JP7493445B2 - combine - Google Patents

Description

The present invention relates to a combine harvester that is equipped with a harvesting section at the front of the machine body that harvests planted stalks, and that is equipped with multiple lifting devices lined up in the left-right direction on the harvesting section, and side covers that cover both the left and right sides of the multiple lifting devices.

In the above combine harvester, the side cover has traditionally been configured to form a flat surface over almost the entire vertical area (see, for example, Patent Document 1).

JP 2011-239727 A

In the conventional configuration described above, the side cover has a flat surface and extends in the vertical direction, so the lower end of the side cover protrudes outward laterally. As a result, a step is created in the left-right direction between the weeding tool located at the front of the machine and the side cover, which causes the base of the crop being weeded to come into contact with the bottom of the side cover, causing the crop to bend or fall over, among other disadvantages.

Therefore, there was a demand for a way to prevent the side ends of the cutting section from damaging the crops.

The characteristic configuration of the combine harvester according to the present invention is that the harvester is provided with a harvesting section at the front of the machine body for harvesting planted stalks, and the harvesting section is provided with a plurality of lifting devices arranged in the left-right direction, left and right side covers covering the left and right sides of the plurality of lifting devices, and a grass dividing rod provided at one left-right end of the harvesting section for guiding uncut stalks away from the machine body, and the grass dividing rod is supported so as to be switchable between a use state in which it protrudes outward in the left-right direction by swinging up and down, and a storage state in which it retracts to the left-right center side and does not protrude outside the machine body, and a recessed space is formed at the lower part of the side cover that recesses toward the left-right center side with respect to the upper part of the side cover, and the grass dividing rod is configured to enter the front recessed space in a rear-upward inclined shape in the storage state, The side cover is shaped such that the upper edge of the recessed space extends in an upwardly sloping manner to the rear , and the area of the side cover which overlaps with the grass splitter rod when viewed from the side of the aircraft is recessed toward the center in the left-right direction from the upper part of the side cover, and the lower part of the side cover is shaped such that it approaches the center in the left-right direction from the upper part of the side cover.

According to the present invention, the lower part of the side cover is shaped to be closer to the left-right center than the upper part of the side cover, so there is no or only a small step between the weed splitter located on the front side of the side cover and the side cover. As a result, the crops are easily guided smoothly from the weed splitter to the side cover, reducing the risk of damage to the crops.

Therefore, it is possible to prevent damage to crops at the lateral ends of the cutting part.
In addition, when the grass splitter is in the stored state, it is inserted into the recessed space of the side cover, and as a result, the shape of the side cover can be effectively utilized to store the grass splitter, thereby reducing the amount of protrusion outwardly to the side of the vehicle body.

In addition, because the lower part of the side cover is recessed, it penetrates sharply toward the center in the left-right direction, and while there is little change in the position downward, the amount of penetration toward the center in the left-right direction can be made large.

In the present invention, it is preferable that the upper portion of the side cover is configured as a flat first surface, the lower portion is configured as a flat second surface, and the second surface is recessed toward the center from the first surface via a step portion.

With this configuration, compared to a shape that is curved over a wide range, the protrusion of the side cover in the left-right direction can be minimized while the lower part can be moved closer to the center in the left-right direction.

In the present invention, it is preferable that the step portion is provided in a sloping shape that rises upward toward the rear.

With this configuration, crops are guided from the base of the plant at the front, and the step section with a rising slope at the rear allows them to be smoothly guided upwards gradually.

In the present invention, it is preferable that the step portion extends parallel to the upper edge of the side cover when viewed from the side of the aircraft, and extends from the front to the rear of the side cover.

With this configuration, the ribs extend from the front to the rear, and function as reinforcing ribs that reinforce the strength of the side covers.

In the present invention, it is preferable that the upper portion is provided with a mounting fixture for attaching the side cover to the aircraft body fixing portion.

With this configuration, the attachment is located at the top, so the operator can easily operate it while standing without having to bend over.

In the present invention, it is preferable that a plurality of the mounting fixtures are provided, and that, in a side view of the aircraft, the arrangement direction of the mounting fixtures, the upper edge of the side cover, and the step portion that is provided in an upwardly sloping shape extend parallel to each other.

With this configuration, the attachment is located in the area between the upper edge, which is reinforced with a bent shape or other strength reinforcement, and the step portion, which functions as a reinforcing rib, so that when the attachment is operated, it can be reinforced from both the top and bottom, reducing the risk of deformation.

In the present invention, it is preferable that, in the stored state, the grass splitter rod fits into the recessed space and is entirely located to the left-right center side of the outer end position of the aircraft.

With this configuration, even if an object comes into contact with the side of the machine while it is moving, the grass splitter is unlikely to come into contact with the object, and the risk of the grass splitter being damaged can be avoided.

In the present invention, it is preferable that the base end of the dividing rod that is supported so as to be able to swing is located laterally inward from the free end of the dividing rod in the stored state, and that a second recess that is further recessed toward the center in the laterally direction is formed in a portion of the second surface of the side cover that corresponds to the vicinity of the base end.

With this configuration, the base end of the grass splitter rod fits into the second recess, minimizing the amount of the grass splitter rod protruding outward laterally.

In the present invention, it is preferable that the pivot point of the splitter rod is located at approximately the same position in the left-right direction relative to the second surface of the side cover, or at a position toward the center in the left-right direction relative to the second surface.

This configuration allows the base end of the grass splitter rod to be moved as far inward as possible in the left-right direction, reducing the risk of interference with other objects.

FIG. FIG. This is an oblique view showing the attached and detached state of the leftmost grass division frame. This is an oblique view showing the attachment and detachment state of the right-end grass division frame. This is an exploded perspective view showing the attachment state of the grass dividing tool at the end. FIG. 13 is a diagram showing the posture change state of the end portion of the grass dividing tool. FIG. 4 is a left side view showing the left side cover attached state. FIG. 4 is a side view of the left side cover. 9 is a cross-sectional view taken along line IX-IX of FIG. 8. 9 is a cross-sectional view taken along line XX in FIG. 8. FIG. FIG. 4 is a vertical sectional front view showing a supporting state of the left side cover. FIG. 4 is a left side view showing the right side cover attached state. FIG. 4 is a vertical sectional front view showing a supporting state of the right side cover. FIG. FIG. 4 is a rear view of the left side cover. This is a front view of the grass dividing tool on the left side.

An embodiment of the present invention will be described with reference to the drawings. In the following description, the direction of the arrow "F" is the "front side of the aircraft", the direction of the arrow "B" is the "rear side of the aircraft" (see Figure 1), the direction of the arrow "L" is the "left side of the aircraft", and the direction of the arrow "R" is the "right side of the aircraft" (see Figure 2).

〔overall structure〕
As shown in Fig. 1, the combine harvester according to the present invention includes a traveling body 1 and a reaping unit 2 capable of reaping seven rows of planted culms. The reaping unit 2 is connected to the traveling body 1 so as to be capable of swinging up and down about a horizontal axis P1, and is provided so as to be capable of being driven up and down by a lifting hydraulic cylinder 3.

The traveling machine body 1 is equipped with left and right crawler traveling devices 4, and the driving unit 5 is provided on the right side of the front part of the machine body (one side in the left-right direction). Behind the driving unit 5, a threshing device 6 that threshes the stalks harvested by the harvesting unit 2 and a grain tank 7 that stores the grains obtained by the threshing process are provided side by side in the machine body. The driving unit 5 is covered by a cabin 8. Although not shown, the threshing device 6 clamps the base of the harvested stalks transported from the harvesting unit 2 with a threshing feed chain 9 and transports them, threshing the tip side inside the threshing chamber, and sorting the stalks into grains and dust in a sorting unit provided at the bottom of the threshing chamber. The grains are stored in the grain tank 7, and the dust is discharged outside the machine. It is equipped with a grain discharge device 10 that can discharge the grains stored in the grain tank 7 to the outside, and a shredding device 11 that shreds the waste straw after threshing and then discharges it outside the machine.

The harvesting section 2 is equipped with a number of (8) weed-dividing tools 12 that are spaced apart in the left-right direction and guide the planted culms to be introduced into the seven culm introduction paths, a number of (7) lifting devices 13 that are aligned left-right corresponding to each of the culm introduction paths and lift the planted culms, a clipper-type cutting blade 14 that cuts the base of the lifted planted culms, and a transport device 15 that merges the harvested culms in the cutting width direction and transports them backwards.

The lifting device 13 is provided in an upright position with its lower end located toward the front of the machine body and its upper end located toward the rear of the machine body. The lifting device 13 is provided with a drive wheel 16, tension wheel 17, guide wheel 18, and an endless rotating chain 19 that is stretched across the drive wheel 16, which rotates around a longitudinal axis, inside a lifting case that also serves as a frame, and the endless rotating chain 19 is provided with a number of lifting claws 20 spaced at predetermined intervals along the longitudinal direction. The lifting claws 20 are configured to lift the planted stalks upward along the path along which they move upward.

The conveying device 15 is equipped with a number of packers 21 as scraping bodies that scrape the bases of the culms cut by the cutting blades 14 backward, a base clamping and conveying device 22 that clamps the bases of the harvested culms and conveys them backward, and a tip retaining and conveying device 23 that retains and conveys the tips of the harvested culms.

The multiple grass dividing tools 12 are each supported at the front end of a grass dividing frame 24, which acts as a front-rear frame extending in the front-rear direction. The left grass dividing tool 12a and the right grass dividing tool 12b, which are the outermost grass dividing tools located at the outermost left-right sides of the multiple grass dividing tools 12, are configured so that the mowing width can be changed by changing their posture.

As shown in FIG. 3, the left weed dividing tool 12a and the right weed dividing tool 12b have their connecting parts 25 detachably connected to the grass dividing frame 24 by bolts bo. As shown in FIG. 4, by changing the bolt connection point of the connecting parts 25 to the grass dividing frame 24, the left-right orientation can be changed to change the mowing width.

[Bunkusa Frame]
In a seven-row combine, in order to fit the width of the cutting section 2 within the width of the container when it is loaded into a transport container, each of the grass dividing frames 24a, 24b supporting the left grass dividing tool 12a and the right grass dividing tool 12b is configured to be detachable from the cutting frame 26 supporting the entire cutting section 2.

As shown in FIG. 5, the grass division frame 24a on the left end has a first mounting portion 27, a second mounting portion 28, and a third mounting portion 29. The first mounting portion 27 and the second mounting portion 28 are connected to the grass division frame 24a by welding. The third mounting portion 29 is connected to the grass division frame 24a by welding via a support member 30 made of a round pipe material.

The fixed side of the cutting unit 2 is equipped with a cylindrical horizontal frame 31 that houses a drive shaft (not shown), a cutting blade frame 32 that supports the cutting blade 14, and a plate-shaped frame 33 that is connected to the cutting blade frame 32 and supports the lower part of the lifting device 13. The grass dividing frame 24a on the left end is removably connected with bolts to the end of the horizontal frame 31 and to both the front and rear of the plate-shaped frame 33. The horizontal frame 31 and the cutting blade frame 32 correspond to the cutting frame 26.

As shown in Figure 6, the grass dividing frame 24b on the right end is similarly removably connected to the end of the horizontal frame 31 and both the front and rear of the plate-shaped frame 33 by bolts via the first mounting part 34, the second mounting part 35, and the third mounting part 36. The third mounting part 36 is connected by welding to the grass dividing frame 24a via a support member 37 made of round pipe material.

[Dividing the grass]
A grass dividing rod 38 for dividing and guiding uncut stalks away from the machine body is provided at the left end portion, which is one of the left and right sides, of the reaping unit 2. The grass dividing rod 38 extends rearward in a cantilever shape from a base end portion 38A located at the front lower portion.

The grass dividing rod 38 is supported so that its base end 38A can swing up and down around the front-to-rear axis by a fulcrum member 71 provided on the left-end grass dividing frame 24a. The grass dividing rod 38 is supported so that it can swing up and down between a use state in which it protrudes outward in the left-right direction, and a stored state in which it retracts to the center left and right and does not protrude outside the machine body. A manually operated switching mechanism 40 is provided that acts on a mid-way position of the grass dividing rod 38 in the front and rear directions to switch between the use state and the stored state.

[Side cover]
7 and 13, the mowing unit 2 is provided with left and right side covers 41 that cover both left and right lateral sides of the multiple lifting devices 13. Left and right headlight devices 42 and left and right headlight covers 43 that cover the headlight devices 42 are provided above the left and right side covers 41. In the following description of the side covers 41, the positional relationship of the side covers 41, that is, the up-down positional relationship and the front-to-rear positional relationship of the side covers 41, will be described on the assumption that the mowing unit 2 is in a normal working state (the state shown in FIG. 1) in which it is lowered to the lowest position.

The headlight cover 43 is configured to cover the periphery of the headlight device 42 provided at the upper part of both the left and right sides of the cutting unit 2, as well as the upper part of the lateral sides of the multiple lifting devices 13 on both the left and right sides.

The left and right side covers 41 are configured to cover the lower portions of the lateral sides of the multiple lifting devices 13 on both the left and right sides. The left and right side covers 41 are symmetrical and have the same configuration except for some components described below, so the same configuration will be described.

As shown in FIG. 8, when viewed from the side of the aircraft, the front edge 44 of the side cover 41 extends diagonally upward along the front surface of the raising device 13, and the lower edge 45 extends along the grass dividing frame 24, with the front end 46 formed by the front edge 44 and the lower edge 45 being tapered.

The side cover 41 also has a tapered upper end 47 and a rear bulge 48 that projects rearward from an imaginary line K1 that connects the topmost point 47a of the upper end 47 and the corner at the rear end of the lower edge 45. The rear bulge 48 is tapered. By providing the rear bulge 48 in this way, the side cover 41 is configured to cover the lateral sides of the packers 21 located at both ends in the left-right direction among the multiple packers 21.

The uppermost point 47a of the upper end 47 is located rearward of a vertical imaginary line K2 that extends vertically from the corner at the rear end of the lower edge 45. In addition, a first corner 49 located on the upper side and a second corner 50 located on the lower side are formed in the middle of the rear edge extending from the uppermost point 47a of the upper end 47 to the rear end of the lower edge 45. The interior angle of the second corner 50 is smaller than the interior angle of the first corner 49.

As shown in Figures 9 and 10, the side cover 41 is shaped so that the lower portion of the side cover 41 is closer to the left-right center than the upper portion of the side cover 41. On the rear side, as shown in Figure 10, the side cover 41 has an upper portion that is substantially flat and configured with a first surface 51 that extends in the vertical direction, and a lower portion that is flat and configured with a second surface 52 that extends in the vertical direction, with the second surface 52 receding toward the center beyond the first surface 51 via a step portion 53. Therefore, the lower portion of the side cover 41 is recessed toward the left-right center relative to the upper portion.

As shown in Figures 1, 7, and 8, the step 53 formed between the first surface 51 and the second surface 52 is in a low position at the front and is provided in a rearwardly upward sloping shape so that it gradually becomes higher toward the rear. The step 53 extends from the front to the rear of the side cover 41, extending parallel to the upper edge of the side cover 41 when viewed from the side of the aircraft.

As shown in FIG. 2, the lower part of the side cover 41 and the outermost weeding tools (left weeding tool 12a and right weeding tool 12b) located at the outermost left and right sides are smoothly and continuously connected to the outer left and right edges of the lower part and the outer left and right edges of the outermost weeding tools when viewed from the front.

As described above, the left weeding tool 12a and the right weeding tool 12b can change the mowing width by changing their posture, and in any of the postures that can be changed, the lower left-right outer edge and the left-right outer edge of the weeding tool 12 are smoothly and continuously connected. As shown in FIG. 17, the left weeding tool 12a is in a state where a tangent at any point of the left-right outer edge t1 of the lower part of the side cover 41L coincides or nearly coincides with a tangent at any point of the left-right outer edge t2 of the left weeding tool 12a in a front view. In addition, both the left weeding tool 12a and the right weeding tool 12b are configured so that the left-right outer edge of the lower part of the side cover 41 and the left-right outer edge of the weeding tool 12 always intersect in a front view, even if the posture is changed.

As shown in Figures 7 and 12, the side cover 41 is provided with a cover body 41A, a non-movable first hook member 55 supported by the cover body 41A and engaged with a lower retainer 54 as a second receiving member supported by the grass dividing frame 24, and a movable second hook member 57 (an example of an attachment) supported by the cover body 41A and capable of switching its position between an engaged state and an unlocked state with respect to an upper retainer 56 (machine body side fixed part) as a first receiving member supported by the lifting device 13 and the support body on the cutting unit side.

When the first hook member 55 is engaged with the lower retaining tool 54, the side cover 41 can swing in and out of the aircraft with the engagement position with respect to the first hook member 55 as the axis. In this way, when the first hook member 55 is engaged with the lower retaining tool 54, the side cover 41 is swung so that the second hook member 57 approaches the upper retaining tool 56, and the second hook member 57 is engaged with the upper retaining tool 56, thereby holding the position. Also, when the second hook member 57 is released from the upper retaining tool 56, the position holding state is released.

The second hook member 57 is supported by a holding member 58 attached to the cover body 41A so as to be swingable around the front-to-rear axis, and is biased by a spring (not shown) to swing toward the side where it engages with the upper holding tool 56 (upward). An operating lever 59 is provided for manually swinging the second hook member 57.

When the second hook member 57 is swung inward to a position corresponding to the upper retainer 56 while the first hook member 55 is engaged with the lower retainer 54, the second hook member 57 swings against the spring force and automatically switches to a locked state, holding the side cover 41 in place. The side cover 41 can then be removed by swinging the second hook member 57 with the operating lever 59 against the spring force to release the locked state.

The left and right side covers 41 are each provided with two second hook members 57. They are arranged diagonally in a side view, with the front second hook member 57 located on the lower side and the rear second hook member 57 located on the upper side.

When viewed from the side of the aircraft, the two second hook members 57 extend in parallel with the upper edge 60 of the side cover 41 and the step portion 53 that is inclined upward toward the rear.

As shown in FIG. 12, the first hook member 55 has a locking portion 61 that locks onto the lower retainer 54, and an extension portion 62 that extends downward along the cover body 41A in the vertical direction on the opposite side to the side on which the second hook member 57 is provided, i.e., downward, and is configured with a width smaller than the distance in the horizontal direction between the locking point of the locking portion 61 that locks onto the lower retainer 54 and the cover body 41A.

The first hook member 55 is a plate-shaped member that hangs vertically from the inner surface of the cover body 41A toward the left and right center, and the locking portion 61 has a recess into which the lower retainer 54 made of a round bar material fits. The portion of the extension portion 62 that extends downward from the locking portion 61 has a width approximately equal to the distance between the locking portion that locks into the lower retainer 54 and the cover body 41A, but the width gradually narrows toward the bottom, and further downward a narrow portion of the same width extends downward. The plate-shaped frame 33 is positioned in the space formed by the narrow portion of the extension portion 62 of the first hook member 55.

In this way, the first hook member 55 is configured to ensure support strength by lengthening the receiving portion for the cover body 41A in the vertical direction while avoiding interference with the plate-shaped frame 33 provided to detachably support the grass division frames 24a, 24b at the left and right ends.

As shown in FIG. 5, the lower retainer 54 to which the first hook member 55 of the left side cover 41L of the left and right side covers 41 is engaged is a rod-shaped member bent into an approximately inverted U shape, and both front and rear ends are connected to the plate-shaped frame 33 by welding. The lower retainer 54 corresponding to the left side cover 41L is provided in a position slightly inward in the left-right direction relative to the grass dividing frame 24a.

As shown in FIG. 6, the lower retainer 54 to which the first hook member 55 of the right side cover 41R of the left and right side covers 41 is engaged is a rod-shaped member bent into an approximately inverted U shape, and its front and rear ends are connected by welding to the upper end of the third mounting part 36 and the rear part of the right-most grass dividing frame 24b. The third mounting part 36 is supported by the support member 30 on the grass dividing frame 24b. This support configuration corresponds to the support part that supports one of the receiving members. The lower retainer 54 corresponding to the right side cover 41R is supported by the grass dividing frame 24b, and is therefore provided in approximately the same position as the grass dividing frame 24b in the left-right direction.

At the front-rear end of the side cover 41, an end surface is formed in a state intersecting with the axis direction. Of the rear end surface 63, the side where the second hook member 57 is provided relative to the first hook member 55 in the up-down direction, i.e., the upper edge, is formed so that the distance from the axis becomes shorter the further inward in the left-right direction when viewed along the axis direction (front-rear direction).

To explain further, as shown in Figures 15 and 16, the rear end surface 63 of the side cover 41 extends inward in the left-right direction over the entire range in the vertical direction. By providing the rear end surface 63 in this way, rotating bodies such as the packer 21 of the reaping unit 2 are covered so that they cannot be seen from the rear outside of the machine body.

The upper edge of the rear end surface 63 is provided with an inclined portion 64 that is inclined so that it moves away from the lower end of the headlight cover 43 as it moves left and right inward. When viewed along the front-rear direction, the inclined portion 64 is shaped so that the distance from the axis becomes shorter as it moves left and right inward. By providing the inclined portion 64 in this manner, there is less risk that the upper edge of the side cover 41 will get caught on the lower end of the headlight cover 43 when the side cover 41 is attached.

The upper edge of the side cover 41 is formed with a folded portion 65 that is folded inward in the left-right direction from the front end to the rear end face. The rear end face 63 is provided with a horizontal surface portion 66 at the upper edge, on the outer left-right side, that is folded back in the front-rear direction while continuing to the folded portion 65. By providing the horizontal surface portion 66 in this way, the rear end face 63 can be reinforced.

[Right side cover]
15, an inward extension 67 extending toward the inside of the aircraft is formed on the right side cover 41R on the opposite side in the up-down direction to the side where the second hook member 57 is provided relative to the first hook member 55, i.e., on the lower end. By providing such an inward extension 67, it functions as a reinforcing rib to improve the support strength at the lower side of the side cover 41R and can prevent crops or mud from falling on it from below.

The inward extension 67 has a recess 68 that recesses toward the outside of the aircraft. As shown in FIG. 14, the recess 68 is formed in the right side cover 41R at a location that corresponds to the support member 37 when the side cover 41R is held in position. The support member 37 is located below the lower retainer 54. When the second hook member 57 is swung from a state in which the side cover 41R is held in position to release the position holding state, the upper part of the right side cover 41R moves outward in the left-right direction, and the part of the right side cover 41R below the engagement position with the lower retainer 54 moves slightly outward in the left-right direction. At that time, the recess 68 prevents the inward extension 67 from coming into contact with the support member 37, and the removal operation can be performed smoothly.

A driver's section 5 is provided behind the right side cover 41R and is covered by a cabin 8. As shown in Fig. 13, the driver's section 5 is provided with an upper section 5A having a riding space for the driver, and a lower section 5C located below and separated from the riding space by a floor section 5B on which the driver places his/her feet. A lower front wall section 69 located in front of the lower section 5C of the driver's section 5 is provided in a forward-leaning position such that the lower section is closer to the rear of the aircraft.

As shown in FIG. 13, the right side cover 41R extends to a height that overlaps with the lower front wall portion 69 in the vertical direction, and the rear end portion of the side cover 41R is shaped to follow the slope of the lower front wall portion 69 in a side view during mowing operations.

[Left side cover]
In the stored state, the grass dividing rod 38 is configured to enter a recessed space 70 formed in the step portion 53 of the left side cover 41L, and the entire grass dividing rod 38 is configured to fit on the left-right central side of the outer end position of the machine body. The base end portion 38A of the grass dividing rod 38, which is supported so as to be able to swing, is located on the left-right inner side of the free end portion of the grass dividing rod 38 in the stored state.

A fulcrum member 71 that supports the base end 38A of the grass dividing rod 38 so that it can swing up and down is welded to the support member 30 that supports the third mounting portion 29 to the grass dividing frame 24a. The swing fulcrum of the grass dividing rod 38 formed by the fulcrum member 71 is located at approximately the same position in the left-right direction relative to the second surface 52 of the side cover 41L.

As shown in Figures 7, 9, and 11, a second recess 72 that recesses toward the center in the left-right direction is formed on the second surface 52 of the left side cover 41L at a location corresponding to the vicinity of the base end 38A. The second recess 72 is formed in a groove shape that extends diagonally upward and rearward so that the base end 38A of the grass splitter 38 fits inward in the left-right direction when the grass splitter 38 is in the stored state.

While the swing fulcrum of the grass dividing rod 38 is stably supported by the grass dividing frame 24a, the base end 38A of the grass dividing rod 38 enters the second recess 72, bringing the base end 38A as far inward as possible in the left-right direction, preventing the grass dividing rod 38 from protruding outward to the side.

[Another embodiment]
(1) In the above embodiment, the step portion 53 is configured to extend parallel to the upper edge 60 of the side cover 41 when viewed from the side of the aircraft, from the front to the rear of the side cover 41. However, instead of this configuration, the step portion 53 may be provided halfway in the fore-and-aft direction, or may be provided at an angle to the upper edge 60 of the side cover 41.

(2) In the above embodiment, two mounting fixtures (second hook members 57) are provided, and the mounting fixtures are arranged in a direction parallel to the upper edge 60 of the side cover 41 and the step portion 53 when viewed from the side of the aircraft. However, instead of this configuration, three or more mounting fixtures may be provided, and the mounting fixtures may be arranged in a direction that intersects with the upper edge and the step portion.

( 3 ) In the above embodiment, the side cover 41 is configured to have the second recess 72 formed therein. However, the side cover 41 may be configured not to have such a second recess 72.

( 4 ) In the above embodiment, the swing fulcrum of the dividing rod 38 is located at approximately the same position in the left-right direction relative to the second surface 52 of the side cover 41, but instead of this configuration, the swing fulcrum of the dividing rod 38 may be located at a position closer to the center in the left-right direction than the second surface 52. Also, the swing fulcrum of the dividing rod 38 may be located at a position closer to the outer center in the left-right direction than the second surface 52.

( 5 ) In the above embodiment, the side cover 41 has a first surface 51 and a second surface 52 which are flat surfaces, and the lower portion of the side cover 41 is recessed toward the center in the left-right direction relative to the upper portion. However, instead of such a configuration, the side cover 41 may be embodied in various forms, such as a configuration in which the side cover 41 gradually deforms toward the center in the left-right direction as it is positioned lower, a configuration in which the entire side cover 41 is formed in an arc shape, or a configuration in which the entire side cover 41 is bent in a wave shape.

The present invention can be applied to head-feeding combine harvesters.

2 Mowing part 13 Raising device 38 Grass dividing rod 38A Base end part 41 Side cover 51 First surface 52 Second surface 53 Step part 56 Upper holding tool 56 (fixed part on machine body side)
57 Mounting tool (second hook member)
60 Upper end edge 70 Recessed space 72 Second recessed portion

Claims (9)

The front of the machine is equipped with a reaping section that harvests planted stalks.
The reaping section is provided with a plurality of lifting devices arranged in the left-right direction, left and right side covers covering both left and right lateral sides of the plurality of lifting devices, and a grass dividing rod provided at one end of the left and right direction of the reaping section to guide the uncut stalks away from the machine body.
The grass splitter is supported so as to be switchable between a use state in which it protrudes outward in the left-right direction and a storage state in which it retracts to the left-right center side and does not protrude outward to the outside of the machine body by swinging up and down,
A recessed space is formed in a lower portion of the side cover, the recessed space being recessed toward a center in a left-right direction relative to an upper portion of the side cover,
The grass splitter is configured to enter the recessed space in a rearwardly upwardly inclined shape in the stored state,
The side cover is shaped so that the upper edge of the recessed space extends in an upwardly sloping manner to the rear , and the area of the side cover that overlaps with the grass dividing rod when viewed from the side of the machine is recessed toward the center in the left-right direction relative to the upper part of the side cover , and the lower part of the side cover is shaped so that it approaches the center in the left-right direction relative to the upper part of the side cover. The side cover has an upper portion formed of a flat first surface and a lower portion formed of a flat second surface,
The combine harvester according to claim 1 , wherein the second surface is recessed toward the center in the left-right direction from the first surface via a step portion. The combine harvester according to claim 2, wherein the step portion is provided with a rearwardly upwardly inclined shape. The combine harvester according to claim 3, wherein the step portion extends parallel to the upper edge of the side cover in a side view of the machine body, from the front to the rear of the side cover. The combine harvester according to any one of claims 2 to 4, wherein the upper portion is provided with a mounting fixture for mounting the side cover to a fixing portion on the machine body side. A plurality of the mounting fixtures are provided,
The combine harvester according to claim 5 , wherein, in a side view of the machine body, the arrangement direction of the mounting fixtures, the upper end edge of the side cover, and the step portion provided in an upwardly inclined rearward shape extend parallel to each other. The combine harvester according to any one of claims 2 to 6, wherein the grass splitter rod, in the stored state, fits into the recessed space and is entirely located to the left-right center side of the outer end position of the machine body. The base end portion of the dividing rod that is supported so as to be able to swing is located on the inner side in the left-right direction than the free end portion of the dividing rod in the stored state,
A combine harvester as described in any one of claims 2 to 7, wherein a second recessed portion is formed on the second surface of the side cover at a location corresponding to the vicinity of the base end portion, the second recessed portion being further recessed toward the center in the left-right direction. The combine harvester according to any one of claims 2 to 8, wherein the swing fulcrum of the grass splitter is located at approximately the same position in the left-right direction relative to the second surface of the side cover, or at a position closer to the center in the left-right direction than the second surface.

Images