JPS5854780B2 - automatic reaping machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention performs automatic follow-up reaping forward travel along a row of planted stem culms, and then automatically returns backward along a row of stumps or uncut adjacent planted stem culms. This relates to a reaper configured to temporarily differentiate the propulsion forces of the left and right traveling devices at the initial stage of forward movement to produce the ability to move toward the starting end of adjacent planted stem culm rows. The purpose is to improve.

Embodiments of the present invention will be described in detail below with reference to illustrative drawings.

1 and 2 show a side view and a schematic plan view of a reaping and binding machine (binder) as an example of the reaping and harvesting machine of the present invention,
A reaping section 1 consisting of a lifting device 1, a pulling frame 2, a reaping device 3, a horizontal conveyance device 4, a binding device 5, etc. is provided at the front of the machine, and a pair of left and right running wheels is installed behind the reaping section. A mission case 8 equipped with (traveling devices) 7a and 7b, an engine 9, a control handle 10, etc. are provided.

In front of the pulling device 1, a stem culm abutment guide 11 is pivotally extended to prevent the planted stem culm to be reaped from escaping to the right outside. A guide 12 is fixed to the inner side of the frame 2 for slidingly supporting the base of a planted stem culm introduced between the lifting device 1 and the lifting frame 20.

Furthermore, a backward movement guide 14 is attached to the engine frame 13 at the rear of the aircraft, which slides into contact with the stump from the left and right when moving backward, and a sensor 15 which swings back and forth when it comes into contact with an uncut planted stem culm is installed in the left lateral direction. It is prominently supported by.

The sensor 15 is urged to a neutral position n projecting laterally outwardly, and is connected to a governor (not shown) of the engine 9 via a sensor cam 22, a cam fore 23, and a release wire 24, as shown in FIG. are connected,
Due to the contact with the planted stem culm, the engine rotational speed is maximized when the plant is in the forward leaning position f, and the engine rotational speed is sequentially reduced in the order of the backward leaning attitude r and the neutral attitude n. The cam 22 is set accordingly.

Further, the running wheels 7a and 7b are operated by a gear shift operation lever 16.
This operation switches the gear transmission in the mission case 8 to enable forward and reverse speed change, and a constant rotation angle is provided between the left wheel 7a and the axle 17.

The transmission case 8 is also equipped with a forward/reverse switching device 19 which includes an electric motor 1B capable of forward and reverse rotation, which automatically switches the operating lever 16 between the forward mowing position and the reverse position. 18 is configured to be controlled to be driven in forward and reverse directions based on changes in the contact state between the planted stem culm and a sensor 20 which is pivotably mounted on the pulling frame 2 so as to be swingable back and forth.

The sensor 20 is energized to a neutral posture n projecting laterally outwardly, and changes from a backward leaning posture r to a neutral posture n;
and a change from the forward leaning posture f to the neutral posture n are electrically detected and determined, and these detection results are transmitted to the control circuit of the electric motor 18.

Moreover, between the lifting device 1 and the pulling frame 2, there is a device for detecting the presence or absence of a stem culm, which is pressed and swung backward when it comes into contact with a planted culm, and when the contact is released, swings back forward. A sensor 21 is disposed, and power is transmitted to the reaping section based on the operation of the sensor 21 to detect the presence of a stem culm.
The structure is such that power is transmitted to the reaping section based on the detection of the absence of a stem culm.

Next, the automatic reaping operation will be sequentially explained.

(B) Forward travel for reaping (see Figure 4) When the gear change operation lever 16 is set to the forward position and the machine is directed toward the outermost planted stem row A, the lower surface of the reaping part comes into sliding contact with the field. In this state, due to the contact guidance action of the left and right guides 11 and 12, the machine body lifts the stem culm row A and lifts the frame 2 and the lifting device 1.
It moves forward while guiding you to the introduction route between the two.

Then, the reaping section is driven by the operation of the stem culm presence detection sensor 21, and automatic reaping travel is performed.

Also, at this time, the sensor 20 assumes a backward tilted posture r due to contact with the adjacent planted stem culm row B.

(O backward return travel (see Figure 4)) When the cutting of the stem culm row A is completed and the machine protrudes an appropriate distance forward from the end of the adjacent planted stem culm row B, the sensor 20 detects the stalk culm row. B comes off the final end stock b' and swings back to the neutral position n, and this operation is detected, and the electric motor 1
8 is driven in the reverse direction, and the shift operating lever 16 is switched from the forward position to the reverse position.

When switched to the reverse state as described above, the reverse guide 1
40 guidance, the aircraft automatically moves backward and returns along stump row C.

During this backward movement, the sensor 15 detects the stem culm row B.
Since the forward tilted attitude f occurs due to the contact with the mower, the engine rotational speed is increased to the maximum, and the reverse speed is faster than the forward speed for mowing, so that the reaping speed returns quickly.

During this backward movement, the sensor 21 detects the absence of a stem culm, so that the drive of the reaping part is cut off, and the sensor 20 also assumes a forward tilted posture f due to contact with the stem culm row B.

(c) Forward switching operation (see Figure 4) When the aircraft moves backward and crosses the end (starting end) of the stem culm row B, the sensor 20 comes off from the rearmost stem and takes a neutral position.
When this operation is detected, the electric motor 18 is driven to rotate forward, and accordingly, the speed change operating lever 16 is switched from the reverse position to the forward position.

2) Forward steering operation (see Fig. 4) When the switch is made from reverse to forward, the aircraft leans slightly backwards as shown by the imaginary line in Fig. 1 due to the reaction from the reversal of the direction of travel, and the left wheel 7a In order to accommodate the axle 17, it is stopped for a certain period of time, and only the right wheel 7b is driven forward, and the aircraft is moved forward along with the left side.

Then, the guide 11 catches the stem culm row B from the outside, pulls up the stem culm row B, and introduces it between the device 1 and the lifting frame 2.

In this case, the sensor 15 at the rear of the fuselage has come out of contact with the stem culm and has returned to the neutral attitude n, so the engine rotational speed is the lowest, and therefore even when turning by only the right wheel 7b. The wheels 7b do not slip, and the wheels 7b are reliably aligned at a predetermined angle.

When the rotation is completed and straight forward movement is performed, the sensor 15 comes into contact with the next adjacent planted stem culm row and assumes a backward tilted posture r, so the engine rotational speed is increased and the plant becomes suitable for reaping. Return to forward speed.

The one-cycle operations A to II explained above are repeated in sequence to perform unmanned reaping work.

As explained in the embodiments above, the present invention performs forward reaping motion along a row of planted stems and culms, and then automatically returns to a backward position along a row of stumps or a row of adjacent uncut planted stems. In a reaper configured to temporarily differentiate the propulsion forces of the left and right traveling devices at the beginning of the forward movement of the reaper to create a circular movement toward the starting end of the adjacent planted stem row, the reaper is configured to temporarily differentiate the propulsive forces of the left and right traveling devices at the beginning of the forward movement of the reaper. A sensor for detecting the presence or absence of a stem culm is provided, and the operating speed of the traveling device is automatically and reversibly reduced based on the detection result of the presence or absence of a stem culm by this sensor. This makes it possible to automatically operate the traveling device at low speed during the initial forward rotation to ensure reliable rotation without slipping, and also to automatically increase the traveling device during forward movement for mowing. It has become possible to perform mowing work quickly and efficiently.

Furthermore, the speed-up from the deceleration at the beginning of forward movement to the speed-up during normal reaping forward movement is done based on the presence or absence of planted stems and culms detected by sensors, and the deceleration state is maintained until the rounding is completed and the state of reaping progress is reached. Therefore, the timing of speed increase can always be determined accurately.

[Brief explanation of drawings]

The drawings illustrate embodiments of the automatic reaping machine according to the present invention,
FIG. 1 is an overall side view, FIG. 2 is an overall plan view, FIG. 3 is a plan view of an automatic acceleration/deceleration sensor, and FIG. 4 is a schematic plan view showing sequential operation. 7a, 7b... Travel device, 15... Sensor A... Planted stem culm row, B... Uncut adjacent planted stem culm row, C・・・・・・Stump row.

Claims (1)

[Scope of Claims] 1 After performing automatic follow-up reaping forward travel along planted stem culm row A, automatic backward return along stump row C or uncut adjacent planted stem culm row B, and then proceed to the next forward movement. In a reaping machine configured to temporarily give a difference in the propulsion force of the left and right traveling devices 7a and 7b at an initial stage to cause them to move toward the starting end of the adjacent planted stem culm row B, there is no uncut material on the lateral side of the machine body. A sensor 15 for detecting the presence or absence of an adjacent stem culm is provided, and the operating speed of the traveling devices 7a and 7b is automatically and reversibly reduced based on the detection result of the presence or absence of a stem culm by the sensor 15. An automatic reaping machine characterized by: 2. The automatic reaping machine according to claim 1, wherein the sensor 15 is provided at the rear of the machine body.