JP2003225013A - Travel operation apparatus of combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem that the deterioration of cutting trails, the cutting of grain straws in an un-cutting area with a cutting member or the cutting of soil in a field with the cutting member is caused, when a rake-in pedal is depressed to stop a travel device during a grain straw-reaping work on a ridge side or the like. <P>SOLUTION: A rake-in pedal 7 for engaging or disengaging the right and left side clutches 6a, 6b of a travel mission case 4 for rotating the travel device 3 is depressed to stop the travel device, and an elevating cylinder 17 for elevating a machine frame 1a is operated with a controller 20a. Right and left rolling cylinders 8a, 8b for controlling the rolling of the travel device on the stop of travel are operated to elevate the machine frame 1a. Right and left equalizing cylinders 48a, 48b for moving rotation wheels for the travel crawlers 3a of the travel device 3 are operated to elevate the machine frame 1a. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is provided with a left / right side clutch in a traveling mission case for rotationally driving a traveling device, and only the left / right side clutch is turned on / off.
A scraping pedal is provided for running or stopping the running by turning the switch off. The depression / operation of the scraping pedal controls the left and right side clutches "off", and the lifting cylinder that controls the lifting and lowering of the machine body. This is a technology in which the machine is controlled to operate and the machine is controlled to move up.

[0002]

2. Description of the Related Art When harvesting napped culms by combine harvesters, traveling devices provided on the left and right sides of the underside of the traveling chassis are driven by the rotation of a transmission mechanism in a traveling mission case provided at the front of the traveling chassis. It is driven to rotate and the combine travels, and the napped culms are mowed by the reaper provided on the front side of the traveling chassis, transferred to the upper rear part by this reaper, supplied to the thresher, and sandwiched inside the thresher. Threshing is performed during the transfer, and the threshed grains are supplied and temporarily stored in a grain storage tank provided on the side of the thresher.

When the driver operates the scraping pedal while running the mowing and harvesting work, the left and right side clutches of the transmission mechanism inside the traveling mission case are disengaged in conjunction with this operation. When this is done, the rotation drive of the traveling crawlers of the traveling devices on the left and right sides of the combine is stopped, the traveling of this combine is stopped, the harvesting work of the grain culm is temporarily stopped, but the operation of the reaper and the thresher is stopped. The grain culm that is being continuously clamped and transferred to the reaper is transferred to the upper rear part by this reaper, is supplied to the thresher, is threshed by this thresher, and the threshered grains are supplied to the grain storage tank. Are stored temporarily. Even when the run is stopped by stepping on the scraping pedal, the vertical positions of the entire machine body and the reaper are maintained at the height position at the time of the stop operation without being controlled to move up. The grain culms being sandwiched are transferred and threshed.

Further, when the combine is stopped for a long time on the field, on the road, etc., when the driver depresses the drive brake petal, the brake load is applied to the brake device in conjunction with this operation and the operator stops. The driving brake is applied to the combine harvester.

[0005]

When the combine is stopped during traveling while cutting the combine,
When the scraping pedal is stepped on, the left and right side clutches in the traveling mission case are operated in the disengaged state, and the combine is in the stopped state, but the continued operation of the reaper and threshing machine causes During the cutting operation such as in the case of cutting, the traces of cutting may be bad, and the cutting blade device that cuts the grain culms of the reaper may be used to mow the uncut grain culm, and further use this cutting blade device to soil the field. However, the present invention is intended to solve these problems.

[0006]

To this end, according to the invention described in claim 1, the present invention provides a traveling device 3 on both left and right sides below a traveling chassis 2 and traveling for rotationally driving the traveling device 3. A traveling mission case 4 having left and right side clutches 6a and 6b and the like mounted in the front part of the chassis 2 and a scratch for stopping or running by operating the left and right side clutches 6a and 6b by turning on and off. In the combine provided with the push-in pedal 7 and the like, the left and right side clutches 6a and 6b are "off" controlled by depressing the take-in pedal 7, and the lift cylinder 17 that controls the lift of the machine body 1a is controlled by the control device 20a. The control unit 20a is provided to control the operation of the machine body 1a to control the ascent of the machine body 1a.

For harvesting napped culms with a combine harvester, the traveling devices 3 provided on the left and right sides below the traveling chassis 2 rotate the transmission mechanism in the traveling mission case 4 provided at the front part of the traveling chassis 2. Is driven to rotate, the combine travels, the standing culm culms are mowed by the reaper provided in the front part of the traveling chassis 2, transferred to the upper rear part by the reaper, and supplied to the thresher. Threshing is carried out while sandwiching and transferring the inside of the machine, and the threshered grains are supplied to a grain storage tank provided on the side of the thresher and temporarily stored.

When the driver operates the scraping pedal 7 while the cutting and harvesting work is in progress, the left and right side clutches 6a of the transmission mechanism installed in the traveling mission case 4 are interlocked with this operation. , 6b are turned off,
The traveling crawlers 3a of the traveling devices 3 on the left and right sides of the combine
The rotation drive of this machine is stopped, the traveling of this combine is stopped, and the cutting work of the grain culm is temporarily stopped, but the operation of the reaper and the threshing machine is continued, and the grain culm sandwiched in the reaper is being transferred. , Is transferred to the upper rear part by the reaper, is supplied to the thresher, is threshed by the thresher, and the threshered grain is supplied to the grain storage tank and temporarily stored.

By depressing the scraping pedal 7, the traveling is controlled to stop, and at the same time, the elevating cylinder 17 for elevating and lowering the traveling device 3, the reaper, and the reaper constituting the machine 1a. Is controlled by the controller 20a,
The elevating cylinder 17 is started, and the reaper is controlled by the elevating cylinder 17 to ascend to a predetermined height position, and the grain culm being clamped is transferred, supplied to the thresher, and threshed.

According to the second aspect of the invention, the left and right side clutches 6 are operated by depressing the scraping pedal 7.
a and 6b are "off" controlled, and the control device 20a is provided to control the operation of the left and right rolling cylinders 8a and 8b that control the rolling of the traveling device 3 by the control device 20a. Claim 1 characterized by the above.
The travel operating device of the combine described in 1.

During the cutting and harvesting work, the take-in pedal 7
When a driver depresses the vehicle, the left and right side clutches 6a and 6b in the transmission mechanism installed in the traveling mission case 4 are disengaged in conjunction with this operation, and the traveling devices on the left and right sides of the combine are operated. The rotation drive of the traveling crawler 3a of No. 3 is stopped, the traveling of this combine is stopped, and the harvesting work of the grain culm is temporarily stopped, but the operation of the reaper and the threshing machine is continued, and it is sandwiched and transferred to the reaper. The grain culm inside is transferred to the upper rear part by this reaper, supplied to the thresher, threshed by this thresher, and the threshered grain is supplied to the grain storage tank and temporarily stored.

The left and right rolling cylinders 8a and 8b for controlling the rolling of the traveling device 3 are operated and controlled by the control device at 20a at the same time as the traveling is stopped and controlled by depressing the take-in pedal 7. The left and right rolling cylinders 8a, 8b are started, and the traveling chassis 3 is controlled to be raised to a predetermined height position. In conjunction with this raising control, the reaper of the machine body 1a is also controlled to be raised to a predetermined height position. Then, the grain culms being sandwiched are transferred, supplied to the thresher, and threshed.

According to the third aspect of the invention, the left / right side clutch 6 is depressed by depressing the scraping pedal 7.
a and 6b are "off" controlled, and the control device 20a actuates and controls the left and right equalizer cylinders 48a and 48b that control the movement of each of the wheels 31e for the traveling crawler 3a of the traveling device 3. Control device 20a for rising control
The traveling operation device for a combine according to claim 1 or 2, wherein the traveling operation device is provided.

The take-in pedal 7 is operated during the cutting and harvesting work.
When the driver depresses, the left and right side clutches 6a and 6b of the transmission mechanism in the traveling mission case 4 are disengaged in conjunction with this operation, and the traveling devices 3 on both the left and right sides of the combine are operated. The traveling drive of the traveling crawler 3a is stopped, the traveling of the combine is stopped, and the harvesting work of the grain culm is temporarily stopped, but the operation of the reaper and the thresher is continued, and it is being sandwiched and transferred to the reaper. The grain culms of this plant are continuously transferred to the upper rear part by this reaper and supplied to the thresher. Threshing is continued by this thresher and the threshered grains are supplied to the grain storage tank and temporarily stored. .

Left and right of an equalizer device for controlling movement of each wheel 31e for each traveling crawler 3a of the traveling device 3 on the left and right sides at the same time as the traveling is stopped and controlled by depressing the scraping pedal 7. Equalizer cylinder 48a, 4
8b is operated and controlled by the control device 20a, the left and right equalizer cylinders 48a, 48b are started, the traveling chassis 3 is controlled to be raised to a predetermined height position, and the reaper of the machine body 1a is linked to this raising control. At the same time, the grain culm that is being clamped and transferred is transferred to the threshing machine and threshed by being controlled to move up to a predetermined height position.

[0016]

According to the first aspect of the present invention, the left and right side clutches 6a and 6b provided in the traveling mission case 4 are turned off by the depression operation of the scraping pedal 7 in order to rotationally drive the traveling device 3. ", And the traveling stops,
The lifting cylinder 17 for controlling the raising of the reaper of the machine body 1a is
By the operation control by the control device 20a, and the reaper of the machine body 1a is elevated and controlled to a predetermined height position, the rake of the grain stalks to be reaped by the reaper becomes good, and the cutting blade device of the reaper is provided. Will leave the ridges and uncut culms,
It is possible to prevent cutting of uncut grain culm and cutting of soil in the field.

According to the second aspect of the present invention, the traveling of the traveling device 3 is stopped and the left and right rolling cylinders 8a and 8b for controlling the rolling of the traveling device 3 are controlled by the control device 20a. , The body 1a is controlled to be horizontal. By using this horizontal state control, the reaper of the machine body 1a is quickly raised, so that it is possible to improve the cut mark, prevent reaping of uncut corn, and prevent soil from being cut in the field.

According to the third aspect of the present invention, the traveling of the traveling device 3 is controlled to be stopped, and the control device 20a controls the rollers 31e for the traveling crawlers 3a of the traveling device 3.
Left and right equalizer cylinders 48a, 4 that control movement of the
By controlling the operation of 8b, even if the model does not have the left / right rolling cylinders 8a, 8b and the horizontal control is not performed, the left / right equalizer cylinder 48a,
By raising the reaper of the machine body 1a by 48b, it is possible to improve the cut marks, prevent reaping of uncut grain culms, and prevent cutting of soil in the field.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. A traveling device 3 is provided on both left and right sides below the traveling chassis 2 of the combine 1, and a traveling mission case 4 is provided at a front portion of the traveling chassis 2, and a transmission mechanism 5 inside the traveling mission case 4 is provided. Is provided with left and right side clutches 6a, 6b and the like. The running platform 2 is provided with a take-in pedal 7 for turning on / off only the left / right side clutches 6a, 6b, and the left / right side clutches 6a, 6b are operated by depressing the take-in pedal 7. The turning operation is performed, and the traveling of each traveling device 3 is stopped. Along with this stop, a reaper 10 for mowing the raised culm, a thresher 9 for threshing the culm, an engine 23, and an extendable cylinder 17 for vertically moving the reaper 10 of the machine body 1a formed by the traveling device 3 and the like. This is a configuration in which the control device 20a is installed inside the operating device 20 for operating the. These traveling devices 3
The traveling mission case 4, the take-in pedal 7, the telescopic cylinder 17, the control device 20a, etc. are mainly illustrated and described.

Below the traveling chassis 2 of the combine 1, as shown in FIG. 1, a pair of left and right traveling crawlers 3a traveling on the soil surface are stretched, and traveling devices 3 are arranged on both left and right sides,
A thresher 9 is placed on the upper side of the traveling chassis 2. The mowing machine 10 on the front side of the traveling chassis 2 cuts the napped culms, which are transferred to the upper rear part by the reaping machine 10 and fed to the feed chain 11a of the threshing machine 9 and the holding rod 1.
1b is taken over and threshed while being pinched and transferred. The grains that have been threshed and have been sorted are temporarily stored in a grain storage tank 12 arranged on the right lateral side of the threshing machine 9.

On the front side of the traveling chassis 2, as shown in FIG. 1, a narrow guide 13 for separating the napped culms from the front end position.
a, a succulent body 13b, and a raising device 1 for raising a napped culm
4a, a scraping device 15a of the scraping and scraping transfer device 15 for scraping the raised crops, a cutting blade device 14b for cutting the scraped crops, and a sandwiched transfer of the scraped crops. And the root / head transfer device 16 of the grain stalk scraping transfer device 15 which is delivered to the feed chain 11a of the thresher 9 and the holding rod 11b.
A reaper 10 composed of a, 16b, etc. is provided. Aircraft 1
The reaper 10a is a hydraulically driven lift cylinder 17
Thus, it is configured to move up and down with respect to the soil surface.

A support pipe rod 18b in the left-right direction is provided at the upper end of the support rod 18a inclined from the lower front portion to the rear upper portion of the reaper 10, and the support pipe rod 18b is provided on the upper side surface of the traveling chassis 2. The reaper 10 is rotatably supported by a support device 18c, and the reaper 10 is rotated up and down with the support pipe rod 18b as the center of rotation by the operation of the lift cylinder 17.

In the grain culm transfer path formed by the grain culm scraping transfer device 15 of the reaper 10, the grain culm to be cut and transferred is brought into contact with the grain culm to be supplied to the thresher 9. This is a configuration provided with a grain culm sensor 10a for detecting the presence or absence of On the upper side of the step 2a provided on the upper side of the traveling chassis 2 on the front side of the threshing machine 9 and the sub-step 2b provided on the front side of the step 2a, the operation room frame 19 is provided.
An operating device 19b formed by a is provided, and an operating device formed in a substantially L shape in a plan view for performing operations such as starting, stopping, and adjusting each part of the combine 1 as shown in FIG. 20, a cockpit 21 on which an operator who performs these operations is boarded, a drive brake petal 22, and a take-in pedal 7
Etc., the engine 23 is placed on the upper side surface of the traveling chassis 2 below the cockpit 21, and at the rear side,
A grain storage tank 12 is provided. These traveling devices 3,
The harvester 10, the threshing machine 9, the engine 23 and the like form a machine body 1a of the combine 1.

As shown in FIG. 7, the operating device 20 has a substantially L-shaped configuration inside the operating room 19b formed by the operating room frame 19a, and is arranged in front of the cockpit 21 and on the left lateral side. is there. Description will be made by displaying typical various levers, various adjustment dials, various switches and the like provided on the surface portion of the operation device 20. A hydraulic continuously variable transmission 24, which will be described later, operates to change the traveling speed of the combine 1 forward or backward, a main gear shift lever 25a, a traveling direction switching lever 26 for switching the traveling direction of the combine 1, a sub gear shift lever 25.
b, throttle lever 25c, cutting lever 25d, etc., vehicle speed adjustment dial 27a, cutting height adjustment dial 2
7b, handle depth adjusting dial 27c, etc., direction switch 28a, vehicle speed switch 28b, front and rear switch 28c,
And the left and right switches 28d and the like.

On the left side of the sub-step 2b provided in the front part of the step 2a, inside the operation room 19b formed by the operation room frame 19a, the left side of the sub-step 2b as shown in FIGS. 1 and 3 to 11. When the combine 1 is stopped, a brake load is applied to a brake device 29 provided on one lateral side of the traveling mission case 4, and the brake in the traveling mission case 4 is braked through the brake device 29. Stepping on the vehicle drive petal 22 for applying a vehicle drive brake to the brake drive shaft 30b via the shaft 30a or releasing the vehicle drive brake, or rotatable by a rotary shaft 22a to release the vehicle drive pedal 22. It is configured to be pivotally supported on. The operation of the drive vehicle brake petal 22 allows the left and right side clutches 6a, 6a,
6b has a configuration that does not "turn on" or "off".

On the right side of the sub-step 2b, the operation room 1
As shown in FIG. 5 to FIG. 11, a scraping petal 7 is rotatably provided inside 9b so as to be rotatable so as to be released, and by operating the scraping petal 7, the transmission installed inside the traveling mission case 4 is transmitted. The left and right side clutches 6a and 6b slidably supported on the side clutch shaft 6c of the mechanism 5 are "engaged".
When the "off" operation is performed, a plurality of left and right clutch plates 6d and 6e are operated in conjunction with this operation to apply a brake, and the left / right clutch plates 6d and 6e provided at the final end of the traveling mission case 4 are operated. The right traveling axles 31a and 31b are rotated or stopped to rotate, and the drive sprockets 31c and the rear sprockets 31d pivotally supported on the left and right traveling axles 31a and 31b, respectively.
Also, the traveling crawlers 3a of the traveling devices 3 on both the left and right sides, which are hung on the respective rolling wheels 31e, are rotated or stopped to rotate, so that the combine 1 travels or stops traveling. Even when this traveling is stopped, the operation of the threshing machine 9 and the reaper 10 is continued, and the grain culm sandwiched by the grain culm trapping transfer device 15 of the reaper 10 is the grain. It is configured to be sandwiched and transferred by the culm transfer device 15, supplied to the thresher 9, and threshed.

When traveling or stopping traveling of the traveling device 3, the left and right side clutches 6a and 6b in the traveling mission case 4 are turned on by operating the scraping pedal 7 provided on the right side of the sub-step 2b.・ ・ "Off" is operated,
When the traveling device 3 is stopped and the vehicle braking is applied, the braking device 29 of the combine 1 is operated by operating the vehicle braking petal 22 provided on the left side of the sub-step 2b.
A brake load is applied to the brake drive shaft 30b in the travel mission case 4 via the brake device 29, and the drive brake is applied to the drive device 3 in conjunction with this. When the traveling brake is applied, the traveling operation of the traveling device 3 or the traveling stop operation,
The operation of applying the vehicle drive brake is performed separately by the take-in pedal 7 and the vehicle drive brake pedal 22, so that the operation load of both is lightened and the operation is easy. Further, even if the driving brake petal 22 is operated on a sloping ground, the left and right side clutches 6a, 6b do not become "disengaged". Therefore, the combine 1 prevents natural traveling due to the slope of the sloping ground. It is a composition.

While the cutting operation of the napped culm is carried out, the left and right side clutches 6a and 6b pivotally supported by the side clutch shaft 6c in the traveling mission case 4 are disengaged by depressing the scraping pedal 7. Therefore, the traveling devices 3 provided on the left and right sides below the traveling chassis 2 of the combine 1 are configured to stop traveling.

By depressing the take-in pedal 7, the left and right side clutches 6a in the traveling mission case 4 are
6b is operated to the "off" state, the traveling of the traveling device 3 is stopped, and in conjunction with this traveling stop, the fuselage 1a of the combine 1 is
As shown in FIG. 1, the reaper 10 for forming the reaper is controlled by the control device 20a in which the lifting cylinder 17 is installed in the operating device 20.
Operation control (starting control) is performed, and by the operation of the lifting cylinder 17, the reaper 10 sets the support pipe rod 18b as the center of rotation, and the reaper 10 is set in the control device 20a.
The configuration is such that the ascent is controlled to the stored predetermined height position.
Further, when the depression operation of the scraping pedal 7 is released, the traveling device 3 travels and the reaper 10 is restored to the original height position.

The rotational movement of the traveling crawler 3a of the traveling device 3 is stopped by turning the left and right side clutches 6a and 6b installed in the traveling mission case 4 into operation by depressing the scraping pedal 7. As a result, the elevating cylinder 17 that controls the movement of the harvester 10 of the machine body 1a of the combine 1 is operated and controlled by the control device 20a of the operating device 20. The reaper 10 is controlled to move up to a predetermined height position, so that the reaping traces of the grain culms to be reaped by the reaper 10 are good, and the cutting blade device 14b of the reaper 10 has ridges and uncut grain. By moving away from the culm, it is possible to prevent cutting of uncut grain culms and cutting of soil in the field.

The traveling of the traveling device 3 is stopped by depressing the front-plucking pedal 7, and in conjunction with this traveling stop, via the traveling chassis 2 forming the machine body 1a of the combine 1.
As shown in FIG. 2, the reaper 10 has a left-hand side provided to control rolling and pitching of each traveling device 3 described in detail later.
The right / left rolling cylinders 8a, 8b and the left / right rolling cylinders 8a, 8 among the case pitching cylinders 55b
b is operated and controlled (starting control) by a control device 20a installed in the operating device 20, and by the operation of the left and right rolling cylinders 8a and 8b, the traveling chassis 3 controls the traveling chassis 2 of the machine body 1a to be horizontal. It As a result, the traveling chassis 2 is controlled to be raised to the predetermined height position, and the reaper 10 is controlled to be moved to the predetermined height position in conjunction with the raising control of the traveling chassis 2. . Further, when the depression operation of the scraping pedal 7 is released, the traveling device 3 travels, and the traveling chassis 2 and the reaper 10 are restored to their original height positions.

The rotation drive of the traveling crawler 3a of the traveling device 3 is stopped by the left-hand side installed inside the traveling mission case 4.
The right side clutches 6a and 6b are turned off by the depression operation of the take-in pedal 7 and are stopped to stop the traveling. At the same time, the right side clutches 6a and 6b are interlocked with this stop to form the fuselage 1a of the combine 1. In the reaper 10 via the chassis 2, the left and right rolling cylinders 8a and 8b that control the rolling of each traveling device 3 are operated and controlled by the control device 20a of the operating device 20, and by the left and right rolling cylinders 8a and 8b. The traveling vehicle 3 controls the traveling chassis 2 of the machine body 1a to be horizontal. As a result, the traveling chassis 2 is controlled to be raised to a predetermined height position, and the reaper 10 is also controlled to be moved to a predetermined height position in conjunction with this raising control. Using this horizontal state control, By quickly raising the reaper 10 of the machine body 1a, improvement of cutting marks, prevention of reaping of uncut culms, and prevention of cutting of soil in the field with the cutting blade device 14b of the reaper 10a can do.

By depressing the scraping pedal 7, the left and right side clutches 6a, 6a,
6b is operated to the "off" state, the traveling of the traveling device 3 is stopped, and in conjunction with this traveling stop, the fuselage 1a of the combine 1 is
The reaper 10 is provided via the traveling chassis 2 that forms the left side provided to control the movement of each wheel 31e for the traveling crawler 3a of the traveling device 3 described later in detail as shown in FIGS. 3 and 14.
The left and right equalizer cylinders 48a and 48b of the right equalizer devices 47a and 47b are operated and controlled (starting control) by the control device 20a installed in the operating device 20.
By the operation of the right equalizer cylinders 48a and 48b,
The traveling chassis 3 of the machine body 1a is controlled to be elevated to a predetermined height position by the traveling device 3. Interlocking with this raising control, the reaper 10 is configured to be raised to a predetermined height position. Further, when the depression operation of the scraping pedal 7 is released, the traveling device 3 travels, and the traveling chassis 2 and the reaper 10 are restored to their original height positions.

The rotation drive of the traveling crawler 3a of the traveling device 3 is stopped by the left-hand side installed inside the traveling mission case 4.
When the right side clutches 6a and 6b are stepped on by the scraping pedal 7, the state is set to "OFF", and the vehicle is stopped to stop the traveling. At the same time as the traveling stop, the machine body 1a of the combine 1 is formed. Through the chassis 2, the reaper 10 controls the left and right equalizer cylinders 48a, 48b that control the movement of the wheels 31e for the traveling crawlers 3a of the traveling devices 3.
Is controlled by the control device 20a of the operating device 20, and the traveling chassis 3 raises the traveling chassis 2 of the machine body 1a to a predetermined height position by the left and right equalizer cylinders 48a and 48b. As a result, the reaper 10 is also controlled to rise to a predetermined height position. For example, even if the model does not have the left / right rolling cylinders 8a and 8b, and the model does not perform horizontal control, the left / right equalizer cylinder The reaper 10a of the machine body 1a is raised and controlled by 48a and 48b to improve the cut mark, prevent reaping of uncut grain culm, and cut soil in the field with the cutting blade device 14b of the reaper 10. It is possible to prevent such things.

As shown in FIGS. 9 to 11, the traveling mission case 4 is provided with a brake device 29 on one side and a detour case 5a having a transmission mechanism 5b on the other side. In addition to being provided, a hydraulic continuously variable transmission 24 is provided on the upper portion. In the transmission path of the transmission mechanism 5 in the traveling transmission case 4 mounted on the front end of the traveling chassis 2, a potentiometer type vehicle speed sensor 4a for detecting the traveling vehicle speed based on the output thereof is provided. This is the configuration provided.

Between the brake lever 29a of the brake device 29 provided on the lateral side of the traveling mission case 4 and the pedal lever 22b of the vehicle drive brake pedal 22 rotatably provided on the left side of the sub-step 2b, 5, FIG.
Brake cable 22c as shown in FIGS. 9 and 11.
Is provided and connected. When applying the brake for vehicle driving, the pedal brake lever 22b, the cable 22c for brake,
And the brake device 29 via the brake lever 29a.
A brake load is applied to the brake transmission shaft 30a in the traveling mission case 4, and the vehicle drive brake is applied to the brake drive shaft 30b. Further, the vehicle drive brake is released by releasing the depression.

The take-in pedal 7 is used for the left and right side clutches 6 in the traveling mission case 4 as shown in FIGS.
This is a configuration in which the take-in pedal 7 is stepped on or off to turn on and off a and 6b, or pivotally supported by a take-up pedal shaft 7a to release the step. An ON-OFF switch type take-in pedal switch 33 provided at the front portion of the take-in pedal 7 is configured to be turned ON / OFF by a stepping-in operation or a stepping-down operation of the take-in pedal 7. This ON-OF
F is input to the control device 20a installed in the operating device 20, and based on this input, the control device 20a
Via the hydraulic continuously variable transmission 24, the left and right side clutches 6a and 6b in the traveling mission case 4 are set to "on".
The combine 1 is configured to be controlled to run or stop running by being turned off.

The mounting plate 7b of the take-in pedal 7 is shown in FIG.
As shown in FIG. 3, one end of the take-in cable 36 is attached to the left and right support shafts 34a of the traveling mission case 4,
The left and right shifters 34c and 34d are fixedly provided on the 34b, and the left and right levers 35a and 35b are provided outside the traveling mission case 4 at one end of the left and right support shafts 34a and 34b. Is fixedly provided. The left / right shifters 34c, 34d are inserted into the sliding grooves of the left / right side clutches 6a, 6b.

The inner 36a at the other end of the take-in cable 36 is attached to the left lever 35a, and the outer 36
b is the structure attached to the right lever 35b. The inner 36a and outer 36b of the take-in cable 36, the left / right levers 35a and 35b, and the left / right shifters 34c and 3 are operated by depressing the depressing pedal 7 or releasing the depressing operation.
4d, the left and right side clutches 6a and 6b in the traveling mission case 4 are operated to be turned on / off. Problems occur in the hydraulic continuously variable transmission 24, the take-in pedal switch 33, etc., and due to these problems,
Even if the left and right side clutches 6a and 6b cannot be operated "ON" and "OFF", the operation of the scraping pedal 7 causes the scraping cable 36 provided on the scraping pedal 7 to move to the left.・ Right side clutch 6a, 6b "ON" / "OFF"
It is a configuration to operate. It is a configuration that can prevent the harvesting work from being interrupted on the way.

By depressing the take-in pedal 7, the left and right side clutches 6a and 6b in the traveling mission case 4 are disengaged via the take-in cable 36 and the left and right clutch plates 6d and 6d. 6e is pushed and the brake is loaded. Conventionally, when the operation is performed on a sloping ground or the left and right side clutches 6a and 6b are loaded, even if the take-in pedal 7 is stepped on, delay in the disengagement operation of the left and right side clutches 6a and 6b, Although each traveling device 3 was not stopped in some cases, the left and right side clutches 6a and 6b were connected to each other by connecting the front pedal 7 and the left and right side clutches 6a and 6b with the raking cable 36.
The brake is applied together with the cut state.

As a result, even if the left and right side clutches 6a and 6b are operated to disengage on a sloping ground, the traveling devices 3 do not completely stop, and the vehicle naturally travels or the left and right side clutches 6a and 6b. When the load is applied to the vehicle, the cutting operation may be delayed or the traveling devices 3 may not stop. However, the take-in cable 36 is provided, and the take-in cable 36 and the left and right take-up pedals 7 are provided. By connecting the side clutches 6a and 6b, the left and right side clutches 6a and 6b are connected.
The above-mentioned problems can be solved by applying a brake together with the switching operation.

The operation of the threshing machine 9 and the reaper 10 is continued even when the scraping pedal 7 is depressed and the traveling of the combine 1 is controlled to a stopped state. When stopping the threshing machine 9 and the reaper 10, the cutting lever 25d is operated to the stop side.

Main shift lever 25a of the operating device 20
As shown in FIGS. 5 and 6, a receiving plate 38a provided below the main transmission lever 25a is rotatably supported by a rotating pin 38b on a mounting plate 37a fixedly attached to the operation frame 37. It is a composition. The rear side of the receiving plate 38a and the hydraulic continuously variable transmission 2
The trunnion shaft 24a of No. 4 has a connection configuration in which an adjustable connection lot 39a is provided.

Between the petal lever 22b of the drive vehicle brake petal 22 and the link 40a on one side of the rotatably provided rotating tool 40, the adjustable connecting lot 3 can be provided.
9b is provided and connected. Further, the front pin 40c on the front side of the link 40b on the other side of the rotating tool 40 and the receiving plate 38
A connecting lot 39c that can be adjusted is provided and connected between the support pin 38c provided on a and the support pin 38c. Further, the rear pin 40 on the rear side of the link 40b on the other side of the rotating tool 40
d and the support pin 38c provided on the receiving plate 38a,
This is a configuration in which an adjustable connection lot 39d is provided and connected.

When the vehicle drive brake pedal 22 is stepped on while the main transmission lever 25a is operated to the forward side, the pedal lever 22b and the connecting lot 39b are rotated about the rotation shaft 22a. Is pulled, turning tool 4
The link 0a of 0 is rotated counterclockwise, and the connected lot 39c acts in the pulled-down state, so that the main shift lever 25
a is a configuration that returns to the neutral position. Also, the main transmission lever 25
When the vehicle brake petal 22 is stepped on while a is being operated to the reverse side, the coupled lot 39d acts in a raised state and the main transmission lever 25a returns to the neutral position.

The brake drive shaft 30b, to which a brake load is applied via the brake shaft 30a of the brake device 29 provided in the traveling mission case 4, has the left and right side clutches 6a and 6b as shown in FIG. It is provided on the upper side of the supporting side clutch shaft 6c and on the lower side of the change shaft 41b that supports the change gear 41a. The brake device 29 is downsized, and the vehicle drive brake can be applied regardless of the auxiliary shift position.

The switch 33 is controlled to be turned on or off by depressing or releasing the stepping-in pedal 7, and this ON-OFF control is input to the control device 20a. Based on this input, this control device is controlled. 20a
The left and right side clutches 6a and 6b of the transmission mechanism 5 in the traveling mission case 4 are controlled to be "on" and "off", and each traveling crawler 3a of each traveling device 3 is rotationally driven or rotationally stopped to be controlled. Reference numeral 1 is a configuration for controlling traveling or traveling stop.

As shown in FIG. 2, the traveling device 3 is provided with left and right rolling cylinders 8a and 8b for controlling the rolling of the traveling device 3 and each pitching cylinder 55b for controlling the pitching. The operation of each traveling device 3 is stopped by depressing the scraping pedal 7, and the left and right rolling cylinders 8a and 8b are controlled by the control device 20a in conjunction with the stop of the traveling. In association with this operation, each traveling device 3 is controlled to be raised, and the traveling chassis 2 forming the machine body 1q, the reaper 10, etc. are controlled to be raised to a predetermined height position by this raising control.

In each of the traveling devices 3, as shown in FIGS. 3 and 4, each drive sprocket 31c pivotally supported on the left and right traveling axles 31a and 31b, and each rear sprocket 31d provided on the rear end side. In the substantially central portion between the rollers 31e, 31
Left and right equalizer device 47 that rotatably supports e
The left and right equalizer cylinders 48a and 48a for operating the a and 47a are provided. The operation of each of the traveling devices 3 is stopped by depressing the scraping pedal 7, and the left and right equalizer cylinders 48 are linked with the stop of the traveling.
Reference numerals a and 48a have a configuration in which operation is controlled by the control device 20a. In association with this operation, the traveling devices 3 are controlled to be raised, and the raising control controls the traveling chassis 2 forming the machine body 1a, the reaper 10, etc. to a predetermined height position.

On the rear side of the grain storage tank 12 for discharging the grains stored in the grain storage tank 12 to the outside of the machine,
A discharge support cylinder 42 having a vertical transfer spiral 43 installed therein is rotatably mounted in a substantially vertical posture, and an upper end portion of the discharge support cylinder 42 has its entire length extending in the front-rear length of the combine 1 to the outside of the machine. A discharge auger 44, in which a discharge spiral 45 for discharging is discharged, is arranged in the front-rear direction so that the discharge auger 44 can be expanded, contracted, rotated vertically, and rotated horizontally.

The left and right direction control push cylinders 46a and 46b, whose operation is controlled by operating the take-in pedal 7,
The configuration of the hydraulic circuit that controls the left and right equalizer cylinders 48a and 48b is as shown in FIG. Control of the left / right direction control push cylinders 46a, 46b and the left / right equalizer cylinders 48a, 48b will be mainly described with reference to the hydraulic circuit diagram shown in FIG.

As shown in FIG. 12, hydraulic oil is stored in the hydraulic tank 49. This hydraulic oil is absorbed by the hydraulic continuously variable transmission 24, and the hydraulic continuously variable transmission 24 rotates. The hydraulic oil is supplied to the cylinders of each part of the combine 1 by driving, and the cylinders of these parts are operated.

The left / right direction control push cylinder 46
As shown in FIG. 12, the hydraulic fluid from the hydraulic continuously variable transmission 24 is controlled by the filter 50a, the pump 50, and the pump 50a.
c, the filter 50b, and the priority flow dividing valve 50d, the electromagnetic switching valve 51a provided on the upstream side of the priority flow dividing valve 50d.
And the take-in valve 51b are controlled to be switched to the open position, and oil is sent to the left / right direction control push cylinders 46a, 46b via these valves 51a, 51b, and these left
The right direction control push cylinders 46a and 46b are configured to perform a stroke operation. The used hydraulic oil is returned to the hydraulic tank 49.

The left / right direction control push cylinder 46
The left and right equalizer cylinders 48a and 48b are activated after the strokes of a and 46b are activated. Further, the equalizer valve 52b, which will be described later, is not operated during the cutting operation by the automatic cutting direction control and during the use of the scraping pedal 7.

The hydraulic oil in the hydraulic tank 49 is supplied to the left / right direction control push cylinder 46 as shown in FIG.
The pressure relief valve 5 provided on the lower side of the left and right equalizer cylinders 48a and 48b after the stroke operation of a and 46b.
2a and the equalizer valve 52b are switched and controlled to an open position, and oil is fed from these respective valves 52a and 52b to the left and right equalizer cylinders 48a and 48b through the left and right check valves 53a and 53b, and these The left and right equalizer cylinders 48a and 48b are configured to perform a stroke operation. The used hydraulic oil is returned to the hydraulic tank 49.

When the traveling direction switching lever 26 is tilted, the hydraulic oil is controlled so that the power steering valve 52c, the depressurizing valve 52a and the equalizer valve 52b are switched to open, and the left and right check valves 53a and 53b are controlled. Oil is fed to the left and right equalizer cylinders 48a and 48b through the
Is a stroke-operated structure. The used hydraulic oil is returned to the hydraulic tank 49.

The telescopic cylinder 17 and the auger cylinder 5
5a, the left and right rolling cylinders 8a and 8b, and the pitching cylinder 55b do not operate, the hydraulic oil from the hydraulic continuously variable transmission 24 is filtered by the filter 50a, the pump 50c, the filter 50b, as shown in FIG. From the priority flow dividing valve 50d, the check valve 53c, and the relief valve 53d,
It is configured to be returned to the hydraulic tank 49 through the pipe 53e.

The telescopic cylinder 17 and the auger cylinder 5
5a, the left / right low rig cylinders 8a, 8b, and the pitching cylinder 55b, when one or more of them are operated, the respective cylinders 17, 55a, 8a, 8b, 5 to be operated
Electromagnetic switching valves 54a, 54 provided at the front stage of 5b
b, 54c, 54d, 54e are controlled to switch to the open position,
The hydraulic oil from the hydraulic continuously variable transmission 24 is supplied to the filter 50.
a, pump 50c, filter 50b, priority flow dividing valve 50d
To operate each cylinder 17, 55a, 8a, 8
b, 55b electromagnetic switching valves 54a, 54 at the front stage
b, 54c, 54d, 54e, then the oil is sent to each cylinder 17, 55a, 8a, 8b, 55b to be operated,
Each of these cylinders 17, 55a, 8a, 8b, 55b is configured to perform a stroke operation.

When the traveling device 3 stops traveling, the lifting cylinder 17, the left / right rolling cylinders 8a, 8b, the left / right equalizer cylinders 48a, 48b, etc. are individually operated as shown in the hydraulic circuit diagram of FIG. Controlled,
The configuration is such that the traveling chassis 2 that form the machine body 1a, the reaper 10, and the like are controlled to be lifted.

As shown in FIGS. 13 and 14, a drive brake pedal 22 is provided on the left side and a take-in pedal 7 is provided on the right side on both left and right sides of the sub-step 2b provided on the upper side surface of the traveling chassis 2. Is. This take-in pedal 7 is shown in FIG.
As shown by 4, a support plate 7c having a substantially dog-legged side view, in which a step plate 7d is fixed to the upper end, is rotatably supported by a scraping pedal shaft 7a.

An upper portion of the step board 7d of the take-in pedal 7;
Gap (L) at the height position with the upper side surface of sub-step 2b
Is a structure in which the step board 7d is located at a position lower by a predetermined dimension than the sub-step 2b, or provided at substantially the same height position.
As a result, when the stepping plate 7d of the take-in pedal 7 is operated, the stepping-in operation of the take-in pedal 7 can be performed by moving the stepping plate 7d laterally without raising the foot from the sub-step 2b. Also, when placing your foot in sub-step 2b,
I no longer step on the take-in pedal 7.

The support plate 7c of the take-in pedal 7 is shown in FIG.
As shown in FIG. 14, the stepping plate 7d is formed in a substantially V-shape when viewed from the side, and when the take-in pedal 7 is stepped on, the step plate 7d is pivotally moved to the lower front side as shown in FIG.
As a result, when the take-in pedal 7 is depressed, the take-in pedal 7 pivotally moves to the lower front,
Even if the user makes an accidental stepping operation, the foot moves forward so that the operator can quickly notice it. Therefore, the operator does not have to make an accidental stepping operation, and the work can be performed safely.
In addition, erroneous operation can be prevented.

The engine start restraint device 56 is provided with an auxiliary gear shift neutrality detection switch 56b for detecting the neutral position of the auxiliary gear shift lever 25b as shown in FIGS.
This is a configuration in which a parking brake switch 56a for detecting the depression operation of the parking brake pedal 22 is provided. The parking brake switch 56a and the auxiliary shift neutrality detection switch 56b may be detection sensors.

The parking brake pedal 22 is stepped on to turn on the parking brake switch 56a, the auxiliary shift lever 25b is moved to the neutral position, and the auxiliary shift neutrality detection switch 56b is turned on. 56b and ON detection of the engine start switch 23a for starting the engine 23 are input to the control device 20a, these inputs start the engine starter 23b for starting the engine 23. , The engine 23 is controlled to be started.

As a result, the engine 23 will not start unless the sub-transmission lever 25b is returned to the neutral position, which is safe. The engine start restraint device 56 has a main gear shift neutral detection switch 5 for detecting the neutral position of the main gear shift lever 25a as shown in FIGS.
6c is provided, and a parking brake switch 56a for detecting the depression operation of the parking brake pedal 22 is provided.

When the parking brake switch 56a is turned on and the main gear shift neutrality detection switch 56c is turned on, the ON detection of each of these switches 56a and 56c is detected.
When the detection of the ON of the engine start switch 23a is input to the control device 20a, the input causes the engine 2
The engine starter 23b for starting 3 is started,
This is a configuration for controlling the start of the engine 23.

As a result, the engine 23 is not started unless the operation of returning the main transmission lever 25a to the neutral position is performed, which is safe. Take-in pedal restraint device 5
Reference numeral 7 denotes an O of the take-in pedal switch 33 which is turned on by the stepping-in operation of the take-in pedal 7 as shown in FIGS. 1, 17, and 18.
The N detection and the vehicle speed sensor 4a provided in the traveling mission case 4 detect that the machine body 1a is not detected to move forward or backward and is in a stopped state, and these detections are input to the control device 20a. With this input, the take-in valve 51a is operated to control the machine body 1a in the stopped state.

As a result, if the scraping pedal 7 is erroneously depressed during the harvesting operation, the machine body 1a will be stopped, which is dangerous. If the operator notices an erroneous operation after stopping and releases the depression, the body 1a suddenly starts to move, which is dangerous. Therefore, if the raking mechanism is activated only when the machine body 1a is stopped, the work can be performed safely.

The take-in pedal restraint device 57 is shown in FIG.
As shown in FIG. 16, the main gear shift neutral detection switch 56c for detecting the neutral position of the main gear shift lever 25a detects neutral when the switch is in the ON state, and is turned ON when the scraping pedal 7 is depressed.
The scraping pedal switch 33 is turned ON, and the ON detection of these switches 56c and the ON detection of the switch 33 are input to the control device 20a. By this input, the scraping valve 51b is operated, and the fuselage 1a is turned on. This is a configuration for controlling to a stopped state.

As a result, if the scraping pedal 7 is erroneously depressed during the harvesting operation, the machine body 1a will stop, which is dangerous. If the operator notices an erroneous operation after stopping and releases the depression, the body 1a suddenly starts to move, which is dangerous. Therefore, the work can be performed safely if the scraping mechanism operates only when the main transmission lever 25a is in the neutral state.

The take-in pedal restraint device 57 is shown in FIG.
And, as shown in FIG. 16, depress and operate the take-in pedal 7,
After the machine body 1a is stopped and the scraping operation is performed, the main transmission lever 25a is returned to the neutral position (at this time, the operation position of the main transmission lever 25a is operated to the forward side).
When the main gear shift neutrality detection switch 56c is ON, neutrality is detected, and the ON detection of this switch 56c is performed by the control device 20a.
If it is not input, the machine body 1a will not move (the intake valve 51
b remains active) configuration.

As a result, after stopping the machine body 1a, the take-in pedal 7 is not returned to the neutral position of the main transmission lever 25a.
When the stepping operation of is released, there is a risk that the aircraft 1a will suddenly move forward and plunge into the ridge or fall from the aircraft 1a. However, unless the main speed change lever 25a is returned to the neutral position, the aircraft 1a By not moving, the harvesting work can be done safely.

The sub-step 2b includes steps from FIG. 19 to FIG.
As shown by 4, the step top plate 58 has a substantially V-shape when viewed from the side, and side plates 58a are fixedly provided on both left and right sides, and front support plates 59 are provided on the front portions of the side plates 58a, 58a.
a and 59a are rotatably attached by pins 59b and 59b, and the rear support plate 5 is U-shaped.
9c is rotatably mounted by pins 59b and 59b. Further, a connecting rod 59d is provided at a lower portion between the front supporting plate 59a and the rear supporting plate 59c and is connected to the rear supporting plate 59c.

The rear support plate 59c is shown in FIG.
And bolt the auxiliary support plate 60 as shown in FIG.
It is mounted by using a nut and the like. When the sub-step 2b is used in a low state, FIG. 19 and FIG.
As shown by 1, the auxiliary support plate 60 has a low height (H1) mounted on the upper surface of the rear support plate 59c with bolts and nuts. In addition, when storing in a low state, as shown in FIG. 22, the front support plates 59a, 59a are
The pins 59b, 59b are pivoted upward to pivot.

When the sub-step 2b is used in a high state, the auxiliary support plate 60 is bolted to the lower surface of the rear support plate 59c, as shown in FIGS.
And a nut to mount it to a high height (H2). In addition, when stored in a high state, as shown in FIG. 24, the pins 59b and 59b of the front support plates 59a and 59a are pivoted upward to pivot.

The auxiliary support plate 60 is provided with a pivotal fulcrum portion projecting rearward, and the pivotal fulcrum portion is supported by a fulcrum receiving plate provided on the rear support plate 59c, so that the auxiliary support plate 60 is rearwardly supported. As a configuration in which the support plate 59c is pivotally moved to the upper side or the lower side to be positioned on the upper side or the lower side, the vertical height of the sub-step 2b may be changed.

Since the vertical height position of the sub-step 2b can be changed, even if the vertical height position of the cockpit 21 is changed, the foot does not reach the sub-step 2b. In addition, it is possible to prevent the driver's foot fatigue.

[Brief description of drawings]

[Figure 1] Overall side view of combine

FIG. 2 is an enlarged side view of the traveling device section.

FIG. 3 is an enlarged side view of the traveling device section.

FIG. 4 is an enlarged side view of a wheel portion of the traveling device.

FIG. 5 is an enlarged plan view of the operation unit.

FIG. 6 is an enlarged side view of the operation unit.

FIG. 7 is an enlarged rear perspective view of the operating device section.

FIG. 8 is an enlarged side view of the operation section and the take-in cable section.

FIG. 9 is an enlarged back cross-sectional view of the traveling mission case portion.

FIG. 10 is an enlarged side view of the right side portion of the traveling mission case portion.

FIG. 11 is an enlarged side view of the left side portion of the traveling mission case portion.

[Fig. 12] Hydraulic circuit diagram

FIG. 13 is a view showing another embodiment, and is an enlarged rear perspective view of the sub-step portion and the take-in pedal portion.

FIG. 14 is a view showing another embodiment, which is an enlarged side view of a sub-step portion and a take-in pedal portion.

FIG. 15 is a view showing another embodiment, and is an enlarged rear perspective view of an engine start restraint device and a take-in pedal restraint device portion.

FIG. 16 is a block diagram showing another embodiment.

FIG. 17 is a view showing another embodiment, which is an enlarged rear view of the take-in pedal restraint device portion.

FIG. 18 is a block diagram showing another embodiment.

FIG. 19 is a view showing another embodiment, which is an enlarged rear perspective view of the sub-step during low use.

FIG. 20 is a view showing another embodiment, and is an enlarged rear perspective view of the sub-step during high usage.

FIG. 21 is a view showing another embodiment, which is a side view of the sub-step during low use.

FIG. 22 is a side view of the sub-step when the sub-step is stored low, showing another embodiment.

FIG. 23 is a view showing another embodiment, which is a side view of the sub-step during high use.

FIG. 24 is a view showing another embodiment, which is a side view of the sub-step when it is highly housed.

[Explanation of symbols]

1a Airframe 2 vehicle chassis 3 traveling devices 3a traveling crawler 4 Running mission case 6a Left side clutch 6b Right side clutch 7 Take-in pedal 8a Left rolling cylinder 8b Right rolling cylinder 17 Lifting cylinder 20a control device 31e Rolling wheel 48a Left equalizer cylinder 48b Right equalizer cylinder

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 2B076 AA03 BA05 BA07 BB08 CA03                       CC02 CC14 DA02 DB04 DB06                       DC02 DD01 DD02 EA02 EB05                       EC19 ED16 ED30

Claims (3)

[Claims] 1. A traveling device 3 on both left and right sides of a lower side of a traveling chassis 2.
And the left side of the front of the traveling chassis 2 that drives the traveling device 3 to rotate.
Turn on the transmission mission case 4 with the right side clutches 6a, 6b, etc., and the left and right side clutches 6a, 6b.
In a combine provided with a scraping pedal 7 for running or stopping running by operating "off", the left and right side clutches 6a, 6b are "off" controlled by depressing the scraping pedal 7. At the same time, the combine traveling control device is characterized in that a control device 20a is provided to control the lifting cylinder 17 that controls the lifting and lowering of the machine body 1a by the control device 20a to control the lifting and lowering of the machine body 1a. 2. The depression operation of the scraping pedal 7 causes the left
The right side clutches 6a and 6b are "off" controlled,
The control device 20a is provided in order to control the left and right rolling cylinders 8a, 8b for controlling the rolling of the traveling device 3 by the control device 20a so as to control the raising of the machine body 1a. Combine operation control device. 3. When the rudder pedal 7 is depressed,
The right side clutches 6a and 6b are "off" controlled,
The control device 20a controls the operation of the left and right equalizer cylinders 48a and 48b that control the movement of the rollers 31e for the traveling crawler 3a of the traveling device 3 to control the raising of the machine body 1a. The traveling operation device for a combine according to claim 1 or 2, characterized in that.