JP2022101177A - Sugar cane harvesting machine - Google Patents

Abstract

To provide a sugar cane harvesting machine where operability of changing a direction of a conveyor is improved.SOLUTION: A sugar cane harvesting machine comprises: a reaping conveying device for reaping crops in a farm field; a separation device for separating impurities from the crops; a conveyor for conveying the crops from which the impurities are separated; and an operation part provided above the reaping conveying device. The conveyor is supported so as to be longitudinally swingable around a vertical axis core passing through a front part of the conveyor along a vertical direction. The operation part 7 comprises a turning pedal 50 that is configured to be longitudinally swingably operable and is capable of performing longitudinal swing operation of the conveyor by receiving artificial stepping operation.SELECTED DRAWING: Figure 3

Description

The present invention relates to a sugar cane harvester that harvests sugar cane in a field.

As the sugarcane harvester, as disclosed in Patent Document 1, there is a machine in which a cutting and transporting device, a separating device and a conveyor are provided, and an operation unit is provided above the cutting and transporting device.
As the aircraft progresses, the crops in the field are cut and transported by the cutting and transporting device, and the debris is separated from the crops by the separating device. Crops are supplied from the conveyor to the transport vehicle that accompanies the farm.

Japanese Unexamined Patent Publication No. 2008-5715

In a sugar cane harvester, the carrier may travel to the right of the sugar cane harvester or to the left of the sugar cane harvester, depending on the direction of travel in the field when harvesting the crop.
As a result, it is necessary to set the conveyor to the right or to the left each time the position of the carrier with respect to the sugar cane harvester changes.

An object of the present invention is to improve the operability of changing the direction of a conveyor in a sugar cane harvester.

The sugar cane harvester of the present invention is connected to a cutting and transporting device that cuts crops in a field and transports them toward the rear of the machine, and is connected to the rear part of the cutting and transporting device to separate waste from the crops that are transported by the cutting and transporting device. A separating device, a conveyor that extends upward from the lower part of the separating device, and a conveyor that conveys the crops from which the waste is separated by the separating device, and a driver's seat and an artificial one provided above the harvesting and transporting device. A driving unit provided with a manual operation tool to be operated is provided, and the conveyor is supported so as to be swingable to the left and right around a vertical axis core passing along the front portion of the conveyor in the vertical direction. The operation unit is provided with a swivel pedal that is configured to be able to swing left and right and that can swing the conveyor left and right by being artificially stepped on.

According to the present invention, a worker sitting in the driver's seat can step on the swivel pedal with his / her right foot or left foot even when he / she is operating a manual operation tool (for example, a steering wheel, a shift lever, etc.) with his / her right or left hand. This allows the conveyor to be swung left and right to change the orientation of the conveyor.

According to the present invention, when an operator seated in the driver's seat steps on the swivel pedal to the left or right, the direction of the conveyor is changed to the right, and when the swivel pedal is stepped on the left or right, the direction of the conveyor is changed to the left. Will be done. In this way, the direction of the conveyor can be changed by a simple operation of stepping on the swivel pedal to the left or right, so that the operability of changing the direction of the conveyor is improved.
According to the present invention, the direction of the conveyor can be changed by one swivel pedal, which is advantageous in terms of simplification of the structure.

In the present invention, when the swivel pedal is stepped to the right, the conveyor is swung counterclockwise in plan view, and when the swivel pedal is stepped to the left, the conveyor is clocked in plan view. It is preferable to swing in the direction.

According to the present invention, the conveyor is arranged on the rear side with respect to the driving unit (driver's seat), and extends upward from the lower part of the separating device.
In the above-mentioned state, when the operator seated in the driver's seat depresses the swivel pedal to the right, the conveyor is swung counterclockwise in a plan view and is extended to the right from the aircraft. .. When the operator seated in the driver's seat depresses the swivel pedal to the left, the conveyor is swung clockwise in a plan view and is extended to the left from the aircraft.
As a result, the intention of the operator and the swinging operation of the conveyor are in agreement, and the operability of changing the direction of the conveyor is improved.

In the present invention, the swivel pedal is arranged so as to be offset to the left or right with respect to the left and right center of the driver's seat in a plan view, and extends diagonally forward to the right or left from the driver's seat. It is preferable that the structure is such that it can swing around the horizontal axis along the virtual line.

When the worker sitting in the driver's seat takes a natural posture, the right foot (left foot) may extend diagonally laterally (radially) around the worker's body in a plan view.

According to the present invention, the swivel pedal is arranged so as to be displaced to the left or right with respect to the left and right center of the driver's seat in a plan view, and is a virtual line extending diagonally forward to the right or left from the driver's seat. It is configured to swing around the horizontal axis along the axis.
As a result, when the worker sitting in the driver's seat takes a natural posture, the horizontal axis of the swivel pedal follows the extending direction of the worker's right foot (left foot), so that the work of sitting in the driver's seat The swivel pedal becomes easier for the person to step on, and the operability of changing the direction of the conveyor is improved.

In the present invention, the driving unit is provided with a locking tool that can switch between a regulated state and a non-regulated state, and the locking tool is in contact with the tread portion of the swivel pedal from above in the regulated state. By holding the swivel pedal in a neutral position where the swing operation of the conveyor is stopped, the stepping operation of the swivel pedal is restricted, and in the non-regulated state, the swivel pedal is separated from the tread portion. It is preferable to allow the stepping operation of.

According to the present invention, when it is not necessary to depress the swivel pedal, the lock tool may be set to the regulated state. In the restricted state, the lock tool holds the swivel pedal in the neutral position and restricts the stepping operation along the left-right direction of the swivel pedal. However, the swivel pedal is held in the neutral position and the conveyor does not turn.

In the regulated state, the lock tool is held in the neutral position by contacting the tread of the turn pedal from above, so that the lock tool can be used as a footrest for the operator sitting in the driver's seat. Can be done.

It is a left side view of a sugar cane harvester. It is a plan view of a sugar cane harvester. It is a cross-sectional plan view of a driving part. It is a rear view near the side panel. It is a front view near the side panel. It is a top view near the side panel. It is a top view near the side panel and the driver's seat. It is a vertical sectional left side view in the vicinity of a swivel pedal and a lock tool in a regulated state. It is a rear view of the vicinity of a swivel pedal and a lock tool in a regulated state. It is a top view in the vicinity of a swivel pedal and a lock tool in a regulated state. It is a rear view of the vicinity of a swivel pedal and a lock device in an unregulated state. It is a rear view of the vicinity of a swivel pedal operated to the right and a lock tool in an unregulated state. It is a rear view near the swivel pedal operated by stepping on the left and the lock tool in the unregulated state. It is a schematic diagram which shows the relationship between a control device, a cutting part, a transfer device, a separation device, and a conveyor. It is a schematic diagram which shows the relationship between a control device and a driving part, an engine, a hydrostatic continuously variable transmission, an auxiliary transmission, and a front wheel.

FIGS. 1 to 15 show sugarcane harvesters, in FIGS. 1 to 15, where F indicates the forward direction, B indicates the backward direction, U indicates the upward direction, and D indicates the downward direction. R indicates the right direction, and L indicates the left direction.

(Overall composition of sugar cane harvester)
As shown in FIGS. 1 and 2, the left and right front wheels 1 and the left and right rear wheels 2 support the entire sugarcane harvester. From the lower part of the cutting unit 3 which is a cutting and transporting device, the transporting device 4 which is a cutting and transporting device provided in a backward tilting posture from the cutting section 3, the separating device 5 connected to the rear part of the transporting device 4, and the separating device 5. The machine body is provided with a conveyor 6, a cutting unit 3, an operating unit 7 provided above the transport device 4, and an engine 8 extending upward in an inclined posture.

With the above configuration, as the machine progresses, the roots of the crops in the field are cut by the cutting section 3 and the crops are cut, and the crops cut by the cutting section 3 are conveyed backward by the transport device 4. To.

When the crop reaches the transport end of the transport device 4, the crop is shredded at the transport end of the transport device 4 and supplied to the separation device 5, and the shredded crop is downward inside the separation device 5. While passing through, it falls on the hopper 6b at the front of the conveyor 6. Sorting wind is supplied to the crop inside the separating device 5, and the waste is separated and blown off and discharged.

The crops that have fallen into the hopper 6b of the conveyor 6 are conveyed upward and rearward by the conveyor 6, and are transported from the discharge portion 6a at the upper part of the rear part of the conveyor 6 to the loading platform of a truck or other transport vehicle (not shown). It is released and recovered.

(Composition of the cutting section)
As shown in FIGS. 1, 2, and 14, the cutting unit 3 has left and right screws 9, a tilting device 10, a cutting device 11, an upper cutting device 87, and the like.

The right inner and outer screws 9 and the left inner and outer screws 9 are provided, and the screw 9 is configured in a shape in which a spiral body is attached to the outer peripheral portion of an elongated cylindrical main body. There is.

The hydraulic motor 12 is provided on the upper part of the screw 9, and the hydraulic motor 12 is provided with an electromagnetically operated type control valve 62 for supplying / discharging hydraulic oil. The hydraulic motor 12 causes the screw 9 to have a shaft core along the vertical direction. It is driven to rotate around.
The left and right hydraulic cylinders 13 whose heights of the left and right screws 9 can be changed are provided, and the hydraulic cylinder 13 is provided with an electromagnetically operated type control valve 63 for supplying and discharging hydraulic oil.

The two sets of tilting devices 10 are provided behind the screw 9 and have a plurality of tilting plates (not shown) having an uneven end formed on the outer peripheral portion of a cylindrical main body portion (not shown). ) Are attached in a radial pattern. The tilting device 10 is rotationally driven around the axis along the left-right direction by the hydraulic motor 14, and the hydraulic motor 14 is provided with an electromagnetically operated control valve 64 for supplying and discharging hydraulic oil.

The left and right cutting devices 11 are provided behind the tilting device 10 and have rotary blades rotatably supported around the axis along the vertical direction. The rotary blade is rotationally driven by the hydraulic motor 15, and the hydraulic motor 15 is provided with an electromagnetically operated type control valve 65 for supplying and discharging hydraulic oil.

The upper cutting device 87 is supported above the screw 9 and has a rotary blade rotatably supported around an axis along the vertical direction. The rotary blade is rotationally driven by the hydraulic motor 16, and the hydraulic motor 16 is provided with an electromagnetically operated type control valve 66 for supplying and discharging hydraulic oil. A hydraulic cylinder 101 whose height can be changed is provided in the upper cutting device 87, and an electromagnetically operated type control valve 102 for supplying and discharging hydraulic oil is provided in the hydraulic cylinder 101.

With the above configuration, as the aircraft progresses, the left and right screws 9 separate the crops to be cut and the crops to be left in the field, while the upper leaves of the crops to be cut are cut by the upper cutting device 87 to produce the crops to be cut. It is introduced between the left and right screws 9. The crop introduced between the left and right screws 9 is tilted forward by the tilting device 10, and the stock root is cut by the cutting device 11 and supplied from the stock root of the crop to the transport device 4.

(Structure of transport device)
As shown in FIGS. 1, 2, and 14, the transport device 4 is provided with left and right side plates (not shown) in a backward tilted posture along the front-rear direction, and is provided with an upper rotating body (not shown). And the lower rotating body (not shown) is supported by the side plates at intervals along the transport direction of the crop.

Since the upper and lower rotating bodies are rotationally driven in opposite directions around the axis along the left-right direction, the crop is sandwiched between the upper and lower rotating bodies and is placed on the upper part of the crop. On the other hand, the root of the crop is transported backward so as to precede it.

Shredding blades (not shown) are provided on the upper and lower rotating bodies located at the transport end of the transport device 4, and when the crop reaches the transport end of the transport device 4, the crop is shredded. It is cut to a predetermined length by a blade and supplied to the separating device 5. A hydraulic motor 17 for rotationally driving the upper and lower rotating bodies is provided, and the hydraulic motor 17 is provided with an electromagnetically operated type control valve 67 for supplying and discharging hydraulic oil.

(Configuration of separator)
As shown in FIGS. It has a fan-shaped blower 19 rotatably supported inside the main body 18. The blower 19 is rotationally driven by the hydraulic motor 20, and the hydraulic motor 20 is provided with an electromagnetically operated type control valve 70 for supplying and discharging hydraulic oil.

When the shredded crop is supplied from the transport device 4 to the main body portion 18, the crop falls into the hopper 6b of the conveyor 6 while passing downward inside the main body portion 18. A sorting wind is generated from the lower part to the upper part of the main body portion 18 by the blower 19, and the waste is separated from the crop by the sorting wind and blown upward, and is discharged from the discharge port 18a on the upper part of the main body portion 18.

(Conveyor configuration)
As shown in FIGS. 1, 2, and 14, in the conveyor 6, the left and right frames (not shown) are arranged in a backward tilted posture, and the conveyor belt (not shown) is rotatably supported between the left and right frames. Has been done. A hydraulic motor 21 for rotationally driving the conveyor belt is provided, and an electromagnetically operated type control valve 71 for supplying / discharging hydraulic oil to the hydraulic motor 21 is provided.

A hopper 6b is provided at the front of the conveyor 6, and the crops from the separating device 5 can be received and stored by the hopper 6b. A discharge portion 6a is provided at the rear end portion of the conveyor 6, a guide member 23 is provided at the discharge portion 6a of the conveyor 6, and the direction of the guide member 23 is changed up and down by the electric motor 24. By changing the direction of the guide member 23 up and down, the direction of the crops discharged from the discharge unit 6a of the conveyor 6 can be changed up and down.

The conveyor 6 is swingably supported around the vertical axis core P1 passing through the front portion of the conveyor 6 in the vertical direction, and is swingably supported vertically with the front portion of the conveyor 6 as a fulcrum. A hydraulic cylinder 22 capable of swinging the conveyor 6 left and right and a hydraulic cylinder 33 capable of swinging the conveyor 6 up and down are provided, and an electromagnetic operation for supplying and discharging hydraulic oil to the hydraulic cylinders 22 and 33 is provided. Type control valves 72 and 73 are provided.

By swinging the conveyor 6 left and right, the direction of the conveyor 6 and the position of the discharge portion 6a of the conveyor 6 can be changed to the left and right. By swinging the conveyor 6 up and down, the conveyor 6 can be changed. The position of the discharge unit 6a can be changed up and down.

(Composition of transmission system to rear wheels)
As shown in FIG. 15, a hydrostatic continuously variable transmission 26, which is a transmission for traveling, is provided across the engine 8 and the auxiliary transmission 25. The hydrostatic stepless transmission 26 includes a hydraulic pump 26a connected to the engine 8, a hydraulic motor 26b connected to the auxiliary transmission 25, and a hydraulic hose 26c connected over the hydraulic pump 26a and the hydraulic motor 26b. And have. The hydrostatic continuously variable transmission 26 is configured to be capable of steplessly shifting from the neutral position to the forward side and the reverse side by changing the angle of the swash plate of the hydraulic pump 26a.

The auxiliary transmission 25 is configured as a gear shifting type and can shift to two speeds of high speed and low speed. A hydraulic cylinder 27 for operating the auxiliary transmission 25 is provided, and an electromagnetically operated type control valve 77 for supplying and discharging hydraulic oil is provided in the hydraulic cylinder 27.

With the above configuration, the hydraulic pump 26a of the hydrostatic stepless transmission 26 is driven by the engine 8, the hydraulic oil of the hydraulic pump 26a is supplied to the hydraulic motor 26b via the hydraulic hose 26c, and the hydraulic motor 26b is driven. Will be done. The power of the hydraulic motor 26b of the hydrostatic continuously variable transmission 26 is transmitted to the auxiliary transmission 25 and transmitted to the left and right rear wheels 2. Left and right brakes 28 capable of braking the left and right rear wheels 2 are provided.

(Structure of front wheel support)
As shown in FIG. 15, the left and right hydraulic cylinders 29 are arranged on the right and left portions of the front part of the machine body along the vertical direction, and the piston 29b of the hydraulic cylinder 29 is connected to the machine body. The main body 29a of the hydraulic cylinder 29 is rotatably supported around the axis of the hydraulic cylinder 29 by a support arm 31 rotatably supported by the machine body so as to swing up and down.

A hydraulic cylinder 30 for rotating the main body 29a of the hydraulic cylinder 29 is provided for the piston 29b of the hydraulic cylinder 29, and the front wheel 1 is rotatably supported by the main body 29a of the hydraulic cylinder 29. The hydraulic cylinder 29 is provided with an electromagnetically operated type control valve 79 for supplying and discharging hydraulic oil, and the hydraulic cylinder 30 is provided with a mechanically operated type control valve 80 for supplying and discharging hydraulic oil.

By raising and lowering the front wheel 1 with respect to the machine body by the hydraulic cylinder 29, the front part of the machine body can be moved up and down with the rear wheel 2 in contact with the field as a fulcrum. By rotating the main body 29a of the hydraulic cylinder 29 with the hydraulic cylinder 30, the steering operation of the front wheel 1 can be performed.

(Structure of driving unit)
As shown in FIGS. 1, 2, and 3, the driving unit 7 is covered with the cabin 41. The driver unit 7 includes a driver's seat 42, a handle post 43 provided on the front side of the driver's seat 42, a steering handle 44 which is a manual operation tool supported on the upper part of the handle post 43 and artificially operated, and a driver's seat 42. The liquid crystal monitor supported by the right pillar 32 among the left and right pillars 32 of the operation box 45 arranged on the right side in the left-right direction, the side panel 54 provided on the upper part of the operation box 45, and the cabin 41. 34 etc. are provided.

On the floor 46 of the driver unit 7, the swivel pedal 50 and the lock tool 61 (see (the configuration of the swivel pedal) and (the configuration of the lock tool) described later) are viewed in a plan view with respect to the left and right center CL of the driver's seat 42. It is displaced to the left, which is one of the left and right sides, and is arranged on the left side with respect to the handle post 43.

On the floor 46 of the driver unit 7, the accelerator pedal 47, the brake pedal 48, and the lock lever 49 are arranged so as to be offset to the right, which is the other left and right, with respect to the left and right center CL of the driver's seat 42 in a plan view. , Is located on the right side of the handle post 43. The accelerator pedal 47 is configured to be operated back and forth along the tenth virtual inclined line L10, which is a virtual line extending diagonally forward to the right from the driver's seat 42 in a plan view.

As shown in FIG. 15, the accelerator pedal 47 is urged to the return side by a spring (not shown), and the operating position of the accelerator pedal 47 is input to the control device 100 provided on the machine body. An electronically controlled type accelerator unit 88 that controls the fuel injection amount of the engine 8 is provided, and the accelerator unit 88 is operated by the control device 100 based on the operation position of the accelerator pedal 47.

The steering handle 44 and the control valve 80 are mechanically connected. The front wheel 1 is steered by the hydraulic cylinder 30 by the operator seated in the driver's seat 42 operating the steering handle 44 to operate the control valve 80.

The brake pedal 48 and the brake 28 are mechanically connected via a linking mechanism 60. An operator seated in the driver's seat 42 can operate the brake 28 in the braking state by depressing the brake pedal 48.

As shown in FIG. 3, the operator seated in the driver's seat 42 holds the brake pedal 48 in the depressed operation state by hooking the lock lever 49 on the brake pedal 48 while the brake pedal 48 is depressed. be able to. As a result, the brake 28 is held in the braking state, so that the brake 28 can be used for parking.

(Structure of side panel)
As shown in FIGS. 3 to 6, on the side panel 54, the inner operation surface 55 on the side closer to the driver's seat 42 and the opposite side of the driver's seat 42 (the side far from the driver's seat 42) with respect to the inner operation surface 55. ) Is provided with an operation surface 56 on the outside.

The inner and outer operation surfaces 55 and 56 are formed in a vertically elongated shape along the front-rear direction, and the inner operation surface 55 is formed on a surface substantially parallel (substantially horizontal) to the floor 46.
The outer operation surface 56 is arranged at a position higher than the inner operation surface 55, and the portion of the outer operation surface 56 farther from the driver's seat 42 than the portion closer to the driver's seat 42 on the outer operation surface 56. It is formed on an inclined surface facing the driver's seat 42 so as to be high.

As shown in FIG. 6, on the outer operation surface 56 of the side panel 54, on the rear side with respect to the first region 56a and the first region 56a, which are front regions formed on the front portion of the outer operation surface 56. The formed second region 56b, the third region 56c formed on the rear side of the second region 56b, and the fourth region 56d formed on the rear side of the third region 56c and closer to the armrest 68. A fifth region 56e formed on the rear side of the third region 56c and far from the armrest 68 is provided.

As shown in FIGS. 3 to 6, the support frame 69 extends upward from the portion of the operation box 45 near the driver's seat 42, and the armrest 68 is supported on the upper part of the support frame 69.

The armrest 68 is arranged behind the speed change lever 51 (see (described later (see (configuration of the speed change lever capable of operating the hydrostatic continuously variable transmission))) and above the operation surface 55 inside the side panel 54. It is arranged along the front-back direction. The armrest 68 is arranged at a position lower than the upper end portion of the grip portion 51a of the speed change lever 51, and is arranged at a position higher than the operation surfaces 55 and 56 on the inner and outer sides of the side panel 54.

As shown in FIGS. 3 and 6, the rear side panel 57 is provided on the rear side with respect to the side panel 54. The rear side panel 57 is formed on an inclined surface so that the rear side panel 57 has a higher rear portion and a higher rear portion than the front portion of the rear side panel 57. The rear side panel 57 is provided with a cup holder 58 and an accessory case 59.

(Structure of shift lever that can operate hydrostatic continuously variable transmission)
As shown in FIGS. 4, 5 and 6, the speed change lever 51, which is a manual operation tool that can operate the hydrostatic continuously variable transmission 26 and is artificially operated, is in front of the operation surface 55 inside the side panel 54. It is provided in the section. As a result, the shift lever 51 of the driver's seat 42 with respect to the first region 56a (front region) of the operation surface 56 outside the side panel 54 on the operation surfaces 55 and 56 on the inside and outside of the side panel 54. It is in a state of being prepared in the area adjacent to the side.

As shown in FIG. 15, the shift lever 51 and the hydraulic pump 26a of the hydrostatic continuously variable transmission 26 are mechanically connected via a linking mechanism 78. As shown in FIG. 6, on the operation surface 55 inside the side panel 54, a neutral path 38 along the left-right direction, a forward path 39 extending forward from the left portion of the neutral path 38, and a right portion of the neutral path 38. A reverse path 40 extending from the rear to the rear is provided.

The operator seated in the driver's seat 42 holds the grip portion 51a of the shift lever 51 with his right hand and artificially operates the shift lever 51 into the neutral path 38, the forward path 39, and the reverse path 40. In this case, the grip portion 51a of the shift lever 51 is arranged at a position slightly higher than the operation surface 56 and the armrest 68 on the outside of the side panel 54.

When the speed change lever 51 is operated to the neutral path 38, the hydraulic pump 26a of the hydrostatic continuously variable transmission 26 is operated to the neutral position, and the machine body stops. When the speed change lever 51 is operated to the forward path 39, the hydraulic pump 26a of the hydrostatic continuously variable transmission 26 is operated to the forward high speed side, and when the speed change lever 51 is operated to the reverse path 40, the hydraulic pump 26a is operated. The hydraulic pump 26a of the hydrostatic continuously variable transmission 26 is operated to the reverse high speed side.

(Structure relating to the first area on the operation surface outside the side panel)
As shown in FIG. 6, the main operating tool 35, the cutting and transporting device operating tool 36, and the conveyor operating tool 37 are provided in the first region 56a of the operating surface 56 on the outside of the side panel 54.

The main operating tool 35 is configured in a dial switch type and is operated to an operating position and a stopping position by artificially rotating the main operating tool 35, and the operating position of the main operating tool 35 is set to the control device 100 shown in FIG. It has been entered. When the main operating tool 35 is operated to the operating position, the operations described in this section (configuration relating to the first region on the outer operating surface of the side panel) to described later (operating state of the swivel pedal) are permitted.

When the main operating tool 35 is operated to the stop position, the hydraulic cylinders 13, 22, 33, 101, the hydraulic motors 12, 14, 15, 16, 17, 20, 21, and the electric motor 24 shown in FIG. 14 are forcibly operated. Since the stop operation is performed, the operations described in this section (configuration relating to the first region on the operation surface outside the side panel) to later (operation state of the swivel pedal) are prohibited.

The cutting and transporting device operating tool 36 is configured as a seesaw switch type that can be artificially pushed and operated at the front and rear portions, and can be operated at a stop position, a forward rotation position, and a reverse rotation position. The operating position of the cutting and transporting device operating tool 36 is input to the control device 100 shown in FIG. 15, and the cutting and transporting device operating tool 36 operates the control valves 62, 64, 65, 67 shown in FIG. 14 to operate the hydraulic pressure. Motors 12, 14, 15 and 17 operate.

When the cutting and transporting device operating tool 36 is operated to the normal rotation position, the hydraulic motors 12, 14, 15, and 17 operate in the normal rotation, and when the cutting and transporting device operating tool 36 is operated to the reverse rotation position, the hydraulic motor 12, The 14th, 15th, and 17th operate in the reverse direction, and when the cutting and transporting device operating tool 36 is operated to the stop position, the hydraulic motors 12, 14, 15, and 17 are stopped.

In the normal working state, the cutting and transporting device operating tool 36 is operated to the normal rotation position. When an abnormality such as a crop being clogged in the cutting unit 3 or the transporting device 4 occurs, the cutting and transporting device operating tool 36 is operated to the reverse position to clear the clogging of the cutting section 3 or the transporting device 4.

The conveyor operating tool 37 is configured as a seesaw switch type that can be artificially pushed and operated at the front and rear portions, and can be operated at a stop position, a forward rotation position, and a reverse rotation position. The operating position of the conveyor operating tool 37 is input to the control device 100 shown in FIG. 15, and the conveyor operating tool 37 operates the control valve 71 shown in FIG. 14 to operate the hydraulic motor 21.

When the conveyor operating tool 37 is operated to the normal rotation position, the hydraulic motor 21 rotates in the normal direction, and when the conveyor operating tool 37 is operated to the reverse position, the hydraulic motor 21 operates in the reverse direction. Is operated to the stop position, the hydraulic motor 21 is stopped.

In the normal working state, the conveyor operating tool 37 is operated to the normal rotation position. When an abnormality such as a crop being clogged in the conveyor 6 occurs, the conveyor operating tool 37 is operated to the reverse position to clear the clog in the conveyor 6.

(Arrangement state of main operating tool, cutting and transporting device operating tool, and conveyor operating tool in the first area of the operation surface on the outside of the side panel)
As shown in FIGS. 6 and 7, the dial switch type main operating tool 35 and the seesaw switch type cutting and transporting device operating tool 36 and the conveyor operating tool 37 are configured to have different operating modes.

On the inner and outer operating surfaces 55 and 56 of the side panel 54, the shift lever 51, the main operating tool 35, the cutting and transporting device operating tool 36, and the conveyor operating tool 37 are arranged side by side in this order along the left-right direction. It is arranged in.

In the first region 56a of the operation surface 56 on the outer side of the side panel 54, assuming the first virtual inclined line L1 located on the rear side toward the lateral outside with respect to the driver's seat 42 in a plan view, the main operating tool 35 and cutting The conveyor operating tool 36 and the conveyor operating tool 37 are arranged side by side along the first virtual inclined line L1 in a plan view.

Assuming a second virtual tilt line L2 orthogonal to the first virtual tilt line L1 in a plan view, an operation in which the cutting and transporting device operating tool 36 and the conveyor operating tool 37 are operated along the second virtual tilt line L2. It is configured in a form (seesaw switch model).

When the second virtual inclined line L2 extends rearward from between the cutting and transporting device operating tool 36 and the conveyor operating tool 37 in a plan view, it intersects the armrest 68 and reaches the rear right part of the driver's seat 42. ..

In other words, the second virtual inclined line L2 extends diagonally laterally from the driver's seat 42 toward the first region 56a of the operation surface 56 outside the side panel 54 in a plan view. It has become. The second virtual inclination line L2 is inclined so as to be located on the front side toward the lateral side with respect to the driver's seat 42 in a plan view.

(Structure relating to the second area on the operation surface outside the side panel)
As shown in FIG. 6, the separating device operating tool 74 and the upper cutting device operating tool 75 are provided in the second region 56b of the operating surface 56 on the outside of the side panel 54.

The separating device operating tool 74 is configured in a dial switch type, and is operated to an operating position and a stopping position by being artificially rotated. The operating position of the separating device operating tool 74 is input to the control device 100 shown in FIG. 15, and the control valve 70 shown in FIG. 14 is operated by the separating device operating tool 74 to operate and stop the hydraulic motor 20.

The upper cutting device operating tool 75 is configured as a seesaw switch type that can be operated by artificially pushing the right portion and the left portion, and can be operated at the stop position, the forward rotation position, and the reverse rotation position. The operating position of the upper cutting device operating tool 75 is input to the control device 100 shown in FIG. 15, and the upper cutting device operating tool 75 operates the control valve 66 shown in FIG. 14 to operate the hydraulic motor 16.

When the upper cutting device operating tool 75 is operated in the normal rotation position, the hydraulic motor 16 operates in the normal rotation, and when the upper cutting device operating tool 75 is operated in the reverse position, the hydraulic motor 16 operates in the reverse direction. When the upper cutting device operating tool 75 is operated to the stop position, the hydraulic motor 16 is stopped.

In a normal working state, the upper cutting device operating tool 75 is operated to the normal rotation position. When an abnormality such as a crop being clogged in the upper cutting device 87 occurs, the upper cutting device operating tool 75 is operated to the reverse position to clear the clogging of the upper cutting device 87.

(Arrangement state of the separating device operating tool and the upper cutting device operating tool in the second region of the operation surface on the outer side of the side panel)
As shown in FIGS. 6 and 7, the dial switch type separation device operating tool 74 and the seesaw switch type upper cutting device operating tool 75 are configured to have different operating modes from each other.

In the second region 56b of the operation surface 56 on the outer side of the side panel 54, assuming a third virtual inclined line L3 located on the rear side of the driver's seat 42 in a plan view, the upper cutting device operating tool 75 Is configured in an operation mode (seesaw switch type) operated along the third virtual inclined line L3.

The separating device operating tool 74 and the upper cutting device operating tool 75 are arranged side by side along the third virtual inclined line L3 in a plan view in this order. In this case, the third virtual inclined line L3 is substantially parallel to the first virtual inclined line L1.

The identification line 76 having a color different from that of the operation surface 56 on the outside of the side panel 54 (for example, yellow, red, or orange) is the outer peripheral portion of the first region 56a and the second region 56b of the operation surface 56 on the outside of the side panel 54. It is drawn so as to surround. The main operating tool 35, the cutting and transporting device operating tool 36, the conveyor operating tool 37, the separating device operating tool 74, and the upper cutting device operating tool 75 are arranged inside the identification line 76.

(Structure relating to the third region on the operation surface outside the side panel)
As shown in FIG. 6, the cutting height control operation tool 81, the conveyor elevating operation tool 82, and the automatic storage operation tool 83 are provided in the third region 56c of the operation surface 56 outside the side panel 54. ..

The cutting height control operating tool 81 is configured in a dial switch type, and is operated to an operating position and a stopping position by artificially rotating the cutting height control operating tool 81. The operating position of the cutting height control operating tool 81 is input to the control device 100 shown in FIG. 15, and the cutting height control (see (see (see (see (see (see (see (seeing (cutting height control)) below)) is activated and stopped.

The conveyor elevating operation tool 82 is configured as a seesaw switch type that can be artificially pushed and operated at the front and rear portions, and can be operated at a stop position, an ascending position, and a descending position. The operation position of the conveyor elevating operation tool 82 is input to the control device 100 shown in FIG. 15, the control valve 73 shown in FIG. 14 is operated by the conveyor elevating operation tool 82, and the conveyor 6 is operated by the hydraulic cylinder 33. Is done.

The automatic storage operation tool 83 is configured in a dial switch type, and is operated to an operating position and a stop position by artificially rotating the storage operation tool 83. The operation position of the automatic storage operation tool 83 is input to the control device 100 shown in FIG. 15, and the automatic storage control (see (automatic storage control) described later) is activated and stopped.

(Arrangement state of cutting height control operation tool, conveyor elevating operation tool and automatic storage operation tool in the third area of the operation surface on the outside of the side panel)
As shown in FIGS. 6 and 7, the dial switch type cutting height control operation tool 81 and the automatic storage operation tool 83 and the seesaw switch type conveyor elevating operation tool 82 are configured to have different operation modes. ing.

In the third region 56c of the operation surface 56 on the outer side of the side panel 54, assuming a fourth virtual inclined line L4 located on the rear side of the driver's seat 42 in a plan view, the cutting height control operation tool. The 81 and the conveyor elevating operation tool 82 are arranged side by side along the fourth virtual inclined line L4 in a plan view. In this case, the fourth virtual inclined line L4 is substantially parallel to the first virtual inclined line L1 and the third virtual inclined line L3.

Assuming a fifth virtual tilt line L5 orthogonal to the fourth virtual tilt line L4 in a plan view, the conveyor elevating operation tool 82 is operated along the fifth virtual tilt line L5 (seesaw switch type). It is configured. When the fifth virtual inclined line L5 extends rearward from the conveyor elevating operation tool 82 in a plan view, it intersects the armrest 68 and reaches the vicinity of the rear right portion of the driver's seat 42.

In other words, the fifth virtual inclined line L5 extends diagonally laterally from the driver's seat 42 toward the third region 56c of the operation surface 56 outside the side panel 54 in a plan view. It has become. The fifth virtual inclination line L5 is inclined so as to be located on the front side toward the lateral side with respect to the driver's seat 42 in a plan view.

The automatic storage operation tool 83 is arranged behind the cutting height control operation tool 81, and is arranged slightly behind the conveyor elevating operation tool 82. The main operating tool 35, the separating device operating tool 74, the cutting height control operating tool 81, and the automatic storage operating tool 83 are arranged from the front side in this order along the first virtual front-rear line LL1 along the front-rear direction. They are arranged in a straight line.

(Mowing height control)
In the cutting height control, the operations as described below are performed.
As shown in the above (configuration of the support of the front wheels) and FIG. 15, the front part (cutting) of the machine body is used as a fulcrum by moving the front wheel 1 up and down with respect to the machine body by the hydraulic cylinder 29, so that the rear wheel 2 touching the field is used as a fulcrum. The part 3) can be raised and lowered.

In the cutting section 3, since the cutting device 11 cuts a portion near the field scene at the root of the crop, the load applied to the cutting device 11 changes depending on the state of the crop, the state of the field, the height of the cutting section 3, and the like. ..

A load sensor (not shown) for detecting the load applied to the hydraulic motor 15 of the cutting device 11 is provided, and when the detection value of the load sensor becomes larger than the reference load (when the load applied to the cutting device 11 becomes larger), the hydraulic cylinder The front portion (cutting portion 3) of the machine body is raised by 29 to suppress the load applied to the cutting device 11.
When the detected value of the load sensor returns to the reference load (when the load applied to the cutting device 11 returns to the reference load), the hydraulic cylinder 29 lowers the front portion (cutting portion 3) of the machine body.

(Automatic storage control)
In the automatic storage control, the operations as described below are performed.
As described above (overall configuration of the sugar cane harvester), as the work progresses, the carrier will move away from the sugar cane harvester when the carrier of the accompanying carrier becomes full.

In this case, the operator of the operation unit 7 temporarily suspends the work, supplies all the crops remaining on the conveyor 6 to the transport vehicle, puts the conveyor 6 in a state where there are no crops, and operates the conveyor operating tool 37 at the stop position. Then wait for the next conveyor to accompany the sugar cane harvester.

Until the next carrier is in a state of accompanying the sugar cane harvester, the worker of the operation unit 7 may resume the work with the conveyor 6 stopped. When the work is resumed, the crops are stored in the hopper 6b of the conveyor 6, and the storage state of the crops in the hopper 6b of the conveyor 6 is photographed by a camera (not shown) and displayed on the liquid crystal monitor 34.

When the hopper 6b of the conveyor 6 is full, the operator of the operation unit 7 operates the automatic storage operation tool 83 to the operating position. As a result, the conveyor 6 starts operating, and the crops in the hopper 6b of the conveyor 6 are conveyed by the conveyor 6, and the work can be continued during this period. When the crop reaches just before the discharge unit 6a of the conveyor 6, the conveyor 6 automatically stops, so that the worker of the operation unit 7 temporarily suspends the work.

In this case, the operating time after the automatic storage operation tool 83 is operated to the operating position and the conveyor 6 starts operating is detected by a timer (not shown), and when the timer detection time reaches the set time, It is determined that the crop has reached just before the discharge portion 6a of the conveyor 6.
Instead of the timer, it may be determined that the crop has reached just before the discharge portion 6a of the conveyor 6 by detecting the rotation speed of the drive system of the conveyor 6 such as the hydraulic motor 21.

(Structure relating to the fourth area on the operation surface outside the side panel)
As shown in FIG. 6, the blower rotation speed adjuster 84, which is an adjuster, the reference height adjuster 85, which is an adjuster, and the reference load adjuster 86, which is an adjuster, operate the outside of the side panel 54. It is provided in the fourth region 56d of the surface 56.

The blower rotation speed adjuster 84 is configured in a dial switch type and is artificially rotated. The operation position of the blower rotation speed adjuster 84 is input to the control device 100 shown in FIG. 15, and the control valve 70 shown in FIG. 14 is operated to change the rotation speed of the hydraulic motor 20 (blower 19) to high or low. To.

The reference height adjuster 85 is configured in a dial switch type and is artificially rotated, and the operation position of the reference height adjuster 85 is input to the control device 100 shown in FIG. The reference height adjuster 85 allows the reference height to be set in the cutting height control (see (see (see (see (seeing (cutting height control)) above)), and the reference height can be changed to high or low.

As described in the above (cutting height control), when the detection value of the load sensor returns to the reference load and the hydraulic cylinder 29 lowers the front part (cutting part 3) of the machine body, the machine body The limit value at which the lowering operation of the front portion (cutting portion 3) can be stopped is the above-mentioned reference height.

The reference load adjuster 86 is configured in a dial switch type and is artificially rotated, and the operation position of the reference load adjuster 86 is input to the control device 100 shown in FIG. With the reference height adjuster 85, the reference load in the cutting height control (see the above-mentioned (cutting height control)) can be set, and the reference load can be changed to high or low.

(Arrangement state of blower rotation speed adjuster, reference height adjuster and reference load adjuster in the fourth region of the operation surface on the outside of the side panel)
As shown in FIGS. 6 and 7, the dial switch type blower rotation speed adjuster 84, the reference height adjuster 85, and the reference load adjuster 86 are configured to have the same operation mode.

The blower rotation speed adjuster 84, the reference height adjuster 85, and the reference load adjuster 86 are arranged in a straight line from the front side in this order along the second virtual front-rear line LL2 along the front-rear direction. There is.

The blower rotation speed adjuster 84, the reference height adjuster 85, and the reference load adjuster 86 are located on the outer operation surface 56 of the side panel 54 on the rear side with respect to the first region 56a (front region). Moreover, it is provided in the fourth region 56d on the opposite side (right side) of the driver's seat 42 with respect to the armrest 68.

The second virtual front-rear line LL2 of the blower rotation speed adjuster 84, the reference height adjuster 85, and the reference load adjuster 86 is the main operation tool 35, the separation device operation tool 74, the cutting height control operation tool 81, and the automatic storage operation. It is arranged slightly on the armrest 68 side (driver's seat 42 side) in a plan view with respect to the first virtual front-rear line LL1 of the tool 83.

(Structure relating to the fifth area on the operation surface outside the side panel)
As shown in FIG. 6, an accelerator lever 52, which is another operating tool, and an auxiliary transmission lever 53, which is another operating tool, are provided in the fifth region 56e of the operation surface 56 on the outer side of the side panel 54.

The accelerator lever 52 is configured to be able to be held at an arbitrary position by friction, and as shown in FIG. 15, the operating position of the accelerator lever 52 is input to the control device 100. The accelerator unit 88 is operated by the control device 100 based on the operation position operated on the high speed side of the accelerator pedal 47 and the accelerator lever 52.

When traveling at a constant speed as in normal work, a worker seated in the driver's seat 42 operates the accelerator unit 88 by holding the accelerator lever 52 with his right hand and artificially operating the accelerator lever 52. do it. When the accelerator unit 88 is temporarily operated to the high speed side in this state, the operator seated in the driver's seat 42 may depress the accelerator pedal 47.

As shown in FIG. 15, the operating position of the auxiliary shift lever 53 is input to the control device 100. The control valve 77 is operated by the control device 100 based on the operation position of the auxiliary transmission lever 53, and the auxiliary transmission device 25 is operated to the low speed position and the high speed position by the hydraulic cylinder 27.

(Arrangement state of the accelerator lever and the auxiliary transmission lever in the fifth region of the operation surface on the outer side of the side panel)
As shown in FIGS. 6 and 7, in the fifth region 56e of the operation surface 56 on the outer side of the side panel 54, the accelerator lever 52 and the sub are so that the accelerator lever 52 is on the front side and the sub transmission lever 53 is on the rear side. The shift lever 53 and the shift lever 53 are arranged in a straight line along the front-rear direction.

As shown in FIGS. 4 and 5, the accelerator lever 52 and the auxiliary speed change lever 53 are the main operating tool 35, the cutting and transporting device operating tool 36, the conveyor operating tool 37, the separating device operating tool 74, and the upper cutting device operating tool 75. , The cutting height control operation tool 81, the conveyor elevating operation tool 82, the automatic storage operation tool 83, the blower rotation speed adjustment tool 84, the reference height adjustment tool 85, and the reference load adjustment tool 86. The upper end of the accelerator lever 52 and the upper end of the auxiliary transmission lever 53 are substantially the same height as the armrest 68.

As shown in FIGS. 6 and 7, in the fifth region 56e of the operation surface 56 on the outer side of the side panel 54, the sixth virtual inclination, which is a virtual line located on the lateral outer side with respect to the driver's seat 42 in a plan view, is located on the front side. Assuming the line L6 and the seventh virtual inclined line L7, the accelerator lever 52 is configured to be operated along the sixth virtual inclined line L6, and the auxiliary shift lever 53 is configured along the seventh virtual inclined line L7. It is configured in the operation mode to be operated. In this case, the sixth virtual slope line L6 and the seventh virtual slope line L7 are substantially parallel to each other.

In other words, in the fifth region 56e of the operation surface 56 outside the side panel 54, a virtual line extending diagonally laterally from the driver's seat 42 toward the fifth region 56e of the side panel in a plan view. Assuming a certain 8th virtual inclined line L8 and 9th virtual inclined line L9, the accelerator lever 52 is configured to be operated along the 8th virtual inclined line L8, and the auxiliary shift lever 53 is configured to operate along the 8th virtual inclined line L8. It is configured in an operation mode operated along the line L9.

(Structure of the grip of the shifting lever)
As shown in FIGS. 4 and 5, a wide grip portion 51a is provided on the upper part of the shift lever 51, and an operator seated in the driver's seat 42 holds the grip portion 51a of the shift lever 51 with his right hand. Operate the shift lever 51.

The rear surface portion 51b, which is a portion of the grip portion 51a of the speed change lever 51 facing the driver's seat 42, is provided with an ascending operation tool 89, 91, 93, 95 and a lowering operation tool 90, 92, 94, 96. Has been done. The ascending / descending operating tool 97 and the descending operating tool 98 are provided on the front surface portion 51c, which is a portion of the grip portion 51a of the speed change lever 51 facing the opposite side of the driver's seat 42.

The ascending operation tool 89, 91, 93, 95, 97 and the lowering operation tool 90, 92, 94, 96, 98 are return type push buttons, and the ascending operation tool 89, 91, 93, 95, 97 and the lowering operation are performed. The operating positions of the tools 90, 92, 94, 96, 98 are input to the control device 100 shown in FIG.

The horn operating tool 99, which can operate the horn (not shown) by being artificially operated, is the ascending operating tool 89, 91, 93, 95, 97 and the descending operating tool 90 in the grip portion 51a of the speed change lever 51. , 92, 94, 96, 98, and is provided in the portion 51d facing the opposite side of the driver's seat 42.

The horn operating tool 99 is a return type push button, and the operating position of the horn operating tool 99 is input to the control device 100 shown in FIG. When the horn operating tool 99 is pushed, the horn operates, and when the horn operating tool 99 is no longer pushed, the horn stops.

(Structure related to the ascending / descending operating tool in the grip of the shifting lever)
14 and 15 are shown by the control device 100 based on the operating positions of the ascending operating tools 89, 91, 93, 95, 97 and the descending operating tools 90, 92, 94, 96, 98 shown in FIGS. 4 and 5. The control valves 63, 79, 102 are operated, and the hydraulic cylinders 13, 29, 101 and the electric motor 24 are operated as described below.

As shown in FIGS. 4 and 5, when the raising operation tool 89 is pushed while the cutting height control operating tool 81 is operated to the stop position, the front part of the machine body is raised by the hydraulic cylinder 29. Cylinder. When the lowering operation tool 90 is pushed, the hydraulic cylinder 29 lowers the front part of the machine body. If the ascending operation tool 89 and the lowering operation tool 90 are not pushed, the hydraulic cylinder 29 stops.

When the ascending operation tool 91 is pushed, the hydraulic cylinder 101 ascends the upper cutting device 87. When the lowering operation tool 92 is pushed, the hydraulic cylinder 101 lowers the upper cutting device 87. If the ascending operation tool 91 and the lowering operation tool 92 are not pushed, the hydraulic cylinder 101 stops.

When the ascending operation tool 93 is pushed, the left screw 9 is ascended by the left hydraulic cylinder 13. When the lowering operation tool 94 is pushed, the left screw 9 is lowered by the left hydraulic cylinder 13. If the ascending operation tool 93 and the lowering operation tool 94 are not pushed, the left hydraulic cylinder 13 stops.

When the ascending operation tool 95 is pushed, the guide member 23 is ascended by the electric motor 24. When the lowering operation tool 96 is pushed, the guide member 23 is lowered by the electric motor 24. If the ascending operation tool 95 and the lowering operation tool 96 are not pushed, the electric motor 24 stops.

When the ascending operation tool 97 is pushed, the right hydraulic cylinder 13 ascends the right screw 9. When the lowering operation tool 98 is pushed, the right hydraulic cylinder 13 lowers the right screw 9. If the ascending operation tool 97 and the lowering operation tool 98 are not pushed, the right hydraulic cylinder 13 stops.

(Structure of swivel pedal)
As described above (configuration of the driving unit) and FIG. 3, the swivel pedal 50 and the locking tool 61 are provided on the floor 46 of the driving unit 7.

As shown in FIGS. 8, 9 and 10, the support bracket 103 is connected to the floor 46. The support bracket 103 has front and rear support plates 103a and 103b, and pin-shaped left and right stopper portions 103c are connected to the support plates 103a and 103b.

As shown in FIGS. 3, when the eleventh virtual inclined line L11, which is a virtual line extending diagonally forward to the left from the driver's seat 42 in a plan view, is assumed, as shown in FIGS. 8, 9, and 10. The fulcrum shaft 104 is connected to the support plates 103a and 103b of the support bracket 103 so as to be along the horizontal axis P2 along the eleventh virtual inclined line L11.

The boss portion 105 is rotatably supported by the fulcrum shaft 104 around the horizontal axis P2. The operation plate 106 is rotatably connected to the boss portion 105 integrally with the boss portion 105, and the operation plate 106 is arranged between the left and right stopper portions 103c of the support bracket 103. The operation plate 106 passes through the opening 46a of the floor 46 and enters the lower side with respect to the floor 46, and the operation pin 106a is connected to the lower part of the operation plate 106.

The tread 107 is connected to the upper part of the operation plate 106. The tread plate 107 is provided with a flat tread surface portion 107a, the left and right end portions 107b of the tread surface portion 107a are formed upward, and the left and right recesses 107c are formed in the tread surface portion 107a.

As described above, the swivel pedal 50 having the boss portion 105, the operation plate 106 and the operation pin 106a, and the tread plate 107 (tread surface portion 107a and end portion 107b) is provided.
As shown in FIG. 3, the swivel pedal 50 is arranged so as to be offset to the left or right with respect to the left and right center CL of the driver's seat 42 in a plan view, and extends diagonally forward from the driver's seat 42. It is configured to swing around the horizontal axis P2 along the eleventh virtual inclined line L11, and the operator seated in the driver's seat 42 artificially steps the swivel pedal 50 left and right with his left foot. Can be done.

As shown in FIGS. 8 and 9, the receiving member 108 is connected to the end of the fulcrum shaft 104, passes through the opening 46a of the floor 46, and enters below the floor 46. A coiled neutral spring 109 is attached to the boss portion 105, and the right end portion 109a and the left end portion 109b of the neutral spring 109 enter the lower side of the floor 46 through the opening 46a of the floor 46, and the right end portion. The operation pin 106a of the operation plate 106 (swivel pedal 50) and the receiving member 108 are inserted between the 109a and the left end portion 109b.

A channel-shaped support bracket 110 is connected to the lower surface of the floor 46, and a potentiometer-type position sensor 111 is attached to the support bracket 110. A detection arm 111a that can swing around the axis P3 parallel to the horizontal axis P2 is provided in the position sensor 111, and the detection arm 111a is provided by a spring (not shown) provided inside the position sensor 111. Is urged counterclockwise in FIG. 9, and the detection arm 111a hits the operation pin 106a of the operation plate 106 (swivel pedal 50). The detected value of the position sensor 111 is input to the control device 100 shown in FIG.

(Structure of lock tool)
As shown in FIGS. 8, 9 and 10, the locking tool 61 is supported on the upper portion of the support bracket 103 so as to be swingable around the axis P4 orthogonal to the horizontal axis P2.

The lock tool 61 has a flat plate-shaped tread portion 61a, a horizontally long convex portion 61b formed on the lower surface portion of the tread surface portion 61a along the axis P4 and projecting downward, and swings around the axis P4. It has left and right fulcrum portions 61c supported on the upper part of the support bracket 103, and is integrally formed of hard rubber.

As shown in FIG. 3, the lock tool 61 is operated back and forth along the eleventh virtual inclined line L11 which is a virtual line extending diagonally forward to the right from the driver's seat 42 in a plan view. It is possible to switch between the regulated state A1 and the non-regulated state A2.

The states shown in FIGS. 8, 9 and 10 are states in which the lock tool 61 is operated to the restricted state A1. When the lock tool 61 is operated to the restricted state A1, the tread portion 61a of the lock tool 61 enters between the left and right end portions 107b of the swivel pedal 50 (tread plate 107), and the convex portion 61b of the lock tool 61 is a swivel pedal. It comes into contact with the tread portion 107a of the 50 (tread plate 107) from above. The fulcrum portion 61c of the lock tool 61 enters the recess 107c of the swivel pedal 50 (tread plate 107).

As a result, the convex portion 61b of the lock tool 61 comes into contact with the tread portion 107a of the swivel pedal 50 (tread plate 107) from above, and the fulcrum portion 61c of the lock tool 61 is the concave portion of the swivel pedal 50 (tread plate 107). By entering the 107c, the swivel pedal 50 is held in the neutral position, and the stepping operation of the swivel pedal 50 is restricted. A worker seated in the driver's seat 42 can place his left foot on the lock tool 61, which functions as a footrest.

When the lock tool 61 is switched to the non-regulated state A2, the lock tool 61 is swung upward around the axis P4, and the end portion 61d of the fulcrum portion 61c of the lock tool 61 is the support plate 103b of the support bracket 103. Swing operation to the position where it hits the upper end of. As a result, the center of gravity of the lock tool 61 crosses the axis P4 on the opposite side of the swivel pedal 50, so that the lock tool 61 is held in the unregulated state A2.

As shown in FIGS. 8 and 10, in the regulated state A1, the rear end portion of the tread portion 61a of the lock tool 61 protrudes behind the swivel pedal 50 (tread plate 107) (on the driver's seat 42 side). A worker sitting on the seat 42 can switch the lock tool 61 to the unregulated state A2 by lifting the rear end portion of the tread portion 61a of the lock tool 61 upward with the toes of the left foot.

When the lock tool 61 is switched to the non-regulated state A2, the convex portion 61b of the lock tool 61 is separated upward from the tread portion 107a of the swivel pedal 50 (tread plate 107), and the fulcrum portion 61c of the lock tool 61 is the swivel pedal 50. The stepping operation of the swivel pedal 50 is permitted away from the recess 107c of the (tread plate 107) upward.

(Operating state of the swivel pedal)
The state shown in FIG. 11 is a state in which the locking tool 61 is switched to the non-regulated state A2 and the swivel pedal 50 is held in the neutral position by the neutral spring 109. The operation position of the swivel pedal 50 is detected by the position sensor 111, and when the swivel pedal 50 is operated to the neutral position, the swing operation of the conveyor 6 is stopped.

As shown in FIG. 12, when the swivel pedal 50 is stepped to the right from the state shown in FIG. 11, the operation plate 106 swings in the clockwise direction of FIG. With the right end portion 109a of the neutral spring 109 stopped by the receiving member 108, the operation pin 106a of the operation plate 106 pushes the left end portion 109b of the neutral spring 109 clockwise in FIG. 12, and the position sensor 111 is operated. The detection arm 111a of the above swings in the counterclockwise direction of FIG. 12 so as to follow the operation pin 106a of the operation plate 106. When the operation plate 106 hits the stopper portion 103c of the support bracket 103, the stepping operation to the right of the swivel pedal 50 is stopped.

The right stepping operation of the swivel pedal 50 is detected by the position sensor 111, the control valve 72 shown in FIG. 14 is operated by the control device 100 shown in FIG. 15, and the conveyor 6 is operated by the hydraulic cylinder 22 as shown in FIG. It is swung in the counterclockwise direction B1 in a plan view.
When the stepping operation of the swivel pedal 50 to the right is stopped, the swivel pedal 50 returns to the neutral position shown in FIG. 11 by the urging force of the neutral spring 109, and the swing operation of the conveyor 6 is stopped.

As shown in FIG. 13 from the state shown in FIG. 11, when the swivel pedal 50 is stepped on to the left, the operation plate 106 swings in the counterclockwise direction of FIG. With the left end 109b of the neutral spring 109 stopped by the receiving member 108, the operation pin 106a of the operation plate 106 pushes the right end 109a of the neutral spring 109 counterclockwise in FIG. 13 to operate the position sensor. The detection arm 111a of 111 is swung in the clockwise direction of FIG. 13 by the operation pin 106a of the operation plate 106. When the operation plate 106 hits the stopper portion 103c of the support bracket 103, the stepping operation to the left of the swivel pedal 50 is stopped.

The left stepping operation of the swivel pedal 50 is detected by the position sensor 111, the control valve 72 shown in FIG. 14 is operated by the control device 100 shown in FIG. 15, and the conveyor 6 is operated by the hydraulic cylinder 22 as shown in FIG. It is swung in the clockwise direction B2 in a plan view.
When the stepping operation to the left of the swivel pedal 50 is stopped, the swivel pedal 50 returns to the neutral position shown in FIG. 11 by the urging force of the neutral spring 109, and the swing operation of the conveyor 6 is stopped.

The sugar cane harvester works along one side of the field, and when it reaches the end of the field, it makes a 180 degree turn at the end of the field and runs in the opposite direction along one side of the field. Repeat the operation.

In this case, when working along one side of the field, for example, if the carrier travels to the right with respect to the sugar cane harvester and the conveyor 6 is directed to the right, then the sugar cane harvester is at the edge of the field. When the conveyor makes a turn and travels in the opposite direction along one side of the field, the transport vehicle travels on the left side with respect to the sugar cane harvester, so it is necessary to turn the conveyor 6 to the left.

In the work mode as described above, the direction of the conveyor 6 is changed by the swivel pedal 50 when turning at the end of the field, and the conveyor elevating operation tool 82 (the third on the operation surface outside the side panel) described above. The height of the discharge portion 6a of the conveyor 6 is adjusted to match the transport vehicle by raising and lowering the conveyor 6 according to the configuration regarding the region) and (see FIG. 6).

(First Different Form of Implementation of the Invention)
In addition to the functions described in the above-mentioned (operation state of the swivel pedal), the functions of automatic swivel and automatic elevating of the conveyor 6 described below may be provided.

The center position where the conveyor 6 faces directly behind (see FIG. 2), the right-pointing position where the conveyor 6 turns to the right by a predetermined angle (for example, 45 degrees) from the center position in a plan view, and the conveyor 6 is a predetermined angle from the center position in a plan view. A direction selection operation tool (not shown) capable of selecting a center position, a right-facing position, and a left-facing position by setting three positions of a left-facing position that is turned to the left by (for example, 45 degrees) is provided.

A height selection operation tool (not shown) that is equipped with a height sensor (not shown) such as an ultrasonic type that detects the height of the transport vehicle with respect to the discharge unit 6a of the conveyor 6 and can select the storage position and working position. To prepare for.

When the operator operates the orientation selection operation tool to select the rightward position (leftward position) (neutral position), the conveyor 6 is automatically turned and automatically set to the rightward position (leftward position) (neutral position). Stop.

When the operator operates the height selection operation tool to select the work position, the conveyor 6 is automatically raised and lowered based on the detection value of the height sensor, and the discharge portion 6a of the conveyor 6 matches the transport vehicle. At the height, the conveyor 6 automatically stops.
When the operator operates the height selection operation tool to select the storage position, the conveyor 6 is automatically raised and automatically stopped at the upper limit position. This state may be set when moving from one field to the next.

(Second alternative form of carrying out the invention)
In the driving unit 7, the operation box 45, the side panel 54, and the armrest 68 may be arranged on the left side with respect to the driver's seat 42.

The swivel pedal 50 and the lock tool 61 may be arranged so as to be offset to the right side, which is one of the left and right sides, with respect to the left and right center CL of the driver's seat 42 in a plan view. In this configuration, the swivel pedal 50 and the lock tool 61 may be arranged on the right lateral side with respect to the accelerator pedal 47.

(Third alternative form of carrying out the invention)
On the inner and outer operating surfaces 55 and 56 of the side panel 54, the positions of the cutting and transporting device operating tool 36 and the conveyor operating tool 37 are reversed in the left-right direction, and the shift lever 51, the main operating tool 35, and the conveyor operating tool are reversed. The 37 and the cutting / transporting device operating tool 36 may be configured to be arranged side by side along the left-right direction in this order.

The first region 56a and the second region 56b may be used as the front region on the operation surface 56 on the outer side of the side panel 54.

(Fourth Different Embodiment of the Invention)
The main operating tool 35 may be configured in an operation mode including two push buttons, an operation position button that can be artificially pushed and an operation position button that can be artificially pushed.
In this configuration, the operation position button and the stop position button may be arranged along the second virtual inclination line L2.

(Fifth alternative form of carrying out the invention)
The cutting and transporting device operating tool 36 and the conveyor operating tool 37 have a stop position button that can be artificially pushed, a normal rotation position button that can be artificially pushed, and a reverse position button that can be artificially pushed. It may be configured as an operation mode including three push buttons.
In this configuration, the stop position button, the forward rotation position button, and the reverse rotation position button may be arranged along the second virtual inclination line L2.

(Sixth Different Embodiment of the Invention)
The main operating tool 35, the cutting and transporting device operating tool 36, and the conveyor operating tool 37 may all be configured to be operated along the second virtual inclined line L2.

In the main operating tool 35, the cutting and transporting device operating tool 36, and the conveyor operating tool 37, only the main operating tool 35, only the cutting and transporting device operating tool 36, or only the conveyor operating tool 37 is along the second virtual inclined line L2. It may be configured in the operation mode to be operated.

In the main operating tool 35, the cutting and transporting device operating tool 36, and the conveyor operating tool 37, even if the main operating tool 35 and the cutting and transporting device operating tool 36 are configured to be operated along the second virtual inclined line L2. good.

In the main operating tool 35, the cutting and transporting device operating tool 36, and the conveyor operating tool 37, the main operating tool 35 and the conveyor operating tool 37 may be configured in an operation mode in which the main operating tool 35 and the conveyor operating tool 37 are operated along the second virtual inclined line L2.

(7th alternative embodiment of the invention)
Instead of the hydrostatic continuously variable transmission 26, a gear transmission type transmission (not shown) capable of shifting to multiple stages and a belt type continuously variable transmission (not shown) are used as a transmission for traveling. It may be provided.

The present invention can be applied to a sugar cane harvester.

3 Cutting section (cutting and transporting device)
4 Transport equipment (cutting transport equipment)
5 Separator 6 Conveyor 7 Driver 42 Driver's seat 44 Steering wheel (manual control tool)
50 Swivel pedal 51 Shift lever (manual control tool)
61 Locking tool 107a Tread surface A1 Regulated state A2 Unregulated state B1 Counterclockwise direction B2 Clockwise direction CL Left and right center P1 Vertical axis core P2 Horizontal axis core L11 11th virtual tilt line (virtual line)

Claims (4)

A cutting and transporting device that cuts crops in the field and transports them toward the rear of the machine.
A separation device connected to the rear part of the cutting and transporting device and separating waste from the crops transported by the cutting and transporting device.
A conveyor that conveys crops that are extended upward from the lower part of the separation device and whose waste is separated by the separation device.
A driving unit provided above the cutting and transporting device and provided with a driver's seat and an artificially operated manual operating tool is provided.
The conveyor is supported so as to be swingable from side to side around a vertical axis core that passes through the front portion of the conveyor in the vertical direction.
A sugar cane harvester equipped with a swivel pedal that is configured to be able to swing left and right and that can swing the conveyor left and right by being artificially stepped on. When the swivel pedal is stepped to the right, the conveyor is swung counterclockwise in a plan view.
The sugar cane harvester according to claim 1, wherein when the swivel pedal is stepped on to the left, the conveyor is swung clockwise in a plan view. The swivel pedal is arranged in a plan view so as to be offset to the left or right with respect to the left and right center of the driver's seat, and extends diagonally forward to the right or left from the driver's seat. The sugar cane harvester according to claim 1 or 2, which is configured to swing around a horizontal axis along the core. A lock tool that can switch between a regulated state and a non-regulated state is provided in the driving unit.
The locking tool holds the swivel pedal in a neutral position where the swing operation of the conveyor is stopped by contacting the tread surface portion of the swivel pedal from above in the restricted state, and the swivel pedal. The sugar cane harvester according to any one of claims 1 to 3, wherein the stepping operation of the swivel pedal is restricted and the stepping operation of the swivel pedal is permitted by moving away from the tread portion in the non-regulated state.

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