JPS6149921B1 - - Google Patents

Description

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a plan view of the combine harvester, FIG. 2 is a perspective view of the same, FIG. 3 is a sensing device, FIG. 4 is a front view of the detection section, and FIG.
FIG. 4 is a wiring diagram when FIG. 4 is combined with FIG.

[Detailed description of the invention]

The present invention provides a combine harvester that is provided with a sensing device that senses the location of grain culms, and based on the sensing results of the sensing device, determines the left and right deviation of the machine's traveling direction and corrects the direction. This relates to the installation and shape of the grain culm sensing device.In particular, by making the grain culm always in smooth contact with the sensor from the left and right directions, the location of the grain culm can be reliably sensed, and the sensing This allows the body to constantly perform appropriate sensing over a long period of time, allowing for smooth and reliable direction correction of the aircraft. An embodiment of the present invention will be described below with reference to the drawings. 1 is a weeding board installed in front of the combine machine, which allows the machine to advance while weeding grain culms such as rice and wheat stocks at the tip of the combine. It is arranged like this. Reference numeral 2 denotes a running device for driving the machine, 3 a U-shaped control handle extending diagonally backward from both sides of the machine, and 4 a sensing device, which is located at the tip of the grass divider plate 1 on the unmowed land side of the grass divider plate 1. It is fixed via a bracket 5. The bracket 5 is integrally formed with a sensing body 6 which is pivotally supported at the front end and is swingable in the left and right directions, gradually protruding in both left and right directions from the tip to the rear, and the rear sides are bent to each other. A pinion 7 is pivotally supported on a portion of the sensing body 6 that engages with the inner arcuate pawl, and the pinion 7 and the sensing body 6 are freely operated via the arcuate pawl.
The sensor 6 is provided with a return spring (not shown) on its pivot so that it can always return to a neutral position after being activated by the grain culm. Reference numeral 8 denotes a guide body provided extending from the front to the rear of the sensing body 6, which weeds the stock part of the grain culm with its tip, and protects the sensing body 6 that protrudes from the guide body 8 in both left and right directions. It serves as a guide for rice stocks, wheat stocks, etc. Next, what is shown in Fig. 4 is the detection section, and the indicator panel 9.
A scale is provided on the scale, and pointer 1 is placed on the part corresponding to this scale.
0 is provided, and a device constructed in this way is installed at a required part of the combine operating section, and this has a structure equivalent to a voltmeter, and this detection section is connected to the sensing device shown in Fig. 3. If so, wire as shown in Figure 5. Next, to explain the effect of the present invention, when harvesting is performed by operating the control handle 3 of the combine and inserting the weed dividing plate 1 between the rice or wheat plants, the grain culms such as the rice plants are removed from the combine harvester. The grain culm is distributed to the left and right by the action of the guide body 8 installed at the front of the machine on the uncut land side to guide the grain stalk, and the grain culm comes into contact with the sensing body 6 of the sensing device 4 at the rear of the grain culm. As a result, the sensing body 6 performs an arc movement around the shaft support relative to the outer periphery of the pinion 7, which acts as an adjustment lever with the main body of the resistor, that is, wired as shown in FIG. The pinion 7 is the resistor body, the sensing element 6 is the adjustment lever, and the detection part (Fig. 4) in the control part operates as a voltmeter, moves the pointer 10 on the indicator panel 9, and controls the harvesting direction of the combine. Detects the horizontal deviation of the aircraft relative to the grain culm row. Then, based on the above detection results, the moving direction of the machine body is accurately corrected, and after the direction correction of the machine body is corrected, the grain culm pulling operation and harvesting operations such as reaping and threshing are performed. When the machine moves away from an obstacle such as a rice plant by correcting its traveling direction, the return spring returns it to the neutral position. That is, in the above-mentioned reaping and harvesting work, the grain culm is regulated by the guide body 8 and comes into contact with the sensing body 6 that gradually protrudes from the guide body 8 in both left and right directions, so that the grain culm directly touches the sensing body 6 from the front. There is no possibility that the sensing body 6 will be damaged by coming into contact with the shaft support, or that grain culms will not wrap around the shaft support of the sensing body 6, resulting in malfunction. Furthermore, the contact between the grain culm and the sensing body 6 can be smoothly achieved by the sloped surfaces gradually protruding in both left and right directions from the guide body 8, and the left and right sensing bodies 6 are integrally formed. Therefore, there is no need to provide separate left and right sensing bodies, making manufacturing easy and inexpensive. Moreover, the opposite side of the sensing body 6 that has retreated due to the contact becomes protruded, and even if the rows are partially narrowed, when the grain culm comes into contact with the sensing body 6 on the opposite side, the sensing body 6 can be detected. Since the body 6 immediately returns to a state in which the left and right sides are balanced, proper sensing can always be performed. In this way, the present invention provides a guide body for guiding the grain culm at the front of the fuselage on the uncut land side of the combine, and a guide body for guiding the grain culm is provided at the rear of the guide body to pass between the grain culms guided left and right. At the same time, a sensing device is provided that detects a shift to the left or right in the traveling direction of the aircraft by contacting the grain culm on the left or right side, and the sensing body of the sensing device is swung in the left-right direction at the rear of the guide body. A sensing body is integrally formed, which is freely pivoted, and gradually projects from the guide body in both left and right directions from the tip end to the rear end, and projects in the left and right direction.
Since the configuration is such that the returning spring can always return to the neutral position, the sensing device is provided at the rear of the guide body so that it can swing freely in the left and right directions, so that the grain culms can be distributed to the left and right by the action of the guide body in advance. Since the sensor detects the regulated state, the grain culm may come into direct contact with the shaft of the sensor and damage the sensor, or the grain culm may wrap around the shaft of the sensor and cause the grain to become inoperable. It is possible to use it for a long time without causing defects, and the grain culm is regulated by the guide body and is integrated in a symmetrical shape that gradually protrudes left and right as it goes toward the rear. Since the sensor comes into contact with a sensing body formed in the same manner, the contact with the grain culm is smooth due to its sloped surface, and the operation of the sensing body is also extremely smooth. Further, when the sensing body is separated from the grain culm, the return spring immediately returns it to a position where the left and right sides are balanced, so that proper sensing can always be performed. Furthermore, since the left and right sensing bodies are integrally formed, there is no need to provide separate sensing bodies for the left and right sides, and they can be used alone, which provides many practical effects such as being easy to manufacture and inexpensive. It is.

[Claims]

1. A guide body for guiding grain culms is provided at the front of the machine on the uncut land side of the combine, and at the rear of the guide body, while passing between the grain culms guided left and right, A sensing device is provided that detects a left-right shift in the traveling direction of the aircraft by coming into contact with the right grain culm, and a sensing body of the sensing device is pivotally supported at the rear of the guide body so as to be swingable in the left-right direction, As it goes from the tip to the rear, it gradually protrudes from the guide body in both left and right directions, and a sensing body that protrudes in the left and right direction is integrally formed, and can always be returned to the neutral position by a return spring. A grain culm sensing device in a combine harvester, characterized by comprising: