JP2587623Y2 - Cover body of straw cutter in combine harvester - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cover provided on a casing of a straw cutter mounted on a combine.

[0002]

2. Description of the Related Art In general, in a combine equipped with a straw cutter covered with a casing at the rear part of the fuselage, switching of a switching plate provided at a straw supply port of the straw cutter is performed.
Switch between the cutter operation that supplies the straw conveyed by the straw chain to the straw cutter and the dropper operation that discharges the straw as it is outside the machine. In the case of inspection and maintenance work, the straw cutter is used. It is known that the whole can be deployed toward the tip side. In such a straw cutter, the tip side and the base side of the transported straw are covered with a casing side plate for safety of operation.

[0003]

However, since the waste straw to be transported has a length depending on field conditions, when the long straw is transported, the tip of the straw comes into contact with the casing side plate, and the transport attitude is disturbed. In some cases, it may not be possible to smoothly supply to the straw cutter. In addition, during the dropper operation, since the straw whose transporting posture is disturbed is discharged as it is, there is a problem that it takes time and labor for post-processing of the straw. Therefore, there has been proposed a case in which an opening / closing lid that rotates vertically is provided on a side plate of the casing so that the opening / closing lid is opened during a dropper operation or the like. If the cutter is inadvertently deployed, there is a problem that the opening / closing lid projecting sideways may come into contact with the fuselage and be damaged. The present invention has been conceived to solve the above-mentioned problems, and can surely prevent the transport posture of the transported straw from being disturbed. It is an object of the present invention to provide a cover body of a straw cutter in a combine harvester in which there is no fear that the protruding cover body may be damaged due to contact with the fuselage side even when it is deployed.

[0004]

In order to solve the above-mentioned problems, a technical measure taken by the present invention is to deploy a straw cutter covered by a casing at the rear of the fuselage toward a tip of the straw. In the combine mounted on the casing side plate, an opening is formed at the tip side of the straw transport path of the casing side plate, and the cover body that opens and closes the opening can be turned outward with the body side as the axis. It is characterized by having.

[0005]

According to the present invention, when long straw is conveyed toward the straw cutter, the spike side of the straw pushes open the rotatable cover body, and the casing side plate of the straw conveyance path is the spike side. The part opens. Therefore, the conveying posture of the conveyed straw is not disturbed. And when the straw cutter is deployed for inspection and maintenance work, even if the open cover abuts on the machine side, no excessive force acts on the cover body that rotates around the machine side as the axis. Since it is pushed back to close the opening, no damage occurs to the cover body and the body side.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a rear perspective view of the combine, and a straw cutter 3 covered with a casing 2 is attached to a rear portion of the traveling body 1. Reference numeral 4 denotes a straw chain that transports the straw a after the threshing process to the straw cutter 3 side. The straw chain 4 is provided at a rear end of the machine from a transport end of a feed chain (not shown) provided in the threshing unit. It is inclined toward. Reference numeral 5 denotes a switching plate for switching between a cutter operation and a dropper operation. The switching plate 5 is rotatable up and down around a rear end edge as a support shaft. If the discharged straw a is dropped into the supply port of the straw cutter 3 and rotated downward, the transported straw a
Is discharged to the rear of the fuselage through the upper surface of the switching plate 5 as it is. Inside the casing 2, a disk-type cutter 6 having a number of rotating blades arranged side by side is installed in the left-right direction. Is done. 7 is a straw cutter 3
And 8 is a transmission gear.

[0009] Reference numerals 9 and 9 denote side plates of the casing 2, and a straw conveyance path A is formed between the side plates 9 and 9. An opening 10 is formed corresponding to the tip side of the waste straw a. 11 is a cover body for opening and closing the opening 9,
The cover body 11 is rotatable outwardly with an end edge on the machine body side as an axis. That is, as shown in FIGS. 5 to 7, a rotating shaft 12 is provided on the body-side edge of the cover body 11, and the rotating shaft 12 is rotated by a bearing member 13 provided at a corner of the straw cutter 3. It is pivotally supported. A disc spring 14 is interposed between the rotating shaft 12 and the bearing member 13, and the cover body 11 is fixed by the sliding resistance of the disc spring 14 at any position where the cover body 11 is rotated. It has become. 15 is a magnet.

The straw cutter 3 is pivotally supported by a support shaft 16 provided at the tip of the rear end of the fuselage, so that the entire straw cutter 3 can be deployed to the tip of the tip during inspection and maintenance work. It has become. Reference numeral 17 denotes a vertical pipe of the grain discharge auger, the lower end of the vertical pipe 17 is connected to a horizontal pipe 18 extending from the grain tank, and the upper end of the vertical pipe 17 is connected to a grain discharge pipe 19. In addition, the helical body provided inside these pipes lifts and transports the grains from the grain tank and discharges the grains outside the machine.

In the above-described configuration, the straw a after threshing is conveyed to the straw cutter 3 by the straw chain 4, and the switching operation of the switching plate 5 supplies the straw a to the straw cutter 3. , It can be switched to the dropper operation to discharge it directly to the rear of the aircraft. Then, when the long straw is conveyed, the tip side of the straw a contacts the cover body 11 and pushes outward to open, and the cover body 11 is
, The opening 10 of the side plate 9 remains open. For this reason, since the spout side of the straw a passes through the opening 10, the transport posture is not disturbed, and the cutter operation or the dropper operation can be performed smoothly. The cover body 11 may be rotated outward in advance. On the other hand, when the entire straw cutter 3 is unfolded to the spike side to perform inspection and maintenance work, as shown in FIG. 3, even if the rotating cover body 11 comes into contact with the The cover body 11 which is turned by the turning shaft 12 is immediately pushed back, and the opening 10 of the side plate 9 is opened.
To the closing position. For this reason, no excessive force acts on the cover body 11, so that no damage occurs to the cover body 11 or the body side.

[0010]

In summary, the present invention is a combine harvester in which a straw cutter covered with a casing is attached to the rear part of the fuselage so as to be deployable in the direction of the spike of the straw. An opening is formed at the tip side and the cover that opens and closes the opening is rotatable outward with the body side as the axis. Even when long straw is transported, the spike tip side of the waste straw pushes open the cover body and the spike portion passes through the opening of the opened casing side plate,
There is no disturbance in the straw posture, so that the straw processing such as the cutter operation or the dropper operation can be performed orderly. Then, when the straw cutter is deployed for inspection and maintenance work, even if the rotating cover body comes into contact with the machine body side, the cover body rotating about the machine body axis is immediately pushed back. As a result, the cover is returned to the position where the opening is closed, so that no excessive force is applied to the cover, so that it is possible to reliably prevent the cover and the body from being damaged.

[Brief description of the drawings]

FIG. 1 is a rear perspective view of a combine.

FIG. 2 is a side view of a straw cutter.

FIG. 3 is a plan view of the same.

FIG. 4 is a rear view of the same.

FIG. 5 is a rear view of a main part.

FIG. 6 is a side view of the same.

FIG. 7 is a plan view of the same.

[Explanation of symbols]

 2 casing 3 straw cutter 9 casing side plate 10 opening 11 cover

Claims (1)

(57) [Scope of request for utility model registration] 1. A combine in which a straw cutter covered with a casing is mounted on the rear part of the fuselage so as to be deployable in the spike side of the straw, and an opening is formed in a spout side portion of the straw transport path of the casing side plate. A cover body for a straw cutter in a combine, wherein the cover body that opens and closes the opening is rotatable outward with the body side as an axis.