JP6650643B2 - Method for forming a hole in which seedlings are planted and equipment used in the method - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a method for forming a hole in which a seedling is planted in planting using a weed prevention sheet, and an instrument used for the method.

  2. Description of the Related Art Conventionally, weed control sheets have been used in planting, which means planting and growing plants artificially. Herbicidal sheets are laid on soil to prevent the growth of unintended plants, so-called weeds. In such planting, a hole where a seedling is planted has been formed using a scoop or the like (see Patent Document 1 below).

  However, the excavation work using a scoop tends to be hard labor when forming a large number of holes in which seedlings are planted, and requires a long working time, resulting in poor working efficiency. Furthermore, in the excavation work using a scoop, excavated soil tends to spill on the grass sheet. This causes the soil to remain on the weed control sheet, causing a problem of weed propagation.

JP 2012-161276 A

  The problem to be solved by the present invention is to provide a method that can efficiently form a hole in which seedlings are planted with a small amount of labor and that does not allow excavated soil to remain on a weed control sheet. It is to provide the equipment used.

In order to solve the above problems, the present invention is a method for forming a hole in which seedlings are planted in planting using a weed-proof sheet, wherein a drill bit of a drill is inserted into a through-hole formed in the weed-proof sheet. A guide means for guiding the soil along the drill blade while guiding the soil excavated by the drill and preventing scattering of the soil excavated by the drill, and an accommodation means for accommodating the soil coming out of the guide means On the grass sheet, guide the drill blade into the through hole by the guide means, excavate the soil exposed from the through hole by the drill, and store the soil excavated by the drill in the housing means Providing a method comprising:
Further, the present invention is an instrument used in a method of forming a hole where a seedling is planted with a drill in planting using a weed prevention sheet, wherein a drill blade of a drill is inserted into a through hole formed in the weed prevention sheet. A tool that guides and raises the soil along the drill blade while preventing scattering of the soil drilled by the drill, and a storage device that stores the soil that has exited from the guide device. provide.

  According to the present invention, a hole in which a seedling is planted is drilled, so that the hole can be efficiently formed with a small amount of labor. In addition, the excavated soil is prevented from remaining on the grass sheet because the excavated soil is prevented from being scattered by the drill by the guide means of the instrument and the soil from the guide means is accommodated by the accommodating means of the instrument. It is possible.

FIG. 1 is a cross-sectional view for explaining the method according to the first embodiment. FIG. 2 is a cross-sectional view for explaining the method according to the first embodiment. FIG. 3 is a plan view of the device adopted in the first embodiment. FIG. 4 is a cross-sectional view of the device employed in the first embodiment. FIG. 5 is a partial sectional view for explaining the contact preventing means. FIG. 6 is a partial sectional view for explaining the contact preventing means. FIG. 7 is a cross-sectional view for explaining the method according to the second embodiment. FIG. 8 is a cross-sectional view for explaining the method according to the third embodiment.

  Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings, but the technical scope of the present invention is not limited to the contents of the following description.

  Example 1 is an embodiment of the present invention. In the method according to the first embodiment, first, as shown in FIG. 1, a weed control sheet (10) is laid on the soil (11). Conventionally known herbicidal sheets can be used. For example, when planting a creeping plant seedling, a herbicidal sheet capable of passing roots from the sheet surface to soil is suitable.

  Next, as shown in FIG. 1, a through hole (12) is formed in the grass sheet (10). The through-hole is a hole that penetrates the grass sheet, and is usually circular. However, the shape of the through hole is not limited to a circle. The through hole may be formed using a cutting tool such as a cutter, but is preferably formed using a punching die. In this case, the through-hole is formed by pressing a heated punching die against the grass sheet. According to this method, a large number of through holes having the same shape and size can be formed in a short time with a small amount of labor.

  In the first embodiment, after the grass sheet is laid on the soil, the through-holes are formed in the grass sheet. It may be laid on top.

  Next, as shown in FIG. 1, a characteristic device (13) is placed on the grass sheet (10). As shown in FIG. 1, the characteristic instrument employed in the first embodiment includes a guide means (14), a bottom member (15), and a wall member (16).

  As shown in FIGS. 1 and 2, the guide means (14) guides the drill bit (17) of the drill into the through hole (12), and prevents scattering of the drilled soil (18). This is a means that can raise the soil (18) along the drill blade (17). As shown in FIGS. 3 and 4, the guide means (14) employed in the first embodiment is a cylindrical member, and is formed on the bottom member (15) so as to be orthogonal to the bottom member (15). Into the hole (19).

  The characteristic device (13) further includes a contact preventing means (20) as shown in FIG. The contact prevention means is a means capable of preventing contact between the edge of the through hole and the drill bit. In the first embodiment, the end of the guide member (14) projecting from the bottom member (15) functions as a contact preventing unit.

  Further, the characteristic device (13) further has elastic means (21) as shown in FIG. The elastic means is a means capable of absorbing irregularities on the surface of the grass sheet. The “roughness of the surface of the grass sheet” as used herein means that when the grass sheet is laid on the soil, it is formed on the surface of the grass sheet by the roughness of the surface of the soil covered with the grass sheet. Means irregularities. In the first embodiment, the sheet-like elastic member provided on the bottom surface of the bottom member (15) functions as the elastic means.

  As shown in FIGS. 3 and 4, the wall member (16) is provided on the plate-shaped bottom member (15) at a predetermined distance from the guide member (14). It is provided so as to surround the periphery of. The wall member (16) employed in the first embodiment is a cylindrical member having a larger inside diameter than the outside diameter of the guide member (14).

  The characteristic device (13) further includes a storage means (22) as shown in FIGS. The storage means is a means capable of storing the soil coming out of the guide means. In the first embodiment, the space formed between the guide means (14) and the wall member (16) functions as a storage means.

  As shown in FIG. 5, the characteristic device employed in the first embodiment is such that the edge (23) of the through hole (12) is pressed by the contact preventing means (20), or as shown in FIG. Thus, the contact prevention means (20) is placed on the grass sheet (10) so as to be inserted into the soil (11) inside the edge (23) of the through hole (12). The excavation work is desirably performed by an operator placing his or her feet on the bottom member and fixing a characteristic tool.

  Next, as shown in FIG. 1, the drill blade (17) is guided to the through hole (12) by the guide means (14). That is, the drill blade (17) is inserted into the guide means (14). Thereby, the drill blade (17) is guided to the soil (11) exposed from the through hole (12).

  Next, the soil (11) is excavated by a drill. As the drill, for example, an electric drill can be employed. In the first embodiment, as shown in FIG. 2, since the hole (24) in which the seedlings are planted is drilled, the hole can be efficiently formed with less labor than drilling with a scoop or the like. . Further, as shown in FIG. 5 or FIG. 6, the contact between the edge (23) of the through hole (12) and the drill blade (17) is avoided by the contact preventing means (20). (10) can be prevented from winding around the drill blade (17). Further, as shown in FIG. 2, since the drill blade (17) is guided by the guide means (14), it is possible to drill a hole (24) substantially perpendicular to the surface of the soil (11). As a result, the operation of planting seedlings becomes easier.

  As shown in FIG. 2, the soil (18) excavated by the drill is not scattered around the periphery of the drill blade (17) by the guide means (14), so that the guide means ( It rises along the drill bit (17) in 14) and exits the guide means (14).

  Next, as shown in FIG. 2, the soil (18) drilled by the drill is stored in the storage means (22). That is, the soil (18) coming out of the guide means (14) is stored in the space functioning as the storage means (22). Since this space is adjacent to the guide means (14), the soil (18) can be automatically accommodated. Further, since this space is isolated from the outside by the bottom member (15) and the wall member (16), the excavated soil (18) does not easily spill around the characteristic appliance (13). Therefore, it is possible to prevent the excavated soil (18) from remaining on the grass sheet (10). As a result, the weed prevention sheet can function effectively, and the propagation of weeds can be suppressed.

  In the hole (24) formed by the method according to the first embodiment, a seedling can be directly planted. For example, an instrument having a flange covering the edge of the through hole is fitted into the hole, and the instrument is inserted into the instrument. Seedlings may be planted.

  Example 2 is another embodiment of the present invention. In the case of using the characteristic tool adopted in Example 1 for soil that has not been leveled or is insufficient, that is, soil in which stones that adversely affect excavation are present, rigid guide means is used. A stone is caught between (14) and the drill blade (17), which may stop the rotation of the drill blade (17) or damage the drill blade (17). Embodiment 2 provides an instrument for improving such a problem.

  As shown in FIG. 7, the characteristic device (13) employed in the second embodiment is configured such that the guide means (14) has an outer cylinder (25) and a first inner cylinder (26). . The outer cylinder is a cylindrical tubular member and has rigidity. The first inner cylinder is a cylindrical member provided inside the outer cylinder, and has flexibility. As the first inner cylinder, for example, a sponge foamed using synthetic rubber as a base material or the like can be used. Note that the first inner cylinder may be a combination of a plurality of cylinder members.

  According to this device, the first inner cylinder (26) is flexible, and the first inner cylinder (26) can be deformed between the outer cylinder (25) and the drill bit (17). There is an advantage that even if a stone is present in 11), the stone is unlikely to adversely affect the rotation of the drill blade (17).

  Example 3 is still another embodiment of the present invention. Example 2 provides good excavation results for soil (11) where only stones smaller than the thickness of the first inner cylinder (26) are present, but for soils where larger stones are present. In some cases, the above-described problems may occur. Embodiment 3 provides an instrument having a structure in which even a large stone, for example, a stone having a size of more than 80% of the pitch of the drill bit (17), does not adversely affect the rotation of the drill bit (17).

  As shown in FIG. 8, the characteristic device (13) employed in the third embodiment has an outer cylinder (25) having a small-diameter portion (27), a large-diameter portion (28), and a tapered portion (29). It is composed. The small diameter portion (27) is located on the upper end side of the first inner cylinder (26). The large diameter part (28) is located at the lower end side of the first inner cylinder (26) and has an inner diameter larger than the inner diameter of the small diameter part (27). The tapered portion (29) exists between the small diameter portion (27) and the large diameter portion (28).

  As shown in FIG. 8, the guide means (14) further includes a second inner cylinder (30), a first space (31), and a second space (32). The second inner cylinder (30) is provided inside the large-diameter portion (28) to hold the first inner cylinder (26). The second inner cylinder (30) is a cylinder member having a height lower than the height of the large diameter portion (28). The second inner cylinder (30) preferably has flexibility in order to facilitate deformation of the first inner cylinder (26). The first space (31) is formed between the first inner cylinder (26) and the large diameter portion (28). The second space (32) is formed between the first inner cylinder (26) and the tapered portion (29).

  In an experiment using the characteristic instrument (13) employed in Example 3, a drill blade (17) having a pitch of 80 mm was inserted into the first inner cylinder (26), and the soil (11) was excavated. . The soil (18) excavated by the drill enters the inside of the first inner cylinder (26) from the lower end thereof, but the first space (31) is formed around the lower end of the first inner cylinder (26). Due to the presence, the lower end of the first inner cylinder (26) can be greatly deformed. Therefore, a large stone (33) could be taken into the first inner cylinder (26). A second inner cylinder (30) is present in the middle of the first inner cylinder (26), but the second inner cylinder (30) has flexibility, so that the first inner cylinder (30) is flexible. The middle part of 26) can be greatly deformed, and the second space (32) exists above the second inner cylinder (30), so that the first and second inner cylinders (26, 30) Easy to deform. As a result, even if the excavated soil contains a stone having a particle diameter of about 70 mm, the stone is guided in the guide means (14) without adversely affecting the rotation of the drill blade (17). It was able to rise along (17) and be discharged from the guide means (14).

DESCRIPTION OF SYMBOLS 10 Weed prevention sheet 11 Soil 12 Through-hole 13 Characteristic instrument 14 Guide means 15 Bottom member 16 Wall member 17 Drill blade 18 Drilled soil 19 Hole formed in bottom member 20 Contact prevention means 21 Elastic means 22 Housing Means 23 Edge of through hole 24 Hole in which seedlings are planted 25 Outer cylinder 26 First inner cylinder 27 Small diameter part 28 Large diameter part 29 Tapered part 30 Second inner cylinder 31 First space 32 Second space 33 Stone

Claims (9)

In planting using a herbicidal sheet, a method for forming a hole in which seedlings are planted,
Guide means for guiding a drill blade of a drill through a through hole formed in a grass sheet and raising the soil along the drill blade while preventing scattering of the soil drilled by the drill; and the guide means. And an accommodation device having accommodation means for accommodating the soil that has exited from the grass sheet,
Guiding the drill blade into the through hole by the guide means,
Drilling the soil exposed from the through hole by the drill,
Storing the drilled soil in the receiving means.   The device includes contact prevention means for preventing contact between the edge of the through hole and the drill bit, and the drill prevents the drill from penetrating while avoiding contact between the edge of the through hole and the drill bit by the contact prevention means. 2. The method of claim 1, comprising excavating soil exposed from the hole. In planting using a weed control sheet, a tool used in a method of forming a hole where a seedling is planted with a drill,
Guide means for guiding a drill blade of a drill to a through hole formed in a grass sheet, and raising the soil along the drill blade while preventing scattering of the soil drilled by the drill;
An accommodating means for accommodating the soil coming out of the guiding means.   4. The device according to claim 3, further comprising contact prevention means for preventing a contact between an edge of the through hole and the drill bit.   The device according to claim 3, further comprising elastic means for absorbing irregularities on the surface of the grass sheet.   4. The device according to claim 3, wherein the guide means includes an outer cylinder and a first inner cylinder provided inside the outer cylinder, and the first inner cylinder has flexibility. The outer cylinder includes a small-diameter portion and a large-diameter portion having an inner diameter larger than the inner diameter of the small-diameter portion,
A second inner cylinder that is provided inside the large diameter portion and holds the first inner cylinder; a portion of the first inner cylinder protruding from the second inner cylinder; The device according to claim 6, further comprising a first space formed between the large-diameter portion and the first space.   The device according to claim 7, wherein the second inner cylinder is flexible. The outer cylinder includes a tapered portion between the small diameter portion and the large diameter portion,
The device according to claim 8, wherein the guide means includes a second space formed between the first inner cylinder and the tapered portion.

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