JPS5835647B2 - reaping harvester - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an operating structure for a transmission clutch for disconnecting and disconnecting power transmission to a traveling device in a reaping harvester such as a binder or combine harvester.

During reaping work with a reaping harvester, for example, in the case of a binder, the operator picks up tied stem culms and releases them onto the ridge, or in the case of a combine harvester, the operator replaces bags in the threshed grain bagging section and discharges full bags. There is a risk that the aircraft may not realize that it has reached the end of one stroke and may continue to move forward and hit a ridge or the like.

As a means to solve this problem, it is being considered to equip the aircraft with an automatic steering system that automatically accompanies the aircraft when it reaches the end of one stroke, but this type of automatic steering system
The structure tends to be complicated and expensive.

Therefore, the applicant of the present invention has previously filed the following application as a means to solve such problems.

In other words, the clutch operating tool of the traveling device is constructed so that it can be switched and maintained between an engaged position and a disengaged position by an unstable switching mechanism, and the clutch operating tool is configured to be in a position on the off side of the unstable switching position and capable of transmitting driving force. At the position, the operating tool is configured to be able to be locked and held, and the operating tool is released from the locking part based on the detection result of the absence of a culm of a mechanism that detects the presence or absence of a planted stem culm, and the unstable The unstable switching force of the switching mechanism is used to operate the operating tool to the cut position, and when the machine reaches the end of one stroke, it automatically stops traveling.

The advantage of this prior invention is that by effectively utilizing the switching force of the unstable switching mechanism, the structure is simplified while eliminating the risk of the aircraft hitting a ridge, etc., and automatically switching the aircraft when the stem culm disappears. It is possible to stop the aircraft and wait for the next turning operation, and the operator can perform the various recovery operations mentioned above at the same time as the aircraft is running, which can be expected to improve work efficiency.

An object of the present invention is to further improve the invention of the prior application and to improve its usability in terms of operation.

That is, in the above-mentioned prior invention, after the operator confirms that the presence/absence detection mechanism of the planted stem culm has detected the presence of the planted stem culm, the operator moves the operating tool to a position closer to the cutting side than the unstable switching dead center. It was configured so that it was locked and held.

Therefore, it is not possible to run the reaping harvester by locking and holding the operating tool at a position closer to the cutting side than the dead center even before entering the stem culm row, and the machine automatically operates by detecting the presence or absence of the stem culm. In order to stop the machine, as mentioned above, there is a drawback that the operating tool of the traveling device must be operated again after the machine enters the culm row.

Therefore, the present invention has the following technical means.

An operating tool for turning on and off a power transmission clutch for discontinuing power transmission to the traveling device is configured to switch unstably between an on position and an off position, and the operating tool is moved to the off side from the dead point of unstable switching. A locking mechanism that locks and fixes at a position corresponding to the clutch engaged operation range is provided and biased toward the locking state side, and this locking mechanism is attached to the stem culm of the planted stem culm presence/absence detection mechanism. The locking mechanism and the detection mechanism are interlocked and connected via a one-way interlocking mechanism so that the locking mechanism is switched to the unlocking side only in conjunction with switching from the presence detection state to the stem culm absence detection state.

The effects of the present invention with the above configuration are as follows.

In other words, we created an easy-to-use reaping harvester that automatically stops traveling when the machine reaches the end of one stroke, allowing the operator to efficiently perform various tasks other than operating the machine without having to pay much attention to operating the machine. Of course, this can be achieved with a simple structure, and in particular, according to the present invention, the mechanism for detecting the presence or absence of a planted stem culm and the locking mechanism biased toward the locking side are interlocked and connected via a one-way interlocking mechanism. The setting of the operating tool for the locking mechanism to the clutch engagement position during reaping and harvesting is independent of the presence/absence detection mechanism of planted stems and culms, and in other words, it can be performed even on headlands where there are no planted stems and culms. This has the advantage that it can be used conveniently without the hassle of entering the planted stem culm row and confirming the presence of the planted stem culm before setting it.

Next, embodiments of the present invention will be described based on the drawings.

The figure shows a rear engine 1, a driving transmission case 2 to which power is transmitted from the engine 1, a control handle 3 extending rearward, etc., and a reaping pre-processing section 4 connected to the front part of the main body. A walking binder is shown.

Then, this binder is moved along a single stem culm row in which the body is planted using a pair of left and right running wheels 5, 5 as a running device which are pivotally supported by the running mission case 2. In the reaping pre-processing section 4, the planted stem culm is pulled up using a pulling device 6 installed obliquely at the front part and the base end of the plant is harvested, and then the cut stem culm is moved along the guide cover 7 to the side of the machine. Conveyed to one side and fed into the binding device 8, bundled in appropriate amounts,
It is configured to release the tied stem culm to the side and outside of the fuselage.

Power is transmitted from the engine 1 to the traveling transmission case 2 by a wound transmission belt 9, and as shown in FIG. A tension pulley 11 pivotally attached to the tip of the tension pulley 10 is disposed opposite to each other, and a transmission clutch 12 is configured to connect and disconnect power transmission by approaching and separating the tension pulley 11.

This transmission clutch 12 not only intermittents power transmission to the traveling transmission case 2 to switch the traveling wheels 5, 5 between a traveling state and a traveling stopped state, but also transmits power from the traveling mission case 2. It is configured as a main clutch that switches the transmission to the reaping pre-processing section 4 between an operating state and a non-operating state by intermittent transmission to the reaping pre-processing section 4, and the side where the swinging arm 10 moves away from the belt 9 by a spring. The clutch is always in a disengaged state.

Power is transmitted from the traveling transmission case 2 to the reaping pre-processing section 4 via a transmission belt 13, and opposite to the transmission belt 13 is a swing arm 14 as shown in FIG. A reaping latch 16 is constructed which is important for transmitting power by the approach and separation of a tension pulley 15 which is pivotally supported at the tip of the tension pulley 15 and swings toward and away from each other.

Further, the swing arm 14 is located on the side of the lifting device 6.
The planted stem culm is pivoted so as to be able to change its posture between a posture in which it protrudes in response to a lateral force across the stem culm introduction path A formed along the side, and a posture in which it swings backwards due to contact with the planted stem culm. The presence/absence detection mechanism and the fo swing sensor 17 are interlocked and connected via a link mechanism 18, and the link mechanism 18 is attached by a spring 19 to maintain the swing sensor 17 in an attitude in which it always projects to the side force. Forced.

Therefore, the reaping latch 16 is configured to be an automatic clutch so that it is always in the clutch disengaged state and is in the engaged state only when a planted stem culm is present as the swing sensor 17 swings backward.

The operating handle 3 is equipped with an operating tool 21 that is rotatably supported on a support shaft 20 that is laterally supported on the operating handle 3 and can swing back and forth. 21 and the support shaft 20 are provided with a pivot portion around the front-rear axis X, so that the operating tool 21 is configured to be swingable in the lateral direction as well.

In addition, first rotating members 2 are provided on both lateral sides of the operating tool 21.
2 and a second rotating member 23 are rotatably supported on the support shaft 20.

The first rotating member 22 connects the rotating member 22 to the transmission clutch 12 via a C-shaped link 24 and a wire 25.
An unstable switching mechanism 2 that is interlocked and connected to a swinging arm 14 of
A cutout groove 22' is formed which is operatively connected to the transmission clutch 12 via a groove 6 and into which the operating tool 21 is engaged when the operating tool 21 is swung laterally.

A first operating mechanism is configured to switch the transmission clutch 12 to an engaged state by swinging the operating tool 21 forward in a state in which the operating tool 21 is engaged in the engagement groove 22', In addition, the operating tool 21 for turning on and off the transmission clutch 12 is held in the entry side position and the release side position (via the unstable switching mechanism 2).

The second rotating member 23 is provided with an engagement receiving piece 27 with an engagement receiving portion 27', and is formed with an engagement groove 23' into which the operating tool 21 is engaged by swinging laterally. has been done.

A swinging engagement piece 28 biased by a spring 28' is provided opposite the engagement receiving piece 27.

Then, by swinging the operating tool 21 in the lateral direction, the engaging groove 22' and the engaging groove 23' of the first rotating member 22 are rotated.
A second operating mechanism is configured that swings the operating tool 21 forward to switch the transmission clutch 12 to the engaged state in a state in which the transmission clutch 12 is engaged half by half. , when the operating tool 21 is operated to a position closer to the switching side than the unstable switching dead center P of the unstable switching mechanism 26 and within the clutch engagement operation range, the engagement receiving piece 27 and A locking mechanism 29 is configured which locks and fixes the operating tool 21 in this operating position by engagement with the engaging piece 28.

The engagement piece 28 of the lock mechanism 29 is connected to the link mechanism 1.
This is attached to the protrusion 18' which is integrally connected to 8.

The swinging piece 3o is interlocked and connected via a wire 31 to the swinging piece 3o, which is arranged so as to be able to come into contact only within a certain range of the intermediate part of the moving range of the link mechanism 18. The k string is biased to be located in the posture, and the lateral force of the rocking sensor 17 causes it to protrude backward from the posture.
As the swinging posture changes, the swinging piece 30 moves to the projecting piece 18.
Even if the wire 31 is loosened, the swinging motion of the swinging piece 30 is not transmitted to the engaging piece 28, and the swinging motion of the swinging sensor 17 toward the rear is affected by lateral force. One-way interlocking that transmits the swinging motion of the swinging piece 30 to the engaging piece 28 via the wire 31 when the swinging piece 30 comes into contact with the protrusion piece 18' as it changes its protruding position. A mechanism 33 is configured, whereby the locking mechanism 29 is linked only to the switching of the swing sensor 17 from the state of detecting the presence of a stem culm protruding to the rear to the state of detecting the absence of a stem culm protruding to a lateral force, The engaging piece 28 is moved away from the engaging receiving piece 27 and is configured to be switched to the unlocking side.

The operating tool 21 is inserted and guided by a guide frame 34, and the guide frame 34 has a groove a for guiding the operating tool 21 in the first operating mechanism and a groove a for guiding the operating tool 21 in the second operating mechanism. The guiding groove is cut out.

The guide frame 34 has an engagement piece 28 of the lock mechanism 29.
A locking piece 35 for locking is provided so as to be freely inserted and movable.

This locking piece 35 suppresses and moves the engagement piece 28 to the side away from the engagement receiving piece 27 along the inclined sieve S of the protruding end when the locking piece 35 is moved to a position where it largely protrudes into the guide frame 34. , is used to constantly switch the lock mechanism 29 to the released state.

Further, the front part of the machine is equipped with a guide tool 36 for automatically following the machine to the planted stem culm row. By moving the lever along the planted stem culm line, the machine body is configured to be able to automatically follow and move along the planted stem culm line.

Further, a feed belt 38 is disposed on the side of the binding device 8 facing the lateral outside of the machine body, and is driven by power transmitted from the binding device 8 via a transmission case 37.

Then, the tied stem culms are sent rearward using the rice feeding belt 38, and after the tied stem culms are supported by the deck 39 and the backrest plate 40 to accommodate an appropriate amount of bundles, the backrest plate 40 is artificially moved to the side at an appropriate time. It is configured to swing in the direction to eject the stored bundle out of the machine.

In addition, in the figure, 41 is a wheel that supports the deck 39.

According to the above configuration, when the aircraft is traveling on a road or the like, by operating the operating tool 21 via the first operating mechanism, the transmission clutch 12 can be operated to a desired state.

In addition, in the reaping and harvesting work, the operating tool 21 is operated via the second operating mechanism, and the clutch engagement side position is held by the locking mechanism 29, and the swing sensor 17 is brought into contact with the planted stem culm and rearwards. As the state shifts from a swinging position to a position protruding into a lateral force at the end of one stroke, etc., the locking mechanism 29 is released, the operating tool 21 moves to the disengaged position, and the transmission clutch 12 is automatically disengaged. The aircraft will then stop automatically.

Therefore, during this reaping and harvesting work, the guide tool 36 is passed between adjacent stalk culm rows, and the machine moves while automatically moving along the stalk culm rows to perform the reaping and harvesting work. , the operator can perform tasks such as arranging the tied stem culms, picking them up and releasing them onto the ridge without paying attention to the operation to stop the aircraft when it reaches the planted stem culm row. It is.

In the embodiment, the swing sensor 17 serving as the stem culm presence/absence detection mechanism also turns on and off the reaping latch 16, but the stem culm presence/absence detection mechanism 11 and the locking mechanism 2 are simply
9 may be interlocked with each other via the one-way interlocking mechanism 33 to implement the present invention.

Furthermore, in the embodiment, the operating tool 21 is operated via the first operating mechanism for on-road driving and the second operating mechanism corresponding to the present invention, but only the second operating mechanism corresponding to the present invention is operated. It may be implemented in a form that has.

[Brief explanation of the drawing]

The drawings show an embodiment of the reaping and harvesting machine according to the present invention, FIG. 1 is a plan view of the binder, FIG. 2 is an exploded view showing the transmission clutch operation structure, and FIG. 3 is a longitudinal sectional front view of the operating tool mounting part. FIG. 4 is a sectional view taken along the line IV-IV in FIG. 3, and FIG. 5 is a back muscle diagram showing the tied stem culm release structure. 5.5... Travel device, 12... Transmission clutch, 17... Planted stem culm presence/absence detection mechanism, 21
......Operation tool, l"...Lock mechanism, Dan"! ...One-way interlocking mechanism.

Claims (1)

[Claims] 1 Transmission clutch 1 for intermittent power transmission to traveling devices 5, 5
The operating tool 21, which is used for important operation of the switch 2, is configured to maintain unstable switching between the on position and the off position, and the operating tool 21 is placed in a position closer to the turning side than the dead center of unstable switching and when the clutch is engaged. A locking mechanism 29 that locks and fixes at a position corresponding to the operating range is biased toward the locking state, and this locking mechanism 29 is moved from the stem culm presence detection state of the planted stem culm presence detection mechanism 17 to the stem culm presence detection state. The reaping method is characterized in that the locking mechanism 29 and the detection mechanism 17 are interlocked and connected via a one-way interlocking mechanism 33 so that the locking mechanism 29 and the detection mechanism 17 are switched to the unlocking side only in conjunction with the switching to the culm absence detection state. harvesting machine.