JPH0214331Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention is an agricultural reaping device that is attached to the front lower part of a combine harvester or a reaper and is used for reaping planted stems. The present invention relates to an agricultural reaping device that is composed of a blade and a movable blade, and the movable blade is divided into left and right parts and reciprocates in opposite directions.

[Conventional technology]

In recent years, there has been a demand for higher efficiency in combine harvesters, reapers, etc., and along with this, the speed of reaping devices has also increased. Conventionally, this type of reaping device
Generally, there are many models that consist of one fixed blade and one movable blade, and this movable blade moves back and forth from side to side.In these types, the blade simply moves back and forth at high speed. However, the vibration caused by the reciprocating motion became large, causing various problems.

Therefore, it has been proposed that the movable blade is divided into left and right sides, and the divided movable blades are reciprocated in opposite directions to suppress the generation of vibration.

However, in the conventional type, as shown in FIG. 4, the inner end surfaces of the two divided movable blades 4A, 4B are formed in a plane 9 perpendicular to the reciprocating direction of the movable blades 4A, 4B. The soil 8 scraped up by the reciprocating motion of the movable blades 4A, 4B is transferred to the movable blades 4A, 4B.
The soil adheres to the inner end surface of the movable blades 4A and 4B, causing impact and noise when the soil gets caught near the inward stroke ends of the movable blades 4A and 4B, and inhibits the movement of the movable blades 4A and 4B to the inward stroke ends. Various new problems arose, including deformation and damage to the drive system.

[Problem that the invention attempts to solve]

This invention focuses on these conventional drawbacks, and actively utilizes the movement of the split movable blade to discharge soil that is about to be raked to the front and rear of the reaping device, thereby eliminating the drawbacks caused by soil adhesion. It is an attempt to wipe out the

[Means for solving problems]

In order to achieve this object, the agricultural reaping device according to the present invention is characterized in that the inner end surface of at least one of the split movable blades is formed into an inclined surface that faces obliquely with respect to the reciprocating direction of the split movable blades. .

[Effect]

Therefore, when the two split movable blades move toward each other, due to the action of the slope, the soil to be raked is subjected to a component force that tends to move toward the front or rear of the reaping device, or both. acts. Then, the soil is reliably discharged by that force.

[Effect of idea]

In this way, since the soil is actively discharged using the movement of the split movable blades, the structure is simple, just by tilting the inner end surface of at least one of the split movable blades. It is possible to reliably prevent soil from adhering to the end face of the split movable blade, eliminate vibrations and noise that occur in connection with this, and improve the durability of the movable blade.

〔Example〕

FIG. 1 shows a reaping device installed at the lower front of a combine harvester (not shown), and this reaping device is composed of a fixed blade 3 and a movable blade 4 located between pipes 2A and 2B of left and right dividers. There is. The fixed blade 3 consists of left and right divided fixed blades 3A, 3B and a central fixed blade 3C.
B is fixed to the fuselage, and the central fixed blade 3C, which is approximately twice the size of each of the divided fixed blades 3A and 3B, is fixed to the pipe 2C of the central divider. The movable blade 4 is also divided into left and right parts, and each divided movable blade 4A, 4B has a knife head 5.
A, 5B are engaged with swinging arms 6A, 6B that swing back and forth, and as a result, each divided movable blade 4A, 4B
They are configured to reciprocate on the fixed blade 3 in opposite directions. And both split movable blade 4
The inner end surfaces of the split movable blades 4A and 4B are formed into inclined surfaces 7 that are inclined with respect to the reciprocating direction of the split movable blades 4A and 4B so that the rear side is directed outward.

Therefore, when reaping the stem culm to be planted by reciprocating both the split movable blades 4A and 4B in mutually opposite directions, the soil 8 that is about to be scraped to the center by the split movable blades 4A and 4B. Due to the action of the inclined surface 7, a force directed toward the rear acts on the body, and the body is forcibly discharged to the rear.

[Another example]

FIG. 3 shows another embodiment, in which the inner end surfaces of both split movable blades 4A, 4B are formed into an inclined surface 7 that faces inward toward the rear.
It is configured so that the soil 8 that is about to be raked to the center is discharged forward.

In addition, in each embodiment, both split movable blades 4
Although the sloped surface 7 is formed on both the inner end surfaces of the split movable blades 4A and 4B, it is also possible to form the sloped surface 7 only on the inner end surface of either one of the split movable blades 4A, 4B. .

[Brief explanation of the drawing]

Figures 1 to 3 show an embodiment of the agricultural reaping device according to the present invention, with Figure 1 being an overall plan view, Figure 2 being an enlarged plan view of the main parts, and Figure 3 showing another embodiment. FIG. 4 is an enlarged plan view of the main parts showing a conventional structure. 3... Fixed blade, 4... Movable blade, 4A, 4B... Split movable blade, 7... Slanted surface.

Claims (1)

[Scope of utility model registration request] Consisting of a fixed blade 3 and a movable blade 4, the movable blade 4
In an agricultural reaping device that is divided into left and right parts and reciprocates in mutually opposite directions, the two divided movable blades 4
An agricultural reaping device in which the inner end surface of at least one of the movable split blades 4A and 4B is formed into an inclined surface 7 that faces diagonally with respect to the reciprocating direction of the split movable blades 4A and 4B.