JP7419223B2 - combine - Google Patents

Description

The present invention is provided with a reaping section for reaping planted grain culms at the front of the machine, and the reaping section includes a plurality of hoisting devices arranged in the left-right direction, and covers the lateral sides of the plurality of hoisting devices on both sides in the left-right direction. The present invention relates to a combine harvester that is equipped with a side cover and a plurality of weeding tools that separate the grain culms to be reaped into a draft for each reaping row.

In the above combine harvester, conventionally, the uncut side of the left and right side covers, that is, the outer edge of the left side cover, is the mowed side of the weeding implement of the plurality of weeding implements when viewed from the front of the machine. The position was shifted in the left-right direction with respect to the outer edge of the holder, and protruded outward in the left-right direction (see, for example, Patent Document 1).

Japanese Patent Application Publication No. 2011-239727

In the conventional configuration described above, since the side cover protrudes outward in the left and right direction with respect to the weeding tool on the uncut side, during mowing work, the roots of the crops that are sorted and guided by the weeding tool on the uncut side are There is a risk that the crop may be damaged by coming into contact with the protruding portion of the side cover and getting caught, and the crop being pushed down or torn to pieces.

Therefore, it has been desired to be able to perform the reaping operation with less risk of damage to the crops at the left and right end portions of the reaping section.

A characteristic configuration of the combine harvester according to the present invention is that the front part of the machine is provided with a reaping part for reaping the planted grain culm, and the reaping part includes a plurality of pulling devices arranged in the left-right direction, and left and right of the plurality of pulling devices. Left and right side covers that cover the lateral sides on both sides in the direction, and a plurality of weeding tools that separate the grain culms to be reaped into each reaping row, and a lower part of the side cover and a plurality of the At least the outermost weeding tool located on the left side of the outermost weeding tools located at the outermost side in the left-right direction among the weeding tools includes an edge on the outer side in the left-right direction of the lower part, and the outermost weeding tool located on the left side, The outermost weed divider is provided so as to intersect with the outer edge in the left-right direction , and is recessed into the lower part of the side cover toward the center in the left-right direction with respect to the upper part of the side cover. A recessed portion is formed at a point where an outer edge in the left-right direction of the recessed portion intersects an outer edge in the left-right direction of the outermost weed divider located on the left side .

According to the present invention, during a mowing operation, when the crop that has been distributed and guided outward in the left-right direction by the outermost weeding tool comes into contact with the side cover located behind the outermost weeding tool, Also, when viewed from the front, the outer edge of the lower part of the side cover in the left and right direction intersects with the outer edge of the outermost weed divider in the left and right direction. It can be guided without coming into contact with the front part with strong force. In addition, since the lower part of the side cover is recessed, even if the crop is swung back to the side cover after the outermost weeding tool has passed, there is less risk of the base of the crop coming into contact with the side cover. , there is little risk of the stock being bent or pushed over.

Therefore, it has become possible to perform the reaping work with less risk of damage to the crops at the left and right ends of the reaping section.
In the present invention, a grass dividing rod is provided at the left end of the reaping section to move the uncut grain culms away from the machine body within the dividing draft, and the grass dividing rod is in a use state in which it extends outward in the left and right direction. It is preferable that the recess is supported so as to be switchable between a retracted state in which the recess is inserted into the recessed portion and then retracted toward the center in the left-right direction.

In the present invention, it is preferable that the outer edge of the lower portion in the left-right direction and the outer edge of the outermost weed divider in the left-right direction are smoothly and continuously connected.

According to this configuration, crops can be delivered while being smoothly guided from the outermost weeding tool toward the side cover.

In the present invention, the outermost weed divider is configured to be able to change the cutting width by changing its posture, and in any of the postures that the outermost weed divider can change, It is preferable that the side edge and the outer edge of the outermost weed divider in the left-right direction are smoothly and continuously connected.

According to this configuration, for example, it is possible to cope with differences in the spacing between planting rows of crops by changing the outermost weeding tool to a position where the outermost weeding tool does not hit the crops. By adjusting the outermost weeding tool to an appropriate position, crops can be transferred while being guided as smoothly as possible.

In the present invention, when viewed from the front, a tangent at an arbitrary point on the outer edge of the lower part in the left-right direction and a tangent at an arbitrary point on the outer edge of the outermost weed divider in the left-right direction. It is preferable that they match or substantially match.

According to this configuration, it becomes possible to transfer the crops from the outermost weeding tool toward the side cover while guiding the crops even more smoothly.

In the present invention, the lower part is provided with a recessed part recessed inward in the left-right direction, and the outer edge of the recessed part on the left-right direction outer side and the outermost edge of the outermost weed divider in the left-right direction. It is preferable that the edges intersect.

According to this configuration, since the lower part of the side cover is recessed, even if the crop is swung back to the side cover after the outermost weeding tool has passed, the base of the crop will come into contact with the side cover. There is less risk that the stock will be bent or pushed down.

In the present invention, it is preferable that the front end of the side cover and the rear end of the outermost weed divider are spaced apart in the front-rear direction.

According to this configuration, when attaching or detaching either the side cover or the outermost weeding implement independently, there is no disadvantage such as interference with each other, which makes it difficult to perform the work, and the work is easy to perform.

It is a side view of a combine. It is a front view of a combine. It is a perspective view which shows the attachment/detachment state of the left-most grass division frame. It is a top view which shows the attachment/detachment state of the right-most grass division frame. It is an exploded perspective view showing the attachment state of the weeding tool of the end. FIG. 6 is an exploded perspective view showing a state in which the posture of the end weeding implement is changed. FIG. 3 is a left side view showing the attached state of the left side cover. FIG. 3 is a side view of the left side cover. 9 is a sectional view taken along line IX-IX in FIG. 8. FIG. 9 is a sectional view taken along line XX in FIG. 8. FIG. FIG. 3 is a perspective view of the left side cover. FIG. 7 is a longitudinal sectional front view showing a supported state of the left side cover. FIG. 7 is a left side view showing a state in which the right side cover is attached. FIG. 7 is a longitudinal sectional front view showing a supported state of the right side cover. FIG. 3 is a perspective view of the right side cover. FIG. 3 is a rear view of the rear part of the left side cover. It is a front view of the leftmost weeding implement.

Embodiments of the present invention will be described based on the drawings. In the following explanation, the direction of arrow "F" will be referred to as "the front side of the fuselage" (see Figures 1 and 2), the direction of arrow "B" will be referred to as "the rear side of the fuselage" (see Figures 1 and 2), and the direction of arrow "B" will be referred to as "the rear side of the fuselage" (see Figures 1 and 2). The direction of arrow "L" is defined as the "left side of the aircraft" (see Figure 2), and the direction of the arrow "R" is defined as 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 machine body 1 and a reaping section 2 capable of reaping seven planted grain culms. The reaping section 2 is connected to the traveling body 1 so as to be able to swing up and down around the horizontal axis P1, and is provided so as to be driven up and down by a lifting hydraulic cylinder 3.

The traveling body 1 is equipped with left and right crawler traveling devices 4, and is equipped with a driving section 5 on the right side (one side in the left-right direction) of the front part of the body. Behind the driving section 5, a threshing device 6 for threshing the grain culm harvested by the reaping section 2 and a grain tank 7 for storing the grain obtained through the threshing process are arranged side by side in the machine body. It is equipped with. The driving section 5 is covered by a cabin 8. Although not shown, the threshing device 6 handles and processes the tip side of the harvested grain culm in the handling chamber while holding and conveying the stock of the harvested grain culm conveyed from the reaping section 2 by the threshing feed chain 9. Grain and dust are sorted in the sorting section provided at the bottom. Grain is stored in a grain tank 7, and dust is discharged outside the machine. It is equipped with a grain discharge device 10 capable of discharging grains stored in a grain tank 7 to the outside, and a shredding device 11 that shreds waste straw after threshing and discharges it outside the machine. .

The reaping section 2 includes a plurality of (eight) sowing plants that are provided at intervals in the left-right direction and are arranged in a dividing draft to introduce each row of planted grain culms to the seven grain culm introduction routes. A tool 12, a plurality of (seven) pulling devices 13 that are arranged in a row in the left-right direction corresponding to each of all the grain culm introduction routes, and that cause the planted grain culm, and a raised planting device. It is provided with a clipper-type cutting blade 14 as a cutting device for cutting the base of the grain culm, and a conveying device 15 that merges the harvested grain culms in the cutting width direction and conveys them rearward.

The lifting device 13 is provided in an upright position with its lower end located toward the front of the fuselage and its upper end located toward the rear of the fuselage. The lifting device 13 includes an endless rotating chain that is stretched over a driving wheel 16, a tension wheel 17, and a guide wheel 18, which rotate around a longitudinal axis, inside a lifting case that also serves as a frame. 19 is provided, and the endless rotating chain 19 is provided with a plurality of pulling pawls 20 at predetermined intervals along the longitudinal direction. The lifting claws 20 are configured to pull up the planted grain culm upward in the upward movement path.

The conveying device 15 includes a plurality of packers 21 as scraping bodies that scrape rearward the stalks of grain culms cut by the cutting blade 14, and a stalk clamper that grips the stalks of the harvested grain culms and transports them rearward. It is provided with a conveying device 22, a tip locking and conveying device 23 that locks and conveys the tip side of the harvested grain culm, and the like.

The plurality of weeding tools 12 are each supported by the front end portion of a weeding frame 24 serving as a front-rear frame extending in the front-rear direction. The left weeding tool 12a and the right weeding tool 12b, which are the outermost weeding tools located at the outermost side in the left-right direction among the plurality of weeding tools 12, can change the cutting width by changing their postures. It is configured.

As shown in FIG. 3, the left weeding tool 12a and the right weeding tool 12b have connecting portions 25 removably connected to the weeding frame 24 with bolts bo. As shown in FIG. 4, by changing the bolt connection location of the connection part 25 to the grass cutting frame 24, the left-right direction can be changed and the cutting width can be changed.

[Grass division frame]
In the 7-row mowing combine, in order to keep the width of the reaping part 2 within the width of the container when loading it into a container for transportation, a grass divider frame 24a that supports the left weed divider 12a and the right weed divider 12b, Each of 24b is configured to be detachable from the reaping frame 26 that supports the entire reaping section 2.

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

On the fixed side of the reaping section 2, there is a cylindrical horizontal frame 31 housing a drive shaft (not shown) therein, a cutting blade frame 32 that supports the cutting blade 14, and a pulling device 13 connected to the cutting blade frame 32. A plate-like frame 33 that supports the lower part of is provided. The left end grass dividing frame 24a is removably connected to the end of the horizontal frame 31 and both front and rear sides of the plate-shaped frame 33 with bolts. The horizontal frame 31 and the cutting blade frame 32 correspond to the cutting frame 26.

As shown in FIG. 6, the grass dividing frame 24b at the right end is also attached to the end of the horizontal frame 31 and the plate-shaped frame 33 via the first attachment part 34, the second attachment part 35, and the third attachment part 36. It is removably connected with bolts on both the front and rear sides. The third attachment portion 36 is welded to the grass dividing frame 24a via a support member 37 made of a round pipe material.

〔Branch stick〆
A weeding rod 38 is provided at the left end of the reaping section 2 as one side in the left-right direction to move the uncut grain culms away from the machine body. The dividing rod 38 extends rearward in a cantilevered manner from a base end portion 38A located at the lower front side.

The grass dividing rod 38 has a base end 38A supported by a fulcrum member 71 provided on the left end grass dividing frame 24a so as to be vertically swingable around the front-rear axis. The dividing rod 38 is supported so as to be able to be switched between a use state in which it extends outward in the left-right direction and a stored state in which it is retracted to the left-right center and does not extend out to the outside of the fuselage by swinging up and down. A manually operated switching mechanism 40 is provided which acts on a front and back intermediate position of the weeding rod 38 to switch between a use state and a stored state.

[Side cover]
As shown in FIGS. 7 and 13, the reaping section 2 is provided with left and right side covers 41 that cover the lateral sides of the plurality of raising devices 13 on both sides in the left and right direction. Above the left and right side covers 41, left and right headlight devices 42 and left and right headlight covers 43 that cover the headlight devices 42 are provided. In the following description of the side cover 41, the positional relationship of the side cover 41, that is, the vertical positional relationship of the side cover 41, and the front and rear positional relationship will be referred to in the normal working state (in FIG. The following explanation assumes that you are in the state shown below.

The headlight cover 43 covers the periphery of the headlight device 42 provided at the upper part of both left and right sides of the reaping section 2 and the upper part of the lateral sides of the plurality of raising devices 13 on both sides in the left and right direction. It is configured as follows.

The left and right side covers 41 are configured to cover lower portions of the lateral sides of the plurality of lifting devices 13 on both sides in the left and right direction. The left and right side covers 41 have a left-right symmetrical shape and have the same configuration except for some configurations to be described later, so the same configuration will be described.

As shown in FIG. 8, the side cover 41 has a front edge 44 extending obliquely upward along the front surface of the pulling device 13 and a lower edge 45 extending along the grass dividing frame 24 when viewed from the side of the aircraft. A front end 46 formed by a front edge 44 and a lower edge 45 is tapered.

In addition, the side cover 41 has an upper end portion 47 tapered toward the rear side from an imaginary line K1 connecting the top portion 47a of the upper end portion 47 and the corner at the rear end of the lower edge portion 45. A rear bulge portion 48 is provided that extends out. The rear bulge 48 is formed in a tapered shape. By providing the rear bulging portion 48 in this manner, it is configured to cover the lateral sides of the packers 21 located at both end portions in the left and right direction among the plurality of packers 21.

The uppermost portion 47a of the upper end portion 47 is located on the rear side of the vertical imaginary line K2 extending in the vertical direction from the corner at the rear end portion of the lower edge portion 45. Further, on the rear edge extending from the top part 47a of the upper end 47 to the rear end of the lower edge 45, a first corner 49 located on the upper side and a second corner located on the lower side are provided halfway up and down. A second corner 50 is formed. The interior angle at the second corner 50 is smaller than the interior angle at the first corner 49.

As shown in FIGS. 9 and 10, the side cover 41 is provided in such a shape that the lower part of the side cover 41 approaches the center in the left-right direction with respect to the upper part of the side cover 41. On the rear side, as shown in FIG. 10, the side cover 41 has a first surface 51 that is substantially flat at the top and extends in the vertical direction, and a second surface 52 that is flat and extends in the vertical direction at the bottom. The second surface 52 is recessed toward the center from the first surface 51 via a stepped portion 53. Therefore, the lower part of the side cover 41 is recessed toward the center in the left-right direction with respect to the upper part.

As shown in FIGS. 1, 7, and 8, the stepped portion 53 formed between the first surface 51 and the second surface 52 is located at a lower position on the front side and gradually becomes higher toward the rear side. It is installed in an upward sloping shape. The stepped portion 53 extends parallel to the upper edge of the side cover 41 when viewed from the side of the body, and extends from the front to the rear of the side cover 41 .

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 side in the left-right direction are located outside the lower part in the left-right direction when viewed from the front. The edge on this side and the edge on the outer side in the left-right direction of the outermost weed divider are smoothly and continuously connected.

As described above, the cutting width of the left weeding tool 12a and the right weeding tool 12b can be changed by changing their postures. The edge and the edge on the outer side in the left-right direction of the weed trimmer 12 are in a state in which they are smoothly and continuously connected. As shown in FIG. 17, the left weed divider 12a connects a tangent at an arbitrary point to the outer end edge t1 of the lower part of the side cover 41L in the left and right direction, and the outer side of the left weed divider 12a in the left and right direction when viewed from the front. The tangent line at an arbitrary location on the side edge t2 coincides or substantially coincides. In addition, even if the left weeding tool 12a and the right weeding tool 12b change their postures, when viewed from the front, they are always connected to the outer edge of the lower part of the side cover 41 in the left-right direction. The outer edge of the tool 12 in the left-right direction is configured to intersect.

As shown in FIGS. 7 and 12, the side cover 41 includes a cover body 41A and a lower holder 54 that is supported by the cover body 41A and is supported by the grass dividing frame 24. a non-movable first hook member 55 (an example of a fixture), and an upper holder as a first receiving member supported by the cover body 41A and supported by the lifting device 13 and the support on the reaping part side. A movable second hook member 57 is provided that can be switched between a state in which it is engaged with the hook member 56 and a state in which it is released from the engagement state.

In a state where the first hook member 55 is locked to the lower holder 54, the side cover 41 can swing in the inward and outward directions of the body about the locking position with respect to the first hook member 55 as the axis.
In this way, the side cover 41 is swung so that the second hook member 57 approaches the upper holder 56 while the first hook member 55 is locked to the lower holder 54, and the second hook member 57 is held in position by being engaged with the upper holder 56. Moreover, the position holding state is released by releasing the second hook member 57 from the upper holder 56.

The second hook member 57 is supported by a holding member 58 attached to the cover main body 41A so as to be swingable around the front and rear axis, and is swingable on the side (upper side) where it is locked to the upper holder 56 by a spring (not shown). Forced. 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 holder 56 while the first hook member 55 is engaged with the lower holder 54, the second hook member 57 is The side cover 41 swings against the biasing force of the spring and automatically switches to the locked state, thereby holding the side cover 41 in position. Then, the side cover 41 can be removed by swinging the operating lever 59 against the biasing force of the spring to release the locked state of the second hook member 57.

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

In a side view of the fuselage, the direction in which the two second hook members 57 are lined up, the upper edge 60 of the side cover 41, and the step portion 53 provided in an inclined shape extending rearward extend in parallel.

As shown in FIG. 12, the first hook member 55 includes a locking portion 61 that locks to the lower holder 54, and a second hook member 57 that is lower than the locking portion 61 in the vertical direction along the cover body 41A. is provided on the side opposite to the side where it is provided, that is, the width is smaller than the distance between the locking part of the locking part 61 that locks with the lower holding tool 54 and the cover main body 41A in the left-right direction. The extended portion 62 configured as shown in FIG.

The first hook member 55 is a plate-shaped member extending from the inner surface of the cover main body 41A toward the left and right center in a vertical position, and a lower holder 54 made of a round bar enters and locks into the locking portion 61. A recessed portion is formed. The portion of the extension portion 62 that extends downward from the locking portion 61 has approximately the same width as the distance between the locking portion that locks the lower holder 54 and the cover body 41A, but The width becomes progressively narrower toward the top, and further down, 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 extending portion 62 of the first hook member 55.

In this way, the first hook member 55 moves the receiving portion of the cover body 41A up and down while avoiding interference with the plate-like frame 33 provided for removably supporting the grass dividing frames 24a and 24b at the left and right ends. It is configured to be elongated in the direction to ensure support strength.

As shown in FIG. 5, the lower holder 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 shaped like a rod-shaped member bent into an approximately inverted U shape. Both front and rear ends are connected to a plate-shaped frame 33 by welding. The lower holder 54 corresponding to the left side cover 41L is provided at a position slightly inward in the left-right direction with respect to the grass dividing frame 24a.

As shown in FIG. 6, the lower holder 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 shaped like a rod-shaped member bent into an approximately inverted U shape. The front and rear ends are connected by welding to the upper end of the third attachment part 36 and the rear side of the right-hand end grass dividing frame 24b. The third attachment portion 36 is supported by the support member 30 on the grass dividing frame 24b. Such a support structure corresponds to a support portion that supports one receiving member. The lower holder 54 corresponding to the right side cover 41R is supported by the weeding frame 24b, and is therefore provided at approximately the same position as the weeding frame 24b in the left-right direction.

An end surface is formed at the end of the side cover 41 in the front-rear direction so as to intersect with the direction of the axis. Of the rear end surface 63, the side where the second hook member 57 is provided with respect to the first hook member 55 in the up-down direction, that is, the upper edge, extends along the axial direction (front-back direction). As seen, the distance from the axis becomes shorter as the position becomes more inward in the left-right direction.

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

The upper edge of the rear end surface 63 is provided with a sloped part 64 that slopes away from the lower end of the headlamp cover 43 as it goes inward in the left-right direction. The inclined portion 64 has a shape in which the distance from the axis becomes shorter toward the inner side in the left-right direction when viewed along the front-rear direction. By providing the inclined portion 64 in this manner, there is less possibility that the upper edge of the side cover 41 will be caught on the lower end of the headlamp cover 43 when the side cover 41 is attached.

A folded portion 65 is formed on the upper edge of the side cover 41 and is folded back inward in the left-right direction from the front end to the rear end surface. The rear end surface 63 is provided with a horizontal surface portion 66 formed by folding the end surface in the front-rear direction so as to be continuous with the folded portion 65 at a location on the outer side in the left-right direction of the upper edge. ing. By providing the horizontal surface portion 66 in this manner, the rear end surface 63 can be reinforced.

[Right side cover]
As shown in FIG. 15, in the right side cover 41R, on the side opposite to the side where the second hook member 57 is provided with respect to the first hook member 55 in the vertical direction, that is, on the lower end. An inwardly extending portion 67 is formed that extends toward the inside of the body. By providing such an inward extending portion 67, it functions as a reinforcing rib to improve the support strength on the lower side of the side cover 41R, and prevents crops or mud from falling on it from the lower side. I can do it.

A recessed portion 68 recessed toward the outside of the body is formed in the inwardly extending portion 67 . As shown in FIG. 14, a recessed portion 68 is formed in the right side cover 41R at a location corresponding to the column member 37 when the side cover 41R is held in position. The strut member 37 is located below the lower holder 54. When the second hook member 57 is swung to release the position holding state of the side cover 41R from the state in which the side cover 41R is held in position, the upper part of the right side cover 41R moves outward in the left-right direction, and the right side cover 41R moves outward in the left-right direction. The portion of 41R that is below the locking position with respect to the lower holder 54 is moved slightly outward in the left-right direction. At this time, since the recessed portion 68 is provided, the inwardly extending portion 67 does not come into contact with the support member 37, and the removal operation can be performed satisfactorily.

A driving section 5 is provided on the rear side of the right side cover 41R, and the driving section 5 is covered with a cabin 8. As shown in FIG. 13, the driving section 5 includes an upper part 5A having a boarding space where the driver rides, and a lower part located below and partitioned from the boarding space by a floor part 5B on which the driver places his feet. A portion 5C is provided. A lower front wall portion 69 located at the front of the lower portion 5C of the driving portion 5 is provided in a forward tilted position such that the lower the part, the closer to the rear of the body.

As shown in FIG. 13, the right side cover 41R extends to a height that overlaps the lower front wall 69 in the vertical direction, and the rear end of the side cover 41R is lowered when viewed from the side during reaping work. It has a shape that follows the slope of the side front wall portion 69.

[Left side cover]
In the retracted state, the dividing rod 38 is configured to enter into a recessed space 70 formed in the stepped portion 53 of the left side cover 41L, so that the entire branching rod 38 is housed closer to the center in the left-right direction than the outer end position of the fuselage. . The swingably supported base end 38A of the grass dividing rod 38 is located inward in the left-right direction from the free end of the grass dividing rod 38 in the retracted state.

A fulcrum member 71 that supports the base end 38A of the weeding rod 38 in a vertically swingable manner is welded to the support member 30 that supports the third attachment portion 29 on the weeding frame 24a. The swinging fulcrum of the weeding rod 38 formed by the fulcrum member 71 is located at substantially the same position in the left-right direction with respect to the second surface 52 of the side cover 41L.

As shown in FIGS. 7, 9, and 11, a second recessed portion 72 recessed toward the center in the left-right direction is formed at a location corresponding to the vicinity of the base end portion 38A on the second surface 52 of the left side cover 41L. has been done. The second recessed part 72 is formed in a groove shape that extends diagonally rearward and upward so that the base end 38A of the grass divider 38 enters inward in the left-right direction when the grass divider 38 is in the retracted state. .

The base end 38A of the grass divider 38 enters into the second recessed part 72 while stably supporting the swinging fulcrum of the grass divider 38 on the grass divider frame 24a. By moving inward in the left-right direction, it is possible to suppress the grass dividing rod 38 from protruding laterally outward.

[Another embodiment]
(1) In the above embodiment, the lower edges of the left and right side covers 41L and 41R on the outer side in the left-right direction, and the outer edges in the left-right direction of the left weeding tool 12a and the right weeding tool 12b, respectively. However, among these, at least for the left weed divider 12a, which is the outermost weed divider on the uncut side, the outermost part of the lower part of the side cover 41L in the left-right direction The side edge and the outer edge in the left-right direction of the weed trimmer 12a may be configured to be smoothly and continuously connected.

(2) In the above embodiment, the cutting width can be changed by changing the posture of the left weed divider 12a and the right weed divider 12b. Although the outer edge in the direction and the outer edge in the left-right direction of the weed trimmers 12a and 12b are arranged to be in a continuous and continuous state, such a position changeable configuration is not suitable. It may not be adopted.

(3) In the above embodiment, the tangent at any point on the outer edge t1 in the left-right direction of the lower part of the left side cover 41L, and the tangent at any point on the outer edge t2 in the left-right direction of the left weed divider 12a. The tangent lines of Good too.

( 4 ) In the above embodiment, the front end of the side cover 41 and the rear ends of the left weed divider 12a and the right weed divider 12b are spaced apart in the front-rear direction, but the front end of the side cover 41 and the left The weeding tool 12a and the rear end of the right weeding tool 12b may be arranged so close that they touch in the front-rear direction.

The present invention can be applied to a self-removal type combine harvester.

2 Reaping section 12 Weeding tool 12a, 12b Outermost weeding tool 13 Pulling device 41 Side cover 70 Recessed space (recessed part)
t1, t2 edge

Claims (6)

The front part of the machine is equipped with a reaping section that reaps the planted grain culms.
The reaping section includes a plurality of pulling devices arranged in the left-right direction, left and right side covers that cover the lateral sides of the plurality of pulling devices in the left-right direction, and grain culms to be reaped are separated into each reaping row. It is equipped with multiple weeding tools to guide you,
The lower part of the side cover and the outermost weeding implement located at least on the left among the outermost weeding implements in the left-right direction among the plurality of weeding implements are arranged so that, in front view, the lower part of the lower part An edge on the outer side in the left-right direction and an edge on the outer side in the left-right direction of the outermost weed divider are provided in a state where they intersect ,
A recessed part recessed toward the center in the left-right direction with respect to the upper part of the side cover is formed in the lower part of the side cover,
A combine harvester in which an edge on the outer side in the left-right direction of the recessed part intersects an edge on the outer side in the left-right direction of the outermost weed divider located on the left side . A grass cutting rod is provided at the left end of the reaping section to move the uncut grain culms away from the machine body, and
The combine harvester according to claim 1, wherein the weeding rod is supported so as to be switchable between a used state in which it extends outward in the left-right direction and a stored state in which it retracts toward the center in the left-right direction while entering the recessed portion. . The combine harvester according to claim 1 or 2, wherein an edge on the outer side in the left-right direction of the lower part and an edge on the outer side in the left-right direction of the outermost weed divider are smoothly and continuously connected. The outermost weeding tool is configured to be able to change the cutting width by changing its posture,
In any posture that the outermost weed divider can change, the outer edge of the lower part in the left-right direction and the outer edge of the outermost weed divider in the left-right direction are smoothly continuous. The combine harvester according to claim 1 or 2, which is in a state where the combine harvester is in a continuous state. When viewed from the front, a tangent at any point on the outer edge of the lower portion in the left-right direction and a tangent at any point on the outer edge of the outermost weed divider in the left-right direction match or substantially match. The combine harvester according to any one of claims 1 to 4 . The combine harvester according to any one of claims 1 to 5, wherein the front end of the side cover and the rear end of the outermost weed divider are spaced apart from each other in the front-rear direction.

Images