JP2003333918A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combine harvester effectively and satisfactory carries out a manual feed threshing work. <P>SOLUTION: The combine harvester provided with a reaping part 3 liftably installed by a hydraulic cylinder 4 on a traveling body which is changeable in traveling state and in stopping state by a variable speed motor M2, and a threshing part 5 threshing in pinching and conveying foot parts of reaped grain culms by a feed chain 6, and a travel command switch 30 commanding start and stop of traveling for manual feed threshing work, freely operable from outside of the body, and controls the action of the variable speed motor M2 and the hydraulic cylinder 4 for lifting and lowering so as to lift the reaping part 3 to the height for refuge and starts the travel of the body by a travel start command by the travel command switch 30, stops the travel of the body and lowers the reaping part 3 to the height of manual feed threshing work by the stop command. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a traveling vehicle body which can be switched between a traveling state and a traveling stopped state by means of a traveling state switching means, and is provided with a mowing section which can be raised and lowered by an elevating operation means. The present invention relates to a combine provided with a threshing unit that performs threshing processing while sandwiching and transporting a stock basin side of a cut culm that is cut and transported by a feed chain.

[0002]

2. Description of the Related Art When harvesting planted grain culms in a field, for example, planting grain culms planted on the ridges in the field cannot be harvested manually by combine harvesters. In some cases, the grain culms are cut. And, the hand-cut culms that have been manually cut in this way will be placed along the ridges in an appropriate state in the field scene, but after the cutting work in the field is finished, This is a so-called pillow handling operation in which a hand-cut grain culm is manually inserted toward the threshing section of the combine to perform the threshing process. That is, the traveling vehicle body of the combine is moved to a position where the hand-cut grain culms are juxtaposed, and the hand-cut grain culms are manually put into the starting end portion of the feed chain. In addition, if the cutting unit is raised greatly, the work space for inputting at the start end of the feed chain will be narrowed and it will be difficult to input hand-cut grain culms. In order to secure a large work space for throwing in at the starting end of the and to facilitate the work, the mowing part is lowered to the height for pillow handling, which is a position low enough to approach the ground.

When carrying out the pillow handling work,
While the combine harvester is stopped, the hand-cut culms are manually put into the beginning of the feed chain, but the amount of hand-cut culms is large and it seems that they are juxtaposed over a long distance along the ridges. In such a case, it is a troublesome work to move the long distance and bring the hand-crop to the place where the combine is located, so such a hand-crop should be manually carried for a long distance. In order to reduce the effort, move the traveling vehicle body of the combine a little along the ridges and then insert the hand-cut grain culms, and repeat the movement of the traveling vehicle body and the grain culling as described above. There are things.

At this time, it is possible to perform the work efficiently when the operator performing the steering operation for traveling the vehicle body of the combine and the operator performing the hand-cutting grain culm insertion work are separate. When the combine control operation and the hand cut grain culm insertion work are to be performed by one person, the combine control operation to slightly move the traveling vehicle body along the ridge and the hand cut grain juxtaposed in the field. It is necessary for one operator to repeatedly perform the work of manually inserting the culm into the starting end of the feed chain and one operator must return to the body control section each time the steering operation is performed, which is a troublesome work.

Therefore, in the prior art, in order to enable such a movement of the traveling vehicle body by an operator who manually inserts the hand-cut grain culm without returning to the vehicle body control section of the vehicle body. In addition, for example, a configuration is provided in which a command means for instructing start and stop of traveling is provided at a location near the transport start end of the feed chain so that the traveling vehicle can be efficiently moved. was there.

[0006]

In the above-mentioned conventional structure, an operator who manually inserts the hand-crop culm moves the traveling vehicle body without returning to the vehicle body control section of the vehicle body. However, since the raising / lowering command operation for raising / lowering the reaping section is performed by the vehicle body control section, there is still room for improvement in the following aspects.

That is, when performing the above-mentioned pillow handling work, the traveling vehicle body can be moved by instructing the start of traveling from the outside of the vehicle body by means of the command means that is freely operable. , In order to facilitate the work of inserting the hand-crop culm into the starting end of the feed chain, if the car body is moved while the cutting unit is lowered to the height for pillow handling, As the vehicle body moves and runs, there is a risk that the reaping unit will collide with the ground or plunge into a convex portion of the ground. In particular, in the field after the mowing work is completed, the traveling vehicle body travels for the mowing work, so that the field is often roughened and unevenness is formed on the ground. If the traveling vehicle body is run with the vehicle being maintained at the above position, the posture of the traveling vehicle body may change due to the unevenness of the ground, which may cause the reaper to collide with the ground or plunge into a convex portion of the ground. It becomes big.

Therefore, prior to the start of the traveling of the traveling vehicle body, the traveling vehicle body is moved in a state in which the operator commands the vehicle body control portion of the vehicle body to raise the reaping portion to the evacuation height in advance. By doing so, it is possible to avoid collision of the mowing section with the ground, etc., but if the mowing section is raised to the retracting height in this way, as described above, hand cutting for the starting end of the feed chain is performed. Since it is difficult to do the work of throwing grain culm, when performing the work of throwing hand cut grain culm, in order to lower the cutting unit to the height for pillow handling as described above, In each case, it is necessary to return to the body control section of the vehicle body, which is troublesome and has a disadvantage of lowering work efficiency.

The present invention has been made paying attention to such a point, and an object thereof is to eliminate the above-mentioned disadvantages of the prior art and to efficiently and satisfactorily perform the pillow handling work. The point is to provide a combine.

[0010]

According to another aspect of the present invention, there is provided a combine vehicle according to claim 1, wherein a traveling body is provided with a reaper section capable of being moved up and down by a traveling state switching means and a traveling body which can be switched between a traveling state and a traveling stopped state. And a threshing section for threshing processing while sandwiching and transporting the root side of the harvested culm to be harvested and transported by the harvesting section, the traveling state switching means and the elevating / lowering unit. Control means for controlling the operation of the operating means, and travel command means operably provided from the outside of the vehicle body for instructing start and stop of travel for pillow handling work are provided, and the control means comprises: When the start of travel is instructed by the travel command means, the reaper is raised to the height for retreat and the travel of the traveling vehicle body is started, and the travel command means instructs stop of travel. Then, the pillow handling control for controlling the operation of the traveling state switching means and the lifting operation means is executed so as to stop the traveling of the traveling vehicle body and lower the mowing unit to the height for pillow handling. It is characterized in that it is configured as follows.

That is, when the traveling instruction means is operated from the outside of the vehicle body to instruct the start of traveling for pillow handling,
The control means controls the operations of the traveling state switching means and the elevating operation means so as to raise the mowing unit to the height for retreat and start traveling of the traveling vehicle body. In other words, when the start of traveling for pillow operation is commanded, the mowing unit is in the middle of rising toward the high evacuation position, or the mowing unit has already been elevated to the high evacuation position. Since the traveling vehicle body will start traveling in any of the following conditions, even if the orientation of the traveling vehicle body may change due to unevenness of the ground due to traveling, It is possible to favorably move the robot in a state where there is little risk of collision, plunging into a convex portion of the ground, or the like.

When the traveling vehicle body reaches an appropriate position for carrying out the pillow operation and the traveling instruction means is operated from the outside of the vehicle body to instruct the traveling vehicle to stop, the control means causes the traveling vehicle body to move. The operations of the traveling state switching means and the elevating operation means are controlled so that the traveling of the vehicle is stopped and the reaper is lowered to the height for pillow handling. In other words, as the traveling vehicle stops, the mowing part automatically descends to the height for pillow handling, so a wide working space can be secured at the start end of the feed chain, and the hand-cut grain can be put in. It will be easy to do.

That is, by instructing the start and stop of the traveling for the pillow handling work by the traveling command means which can be operated from the outside of the vehicle body, the traveling vehicle body can be efficiently handled without the need to return to the body control section. Can be moved to an appropriate position for performing. Moreover, when the traveling vehicle travels, the mowing unit automatically rises to the evacuation height, which is good without any disadvantages such as the mowing unit colliding with the ground or plunging into a convex part of the ground. Since the mowing unit automatically descends to the height for pillow handling when stopping traveling, it is possible to secure a wide working space and to easily insert hand-crop culms. Become.

Therefore, in a state where there is no disadvantage that the mowing section collides with the ground, or plunges into a convex portion of the ground, and moreover, every time the traveling vehicle body is run, the mowing section returns to the vehicle body control section to raise the mowing section. It has become possible to provide a combine that can efficiently and satisfactorily perform pillow handling work without the need for troublesome work such as separately instructing the descent.

The combine according to claim 2 is the combine according to claim 1.
In the above, the control means is configured to start traveling of the traveling vehicle body after raising the reaping unit to a height for retreat when the traveling instruction means instructs the traveling start. Characterize.

That is, when the start of running is instructed, the reaping unit is first raised to the height for retreat, and then the running of the running vehicle is started. Even if there is a large change, the mowing unit has already risen to the evacuation height when starting traveling, making sure that the mowing unit does not collide with the ground or plunge into the convex part of the ground. Claim 1
Suitable means for carrying out are obtained.

According to a third aspect of the present invention, in the combine apparatus according to the first or second aspect, when the control unit instructs the traveling stop to instruct the traveling, the traveling unit stops the traveling of the traveling vehicle body and then the harvesting unit is operated. It is characterized in that it is configured to be lowered to a height for pillow handling.

That is, when the traveling stop is instructed, the traveling car body is stopped first, and then the mowing unit is lowered to the height for pillow handling. Although the mowing unit keeps rising to the evacuation height while traveling, the mowing unit collides with the ground or plunges into a convex part of the ground even when the This can be reliably avoided, and a suitable means for carrying out claim 1 or 2 can be obtained.

The combine according to claim 4 is defined by claim 1
In any one of 3 above, the traveling state switching means is configured to be capable of changing the traveling speed of the traveling vehicle body in the traveling state, and the control means travels in response to the traveling start command issued by the traveling command means. When the traveling of the vehicle body is started, the operation of the traveling state switching means is controlled so as to gradually increase the traveling speed of the traveling vehicle body to the set speed for movement.

That is, when the traveling start is instructed to start traveling, the traveling speed of the traveling vehicle body is gradually increased until it reaches the set speed for movement, so that the operator is positioned outside the vehicle body to operate the traveling instruction means. When manually instructing, it is possible to work as safely as possible without feeling a sense of incongruity as when the traveling speed rapidly increases.
Suitable means for carrying out any of the three are obtained.

[0021] The combine as claimed in claim 5 is as follows.
In any one of 4 above, based on a switching command from the mode switching means, the control means can freely switch between a pillow handling mode in which the pillow handling control is executed and a stop mode in which the pillow handling control is not executed. In the stop mode, the operation of the traveling state switching means and the elevating operation means is controlled based on the command information of the command means provided in the vehicle body control section. To do.

That is, the control means executes the above-described pillow handling control when it is switched to the pillow handling mode, and does not perform the pillow handling control when it is switched to the stop mode. , Based on the command information of the command means provided in the vehicle body control unit, for example, the running state switching so as to perform the raising and lowering operation of the cutting unit and the switching between the running state and the running stopped state, which correspond to a normal cutting operation. Means and the operation of the lifting operation means.

In this way, the control mode is switched based on the switching command of the mode switching means, so that the traveling command means is erroneously operated when the pillow handling work is not performed, so that the operator It is possible to ensure safety in use by avoiding that the mowing unit automatically rises unintentionally or the traveling vehicle body starts traveling, and any one of claims 1 to 4 is implemented. A suitable means is obtained.

[0024]

BEST MODE FOR CARRYING OUT THE INVENTION [First Embodiment] An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a combine according to the present invention. The combine has a pair of left and right crawler-type traveling devices 1, a vehicle body control unit 2 having a driver's seat, and a cutting unit 3 at the front of the traveling body.
The planting culms such as rice and wheat are mowed by the reaping unit 3, the culm grains are received by the feed chain 6 of the threshing unit 5, and the threshing process is performed. It is configured to be transported to and stored in the grain tank 7. The cutting unit 3 includes a raising device 3a that causes planted grain culms, a clipper-type cutting blade 3b that cuts the root side of the grain culm that has been raised, and a rearward while gradually changing the harvested grain culm to a sideways posture. And a vertical transport device 3c for transporting to the side, and is provided in the front part of the traveling vehicle so as to be capable of swinging up and down around a horizontal axis P, and can be lifted and lowered by a lifting hydraulic cylinder 4 as a lifting operation means. Has become.

A potentiometer-type elevation position sensor S1 whose output value changes in accordance with the swing of the cutting section 3 is provided at a position on the machine body side near the elevation axis P of the cutting section 3, and this elevation position sensor. S1 is configured to detect the ascending / descending position of the mowing unit 3 with respect to the traveling vehicle body.

Next, the transmission structure of the combine will be described. As shown in FIG. 2, the power of the output shaft 8a of the engine 8 is transmitted through a belt tension type threshing clutch 9 to the Karato drive shaft 10, which is also used as the input shaft of the threshing unit 5,
The rotating power of the Karato drive shaft 10 is transferred from the one end of the Karato drive shaft 10 via the transmission belt 11 and the like to the rotary shaft 1 of the handling cylinder 12.
2a, while the rotational force of the Karato drive shaft 10 is transmitted from the other end of the Karato drive shaft 10 to the transmission belt 13
It is configured to be supplied to the exhaust wall cutter 14 via the feed chain clutch 15 and to be transmitted to the chain drive sprocket 16 around which the feed end side of the feed chain 6 is wound via the feed chain clutch 15 of the dog clutch type. That is, in the feed chain clutch 15, the feed chain 6 is driven in the engaged state in which the meshing is performed, and the feed chain 6 is stopped in the disengaged state in which the meshing is released.

The threshing clutch 9 is constructed so that the threshing clutch lever 17 provided in the vehicle body control section 2 is manually operated to engage and disengage the clutch, and the threshing clutch lever 17 is operated in the clutch engaged state in the vicinity thereof. A threshing switch S2 is provided to detect whether or not the threshing has occurred.

Then, the feed chain clutch 1
5 is a feed chain clutch 1 as shown in FIG.
5, an operation arm 18 is provided which is swingably operable in a state of being interlocked with a clutch switching fork (not shown) and biased toward the clutch engagement side.
An operation wire 21 interlocks with a drive arm 20 which is rotated by a power of a clutch operating electric motor (hereinafter referred to as a clutch motor) M1 via a gear meshing mechanism 19 to drive and control the clutch motor M1. As a result, the feed chain clutch 15 can be turned on and off.

The threshing clutch 9 turns on and off the transmission from the engine 8 to the devices of the threshing section 12 and other parts of the threshing section, and the feed chain clutch 15 turns on and off the transmission of only the feed chain 6. Even if 9 is engaged, by switching the feed chain clutch 15 to the disengaged state, only the feed chain 6 can be stopped.

The power of the output shaft 8a of the engine 8 is transmitted via the transmission belt 22 and the transmission shaft 23 to the hydrostatic continuously variable transmission F as a traveling transmission, and the power after the shift is transmitted. While being transmitted from the traveling mission 24 to the left and right traveling device 1, the power after shifting is transmitted to the input shaft 3d of the mowing unit 3 via the output shaft 25 and the belt tension type mowing clutch 26. Although not shown, the power of the input shaft 3d is transmitted to the respective input portions of the raising device 3a, the harvesting device 3b, and the conveying device 3c by a transmission mechanism including a transmission shaft and the like.
Further, the traveling mission 24 is provided with a vehicle speed sensor S3 that detects the vehicle speed based on the rotation speed of the traveling output shaft with respect to the traveling device 1.

The reaping clutch 26 turns on and off the transmission from the engine 8 to each part of the reaping section 3, and as shown in FIG. 2, manually operates a reaping clutch lever 27 provided in the vehicle body manipulating section 2. By doing so, the clutch is engaged and disengaged. By switching the reaping clutch 26 between on and off, each device of the reaping section 3 is switched between driving and stopping.

As shown in FIG. 3, an electric motor (hereinafter, referred to as a speed change motor) M2 for speed change operation for speed-changing the continuously variable speed change apparatus F includes an interlocking mechanism 29 between the manual speed change lever 28 and the continuously variable speed change apparatus F. The frictional transmission mechanism 30 is linked to the. That is, the manual shift operation is prioritized over the shift operation by the shift motor M2, and the shift operation can be performed by either the manual operation on the manual shift lever 29 or the drive operation by the shift motor M2. In addition, the continuously variable transmission F shifts from the neutral state where traveling is stopped to any operation direction not only when it is manually operated by the manual shift lever 28 but also when it is automatically operated by the shift motor M2. When operated,
When the vehicle is switched to the forward traveling state, the traveling speed is continuously increased, and when the gear shift operation is performed in the opposite direction from the neutral state, the traveling state is switched to the reverse traveling state and the traveling speed is continuously increased. Therefore, this shift motor M
Reference numeral 2 constitutes a traveling state switching means capable of switching the traveling vehicle body between a traveling state and a traveling stopped state. A travel neutral switch S4 for detecting whether or not the vehicle is in a neutral state (travel stopped state) is provided near the manual transmission lever 28.

In this combine, the clutch motor M1, the speed change motor M2, and the lifting hydraulic cylinder 4 are used.
To a drive state of the feed chain 6, a control device H using a microcomputer as a control means for controlling the operation of the above, a travel command switch 30 as a travel command means for instructing start and stop of travel for pillow handling work. Clutch switch 3 as switching command means for commanding switching of the
1 is provided.

Then, the control device H detects that the threshing switch S2 is in the ON state and the threshing clutch 9 is in the engaged state, and the running neutral switch S4 is in the ON state to detect the neutral state. Is continued for a set time (2 seconds) or more, the feed chain 6 is switched to the stopped state, and when the switch 31 is instructed to switch to the driven state while the feed chain 6 is switched to the stopped state, The operation of the clutch motor M1 is controlled so that the feed chain 6 is switched to the driving state. Further, when the traveling command switch 30 issues a command to start traveling while the feed chain 6 is switched to the stopped state, the reaper 3 is raised to the evacuation height and the traveling vehicle body is started. In addition, when the traveling stop is instructed by the traveling command switch 30, the traveling motor M2 and the hydraulic pressure for raising and lowering are arranged to stop traveling of the traveling vehicle body and lower the mowing unit 3 to the height for pillow handling. It is configured to execute a pillow control that controls the operation of the cylinder 4.

Further, the control device H is adapted to execute the following control in addition to the above pillow handling control. For example, when the vehicle speed control ON / OFF switch 32 is instructed to enter the control, the engine 8 detected by the rotation speed sensor S5.
Is configured to execute vehicle speed control that automatically adjusts the vehicle speed so that the engine load obtained by the difference between the actual rotation speed of the vehicle and the preset no-load rotation speed is maintained within the set range. The part 2 is provided with a mowing lift lever 33 for instructing the raising and lowering operation of the mowing part 3, and the operation amount of the mowing lift lever 33 is detected by the potentiometer 34,
The electromagnetic control valve 35 for the lifting hydraulic cylinder 4 is switched and controlled according to the operation amount to perform lifting control for changing and adjusting the lifting position of the mowing unit 3. In a normal mowing operation in which the mowing unit 3 performs a mowing operation while the traveling vehicle body is traveling, an appropriate mowing operation can be performed by executing such normal control.

As shown in FIG. 1, the traveling command switch 30 and the clutch-engaging switch 31 are provided so as to be operable from the outside of the vehicle body at a position near the feed start end of the feed chain 6. In other words, the worker is located outside the traveling vehicle body in order to perform the pillow handling work in which the hand-cut grain culms juxtaposed in the field are manually put into the feed start end portion of the feed chain 6.
Even if you do not need to return to the vehicle body control unit 2 when you do pillow work while moving the traveling vehicle body along the ridges little by little,
By operating the travel command switch 30, the traveling vehicle body can be moved.

The travel command switch 30 is constituted by a switch type switch which is turned on when the push operation is performed and is turned off when the push operation is released.
Is pressed and turned on to instruct the start of traveling, and the push operation of the traveling command switch 30 is released and turned off to instruct to stop traveling.

The control operation for pillow handling by the controller H will be described in detail below with reference to the control flowcharts of FIGS. 5 and 6 and the time chart of FIG. That is, FIG.
As shown in, when the threshing switch S2 is in the ON state and the traveling neutral switch S4 is in the ON state to detect the neutral state for a set time (2 seconds) or more, the clutch motor M1 is operated to operate the feed chain. Clutch 15
To the clutch disengaged state (steps 1, 2,
3, 4). Then, when the travel command switch 30 is pushed and turned on, the pillow handling control is executed (step 5,
6).

Pillow handling control will be described with reference to FIGS. 6 and 7. First, the lifting / lowering hydraulic cylinder 4 is operated, and the cutting unit 3 is operated based on the detection information of the lifting / lowering position sensor S1.
The cutting unit 3 is raised until the height reaches the evacuation height (steps 61, 62, 63). As the height for this evacuation,
When the traveling vehicle body travels, even if the posture of the vehicle body changes due to the unevenness of the field, the cutting unit 3 is set at a position elevated so as not to contact the ground. Next, the shift motor M2 is operated to start the forward traveling of the traveling vehicle body, and the traveling speed is gradually increased so as to be gradually increased (steps 64 and 65). More specifically, the speed increasing output to the variable speed motor M2 is output only for 200 msec, and thereafter, the process of waiting for 300 msec is repeated intermittently while repeating the process to gradually increase the speed. I am trying to increase it. However, the output time of the first time is set to be slightly longer (about 500 msec) so that the running can be started smoothly. When the running speed becomes equal to or higher than the set speed (for example, 0.35 m / s) equal to the walking speed of the human, the speed increasing is stopped and the running is switched to the constant speed running (steps 66 and 67).

When the traveling command switch 30 is turned off, the transmission motor M2 is operated to activate the traveling neutral switch S4.
After the vehicle speed is reduced until the vehicle is turned on and the traveling is stopped, the lifting hydraulic cylinder 4 is operated to lower the mowing unit 3 (steps 68 to 72). When the mowing unit 3 descends to the height for pillow handling based on the detection information of the elevation position sensor S1, the descending of the mowing unit 3 is stopped (step 73,
74). The height for handling the pillow means that the cutting section 3 is lowered so that a wide working space can be secured at the starting end of the feed chain 6 so that the hand-cutting culms can be easily inserted. The height is a low position close to the height for normal mowing work.

The operator inserts the hand-cut grain culm into the starting end of the feed chain 6 to perform the threshing process while the cutting unit 3 is descending in this manner. At this time, the feed chain 6 Is in a drive stopped state, so when the operator operates the clutch switch 31 to turn it on,
The clutch motor M1 is operated to switch the feed chain clutch 15 to the clutch engaged state (steps 7 and 8). When approximately 6 seconds have elapsed after the feed chain clutch 15 was switched to the clutch-engaged state, the clutch motor M1 was operated to switch the feed chain clutch 15 to the disengaged state (steps 9 and 1).
0, 11). In other words, it is considered that the insertion of the hand-crop culm is completed in less than about 6 seconds, and further, when the traveling command switch 30 is operated again in order to move the traveling vehicle body to the next work location. In order to ensure safety, the drive of the feed chain 6 is automatically stopped. Further, thereafter, when the traveling command switch 30 is operated again, the above-mentioned pillow handling control is executed, and when the clutch-engaging switch 31 is operated, the feed chain clutch 15 is switched to the clutch-engaging state. Such work can be repeatedly executed.

When the travel command switch 30 and the clutch-engaging switch 31 are not operated and the threshing switch S2 is turned off, the feed chain clutch 15 is switched to the clutch disengaged state (step 12), and the threshing switch S2 is on and the running neutral switch is turned on. S4 is turned off,
That is, when it is detected that the traveling vehicle body starts traveling while the threshing unit 5 is driven, the feed chain clutch 15 is switched to the engaged state (step 13).

[Second Embodiment] A second embodiment of the combine according to the present invention will be described below with reference to the drawings. In this embodiment, the other configuration is the same as that of the first embodiment except that the mode switching means is provided and the control configuration by the control device H is different. Therefore, only the different configuration will be described. Description of the same configuration will be omitted.

That is, in this embodiment, a change-over switch (not shown) as a mode change-over means that can switch between a state in which a pillow control mode is instructed and a stop mode is instructed in a state where the vehicle body control section can be manually operated. When the pillow handling mode is commanded by the changeover switch, the control device H executes the pillow handling control, and when the stop mode is commanded by the changeover switch, the control device H causes the The pillow handling control is not executed, and the operations of the shift motor M2 and the lifting hydraulic cylinder 4 are controlled based on the command information of the command means provided in the vehicle body control section.

The control of the control device H in the stop mode will be briefly described. As an example of the command means provided in the vehicle body control section, when the vehicle speed control on / off switch 32 issues a command to enter the control, the rotational speed is changed. The vehicle speed control is executed to automatically adjust the vehicle speed so that the engine load obtained by the difference between the actual rotation speed of the engine 8 detected by the sensor S5 and the preset no-load rotation speed is maintained within the set range. . As another command means, the potentiometer 34 detects the operation amount of the mowing lift lever 33 provided in the vehicle body control section 2, and the electromagnetic control valve 35 for the lifting hydraulic cylinder 4 is made to correspond to the operation amount. The configuration is such that lifting control for changing and adjusting the lifting position of the mowing section 3 by switching control is performed.

The control operation for pillow handling by the control device H in this embodiment will be further described. As shown in FIG. 8, the control device H is the same as in the case of the first embodiment.
When the threshing switch S2 is in the ON state and the traveling neutral switch S4 is in the ON state to detect the neutral state for a set time (2 seconds) or more, the clutch motor M1 is operated to disengage the feed chain clutch 15. Although the state is switched (steps 21 to 24), at this time, if the pillow handling mode is instructed by the changeover switch, when the traveling command switch 30 is turned on, the pillow handling similar to the case of the first embodiment is performed. The control and the engagement operation of the feed chain clutch 15 are executed (steps 25 to 3).
2) Then, the feed chain clutch 15 is disengaged by turning off the threshing switch S2 (step 33).
However, if the stop mode is instructed by the changeover switch, the pillow control is not executed and the feed chain clutch 15 is switched to the clutch engaged state (step 3).
4). Then, although not described in detail, the vehicle speed control and the elevation control as described above are executed.

[Other Embodiments] Other embodiments will be listed below.

(1) In each of the above-described embodiments, when the traveling vehicle body starts traveling as the traveling command switch 30 issues a traveling start command, the traveling speed of the traveling vehicle body becomes the set speed for movement. Although the configuration is such that the operation of the transmission motor M2 is controlled so as to gradually increase the speed, the configuration is not limited to such a configuration, and the configuration may be such that the speed is quickly switched so that the traveling speed of the traveling vehicle body becomes the set speed for movement. .

(2) In each of the above-mentioned embodiments, when the traveling stop is instructed by the traveling command switch 30, the traveling vehicle body is stopped and then the reaping section 3 is lowered to the height for pillow handling. However, the configuration is not limited to such a configuration. For example, the lowering operation of the mowing unit 3 may be performed simultaneously with the traveling stop operation.

(3) In each of the above-described embodiments, when the traveling start is commanded by the traveling command switch 30, the traveling vehicle body starts traveling after raising the reaping section 3 to the height for retreat. However, the configuration is not limited to such a configuration, and for example, the raising operation of the mowing unit 3 may be performed at the same time when the traveling is started.

(4) In each of the above embodiments, the reaper 3
It has been determined based on the detection information of the ascending / descending position sensor that the height has risen to the height for evacuation, and that the height has fallen to the height for pillow handling. , It is possible to determine whether the height has risen to the evacuation height and the height has fallen to the pillow handling height, depending on whether or not the set time has elapsed after starting the ascending operation and the descending operation. Good.

(5) In each of the above-described embodiments, the traveling vehicle body travels forward when the traveling start is instructed by the push operation of the traveling command switch 30. Not only the above, but so that the vehicle body can travel on both the forward traveling side and the backward traveling side, it is configured to include a command switch for forward movement and a command switch for backward movement, or as a swing lever operation type switch, It may be implemented in various forms, such as a configuration in which forward movement is commanded when swinging to one side, and backward movement is commanded when swinging to the other side.

(6) In each of the above-described embodiments, as the traveling state switching means, a hydrostatic type continuously variable transmission is used which is a shift motor capable of continuously shifting gears including a neutral state. Not limited to this, for example, while the continuously variable transmission is adjusted to a set speed for pillow handling, a traveling clutch mechanism that can intermittently supply and disconnect the power to the traveling device is provided, and the clutch mechanism serves as the traveling state switching means. A configuration may be provided in which an actuator for turning on and off is provided, and the traveling state and the traveling stopped state can be switched by operating the actuator.

(7) In the second embodiment, when the threshing switch S2 is on and the running neutral switch S4 is on and the neutral state is detected for a set time or longer, the clutch motor M1 is activated. Thus, the feed chain clutch 15 is switched to the clutch disengaged state. However, the present invention is not limited to such a configuration, and the feed chain is switched to the stopped state when the pillow handling mode is commanded by the changeover switch. Good.

[Brief description of drawings]

1] Overall side view of combine

FIG. 2 is a diagram showing a transmission configuration.

FIG. 3 is a diagram showing an operation configuration for pillow mowing.

FIG. 4 is a control block diagram.

FIG. 5 is a flowchart of control operation

FIG. 6 is a flowchart of control operation

[Figure 7] Time chart

FIG. 8 is a flowchart of the control operation of the second embodiment.

[Explanation of symbols]

3 reaper 4 Lifting operation means 5 Threshing department 6 feed chains 30 Travel command means 31 Switching command means H control means M2 running state switching means

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Tomoya Matsubayashi             64 Ishizukitamachi, Sakai City, Osaka Prefecture Kubo Co., Ltd.             Ta Sakai Factory (72) Inventor Kazuhiro Takahara             64 Ishizukitamachi, Sakai City, Osaka Prefecture Kubo Co., Ltd.             Ta Sakai Factory (72) Inventor Tetsuya Nakajima             64 Ishizukitamachi, Sakai City, Osaka Prefecture Kubo Co., Ltd.             Ta Sakai Factory (72) Inventor Ryosuke Hirai             64 Ishizukitamachi, Sakai City, Osaka Prefecture Kubo Co., Ltd.             Ta Sakai Factory F-term (reference) 2B076 AA03 BA07 CA04 CC02 DA02                       DA05 DA15 DA16 DB06 DB08                       DB09 DC03 DD01 DD02 EA02                       EC23 ED01 ED16 ED30                 2B382 GA03 GA09 GC03 GC21 GD02                       HA01 HB02 HF02 HF18 HF19                       JA02 JA13 JA23 JA26 JC01                       LA06 LA19 LA26 LC04 LD05                       MA04 MA12 MA13 MA15 MA16                       MA24 MA25 MA27

Claims (5)

[Claims] 1. A traveling vehicle body, which can be switched between a traveling state and a traveling stopped state by a traveling state switching means, is provided with a mowing section which can be raised and lowered by an elevating operation means, and is cut and conveyed by the mowing section. A combine provided with a threshing section for threshing while sandwiching and transporting the root side of the cut grain culm by a feed chain, the control means controlling the operation of the traveling state switching means and the elevating operation means, and the outside of the vehicle body. And a traveling command means for instructing the start and stop of traveling for pillow handling work, and the control means commands the start of traveling by the traveling command means. , Raising the reaping unit to a height for retreat, starting traveling of the traveling vehicle body, and stopping traveling of the traveling vehicle body when the traveling instruction means instructs the traveling vehicle body to stop traveling. Combine that is configured to be the reaper as lowering the height of a rowing pillow, executes pillow threshing control for controlling the operation of the traveling state switching means and the lifting operation means. 2. The control means is configured to, when a travel start is instructed by the travel command means, raise the reaping section to a height for retreat and then start traveling of the traveling vehicle body. The combine according to claim 1, wherein 3. The control means is configured to, when a travel stop is instructed by the travel command means, stop the travel of the traveling vehicle body and then lower the reaping unit to a height for pillow handling. The combine according to claim 1 or 2, which is provided. 4. The traveling state switching means is configured to be able to change the traveling speed of the traveling vehicle body in the traveling state, and the traveling means changes the traveling speed of the traveling vehicle body in response to an instruction to start traveling by the traveling instruction means. 4. When the traveling of the vehicle is started, the operation of the traveling state switching means is controlled so as to gradually increase the traveling speed of the traveling vehicle body to the set speed for movement. Combine as described in. 5. The control means is configured to be switchable between a pillow handling mode in which the pillow handling control is executed and a stop mode in which the pillow handling control is not executed based on a switching command from the mode switching means. In the stop mode, the operation of the traveling state switching means and the elevating operation means is controlled based on the command information of the command means provided in the vehicle body control section. The combine according to any one of 1.