JP2024005506A - Combine-harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combine-harvester in which a rear part of a side panel is rotatably supported, and which allows a user to easily visually confirm a state of grain culm clogging in a conveyance device of a reaping device by changing an attitude from an operation attitude in which the side panel extends in a front-rear direction to an opening attitude in which the side panel extends in an up-down direction.

SOLUTION: A combine-harvester comprises: a travel device which is provided on a lower side of a machine body frame; a reaping device which is provided on a front side of the machine body frame and reaps grain culm; a thresher which is provided on a rear left side of the reaping device and threshes the grain culm; a steering unit which is provided on a rear right side of the reaping device; a transmission mechanism which changes output rotation of an engine to output the output rotation to the travel device; a front panel which is provided on a front side of a steering seat of the steering unit; a side panel which is provided on a left side of the steering seat; a speed change lever which operates the transmission mechanism to change the output rotation of the engine in the side panel; and a mode change operation unit 90. The mode change operation unit includes an operation part 91 which can change a transmission ratio of the transmission mechanism and a display part which is arranged at a position closer to a worker with respect to the operation part.

SELECTED DRAWING: Figure 28

COPYRIGHT: (C)2024,JPO&INPIT

Description

The present invention provides a front panel equipped with an operation lever for raising and lowering the reaping device in front of the driver's seat, and a side panel equipped with a mode select switch for changing the work mode etc. according to the planting state of the grain culm on the left side. It is related to combines.

Conventionally, the side panel provided on the left side of the cockpit is formed by a side panel section that extends horizontally in the front-back and left-right directions, and a control panel section that is sloped upward to the left from the left end of the side panel section. The side panel is equipped with a speed change lever that increases or slows down the traveling speed of the traveling device, a reaping lever that operates the threshing clutch, etc., and the control panel includes a work light switch that turns on the work light and a control lever that controls the depth of handling of the reaping device. It is known to provide a handling depth dial for adjusting the depth.

Japanese Patent Application Publication No. 2008-104387

However, the method disclosed in Patent Document 1 has a problem in that the operation of the threshing clutch and the like is complicated.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a combine harvester that allows easy operation and confirmation of the combine harvester from a side panel.

The present invention that solves the above problems is as follows.

That is, the invention according to claim 1 provides a traveling device (2) on the lower side of a body frame (1) on which an engine (E) is mounted, and harvests grain culms in a field on the front side of the body frame (1). A reaping device (3) is provided, a threshing device (4) for threshing grain culms is provided on the rear left side of the reaping device (3), and a control section (5) on which an operator rides is provided on the rear right side of the reaping device (3). ) and is provided with a transmission mechanism that changes the output rotation of the engine (E) and outputs it to the traveling device (2), in a combine harvester provided with a transmission mechanism that changes the output rotation of the engine (E) and outputs it to the traveling device (2). A front panel (11) is provided, a side panel (20) is provided on the left side of the cockpit (10), and the side panel (20) is provided with a speed change mechanism for operating a speed change mechanism that changes the output rotation of the engine (E). A lever (24) and a mode change operation section (90) are provided, and the mode change operation section (90) includes an operation section (91) that can change the gear ratio of the transmission mechanism, and a mode change operation section (90) that can change the gear ratio of the transmission mechanism. This is also a combine harvester that includes a display section (92) located near the operator.

In the invention according to claim 2, the mode change operation section (90) includes a first switch (91A) for increasing the traveling speed of the traveling device (2), and a first switch (91A) for increasing the traveling speed of the traveling device (2). A second switch (91B) is provided to drive the traveling device (2), the reaping device (3), and the threshing device (4) when the first switch (91A) is operated for a predetermined time. The mode is changed from the mode to the field traveling mode, in which the traveling device (2) is driven and the reaping device (3) and the threshing device (4) are stopped, and the second switch (91B) 2. The combine harvester according to claim 1, wherein when the combine harvester is operated for a predetermined time, the mode is changed from the field driving mode to the work mode.

In the invention according to claim 3, the working mode is a first working mode in which the traveling speed of the traveling device (2) is high, and a second working mode in which the traveling speed of the traveling device (2) is medium speed. When the running speed of the traveling device (2) is set in the third working mode at a low speed, and the second switch (91B) is operated to change the mode from the second working mode to the third working mode, The combine harvester according to claim 2, wherein the reaping speed of the reaping device (3) is switched from low speed to medium speed or high speed.

The invention according to claim 4 provides a third switch (91C) between the first switch (91A) and the second switch (91B), and when the third switch (91C) is operated, When the driving of the reaping device (3) and the threshing device (4) is stopped and the third switch (91C) is operated for a predetermined time, the reaping device (3) and the threshing device (4) are driven. 4. The combine harvester according to claim 3, wherein the combine harvester has a configuration in which:

According to the invention described in claim 1, it is possible to easily confirm the operation result of the operation section (91).

According to the invention set forth in claim 2, in addition to the effect provided by the invention set forth in claim 1, the mode can be changed while preventing erroneous operations by the operator. In addition, the traveling speed of the traveling device (2) can be set at a high speed to quickly move between fields.

According to the third aspect of the invention, grain culms lying down in the field can be efficiently raised and harvested using the raising device of the reaping device (3).

According to the fourth aspect of the invention, the reaping device (3) and the threshing device (4) can be driven while preventing erroneous operations by the operator.

It is a left side view of a combine. It is a right view of a combine. FIG. 3 is a plan view of the control section. FIG. 3 is a front perspective view of the cockpit and side panel. FIG. 3 is a front view of the cockpit and side panel. FIG. 3 is a plan view of the side panel. FIG. 3 is a right side view of the side panel. FIG. 3 is a right side view of the side panel with the cover removed. FIG. 3 is a left side view of the side panel. FIG. 3 is a front view of the side panel. FIG. 3 is a rear view of the side panel. It is a rear perspective view of a cockpit, a side panel, and an elevating plate. It is a rear perspective view of a side panel and a lift plate. FIG. 3 is a right side view of the side panel and the lifting plate. FIG. 3 is a front perspective view of the control section, with the side panel in the control position. FIG. 3 is a right side view of the control section, with the side panel in the control position. FIG. 3 is a front perspective view of the control unit with the side panel in an open position. FIG. 3 is a right side view of the control unit with the side panel in an open position. FIG. 6 is a left side view of the side panel and the lifting plate in the control position. FIG. 3 is a rear view of the cockpit, the side panel, and the lift plate in the pilot position. FIG. 3 is a left side view of the side panel and the lifting plate in an open position. FIG. 3 is a rear view of the cockpit, the side panel, and the lift plate in the pilot position. It is a transmission diagram of the output rotation of an engine. FIG. 3 is a plan view of the control unit with the monitor removed. FIG. 3 is a left side view of a side panel supported on the left wall of the control section. FIG. 3 is a right side view of a side panel supported on the left wall of the control section. FIG. 3 is a front perspective view of the handle lever and side panel of the control unit. FIG. 3 is a plan view of a mode select switch. FIG. 3 is an explanatory diagram of the display unit in standard work mode. FIG. 3 is an explanatory diagram of a display unit in a standard low-speed work mode. It is an explanatory view of a display part in lodging work mode. FIG. 3 is an explanatory diagram of the display unit in the field movement mode.

As shown in FIGS. 1 and 2, the combine harvester is equipped with a traveling device 2 consisting of a pair of left and right crawlers that runs on the soil surface under the body frame 1, and on the front side of the body frame 1 to harvest grain culms in the field. A reaping device 3 is provided, a threshing device 4 for threshing and sorting the harvested grain culms is provided on the rear left side of the reaping device 3, and a control section 5 on which a worker rides is provided on the rear right side of the reaping device 3. ing.

An engine room 6 in which an engine E is mounted is provided below the control section 5, and a grain tank 7 for storing threshed and sorted grains is provided at the rear of the control section 5. A discharge auger 8 is provided on the rear side, which includes a grain lifting section extending in the vertical direction for discharging grains to the outside, and a lateral discharge extending in the front and rear direction.

As shown in FIGS. 3 to 5, a front panel 11 is provided in front of the pilot's seat 10 of the pilot section 5. As shown in FIGS. A rod 12 extending in the left-right direction is provided on the upper side of the front panel 11 and is gripped by the operator to maintain the operating posture, and an operating lever for raising and lowering the reaping device 3 is provided on the right side of the front panel 11. 13 are provided.

A side panel 20 is provided on the left side of the pilot's seat 10 of the pilot section 5. The side panel 20 is formed from a side panel section ("first panel section" in the claims) 21 extending in the front-rear direction and a control panel section 22 provided on the left side of the side panel section 21. The lower part of is covered with a cover 23. Further, on the front side of the side panel portion 21, a monitor 15 that displays the rotational speed of the output rotation of the engine E, etc. is provided. In this embodiment, the side panel section 21 and the control panel section 22 are formed integrally, but they can also be formed separately.

A gear shift lever 24 is provided at the front of the side panel section 21 to operate a hydraulic continuously variable transmission 16 that increases/decelerates the output rotation of the engine E and switches the rotation direction. A mode select lever 25 is provided for operating a transmission 17 that increases and decelerates the output rotation of the hydraulic continuously variable transmission 16 and a reaping clutch 18 and a threshing clutch 19 that are provided in the transmission path of the output rotation of the engine E. .

When the shift lever 24 is placed in the neutral position, the output rotation of the hydraulic continuously variable transmission 16 becomes zero. When the gear shift lever 24 is moved from the neutral position to the forward tilted position, the rotation direction of the output rotation of the hydraulic continuously variable transmission 16 becomes the same forward rotation as the output rotation direction of the engine E, and the tilt angle of the front tilted position is changed. When it is increased, the output rotation of the hydraulic continuously variable transmission 16 becomes high speed, and when the inclination angle of the front side tilted position is made small, the output rotation of the hydraulic continuously variable transmission 16 becomes low. When the gear shift lever 24 is moved from the neutral position to the rear tilted position, the rotational direction of the output rotation of the hydraulic continuously variable transmission 16 is the opposite rotation direction of the output rotation of the engine E, and the rotation direction of the output rotation of the hydraulic continuously variable transmission 16 is the opposite rotation direction. When the inclination angle is increased, the output rotation of the hydraulic continuously variable transmission 16 becomes high speed, and when the inclination angle of the rear side inclination position is decreased, the output rotation of the hydraulic continuously variable transmission 16 becomes low speed.

When the mode select lever 25 is in the forward tilted position, the reaping clutch 18 and the threshing clutch 19 are disconnected and the driving of the reaping device 3 and the threshing device 4 is stopped. When the mode select lever 25 is in the neutral position, the reaping clutch 18 is connected and the reaping device 3 is driven, and the threshing clutch 19 is continuously disconnected and the driving of the threshing device 4 is continuously stopped.
When the mode select lever 25 is in the rearward tilted position, the threshing clutch 19 is connected and the threshing device 4 is driven, and the reaping clutch 18 is still connected and the reaping device 3 is continuously driven.

Furthermore, when the mode select lever 25 is in the neutral position, the output rotation of the hydraulic continuously variable transmission 16 transmitted to the transmission 17 is transmitted to the traveling device 2 without being increased or decreased; is decelerated and transmitted to the traveling device 2, and when the vehicle is in the rearward tilted position, the speed is increased and transmitted to the traveling device 2.

A protective cover 50 that protects electrical equipment 52 provided on the right side of the left wall 61 of the cabin 60 is provided on the lower left side of the control panel section ("second panel section" in the claims) 22. As a result, a plurality of electrical components 52 can be gathered and provided in one place, so that the wiring work can be easily performed and the electrical components 52 can be easily replaced.

As shown in FIG. 6, a switch 26A for switching the reaping height of the reaping device 3 is provided in a switch region 26 facing the speed change lever 24 in the control panel section 22, and a switch 26A for switching the reaping height of the reaping device 3 is provided in the switch region 26 facing the speed change lever 24 in the control panel section 22. A dial 27A for raising and lowering the temperature inside the cabin 60 is provided in the dial area 27 facing the . As a result, the operator can easily operate the switch 26A and dial 27A without having to bend forward and take his hands off the gear shift lever 24 and mode select lever 25, thereby improving operational safety and operability. Can be done.

As shown in FIG. 7, the length of the portion of the mode select lever 25 that extends upward from the side panel portion 21 is shorter than the length of the portion of the shift lever 24 that extends upward from the side panel portion 21. ing. Thereby, it is possible to prevent the operator's field of view from being blocked by the mode select lever 25.

The length of the switch area 26 in the front-rear direction is longer than the length of the dial area 27 in the front-rear direction, and the length of the switch area 26 in the up-down direction is longer than the length of the dial area 27 in the up-down direction. There is. Thereby, the switch 26A having a large operation part can be provided in the switch area 26, and the operability can be further improved. Further, since the upper side of the protective cover 50 can be covered with the switch region 26, it is possible to prevent dust and the like from accumulating on the protective cover 50.

As shown in FIG. 8, the base of the shift lever 24 is swingably fixed to the front part of the hanging portion 21A extending downward from the left end of the side panel section 21, and the swing angle of the shift lever 24 is The angle is measured by an angle sensor 24A such as a potentiometer. Further, a base portion of a mode select lever 25 is swingably fixed to the rear portion of the hanging portion 21A, and the swing angle of the mode select lever 25 is determined by an angle sensor 25A such as a potentiometer.

In side view, the plurality of dials 27A provided in the dial area 27 are provided at predetermined intervals on the imaginary line L inclined backwardly, and the dials 27A provided in the front part of the dial area 27 are arranged on the front side. It is provided at a position overlapping the grip portion of the mode select lever 25 in the tilted position. Thereby, the operator can take his hand off the mode select lever 25 and operate the dial 27A more easily without having to bend forward. In addition, in this embodiment, the dial 27A provided in the middle part of the dial area 27 is provided in a position overlapping the grip part of the mode select lever 25 in the neutral posture, and the dial 27A provided in the rear part of the dial area 27 is provided in a position that overlaps with the grip part of the mode select lever 25 in the neutral posture. It is provided at a position overlapping the grip portion of the mode select lever 25 when the mode select lever 25 is in the rearward tilted position.

The front side portion of the side panel portion 21, that is, the portion where the groove through which the gear shift lever 24 is inserted is formed, is formed substantially horizontally. Further, the rear side portion of the side panel portion 21, that is, the portion where the groove through which the mode select lever 25 is inserted is formed, is formed to be sloped gently downward toward the rear. Thereby, the grip portion of the mode select lever 25 in the neutral position or the rear inclined position can be positioned a predetermined length above the upper surface of the rear side portion of the side panel portion 21.

As shown in FIG. 9, the upper part of the hanging portion 21A of the side panel portion 21 is fixed to a front-rear frame 30 made of a square pipe extending in the front-rear direction. Further, the rear part of the front and rear frames 30 is fixed to the upper part of the right side of a swing plate 32 which is rotatably fixed to a support shaft ("first support shaft" in the claims) 31. As a result, the side panel 20 can be swung around the support shaft 31 to move the side panel 20 to an operating position where the longitudinal direction of the side panel 20 is along the front-back direction and an open position where the longitudinal direction of the side panel 20 is along the up-down direction. Can be done.

The swing plate 32 includes a plate portion 32A that is rotatably fixed to the support shaft 31 and extends in the front and rear and up and down directions, and a rib portion 32B that stands upright in the middle part of the left surface of the plate portion 32A in the front and back direction. The rear part of the front and rear frame 30 is fixed to the left end part of the rib part 32B. Thereby, deformation of the swing plate 32 can be suppressed and the side panel 20 can be smoothly rocked.

A connecting member 33 extending downward at a predetermined interval in the front-rear direction is provided on the lower surface of the front-rear frame 30, and a front-rear pipe 34 made of a round pipe extending in the front-rear direction is provided at the lower part of the connecting member 33. is provided. Further, the rear part of the front and rear pipe 34 is fixed to the front lower part of the right surface of the swing plate 32 after being curved to the right. In this embodiment, the connecting member 33 is provided horizontally in the front-rear direction, but it may also be provided in a downwardly inclined direction.

The lower surface of the monitor 15 is fixed to the front part of a bendable support pipe 36 via a pin 35 extending in the left-right direction. Further, the rear part of the support pipe 36 is fixed to the front part of the front and rear pipe 34. As a result, the monitor 15 is moved in conjunction with the side panel 20 around the support shaft 31, and the monitor 15 is moved to an operating position in front of the side panel 20 and an open position in which the monitor 15 is located above the side panel 20. can be done.

As shown in FIGS. 10 and 11, the hanging portion 21A of the side panel portion 21 is provided in a rightward inclined position with the upper portion located on the right side than the lower portion. As a result, the side panel portion 21 is formed with a gentle downward slope to the right, and the gear shift lever 24 and mode select lever 25 can be provided in a right-side inclined position with the upper part located on the right side than the lower part, so that the operator can , the speed change lever 24 and the mode select lever 25 can be easily operated without having to bend forward.

The intersecting angle between the side panel section 21 and the control panel section 22 is approximately 115 degrees. Thereby, the operator can easily see the switch 26A provided in the switch area 26 of the control panel section 22 and the dial 27A provided in the dial area 27, and can suppress erroneous operation of the switch 26A, etc. .

The upper end of the control panel section 22 is formed at approximately the same height as the upper end of the speed change lever 24 in the neutral position. Further, the upper end of the monitor 15 is formed at approximately the same height as the upper end of the shift lever 24 in the neutral position, and a switch for switching the display screen of the monitor 15 is provided at the lower part of the monitor 15. . This allows the operator to more easily operate the switches 26A and the like provided in the switch area 26 of the control panel section 22 without having to bend forward.

As shown in FIGS. 12 and 13, the cockpit 10 includes a support member extending in the left-right direction that connects the front portions of a pair of left and right support members 40A extending in the front-rear direction of a movable frame 40 that is movable in the front-rear direction. 40B, and a support member 40C erected at the rear of a pair of left and right support members 40A.

The movable frame 40 is slidably mounted on the upper surfaces of a pair of left and right fixed frames 41 made of angle members that extend in the front-rear direction below the movable frame 40 .

The pair of left and right fixed frames 41 are fixed to a rectangular elevating plate 42, and the elevating plate 42 is supported by an elevating device 43 having a rod that moves up and down in the vertical direction. Further, a lever 44 for maintaining and releasing the maintenance of the position of the pilot's seat 10 is provided at the front right side of the movable frame 40 on the elevating plate 42. Thereby, the operator can move the operator's seat 10 to a position that suits his/her body shape by moving the operator's seat 10 in the longitudinal direction and the vertical direction.

A connecting member 45 extending in the left-right direction is provided at the rear of a pair of left and right fixed frames 41 provided on the lifting plate 42 that moves up and down in the up-down direction. The connecting member 45 includes a left and right extending portion 45A that extends in the left and right direction between the pair of left and right fixed frames 41, and a left and right extending portion 45A that extends leftward from the left fixed frame 41 and then curves upward by approximately 90 degrees and extends upward. It is formed from a vertically extending portion 45B.

A support shaft 31 extending in the left-right direction is provided at the top of the vertically extending portion 45B. A collar 46 for preventing the swing plate 32 externally fitted onto the support shaft 31 from falling off, and a fastening member 47 such as a nut for fixing the collar 46 to the support shaft 31 are provided on the left side of the support shaft 31. . Furthermore, a regulation plate 48 is provided on the right side of the support shaft 31 to regulate the swing angle of the side panel 20. As a result, the operator's seat 10 and the side panel 20 move in conjunction with each other in the vertical direction, and even if the operator's seat 10 is moved in the front-back direction, the side panel 20 does not move in conjunction with each other, so that the operator can easily check his or her body shape. The cockpit 10 can be easily moved to a suitable position.

In this embodiment, the movable frame 40, the fixed frame 41, and the elevating plate 42 are collectively referred to as a cockpit support member ("first cockpit support member" in the claims) 10A. Further, in this embodiment, the connecting member 45 on which the support shaft 31 is provided is provided at the rear of the pair of left and right fixed frames 41, but it can be provided on the pair of left and right support members 40A of the movable frame 40. Thereby, the cockpit 10 and the side panel 20 can be moved in conjunction with each other in the vertical and longitudinal directions.

As shown in FIG. 14, a circumferential groove 48A having a predetermined length is formed in a portion of the regulation plate 48 that is spaced apart by a predetermined radius around the support shaft 31. A right portion of a pin 29 provided at the bottom of the cup holder 28 and extending in the left-right direction is inserted. This can prevent the side panel 20 from swinging excessively into the open position. The attitude of the side panel 20 is measured by a sensor 49 provided on the left side of the regulation plate 48, and when the side panel 20 is moved to the operating attitude and the distance between the sensor 49 and the pin 29 becomes less than a predetermined distance, the sensor 49 When the side panel 20 is moved to the open position and the distance between the sensor 49 and the pin 29 exceeds a predetermined distance, an OFF signal is input from the sensor 49 to the controller 52D.

As shown in FIGS. 15 and 16, when the side panel 20 is positioned in the operating position extending in the front-rear direction, the electrical components 52 provided on the right side of the left wall 61 of the cabin 60 can be moved by the side panel 20. covered. This can prevent the operator from accidentally touching the electrical component 52, and can prevent the harness connected to the electrical component 52 from being disconnected.

As shown in FIGS. 17 and 18, when the side panel 20 is positioned in an open position extending in the vertical direction, a large space is formed on the left side of the operator. Thereby, the operator can lean out from the hatch 62 on the left side of the cabin 60 and easily check whether the grain culm of the reaping device 3 is clogged. Further, the electrical equipment 52 provided on the right side of the left wall 61 of the cabin 60 is exposed. Thereby, the operator can easily remove the protective cover 50 and perform maintenance/replacement work on the electrical component 52.

The electrical equipment 52 is provided on a power distribution plate 51 attached to the left wall 61 of the cabin 60. On the upper part of the power distribution plate 51, a fuse 52A, a small relay 52B, and a large relay 52C are provided in order from the front side, and a controller 52D is provided below the fuse 52A and the small relay 52B. Further, in the vertical direction, a power line 53 is arranged between the fuse 52A, etc. and the controller 52D, which supplies electricity to the small relay 52B, etc. extending in the front-back direction. Thereby, the work of arranging the power supply line 53 etc. can be easily performed, and the work of replacing the malfunctioning fuse 52A etc. can be easily performed.

As shown in FIGS. 19 and 20, a hollow portion 31A is formed in the center of the support shaft 31, and a harness 37 for connecting the switch 26A, the monitor 15, and the controller 52D is inserted through the hollow portion 31A. Thereby, the side panel 20 can be smoothly moved from the operating position to the open position, etc., and disconnection of the harness 37 can also be suppressed.

The vertically extending portion 45B of the connecting member 45 is formed to extend leftward from the left fixed frame 41 and then extend upwardly for a predetermined length. As a result, when the side panel 20 is positioned in an operating posture extending in the front-rear direction, the upper surface of the side panel portion 21 is provided at a position facing the elbow of the worker, and the worker The mode select lever 25 can be easily operated.

Further, when the side panel 20 is positioned in an operating posture extending in the front-rear direction, the right part of the side panel part 21 and the right part of the monitor 15 provided on the front side of the side panel 20 are It is provided so as to overlap the left side of the cockpit 10. Thereby, the length of the control section 5 in the left-right direction can be suppressed.

As shown in FIGS. 21 and 22, the vertically extending portion 45B of the connecting member 45 is formed to extend a predetermined length to the left from the left fixed frame 41. As shown in FIGS. As a result, when the side panel 20 is positioned in the open position extending in the vertical direction, the right part of the side panel part 21 and the left part of the cockpit 10 do not come into contact with each other, and the side panel part 21 is placed in the operating position. It can be moved from the position to the open position.

Furthermore, when the side panel 20 is positioned in the open position extending in the vertical direction, the gear shift lever 24 provided on the side panel 20 is positioned above the backrest of the cockpit 10 and is positioned on the front side of the side panel 20. The provided monitor 15 is located above the backrest of the cockpit 10.

<Transmission of engine output rotation>
As shown in FIG. 23, the output rotation of the engine E is transmitted to a hydraulic continuously variable transmission 16 and a transmission 17, which are transmission mechanisms that change the speed and output the rotational power of the engine E. The output rotation of the engine E, which is transmitted to the input shaft of the hydraulic continuously variable transmission 16, is increased or decreased within the hydraulic continuously variable transmission 16, and then output from the output shaft.

The output rotation of the output shaft of the hydraulic continuously variable transmission 16 is transmitted to the transmission 17.
The output rotation of the output shaft transmitted to the input shaft of the transmission 17 is increased/decelerated by the transmission 17 and outputted from the first output shaft and the second output shaft.

The output rotation of the first output shaft, which is increased or decreased by the gear transmission mechanism 17A in the transmission 17, is transmitted to the traveling device 2 and rotates the crawler of the traveling device 2.

The output rotation of the second output shaft, which is increased or decreased by the gear transmission mechanism 17A in the transmission 17 and the gear transmission mechanism 17B provided downstream thereof, is transmitted to the reaping device 3 via the reaping clutch 18. drive the lifting device, cutting device, etc.

As a result, the traveling speed of the traveling device 2 and the reaping speed of the reaping device 3 can be increased or decreased simultaneously by operating the speed change lever 24, so that the traveling speed of the traveling device 2 can be increased or decreased by operating the speed change lever 24 according to the lodging state of grain culms in the field. Grain culms can be harvested efficiently by increasing or decreasing the traveling speed of the machine and the reaping speed of the reaping device 3.

Further, the output rotation of the engine E is transmitted to the threshing device 4 via the threshing clutch 19 provided on the second path B.

When the side panel 20 is moved from the operating position to the open position, the output signal of the sensor 49 is turned OFF, and the starting of the engine E is restricted and cannot be driven. Further, when the output signal of the sensor 49 turns OFF while the engine E is being driven, the driving of the engine E is stopped. Thereby, with the side panel 20 in an open position, it is possible to safely perform maintenance and replacement work on the electrical component 52 by preventing erroneous operations such as sudden start of the traveling device 2 during maintenance and replacement work on the electrical component 52.

Further, when the output signal of the sensor 49 is turned OFF, it is preferable to stop driving the hydraulic continuously variable transmission 16 to restrict increase/deceleration of the output rotation of the engine E. Thereby, maintenance and replacement work of the electrical components 52 can be performed more safely.

<Other support forms for side panels>
As shown in FIGS. 24 and 25, a handlebar 70 is provided above the front panel 11 and extends in the left-right direction. The right part of is fixed to the right wall 64 of the control section 5. Thereby, the operator can easily operate the operating lever 13 by grasping the left side of the handlebar 70 and maintaining a bent-forward posture. Note that in this specification, the left wall 61 of the cabin 60 and the left wall 63 of the control section 5 are the same member.

A front portion of a support member 71 extending rearward from the handlebar 70 is provided at a portion of the handlebar 70 that faces the support pipe 36 of the side panel 20 . In side view, the support member 71 is formed into a substantially trapezoidal shape, and a guide groove 72 is formed at the rear of the upper side of the support member 71, the upper side being open and extending downward. Note that the guide groove 72 is preferably formed in an arc shape centered on the support shaft 31.

A pin 75 is provided at the front of the support pipe 36 of the side panel 20 and extends from the support pipe 36 toward the left side. When the side panel 20 is moved to the operating position, the pin 75 enters the guide groove 72 and comes into contact with the lower part of the guide groove 72. On the other hand, when the side panel 20 is moved to the open position, the pin 75 moves to the outside of the guide groove 72.

Thereby, the front part of the side panel 20 can be supported by the guide groove 72, and vibrations generated in the side panel 20 during traveling can be suppressed. Further, the length of the guide groove 72 in the vertical direction is formed such that when the pin 75 comes into contact with the lower part of the guide groove 72, the front and rear frames 30 of the side panel 20 become approximately horizontal when viewed from the side.

The length of the guide groove 72 in the vertical direction is such that when the pin 75 comes into contact with the lower part of the guide groove 72, the front and rear frames 30 of the side panel 20 become approximately horizontal when viewed from the side. Further, the right end of the pin 75 is formed with a narrow diameter part that is smaller in diameter than other parts, and the narrow diameter part is provided with a collar 76 and a fastening member 77 such as a bolt. A screw is formed into which the member 77 is screwed. This allows the pin 75 to enter the guide groove 72 and engage the pin 75 more firmly at the lower part of the guide groove 72, thereby making it possible to further suppress vibrations generated in the side panel 20 during running. In addition, the pin 75 is inserted into the guide groove 72 and the pin 75 is engaged with the guide groove 72 at a location other than the lower part of the guide groove 72 to easily adjust the inclination angle of the side panel 20 that is optimal for the operator. You can also do it.

As shown in FIGS. 26 and 27, on the left wall 63 of the control section 5, there is a cockpit support member ("second cockpit support member" in the claims) 80 made of channel steel that extends in the vertical direction. It is provided. A rectangular plate member 81 made of a steel plate is provided in the vertically intermediate portion of the right portion of the cockpit support member 80 .

A support shaft ("second support shaft" in the claims) 82 extending in the left-right direction is provided approximately in the center of the plate member 81, and the left side of the support shaft 82 is connected to the cockpit support member 80 and the plate member 81. The swing plate 32 is rotatably supported on the left side of the support shaft 82. This makes it possible to fix the side panel 20 to the left wall 63 of the control section 5 via the cockpit support member 80 and the like, thereby suppressing vibrations generated in the side panel 20 during driving. Furthermore, vibrations transmitted to the cockpit 10 via the side panel 20 can also be blocked.

Elongated holes having longitudinal axes in the vertical direction are formed in the upper and lower parts of the cockpit support member 80, and the cockpit support member 80 is fixed to the left wall 63 of the control section 5 by fastening means 83 such as bolts inserted into the elongated holes. .
Thereby, the vertical position of the side panel 20 can be adjusted by moving the cockpit support member 80 up and down.

In order to avoid the protrusion formed on the left wall 63, it is preferable that the cockpit support member 80 has a shape in which the vertically intermediate portion is located on the right side of the upper and lower parts when viewed from the rear. Further, on the right side of the support shaft 82, a collar 84 for preventing the swing plate 32 externally fitted onto the support shaft 82 from falling off, and a fastening member 85 such as a nut for fixing the collar 84 to the support shaft 82 are provided. ing.

<Mode select switch>
Instead of the mode select lever 25, a plate-shaped mode select panel ("mode change operation section" in the claims) 90 can be provided on the side panel section 21. Note that the shape of the mode select panel 90 is not limited to a plate shape, and any shape necessary for operation can be adopted. This makes it possible to further prevent the operator's view from being obstructed, and allows the side panel 20 to be placed in an open position extending vertically without worrying about contact between the cockpit 10 and the mode select lever 25. Can be easily positioned.

As shown in FIG. 28, an operating section 91 for changing the mode is provided on the left side of the mode select panel 90, and a display section 92 for displaying the traveling speed of the traveling device 2, etc. is provided on the right side. There is.

The operation unit 91 includes a mode switch 91A (the "first switch" in the claims) having a "△" printed on the surface for changing the mode, and a mode switch 91A having a "▽" printed on the surface for changing the mode. (“Second switch” in the claims) 91B, and a reaping switch (“Third switch” in the claims) 91C with “Reaping” printed on the surface that connects and disconnects the reaping clutch 18 and threshing clutch 19. It consists of Moreover, the reaping switch 91C is provided between the mode switch 91A and the mode switch 91B in the front-rear direction.

The display section 92 includes, in order from the front side, a speed display section 92A with "H" printed on the surface indicating that the traveling speed of the traveling device 2 is high, and a speed display section 92A indicating that the traveling speed of the traveling device 2 is medium speed. A speed display section 92B with "M" printed on the surface indicating that the traveling speed of the traveling device 2 is low, a speed display section 92C with "L" printed on the surface indicating that the traveling speed of the traveling device 2 is low, the reaping device 3 and the threshing device It is composed of a mowing display section 92D on which "cutting off" is printed on the surface indicating the driving state of No. 4.

There are two working modes: a work mode in which the reaping device 3 and threshing device 4 are driven to reap and thresh grain in the field, and a work mode in which the reaping device 3 and threshing device 4 are stopped and moved between fields. There is a movement mode. The working modes include a standard working mode in which the traveling speed of the traveling device 2 is high (the "first working mode" in the claims), and a standard low-speed working mode in which the traveling speed of the traveling device 2 is medium speed (in the claims). There are a "second work mode") and a lodging work mode ("third work mode" in the claims) in which the traveling speed of the traveling device 2 is reduced.

The traveling speed of the traveling device 2 in each mode is highest in the field movement mode, and decreases in the order of standard work mode, low speed work mode, and lodging work mode.

FIG. 29 shows the display section 92 in the standard work mode. In the standard work mode, the traveling speed of the traveling device 2 and the reaping speed of the reaping device 3 are set high to perform reaping and threshing operations.

In the display section 92, a speed display section 92A and a mowing display section 92D light up in accordance with the traveling speed of the traveling device 2 in the standard work mode and the driving states of the reaping device 3 and the threshing device 4. This allows the worker to visually check the display section 92 and confirm the work mode.

The driving states of the reaping device 3 and the threshing device 4 can be controlled by a reaping switch 91C.

When the reaping switch 91C is held down for 3 to 5 seconds, the reaping clutch 18 and the threshing clutch 19 are connected, the reaping device 3 and the threshing device 4 are driven, and the reaping and threshing display section 92D lights up. Further, when the reaping switch 91C is pressed, the reaping clutch 18 and the threshing clutch 19 are disconnected, the driving of the reaping device 3 and the threshing device 4 is stopped, and the reaping and threshing display section 92D flashes. Note that before the reaping clutch 18 and the threshing clutch 19 are connected and the reaping device 3 and the threshing device 4 are driven, a warning message such as "Start driving the reaping device and threshing device" is displayed on the monitor 15.

When the reaping switch 91C is pressed for a long time, a message such as "Start driving the reaping device and threshing device" is displayed on the monitor 15. This makes it possible to alert the worker. Further, when the reaping switch 91C is pressed, the controller 52D increases the output rotation speed of the engine E. Thereby, the combine harvester can be quickly moved to the vicinity of the grain transport truck.

FIG. 30 shows the display section 92 in the standard low-speed work mode. By pressing the mode switch 91B, the work mode can be changed from the standard work mode to the standard low speed work mode. Further, by pressing the mode switch 91A, the work mode can be returned from the standard low-speed work mode to the standard work mode.

When the mode switch 91A is pressed during the standard low-speed work mode, the controller 52D drives the operating means (not shown) for the gear transmission mechanism 17A to change the meshing gear of the gear transmission mechanism 17A of the transmission 17, and the traveling device 2 The traveling speed of the vehicle and the reaping speed of the reaping device 3 are increased to make them faster.

When the mode switch 91B is pressed in the standard work mode, the controller 52D drives the operating means for the gear transmission mechanism 17A to change the meshing gear of the gear transmission mechanism 17A of the transmission 17 to adjust the traveling speed of the traveling device 2 and the reaping speed. The reaping speed of the device 3 is reduced to medium speed.

The controller 52D drives an operating means (not shown) for the hydraulic continuously variable transmission 16, changes the opening degree of the swash plate of the hydraulic motor of the hydraulic continuously variable transmission 16, and adjusts the traveling speed of the traveling device 2 and the cutting speed. It is also possible to increase or decrease the reaping speed of the device 3. The speed change lever 14 changes the opening degree of the swash plate of the hydraulic motor of the hydraulic continuously variable transmission 16 to increase or decrease the traveling speed of the traveling device 2 and the reaping speed of the reaping device 3.

In the standard low-speed operation mode, the traveling speed of the traveling device 2 and the reaping speed of the reaping device 3 are set to medium speeds to perform reaping and threshing operations.

In the display section 92, a speed display section 92B and a mowing display section 92D light up in accordance with the traveling speed of the traveling device 2 in the standard low-speed work mode and the driving states of the reaping device 3 and the threshing device 4. This allows the worker to visually check the display section 92 and confirm the work mode.

FIG. 31 shows the display section 92 in the lodging work mode. By pressing the mode switch 91B, the work mode can be changed from the standard low-speed work mode to the lodging work mode. Further, by pressing the mode switch 91A, the work mode can be returned from the lodging work mode to the standard low speed work mode.

When the mode switch 91A is pressed during the lodging work mode, the controller 52D drives the operating means (not shown) for the gear transmission mechanism 17A to change the meshing gear of the gear transmission mechanism 17A of the transmission 17 to change the gear of the traveling device 2. The traveling speed and the reaping speed of the reaping device 3 are increased to medium speed.

When the mode switch 91B is pressed in the standard low-speed work mode, the controller 52D drives the operating means for the gear transmission mechanism 17A to change the meshing gear of the gear transmission mechanism 17A of the transmission 17 to change the traveling speed of the traveling device 2. Slow down to low speed. Further, the controller 52D drives an operating means (not shown) for the gear transmission mechanism 17B to drive the gear transmission mechanism 17B to increase the reaping speed of the reaping device 3 to medium or high speed. Thereby, it is possible to efficiently raise and reap the fallen grain culms using the raising device of the reaping device 3.

In the lodging operation mode, the traveling device 2 travels at a low speed, and the reaping speed of the reaping device 3 is increased to perform reaping and threshing operations.

In the display section 92, a speed display section 92C and a mowing display section 92D light up in accordance with the traveling speed of the traveling device 2 in the lodging work mode and the driving states of the reaping device 3 and the threshing device 4. This allows the worker to visually check the display section 92 and confirm the work mode.

FIG. 32 shows the display section 92 in the field movement mode. By pressing and holding the mode switch 91A for 3 to 5 seconds in the work mode, the mode can be changed from the work mode to the field movement mode. Further, by pressing and holding the mode switch 91B for 3 to 5 seconds, the mode can be returned from the field movement mode to the work mode.

When the mode switch 91A is held down for 3 to 5 seconds in the work mode, the controller 52D drives the operating means for the gear transmission mechanism 17A to change the meshing gear of the gear transmission mechanism 17A of the transmission 17, and the traveling device 2 The running speed of the reaping device 3 is increased to the maximum speed, and the reaping clutch 18 and the threshing clutch 19 are disconnected to stop the driving of the reaping device 3 and the threshing device 4.

When the reaping switch 91C is pressed for a long time, a message such as "change to field movement mode" is displayed on the monitor 15. This makes it possible to alert the worker. Further, when the reaping switch 91C is pressed for a long time, the controller 52D increases the output rotation speed of the engine E. Thereby, it is possible to quickly move between fields.

When the mode switch 91B is held down for 3 to 5 seconds in the field movement mode, the controller 52D connects the reaping clutch 18 and the threshing clutch 19 to drive the reaping device 3 and the threshing device 4, and also connects the reaping clutch 18 and the threshing clutch 19 to drive the reaping device 3 and the threshing device 4. By driving the operating means for changing the meshing gear of the gear transmission mechanism 17A of the transmission 17, the traveling speed of the traveling device 2 and the reaping speed of the reaping device 3 are reduced to the speed of the work mode before the change, that is, If the work mode before the change is standard work mode, the speed is set to high speed, if it is standard low speed work mode, it is set to medium speed, if it is lodging work mode, the traveling speed of traveling device 2 is set to low speed, and the reaping speed of reaping device 3 is changed to low speed. Set the speed to high. Thereby, it is possible to return to the work mode before the mode change, and it is possible to efficiently restart the work mode while reducing the discomfort of the worker. Further, when the reaping switch 91C is pressed for a long time, a message such as "Change to work mode, start driving the reaping device and threshing device" is displayed on the monitor 15. This makes it possible to alert the worker.

In the field movement mode, the traveling speed of the traveling device 2 becomes the maximum speed, and the driving of the reaping device 3 and the threshing device 4 is stopped.

In the display section 92, the speed display section 92A lights up brighter in accordance with the traveling speed of the traveling device 2 in the field movement mode, and the mowing display section 92D lights up more brightly in accordance with the driving state of the reaping device 3 and the threshing device 4. Flashing. Thereby, the operator can visually check the display section 92 and confirm the field movement mode.

1 Airframe frame 2 Traveling device 3 Reaping device 4 Threshing device 5 Control section 10 Control seat 10A Control seat support member (first pilot seat support member)
11 Front panel 16 Hydraulic continuously variable transmission 20 Side panel 21 Side panel section (first panel section)
21A Drooping part 22 Control panel part (second panel part)
24 Gear shift lever 31 Support shaft (first support shaft)
63 Left wall 80 Cockpit support member (second cockpit support member)
82 Support shaft (second support shaft)
90 Mode select panel 91A Mode switch (first switch)
91B Mode switch (second switch)
91C Reaping switch (3rd switch)
E engine

Claims (4)

A traveling device (2) is provided on the lower side of the machine frame (1) on which the engine (E) is mounted, and a reaping device (3) for reaping grain culms in the field is provided on the front side of the machine frame (1). A threshing device (4) for threshing grain culms is provided on the rear left side of the device (3), a control section (5) on which a worker rides is provided on the rear right side of the reaping device (3), and In a combine harvester provided with a speed change mechanism that changes the speed of the output rotation and outputs it to the traveling device (2),
A front panel (11) is provided on the front side of the pilot seat (10) of the control section (5), and a side panel (20) is provided on the left side of the pilot seat (10),
The side panel (20) is provided with a speed change lever (24) for operating a speed change mechanism that changes the output rotation of the engine (E) and a mode change operation section (90),
The mode change operation section (90) includes an operation section (91) that can change the gear ratio of the transmission mechanism, and a display section (92) arranged at a position closer to the operator than the operation section (91). Equipped with
combine. The mode change operation section (90) includes a first switch (91A) for increasing the traveling speed of the traveling device (2) and a second switch (91B) for decelerating the traveling speed of the traveling device (2). established,
When the first switch (91A) is operated for a predetermined time, the traveling device (2) changes from the work mode in which the traveling device (2), the reaping device (3), and the threshing device (4) are driven. the mode is changed to a field moving mode in which the reaping device (3) and the threshing device (4) are stopped;
The combine harvester according to claim 1, wherein the mode is changed from the field driving mode to the work mode when the second switch (91B) is operated for a predetermined time. The working modes include a first working mode in which the traveling speed of the traveling device (2) is high, a second working mode in which the traveling speed of the traveling device (2) is medium speed, and a traveling mode in which the traveling device (2) runs at a medium speed. Forming in a third working mode with a low speed,
When the second switch (91B) is operated and the mode is changed from the second work mode to the third work mode, the reaping speed of the reaping device (3) is switched from low speed to medium speed or high speed. The combine harvester according to claim 2. A third switch (91C) is provided between the first switch (91A) and the second switch (91B),
When the third switch (91C) is operated, the driving of the reaping device (3) and the threshing device (4) is stopped;
The combine harvester according to claim 3, wherein when the third switch (91C) is operated for a predetermined time, the reaping device (3) and the threshing device (4) are driven.