JP2018000068A - Weeds prevention tools - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide weeds prevention tools which prevent from careless exposure of the ground around a sapling.SOLUTION: A weeds prevention tool 1 has two plate-like members 1A and 1B, and by coupling these plate-like members 1A and 1B, a sapling hole 1a in which a tree, such as a sapling, is positioned in the center section is formed. Each plate-like member 1A, 1B is a molding processed product of synthetic resin, paper, metal, or the like and is half circle shape in plane view. Each plate-like member 1A, 1B makes its linear part face each other to be joined, and the plate-like members 1A and 1B are coupled by inserting a joint pin 1Aa into a joint hole 1Ba to finish the weeds prevention tool 1.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a herbicide that is placed on the ground surface around trees such as seedlings and mature trees to prevent the propagation of weeds and the like.

  Small seedlings planted in the wilderness or logging sites for planting need to mow the surrounding weeds for several years after planting. A mower is used to trim the weeds. When the seedlings are small, the weeds and seedlings are discriminated and only the weeds are trimmed.

  In order to save the trouble of mowing, it is also known to put a sheet or film on the root of the seedling, that is, on the ground surface around the seedling when planting.

  By the way, when the seedlings are small, the seedlings are mixed in the weeds and are difficult to discriminate, and there is a possibility that the seedlings may be cut by mistake with a mower.

  On the other hand, in order to stably install a sheet or a film, it is necessary to secure it with a large number of piles, and considerable work is required for this pile driving work.

  Therefore, in order to prevent the growth of weeds that hinder the growth of seedlings and to avoid cutting the seedlings when cutting the weeds, it is easy to visually check the position of the planted seedlings. In order to make it difficult to grow weeds, an afforestation block has been proposed in which a sapling is surrounded by a block composed of a plurality of block members (see Patent Document 1).

JP 2007-236316 A

  In the thing of patent document 1, since only the block members are installed in contact with each other, the block members are separated from each other, and the ground around the seedlings is exposed to prevent weeds from growing. May not be fully utilized.

  An object of this invention is to provide the grass protection tool which prevents the ground around a tree being exposed carelessly.

  Invention of Claim 1 has a hole for trees, is a grass protection tool installed so that the ground surface around a tree may be covered, Comprising: Two plate-shaped members are combined and these two plate-shaped members are combined. The hole for trees is formed, and a joining means for joining the two plate-like members is provided between the two plate-like members.

  In this way, since the two plate-like members are joined by the joining means, the state of covering the ground around the tree is reliably maintained, and the ground around the tree is inadvertent due to movement of the plate-like member, etc. Is prevented from being exposed. Therefore, the herbicidal effect that prevents weeds from growing around the trees is sufficiently exerted.

  In this case, as described in claim 2, the plate-like member is provided with a joining pin protruding upward or downward on one side and a joining hole corresponding to the joining pin on the other side. It can be made to join by inserting in a joining hole.

  According to a third aspect of the present invention, the plate-like member is provided with a convex portion protruding in the horizontal direction on one side and a concave portion corresponding to the convex portion on the other side, and fitting the convex portion into the concave portion. Can be joined.

  According to a fourth aspect of the present invention, each of the plate-like members is a molded product such as a synthetic resin, paper, or metal, and a cutting line is provided concentrically around the hole for the tree, It is desirable that the size of the hole for tree can be adjusted and changed by removing a part of the periphery of the hole along the cutting line.

  As described in claim 5, each of the plate-like members is provided with a plurality of thin portions that can be punched, and has a cylindrical shape and a plurality of attachment pins at the lower end corresponding to the plurality of thin portions. It is desirable that the protective cover for prevention can be attached by punching out the thin portion with the attachment pin.

  According to a sixth aspect of the present invention, the protective cover is formed by joining two semi-cylindrical members, and each semi-cylindrical member includes a semi-cylindrical daylighting unit and upper and lower portions thereof. The upper and lower plate portions provided on the edge and the side plate portions provided on the left and right side edges of the daylighting portion are combined with the side plate portions to form a cylindrical protective cover, and the protection In a state where the cover is attached, it is desirable that the joining line of the plate-like member and the joining line of the semi-cylindrical member intersect in plan view.

  According to a seventh aspect of the present invention, it is desirable that each plate-like member is provided with a movement prevention pin inserted into the ground surface on the lower surface.

  In the present invention, since the two plate-like members are joined by the joining means, the state of covering the ground around the tree can be reliably maintained. Therefore, it is possible to prevent the ground around the tree from being inadvertently exposed due to the movement of the plate-like member, and the herbicidal effect to prevent weeds from growing around the tree is not impaired.

It is a figure which shows the state which installed the grass protection tool which concerns on this invention in the root of a tree. It is a figure which divides and shows the said grass protection tool. It is a figure which shows the other example of the said grass protection tool. It is explanatory drawing in the case of using a protective cover. It is explanatory drawing of the method of fixing the said grass protection tool to the ground. It is explanatory drawing of the other method of fixing the said grass protection tool to the ground. It is a figure which shows the usage example of the plate-shaped member of the said weed protection tool.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a diagram showing a state in which the grass protection device according to the present invention is installed at the root of a tree, and FIG. 2 is a diagram showing the grass protection device divided.

  As shown in FIG. 1, the grass protection device 1 has a disc shape, is installed at the root of a seedling 2 (tree), and is provided so as to cover the ground surface around the seedling 2. Thereby, it is possible to prevent weeds that hinder the growth of the seedling 2 from growing. Further, the herbicidal tool 1 serves as a mark, and it is possible to avoid cutting up to the seedling 2 when cutting the weeds.

  As shown in FIG. 2, the grass protection device 1 has two plate-like members 1A and 1B, and by combining these plate-like members 1A and 1B, a seedling hole 1a in which a seedling is located at the center portion. (Holes for trees) are formed. Each of the plate-like members 1A and 1B is a molded product such as synthetic resin, paper, or metal, and has a substantially semicircular shape in plan view. The seedling hole 1a may be shifted from the center of the grass protection device 1. The grass protection device 1 does not need to be in a disk shape in plan view, and is, for example, a polygonal shape or an elliptical shape. Also good.

  The plate-like members 1A and 1B are arranged so that the straight (diameter) portions face each other, and in that state, they are joined by inserting a joining pin into the joining hole to form a seedling hole 1a. Yes. Each of the plate-like members 1A and 1B has the same shape, and in the annular portion of the outer periphery, one end in the circumferential direction is a plate portion from which the joining pin protrudes, while the other end is the joining pin. It is the board part provided with the joint hole which can be inserted. And since each plate-shaped member 1A, 1B is formed so that it may have flexibility, the edge part of the outer peripheral part of plate-shaped member 1A, 1B can use a joining pin to a joint hole easily at the time of joining. Can be inserted.

  That is, as shown in FIG. 2, one end of the outer peripheral portion of the plate-like member 1 </ b> A is provided with a joining pin 1 </ b> Aa protruding upward, while one side of the outer peripheral portion of the plate-like member 1 </ b> B. A joining hole 1Ba into which the joining pin 1Aa can be inserted is provided at the end corresponding to the joining pin 1Aa. And the said one side edge part is joined by inserting joining pin 1Aa in joining hole 1Ba. Further, the other end portions of the plate-like members 1A and 1B are joined in the same manner although the vertical relationship is reversed. As described above, since the joining pin is inserted into the joining hole so that the insertion direction of the joining pin is reversed between the one side end and the other side end, both members 1A and 1B are not prepared. It is joined so as not to come off.

  In this case, both plate-like members 1A and 1B can be joined as shown in FIG. That is, one plate-like member 1A is provided with a convex portion 1Ab that protrudes in the horizontal direction, and the other plate-like member 1B is provided with a concave portion 1Bb that is detachably engaged with the convex portion 1Ab corresponding to the convex portion 1Ab. The protrusion 1Ab is joined by fitting into the recess 1Bb.

  Each of the plate-like members 1A, 1B is provided with a cutting line S concentrically around the seedling hole 1a, and can be easily cut along the cutting line S. Thus, along the cutting line S, the size of the seedling hole 1a can be changed as necessary by cutting a portion around the seedling hole 1a (center side portion) and removing a part thereof. Has been. Therefore, the size of the seedling hole 1a is changed at the time of installation according to the size of the seedling 2 to which the herbicide 1 is to be installed, or the size of the seedling hole 1a is increased according to the growth of the seedling 2. Can be used. In this example, three cutting lines S are provided, but the present invention is not limited to this.

  As shown in FIG. 4, a plurality of circular thin portions 1Ac and 1Bc that can be punched to attach the cylindrical protective cover 11 are formed around the seedling hole 1a. This protective cover 11 protects the seedlings from the damage caused by wild animals and promotes growth or restores the tree vigor of the damaged seedlings.

  The protective cover 11 is described in, for example, Japanese Patent No. 3796244, and is formed by joining two semi-cylindrical members 11A and 11A. A net-shaped daylighting unit 11a is formed so as to capture sunlight.

  Each semi-cylindrical member 11A is provided with upper and lower plate portions 11b and 11c at the upper and lower edges of the semi-cylindrical daylighting portion 11a, and the side plates connecting the upper and lower plate portions 11b and 11c to the left and right side edges of the daylighting portion 11a. Portions 11d and 11d are provided. Then, the two semi-cylindrical members 1A and 1A are coupled by connecting the opposing side plate portions 11d and 11d with a coupling member such as a bolt, so that a cylindrical protective cover 11 is obtained.

  The lower substrate 11c is provided with a plurality of attachment pins 11e that protrude downward for attachment to the grass protection device 1. The thin portions 1Ac and 1Bc are provided corresponding to these mounting pins 11e, and the protective cover 11 is provided on the upper side of the grass protection device 1 by punching the thin portions 1Ac and 1Bc with the mounting pin 11e at the time of mounting. It is attached. The tip portion of the mounting pin 11e that penetrates the grass protection device 1 is inserted into the ground so that the grass protection device 1 and the protection cover 11 do not move carelessly.

  And the joining line L1 of the plate-like members 1A, 1B is provided so as to be at a position different from the joining line L2 of the semi-cylindrical members 11A, 11B (in this embodiment, it is shifted by 90 degrees in the circumferential direction). It is done. Thus, when the protective cover 11 (half-cylindrical members 11A and 11B) is provided, even if something hits the protective cover 11, the joining line L1 is shifted from the coupling line L2, and thus the plate-like member 1A. , 1B is difficult to come off.

  In the said embodiment, since the protective cover 11 is provided, the weed prevention tool 1 is prevented from moving from an installation position by the attachment pin 11e, but when the protective cover 11 is not provided, it is shown in FIG. As described above, the movement preventing pins 1Ad and 1Bd projecting downward are provided on the lower surfaces of the plate-like members 1A and 1B, and the movement preventing pins 1Ad and 1Bd are inserted into the ground at the time of installation, so that the grass protection device 1 is inadvertently used. It is also possible not to move and to ensure that the installation position does not shift. Further, as shown in FIG. 6, without providing the movement prevention pin, the fixing pin 12 such as a screw is passed through the grass protection device 1 (plate-like members 1A and 1B), and the tip of the fixing pin 12 is in the ground. It is also possible to fix the grass protection tool 1 so as not to move by being inserted.

  Furthermore, as shown in FIG. 7, the plate-like member 1B (or the plate-like member 1A) may be used as a receiving portion for a support member that is fixed to the tip of the support bar 13 and supports the branch 14a of the tree 14 and the like. it can. In this case, the lower end of the support bar 13 is inserted into the ground so as not to move. Further, the plate-like member 1B may be provided with a coupling hole for coupling the support bar 13 with two screws (see the coupling hole 1Be in FIG. 6).

DESCRIPTION OF SYMBOLS 1 Weed protection tool 1a Hole 1A for seedlings Plate-like member 1Aa Joint pin 1Ab Protrusion part 1Ac Thin part 1Ad Movement prevention pin 1B Plate-like member 1Ba Joint hole 1Bb Concavity 1Bc Thin part 1Bd Movement prevention pin 1Be Joint hole 11 Protective cover 11A Half cylinder Shaped member 11a Daylighting portion 11b Upper plate portion 11c Lower plate portion 11d Side plate portion 11e Mounting pin 12 Fixing pin 13 Support rod 14 Branch

Claims (7)

A grass protection tool that has a hole for a tree and is installed so as to cover the ground surface around the tree,
It comprises two plate-like members, and the hole for trees is formed by combining the two plate-like members,
Between the two plate-like members, a joining means for joining the two plate-like members is provided.   The plate-like member has a joining pin protruding upward or downward on one side, a joining hole corresponding to the joining pin on the other, and is joined by inserting the joining pin into the joining hole. The herbicide according to 1.   2. The plate-like member according to claim 1, wherein a convex portion that protrudes in a horizontal direction is provided on one side, and a concave portion is provided on the other side corresponding to the convex portion, and the convex portion is joined by fitting the convex portion into the concave portion. The described herbicide. Each plate-like member is a molded product such as synthetic resin, paper, metal, etc., and a cutting line is provided concentrically around the hole for the tree,
The grass protection device according to claim 2 or 3, wherein the size of the hole for tree can be adjusted and changed by removing a part of the periphery of the hole for tree along the cutting line. Each plate-like member is provided with a plurality of thin portions that can be punched,
5. A protective cover for preventing damage caused by a cylindrical shape having a plurality of attachment pins at the lower end corresponding to the plurality of thin portions can be attached by punching the thin portions with the attachment pins. The herbicide as described in any one. The protective cover is formed by joining two semi-cylindrical members,
Each of the semi-cylindrical members has a semi-cylindrical daylighting portion, upper and lower plate portions provided at upper and lower edges thereof, and side plate portions provided at left and right side edges of the daylighting portion, and the side plate portions are coupled to each other. By doing so, it will be a cylindrical protective cover,
The grass protection device according to claim 5, wherein the joining line of the plate-like member and the joining line of the semi-cylindrical member intersect in plan view with the protective cover attached.   Each said plate-shaped member is a weedproof tool as described in any one of Claims 1-4 in which the movement prevention pin inserted in the ground is provided in the lower surface.

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