JP3158014U - Low grass mower - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a low-grass brush cutter capable of reliably removing short weeds without damaging crops even when weeding work is performed in a narrow field passage. A circular plate body 1 is disposed at the tip of a rod-shaped operation shaft 2 so that the plate body 1 can be rotated by a power source, and the lower surface of the plate body 1 has at least a plurality of pieces. The projections 3, 3... Are formed along the radial line, while the upper surface side of the plate body 1 is covered with a guard member 4, and the guard member 4 is attached to the operation shaft 2 in a fan-shaped support. The guard member 4 is composed of a lid 41 and a curved protective wall 42 that hangs down from the peripheral arc edge of the support lid 41, and the guard member 4 is spaced outside the peripheral edge of the plate 1 by a predetermined distance. The protective wall 42 is disposed, and the covering is fixed so that an angle formed between at least one radial end edge of the support lid 41 and the operation shaft 2 becomes an obtuse angle. [Selection] Figure 1

Description

  The present invention is an improvement of a brush cutter, and more specifically, even when weeding work is performed in a narrow field passage, it is possible to reliably remove short weeds without damaging crops. It relates to low grass brush cutters.

  As is well known, in fields where crops are cultivated, it is necessary to frequently remove weeds that inhibit the growth of crops.

  Conventionally, in order to remove such weeds, a brush cutter that rotates a blade with a motor or an engine or the like has been used, but in the case of relatively short weeds within 10 cm, the stem portion There was a problem that even if it was cut, it could not be removed.

  Therefore, in such a brush cutter, in order to remove weeds having a low height, in addition to the blade formed on the peripheral edge of the plate, a protrusion is formed on the lower surface of the plate, and the weed on the ground surface is formed by the protrusion. Has been disclosed (see, for example, Patent Documents 1 and 2).

  However, such a brush cutter is used in a field such as a leek field, where the space between the ridges where the leeks are planted and the ridge is narrow, so that an operator stands in the narrow passage and performs weeding work. In addition, there is a risk that the blade may accidentally come into contact with the roots of the leeks, or the scattered pebbles may hit directly, which may damage the crop.

  Moreover, if the blade bites into the ground more than necessary, the soil may loosen, the embankment may collapse, and the crop may fall.

Japanese Utility Model Publication No. 5-4831 (page 3-5, Fig. 1-3) JP 2000-166306 A (page 4-6, FIG. 1-6)

  The present invention was made in view of the above-described problems in conventional brush cutters, and the purpose of the present invention is even when weeding work is performed in a narrow agricultural field passage. Another object of the present invention is to provide a low-grass brush cutter that can reliably remove short weeds without damaging crops.

  Means adopted by the present inventors for solving the above-described problems will be described with reference to the accompanying drawings.

That is, the present invention is a brush cutter for removing short weeds that have grown on the ground surface between these ridges F in a field where crops are planted along a plurality of ridges F.
A circular plate 1 is disposed at the tip of a rod-shaped operation shaft 2 so that the plate 1 can be rotated by a power source, and at least a plurality of protrusions 3 and 3 are formed on the lower surface of the plate 1. While molding along the radial line,
A guard member 4 is covered on the upper surface side of the plate body 1, and the guard member 4 is suspended from a fan-shaped support lid 41 attached to the operation shaft 2 and a peripheral arc edge of the support lid 41. Consists of a curved protective wall 42 and
The guard member 4 is provided with the protective wall 42 at a predetermined interval outside the peripheral edge of the plate body 1, and at least one radial edge of the support lid 41 and the operation Cover and fix so that the angle made with the shaft 2 becomes an obtuse angle,
The plate body 1 rotates and the projections 3 scrape the ground surface so that weeds can be removed, and the protective wall 42 prevents contact of the outer peripheral edge of the plate body 1 and scattering of pebbles. By adopting the means, we have completed a low grass mower.

  Further, in order to solve the above problems, the present invention forms the projections 3 along a plurality of radial lines in addition to the above means as necessary, and alternately arranges the projections 3 on adjacent radial lines. It is also possible to adopt a technical means of forming and forming alternating circular orbit regions on concentric circles corresponding to the formation positions.

  Furthermore, in order to solve the above-described problems, the present invention employs technical means in which the protrusions 3 are made of a reinforced fiber material that can be elastically deformed in addition to the above-described means as necessary.

In the present invention, a circular plate body is disposed at the tip of a rod-shaped operation shaft so that the plate body can be rotated by a power source, and at least a plurality of protrusions are provided on the lower surface of the plate body with a radius. While forming along the line, the upper surface side of the plate body is covered with a guard member, and the guard member is mounted from the fan-shaped support lid attached to the operation shaft and the peripheral arc edge of the support lid. And a guard-shaped protective wall that hangs down. The guard member is disposed at a predetermined interval outside the peripheral edge of the plate body, and the protective wall is disposed at a predetermined interval, and at least the support lid. By covering and fixing so that the angle formed between one radial end edge portion and the operation shaft becomes an obtuse angle,
Weeds can be removed by rotating the plate body and rubbing the projections on the ground surface, and contact of the outer peripheral edge of the plate body and scattering of pebbles can be prevented by the protective wall.

  Therefore, by using the low-grass brush cutter of the present invention, even when weeding in a narrow field passage, crops are not damaged and low-weight weeds are reliably removed. Therefore, it can be said that there is a high practical utility value.

1 is an overall perspective view illustrating a brush cutter according to an embodiment of the present invention. It is a perspective view showing the board of the brush cutter of the embodiment of the present invention. It is an explanatory front view showing the board of the brush cutter of the embodiment of the present invention. It is a partial top view showing the brush cutter of embodiment of this invention. It is a partial side view showing the brush cutter of embodiment of this invention. It is explanatory side view showing the use condition of the brush cutter of embodiment of this invention. It is explanatory side view showing the use condition of the brush cutter of embodiment of this invention. It is a whole perspective view showing the use condition of the brush cutter of the embodiment of the present invention. It is an explanatory front view showing the modification of the plate of the brush cutter of the embodiment of the present invention. It is a partial top view showing the modification of the brush cutter of embodiment of this invention.

  The mode for carrying out the present invention will be described in more detail with reference to the drawings specifically illustrated as follows.

  An embodiment of the present invention will be described with reference to FIGS. In the figure, what is indicated by reference numeral 1 is a plate body, and this plate body 1 is formed of a hard material such as metal or ceramics in a circular shape, and an attachment hole is provided at substantially the center.

  Also, what is indicated by reference numeral 2 is an operation shaft, and this operation shaft 2 is a pipe-like longitudinal member, and a rotating shaft, wiring, etc. can be inserted into the pipe.

  Furthermore, what is indicated by reference numeral 3 is a protrusion, and this protrusion 3 is a rod-shaped member having a required rigidity, and a material such as metal, plastic, or ceramics can be used. In this embodiment, It can be made of an elastically deformable reinforcing fiber material (for example, polyamide).

  What is indicated by reference numeral 4 is a guard member, and this guard member 4 is composed of a fan-shaped support lid 41 and a curved protective wall 42 depending from the peripheral arc edge of the support lid 41. Yes.

  Thus, the present invention removes short weeds that have grown on the ground surface between these ridges F in a field where a crop C (green onion in this embodiment) is planted along a plurality of ridges F. In order to configure the brush cutter, the circular plate 1 is first disposed at the tip of the rod-shaped operation shaft 2 (see FIG. 1). The plate 1 can be rotated by a power source. As this power source, an electromagnetic motor, a fuel engine, or the like can be employed.

  And at least several protrusion 3 * 3 ... is shape | molded on the lower surface of this board 1 along a radial line (refer FIG. 2). In the present embodiment, the protrusions 3 are formed along a plurality of radial lines, and the protrusions 3 are alternately formed on adjacent radial lines, and the circular orbits are staggered on concentric circles corresponding to the formation positions. Regions are formed (see FIG. 3).

  By doing so, weeds can be prevented from getting entangled with the protrusions 3, and it can be prevented that they bite into the soil more than necessary and pebbles are splashed off, so that weeds can be cut efficiently. In the present embodiment, these protrusions 3 are implanted and fixed to the plate body 1.

  The upper surface side of the plate 1 is covered with the guard member 4, and a support lid 41 of the guard member 4 is attached to the tip of the operation shaft 2.

  As shown in FIGS. 4 and 5, the guard member 4 is provided with the protective wall 42 disposed at a predetermined interval outside the peripheral edge of the plate body 1, and the support lid Covering and fixing is performed such that an angle α formed by at least one radial end edge of 41 and the operation shaft 2 becomes an obtuse angle. In the present embodiment, only the right side is obtuse.

  Then, as shown in FIGS. 6 to 8, the plate body 1 is rotated and the projections 3 scrape the ground surface so that weeds can be removed, and the protective wall of the guard member 4 arranged as described above. By 42, the outer peripheral edge of the plate 1 rotating at high speed can be prevented from accidentally coming into contact with the crop, and pebbles can be prevented from being scattered by the protrusions 3.

  The present invention is generally configured as described above. However, the present invention is not limited to the illustrated embodiment, and various modifications can be made within the description of “claims of utility model registration”. For example, The protrusion 3 may be arranged on a radial line equally divided into three as shown in FIG.

  Moreover, as shown in FIG. 10, the shape of the guard member 4 may be covered with an obtuse angle with respect to the left and right sides, both of which belong to the technical scope of the present invention.

1 Plate 2 Operation shaft 3 Projection 4 Guard member
41 Support lid
42 Protective wall M Power source F 畝 C Crop

Claims (3)

In a field where crops are planted along a plurality of reeds F, a brush cutter for removing short weeds growing on the ground surface between these reeds F,
A circular plate 1 is disposed at the tip of a rod-shaped operation shaft 2, the plate 1 can be rotated by a power source, and at least a plurality of protrusions 3, 3. Is molded along the radial line,
A guard member 4 is covered on the upper surface side of the plate body 1, and the guard member 4 is suspended from a fan-shaped support lid 41 attached to the operation shaft 2 and a peripheral arc edge of the support lid 41. And a curved protective wall 42
The guard member 4 has the protective wall 42 disposed at a predetermined interval outside the peripheral edge of the plate 1, and at least one radial edge of the support lid 41 and the operation shaft. 2 is covered and fixed so that the angle formed by 2 becomes an obtuse angle,
The plate body 1 rotates and the projections 3 scrape the ground surface to remove weeds, and the protective wall 42 prevents contact of the outer peripheral edge of the plate body 1 and scattering of pebbles. A low-grass brush cutter. The protrusions 3 are formed along a plurality of radial lines, and the protrusions 3 are alternately formed on adjacent radial lines.
2. The low-grass brush cutter according to claim 1, wherein alternate circular orbit regions are formed on concentric circles corresponding to the formation positions.   3. The bush cutter according to claim 1 or 2, wherein the protrusions 3 are made of an elastically deformable reinforcing fiber material.