Harvester

Abstract

To provide a harvester capable of reaping more crops by increasing a distance between right and left dividers while suppressing enlargement of the machine body width.SOLUTION: A harvester includes: a vehicle body 1; right and left dividers 32 for dividing crops into crops to be reaped and crops to be left in a farm field; and an arm 33 for causing the vehicle body 1 to support the dividers 32 in a vertically swingable state. The arm 33 includes a first part that is an end part on a divider 32 side, and a second part that is an end part on a vehicle body side. An inside end part in a vehicle body lateral direction of the first part is located more on a lateral outside of the vehicle body 1 than an inside end part in a vehicle body lateral direction of the second part.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a harvesting machine.

Background Art

[0002] Patent Document 1 discloses a harvesting machine including a crop divider serving as a weed separating device and a lifting link mechanism provided at the front portion of the machine body frame for supporting the crop divider in a vertically movable manner.

Prior Art Document

Patent Document

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In order to appropriately exhibit the function of acting on as many crops as possible and separating the crops, it is preferable that the distance between the left and right weed separating devices is as large as possible. On the other hand, when the machine body supporting the weed separating device is widened in the lateral direction, the left and right end portions 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 harvesting machine capable of harvesting more crops by increasing the distance between the left and right dividers while suppressing an increase in the width of the machine body.

Means for Solving the Problems

[0006] The harvesting machine of the present invention includes a vehicle body, left and right dividers for separating the crops to be harvested and the crops to be left in the field, and an arm for supporting the dividers on the vehicle body in a vertically swingable state. The arm includes 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. The inner end portion of the first portion in the lateral direction of the vehicle body is located more laterally outside the vehicle body than the inner end portion of the second portion in the lateral direction of the vehicle body.

[0007] According to this configuration, while maintaining the lateral size of the vehicle body, the distance between the left and right dividers increases, so that more crops can be taken in by the dividers. Further, the left and right ends of the vehicle body are less likely to come into contact with the crops planted in the field.

[0008] In the present invention, it is preferable that 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 positioned below the upper arm.

[0009] According to this configuration, the divider is swung up and down while the angle of the divider is maintained to a certain extent by the link mechanism. Thereby, the divider is kept at an angle at which it is easy to take in 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 at which the divider is easily and 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 while inclining laterally outward of the vehicle body toward the front.

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

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

[0015] According to this configuration, the weight and cost can be reduced compared with a configuration in which the arm is a solid member.

[0016] In the present invention, it is preferable that the arm is swingable around an axis extending in the vehicle body width direction.

[0017] According to this configuration, when the arm swings around an axis extending in the vehicle body width direction, the divider is easily swung up and down.

[0018] In the present invention, a conveying device is further provided which is located behind the divider and conveys the harvested crops. The divider has a rotating body rotatable around a vertical axis, and an introduction member located behind the rotating body and guiding the crops to the conveying device while contacting the crops. It is preferable that a recess recessed outward in the lateral direction of the vehicle body is formed at the lower end of the introduction member.

[0019] When the introduction member contacts a convex portion of the field, the divider may ride up on the convex portion. In this case, a gap is formed between the divider and the field, making it difficult for the divider to take in the crops. According to this configuration, when the convex portion of the field enters the recess formed at the lower end of the introduction member, it becomes difficult for a gap to be formed between the divider and the field. As a result, it becomes easier for the divider to take in the crops.

[0020] In the present invention, the introduction member is a plate-like member, and it is preferable that the recess has a first surface extending while inclining outward in the lateral direction of the vehicle body downward.

[0021] According to this configuration, the depth of the recess becomes larger as it goes downward. As a result, the convex portion of the field enters the recess, and it becomes difficult for the lower end of the introduction member to contact the convex portion. Therefore, it becomes difficult for a gap to be formed between the divider and the field.

[0022] In the present invention, the introduction member is a plate-like member, and it is preferable that the recess has a second surface extending while inclining outward in the lateral direction of the vehicle body forward.

[0023] According to this configuration, the depth of the recess increases toward the front. As a result, the convex portion of the field enters the recess, and it becomes difficult for the lower end portion of the introduction member to contact the convex portion. Therefore, it becomes difficult for a gap to form between the divider and the field.

[0024] In the present invention, the introduction member is a plate-like member, and the recess 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. It is preferable that both the angle formed by the first surface and the third surface and the angle formed by the second surface and the third surface are obtuse angles.

[0025] According to this configuration, the depth of the recess increases toward the bottom. Also, the depth of the recess increases toward the front. As a result, the convex portion of the field enters the recess, and it becomes difficult for the lower end portion of the introduction member to contact the convex portion. Therefore, it becomes difficult for a gap to form between the divider and the field.

[0026] Further, even when the crop taken in by the divider enters the recess, the angle formed by the first surface and the third surface or the angle formed by the second surface and the third surface makes it difficult for the crop to get caught, so it becomes easier to guide the crop to the conveying device.

Brief Description of the Drawings

[0027]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Mode for Carrying Out the Invention

[0028] Hereinafter, a sugarcane harvester, which is an example of a harvesting machine according to the present invention, will be described with reference to the drawings. In the following description, the direction of arrow F in the drawings is defined 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 Configuration〕 As shown in FIGS. 1, 2, and 3, the sugarcane harvester includes a vehicle body 1, a traveling device 2 that supports the vehicle body 1, a cutting device 3 that cuts crops, a conveying device 4 that conveys the crops harvested by the cutting device 3, a sorting device 5 that sorts the crops into harvested products and impurities by sorting air, a rear conveying device 6 that conveys the harvested products supplied from the sorting device 5 rearward and then discharges them to the outside, a driver's cab 7 into which the driver gets in, 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 behind the front wheels 21. The rear wheels 22 are supported by an axle case connected to the vehicle body 1. The 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 by the vehicle body 1 so as to be liftable and steerable. The power from the engine E is not transmitted to the front wheels 21.

[0032] The conveying device 4 is supported by the vehicle body 1 in a rearwardly inclined posture. Specifically, the lower part of the conveying device 4 is supported by the vehicle body 1. Also, the rear part of the conveying device 4 is supported by the vehicle body 1 via an axle case or a transmission located below the rear part of the conveying device 4.

[0033] The front part of the conveying device 4 is connected to the rear part of the cutting device 3. As a result, the crops cut by the cutting device 3 are conveyed upward and rearward of the machine body by the conveying device 4.

[0034] The sorting device 5 is connected to the rear part of the conveying device 4. The crops conveyed by the conveying device 4 are shredded at the end of the conveying section of the conveying device 4 and supplied to the sorting device 5. The crops supplied to the sorting device 5 fall while passing through the inside of the sorting device 5 downward from the end of the conveying section of the conveying device 4. The crops passing through the sorting device 5 are sorted by the sorting air blowing the impurities outside the vehicle body 1. The sorted harvested crops fall in front of the rear conveying device 6.

[0035] The rear conveying device 6 extends obliquely rearward and upward in a rearward rising inclined posture. The rear conveying device 6 conveys the harvested crops rearward and upward. The conveyed harvested crops are discharged from the discharge part provided at the rear part of the rear conveying device 6 to the outside of the vehicle body 1. Specifically, by the rear conveying device 6, the harvested crops are discharged to the loading platform of a transport vehicle running alongside the sugarcane harvester, etc.

[0036] 〔Cutting device〕 As shown in FIGS. 1, 2, and 3, the cutting device 3 includes left and right weeding bodies 31 that separate the crops to be cut and the crops remaining in the field, left and right dividers 32 that separate the crops to be cut and the crops remaining in the field, an arm 33 that supports the divider 32 on the vehicle body 1 in a state where it can swing up and down, a toppling device 38 that topples the crops forward, and a cutting blade 39 that cuts the base of the crops toppled by the toppling device 38.

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

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

[0039] The divider 32 is located on the front side of the conveying device 4. In other words, the conveying device 4 is located on the rear side of the divider 32.

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

[0041] The tilting device 38 is a cylindrical member provided at a plurality of positions in the longitudinal direction of the vehicle body. The tilting device 38 is rotatable around an axis along the lateral direction of the vehicle body. The left and right end portions of the tilting device 38 are supported by the vehicle body 1 via bearings. The tilting device 38 has a hydraulic motor and is driven by the power of the hydraulic motor.

[0042] The cutting blade 39 is suspended from the vehicle body 1. The cutting blade 39 has left and right drive shafts extending along the vertical direction. The drive shafts are rotatable around an axis along the vertical direction. A plurality of blades extend radially from the drive shafts. When the drive shafts are rotationally driven, the plurality of blades rotate.

[0043] Power from a hydraulic motor is transmitted to the left and right drive shafts via a gear mechanism. The left and right blades are rotationally driven in opposite directions to each other.

[0044] 〔Support Frame〕 As shown in FIGS. 1, 4, and 5, the vehicle body 1 includes a support frame 11 that supports the operation unit 7 located above the cutting device 3.

[0045] The support frame 11 includes left and right vertical frames 12 extending in the vertical 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 on the inner side of the vehicle body 1 in the lateral direction relative to the vertical frames 12. The side walls 15 are plate-shaped members.

[0046] As shown in FIG. 4, the upper and lower frames 12 include a first upper and lower frame 12a and a second upper and lower frame 12b located behind the first upper and lower frame 12a.

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

[0048] The upper part of the first upper and lower frame 12a is connected to the front part of the connecting frame 14. Also, the front part of the first front and rear frame 13a is connected to the rear part of the connecting frame 14. That is, the first upper and lower frame 12a is connected to the first upper and lower frame 12a via the connecting frame 14. The lower part of the first upper and lower frame 12a is connected to the front part of the second front and rear frame 13b.

[0049] The upper part of the second upper and lower frame 12b is connected to the rear part of the first front and rear frame 13a. The lower part of the second upper and lower frame 12b is connected to the rear part of the second front and rear frame 13b.

[0050] With the above configuration, the support frame 11 is rectangular in side view.

[0051] As shown in FIG. 5, the connecting frame 14 is connected to the left and right upper and lower frames 12. Also, the connecting frame 14 is 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 upper and lower frame 12a. Also, the right end of the connecting frame 14 is connected to the upper part of the right first upper and lower frame 12a.

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

[0054] As shown in Fig. 4, the cutting blade 39 is suspended and supported by the left and right side walls 15 in a forward-tilted posture. The left and right side walls 15 are erected facing each other with the path through which the crop taken in by the divider 32 passes therebetween.

[0055] 〔Arm〕 As shown in Figs. 4 and 5, the arm 33 is supported by the first upper and lower frame 12a so as to be swingable 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 includes a front side portion 34f (corresponding to the first portion) which is the end on the divider 32 side and a rear side portion 34b (corresponding to the second portion) which is the end on the vehicle body 1 side. In other words, the front side portion 34f is the front end portion of the upper arm 34. Also, the rear side 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 state. 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] The rear side portion 34b of the upper arm 34 is connected to the upper part of the first upper and lower frame 12a. The upper arm 34 is swingable around an axis P1 extending in the vehicle body width direction.

[0059] The front side portion 34f of the upper arm 34 is connected to the upper parts of the left and right divider support frames 32d provided on the divider 32. The divider support frame 32d extends along the divider 32. The divider support frame 32d is swingable around an axis P3 extending in the vehicle body width direction with respect to the upper arm 34.

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

[0061] The rear side portion 35b of the lower arm 35 is connected to the lower part of the first upper and lower frame 12a. The lower arm 35 is swingable up and down around the axis P2 extending in the vehicle body width direction.

[0062] The front side portion 35f of the lower arm 35 is connected to the lower part of the divider support frame 32d. The divider support frame 32d is swingable around the axis P4 extending in the vehicle body width direction with respect to the lower arm 35.

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

[0064] The mowing device 3 includes left and right hydraulic cylinders 36. The hydraulic cylinders 36 are connected to the support frame 11. Specifically, the base end portion of the hydraulic cylinder 36 is connected to the upper part of the first upper and lower frame 12a.

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

[0066] The mowing device 3 includes a chain 37 that extends across the tip portion of the hydraulic cylinder 36 and the front side portion 35f of the lower arm 35. The tip portion of the hydraulic cylinder 36 and the front side portion 35f are connected by the chain 37. Thereby, the divider 32 swings up and down by the hydraulic cylinder 36 and the chain 37. That is, when the hydraulic cylinder 36 expands and contracts, the divider 32 connected to the chain 37 swings up and down.

[0067] When the vehicle body 1 is running and the divider 32 rides over a convex portion of the field, the chain 37 becomes slack, and the lower arm 35 swings upward. Thereby, the divider 32 swings upward.

[0068] When the divider 32 passes over the convex part of the field, due to the weight of the divider 32 or the like, the chain 37 changes from a slack state to a taut state. Also, the lower arm 35 swings downward. As a result, the divider 32 swings downward.

[0069] As shown in FIG. 5, the upper arm 34 has an inclined portion 34i that extends while inclining laterally outward of the vehicle body 1 toward the front in plan view. Also, the lower arm 35 has an inclined portion 35i that extends while inclining laterally outward of the vehicle body 1 toward the front in plan view.

[0070] The inclined portions 34i and 35i of the upper arm 34 and the lower arm 35 are located between a front side portion 34f and 35f that extends linearly in the vehicle body longitudinal direction and a rear side portion 34b and 35b that extends linearly in the vehicle body longitudinal direction in plan view.

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

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

[0073] Also, the linear distance W1 in the vehicle body lateral direction between the rear side portion 35b of the left lower arm 35 and the rear side portion 35b of the right lower arm 35 is smaller than the linear distance W2 in the vehicle body lateral direction between the front side portion 35f of the left lower arm 35 and the front side portion 35f of the right lower arm 35.

[0074] 〔Divider〕 As shown in FIGS. 4 and 5, the divider 32 includes an inner screw 32a (corresponding to a rotating body) that is rotatable around a vertical axis (axis P6), an outer screw 32b (corresponding to a rotating body) that is located laterally outside the vehicle body 1 relative to the inner screw 32a and is rotatable around a vertical 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 guides the crop to the conveying device 4 while contacting the crop.

[0075] The inner screw 32a is cylindrical. The inner screw 32a has a spiral 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 has a rearwardly downward inclined posture in side view. The inner screw 32a rotates around an axis P6 that extends obliquely 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 to the upper part of the inner screw 32a. The divider support frame 32d is connected to the upper part and the lower end of the inner screw 32a.

[0077] The outer screw 32b is cylindrical. The outer screw 32b has a spiral 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 has a rearwardly downward inclined posture in side view. The outer screw 32b rotates around an axis P5 that extends obliquely 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 FIG. 5, the screw connecting frame 32c extends while inclining laterally outward of the vehicle body 1 from the rear part of the inner screw 32a toward the rear part of the outer screw 32b in plan view.

[0079] 〔Introduction Member〕 As shown in FIGS. 6, 7, and 8, the introduction member 8 is a plate-shaped member. FIG. 6 shows the left introduction member 8 provided on the left divider 32. A recess 81 that is recessed laterally outward (left side in FIG. 6) of the vehicle body 1 is formed at the lower end of the introduction member 8. The recess 81 is formed from the front end of the introduction member 8 to the front-rear intermediate portion 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-back portion 82 that is formed by folding back from the front end of the introduction member 8 to the lateral outside of the vehicle body 1. The folded-back portion 82 covers the front portion of the divider support frame 32d.

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

[0082] As shown in FIGS. 4 and 5, the introduction member 8 covers the space from the side wall 15 to the divider 32 from the lateral inside of the vehicle body 1. Thereby, the divider 32 prevents the scraped crops from entering the space from the side wall 15 to the divider 32.

[0083] The introduction member 8 extends from the lower part to the upper part of the divider 32. Specifically, the introduction member 8 extends from the lower end of the inner screw 32a to the upper part of the inner screw 32a. Not limited to this, the introduction member 8 may extend from the lower part to the upper-lower intermediate part of the divider 32. The lower end of the introduction member 8 is located at the same height as the lower end of the weed separating body 31.

[0084] The introduction member 8 extends from the front part of the side wall 15 to the rear part of the divider 32. Specifically, the introduction member 8 extends from the front part of the side wall 15 to the front part of the divider support frame 32d. The lower end of the introduction member 8 extends from the rear part of the weed separating body 31 to the front part of the side wall 15. Not limited to this, if the space from the side wall 15 to the divider 32 is covered by other members, the introduction member 8 may not extend from the front part of the side wall 15 to the rear part of the divider 32.

[0085] The introduction member 8 covers the hydraulic cylinder 36 from the inner side of the vehicle body 1 laterally. Thereby, it is possible to prevent the crop from coming into contact with the hydraulic cylinder 36 and the arm 33 from being unable to swing.

[0086] 〔Recess〕 As shown in FIGS. 6, 7, and 8, the recess 81 has a first surface 81a that extends while inclining laterally outward of the vehicle body 1 downward, a second surface 81b that is located below the first surface 81a and extends while inclining laterally outward of the vehicle body 1 forward, 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 the present embodiment, the first surface 81a, the second surface 81b, and the third surface 81c are flat surfaces.

[0087] As shown in FIG. 7, the angle θ1 formed by the first surface 81a and the third surface 81c in a front view is an obtuse angle. Thereby, compared with the case where the angle of the angle θ1 is smaller than an obtuse angle, the crop is less likely to be caught by the angle θ1, so that it becomes easier to guide the crop to the conveying device 4.

[0088] As shown in FIG. 8, the angle θ2 formed by the second surface 81b and the third surface 81c in a bottom view is an obtuse angle. Thereby, compared with the case where the angle of the angle θ2 is smaller than an obtuse angle, the crop is less likely to be caught by the angle θ2, so that it becomes easier to guide the crop to the conveying device 4.

[0089] A line L3 indicated by a dashed line in FIGS. 5, 7, and 8 is a virtual line that extends along the front-rear direction through the inner lateral end of the vehicle body 1 in the introduction member 8. Further, a line L4 indicated by a dashed line in FIGS. 5, 7, and 8 is a virtual line that extends along the third surface 81c which is the inner lateral end of the vehicle body 1 in the introduction member 8. The line L4 is located more laterally outside of the vehicle body 1 than the line L3. The linear distance W3 in the vehicle body lateral direction between L3 in the left divider 32 and L3 in the right divider 32 is larger than the linear distance W4 in the vehicle body lateral direction between L4 in the left divider 32 and L4 in the right divider 32.

[0090] The line L4 passes through the inner lateral end of the vehicle body 1 in the weed separating body 31. That is, the third surface 81c in the recess 81 is in the same position as the inner lateral end of the vehicle body 1 in the weed separating body 31 in the vehicle body lateral direction. Thereby, since the third surface 81c does not protrude more inward in the lateral direction of the vehicle body 1 than the weed separating body 31, the crops in the field can be widely taken in.

[0091] 〔Alternative Embodiment〕 The present invention is not limited to the above-described embodiment. For example, it may be configured as in the following alternative embodiments. In the alternative embodiments described below, the same configurations as those in the embodiment are given the same numbers and reference signs 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, it is not limited to this, and the number of arms 33 is arbitrary. For example, the number of arms 33 may be 1, or may be 3 or more.

[0093] 〔2〕At least one of the upper arm 34 and the lower arm 35 may not have inclined portions 34i, 35i, and may extend forward while curving after extending outward in the lateral direction of the vehicle body 1. Also, at least one of the upper arm 34 and the lower arm 35 may extend outward in the lateral direction of the vehicle body 1 and then bend at a right angle and extend forward.

[0094] 〔3〕In the above-described embodiment, the inner lateral ends of the front side portions 34f, 35f of the upper arm 34 and the lower arm 35 in the vehicle body lateral direction are located more outward in the lateral direction of the vehicle body 1 than the inner lateral ends of the rear side portions 34b, 35b in the vehicle body lateral direction. However, it is not limited to this, and only one of the upper arm 34 and the lower arm 35 may have the inner lateral end of the front side portion 34f, 35f in the vehicle body lateral direction located more outward in the lateral direction of the vehicle body 1 than the inner lateral end of the rear side portion 34b, 35b.

[0095] 〔4〕In the above-described embodiment, the introduction member 8 is located behind the inner screw 32a. However, it is not limited to this, and the introduction member 8 may be located behind both the inner screw 32a and the outer screw 32b.

[0096] 〔5〕The concave portion 81 may have any shape. For example, the concave portion 81 may be formed as a curved surface. The concave portion 81 may be triangular in a front view. The concave portion 81 may be triangular in a plan view.

[0097] 〔6〕If the line L4 is located more laterally outside the vehicle body 1 than the line L3, the laterally outer end of the concave portion 81 on the vehicle body 1 may be located more laterally inside the vehicle body 1 than the laterally inner end of the vehicle body 1 in the grass dividing body 31.

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

[0099] 〔8〕The sugarcane harvester may not be provided with the rear conveying device 6. In this case, the harvested product sorted by the sorting device 5 is discharged into a storage bag for the harvested product 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 alternative embodiments, the same applies hereinafter) can be applied in combination with the configurations disclosed in other embodiments as long as no contradiction occurs. Also, the embodiments disclosed in this specification are illustrative, and the embodiments of the present invention are not limited thereto, and can be appropriately modified within the scope not departing from the object of the present invention.

Industrial Applicability

[0102] The present invention can be applied not only to sugarcane harvesters but also to combines or other harvesters for harvesting soybeans, corn, etc.

Explanation of Reference Numerals

[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 34f: Front side part (first part) 34b: Rear side part (first part) 34i: Inclined part 35: Lower arm 35b: Rear side part (first part) 35f: Front side part (second part) 35i: Inclined part 81: Concave part 81a: First surface 81b: Second surface 81c: Third surface θ1: Angle θ2: Angle

Claims

1. A vehicle body, left and right dividers that separate the harvested crops from the crops left in the field, and an arm that supports the dividers on the vehicle body in a state where they can swing up and down, comprising: The arm, has a first part that is the end on the divider side, and a second part that is the end on the vehicle body side, A harvesting machine in which the inner end of the first part in the vehicle body width direction is located laterally outside the vehicle body than the inner end of the second part in the vehicle body width direction.

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

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

4. The harvesting machine according to claim 1, wherein the arm has an inclined portion that extends while inclining laterally outside the vehicle body toward the front.

5. The harvesting machine according to claim 1, wherein the arm is a hollow box-shaped member.

6. The harvesting machine according to claim 1, wherein the arm is swingable around an axis extending in the vehicle body width direction.

7. Further comprising a conveying device that is located behind the divider and conveys the harvested crops, The divider has a rotator that is rotatable around 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, The harvesting machine according to claim 1, wherein a concave portion that concaves laterally outside the vehicle body is formed at the lower end of the introduction member.

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

9. The introduction member is a plate-shaped member, The harvesting machine according to claim 7, wherein the concave portion has a second surface that extends while inclining laterally outside the vehicle body forward.

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

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