JPH0525383Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The invention consists of two movable blades that are arranged in parallel in the lateral direction of the machine body, superimposed into one fixed blade, and driven back and forth in opposite directions. The present invention relates to a clipper-type reaping device for agricultural machinery that is configured to.

[Prior Art] As a reaping device configured as described above, for example, there is one shown in Japanese Utility Model Application Publication No. 61-60622, and in this reaping device, the driving directions of the respective movable blades are opposite Therefore, vibrations during driving are canceled out, resulting in low noise and low vibration of the reaping device.

[Problem that the invention attempts to solve]

Also, considering the reaping device cited in the above reference, this reaping device has a fixed blade configuration in which the inner end blade of each movable blade acts so that each movable blade is driven inward at the same timing. If the unit is set to the same blade width as other structural units, the front apex of the movable blade structural unit located at the inner end cannot be overlapped with the fixed blade structural unit, resulting in poor cutting of the stem culm. Therefore, as shown in Fig. 4, the fixed blade structural unit 2, on which the internal end structural units 4, 4 of the movable blade act, is made larger and placed in front of the movable blade respective structural units 4, 4. It is also possible to overlap the apexes 4t, 4t with the fixed blade component 2, but if the reaping device is configured in this way, the front and rear dimensions of the enlarged component 2 will increase, so when it comes into contact with the ground, , this structural unit is easily damaged and there is room for improvement.

An object of the present invention is to construct a reaping device that is not easily damaged even when it comes into contact with the ground, and is also not likely to cause poor cutting of stem culms, through reasonable modification.

[Means for solving the problems] The present invention is characterized by the following features in the reaping device having the above configuration:
The shape of the fixed blade structural unit on which the movable blade structural unit inside the body of each movable blade acts is set to a scalene triangle with the front and rear dimensions equal to those of other fixed blade structural units and the left and right side dimensions different. , with each movable blade reaching its inner stroke end, the front apex of the fixed blade structural unit and the front apex of the movable blade structural unit at the inner end of the movable blade on the short side side overlap each other; , and the front apex of the fixed blade structural unit and the front apex of the movable blade structural unit at the inner end of the movable blade on the long side side are set so as not to overlap,
Further, a reaped stem and culm conveying mechanism having a cross-feeding function outward from a long side is disposed behind the fixed blade structural unit, and its functions and effects are as follows.

[Effect]

If the above characteristics are configured as shown in FIG. 1, for example, the shape of the fixed blade component 2 on which the movable blade components 4, 4 inside the machine body of the respective movable blades B and B act will be set as shown in the figure. , and when each of the movable blades B, B has reached the inner stroke end as shown in FIG. 4t
Since the fixed blade structural unit 2 and the fixed blade structural unit 2 overlap, there is no possibility of cutting the stem culm in this area, and on the long side 2b of the fixed blade structural unit 2, the cut stem culm conveying mechanism 5 Therefore, since a feeding force is applied outward to the stem culm, this stem culm is pressed against the movable blade unit 4 on this side, and as a result, it is cut well.

Furthermore, even when the reaping device comes into contact with the ground, the movable blades B, B, and fixed blade A each have no forward protruding portion, so that the force upon contact with the ground can be received over a wide range.

[Effect of idea]

Therefore, by setting the shape of the fixed blade constituent unit and arranging the reaping stem culm conveying mechanism, a reaping device that is less likely to be damaged even when it comes into contact with the ground and less likely to cause defective cutting of the stem culm can be configured. It was done.

〔Example〕

Hereinafter, embodiments of the present invention will be described based on the drawings.

Figures 1 to 3 show a clipper-type reaping device installed in a combine harvester, and this reaping device is installed in large numbers on a blade stand 1 arranged in the left-right direction of the machine body (not shown). Fixed blade constituent unit 2...
It consists of one fixed blade A, which is connected by riveting, and two movable blades B, B, which are placed overlappingly on the upper surface of this fixed blade A. It also consists of a large number of movable blade structural units 4 connected to this knife bar 3 by rivets.

Additionally, this reaping device is configured to reduce vibration and noise by being equipped with a drive system (not shown) that reciprocates the movable blades B and B in opposite directions. To prevent damage to the fixed blade A and movable blades B and B, the structural units 2
..., 4..., 4... to approximately match the amount of forward protrusion,
In addition, the structure is such that no protrusion is formed.

In other words, the movable blade constituent units 4..., 4... of the respective movable blades B, B are all formed in the same shape, and
The shape of the fixed blade structural unit 2 on which the movable blade structural units 4, 4 at the end of the body of the respective movable blades B, B act is such that the front and rear dimensions are equal to the other structural units 2, and the left and right sides 2a, 2b. The fixed blade structural unit 2 is set to have a scalene triangle shape with different dimensions, and with each movable blade B reaching the inner stroke end.
The front apex 2t of the movable blade structural unit 4 at the inner end of the movable blade on the short side 2a side substantially overlaps, and the front apex 2t of the fixed blade structural unit 2, It is set so as not to overlap with the front apex 4t of the movable blade constituent unit 4 on the side of the long side 2b, and furthermore, at the rear of the fixed blade constituent unit 2, there is a wall extending outward from the long side 2b. By disposing the reaped stem culm conveying mechanism 5 having a cross-feeding function towards the
Stem culm (not shown) introduced into this long side 2b
is pressed against this side of the movable blade structural unit 2 by the feeding action from the reaped stem culm conveying mechanism 5, so that it can be cut well.

As shown in FIG. 1, the reaped culm conveying mechanism 5 is configured in a packer type and is arranged in plural pieces, each of which is driven and rotated in the direction shown by the arrow.
The support frame 1 also has a movable blade B and a fixed blade A.
A plurality of plate members 6 are provided to press against the side, and
Each movable blade B, B has an engagement arm 7 for being driven.
is formed.

[Another Embodiment] In addition to the embodiments described above, the present invention may be applied to, for example, a binder, and the reaped stem and culm conveying mechanism may be of any configuration such as a belt type or a chain type.

[Brief explanation of drawings]

The drawings show an embodiment of the clipper-type reaping device for agricultural machinery according to the present invention, and FIG. 1 is a plan view showing the reaping device and the conveyance mechanism, and FIG. 2 is a plan view showing the movable blade reaching the inner stroke end. 3 are sectional views of the reaping device, and FIG. 4 is a plan view showing a comparative example of the reaping device. 2...Fixed blade constituent unit, 2a, 2b...Side sides,
2t...Vertex, 4...Movable blade constituent unit, 4t...
Apex, 5... Reaped stem culm conveyance mechanism, A... Fixed blade,
B...Movable blade.

Claims (1)

[Scope of utility model registration request] A clipper-type reaping device for agricultural machinery in which two movable blades B, B are arranged in parallel in the lateral direction of the machine body, superimposed on one fixed blade A, and are configured to reciprocate in opposite directions. Then, each movable blade B, B
The shape of the fixed blade structural unit 2 on which the movable blade structural units 4, 4 at the end of the body of the machine act is the same as the front and rear dimensions of the other fixed blade structural units 2, and the dimensions of the left and right sides 2a, 2b are different. Along with setting it to an equilateral triangle,
When the respective movable blades B and B have reached their inner stroke ends, the front apex 2t of the fixed blade structural unit 2 and the movable blade structural unit 4 at the inner end of the movable blade on the side of the short side 2a. The front vertex 4t overlaps,
and a front apex 2t of the fixed blade constituent unit 2;
The inner end of the movable blade on the side of the long side 2b is set so as not to overlap with the front apex 4t of the movable blade constituent unit 4, and a A clipper-type reaping device for an agricultural machine in which a reaped stem and culm conveying mechanism 5 having a lateral feed function in the direction is arranged.