Harvester

Abstract

A harvester comprises: a vehicle body (1); left and right dividers (32) that divide crops to be reaped and crops to be left in a field; and an arm (33) that supports the dividers (32) on the vehicle body (1) in a vertically oscillatable state. The arm (33) includes a first portion that is an end portion on the side of the dividers (32), and a second portion that is an end portion on the side of the vehicle body. The inner end portion of the first portion in the vehicle body lateral direction is located on the laterally outer side of the vehicle body (1) as compared to the inner end portion of the second portion in the vehicle body lateral direction.

Description

harvester

[0001] The present invention relates to a harvester.

[0002] Patent Document 1 discloses a harvester that includes a crop divider that serves as a grass dividing device, and a lifting link mechanism that is provided at the front of the machine frame and supports the crop divider so that it can be raised and lowered.

[0003] Japanese Patent Application Publication No. 2020-72749 (JP 2020-72749 A)

[0004] In order to properly perform the function of dividing crops by acting on as many crops as possible, it is preferable to make the distance between the left and right grass dividing devices as large as possible. On the other hand, if the machine body supporting the grass dividing device is made larger in the lateral direction, the left and right ends of the machine body may come into contact with the crops planted in the field.

[0005] An object of the present invention is to provide a harvester that can harvest more crops by increasing the distance between the left and right dividers while suppressing an increase in the width of the machine body.

[0006] The harvester of the present invention comprises a vehicle body, left and right dividers that separate crops to be harvested from crops to be left in the field, and an arm that supports the divider on the vehicle body in a state that allows it to swing up and down, the arm having a first portion that is the end on the divider side and a second portion that is the end on the vehicle body side, and the inner end of the first portion in the lateral direction of the vehicle body is positioned laterally outward of the vehicle body than the inner end of the second portion in the lateral direction of the vehicle body.

[0007] With this configuration, the distance between the left and right dividers is increased while maintaining the lateral size of the vehicle body, allowing the dividers to take in more crops. Also, the left and right ends of the vehicle body are less likely to come into contact with crops planted in the field.

[0008] In the present invention, the vehicle body, the divider, and the arm preferably form a link mechanism, and the arm preferably comprises an upper arm and a lower arm located below the upper arm.

[0009] According to this configuration, the link mechanism allows the divider to swing up and down while maintaining the angle of the divider to a certain extent, thereby keeping the divider at an angle that makes it easy to collect crops.

[0010] In the present invention, it is preferable that the upper arm and the lower arm extend in a non-parallel state.

[0011] According to this configuration, the distance between the upper arm and the lower arm can be set to a size that allows the divider to be stably supported by the upper arm and the lower arm.

[0012] In the present invention, it is preferable that the arm has an inclined portion that extends forward while inclining laterally outwardly of the vehicle body.

[0013] With this configuration, the longitudinal size of the arm is smaller than in a configuration in which the arm extends laterally outward from the vehicle body, then bends at a right angle and extends forward, so the distance between the left and right dividers can be increased with a simple configuration.

[0014] In the present invention, the arm is preferably a hollow box-shaped member.

[0015] This configuration allows weight and costs to be reduced compared to a configuration in which the arm is a solid member.

[0016] In the present invention, it is preferable that the arm be swingable about an axis extending in the lateral direction of the vehicle body.

[0017] According to this configuration, the arm swings around an axis extending in the lateral direction of the vehicle body, which makes it easier for the divider to swing up and down.

[0018] In the present invention, the vehicle further includes a transport device located behind the divider for transporting harvested crops, the divider having a rotating body that can rotate around an upper and lower axis, and an introduction member located behind the rotating body that contacts the crops and guides them to the transport device, and it is preferable that the lower end of the introduction member has a recess that is recessed toward the outside of the side of the vehicle body.

[0019] When the introduction member comes into contact with a convex portion of the field, the divider may ride up on the convex portion. In this case, a gap is created between the divider and the field, making it difficult for the divider to take in the crops. With this configuration, the convex portion of the field fits into the recess formed at the lower end of the introduction member, making it difficult for a gap to be created between the divider and the field. This makes it easier for the divider to take in the crops.

[0020] In the present invention, it is preferable that the introduction member is a plate-shaped member, and the recess has a first surface that extends downward while inclining laterally outwardly of the vehicle body.

[0021] With this configuration, the depth of the recess increases downward, which makes it difficult for the lower end of the lead-in member to come into contact with a convex portion of the field due to the recess being inserted into the convex portion. This reduces the likelihood of a gap being formed between the divider and the field.

[0022] In the present invention, it is preferable that the introduction member is a plate-shaped member, and the recess has a second surface that extends forward while inclining laterally outwardly of the vehicle body.

[0023] With this configuration, the depth of the recess increases toward the front. This makes it difficult for the convex parts of the field to enter the recess and for the lower end of the introduction member to come into contact with the convex parts. This reduces the likelihood of a gap being formed between the divider and the field.

[0024] In the present invention, the introduction member is a plate-shaped member, and the recess has a first surface extending downward while sloping laterally outward from the vehicle body, a second surface located below the first surface and extending forward while sloping laterally outward from the vehicle body, and a third surface extending downward from the lower end of the first surface and extending forward from the front end of the second surface, and it is preferable that the angle formed by the first surface and the third surface and the angle formed by the second surface and the third surface are both obtuse angles.

[0025] With this configuration, the depth of the recess increases toward the bottom. The depth of the recess also increases toward the front. This prevents convex parts of the field from entering the recess and causing the lower end of the introduction member to come into contact with the convex parts. This reduces the likelihood of a gap being formed between the divider and the field.

[0026] Furthermore, even if the crops being taken in by the divider get stuck in a recess, the angle between the first and third surfaces or the angle between the second and third surfaces makes it less likely for the crops to get caught, making it easier to guide the crops to the conveying device.

[0027] 6 is a left side view of the harvester. FIG. 7 is a plan view of the harvester. FIG. 8 is a front view of the harvester. FIG. 9 is a left side view of the divider. FIG. 10 is a plan view of the divider. FIG. 11 is a side view of the introduction member in FIG. 5 as viewed from the arrows VI-VI. FIG. 12 is a front view of the introduction member. FIG. 13 is a bottom view of the introduction member.

[0028] A sugarcane harvester, which is an example of a harvester according to the present invention, will be described below with reference to the drawings. In the following description, the direction of arrow F in the drawings will be referred to as the "front side," the direction of arrow B as the "rear side," the direction of arrow U as the "upper side," the direction of arrow D as the "lower side," the direction of arrow R as the "right side," and the direction of arrow L as the "left side."

[0029] [Overall Structure] As shown in Figures 1, 2 and 3, the sugarcane harvester comprises a vehicle body 1, a traveling device 2 that supports the vehicle body 1, a harvesting device 3 that harvests the crops, a transport device 4 that transports the crops harvested by the harvesting device 3, a sorting device 5 that sorts the crops into harvested material and impurities using sorting wind, a rear transport device 6 that transports the harvested material supplied from the sorting device 5 rearward and then discharges it to the outside, a driving section 7 in which a driver rides, and an engine E supported by the vehicle body 1.

[0030] The traveling device 2 includes left and right front wheels 21 and left and right rear wheels 22 located rearward of the front wheels 21. The rear wheels 22 are supported by an axle case connected to the vehicle body 1. Power from the engine E is transmitted to the left and right rear wheels 22 via a transmission. In other words, the rear wheels 22 are driven by the engine E.

[0031] The front wheels 21 are supported on the vehicle body 1 so as to be movable up and down and steerable. Power from the engine E is not transmitted to the front wheels 21.

[0032] The transport device 4 is supported by the vehicle body 1 in a tilted position with the rear raised. Specifically, the lower part of the transport device 4 is supported by the vehicle body 1. In addition, the rear part of the transport device 4 is supported by the vehicle body 1 via an axle case or a transmission located below the rear part of the transport device 4.

[0033] The front part of the transport device 4 is connected to the rear part of the reaping device 3. As a result, the crops harvested by the reaping device 3 are transported by the transport device 4 toward the rear and upper part of the vehicle body 1.

[0034] The sorting device 5 is connected to the rear of the conveying device 4. Crops transported by the conveying device 4 are shredded at the end of the conveying path of the conveying device 4 and supplied to the sorting device 5. The crops supplied to the sorting device 5 fall downward from the end of the conveying path of the conveying device 4 while passing through the inside of the sorting device 5. Crops passing through the sorting device 5 are sorted by impurities being blown outside the vehicle body 1 by sorting wind. The sorted harvested crops fall to the front of the rear conveying device 6.

[0035] The rear conveying device 6 extends diagonally upward and rearward in a rear-upward tilted position. The rear conveying device 6 conveys the harvested product in an upward and rearward direction. The conveyed harvested product is discharged to the outside of the vehicle body 1 from a discharge area provided at the rear of the rear conveying device 6. Specifically, the rear conveying device 6 discharges the harvested product onto the loading platform of a transport vehicle traveling alongside the sugarcane harvester.

[0036] [Harvesting device] As shown in Figures 1, 2 and 3, the harvesting device 3 is equipped with left and right dividing bodies 31 that separate the crops to be harvested from the crops to be left in the field, left and right dividers 32 that separate the crops to be harvested from the crops to be left in the field, an arm 33 that supports the dividers 32 on the vehicle body 1 in a state that allows them to swing up and down, a crop-falling device 38 that falls the crops forward, and a cutting blade 39 that cuts the base of the crops fallen by the crop-falling device 38.

[0037] The dividing body 31 is connected to the lower part of the divider 32. The dividing body 31 has a shape in which the width in the lateral direction of the vehicle body narrows toward the front in a plan view.

[0038] As shown in Figure 4, the plant segment 31 has a plant segment cover 31a that covers the upper part of the plant segment 31, and a flat grounding member 31b.

[0039] The divider 32 is located in front of the transport device 4. In other words, the transport device 4 is located behind the divider 32.

[0040] The arm 33 is a rod-shaped member. The arm 33 is also a hollow box-shaped member. The arm 33 connects the vehicle body 1 and the divider 32. The arm 33 is swingable relative to the vehicle body 1 around an axis extending in the lateral direction of the vehicle body.

[0041] The tilting devices 38 are cylindrical members provided at multiple positions in the longitudinal direction of the vehicle body. The tilting devices 38 are rotatable around an axis that extends laterally along the vehicle body. The left and right ends of the tilting devices 38 are supported by the vehicle body 1 via bearings. The tilting devices 38 have hydraulic motors and are driven by the power of the hydraulic motors.

[0042] The cutting blade 39 is suspended from the vehicle body 1. The cutting blade 39 has left and right drive shafts that extend in the vertical direction. The drive shafts are rotatable around their axes that extend in the vertical direction. A plurality of blades extend radially from the drive shaft. When the drive shafts are driven to rotate, the plurality of blades rotate around their axes that extend in the vertical direction.

[0043] Power from a hydraulic motor is transmitted to the left and right drive shafts via a gear mechanism, causing the left and right blades to rotate in opposite directions.

[0044] [Support Frame] As shown in FIGS. 1, 4, and 5, the vehicle body 1 includes a support frame 11 that supports the driver section 7 located above the reaping device 3.

[0045] The support frame 11 includes left and right upper and lower frames 12 extending in the up-down direction of the vehicle body, left and right front and rear frames 13 extending in the front-rear direction of the vehicle body, a connecting frame 14 extending in the lateral direction of the vehicle body, and left and right side walls 15 located laterally inward of the upper and lower frames 12 on the vehicle body 1. The side walls 15 are plate-shaped members.

[0046] As shown in FIG. 4, the vertical frame 12 includes a first vertical frame 12a and a second vertical frame 12b located rearward of the first vertical frame 12a.

[0047] The front-rear frame 13 includes a first front-rear frame 13a and a second front-rear frame 13b located below the first front-rear frame 13a.

[0048] The upper part of the first vertical frame 12a is connected to the front part of the connecting frame 14. Furthermore, the front part of the first front-rear frame 13a is connected to the rear part of the connecting frame 14. In other words, the first vertical frame 12a is connected to the first front-rear frame 13a via the connecting frame 14. The lower part of the first vertical frame 12a is connected to the front part of the second front-rear frame 13b.

[0049] An upper portion of the second vertical frame 12b is connected to a rear portion of the first front-rear frame 13a, and a lower portion of the second vertical frame 12b is connected to a rear portion of the second front-rear frame 13b.

[0050] With the above configuration, the support frame 11 has a rectangular shape when viewed from the side.

[0051] 5, the connecting frame 14 is connected to the left and right upper and lower frames 12. The connecting frame 14 is also connected to the left and right first front and rear frames 13a.

[0052] Specifically, the left end of the connecting frame 14 is connected to the upper part of the left first vertical frame 12 a, and the right end of the connecting frame 14 is connected to the upper part of the right first vertical frame 12 a.

[0053] The left end of the connecting frame 14 is connected to the front portion of the left first front-rear frame 13a, and the right end of the connecting frame 14 is connected to the front portion of the right first front-rear frame 13a.

[0054] 4, the cutting blade 39 is supported in a forward tilted position by being suspended from the left and right side walls 15. The left and right side walls 15 are erected facing each other across the path along which the crops taken in by the divider 32 pass.

[0055] 4 and 5, the arm 33 is supported by the first vertical frame 12a so as to be able to swing up and down. The arm 33 includes an upper arm 34 and a lower arm 35 located below the upper arm 34.

[0056] The upper arm 34 has a front portion 34f (corresponding to a first portion) which is the end portion on the divider 32 side, and a rear portion 34b (corresponding to a second portion) which is the end portion on the vehicle body 1 side. In other words, the front portion 34f is the front end portion of the upper arm 34. The rear portion 34b is the rear end portion of the upper arm 34.

[0057] The upper arm 34 and the lower arm 35 extend in a non-parallel manner. Specifically, in a side view, the angle of the upper arm 34 with respect to the horizontal plane is larger than the angle of the lower arm 35 with respect to the horizontal plane.

[0058] A rear portion 34b of the upper arm 34 is connected to an upper portion of the first vertical frame 12a. The upper arm 34 is swingable about an axis P1 that extends in the lateral direction of the vehicle body.

[0059] A front portion 34f of the upper arm 34 is connected to the upper portions of left and right divider support frames 32d provided on the divider 32. The divider support frames 32d extend along the divider 32. The divider support frames 32d are swingable relative to the upper arm 34 around an axis P3 extending in the lateral direction of the vehicle body.

[0060] The lower arm 35 includes a front portion 35f (corresponding to a first portion) which is the end portion on the divider 32 side, and a rear portion 35b (corresponding to a second portion) which is the end portion on the vehicle body 1 side. In other words, the front portion 35f is the front end portion of the lower arm 35. The rear portion 35b is the rear end portion of the lower arm 35.

[0061] A rear portion 35b of the lower arm 35 is connected to the lower portion of the first vertical frame 12a. The lower arm 35 is capable of swinging up and down about an axis P2 that extends in the lateral direction of the vehicle body.

[0062] A front portion 35f of the lower arm 35 is connected to a lower portion of the divider support frame 32d. The divider support frame 32d is swingable relative to the lower arm 35 about an axis P4 that extends in the lateral direction of the vehicle body.

[0063] With the above-described configuration, a link mechanism is formed by the vehicle body 1, the divider 32, and the arm 33. Specifically, a four-bar link mechanism is formed by the first upper and lower frames 12a, the divider support frame 32d, the upper arm 34, and the lower arm 35.

[0064] The reaping device 3 includes left and right hydraulic cylinders 36. The hydraulic cylinders 36 are connected to the support frame 11. Specifically, the base ends of the hydraulic cylinders 36 are connected to the upper portions of the first vertical frame 12a.

[0065] The support frame 11 has a bulging portion 16 that bulges rearward from the first vertical frame 12a. The base end of the hydraulic cylinder 36 is connected to the bulging portion 16.

[0066] The reaping device 3 includes a chain 37 that extends from the tip of the hydraulic cylinder 36 to the front portion 35f of the lower arm 35. The tip of the hydraulic cylinder 36 and the front portion 35f are connected by the chain 37. This causes the divider 32 to swing up and down by the hydraulic cylinder 36 and the chain 37. In other words, the extension and contraction of the hydraulic cylinder 36 causes the divider 32, which is connected to the chain 37, to swing up and down.

[0067] When the divider 32 runs over a convex portion of the field while the vehicle body 1 is traveling, the chain 37 becomes slack and the lower arm 35 swings upward, causing the divider 32 to swing upward.

[0068] When the divider 32 passes over a convex portion of the field, the weight of the divider 32 and other components causes the chain 37 to go from a slack state to a taut state. Also, the lower arm 35 swings downward, causing the divider 32 to swing downward.

[0069] 5, the upper arm 34 has an inclined portion 34i that extends forward in a plan view while being inclined laterally outward of the vehicle body 1. The lower arm 35 has an inclined portion 35i that extends forward in a plan view while being inclined laterally outward of the vehicle body 1.

[0070] In plan view, the inclined portions 34i, 35i of the upper arm 34 and the lower arm 35 are located between the front portions 34f, 35f extending linearly in the fore-and-aft direction of the vehicle body and the rear portions 34b, 35b extending linearly in the fore-and-aft direction of the vehicle body.

[0071] The inner ends of the front portions 34f, 35f of the upper arm 34 and the lower arm 35 in the lateral direction of the vehicle body are positioned laterally outward of the vehicle body 1 than the inner ends of the rear portions 34b, 35b in the lateral direction of the vehicle body.

[0072] As shown in Figure 5, the linear distance W1 in the lateral direction of the vehicle body between the rear portion 34b of the left upper arm 34 and the rear portion 34b of the right upper arm 34 is smaller than the linear distance W2 in the lateral direction of the vehicle body between the front portion 34f of the left upper arm 34 and the front portion 34f of the right upper arm 34.

[0073] In addition, the straight-line distance W1 in the lateral direction of the vehicle body between the rear portion 35b of the left lower arm 35 and the rear portion 35b of the right lower arm 35 is smaller than the straight-line distance W2 in the lateral direction of the vehicle body between the front portion 35f of the left lower arm 35 and the front portion 35f of the right lower arm 35.

[0074] [Divider] As shown in Figures 4 and 5, the divider 32 has an inner screw 32a (corresponding to a rotating body) that can rotate around an upper and lower axis (axis P6), an outer screw 32b (corresponding to a rotating body) that is located laterally outward of the inner screw 32a on the vehicle body 1 and can rotate around an upper and lower axis (axis P5), a screw connecting frame 32c that connects the inner screw 32a and the outer screw 32b, and an introduction member 8 that contacts the crops and guides them to the conveying device 4.

[0075] The inner screw 32a is cylindrical. The inner screw 32a has a helical body on its outer periphery. The inner screw 32a is driven by a hydraulic motor provided at the upper end of the inner screw 32a. The inner screw 32a is tilted downward and rearward in side view. The inner screw 32a rotates around an axis P6 that extends diagonally rearward in side view.

[0076] The divider support frame 32d extends along the inner screw 32a. Specifically, the divider support frame 32d extends from the lower part of the inner screw 32a to the upper part of the inner screw 32a. The divider support frame 32d is connected to the upper part of the inner screw 32a and the lower end of the inner screw 32a.

[0077] The outer screw 32b is cylindrical. The outer screw 32b has a helical body on its outer periphery. The outer screw 32b is driven by a hydraulic motor provided at the upper end of the outer screw 32b. The outer screw 32b is tilted downward and rearward in side view. The outer screw 32b rotates around an axis P5 that extends diagonally rearward in side view.

[0078] The screw connecting frame 32c connects the upper part of the inner screw 32a and the upper part of the outer screw 32b. As shown in Figure 5, the screw connecting frame 32c extends from the rear of the inner screw 32a to the rear of the outer screw 32b while tilting outward laterally from the vehicle body 1 in a plan view.

[0079] Introduction Member As shown in Figures 6, 7, and 8, the introduction member 8 is a plate-shaped member. Figure 6 shows the left introduction member 8 provided on the left divider 32. A recess 81 is formed at the lower end of the introduction member 8, recessed toward the lateral outer side of the vehicle body 1 (left side in Figure 6). The recess 81 is formed from the front end of the introduction member 8 to the middle part between the front and rear of the introduction member 8. The introduction member 8 is fixed to the divider support frame 32d.

[0080] The introduction member 8 has a folded portion 82 formed by folding back from the front end of the introduction member 8 to the lateral outside of the vehicle body 1. The folded portion 82 covers the front portion of the divider support frame 32d.

[0081] 6, the introduction member 8 is located rearward of the lower end of the inner screw 32a. In other words, the introduction member 8 is located behind the inner screw 32a.

[0082] 4 and 5 , the introduction member 8 covers the space from the side wall 15 to the divider 32 from the lateral inner side of the vehicle body 1. This prevents crops raked in by the divider 32 from entering the space from the side wall 15 to the divider 32.

[0083] The introduction member 8 extends from the bottom of the divider 32 to the top of the divider 32. Specifically, the introduction member 8 extends from the bottom end of the inner screw 32a to the top of the inner screw 32a. However, the introduction member 8 may extend from the bottom of the divider 32 to the middle between the top and bottom of the divider 32. The bottom end of the introduction member 8 is located at the same height as the bottom end of the grass body 31.

[0084] The introduction member 8 extends from the front of the side wall 15 to the rear of the divider 32. Specifically, the introduction member 8 extends from the front of the side wall 15 to the front of the divider support frame 32d. The lower end of the introduction member 8 extends from the rear of the grass dividing body 31 to the front of the side wall 15. However, the introduction member 8 does not have to extend from the front of the side wall 15 to the rear of the divider 32 as long as the space from the side wall 15 to the divider 32 is covered with another member.

[0085] The introduction member 8 covers the hydraulic cylinder 36 from the lateral inner side of the vehicle body 1. This prevents the crop from coming into contact with the hydraulic cylinder 36 and preventing the arm 33 from swinging.

[0086] 6, 7, and 8, the recess 81 has a first surface 81a that extends downward while sloping laterally outward of the vehicle body 1, a second surface 81b that is located below the first surface 81a and extends forward while sloping laterally outward of the vehicle body 1, and a third surface 81c that extends downward from the lower end of the first surface 81a and extends forward from the front end of the second surface 81b. In this embodiment, the first surface 81a, the second surface 81b, and the third surface 81c are flat.

[0087] 7, the angle θ1 formed by the first surface 81a and the third surface 81c in a front view is an obtuse angle. This makes it easier to guide the crops to the conveying device 4, as the crops are less likely to get caught compared to when the angle θ1 is smaller than an obtuse angle.

[0088] 8, the angle θ2 formed by the second surface 81b and the third surface 81c in bottom view is an obtuse angle. This makes it easier to guide the crops to the conveying device 4 because the crops are less likely to get caught compared to when the angle θ2 is smaller than an obtuse angle.

[0089] Line L3, shown by a dashed dotted line in Figures 5, 7, and 8, is an imaginary line that extends in the fore-and-aft direction and passes through the laterally inner end of the introduction member 8 on the vehicle body 1. Line L4, shown by a dashed dotted line in Figures 5, 7, and 8, is an imaginary line that extends along the third surface 81c, which is the laterally inner end of the introduction member 8 on the vehicle body 1. Line L4 is located laterally outboard of line L3 on the vehicle body 1. A linear distance W3 in the vehicle body lateral direction between L3 on the left divider 32 and L3 on the right divider 32 is smaller than a linear distance W4 in the vehicle body lateral direction between L4 on the left divider 32 and L4 on the right divider 32.

[0090] Line L4 passes through the lateral inner end of the vehicle body 1 at the divided plant body 31. In other words, the third surface 81c of the recess 81 is at the same position in the lateral direction of the vehicle body as the lateral inner end of the vehicle body 1 at the divided plant body 31. As a result, the third surface 81c does not protrude further lateral inside of the vehicle body 1 than the divided plant body 31, so a wide range of crops in the field can be taken in.

[0091] [Other Embodiments] The present invention is not limited to the above-described embodiment. For example, the present invention may be configured as in the following other embodiments. In the other embodiments described below, the same components as those in the above-described embodiment are assigned the same numbers and symbols as those in the above-described embodiment.

[0092] [1] In the above-described embodiment, the arm 33 includes an upper arm 34 and a lower arm 35. However, the number of arms 33 is not limited to this, and may be any number. For example, the number of arms 33 may be one, or three or more.

[0093] [2] At least one of the upper arm 34 and the lower arm 35 may not have the inclined portion 34i, 35i, and may extend laterally outward from the vehicle body 1 and then extend forward while curving. Also, at least one of the upper arm 34 and the lower arm 35 may extend laterally outward from the vehicle body 1 and then bend at a right angle to extend forward.

[0094] [3] In the above-described embodiment, the inner ends of the front portions 34f, 35f of the upper arm 34 and the lower arm 35 in the lateral direction of the vehicle body are positioned laterally outward of the inner ends of the rear portions 34b, 35b in the lateral direction of the vehicle body 1. However, this is not limiting, and the inner ends of the front portions 34f, 35f of only one of the upper arm 34 and the lower arm 35 in the lateral direction of the vehicle body may be positioned laterally outward of the vehicle body 1 relative to the inner ends of the rear portions 34b, 35b in the lateral direction of the vehicle body.

[0095] [4] In the above embodiment, the introduction member 8 is located behind the inner screw 32a. However, the introduction member 8 may be located behind both the inner screw 32a and the outer screw 32b.

[0096] [5] The recess 81 may have any shape. For example, the recess 81 may be formed with a curved surface. The recess 81 may have a triangular shape in a front view. The recess 81 may have a triangular shape in a plan view.

[0097] [6] If line L4 is located laterally outside of body 1 than line L3, the lateral outer end of recess 81 may be located laterally inside body 1 than the lateral inner end of body 1 at branch body 31.

[0098] [7] The upper arm 34 and the lower arm 35 may extend in parallel.

[0099] [8] The sugarcane harvester does not need to be equipped with a post-conveying device 6. In this case, the harvested product sorted by the sorting device 5 is discharged into a harvested product storage bag or the like.

[0100] [9] The traveling device 2 may be a crawler type device.

[0101]

[10] The configurations disclosed in the above-described embodiments (including other embodiments, the same applies below) can be applied in combination with configurations disclosed in other embodiments, unless a contradiction arises. Furthermore, the embodiments disclosed in this specification are merely examples, and the embodiments of the present invention are not limited thereto and can be appropriately modified within the scope that does not deviate from the purpose of the present invention.

[0102] The present invention can be applied to combine harvesters and other harvesters for harvesting soybeans, corn, etc., in addition to sugarcane harvesters.

[0103] 1: Vehicle body 4: Conveying device 8: Introduction member 32: Divider 32a: Inner screw (rotating body) 32b: Outer screw (rotating body) 33: Arm 34: Upper arm 34b: Rear portion (second portion) 34f: Front portion (first portion) 34i: Inclined portion 35: Lower arm 35b: Rear portion (second portion) 35f: Front portion (first portion) 35i: Inclined portion 81: Recess 81a: First surface 81b: Second surface 81c: Third surface θ1: Angle θ2: Angle

Claims

1. A harvester comprising a vehicle body, left and right dividers that separate harvested crops from crops remaining in the field, and an arm that supports the dividers on the vehicle body in a vertically swingable state, the arm including a first portion that is an end portion on the divider side and a second portion that is an end portion on the vehicle body side, wherein an inner end portion of the first portion in the vehicle body width direction is located laterally outside the vehicle body than an inner end portion of the second portion in the vehicle body width direction.

2. The harvester according to claim 1, wherein a link mechanism is constituted by the vehicle body, the divider, and the arm, and the arm includes an upper arm and a lower arm located below the upper arm.

3. The harvester according to claim 2, wherein the upper arm and the lower arm extend in a non-parallel state.

4. The harvester according to any one of claims 1 to 3, wherein the arm has an inclined portion that extends while inclining laterally outside the vehicle body toward the front.

5. The harvester according to any one of claims 1 to 4, wherein the arm is a hollow box-shaped member.

6. The harvester according to any one of claims 1 to 5, wherein the arm is swingable about an axis extending in the vehicle body width direction.

7. The harvester according to any one of claims 1 to 6, further comprising a conveying device that is located behind the divider and conveys the harvested crops, the divider having a rotator that is rotatable about a vertical axis and an introduction member that is located behind the rotator and guides the crops to the conveying device while contacting the crops, wherein a recess that is recessed laterally outside the vehicle body is formed at a lower end portion of the introduction member.

8. The harvester according to claim 7, wherein the introduction member is a plate-shaped member, and the recess has a first surface that extends while inclining laterally outside the vehicle body downward.

9. The harvester according to claim 7 or 8, wherein the introduction member is a plate-shaped member, and the recess has a second surface that extends while inclining laterally outside the vehicle body forward.

10. The introduction member is a plate-shaped member, and the concave portion has a first surface that extends while inclining laterally outward of the vehicle body downward, a second surface that is located below the first surface and extends while inclining laterally outward of the vehicle body forward, and a third surface that extends downward from the lower end portion of the first surface and extends forward from the front end portion of the second surface. The angle formed by the first surface and the third surface and the angle formed by the second surface and the third surface are both obtuse angles. The harvesting machine according to claim 7.

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