combine

Abstract

Provided is a combine capable of preventing collision of a control section with a lateral discharge section of a discharge auger and collision of the lateral discharge section with an obstacle on the rear left side of a threshing device which is hard to be visually recognized by an operator of the control section.SOLUTION: The discharge auger is formed of a vertical discharge part and a lateral discharge part (8B) extending in the vertical direction and rotating around a shaft center on the rear side of the grain tank (7), and a first regulation area (B) and a second regulation area (D) are set on the rear side of the thresher (4) in a plan view. A sensor for measuring the rotation of the vertical discharge part is provided, and when the sensor measures that the horizontal discharge part (8B) enters the first regulation area (B), the rotation of the vertical discharge part is stopped, and a regulation member for regulating the rotation of the horizontal discharge part (8B) is provided on the upper wall of the grain tank (7). When the lateral discharge portion (side 8B) is positioned below the upper end portion of the regulating member, the rotation of the longitudinal discharge portion is stopped, and when the lateral discharge portion (side 8B) is positioned above the upper end portion of the regulating member, the longitudinal discharge portion is rotated to pass through the second regulating area (D).SELECTED DRAWING: Figure 13

Description

[Technical Field]

[0001] The present invention relates to a combine harvester equipped with a discharge auger that discharges grain stored in a grain tank to the outside. [Background technology]

[0002] Conventionally, a discharge auger that discharges grain stored in a grain tank to the outside is known to be formed by a vertical discharge section that extends vertically behind the grain tank and rotates around its axis, a horizontal discharge section that extends forward from the top of the vertical discharge section and whose front section moves up and down vertically, and a discharge section that discharges grains in front of the horizontal discharge section (Patent Documents 1 and 2). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 5-15245 [Patent Document 2] Japanese Patent Application Laid-Open No. 2001-169652 Summary of the Invention [Problem to be solved by the invention]

[0004] However, Patent Document 1 discloses a technique for setting a restriction area above the control unit that restricts the rotation of the lateral discharge unit in order to prevent a collision between the control unit and the discharge auger.

[0005] Patent document 2 discloses a technology for preventing collision between the control section and the discharge auger, in which the horizontal discharge section is rotated counterclockwise from the stored position around the axis of the vertical discharge section of the discharge auger to extend the horizontal discharge section to the right of the combine, and a technology for preventing collision between the threshing device and the horizontal discharge section, in which a regulating section is provided on the upper wall of the threshing device to prevent the front part of the horizontal discharge section from descending more than a predetermined amount.

[0006] Therefore, the main objective of the present invention is to propose a combine harvester that can prevent collisions between the operating section and the lateral discharge section of the discharge auger, and collisions between the lateral discharge section and an obstacle on the rear left side of the threshing device that is difficult for the operator of the operating section to see. [Means for solving the problem]

[0007] The present invention, which has solved the above problems, is as follows. That is, the invention described in claim 1 is a combine harvester provided with a pre-harvesting device (3) for harvesting stalks at the front of a machine frame (1), a thresher (4) for threshing and sorting the stalks at the rear left side of the pre-harvesting device (3), a control section (5) on which an operator sits at the rear right side of the pre-harvesting device (3), a grain tank (7) for storing the threshed and sorted grains at the rear of the control section (5), and a discharge auger (8) for discharging the grains stored in the grain tank (7) to the outside, The discharge auger (8) is formed of a vertical discharge section (8A) that extends vertically behind the grain tank (7) and rotates around its axis, and a horizontal discharge section (8B) that extends forward and leftward from the top of the vertical discharge section (8A) and whose front section moves up and down in the vertical direction. In a plan view, a first regulating area (B) is set behind the threshing device (4) and a second regulating area (D) is set above the steering section (5). A sensor (26) is provided to measure the rotation of the vertical discharge portion (8A), and when the sensor (26) detects that the lateral discharge portion (8B) has entered the first restriction area (B), the rotation of the vertical discharge portion (8A) is stopped. A restriction member (50) is provided on the upper wall of the grain tank (7) to restrict the rotation of the lateral discharge portion (8B). When the lateral discharge portion (8B) is located below the upper end of the restriction member (50), the rotation of the vertical discharge portion (8A) is stopped. When the lateral discharge portion (8B) is located above the upper end of the restriction member (50), the vertical discharge portion (8A) is rotated so that the lateral discharge portion (8B) passes through the second restriction area (D). In a side view, a rectangular flexible member (62) is provided behind an entrance (60) for the threshed and sorted grains formed on the left wall of the grain tank (7), and a rectangular guide member (63) is provided below the flexible member (62) so as to extend downward toward the front. A partition member (64) having a rectangular upper portion and an inverted triangular lower portion is provided below the guide member (63). This is a combine harvester characterized by the above.

[0008] The invention described in claim 2 is a combine according to claim 1, in which the sensor (26) is mounted on a vertical frame (22) that is erected on the body frame (1) and parallel to the vertical discharge section (8A).

[0009] The invention described in claim 3 is a combine described in claim 2, in which a motor (20) that rotates the vertical discharge section (8A) is attached to the vertical frame (22) and an auger metal (23) that connects the rear of the conveying spiral section (61) of the grain tank (7) with the lower part of the vertical discharge section (8A).

[0010] The invention described in claim 4 is a combine described in claim 1, in which a sun visor (30) is provided above the operating section (5), and in a side view, the upper end of the regulating member (50) is positioned above an imaginary line (L) passing through the rotation axis extending in the left-right direction of the connecting section (40) that connects the upper part of the vertical discharge section (8A) and the rear part of the horizontal discharge section (8B), and the upper end of the rear part of the sun visor (30).

[0011] The invention of claim 5 provides a cabin (10) that covers the operation section (5), and in a side view, the upper end of the regulating member (50) is connected to a rotation axis that extends in the left-right direction of a connecting section (40) that connects an upper part of the vertical discharge section (8A) and a rear part of the horizontal discharge section (8B), and the cabin ( 10 2. The combine harvester according to claim 1, wherein the rear end of the combine harvester is positioned above an imaginary line (L) passing through the upper end of the rear of the combine harvester.

[0012] The invention described in claim 6 is a combine according to claim 1, in which the operating section (5) is provided with an operating seat (5A) where an operator sits, and in a side view, the upper end of the regulating member (50) is positioned above an imaginary line (L) that passes through the rotation axis extending in the left-right direction of the connecting section (40) that connects the upper part of the vertical discharge section (8A) and the rear part of the horizontal discharge section (8B) and the upper end of a part located above the operating seat (5A).

[0013] The invention described in claim 7 is a combine described in any one of claims 4 to 6, wherein the regulating member (50) is formed of a left leg (50A) extending in the vertical direction, a right leg (50B) extending in the vertical direction, and a connecting portion (50C) extending in the left-right direction connecting the upper ends of the left leg (50A) and the right leg (50B), and when viewed in a plane, the connecting portion (50C) is arranged at a predetermined intersection angle with the lateral discharge portion (8B) of the discharge auger (8).

[0014] The invention of claim 8 is the combine of claim 7, wherein the height of the right leg (50B) is formed lower than the height of the left leg (50A), and the connecting portion (50C) is formed with a downward slope to the right.

[0015]

[0016] Claim 9 The invention described in claim 1 is characterized in that the rear upper end of the guide member (63) is positioned rearward of the flexible member (62), and the upper end of the partition member (64) is positioned rearward of the front lower end of the guide member (63). 1 The combine harvester described above. [Effects of the Invention]

[0017] According to the invention of claim 1, the discharge auger (8) is formed by a vertical discharge section (8A) that extends in the vertical direction behind the grain tank (7) and rotates around its axis, and a horizontal discharge section (8B) that extends from the top of the vertical discharge section (8A) to the front left side and whose front section moves up and down in the vertical direction. In a plan view, a first regulating area (B) is set behind the threshing device (4) and a second regulating area (D) is set above the steering section (5). A sensor (26) that measures the rotation of the vertical discharge section (8A) is provided, and the horizontal discharge section ( When the sensor (26) detects that the horizontal discharge portion (8B) has entered the second regulating area (D), the rotation of the vertical discharge portion (8A) is stopped, and a regulating member (50) for regulating the rotation of the horizontal discharge portion (8B) is provided on the upper wall of the grain tank (7), and when the horizontal discharge portion (8B) is located below the upper end of the regulating member (50), the rotation of the vertical discharge portion (8A) is stopped, and when the horizontal discharge portion (8B) is located above the upper end of the regulating member (50), the vertical discharge portion (8A) is rotated so that the horizontal discharge portion (8B) passes through the second regulating area (D). In a side view, a rectangular flexible member (62) is provided behind an entrance (60) for the threshed and sorted grains formed on the left wall of the grain tank (7), and a rectangular guide member (63) is provided below the flexible member (62) so as to extend downward toward the front. A partition member (64) having a rectangular upper portion and an inverted triangular lower portion is provided below the guide member (63). Therefore, it is possible to prevent collision between the steering section (5) and the lateral discharge section (8B), and to prevent collision between the lateral discharge section (8B) and obstacles at the rear of the threshing device (4) that are difficult to see from the steering section (5). In addition, the grains discharged from the inlet (60) are prevented from flying to the rear of the grain tank (7) and are guided to the front of the grain tank (7), thereby preventing the combine from tilting backward during harvesting work.

[0018] According to the invention of claim 2, in addition to the effect of the invention of claim 1, the sensor (26) is attached to the vertical frame (22) that is erected on the machine frame (1) and parallel to the vertical discharge section (8A), so that the sensor (26) can be easily arranged in the vicinity of the vertical discharge section (8A).

[0019] According to the invention described in claim 3, in addition to the effect of the invention described in claim 2, the motor (20) that rotates the vertical discharge section (8A) is attached to the vertical frame (22) and the auger metal (23) that connects the rear of the conveying spiral section (61) of the grain tank (7) to the lower part of the vertical discharge section (8A). Therefore, the motor (20) can be firmly fixed and the vertical discharge section (8A) can be reliably rotated by the motor (20).

[0020] According to the invention of claim 4, in addition to the effects of the invention of claim 1, a sun visor (30) is provided above the operating section (5), and in a side view, the upper end of the regulating member (50) is positioned above an imaginary line (L) that passes through the rotation axis extending in the left-right direction of the connecting section (40) that connects the upper part of the vertical discharge section (8A) and the rear part of the horizontal discharge section (8B) and the upper end of the rear part of the sun visor (30).This prevents contact between the horizontal discharge section (8B) and the sun visor (30), and allows the horizontal discharge section (8B) to move above the sun visor (30), shortening the discharge operation time.

[0021] According to the invention of claim 5, in addition to the effect of the invention of claim 1, a cabin (10) is provided to cover the operation section (5), and in a side view, the upper end of the regulating member (50) is connected to a rotation axis extending in the left-right direction of the connecting section (40) that connects the upper part of the vertical discharge section (8A) and the rear part of the horizontal discharge section (8B), and the cabin ( 10 Since the lateral discharge part (8B) is positioned above an imaginary line (L) passing through the upper end of the rear part of the cabin (10), contact between the lateral discharge part (8B) and the cabin (10) can be prevented, and the lateral discharge part (8B) can be moved above the cabin (10) to shorten the discharge operation time.

[0022] According to the invention of claim 6, in addition to the effects of the invention of claim 1, a cockpit (5A) where an operator sits is provided in the control section (5), and in a side view, the upper end of the regulating member (50) is positioned above an imaginary line (L) that passes through the rotation axis extending in the left-right direction of the connecting section (40) that connects the upper part of the vertical discharge section (8A) and the rear part of the horizontal discharge section (8B) and the upper end of the part located above the cockpit (5A).This prevents contact between the horizontal discharge section (8B) and the cockpit (5A), etc., and allows the horizontal discharge section (8B) to move above the cockpit (5A), etc., thereby shortening the discharge work time.

[0023] According to the invention of claim 7, in addition to the effects of the invention of any one of claims 4 to 6, the regulating member (50) is formed of a left leg (50A) extending in the vertical direction, a right leg (50B) extending in the vertical direction, and a connecting portion (50C) extending in the left-right direction connecting the upper ends of the left leg (50A) and the right leg (50B), and in a plan view, the connecting portion (50C) is provided at a predetermined intersection angle with the lateral discharge portion (8B) of the discharge auger (8). Therefore, the lateral discharge portion (8B) can be moved from the right side to the left side along the upper part of the connecting portion (50C) to easily move the discharge auger 8 to the storage position.

[0024] According to the invention of claim 8, in addition to the effect of the invention of claim 7, the height of the right leg (50B) is formed lower than the height of the left leg (50A), and the connecting portion (50C) is formed with a downward slope to the right. This suppresses the impact caused by contact between the lateral discharge portion (8B) and the connecting portion (50C), and the lateral discharge portion (8B) can be moved from the right to the left along the upper portion of the connecting portion (50C), making it easier to move the discharge auger (8) to the storage position.

[0025]

[0026] Claim 9 According to the invention described, claims 1 In addition to the effects of the invention described above, the rear upper end of the guide member (63) is positioned rearward of the flexible member (62), and the upper end of the partition member (64) is positioned rearward of the front lower end of the guide member (63). This prevents grain guided to the front of the grain tank (7) from moving rearward when the combine is traveling, thereby further preventing the combine from assuming a rearward tilt position during harvesting operations. [Brief explanation of the drawings]

[0027] [Figure 1] FIG. 1 is a front view of a combine harvester according to a first embodiment. [Figure 2] FIG. 1 is a right side view of a combine harvester. [Figure 3] FIG. [Figure 4]FIG. [Figure 5] FIG. 2 is a perspective view of the lower part of the vertical discharge part of the discharge auger as viewed from above and from the left side. [Figure 6] FIG. 10 is a rear view of the lower part of the vertical discharge portion of the discharge auger. [Figure 7] FIG. 2 is a plan view of the vertical discharge portion of the discharge auger. [Figure 8] FIG. 2 is a perspective view of the vertical discharge portion and the horizontal discharge portion of the discharge auger as viewed from the rear right side. [Figure 9] FIG. 10 is a perspective view of a restricting member that restricts movement of the discharge auger, as viewed from the front right side. [Figure 10] FIG. 10 is a perspective view of the restricting member as viewed from above and from the right side. [Figure 11] FIG. 10 is a plan view of the combine harvester in which the vertical discharge portion of the discharge auger is moved clockwise. [Figure 12] FIG. 10 is a right side view of the combine harvester in which the front part of the lateral discharge part of the discharge auger has been moved upward. [Figure 13] 10 is a description of the movement range of the discharge auger. [Figure 14] This is a right side view of the grain tank, explaining the guide members and other components installed inside the grain tank. [Figure 15] This is a front view of the grain tank, illustrating the guide members and other components installed inside the grain tank. [Figure 16] FIG. 10 is a front view of a combine harvester according to a second embodiment. [Figure 17] FIG. 10 is a front view of a combine harvester according to a third embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0028] As shown in Figures 1 to 4, the general-purpose combine harvester of the first embodiment has a traveling device 2 consisting of a pair of left and right crawlers that travels on the soil surface on the underside of a body frame 1, a pre-harvesting processing device 3 that harvests stalks in the field on the front side of the body frame 1, a threshing device 4 that threshers and sorts the harvested stalks on the rear left side of the pre-harvesting processing device 3, and an operating unit 5 on which an operator sits on the rear right side of the pre-harvesting processing device 3.

[0029] An engine room 6 that houses the engine is provided below the control unit 5, a grain tank 7 that stores threshed and sorted grain is provided behind the control unit 5, and a discharge auger 8 that discharges the grain to the outside is provided behind the grain tank 7.

[0030] The pre-harvesting processing device 3 is composed of a raking device 3A that stands the stalks in the field and transports them to the rear, a cutting blade device 3B that cuts the base of the stalks transported to the rear of the raking device 3A, an auger device 3C that gathers the transported stalks to the left side, and a feeder house 3D that transports the gathered stalks to the threshing device 4.

[0031] A sun visor 30 that blocks direct sunlight is provided above the control unit 5. The sun visor 30 is supported so as to be movable in the vertical direction by a support member 31 that extends in the vertical direction and is provided on the front wall of the grain tank 7. This allows the installation position of the sun visor 30 to be adjusted to suit the operator's physique.

[0032] The discharge auger 8 is made up of a vertical discharge section 8A equipped with a conveying spiral extending vertically at the rear side of the grain tank 7, a horizontal discharge section 8B equipped with a conveying spiral extending forward and left from the top of the vertical discharge section 8A, and a discharge section 8C at the front end of the horizontal discharge section 8B for discharging grain. When the discharge auger 8 is moved to the storage position, the middle part of the horizontal discharge section 8B is supported by a receiving stand 4A provided on the upper wall of the threshing device 4.

[0033] 5 to 7, an electric motor (referred to as "motor" in claims) 20 for rotating the vertical discharge section 8A is provided on the left side of the vertical discharge section 8A. The electric motor 20 is fixed via a stay 21 to a vertical frame 22 extending upward from the machine frame 1 and an auger metal 23 that connects the vertical discharge section 8A to a conveying spiral section 61 for conveying grains provided at the bottom of the grain tank 7.

[0034] The lower part of the vertical discharge part 8A is rotatably fixed to an auger metal 23, and a gear 20A attached to the output shaft of the electric motor 20 is engaged with a gear 24 formed on the outer periphery of the vertical discharge part 8A. This allows the electric motor 20 to be driven to rotate the vertical discharge part 8A around an axis extending in the vertical direction.

[0035] A sensor 26A that restricts clockwise rotation of the vertical discharge section 8A and a sensor 26B that restricts counterclockwise rotation of the vertical discharge section 8A are provided above the electric motor 20. When the vertical discharge section 8A rotates clockwise by a predetermined amount or more, a signal input from the sensor 26A to the controller turns ON, and driving of the electric motor 20 is stopped. When the vertical discharge section 8A rotates counterclockwise by a predetermined amount or more, a signal input from the sensor 26B to the controller turns ON, and driving of the electric motor 20 is stopped. This restricts the range of rotation of the discharge auger 8 when viewed from the axis of the vertical discharge section 8A, making it possible to prevent collision with the outside.

[0036] Sensor 26A is attached to the lower surface of stay 27, which has a U-shaped cross section, so as to be movable in the circumferential direction, and sensor 26B is attached to the upper surface of stay 27 so as to be movable in the circumferential direction, and stay 27 is fixed to vertical frame 22. This makes it possible to easily adjust the range of rotation of discharge auger 8 by moving sensors 26A and 26B in the circumferential direction. In this specification, sensors 26A and 26B are collectively referred to as sensor 26. Furthermore, a fuel tank 28 that stores diesel fuel to be supplied to the engine is disposed on the left side of electric motor 20.

[0037] 8 and 9, the upper part of the vertical discharge section 8A and the rear part of the horizontal discharge section 8B are connected via a connecting part 40. The connecting part 40 is formed of a right connecting part 40A extending upward and left from the upper part of the vertical discharge section 8A, a left connecting part 40B extending rearward and right from the rear part of the horizontal discharge section 8B, and a connecting member 40C that rotatably connects the left part and the right part of the left connecting part 40B to the right connecting part 40A.

[0038] A substantially L-shaped suspension member 41 is provided on the right rear portion of the lateral discharge portion 8B. The suspension member 41 is formed of left and right suspension portions 41A extending rightward from the lateral discharge portion 8B, and front and rear suspension portions 41B extending rearward from the right portions of the left and right suspension portions 41A.

[0039] Cylinders 42 that raise and lower the front portion of the lateral discharge section 8B are provided at the middle portions of the left and right suspension sections 41A and at the front upper portion of the vertical discharge section 8A. The rear portions of the front and rear suspension sections 41B are rotatably supported on pins 43 extending rightward from the right connecting section 40A. As a result, when the rod of the cylinder 42 is extended, the left connecting section 40B rotates counterclockwise when viewed from the axis extending in the left-right direction of the connecting section 40A, and the front portion of the lateral discharge section 8B rises. On the other hand, when the rod of the cylinder 42 is retracted, the left connecting section 40B rotates clockwise when viewed from the axis extending in the left-right direction of the connecting section 40A, and the front portion of the lateral discharge section 8B falls.

[0040] A restricting member 50 for restricting the movement of the lateral discharge portion 8B is provided on the right side of the rear of the upper wall of the grain tank 7. The restricting member 50 is preferably disposed close to the left and right suspension portions 41A. This allows the vertical height of the restricting member 50 to be restricted.

[0041] The regulating member 50 is fixed to the support member 50D by welding, and the support member 50D is detachably fixed to the upper wall of the grain tank 7 by fastening means such as bolts. When the discharge auger 8 is moved to the storage position, the lateral discharge portion 8B gains momentum, and if it collides with the regulating member 50, a large impact will be generated. Therefore, it is preferable to increase the thickness of the support member 50D or to form a reinforcing rib on the inner surface of the upper wall of the grain tank 7 to which the support member 50D is fixed for reinforcement.

[0042] As shown in FIG. 10 , the restricting member 50 is formed of a left leg 50A extending vertically, a right leg 50B extending vertically, and a connecting portion 50C connecting the upper portions of the left leg 50A and the right leg 50B. The height of the upper end of the right leg 50B is formed lower than the height of the upper end of the left leg 50A, and the upper portion of the connecting portion 50C is formed to slope downward to the right from the left leg 50A to the right leg 50B. This allows the lateral discharge portion 8B to move from the right side of the connecting portion 50C along the upper portion of the connecting portion 50C to the left side of the connecting portion 50C, making it easy to move the discharge auger 8 to the retracted position. Furthermore, when the discharge auger 8 is retracted, the lateral discharge portion 8B abuts against the sloped portion of the connecting portion 50C even when it is moving with momentum, thereby reducing impact.

[0043] 11, in a plan view, the connecting portion 50C of the restricting member 50 is preferably set at a predetermined intersection angle with the lateral discharge portion 8B, i.e., the front intersection angle is set at an angle between an acute angle and a right angle, for example, 60 to 90 degrees, and the rear intersection angle is set at an angle between an obtuse angle and a right angle, for example, 120 to 90 degrees, and it is even more preferable to set the front intersection angle at 90 degrees and the rear intersection angle at 90 degrees. This allows the lateral discharge portion 8B to be moved from right to left along the top of the connecting portion 50C, making it easy to move the discharge auger 8 to the storage position.

[0044] The left part of the left leg 50A is provided on an imaginary line M where the axis extending in the front-to-rear direction of the lateral discharge part 8B contacts the left side of the rear part of the sun visor 30. This makes it possible to prevent the lateral discharge part 8B from colliding with the sun visor 30 when the vertical discharge part 8A is rotated and the lateral discharge part 8B is moved clockwise from the storage position.

[0045] 12, the upper part of the right leg 50B is located above an imaginary line L that passes through the axis of the connecting member 40C extending in the left-right direction and the upper end of the rear part of the sun visor 30. This prevents the lateral discharge part 8B from colliding with the sun visor 30 when the vertical discharge part 8A is rotated and the lateral discharge part 8B is moved clockwise from the storage position. The sun visor 30 is shown in the state where it is moved to the uppermost position of the support member 31.

[0046] In the combine harvester of the first embodiment, as shown in Figure 13, when viewed from the axis of the vertical discharge section 8A, the horizontal discharge section 8B positioned in the storage position is set as the reference rotation angle of 0 degrees, and the vertical discharge section 8A can rotate in a range A of 45 to 240 degrees clockwise and in a range C of 0 to 70 degrees counterclockwise.

[0047] On the other hand, the signals from sensors 26A and 26B restrict rotation of vertical discharge section 8A in the clockwise direction of 240 to 290 degrees or counterclockwise direction of 70 to 120 degrees (the "first restriction area" in the claims) B, and if the front part of lateral discharge section 8B is not raised above a predetermined level, rotation of lateral discharge section 8B in the clockwise direction of 0 to 45 degrees (the "second restriction area" in the claims) D is restricted by restriction member 50. This makes it possible to prevent lateral discharge section 8B from colliding with the outside, and also makes it possible to prevent lateral discharge section 8B from colliding with sun visor 30.

[0048] When the grain tank 7 becomes full of grain, the traveling device 2 is driven with the discharge auger 8 placed in the storage position to move toward a discharge point located on the outer periphery of the field, and then the electric motor 20 and cylinder 42 are driven to raise and move the discharge auger 8, moving the discharge section 8C located in front of the lateral discharge section 8B above the truck bed to discharge the grain.

[0049] As shown in Figures 14 and 15, the upper front portion of the left wall of the grain tank 7 is provided with a grain inlet 60 for a grain lifting tube that transports grain that has been threshed and sorted by the threshing device 4, and the lower portion of the grain tank 7 is provided with a conveying spiral section 61 that transports leaked grain via the auger metal 23 to the vertical discharge section 8A of the discharge auger 8. A rectangular flexible member 62 made of rubber or the like is provided at the rear of the inlet 60 in the middle of the front-to-rear direction of the grain tank 7. This prevents grain discharged from the inlet 60 from flying rearward from the grain tank 7 and prevents the combine from tilting backward while traveling. The upper portion of the flexible member 62 is detachably fixed to the underside of the upper wall of the grain tank 7.

[0050] A guide member 63 such as a rectangular iron plate is provided below the flexible member 62, and is arranged in a forward-leaning inclined position. In addition, in a side view, the rear upper end of the guide member 63 is located rearward of the flexible member 62. This allows grain that collides with the flexible member 62 and leaks down to be guided to the front of the grain tank 7, further preventing the combine from leaning backward while traveling. The left and right sides of the guide member 63 are removably fixed to the inner surfaces of the left and right walls of the grain tank 7, respectively.

[0051] A partition member 64 is provided below the guide member 63. The upper part of the partition member 64 is formed of a rectangular iron plate or the like, and the lower part is formed of an inverted triangular iron plate or the like. The left and right sides of the inverted triangle are positioned a predetermined distance from the left and right inclined walls of the grain tank 7. In addition, in a side view, the upper end of the partition member 64 is located rearward of the front lower end of the guide member 63. This prevents grain guided to the front of the grain tank 7 by the guide member 63 from quickly moving rearward while the combine is traveling, further preventing the combine from assuming a tilted rearward position. The left and right sides of the upper part of the partition member 64 are detachably fixed to the inner surfaces of the left and right walls of the grain tank 7, respectively.

[0052] <Combine Harvester of Second Embodiment> As shown in Figure 16, the combine harvester of the second embodiment is not equipped with a sun visor 30 on the operating section 5. Note that the same parts as those of the combine harvester of the first embodiment are designated by the same reference numerals and description thereof will be omitted.

[0053] In the combine harvester of the second embodiment, the left portion of the left leg 50A is located on an imaginary line M that passes through an axis extending in the front-to-rear direction of the lateral discharge section 8B and the left portion of the backrest of the driver's seat 5A of the steering section 5, and the upper portion of the right leg 50B is located above an imaginary line L that passes through an axis extending in the left-to-right direction of the connecting member 40C and the upper end of the backrest of the driver's seat 5A. This makes it possible to prevent the lateral discharge section 8B from colliding with the backrest of the driver's seat 5A when the lateral discharge section 8B is moved clockwise from the stored position.

[0054] Furthermore, the restricting member 50 may be shaped so as not to pass through a specific virtual space around the cockpit 5A, without specifying a component that constitutes the cockpit 5A, such as a seat back.

[0055] <Combine Harvester of Third Embodiment> As shown in Figure 17, the control section 5 of the combine harvester of the third embodiment is covered by a cabin 10 having a substantially rectangular parallelepiped shape formed by front and rear walls, left and right walls, and a top wall. Note that the same parts as those of the combine harvester of the first embodiment are given the same reference numerals and their explanations will be omitted.

[0056] In the combine harvester of the third embodiment, the left part of the left leg 50A is located on an imaginary line M that passes through the axis extending in the front-rear direction of the lateral discharge section 8B and the left side of the rear of the cabin 10, and the upper part of the right leg 50B is located above an imaginary line L that passes through the axis extending in the left-right direction of the connecting member 40C and the upper end of the rear of the cabin 10. This makes it possible to prevent the lateral discharge section 8B from colliding with the cabin 10 when it is moved clockwise from the stored position. [Explanation of symbols]

[0057] 1 Aircraft frame 3 Pre-harvest processing equipment 4. Threshing equipment 5 Control Unit 5A Cockpit 7. Glentank 8 Discharge Auger 8A Vertical discharge section 8B Side discharge section 10 Cabins 20 Electric motor (motor) 22 Vertical Frame 23 Ogre Metal 26 sensors 30 Sun visor 50 Regulatory components 50A left leg 50B Right leg 50C connection 60 Loading entrance 61 Conveying spiral section 62 Flexible member 63 Guide member 64 Partition member Area B (first regulatory area) D area (second regulatory area) L Virtual Line

Claims

1. A combine harvester is provided in front of a body frame (1) with a pre-harvesting treatment device (3) for harvesting stalks, a threshing device (4) for threshing and sorting the stalks is provided on the rear left side of the pre-harvesting treatment device (3), a control section (5) on which an operator rides is provided on the rear right side of the pre-harvesting treatment device (3), a grain tank (7) for storing the threshed and sorted grains is provided behind the control section (5), and a discharge auger (8) for discharging the grains stored in the grain tank (7) to the outside, The discharge auger (8) is formed of a vertical discharge section (8A) that extends vertically behind the grain tank (7) and rotates around its axis, and a horizontal discharge section (8B) that extends forward and leftward from the top of the vertical discharge section (8A) and whose front section moves up and down in the vertical direction. In a plan view, a first restriction area (B) is set behind the threshing device (4) and a second restriction area (D) is set above the steering unit (5), a sensor (26) for measuring the rotation of the vertical discharge portion (8A); When the sensor (26) detects that the horizontal discharge portion (8B) has entered the first restriction area (B), the rotation of the vertical discharge portion (8A) is stopped, A restricting member (50) for restricting the rotation of the lateral discharge portion (8B) is provided on the upper wall of the grain tank (7), When the lateral discharge portion (8B) is located below the upper end of the regulating member (50), the rotation of the vertical discharge portion (8A) is stopped, and when the lateral discharge portion (8B) is located above the upper end of the regulating member (50), the vertical discharge portion (8A) is rotated so that the lateral discharge portion (8B) passes through the second regulating area (D), When viewed from the side, this combine harvester is characterized in that a rectangular flexible member (62) is provided behind an entrance (60) for threshed and sorted grains formed on the left wall of the grain tank (7), a rectangular guide member (63) is provided below the flexible member (62) so as to extend downward toward the front, and a partition member (64) having a rectangular upper portion and an inverted triangular lower portion is provided below the guide member (63).

2. 2. A combine harvester according to claim 1, wherein the sensor (26) is mounted on a vertical frame (22) that is erected on the machine frame (1) and parallel to the vertical discharge section (8A).

3. A combine harvester as described in claim 2, wherein a motor (20) for rotating the vertical discharge section (8A) is attached to the vertical frame (22) and an auger metal (23) that connects the rear of the conveying spiral section (61) of the grain tank (7) with the lower part of the vertical discharge section (8A).

4. A sun visor (30) is provided above the control section (5), 2. A combine harvester as described in claim 1, wherein, in a side view, the upper end of the regulating member (50) is positioned above an imaginary line (L) passing through a rotation axis extending in the left-right direction of a connecting portion (40) that connects the upper portion of the vertical discharge portion (8A) and the rear portion of the horizontal discharge portion (8B) and the upper end of the rear portion of the sun visor (30).

5. A cabin (10) is provided to cover the control section (5), A combine harvester as described in claim 1, wherein, in a side view, the upper end of the regulating member (50) is positioned above a virtual line (L) passing through a rotation axis extending in the left-right direction of a connecting portion (40) connecting the upper portion of the vertical discharge portion (8A) and the rear portion of the horizontal discharge portion (8B) and the upper end of the rear portion of the cabin (10).

6. The control section (5) is provided with a control seat (5A) where an operator sits, A combine harvester as described in claim 1, wherein, in a side view, the upper end of the regulating member (50) is positioned above an imaginary line (L) passing through a rotation axis extending in the left-right direction of a connecting portion (40) that connects the upper portion of the vertical discharge portion (8A) and the rear portion of the horizontal discharge portion (8B) and the upper end of a part located above the driver's seat (5A).

7. The regulating member (50) is formed of a left leg (50A) extending in the vertical direction, a right leg (50B) extending in the vertical direction, and a connecting portion (50C) extending in the horizontal direction connecting upper ends of the left leg (50A) and the right leg (50B), The combine harvester according to any one of claims 4 to 6, wherein, in a plan view, the connection portion (50C) is provided at a predetermined intersecting angle with the lateral discharge portion (8B) of the discharge auger (8).

8. 8. A combine harvester according to claim 7, wherein the height of the right leg (50B) is formed lower than the height of the left leg (50A), and the connecting portion (50C) is formed with a downward slant to the right.

9. A combine harvester as described in claim 1, wherein the rear upper end of the guide member (63) is positioned rearward of the flexible member (62), and the upper end of the partition member (64) is positioned rearward of the front lower end of the guide member (63).

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