JP2013042720A - Tree protector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tree protector to be used by covering a nursery tree for preventing bird and animal damages by deer, rabbits, mice and the like, in cultivation of nursery trees and trees planted in forest lands, while promoting the growth thereof, which is reduced in the operation steps of manufacturing and assembling in a factory, and is reusable.SOLUTION: The tree protector 10 includes a protector body 11 composed of a transparent or translucent resin sheet; engagement projections 12 disposed zigzag on both side edges of the protector body 11; and locking cutouts 13 formed at the base of each of the engagement projection 12.

Description

  The present invention relates to a tree protector that is used by covering a seedling in order to promote growth at the time of growing a seedling and a planted tree in the forest, and to prevent beast damage such as deer, moths and rats.

  Conventionally, as a tree protector, for example, a transparent or translucent resin sheet is formed into a cylindrical body having an even square shape with a quadrangular cross section or more, and each side of at least one opening edge of the cylindrical body is engaged. There is a polygonal foldable tree protector characterized in that a folded piece having a stop piece is provided, the folded piece is folded inward, and the locking piece is locked to a notch formed on a side surface (Patent Document 1). reference).

  In the said tree protector, the paste margin piece provided in the side edge part of the resin-made sheet | seat in order to form in a cylindrical body was affixed and integrated with the side edge part of the other side with the adhesive agent or heat welding. And the several said tree protector of the folded state was laminated | stacked and packed, and was conveyed to the site of a mountain part. Furthermore, the tree protector folded on site was assembled into a cylindrical body, covered with a planted seedling from above, and then fixed to two support rods standing on the ground via fastening strings.

Utility Model Registration No. 3009585

However, in the tree protector, it is necessary to attach and integrate both side edges of the resin sheet by an adhesive or heat welding, and there are many manufacturing and assembly work processes in the factory, and the production cost is high.
In addition, for example, when a seedling grows sufficiently after five years from the start of use, and it becomes necessary to remove the tree protector, the tree protector needs to be cut vertically and removed, and cannot be reused. There was a point.
In view of the above-described problems, an object of the present invention is to provide a reusable tree protector with fewer work processes in a factory.

  In order to solve the above problems, the tree protector according to the present invention has engaging protrusions arranged in a staggered manner on both side edges of a protector body made of a transparent or translucent resin sheet, and the engaging protrusions. The base is provided with a notch for locking.

According to the present invention, since the protector main body having the engaging protrusions is cut out from the resin sheet and only the locking notch portion is provided at the base of the engaging protrusions, the number of work processes in the factory is reduced. Manufacturing cost can be reduced.
In addition, since the locking notch portions provided at the base portion of the engaging protrusion at the site can be locked to each other and formed into a cylindrical shape, assembly work at the site is easy.
Furthermore, since the notch part for a latching is provided in the base part of the engagement protrusion part, while a latching state is ensured, it becomes difficult to produce stress concentration and durability improves.
When the seedlings have grown sufficiently, the tree protector can be reused by releasing the locking state between the locking notches and unfolding and removing the protector body.

As an embodiment of the present invention, the notch for locking may have an arc shape with a diameter of 3 to 8 mm.
According to the present embodiment, a tree protector is obtained in which the engaging protrusions are easily engaged with each other and are difficult to come off.

As another embodiment of the present invention, the center of the notch for locking may be arranged behind the intersection of the outer peripheral edge of the protector body and the outer peripheral edge of the engaging protrusion.
According to this embodiment, the protector body can be easily engaged and a tree protector that is difficult to come off can be obtained.

In another embodiment of the present invention, the center of the notch for locking is 15 times the diameter of the notch for locking than the intersection of the outer peripheral edge of the protector body and the outer peripheral edge of the engaging protrusion. % To 25% may be arranged on the back side.
According to this embodiment, the protector body can be easily engaged and a tree protector that is difficult to come off can be obtained.

As a new embodiment of the present invention, a plurality of folding cutout grooves may be arranged in parallel at a predetermined pitch along the longitudinal direction on the outer surface of the protector body.
According to this embodiment, a prismatic tree protector is obtained by bending the protector body along the notch groove for bending.

As another embodiment of the present invention, a pair of fixing holes provided with a notch groove for bending provided in the protector body may be arranged at different height positions.
According to this embodiment, since the fastening string inserted through the fixing hole can be fastened to the support rod in a tilted state, the protector main body is not easily flattened by the component force of the fastening force.

As another embodiment of the present invention, at least one holding ring may be fitted to the outer peripheral surface of a cylindrical protector body formed by engaging engagement protrusions with each other.
According to this embodiment, while the intensity | strength of a cylindrical protector main body improves, the said cylindrical protector main body can be fixed to a support rod with a fastening string via the said holding ring.

In another embodiment of the present invention, at least one engagement protrusion may be provided on either one of the upper and lower end surfaces of the retaining ring, and the retaining ring may be a corrugated annular body. May be.
According to this embodiment, there is an effect that the retaining ring can be prevented from being displaced by engaging the fastening string with the engaging protrusion or the corrugated annular body.

1A is a perspective view showing a first embodiment of a tree protector according to the present invention, and FIG. 1B is a partially enlarged perspective view of FIG. 1A. It is the perspective view which looked at 1st Embodiment illustrated in FIG. 1A from the back side. It is a front view which shows the state which expand | deployed the tree protector illustrated in FIG. 1A. 4A is an enlarged view taken along line IV-IV of the tree protector shown in FIG. 3, and FIG. 4B is a partially enlarged view of FIG. 4A. It is a front view which shows the state which expand | deployed 2nd Embodiment of the tree protector which concerns on this invention. It is a partial expanded front view which shows the state which expand | deployed 3rd Embodiment of the tree protector which concerns on this invention. It is a front view which shows the state which expand | deployed 4th Embodiment of the tree protector which concerns on this invention. It is a perspective view which shows 5th Embodiment of the tree protector which concerns on this invention. 9A and 9B are a plan view and a front view of the retaining ring shown in FIG. 10A and 10B are a plan view and a front view showing another embodiment of the retaining ring used in the tree protector according to the present invention. 11A and 11B are a plan view and a front view showing another embodiment of the retaining ring used in the tree protector according to the present invention.

An embodiment of a tree protector according to the present invention will be described with reference to the accompanying drawings of FIGS.
As shown in FIGS. 1 to 4, the tree protector 10 according to the first embodiment is a flat hexagonal cylindrical body made of a transparent or translucent long resin sheet 11. Engaging protrusions 12 are arranged in a staggered manner along both side edges, and locking arc-shaped notches 13 are provided at the bases on both sides of the engaging protrusion 12, respectively.

  The protector main body 11 includes six pieces along the longitudinal direction on the surface of a resin sheet of PP (polypropylene) or PE (polyethylene) having a thickness of 0.2 mm to 1.5 mm, preferably 0.3 mm to 0.7 mm. The bending notch grooves 14 are provided in parallel at a predetermined pitch. By providing the notch groove 14 for bending, the bending work at the site becomes easy and accurate, and the working efficiency is good. The protector body 11 may be added with a filler that transmits only the wavelength of light useful for plant growth.

  In the present embodiment, the case where the planar hexagonal tree protector 10 is formed has been described. However, the present invention is not limited to this, and for example, a planar triangular, tetragonal, pentagonal, or octagonal shape may be used. Moreover, you may form so that it may become a planar circle, without providing the notch groove for bending. Furthermore, you may provide the vent hole as needed.

  Further, the protector body 11 is provided with a fixing hole 15 so as to be paired with a notch groove 14 for bending. Since the fixing holes 15 are provided at the same height, there is an advantage that the connection work is facilitated. Needless to say, the position and number of the fixing holes 15 can be appropriately selected as necessary.

As shown in FIG. 4B, the center 16 of the locking arcuate notch 13 is shifted to the far side from the intersection of the outer peripheral edge of the protector body 11 and the outer peripheral edge of the engaging protrusion 12. It is provided. The diameter of the locking arcuate notch 13 is preferably 3 mm to 8 mm. This is because if the diameter is less than 3 mm, the engagement protrusion 12 is easily disengaged, and if the diameter exceeds 8 mm, the engagement portion is easily displaced, and the engagement protrusions 12 and 12 are easily disengaged from each other.
Further, when the diameter of the locking arcuate cutout portion 13 is 3 mm to 8 mm, the center 16 thereof is shifted from the base portion of the engagement portion 12 to the back side by 15% to 25% of the diameter. It is preferable. This is because if the ratio is less than 15%, the opening becomes large and the engagement protrusion 12 is easily disengaged. If the ratio exceeds 25%, the engagement becomes difficult and the assembling work is troublesome.

  In this embodiment, even if the engagement protrusions 12 and 12 are engaged with each other, a flat surface is formed. For this reason, since the bending moment does not continuously act on the engaging protrusions 12 and 12 engaged with each other, there is an advantage that the durability is excellent and the life is long.

Next, the assembly and use method in the field of this embodiment is demonstrated.
First, the protector body 11 is folded inward along the notch groove 14 for folding, and a crease is provided. Then, the engaging protrusions 12 and 12 provided on both side edges of the protector body 11 are assembled to each other, and the locking arcuate notch 13 provided on the base of the engaging portion 12 is locked to each other. By doing so, the planar hexagonal cylindrical tree protector 10 is formed.
On the other hand, a seedling (not shown) planted on the ground is covered with the tree protector 10 to surround the periphery of the seedling. As shown in FIGS. 1 and 2, after the support bars 20, 20 are driven into both sides of the tree protector 10, the fastening string 21 is inserted into the pair of fixing holes 15 and tied to the support bar 20. The tree protector 10 is fixed.

  And when time passes smoothly without suffering beast damage such as deer, and the seedling grows sufficiently, the fastening string 21 is cut, and the engagement protrusions 12 and 12 are disengaged from the tree. Unfold and remove the protector 10. Next, the support rods 20 and 20 are pulled out and reused together with the tree protector 10.

As shown in FIG. 5, the second embodiment is not limited to the case where the pair of fixing holes 15 are provided at the same height, but is a case where the provided positions are arranged so as to be shifted up and down.
According to the present embodiment, the tree protector 10 is flattened by the component force of the fastening force of the fastening string 21 by fixing the tree protector 10 to the support rod 20 through the fastening string 21 in the fixing holes 15 and 15 having different heights. There is an advantage that it is difficult to become.
Others are the same as in the first embodiment described above, and a description thereof will be omitted.

In the third embodiment, as shown in FIG. 6, the engagement protrusion 12 has a semi-elliptical shape.
According to the present embodiment, since the outer periphery of the engaging protrusion 12 is arcuate, the engaging protrusions 12 and 12 are less likely to catch each other during assembly work, and the assembly work is further simplified. is there.
The rest is substantially the same as in the first embodiment described above, and a description thereof will be omitted.

As shown in FIG. 7, the fourth embodiment is a case in which the tree protector 10 is formed by assembling the protector bodies 16 and 16 divided into two along the length direction.
According to the present embodiment, the tree protector 10 can be formed by assembling the narrow protector bodies 16 and 16 having the same planar shape. For this reason, the floor area of the protector body 16 before assembly is reduced, and there is an advantage that transportation, in particular, transportation to a mountainous site is facilitated.
The rest is substantially the same as in the first embodiment described above, and a description thereof will be omitted.

In the fifth embodiment, as shown in FIGS. 8 and 9, the protector main body 11 not provided with the above-described bending notch groove is bent, and the engaging protrusions 12 and 12 are engaged with each other, so that the plane is substantially flat. This is a case where the circular cylindrical tree protector 10 is formed. The tree protector 10 is fitted with an annular holding ring 30.
The retaining ring 30 reinforces the tree protector 10 and fixes the tree protector 10 to the support rods 20 and 20 via a fastening string 21. For this reason, trapezoidal engagement protrusions 31 are provided on the upper and lower end surfaces of the holding ring 30 at a predetermined pitch.
The other parts are almost the same as those of the first embodiment, and the same parts are denoted by the same reference numerals and the description thereof is omitted.
According to the present embodiment, since the bending notch groove is not provided, there is an advantage that the tree protector 10 with a small production man-hour and high productivity can be obtained.

Note that the holding ring 30 is not limited to a flat ring shape, and may be, for example, a flat triangle, a quadrangle, a hexagon, or an octagon, and an engagement protrusion may be provided as needed. .
Further, the holding ring 30 may be provided with at least one engagement protrusion, may be provided so as to be aligned vertically, or may be provided so as to protrude vertically in a staggered manner.

  Furthermore, the retaining ring 30 is not limited to the above-described shape, and if it is an annular retaining ring, for example, as shown in FIG. 10, it is an annular body in which square engaging protrusions 31 are vertically projected at a narrow pitch. Of course, as shown in FIG. 11, it may be a continuous corrugated annular body.

  Of course, the tree protector according to the present invention is not limited to the shape of the above-described embodiment. In particular, the notch for locking is not limited to the arc shape described above, but may be a curve made of a polygon, for example, a hexagon, an octagon, a dodecagon, or the like.

DESCRIPTION OF SYMBOLS 10: Tree protector 11, 16: Protector main body 12: Engagement protrusion 13: Arc-shaped notch part for latching 14: Notch groove for bending 15: Fixing hole 20: Support rod 21: Fastening string 30: Holding ring 31 : Projection for engagement

Claims (9)

  The engaging protrusions are arranged in a staggered manner on both side edges of the protector body made of a transparent or translucent resin sheet, and a locking notch is provided at the base of the engaging protrusion. Tree protector.   The tree protector according to claim 1, wherein the notch for locking has an arc shape with a diameter of 3 to 8 mm.   The center of the notch for latching is arrange | positioned in the back | inner side rather than the intersection of the outer-periphery edge part of a protector main body, and the outer-periphery edge part of an engaging protrusion, The Claim 1 or 2 characterized by the above-mentioned. Tree protector.   The center of the notch for locking is arranged 15% to 25% of the diameter of the notch for locking from the intersection of the outer peripheral edge of the protector body and the outer peripheral edge of the engaging protrusion. The tree protector according to claim 1, wherein the tree protector is provided.   5. The tree protector according to claim 1, wherein a plurality of folding cut-out grooves are arranged in parallel along the longitudinal direction at a predetermined pitch on the outer surface of the protector body. .   6. The tree protector according to claim 5, wherein the pair of fixing holes provided in the protector main body with the bending notch grooves therebetween are arranged at different height positions.   The at least 1 holding ring was fitted to the outer peripheral surface of the cylindrical protector main body formed by engaging the engaging protrusions with each other. Tree protector.   8. The tree protector according to claim 7, wherein at least one engaging protrusion is provided on either one of the upper and lower end surfaces of the holding ring.   The tree protector according to claim 7, wherein the holding ring is a continuous corrugated annular body.

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