JP3058408B2 - Bean cutter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bean-cutting machine for soybeans, red beans, kinto beans and the like, and more particularly, to an anti-entrapment structure for preventing entrainment of cut beans.

[0002]

2. Description of the Related Art Conventionally, a bean mower is provided with a divider made up of a plurality of rods and plates at a forward end in a traveling direction. Slant from the root and remove the beans planted on the adjacent ridge where the stalks and branches are intertwined,
The rotary cutting blade cuts the beans to be cut from their roots, and is guided by the divider so as to be aligned in the direction perpendicular to the ridges and lie down. The rotary cutting blade 3
As shown in FIG. 4, a support shaft 13 is connected to the center of rotation for driving and rotating in a slightly downward inclined state in the traveling direction. Then, the beans X are cut while being driven and rotated in the direction in which the stem x is pushed back.

[0003]

By the way, the stem x of the beans X that is inclined in the direction perpendicular to the ridges by the divider 2 is supported by a support shaft.
It is mainly cut off at the blade portion 3 closer to the advancing side than 13.
As a result, the stem x root portion mowed on the upper surface 3 ′ of the rotary cutting blade near the advancing side of the support shaft 13 immediately after the mowing is in a state of lying down, and as a result, the adjacent ridge is rotated by the friction rotational force with the rotary mowing blade 3. Both branches and sheaths are transported in the direction and are entangled with the plurality of divider-constituting rods 12 or are caught in the gap between the plate-shaped divider and the rotary cutting blade, causing cutting of the stem and damage to the sheath. As a result, the value of the product is lowered, and the rows of trimmings in the direction perpendicular to the ridges are not aligned, so that the recovery by the grain shredding machine becomes uncertain.

[0004] The present invention has been made in view of the conventional circumstances, and a technical problem thereof is to provide means for preventing entrainment of cut beans.

[0005]

According to a first aspect of the present invention, there is provided a bean having a rotary cutting blade provided at a rear portion of the divider so as to intersect with the divider in plan view. The gist of the present invention is that a mowing machine is provided with a rotary roll that is driven in reverse rotation with respect to the rotary cutting blade, near a position above the upper surface of the rotary cutting blade closer to the traveling direction than the spindle of the rotary cutting blade. A second aspect of the present invention is that the rotary roll according to the first aspect has a smooth circumferential surface.

According to the above technical means, the following effects are obtained. (Claim 1) In this bean mower, immediately after cutting, the root portion lies on the upper surface portion of the rotary cutting blade, which is closer to the advancing side of the spindle, and is transported in the adjacent ridge direction by the frictional force with the upper surface of the rotary cutting blade. A frictional return force is applied to the root portion of the beans to be reversed by the driving rotation of the rotating roll, and the beans are aligned in a direction orthogonal to the ridges by the guide function of the divider. (Claim 2) The bean mower has a smooth peripheral side surface. Even with this smooth surface, a rotating roller that rotates at high speed can provide a friction return force. In addition, the adhesion of foreign matter that impacts on the pods of beans such as dust and mud is suppressed.

[0007]

Next, an embodiment of the present invention will be described with reference to the drawings. The drawings show a bean mower of the present embodiment. Symbol A is a bean-cutter.

The bean mower A has a front part of a body 1 on which a driving source for driving (not shown), a transmission mechanism for driving wheels a (not shown), a cab (not shown) and the like are mounted. Rows 10 at lower left and right
The left and right dividers 2 and 2 are provided at intervals of 0 and in the front-rear direction with a front-rear space longer than 100 ridges. Installed. That is, the cutting time of the two ridges 100, 100 is changed back and forth so that the cut beans X
However, it is designed so that they do not form a relationship of reclining with each other.

In the present embodiment, the divider 2 is of a known type constructed by assembling a plurality of rods 12.
It is attached to the front of the body 1.

[0010] As shown in FIG.
The support shaft 13 is inserted from a gear box 15 integrally fixed to the front mounting bracket 5 into a first guide cylinder 25 which is vertically inclined rearward with a slight inclination angle, and the support shaft 13 is connected to the gear box 15. Inside the vehicle 1 connected to the drive shaft 11 via the joint body 35 so that the beans X
Is driven to rotate in a direction to push back the stem x of the stalk.

At a position close to a position above the upper surface 3 'of the rotary cutting blade 3 closer to the traveling direction than the support shaft 13 of the rotary cutting blade 3, a rotary roll 4 driven to rotate in the reverse direction to the rotary cutting blade 3 is supported. It is arranged parallel to the shaft 13.

As shown in FIG. 3, the rotary roll 4 has a smooth circumferential surface, that is, a circular cross-sectional shape without irregularities, and a support shaft 14 which is parallel to the first guide cylinder 25. Inserted through the second guide cylinder 45 hanging from the gear box 15,
Spur gears 6 and 6 meshing with each other coaxially secured to the end of the support shaft 13 of the rotary cutting blade 3 and the end of the support shaft 14 in the gear box 15.
, And reversely rotates at high speed in synchronization with the rotary cutting blade 3. This reverse rotation is a rotation in a direction (see FIG. 3) in which the root portion of the stem x of the beans X to be cut is pushed back in the traveling direction (see FIG. 3), and immediately after the cutting, the upper surface 3 ′ of the rotary cutting blade 3 closer to the traveling side. The root portion of the stem x lies on the portion, and a pushing force can be applied to the root portion of the stem x which is to be transferred in the direction of the adjacent ridge 100 by friction with the upper surface 3 '.

Thus, the beans X after being cut off that are to be caught are smoothly aligned in the direction perpendicular to the ridges 100 by the guide function of the divider 2.

[0014]

According to the present invention, as described above, immediately after mowing, the spindle rests on the upper surface of the rotary mowing blade near the advancing side of the spindle and is transferred in the direction of the adjacent ridge by friction with the upper surface of the rotary mowing blade. The rotating roll gives a friction return force to the root of the beans by the reverse rotation of the rotating cutting blade, so that the beans are caught in the gap between the plate-shaped divider and the rotating cutting blade, and are entangled with multiple divider component rods Or not. For this reason, it is possible to reliably recover the product by a grain-removing machine without damaging the sheath or the like and lowering the commercial value, and without trimming rows in a direction orthogonal to the ridges. Moreover, as a result of the side peripheral surface of the rotating roll being made smooth, the adhesion of foreign matter that gives a large impact to beans and the like such as dust and mud is also suppressed, and the sheath of the beans and the like at the time of removing the divider is removed. Gentle touch to the sheath can be maintained even when contact is made by mistake.

[Brief description of the drawings]

FIG. 1 is a perspective view of a bean mower of the present embodiment, showing a main part.

FIG. 2 is a schematic plan view showing a cutting state.

FIG. 3 is an enlarged perspective view showing a rotary cutting blade and a rotary roll, partially cut away.

FIG. 4 is a perspective view of a conventional rotary cutting blade.

[Explanation of symbols]

A: Bean cutter 2: Divider 3: Rotary cutting blade 13: Support shaft (support shaft of rotary cutting blade) 4: Rotary roll 14: Support shaft (support shaft of rotary roll)

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A01D 45/22-45/24

Claims (2)

(57) [Claims] 1. A bean-cutting machine having a rotary cutting blade provided in a rear portion of the divider so as to intersect with the divider in a plan view, wherein the upper position of the upper surface of the rotary cutting blade is closer to a traveling direction than a spindle of the rotary cutting blade. A rotary roll driven in reverse rotation with respect to the rotary cutting blade in close proximity to the support shaft and provided in parallel with the support shaft. 2. The bean mower according to claim 1, wherein the rotating roll has a smooth circumferential surface.