrical body, even a plant that dislikes moisture and needs activation of the evaporative action has a high temperature in summer or the like. At times, even if water vapor is generated from the seedlings, the surrounding humidity does not rise too much, and good growth conditions can be obtained.

[Brief description of drawings]

FIG. 1 is a perspective view of a tree protector according to an embodiment.

FIG. 2 is a partial cross-sectional view showing a state in which a cut portion is formed in a resin sheet.

FIG. 3 is a plan view showing a state in which a resin sheet is cut.

FIG. 4 is a perspective view showing a state in which resin sheets are laminated.

FIG. 5 is a perspective view of a tree protector according to a conventional example.

[Explanation of symbols]

 2 Resin sheet 3 Folding piece 4 Locking piece 5 Notch section 8 Notch section

Claims (2)

[Scope of utility model registration request] 1. A transparent or semi-transparent resin sheet is formed into a tubular body having an even polygonal shape with a quadrangular cross section and at least one opening edge of the tubular body has locking pieces on each side. A polygonal foldable tree protector characterized in that a folding piece is provided, the folding piece is folded back inward, and the locking piece is locked in a notch formed in a side surface. 2. The polygonal foldable tree protector according to claim 1, wherein a ventilation hole is formed in at least one end side of the tubular body.