JPS58841B2 - Automatic forward/backward switching type reaping machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention uses a reaping machine such as a binder or combine to automate reaping work in a reciprocating mode. The present invention relates to a reaping machine that automatically switches forward and backward movement, which is configured to move the reaping trace backwards based on the detection of the end of the row of planted stem culms.

In this type of reaping machine that automatically switches forward and backward, the performance of straight-line movement along the row of planted stem culms, especially the quality of straight-line performance when moving backwards, greatly influences the results of automatic reaping work. If the machine meanders left and right when moving backwards, it may not only cause damage to the planted stem culms, such as catching or pushing them down, but also cause damage to the cutting start end of the row of planted stems to be harvested next time. On the other hand, the backward movement stop position becomes uncertain in the left and right directions, which may hinder the next reaping operation due to forward movement.

Therefore, in such a conventional automatic reaping machine that automatically switches forward and backward movement, a fixed guide that comes into contact with the planted stem culms of the next row to be harvested and guides the forward and backward movement of the machine along this planted stem culm row. However, in this case, for example, a sensor is provided that comes into contact with the planted stem culm to detect the displacement of the aircraft in the left and right lateral directions with respect to the planted stem culm row, and based on the detection results by this sensor, By steering the aircraft, it has the advantage of being mechanically simpler and easier to construct at a lower cost than when the aircraft moves forward and backward along the row of planted stems by correcting the direction of movement of the aircraft. However, when guiding the aircraft with a fixed guide,
Since a lateral load equivalent to the meandering force of the aircraft body acts on the planted stem culm, damage to the planted stem culm, such as pushing down or breaking the planted stem culm due to the guide, cannot be eliminated, and as a result, the aircraft body It has the disadvantage that it cannot reliably and accurately guide the forward and backward movement of the vehicle.

In this way, with fixed guides that guide the forward and backward movement of the aircraft along the row of planted stalks, it is still difficult to move the aircraft along the row of planted stalks while ensuring safety for the planted stalks. Nothing had been developed that could reliably and accurately guide the aircraft.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an inductive type device using a fixed guide that can meet the above-mentioned needs.

The automatic forward/reverse switching type reaping machine according to the present invention, as explained at the beginning, has a rear position of the wheels when the machine body is in a forward moving state.
A stump guide is provided that guides the machine forward and backward along the stump through a pair of guide members located opposite to each other on the left and right sides of the stump after reaping, and of the pair of guide members of the stump guide, the machine is in the backward movement state. At the time when the machine switches to the forward state and turns to go toward the end of the planted stem culm row, the guide member on the side that moves close to the stump is moved to its position at the end in the forward direction of the machine. The device is characterized in that it is configured such that the period guide function is reduced or canceled.

That is, according to the present invention, the stump, which is short in height and can strongly withstand lateral loads, is used to guide the forward and backward movement of the aircraft, thereby ensuring safety for the planted stem culms. It is possible to reliably and accurately guide the forward and backward movement of the aircraft,
Further, there is an advantage that the rear side of the aircraft around the wheels due to inertia caused by switching from the backward state to the forward state can be prevented by the ground support action of the stump guide.

Moreover, according to the present invention, when the machine body is switched from the backward state to the forward state and is turned to face the end of the row of planted stems in the method, the guide action that guides the forward and backward movement is reduced or canceled. Therefore, this turning can be performed smoothly and reliably with little resistance, and the desired automatic reaping action can be ensured.

Therefore, the present invention uses a fixed guide type that ensures a strong and good guiding function, while also improving the performance of turning the body toward the end of the planted stem culm row.
As a whole, it has been possible to provide a reaping machine that automatically switches forward and backward movement, which can reliably, accurately, and safely perform automatic reaping work in a reciprocating mode.

Hereinafter, a walking binder l showing an embodiment of the present invention will be described.
To explain this using an example, a reaping binding section 4 and an engine section 5 are disposed in front and rear positions of a pair of left and right running wheels 1, 1, and a grounding bridge 6 attached to the reaping binding section 4 is arranged.
In the walking type binder ejector, which is configured to stably support the machine body in a reaping posture with the wheels 1, 1, the stump B after reaping is placed at the rear position of the wheels 1, 1 when the machine is in a forward moving state. A bridge-like stump guide 2 that guides the forward and backward movement of the machine along the vertical movement is provided so as to be able to freely swing up and down. It is configured so that it can move backward.

In addition, when the aircraft is located at the end of the planted stem and culm row A due to forward movement along the planted stem and culm row A, this is detected and the aircraft is automatically switched from the forward state to the reverse state. When the machine moves backwards along the reaping trace after this switching and is positioned at the end of the planted stem culm row A/ (this is what will be reaped by the next forward movement) of the law, this will be detected. After detection, a mechanism is provided that automatically switches from the backward movement state to the state of forward movement while turning toward the end of the planted stem row A' of the method after continuing backward movement by a certain amount. be.

The stump guide 2 moves a pair of guide members 2A and 2B facing each other on both the left and right sides of the stumps B in the forward direction in a state where they can come into contact with both left and right sides of a plurality of stumps B. The front end portion of the stump moving passage 7 formed between the guide members 2A and 2B is formed by supporting the front end portion of the stump moving passage 7 on the fuselage body.
By bending both the front and rear end portions of 2B laterally outward, it is constructed into a trumpet shape.

Detecting the ends of the planted stem culm row A and the ends of the planted stem culm row A' of the law, and switching the forward and backward movement of the machine, and detecting both ends of the planted stem culm row A' of the law. The mechanism for turning it toward the front is pivoted so as to be swingable in the front and rear directions around the vertical axis 8, and is elastically biased to a neutral position protruding from the lateral direction toward the planted stem culm row A' side of the filament. The stem culms at the ends of the planted stem culm rows A and A' are caused by the swinging and tilting posture in the backward direction of movement due to contact with the planted stem culms as the machine moves forward and backward. By elastically returning to the neutral posture based on the absence, the stem culm rows A, A'
The aircraft is configured to automatically operate the aircraft as described above by automatically operating the forward/reverse switching mechanism and the steering mechanism based on the detection operation of this sensor 9. be.

Therefore, in the stump guide 2, the left and right guide members 2A
, 2B, the guide member 2 on the side that moves close to the stump B at the time when the aircraft switches from the backward state to the forward state and turns to face the end of the planted stem row A' of the method. A person is composed as follows.

In other words, the guide member 2A has a smaller number of stumps B than the other guide member 2B, with its terminal end 2a position in the forward direction of the aircraft being located further forward than that of the other guide member 2B.・In order to make contact with the front and rear direction length la
is configured to be shorter than the length 7b in the longitudinal direction of the other guide member 2B, thereby reducing the intended guide function during the aforementioned rotation and reducing the turning resistance due to the guide function. It is composed.

Therefore, in the walk-behind binder J configured in this way, as shown in Fig. 4 A2 and C, the forward mowing movement along the planted stem culm row A and the backward movement along the cutting trace are sequentially performed. In order to repeatedly carry out automatic harvesting and tying work in the desired reciprocating mode, the forward and backward guiding action of the stump guide 2 is sufficient to control the turning direction toward the end of the row of planted stems and culms A in the forward state. It is possible to do this smoothly with little resistance while ensuring that the aircraft rotates backwards around the ground contact area of wheels 1 and 1, which is caused by inertia when switching from reverse to forward mode. This can be prevented by the grounding support effect of the guide 2.

5 to 7 each show another embodiment, and the one shown in FIG. 5 is a stump guide 2 having a pair of guide members 2A, 2B, in which one of the guide members 2A is By greatly bending the end portion 2b outward in the forward direction to form a gap between the end portion 2b and the stump B, the guide function can be reduced.

In other words, by delaying the contact between the terminal end portion 2b and the stump B at the time of starting turning and reducing the turning resistance at the time of starting turning, the turning can be completed by the time the terminal end portion 2b contacts the stump B. The speed is made sufficiently large to make it easier for one guide member 2A to climb over the stump B.

What is shown in FIG. 6 is a stump guide 2 having a pair of guide members 2A and 2B, in which the terminal end portion 2c of one guide member 2A in the forward direction is vertically swung around a horizontal axis 10 into a guiding action position. A spring 11 is provided to swing and bias the end portion 2c to the guide action position, and the end portion 2c is attached in conjunction with the change from the reverse state to the forward state. By switching to the non-working position against the force, the guide function can be reduced at the time of turning as described above.

What is shown in FIG. 7 is a pair of guide members 2A. In the stump guide 2 having a stump guide 2B, the terminal end portion 2d of one guide member 2A in the forward direction is slid back and forth to achieve a guiding action posture and a non-working posture in which the terminal end is positioned forward of that of the other guide member 2B. A spring 12 is provided to move and bias the end portion 2d to the guiding posture, and to move the end portion 2c to resist the urging force in conjunction with switching from the reverse state to the forward state. By switching to a non-operating position, the guide function can be reduced at the time of turning as described above.

The interlocking means shown in FIGS. 6 and 7 is constructed by connecting one end of the wire 13, which is wound up by a speed change motor or a winding tool that is linked to the forward rotation of the axle, to the terminal end portion. can be mentioned.

In carrying out the present invention, the structure is simple if the embodiment or another embodiment shown in FIG. 5 is used.

[Brief explanation of the drawing]

The drawings illustrate an embodiment of the automatic forward/reverse switching type reaping machine according to the present invention, in which Fig. 1 is an overall side view, Fig. 2 is an overall schematic plan view, and Fig. 3 is a vertical cross-sectional rear view of main parts. , Figure 4 A 2 mouths,
C is a diagram of the reaping operation; FIGS. 5, 6, and 7 show different embodiments; FIG. 5 is a plan view of the main part; FIGS.
The figure is an enlarged side view of the main parts. 1...Wheel, 2A, 2B...Guide member, 2...Stump guide.

Claims (1)

[Scope of Claims] After performing reaping while moving forward along one planted stem culm row A, the reaping track is moved backward based on the detection of the end of the planted stem culm row A. In the forward and backward automatic switching type reaper, a pair of guide members 2A are located at the rear of the wheels 1 when the machine is moving forward, and are located opposite to each other on both the left and right sides of the stump B after reaping. A stump guide 2 is provided which guides the forward and backward movement of the aircraft along the stump B through the stump guide 2B, and a pair of guide members 2A of the stump guide 2 are provided.
, 2B, the guide member 2A on the side that moves close to the stump B at the time when the machine switches from the backward state to the forward state and turns to go to the end of the next planted stem culm row A'. . A forward and backward automatic shear change type reaping machine, characterized in that the intended guide function at the end portion of the forward direction of the machine body is reduced or canceled at the above-mentioned time point. 2. The terminal position of the guide member 2A in the forward direction of the aircraft body is
The guide function can be reduced or canceled by providing a difference in the length of the front engagement between the left and right guide members 2A and 2B so that the guide members 2A and 2B are positioned further forward than the other guide member 2B. A reaping machine with automatic forward and backward switching as described in Scope 1. 3. The automatic forward and backward switching type reaping method according to claim 1, wherein the guide function can be reduced by forming a gap between the guide member 2A and the stump B at the time point. Machine.