Combine

Abstract

To propose a combine capable of picking up and conveying grain culm that have completely lodged in a field to the rear using lugs of a conveyor device, thereby reducing a head loss.SOLUTION: A combine includes: a raking device which conveys grain culm in a field rearward while raising them; a cutting device which cuts plant foots of the conveyed grain culm; an auger device which gathers the conveyed grain culm to one side; and a feeder house which conveys the gathered grain culm to a threshing device. The cutting device includes a pair of left and right rotary blade devices and a pair of left and right conveyor devices disposed above rotary blades of the rotary blade devices. A first rotary shaft extending in a left-right direction is provided at a front portion of a pair of left and right frames of the conveyor devices, and a second rotary shaft extending in a left-right direction is provided at a rear portion. Lugs are erected at predetermined intervals on chains wound around a sprocket of the first rotary shaft and a sprocket of the second rotary shaft. In a side view, the frames are arranged so as to ascend rearward, and a tip portion of a lug that moves from rear to front on a lower side of the front portion of the frames enters the field.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a combine harvester equipped with a pre-harvest treatment device. [Background technology]

[0002] A conventional technology has been known that includes a pre-harvest processing device in front of the combine's threshing device, which includes a raking device that stands up the stalks in the field and transports them backward, a conveyor device that picks up the stalks that have fallen in the field and transports them backward, a cutting device made up of a rotary blade that cuts the base of the stalks that are transported, an auger device that gathers the transported stalks to one side, and a feeder house that transports the gathered stalks to the threshing device. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2012-157280 Summary of the Invention [Problem to be solved by the invention]

[0004] However, with the technology of Patent Document 1, there was a risk of a large amount of head loss because it was difficult for the tag of the conveyor device to pick up the stalks that had completely fallen in the field and transport them backward.

[0005] Therefore, an object of the present invention is to propose a combine harvester that can pick up completely fallen stalks in a field using the tag of a conveyor device and transport them backward, thereby reducing head loss. [Means for solving the problem]

[0006] The present invention, which has solved the above problems, is as follows. That is, the invention described in claim 1 is a combine harvester in which a traveling device (2) is provided under a machine frame (1), a pre-harvesting device (3) is provided in front of the machine frame (1), and a threshing device (4) is provided behind the pre-harvesting device (3), The pre-harvest treatment device (3) is composed of a raking device (3A) that transports the culms in the field backward while raising them up, a cutting device (3B) that cuts the base of the transported culms, an auger device (3C) that gathers the transported culms to one side, and a feeder house (3D) that transports the gathered culms to a threshing device (4). The cutting device (3B) is formed by a pair of left and right rotary blade devices (20) and a pair of left and right conveyor devices (40) that are arranged above the rotary blades (22) of the rotary blade devices (20). This combine harvester is characterized in that a first rotating shaft (43) extending in the left-right direction is provided at the front of a pair of left and right frames (41), and a second rotating shaft (42) extending in the left-right direction is provided at the rear, and lugs (44) are provided at a predetermined interval on a chain wound around a sprocket of the first rotating shaft (43) and a sprocket of the second rotating shaft (42), and when viewed from the side, the frames (41) are positioned with the rear raised, and the tip of the lug (44) moving from rear to front below the front of the frame (41) enters the field.

[0007] The invention described in claim 2 is a combine according to claim 1, in which a gauge wheel device (50) is provided between the rotary blade device (20) arranged on the left side and the rotary blade device (20) arranged on the right side, and when the gauge wheel (51) of the gauge wheel device (50) comes into contact with the field surface in a side view, the tip of the lug (44) is located below the field surface and the lower end of the rotary blade (22) is located above the field surface.

[0008] The invention described in claim 3 is a combine harvester described in claim 2, in which a ground sensor (30) is provided behind the rotary blade device (20) to measure the height of the lower wall of the auger frame (60) of the auger device (3C) and the field, and the pre-harvest treatment device (3) is raised and lowered according to the measurement value of the ground sensor (30), thereby maintaining the cutting device (3B) at a predetermined height above the field surface.

[0009] The invention described in claim 4 is a combine described in any one of claims 1 to 3, in which a guide (47) extending rearward is provided at the rear of the pair of left and right frames (41), and in side view, the rear end of the guide (47) is positioned rearward of the tip of the lug (44) that moves from top to bottom along the rear of the frame (41).

[0010] The invention of claim 5 is the combine harvester of claim 4, wherein the rear portion of the guide (47) extends rearward and downward and is located close to the front side of the raking auger (61) of the auger device (3C).

[0011] The invention described in claim 6 is a combine described in claim 5, in which the first rotating shaft (43) is provided at the vertical center of the frame (41), and the second rotating shaft (42) is provided at a position offset downward from the vertical center of the frame (41).

[0012] The invention described in claim 7 is a combine described in claim 6, which is provided with a cover (49) that covers the upper side of the second rotating shaft (42), and the portion of the cover (49) in front of the second rotating shaft (42) is formed to rise rearward, and the portion of the cover (49) in back of the second rotating shaft (42) is formed to fall rearward. [Effects of the Invention]

[0013] According to the invention of claim 1, the pre-harvest treatment device (3) is composed of a raking device (3A) that transports the culms in the field rearward while raising them upright, a cutting device (3B) that cuts the base of the transported culms, an auger device (3C) that gathers the transported culms to one side, and a feeder house (3D) that transports the gathered culms to the threshing device (4). The cutting device (3B) is formed by a pair of left and right rotary blade devices (20) and a pair of left and right conveyor devices (40) that are arranged above the rotary blades (22) of the rotary blade devices (20). The front part of the pair of left and right frames (41) of the conveyor devices (40) is The conveyor device (40) has a first rotating shaft (43) extending left and right at the front and a second rotating shaft (42) extending left and right at the rear, and lugs (44) are provided at a predetermined interval on a chain wound around the sprocket of the first rotating shaft (43) and the sprocket of the second rotating shaft (42).When viewed from the side, the frame (41) is positioned with the rear rising, and the tip of the lug (44) moving from rear to front below the front side of the frame (41) enters the field, so that the lug (44) of the conveyor device (40) can pick up the stalks that have completely fallen in the field and transport them rearward, thereby reducing head loss.

[0014] According to the invention described in claim 2, in addition to the effects of the invention described in claim 1, a gauge wheel device (50) is provided between the rotary blade device (20) located on the left side and the rotary blade device (20) located on the right side, and when viewed from the side, when the gauge wheel (51) of the gauge wheel device (50) touches the field surface, the tip of the lug (44) is located below the field surface and the lower end of the rotary blade (22) is located above the field surface, so that the lug (44) of the conveyor device (40) can lift up the stalks that have completely fallen over in the field, thereby reducing head loss and preventing damage to the rotary blade (22).

[0015] According to the invention described in claim 3, in addition to the effect of the invention described in claim 2, a ground sensor (30) is provided on the rear side of the rotary blade device (20) to measure the height of the lower wall of the auger frame (60) of the auger device (3C) and the field, and the pre-harvest treatment device (3) is raised and lowered according to the measurement value of the ground sensor (30) to maintain the cutting device (3B) at a predetermined height above the field surface.Therefore, the pre-harvest treatment device 3 is raised and lowered according to the measurement value of the ground sensor (30), and the cutting device (3B) attached to the auger frame (60) can be maintained at a predetermined height above the field surface.

[0016] According to the invention described in claim 4, in addition to the effects of the invention described in any one of claims 1 to 3, in addition to the effects of the invention described in claim 3, a guide (47) extending rearward is provided at the rear of a pair of left and right frames (41), and in side view, the rear end of the guide (47) is positioned rearward of the tip of the lug (44) that moves from top to bottom at the rear of the frame (41).This prevents the straw transported rearward by the conveyor device (40) from becoming entangled in the lug (44) and allows it to be efficiently handed over to the auger device (3C).

[0017] According to the invention described in claim 5, in addition to the effect of the invention described in claim 4, the rear part of the guide (47) is extended downward and rearward and is located close to the front side of the raking auger (61) of the auger device (3C), so that the straw transported rearward by the conveyor device (40) is more effectively prevented from becoming entangled in the lug (44) and can be efficiently handed over to the auger device (3C).

[0018] According to the invention described in claim 6, in addition to the effects of the invention described in claim 5, the first rotating shaft (43) is located at the vertical center of the frame (41), and the second rotating shaft (42) is located at a position offset downward from the vertical center of the frame (41).This further prevents the straw transported rearward by the conveyor device (40) from becoming entangled in the lug (44), and allows it to be handed over to the auger device (3C) more efficiently.

[0019] According to the invention described in claim 7, in addition to the effect of the invention described in claim 6, a cover (49) is provided to cover the upper side of the second rotating shaft (42), and the portion of the cover (49) in front of the second rotating shaft (42) is formed to rise rearward, and the portion of the cover (49) in back of the second rotating shaft (42) is formed to fall rearward.This prevents the straw transported rearward by the conveyor device (40) from becoming entangled in the cylindrical body that houses the rotating shaft (42), and allows it to be efficiently handed over to the auger device (3C). [Brief explanation of the drawings]

[0020] [Figure 1] FIG. [Figure 2] FIG. [Figure 3] FIG. [Figure 4] FIG. 1 is a plan view of a cutting blade device according to a first embodiment. [Figure 5] FIG. 2 is a left side view of the cutting blade device according to the embodiment. [Figure 6] FIG. 2 is a perspective view of the cutting blade device according to the embodiment. [Figure 7] FIG. 10 is a left side view of the cutting blade device according to the second embodiment. [Figure 8] FIG. 10 is a left side view of the cutting blade device according to the third embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0021] As shown in Figures 1 to 3, a general-purpose combine harvester 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 a control unit 5 on which an operator rides on on the rear right side of the pre-harvesting processing device 3.

[0022] 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.

[0023] The pre-harvest processing device 3 is composed of a raking device 3A that transports the stalks in the field rearward while raising them upright, a cutting device 3B that cuts the base of the stalks that are transported to the rear and below the raking device 3A, an auger device 3C that gathers the stalks whose bases have been cut to the left, and a feeder house 3D that transports the gathered stalks to the threshing device 4.

[0024] <Scraping device> 4 and 5, the sweeping device 3A is provided on the front upper side of the auger frame 60 of the auger device 3C. The sweeping device 3A has approximately the same width as the auger frame 60 in the left-right direction.

[0025] The take-in device 3A is composed of a take-in reel 10 and an arm 11 that moves the take-in reel 10 up and down.

[0026] When viewed from the side, the take-up reel 10 is formed in an approximately hexagonal shape, and tine support rods 12 extending in the left-right direction are provided at six corners, and multiple reel tines 13 are suspended from the tine support rods 12 at predetermined intervals in the left-right direction.

[0027] A rotary shaft 14 extending in the left-right direction is installed at the front of the arm 11, and the rotary shaft 14 supports the take-up reel 10. The rear of the arm 11 is rotatably fixed to the upper part of the rear wall of the auger frame 60, and the arm 11 and the left wall of the auger frame 60 are connected at their intermediate portions by a lifting device (not shown), such as a hydraulic cylinder, that swings the arm 11 up and down.

[0028] <Cutting device of first embodiment> As shown in Figures 4 to 6, the cutting device 3B of the first embodiment is formed from a pair of left and right rotary blade devices 20 that cut the base of the stump of the grain stalk, and a pair of left and right conveyor devices 40 that erect the grain stalk that has been shoveled in by the shoveling device 3A provided above the rotary blade devices 20.

[0029] The distance between the left and right cutting devices 3B in the left-right direction is set to the distance between rows in the field, which allows the rotary blade device 20 to efficiently cut the stalks planted in each row.

[0030] The rotary blade device 20 is made up of a frame 21 extending in the front-to-rear direction, a rotary blade 22 provided on the upper front side of the frame 21, a motor 23 for rotating the rotary blade 22 provided on the upper rear side of the frame 21, and a protective cover 24 detachably attached to the lower part of the frame 21. The frame 21 of the rotary blade device 20 located on the left side extends from the rear to the front right, and the frame 21 of the rotary blade device 20 located on the right side extends from the rear to the front left.

[0031] The rotary blade 22 of the left rotary blade device 20 rotates clockwise, and the rotary blade 22 of the right rotary blade device 20 rotates counterclockwise. This prevents soil that comes into contact with the rotary blade 22 from being discharged outside the auger frame 60.

[0032] When the raking device 3A is lowered, the tip of the reel tine 13 approaches the upper part of the rotary blade 22. This reduces head loss and allows the base of the stalk raked in by the raking device 3A to be cut and efficiently transported to the auger frame 60. In addition, the rotary blade 22 is positioned below the upper surface of the lower wall of the auger frame 60. This prevents soil that comes into contact with the rotary blade 22 from entering the auger frame 60.

[0033] Inside the protective cover 24, there are arranged a sprocket for the rotary blade supported on the lower part of the rotary shaft of the rotary blade 22, a sprocket for the motor supported on the lower part of the rotary shaft of the motor 23, and a chain wound around both sprockets. This prevents the sprocket for the rotary blade and other parts from coming into contact with the soil in the field, thereby suppressing deformation and rotation problems.

[0034] The front lower part of the protective cover 24 is formed with a downward slope at the rear, which prevents the front part of the protective cover 24 from digging into the soil in the field and allows the front part of the rotary blade device 20 to move up and down efficiently along the unevenness.

[0035] A ground sensor 30 that measures the height of the cutting device 3B from the field surface and a detection body 31 that extends rearward and downward from the ground sensor 30 are provided on the rear side of the rotary blade device 20. This allows the pre-harvest processing device 3 to be raised or lowered according to the measurement value of the ground sensor 30, thereby maintaining the cutting device 3B at a predetermined height from the field surface.

[0036] In a side view, the conveyor device 40 is disposed in a rear-up position, and the rear portion of the conveyor device 40 is provided close to the front side of the raking auger 61 of the auger device 3C. This allows the stalks transported rearward by the conveyor device 40 to be efficiently transferred to the auger device 3C.

[0037] The conveyor device 40 is formed by a frame 41 extending in the front-to-rear direction at a predetermined interval in the left-to-right direction, a drive sprocket supported on a rotating shaft (the "second rotating shaft" in the claims) 42 installed at the rear of the frame 41 to which the output rotation of the engine is transmitted, a driven sprocket supported on a rotating shaft (the "first rotating shaft" in the claims) 43 installed at the front of the frame 41, and a chain wound around the drive sprocket and the driven sprocket.

[0038] The output rotation of the engine is transmitted to the rotary shaft 42 via a transmission part 42A that extends in the front-to-rear direction and is provided on the upper part of the left wall of the auger frame 60. The rotary shaft 42 is provided at the vertical center of the rear part of the frame 41, and the rotary shaft 43 is provided at the vertical center of the front part of the frame 41.

[0039] The chain is fitted with lugs 44 that transport the stalks at predetermined intervals. The lugs 44 extend upward from the upper end of the frame 41 and rotate between an active area where they transport the stalks while moving from the front to the rear of the frame 41, and a non-active area where they extend downward from the lower end of the frame 41 and move from the rear to the front of the frame 41. Figure 5 also shows the movement trajectory 45 of the tip of the lug 44.

[0040] In a side view, the tip of the lug 44, which moves from the rear to the front of the frame 41, moves above the rotary blade 22. This prevents the lug 44 from coming into contact with the rotary blade 22 and being cut.

[0041] In a side view, the tip of the lug 44, which moves from rear to front below the front side of the frame 41, moves below the field surface where the gauge wheels 51 of the gauge wheel device 50 move. This makes it possible to lift up the stalks that have completely fallen in the field and transport them from the front to the rear of the frame 41 to the auger device 3C, thereby reducing head loss.

[0042] In addition, in a side view, it is preferable that the lower end of the gauge wheel 51 of the gauge wheel device 50 is located above the tip of the lug 44 that moves from rear to front on the lower side of the front part of the frame 41, and the lower end of the front part of the rotary blade 22 of the rotary blade device 20 is located above the lower end of the gauge wheel 51. This makes it possible to raise the stalks completely lodged in the field, thereby reducing head loss and preventing damage to the rotary blade 22.

[0043] A divider 46 for dividing the stalks is provided at the front of the conveyor device 40, and a guide 47 for guiding the stalks transported by the conveyor device 40 to the auger device 3C is provided at the rear.

[0044] The guides 47 are provided on the left surface of the left frame 41 and on the right surface of the right frame 41. In a side view, the guide 47 extends upward along the upper part of the frame 41 to the front side of the raking auger 61 of the auger device 3C, and then downward, with the rear end of the guide 47 located rearward of the tip of the lug 44. This prevents the straw transported rearward by the conveyor device 40 from becoming entangled in the lug 44, and allows the straw to be efficiently handed over to the auger device 3C.

[0045] The right conveyor 40 of the left cutting device 3B and the left conveyor 40 of the right cutting device 3B are connected at their front-to-rear intermediate portions by a connecting member 48 made of round steel or the like extending in the left-right direction, and the connecting member 48 and the lower wall of the auger frame 60 are connected by a lifting device 48A such as a motor. This allows the conveyor 40 to move up and down along the unevenness of the field, preventing the front of the frame 41 from encroaching excessively into the field.

[0046] It is preferable to connect the conveyor device 40 and the rear part of the adjacent conveyor device 40, the left wall of the auger frame 60 and the rear part of the conveyor device 40, and the rear part of the conveyor device 40 and the right wall of the auger frame 60 with a plate-shaped or comb-shaped cover 49. This reduces the amount of straw that leaks into the field from the rear parts of the pair of left and right conveyor devices 40, etc., thereby suppressing head loss.

[0047] In a side view, the front end of the cover 49 is disposed close to the upper side of the rotary blade 22, and is formed so as to rise rearward from the front end of the cover 49 to the upper side of the rotary shaft 42, and then is formed so as to fall rearward. This prevents the straw transported rearward by the conveyor device 40 from becoming entangled in the cylinder that houses the rotary shaft 42, and allows it to be efficiently handed over to the auger device 3C.

[0048] It is preferable to provide a gauge wheel device 50 between the right conveyor device 40 of the left cutting device 3B and the left conveyor device 40 of the right cutting device 3B, which moves up and down along the unevenness of the field.

[0049] The gauge wheel device 50 is formed of a gauge wheel 51 that travels on the field and a frame 52 that supports the gauge wheel 51, and the rear part of the frame 52 is fixed to the connecting member 48 so as to be able to rotate freely.

[0050] <Cutting device of second embodiment> A cutting device 3B according to a second embodiment is shown in Fig. 7. The same parts and members as those of the cutting device 3B according to the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted.

[0051] As shown in Figure 7, the rotating shaft 42 is located at a position offset downward from the vertical center at the rear of the frame 41, and the rotating shaft 43 is located at the vertical center at the front of the frame 41, so that the length of the lug 44 extending upward from the upper end of the frame 41 as it moves from the front to the rear of the frame 41 can be shortened as it moves from the front to the rear of the frame 41. This further prevents the straw transported rearward by the conveyor device 40 from becoming entangled in the lug 44, allowing it to be efficiently handed over to the auger device 3C. Note that Figure 7 also shows a movement trajectory 45 of the tip of the lug 44 of the cutting device 3B of the first embodiment and a movement trajectory 45A of the tip of the lug 44 of the cutting device 3B of the second embodiment.

[0052] In addition, the rearward upward inclination angle of the upper part of the frame 41 can be made larger than the rearward upward inclination angle of the lower part, so that the length of the lug 44 extending upward from the upper end of the frame 41 as it moves from the front to the rear of the frame 41 becomes shorter as it moves from the front to the rear of the frame 41.

[0053] <Cutting device of third embodiment> A cutting device 3B according to a third embodiment is shown in Fig. 8. The same parts and members as those of the cutting device 3B according to the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted.

[0054] 8, in a side view, the front end of the cover 49 is disposed close to the upper side of the rotary blade 22, and extends upward from the front end of the cover 49, passes in front of the rotary shaft 42, and extends upward to the upper side of the guide 47, and then extends downward to the rear. This prevents the straw transported rearward by the conveyor device 40 from becoming entangled in the cylindrical body that houses the rotary shaft 42, and further prevents the straw from becoming entangled in the lug 44, allowing the straw to be efficiently handed over to the auger device 3C.

[0055] <Auger device> As shown in FIG. 6, the auger device 3C is composed of an auger frame 60 and a scraping auger 61 installed on the left and right walls of the auger frame 60.

[0056] The auger frame 60 is formed of a lower wall, a left wall erected on the left portion of the lower wall, a right wall erected on the right portion of the lower wall, and a rear wall connecting the rear portion of the lower wall to the left and right walls. An inlet (not shown) for transporting the stalks to the feeder house 3D is formed on the left side of the rear wall. In side view, the lower wall of the auger frame 60 is formed in a gently curved shape that protrudes downward.

[0057] A plurality of raking fingers 62 that can freely appear and disappear from the outer peripheral surface are provided on the left side of the outer peripheral surface of the raking auger 61. This allows the grain straw that has gathered in front of the inlet of the auger frame 60 to be efficiently transported to the feeder house 3D.

[0058] A plurality of conveying spirals 63 are provided on the right side of the outer peripheral surface of the raking auger 61. This allows the grain straw conveyed to the auger frame 60 to be efficiently gathered in front of the inlet.

[0059] <Feeder House> As shown in FIG. 2, the feeder house 3D is a device that connects the auger device 3C and the threshing device 4, and transports the stalks (material to be processed) transported to the left part of the auger frame 60 to the threshing device 4. [Explanation of symbols]

[0060] 1 Aircraft frame 2 Running gear 3 Pre-harvest processing equipment 3A scraping device 3B Cutting device 3C Auger Device 3D Feeder House 4. Threshing equipment 20 Rotary blade device 22 Rotary blade 30 Ground Sensor 40 Conveyor equipment 41 frames 42 Rotation axis (second rotation axis) 43 Rotation axis (first rotation axis) 44 Rug 47 Guide 49 Cover 50 gauge wheel device 51 Gauge Wheel 60 Ogre Frame 61 Raking Auger

Claims

1. A combine harvester having a traveling device (2) provided below a machine frame (1), a pre-harvesting device (3) provided in front of the machine frame (1), and a threshing device (4) provided behind the pre-harvesting device (3), The pre-harvesting treatment device (3) is composed of a raking device (3A) that transports the culms in the field backward while raising them upright, a cutting device (3B) that cuts the bases of the transported culms, an auger device (3C) that gathers the transported culms to one side, and a feeder house (3D) that transports the gathered culms to a threshing device (4), The cutting device (3B) is formed by a pair of left and right rotary blade devices (20) and a pair of left and right conveyor devices (40) arranged above the rotary blades (22) of the rotary blade devices (20), The conveyor device (40) includes a pair of left and right frames (41) each having a first rotating shaft (43) extending in the left-right direction at the front thereof and a second rotating shaft (42) extending in the left-right direction at the rear thereof, Lugs (44) are provided at predetermined intervals on a chain wound around the sprocket of the first rotating shaft (43) and the sprocket of the second rotating shaft (42), This combine harvester is characterized in that, when viewed from the side, the frame (41) is positioned with the rear raised, and the tip of a lug (44) that moves from rear to front along the underside of the front part of the frame (41) enters the field.

2. A gauge wheel device (50) is provided between the rotary blade device (20) arranged on the left side and the rotary blade device (20) arranged on the right side, A combine harvester as described in claim 1, wherein, in a side view, when the gauge wheel (51) of the gauge wheel device (50) is in contact with the field surface, the tip of the lug (44) is located below the field surface and the lower end of the rotary blade (22) is located above the field surface.

3. a ground sensor (30) for measuring the height of the lower wall of the auger frame (60) of the auger device (3C) and the field, provided on the rear side of the rotary blade device (20); 3. A combine harvester according to claim 2, wherein the pre-harvest treatment device (3) is raised and lowered in response to a measurement value of a ground contact sensor (30) to maintain the cutting device (3B) at a predetermined height above the field surface.

4. A guide (47) extending rearward is provided at the rear of the pair of left and right frames (41), A combine harvester according to any one of claims 1 to 3, wherein, in a side view, the rear end of the guide (47) is positioned rearward of the tip of the lug (44) that moves from top to bottom along the rear of the frame (41).

5. 5. A combine harvester according to claim 4, wherein the rear portion of the guide (47) extends rearward and downward and is located close to the front side of the raking auger (61) of the auger device (3C).

6. A combine harvester as described in claim 5, wherein the first rotating shaft (43) is provided at the center of the frame (41) in the vertical direction, and the second rotating shaft (42) is provided at a position offset downward from the center of the frame (41) in the vertical direction.

7. A combine harvester as described in claim 6, wherein a cover (49) is provided to cover the upper side of the second rotating shaft (42), and a portion of the cover (49) forward of the second rotating shaft (42) is formed to rise rearward, and a portion of the cover (49) rearward of the second rotating shaft (42) is formed to fall rearward.

Images