JP7055058B2 - Harvester - Google Patents

Description

The present invention relates to a harvester that harvests crops such as onions, potatoes, carrots and radishes in a field while traveling and stores them in a collection unit of the airframe.

In the carrot harvester, which is an example of a harvester, as disclosed in Patent Document 1, the carrot (corresponding to a crop) in the field is pulled out (harvested) by the harvesting section, and the carrot is transported by the transport section. Some are configured to be put into a collection bag (corresponding to a collection unit) from the end of the unit.

In the carrot harvester as described above, when the collection bag is full, the machine is stopped, the harvesting section and the transport section are stopped, the full collection bag is removed, and the harvested carrots are collected. Attach the collection bag and resume the harvesting work.
In this case, when the collection bag is almost full, the harvesting section and the transport section are operated with the aircraft stopped, and the carrots remaining in the harvest section and the transport section are put into the collection bag without harvesting the carrots in the field. There are times when work such as throwing in is performed.

Japanese Unexamined Patent Publication No. 2016-136894

In the carrot harvester of Patent Document 1, the harvesting of carrots and the recovery of the harvested carrots (replacement from a full collection bag to an empty collection bag, etc.) are repeated, which is an aspect of saving fuel. There is room for improvement.

An object of the present invention is to save fuel in a harvester in which harvesting of crops and recovery of harvested crops are repeated.

The harvester of the present invention
The harvesting department, the harvesting department, and the harvesting department, which harvest the crops in the field.
A transport section is provided for transporting the crops harvested by the harvest section and feeding the crops from the terminal section to the recovery section.
It is equipped with an aircraft stop detection unit that detects that the aircraft is in a stopped state, a harvest stop detection unit that detects that the harvesting unit is in a stopped state, and a setting operation unit that artificially sets the engine speed. Being
When the machine stop detection unit is in the detection state and the harvest stop detection unit is in the detection state, the engine rotation speed is lowered to a predetermined low rotation speed lower than the set rotation speed set by the setting operation unit. Equipped with an engine speed control unit
The recovery unit or the collection unit is located at an approaching position where the terminal portion of the transport unit and the collection unit are close to each other in the vertical direction, and a separation position where the terminal portion of the transport unit and the collection unit are separated from each other in the vertical direction. Equipped with an elevating mechanism to elevate and lower the transport unit
The engine rotation operation unit is
When the elevating mechanism is operated in a state where the rotation speed of the engine is lowered to the predetermined low rotation speed, the rotation speed of the engine is raised from the predetermined low rotation speed to the set rotation speed.
The collection unit is configured so that the crops that have fallen from the transport unit hit the dispersion unit and are dispersed and charged inside the collection unit by the dispersion unit.
The dispersion is movably supported between an action position where the crop is dispersed below the end of the transport section and a non-action position away from the action position, and the recovery section is It is configured to move to the action position when operated to the approach position.
A harvesting section switch that can be switched between an operating position for driving the harvesting section and a stop position for stopping the harvesting section is provided.
A transport unit switch that can be switched between an operating position for driving the transport unit and a stop position for stopping the transport unit is provided.
When the harvesting unit switch is operated to the operating position, the transport unit switch is configured to be operated to the operating position in conjunction with the operation.

The harvester is equipped with a setting operation unit (accelerator lever, etc.) that artificially sets the engine speed, and the operator operates the setting operation unit to set the desired set speed and set the engine. Harvesting work is often performed by operating at the number of revolutions.

According to the present invention, when the recovery unit is full in the state where the engine is operated at the set rotation speed and the harvesting operation is performed as described above, when the machine is stopped and the harvesting unit is stopped, the engine of the engine is stopped. The rotation speed is automatically lowered to a predetermined low rotation speed lower than the set rotation speed.
Therefore, during this period, the crops in the recovery section may be transferred to another carrier or the like for recovery, and the engine speed may be lowered to a predetermined low speed to save fuel. can.

For example, when the collection section is nearly full, the harvesting section and the transport section are operated with the aircraft stopped, and the crops remaining in the harvest section and the transport section are put into the recovery section without harvesting the crops in the field. You may do such work.

When performing the above-mentioned work, according to the present invention, the engine speed is maintained at the set speed without the lowering operation, so that the harvesting part and the transporting part can be operated without any trouble, and the harvesting part and the transporting part can be operated without any trouble. The crops remaining in the transport section can be put into the recovery section without any trouble, and the workability is improved.
In the harvester, if the end of the transport section and the recovery section are separated in the vertical direction, for example, when the recovery section is empty, the end of the transport section when the crop is loaded from the end of the transport section. Depending on the size of the head between the section and the recovery section, the crop may collide with the recovery section and be damaged.
In this case, the recovery unit or the transport unit is moved over the approaching position where the terminal portion of the transport unit and the recovery unit are close to each other in the vertical direction and the separation position where the terminal portion and the collection unit of the transport unit are separated from each other in the vertical direction. It may be equipped with an elevating mechanism for elevating.
When the collection unit is empty, the collection unit or the transportation unit can be moved up and down to an approaching position to reduce the difference between the end portion of the transportation unit and the collection unit, and damage to the crop can be suppressed. As the crops are thrown into the collection section due to the progress of the harvesting work, the recovery section or the transport section may be moved up and down to a separated position accordingly.
When the collection unit is full, the collection unit or the transport unit is moved up and down to a separated position. In this state, the aircraft is stopped, the harvesting section and the transport section are stopped (the engine speed is lowered to a predetermined low speed), and the crops in the recovery section are transferred to another carrier or the like for recovery. ..
After that, when the harvesting work is restarted, the collection unit is empty and the difference between the end portion of the transportation unit and the collection unit is large. Reduce the difference between the end of the harvest and the recovery section, and restart the harvesting work.
According to the present invention, in a state where the engine rotation speed is lowered to a predetermined low rotation speed, the engine rotation speed is set when the raising / lowering mechanism is operated in order to raise / lower the recovery unit or the transport unit to an approaching position. It is automatically increased to the number of revolutions.
As a result, the elevating mechanism can be operated without difficulty without the need for the operator to manually raise the engine speed to the set speed, and the harvesting work can be resumed without any trouble. It becomes possible to do it, and the workability becomes good.

In the present invention
The engine rotation operation unit is
When at least one of the machine stop detection unit and the harvest stop detection unit is in the non-detection state while the engine rotation speed is lowered to the predetermined low rotation speed, the engine rotation speed is set to the predetermined engine speed. It is preferable to perform an increase operation from a low rotation speed to the set rotation speed.

When the harvesting work is resumed after the crops in the collecting section are transferred to another carrier or the like and then the harvesting operation is resumed, according to the present invention, when the aircraft is started or the harvesting section is operated, the engine speed is predetermined. The operation is automatically increased from the low rotation speed to the set rotation speed.
As a result, the harvesting work can be resumed without difficulty without the operator manually increasing the engine speed to the set speed, and the workability is improved.

In the present invention
The upper part of the collection part is opened,
The elevating mechanism
The approaching position where the recovery unit is lifted to a sideways posture so that the end portion of the transport unit enters the upper part of the collection unit.
The upper part of the collection part is located below the terminal part of the transport part, and the bottom part of the collection part is located below the upper part of the collection part. It is preferable to raise and lower the recovery unit.

The harvester may be provided with a box-shaped collection unit instead of the collection bag as disclosed in Patent Document 1. As a box-shaped collection part, for example, a frame is composed of a metal frame, plates and wire mesh are attached to the bottom and side of the frame, and the upper part where crops are put is open. Larger capacity can be obtained compared to bags.

According to the present invention, in the harvester provided with the box-shaped collection unit as described above, for example, when the collection unit is empty, the collection unit may be moved up and down to an approaching position. At the approaching position, the recovery unit is in a sideways posture in which the upper part of the collection unit faces sideways, and the terminal portion of the transport unit is inserted into the upper part of the collection unit.
In this state, the lateral portion is located below the terminal portion of the transport unit, not the bottom portion of the recovery unit, and the difference between the terminal portion of the transport unit and the lateral portion of the recovery unit is small. There is.

As a result, when the crop is thrown into the collection section from the end of the transport section, the crop falls to the side of the recovery section, and the difference between the end of the transport section and the side of the recovery section is small. This makes it possible to suppress damage to the crop when the crop is thrown into the recovery section from the terminal portion of the transport section.
In this case, when the crop falls to the side of the recovery section, the crop often rolls from the side of the recovery section to the bottom of the recovery section, so that the crop stays under the end of the transport section. It is thrown into the collection section without doing anything.

As the crops are thrown into the collection section as the harvesting work progresses, the recovery section may be moved up and down to the separated position side accordingly.
In this case, with the drop from the end of the transport section suppressed to a small size, the end of the transport section is pulled out from the upper part of the recovery section, and the recovery section is recovered from the sideways posture at the approaching position. The upper part of the part is in an upright posture facing upward, and the change in the posture of the collection part during this period causes the crops to enter every corner of the collection part.

When the collection unit is nearly full, if the collection unit is operated to a separated position, the upper part of the collection unit will be located below the end of the transport unit, and the collection unit will be in an upright position, so the crops will be transported. Since it is thrown into the collection unit from the end of the unit without spilling, the collection unit can be filled without difficulty.
When the collection unit is full, the crop may be moved from the collection unit to another carrier or the like, the collection unit may be emptied, the collection unit may be moved up and down to an approaching position, and the harvesting operation may be resumed.

As described above, according to the present invention, in a harvester provided with a recovery section having an open upper portion, damage to the crop when the crop is thrown into the recovery section from the terminal portion of the transport section is suppressed, and the crop spills out. It is possible to fill the recovery part reasonably while avoiding the above, and it is possible to improve the working performance of the harvester.

It is a right side view of the harvester. It is a figure which shows the linkage state of a control device and each part. It is a figure which shows the linkage state of a control device and each part. It is a right side view which shows the work flow at the start of a harvesting work (installation of a collection container). It is a right side view which shows the flow of the first half of a harvesting work. It is a right side view which shows the flow of the first half of a harvesting work. It is a right side view which shows the flow of the middle half of a harvesting work. It is a right side view which shows the flow of the latter half of a harvesting work. It is a right side view which shows the flow of the end of a harvesting work. It is a right side view which shows the flow of the replacement work of a collection container. It is a right side view which shows the flow of the replacement work of a collection container. It is a right side view which shows the flow of the replacement work of a collection container.

1 to 12 show an onion harvester, which is an example of a harvester.
In the harvest of onion A (corresponding to a crop), the onion A buried in the field G is dug out by a digging machine (not shown), the onion A is placed at the dug out position, and then the onion A is placed in the field. Leave in G for several days to dry. The harvester of the present invention picks up and harvests the onion A placed in the field G after the drying is completed.

In FIGS. 1 to 12, F indicates "forward direction", B indicates "rear direction", U indicates "upward direction", and D indicates "downward direction". R indicates "to the right" and L indicates "to the left".

(Overall composition of the harvester)
As shown in FIG. 1, the machine body 10 is supported by the right and left crawler type traveling devices 1, the harvesting section 2 is supported by the front portion of the machine body 10, and the transport section 3 is supported by the rear side of the harvesting section 2. And the dispersion part 4 is supported by the machine body 10, and the recovery part 5 is supported by the rear part of the machine body 10.
A driving unit 6 is provided on the right front side of the machine body 10, and a work deck 7 is provided on the right and left side surfaces of the transport unit 3.

As shown in FIG. 2, an engine 20 and a hydrostatic type continuously variable transmission 21 are provided in the machine body 10, the power of the engine 20 is transmitted to the continuously variable transmission 21, and the continuously variable transmission 21 shifts gears. The generated power is transmitted to the traveling device 1.
The continuously variable transmission 21 is continuously variable from the neutral position to the forward side and the reverse side, and the continuously variable transmission 21 can be operated by the speed change lever 22 provided in the driving unit 6.

As the machine 10 advances, the onion A in the field G is picked up by the harvesting unit 2, and the onion A is lifted upward by the harvesting unit 2 and delivered to the transport unit 3. The onion A is transported to the rear side by the transport unit 3, and is charged into the collection unit 5 from the terminal portion 3a of the transport unit 3 via the dispersion unit 4 and collected.

In addition to the driver of the driving unit 6, auxiliary workers are standing on the right and left work decks 7. When the auxiliary worker takes out the defective onion A from the onion A transported to the transport unit 3 or the onion A stays in the transport unit 3, the auxiliary worker deals with the retention of the onion A.

(Structure of harvesting department)
As shown in FIG. 1, the harvesting unit 2 is provided with a picking device 8 and a scraping device 9.

The pick-up device 8 is connected to the front portion of the machine body 10 along the vertical direction, the lower end portion of the pick-up device 8 is arranged at a position substantially in contact with the field G, and the upper end portion of the pick-up device 8 is the start end of the transport portion 3. It is located on the upper side of the part.

In the pick-up device 8, a wide endless rotating body 11 having a left-right width close to the left-right width of the machine body 10 is erected over the lower end portion and the upper end portion of the pick-up device 8, and a large number of pick-up members 12 are provided. It is connected to the rotating body 11.

When the rotating body 11 is rotationally driven in the counterclockwise direction of FIG. 1, the onion A of the field G is picked up by the picking-up member 12 at the lower end portion of the pick-up device 8 and lifted upward along the rotating body 11. Then, it is delivered from the upper end portion of the pick-up device 8 to the start end portion of the transport unit 3.

The scraping device 9 is supported so as to swing up and down around the axis P1 in the left-right direction at the lower end of the picking device 8, and the hydraulic cylinder 13 that swings the scraping device 9 is the picking device 8. It is connected to the scraping device 9.

In the scraping device 9, right and left rotary chains 14 are arranged at substantially the same left-right spacing as the left-right width of the pick-up device 8, and a large number of rubber plate scraping members 15 are attached to the right and left rotary chains 14. The right and left ground rings 16 are supported at positions on the front side of the right and left rotary chains 14 so as to be connected to each other.

In the field G, the machine body 10 is advanced with the ground ring 16 positioned on the right side and the left side of the portion (ridge) where the onion A is placed, and the rotary chain 14 is rotationally driven in the clockwise direction of FIG. Will be done.
As a result, the scraping member 15 contacts the onion A in the field G from the upper side of the field G, and handles the onion A to the rear side (picking device 8 side). ) Is assisted in picking up the onion A from the lower end.

As shown in FIG. 2, hydraulic pumps 23 and 24 driven by the power of the engine 20 are provided, and a hydraulic motor 25 for rotationally driving the rotating body 11 of the pick-up device 8 and the rotary chain 14 of the scraping device 9 is provided. It is prepared.

The hydraulic oil of the hydraulic pump 23 is supplied to the hydraulic motor 25 via an electromagnetically operated type control valve 27, and the hydraulic motor 25 can be operated and stopped by operating the control valve 27.

(Structure of transport unit)
As shown in FIG. 1, the transport unit 3 is provided with a first transport device 17 on the front side and a second transport device 18 on the rear side.

The first transport device 17 has a left-right width substantially the same as the left-right width of the pick-up device 8, and is arranged below the upper end portion of the pick-up device 8, and is arranged diagonally forward and upward in a side view.
The second transfer device 18 has a left-right width substantially the same as the left-right width of the first transfer device 17 and the pick-up device 8, and is arranged on the rear side of the first transfer device 17, and is arranged diagonally backward and upward in a side view. Has been done.

An arch-shaped (channel-shaped) frame 19 is provided in front view, and the right leg portion of the frame 19 is connected to the right lateral portion of the second transport device 18, and the left lateral portion of the second transport device 18 is provided. The left leg of the frame 19 is connected to the portion.

As shown in FIG. 2, a hydraulic motor 26 for rotationally driving the first transfer device 17 and the second transfer device 18 is provided. The hydraulic oil of the hydraulic pump 23 is supplied to the hydraulic motor 26 via an electromagnetically operated type control valve 28, and the hydraulic motor 26 can be operated and stopped by operating the control valve 28.

The pick-up device 8 picks up the onion A in the field G and lifts it upward, and the onion A is delivered from the upper end portion of the pick-up device 8 to the first transport device 17 (the start end portion of the transport unit 3) (the above-mentioned (harvesting). Part structure)).
The onion A is conveyed to the rear side by the first transfer device 17, is delivered to the second transfer device 18, and is conveyed to the rear side by the second transfer device 18.

Auxiliary workers standing on the right and left work decks 7 take out defective onions A from the onions A transported by the second transport device 18 (conveyor unit 3), or in the second transport device 18 (conveyor unit 3). If the onion A stays or the like occurs, the onion A stays or the like is dealt with. In this case, the auxiliary worker can stabilize the body by holding the frame 19.

The onion A is transported to the rear side by the second transport device 18, falls from the terminal portion of the second transport device 18 (the terminal portion 3a of the transport unit 3), hits the dispersion unit 4, and is transferred from the dispersion unit 4 to the collection unit 5. It is thrown in and collected.

(Structure of distributed part)
As shown in FIGS. 1 and 3, a dispersion portion 4 is provided below the terminal portion (termination portion 3a of the transport unit 3) of the second transport device 18. The dispersion unit 4 is moved and operated over the working position B1 below the terminal portion of the second transport device 18 (the terminal portion 3a of the transport unit 3) and the non-acting position B2 away from the working position B1.

As shown in FIGS. Is evenly charged into each part of the collection part 5.

As shown in FIG. 3, the operation arm 39 is swingably supported around the axis P2 in the left-right direction of the rear portion of the machine body 10, and the upper end portion of the operation arm 39 is connected to the dispersion portion 4 for operation. A removable hydraulic cylinder 40 for swinging the arm 39 is provided. A crop sensor 37 is attached to the rear end of the dispersion portion 4.

In the states shown in FIGS. It is in a state of being. When the hydraulic cylinder 40 is extended and operated from the states shown in FIGS. It moves to the front side and is moved to the non-acting position B2.

(Structure of collection unit)
As shown in FIGS. 1 and 3, the collection unit 5 is provided with a support frame 29, a support arm 30, a frame 33, a guide cover 34, and the like, and a collection container 42 is installed in the collection unit 5.

A hydraulic cylinder 31 (corresponding to an elevating mechanism), in which a support frame 29 is swingably supported up and down around the axis P3 in the left-right direction at the rear portion of the machine body 10 and swings the support frame 29, is a machine body 10. It is connected to the rear portion and the support frame 29. By expanding and contracting the hydraulic cylinder 31, the support frame 29 can be moved up and down over the approach position E1 (see FIGS. 5 and 6) and the distance position E6 (see FIGS. 8, 9 and 10).

A potentiometer-type position sensor 35 is attached near the axis P3, and the position of the support frame 29 is detected by the position sensor 35 between the approach position E1 and the distance position E6.

A fork-shaped support arm 30 is swingably supported up and down around the axis P4 in the left-right direction at the bottom of the support frame 29 and extends to the rear side, and a hydraulic cylinder that swings the support arm 30. 32 is connected over the support frame 29 and the support arm 30. By expanding and contracting the hydraulic cylinder 32, the support arm 30 can be swung to the support position C1 and the detachment position C2.

A frame 33 having an arch shape (channel shape) in front view is provided. The right lateral portion of the frame 33 is swingably supported by the right end portion of the upper end portion of the support frame 29 around the axis in the left-right direction, and the left lateral portion of the frame 33 is the upper end portion of the support frame 29. It is swingably supported around the axis in the left-right direction at the left end of the portion.

A guide cover 34 is attached to the upper portion of the frame 33, the right and left lateral portions, and an opening is formed in the central portion of the guide cover 34. The guide cover 34 is in the form of a flexible sheet, such as a synthetic fiber cloth or a synthetic resin vinyl sheet.

(Composition of collection container)
As shown in FIGS. 1 and 4, a collection container 42 is prepared. In the collection container 42, a box-shaped framework is formed by a metal frame, and a plate material or a wire mesh is attached to the bottom portion 42b and the lateral portion 42c of the framework, and the upper portion 42a is open.

The collection container 42 can be installed on the support frame 29 and the support arm 30 from the rear side, and can be pulled out from the support frame 29 and the support arm 30 on the rear side. With the collection container 42 installed on the support frame 29 and the support arm 30, the onion A is charged from the upper portion 42a of the collection container 42, as will be described later.

(Structure of control system related to engine)
As shown in FIG. 2, the airframe 10 is provided with a control device 36. The dial operation type setting operation unit 38 and the manual operation type mode switch 41 are provided in the operation unit 6, and the operation signals of the setting operation unit 38 and the mode switch 41 are input to the control device 36. ing. The setting operation unit 38 and the mode switch 41 are mainly operated by the driver of the operation unit 6.

The setting operation unit 38 artificially sets the rotation speed of the engine 20 and can be operated over the idling position MIN and the maximum rotation position MAX. An accelerator unit 44 for adjusting the fuel injection amount of the engine 20 to control the rotation speed of the engine 20 is provided, and an engine rotation operation unit 61 is provided in the control device 36 as software.

When the mode switch 41 is operated to the manual position, the accelerator is adjusted by the control device 36 (engine rotation operation unit 61) so that the rotation speed of the engine 20 becomes the set rotation speed M1 corresponding to the operation position of the setting operation unit 38. The unit 44 is operated. By operating the setting operation unit 38, the set rotation speed M1 (the rotation speed of the engine 20) can be arbitrarily set between the idling position MIN and the maximum rotation position MAX.

When the mode switch 41 is operated to the automatic position, the control device 36 (engine) is described later (work flow at the start of harvesting work (installation of collection container)) to (flow of replacement work of collection container). The accelerator unit 44 is automatically operated by the rotation operation unit 61).

(Structure of control system related to work system and running system)
As shown in FIG. 2, a manually operated type harvesting unit switch 43 for operating the control valve 27 and a manually operated type transport unit switch 54 for operating the control valve 28 are located at the rear of the operating unit 6 (right work deck). 7), and the operation signals of the harvesting unit switch 43 and the transport unit switch 54 are input to the control device 36. The harvesting section switch 43 and the transport section switch 54 can be operated by both the driver of the driving section 6 and the auxiliary worker of the work deck 7 on the right.

When the harvesting unit switch 43 is operated to the operating position, the hydraulic oil of the hydraulic pump 24 is supplied from the control valve 27 to the hydraulic motor 25 to operate the hydraulic motor 25, and the pick-up device 8 and the scraping device 9 are rotationally driven.
When the harvesting unit switch 43 is operated to the stop position, the supply of working oil from the control valve 27 to the hydraulic motor 25 is cut off, the hydraulic motor 25 is stopped, and the pick-up device 8 and the scraping device 9 are stopped.

When the transfer unit switch 54 is operated to the operating position, the hydraulic oil of the hydraulic pump 24 is supplied from the control valve 28 to the hydraulic motor 26 to operate the hydraulic motor 26, and the first transfer device 17 and the second transfer device 18 are rotationally driven. Ru.
When the transfer unit switch 54 is operated to the stop position, the supply of working oil from the control valve 28 to the hydraulic motor 26 is cut off, the hydraulic motor 26 is stopped, and the first transfer device 17 and the second transfer device 18 are stopped.

A shift position sensor 45 for detecting the operation position of the shift lever 22 is provided, and a detection signal of the shift position sensor 45 is input to the control device 36. The aircraft stop detection unit 62 is provided in the control device 36 as software, and when it is detected by the shift position sensor 45 that the shift lever 22 is operated to the neutral position, the aircraft stop detection unit 62 stops the aircraft 10. (Corresponding to the detection state of the aircraft stop detection unit 62).

The harvest stop detection unit 63 is provided in the control device 36 as software, and when the harvest unit switch 43 is operated to the stop position, the harvest stop detection unit 63 causes the harvest unit 2 (pick-up device 8 and scraping device 9) to operate. It is determined that the harvest state is stopped (corresponding to the detection state of the harvest stop detection unit 63).

(Structure of control system for raising and lowering the support frame and support arm of the recovery unit)
As shown in FIG. 3, the detection signal of the crop sensor 37 is input to the control device 36, and the detection value of the position sensor 35 is input to the control device 36.

The hydraulic cylinders 31, 32, 40 are provided with electromagnetically operated control valves 46, 47, 48 that supply and discharge hydraulic oil to expand and contract the hydraulic cylinders 31, 32, 40.
The control device 36 is provided with an elevating operation unit 64 for operating the control valve 46, a release operation unit 65 for operating the control valve 47, a movement operation unit 66 for operating the control valve 48, and a fullness detection unit 67 as software. ..

A manual lever type elevating switch 49 is provided at the rear of the driving unit 6 (front of the work deck 7 on the right), and an operation signal of the elevating switch 49 is input to the control device 36.
The elevating switch 49 can be operated freely in the stop position, the ascending position, and the descending position, and is urged to the stop position. The control valve 46 is operated to expand and contract the hydraulic cylinder 31.

The withdrawal switch 50 and the automatic descent switch 51 are provided in the rear part of the driving unit 6 (the front part of the work deck 7 on the right), and the operation signals of the withdrawal switch 50 and the automatic descent switch 51 are input to the control device 36. There is.

Both the driver of the driving unit 6 and the auxiliary worker of the work deck 7 on the right can operate the elevating switch 49, the withdrawal switch 50, and the automatic descent switch 51.
An alarm buzzer 52 is provided in both the operation unit 6 and the work deck 7, and an alarm lamp 53 is provided in the meter panel (not shown) of the operation unit 6.

Based on the operation signals of the setting operation unit 38, the mode switch 41, the elevating switch 49, the detachment switch 50 and the automatic descent switch 51, and the detection signals of the position sensor 35 and the crop sensor 37, the following (at the start of harvesting work (collection container) (Installation)) to (Recovery container replacement work flow), control device 36 (engine rotation operation unit 61, machine stop detection unit 62, harvest stop detection unit 63, elevating operation unit 64). , The release operation unit 65, the movement operation unit 66, and the fullness detection unit 67) operate the accelerator unit 44 and the control valves 46, 47, 48.

(Work flow at the start of harvesting work (installation of collection container))
The desired set rotation speed M1 is set by the setting operation unit 38, and the mode switch 41 is operated to the automatic position.

As shown in FIG. 4, the speed change lever 22 is operated to the neutral position (stopped state of the machine body 10), and the harvesting section switch 43 and the transport section switch 54 are operated to the stopped positions (stopped state of the harvesting section 2 and the transport section 3). In this state, an empty collection container 42 is installed on the support frame 29 and the support arm 30 from the rear side by another work vehicle (not shown).

In this case, the support frame 29 is located at the separation position E6, the support arm 30 is located at the support position C1, the dispersion portion 4 is located at the non-acting position B2, and the guide cover 34 and the frame 33 stand upright.

When the shift lever 22 is operated to the neutral position, the machine stop detection unit 62 is in the detection state, and when the harvest unit switch 43 is operated to the stop position, the harvest stop detection unit 63 is in the detection state.

As a result, with the desired set rotation speed M1 set by the setting operation unit 38, the accelerator unit 44 is operated by the engine rotation operation unit 61, and the rotation speed of the engine 20 is changed from the set rotation speed M1 to the idling rotation speed ( It is automatically lowered to a predetermined low rotation speed).

(Work flow at the start of harvesting work (operation to the approaching position of the support frame))
As shown in FIG. 4, the end portion of the second transport device 18 (the end portion 3a of the transport portion 3) protrudes to the rear side of the axis P3 in a side view and enters the opening of the guide cover 34. , It is located above the upper portion 42a of the collection container 42.

In the state shown in FIG. 4, the elevating switch 49 is operated to the ascending position, and as shown in FIG. 5, the hydraulic cylinder 31 is extended and operated to ascend the support frame 29. At the same time, the hydraulic cylinder 40 contracts, and the dispersion portion 4 is automatically moved from the non-action position B2 through the opening of the guide cover 34 to the action position B1.

When the elevating switch 49 is operated to the ascending position (when the hydraulic cylinder 31 is extended), the accelerator unit 44 is operated by the engine rotation operation unit 61, and the rotation speed of the engine 20 is set from the idling rotation speed without delay. It is automatically raised to the rotation speed M1.

As shown in FIG. 5, when the support frame 29 reaches the approach position E1, the elevating switch 49 is operated to the stop position to stop the hydraulic cylinder 31. When the dispersion portion 4 reaches the action position B1, the hydraulic cylinder 40 automatically stops.

When the elevating switch 49 is operated to the stop position (when the hydraulic cylinder 31 is stopped), the accelerator unit 44 is operated by the engine rotation operation unit 61, and the rotation speed of the engine 20 is automatically changed from the set rotation speed M1 to the idling rotation speed. The lowering operation is performed.

When the support frame 29 is lifted from the separation position E6, the guide cover 34 and the frame 33 tend to fall forward, and the guide cover 34 and the frame 33 hit the frame 19 to cause the guide cover 34 and the frame 33 to fall forward. The 34 and the frame 33 are in a state along the upper portion 42a of the collection container 42.

In the state where the support frame 29 is located at the approach position E1, the collection container 42 is in a sideways posture in which the upper portion 42a of the collection container 42 faces forward (sideways), and the terminal portion (conveyance) of the second transfer device 18 (conveyance). The terminal portion 3a) of the portion 3 and the dispersion portion 4 enter the upper portion 42a of the collection container 42 and enter the inside of the collection container 42.

(Flow of the first half of harvesting work)
As shown in FIG. 5, the automatic descent switch 51 is operated to the ON position while the support frame 29 is located at the approach position E1. As shown in FIG. 6, the shift lever 22 is operated to the forward side, and the harvesting unit switch 43 and the transporting unit switch 54 are operated to the operating positions to start the harvesting operation.

In this case, when the harvesting unit switch 43 is operated to the operating position while the transport unit switch 54 is operated to the stop position, the transport unit switch 54 is automatically operated to the operating position in conjunction with this. This is because it is not possible to assume a state in which the harvesting unit 2 (picking device 8 and scraping device 9) is operated while the transport unit 3 (first transport device 17 and second transport device 18) is stopped.

When the shift lever 22 is operated to the forward side, the machine stop detection unit 62 is in the non-detection state, and when the harvest unit switch 43 is operated to the operating position, the harvest stop detection unit 63 is in the non-detection state. ..

As a result, the accelerator unit 44 is operated by the engine rotation operation unit 61, and the rotation speed of the engine 20 is automatically increased from the idling rotation speed to the set rotation speed M1 without delay.

As shown in FIG. 6, in a state where the support frame 29 is located at the approach position E1, the collection container 42 is placed under the terminal portion (termination portion 3a of the transport portion 3) and the dispersion portion 4 of the second transport device 18. The lateral portion 42c is located instead of the bottom portion 42b, and the difference between the terminal portion (terminal portion 3a of the transport portion 3) and the dispersion portion 4 of the second transport device 18 and the lateral portion 42c of the collection container 42 is small. (Corresponding to a state in which the terminal portion of the second transport device 18 (termination portion 3a of the transport unit 3) and the collection unit 5 (collection container 42) are close to each other in the vertical direction).

As a result, when the onion A is put into the collection container 42 from the terminal portion of the second transport device 18 (the terminal portion 3a of the transport unit 3), the onion A falls to the lateral portion 42c of the collection container 42. The onion A is the terminal portion of the second transport device 18 due to the small head between the terminal portion (termination portion 3a of the transport unit 3) and the dispersion portion 4 of the second transport device 18 and the lateral portion 42c of the collection container 42. Damage to the onion A when it is put into the collection container 42 from (the terminal portion 3a of the transport portion 3) can be suppressed.

When the onion A coming out of the terminal portion of the second transport device 18 (the terminal portion 3a of the transport unit 3) hits the dispersion unit 4, the onion A is charged into the collection container 42 while being dispersed by the dispersion unit 4. The onion A can be easily charged into each part of the collection container 42 without being biased to a part of the collection container 42, and the onion A can easily enter every corner of the collection container 42.

When the onion A falls on the lateral portion 42c of the collection container 42, the onion A often rolls from the lateral portion 42c of the collection container 42 to the bottom 42b side of the collection container 42, so that the onion A is the second transport device. It is charged into the collection container 42 without staying under the terminal portion (terminal portion 3a of the transport portion 3) of 18.

(Flow of the middle half of harvesting work)
As the harvesting work progresses, the onions A are piled up in the collection container 42, and the onions A reach the position of the crop sensor 37.

The onions A stacked in the collection container 42 push up the contact portion of the crop sensor 37 from the lower side, and the state in which the contact portion of the crop sensor 37 is pushed up from the lower side over a set time (for example, several seconds). When maintained, the crop sensor 37 is in a state of detecting onion A.

When the onion A piled up in the collection container 42 is detected by the crop sensor 37, the onion A is placed in the vicinity of the terminal portion (terminal portion 3a of the transport portion 3) of the second transport device 18 (near the dispersion portion 4). Judged to exist.

As shown in FIGS. 3, 6 and 7, when the automatic descent switch 51 is operated to the ON position, a plurality of intermediate positions E2, E3, E4 and E5 are formed between the approach position E1 and the separation position E6. It is set.

When the onions A stacked in the collection container 42 are detected by the crop sensor 37, the hydraulic cylinder 31 contracts and the support frame 29 is lowered from the approach position E1 as shown in FIG. 7, and the support frame 29 is operated. When reaches the intermediate position E2, the hydraulic cylinder 31 stops based on the detected value of the position sensor 35.
By lowering the support frame 29 to the intermediate position E2, the onions A stacked in the collection container 42 move downward from the crop sensor 37.

In the state where the support frame 29 is located at the intermediate position E2, when the onion A piled up in the collection container 42 is detected by the crop sensor 37 as the harvesting work progresses, the hydraulic cylinder 31 contracts and supports. When the frame 29 is lowered from the intermediate position E2 and the support frame 29 reaches the intermediate position E3, the hydraulic cylinder 31 stops based on the detected value of the position sensor 35.
By lowering the support frame 29 to the intermediate position E3, the onions A stacked in the collection container 42 move downward from the crop sensor 37.

(Flow of the latter half of harvesting work)
By repeating the operation described in the previous section (flow in the middle half of the harvesting work), the support frame 29 has the approach position E1 to the intermediate position E2, the intermediate position E2 to the intermediate position E3, and the intermediate position E3 to the intermediate position E4. It is automatically lowered stepwise from the intermediate position E4 to the intermediate position E5 and from the intermediate position E5 to the separated position E6.

When the automatic descent switch 51 is operated to the ON position, the automatic descent operation of the support frame 29 as described above is performed, and when the automatic descent switch 51 is operated to the OFF position, as described above. The automatic lowering operation of the support frame 29 is not performed.

When the automatic descent switch 51 is operated to the OFF position, the driver or the auxiliary operator operates the elevating switch 49 to the descent position and the stop position, so that the support frame 29 is moved from the approach position E1 to the separation position E6. It can be lowered to any position and stopped.

By lowering the support frame 29 from the approaching position E1 to the separating position E6 through the intermediate positions E2 to E5, the terminal portion (terminal portion 3a of the transport portion 3) and the dispersion portion 4 of the second transport device 18 are moved. , The state is gradually pulled out from the upper portion 42a of the collection container 42.

Along with this, the collection container 42 changes from a sideways posture at the approaching position E1 to an upright posture in which the upper portion 42a of the collection container 42 faces upward, and the change in the posture of the collection container 42 during this period causes onions. A enters every corner of the collection container 42.

The guide cover 34 and the frame 33 are lowered together with the support frame 29, and the guide cover 34 is located around the upper portion 42a of the collection container 42. As a result, the guide cover 34 prevents the onion A from spilling from the upper portion 42a of the collection container 42.

As shown in FIG. 8, in a state where the support frame 29 is located at the separation position E6, the collection container 42 is placed under the terminal portion (termination portion 3a of the transport portion 3) and the dispersion portion 4 of the second transport device 18. The collection container 42 is in an upright position so that the upper portion 42a is located and the bottom portion 42b of the collection container 42 is located below the upper portion 42a of the collection container 42 (the terminal portion of the second transport device 18 (conveyor portion 3). 3a) and the collection unit 5 (collection container 42) are separated from each other in the vertical direction).

As a result, the onion A is charged into the collection container 42 from the end portion of the second transport device 18 (the end portion 3a of the transport unit 3) without spilling, so that the collection container 42 can be filled without difficulty. can.

(Flow of completion of harvesting work)
As shown in FIG. 8, when the position sensor 35 detects that the support frame 29 is located at the separation position E6, and the onion A stacked in the collection container 42 is detected by the crop sensor 37, the fullness is detected. It is determined by the unit 67 that the collection container 42 is sufficiently full, the alarm buzzer 52 is activated, and the alarm lamp 53 is turned on.

When a predetermined time (for example, several seconds) has elapsed after the alarm buzzer 52 is activated and the alarm lamp 53 is turned on, the alarm buzzer 52 is stopped and the alarm lamp 53 is turned off.
When the alarm buzzer 52 is stopped and the alarm lamp 53 is turned off, as shown in FIG. 9, the hydraulic cylinder 40 is extended and the dispersion portion 4 passes from the action position B1 through the opening of the guide cover 34 to the non-action position. It is automatically moved to B2.

After the state shown in FIG. 9, by continuing the harvesting work for a short time, the dispersion portion 4 is located at the non-acting position B2 from the terminal portion of the second transport device 18 (the terminal portion 3a of the transport unit 3). , Onions A can be placed in every corner of the collection container 42.

In this case, as described in the previous section (flow in the latter half of the harvesting work), apart from the state where the harvesting work is continued while advancing the machine body 10, the harvesting part 2 and the transporting part are in the state where the machine body 10 is stopped. 3 may be operated to charge the onion A remaining in the pick-up device 8, the first transfer device 17, and the second transfer device 18 into the collection container 42.

By operating the speed change lever 22 to the neutral position and operating the harvesting unit switch 43 and the transporting unit switch 54 to the operating position, the harvesting unit 2 (picking up device 8) and the transporting unit 3 (first transporting device 17 and second transporting device 17) are operated. The work of putting the onion A remaining in the device 18) into the collection container 42 can be performed.

In this case, the shift lever 22 is operated to the neutral position and the machine stop detection unit 62 is in the detection state, whereas the harvest unit switch 43 is operated to the operating position, so that the harvest stop detection unit 63 is not. Since the detection state is set, the rotation speed of the engine 20 is maintained at the set rotation speed M1 by the engine rotation operation unit 61 (the accelerator unit 44 is operated by the engine rotation operation unit 61, and the rotation speed of the engine 20 is delayed. It is automatically increased from the idling rotation speed to the set rotation speed M1 without any problem).

By operating the shift lever 22 to the neutral position, operating the harvesting section switch 43 to the stop position, and operating the transport section switch 54 to the operating position, the transport section 3 (first transport device 17 and second transport device 18) is operated. ), The onion A remaining in) can be put into the collection container 42.

In this case, the shift lever 22 is operated to the neutral position, the machine stop detection unit 62 is in the detection state, the harvest unit switch 43 is operated to the stop position, and the harvest stop detection unit 63 is in the detection state. The accelerator unit 44 is operated by the operation unit 61, and the rotation speed of the engine 20 is automatically lowered from the set rotation speed M1 to the idling rotation speed.

(Flow of replacement of collection container)
As described in the previous section (flow of completion of harvesting work), when the collection container 42 is full, the shift lever 22 is operated to the neutral position, and the harvesting section switch 43 and the transport section switch 54 are operated to the stop positions. , Suspend the harvesting work.

In this case, if the transport unit switch 54 is operated to the stop position while the harvest unit switch 43 is operated to the operating position, the harvest unit switch 43 is automatically operated to the stop position in conjunction with this. This is because it is not possible to assume a state in which the transport unit 3 (first transport device 17 and second transport device 18) is stopped while the harvest unit 2 (pick-up device 8 and scraping device 9) is operated.

As a result, the machine stop detection unit 62 is in the detection state and the harvest stop detection unit 63 is in the detection state. Therefore, the accelerator unit 44 is operated by the engine rotation operation unit 61, and the rotation speed of the engine 20 is changed from the set rotation speed M1. It is automatically lowered to the idling speed.

After this, the collection container 42 is replaced. First, as shown in FIG. 10, the speed change lever 22 is operated to the reverse side to the stop position, and the machine body 10 is slightly moved backward to stop, and the auxiliary worker puts the guide cover 34 and the frame 33 in an upright state. Manipulate.

Even if the harvesting unit switch 43 is operated to the stop position and the harvesting stop detecting unit 63 is in the detection state, when the speed change lever 22 is operated to the reverse side, the aircraft stop detecting unit 62 is in the non-detection state. The accelerator unit 44 is operated by the engine rotation operation unit 61, and the rotation speed of the engine 20 is automatically increased from the idling rotation speed to the set rotation speed M1 without delay.

Next, when the speed change lever 22 is operated to the neutral position and the machine body 10 is stopped, the machine body stop detection unit 62 is in the detection state in the detection state of the harvest stop detection unit 63, so that the engine rotation operation unit 61 causes the accelerator unit 44 to move. By being operated, the rotation speed of the engine 20 is automatically lowered from the set rotation speed M1 to the idling rotation speed.

As shown in FIG. 10, the front-rear length of the bottom portion 42b of the collection container 42 is set to be slightly longer than the front-rear length of the support arm 30, and the rear end portion of the bottom portion 42b of the recovery container 42 is the support arm 30. It protrudes to the rear side of the rear end.

When the release switch 50 is operated in the above-mentioned state, as shown in FIG. 11, the hydraulic cylinder 32 contracts and the support arm 30 is operated to the release position C2, and the collection container 42 is tilted backward. Then, the rear end portion of the bottom portion 42b of the collection container 42 touches the field G.

When the hydraulic cylinder 32 is contracted and operated, the hydraulic oil is only discharged from the hydraulic cylinder 32, and it is not necessary to supply the hydraulic oil to the hydraulic cylinder 32. Therefore, the accelerator unit 44 is operated by the engine rotation operation unit 61. However, the rotation speed of the engine 20 is maintained at the idling rotation speed.

In the state shown in FIG. 11, when the speed change lever 22 is operated to the forward side to advance the machine body 10, as shown in FIG. 12, due to the resistance due to the contact between the rear end portion of the bottom portion 42b of the collection container 42 and the field G. The support arm 30 is pulled out from the bottom 42b of the collection container 42 to the front side (the collection container 42 is pulled out from the support arm 30 to the rear side), and the full collection container 42 is the support frame 29 and the support. It is removed from the arm 30 and placed in the field G.

As shown in FIG. 12, when the full collection container 42 is removed from the support frame 29 and the support arm 30, the hydraulic cylinder 32 is automatically extended and the support arm 30 is operated to the support position C1 to be operated in FIG. It returns to the state shown in.

In this case, even if the harvesting unit switch 43 is operated to the stop position and the harvesting stop detecting unit 63 is in the detection state, when the speed change lever 22 is operated to the forward side, the aircraft stop detecting unit 62 is in the non-detection state. Therefore, the accelerator unit 44 is operated by the engine rotation operation unit 61, and the rotation speed of the engine 20 is automatically increased from the idling rotation speed to the set rotation speed M1 without delay.

As shown in FIG. 4, another work vehicle (not shown) is used to install an empty collection container 42 on the support frame 29 and the support arm 30 from the rear side, and to provide a full collection container 42 placed in the field G. The harvesting is performed, and the harvesting work is restarted from the state shown in FIG. 4 as described in the previous section (work flow at the start of the harvesting work (installation of the collecting container)).

(First Different Form of Implementation of the Invention)
When the accelerator unit 44 is operated by the engine rotation operation unit 61 and the rotation speed of the engine 20 is automatically lowered from the set rotation speed M1, it is not the idling rotation speed but a predetermined low that is slightly higher than the idling rotation speed. It may be configured to be lowered to the rotation speed.
In this case, the above-mentioned predetermined low rotation speed may be configured to be manually changed to a slightly higher rotation speed side or a slightly lower rotation speed side.

(Second alternative form of carrying out the invention)
In the recovery unit 5, the support arm 30 is slidably supported vertically on the lower end of the support frame 29, and the support arm 30 is lifted and lowered in parallel over the support position C1 and the detachment position C2 by the hydraulic cylinder 32. It may be configured to do so.

With this configuration, when the support arm 30 is operated to the detached position C2, the collection container 42 is lowered while maintaining the posture at the separation position E6 without being tilted backward, and the bottom of the collection container 42 is operated. The entire 42b is in contact with the field G.

After that, by advancing the machine body 10, the support arm 30 is attached to the bottom of the collection container 42 without changing the posture of the collection container 42 (without causing the onion A to spill due to the change in the posture of the collection container 42). It can be pulled out from the 42b to the front side (the collection container 42 can be pulled out from the support arm 30 to the rear side).

(Third alternative form of carrying out the invention)
Instead of providing the collection container 42, a container having a shape corresponding to the collection container 42 may be connected to the support frame 29 to form the collection unit 5.

With this configuration, when the collection unit 5 is full, the onion A is taken out from the collection unit 5 by operating the collection unit 5 in a sideways posture toward the rear side, and another carrier (shown in the figure). It may be configured to move to). Another conveyor-type transport device (not shown) that transfers the onion A of the collection unit 5 to another transport vehicle (not shown) may be provided.

(Fourth Different Embodiment of the Invention)
The intermediate positions E2 to E5 between the approach position E1 and the distance position E6 may be set more than the state shown in FIG. 3 or less than the state shown in FIG.

Abolishing the plurality of intermediate positions E2 to E5 between the approach position E1 and the distance position E6, the support frame 29 is gradually and continuously lowered from the approach position E1 toward the distance position E6. It may be configured.

(Fifth alternative form of carrying out the invention)
Instead of the box-shaped collection container 42, a flexible collection bag made of cloth or the like (not shown) may be used.

According to this configuration, the transport unit 3 (second transport device 18) may be configured to be lifted and lowered instead of raising and lowering the collection bag. The state in which the collection bag is crushed by lowering the transport unit 3 (second transport device 18) is the approach position E1 of the transport unit 3 (second transport device 18), and the transport unit 3 (second transport device 18) is in a state of being crushed. The state in which the collection bag is extended up and down by raising the 18) is the separation position E6 of the transport unit 3 (second transport device 18).

(Sixth Different Embodiment of the Invention)
The dispersion unit 4 may be abolished.
According to this structure, the crop sensor 37 is attached to the end portion of the second transport device 18 (the end portion 3a of the transport portion 3), and a little of the end portion of the second transport device 18 (the end portion 3a of the transport portion 3). It may be placed in the lower position.

(7th alternative embodiment of the invention)
In the state shown in FIG. 4, the alarm device (not shown) indicates that the support frame 29 has been raised to the approach position E1 and that the dispersion unit 4 has been moved to the action position B1 (alarm sound). It may be configured to be notified by.

In the state shown in FIG. 8, the alarm device may be configured to notify by voice (alarm sound) that the collection container 42 is full.

The present invention can be applied not only to a harvester for onion A but also to a harvester for harvesting crops such as potatoes, carrots and radishes in field G while traveling and storing them in the recovery unit 5 of the machine 10.
The present invention is not only a harvester that collects crops dug out from field G and placed in field G for several days, but also a harvesting unit 5 that digs out crops from field G and does not place the crops in field G. It can also be applied to harvesters that store in.

2 Harvesting part 3 Transporting part 3a Ending part
4 Dispersion part
5 Recovery unit 10 Aircraft 20 Engine 31 Hydraulic cylinder (elevating mechanism)
38 Setting operation unit 42a Top 42b Bottom 43 Harvesting unit switch 54 Transport unit switch 61 Engine rotation operation unit 62 Aircraft stop detection unit 63 Harvesting stop detection unit A Onion (crop)
E1 approach position E6 separation position G field M1 set rotation speed

Claims (3)

The harvesting department, the harvesting department, and the harvesting department, which harvest the crops in the field.
A transport section is provided for transporting the crops harvested by the harvest section and feeding the crops from the terminal section to the recovery section.
It is equipped with an aircraft stop detection unit that detects that the aircraft is in a stopped state, a harvest stop detection unit that detects that the harvesting unit is in a stopped state, and a setting operation unit that artificially sets the engine speed. Being
When the machine stop detection unit is in the detection state and the harvest stop detection unit is in the detection state, the engine rotation speed is lowered to a predetermined low rotation speed lower than the set rotation speed set by the setting operation unit. Equipped with an engine speed control unit
The recovery unit or the collection unit is located at an approaching position where the terminal portion of the transport unit and the collection unit are close to each other in the vertical direction, and a separation position where the terminal portion of the transport unit and the collection unit are separated from each other in the vertical direction. Equipped with an elevating mechanism to elevate and lower the transport unit
The engine rotation operation unit is
When the elevating mechanism is operated in a state where the rotation speed of the engine is lowered to the predetermined low rotation speed, the rotation speed of the engine is raised from the predetermined low rotation speed to the set rotation speed.
The collection unit is configured so that the crops that have fallen from the transport unit hit the dispersion unit and are dispersed and charged inside the collection unit by the dispersion unit.
The dispersion is movably supported between an action position where the crop is dispersed below the end of the transport section and a non-action position away from the action position, and the recovery section is It is configured to move to the action position when operated to the approach position.
A harvesting section switch that can be switched between an operating position for driving the harvesting section and a stop position for stopping the harvesting section is provided.
A transport unit switch that can be switched between an operating position for driving the transport unit and a stop position for stopping the transport unit is provided.
A harvester configured so that when the harvesting unit switch is operated to the operating position, the transport unit switch is operated to the operating position in conjunction with the operation. The engine rotation operation unit is
When at least one of the machine stop detection unit and the harvest stop detection unit is in the non-detection state while the engine rotation speed is lowered to the predetermined low rotation speed, the engine rotation speed is set to the predetermined engine speed. The harvester according to claim 1, wherein the harvester operates from a low rotation speed to the set rotation speed. The upper part of the collection part is opened,
The elevating mechanism
The approaching position where the recovery unit is lifted to a sideways posture so that the end portion of the transport unit enters the upper part of the collection unit.
The upper part of the recovery part is located below the terminal part of the transport part, and the bottom part of the recovery part is located below the upper part of the recovery part. The harvester according to claim 1 or 2 , wherein the harvesting unit is moved up and down.

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