Weeding attachment

Abstract

This invention provides a weeding attachment that can be mounted on the arm of a hydraulic excavator, allowing for easy removal of weeds from the roots. [Solution] The weeding attachment 1 according to the present invention is a weeding attachment 1 that is attached to the arm 10 of a hydraulic excavator 100, and comprises an attachment body 2 having an outer surface 21 with an arc-shaped cross-section, a connecting part 3 provided inside the attachment body 2 and connected to the arm, and a plurality of protrusions 4 that protrude from the outer surface 21 and are arranged in the lateral direction.

Description

Technical Field

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[0001] The present invention relates to a weeding attachment attached to the arm of a hydraulic excavator.

Background Art

[0002] Since weeds damage the landscape and vegetation, weeding such as mowing has been conventionally carried out. Since weeding is heavy labor, various attachments for mowing attached to the arm of a hydraulic excavator have been developed (for example, Patent Document 1).

[0003] Patent Document 1 discloses a mower attached to the arm of a construction machine, the mower having a mower body attached to the arm, a cutting part for cutting grass, a swing mechanism attached to the mower body for swinging the cutting part left and right with respect to the mower body, and a turning mechanism for turning the cutting part in a horizontal plane with respect to the mower body. The turning mechanism includes a support part attached to the swing mechanism and a rotation support part rotatably attached to the support part. The turning axis part of the turning mechanism is provided on the support part, and the cutting part is supported from above by the rotation support part.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, conventional mowers have problems such that the root parts of weeds remain in the soil and, if left unattended, the weeds will grow again.

[0006] Therefore, the present invention aims to provide a weeding attachment that can be attached to the arm of a hydraulic excavator and can easily remove weeds from the roots. [Means for solving the problem]

[0007] The present invention is a weeding attachment that is mounted on the arm of a hydraulic excavator, An attachment body having an outer surface with a vertical cross-section shaped like an arc, A connecting portion is provided inside the attachment body and connects to the arm, Multiple protrusions that protrude from the outer surface and are arranged laterally, has This is a weeding attachment. [Effects of the Invention]

[0008] According to the present invention, it is possible to provide a weeding attachment that can be attached to the arm of a hydraulic excavator and can easily remove weeds from the roots. [Brief explanation of the drawing]

[0009] [Figure 1] This is a perspective view showing an example of an embodiment of the weed control attachment of the present invention. [Figure 2] Figure 1 shows the weeding attachment as viewed from the outer surface side of the attachment body. [Figure 3] This is a side view showing the weeding attachment according to the present invention attached to the arm of a hydraulic excavator. [Figure 4] This is a perspective view showing an example of the shape of a protrusion. [Modes for carrying out the invention]

[0010] The following describes in detail preferred embodiments of the weeding attachment of the present invention. Figure 1 is a perspective view showing an example of an embodiment of the weeding attachment of the present invention. Figure 2 is a view of the attachment body of the weeding attachment shown in Figure 1, viewed from the outer surface side. Figure 3 is a side view showing the weeding attachment according to the present invention attached to the arm of a hydraulic excavator. Figure 4 is a perspective view showing an example of the shape of a projection. In this specification, the left-right direction in Figure 2 is referred to as the horizontal direction, and the up-down direction in Figure 2 is referred to as the vertical direction.

[0011] As shown in Figure 3, the weed control attachment 1 according to the present invention is used by attaching it to the arm 10 of a hydraulic excavator 100. As shown in Figures 1 to 3, the brake shoe base plate 1 according to this embodiment has an attachment body 2 having an outer surface 21 with an arc-shaped vertical cross-section, a connecting part 3 for connecting the attachment body 2 to the arm 10, and a plurality of protrusions 4 that protrude from the outer surface 21 and are arranged in the lateral direction.

[0012] As shown in Figures 1 to 3, the attachment body 2 has an outer surface 21 whose longitudinal cross-section is arc-shaped. In this embodiment, the attachment body 2 is made of a plate-shaped member, and the plate-shaped member is curved to form an arc-shaped longitudinal cross-section. The radius of curvature of the longitudinal cross-section of the outer surface 21 is preferably 300 to 700 mm, more preferably 350 to 650 mm, and even more preferably 400 to 600 mm. The thickness of the attachment body 2 is preferably, for example, 3 to 40 mm, more preferably 4 to 35 mm, and even more preferably 5 to 30 mm.

[0013] The shape of the attachment body 2 when viewed from the outer surface 21 is not particularly limited, but it is preferably rectangular, as shown in Figures 1 to 3. The horizontal length of the attachment body 2 when viewed from the outer surface 21 is preferably 400 to 800 mm, and more preferably 450 to 700 mm. The vertical length of the attachment body 2 when viewed from the outer surface 21 is preferably 200 to 600 mm, and more preferably 300 to 500 mm.

[0014] The connecting portion 3 is a component for connecting the attachment body 2 to the arm 10, and as shown in Figures 1 to 3, it is provided on the inside of the attachment body 2. The shape of the connecting portion 3 is not particularly limited and can be appropriately changed depending on the arm 10 to which it is attached.

[0015] As shown in Figures 1-3, multiple protrusions 4 are provided on the outer surface 21. As shown in Figures 1 and 2, the multiple protrusions 4 protrude from the outer surface 21 and are arranged laterally to form a row 40. The shape of the protrusions 4 is not particularly limited; for example, as shown in Figures 1 and 2, they may be cylindrical, triangular prisms, or polygonal prisms such as square, pentagonal, or hexagonal prisms, as shown in Figures 4(a)-(c). The distance between adjacent protrusions 4 in the lateral direction of the row 40 (the distance represented by X in Figure 2) is preferably 15-90 mm, more preferably 20-85 mm, and even more preferably 25-80 mm. This makes it easier for weeds to become entangled in the multiple protrusions 4, further enhancing the weed-killing effect. Note that some distances between adjacent protrusions 4 may not fall within the above range. Furthermore, the length of the projection 4 is not particularly limited, but considering how easily weeds can get entangled and how easy it is to remove weeds that have gotten entangled in the projection 4, it is preferably 15 to 60 mm, more preferably 20 to 55 mm, and even more preferably 25 to 50 mm. Furthermore, considering how easily weeds can get entangled and the strength of the projection 4, the thickness of the projection 4 is preferably 10 to 40 mm, more preferably 13 to 37 mm, and even more preferably 15 to 35 mm.

[0016] A row 40 composed of multiple protrusions 4 may be provided as a single row on the outer surface 21, but it is preferable to have multiple rows in the vertical direction, as shown in Figures 1 and 2, and more preferably three or more rows. Considering the manufacturing efficiency and weeding efficiency of the weeding attachment 1, it is particularly preferable to have three rows in the vertical direction, as shown in Figures 1 and 2. Furthermore, when multiple rows 40 are provided, it is preferable that the positions of the protrusions 4 in adjacent rows 40 (for example, the central row 40 in Figure 2 and the rows 40 above and below it) do not overlap when viewed from a vertical plane. That is, it is preferable to arrange the protrusions 4 in adjacent rows 40 with a pitch difference of half a pitch. This makes it easier for weeds to become entangled in the multiple protrusions 4 during weeding, thereby improving the weeding effect. Furthermore, the distance between adjacent rows 40 (the distance represented by Y in Figure 2) is preferably 60 to 150 mm, more preferably 65 to 145 mm, and even more preferably 70 to 140 mm. This makes it easier for weeds to become entangled in the multiple protrusions 4 during weeding, further enhancing the weeding effect.

[0017] Furthermore, as shown in Figure 1, the projection 4 preferably has a threaded portion 41 at its base and is fixed to the outer surface of the attachment body 2 by screwing the threaded portion 41 into a threaded hole formed on the outer surface of the attachment body 2. With this configuration, the projection 4 that has worn down due to use can be easily replaced with a new projection 4.

[0018] As described above, the weeding attachment 1 is attached to the tip of the arm 10, as shown in Figure 3. The arm 10 moves in a scratching motion against the surface where weeds are growing, trapping the weeds with the multiple protrusions 4 on the outer surface 21, making it easy to remove the weeds from the roots. Furthermore, compared to conventional attachments, the weeding attachment 1 itself does not require power, and it is easy to attach to the arm 10. In addition, as long as the hydraulic excavator 100 can be used and the arm 10 can reach, weeding can be easily performed even at high places or on slopes.

[0019] The preferred embodiments of the weeding attachment of the present invention have been described above, but the present invention is not limited thereto.

Explanation of Reference Numerals

[0020] 1 Weeding attachment 2 Attachment body 3 Connection part 4 Protrusion 10 Arm 21 Outer surface 40 Row 41 Threaded portion

Claims

1. A weeding attachment that is mounted on the arm of a hydraulic excavator, An attachment body having an outer surface with a vertical cross-section shaped like an arc, A connecting portion is provided inside the attachment body and connects to the arm, Multiple protrusions that protrude from the outer surface and are arranged laterally, has Weeding attachment.

2. Multiple rows of the aforementioned protrusions arranged horizontally are arranged vertically. The weeding attachment according to claim 1.

3. Having three or more of the aforementioned columns The weeding attachment according to claim 2.

4. The positions of the protrusions in adjacent rows are configured so that they do not overlap when viewed from a vertical plane. The weeding attachment according to claim 2.

5. The radius of curvature of the longitudinal section of the outer surface is 300 to 700 mm. The weeding attachment according to claim 1.

6. The length of the aforementioned projection is 15 to 60 mm. The weeding attachment according to claim 1.

7. The thickness of the aforementioned protrusion is 10 to 40 mm. The weeding attachment according to claim 1.

8. The distance between adjacent protrusions in the lateral direction is 20 to 90 mm. The weeding attachment according to claim 1.

9. The distance between adjacent rows is 60 to 150 mm. The weeding attachment according to claim 2.

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