JPH0545140Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The present invention consists of a knife bar with a large number of cutting blade units arranged in parallel on the upper part of the receiving blade, which is made up of a number of receiving blade units fixed in parallel on the receiving blade stand. The present invention relates to an agricultural clipper-type reaping device in which a fixed cutting blade is provided so as to be able to slide back and forth from side to side along the receiving blade stand, and is mainly used in a self-retractable combine harvester.

[Conventional technology]

Conventionally, as a reaping device for a self-removing combine harvester,
The cutting blade unit and the receiving blade unit each having a plate-like structure are often used (see, for example, Japanese Utility Model Application Publication No. 62-53621).

[Problem that the invention attempts to solve]

In the above conventional structure, the knife clip is pressed at an appropriate position from the upper side of the cutting blade to prevent the cutting blade unit from floating upward, but the width of the blade to be pressed by the knife clip is It is a small part of the total width of the blade, and it may go into the ridges of the cutting blade during reaping work, or it may change over time due to the force of the stem culm getting in between the cutting blade and the receiving blade after many years of reaping work. As a result, the cutting blade unit floats upward, creating a gap between the cutting blade unit and the cutting part of the stem culm, resulting in a reduction in sharpness and damage.

As a way to solve the above problem, for example,
As seen in Publication No. 60-33831, a blade receiving structure (for example, as shown in Fig. 3) has an open slit formed in the upper front surface of the front part to allow the cutting blade to pass from side to side, which is used in a full-culm input type combine harvester. It was thought that the reaping device of a self-retracting type combine could be used for the reaping device of a self-retracting type combine, but in the reaping device of a full-culm input type combine, the mounting pitch of the receiving blade unit was long and the reciprocating stroke of the cutting blade was also large. The noise and vibrations were so great that it was impossible to put it into practical use with a relatively small and lightweight self-extracting combine harvester. Therefore, by shortening the pitch, noise and vibration can be reduced and the problem of the cutting blade unit being lifted can be suppressed, but the tip of the receiving blade unit, which is a fixed object and projects forward, is thick. Because the spacing is narrow, weeds and the like tend to get caught and accumulate during the cutting process, which is difficult in practice.

The present invention aims to eliminate the above-mentioned drawbacks, improve cutting performance and durability, and suppress trapping and retention of weeds as much as possible.

[Means for solving problems]

The present invention is characterized in that, in the agricultural clipper type reaping device having the above configuration, the receiving blade has a first receiving blade unit having a plate-like structure, and a rearward opening on the front upper surface that allows the cutting blade unit to pass from side to side. A second slit with a shape of
The second receiving blade units are arranged at predetermined intervals, and their functions and effects are as follows.

[Effect]

When the cutting blade is reciprocatingly slidably driven from side to side, it enters the slit of the second receiving blade unit, so that lifting upward can be suppressed, and there is no risk of deterioration of sharpness or damage. Even if weeds get caught on the tip of the blade unit, the weeds that fold over will be efficiently removed by the adjacent first receiving blade unit and the cutting blade unit, which have a plate-like structure. Since it can be cut, weeds are less likely to accumulate.

[Effect of idea]

Therefore, it was possible to improve durability by suppressing lifting of the cutting blade unit, and to improve cutting performance by suppressing deterioration in sharpness and retention of weeds.

〔Example〕

The clipper-type reaping device A for a combine harvester according to FIGS. 1 and 2 is shown. This reaping device A is installed between frames 1 and 1 for attaching the divider, and is configured to be driven by power from an engine (not shown).

The reaping device A has a blade holder 4 that is long in the lateral direction of the machine body.
The receiving blade 7 is constructed by fixing a large number of receiving blade units 5 in parallel to the lower surface of the machine with bolts 6, and a large number of cutting blade units 9 are fixed to the lower surface of the knife bar 8, which is long in the lateral direction of the machine, by riveting. The cutting blade 10 is constructed by fixing them in parallel. With the upper surface of the receiving blade unit 5 and the lower surface of the cutting blade unit 9 in close contact with each other, the cutting blade 1
A knife head (not shown) is attached to the top surface of the knife bar 8, and this knife head is reciprocated by the power from the engine, and the cutting blade The stem culm can be cut between the receiving blade unit 5 and the cutting blade unit 9 by reciprocatingly sliding the blade 10 left and right.

As shown in FIGS. 2 to 4, the cutting blade units 9 are all plate-shaped, and the receiving blades 7 have a first receiving blade unit 5a having a plate-like structure and a front upper surface thereof. It is composed of a second receiving blade unit 5b in which a rearward open slit 12 is formed to allow the cutting blade unit 9 to pass from side to side. The first receiving blade unit 5a and the second receiving blade unit 5b are alternately arranged side by side, and both left and right ends are each constituted by the first receiving blade unit 5a.

Then, the rear end of the backward cantilevered head portion 13 located above the slit 12 of the second receiving blade unit 5b is overlapped with the front edge of the knife bar 8 from above to form the cutting blade unit 9. It is constructed to prevent floating.

This invention can be applied to various types of agricultural machinery.

Note that although reference numerals are written in the claims section of the utility model registration for convenience of comparison with the drawings, the present invention is not limited to the structure of the attached drawings by such entry.

[Brief explanation of the drawing]

The drawings show an embodiment of the agricultural clipper-type reaping device according to the present invention, in which FIG. 1 is a plan view, FIG. 2 is a front view, FIG. 3 is a cross-sectional view taken along the line - - of FIG. 1, and FIG. 5 is a perspective view of the receiving blade unit. 4...Blade stand, 5...Blade unit, 5a...First blade unit, 5b...Second blade unit, 7...
Receiving blade, 8... Knife bar, 9... Cutting blade unit, 1
0...mower blade, 12...slit.

Claims (1)

[Scope of utility model registration request] A cutting blade 10 consisting of a large number of cutting blade units 9 fixed in parallel to a knife bar 8 is mounted on the upper part of the receiving blade 7 which is formed by fixing a large number of receiving blade units 5 in parallel to the receiving blade stand 4. This is an agricultural clipper-type reaping device that is installed so as to be able to slide reciprocally from side to side along A second receiving blade unit 5 having a rearward open slit 12 that allows the unit 9 to pass from side to side.
An agricultural clipper-type reaping device comprising: b, and in which the second receiving blade units 5b are arranged at predetermined intervals.