JPH1175463A - Clipper-type reaping apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make the culms at the non-cut side hardly cut on a mid-division work and enable the avoiding of the generation of the culms which can not be harvested. SOLUTION: A fixed blade B is fixed on a blade table 2 which is placed over the right and left grass-dividing frames, and a movable blade C is placed in a freely laterally reciprocally slidable state against the fixed blade B. The right and left terminals of the fixed blade B are protruded beyond the grass- dividing frames 1 in the lateral outside directions, and the edges form inclining plains in such a state that the more back sides of the lateral outside edges of the protruding ends are, the more laterally apart the edges are from the grass-dividing frames 1 when viewed in a plain. That is, it has such a structure that as cutting proceeds, the distance between the culms of non-cut sides and the grass-dividing frames 1 in the lateral outside directions becomes larger.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clipper-type reaper in which a fixed blade is fixed to a tool rest erected over right and left weeding frames, and a movable blade is provided so as to be reciprocally slidable left and right with respect to the fixed blade. Related to the device.

[0002]

2. Description of the Related Art In this type of clipper-type reaper, a fixed blade is fixed to a tool rest such that both left and right ends are located on the horizontal inner side of the left and right weeding frames. Are reciprocally slid while alternately slightly protruding both ends of the weeding frame to the lateral outside. When performing the splitting work to cut through the center of the uncut field with a combine equipped with such a clipper-type cutting device, the uncut side planted grain culm approaching the left and right sides of the aircraft, A guide member that guides the uncut side of the culm away from the weeding frame to the outside of the weeding frame due to the problem of cutting with the movable blade that protrudes to the outside of the weeding frame. With the weeding frame,
The problem was avoided.

[0003]

However, according to the above-mentioned conventional construction, the guide member for guiding the planted grain culm is provided separately from the fixed blade, the weeding frame and the like, so that the number of parts is reduced. More and more complicated structures.

An object of the present invention is to simplify the structure by reducing the number of parts while avoiding the problem of cutting the uncut side of the culm.

[0005]

The constitution, operation and effect of the invention according to claim 1 are as follows.

[Structure] In the clipper-type cutting device described at the beginning, the left and right ends of the fixed blade are projected laterally outward from the weeding frame, and the lateral outer edges of the projected end are flat. As viewed from the rear, the rear end side is formed on an inclined surface that is further away from the weeding frame in a laterally outward direction, and the culm on the uncut side is guided by the inclined surface as the mowing is performed. It is configured to keep away from the outside.

[A] [A] When performing a split operation of cutting through the center of an uncut field by using a combine equipped with the clipper-type cutting device having the above-described configuration, the combine approaching the left and right sides of the machine body. The culm on the cutting side is guided by the inclined surfaces formed at the left and right ends of the fixed blade, and moves away from the weeding frame to the laterally outward side, so that the movable blade protrudes to the laterally outward side of the weeding frame. It is hard to be cut.

[B] Since the uncultivated grain culm is guided by inclined surfaces formed on both right and left ends of the fixed blade, the prior art structure provided with a guide member separate from the fixed blade on the weeding frame. In comparison, the number of parts can be reduced.

[Effect] Therefore, it is possible to reduce the number of parts and simplify the structure while avoiding the problem of cutting the uncut side of the culm.

The construction, operation and effect of the invention according to claim 2 are as follows.

[Structure] In the invention according to claim 1,
The fixed blade includes a supporting blade portion attached to the tool post and a folded blade portion located on the opposite side of the sliding blade moving space from the supporting blade portion.

[Function] [C] In addition to providing the same function as the function according to the first aspect of the present invention, the fixed blade has a support blade portion attached to the tool rest and a sliding movement space for the movable blade. Since it is composed of a folded blade part arranged on the opposite side to the supporting blade part with sandwiching it, it is possible to prevent the movable blade from rising from the fixed blade, and to set the grain culm to be cut above the scheduled cutting part It can be received at the upper and lower two places with the lower side, and cut in a state where the grain stalk is difficult to escape.

[Effect] Therefore, in addition to the same effect as the effect of the configuration of the first aspect, it is not necessary to strictly set the gap between the movable blade and the fixed blade by the above operation [C]. However, stable cutting performance can be maintained.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A reaper A mounted on a self-removing combine will be described. As shown in FIG. 1, the reaper A is provided with a tool rest 2 via a plate-like mounting stay 11 over a plurality of weeding frames 1 extending in the longitudinal direction of the machine body, and fixed to the tool rest 2. A blade B and a movable blade C having a plurality of blades 5 attached to the lower surface of the knife bar 4;
The movable blade C is provided on the fixed blade B side and a pair of front and rear guides 7 and 8 are provided.
The front and rear end surfaces of the knife bar 4 are provided so as to slide back and forth with respect to the fixed blade B while being guided separately.

As shown in FIGS. 2 and 3, the mounting stay 11 has one end fixed to the lower surface of the weeding frame 1 with the plate surface facing up and down, and It is fixed to the lower surface, the first half side is formed in a tapered shape, and the lateral side surface is formed as an inclined surface for guiding the grain culm which is located on the inner side in the left-right direction as the tip side.

As shown in FIG. 4, the fixed blade B is configured by mounting a plurality of unit blades 3 on a tool post 2, and each unit blade 3 has a supporting blade portion 3 A mounted on the tool post 2. ,
It comprises a folded blade portion 3B located on the opposite side of the support blade portion 3A with respect to the sliding movement space of the movable blade C. More specifically, the front end of the folded blade portion 3B is overlapped with the front end of the supporting blade portion 3A and riveted, and the folded blade portion 3B is set up so as to maintain a constant distance from the front end side to the supporting blade portion 3A. The rear end extending in a cantilever manner and extending rearward in a cantilever manner is formed integrally with the rear end of the adjacent folded blade portion 3B, and this integrally formed portion (hereinafter referred to as an integrally formed end portion E) ) Is formed on the front guide portion 7 on the front side.
The integrally formed end E and the pair of folded blade portions 3B form an introduction recess F for introducing a grain culm, and the grain culm guided into the introduction recess F is restricted from entering by the integrally formed end E. Is positioned.

As shown in FIGS. 2 and 4, blades 3a and 3b which are cut obliquely are formed at the side ends of the support blade portion 3A and the folded blade portion 3B. Has been improved. Since the supporting blade 3A and the folded blade 3B are required to have toughness, they are both made of tool steel.

As shown in FIGS. 3 and 5, the outermost unit blades 3 of the plurality of unit blades 3, which are located on the left and right end sides of the tool post 2, divide the left and right end portions of the folded blade portion 3B. The projecting portion is formed to project laterally outward from the frame 1, and the lateral outer edge of the projecting end is formed on an inclined surface that is more laterally outward from the grass weeding frame 1 toward the rear end in plan view, and cuts. As a result, the uncut side of the culm is moved away from the weeding frame 1 to the laterally outward side. According to this structure, at the time of the middle splitting work in which the crop is cut through the center of the field in the uncut state, the uncut side culm approaching to the left and right sides of the machine is guided by the inclined surface, and from the weeding frame 1. Since it is kept away from the horizontal outer side, it is less likely to be cut by the movable blade C protruding to the horizontal outer side of the weeding frame 1.

Referring to the movable blade C, FIG.
As shown in FIG. 2, a rear receiving plate 8 for guiding the rear surface of the knife bar 4 in the left-right direction is fixed to the tool post 2 by bolts, and a connecting tool 9 is attached and fixed to one end of the knife bar 4, and the rear surface of the connecting tool 9 is driven. A drive guide portion 9A for receiving a force is formed. A guide wheel 10A is freely rotatably fitted to the drive guide portion 9A. The guide wheel 10A is attached to one end of the crank arm 10, and the crank arm 10 is driven and rotated by the power from the driving portion of the combine. By driving the knife bar 4 together with the blade 9A, the movable blade C is reciprocally driven with a fixed stroke with respect to the fixed blade B. The blade body 5 constituting the movable blade C is required to be tough, and is therefore made of tool steel.

[Brief description of the drawings]

FIG. 1 is a plan view showing a reaper.

FIG. 2 is a longitudinal sectional side view of the reaper.

FIG. 3 is a plan view of the left end of the reaper.

FIG. 4 is a perspective view showing a fixed blade.

FIG. 5 is a longitudinal sectional front view of a movable blade and a fixed blade.

[Explanation of symbols]

 1 Weeding frame 2 Turret 3A Support blade 3B Folding blade B Fixed blade C Movable blade

Claims (2)

[Claims] 1. A clipper-type reaper, comprising: a fixed blade fixed to a tool rest spanned over right and left weeding frames; and a movable blade provided so as to be reciprocally slidable left and right with respect to the fixed blade. The left and right ends of the fixed blade are made to project laterally outward from the weeding frame, and the laterally outer edges of the protruding ends are more laterally outward from the weeding frame toward the rear end in plan view. A clipper-type cutting device formed on a slanted surface and configured so that the uncultivated grain culm is guided by the slanted surface and moves away from the weeding frame to the laterally outward side with the cutting. 2. The fixed blade includes a supporting blade portion attached to the tool post, and a folded blade portion located on a side opposite to the supporting blade portion with respect to a sliding movement space of the movable blade. The clipper-type reaper according to claim 1.