combine

Abstract

To provide a combine capable of reducing a discharge time by turning an upper part of a horizontal discharge part of a discharge auger.SOLUTION: A discharger auger (8) is formed of a vertical discharge part (8A) that turns around a shaft center extending vertically, and a horizontal discharge part (8B) extending forward from the upper part of the vertical discharge part (8A), whose front part is lifted or lowered in a vertical direction. A horizontal frame (47) extending in a right-left direction is provided on the back side of a grain tank (7). A base part (51) of a regulation member (50) for regulating the turning of the horizontal discharge part (8B) is fixed to the horizontal frame (47). A regulation part (52) of the regulation member (50) is arranged on the upper side of an upper wall of the grain tank (7). The regulation member (50) is configured so as not to pass through a specific virtual space in the periphery of an operation seat (5A) of an operation part (5).SELECTED DRAWING: Figure 10

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, in the technology of Patent Document 1, the horizontal discharge part of the discharge auger is restricted from rotating above the steering part. Therefore, when discharging grains to the outside, the horizontal discharge part needs to rotate counterclockwise around an axis extending in the vertical direction of the vertical discharge part of the discharge auger, which increases the time required for the discharge operation. Furthermore, if a sensor detecting the rotation angle breaks down, there is a risk that the horizontal discharge part will collide with the steering part.

[0005] The technology of Patent Document 2 has the problem that when discharging grains to the outside, the horizontal discharge section must be rotated counterclockwise around the axis extending in the vertical direction of the vertical discharge section of the discharge auger, which lengthens the discharging time. Furthermore, when the discharge auger is rotated counterclockwise to discharge grains and then rotated clockwise to return to the receiving table, the front of the horizontal discharge section is positioned lower than the rear, and the front is rotated downward. To prevent contact with the surrounding parts of the harvesting device or the machine body, a restricting member is provided on the grain lifting conveyor to restrict the rotation of the horizontal discharge section. Because the grain lifting conveyor is located between the threshing and sorting section and the grain tank, maintenance of the restricting member is cumbersome.

[0006] Therefore, a main object of the present invention is to propose a combine harvester in which the lateral discharge section of the discharge auger can be rotated above the steering section to shorten the discharge time. [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 in which a pre-harvesting device (3) for harvesting stalks is provided in front of a machine frame (1), a threshing device (4) is provided on the rear left side of the pre-harvesting device (3), a control section (5) is provided on the rear right side of the pre-harvesting device (3), a grain tank (7) for storing threshed grains is provided behind the control section (5), and a discharge auger (8) for discharging grains to the outside is provided behind the grain tank (7), The discharge auger (8) is formed by a vertical discharge section (8A) that rotates around an axis extending in the vertical direction, and a horizontal discharge section (8B) that extends forward from the upper part of the vertical discharge section (8A) and whose front part moves up and down in the vertical direction. A horizontal frame (47) extending in the left-right direction is provided at the rear of the grain tank (7). A base (51) of a regulating member (50) that regulates the rotation of the horizontal discharge section (8B) is fixed to the horizontal frame (47). A regulating portion (52) of the regulating member (50) is arranged above the upper wall of the grain tank (7). The regulating member (50) is configured so as not to pass through a specific virtual space around the cockpit (5A) of the operating section (5). The regulating portion (52) is formed by a left leg extending in the vertical direction, a right leg extending in the vertical direction, and a connecting portion extending in the horizontal direction connecting the upper ends of the left leg and the right leg, and in a plan view, the connecting portion is provided at a predetermined intersecting angle with the lateral discharge portion (8B) of the discharge auger (8). The regulating portion (52) is formed by inserting the lower portions of the left leg and the right leg of the regulating portion (52) into an opening (51A) at the top of the base (51), and fastening a fixing member (51B) of the base (51) and an attachment member (53) of the regulating portion (52). This is a combine harvester characterized by the above.

[0008] The invention described in claim 2 is a combine harvester having a pre-harvesting treatment device (3) for harvesting stalks provided in front of a machine frame (1), a threshing device (4) provided on the rear left side of the pre-harvesting treatment device (3), a control unit (5) provided on the rear right side of the pre-harvesting treatment device (3), a grain tank (7) for storing threshed grain provided behind the control unit (5), and a discharge auger (8) for discharging grain to the outside provided behind the grain tank (7), The discharge auger (8) is formed of a vertical discharge section (8A) that rotates around an axis extending in the vertical direction, and a horizontal discharge section (8B) that extends forward from the upper part of the vertical discharge section (8A) and has a front section that moves up and down in the vertical direction. A sun visor (30) is provided above the operating section (5), a horizontal frame (47) that extends in the left-right direction is provided behind the grain tank (7), and a base for a restricting member (50) that restricts the rotation of the horizontal discharge section (8B). The restricting portion (51) of the restricting member (50) is fixed to the horizontal frame (47), and the restricting portion (52) of the restricting member (50) is disposed above the upper wall of the grain tank (7). In a side view, the upper end of the restricting portion (52) 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). The regulating portion (52) is formed by a left leg extending in the vertical direction, a right leg extending in the vertical direction, and a connecting portion extending in the horizontal direction connecting the upper ends of the left leg and the right leg, and in a plan view, the connecting portion is provided at a predetermined intersecting angle with the lateral discharge portion (8B) of the discharge auger (8). The regulating portion (52) is formed by inserting the lower portions of the left leg and the right leg of the regulating portion (52) into an opening (51A) at the top of the base (51), and fastening a fixing member (51B) of the base (51) and an attachment member (53) of the regulating portion (52). A combine harvester characterized by is.

[0009] The invention described in claim 3 is a combine harvester having a pre-harvesting treatment device (3) for harvesting stalks provided in front of a machine frame (1), a threshing device (4) provided on the rear left side of the pre-harvesting treatment device (3), a control unit (5) provided on the rear right side of the pre-harvesting treatment device (3), a grain tank (7) for storing threshed grain provided behind the control unit (5), and a discharge auger (8) for discharging grain to the outside provided behind the grain tank (7), The discharge auger (8) is formed by a vertical discharge section (8A) that rotates around an axis extending in the vertical direction, and a horizontal discharge section (8B) that extends forward from the upper part of the vertical discharge section (8A) and has a front part that moves up and down in the vertical direction. A cabin (32) is provided to cover the operation section (5). A horizontal frame (47) that extends in the left-right direction is provided at the rear of the grain tank (7). A base (51) of a regulating member (50) that regulates the rotation of the horizontal discharge section (8B) is fixed to the horizontal frame (47). A regulating section (52) of the regulating member (50) is arranged above the upper wall of the grain tank (7). In a side view, the upper end of the regulating section (52) is positioned above an imaginary line (L) that passes through a rotation axis that extends in the left-right direction of a 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 cabin (32). The regulating portion (52) is formed by a left leg extending in the vertical direction, a right leg extending in the vertical direction, and a connecting portion extending in the horizontal direction connecting the upper ends of the left leg and the right leg, and in a plan view, the connecting portion is provided at a predetermined intersecting angle with the lateral discharge portion (8B) of the discharge auger (8). The regulating portion (52) is formed by inserting the lower portions of the left leg and the right leg of the regulating portion (52) into an opening (51A) at the top of the base (51), and fastening a fixing member (51B) of the base (51) and an attachment member (53) of the regulating portion (52). This is a combine harvester characterized by the above.

[0010] The invention described in claim 4 is a combine harvester having a pre-harvesting treatment device (3) for harvesting stalks provided in front of a machine frame (1), a threshing device (4) provided on the rear left side of the pre-harvesting treatment device (3), a control unit (5) provided on the rear right side of the pre-harvesting treatment device (3), a grain tank (7) for storing threshed grain provided behind the control unit (5), and a discharge auger (8) for discharging grain to the outside provided behind the grain tank (7), The discharge auger (8) is formed by a vertical discharge section (8A) that rotates around an axis extending in the vertical direction, and a horizontal discharge section (8B) that extends forward from the upper part of the vertical discharge section (8A) and has a front section that moves up and down in the vertical direction. A horizontal frame (47) that extends in the left-right direction is provided at the rear of the grain tank (7). A base (51) of a regulating member (50) that regulates the rotation of the horizontal discharge section (8B) is fixed to the horizontal frame (47). A regulating section (52) of the regulating member (50) is arranged above the upper wall of the grain tank (7). In a side view, the upper end of the regulating section (52) is positioned above an imaginary line (L) that passes through a rotation axis that extends in the left-right direction of a 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 driver's seat (5A) of the control section (5). The regulating portion (52) is formed by a left leg extending in the vertical direction, a right leg extending in the vertical direction, and a connecting portion extending in the horizontal direction connecting the upper ends of the left leg and the right leg, and in a plan view, the connecting portion is provided at a predetermined intersecting angle with the lateral discharge portion (8B) of the discharge auger (8). The regulating portion (52) is formed by inserting the lower portions of the left leg and the right leg of the regulating portion (52) into an opening (51A) at the top of the base (51), and fastening a fixing member (51B) of the base (51) and an attachment member (53) of the regulating portion (52). A combine harvester characterized by is.

[0011]

[0012] Claim 5 The invention described in claim 1 is characterized in that the horizontal frame (47) is fixed to a vertical frame (46) extending downward and erected on the machine frame (1) supporting a support member (45) supporting the vertical discharge portion (8A). 1 The combine harvester described above.

[0013] Claim 6 The invention described in claim 1 is characterized in that the left part of the horizontal frame (47) is connected to the right wall of the threshing device (4). 5 The combine harvester described above.

[0014]

[0015] Claim 7 The invention described in claim 1 is characterized in that the restricting portion (52) is provided at a position on the left side of the vertical discharge portion (8A) at the rear of the upper wall of the grain tank (7) in a plan view. 1 The combine harvester described above. [Effects of the Invention]

[0016] According to the invention of claim 1, the discharge auger (8) is formed by a vertical discharge part (8A) that rotates around an axis extending in the vertical direction, and a horizontal discharge part (8B) that extends forward from the upper part of the vertical discharge part (8A) and whose front part moves up and down in the vertical direction. A horizontal frame (47) extending in the left-right direction is provided at the rear of the grain tank (7), and a base part (51) of a regulating member (50) that regulates the rotation of the horizontal discharge part (8B) is fixed to the horizontal frame (47), and a regulating part (52) of the regulating member (50) is arranged above the upper wall of the grain tank (7), and the regulating member (50) is configured so as not to pass through a specific virtual space around the driver's seat (5A) of the control section (5). The restricting portion (52) is formed by a left leg extending in the vertical direction, a right leg extending in the vertical direction, and a connecting portion extending in the horizontal direction connecting the upper ends of the left leg and the right leg, and in a plan view, the connecting portion is provided at a predetermined intersecting angle with the lateral discharge portion (8B) of the discharge auger (8). The restricting portion (52) is formed by inserting the lower portions of the left leg and the right leg into an opening (51A) at the top of the base (51), and fastening a fixing member (51B) of the base (51) and an attachment member (53) of the restricting portion (52). Therefore, contact with the operator or components around the operator's seat (5A) can be prevented, and the lateral discharge portion (8B) of the discharge auger (8) can be moved above the operator's seat (5A) to shorten the discharge time. In addition, since the regulating member (50) is provided on the lateral frame (47) at the rear of the grain tank (7), maintenance of the regulating member (50) can be easily performed. Furthermore, the discharge auger (8) can be easily moved to the storage position by moving the lateral discharge portion (8B) of the discharge auger (8) from the right side to the left side along the upper part of the connection portion of the regulating portion (52), and if the regulating portion (52) of the regulating member (50) is deformed or the like, the regulating portion (52) can be easily replaced.

[0017] According to the invention of claim 2, the discharge auger (8) is formed by a vertical discharge section (8A) that rotates around an axis extending in the vertical direction, and a horizontal discharge section (8B) that extends forward from the upper part of the vertical discharge section (8A) and has a front part that moves up and down in the vertical direction, a sun visor (30) is provided above the operating section (5), a horizontal frame (47) that extends in the left-right direction is provided behind the grain tank (7), a base (51) of a regulating member (50) that regulates the rotation of the horizontal discharge section (8B) is fixed to the horizontal frame (47), and a regulating section (52) of the regulating member (50) is arranged above the upper wall of the grain tank (7), and in a side view, the upper end of the regulating section (52) is positioned above an imaginary line (L) that passes through a rotation axis that extends in the left-right direction of a 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). The restricting portion (52) is formed by a left leg extending in the vertical direction, a right leg extending in the vertical direction, and a connecting portion extending in the horizontal direction connecting the upper ends of the left leg and the right leg, and in a plan view, the connecting portion is provided at a predetermined intersecting angle with the lateral discharge portion (8B) of the discharge auger (8). The restricting portion (52) is formed by inserting the lower portions of the left leg and the right leg into an opening (51A) at the top of the base (51), and fastening a fixing member (51B) of the base (51) and an attachment member (53) of the restricting portion (52). Therefore, contact between the lateral discharge portion (8B) of the discharge auger (8) and the sun visor (30) can be prevented, and the lateral discharge portion (8B) of the discharge auger (8) can be moved above the sun visor (30), thereby shortening the discharge time. In addition, the discharge auger (8) can be easily moved to the storage position by moving the lateral discharge portion (8B) of the discharge auger (8) from the right side to the left side along the upper part of the connection portion of the regulating portion (52), and if the regulating portion (52) of the regulating member (50) is deformed, the regulating portion (52) can be easily replaced.

[0018] According to the invention of claim 3, the discharge auger (8) is formed of a vertical discharge section (8A) that rotates around an axis extending in the vertical direction, and a horizontal discharge section (8B) that extends forward from the upper part of the vertical discharge section (8A) and has a front part that moves up and down in the vertical direction, a cabin (32) that covers the operation section (5) is provided, a horizontal frame (47) that extends in the left-right direction is provided at the rear of the grain tank (7), a base (51) of a regulating member (50) that regulates the rotation of the horizontal discharge section (8B) is fixed to the horizontal frame (47), and a regulating section (52) of the regulating member (50) is arranged above the upper wall of the grain tank (7), and in a side view, the upper end of the regulating section (52) is positioned above an imaginary line (L) that passes through a rotation axis that extends in the left-right direction of a 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 cabin (32). The restricting portion (52) is formed by a left leg extending in the vertical direction, a right leg extending in the vertical direction, and a connecting portion extending in the horizontal direction connecting the upper ends of the left leg and the right leg, and in a plan view, the connecting portion is provided at a predetermined intersecting angle with the lateral discharge portion (8B) of the discharge auger (8). The restricting portion (52) is formed by inserting the lower portions of the left leg and the right leg into an opening (51A) at the top of the base (51), and fastening a fixing member (51B) of the base (51) and an attachment member (53) of the restricting portion (52).Therefore, contact between the lateral discharge portion (8B) of the discharge auger (8) and the cabin (32) can be prevented, and the lateral discharge portion (8B) of the discharge auger (8) can be moved above the cabin (32), thereby shortening the discharge time. In addition, the discharge auger (8) can be easily moved to the storage position by moving the lateral discharge portion (8B) of the discharge auger (8) from the right side to the left side along the upper part of the connection portion of the regulating portion (52), and if the regulating portion (52) of the regulating member (50) is deformed, the regulating portion (52) can be easily replaced.

[0019] According to the invention of claim 4, the discharge auger (8) is formed by a vertical discharge section (8A) that rotates around an axis extending in the vertical direction, and a horizontal discharge section (8B) that extends forward from the upper part of the vertical discharge section (8A) and has a front part that moves up and down in the vertical direction, a horizontal frame (47) that extends in the left-right direction is provided at the rear of the grain tank (7), a base (51) of a regulating member (50) that regulates the rotation of the horizontal discharge section (8B) is fixed to the horizontal frame (47), and a regulating section (52) of the regulating member (50) is arranged above the upper wall of the grain tank (7), and in a side view, the upper end of the regulating section (52) is positioned above an imaginary line (L) that passes through a rotation axis that extends in the left-right direction of a 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 driver's seat (5A) of the operating section (5). The restricting portion (52) is formed by a left leg extending in the vertical direction, a right leg extending in the vertical direction, and a connecting portion extending in the horizontal direction connecting the upper ends of the left leg and the right leg, and in a plan view, the connecting portion is provided at a predetermined intersecting angle with the lateral discharge portion (8B) of the discharge auger (8). The restricting portion (52) is formed by inserting the lower portions of the left leg and the right leg into an opening (51A) at the top of the base (51), and fastening a fixing member (51B) of the base (51) and an attachment member (53) of the restricting portion (52). Therefore, contact between the lateral discharge portion (8B) of the discharge auger (8) and the driver's seat (5A) can be prevented, and the lateral discharge portion (8B) of the discharge auger (8) can be moved above the driver's seat (5A), thereby shortening the discharge time. In addition, the discharge auger (8) can be easily moved to the storage position by moving the lateral discharge portion (8B) of the discharge auger (8) from the right side to the left side along the upper part of the connection portion of the regulating portion (52), and if the regulating portion (52) of the regulating member (50) is deformed, the regulating portion (52) can be easily replaced.

[0020]

[0021] Claim 5 According to the invention described, claims 1 In addition to the effects of the described invention, the horizontal frame (47) is fixed to a downwardly extending vertical frame (46) that is erected on the body frame (1) that supports the support member (45) that supports the vertical discharge section (8A). Therefore, by disconnecting the horizontal frame (47) from the rear wall of the grain tank (7), the front part of the grain tank (7) can be moved to the right side of the body frame (1) around the rotating support shaft to put it in an open position, making it easy to perform maintenance on the grain tank (7).

[0022] Claim 6 According to the invention described, claims 5In addition to the effects of the invention described above, the left part of the horizontal frame (47) is connected to the right wall of the threshing device (4), thereby increasing the rigidity of the horizontal frame (47) and firmly supporting the regulating member (50).

[0023]

[0024] Claim 7 According to the invention described, claims 1 In addition to the effects of the invention described above, the regulating portion (52) is provided to the left of the vertical discharge portion (8A) at the rear of the upper wall of the grain tank (7) when viewed in plan, so that if the discharge auger (8) moves out of its storage position due to vibrations during driving, etc., the horizontal discharge portion (8B) can be prevented from coming into contact with the sun visor (30), cabin (32), or cockpit (5A). [Brief explanation of the drawings]

[0025] [Figure 1] 1 is a perspective view of a combine harvester according to a first embodiment, viewed from the rear left side. FIG. [Figure 2] FIG. [Figure 3] FIG. [Figure 4] FIG. [Figure 5] FIG. [Figure 6] This is a rear view of the main parts of the combine harvester with the sun visor moved upward. [Figure 7] FIG. 2 is a longitudinal cross-sectional view of the threshing device in the front-to-rear direction. [Figure 8] FIG. 10 is a perspective view of the connection portion of the discharge auger as viewed from the rear right side. [Figure 9] FIG. 10 is a plan view of the connection portion of the discharge auger. [Figure 10] FIG. 2 is a perspective view of the restricting member of the first embodiment as viewed from the rear left side. [Figure 11] FIG. 2 is a perspective view of the restricting member as viewed from the rear left side. [Figure 12] FIG. 2 is a perspective view of the restricting member as viewed from the rear left side. [Figure 13] FIG. 4 is a perspective view of the first restricting member as viewed from the rear left side. [Figure 14] FIG. 10 is a perspective view of the restricting member with the restricting portion and the base portion separated from each other, as viewed from the rear left side. [Figure 15] FIG. 10 is a perspective view of the second restricting member as viewed from the rear left side. [Figure 16] FIG. 2 is a perspective view of the restricting member as viewed from the front right side. [Figure 17] FIG. 2 is a plan view of the main parts of the combine harvester. [Figure 18] FIG. 1 is a plan view of a combine harvester in which the vertical discharge portion of the discharge auger is rotated clockwise. [Figure 19] 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 20] FIG. 10 is a front view of a combine harvester according to a second embodiment. [Figure 21] FIG. 10 is a front view of a combine harvester according to a third embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0026] As shown in Figures 1 to 5, 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.

[0027] 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.

[0028] The pre-harvest processing device 3 is composed of a raking device 3A that transports the stalks in the field to the rear while standing them up, a cutting blade device 3B that cuts the base of the stalks transported to the lower rear side of the raking device 3A, an auger device 3C that gathers the stalks transported to the rear side of the raking device 3A to the left side, and a feeder house 3D that transports the gathered stalks to the threshing device 4.

[0029] The discharge auger 8 is composed 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 from the top of the vertical discharge section 8A toward the front left side, and a discharge section 8C at the front end of the horizontal discharge section 8B that discharges grains.

[0030] A sun visor 30 is provided above the control section 5. This can protect the operator of the control section 5 from direct sunlight and rainwater.

[0031] As shown in Figure 6, the sun visor 30 is supported so as to be movable in the vertical direction by a support member 31 extending in the vertical direction and 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 physique of the worker.

[0032] As shown in FIG. 7, the threshing device 4 is formed of a threshing chamber 10 for threshing stalks and a sorting chamber 20 for sorting the threshed grains.

[0033] A threshing drum 11 for threshing the stalks transported from the feeder house 3D is installed on the front and rear walls of the threshing chamber 10, and a receiving net 12 formed in a semicircular arc along the lower outer periphery of the threshing drum 11 is installed on the underside of the threshing drum 11. The top of the threshing drum 11 is covered with an openable threshing drum cover 13, and a dust conveying plate is installed on the inner periphery of the threshing drum cover 13 to guide the stalks to the rear of the threshing chamber 10. The threshing drum 11 is supported by a rotor shaft 14 extending in the front-to-rear direction.

[0034] An oscillating sorting device 21 is provided above the sorting chamber 20 to sort the grains leaking from the handling chamber 10. The lower part of the oscillating sorting device 21 is provided, in this order from the front, with a winnower 25 that blows sorting air into the oscillating sorting device 21, a wind divider 26 that changes the blowing direction of the sorting air behind the winnower 25, a first spiral 27 that transports the grains leaking from the oscillating sorting device 21 to the grain tank 7, and a second spiral 28 that re-transports grains with attached rachis branches and broken culms that leak from the rear of the oscillating sorting device 21 to the sorting shelf at the front of the oscillating sorting device 21.

[0035] 5 and other figures, a protective cover 36 is provided below the vertical discharge portion 8A of the discharge auger 8 to cover an electric motor 35 (not shown) that rotates a gear formed on the outer periphery of the vertical discharge portion 8A. This allows the electric motor 35 to rotate the vertical discharge portion 8A clockwise or counterclockwise when viewed from the axis extending in the up-down direction of the vertical discharge portion 8A.

[0036] 8 and 9, the upper part of the vertical discharge section 8A of the discharge auger 8 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.

[0037] A substantially L-shaped suspension member 41 is provided on the right side of the rear of the lateral discharge section 8B. The suspension member 41 is formed of left and right suspension sections 41A extending rightward from the lateral discharge section 8B, and front and rear suspension sections 41B extending rearward from the right sides of the left and right suspension sections 41A.

[0038] Cylinders 42 that raise and lower the front portion of the lateral discharge section 8B are provided at the middle portion of the left and right suspension sections 41A and at the front portion of the upper portion of the vertical discharge section 8A. The rear portions of the front and rear suspension sections 41B are rotatably supported by 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 of the connecting section 40 extending in the left-right direction, 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 of the connecting section 40 extending in the left-right direction, and the front portion of the lateral discharge section 8B falls.

[0039] As shown in FIGS. 10 to 12, the upper part of the vertical discharge section 8A is rotatably fitted into a support member 45, and the front part of the support member 45 is fixed to a vertical frame 46 extending vertically from the machine frame 1.

[0040] A horizontal frame 47 extending in the left-right direction is fixed to the upper part of the vertical frame 46. The left part of the horizontal frame 47 is connected to the right wall of the threshing device 4, and the horizontal frame 47 is detachably connected to the rear wall of the grain tank 7 by connecting members such as bolts. This allows the connection between the horizontal frame 47 and the rear wall of the grain tank 7 to be released, and the front part of the grain tank 7 to be moved to the right side of the machine frame 1 around a rotating support shaft (not shown) erected on the rear side of the grain tank 7 on the machine frame 1, placing it in an open position, making it easy to perform maintenance on the grain tank 7.

[0041] In this embodiment, the upper parts of the horizontal frame 47 and the vertical frame 46 are fixed, and the horizontal frame 47 and the rear wall of the grain tank 7 are detachably connected, but the upper parts of the horizontal frame 47 and the vertical frame 46 can also be detachably connected to fix the horizontal frame 47 and the rear wall of the grain tank 7, or the upper parts of the horizontal frame 47 and the vertical frame 46 can be spaced a predetermined distance apart to fix the horizontal frame 47 and the rear wall of the grain tank 7.

[0042] In rear view, a restricting member 50 that restricts the rotation of the horizontal discharge section 8B is provided on the left side of the vertical discharge section 8A on the horizontal frame 47. The restricting member 50 is formed of a base 51 fixed to the horizontal frame 47 and a restricting part 52 made of pipe steel or round steel that is connected to the upper part of the base 51.

[0043] When the connection between the horizontal frame 47 and the rear wall of the grain tank 7 is released and the grain tank 7 is opened to the side of the aircraft, the restricting member 50 does not move, so even if the discharge auger 8 is rotated when the grain tank 7 is opened, the horizontal discharge part 8B does not pass through a specific virtual space around the cockpit 5A. This prevents accidental contact between the horizontal discharge part 8B and the pilot or the peripheral parts of the cockpit 5A during inspection. In addition, since the restricting member 50 is provided on the horizontal frame 47 at the rear of the grain tank 7, maintenance of the restricting member 50 can be easily performed.

[0044] The regulating portion 52 is formed from a first extension portion 52A that extends upward from the base 51 along the rear wall of the grain tank 7 and then curves forward, a second extension portion 52B that extends forward from the front end of the first extension portion 52A along the upper wall of the grain tank 7, and a third extension portion 52C that extends upward from the front end of the second extension portion 52B.

[0045] The third extending portion 52C is disposed near the pivot point for the lifting and lowering of the lateral discharge portion 8B, thereby making it possible to reduce the vertical height of the third extending portion 52C.

[0046] <Regulating member of the first embodiment> As shown in FIGS. 13 and 14, the restricting member 50 is formed of a base portion 51 and a restricting portion 52, and the restricting portion 52 is formed of a first extending portion 52A, a second extending portion 52B, and a third extending portion 52C.

[0047] By changing the shapes of the first extension portion 52A, the second extension portion 52B, and the third extension portion 52C, the range for restricting the rotation of the lateral discharge portion 8B can be set as desired. That is, by changing the shape (part change) of the restricting member 50, it can be set so that it does not pass through a specific virtual space around the cockpit 5A of the control unit 5. As a result, the lateral discharge portion 8B of the discharge auger 8 does not pass through the specific virtual space around the cockpit 5A, preventing contact with the operator or peripheral components of the cockpit 5A, and the lateral discharge portion 8B of the discharge auger 8 can be moved above the cockpit 5A to shorten the discharge time.

[0048] An opening 51A into which the lower portions of the pair of left and right first extending portions 52A of the restricting portion 52 are inserted is formed in the upper portion of the base 51, and a fixing member 51B that detachably fixes the mounting member 53 extending rearward from the lower portions of the first extending portions 52A with a fastening part such as a bolt is formed in the upper portion of the rear surface of the base 51. This allows the first extending portions 52A of the restricting portion 52 to be firmly fixed to the upper portion of the base 51.

[0049] The front portions of the pair of left and right first extending portions 52A of the restricting portion 52 and the lower portion of the second extending portion 52B are connected by a reinforcing member 54 such as a rib. This makes it possible to prevent large deformation of the second extending portion 52B even if the discharge auger 8 collides with the third extending portion 52C and a large external force acts on the third extending portion 52C when the discharge auger 8 is stored.

[0050] A protective member 55 is provided on the upper portion of the pair of left and right second extension portions 52B, extending from the second extension portion 52B to the right along the upper wall of the grain tank 7. This prevents contact between the upper wall of the grain tank 7 and the lateral discharge portion 8B of the discharge auger 8.

[0051] The third extension portion 52C is formed from a left leg extending upward from the front end of the second extension portion 52B on the left side, a right leg extending upward from the front end of the second extension portion 52B on the right side, and a connecting portion connecting the upper parts of the left leg and the right leg.

[0052] The left and right legs are formed at the same height, and the connecting portion is formed in a roughly semicircular arc shape. A horizontal portion parallel to the upper wall of the grain tank 7 is formed in the center of the connecting portion. This allows the rotational torque of the electric motor 35 that moves the lateral discharge portion 8B to the left along the connecting portion to be roughly the same as the rotational torque of the electric motor 35 that moves it to the right, making it possible to use a smaller electric motor 35 than conventionally. In this specification, the stored position of the discharge auger 8 refers to a position in which the front portion of the lateral discharge portion 50B is placed on the receiving stand 4A provided on the upper wall of the threshing device 4.

[0053] When the discharge auger 8 is stored in the receiving base 4A, a predetermined gap is provided between the lateral discharge portion 50B and the regulating member 50. This prevents problems such as deformation caused by load acting on the regulating member 50 or the members supporting the regulating member 50.

[0054] <Regulating member of second embodiment> 15 and 16 show a restricting member according to the second embodiment. Note that the same parts as those in the restricting member according to the first embodiment are given the same reference numerals and the description thereof will be omitted.

[0055] As shown in Figures 15 and 16, the regulating member of the second embodiment is formed from a base portion 51 and a regulating portion 52, and the regulating portion 52 is formed from a first extension portion 52A formed by bending a plate-shaped member into an approximately L-shape, and a second extension portion 52B and a third extension portion 52C made of pipe steel or round steel.

[0056] A step (not shown) into which the lower end of the first extending portion 52A of the restricting portion 52 fits is formed on the upper part of the base 51, and a fixing member 51B that detachably fixes the mounting member 53 extending rearward from the lower part of the first extending portion 52A with a fastening part such as a bolt is formed on the upper part of the rear surface of the base 51. This allows the first extending portion 52A of the restricting portion 52 to be firmly fixed to the upper part of the base 51.

[0057] Both side portions of the upper plate and rear plate of the first extension portion 52A are connected by reinforcing members 54, which are plate-like members formed into a substantially L-shape, and the pair of left and right second extension portions 52B are fixed to the lower surface of the upper plate of the first extension portion 52A at a predetermined interval in the left-right direction. This makes it possible to prevent large deformation of the second extension portions 52B even if the discharge auger 8 collides with the third extension portion 52C and a large external force acts on the third extension portion 52C when the discharge auger 8 is stored.

[0058] The third extension portion 52C is formed from a left leg extending upward from the front end of the second extension portion 52B on the left side, a right leg extending upward from the front end of the second extension portion 52B on the right side, and a connecting portion connecting the upper parts of the left leg and the right leg.

[0059] The left and right legs are formed to the same height, and the connecting portion is formed in a roughly semicircular arc shape. In addition, a horizontal portion is formed in the center of the connecting portion that is parallel to the upper wall of the grain tank 7. This allows the electric motor 35 that rotates the vertical discharge portion 8A to be changed to a smaller electric motor 35 than conventional ones.

[0060] 17, the connecting portion of the third extending portion 52C of the restricting member 52 is preferably set at a predetermined intersection angle with the lateral discharge portion 8B, i.e., the front intersection angle is preferably set at an acute angle to a right angle, for example, 60 to 90 degrees, and the rear intersection angle is preferably set at an obtuse angle to a right angle, for example, 120 to 90 degrees. Furthermore, the connecting portion 50C of the restricting member 50 is preferably set at a right angle to the lateral discharge portion 8B, so that the front intersection angle is a right angle and the rear intersection angle is also a right angle. In addition, the left leg of the third extending portion 52C is provided proximal to the lateral discharge portion 8B, and the right leg is provided distal to the lateral discharge portion 8B. This allows the lateral discharge portion 8B to be moved from right to left along the upper portion of the connecting portion of the third extending portion 52C, making it easier to move the discharge auger 8 to the storage position.

[0061] 18, in a plan view, the left part of the left leg of the third extension part 52C is provided on an imaginary line M where the vertical discharge part 8A of the discharge auger 8 rotates and the axis extending in the front-to-rear direction of the lateral discharge part 8B comes into contact with 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 rotated clockwise.

[0062] 19, in a side view, the upper end of the left leg of the third extending portion 52C extends above the axis extending in the left-right direction of the left connecting portion 40B, i.e., above an imaginary line L that passes through a straight line extending in the left-right direction passing through the center of the connecting member 40C and the upper end of the rear portion of the sun visor 30. Note that FIG. 19 illustrates the sun visor 30 in a state in which it has been moved to the uppermost position of the support member 31. This makes it possible to prevent the lateral discharge portion 8B from colliding with the sun visor 30 when the lateral discharge portion 8B is rotated clockwise when viewed from the axis extending in the up-down direction of the vertical discharge portion 8A of the discharge auger 8 after the front portion of the lateral discharge portion 8B has been raised from the storage position.

[0063] When the grain tank 7 becomes full of grain, the discharge auger 8 is placed in the storage position and the traveling device 2 is driven to move toward a discharge point located on the outer periphery of the field, and then the electric motor 35 and cylinder 42 are driven to raise and rotate the discharge auger 8, moving the discharge section 8C located in front of the lateral discharge section 8B of the discharge auger 8 above the truck bed to discharge the grain.

[0064] <Combine Harvester of Second Embodiment> A combine harvester according to a second embodiment is shown in Figure 20. Note that the same parts as those in the combine harvester according to the first embodiment are given the same reference numerals and the description thereof will be omitted.

[0065] As shown in Figure 20, the sun visor 30 is not provided above the control unit 5 of the combine harvester of the second embodiment. In this case, the left portion of the left leg of the third extension portion 52C of the regulating portion 52 is formed on an imaginary line M that passes through an axis extending in the front-rear direction of the lateral discharge portion 8B and the left portion of the backrest of the driver's seat 5A of the control unit 5, and the upper end of the right leg of the third extension portion 52C is formed to extend above an imaginary line L that passes through an axis extending in the left-right direction of the left connecting portion 40B and the upper end of the backrest of the driver's seat 5A of the control unit 5. This prevents the lateral discharge portion 8B from colliding with the backrest of the driver's seat 5A when the front portion of the lateral discharge portion 8B is raised from the storage position and then the lateral discharge portion 8B is rotated clockwise when viewed from the axis extending in the up-down direction of the vertical discharge portion 8A of the discharge auger 8. It is also possible to form the shape of the restricting member 50 so that it does not pass through a specific virtual space around the cockpit 5A, without specifying a component that constitutes the cockpit 5A, such as a seat back.

[0066] <Combine Harvester of Third Embodiment> A combine harvester according to a third embodiment is shown in Figure 21. Note that the same parts as those in the combine harvester according to the first embodiment are given the same reference numerals and the description thereof will be omitted.

[0067] 21, the steering section 5 of the combine harvester of the third embodiment is covered by a cabin 32 having a substantially rectangular parallelepiped shape formed by front and rear walls, left and right walls, and an upper wall. In this case, the left portion of the left leg of the third extension portion 52C of the restricting portion 52 is formed on an imaginary line M that passes through an axis extending in the front-rear direction of the lateral discharge portion 8B and the left side of the rear of the cabin 32, and the upper end of the right leg of the third extension portion 52C is formed to extend above an imaginary line L that passes through an axis extending in the left-right direction of the left connecting portion 40B and the upper end of the rear of the cabin 32. This prevents the lateral discharge portion 8B from colliding with the cabin 32 when the lateral discharge portion 8B is rotated clockwise when viewed from the axis extending in the up-down direction of the vertical discharge portion 8A of the discharge auger 8 after the front portion of the lateral discharge portion 8B is raised from the storage position. [Explanation of symbols]

[0068] 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 30 Sun visor 32 Cabin 40 Connection part 45 Support member 46 Vertical Frame 47 Horizontal Frame 50 Regulatory components 51 Base 51A opening 51B Fixing member 52 Regulatory Department 53 Mounting member L Virtual Line

Claims

1. A combine harvester having a pre-harvesting treatment device (3) for harvesting stalks provided in front of a body frame (1), a threshing device (4) provided on the rear left side of the pre-harvesting treatment device (3), a control section (5) provided on the rear right side of the pre-harvesting treatment device (3), a grain tank (7) for storing threshed grain provided behind the control section (5), and a discharge auger (8) for discharging the grain to the outside provided behind the grain tank (7), The discharge auger (8) is formed of a vertical discharge section (8A) that rotates around an axis extending in the vertical direction, and a horizontal discharge section (8B) that extends forward from an upper portion of the vertical discharge section (8A) and has a front portion that moves up and down in the vertical direction, A horizontal frame (47) extending in the left-right direction is provided on the rear side of the grain tank (7), a base (51) of a regulating member (50) for regulating the rotation of the lateral discharge portion (8B) is fixed to the lateral frame (47), and a regulating portion (52) of the regulating member (50) is disposed above the upper wall of the grain tank (7); The restricting member (50) is configured so as not to pass through a specific virtual space around a cockpit (5A) of the control section (5), The restricting portion (52) is formed by a left leg extending in the vertical direction, a right leg extending in the vertical direction, and a connecting portion extending in the horizontal direction that connects the upper ends of the left leg and the right leg, In a plan view, the connection portion is provided at a predetermined crossing angle with respect to the lateral discharge portion (8B) of the discharge auger (8), A combine harvester characterized in that the lower parts of the left and right legs of the regulating part (52) are inserted into an opening (51A) at the top of the base (51), and the fixing member (51B) of the base (51) and the mounting member (53) of the regulating part (52) are fastened together.

2. A combine harvester having a pre-harvesting treatment device (3) for harvesting stalks provided in front of a body frame (1), a threshing device (4) provided on the rear left side of the pre-harvesting treatment device (3), a control section (5) provided on the rear right side of the pre-harvesting treatment device (3), a grain tank (7) for storing threshed grain provided behind the control section (5), and a discharge auger (8) for discharging the grain to the outside provided behind the grain tank (7), The discharge auger (8) is formed of a vertical discharge section (8A) that rotates around an axis extending in the vertical direction, and a horizontal discharge section (8B) that extends forward from an upper portion of the vertical discharge section (8A) and has a front portion that moves up and down in the vertical direction, A sun visor (30) is provided above the control section (5), A horizontal frame (47) extending in the left-right direction is provided on the rear side of the grain tank (7), a base (51) of a regulating member (50) for regulating the rotation of the lateral discharge portion (8B) is fixed to the lateral frame (47), and a regulating portion (52) of the regulating member (50) is disposed above the upper wall of the grain tank (7); In a side view, the upper end of the regulating portion (52) is positioned above an imaginary line (L) passing through a rotation axis extending in the left-right direction of a connecting portion (40) connecting an upper portion of the vertical discharge portion (8A) and a rear portion of the horizontal discharge portion (8B) and the upper end of the rear portion of the sun visor (30), The restricting portion (52) is formed by a left leg extending in the vertical direction, a right leg extending in the vertical direction, and a connecting portion extending in the horizontal direction that connects the upper ends of the left leg and the right leg, In a plan view, the connection portion is provided at a predetermined crossing angle with respect to the lateral discharge portion (8B) of the discharge auger (8), A combine harvester characterized in that the lower parts of the left and right legs of the regulating part (52) are inserted into an opening (51A) at the top of the base (51), and the fixing member (51B) of the base (51) and the mounting member (53) of the regulating part (52) are fastened together.

3. A combine harvester having a pre-harvesting treatment device (3) for harvesting stalks provided in front of a body frame (1), a threshing device (4) provided on the rear left side of the pre-harvesting treatment device (3), a control section (5) provided on the rear right side of the pre-harvesting treatment device (3), a grain tank (7) for storing threshed grain provided behind the control section (5), and a discharge auger (8) for discharging the grain to the outside provided behind the grain tank (7), The discharge auger (8) is formed of a vertical discharge section (8A) that rotates around an axis extending in the vertical direction, and a horizontal discharge section (8B) that extends forward from an upper portion of the vertical discharge section (8A) and has a front portion that moves up and down in the vertical direction, a cabin (32) covering the control section (5); A horizontal frame (47) extending in the left-right direction is provided on the rear side of the grain tank (7), a base (51) of a regulating member (50) for regulating the rotation of the lateral discharge portion (8B) is fixed to the lateral frame (47), and a regulating portion (52) of the regulating member (50) is disposed above the upper wall of the grain tank (7); In a side view, the upper end of the regulating portion (52) is positioned above a virtual 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 cabin (32), The restricting portion (52) is formed by a left leg extending in the vertical direction, a right leg extending in the vertical direction, and a connecting portion extending in the horizontal direction that connects the upper ends of the left leg and the right leg, In a plan view, the connection portion is provided at a predetermined crossing angle with respect to the lateral discharge portion (8B) of the discharge auger (8), A combine harvester characterized in that the lower parts of the left and right legs of the regulating part (52) are inserted into an opening (51A) at the top of the base (51), and the fixing member (51B) of the base (51) and the mounting member (53) of the regulating part (52) are fastened together.

4. A combine harvester having a pre-harvesting treatment device (3) for harvesting stalks provided in front of a body frame (1), a threshing device (4) provided on the rear left side of the pre-harvesting treatment device (3), a control section (5) provided on the rear right side of the pre-harvesting treatment device (3), a grain tank (7) for storing threshed grain provided behind the control section (5), and a discharge auger (8) for discharging the grain to the outside provided behind the grain tank (7), The discharge auger (8) is formed of a vertical discharge section (8A) that rotates around an axis extending in the vertical direction, and a horizontal discharge section (8B) that extends forward from an upper portion of the vertical discharge section (8A) and has a front portion that moves up and down in the vertical direction, A horizontal frame (47) extending in the left-right direction is provided on the rear side of the grain tank (7), a base (51) of a regulating member (50) for regulating the rotation of the lateral discharge portion (8B) is fixed to the lateral frame (47), and a regulating portion (52) of the regulating member (50) is disposed above the upper wall of the grain tank (7); In a side view, the upper end of the regulating portion (52) is positioned above a virtual line (L) passing through a rotation axis extending in the left-right direction of a connecting portion (40) connecting an upper portion of the vertical discharge portion (8A) and a rear portion of the horizontal discharge portion (8B) and the upper end of the rear portion of the cockpit (5A) of the control portion (5), The restricting portion (52) is formed by a left leg extending in the vertical direction, a right leg extending in the vertical direction, and a connecting portion extending in the horizontal direction that connects the upper ends of the left leg and the right leg, In a plan view, the connection portion is provided at a predetermined crossing angle with respect to the lateral discharge portion (8B) of the discharge auger (8), A combine harvester characterized in that the lower parts of the left and right legs of the regulating part (52) are inserted into an opening (51A) at the top of the base (51), and the fixing member (51B) of the base (51) and the mounting member (53) of the regulating part (52) are fastened together.

5. A combine harvester as described in claim 1, wherein the horizontal frame (47) is fixed to a vertical frame (46) extending downward and erected on a body frame (1) that supports a support member (45) that supports the vertical discharge section (8A).

6. A combine harvester according to claim 5, wherein the left portion of the horizontal frame (47) is connected to the right wall of the threshing device (4).

7. 2. A combine harvester according to claim 1, wherein the regulating portion (52) is provided at a position to the left of the vertical discharge portion (8A) at the rear of the upper wall of the grain tank (7) in a plan view.

Images