CN110959368B - Combine harvester - Google Patents

Abstract

The present invention provides a combine harvester, which is provided with a grain discharging device, wherein the grain discharging device is provided with a longitudinal conveying part connected with the rear lower part of a grain box and a transverse conveying part connected with the upper end part of the longitudinal conveying part in a vertical swinging way, and can perform discharging operation of discharging grains stored in the grain box to the outside of the combine harvester. The lateral conveying portion is rotatable from an initial state of being accommodated inside the machine body and being supported by the supporting member, and is protruded outside the machine body. The rotation range of the lateral conveying part includes a lateral outer front region which is located outside the machine body in the left-right direction of the machine body and located on the front side of the front end of the grain box in the front-rear direction of the machine body. The grain discharging device can perform discharging operation in a state that the transverse conveying part is positioned in the transverse front area. Thus, the grain can be received from the grain discharging apparatus at a position near the machine body in the region laterally of the machine body on the driving portion side.

Description

Combine harvester

Technical Field

The present invention relates to a combine harvester, which comprises: a driving unit provided in the front of the traveling body; a threshing device for threshing the harvested material harvested by the harvesting part; and a grain box provided behind the driving unit for storing grains obtained by the threshing device.

Background

Among the above-mentioned combine harvesters, there are the following: the grain discharging device is provided with a longitudinal conveying part connected with the rear lower part of the grain box and extending upwards along the vertical direction, and a transverse conveying part connected with the upper end part of the longitudinal conveying part in a vertical swinging way and provided with a discharge port at the front end part, and can perform discharging operation of discharging grains stored in the grain box to the outside of the machine, and the transverse conveying part can rotate from a state of being stored in the machine body and extend out of the machine body.

As such a combine harvester, there is, for example, a combine harvester as shown in patent document 1. The combine harvester disclosed in patent document 1 includes a fixed pipe and a longitudinal pipe as a longitudinal conveying section, and a grain discharge auger as a lateral conveying section.

Patent document 1: japanese patent laid-open No. 2005-65659

In the related art, since the lateral conveying portion is extended from the machine body to a position away laterally outward when the lateral conveying portion is extended to the outside of the machine body on the side of the driving portion and the grain is discharged, for example, when the truck is stopped laterally to the side of the driving portion of the machine body and the grain discharged by the grain discharging device is loaded into the vehicle box, the truck has to be stopped at a position away from the machine body, and a large parking space is required, which is a problem, and there is a strong demand for a combine harvester capable of receiving the grain from the grain discharging device at a position close to the machine body in the region laterally to the side of the machine body on the driving portion.

Disclosure of Invention

The present invention provides a combine harvester, which can receive grains from a grain discharging device at a position close to a machine body in a lateral side area of the machine body at a driving part side.

The combine harvester of the invention comprises: a driving unit provided in the front of the traveling body; a threshing device for threshing the harvested material harvested by the harvesting part; a grain box provided behind the driving unit for storing grains obtained by the threshing device; a grain discharging device having a vertical conveying portion connected to a rear lower portion of the grain tank and extending upward in a vertical direction, and a horizontal conveying portion connected to an upper end portion of the vertical conveying portion so as to be capable of swinging upward and downward, and having a discharge port provided at a front end portion, the grain discharging device being capable of performing a discharging operation for discharging grains stored in the grain tank to the outside of the machine; the lateral conveyance unit is rotatable from an initial state of being housed inside the machine body and supported by the support member, and is configured to extend outside the machine body, and includes a lateral outer front region located outside the machine body in a lateral direction of the machine body than a lateral outer end of the driving unit and located on a front side of the front end of the grain box in a front-rear direction of the machine body within a rotation range of the lateral conveyance unit, and the grain discharge device is configured to perform the discharge operation in a state where the lateral conveyance unit is located in the lateral outer front region.

According to this configuration, since the grain is discharged by the grain discharge device in a state in which the lateral conveying portion is pivoted to the laterally outward front region, the lateral conveying portion is extended toward the front side of the front end portion of the grain box in the body laterally side region on the driving portion side, and the grain is discharged in this extended state, the grain can be received from the grain discharge device at a position near the body in the body laterally side region on the driving portion side.

In the present invention, it is preferable that the turning range includes a driver upper region located above the driver, and the lateral transport section is capable of turning from the initial state to the lateral outer front region through the driver upper region.

According to the present invention, since the lateral conveyance unit can be rotated from the initial state to the laterally outward front region in the rotation direction passing over the driving unit, the lateral conveyance unit can reach the laterally outward front region only by rotating a shorter rotation distance, compared with the case of rotating the lateral conveyance unit to the laterally outward front region in the rotation direction opposite to the rotation direction passing over the driving unit, and the lateral conveyance unit can be quickly brought from the initial state to the laterally outward front region.

In the present invention, it is preferable that the turning range includes a body rear region on a rear side of a rear end portion of the body, and the lateral transport unit is capable of turning from the initial state to the body rear region through the above-driving-unit region and the lateral outer front region.

According to this configuration, when the lateral conveying portion is pivoted to the body rear region, the lateral conveying portion projects toward the rear side of the rear end portion of the body, so that the grain can be received from the grain discharging device at the rear side of the rear end portion of the body.

Even if the lateral conveying portion is not returned from the lateral outer front region to the initial state, the lateral conveying portion can be pivoted from the lateral outer front region to the body rear region, and therefore the lateral conveying portion can be quickly changed from a state in which it protrudes toward the front side of the front end portion of the grain box to a state in which it protrudes toward the rear side of the rear end portion of the body.

In the present invention, it is preferable that the lateral transport section is rotatable from the initial state to the body rear region by rotation in a direction opposite to a rotation direction passing through the above-driver region.

According to this configuration, the lateral transport unit can be pivoted to the rear region of the machine body without avoiding interference between the lateral transport unit and the driving unit, and therefore the lateral transport unit can be pivoted to the rear region of the machine body while maintaining a lower height than the upper portion of the driving unit.

In the present invention, it is preferable that the lateral transport section is capable of passing through the region above the driving section only in the maximum ascending posture.

According to this configuration, since the lateral transport unit passes through the region above the driving unit only in the maximum ascent posture when the lateral transport unit passes through the region above the driving unit, the ascent operation of the lateral transport unit for avoiding interference of the lateral transport unit with respect to the driving unit can be performed more easily than in the case where the lateral transport unit is passed through the region above the driving unit in the set ascent posture before the maximum ascent posture.

In the present invention, it is preferable that the support member has a recess for receiving the lateral transport unit from above, and the lateral transport unit is rotatable only in a posture higher than an upper end portion of the recess until the support member is in the initial state when the support member is rotated from a position opposite to the driving unit in a plan view.

According to this configuration, when the lateral transport unit returns to the initial state, the lateral transport unit can be reliably prevented from returning to contact with the support member in a lower posture than the concave portion of the support member.

In the present invention, it is preferable that the combine harvester includes a lift driving device for vertically swinging the lateral transport unit and a lift control unit for controlling the lift driving device, and further includes a regulating member for regulating the lateral transport unit to descend from below to a specific height by abutting the lateral transport unit, wherein the regulating member is provided in a range corresponding to an area above the driving unit, the specific height is a height between a maximum ascending posture and a maximum descending posture, and the specific height is set to a height at which the lateral transport unit is located at a position higher than the driving unit.

According to this configuration, even if the lateral transport unit is not held by the lift drive mechanism and is lowered in the region above the driving unit, the restriction member is brought into contact with the lateral transport unit from below, and the lowering of the lateral transport unit is restricted by the restriction member so that the lateral transport unit does not fall below the height between the maximum raising posture and the maximum lowering posture, so that the lateral transport unit can be prevented from coming into contact with or entering the driving unit even if the lateral transport unit is not held by the lift drive mechanism.

In the present invention, it is preferable that the combine harvester includes an automatic operation tool for instructing the automatic rotation of the lateral conveying unit, and that when the automatic operation tool is operated when the lateral conveying unit is in the initial state, the lateral conveying unit is automatically projected to the outside of the machine body from the initial state, and as a rotation target position for rotating the lateral conveying unit by the automatic operation tool, a lateral discharge position and a rear discharge position are selectable, the lateral discharge position being a position projected further toward the lateral outer front region side in the machine body left-right direction, and the rear discharge position being a position further toward the rear side than the rear end of the machine body, and that the lateral conveying unit is rotated in the same direction even if either one of the lateral discharge position and the rear discharge position is selected as the rotation target position.

According to this configuration, when the automatic operation tool is operated and the lateral discharge position is selected, the lateral conveying portion automatically turns from the initial state to the lateral discharge position, and the lateral conveying portion becomes a state of protruding further outward than when turning to the laterally outward front region, so by simply operating the automatic operation tool and selecting the discharge position, it is possible to receive grains from the grain discharge device at a position further laterally outward from the machine body than when receiving grains from the grain discharge device in the laterally outward front region. When the automatic operation tool is operated and the rear discharge position is selected, the lateral conveying portion automatically rotates from the initial state to the rear discharge position, and the lateral conveying portion is brought into a state of protruding further rearward than the rear end portion of the machine body, so that by operating the automatic operation tool and selecting the discharge position, the grain discharged by the grain discharge device can be received simply at a position further rearward than when the grain is received from the grain discharge device at the lateral discharge position. When the lateral transport unit is changed to the lateral discharge position and the rear discharge position, the operation can be performed promptly without returning to the initial state.

In the present invention, the combine harvester includes an automatic operation element for instructing the lateral transport unit to automatically turn around, and if the automatic operation element is operated when the lateral transport unit is in a state other than the initial state, the lateral transport unit is automatically moved to the initial state regardless of whether the current state of the lateral transport unit is at a clockwise side position or a counterclockwise side position with respect to the initial state.

According to this configuration, the lateral transport unit is automatically moved to the initial state when the automatic operation element is operated, regardless of whether the lateral transport unit is at the clockwise-side turning position or the counterclockwise-side turning position with respect to the initial state, and therefore the lateral transport unit can be easily returned to the initial state.

Drawings

Fig. 1 is a right side view showing the overall structure of the combine harvester.

Fig. 2 is a plan view showing the overall structure of the combine harvester.

Fig. 3 is a rear view of the combine harvester.

Fig. 4 is a perspective view showing an installation structure of the hydraulic cylinder and an angle sensor.

Fig. 5 is a side view showing the hydraulic cylinder and the angle sensor.

Fig. 6 is a side view showing the hydraulic cylinder and the angle sensor.

Fig. 7 is a plan view showing a pivoting range and a pivoting position of the lateral conveyance unit.

Fig. 8 is a block diagram showing an operating device and a control system.

Fig. 9 is an explanatory diagram of a case where the lateral conveyance section is rotated by manual rotation control.

Fig. 10 is an explanatory diagram of a case where the lateral conveyance section is rotated by automatic rotation control.

Fig. 11 is an explanatory view of a case where the lateral conveyance section is rotated by automatic rotation control.

Fig. 12 is an explanatory diagram of a case where the lateral conveyance section is rotated by automatic rotation control.

Fig. 13 is a front view of the support member.

Fig. 14 is a front view of the restricting member.

Fig. 15 is a plan view showing a restricting member provided with other embodiments.

Fig. 16 is a side view showing a restricting member provided with other embodiments.

Fig. 17 is a front view showing a restricting member provided with other embodiments.

Description of the reference numerals

2. Driving part

7. Harvesting part

10. Threshing device

12. Cereal grain box

Front end of 12a grain box

13. Grain discharging device

15. Longitudinal conveying part

16. Transverse conveying part

16b discharge port

21a rear end of the machine body

24. Lifting driving device (Hydraulic cylinder)

29. Support member

29a recess

50. Area above the driving part

51. Lateral outward front region

52. Area behind the body

64. Automatic operation piece (rear rotary switch)

65. Automatic operation piece (horizontal rotary switch)

66. Automatic operation piece (storage switch)

70. Lifting control part

80. Limiting component

83. Limiting component

H initial state

yH lateral discharge position

RH rear discharge position

Detailed Description

An embodiment of the present invention will be described below as an example based on the drawings.

In the following description, the traveling body of the combine is referred to as "front body", the direction of arrow B is referred to as "rear body", the direction of arrow U is referred to as "upper body", the direction of arrow D is referred to as "lower body", the direction of arrow L is referred to as "left body" and the direction of arrow R is referred to as "right body", respectively, as shown in fig. 1 and 2.

[ overall Structure of combine harvester ]

As shown in fig. 1 and 2, the combine harvester includes a travel machine body provided with a pair of left and right crawler travel devices 1. A riding-type driving unit 2 is formed at a lateral right portion of a front portion of the traveling machine body. The cab 2 includes a cabin 3 covering a riding space. A power unit 5 having an engine 4 is formed below the driving unit 2. A harvesting conveyor 6 is connected to the left lateral part of the front part of the travelling body. The harvesting and conveying device 6 includes a harvesting unit 7 and a supply device 8, the harvesting unit 7 is provided in front of the traveling machine body, and harvesting is performed by harvesting stalks of crops such as rice, wheat, and rapeseed located in front of the traveling machine body during operation traveling, and the supply device 8 connects the front portion thereof to the rear portion of the harvesting unit 7 to convey the harvested stalks harvested by the harvesting unit 7. The supply device 8 is connected to the traveling machine body in a state in which the traveling machine body is lifted and lowered by a connecting shaft (not shown) in the lateral direction as a swing fulcrum. The harvesting unit 7 is lifted and lowered between a lowered operation state and a raised non-operation state by swinging and lifting the supply device 8 by a telescopic operation of a hydraulic lifting cylinder (not shown) connected to the supply device 8. A threshing device 10 and a grain box 12 are provided in a state of being laterally aligned at the rear of the traveling machine body, the threshing device 10 receives the cut stalks conveyed by the supply device 8 as threshing objects, performs threshing processing, sorts the threshing processed objects, and the grain box 12 is supplied with grains obtained by the threshing device 10 by a longitudinal grain feeding device 11 and stores the grains. The threshing device 10 and the grain box 12 are juxtaposed in the lateral width direction of the traveling machine body in a state where the grain box 12 is located behind the driving part 2. The grain box 12 is provided with a grain discharge device 13 for discharging grains stored in the grain box 12 to the outside of the machine.

[ Structure for grain discharge device ]

As shown in fig. 1 and 2, the grain discharging device 13 includes a longitudinal conveying portion 15 disposed at a rear end portion of the traveling body in a state extending in a vertical direction of the traveling body, and a lateral conveying portion 16 extending from an upper end portion of the longitudinal conveying portion 15. A discharge port 16b is provided at the front end of the lateral conveyance section 16. The longitudinal conveying section 15 and the transverse conveying section 16 are each constituted by an auger conveyor.

As shown in fig. 1, the vertical conveying section 15 is connected to the rear lower portion of the grain tank 12 via a connecting tank 18 connected to the lower portion of the vertical conveying section 15 and the rear lower portion of the grain tank 12, and extends upward from the connecting tank 18 in the up-down direction of the traveling machine body.

The auger 15a of the vertical conveying section 15 and the bottom auger 14 provided in the bottom of the grain box 12 are coupled to each other in a linked manner in the connecting box 18. The bottom auger 14 is coupled to a driving mechanism (not shown) provided in a driving box 17 at the front lower part of the grain box 12. In a transmission system for transmitting power of the engine 4 to an input pulley 17a provided on the right side in the lateral direction of the drive case 17, a discharge clutch 17b is provided. The discharge clutch 17b is constituted by a belt tension clutch. The exhaust clutch 17b is not limited to the belt tension clutch, and a clutch such as a clutch or a friction clutch may be used. By switching the discharge clutch 17b to the engaged state, the power of the engine 4 is transmitted from the drive box 17 to the bottom auger 14 to drive the bottom auger 14, and the auger 15a of the vertical conveying portion 15 is driven by the power of the bottom auger 14. By switching the discharge clutch 17b to the off state, the power transmission to the bottom auger 14 is disconnected to stop the bottom auger 14, and the auger 15a of the vertical conveying section 15 is stopped.

The vertical conveying section 15 is rotatably supported by a vertical frame 19 and a second vertical frame 20 with the auger shaft center P as a rotation center, the vertical frame 19 is provided between the vertical conveying section 15 and the threshing device 10, and the second vertical frame 20 is provided further rearward than the vertical conveying section 15.

Specifically, the conveying cylinder 15b of the vertical conveying section 15 is rotatably connected to the connection box 18 with the auger shaft center P as a rotation center. The vertical frame 19 is erected on the body frame 21 at a position between the vertical conveying section 15 and the threshing device 10 in a state extending in the up-down direction of the traveling body and in a state laterally arranged to the vertical conveying section 15. The longitudinal frame 19 is formed shorter than the longitudinal conveying portion 15. The second vertical frame 20 is erected on the body frame 21 at a position rearward of the vertical conveying section 15 in a state extending in the up-down direction of the traveling body and in a state disposed side by side with the vertical conveying section 15. A holding member 22 that rotatably holds the transport cylinder 15b of the longitudinal transport section 15 is provided across the upper portion of the longitudinal frame 19 and the upper portion of the second longitudinal frame 20.

A swing motor 23 is supported as a swing driving device by a motor support portion 20a (see fig. 3) formed in the upper and lower intermediate portions of the second vertical frame 20. The longitudinal conveying section 15 is rotated around the auger shaft center P as the longitudinal shaft center by the rotation motor 23. Specifically, the conveying cylinder 15b of the longitudinal conveying section 15 is rotated by the rotation motor 23, whereby the longitudinal conveying section 15 is rotated by the rotation motor 23. In the present embodiment, the swing motor 23 is constituted by an electric motor.

The lateral conveying portion 16 extends from a connection box portion 15c formed at an upper end portion of the longitudinal conveying portion 15, and has a packing auger 16a. The lateral conveying portion 16 is supported by the connection box portion 15c so as to be vertically swingable. When the longitudinal conveying section 15 is pivoted, the lateral conveying section 16 is pivoted together with the longitudinal conveying section 15. That is, the traverse conveyor 16 is rotated by the rotation motor 23 with the auger axis P as the longitudinal axis as the rotation center. A hydraulic cylinder 24 as a lifting drive device is connected to the upper end of the vertical transport section 15 and the base of the horizontal transport section 16. The lateral conveying unit 16 is lifted and lowered relative to the longitudinal conveying unit 15 by the telescopic operation of the hydraulic cylinder 24.

The hydraulic cylinder 24 is attached to the vertical conveying section 15 and the horizontal conveying section 16 based on the attachment structure shown in fig. 4, 5, and 6. That is, the pair of cylinder holders 25 is provided in the connection box portion 15c of the vertical conveying portion 15. A boss portion 24a formed at one end portion of the hydraulic cylinder 24 is interposed between the pair of cylinder brackets 25, and is coupled to the pair of cylinder brackets 25 by a coupling shaft 26 so as to be rotatable relative to each other. A cylinder support portion 27 having a boss portion 27a is formed on a lateral side portion of the lateral conveying portion 16. The other end of the hydraulic cylinder 24 is relatively rotatably supported by the boss portion 27a via a connecting shaft 28.

In the grain discharging apparatus 13, the lateral conveying portion 16 is rotated by the rotation motor 23, so that the posture is changed between the storage posture and the working posture.

When the posture of the grain discharging apparatus 13 is changed to the storage state, as shown in fig. 2, the lateral conveying portion 16 is placed inside the machine body and supported by the support member 29 in the initial state [ H ] (see fig. 7). When the lateral conveying portion 16 becomes the initial state, the lateral conveying portion 16 becomes the following state: the lateral conveying portion 16 extends obliquely leftward and forward from the longitudinal conveying portion 15, the discharge port 16b is located at a lateral left side portion of the driving portion 2, and a front end side portion of the lateral conveying portion 16 is received from above into an upwardly open recess 29a (see fig. 13) formed in an upper end portion of the support member 29, and the lateral conveying portion 16 is locked by the recess 29a so as not to laterally shift. The support member 29 stands upward from the front upper portion of the threshing device 10. When the posture of the grain discharging apparatus 13 is changed to the working state, the lateral conveying portion 16 is rotated from the initial state and is protruded to the outside of the machine body, and the discharge port 16b is located outside the machine body.

In the grain discharging apparatus 13, the discharge clutch 17b is switched to the engaged state, and thereby the discharge operation is performed. That is, when the discharge clutch 17b is switched to the engaged state, the vertical conveying unit 15 and the horizontal conveying unit 16 are driven by the power of the bottom auger 14, and grains discharged from the grain tank 12 to the inside of the connection tank 18 through the bottom auger 14 are conveyed by the vertical conveying unit 15 and the horizontal conveying unit 16 and discharged from the discharge port 16 b.

In the grain discharging apparatus 13, the discharge clutch 17b is switched to the off state, whereby the bottom auger 14 is stopped, and the vertical conveying unit 15 and the horizontal conveying unit 16 are stopped, thereby stopping the grain from being taken out of the grain tank 12.

An angle sensor 34 is supported at a connection portion between the vertical conveying section 15 and the horizontal conveying section 16 in the grain discharging apparatus 13. The angle sensor 34 detects the elevation angle of the lateral transport unit 16 with respect to the longitudinal transport unit 15 as the height position of the front end side portion of the lateral transport unit 16 with respect to the traveling machine body.

Specifically, the angle sensor 34 is constituted by a rotary potentiometer. As shown in fig. 4 and 5, the sensor support portion 25a formed in the cylinder bracket 25 supports the angle sensor 34. A detection arm 35 is provided on the operation shaft 34a of the angle sensor 34 so as to be non-rotatable with respect to each other. A sensing portion 35a is provided at the distal end portion of the detection arm 35 so as to protrude laterally. The operation arm 36 extends from the boss portion 24a of the hydraulic cylinder 24 toward the sensing portion 35a. As shown in fig. 5 and 6, when the traverse unit 16 is lifted and lowered, the hydraulic cylinder 24 swings with respect to the cylinder bracket 25 in accordance with the lifting and lowering of the traverse unit 16, and the operation arm 36 swings with the connecting shaft 26 as a swing fulcrum by the hydraulic cylinder 24. The tip end portion of the operation arm 36 swings while abutting against the sensing portion 35a, and the detection arm 35 swings by the operation arm 36 to rotate the operation shaft 34a, so that the angle sensor 34 detects the lifting angle of the lateral conveyance unit 16.

A pivot angle sensor 42 (see fig. 3) is provided below the pivot motor 23. The pivot angle sensor 42 is supported by the motor support portion 20a of the second longitudinal frame 20. The rotation angle sensor 42 detects the rotation angle of the vertical conveyance section 15 as the rotation position of the whole grain discharging device 13. In the present embodiment, the pivot angle sensor 42 is constituted by a rotary potentiometer.

The traverse conveyor 16 is pivoted by a pivoting motor 23 within the pivoting range shown in fig. 7. In the turning range, as shown in fig. 7, the steering section includes a steering section upper region 50 that passes from the initial state [ H ] over the cabin 3 of the steering section 2 to a position outside the machine body than the lateral outer end of the steering section 2, a lateral outer front region 51 that is outside the machine body in the machine body left-right direction than the lateral outer end of the steering section 2 and is forward of the front end 12a of the grain box 12 in the machine body front-rear direction, a machine body rear region 52 that is rearward of the rear end 21a of the machine body, a right middle region 53 between the lateral outer front region 51 and the machine body rear region 52, and a left middle region 54 between the initial state [ H ] and the machine body rear region 52. The above-the-driver section area 50 is set to a wider range than the range immediately above the cabin 3 of the driver section 2. In the present embodiment, as the above-driver-section area 50, an angle ranging from the initial state [ H ] to the outer end of the above-driver-section area 50 is set to about 70 degrees. In the right middle region 53, a lateral discharge position [ YH ] at which the lateral conveying portion 16 extends further in the left-right direction of the machine body than the lateral outer front region 51 is set. When the lateral transport unit 16 is at the lateral discharge position [ YH ], it protrudes to the right and outer sides of the machine body in a posture along the left-right direction of the machine body. When the lateral conveying portion 16 becomes the lateral discharge position [ YH ], the discharge port 16b is located laterally farther outward from the machine body than when it is located in the laterally outward front region 51. In the body rear region 52, a rear discharge position [ RH ] on the rear side of the rear end portion 21a of the body, a maximum right turn position [ RE ] on the lateral left side of the rear discharge position [ RH ], and a maximum turn position [ LE ] on the lateral left side of the maximum right turn position [ RE ] are set, respectively. In the present embodiment, the maximum right turning position [ RH ] is set at a position at which the lateral transport unit 16 is turned from the initial state [ H ] through the above-driving-unit region 50 by an angle of about 225 degrees. The maximum left turning position [ LE ] is set at a position at which the lateral transport unit 16 is turned from the initial state [ H ] to the turning direction on the opposite side to the driving unit side by an angle of about 100 degrees. When the rear discharge position [ RH ] is reached, the lateral transport unit 16 protrudes rearward of the machine body in a posture along the machine body front-rear direction.

As shown in fig. 8, the angle sensor 34, the pivot angle sensor 42, the hydraulic cylinder 24, the pivot motor 23, and the discharge clutch 17b are associated with a control device 55. An operation device 56 is associated with the control device 55, and the operation device 56 outputs instructions related to manual rotation and automatic rotation of the traverse unit 16 to the control device 55, and outputs instructions related to grain discharge of the grain discharge device 13 to the control device 55. By operating the operation device 56, the lateral conveyance unit 16 can be rotated by manual control and automatic control, and the grain discharge device 13 can discharge grains.

That is, as shown in fig. 2, the operating device 56 is provided at a position laterally rearward of the driver seat 2a in the driver section 2. The present invention is not limited to this, and any portion such as a portion laterally aligned with the driver seat 2a, a portion in front of the driver seat 2a, and a rear wall of the driver section 2 may be used as a portion where the operation device 56 is provided, such as a portion laterally left or a portion laterally right of the driver seat 2 a. The operating device 56 may be a remote control type operating device that is detachable from the driving unit 2.

As shown in fig. 8, the operation device 56 includes an operation panel portion 57, an illumination lamp 58 provided on the front side of the operation panel portion 57 and illuminating the operation panel portion 57, and an illumination lamp switch 59 for switching the illumination lamp 58.

The manual control section of the operation panel section 57 is provided with an up switch 60, a down switch 61, a right turn switch 62, and a left turn switch 63 as manual operation elements. The ascent switch 60 outputs an electric signal to the control device 55, which is used as an instruction to manually ascend the traverse section 16. The descent switch 61 outputs an electrical signal to the control device 55, which is used as an instruction to manually descend the traverse section 16. The right turn switch 62 outputs an electric signal to the control device 55 as an instruction to turn the lateral transport unit 16 in the turning direction from the initial state [ H ] through the above-driver area 50 by manual control. The left turning switch 63 outputs an electric signal to the control device 55 as an instruction to turn the lateral transport unit 16 from the initial state [ H ] to the turning direction on the opposite side from the driving unit side by manual control.

The automatic control portion of the operation panel portion 57 is provided with a rear swing switch 64, a lateral swing switch 65, and a storage switch 66 as automatic operation members. The rear swing switch 64 outputs an electric signal to the control device 55, which is used as an instruction to select the rear discharge position [ RH ] out of the lateral discharge position [ YH ] and the rear discharge position [ RH ] as the swing target position and automatically swing the lateral transport unit 16 to the rear discharge position [ RH ] through the above-driver region 50. The lateral swing switch 65 outputs an electric signal to the control device 55, which is used as an instruction to select the lateral discharge position [ YH ] out of the lateral discharge position [ YH ] and the rear discharge position [ RH ] as the swing target position and automatically swing the lateral conveyance unit 16 to the lateral discharge position [ YH ] through the above-driver region 50. The housing switch 66 outputs an electrical signal to the control device 55, which is used as an instruction to automatically return the traverse section 16 to the initial state [ H ].

In the discharge control portion of the operation panel portion 57, a discharge switch 67 and a stop switch 68 as manual operation members are provided. The discharge switch 67 outputs an electric signal to the control device 55 as an instruction to bring the grain discharge device 13 into a state in which grains can be discharged. The stop switch 68 outputs an electric signal to the control device 55, which is used as an instruction to stop the grain discharging device 13 from discharging grains.

The control device 55 is constituted by a microcomputer, and includes a swing control unit 69, a lift control unit 70, a swing limiting unit 71, a descent limiting unit 72, a discharge control unit 73, and a discharge limiting unit 74.

The swing control unit 69 controls the swing motor 23 based on the instructions of the left swing switch 63, the right swing switch 62, the rear swing switch 64, the lateral swing switch 65, and the storage switch 66, the detection result of the swing angle sensor 42, and a program set in advance, and performs swing control of the lateral conveyance unit 16 in accordance with the instructions of the left swing switch 63, the right swing switch 62, the rear swing switch 64, the lateral swing switch 65, and the storage switch 66.

The swing limiting unit 71 detects the swing position of the lateral conveyance unit 16 based on the detection result of the swing angle sensor 42, determines whether the lateral conveyance unit 16 is in the maximum rising posture based on the detection result of the angle sensor 34, and if it is determined that the lateral conveyance unit 16 is located at the swing position immediately before the driving unit upper region 50 and it is determined that the lateral conveyance unit 16 is in the maximum rising posture, it is configured that the swing control unit 69 can perform swing control of the lateral conveyance unit 16 so that the lateral conveyance unit 16 can pass through the driving unit upper region 50. When the swing restricting unit 71 determines that the lateral conveyance unit 16 is located at the swing position immediately before the above-driving-unit region 50 and determines that the lateral conveyance unit 16 is not in the maximum ascending posture, it is determined that the swing control unit 69 cannot control the swing of the lateral conveyance unit 16, and the lateral conveyance unit 16 cannot pass through the above-driving-unit region 50. By the action of the swing restricting portion 71, the lateral conveyance portion 16 can pass through the above-driving-portion region 50 only in the maximum ascending posture. The maximum ascent posture of the present invention includes not only a posture in which the height is raised to the upper limit by the hydraulic cylinder 24 but also a posture in which the height is slightly before the upper limit.

The swing limiting unit 71 detects the position of the lateral transport unit 16 relative to the support member 29 and the swing direction of the lateral transport unit 16 based on the detection result of the swing angle sensor 42, detects the height of the lateral transport unit 16 relative to the support member 29 based on the detection result of the angle sensor 34, and when the lateral transport unit 16 is rotated from the position opposite to the driving unit 2 to the initial state [ H ] relative to the support member 29, it is determined that the lateral transport unit 16 is positioned immediately before the initial state [ H ], and it is determined that the lateral transport unit 16 is in a higher posture than the upper end portion of the recess 29a of the support member 29, and the swing control unit 69 is configured to be able to perform swing control of the lateral transport unit 16 to move the lateral transport unit 16 to the initial state [ H ]. When the rotation restriction unit 71 determines that the lateral transport unit 16 is positioned immediately before the initial state [ H ] and that the lateral transport unit 16 is in a lower position than the upper end of the recess 29a of the support member 29, it is determined that the rotation control unit 69 cannot control the rotation of the lateral transport unit 16, and the lateral transport unit 16 cannot move to the initial state [ H ]. By the action of the turning control unit 69, the lateral conveyance unit 16 can turn only in a posture higher than the upper end portion of the concave portion 29a of the support member 29 until the initial state [ H ].

The swing limiting unit 71 determines whether or not the lateral conveyance unit 16 is positioned in the recess 29a of the support member 29 based on the detection result of the swing angle sensor 42 and the detection result of the angle sensor 34, and if it is determined that the lateral conveyance unit 16 is positioned in the recess 29a, it is determined that the swing control of the lateral conveyance unit 16 in the rightward swing direction and the leftward swing direction cannot be performed by the swing control unit 69. The lateral conveyance section 16 cannot perform the turning operation unless it is separated upward from the concave section 29 a.

The elevation control unit 70 controls the hydraulic cylinder 24 based on the instructions of the elevation switch 60 and the descent switch 61 and the detection result of the angle sensor 34, and performs elevation control of the lateral conveyance unit 16 in accordance with the instructions of the elevation switch 60 and the descent switch 61.

The lowering limiting unit 72 determines whether the lateral transport unit 16 is located in the above-driving-unit area 50 based on the detection result of the pivot angle sensor 42, and if it is determined that the lateral transport unit 16 is not located in the above-driving-unit area 50, it is configured to control the lowering of the hydraulic cylinder 24 by the raising/lowering control unit 70. When it is determined that the lateral transport unit 16 is located in the above-the-driver region 50, the lowering limiter unit 72 is not configured to control the lowering of the hydraulic cylinder 24 by the raising/lowering controller 70. By the action of the descent control portion 72, the above-driver-portion region 50 becomes a descent control prohibition region in which the lateral conveyance portion 16 cannot descend from the maximum ascent posture.

The discharge control unit 73 performs an on/off operation of the discharge clutch 17b based on the instruction of the discharge switch 67 and the stop switch 68, and switches the grain discharge device 13 between a state in which grains can be discharged and a discharge stop state.

The discharge limiting unit 74 determines whether the traverse unit 16 is in the initial state H based on the detection result of the pivot angle sensor 42, and if it is determined that the traverse unit 16 is not in the initial state H, the discharge control unit 73 is configured to be able to engage the discharge clutch 17b, and to allow the grain discharge device 13 to be set to a state capable of discharging grains by the discharge switch 67. When it is determined that the lateral transport unit 16 is in the initial state H, the discharge restriction unit 74 is not able to engage the discharge clutch 17b by the discharge control unit 73. In the initial state [ H ] of the lateral conveyance unit 16, even when the discharge switch 67 is turned on, the grain discharge device 13 is in a state in which the grain cannot be discharged. When the lateral conveyance unit 16 is in a state other than the initial state [ H ], the grain discharging device 13 is brought into a state capable of discharging grains by turning on the discharge switch 67. In the present embodiment, when the lateral transport unit 16 is located in the above-the-driver region 50, the grain discharging device 13 can be operated to a state in which grains can be discharged by the discharge switch 67. The present invention is not limited to this, and a configuration may be adopted in which the grain discharging device 13 cannot be operated to a state in which grains can be discharged when the lateral transport unit 16 is located in the above-the-driver region 50.

Fig. 9 is an explanatory diagram of a case where the lateral conveyance unit 16 is rotationally controlled by manual control. In fig. 9, [ DE ] represents the height of the lateral transport unit 16 in the maximum descending posture, [ UE ] represents the height of the lateral transport unit 16 in the maximum ascending state, and the diagonal line portion in the turning range is a portion in which the lateral transport unit 16 can be controlled to be lifted by manual control.

When the lateral transport unit 16 is in the initial state [ H ], the ascending switch 60 is turned on to ascend the lateral transport unit 16. When the lateral transport unit 16 reaches the height [ UE ] of the maximum ascending posture, the turning motor 23 is not driven due to the turning restriction of the turning restriction unit 71 even if the right turning switch 62 is turned on, and the lateral transport unit 16 is kept stopped without turning. When the lateral transport unit 16 reaches the height [ UE ] of the maximum ascending posture, the swing restriction by the swing restriction unit 71 is released, and when the right swing switch 62 is turned on, the swing motor 23 is driven to swing the lateral transport unit 16 in the swing direction passing through the driving unit upper region 50. During the on operation of the right swing switch 62, the swing motor 23 is driven to swing the height [ UE ] at which the lateral conveying section 16 maintains the maximum rising posture to the right maximum swing position [ RE ] by the lateral outward front region 51 and the right middle region 53, and stops at the right maximum swing position [ RE ]. When the lateral conveyance unit 16 reaches an arbitrary rotation position of the lateral outward front region 51, an arbitrary rotation position of the right middle region 53, or an arbitrary rotation position before the right maximum rotation position [ RE ] of the body rear region 52, the rotation motor 23 is stopped when the on operation of the right rotation switch 62 is stopped, and the lateral conveyance unit 16 is stopped at the arbitrary rotation position. When the lateral conveyance unit 16 is stopped at any one of the swing positions of the laterally outer front region 51, the swing position of the right middle region 53, the swing position before the right maximum swing position [ RE ] of the body rear region 52, and the right maximum swing position [ RE ], the hydraulic cylinder 24 is operated to be lowered when the lowering switch 61 is operated to be turned on, and the lateral conveyance unit 16 is lowered from the height of the maximum raising posture. During the on operation of the descent switch 61, the hydraulic cylinder 24 is operated to the descent side, and the lateral conveyance section 16 is lowered to the height [ DE ] of the maximum descent posture. When the lateral transport unit 16 is located at an arbitrary height between the height [ UE ] of the maximum ascending posture and the height [ DE ] of the maximum descending posture, the hydraulic cylinder 24 is stopped when the on operation of the descending switch 61 is stopped, and the lateral transport unit 16 is stopped at a height when the on operation of the descending switch 61 is stopped.

When the lateral transport unit 16 passes through the driver upper region 50 from the initial state [ H ] and is located at the turning positions of the lateral outer front region 51, the right middle region 53, and the body rear region 52, the left turning switch 63 is turned on. Then, the turning motor 23 is driven to turn the lateral transport unit 16 toward the initial state [ H ]. When the lateral transport unit 16 is rotated at a position lower than the height [ UE ] of the maximum ascending position, the lateral transport unit 16, which has stopped the rotation motor 23 by the rotation restriction of the rotation restriction unit 71, is stopped at a position immediately before the driving unit upper region 50 when the lateral transport unit 16 is positioned immediately before the driving unit upper region 50. In this case, when the ascending switch 60 is turned on to ascend the lateral transport unit 16 to the height [ UE ] of the maximum ascending posture, the rotation restriction of the rotation restriction unit 71 is released, and the rotation motor 23 is driven to rotate the lateral transport unit 16 to the initial state [ H ] through the driving unit upper region 50.

When the lateral transport unit 16 is in the initial state [ H ], the ascending switch 60 is turned on to ascend the lateral transport unit 16. When the lateral conveyance unit 16 is before being separated upward from the concave portion 29a of the support member 29, as indicated by a circle mark a in fig. 9, even if the left turn switch 63 is turned on, the turn motor 23 is not driven due to the turn restriction by the turn restriction unit 71, and the lateral conveyance unit 16 is kept stopped without turning. When the lateral conveyance unit 16 is in a posture ranging from the height of the escape recess 29a to the height of the height [ UE ] of the maximum ascending posture, the swing restriction by the swing restriction unit 71 is released, and when the left swing switch 63 is turned on, the swing motor 23 is driven to swing the lateral conveyance unit 16 in the swing direction not passing through the driving unit upper region 50. During the on operation of the left turn switch 63, the turn motor 23 is driven so that the lateral conveyance unit 16 is turned to the left maximum turning position [ LE ] through the left middle area 54 while maintaining the height posture at which the left turn switch 63 is on, and is stopped at the left maximum turning position [ LE ]. When the lateral transport unit 16 reaches an arbitrary rotation position of the left middle area 54 and an arbitrary rotation position before the left maximum rotation position [ LE ] of the body rear area 52, the rotation motor 23 is stopped when the on operation of the left rotation switch 63 is stopped, and the lateral transport unit 16 is stopped at the arbitrary rotation position. When the lateral transport unit 16 is stopped at any one of the swing positions of the left middle area 54, the swing position before the left maximum swing position [ LE ] of the body rear area 52, and the left maximum swing position [ LE ], the hydraulic cylinder 24 is operated to the lowering side and the lateral transport unit 16 is lowered when the lowering switch 61 is operated to be turned on. During the on operation of the descent switch 61, the hydraulic cylinder 24 is operated to the descent side, and the lateral conveyance section 16 descends to the height [ DE ] of the maximum descent posture. When the on operation of the descent switch 61 is stopped before the lateral conveyance unit 16 descends to the height [ DE ] of the maximum descent posture, the hydraulic cylinder 24 is stopped, and the lateral conveyance unit 16 is stopped at the height at which the on operation of the descent switch 61 is stopped.

When the lateral transport unit 16 is rotated in the rotation direction opposite to the driving unit side, since the lateral transport unit 16 does not pass through the driving unit upper region 50, the lateral transport unit 16 can be rotated in a state of any height between the height [ DE ] in the maximum lowering posture, the height [ UE ] in the maximum raising posture, and the height [ DE ] in the maximum raising posture when the lateral transport unit 16 is in a state of being separated from the concave portion 29a of the support member 29.

When the lateral conveyance unit 16 rotates in the direction opposite to the direction of rotation of the driver and is at the rotation position of the left middle area 54 and the body rear area 52, the right rotation switch 62 is turned on. Then, the turning motor 23 is driven to turn the lateral transport unit 16 toward the initial state [ H ]. The lateral transport unit 16 is returned from a position opposite to the driving unit 2 to an initial state H with respect to the support member 29 in a plan view. When the lateral conveyance unit 16 rotates in a lower posture than the upper end of the recess 29a of the support member 29, the rotation of the rotation restricting unit 71 restricts the rotation of the rotation motor 23 when the lateral conveyance unit 16 is positioned immediately before the support member 29, and thereby the lateral conveyance unit 16 is stopped at a position immediately before the support member 29. In this case, by turning on the elevation switch 60, as shown by a circle mark a in fig. 9, the lateral conveyance unit 16 is elevated to a posture higher than the upper end portion of the concave portion 29a, the rotation restriction of the rotation restriction unit 71 is released, and the lateral conveyance unit 16 is moved to the initial state [ H ].

The clutch operation position [ C ] shown in fig. 9 is an operation position regulated by the discharge regulating portion 74, and even if the discharge switch 67 is turned on, the discharge clutch 17b is not operated to the engaged state. The clutch operation region [ CA ] is an operation region in which the restriction of the discharge restriction portion 74 is released, and the discharge clutch 17b is operated to the engaged state by the on operation of the discharge switch 67. That is, in the initial state [ H ] of the lateral conveyance unit 16, even if the discharge switch 67 is turned on, the grain discharging device 13 is not set to the grain discharging state. When the lateral conveying unit 16 is located in any one of the upper region 50, the outer front region 51, the right middle region 53, the rear region 52, and the left middle region 54 of the swing range, the grain discharging device 13 can discharge grains by turning on the discharge switch 67.

When the lateral conveying unit 16 is rotated to any one of the lateral front region 51, the right middle region 53, the body rear region 52, and the left middle region 54, the discharge clutch 17b is operated to the engaged state when the discharge switch 67 is operated to turn on, so that the grain discharging device 13 can discharge grains, and grains stored in the grain tank 12 can be taken out by the grain discharging device 13. In the present embodiment, the grain discharging device 13 can be operated to a state in which grains can be discharged in a state in which the lateral transport portion 16 is located in the above-the-driver region 50. The present invention is not limited to this, and the grain discharging device 13 may be configured to be unable to discharge grains in a state where the lateral transport unit 16 is located in the above-the-driver region 50.

Fig. 10 is an explanatory view of the case where automatic rotation control is performed on the traverse section 16 by an instruction of the rear rotation switch 64.

That is, when the lateral transport unit 16 is in the initial state [ H ], the hydraulic cylinder 24 is operated to the ascending side when the rear swing switch 64 is turned on, and the lateral transport unit 16 is raised from the height [ DE ] of the maximum lowering posture to the height [ UE ] of the maximum raising posture. When the lateral transport unit 16 reaches the height [ UE ] of the maximum rising posture, the swing motor 23 is driven to pass the lateral transport unit 16 through the above-driving-unit region 50, and after passing through the above-driving-unit region 50, the lateral transport unit 16 also swings to the rear discharge position [ RH ] through the lateral outward front region 51 and the right middle region 53 while maintaining the height [ UE ] of the maximum rising posture, and stops at the rear discharge position [ RH ] at the height [ UE ] of the maximum rising posture.

Fig. 11 is an explanatory diagram of a case where the automatic swing control is performed on the traverse unit 16 by an instruction of the traverse switch 65.

That is, when the lateral transport unit 16 is in the initial state [ H ], the hydraulic cylinder 24 is operated to the ascending side when the lateral swing switch 65 is turned on, and the lateral transport unit 16 is caused to ascend from the height [ DE ] of the maximum descending posture to the height [ UE ] of the maximum ascending posture. When the lateral transport unit 16 reaches the height [ UE ] of the maximum rising posture, the swing motor 23 is driven to pass the lateral transport unit 16 through the above-driving-unit area 50, and after passing through the above-driving-unit area 50, the lateral transport unit 16 swings the height [ UE ] of the maximum rising posture to the lateral discharge position [ YH ], and stops at the lateral discharge position [ YH ] at the height [ UE ] of the maximum rising posture.

Fig. 12 is an explanatory diagram of the case where the automatic rotation control is performed on the traverse section 16 by the instruction of the storage switch 66.

That is, when the lateral conveyance unit 16 is located at the turning position of the body rear region 52 at a lower posture than the height [ UE ] of the maximum lifting posture, for example, that is, when the lateral conveyance unit 16 is located at the turning position in the counterclockwise direction with respect to the initial state [ H ] at a lower posture than the height [ UE ] of the maximum lifting posture, when the storage switch 66 is turned on, the hydraulic cylinder 24 is operated to the lifting side to lift the lateral conveyance unit 16 to the height [ UE ] of the maximum lifting posture. When the lateral transport unit 16 is in the position of the height [ UE ] of the maximum ascending position, the turning motor 23 is driven to turn the lateral transport unit 16 clockwise. When the lateral transport unit 16 is located at the pivot position corresponding to the initial state [ H ], the hydraulic cylinder 24 is operated to the downward side, and the lateral transport unit 16 is lowered from the height [ UE ] of the maximum lifting posture and is engaged with the recess 29a of the support member 29. That is, the lateral conveyance section 16 automatically moves to the initial state [ H ].

When the lateral conveying portion 16 is located at the turning position of the laterally outward front region 51 at a lower posture than the height [ UE ] of the maximum rising posture, for example, that is, when the lateral conveying portion 16 is located at the turning position in the clockwise direction with respect to the initial state [ H ] at a lower posture than the height [ UE ] of the maximum rising posture, when the receiving switch 66 is turned on, the hydraulic cylinder 24 is operated to the rising side to raise the lateral conveying portion 16 to the height [ UE ] of the maximum rising posture. When the lateral transport unit 16 is in the position of the height [ UE ] of the maximum ascending position, the turning motor 23 is driven to turn the lateral transport unit 16 counterclockwise. When the lateral transport unit 16 is located at the turning position corresponding to the initial state H by the above-driving-unit region 50, the hydraulic cylinder 24 is operated to the downward side, and the lateral transport unit 16 is lowered from the height UE of the maximum raising posture and is engaged with the concave portion 29a of the support member 29. That is, the lateral conveyance section 16 automatically moves to the initial state [ H ].

When the lateral conveyance unit 16 is rotated by the automatic rotation control, the rotation control is stopped by turning on any one of the up switch 60, the down switch 61, the left rotation switch 63, and the right rotation switch 62, which are manual operation members, so that the lateral conveyance unit 16 is stopped at the rotation position when the switches are operated.

As shown in fig. 1 and 2, a restricting member 80 for restricting the lateral transport unit 16 from lowering to a predetermined height or less is provided at the upper portion of the grain tank 12. The restriction member 80 is provided in a range corresponding to the above-the-driver region 50. Specifically, the restriction member 80 is provided in a range corresponding to immediately above the cabin 3 of the driver's cabin 2 in the driver upper region 50. The specific height that restricts the lowering of the lateral conveyance section 16 is a height between the maximum raised posture and the maximum lowered posture of the lateral conveyance section 16, and the specific height that restricts the lowering of the lateral conveyance section 16 is set to a height that positions the lateral conveyance section 16 higher than the upper end portion of the cabin 3 of the driving section 2. As shown in fig. 14, an inclined portion 80a is formed on the side of the restriction member 80 on the initial state side so that the lateral conveyance portion 16 is easily lifted up toward the restriction member 80. Reinforcing ribs 81 are connected to the grain box 12 across the right and left lower portions of the restricting member 80. When the lateral transport unit 16 is located in the cab upper area 50, if the lateral transport unit 16 is lowered due to oil leakage or the like of the hydraulic cylinder 24, the restriction member 80 contacts the lateral transport unit 16 from below, and the restriction member 80 prevents the lateral transport unit 16 from lowering to contact the cabin 3.

Other embodiments

(1) Fig. 15 is a plan view of a regulating member 83 provided in a grain tank 82 according to another embodiment, fig. 16 is a side view of the regulating member 83 according to another embodiment, and fig. 17 is a front view of the regulating member 83 according to another embodiment. The restricting member 83 according to another embodiment is provided at a corner 82a, and the corner 82a is formed at an upper portion of the grain tank 82. The restricting member 83 is provided on the reinforcing baffle 84, and the reinforcing baffle 84 is attached to the grain box 82.

(2) In the above embodiment, the example was shown in which the driver section 2 and the grain box 12 were provided at the right end portion of the traveling machine body, but may be provided at the left end portion of the traveling machine body. In this case, the laterally outer front region 51 is located laterally left and right of the traveling machine body.

(3) In the above embodiment, the example in which the lateral transport unit 16 is pivoted to the laterally outward front region 51 by passing through the above-steering-unit region 50 has been shown, but the following configuration may be adopted: the vehicle is turned from the initial state [ H ] in the turning direction opposite to the driver side, and is turned to the laterally outward front region 51 through the body rear region 52, instead of passing through the driver upper region 50.

(4) In the above embodiment, the example of the automatic turning control by the automatic operation tool (the rear turning switch 64 and the lateral turning switch 65) is shown, but only the manual turning control by the manual operation tool (the left turning switch 63 and the right turning switch 62) may be provided.

(5) In the above embodiment, the hydraulic cylinder 24 is used as the lifting drive device, but the present invention is not limited to this, and an electric actuator such as a hydraulic motor, an electric motor, or an electric cylinder may be used.

(6) In the above embodiment, the example in which the swing motor 23 constituted by an electric motor is used as the swing drive device has been shown, but the present invention is not limited to this, and a hydraulic actuator such as a hydraulic motor or an electric actuator such as an electric cylinder may be used.

(7) In the above embodiment, the example in which the switch is used as the manual operation element and the automatic operation element has been shown, but a lever, a foot pedal, or the like, which is swing type or slide type, may be used.

(8) In the above embodiment, the example of having the cabin 3 is illustrated, but the cabin 3 may not be provided.

Industrial applicability

The present invention is not limited to a combine harvester equipped with a crawler-type traveling device, and can be applied to a combine harvester equipped with traveling wheels. The present invention is not limited to a full-stalk-input combine harvester, and can be applied to a half-stalk-input combine harvester.

Claims (9)

1. A combine harvester is characterized by comprising:

a driving unit provided in the front of the traveling body;

a threshing device for threshing the harvested material harvested by the harvesting part;

a grain box provided behind the driving unit for storing grains obtained by the threshing device;

a grain discharging device having a vertical conveying portion connected to a rear lower portion of the grain tank and extending upward in a vertical direction, and a horizontal conveying portion configured to be connected to an upper end portion of the vertical conveying portion with a discharge port provided at a front end portion thereof so as to be swingable up and down, and capable of being rotated from an initial state supported by a support member while being housed inside a machine body and protruded outside the machine body, and capable of performing a discharging operation of discharging grains stored in the grain tank from the discharge port to the outside of the machine body;

a manual operation member for instructing the lateral conveyance unit to move to an arbitrary position;

an automatic operation member for indicating the lateral transport unit to move to a specific position,

the turning range of the transverse conveying part comprises a transverse outer front area which is positioned outside the machine body in the left-right direction of the machine body and positioned on the front side of the front end part of the grain box in the front-back direction of the machine body,

The specific position is set at a position where the turning amount of the lateral conveying portion from the initial state to the specific position is larger than the turning amount of the lateral conveying portion from the initial state to the lateral outer front region,

if the automatic operation member is operated while the lateral transport portion is in the initial state, the lateral transport portion automatically rises from the initial state and then automatically returns to the specific position,

the lateral transport portion is movable by operation of the manual operation member so that the discharge port is located in the laterally outer front region, and is swingable up and down in a state in which the discharge port is located in the laterally outer front region, and the discharge operation is enabled in a state in which the discharge port is located in the laterally outer front region.

2. A combine harvester according to claim 1, wherein,

in the turning range, an upper region of the driving part located above the driving part is included,

the lateral transport section is rotatable from the initial state through the above-driver section region to the laterally outer front region.

3. A combine harvester according to claim 2, characterized in that,

In the turning range, a rear region of the machine body is included on the rear side of the rear end of the machine body,

the lateral transport section is rotatable from the initial state through the above-driver section area to the rear-body area.

4. A combine harvester according to claim 3, characterized in that,

the lateral transport section is rotatable from the initial state to the body rear region by rotation in a direction opposite to a rotation direction passing through the above-driver section region.

5. A combine harvester according to claim 2 to 4,

the lateral transport section can only pass through the region above the driving section in the maximum lifting posture.

6. A combine harvester according to claim 2 to 4,

the support member is provided with a recess for receiving the lateral conveying portion from above,

when the lateral transport unit is rotated from a position opposite to the driving unit to the initial state with respect to the support member in a plan view, the lateral transport unit can be rotated only in a posture higher than the upper end portion of the recess until the lateral transport unit reaches the initial state.

7. A combine harvester according to claim 2 to 4,

the combine harvester comprises a lifting driving device for enabling the transverse conveying part to swing up and down and a lifting control part for controlling the lifting driving device,

and a regulating member which is brought into contact with the lateral conveying portion from below to regulate the lateral conveying portion to be lowered to a predetermined height or less,

the restriction member is provided in a range corresponding to an area above the driver's seat,

the specific height is a height between a maximum rising posture and a maximum falling posture, and is set to a height at which the lateral conveying portion is located at a position higher than the driving portion.

8. A combine harvester according to claim 1 to 4, characterized in that,

the combine harvester is provided with an automatic operation member for indicating the automatic rotation of the transverse conveying part,

if the automatic operation member is operated when the lateral transport portion is in the initial state, the lateral transport portion is automatically protruded to the outside of the machine body from the initial state,

as a turning target position for turning the lateral conveying portion by the automatic operation tool, a lateral discharge position that protrudes further toward the lateral outer front region side than the lateral outer front region side in the left-right direction of the machine body, and a rear discharge position that is further toward the rear side than the rear end portion of the machine body,

The lateral conveying portion is rotated in the same direction even if any one of the lateral discharge position and the rear discharge position is selected as the rotation target position.

9. A combine harvester according to claim 1 to 4, characterized in that,

the combine harvester is provided with an automatic operation member for indicating the automatic rotation of the transverse conveying part,

if the automatic operation member is operated when the lateral transport portion is in a state other than the initial state, the lateral transport portion is automatically moved to the initial state regardless of whether the current state of the lateral transport portion is a clockwise-side position or a counterclockwise-side position with respect to the initial state.

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