CN108684336B

CN108684336B - Harvester

Info

Publication number: CN108684336B
Application number: CN201810294424.1A
Authority: CN
Inventors: 石田翔己
Original assignee: Kubota Corp
Current assignee: Kubota Corp
Priority date: 2017-03-31
Filing date: 2018-03-30
Publication date: 2021-07-09
Anticipated expiration: 2038-03-30
Also published as: CN108684336A

Abstract

The technical problem of the present invention is to properly operate each discharge mechanism in a harvester having two types of discharge mechanisms for discharging the threshed material. The harvester of the invention comprises: a first discharge port for discharging the threshed material when the threshed material box is in the ascending posture; a threshing material discharge device having a vertical conveying section, a horizontal conveying section connected to an upper end of the vertical conveying section, and a second discharge port provided in the horizontal conveying section; a rotating mechanism which enables the threshing material discharging device to rotate around a longitudinal axis between a storage posture that the horizontal conveying part is positioned above the threshing material box and a discharging posture that the horizontal conveying part extends out of the machine body; a discharge mode selection unit that selects a first discharge mode in which the particulate matter is discharged from the first discharge port and a second discharge mode in which the particulate matter is discharged from the second discharge port; and a particulate matter discharge control unit that rotates the particulate matter discharge device to the discharge posture in response to the particulate matter discharge preparation command when the first discharge mode is selected by the discharge mode selection unit.

Description

Harvester

Technical Field

The invention relates to a harvester.

Background

(1)

Some of the harvesters include a threshing device for threshing the harvested material harvested by the harvesting unit and a threshing box for storing the threshed material obtained by the threshing device.

Various types of discharge mechanisms for discharging the threshed material from the screen box are known. A harvester employing one type of discharge mechanism is known from patent document 1. The harvester of patent document 1 includes a threshed material carrying-out device having a vertical carrying-out section and a horizontal carrying-out section. The vertical carrying-out part is arranged in a state that the traveling vehicle body faces up and down. The lower end of the vertical carrying-out section is connected to the threshing box. The horizontal carrying-out part is arranged in a state of extending from the upper end part of the vertical carrying-out part. When the particulate matter is discharged by the particulate matter carrying-out device, the lateral carrying-out section is rotationally moved from a storage position located inside the traveling vehicle body to a carrying-out position protruding outside the traveling vehicle body. The particulate matter is carried out from the particulate matter box to the horizontal carrying-out section via the vertical carrying-out section, and discharged from the discharge port.

The threshing box is swingable up and down about the body toward the axis in the front-rear direction in order to collect the stored threshed material to the lower end side of the vertical carrying-out section.

A harvester using another type of discharge mechanism is known from patent document 2. The harvester is provided with: a threshing box having a side wall formed with a threshing outlet; a swing mechanism for swinging the threshing box around the front and rear shaft cores of the machine body; and a shielding member for shielding the threshing material outlet in a descending storage posture of the threshing box and opening the threshing material outlet in an ascending discharge posture of the threshing box. When the threshing box swings to the ascending discharge posture, the threshed material in the threshing box is discharged from the threshed material discharge port.

Further, a harvester provided with the two types of discharge mechanisms is known from patent document 3. In a harvester equipped with two different types of discharge mechanisms, since the discharge mechanism is complicated, there is a possibility that a member of one discharge mechanism interferes with a member of the other discharge mechanism in each discharge operation.

(2)

Some of the harvesters include a threshing box vertically swingable between a lowered posture and a raised posture, and a threshing material discharging device rotatable between a storage posture and a discharging posture.

In a combine harvester as an example of a harvester, in general, a threshing box is provided to be larger up to a vicinity of a vehicle body end in a plan view in order to provide the threshing box larger. The threshing material discharging device is configured to assume a posture close to the threshing material box in the storage posture so that the threshing material discharging device in the storage posture is not exposed from the vehicle body. The device for discharging the particulate matter can be rotated from a storage posture to a posture of extending outside the vehicle body so that the particulate matter can be discharged at a position distant from the vehicle body. However, when the particulate matter is discharged in a posture too close to the vehicle body, the dust discharged along with the particulate matter adversely affects equipment such as a radiator fan and an engine fan provided at the end of the vehicle body.

For example, in the combine harvester of patent document 1, when the box lever is operated from the storage position to the discharge position, the threshed material box swings from the storage (descending) posture to the discharge (ascending) posture. At this time, if the particulate matter discharging device is in the storage posture, interference between the particulate matter discharging device and the particulate matter discharging device occurs, and therefore, the rotation of the particulate matter discharging device to the discharging posture is automatically performed first, and then the swinging of the particulate matter discharging device to the discharging posture is performed. Further, when the bin lever is operated from the discharge position to the storage position, the threshing bin swings from the discharge (ascending) posture to the storage (descending) posture. At this time, if the particulate matter discharging device is in the discharging posture, the rotational movement of the particulate matter discharging device to the storing posture is also automatically performed after the swinging movement of the particulate matter box to the storing posture. That is, interlocking control is established between the attitude control of the particulate matter tank and the attitude control of the particulate matter discharging device.

However, in the combine harvester of patent document 1, no interlock control is established between the control of both the thresher tank and the thresher discharge device and the discharge control of discharging the threshed matter sent out from the thresher tank from the tip end of the thresher discharge device to the loading platform of the thresher transport vehicle or the like. Therefore, since the discharging from the particulate matter discharging device in the above-described automatic control is possible, there is a concern that: the dust and the particulate matters discharged along with the particulate matters are discharged from the particulate matters discharging device in the automatic control process, and the equipment such as a radiator fan, an engine fan and the like are adversely affected.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open publication No. 2013-192474

Patent document 2: japanese patent laid-open publication No. 2016 & 036260

Patent document 3: japanese patent laid-open publication No. 2016-178870

Disclosure of Invention

Problems to be solved by the invention

(1) The technical problem corresponding to the background art (1) is as follows.

The technical problem of the invention is to make each discharging mechanism operate properly in a harvester with two types of discharging mechanisms for discharging the threshed materials.

(2) The technical problem corresponding to the background art (2) is as follows.

From the above-described facts, it is desirable not to discharge the dewatered pellets from the dewatered pellets discharge device in a situation where appropriate interlocking control is established between the attitude change control of the dewatered pellets discharge device and the discharge control of the dewatered pellets from the dewatered pellets tank by the dewatered pellets discharge device, for example, when the dewatered pellets are discharged by the dewatered pellets discharge device, the equipment such as a radiator fan is adversely affected.

Means for solving the problems

(1) The solution corresponding to the technical problem (1) is as follows.

The harvester of the invention comprises: a threshing device for threshing the reaped objects reaped by the reaping part; a threshing box for storing the threshed grain obtained by the threshing device; a first discharge unit having a first discharge port provided in a portion of the threshing box that is on a lower side when the threshing box is in the raised position; a box swinging mechanism for swinging the threshing box up and down between a descending posture and an ascending posture around a horizontal axis; a particulate matter discharging device having a vertical conveying section connected to the particulate matter tank, a horizontal conveying section connected to an upper end portion of the vertical conveying section, and a second discharging section connected to a tip end portion of the horizontal conveying section and having a second discharge port; a rotating mechanism for rotating the threshing material discharging device around a longitudinal axis between a storage posture in which the horizontal conveying part is positioned above the threshing material box and a discharging posture in which the horizontal conveying part extends out of the machine body; a discharge mode selector that selects a first discharge mode in which the particulate matter stored in the particulate matter tank is discharged from the first discharge port and a second discharge mode in which the particulate matter stored in the particulate matter tank is discharged from the second discharge port; a user operation device that outputs a particulate matter discharge preparation command for preparing for the discharge of the particulate matter from the particulate matter tank; and a particulate matter discharge control unit configured to rotate the particulate matter discharge device to the discharge posture in response to the particulate matter discharge preparation command when the first discharge mode is selected by the discharge mode selection unit.

In this harvester, a first discharge mode in which the threshed material is discharged from the first discharge port and a second discharge mode in which the threshed material is discharged from the second discharge port are prepared in order to discharge the threshed material from the threshed material tank. When a particulate matter discharge preparation command for preparing for particulate matter discharge is issued, the discharge mode selected by the discharge mode selection section is confirmed. When the first discharge mode is selected, the particulate matter discharging device rotates to a discharge posture. In the first discharge mode, the screen is swung to the raised position, but during this swing, the screen interferes with the horizontal conveying section of the screen discharge device in the storage position. In the configuration of the present invention, as a preparatory situation for the discharge of the particulate matter, first, the particulate matter discharge device is rotated to the discharge posture, and therefore, interference between the particulate matter box and the horizontal conveying section is avoided.

In a preferred embodiment of the harvester, the harvester includes: a chute vertically swingable between a closed posture facing the first discharge port and closing the first discharge port and a use posture swingable downward from the closed posture to open the first discharge port and to allow the flow-down guide of the particulate matter; and a link mechanism that swings the chute toward the use posture side in conjunction with the swinging of the threshing box toward the ascending posture side, and swings the chute toward the lock posture side in conjunction with the swinging of the threshing box toward the descending posture side. The linkage mechanism is configured not to cause the swinging of the chute and the swinging of the threshing box to be interlocked with each other during a period from the descending posture to a discharge preparation posture between the descending posture and the ascending posture. Further, the particulate matter discharge control unit may rotate the particulate matter discharging device to the discharge posture in response to the particulate matter discharge preparation command in a state where the first discharge mode is selected by the discharge mode selecting unit, and then raise the particulate matter tank to the discharge preparation posture.

According to this configuration, the first discharge port is blocked and the threshed grains are not discharged until the predetermined swing posture (discharge preparation posture) in the swing process of the threshed grain tank from the lowered posture. However, the screen is swung to the discharge preparation position in response to the rotation of the particulate matter discharging device to the discharge position based on the particulate matter discharge preparation command. Thus, when the discharging operation (swinging further upward of the screen) is performed after the preparation for discharging the particulate matter is made, the particulate matter is immediately discharged from the screen, and therefore, no unnecessary delay is caused in the discharging operation.

In a preferred embodiment of the harvester, the particulate matter discharging control unit rotates the particulate matter discharging device to the discharging posture in response to the particulate matter discharging preparation command when the second discharging mode is selected by the discharging mode selecting unit. With this configuration, the rotation of the particulate matter discharging device to the discharging position, which is necessary to prepare for the discharge of the particulate matter in the second discharging mode, is preferably performed in response to the particulate matter discharge preparation command.

In the discharging of the dewatered grains in the second discharging mode, the dewatered grains stored in the dewatered grain tank are preferably inclined so as to be collected at a position suitable for discharging. In a preferred embodiment, the particulate matter discharging control unit rotates the particulate matter discharging device to the discharging position in response to the particulate matter discharging preparation command in a state where the second discharging mode is selected by the discharging mode selecting unit, and then raises the particulate matter tank to a predetermined position.

The first discharge port is preferably opened when the first discharge mode is not selected, because the discharging of the dewatered solids from the first discharge port is basically performed by the gravity acting on the dewatered solids in the direction of the first discharge port due to the inclination of the dewatered solids tank. Therefore, in a preferred embodiment, the discharge mode selecting unit includes a lock mechanism having a lock position for prohibiting the first discharge port from being opened and an unlock position for permitting the first discharge port to be opened, and selects the first discharge mode by detecting the unlock position of the lock mechanism, and selects the second discharge mode by detecting the lock position of the lock mechanism. In this configuration, the lock mechanism needs to be in the unlocked position state when the first discharge mode discharges the particulate matter, and needs to be in the locked position state when the second discharge mode discharges the particulate matter. Also, if the lock mechanism is in the unlocked position state, the first discharge mode is selected. Further, if the lock mechanism is in the lock position state, the second discharge mode is selected. Thus, unlocking of the lock mechanism in the first discharge mode and locking of the lock mechanism in the second discharge mode are ensured, and the lock mechanism is in a locked state when the particulate matter is discharged in the first discharge mode, thereby avoiding a problem that the discharge of the particulate matter cannot be performed.

When the preparation for the discharge of the particulate matter in the second discharge mode is made in accordance with the particulate matter discharge preparation command, the power necessary for the discharge of the particulate matter is transmitted to the particulate matter discharge device, and the discharge of the particulate matter from the second discharge port is started. An operation member such as a discharge switch is used for such on/off operation of power transmission. However, this power transmission is not required in the first discharge mode. Therefore, in a preferred embodiment, the discharging device includes a discharging switch that outputs an on/off command for turning on/off the power transmission to the particulate matter discharging device, and the power transmission command output from the discharging switch is invalidated in a state where the first discharging mode is selected by the discharging mode selecting unit. This avoids a problem that power required for discharging the particulate matter is transmitted to the particulate matter discharging device when the first discharge mode is selected.

In any of the first discharge mode and the second discharge mode, if the discharge of the particulate matter is completed, it is necessary to perform the operation of returning the particulate matter tank to the lowering posture as the home position and the operation of returning the horizontal conveying section of the particulate matter discharging apparatus to the storing posture as the home position in a reasonable order. Such a job is preferably performed by one instruction. In a preferred embodiment, the user operation device has a function of outputting a discharge end command for ending the process of discharging the particulate matter from the particulate matter tank, and the particulate matter discharge control unit swings the particulate matter tank from the raised posture to the lowered posture in response to the discharge end command regardless of the discharge mode selected by the discharge mode selection unit, and then rotates the particulate matter discharge device from the discharge posture to the storage posture.

(2) The solution corresponding to the technical problem (2) is as follows.

The harvester of the invention comprises: a threshing device for threshing the reaped objects reaped by the reaping part; a threshing box for storing the threshed grain obtained by the threshing device; a box swinging mechanism for swinging the threshing box up and down between a descending posture and an ascending posture around a horizontal axis; a first discharge device connected to the first tank and discharging the first slurry stored in the first tank from a discharge port formed at a tip end of the first discharge device; and a rotation mechanism that rotates the particulate matter discharging device between a storage posture in which the discharge port is close to a vehicle body and a non-interference discharging posture in which the particulate matter box is swingable so as not to interfere with the particulate matter discharging device,

further provided with: a first detection unit that detects the posture of the threshing box; a second detection unit that detects a posture of the particulate matter discharge device; a first operation member that gives an automatic operation command for automatically changing the orientation of the particulate matter discharging device by the rotating mechanism; and a second operation tool for giving a command for discharging the dewatered grain to the dewatered grain discharging device,

further comprising: an automatic transfer management unit that outputs an automatic discharge transfer command for causing the particulate matter discharging device to transfer to the non-interference discharging posture, based on the automatic operation command; and a particulate matter discharge management unit that prohibits the particulate matter discharge by the particulate matter discharge device when the particulate matter discharge device is in a posture set within a first discharge prohibition region between the storage posture and the non-interference discharge posture during execution of the automatic discharge transition command.

According to this configuration, the first operation member is operated to execute the automatic discharging shift command for shifting the particulate matter discharging device to the non-interference discharging posture. At this time, when the particulate matter discharging device is in a posture set within the first discharge prohibition region between the storage posture and the non-interference discharge posture, the particulate matter discharge management unit prohibits the particulate matter discharge by the particulate matter discharging device. That is, the aggregate discharge management unit performs the interlock control between the posture change control of the aggregate discharge device and the aggregate discharge control of discharging the aggregate from the aggregate box by the aggregate discharge device. As a result, the particulate matter is not discharged from the particulate matter discharging device under a situation where, for example, the apparatus such as a radiator fan is adversely affected when the particulate matter is discharged by the particulate matter discharging device.

In a preferred embodiment of the present invention, the position of the particulate matter discharging device outside the first discharge prohibition region coincides with the non-interference discharge position. In this configuration, even if the orientation of the threshing box is changed, the discharging of the threshed material by the threshed material discharging device is prohibited until the threshing box reaches an orientation in which the interference between the threshed material discharging device and the threshing box does not occur. That is, the discharge work is performed in a state where the discharge port is sufficiently distant from the vehicle body, and therefore, adverse effects on equipment and the like located at the end of the vehicle body are reliably avoided.

In a preferred embodiment of the present invention, the apparatus further includes a third operation member that gives a manual operation command for manually changing the orientation of the particulate matter discharging device by the rotation mechanism, and the particulate matter discharge management unit prohibits the particulate matter discharge by the particulate matter discharging device when the particulate matter discharging device is in an orientation set within a second discharge prohibition region between the storage orientation and the non-interference discharge orientation during execution of the manual operation command. In this configuration, the posture of the particulate matter discharging device can be changed manually while visually checking by using the third operation tool. Even when the orientation of the particulate matter discharging device is changed manually as described above, a second discharge prohibition region is set for prohibiting the discharge of the particulate matter by the particulate matter discharging device. Therefore, if the position of the particulate matter discharging device is changed by the manual operation and the position is within the second discharge prohibition region, the discharge of the particulate matter in the position is prohibited, and therefore, the improper discharge of the particulate matter is avoided. In addition, in this configuration, even when the posture of the particulate matter discharging apparatus is brought into the posture within the second discharge prohibition region by the third operation element during the discharging of the particulate matter, the discharging of the particulate matter is prohibited, and therefore, the improper discharging of the particulate matter is avoided.

The second discharge prohibition region is effective when the orientation of the particulate matter discharging device is manually changed, and the first discharge prohibition region is effective when the orientation of the particulate matter discharging device is automatically changed. In the manual posture change, the operator (driver) can change the posture carefully while visually checking it. Therefore, in one preferred embodiment of the present invention, the second discharge-prohibition region is set narrower than the first discharge-prohibition region. This enables the operator to perform the threshing material discharge in the posture of the threshing material discharge device that is not set in the automatic operation.

In a preferred embodiment of the present invention, the first discharge-prohibited area is located between the storage posture and a posture separated from the storage posture by 45 degrees or more about a rotation axis of the particulate matter discharging device, and the second discharge-prohibited area is located between the storage posture and a posture separated from the storage posture by 45 degrees or less about the rotation axis. The posture region of the particulate matter discharging device, which is less likely to be adversely affected by the equipment such as the radiator fan, is empirically set to be in a range of 45 degrees around the rotation axis from the storage posture. In this configuration, the first discharge prohibition region when the orientation of the particulate matter discharging device is changed is automatically set to a region on the more safe side, and the second discharge prohibition region when the orientation of the particulate matter discharging device is changed is manually (normally, visually operated) set to a region in which the particulate matter can be discharged at an earlier time point (timing), so that the interlock control in consideration of the respective working environments of the automatic and manual operations can be performed.

Further, in a preferred embodiment of the present invention, the first discharge prohibition area and the second discharge prohibition area are disposed between the storage posture and a posture separated from the storage posture by 30 degrees or more around a rotation axis of the particulate matter discharge device. The posture region of the particulate matter discharging device, which is highly likely to be adversely affected by the equipment such as the radiator fan, is empirically set to be within a range of 30 degrees from the storage posture about the rotation axis center. With this configuration, the discharge prohibition area is not excessively enlarged, and adverse effects on the radiator fan and the like due to the discharge of the particulate matter can be prevented to the minimum.

In some cases, it is preferable to shift the particulate matter discharging device to the non-interference discharging position or to shift the particulate matter discharging device to the storage position, for example, based on the automatic operation command given by the operation of the first operation element, according to the position of the particulate matter tank or the particulate matter discharging device when the first operation element is operated. In a preferred embodiment of the present invention, the automatic transfer management unit outputs the automatic discharge transfer command based on the automatic operation command when the particulate matter discharging device is in the storage posture, and outputs an automatic storage transfer command for transferring the particulate matter discharging device to the storage posture based on the automatic operation command when the particulate matter discharging device is not in the storage posture, the automatic storage transfer command being valid when the particulate matter discharging device is in the lowered posture and invalid when the particulate matter discharging device is not in the lowered posture.

Drawings

Fig. 1 is a view showing a first embodiment (hereinafter, the same as fig. 7), and is a right side view showing the whole harvester.

Fig. 2 is a plan view showing the entire harvester.

Fig. 3 is a rear view of the threshing box showing the ascending discharge posture.

Fig. 4 is a plan view of a remote controller as an example of a user operation device.

Fig. 5 is a functional block diagram showing functions related to control of discharging the particulate matter.

Fig. 6 is a flowchart showing the first half of the flow of the particulate matter discharge control.

Fig. 7 is a flowchart showing the latter half of the procedure of the particulate matter discharge control.

Fig. 8 is a view showing a second embodiment (hereinafter, the same as fig. 14), and is a right side view showing the whole harvester.

Fig. 9 is a plan view showing the entire harvester.

Fig. 10 is a rear view of the threshing box showing the ascending discharge posture.

Fig. 11 is a top view of the remote operator.

Fig. 12 is a functional block diagram of a control unit that performs attitude change control of the particulate matter bin and the particulate matter discharging device.

Fig. 13 is an explanatory diagram showing a flow of control of posture change of the threshing material box and the threshing material discharging apparatus using the automatic button.

Fig. 14 is an explanatory diagram showing an example of a control flow in the orientation change control of the particulate matter tank and the particulate matter discharging device and the discharging control of the particulate matter discharging device.

Detailed Description

(first embodiment)

Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.

Fig. 1 is a right side view showing the whole harvester. Fig. 2 is a plan view showing the entire harvester. The "F" direction shown in fig. 1 and 2 is defined as the front direction of the traveling vehicle body 1, and the "B" direction is defined as the rear direction of the traveling vehicle body 1. The direction on the front side of the drawing sheet in fig. 1 and the "R" direction shown in fig. 2 are defined as the right direction of the traveling vehicle body 1, and the direction on the back side of the drawing sheet in fig. 1 and the "L" direction shown in fig. 2 are defined as the left direction of the traveling vehicle body 1. The "U" direction shown in fig. 1 is defined as an upper direction of the running vehicle body 1, and the "D" direction is defined as a lower direction of the running vehicle body 1.

A harvester is a machine for harvesting crops such as rice, wheat, and soybean. The harvester includes a traveling vehicle body 1 as a traveling device, which is equipped with a pair of left and right front wheels 2 and a pair of left and right rear wheels 3. The front wheels 2 are equipped in such a manner as to be drivable by power from an engine 4. The rear wheels 3 are equipped so as to be steerable by a power steering device (not shown). A riding type cab 7 is formed in a front portion of the traveling vehicle body 1. The cab 7 is covered with a cab. The traveling vehicle body 1 is provided with a harvesting unit 10 at its front portion. The harvesting unit 10 is operated to be raised and lowered between a lowered operation state in which it is lowered to the vicinity of the ground and a raised non-operation state in which it is raised to a position higher than the ground. A threshing device 12 (see fig. 2) and a threshing box 13 are provided from immediately behind the cab 7 to the rear of the traveling vehicle body 1.

The harvesting operation is performed by lowering the harvesting unit 10 to a lowered operation state and running the traveling vehicle body 1 in this state. That is, the roots of the standing grain stalks located in front of the traveling vehicle body 1 are cut off in the harvesting unit 10, and harvested to obtain harvested grain stalks as crops. The harvested straw is conveyed backward by the conveying device 11 and supplied to the threshing device 12. In the threshing device 12, the harvested straw is subjected to threshing treatment to obtain a threshed grain. The thresher is conveyed to a thresher tank 13 by a winnowing device 12a (see fig. 2) and stored.

As shown in fig. 2, the threshing device 12 is disposed in a state biased to the left side of the traveling vehicle body with respect to the center in the lateral width direction of the traveling vehicle body 1 in plan view. The threshing box 13 is provided above the threshing device 12 and extends from the left end to the right end of the traveling vehicle body 1. As shown in fig. 3, the threshing box 13 is driven by a box swinging mechanism TM of a cylinder (cylinder) driving system to swing up and down between a lowered posture and a raised posture about a horizontal axis X in the front-rear direction. The threshing box 13 is lifted and swung toward the right side of the traveling vehicle body. In the first embodiment, when the trunk 13 is in the lowered posture, the center of gravity of the vehicle body is located on the most central side of the vehicle body, and the traveling vehicle body 1 is in the most stable state.

As shown in fig. 3, a first discharge portion 18 is provided on a side wall of the threshing box 13. The first discharge portion 18 includes: a first discharge port 18a as an opening provided in a sidewall of the threshing box 13, and a chute 14 disposed opposite the first discharge port 18a to open and close the first discharge port 18 a. The chute 14 is supported by the particulate matter box 13 so as to be vertically swingable between a closed posture for closing the first discharge port 18a and a use posture for opening (opening) the first discharge port 18a, and functions as a guide plate for guiding the particulate matter discharged from the first discharge port 18a to flow down in the use posture. The first discharge port 18a is provided in a sidewall portion of the threshing box 13 which is located on a lower side when the threshing box 13 is in the raised position.

The chute 14 swings by the weight of the threshed grains stored in the threshed grain tank 13 balancing the gravity of the chute 14 itself, but the swing is restricted by the link mechanism 20. The link mechanism 20 links the vertical swing of the threshing box 13 and the swing of the chute 14. The link mechanism 20 includes a rotary telescopic link 21 and an outer/inner operation cable 22. The front end side of the telescopic link 21 is connected to the slide groove 14, and the rotation fulcrum side of the telescopic link 21 is connected to an inner cable (inner) at one end of the operation cable 22. An outer cable (outer) at one end of the operation cable 22 is connected to the thresher case 13. The outer cable at the other end of the operation cable 22 is coupled to the running vehicle body 1, and the inner cable at the other end of the operation cable 22 is coupled to the lock mechanism 23.

With the above configuration, the link mechanism 20 swings the chute 14 to the use posture side in conjunction with the swing of the threshing box 13 to the ascending posture side, and rotates the telescopic link 21 in conjunction with the swing of the threshing box 13 to the descending posture side, thereby swinging the chute 14 to the locking posture side. The linkage mechanism 20 is configured to: during the period from the descending posture to the discharge preparation posture between the descending posture and the ascending posture of the threshing box 13, the swinging of the chute 14 is not interlocked with the swinging of the threshing box 13.

The lock mechanism 23 is only schematically illustrated, but includes a lock lever (not illustrated) that can be switched between a lock position and an unlock position. In the lock position of the lock lever, the telescopic link 21 is prevented from rotating, and the chute 14 cannot swing toward the use posture.

In the unlock position of the lock lever, the telescopic link 21 is allowed to rotate, and the chute 14 can swing toward the use posture. That is, the lock mechanism 23 is configured to have a lock position that prohibits the opening of the first discharge port 18a and an unlock position that permits the opening of the first discharge port 18 a. As shown in fig. 3, when the threshing box 13 is swung to a predetermined swing angle (predetermined position) by the driving of the box swing mechanism TM, the chute 14 is rotated downward. Thereby, the first discharge port 18a blocked by the chute 14 is opened, and the threshed grains stored in the threshed grain tank 13 are guided to the chute 14 rotated downward and discharged. The discharge mode in which the threshed objects are discharged from the first discharge port 18a in this manner is referred to as a first discharge mode. The discharge port of the particulate matter used in the first discharge mode is a first discharge port 18 a.

As shown in fig. 1 and 2, a discharge agitator (screen) 13a extending along the horizontal axis X is disposed at the bottom of the threshing box 13. A thresher discharge device 30 is disposed to receive the threshed matter discharged from the thresher tank 13 by the discharge paddle 13a and discharge the threshed matter to a loading platform of a transport vehicle or the like located in the periphery of the traveling vehicle body 1. The thresher discharging device 30 includes a vertical conveyor 31 and a horizontal conveyor 32 as a kneading cage conveyor. One end of the vertical conveying section 31 is connected to the thresher discharge section of the discharge paddle 13a, and the vertical conveying section 31 extends upward along the vertical axis Y (see fig. 2) in the vicinity of the side wall of the thresher tank 13. The horizontal conveying section 32 is connected to the other end of the vertical conveying section 31 and extends along the ceiling wall of the threshing box 13 in the lowered position. The second discharge portion 33 provided at the distal end portion of the horizontal transport portion 32 is provided with a second discharge port 33 a.

The vertical conveying section 31 is rotatable about the vertical axis Y together with the horizontal conveying section 32. A cylinder drive type rotation mechanism SM is linked to the vertical conveying unit 31. The vertical conveying unit 31 is rotated by driving the rotation mechanism SM. That is, the particulate matter discharging device 30 changes its posture between a storage posture (shown by a solid line in fig. 2) in which the lateral conveyor 32 is positioned above the particulate matter tank 13 and a discharge posture (shown by a broken line in fig. 2) in which the lateral conveyor 32 is extended to the outside from the traveling vehicle body 1. In the discharge position, the discharge agitator 13a, the vertical conveyor 31, and the horizontal conveyor 32 are driven to discharge the threshed material from the second discharge port 33 a. The discharge mode in which the dewatered product is discharged from the second discharge port 33a in this manner is referred to as a second discharge mode. The second discharge outlet 33a is a discharge outlet for the dewatered product used in the second discharge mode.

When the lock mechanism 23 is in the unlock position, the particulate matter is discharged in the first discharge mode. When the lock mechanism 23 is in the lock position, the particulate matter is discharged in the second discharge mode.

A radiator 15A is provided at the rear portion of the traveling vehicle body 1, and a radiator fan 15B that supplies cooling air to the radiator 15A is provided at the vehicle body outer side of the radiator 15A.

Since the outside of the running vehicle body 1 is covered with the panel structure 16, the air flow hole 17 for allowing the radiator fan 15B to take in outside air is provided in the panel structure 16. As shown in fig. 1, the air circulation hole 17 is located slightly obliquely forward and downward of the position of the second discharge port 33a in the storage posture.

As schematically shown in fig. 5, a swing angle detection unit SU1 for detecting the vertical swing angle of the threshing box 13 is provided. In the first embodiment, the swing angle detection unit SU1 is used as a position detection unit for detecting the position of the threshing box 13, and includes a swing angle sensor. Further, a rotation angle detection unit SU2 for detecting the horizontal rotation angle of the thresher discharge device 30 is provided. In the first embodiment, the rotation angle detection unit SU2 is used as a position detection unit that detects the position of the particulate matter discharging device 30, and includes a rotation angle sensor.

The remote controller 8 is not particularly illustrated, but is disposed in a position in the driver section 7 that is easily reached by the hand of the driver (operator). The remote operator 8 is taken out by an operator when in use and can be used with one hand.

The remote operation device 8 is a rectangular parallelepiped shape that can be grasped by being placed on the palm of a hand, and has a rectangular operation surface 80 formed on the surface thereof. A manual button in the form of a cross key 81 is disposed at the approximate center of the operation panel 80. The vertical first piece 82 of the cross key 81 functions as a swing operation unit UD for swinging up and down the command box swing mechanism TM. The second piece 83 in the lateral direction of the cross key 81 functions as a rotation operation portion LR that instructs the rotation operation of the rotation mechanism SM. The cross key 81 is used as a third operation member for giving a manual operation command for manually changing the orientation of the threshing box 13 by the box swinging mechanism TM and the orientation of the threshing material discharging device 30 by the rotating mechanism SM.

The upper end 82U of the first piece 82 corresponds to a first swing command contact for swinging upward of the command box swing mechanism TM. The upward swing motion is instructed by pressing the upper end portion 82U of the first sheet 82. The lower end 82D of the first piece 82 corresponds to a second swing command contact for swinging movement below the command box swing mechanism TM. The downward swing motion is instructed by pressing the lower end 82D of the first piece 82.

The left end portion 83L of the second piece 83 corresponds to a first rotation command contact for commanding the left rotation operation of the rotation mechanism SM. The left rotation operation is instructed by pressing the left end portion 83L of the second piece 83. The right end portion 83R of the second piece 83 corresponds to a second rotation command contact for commanding the right rotation operation of the rotation mechanism SM. The right rotation operation is instructed by pressing the right end portion 83R of the second piece 83. Here, in the plan view, "right rotation" indicates that the thresher discharging device 30 (horizontal conveyor 32) rotates right (rotates clockwise) around the vertical axis Y, and "left rotation" indicates that the thresher discharging device 30 (horizontal conveyor 32) rotates left (rotates counterclockwise) around the vertical axis Y.

In an upper region of the operation panel 80, an automatic button 84 and a discharge button 85 functioning as a discharge switch are disposed. The automatic button 84 is assigned a function of giving a preparation command for discharging the particulate matter and a function of giving a discharge end command. The preparation command for discharging the particulate matter is a command for preparing for discharging the particulate matter from the particulate matter tank 13. The discharge end command is a command for returning the threshing box 13 and the threshing material discharging apparatus 30 to the respective home positions (stable positions), that is, the lowered posture and the storage posture, after the discharging of the threshing material from the threshing box 13 is completed. The discharge button 85 functions as a discharge switch that outputs an on/off command for turning on/off the power transmission to the particulate matter discharging device 30.

The discharge button 85 gives a command to discharge the particulate matter to be discharged by the particulate matter discharging device 30. That is, the discharge button 85 functions as a discharge switch that outputs an on/off command for turning on/off the power transmission to the particulate matter discharge device 30. When the first discharge mode for discharging the particulate matter stored in the particulate matter tank 13 from the first discharge port 18a is selected, the power transmission command for turning on the power transmission to the particulate matter discharge device 30 by the discharge button 85 is invalidated.

Switches, buttons, and the like, which are equivalent to the remote controller 8 described above, may be incorporated in an operation panel provided in the driver's cab.

Fig. 5 is a functional block diagram showing functions of the control unit 9 of the harvester related to control for discharging the threshed material stored in the threshed material tank 13 in either the first discharge mode or the second discharge mode. In the first discharge mode, the dewatered grain stored in the dewatered grain tank 13 is discharged from the first discharge port 18 a. In the second discharge mode, the dewatered grain stored in the dewatered grain tank 13 is discharged from the second discharge port 33 a.

The control unit 9 includes: an input signal processing unit 91, a device control unit 92, a tank position calculation unit 93, a discharge device position calculation unit 94, a particulate matter discharge control unit 95, and a discharge mode selection unit 96. The control signal generated by the control unit 9, for example, a drive signal to the box swinging mechanism TM and the rotating mechanism SM, a drive signal to the particulate matter discharging clutch CL that is turned on and off in the power transmission to the particulate matter discharging device 30 that carries out the removal of the particulate matter, and the like are transmitted via the equipment control unit 92. The input signal processing section 91 receives signals from various operation devices including operation signals (operation instructions) from the operation panel and the remote operator 8; detection signals from the swing angle detection unit SU1 and the rotation angle detection unit SU 2; a detection signal from a lock detection switch 28 that detects the lock position or the unlock position of the lock mechanism 23; signals from a work state detection sensor group including sensors and switches for detecting states of other devices constituting the harvester are transmitted to the respective functional units of the control unit 9.

The tank position calculating unit 93 calculates a swing position, a lowering posture, a raising posture, and other swing postures of the threshing tank 13 based on the detection signal from the swing angle detecting unit SU1, and outputs the calculated swing positions as tank position data. The discharge device position calculation unit 94 calculates the rotational position, the storage posture, the discharge posture, and other rotational postures of the particulate matter discharge device 30 based on the detection signal from the rotational angle detection unit SU2, and outputs the calculated rotational postures as particulate matter discharge device position data.

The discharge mode selector 96 selects and sets any one of the first discharge mode and the second discharge mode. In the first embodiment, the discharge mode selector 96 selects the first discharge mode when the lock mechanism 23 is in the unlock position and selects the second discharge mode when the lock mechanism 23 is in the lock position, based on the detection signal of the lock detection switch 28.

The particulate matter discharge control unit 95 outputs control data relating to the particulate matter discharge operation including the posture change of the particulate matter tank 13 and the particulate matter discharge device 30, in accordance with the operation of the user operation device such as the remote operator 8 by the operator. When the automatic button 84 is pressed when the threshing box 13 is in the lowered position and the threshing material discharging device 30 is in the initial position of the storage position, a threshing material discharge preparation command is given to the threshing material discharge control unit 95. When the discharging of the particulate matter is completed and the particulate matter discharging device 30 is not in the storage posture, a discharge end command for ending the particulate matter discharging process for discharging the particulate matter from the particulate matter tank 13 is given to the particulate matter discharge control unit 95 when the automatic button 84 is pressed.

When the first discharge mode is selected and a preparatory command for discharging the particulate matter is given, the particulate matter discharge control unit 95 rotates the particulate matter discharge device 30 to the discharge posture (for example, 90-degree rotation). This enables the thresher tank 13 to be lifted and swung up without interfering with the thresher discharge device 30, and the thresher can be discharged from the first discharge port 18 a. Similarly, when the second discharge mode is selected, the particulate matter discharging device 30 is rotated (for example, 90-degree rotation) to the discharge posture even if the particulate matter discharge preparation command is given. This allows the thresher tank 13 to be lifted and swung up without interfering with the thresher discharge device 30, thereby collecting the threshed grains in the discharge screw 13 a.

In the particulate matter discharging process in the first discharging mode, when the upper end portion 82U of the cross key 81 is pressed in a state in which the particulate matter discharging preparation is ready, the upward swinging operation is instructed, and the particulate matter box 13 swings in the upward posture (for example, 40 degrees swing). Thereby, the chute 14 is changed in posture to the use posture, the first discharge port 18a is opened, and the threshing material is discharged from the first discharge port 18a while sliding through the chute 14. By pressing the upper end 82U or the lower end 82D of the cross button 81, the inclination of the threshing box 13 can be adjusted, and the amount of the discharged threshed material from the first discharge port 18a can be adjusted.

In a state in which the preparation for discharging the particulate matter is made, the particulate matter discharge processing in the second discharge mode is started by pressing the discharge button (discharge switch) 85. By pressing the discharge button 85, a power transmission command for turning on the particulate matter discharge clutch CL is given to the particulate matter discharge control unit 95. In response to this, the particulate matter discharge control unit 95 turns on the particulate matter discharge clutch CL. As a result, the discharge screw 13a is driven to discharge the dewatered grains from the second discharge port 33a of the dewatered grains discharge device 30. At this time, the rotation mechanism SM is driven by the operation of pushing the second piece 83 in the lateral direction of the cross key 81, and therefore the second discharge port 33a can be adjusted.

In a state where the first discharge mode is selected and the preparation for discharging the particulate matter is made, even if the discharge button (discharge switch) 85 is pressed, the operation is invalidated and the power transmission command for turning on the particulate matter discharge clutch CL is not given to the particulate matter discharge control unit 95.

At the end of the particulate matter discharging process, if the automatic button 84 is pressed, a discharging end command is given to the particulate matter discharging control unit 95. Regardless of the discharge mode selected by the discharge mode selection unit 96, the particulate matter discharge control unit 95 swings the particulate matter tank 13 from the upward posture to the downward posture in response to the discharge end command, and then rotates the particulate matter discharge device 30 from the discharge posture to the storage posture.

Next, the flow of the particulate matter discharge control in the first discharge mode and the second discharge mode will be described with reference to fig. 6 and 7. The initial condition of the discharging control of the particulate matter is that the particulate matter tank 13 is in the lowered posture and the particulate matter discharging device 30 is substantially in the storage posture.

As shown in fig. 6, in the particulate matter discharging control, first, an input operation to the remote operator 8 as a user operation device is confirmed, and whether or not the automatic button 84 has been operated, that is, whether or not a particulate matter discharging preparation command has been output is confirmed (# 01). In a case where the auto button 84 has been operated (#01 yes branch), it is confirmed which of the first discharge mode and the second discharge mode is selected (# 02).

When the first discharge mode is selected in step #02, the first discharge port 18a discharges the dewatered product. Before this, the preparation process for discharging the particulate matter is automatically performed. In the preparation process for discharging the particulate matter in the first discharge mode, the particulate matter discharging device 30 is rotated from the storage posture to the discharge posture (#11, #12, # 13).

The preliminary upward swing in step #14 is one of the other embodiments, and is aimed at tilting the particulate matter discharging device 30 to a swing angle of such an extent that the particulate matter is not discharged from the first discharge port 18a after the rotation to the discharge position. By including this preliminary upward swinging motion in the preliminary treatment for discharging the particulate matter, the particulate matter is immediately discharged from the first discharge port 18a when the particulate matter tank 13 is lifted and swung in the subsequent treatment for discharging the particulate matter.

If the second discharge mode is selected in step #02, the second discharge port 33a discharges the dewatered product. Before this, a preparation process for discharging the particulate matter is performed. In the preparation process for discharging the particulate matter in the second discharge mode, the rotation of the particulate matter discharging device 30 from the storage posture to the discharge posture is also performed (#21, #22, # 23).

The preliminary upward swing of step #24 is one of the other embodiments, and the flow of the threshed material stored in the threshed material tank 13 to the discharge screw 13a is facilitated by slightly inclining the threshed material tank 13 after the rotation to the discharge posture of the threshed material discharge device 30. In the discharging of the threshed material in the second discharging mode, since the threshing box 13 needs to be inclined if the amount of threshed material in the threshing box 13 is reduced, it is also advantageous to slightly incline the threshing box 13 by the preliminary upward swinging before the discharging process of the threshed material.

When the preparation process for discharging the particulate matter shown in fig. 6 is completed, the process proceeds to the following process shown in fig. 7.

When the preparation process for discharging the particulate matter is completed in the first discharge mode, the particulate matter discharge process for discharging the particulate matter from the first discharge port 18a is manually performed, but before that, it is checked whether or not a command to complete the particulate matter discharge process is not output (# 30). Similarly, when the preparation process for discharging the particulate matter is ended in the second discharge mode, the particulate matter discharge process for discharging the particulate matter from the second discharge port 33a is manually performed, but before that, it is checked whether or not an end command for ending the particulate matter discharge process is not output (# 40). The end command of the particulate matter discharge processing is output by operating the automatic button 84 after the particulate matter discharge preparation processing is ended.

If the end instruction is not output in the first discharge mode (#30 no branch), the process proceeds to the thresher discharge processing. It is checked whether or not a swing command for the threshing box 13 is input by pressing the upper end 82U or the lower end 82D of the cross key 81 (# 31). If the swing instruction is not input (#31 NO branch), return is made to step # 30. If a wobbling instruction is input (#31 yes branch), it is confirmed whether the wobble is up-wobbling or down-wobbling. If the upward swing is performed, an upward control signal is sent to the box swing mechanism TM to swing the threshing box 13 upward, and if the downward swing is instructed, a downward control signal is sent to the box swing mechanism TM to swing the threshing box 13 downward (# 32). Thereafter, the process returns to step # 30. In the operation flow of step #31 and step #32, if the screen 13 is at a predetermined inclination angle or more, the first discharge port 18a discharges the screen.

If the end command is not output in the second discharge mode (#40 no branch), the process proceeds to the thresher discharge process. First, it is checked whether or not a discharge command as an on-off command for turning on/off the power transmission to the particulate matter discharging device 30 is output by the pressing operation of the discharge button 85 (# 41). If the discharge command is output (#41 yes branch), the screen discharge clutch CL is turned on to drive the discharge screw 13a, and the screen is discharged from the screen tank 13 and the screen is discharged from the second discharge port 33a as the discharge port of the screen discharge device 30 (# 42). Next, it is checked whether or not a swing command for the threshing box 13 is input (# 43). If the swing instruction is input (#43 "yes" branch), it is confirmed whether the swing is up swing or down swing. If the upward swing is performed, an upward control signal is sent to the box swing mechanism TM to swing the threshing box 13 upward, and if the downward swing is instructed, a downward control signal is sent to the box swing mechanism TM to swing the threshing box 13 downward (# 44).

Then, it is checked whether or not a rotation command for the particulate matter discharging device 30 is input (# 45). The swing command is output by pressing the left end 83L or the right end 83R of the cross key 81. If the rotation instruction is input (#45 yes branch), it is confirmed whether the rotation is left rotation or right rotation. If the rotation is left, a left rotation control signal is transmitted to the rotation mechanism SM and the particulate matter discharging device 30 is rotated left, and if the rotation is right, a right rotation control signal is transmitted to the rotation mechanism SM and the particulate matter discharging device 30 is rotated right (# 46).

Next, it is checked whether or not a discharge stop command is output (# 47). The discharge stop command is output by pressing the discharge button 85 again during the process of discharging the particulate matter. If the discharge stop command is output (#47, "yes" branch), the particulate matter discharge clutch CL performs a shut-off operation, the discharge agitator 13a stops, the discharge of the particulate matter from the second discharge port 33a stops (#48), and the process returns to step # 40.

In step #41, if the eject instruction is not output (#41 no branch), the process proceeds to step # 43. In step #43, if the swing instruction is not input (#43 "no" branch), it jumps to step # 45. In step #45, if the rotation instruction is not input (#45 no branch), it jumps to step # 47. In step #47, if the discharge stop instruction is not output (#47 "no" branch), the flow jumps to step # 40.

In steps #30 and #40, when the end command is output (yes branch of #30 and yes branch of #40), the flow of the aggregate discharge end is executed. This procedure for finishing the discharging of the particulate matter is automatically performed, and the particulate matter discharging device 30 returns to the storage posture as the initial position while the particulate matter tank 13 returns to the lowering posture as the initial position. The procedure of the end of the discharging of the particulate matter is not executed during the discharging of the particulate matter, and therefore, it is first confirmed whether the particulate matter is in the discharging process (#60), and if it is in the discharging process (#60 "yes" branch), the discharging of the particulate matter is stopped (# 61). Next, a lowering control signal is transmitted to the bin swinging mechanism TM until the threshing bin 13 is brought into the lowering posture (#62), and if the threshing bin 13 is brought into the lowering posture (#63 yes branch), the bin swinging mechanism TM is stopped (# 64). If the screen 13 is in the lowered position, a rotation control signal is transmitted to the rotation mechanism SM until the screen discharge device 30 is in the storage position (# 65). If the particulate matter discharging device 30 assumes the storage posture (#66 yes branch), the rotation mechanism SM is stopped (# 67). This completes the flow of discharging the particulate matter.

(other embodiment mode of the first embodiment mode)

Hereinafter, another embodiment of the first embodiment will be described. The first embodiment and the other embodiments described above may be combined or replaced in various ways within a range not contradictory to each other.

(1) In the first embodiment described above, the discharge mode selector 96 is configured to: based on a detection signal of the lock detection switch 28, the first discharge mode is selected if the lock mechanism 23 is in the unlock position, and the second discharge mode is selected if the lock mechanism 23 is in the lock position.

The selection of the discharge mode by the discharge mode selector 96 can be variously changed. For example, a discharge mode selection switch that selects the first discharge mode and the second discharge mode may be provided, and the position of the lock mechanism 23 may be switched according to the state of the discharge mode selection switch.

(2) The functional block diagram of the control unit 9 shown in fig. 5 is a diagram for convenience of explanation, and the functional units shown in fig. 5 may be further divided or may be arbitrarily integrated. The control unit 9 may be divided into a plurality of functions, and the functional units according to the present invention may be distributed among the control units 9.

(3) In the first embodiment described above, the remote operator 8 is a dedicated product, but instead, a smartphone or a tablet computer may be used as the remote operator 8 of the present invention by installing an appropriate application in the smartphone or the tablet computer.

(4) In the first embodiment described above, the tank swing mechanism TM and the rotation mechanism SM are driven by the cylinders, but the cylinders may be hydraulic cylinders or electric cylinders. Further, an electric motor or a hydraulic motor may be used as the drive source.

(5) The layout of the devices described in the first embodiment is merely an example, and the layout of the engine 4, the radiator 15A, the radiator fan 15B, the thresher 12, the threshing box 13, and the like may be appropriately changed. Further, the threshing box 13 is not limited to being swung up toward the vehicle right side as in the first embodiment described above, and may be swung up toward the vehicle rear side or the vehicle left side, for example.

(6) The present invention is not limited to harvesters that harvest rice, wheat, soybeans, and the like, and can be applied to various harvesters such as corn harvesters that harvest corn ears and thresh the corn ears in a threshing device to obtain corn kernels. Further, the present invention can be applied to a harvester including a crawler type traveling device or a traveling device in which wheels and a small crawler are combined.

(second embodiment)

Hereinafter, a second embodiment of the present invention will be described with reference to the drawings.

Fig. 8 is a right side view showing the whole harvester. Fig. 9 is a plan view showing the entire harvester. The "F" direction shown in fig. 8 and 9 is defined as the front direction of the traveling vehicle body 101, and the "B" direction is defined as the rear direction of the traveling vehicle body 101. The direction on the front side of the drawing sheet in fig. 8 and the "R" direction shown in fig. 9 are defined as the right direction of the traveling vehicle body 101, and the direction on the back side of the drawing sheet in fig. 8 and the "L" direction shown in fig. 9 are defined as the left direction of the traveling vehicle body 101. The "U" direction shown in fig. 8 is defined as the upper direction of the traveling vehicle body 101, and the "D" direction is defined as the lower direction of the traveling vehicle body 101.

A harvester is a machine for harvesting crops such as rice, wheat, and soybean. The harvester includes a traveling vehicle body 101 as a traveling device, which is equipped with a pair of left and right front wheels 102 and a pair of left and right rear wheels 103. The front wheels 102 are equipped in such a manner as to be drivable by power from the engine 104. The rear wheels 103 are equipped so as to be steerable by a power steering device (not shown). A riding type cab 107 is formed in a front portion of the traveling vehicle body 101. The cab 107 is covered with a cab. The traveling vehicle body 101 is provided with a harvesting unit 110 at its front portion. The harvesting unit 110 is operated to be raised and lowered between a lowered operation state in which it is lowered near the ground and a raised non-operation state in which it is raised to a position higher than the ground. A threshing device 112 (see fig. 9) and a threshing box 113 are provided from immediately behind the cab 107 to the rear of the traveling vehicle body 101.

The harvesting unit 110 is lowered to a lowered working state, and the traveling vehicle body 101 is caused to travel in this state, thereby performing harvesting work. That is, the roots of the standing grain stalks located in front of the traveling vehicle body 101 are cut off in the harvesting unit 110, and harvested to harvest the harvested grain stalks as harvested material. The harvested straw is conveyed backward by the conveying device 111 and supplied to the threshing device 112. In the threshing device 112, the harvested straw is subjected to threshing processing to obtain a threshed material. The thresher is conveyed to a thresher tank 113 by a winnower 112a (see fig. 9) and stored.

As shown in fig. 9, the threshing device 112 is disposed in a state biased to the left side of the traveling vehicle body with respect to the center in the lateral width direction of the traveling vehicle body 101 in plan view. The threshing box 113 is provided above the threshing device 112 and extends from the left end to the right end of the traveling vehicle body 101. As shown in fig. 10, the threshing tank 113 is driven by a tank swinging mechanism TM 'of a cylinder driving system to swing up and down between a lowered posture and a raised posture around a horizontal axis X' in the front-rear direction. The threshing box 113 is lifted and swung toward the right side of the traveling vehicle body. In the second embodiment, when the trunk 113 is in the lowered position, the center of gravity of the vehicle body is located on the most central side of the vehicle body, and the traveling vehicle body 101 is in the most stable state.

As shown in fig. 10, when the threshing box 113 is swung to a predetermined swing angle by the driving of the box swing mechanism TM', the chute 114 is rotated downward. As a result, the first discharge port 118 blocked by the chute 114 is opened, and the threshed grains stored in the threshed grain tank 113 are guided by the chute 114 rotated downward and discharged.

As shown in fig. 8 and 9, a discharge agitator 113a extending along the horizontal axis X' is provided at the bottom of the threshing box 113. The harvester includes a thresher discharge device 130 for receiving the thresher discharged from the thresher tank 113 by the discharge paddle 113a and discharging the thresher to a loading platform of a transport vehicle or the like located in the periphery of the traveling vehicle body 101. The thresher discharge device 130 includes a vertical conveyor 131 and a horizontal conveyor 132 as a kneading cage conveyor. One end of the vertical conveying portion 131 is connected to the thresher discharge portion of the discharge agitator 113a, and the vertical conveying portion 131 extends upward along the vertical axis Y' (see fig. 9) in the vicinity of the sidewall of the thresher tank 113. The horizontal conveying section 132 is connected to the other end of the vertical conveying section 131, and extends along the ceiling wall of the threshing box 113 in the lowered position. A second discharge port 133 (corresponding to a "discharge port" in the present invention) is provided at the distal end portion of the lateral conveying portion 132.

The vertical conveying section 131 is rotatable about a vertical axis Y' together with the horizontal conveying section 132. A rotation mechanism SM 'of a cylinder drive system is linked to the vertical conveying unit 131, and the vertical conveying unit 131 is rotated by the driving of the rotation mechanism SM'. That is, the particulate matter discharging device 130 changes the posture between the storage posture (shown by a solid line in fig. 9) in which the lateral conveying portion 132 is positioned above the particulate matter tank 113 and the non-interference discharging posture (shown by a broken line in fig. 9) in which the lateral conveying portion 132 is extended outward from the traveling vehicle body 101. In the non-interference discharge posture, the discharge paddle 113a, the vertical conveying section 131, and the horizontal conveying section 132 are driven to discharge the dewatered product from the second discharge port 133. In the second embodiment, as shown in fig. 13, the non-interference discharge attitude is set in the range of 80 degrees to 90 degrees with the storage attitude as a reference (0 degrees).

A radiator 115A is provided at the rear of the traveling vehicle body 101, and a radiator fan 115B that supplies cooling air to the radiator 115A is provided at the vehicle body outer side of the radiator 115A.

Since the outside of the running vehicle body 101 is covered with the wall plate structure 116, the air flow hole 117 through which the radiator fan 115B sucks in the outside air is provided in the wall plate structure 116. As shown in fig. 8, the air circulation hole 117 is located slightly obliquely forward and downward of the position of the second discharge port 133 in the storage posture.

The remote operator 108 is shown in fig. 11. The remote operator 108 is connected to the control unit 105 of the harvester by a communication cable. Of course, when the remote operator 108 and the control unit 105 have a wireless data communication function, data communication can be performed wirelessly with each other.

In the second embodiment, the remote operation unit 108 is used for operations of the particulate matter tank 113 and the particulate matter discharging device 130, and ON/OFF operations of carrying out the particulate matter.

The remote control 108 is not particularly illustrated, but is disposed in a position of the driver's (operator) portion 107 where a hand of the driver can easily reach. The remote operator 108 is removed by the operator during use and can be used with one hand.

The remote operator 108 has a rectangular parallelepiped shape that can be grasped by placing it on the palm of a hand, and the surface thereof forms a rectangular operation surface 180. A manual button in the form of a cross key 181 is provided at the approximate center of the operation panel 180. The first piece 182 in the vertical direction of the cross key 181 functions as a swing operation unit UD 'for the vertical swing operation of the command box swing mechanism TM'. The second piece 183 in the lateral direction of the cross key 181 functions as a rotation operation portion LR 'for instructing the rotation operation of the rotation mechanism SM'. The cross key 181 is used as a third operation element for giving a manual operation command for manually changing the orientation of the threshing object box 113 by the box swinging mechanism TM 'and the orientation of the threshing object discharging device 130 by the rotating mechanism SM'.

The upper end portion 182U of the first piece 182 corresponds to the first swing command contact for commanding the upward swing operation of the box swing mechanism TM', and the upward swing operation is commanded by pressing the upper end portion 182U of the first piece 182. The lower end 182D of the first piece 182 corresponds to the second swing command contact for commanding the downward swing operation of the box swing mechanism TM', and the downward swing operation is commanded by pressing the lower end 182D of the first piece 182.

The left end 183L of the second piece 183 corresponds to the first rotation command contact for commanding the left rotation operation of the rotation mechanism SM', and the left rotation operation is commanded by pressing the left end 183L of the second piece 183. The right end 183R of the second piece 183 corresponds to the second rotation command contact for commanding the left rotation operation of the rotation mechanism SM', and the right rotation operation is commanded by pressing the right end 183R of the second piece 183. Here, in the plan view, "right rotation" indicates that the thresher discharge device 130 (horizontal conveyor 132) rotates right (rotates clockwise) about the vertical axis Y ', and "left rotation" indicates that the thresher discharge device 130 (horizontal conveyor 132) rotates left (rotates counterclockwise) about the vertical axis Y'.

In the cross key 181 which functions as the swing operation unit UD 'and the rotation operation unit LR' in the upper region of the operation panel 180, an auto button 184 which is a first operation element and a discharge button 185 which is a second operation element are provided as device operation units different from the swing operation unit UD 'and the rotation operation unit LR'.

The automatic button 184 is provided as a first operation member with an automatic operation command for automatically changing the posture of the particulate matter bin 113 by the bin swing mechanism TM 'and the posture of the particulate matter discharging device 130 by the rotation mechanism SM'. The discharge button 185 serves as a second operation member for giving a command to discharge the particulate matter by the particulate matter discharging device 130.

The auto button 184 and the eject button 185 are provided with a lamp 186, that is, near the upper edge of the operation panel 180. The lamp 186 can inform various information by its light-on state (normally on, short-period blinking, long-period blinking). The lamp 186 is configured to notify, for example, that the discharge by the particulate matter discharging device 130 is performed by lighting, and to notify, for example, that the swinging of the particulate matter tank 113 and the rotation of the particulate matter discharging device 130 are being performed, or that other harvester equipment is malfunctioning and the fuel is low, by short-cycle blinking and long-cycle blinking.

Switches, buttons, and the like equivalent to the remote controller 108 described above may be incorporated in an operation panel provided in the driver's cab.

Fig. 12 is a functional block diagram showing functions related to orientation change control and particulate matter discharge control of the particulate matter tank 113 and the particulate matter discharge device 130 in the control unit 105 of the harvester. The control unit 105 includes: an input signal processing unit 151, a device control unit 152, a tank position calculation unit 153, a discharge device position calculation unit 154, a posture change control module 155, and a particulate matter discharge management unit 156. The control signal generated by the control unit 105, for example, a drive signal to the box swinging mechanism TM ' and the rotating mechanism SM ', a drive signal to the particulate matter discharging clutch CL ' that is turned on and off in the power transmission to the particulate matter discharging device 130 that carries out the removal of the particulate matter, and the like are transmitted via the equipment control unit 152. The input signal processing section 151 receives signals from various operation devices including operation signals (operation instructions) from the remote operator 108; detection signals from a swing angle detection unit 109A as a first detection unit and a rotation angle detection unit 109B as a second detection unit; signals from a work state detection sensor group 109 including sensors and switches for detecting states of other devices constituting the harvester are transmitted to the respective functional units of the control unit 105.

The tank position calculating unit 153 calculates the swing position of the threshing tank 113, that is, the swing posture such as the lowering posture or the raising posture, based on the detection signal from the swing angle detecting means 109A, and outputs the calculated swing position as tank position data. The discharging device position calculating section 154 calculates a rotation angle about the longitudinal axis (rotation axis) Y' of the particulate matter discharging device 130 based on the detection signal from the rotation angle detecting unit 109B. This rotation angle is set to 0 degrees in the storage posture of the thresher discharge device 130 in which the horizontal conveyor 132 is positioned above the thresher box 113, and is increased to such an extent that the horizontal conveyor 132 extends out of the vehicle body in the lateral direction. The discharging device position calculating unit 154 calculates the rotational position (rotational posture such as the storage posture and the non-interference discharging posture) of the particulate matter discharging device 130 from the calculated rotational angle, and outputs the rotational position and the rotational angle as particulate matter discharging device position data.

The posture change control module 155 outputs control data for changing the posture of the particulate matter tank 113 and the particulate matter discharging device 130 based on an operation command of the operator. In the second embodiment, the posture change control module 155 includes a determination unit 1551 and an automatic transfer management unit 1552. The determination unit 1551 evaluates the positional relationship between the threshing tank 113 and the threshing material discharging device 130, which is caused by the posture change of the threshing tank 113 and the posture change of the threshing material discharging device 130 based on the operation command, and determines whether or not interference between the threshing tank 113 and the threshing material discharging device 130 does not occur. In the event of an intervention, such an operating instruction is invalidated.

When the particulate matter discharging device 130 is in the storage posture, the automatic transfer management unit 1552 outputs an automatic discharge transfer command for causing the particulate matter discharging device 130 to transfer to the non-interference discharge posture, based on the automatic operation command given by the automatic button 184. When the particulate matter discharging device 130 is out of the storage posture, the automatic transfer management unit 1552 outputs an automatic storage transfer command for causing the particulate matter discharging device 130 to transfer to the storage posture based on the automatic operation command. The automatic storage and transfer command is valid when the threshing box 113 is in the lowered position, and is invalid when the threshing box 113 is not in the lowered position.

The particulate matter discharge management unit 156 outputs a particulate matter discharge start command (corresponding to a "particulate matter discharge command" of the present invention) for turning on the particulate matter discharge clutch CL 'and a particulate matter discharge stop command for turning off the particulate matter discharge clutch CL' based on the operation of the discharge button 185. When the discharge button 185 is operated in the state where the discharge of the particulate matter is stopped, a particulate matter discharge start command is output, and when the discharge button 185 is operated in the state where the particulate matter is discharged, a particulate matter discharge stop command is output. The particulate matter discharge management section 156 also has a function of performing interlock control between the particulate matter discharge control and the attitude control of the particulate matter discharge device 130. The thresher discharge management unit 156 permits the thresher discharge device 130 to discharge on a dischargeable area preset in the entire rotation area, and prohibits the thresher discharge device 130 from discharging on an area from the storage position to the dischargeable area. Further, while the particulate matter discharging operation is being performed, the particulate matter discharging management unit 156 requests the automatic transfer management unit 1552 to reserve the output of the automatic storage transfer command. This prevents the particulate matter discharging device 130 from shifting to the storage posture during the particulate matter discharging process.

The interlock control between the particulate matter discharge control and the attitude control of the particulate matter discharge device 130 will be described in detail below. The interlock control includes an automatic interlock control effective when the orientation of the thresher discharge device 130 is automatically changed and a manual interlock control effective when the orientation of the thresher discharge device 130 is manually changed.

The particulate matter discharge management unit 156 prohibits the particulate matter discharge by the particulate matter discharge device 130 when the particulate matter discharge device 130 is in a posture set within the first discharge prohibition region between the storage posture and the non-interference discharge posture during execution of the automatic discharge transition command. This is automatically controlled with interlocking. The following rule is proposed for the automatic interlocking control.

(1) The posture of the particulate matter discharging device 130 outside the first discharge prohibition region coincides with a non-interference discharge posture (for example, a range of 80 degrees to 90 degrees as shown in fig. 13). That is, the discharging of the particulate matter is enabled only when the position of the particulate matter discharging device 130 is the non-interference discharging position.

(2) The first discharge-prohibited area extends over the storage posture (0 degrees) and a posture (for example, 80 degrees as shown in fig. 13) separated by 45 degrees or more from the storage posture about the vertical axis (rotation axis) Y' of the particulate matter discharging device 130.

(3) The first discharge-prohibited area extends over the storage posture (0 degrees) and a posture (for example, 80 degrees as shown in fig. 13) separated by 30 degrees or more from the storage posture about the vertical axis Y' of the particulate matter discharging device 130.

From such various rules, the most appropriate rule determined based on the appropriate rule is set to the actual harvester.

The particulate matter discharge management unit 156 prohibits the particulate matter discharge by the particulate matter discharge device 130 when the particulate matter discharge device 130 is in a posture set within the second discharge prohibition region between the storage posture and the non-interference discharge posture during execution of the manual operation command based on the operation of the cross key 181. This is manually with interlocking control. The following rule is also proposed for this manual interlocking control.

(1) The second discharge-inhibiting region (for example, 0 degree to 30 degrees as shown in fig. 13) is narrower than the first discharge-inhibiting region (for example, 0 degree to 80 degrees as shown in fig. 13).

(2) The second discharge prohibition area extends over the storage posture (0 degrees) and is separated from the storage posture by 45 degrees or less (for example, 30 degrees as shown in fig. 13) about the rotation axis.

(3) The second discharge prohibition area extends over the storage posture (0 degrees) and a posture (for example, 30 degrees as shown in fig. 13) separated from the storage posture by 30 degrees or more around the vertical axis Y' of the particulate matter discharge device 130.

According to such a rule, the most appropriate rule determined based on the appropriate rule is set to the actual harvester.

In the second embodiment, as shown in fig. 13, the second discharge prohibition region is a range from a rotation angle of 0 degrees to a rotation angle of 30 degrees, which are the storage postures of the particulate matter discharge device 130. Even when the particulate matter discharging device 130 is in a posture at a rotation angle smaller than 30 degrees, the configuration enables discharging of the particulate matter to a loading platform of the particulate matter transporting vehicle or the like. However, in order to avoid the adverse effect on the equipment such as the radiator fan 115B due to dust flying from the discharged degreased matter, clogging of the air flow hole 117 by the degreased matter itself, and the like, the second embodiment prohibits the discharge of the degreased matter within the rotation angle of 30 degrees. In the harvester according to the second embodiment, the distance between the wall plate structure 116 provided with the air flow hole 117 and the second discharge port 133 of the thresher discharge device 130 rotated by 30 degrees is about 1 m.

Fig. 14 schematically shows a flow of the orientation change control of the particulate matter discharging device 130 by operating the automatic button 184, a flow of the particulate matter discharging control by operating the discharge button 185, a flow of the orientation change control of the particulate matter tank 113 and the particulate matter discharging device 130 by operating the manual button (cross button 181) for manual operation, and a flow of the particulate matter discharging control.

When the automatic button 184 is operated in a state where the particulate matter discharging device 130 is stopped in the storage posture, the automatic operation command is transmitted to the automatic transfer managing unit 1552, and then the automatic discharging transfer command is transmitted to the particulate matter discharging managing unit 156. In order to execute the automatic discharge transition command, the particulate matter discharge management unit 156 first outputs a discharge posture command and drives the rotation mechanism SM' to transition the particulate matter discharge device 130 from the storage posture to a non-interference discharge posture (for example, an arbitrary position between 80 degrees and 90 degrees).

Since the automatic interlock control described above is effective during execution of the automatic discharge transition command, even if the discharge button 185 is operated and the command for discharging the particulate matter is sent to the particulate matter discharge management unit 156, the particulate matter discharge management unit 156 prohibits the discharge of the particulate matter while the particulate matter discharge device 130 is located in the first discharge prohibition area. That is, until the extrudate discharge means 130 exceeds the first discharge prohibition area and reaches the dischargeable area, the extrudate discharge is prohibited. The configuration may be such that the command for discharging the particulate matter is cleared by prohibiting the discharge of the particulate matter, or the configuration may be such that the command for discharging the particulate matter is stored even if the discharge of the particulate matter is prohibited, and the command for discharging the particulate matter is executed at a stage when the particulate matter discharging device 130 exceeds the first discharge prohibition area, thereby discharging the particulate matter.

Further, in the execution of the automatic discharge transfer instruction, when the automatic button 184 is operated again, the execution of the automatic discharge transfer instruction is stopped, and if the discharge of the particulate matter is being performed at this time, the discharge of the particulate matter is continued.

When the automatic button 184 is operated in a state in which the particulate matter discharging apparatus 130 is stopped in a position other than the storage position, an automatic operation command is transmitted to the position change control module 155, and an automatic storage shift command is generated. When the automatic storage transfer command is executed, if the threshing box 113 is in a posture other than the descending posture, the automatic storage transfer command is temporarily held (one of the invalidation types), and the descending posture command is output to drive the box swinging mechanism TM' (shown by a broken line in fig. 14), so that the threshing box 113 is transferred to the descending posture. Next, the automatic storage and transfer command is released, and the storage posture command is output to drive the rotation mechanism SM' so that the particulate matter discharging device 130 is transferred to the storage posture. In a state where the particulate matter discharging device 130 is discharging the particulate matter, even if the automatic button 184 is operated, the automatic storage transfer command is not output and the particulate matter discharging is continued.

As described with reference to fig. 12, when the manual button serving as the third operation element including the cross button 181 is used, the orientation of the thresher tank 113 and the orientation of the thresher discharge device 130 can be changed manually. When a manual action instruction from the cross key 181 is transmitted to the posture-change control module 155, a manual rotation instruction or a manual swing instruction is generated. When the manual rotation command is executed, the rotation mechanism SM' is driven, and the orientation of the particulate matter discharging device 130 is changed. When the manual swing command is executed, the bin swing mechanism TM' is driven, and the orientation of the threshing bin 113 is changed. When the cross button 181 is operated during execution of the automatic discharge transfer command, the orientation of the threshing box 113 or the threshing object discharge device 130 is also manually changed. Further, in the case where the posture of the particulate matter discharging device 130 is manually changed using the cross key 181, the manual interlock control described above is effective, and therefore, if the posture of the particulate matter discharging device 130 is within the second discharge prohibition region, the particulate matter discharge is prohibited.

When the determination unit 1551 of the posture change control module 155 determines that there is a possibility of interference between the screen box 113 and the screen discharge device 130, execution of the posture change by the cross button 181 is prohibited.

(other embodiment mode of the second embodiment mode)

Hereinafter, another embodiment of the second embodiment will be described. The second embodiment and the other embodiments described above may be combined or replaced in various ways within a range not contradictory to each other.

(1) The functional block diagram of the control unit 105 shown in fig. 12 is for convenience of explanation, and the functional units shown in fig. 12 may be further divided or may be arbitrarily integrated. The control unit 105 may be divided into a plurality of units according to functions, or the functional units according to the present invention may be distributed to the control units 105.

(2) In the second embodiment described above, the remote operator 108 is a dedicated product, but instead, a smartphone or a tablet computer may be used as the remote operator 108 of the present invention by installing an appropriate application in the smartphone or the tablet computer.

(3) In the second embodiment described above, the tank swing mechanism TM 'and the rotation mechanism SM' are driven by cylinders, but the cylinders may be hydraulic cylinders or electric cylinders. Further, an electric motor or a hydraulic motor may be used as the drive source.

(4) In the second embodiment described above, the first discharge-prohibiting area is set in the range of 0 degrees to 80 degrees with respect to the storage posture, and the second discharge-prohibiting area is set in the range of 0 degrees to 30 degrees with respect to the storage posture, but the distance from the vehicle body end of the second discharge port varies depending on the length of the lateral conveying portion 132, and therefore, the ranges from the storage postures of the first discharge-prohibiting area and the second discharge-prohibiting area may be set in other angular ranges. Further, the posture of the particulate matter discharging device outside the first discharge prohibition region may not match the non-interference discharge posture. For example, the first discharge prohibition region may be overlapped with the non-interference discharge posture, or may be set on the storage posture side of the non-interference discharge posture. Of course, the non-interference discharge attitude does not necessarily have to be set in the range of 80 degrees to 90 degrees with respect to the storage attitude, and may be set appropriately in an angle range according to the vehicle body structure or the target working environment, or in a predetermined angle. Further, the first and second discharge-prohibition areas may be areas that can be changed by man, such as the range of the above-described rule.

(5) The layout of the devices described in the second embodiment is merely an example, and the layout of the engine 104, the radiator 115A, the radiator fan 115B, the thresher 112, the threshing box 113, and the like may be appropriately changed. Further, the threshing box 113 is not limited to being swung up toward the vehicle right side as in the second embodiment described above, and may be swung up toward the vehicle rear side or the vehicle left side, for example.

Description of the reference numerals

1: traveling vehicle body, 8: remote operator, 9: control unit, 12: threshing device, 13: threshing box, 13 a: discharge agitator cage, 14: chute, 18: first discharge portion, 18 a: first discharge port, 20: association mechanism, 21: telescopic link, 22: operation cable, 23: locking mechanism, 28: lock detection switch, 30: thresher discharge device, 31: longitudinal conveying section, 32: horizontal conveyance section, 33: second discharge portion, 33 a: second discharge port, 81: cross key (manual button), 84: auto button, 85: discharge button (discharge switch), 91: input signal processing section, 92: device control unit, 93: tank position calculation unit, 94: ejector position calculation unit, 95: threshing material discharge control unit, 96: discharge mode selection unit, SM: rotary mechanism, SU 1: swing angle detection unit, SU 2: rotation angle detection unit, TM: case swing mechanism, X: horizontal axis (horizontal axis), Y: longitudinal axis, 101: traveling vehicle body, 110: a harvesting portion, 112: threshing device, 113: threshing box, 115A: heat sink, 115B: radiator fan, 116: wall plate structure, 117: air flow hole, 118: first discharge port, 130: thresher discharge device, 131: longitudinal conveying section, 132: horizontal conveyance section, 133: second discharge port (discharge port), 105: control unit, 151: input signal processing section, 152: device control unit, 153: tank position calculation unit, 154: ejector position calculation unit, 155: posture change control module, 1551: determination unit, 1552: automatic transfer management unit, 156: a thresher discharge management unit, 108: remote operator, 181: cross key (manual button; third operation member), 184: automatic button (first operation member), 185: discharge button (second operation member), 109A: rocking angle detection means (first detection unit), 109B: rotation angle detection means (second detection unit), SM': rotation mechanism, TM': case swinging mechanism, X': horizontal axis (horizontal axis), Y': longitudinal axis (rotation axis).

Claims

1. A harvester is provided with:

a threshing device for threshing the reaped objects reaped by the reaping part;

a threshing box for storing the threshed grain obtained by the threshing device;

a first discharge unit having a first discharge port provided in a portion of the threshing box that is on a lower side when the threshing box is in the raised position;

a box swinging mechanism for swinging the threshing box up and down between a descending posture and an ascending posture around a horizontal axis;

a particulate matter discharging device having a vertical conveying section connected to the particulate matter tank, a horizontal conveying section connected to an upper end portion of the vertical conveying section, and a second discharging section connected to a tip end portion of the horizontal conveying section and having a second discharge port;

a rotating mechanism for rotating the threshing material discharging device around a longitudinal axis between a storage posture in which the horizontal conveying part is positioned above the threshing material box and a discharging posture in which the horizontal conveying part extends out of the machine body;

a discharge mode selector that selects a first discharge mode in which the particulate matter stored in the particulate matter tank is discharged from the first discharge port and a second discharge mode in which the particulate matter stored in the particulate matter tank is discharged from the second discharge port;

a user operation device that outputs a particulate matter discharge preparation command for preparing for the discharge of the particulate matter from the particulate matter tank; and

and a particulate matter discharge control unit configured to rotate the particulate matter discharge device to the discharge posture in response to the particulate matter discharge preparation command when the first discharge mode is selected by the discharge mode selection unit.

2. The harvester according to claim 1, comprising:

a chute vertically swingable between a closed posture facing the first discharge port and closing the first discharge port and a use posture swingable downward from the closed posture to open the first discharge port and to allow the flow-down guide of the particulate matter; and

a linkage mechanism that swings the chute toward the use posture side in conjunction with the swinging of the threshing box toward the ascending posture side and swings the chute toward the lock posture side in conjunction with the swinging of the threshing box toward the descending posture side,

the linkage mechanism is configured not to cause the swinging of the chute to be interlocked with the swinging of the threshing box during a period from the descending posture to a discharge preparation posture between the descending posture and the ascending posture,

the particulate matter discharge control unit rotates the particulate matter discharging device to the discharge posture in response to the particulate matter discharge preparation command when the first discharge mode is selected by the discharge mode selection unit, and then raises the particulate matter tank to the discharge preparation posture.

3. The harvester of claim 1 or 2,

the particulate matter discharge control unit rotates the particulate matter discharge device to the discharge posture in response to the particulate matter discharge preparation command when the second discharge mode is selected by the discharge mode selection unit.

4. The harvester of claim 3,

the particulate matter discharge control unit rotates the particulate matter discharge device to the discharge posture in response to the particulate matter discharge preparation command when the second discharge mode is selected by the discharge mode selection unit, and then raises the particulate matter tank to a preset posture.

5. The harvester of any one of claims 1, 2, 4,

a lock mechanism having a lock position for prohibiting the first discharge port from being opened and an unlock position for allowing the first discharge port to be opened,

the discharge mode selection unit detects the unlock position of the lock mechanism to select the first discharge mode, and detects the lock position of the lock mechanism to select the second discharge mode.

6. The harvester of any one of claims 1, 2, 4,

a discharge switch for outputting an ON/OFF command for turning ON/OFF the power transmission to the thresher discharge device,

when the first discharge mode is selected by the discharge mode selection unit, the power transmission command output by the discharge switch is invalidated.

7. The harvester of any one of claims 1, 2, 4,

the user operation device has a function of outputting a discharge end command for ending the processing of discharging the threshing material from the threshing box,

the particulate matter discharge control unit swings the particulate matter discharging device from the ascending posture to the descending posture in response to the discharge end command, and then rotates the particulate matter discharging device from the discharging posture to the storing posture, regardless of the discharge mode selected by the discharge mode selecting unit.

8. A harvester is provided with:

a threshing device for threshing the reaped objects reaped by the reaping part;

a first discharge device connected to the first tank and discharging the first slurry stored in the first tank from a discharge port formed at a tip end of the first discharge device;

a rotation mechanism that rotates the particulate matter discharging device between a storage posture in which the discharge port is close to a vehicle body and a non-interference discharging posture in which the particulate matter box can swing so as not to interfere with the particulate matter discharging device;

a first detection unit that detects the posture of the threshing box;

a second detection unit that detects a posture of the particulate matter discharge device;

a first operation member that gives an automatic operation command for automatically changing the orientation of the particulate matter discharging device by the rotating mechanism;

a second operation member that gives a command to discharge the particulate matter, the command being for discharging the particulate matter and being realized by the particulate matter discharging device;

a rotation operation tool for giving a manual operation command for manually changing the orientation of the particulate matter discharging device by the rotation mechanism,

a lifting operation member for giving a manual lifting operation command for manually changing the posture of the threshing box by the box swinging mechanism,

an automatic transfer management unit that outputs an automatic discharge transfer command for causing the particulate matter discharging device to transfer to the non-interference discharging posture, based on the automatic operation command; and

a particulate matter discharge management unit that prohibits the particulate matter discharge by the particulate matter discharge device when the particulate matter discharge device is in a posture set within a first discharge prohibition area between the storage posture and the non-interference discharge posture during execution of the automatic discharge transition command, and prohibits the particulate matter discharge by the particulate matter discharge device when the particulate matter discharge device is in a posture set within a second discharge prohibition area between the storage posture and the non-interference discharge posture during execution of the rotational manual operation command,

the first discharge prohibition area and the second discharge prohibition area are set to areas starting from the storage posture, and the second discharge prohibition area is narrower than the first discharge prohibition area.

9. The harvester of claim 8,

the posture of the particulate matter discharging device outside the first discharge prohibition region coincides with the non-interference discharge posture.

10. The harvester of claim 8 or 9,

the first discharge prohibition area extends between the storage posture and a posture separated by 45 degrees or more from the storage posture with a rotation axis of the particulate matter discharge device as a center,

the second discharge prohibition area extends between the storage posture and a posture separated from the storage posture by 45 degrees or less about the rotation axis.

11. The harvester of claim 8 or 9,

the first discharge prohibition area and the second discharge prohibition area are disposed between the storage posture and a posture separated from the storage posture by 30 degrees or more about a rotation axis of the particulate matter discharge device.

12. The harvester of claim 8 or 9,

the automatic transfer management unit outputs the automatic discharge transfer command based on the automatic operation command when the particulate matter discharging device is in the storage posture, and outputs an automatic storage transfer command for transferring the particulate matter discharging device to the storage posture based on the automatic operation command when the particulate matter discharging device is not in the storage posture,

the automatic storage transfer command is valid when the threshing box is in the lowered position, and invalid when the threshing box is not in the lowered position.