JP7055057B2 - 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, if the end of the transport section and the bottom of the recovery bag are separated in the vertical direction, for example, when the collection bag is empty, the carrot is thrown in from the end of the transport section. At that time, depending on the size of the drop between the end of the transport section and the bottom of the collection bag, the carrot may collide with the bottom of the collection bag and be damaged.

As a result, in Patent Document 1, when the collection bag is empty, the end portion of the transport portion is lowered and the collection bag is crushed, so that the difference between the end portion of the transport portion and the bottom of the collection bag is small. (See FIG. 11 (a) of Patent Document 1).
As the harvesting progresses, the carrots are thrown into the collection bag, and the end of the transport section is raised together with the collection bag (see FIG. 11 (b) of Patent Document 1). ..

Japanese Unexamined Patent Publication No. 2016-136894

In Patent Document 1, a flexible collection bag is used as a crop collection unit. For such a collection bag, there is a harvester provided with a box-shaped collection unit made of metal or the like.
As such a recovery part, for example, there is a frame made of a metal frame, a plate material or a wire mesh is attached to the bottom or the side part of the frame, and the upper part where crops are put is opened. A larger capacity can be obtained as compared with the collection bag.

In the case of the box-shaped collection unit as described above, it is not possible to reduce the difference between the end portion of the transport unit and the bottom portion of the collection unit in a state where the collection unit is crushed as in Patent Document 1. There is room for improvement in terms of suppressing damage to the crop when it is thrown into the recovery section from the end of the transport section.

An object of the present invention is to suppress damage to a crop when the crop is thrown into the recovery section from the terminal end of the transport section in a harvester provided with a box-shaped recovery section having an open upper portion.

The harvester of the present invention
The harvesting department that harvests the crops in the field,
A box-shaped collection unit with an open top and
An elevating mechanism for elevating and lowering the collection unit,
A transport section that transports the crops harvested by the harvest section and throws the crops from the terminal section to the upper part of the recovery section.
A control device having an elevating operation unit for controlling the operation of the elevating mechanism is provided.
Based on the control command from the elevating operation unit, the elevating mechanism is located at an ascending position in which the collecting unit is lifted and placed in a sideways posture, and the bottom portion of the collecting unit is located below the upper part of the collecting unit. A state in which the recovery unit is moved up and down within a range of the descending position in which the posture is upright, and in the ascending position, the end portion of the transport unit is inserted into the upper part of the collection unit which is lifted and is in a sideways posture. In the descending position, the position and posture of the recovery unit can be changed so that the upper part of the collection unit in the standing posture is located below the end portion of the transport unit.
A crop sensor that detects the presence of crops near the end of the transport section, and
A position sensor that detects the position of the collection unit and
An elevating switch that can input an elevating command by artificial operation to the elevating operation unit,
An automatic descent switch capable of artificially intermittently giving a control command from the elevating operation unit to the elevating mechanism based on a detection signal in the crop sensor and the position sensor is provided.
The elevating switch has an ascending position that outputs an ascending command to the elevating mechanism, a descending position that outputs a descending command to the elevating mechanism, and a stop position that outputs a stop command to the elevating mechanism. It can be operated and is urged to the stop position.
The elevating operation unit is
With the automatic descent switch turned off, the collection is performed in a manual elevating state in which the position of the collection unit is set to an arbitrary height instructed based on an elevating command from the elevating switch, and in a state in which the automatic descent switch is on. It is configured to be able to select the automatic descent state that shifts the position of the part downward.
In the automatic descent state, each time the crop is detected by the crop sensor, the lower middle position is in order from the upper middle position among the plurality of intermediate positions set between the ascending position and the descending position. It is set to shift the position of the collection unit to the position.

According to the present invention, for example, when the recovery unit is empty, the collection unit may be raised to an ascending position. In the raised position, the recovery unit is in a sideways posture in which the upper part of the collection unit faces sideways, and the end 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 lowered to the lowering 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 in the raised 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 the descending 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 raised to the ascending position, and the harvesting operation may be resumed.

As described above, according to the present invention, in a harvester provided with a box-shaped 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. While avoiding spillage of crops, the recovery section can be filled without difficulty, and the working performance of the harvester can be improved.

Further, according to the present invention, when the crops that have been thrown into the collection unit from the end of the transport unit and piled up reach the vicinity of the end of the transport unit, the collection unit is automatically lowered by the elevating mechanism. The crop in the collection section is separated from the end of the transport section.
As a result, it is possible to avoid the accumulation of crops between the terminal portion of the transport section and the recovery section, and the crops can be put into the recovery section without interrupting the harvesting work, so that the harvester can be used. Work efficiency can be improved.

As described above, when the recovery unit is lowered from the ascending position to the descending position, it is necessary to lower the collecting unit according to the input condition of the crop (number and size of crops input, etc.). For example, the collection unit may be lowered stepwise by repeating the lowering operation and the stop of the collection unit, or the collection unit may be continuously lowered little by little.
According to the present invention, by providing a position sensor for detecting the position of the collection unit, the above-mentioned lowering operation of the collection unit can be performed accurately and reasonably based on the position of the collection unit.

In the present invention
The collection unit has a container support unit that supports a box-shaped collection container with an open top.
The elevating mechanism
The ascending position for lifting the collection container in a sideways posture so that the end portion of the transport unit enters the upper part of the collection container.
The upper part of the collection container is located below the end of the transport unit, and the bottom of the collection container is located below the upper part of the collection container. It is preferable to raise and lower the container support portion.

According to the present invention, the collection unit is provided with a container support portion that supports a box-shaped collection container with an open upper portion, and crops are charged into the collection container from the terminal portion of the transport unit. When the collection container is full, the harvesting operation may be interrupted, the full collection container may be removed from the container support, the empty collection container may be supported by the container support, and the harvesting operation may be resumed.

As a result, by preparing multiple collection containers, the time from when the collection unit (collection container) is full until the collection unit (collection container) is emptied and the harvesting work is resumed ( The interruption time of the harvesting work) can be shortened, and the work efficiency of the harvester can be improved.

In the present invention
The container support portion is provided at the rear portion of the machine body, and the container support portion is provided at the rear portion of the machine body.
The recovery container is supported by the container support portion so as to be able to be pulled out from the container support portion to the rear side.
It is preferable that a detachment operation mechanism for moving the container support portion is provided at the detachment position where the recovery container touches the field.

As described above, when the full collection container is removed from the container support after the collection container is full, according to the present invention, the container support portion on which the full collection container is supported is operated to the detached position. The recovery container is grounded in the field, and the container support portion can be pulled out from the recovery container by advancing the machine while the recovery container is supported by the field.

As a result, the full collection container can be quickly removed from the container support portion, the interruption time of the harvesting work can be shortened, and the work efficiency of the harvester can be improved.

It is a right side view of the harvester. It is a disassembled right side view which shows the vicinity of the recovery part of the rear part of an aircraft. It is a right side view which shows the state which the container support part and the recovery container are located in the raised position, and the dispersion part is located in the action position in the vicinity of the recovery part at the rear part of the machine body. It is a right side view which shows the state which the container support part and the recovery container are located in the descending position, and the dispersion part is located in the non-action position in the vicinity of the recovery part at the rear part of the machine body. It is a rear view which shows the container support part in the vicinity of the recovery part of the rear part of an aircraft. It is a rear view which shows the structure and the dispersion part which raises and lowers the container support part in the vicinity of the recovery part of the rear part of the machine body. It is a top view which shows the distributed part and the structure which moves and operates a distributed part. It is an exploded perspective view which looked at the dispersion part and the structure which moves the dispersion part from the diagonally lower side. It is a right side view which shows the support structure in the state which the guide cover is positioned in the 1st position. It is a right side view which shows the support structure in the state which the guide cover is positioned in the 2nd position. 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. It is a right side view which shows the work flow at the start 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 latter half 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. It is a top view which shows the structure which moves and operates the dispersion part and the dispersion part in 4th alternative embodiment of the invention.

1 to 21 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 21, 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 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.

(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. The end portion of the second transport device 18 (the end portion 3a of the transport portion 3) is behind the axis P8 (see (the structure for raising and lowering the container support portion) described later and FIGS. 2, 3 and 4) in a side view. It stands out.

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.

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.

(Frame structure at the rear of the aircraft)
As shown in FIGS. 2, 3, 4, and 6, right and left track frames 20 that support the right and left traveling devices 1 are provided, and the frame 21 is provided in the left-right direction over the rear portion of the track frame 20. Are concatenated.

The frame 22 is connected to the center of the left and right sides of the frame 21 and extends diagonally backward and upward, and the frame 23 is connected to the upper part of the frame 22 along the left-right direction. Right and left support frames 24 are connected to the right and left ends of the frame 23 and extend diagonally backward and upward.

The right and left frames 25 connected to the upper part of the front part of the machine body 10 extend to the rear side, and the frame 25 is connected to the upper part of the support frame 24. The right and left frames 26 connected to the lower part of the front part of the machine body 10 extend diagonally backward and upward, and the frame 26 is connected to the connecting portion between the support frame 24 and the frame 25.

The work deck 7 is supported by the frame 25, and the frame 27 is connected to the work deck 7 and the support frame 24.
The frames 28 and 29 are connected to the rear portion and the front-rear intermediate portion of the frame 25 in the left-right direction, and the support member 30 obtained by bending the flat plate into a channel shape in a plan view is connected to the frame 29. A support shaft 31 is connected over the upper part of the support frame 24.

(Structure of distributed part)
As shown in FIGS. 2, 3, 4, and 6, a dispersion portion 4 is provided below the end portion (termination portion 3a of the transport portion 3) of the second transport device 18. The dispersion unit 4 has an action position B1 (see FIG. 3) below the end portion of the second transfer device 18 (the end portion 3a of the transfer unit 3) and a non-action position B2 (FIG. 4) away from the action position B1. It is moved over (see).

As shown in FIG. 3, the dispersion unit 4 disperses the onion A emitted from the terminal portion (terminal portion 3a of the transport unit 3) of the second transport device 18 at the action position B1, and the onion A collects the onion unit 5. Make sure that it is evenly applied to each part of.

As shown in FIGS. 6, 7, and 8, the dispersion portion 4 includes a flat plate portion 32, a guide portion 33, frames 34, 35 connected to the lower surface portion of the flat plate portion 32, and a flat plate portion 36. 32 is formed by bending a flat plate, and includes a central portion 32a, right and left lateral portions 32b, and a rear side portion 32c.

As shown in FIG. 3, with the dispersion portion 4 located at the action position B1, the central portion 32a of the flat plate portion 32 faces diagonally backward and downward, and the right and left lateral portions 32b of the flat plate portion 32 face diagonally downward and downward. The plate portion 32 faces diagonally downward to the left, and the rear side portion 32c of the flat plate portion 32 faces diagonally forward and downward.

As shown in FIG. 7, the guide portion 33 is formed in an elongated shape by a rubber material having a semicircular cross section, and is attached to the upper surface of the central portion 32a of the flat plate portion 32 and the right and left lateral portions 32b. Therefore, they are arranged diagonally in a rearward spread with respect to the front-back direction.

The frame 34 is formed by bending a plate material into a channel shape in a plan view, and is connected to the front portion of the lower surface of the flat plate portion 32. A frame 35 made of an elongated plate material is connected to the vicinity of the center of the front and rear surfaces of the lower surface of the flat plate portion 32 along the left-right direction. The flat plate-shaped right and left connecting portions 36 are connected to the rear portion of the lower surface of the flat plate portion 32 along the front-rear direction.

Brackets 34a are connected to the right and left parts of the frame 34, and right and left crop sensors 37 are attached to the right and left brackets 34a of the frame 34. The crop sensor 37 is provided with an arm-shaped contact portion 37a, the crop sensor 37 is located below the flat plate portion 32, and the contact portion 37a protrudes rearward from the flat plate portion 32. As shown in FIG. 3, in a state where the dispersion portion 4 is located at the action position B1, the contact portion 37a of the crop sensor 37 is in a state of being extended diagonally backward and downward in a side view.

(Support structure and movement operation structure of the dispersion part)
As shown in FIGS. 2, 6, 7, and 8, a connecting portion 38 formed by bending a plate material into a box shape is provided, and a support shaft 38a is connected to the front portion of the connecting portion 38 along the left-right direction. The right and left arms 38b are connected to the right and left ends of the support shaft 38a and extend to the front side. Two sets of connecting holes 38c and 38d are opened in the connecting portion 38, and the connecting portion 36 of the dispersion portion 4 is bolted to the connecting hole 38c of the connecting portion 38.

The right and left operation arms 39 are swingably supported around the axis P2 in the left-right direction of the bracket 29a connected to the frame 29, and the upper end portion of the operation arm 39 is the arm 38b of the connection portion 38. It is swingably connected to the front end portion around the axis P3 in the left-right direction. A removable hydraulic cylinder 40 is connected to the bracket 28a connected to the frame 28 and the lower portion 39a of the operation arm 39.

The right and left operation arms 41 are swingably supported around the axis P4 in the left-right direction of the support member 30, and the upper end portion of the operation arm 41 is laterally supported by the support shaft 38a of the connecting portion 38. It is swingably connected around the shaft core P5.

The states shown in FIGS. 3 and 8 are states in which the hydraulic cylinder 40 is contracted and the operating arms 39 and 41 are oscillated rearward, and the dispersion portion 4 is the terminal portion (conveyance) of the second transport device 18. It is in a state of being located at the lower working position B1 of the terminal portion 3a) of the portion 3.

At the working position B1, the rear end portion (crop sensor 37) of the dispersion portion 4 is the terminal portion of the second transport device 18 (termination portion 3a of the transport portion 3) and the shaft core P8 (described later) in plan view and side view. (Refer to (Elevation operation structure of container support)) It protrudes to the rear side. The dispersion portion 4 and the connecting portion 38 partially overlap with the terminal portion of the second transport device 18 (the terminal portion 3a of the transport unit 3) in a plan view.

In the state shown in FIGS. 3 and 8, the dispersion portion 4 and the connecting portion 38 are supported by the upper ends of the operation arms 39 and 41 at two points in the front and rear in a side view, and the dispersion portion 4 operates. It is fixed at position B1. When the connecting portion 36 of the dispersion portion 4 is bolted to the connecting hole 38d of the connecting portion 38, the position of the dispersion portion 4 at the action position B1 can be set slightly behind the position shown in FIG. can.

When the hydraulic cylinder 40 is extended and operated from the state shown in FIG. 3, the operation arms 39 and 41 are oscillated forward as shown in FIGS. 2 and 4, and the dispersion portion 4 and the connecting portion 38 are oscillated. It moves forward along the lower side of the second transport device 18 (transport unit 3) and is moved to the non-acting position B2.

The non-acting position B2 is separated from the terminal portion of the second transport device 18 (termination portion 3a of the transport unit 3) to the center side of the second transport device 18 (center side of the transport unit 3), and is the second transport device. It is a position on the lower side of 18 (conveyor unit 3). At the non-acting position B2, the dispersion portion 4 and the connecting portion 38 overlap with the second transport device 18 (conveyor portion 3) in a plan view.
At the non-acting position B2, the rear end portion (crop sensor 37) of the dispersion portion 4 is located directly above the axis P8 (see (the structure for raising and lowering the container support portion) described later) in both plan and side views. ..

(Structure of container support portion in collection section) As shown in FIGS. 2, 4 and 5, the recovery section 5 is a container that supports a box-shaped recovery container 42 (see FIGS. 3 and 12) in which the upper portion 42a is open. A support portion 43 is provided.

The right and left frames 44 are provided, the frames 45 and 46 are connected over the upper and lower middle portions of the frame 44, and the round pipe-shaped support frame 48 is connected over the upper part of the frame 44 to form a frame. The body is formed.

A frame 49 is provided along the left-right direction, a bracket 49a is connected to the left-right center portion of the frame 49, and a round pipe-shaped support frame 50 is connected to the bracket 49a. The support frame 50 and the frame 49 are swingably supported around the axis P6 in the left-right direction at the lower end of the frame 44, and extend over the bracket 45a connected to the frame 45 and the bracket 49a of the frame 49. , A single-acting hydraulic cylinder 51 (corresponding to a detachment operation mechanism) is connected.

Fork-shaped right and left support arms 52 are connected to the left and right center side portions of the frame 49 and extend to the rear side. Right and left support arms 53 having an L-shaped cross section (angle material) are connected to the right and left ends of the frame 49 and extend to the rear side.

L-shaped (angle material-like) right and left holding arms 54 are connected to the frame 44 in a plan view. The support frame 55 is connected in the left-right direction over the upper end portion of the frame 44, and the rubber plate cover 56 is connected to the support frame 55.

By expanding and contracting the hydraulic cylinder 51, the support frame 50 and the frame 49 can be swung around the axis P6 of the frame 44, and the support arms 52 and 53 (container support portion 43) are supported at the support position C1. (See FIG. 11) and the detachment position C2 (see FIG. 11) can be moved.

(Composition of collection container)
As shown in FIGS. 3 and 12, 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 container support portion 43 (support arms 52, 53) from the rear side, and can be pulled out from the container support portion 43 (support arms 52, 53) to the rear side. With the collection container 42 installed in the container support portions 43 (support arms 52, 53), the onion A is charged from the upper portion 42a of the collection container 42, as will be described later.

(Structure of guide cover provided on container support)
As shown in FIGS. 2, 5, 9 and 10, a round pipe-shaped support frame 57 is connected to the upper end of the frame 44 and extends laterally to the right and left, and is to the right of the support frame 57. And the right and left guide plates 58 are connected to the left outer end.

A frontal arched (channel) frame 59 is provided, the right support member 60 is connected to the right lateral portion 59b of the frame 59, and the left support to the left lateral portion 59b of the frame 59. The members 60 are connected.

A guide cover 61 is attached to the upper portion 59a of the frame 59 and the right and left lateral portions 59b, and an opening 62 is formed between the guide covers 61. The guide cover 61 is in the form of a flexible sheet, such as a synthetic fiber cloth or a synthetic resin vinyl sheet.

The support member 60 is swingably supported around the axis P7 in the left-right direction at the end of the support frame 57. In the guide cover 61 and the frame 59, the support member 60 hits the stopper portion 58a of the guide plate 58 and stops at the first position D1 (see FIG. 9), and the lower portion 60a of the support member 60 hits the stopper portion 58a of the guide plate 58 and stops. It is swingable over the position D2 (see FIG. 10), and the toggle spring 63 is connected to the pin 70b of the support member 60 and the pin 58b of the guide plate 58.

As shown in FIGS. 2 and 9, at the first position D1, the guide cover 61 and the frame 59 are in a state of being substantially aligned with the frame 44 of the container support portion 43 in a side view.
As shown in FIGS. 3 and 10, at the second position D2, the guide cover 61 and the frame 59 are in a state of being substantially parallel to the support arms 52 and 53 of the container support portion 43 in the side view.

(Elevation operation structure of container support)
As shown in FIGS. 2, 4, 5, and 6, the support shaft 31 of the machine body 10 is inserted into the support frame 48 of the container support portion 43, and around the axis P8 in the left-right direction of the support shaft 31 of the machine body 10. The container support portion 43 is supported so as to be swingable up and down.

The right and left brackets 44a are connected to the frames 44 and 45 of the container support portion 43, and the right and left brackets 23a are connected to the frame 23 of the machine body 10. A single-acting right and left hydraulic cylinder 64 (corresponding to an elevating mechanism) is connected to the bracket 44a of the container support portion 43 and the bracket 23a of the machine body 10.
As shown in FIG. 3, by expanding and contracting the hydraulic cylinder 64, the container support portion 43 can be moved up and down over the ascending position E1 and the descending position E6.

As shown in FIG. 11, the position sensor 65 is attached to the connecting portion between the left support frame 24 and the frame 25 of the machine body 10. The position sensor 65 is of the potentiometer type and is provided with a detection arm 65a that can swing in the front-rear direction.

The pin 44b is laterally connected to the frame 44 of the container support portion 43, and the linking link 66 is connected to the detection arm 65a of the position sensor 65 and the pin 44b of the container support portion 43.

As the container support portion 43 is moved up and down, the detection arm 65a of the position sensor 65 is swung via the linkage link 66, and the position sensor is operated between the ascending position E1 and the descending position E6. The position of the container support portion 43 is detected by 65.

(Structure of control system for raising and lowering the container support)
As shown in FIG. 11, the control device 67 is provided in the machine body 10, the detection signal of the crop sensor 37 is input to the control device 67, and the detection value of the position sensor 65 is input to the control device 67.

The hydraulic cylinders 40, 51, 64 are provided with electromagnetically operated control valves 72, 73, 74 that supply and discharge hydraulic oil to expand and contract the hydraulic cylinders 40, 51, 64.
The movement operation unit 75 that operates the control valve 72, the release operation unit 76 that operates the control valve 73, the elevating operation unit 77 (corresponding to the operation unit) that operates the control valve 74, and the fullness detection unit 78 are software as control devices. It is prepared for 67.

A manual lever type elevating switch 68 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 68 is input to the control device 67.
The elevating switch 68 is freely operable in the stop position, the ascending position, and the descending position, and is urged to the stop position. When the elevating switch 68 is operated in the ascending position (descending position), the control valve 74 is operated by the elevating operation unit 77. Then, the hydraulic cylinder 64 expands and contracts.

The withdrawal switch 69 and the automatic descent switch 79 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 69 and the automatic descent switch 79 are input to the control device 67. 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 68, the detachment switch 69, and the automatic descent switch 79. An alarm buzzer 70 is provided in both the operation unit 6 and the work deck 7, and an alarm lamp 71 is provided in the meter panel (not shown) of the operation unit 6.

Based on the operation signals of the lift switch 68, the detachment switch 69 and the automatic descent switch 79, and the detection signals of the crop sensor 37 and the position sensor 65, the following (work flow at the start of harvesting work) to (replacement work of the collection container) The control valves 72, 73, 74 are operated by the movement operation unit 75, the detachment operation unit 76, the elevating operation unit 77, and the full detection unit 78 of the control device 67, and the hydraulic cylinder 40, 51 and 64 are expanded and contracted.

(Work flow at the start of harvesting work)
As shown in FIG. 12, in the stopped state of the machine body 10, the container support portion 43 is located at the descending position E6, the support arms 52 and 53 (container support portion 43) are located at the support position C1, and the dispersion portion 4 is not. With the guide cover 61 and the frame 59 located at the working position B2 and the guide cover 61 and the frame 59 at the first position D1, another work vehicle (not shown) is used to transfer the empty collection container 42 to the container support portion 43 (support arm 52, support arm 52,). Install from the rear side in 53).

The end portion of the second transport device 18 (the end portion 3a of the transport portion 3) protrudes rearward from the axis P8 in a side view and enters the opening 62 (see FIG. 5) of the guide cover 61. It is located above the upper portion 42a of the collection container 42.

In the state shown in FIG. 12, the elevating switch 68 is operated to the ascending position, and as shown in FIG. 13, the hydraulic cylinder 64 is extended and operated to ascend the container support portion 43. 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 62 (see FIG. 5) of the guide cover 61 to the action position B1.

When the container support portion 43 reaches the ascending position E1, the elevating switch 68 is operated to the stop position to stop the hydraulic cylinder 64. When the dispersion portion 4 reaches the action position B1, the hydraulic cylinder 40 automatically stops.

As shown in FIG. 13, when the container support portion 43 is lifted from the descending position E6, the guide cover 61 and the frame 59 tend to fall forward, but the guide cover 61 and the frame 59 tend to fall. By hitting the frame 19, the guide cover 61 and the frame 59 are operated from the first position D1 (see FIG. 9) to the second position D2 (see FIG. 10).

As shown in FIG. 13, in a state where the container support portion 43 is located at the ascending 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). The terminal portion (terminal portion 3a of the transport unit 3) and the dispersion unit 4 of the transfer device 18 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 described in the previous section (work flow at the start of the harvesting work), the harvesting work is started in a state where the container support portion 43 is located at the ascending position E1. In this case, the automatic descent switch 79 is operated to the ON position.

As shown in FIGS. 3 and 14, in a state where the container support portion 43 is located at the ascending position E1, under the terminal portion (terminal portion 3a of the transport portion 3) and the dispersion portion 4 of the second transport device 18. The side portion 42c is located instead of the bottom portion 42b of the collection container 42, and the terminal portion (termination 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 are located. The head is small.

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, and the second transport is performed. Due to the small head between the terminal portion of the device 18 (termination portion 3a of the transport unit 3) and the dispersion portion 4 and the lateral portion 42c of the collection container 42, the onion A is the terminal portion (conveyor unit) of the second transport device 18. Damage to the onion A when it is put into the collection container 42 from the terminal portion 3a) of 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 37a of the crop sensor 37 from the lower side, and the state in which the contact portion 37a of the crop sensor 37 is pushed up from the lower side is set for a set time (for example, several seconds). If maintained over, the crop sensor 37 will be in a state of detecting onion A.

When the onion A stacked in the collection container 42 is detected by the crop sensor 37 of at least one of the right and left crop sensors 37, the vicinity of the terminal portion of the second transport device 18 (the terminal portion 3a of the transport unit 3). It is determined that the onion A is present (in the vicinity of the dispersion portion 4).

When the onion A is put into the collection container 42 while being dispersed by the dispersion portion 4, the onion A tends to gather on the rear side of the dispersion portion 4 and the right and left lateral sides of the dispersion portion 4 in a plan view, and the onion A is easily collected on the right and left side surfaces of the dispersion portion 4. The onion A is in a state where it is difficult to gather in the portion directly below (the portion overlapping the dispersion portion 4 in a plan view).

In the dispersion portion 4, the contact portion 37a of the crop sensor 37 is in a state where the contact portion 37a of the crop sensor 37 protrudes rearward from the dispersion portion 4 (flat plate portion 32) and the dispersion portion 4 is located at the action position B1. The onions A stacked in the collection container 42 are appropriately detected by the contact portion 37a of the crop sensor 37 because the onions A are extended diagonally backward and downward in the side view.

When the onion A is put into the collection container 42 while being dispersed by the dispersion portion 4, the onion A may come into contact with the contact portion 37a of the crop sensor 37.
In this case, when the onion A contacts the contact portion 37a of the crop sensor 37 from above, the contact portion 37a of the crop sensor 37 is pushed down, and the time for the onion A to contact the contact portion 37a of the crop sensor 37 is short. As a result, the contact portion 37a of the crop sensor 37 is not held in the depressed state.

As a result, when the onion A is put into the collection container 42 while being dispersed by the dispersion portion 4, even if the onion A comes into contact with the contact portion 37a of the crop sensor 37, the onion A is detected by the crop sensor 37. Therefore, it is not determined that the onion A is present in the vicinity of the terminal portion of the second transport device 18 (the terminal portion 3a of the transport portion 3) (near the dispersion portion 4).

As shown in FIGS. 3, 11, 14, and 15, when the automatic descent switch 79 is operated to the ON position, a plurality of intermediate positions E2, E3, E4 between the ascending position E1 and the descending position E6. E5 is set.

When the onion A stacked in the collection container 42 is detected by the crop sensor 37, as shown in FIG. 15, the hydraulic cylinder 64 contracts and the container support portion 43 is lowered from the ascending position E1 to support the container. When the unit 43 reaches the intermediate position E2, the hydraulic cylinder 64 stops based on the detected value of the position sensor 65.
When the container support portion 43 is lowered to the intermediate position E2, the onions A stacked in the collection container 42 are separated from the crop sensor 37 downward.

When the onion A piled up in the collection container 42 is detected by the crop sensor 37 in the state where the container support portion 43 is located at the intermediate position E2 as the harvesting work progresses, the hydraulic cylinder 64 contracts and operates. When the container support portion 43 is lowered from the intermediate position E2 and the container support portion 43 reaches the intermediate position E3, the hydraulic cylinder 64 is stopped based on the detected value of the position sensor 65.
When the container support portion 43 is lowered to the intermediate position E3, the onions A stacked in the collection container 42 are separated from the crop sensor 37 downward.

(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 container support portion 43 has the ascending 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. , The intermediate position E4 to the intermediate position E5, and the intermediate position E5 to the descending position E6 are automatically descended step by step.

When the automatic descent switch 79 is operated to the ON position, the container support portion 43 is automatically lowered as described above, and when the automatic descent switch 79 is operated to the OFF position, the above-mentioned is performed. Such an automatic lowering operation of the container support portion 43 is not performed.

When the automatic descent switch 79 is operated to the OFF position, the driver or the auxiliary operator operates the elevating switch 68 to the descent position and the stop position, so that the container support portion 43 is operated from the ascending position E1 to the descending position E6. Can be lowered to any position and stopped.

As shown in FIGS. 14, 15 and 16, the container support portion 43 is lowered from the ascending position E1 to the descending position E6 through the intermediate positions E2 to E5, whereby the terminal portion (conveying) of the second transport device 18 is operated. The terminal portion 3a) of the portion 3 and the dispersion portion 4 are 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 ascending 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 61 and the frame 59 at the second position D2 are lowered together with the container support portion 43, and the guide cover 61 is located around the upper portion 42a of the collection container 42. As a result, the guide cover 61 prevents the onion A from spilling from the upper portion 42a of the collection container 42.

As shown in FIG. 16, in a state where the container support portion 43 is located at the descending position E6, the collection container 42 is located below 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 of the collection container 42 is located and the bottom portion 42b of the collection container 42 is located below the upper portion 42a of the collection container 42.

In a state where the container support portion 43 is located at the lowering position E6, the dispersion portion 4 (connecting portion 38) is located below the front end portion of the upper portion 42a of the collection container 42, and the operating arms 39 and 41 are located on the upper portion of the collection container 42. It is located on the front side of the front end portion of the 42a, and the operation arms 39 and 41 and the front end portion of the upper portion 42a of the collection container 42 do not come into contact with each other.

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.

When the onion A stacked in the collection container 42 is detected by the crop sensor 37 in a state where the position sensor 65 detects that the container support portion 43 is located at the descending position E6, the fullness detection unit 78 detects the collection container 42. Is determined to be sufficiently full, the alarm buzzer 70 is activated, and the alarm lamp 71 is turned on.

When a predetermined time (for example, several seconds) has elapsed after the alarm buzzer 70 is activated and the alarm lamp 71 is turned on, the alarm buzzer 70 is stopped and the alarm lamp 71 is turned off.
When the alarm buzzer 70 is stopped and the alarm lamp 71 is turned off, the hydraulic cylinder 40 is extended and the dispersion portion 4 is extended from the action position B1 to the opening 62 of the guide cover 61 (FIG. 4). It is automatically moved to the non-acting position B2 through 5).

After the states shown in FIGS. 4 and 17, the harvesting operation is continued for a short time, so that the dispersion portion 4 is located at the non-acting position B2, and the termination portion of the second transport device 18 (the termination portion of the transport portion 3). From 3a), the onion A can be put into every corner of the collection container 42. After this, the harvesting work is interrupted.

(Flow of replacement of collection container)
As described in the previous section (flow in the latter half of the harvesting work), when the collection container 42 becomes full and the machine 10 is stopped to interrupt the harvesting work, as shown in FIG. 18, the machine 10 is slightly moved backward and stopped. The auxiliary worker operates the guide cover 61 and the frame 59 at the first position D1 (see FIG. 9).

As shown in FIG. 18, 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 arms 52 and 53, and the rear end portion of the bottom portion 42b of the recovery container 42 is the support arm. It protrudes to the rear side of the rear ends of 52 and 53.

When the release switch 69 is operated in the above-mentioned state, the hydraulic cylinder 51 contracts and the support arms 52 and 53 (container support portion 43) are operated to the release position C2 as shown in FIG. As a result, the collection container 42 is tilted backward, and the rear end portion of the bottom portion 42b of the collection container 42 comes into contact with the field G.

When the machine body 10 is advanced in the state shown in FIG. 19, as shown in FIG. 20, the support arms 52 and 53 (container support portion 43) due to the resistance due to the ground contact between the rear end portion of the bottom portion 42b of the recovery container 42 and the field G. ) Is pulled out from the bottom 42b of the collection container 42 to the front side (the collection container 42 is pulled out to the rear side from the support arms 52 and 53 (container support portion 43)), and the full collection container 42 is filled. It is removed from the container support portion 43 and placed in the field G.

As shown in FIG. 20, when the full collection container 42 is removed from the container support portion 43, the hydraulic cylinder 51 automatically expands and the support arms 52 and 53 (container support portion 43) are operated to the support position C1. Then, it returns to the state shown in FIG.

As shown in FIG. 12, another work vehicle (not shown) is used to install an empty recovery container 42 on the container support portion 43 (support arms 52, 53) from the rear side, and the full field G is placed. The collection container 42 is collected, and the harvesting work is restarted from the state shown in FIG. 12 as described in the previous section (work flow at the start of the harvesting work).

(First Different Form of Implementation of the Invention)
In the container support portion 43, the support frame 50 and the frame 49 are slidably supported vertically on the lower end of the frame 44, and the support frame 50 and the frame 49 and the support arms 52 and 53 are supported at the support position C1 by the hydraulic cylinder 51. And may be configured to move up and down in parallel over the detachment position C2.

With this configuration, when the support arms 52 and 53 (container support portion 43) are operated to the detached position C2, the recovery container 42 is operated to descend without becoming a backward tilted posture while maintaining the posture at the descending position E6. Then, the entire bottom portion 42b of the recovery container 42 touches the field G.

After that, by advancing the machine body 10, the support arms 52 and 53 (container support portion) without changing the posture of the recovery container 42 (without causing the onion A to spill due to the change in the posture of the recovery container 42). 43) can be pulled out from the bottom 42b of the recovery container 42 to the front side (the recovery container 42 can be pulled out to the rear side from the support arms 52 and 53 (container support portion 43)).

(Second 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 container support unit 43 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.

(Third alternative form of carrying out the invention)
The intermediate positions E2 to E5 between the ascending position E1 and the descending position E6 may be set more than the states shown in FIGS. 3 and 11, or may be set less than the states shown in FIGS. 3 and 11. good.

The plurality of intermediate positions E2 to E5 between the ascending position E1 and the descending position E6 are abolished, and the container support portion 43 (collecting portion 5) is gradually continuously moved from the ascending position E1 to the descending position E6. It may be configured to perform a descending operation.

(Fourth Different Embodiment of the Invention)
In the dispersion portion 4, the guide portion 33 made of the rubber material shown in FIG. 7 is abolished, and as shown in FIG. 21, the guide portion 33 in which the outer surface of the metal round pipe is covered with the rubber material is provided to the right of the flat plate portion 32. And may be attached to the upper surface of the left lateral side portion 32b at an angle in a rearward spread with respect to the front-rear direction.

(Fifth alternative form of carrying out 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.

(Sixth Different Embodiment of the Invention)
In the state shown in FIG. 13, the fact that the container support portion 43 has been raised to the ascending position E1 and that the distributed portion 4 has been moved to the acting position B1 is voiced (alarm sound) by an alarm device (not shown). ) May be notified.

In the state shown in FIG. 16, 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 the 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 5 Recovery part 10 Aircraft 37 Crop sensor 42 Recovery container 42a Top 42b Bottom 43 Container support 51 Hydraulic cylinder (detachment operation mechanism)
64 Hydraulic cylinder (elevating mechanism)
65 Position sensor 77 Lifting operation unit (operation unit)
A onion (crop)
C2 withdrawal position E1 ascending position E6 descending position G field

Claims (3)

The harvesting department that harvests the crops in the field,
A box-shaped collection unit with an open top and
An elevating mechanism for elevating and lowering the collection unit,
A transport section that transports the crops harvested by the harvest section and puts the crops from the terminal section to the upper part of the recovery section.
A control device having an elevating operation unit for controlling the operation of the elevating mechanism is provided.
Based on the control command from the elevating operation unit, the elevating mechanism is located at an ascending position in which the collecting unit is lifted and placed in a sideways posture, and the bottom portion of the collecting unit is located below the upper part of the collecting unit. A state in which the recovery unit is moved up and down within a range of the descending position in which the posture is upright, and in the ascending position, the end portion of the transport unit is inserted into the upper part of the collection unit in the lifted and sideways posture. In the descending position, the position and posture of the recovery unit can be changed so that the upper part of the collection unit in the upright posture is located below the end portion of the transport unit.
A crop sensor that detects the presence of crops near the end of the transport section, and
A position sensor that detects the position of the collection unit and
An elevating switch that can input an elevating command by artificial operation to the elevating operation unit,
An automatic descent switch capable of artificially intermittently giving a control command from the elevating operation unit to the elevating mechanism based on a detection signal in the crop sensor and the position sensor is provided.
The elevating switch has an ascending position that outputs an ascending command to the elevating mechanism, a descending position that outputs a descending command to the elevating mechanism, and a stop position that outputs a stop command to the elevating mechanism. It can be operated and is urged to the stop position.
The elevating operation unit is
In the state where the automatic descent switch is turned off, the collection is performed in a manual elevating state in which the position of the collection unit is set to an arbitrary height instructed based on an elevating command from the elevating switch, and in a state where the automatic descent switch is on. It is configured to be able to select the automatic descent state that shifts the position of the part downward.
In the automatic descent state, each time the crop is detected by the crop sensor, the lower middle position is in order from the upper middle position among the plurality of intermediate positions set between the ascending position and the descending position. A harvester set to shift the position of the collection unit to the position. The collection unit has a container support unit that supports a box-shaped collection container with an open top.
The elevating mechanism
The ascending position for lifting the collection container in a sideways posture so that the end portion of the transport unit enters the upper part of the collection container.
The upper part of the collection container is located below the end of the transport unit, and the bottom of the collection container is located below the upper part of the collection container. The harvester according to claim 1, wherein the container support portion is moved up and down. The container support portion is provided at the rear portion of the machine body, and the container support portion is provided at the rear portion of the machine body.
The recovery container is supported by the container support portion so as to be able to be pulled out from the container support portion to the rear side.
The harvester according to claim 2, further comprising a detachment operation mechanism for moving the container support portion to a detachment position where the recovery container touches the field.

Images