JP2009171925A - Combined harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combined harvester preventing interference from circumference in elongating/bending of a folding type unloading auger in the combined harvester capable of electrically switching a folding type unloading auger on an elongated position or a bent position. <P>SOLUTION: Provided is the combined harvester comprising a horizontal auger 7b which moves between at a bent position Q1 where a second horizontal auger 7b2 locates in a parallel configuration to a first horizontal auger 7b1 and at an elongated position Q2 where the second horizontal auger 7b2 loactes in a coaxial configuration to the first horizontal auger 7b1 by the rotation of the second horizontal auger 7b2 on the top end side around a rotating axis 330 installed on the side of a first horizontal auger 7b1 on the base end side. A bending/stretching drive mechanism X3 makes the horizontal auger 7b2 move between the winding position Q1 and the extension position Q2. The expansion and contraction driving mechanism X3 is controlled so that the second horizontal auger 7b2 moves between the bent position Q1 and the elongated position Q2 only at the time when the horizontal auger 7b is located at the housing position P2. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a combine having a discharge auger that discharges grain stored in a Glen tank to the outside, and more particularly to a combine that can switch the discharge auger to either an extended position or a refractive position.

As a structure of the discharge auger that discharges the grain, a vertical auger that is erected substantially vertically at the rear part of the Glen tank and whose base end part communicates with the rear lower part of the Glen tank, and a base end part that is a tip part of the vertical auger A horizontal auger that can move between a predetermined discharge operation position and a predetermined storage position where the grain can be discharged out of the machine by rotating around the axis of the vertical auger in a communicating state, A first horizontal auger on the part side and a second horizontal auger on the tip side, and the second horizontal auger is rotated about a rotation axis disposed on the side of the first horizontal auger, A folding type having a refraction position where the first and second augers are arranged in parallel and a transverse auger movable between an extension position where the first and second augers are arranged coaxially. A combine with a discharge auger is known.
In such a combine, the second lateral auger on the distal end side can bend and stretch with respect to the first lateral auger on the proximal end side, so that it is in the extended position during the grain discharging operation, while in the cutting operation or on the road When traveling, it can be in a refractive position.

In the above-described folding-type discharge auger, if the movement between the extension position and the refraction position is manually performed, a considerable force is required, so that the burden on the operator is large. On the other hand, the structure which electrically performs the bending / extending operation | movement of a horizontal auger is known (for example, refer patent document 1).
In the combine described in Patent Literature 1, when the grain discharging operation is started, the horizontal auger is turned around the axis of the vertical auger from the predetermined storage position to the predetermined discharging operation position while maintaining the bending position. The second lateral auger on the distal end side automatically extends and is positioned at the extended position. When the grain discharging operation is finished, the horizontal auger is automatically positioned from the extended position to the refracted position, and then pivoted about the axis of the vertical auger and positioned at the storage position. The end of the grain discharging operation is automatically detected by disengaging the discharging clutch.

As described above, in the configuration of Patent Document 1, the horizontal auger is swung around the axis of the vertical auger while the horizontal auger holds the refraction position. Therefore, the following problems may occur.
That is, first, since it is difficult to grasp the position of the discharge port provided at the distal end portion of the horizontal auger (second horizontal auger) at the time of extension from the horizontal auger at the bending position, the swiveling position around the axis of the vertical auger can be adjusted. Have difficulty.
Further, the bending / extension operation range of the second horizontal auger on the distal end side is not constant with respect to the traveling machine body during extension / refraction (the rotation axis of the second horizontal auger with respect to the traveling machine body according to the turning position around the axis line of the vertical auger) Therefore, depending on the turning position around the axis of the vertical auger, when the second horizontal auger is extended / refracted, a glen tank or the like having a height substantially the same as or higher than the horizontal auger There may be cases where the second lateral auger interferes with other components of the combine.
JP 2005-160345 A

The present invention has been made in view of the above prior art, and in a combiner that can electrically switch a folding-type discharge auger to either an extended position or a refractive position, when the discharge auger is extended / refractive, An object is to provide a combine that can prevent interference.
Further, the present invention can easily grasp the position of the discharge port during the discharge operation when the discharge auger is swiveled in the combine that can electrically switch the folding type discharge auger to either the extended position or the bent position. Another purpose is to provide a combine that can be used.

  In order to achieve the above object, a combine according to the present invention is provided with a vertical auger standing substantially vertically at the rear part of the Glen tank and having a base end part communicating with the rear lower part of the Glen tank, and a base end part of the vertical auger. A horizontal auger that can be moved between a predetermined discharging operation position and a predetermined storage position where the grain can be discharged out of the machine by turning around the axis of the vertical auger in a state of communicating with the tip of And a first horizontal auger on the proximal end side and a second horizontal auger on the distal end side, and the second horizontal auger rotates about a rotation axis disposed on the side of the first horizontal auger. Thus, the second lateral auger can move between a bending position where the second lateral auger is disposed in parallel with the first lateral auger and an extended position where the second lateral auger is disposed coaxially with respect to the first lateral auger. Move the auger and the second lateral auger between the bending position and the extended position A bending drive mechanism, a turning drive mechanism for turning the horizontal auger about the axis of the vertical auger to move between the discharge work position and the storage position, and the bending drive mechanism and the turning drive mechanism are controlled. And a control device configured to move the second lateral auger between the bending position and the extended position only in a state where the lateral auger is positioned at the storage position. The bending / extension driving mechanism is controlled.

According to the above-described combine, when the horizontal auger is positioned at the storage position and the second horizontal auger is positioned at the bending position where the second horizontal auger is arranged in parallel with the first horizontal auger, the control is performed when the grain discharging operation is performed. The device extends by rotating the second horizontal auger on the distal end side about the rotation axis substantially orthogonal to the first horizontal auger via the bending and stretching drive mechanism only in a state where the horizontal auger is in the storage position. Allow extension operation to extend to position.
Further, when the horizontal auger is stored after the grain discharging operation is completed, the control device rotates the entire horizontal auger around the axis of the vertical auger from the discharging operation position to the storing position via the turning drive mechanism. Only in the state of being swung, the refraction operation of allowing the second lateral auger to rotate about the rotation axis with respect to the first lateral auger via the bending / extension driving mechanism and refract to the refraction position is allowed.
That is, when the horizontal auger turns from one of the discharge work position and the storage position to either one, the second horizontal auger is always positioned at the extended position.

In this way, since the second horizontal auger is extended or refracted only when the horizontal auger is located at the storage position, the bending / extension operation range with respect to the traveling machine body is always constant, and interference with the surroundings is possible even when turning to any position. There is no need to worry.
Furthermore, since the entire horizontal auger is swung while the second horizontal auger is located at the extended position, it is easy to grasp the position of the discharge port located at the tip of the horizontal auger.
Therefore, workability in the grain discharging operation can be further improved.

  Preferably, the horizontal auger is configured to be swingable in a vertical direction with a base end portion as a fulcrum, and further includes a vertical swing drive mechanism for swinging the horizontal auger in the vertical direction. The bending / extension drive mechanism is configured to control the second lateral auger to move between the bending position and the extended position only when the lateral auger is raised to a predetermined position.

In this case, the control device moves the second horizontal auger to the second horizontal auger in a state where the entire horizontal auger is in the storage position with respect to the turning direction about the axis of the vertical auger and the horizontal auger is raised to a predetermined position by the vertical swing drive mechanism. Elongate / refract one horizontal auger.
That is, at the start of the grain discharging operation, the control device raises the horizontal auger to the predetermined position, then extends the second horizontal auger relative to the first horizontal auger, and then turns the entire horizontal auger. At the end of the grain discharging operation, the control device turns the entire horizontal auger before or after turning the entire horizontal auger to raise the horizontal auger to the predetermined position, and then moves the second horizontal auger to the first horizontal auger. To refract.
Thus, by bending and extending with the lateral auger raised, interference with the surroundings can be further prevented.

  As a preferred aspect, after the second lateral auger is moved from the bending position to the extended position via the bending / extension driving mechanism, the lateral auger extended via the turning drive mechanism is turned around the axis of the vertical auger. The work starting movement to be positioned at a predetermined discharge work position, or the lateral auger is swung around the axis of the vertical auger via the swivel drive mechanism to be positioned at the predetermined storage position, and then the bending drive There may be provided an auto switch that can be manually operated to start any one of the work end movements for moving the second lateral auger from the extended position to the refracted position via a mechanism.

In this case, when the horizontal auger is positioned at the storage position and the second horizontal auger is positioned at the bending position where it is arranged in parallel with the first horizontal auger, the horizontal auger is moved to the storage position. The operation start movement is performed by operating the auto switch in the positioned state. That is, the control device first extends the lateral auger by rotating the second lateral auger on the distal end side about the rotational axis substantially perpendicular to the first lateral auger via the bending and extending drive mechanism. After the second horizontal auger is extended to the extended position where it is coaxially arranged with respect to the first horizontal auger on the base end side, the control device continues to move the entire horizontal auger through the swivel drive mechanism. It is swung around the axis line of a vertical auger that is erected substantially vertically at the rear part and moved to a predetermined discharge work position.
Further, when the horizontal auger is stored after the grain discharging operation is completed, the operation end movement is performed by operating the auto switch in a state where the horizontal auger is positioned at the discharging operation position. That is, the control device first turns the entire horizontal auger around the axis of the vertical auger via the turning drive mechanism to move from the discharge work position to the storage position. After the entire horizontal auger is positioned at the storage position, the control device subsequently rotates the second horizontal auger about the rotation axis with respect to the first horizontal auger via the bending and extending drive mechanism. The auger is refracted and the second lateral auger is positioned at the refractive position.
In this way, by manually operating the auto switch, the horizontal auger is positioned at the storage position and the second horizontal auger is positioned at the bending position, and the horizontal auger is positioned at the discharging work position. Since the switching with the grain discharging operation state in which the second horizontal auger is located at the extended position can be performed continuously in one operation, the labor of the operator can be further reduced.

  More preferably, the auto switch is a remote control device provided in the vicinity of the driver's seat or in the horizontal auger, and is provided in the remote control device having at least an auger operation switch for turning the horizontal auger about the axis of the vertical auger. The second lateral auger is configured to stop the movement to the bending position or the extension position when any of the switches provided on the remote control device is operated while the second lateral auger is moved to the bending position or the extension position. Is done.

In this case, when the second auger is located in the extended position, the auger operation switch provided in the vicinity of the driver's seat or in the remote control device provided in the horizontal auger is operated, so that the horizontal auger is Start turning around the axis.
Here, during the bending operation of the second lateral auger, when any switch provided in the vicinity of the driver's seat or in the remote control device provided in the lateral auger is operated, regardless of the type of the operated switch, The bending / extending operation is interrupted.
In this way, if one of the switches provided on the remote control device is operated in an emergency such as when a person has entered the rotation range of the second horizontal auger during the bending operation of the second horizontal auger, Since the movement of the second horizontal auger is stopped, there is no need to operate the switch after visually confirming the type of switch provided on the remote control device, and the second horizontal auger can be stopped more quickly. The safety of the can be further increased.

  As another preferred aspect, a bending / extending switch for starting the movement of the second lateral auger to the bending position or the extending position via the bending / extension driving mechanism is provided, and the bending / extending switch is a remote controller provided near the driver's seat A remote control device having at least an auger operation switch for turning the horizontal auger about an axis of the vertical auger, and the remote control device during the movement of the second horizontal auger to the bending position or the extension position When any one of the switches provided in is operated, the movement to the refraction position or the extension position may be stopped.

In this case, when the bending / extending switch provided in the remote control device provided in the vicinity of the driver's seat is operated, the second lateral auger starts the bending / extending operation, and the second lateral auger is in the extended position. Similarly, when the auger operation switch provided in the remote control device is operated, the horizontal auger starts to turn around the axis of the vertical auger.
Here, when any switch provided in the remote control device is operated during the bending operation of the second lateral auger, the bending operation is interrupted regardless of the type of the operated switch.
In this way, if one of the switches provided on the remote control device is operated in an emergency such as when a person has entered the rotation range of the second horizontal auger during the bending operation of the second horizontal auger, Since the movement of the second horizontal auger is stopped, there is no need to operate the switch after visually confirming the type of switch provided on the remote control device, and the second horizontal auger can be stopped more quickly. The safety of the can be further increased.

According to the combine according to the present invention, since the second horizontal auger is extended or refracted only when the horizontal auger is located at the storage position, the bending / extending operation range with respect to the traveling machine body is always constant, and even when turning to any position. There is no need to worry about interference with the surroundings.
Furthermore, since the entire horizontal auger is swung while the second horizontal auger is located at the extended position, it is easy to grasp the position of the discharge port located at the tip of the horizontal auger.
Therefore, workability in the grain discharging operation can be further improved.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.
1 to 3 are a side view, a front view, and a transmission schematic diagram of a combine 1 according to an embodiment of the present invention.

  As shown in FIGS. 1 to 3, the combine 1 includes a traveling machine body 2, an engine 9 as a drive source supported by the traveling machine body 2, and a pair of left and right traveling devices ( In this embodiment, a crawler type traveling device) 10, a traveling transmission 100 that changes the rotational power from the engine 9 and outputs it to the pair of traveling devices 10, and the traveling vehicle body in front of the traveling vehicle body 2. 2, a feed chain device 20 that transports the cereals harvested by the harvesting device 30 backward on the left side of the traveling machine body 2, and the feed chain device 20. The threshing device 40 disposed in the left part of the traveling machine body 2 and the threshing device 40 are disposed below the threshing device 40 so as to perform the threshing process. The constant speed power is operatively input from the swing sorting device 50 and the engine 9 and the vehicle speed tuned power is operatively input from the following traveling side HST 120 of the traveling transmission 100, and the reaping device 30, the feed A work machine system transmission 200 that outputs rotational power toward a work machine including the chain device 20, the threshing device 40, and the swing sorting device 50, and a driver's seat 5 disposed in the right front portion of the traveling machine body 2. A grain tank 6 for storing the grains selected by the swing sorting device 50, the grain tank 6 disposed behind the driver's seat 5 and extending from the rear of the grain tank 6. , Inheriting the drained auger 7 for discharging the grain in the Glen tank 6 to the outside and the threshed waste from the feed chain device 20, and transporting the waste to the rear And a straw discharge conveying device 60.

Here, the transmission structure in the combine 1 will be described.
The transmission structure of the combine 1 is connected to the traveling system transmission 100 inserted in the traveling system transmission path from the engine 9 to the traveling device 10 and the working machine system transmission path from the engine 9 to the working machine. The work machine transmission 200 is inserted.

  As shown in FIG. 3, the traveling transmission 100 is composed of a traveling side HST 120 and a turning side HST 130 operatively connected to the engine 9 and a pair of traveling system output shafts 55a, A traveling system transmission mechanism (not shown) that transmits to 55b and a transmission case 110 that houses the traveling system transmission mechanism and supports the traveling side HST 120 and the turning side HST 130 are provided.

  The work machine transmission 200 is operatively connected to a counter case 210, a constant speed input shaft 220 operatively connected to the engine 9 via a threshing clutch mechanism 45, and the constant speed input shaft 220. A threshing output shaft 221 that outputs rotational power toward the barrel drive shaft 41 of the apparatus 40, a constant speed transmission shaft 223 operatively connected to the constant speed input shaft 220, and a vehicle speed synchronized output from the traveling system transmission mechanism. Vehicle speed tuning input shaft 224, speed change transmission shaft 225, vehicle speed tuning input shaft 224 and vehicle speed tuning side speed change mechanism 240 for shifting between speed change transmission shaft 225, constant speed speed transmission shaft 223 and A constant speed transmission mechanism 250 that shifts between the transmission transmission shafts 225 and a cutting output shaft 22 that is operatively connected to the transmission transmission shaft 225 and that outputs to the cutting unit 30. And an FC transmission mechanism 280 that synthesizes the rotational power of the constant speed transmission shaft 223 and the rotational power of the speed change transmission shaft 225, and is operatively connected to the output portion of the FC speed change mechanism 280 toward the feed chain portion 20. And a feed chain output shaft 227 for outputting rotational power.

Constant-speed input pulleys 201 and 701 are attached to the constant-speed input shaft 220. From the engine 9 via constant-speed input belts 202 and 702 wound around the constant-speed input pulleys 201 and 701, respectively. Constant speed rotational power is input to the work machine transmission 200 and the discharge conveyors 72, 73, 74 (described later) of the discharge auger 7.
A threshing output pulley 203 is attached to the threshing output shaft 221, and constant speed rotational power from the engine 9 is supplied to the threshing unit 40 via a threshing output belt 204 wound around the threshing output pulley 203. To communicate.

  In the present embodiment, the threshing clutch mechanism 45 engages or interrupts power transmission from the engine 9 to the constant speed input shaft 220 by applying / releasing tension to the constant speed input belt 202. Configured to get.

The constant speed transmission shaft 223 has one end operatively connected to the threshing output shaft 221 and the other end projecting outward from the counter case 210 to the counter case 210 along the vehicle width direction. It is supported.
The other end of the constant speed transmission shaft 223 forms a swing sorting output shaft 228 that outputs a constant speed rotational power toward the swing sorting device 50.
A swing output pulley 205 is attached to the swing sorting output shaft 228 (the other end of the constant speed transmission shaft 223).

  In the present embodiment, the auger clutch mechanism 71 applies tension to / releases the constant speed input belt 702 from the engine 9 to the discharge conveyors 72, 73, 74 of the discharge auger 7. The power transmission is configured to be engaged or interrupted.

Next, the configuration of the discharge auger 7 in the combine 1 will be described.
The discharge auger 7 is erected substantially vertically at the rear part of the Glen tank 6 and has a base end part communicating with the rear lower part of the Glen tank 6 and a vertical auger 7a substantially perpendicular to the vertical auger 7a (in the traveling machine body 2). A horizontal auger 7b that is pivotable about the axis of the vertical auger 7a and swings in the vertical direction in a state where the base end portion is in communication with the distal end of the vertical auger 7a. It is provided in the vicinity of the tip of 7b, and is provided with a discharge case 7c that discharges the grains downward.

More specifically, the vertical auger 7a is provided in the traveling machine body 2 so as to be able to turn around the axis of the vertical auger 7a, and the vertical auger 7a turns around the axis of the vertical auger 7a, thereby 7b is also turned around the axis of the vertical auger 7a integrally with the vertical auger 7a.
FIG. 4 is a top view illustrating a turning region of the horizontal auger 7b in the combine 1 of FIG.
As shown in FIG. 4, when the horizontal auger 7b is turned around the axis of the vertical auger 7a, the horizontal auger 7b can be moved between a predetermined discharge position P1 and a predetermined storage position P2 where the grain can be discharged outside the machine. Has been.
In the present embodiment, the discharge work position P1 and the storage position P2 define only the swivel component (the position of the horizontal auger 7b in a top view) of the horizontal auger 7b around the axis of the vertical auger 7a. It does not include the vertical component. That is, in the present embodiment, if the horizontal auger 7b is positioned on a rest portion 8a of the auger rest 8, which will be described later, even if the horizontal auger 7a is not in contact with the rest portion 8a, it is positioned at the storage position P2. It is written as
The combine 1 has a turning drive mechanism X1 that turns the horizontal auger 7b together with the vertical auger 7a around the axis of the vertical auger 7a. The turning drive mechanism X1 in this embodiment is shown in FIG. Thus, a spur gear 75 externally fitted and fixed around the axis of the vertical auger 7 a, an auger turning motor 76, a spur gear 77 fitted on the rotating shaft of the auger turning motor 76 and meshing with the spur gear 75, have. By rotating the auger turning motor 76 forward / reversely, the horizontal auger 7b can be integrally turned left and right around the vertical auger 7a. The auger turning motor 75 of the present embodiment is realized by, for example, a servo motor, and the turning angle of the horizontal auger 7b is a resolver or rotary potentiometer that detects the turning angle of the auger turning motor 75 of the turning drive mechanism X1. It can be detected by a turning angle sensor 91 (see FIG. 8 described later) constituted by a rotary encoder or the like.
Further, the horizontal auger 7b of the present embodiment is configured to be swingable in the vertical direction with the base end portion as a fulcrum, and includes a vertical swing drive mechanism X2 that swings the horizontal auger 7b in the vertical direction. The vertical swing drive mechanism X2 can be realized by a known actuator. Further, the rising angle of the horizontal auger 7 b can be detected by the same configuration as the turning angle sensor 91.

Further, the lower surface of the discharge case 7c provided at the tip of the horizontal auger 7b is open, and a cylindrical sleeve 7d is attached along the edge of the opening. The sleeve 7d is formed of a flexible resin or the like, and the lower end of the sleeve 7d is a grain outlet 7e.
By comprising in this way, it is possible to concentrate and discharge | emit the grain which fell from the lower surface of the discharge | emission case 7d in the vicinity right under the grain discharge port 7e, without scattering around.

In the present embodiment, in order to guide the grains accumulated in the grain tank 6 to the grain outlet 7e of the discharge auger 7, a screw type lower conveyor disposed along the front-rear direction at the bottom of the grain tank 6. 72, a vertical conveyor 73 disposed in the vertical auger 7a while being operatively connected to the lower conveyor 72, and a horizontal conveyor disposed within the horizontal auger 7b while being operatively connected to the vertical conveyor 73 74 (see FIG. 3). By rotating the discharge conveyors 72, 73, 74 using the rotational power of the engine 9, the grains in the grain tank 6 are discharged from the grain discharge port 7 e of the discharge auger 7.
Preferably, the Glen tank 6 is inclined such that the substantially central portion in the left-right direction at the bottom is lower than both left and right end portions, and the lower conveyor 73 is disposed at the substantially central portion in the left-right direction. Thereby, the grain in the Glen tank 6 can be discharged | emitted outside efficiently.

An auger rest 8 that supports a lateral auger 7 b of the discharge auger 7 is provided on the rear side of the driver seat 5. The auger rest 8 has a rest portion 8 a that holds the horizontal auger 7 b and a support portion 8 b that has a distal end portion that supports the rest portion 8 a and a proximal end portion that is supported by the traveling machine body 2. The rest portion 8a is formed in a substantially U shape when viewed from the front, and is configured such that the horizontal auger 7a of the discharge auger 7 can be placed thereon. An elastic member such as rubber or resin is attached to the upper surface (inner surface formed in a U-shape) of the rest portion 8a, and generates a vibration sound during traveling even when the horizontal auger 7b is placed. Is prevented.
In the present embodiment, the support column 8 b is a square pipe whose upper half is slightly bent to the left side of the combine 1 in a front view, and is erected from the traveling machine body 2. The state where the horizontal auger 7b is positioned on the auger rest 8 is stored in the control device 400 (see FIG. 8 described later) as the storage position P2 regarding the turning direction of the horizontal auger 7b.

Here, the horizontal auger 7b in this embodiment has a first horizontal auger 7b1 on the base end side and a second horizontal auger 7b2 on the distal end side, and the second horizontal auger 7b2 is the first horizontal auger 7b1. The second horizontal auger 7b2 is arranged in parallel to the first horizontal auger 7b1 by rotating around the rotation axis 330 disposed on the side of the first horizontal auger 7b1 (a broken line in FIGS. 1 and 4). And the second horizontal auger 7b2 are movable between an extended position Q2 (shown by a solid line in FIGS. 1 and 4) which is coaxial with the first horizontal auger 7b1. And the front-end | tip part of the said 1st horizontal auger 7b1 and the base end part of the said 2nd horizontal auger 7b2 are connected, and the said 2nd horizontal auger 7b2 is moved between the said refractive position Q1 and the said expansion | extension position Q2. A bending / extending drive mechanism X3 is provided at a connecting portion between the first lateral auger 7b1 and the second lateral auger 7b2.
In the present embodiment, the axis of the rotating shaft 330 is positioned in the vertical direction with respect to the traveling machine body 2 when the lateral auger 7 b is in a horizontal state with respect to the traveling machine body 2.

The bending / extension drive mechanism X3 of the present embodiment starts to rotate the second lateral auger 7b2 at a predetermined rotational speed, and then the second lateral auger 7b2 is completely moved to the bending position Q1 or the extended position Q2. When the previous predetermined position is passed, it is controlled to rotate at a speed lower than the rotation speed.
Specifically, in the control device 400 to be described later, a predetermined speed is measured until a predetermined time elapses from the start of driving of the bending / extension driving mechanism X3 by an external timer or an internal clock (not shown). The second lateral auger 7b2 is stopped at the refraction position Q1 or the extended position Q2 by performing a speed increase control until the predetermined speed is reached, and performing a constant speed control after reaching a predetermined speed, and performing a deceleration control after a predetermined time has elapsed.
Alternatively, instead of measuring time by a timer or the like, a bending / extension position sensor 92 (see FIG. 8 described later) for detecting that the second lateral auger 7b2 is located at a predetermined position before the movement may be provided. The bending / extending position sensor 92 may detect a rotation angle of the second horizontal auger 7b2 around the rotation axis 330, or a position where a signal can be transmitted when the second horizontal auger 7b2 is positioned at the predetermined position. It may be configured as a sensor.

  5 and 6 show a side view and a plan view of the vicinity of the connecting portion between the first horizontal auger 7b1 and the second horizontal auger 7b2 when the second horizontal auger 7b2 is located at the extended position Q2. 7 and 8 are a plan view and a side sectional view of the bending / extension driving mechanism X3 in the vicinity of the connecting portion of the first horizontal auger 7b1 and the second horizontal auger 7b2 when the second horizontal auger 7b2 is located at the bending position Q1. Indicates.

Details will be described in order.
As shown in FIGS. 5 and 6, the first horizontal auger 7b1 and the second horizontal auger 7b2 are a flange 350 formed on the outer periphery of the distal end of the first horizontal auger 7b1 and a proximal end of the second horizontal auger 7b2. The flanges 340 formed on the outer peripheries of the parts are connected together.
As shown in FIGS. 5 to 8, upper and lower support stays 360 and 370 protruding to the side (left side) are fixed to the upper and lower portions of the outer periphery of the front end portion of the first horizontal auger 7 b 1. The rotating shaft 330 is rotatably supported at the front ends of the support stays 360 and 370 via bearings. Further, upper and lower arms 380 and 390 projecting in the same direction as the upper and lower support stays 360 and 370 are formed on the upper and lower portions of the outer periphery of the base end portion of the second horizontal auger 7b2, and the upper and lower arms 380 and 390 are A front end portion is disposed between the upper and lower support stays 360 and 370 and is pivotally supported on the rotation shaft 330.
Thereby, the first horizontal auger 7b1 and the second horizontal auger 7b2 are connected to each other so as to be relatively rotatable, and the second horizontal auger 7b2 can be refracted or extended with respect to the first horizontal auger 7b1. Thus, when the horizontal auger 7b is not used (when the grain is not discharged), the second horizontal auger 7b2 is refracted with respect to the first horizontal auger 7b1, and the first horizontal auger 7b1 and the second auger 7b2 are bent. The second horizontal auger 7b2 is extended with respect to the first horizontal auger 7b1 when in use (at the time of grain discharging operation), being located at the refractive position Q1 arranged in parallel (FIGS. 7 and 8). The horizontal auger 7b1 and the second horizontal auger 7b2 can be positioned at the extended position Q2 where they are coaxially arranged (FIGS. 5 and 6).

  The horizontal conveyor 74 is composed of screw-type discharge conveyors (not shown) inserted into the first horizontal auger 7b1 and the second horizontal auger 7b2, respectively, and the second horizontal auger 7b2 is located at the extended position. When it does, it drives so that the grain sent by the vertical conveyor 73 in the said vertical auger 7a may be conveyed toward the grain discharge port 7e.

As shown in FIGS. 7 and 8, at the connecting portion between the first horizontal auger 7b1 and the second horizontal auger 7b2, the second horizontal auger 7b2 is rotated about the rotation axis 330, thereby the first horizontal auger 7b1. A bending / extension driving mechanism X3 is provided to refract or extend the lens. The bending / extending drive mechanism X3 is composed of a rotating actuator and a driving body attached to the first lateral auger 7b1, a driven body attached to the second lateral auger 7b2, and the like.
In the present embodiment, the bending / extension driving mechanism X3 includes a motor 510 that functions as a rotating actuator, a worm 520 that functions as a driving body, a worm wheel 530 that functions as a driven body, the worm 520 and the worm wheel 530. A drive case 540 that is internally provided and to which the motor 510 is fixed, and a drive arm 550 that connects the rotating shaft 330 and the outer peripheral portion of the second lateral auger 7b2.

  The drive case 540 is disposed and supported between the upper and lower support stays 360 and 370 of the first horizontal auger 7b1, and is connected to a rotation shaft 330 that connects the second horizontal auger 7b2 and the first horizontal auger 7b1. It is pivotally supported. In the drive case 540, the worm 520 is interlocked with the output shaft protruding from the motor 510, and the worm wheel 530 is fixed to the upper and lower central portions of the rotating shaft 330. The worm 520 and the worm wheel 530 are fixed. Are engaged.

  Further, one end of the drive arm 550 is fixed to the upper end of the rotating shaft 330, and the other end of the drive arm 550 and a support stay 560 fixed to the outer peripheral portion of the second horizontal auger 7b2 are shaft bodies. Are detachably connected by a connecting pin 570. The connection pin 570 is detachably fitted into holes 550a and 550b provided in the drive arm 550 and the support stay 560, respectively. The connection with the stay 560, that is, the second lateral auger 7b2, can be released. Therefore, when the motor 510 of the bending / extension driving mechanism X3 fails or a malfunction such as biting occurs in the driving case 540, the second lateral auger 7b2 can be manually bent and extended by releasing this connection. it can.

Next, the lock mechanism 660 for securely holding the second lateral auger 7b2 at the extended position Q2 will be described.
In this embodiment, as shown in FIGS. 5 and 6, the lock lever 700 is provided on the opposite side of the bending / extension driving mechanism X2 with respect to the auger axis at the connecting portion between the first horizontal auger 7b1 and the second horizontal auger 7b2. Is arranged substantially parallel to the axial direction of the first horizontal auger 7b1. A screw portion is formed at the base end portion of the lock lever 700, and nuts 720 and 730 are screwed and fixed to the screw portion while being slidably inserted into a through hole formed in the support member 710. Has been. A compression spring 740 is interposed on the threaded portion between the nut 730 and the support member 710 via a washer.

  The support member 710 is pivotally supported around a support shaft 770 projecting laterally from the outer peripheral surface of the base end portion of the second horizontal auger 7b2, and the lock lever 700 is supported via the support member 710. The shaft 770 is configured to be rotatable. Note that a stopper is provided on the side surface of the second horizontal auger 7b2 of the support member 710 to regulate the maximum rotation amount.

An engagement member 750 having an engagement recess 750 a is provided on the distal end side in the axial direction from the support member 710 of the lock lever 700 so as to project in a direction (downward) perpendicular to the lock lever 700 and perpendicular to the support shaft 770. Yes. In addition, a roller 760 having a rotation shaft substantially parallel to the support shaft 770 is rotatably supported on the outer peripheral surface of the front end portion of the first horizontal auger 7b1, and is engaged with the engagement recess 750a of the engagement member 750. It is configured to be compatible. By making the roller 760 rotatable, the resistance at the time of engagement with the engagement recess 650a is reduced.
Here, the lock lever 700 is urged toward the axial base end by the compression spring 740, and the roller 760 is engaged with the engagement recess 750a when the roller 760 is engaged with the engagement recess 750a. , The lock lever 700 is slid and engaged with the axial end portion against the biasing force of the compression spring 740. Since the engaging recess 750a is open to the axial base end side of the lock lever 700 and the axis rotation roller 760 side of the support shaft 770, in the engaged state, the engagement recess 750a is caused by the biasing force of the compression spring 740. The engaging member 750 is urged toward the roller 760 and the engagement is maintained.
A grip 700 a is formed at the tip of the lock lever 700.

  In such a configuration, when the second horizontal auger 7b2 is rotated and reaches the extended position Q2 as described above, the lock lever 700 is rotated counterclockwise as shown in FIG. The engaging recess 750 a of the engaging member 750 provided in 700 is engaged with the roller 760. At this time, the engaging recess 750a is urged toward the roller 760 by the urging force of the compression spring 740, and as a result of this state being maintained, the lock lever 700 is not easily disengaged. The shape of the engaging recess 750a is set to match the outer shape of the roller 760, and the lock lever 700 slides against the support member 710 against the compression spring 740 when locking and unlocking.

Next, a lock mechanism 670 for securely holding the second horizontal auger 7b2 at the bending position will be described with reference to FIG.
The outer periphery of the middle part of the second horizontal auger 7b2 opposite to the lock lever 700 and the auger axis (the side adjacent to the first horizontal auger 7b1 when the second horizontal auger 7b2 is positioned at the bending position) A support stay 810 is fixed to the side so as to protrude sideways. A pivot shaft 820 is fixed to the support stay 810 in the vertical direction, and a lock lever 830 is pivotally supported on the pivot shaft 820. The lock lever 830 is urged by a spring provided on the pivot shaft 820 in a direction to engage with the support stay 810 (in FIG. 6, the pivot shaft 820 rotates counterclockwise).

  The lock lever 083 is arranged in parallel with the second lateral auger 7b2 and is configured in a substantially J shape in plan view, and a grip portion 830a is formed at one end. On the other hand, an engaging recess 830 b is formed at the other end of the lock lever 830. A support frame 840 that protrudes toward the engaging recess 830b of the second horizontal auger 7b2 is fixed to the outer peripheral side of the first horizontal auger 7b1 in a state where the second horizontal auger 7b2 is positioned at the bending position Q1. It is installed. The support frame 840 is formed in a U shape in a plan view, and an engagement pin 850 is provided at the tip of the support frame 840 substantially in parallel with the rotation shaft 330. The engagement recess 830b of the lock lever 830 is configured to be engageable with the engagement pin 850.

  In such a configuration, when the second lateral auger 7b2 is refracted as described above, the contact portion 830c of the lock lever 830 contacts the engagement pin 850 immediately before reaching the bending position Q1. At this time, the lock lever 830 is pushed clockwise around the pivot shaft 820 against the biasing force of the spring. Further, when the second lateral auger 7b2 is refracted to reach the refractive position Q1, the tip of the lock lever 830 is disengaged from the engaging pin 850 and rotated counterclockwise in FIG. 5 by the biasing force of the spring. Then, the engaging recess 830 b of the lock lever 830 engages with the engaging pin 850. Thus, at the time of refraction, the second horizontal auger 7b2 and the first horizontal auger 7b1 are locked by the lock lever 830 so that they cannot move relative to each other. Therefore, the second horizontal auger 7b2 can be reliably held at the bending position Q1 without operating the lock lever 830 when the second horizontal auger 7b2 is refracted. In this state, the lock lever 830 is counteracted by the spring and can be unlocked by rotating the pivot lever 820 in the clockwise direction in FIG.

In the present embodiment, there is provided a control device 400 for controlling the operation of the turning drive mechanism X1, the vertical swing drive mechanism X2, and the bending / extension drive mechanism X3.
In FIG. 9, the schematic block diagram for the control regarding the discharge auger 7 of the combine 1 of this embodiment is shown.
In the combine 1 of this embodiment, as shown in FIG. 9, the control device 400 detects the turning angle sensor 91 for detecting the turning angle of the horizontal auger 7b around the axis of the vertical auger 7a and the second horizontal auger 7b2. A detection signal from the bending / extension position sensor 92 for detecting a bending / extension position corresponding to the rotation about the rotation axis 330 is received, and a control signal can be transmitted to each drive mechanism X1, X2, X3.
The control device 400 controls the bending / extension driving mechanism X3 so as to move the second lateral auger 7b2 to the bending position Q1 or the extended position Q2 only in a state where the lateral auger 7b is located at the storage position P2. To do.
Furthermore, the control device 400 according to the present embodiment moves the second lateral auger 7b2 to the bending position Q1 or only when the lateral auger 7b is raised to a predetermined position (for example, the position where the lateral auger 7b is most raised). The bending / extension driving mechanism X3 is controlled to move to the extension position Q2.

That is, according to the combine 1 having the above-described configuration, the grain from the state in which the horizontal auger 7b is positioned at the storage position P2 and the second horizontal auger 7b2 is positioned at the refraction position Q1 arranged in parallel with the first horizontal auger 7b1. When shifting to the discharging operation, the control device 400 determines that the side auger 7b is located at the storage position P2 and the side auger 7b is raised to a predetermined position. The extension operation of rotating the second horizontal auger 7b2 about the rotation axis 330 substantially orthogonal to the first horizontal auger 7b1 to extend to the extension position Q2 is permitted.
When the horizontal auger 7b is stored after the grain discharging operation is completed, the control device 400 rotates the entire horizontal auger 7b around the axis of the vertical auger 7a via the turning drive mechanism X1. The second lateral auger 7b2 is moved with respect to the first lateral auger 7b1 via the bending / extension driving mechanism X3 only in a state where the working position P1 is swung to the storage position P2 and the lateral auger 7b is raised to a predetermined position. Thus, a refraction operation in which the light is revolved around the revolving shaft 330 and refracted to the refraction position Q2 is allowed.
That is, when the horizontal auger 7b turns from one of the discharge work position P1 and the storage position P2 to either one, the second horizontal auger 7b2 is always positioned at the extended position Q2.

In this way, since the second horizontal auger 7b2 is extended or refracted only when the horizontal auger 7b is located at the storage position P2, the bending / extending operation range with respect to the traveling machine body 2 is always constant, and no matter which position is turned, There is no need to worry about interference.
Further, by causing the lateral auger 7b to bend and extend while being raised, it is possible to prevent interference with the surroundings.
Further, since the entire horizontal auger 7b is turned in a state where the second horizontal auger 7b2 is positioned at the extended position Q2, it is easy to grasp the position of the grain discharge port 7e positioned at the tip of the horizontal auger 7b.
Therefore, workability in the grain discharging operation can be further improved.

Here, the configuration of the operation system of the discharge auger 7 will be described.
FIG. 10 shows an overall view of the remote control device 410 provided in the combine 1 of the present embodiment.
In the present embodiment, a remote controller 410 for performing operations related to the discharge auger 7 as shown in FIG. 10 is provided in the vicinity (front side) of the driver seat 5.
In the present embodiment, the remote controller 410 includes an auger clutch switch 420 that operates the auger clutch mechanism 71, an auger operation switch 430 that rotates the horizontal auger 7b about the axis of the vertical auger 7a, and the second horizontal A bending / extending switch 440 for starting the movement of the auger 7b2 to the bending position Q1 or the extending position Q2, and an auto for continuously performing the bending / extending operation of the second lateral auger 7b2 and the turning operation of the lateral auger 7b. And a switch 450.

The auger clutch switch 420 is a switch for operating the auger clutch mechanism 71. By turning ON / OFF the auger clutch switch 420, the auger clutch switch 420 is switched to the grain discharge mechanism from the grain tank 6 to the grain discharge port 7e of the discharge auger 7. Engage / cut off the driving force.
The auger operation switch 430 has four switches (that is, an up switch 431, a down switch 432, a left turn switch 433, and a right turn switch 434) for swinging the horizontal auger 7b up and down and turning left and right while being pressed for a long time. is doing. The auger operation switch 430 may be configured as an operation lever that can be tilted in four directions instead of the four switches.
The bending / extending switch 440 includes an extension switch 441 for starting the extension operation of the second lateral auger 7b2, and a refraction switch 442 for starting the bending operation of the second lateral auger 7b2.

The auto switch 450 moves the second horizontal auger 7b2 from the bending position Q1 to the extended position Q2 via the bending / extension driving mechanism X3, and then moves the horizontal auger 7b extended via the turning drive mechanism X1 to the An auger set switch 451 for starting a work start movement for turning around the axis of the vertical auger 7a to be positioned at a predetermined discharge work position, and the horizontal auger 7b around the axis of the vertical auger 7a via the turning drive mechanism X1. The auger return switch for starting the work end movement for moving the second lateral auger 7b2 from the extended position Q2 to the refracted position Q1 via the bending / extension driving mechanism X3 after turning to the predetermined storage position P2. 452.
Furthermore, the auger set switch 451 has a plurality of auger set switches that are turned from the storage position P2 to a predetermined turning angle (for example, a predetermined first angle θ1 and a second angle θ2 that exceeds the first angle θ1). ing. More specifically, it turns to a first angle θ1 (first working position P11, see FIG. 4) such that the axis of the horizontal auger 7b is substantially perpendicular to the front-rear direction of the traveling machine body 2 and the tip is directed to the right. The auger rotated to a second angle θ2 (second working position P12, see FIG. 4) such that the axis lines of the auger right set switch 451a and the horizontal auger 7b to be driven are substantially parallel to the front-rear direction of the traveling machine body 2 and the front end portion faces rearward. A rear set switch 451b is provided.
The remote controller 410 or the like may be provided with setting means such as a setting dial for setting the target turning angle of the autoset switch 451.

Here, the discharge auger control when the auto switch 450 is operated will be described.
11 and 12 show control flowcharts when the auto switch 450 is operated. FIG. 11 is a control flowchart regarding the work start movement, and FIG. 12 is a control flowchart regarding the work end movement.
In this embodiment, the grain is discharged from the state where the horizontal auger 7b is placed on the auger rest 8 (the state where the horizontal auger 7b2 is located at the storage position P2 with respect to the turning direction) and the second horizontal auger 7b2 is located at the refractive position Q1. When shifting to work, the work start movement is performed by operating the auger set switch 451 (the auger right set switch 451a or the auger rear set switch 451b) as shown in FIG.

That is, in response to the operation of the auger set switch 451 (step S1), the control device 400 raises the horizontal auger 7b to the predetermined position (the highest position) via the vertical swing drive mechanism X2 (step S2). ). The control device 400 further determines whether or not the position of the horizontal auger 7b detected by the turning angle sensor 91 is the storage position P2 (step S3).
When the horizontal auger 7b is located at the storage position P2 (Yes in step S3), the second auger 7b2 is rotated about the rotation axis 330 via the bending / extension driving mechanism X3 to extend the horizontal auger 7b. (Step S4). If the horizontal auger 7b is not located at the storage position P2, the horizontal auger 7 is swung around the axis of the vertical auger 7a via the turning drive mechanism X1 and moved to the storage position P2 (step). S5), the second horizontal auger 7b2 is extended.

  When the bending / extension position sensor 92 detects that the second lateral auger 7b2 is located at the extended position Q2 (Yes in step S6), the control device 400 continues the lateral auger 7b via the turning drive mechanism X1. The whole is turned around the axis of the vertical auger 7a and moved to a predetermined discharge work position P1 (step S7). In the present embodiment, when the auger right set switch 451a is operated, the first working position P11 (the turning angle sensor 91 sets the first angle θ1) is such that the distal end portion of the lateral auger 7b is located on the right side of the work machine body 2. The second auger set switch 451b is operated to operate the second auger position P12 (the turning angle sensor 91 sets the second angle θ2). Turn to the detection position. When the turning angle sensor 91 detects that the lateral auger 7b is located at the discharge work position P1 (P11, P12) (Yes in step S8), the control device 400 passes through the vertical swing drive mechanism X2. The horizontal auger 7b is controlled to have a predetermined height (step S9).

  When the horizontal auger 7b is stored after the grain discharging operation is completed, the operation is completed as shown in FIG. 11 by operating the auger return switch 452 in a state where the horizontal auger 7b is positioned at the discharging operation position P1. A move is made.

That is, in response to the operation of the auger return switch 452 (step E1), the control device 400 raises the lateral auger 7b to the predetermined position (the highest position) via the vertical swing drive mechanism X2 (step E2). ). The control device 400 further determines whether or not the position of the horizontal auger 7b detected by the turning angle sensor 91 is the storage position P2 (step E3).
When the discharge work position is not the extended position P2 (Yes in Step E4), the entire horizontal auger 7b is turned around the axis of the vertical auger 7a via the turning drive mechanism X1 to move from the discharge work position P1 to the storage position P2. (Step E5). When the entire horizontal auger 7b is positioned at the storage position P2 (Yes in Step E3), the control device 400 continues to move the second horizontal auger 7b2 to the first horizontal auger 7b1 via the bending / extension driving mechanism X3. Then, the horizontal auger 7b is refracted by turning about the turning shaft 330 (step E4). When the second lateral auger 7b2 is positioned at the bending position (Yes in step E6), the control device 400 lowers the lateral auger 7b to a position where it abuts against the rest portion 8a of the auger rest 8 via the vertical swing drive mechanism X2 ( Step E7).
As long as there is no other interference, instead of the raising control of the horizontal auger 7b in the step E2, the horizontal auger 7b is turned to the storage position P2 (after step E3) and then reaches the predetermined position in the storage position P2. It may be raised.

  Thus, by manually operating the auto switch 450, the grain auger non-working state in which the lateral auger 7b is located at the storage position P2 and the second lateral auger 7b2 is located at the bending position Q1, and the lateral auger 7b is ejected. Since it is possible to continuously switch between the grain discharging work state in which the second lateral auger 7b2 is located at the work position P1 and the extended position Q2, it is possible to reduce the labor of the operator. it can.

The remote control device 410 may be provided in the lateral auger 7b (for example, a side portion in the vicinity of the discharge case 7c) in addition to or in place of the vicinity of the driver's seat 5.
In addition, these switches may be provided not only on the remote control device 410 but also at an arbitrary position (for example, the front panel) in the driver's seat 5.

Further, in the present embodiment, a notification unit 460 for notifying the movement is provided during the movement of the lateral auger 7b to the refraction position Q1 or the extension position Q2 (while executing steps S4 and E4). Examples of the notification means 460 include a notification buzzer and a notification lamp attached to the vicinity of the driver's seat 5 or outside the traveling machine body 2.
As a result, by using the notification means 460, the movement of the second horizontal auger 7b2 can be clearly notified not only to the worker but also to people other than the surrounding workers. It is possible to improve safety to the surroundings during movement to the extended position Q2 or the refractive position Q1 of 7b2.

  Furthermore, in the present embodiment, any of the switches provided on the remote control device 410 is in progress while the second lateral auger 7b2 is moving to the bending position Q1 or the extension position Q2 (while executing steps S4 and E4). When operated, the movement to the refractive position Q1 or the extended position Q2 is stopped.

In this case, any of the switches provided in the remote control device 410 during the bending operation of the second lateral auger 7b2 (in this embodiment, the auger clutch switch 420, the auger operation switch 430, the bending / extension switch 440 and the auto switch 450). ) Is operated, the bending / extending operation is interrupted regardless of the type of the operated switch. By operating the bending / extending switch 440 or the auto switch 450 again in the interrupted state, the bending / extending operation is resumed.
In this way, any switch provided on the remote control device 410 is operated in an emergency such as when a person enters the rotation range of the second horizontal auger 7b2 during the bending operation of the second horizontal auger 7b2. Then, since the movement of the second horizontal auger 7b2 is stopped, there is no need to operate after confirming the type of switch provided in the remote control device 410 by visual observation, and the second horizontal auger 7b2 is stopped more quickly. It is possible to increase safety to the surroundings.

  The embodiment according to the present invention has been described above, but the present invention is not limited to the above embodiment, and various improvements, changes, and modifications can be made without departing from the spirit of the present invention.

  For example, in the above embodiment, the lateral auger 7b is bent and stretched and swiveled at a predetermined position in the vertical direction (the highest position). However, the horizontal auger 7b is bent and stretched at the height of the rest portion 8a of the auger rest 8. It may be done. In this case, it is possible to reduce the motor load in the vertical swing drive mechanism X2 during the bending and stretching and turning operations.

FIG. 1 is a side view of a combine according to an embodiment of the present invention. FIG. 2 is a front view of the combine according to the embodiment of the present invention. FIG. 3 is a transmission schematic diagram of a combine according to an embodiment of the present invention. FIG. 4 is a top view illustrating a turning region of a horizontal auger in the combine of FIG. FIG. 5 is a side view of the vicinity of the connecting portion between the first horizontal auger and the second horizontal auger when the second horizontal auger in the combine of FIG. 1 is located at the extended position. FIG. 6 is a plan view of the vicinity of the connecting portion between the first horizontal auger and the second horizontal auger when the second horizontal auger in the combine of FIG. 1 is located at the extended position. FIG. 7 is a plan view of the first horizontal auger and the second horizontal auger in the vicinity of the connecting portion when the second horizontal auger in the combine of FIG. 1 is positioned at the bending position. FIG. 8 is a side sectional view of the bending and stretching drive mechanism in the vicinity of the connecting portion between the first and second lateral augers when the second lateral auger in the combine of FIG. FIG. 9 is a schematic configuration diagram for control relating to the combine discharge auger of the present embodiment. FIG. 10 is an overall view of a remote control device provided in the combine according to the present embodiment. FIG. 11 is a control flowchart regarding the work start movement when the auto switch is operated in the combine of FIG. FIG. 12 is a control flowchart regarding the work end movement when the auto switch is operated in the combine of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Combine 5 Driver's seat 6 Glen tank 7a Vertical auger 7b Horizontal auger 7b1 1st horizontal auger 7b2 2nd horizontal auger 330 Rotating shaft 400 Controller 410 Remote control device 430 Auger operation switch 440 Bend-extension switch 450 Auto switch X1 Rotation drive mechanism X2 Up and down Oscillation drive mechanism X3 Bending / extension drive mechanism

Claims (5)

A vertical auger that is erected substantially vertically at the rear part of the grain tank and whose base end part communicates with the lower rear part of the grain tank, and whose base end part communicates with the tip part of the vertical auger around the axis of the vertical auger A horizontal auger that can move between a predetermined discharge work position and a predetermined storage position where the grain can be discharged out of the machine by swiveling, the first horizontal auger on the proximal end side and the first auger side on the distal end side A second horizontal auger, and the second horizontal auger is rotated about a rotation axis disposed on the side of the first horizontal auger so that the second horizontal auger becomes the first horizontal auger. A lateral auger that is movable between a refraction position in parallel arrangement and an extension position in which the second lateral auger is coaxial with the first lateral auger, and the second lateral auger in the refractive position and extension. A bending and stretching drive mechanism for moving between positions, and the horizontal auger shaft of the vertical auger It swirled about, and swing drive mechanism for moving between the discharge working position and the storage position, a combine equipped with a control device for controlling the bending and stretching drive mechanism and the rotation driving mechanism,
The control device controls the bending / extension driving mechanism so as to move the second lateral auger between the bending position and the extended position only in a state where the lateral auger is located at the storage position. . The horizontal auger is configured to be swingable in the vertical direction with a base end as a fulcrum, and includes a vertical swing drive mechanism for swinging the horizontal auger in the vertical direction,
The control device controls the bending / extension driving mechanism to move the second lateral auger between the bending position and the extended position only when the lateral auger is raised to a predetermined position. Item 1. A combine according to item 1.   After the second lateral auger is moved from the bending position to the extended position via the bending / extension driving mechanism, the lateral auger extended via the turning drive mechanism is swung around the axis of the vertical auger to perform a predetermined discharge. The work start movement to be positioned at the work position, or the horizontal auger is swung around the axis of the vertical auger via the swivel drive mechanism to be positioned at a predetermined storage position, and then the bend / extension drive mechanism is used to 3. The combine according to claim 1, further comprising an auto switch that can be manually operated to start one of the work end movements for moving the second lateral auger from the extended position to the refractive position. The auto switch is a remote control device provided near the driver's seat or in the horizontal auger, and is provided in the remote control device having an auger operation switch for turning the horizontal auger at least in the extended position about the axis of the vertical auger. ,
When any of the switches provided on the remote control device is operated while the second lateral auger is moved to the bending position or the extension position, the movement to the bending position or the extension position is stopped. The combine according to claim 3. A bending / extending switch for starting movement of the second lateral auger to the bending position or the extending position via the bending / extension driving mechanism;
The bending / extending switch is a remote control device provided in the vicinity of the driver's seat, and is provided in a remote control device having at least an auger operation switch for turning the horizontal auger in the extended position around the axis of the vertical auger,
When any of the switches provided in the remote control device is operated during the movement of the second lateral auger to the bending position or the extension position, the movement to the bending position or the extension position is stopped. The combine according to claim 1 or 2.

Images