JP2017225370A - Tillage unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To customize an existing tillage machine.SOLUTION: A tillage unit includes rotating blades and is attached to a tillage machine. The tillage unit includes a rotor having: a rotation shaft at one edge fixed at an edge of a shaft to which the blades are fixed; and a plurality of blades having a smaller distance between the blade and the rotation shaft from the one edge toward the other edge. The rotor is attached to an existing tillage machine and thereby the existing machine can be customized according to a user's demand.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a tillage unit.

  The cultivator mainly has a function of plowing soil and a function of removing weeds and the like. By using a cultivator, it is possible to efficiently cultivate the soil in the field and remove the weeds. In this type of cultivator, the blade attached to the rotating shaft has the above function.

  The cultivator is mainly used for tillage of almost flat soil. Therefore, the soil cultivated by the blade is mainly limited to the soil below the cultivator. Therefore, the conventional cultivator is unsuitable for plowing or weeding soil such as a field in which a number of ridges are formed. Thus, a tiller suitable for tilling between the straws has been proposed. (For example, see Patent Document 1)

JP 2007-143510 A

  According to the apparatus disclosed in Patent Document 1, there is an advantage that the side of the ridge can be cultivated. However, in the above apparatus, it is difficult for a tiller user to customize the size and size of the blade.

  The present invention has been made under the circumstances described above, and an object thereof is to customize an existing cultivator according to a user's request.

  In order to solve the above-described problem, the tillage unit according to the present embodiment is a tillage unit for attaching to a tiller having a rotating blade, and one end is fixed to an end of a shaft to which the blade is fixed. A rotor including a rotation shaft and a plurality of blades provided so that a distance from the rotation shaft toward the other end decreases.

  According to the present invention, an existing tiller can be customized according to a user's request by attaching a rotor to an existing tiller.

It is a perspective view of the rotor which concerns on this embodiment. It is a perspective view of the leveling board used with a rotor. It is a figure which shows the cultivator before a weeding unit is attached. It is a figure which shows the cultivator after the weeding unit is attached. It is a figure which shows the rotor fixed to the shaft of the tiller. It is a figure which shows the leveling board of this embodiment fixed to the existing leveling board. It is the figure which looked at the leveling board 50 of this embodiment fixed to the existing leveling board from the -Y side. It is a figure for demonstrating the effect of the rotor of this embodiment. It is a figure for demonstrating the effect of the leveling board of this embodiment. It is a figure for demonstrating the modification of a rotor. It is a figure for demonstrating the modification of a rotor.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the description of the embodiment, an orthogonal coordinate system including an X axis, a Y axis, and a Z axis that are orthogonal to each other is used as appropriate.

  FIG. 1 is a perspective view of a rotor 10 according to the present embodiment. The rotor 10 is a device mainly for weeding field straw. As shown in FIG. 1, the rotor 10 includes a shaft 20 and three portions of blades 30 and 40 that are respectively fixed to the ends of the shaft 20.

  The axis | shaft 20 consists of metals, such as iron, for example, and is a cylindrical member which makes a longitudinal direction a Z-axis direction. The diameter and length (dimension in the Z-axis direction) of the shaft 20 are defined by the height of the field ridge to be weeded and the size and specifications of the cultivator used for field cultivation.

  The blade 30 is a member fixed to the lower end (−Z side end) of the shaft 20. Similarly to the shaft 20, the blade 30 is a member made of a metal such as iron. The blade 30 includes a Y-shaped support portion 31 fixed to the lower end of the shaft 20 and three blade portions 32 extending upward (+ Z direction) from three ends of the support portion 31. The blade part 32 is formed so that the distance from the shaft 20 becomes shorter as it goes upward. The blade 30 can be formed, for example, by sheet metal processing a metal steel plate having a thickness of several millimeters.

  The blade 40 is a member fixed to the upper end (+ Z side end) of the shaft 20. Similarly to the blade 30, the blade 40 is a member made of a metal such as iron. The blade 40 includes a Y-shaped support portion 41 fixed to the upper end of the shaft 20 and three blade portions 42 extending downward (−Z direction) from the three end portions of the support portion 41. The blade part 42 is formed so that the distance from the shaft 20 becomes longer as it goes downward. Similarly to the blade 30, the blade 40 can also be formed, for example, by subjecting a metal steel plate having a thickness of several millimeters to sheet metal processing.

  The shaft 20 and the blades 30 and 40 are fixed to the lower end of the shaft 20 by welding at the center of the support portion 31 constituting the blade 30, and the center of the support portion 41 constituting the blade 40 at the upper end of the shaft 20. Are integrated by being fixed by welding. Thereby, the rotor 10 is assembled.

  FIG. 2 is a perspective view of the leveling plate 50 used together with the rotor 10. The leveling plate 50 is a rectangular plate-shaped member made of, for example, resin. As shown in FIG. 2, the leveling plate 50 is curved so as to be convex in the + Y direction with a line segment parallel to the X axis as a generating line. In the leveling plate 50, two circular openings 51 are formed.

  The rotor 10 and the leveling board 50 are attached to a tiller as a weeding unit. FIG. 3 is a diagram illustrating the cultivator 100 before the weeding unit is attached. The soil on the traveling path can be cultivated by traveling the cultivator 100 in the direction indicated by the white arrow. The cultivator 100 includes a rotating blade 120 that rotates about a shaft 110 parallel to the X axis, and a leveling plate 130 for leveling the cultivated soil. The user of the cultivator 100 can run the cultivator 100 by operating the handle 101 of the cultivator 100 and rotating the rotary blade 120. Thereby, the soil is cultivated.

  FIG. 4 is a diagram illustrating the cultivator 100 after the weeding unit is attached. As shown in FIG. 4, the rotor 10 described above is fixed to the shaft 110, and the leveling plate 50 is fixed to the existing leveling plate 130.

  FIG. 5 is a view showing the rotor 10 fixed to the shaft 110. As shown in FIG. 10, the rotor 10 is connected to the + X side end of the shaft 110 in a state where the central axis of the shaft 20 and the central axis of the shaft 110 coincide with a straight line L parallel to the X axis. Similarly, the rotor 10 is connected to the −X side end of the shaft 110. The shaft 110 and the rotor 10 are connected by, for example, welding the rotor to the shaft 110.

  FIG. 6 is a view showing the leveling plate 50 fixed to the existing leveling plate 130. The leveling plate 50 is fixed to the leveling plate 130 using bolts 55 or the like inserted into the circular openings 51. FIG. 7 is a view of the leveling plate 50 fixed to the existing leveling plate 130 as viewed from the −Y side. As shown in FIG. 7, the leveling plate 50 fixed to the leveling plate 130 is disposed in an inclined state with respect to the YZ plane.

  As described above, when the cultivator 100 to which the rotor 10 is attached is disposed between the straws in the field, as shown in FIG. 8, the existing rotating blade 120 is located between the straws and The rotor 10 is located. For this reason, when the shaft 110 of the cultivator 100 rotates, the rotary blade 120 cultivates the soil between the ridges and the ridges, and the rotor 10 cultivates the side surfaces of the ridges. As a result, weeding of the side surfaces of the two reeds and the soil between them is performed.

  Further, as shown in FIG. 9, a leveling plate 50 is disposed behind the rotor 10. When the side surface of the ridge is cultivated in the manner described above, the soil is discharged backward by the rotor 10. This soil is prepared along the ridge by the leveling plate 50. Thereby, the soil leveling of the dredging side surface is performed.

  As described above, according to the tillage unit having the rotor 10 and the leveling plate 50 according to the present embodiment, the existing tiller can be customized according to the user's request by attaching the rotor 10 to the existing tiller. can do. At that time, by selecting the rotor 10 having a size corresponding to the arrangement interval of the ridges in the field to be cultivated and the height and shape of the ridges, efficient cultivating according to the cultivated object is possible. In addition, by attaching the leveling plate 50 to an existing cultivator, it is possible to level the side surface of the ridge.

  Although the present embodiment has been described above, the present embodiment is not limited to the above embodiment. For example, in the above embodiment, the case where the blade 30 of the rotor 10 has the three blade portions 32 has been described. Not limited to this, the blade 30 may have two or four or more blade portions. Similarly, the blade 40 may have two or four or more blade portions 42.

  In the above embodiment, the case where the blade 30 and the blade 40 are separated has been described. Not limited to this, as shown in FIG. 10, the rotor 10 may have a blade 45 in which the blade 30 and the blade 40 are integrated.

  In the above embodiment, when the rotor 10 is attached to the shaft 110 of the tiller 100, the rotor 10 is directly welded to the shaft 110. Not limited to this, the rotor 10 may be detachably attached to the shaft 110. For example, as shown in FIG. 11, a screw portion 20 a is provided at one end of the shaft 20 of the rotor 10. In addition, the connection member 48 formed with the female screw portion 48 a that is screwed with the male screw portion 20 a is welded to the shaft 110. When the rotor 10 is mounted on the shaft 110, the rotor 10 is fixed to the shaft 110 by screwing the rotor 10 into the connection member 48. In this manner, if the rotor 10 is detachably mounted on the shaft 110, various rotors 10 can be used properly according to the state of the field.

  As mentioned above, although embodiment of this invention was described, these embodiment is shown as an example and is not intending limiting the range of invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 10 Rotor 20 Shaft 20a Male thread part 30,40,45 Blade 31,41 Support part 32,42 Blade part 48 Connection member 48a Female thread part 50 Leveling board 51 Circular opening 55 Bolt 100 Tiller 101 Handle 110 Shaft 120 Rotary blade 130 Leveling plate

Claims (5)

A tillage unit for mounting on a tiller having a rotating blade,
One end is a rotating shaft fixed to the end of the shaft to which the blade is fixed, and
A plurality of blades provided so that a distance from the rotation shaft decreases from the one end toward the other end;
A tillage unit having a rotor comprising:   The tillage unit according to claim 1, wherein the plurality of blades are arranged at equal intervals along a circle centered on the rotation axis. The blade is
A first blade supported by a first support provided at one end of the rotating shaft;
A second blade supported by a second support provided at the other end of the rotating shaft;
The tillage unit according to claim 1 or 2. With respect to the rotor, disposed behind the tiller in the direction of travel,
The tillage unit according to any one of claims 1 to 3, further comprising a leveling plate provided so that a distance from the rotation shaft increases from one end of the rotor toward the other end.   The tillage unit according to claim 4, wherein the tillage unit is attached to an existing leveling board of the tiller.

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