JP2022100105A - combine - Google Patents

Abstract

To provide a combine capable of performing reaping work in a state of having a less risk of crop damage in an end part of a reaping part in a lateral direction.SOLUTION: A combine comprises on a front part thereof: a plurality of lifting devices 13 which is arranged on a lateral direction; left and right covers 41 for covering lateral side parts in both sides of the plurality of lifting devices 13 in the lateral direction; and a plurality of grass dividers 12 which guides reaping object grain culm for every reaping row. In front view, a lower part of the side cover 41 and outermost grass dividers 12a, 12b provided on non-reaping sides, are provided in a manner in which an end edge of the lower part of the side cover 41 on a laterally outward side and end edges of the outermost grass dividers 12a, 12b on laterally outward side cross each other.SELECTED DRAWING: Figure 2

Description

In the present invention, the front part of the machine body is provided with a cutting section for cutting planted culms, and the cutting section covers a plurality of raising devices arranged in the left-right direction and lateral sides of the plurality of raising devices on both sides in the left-right direction. It relates to a combine provided with a side cover and a plurality of weeding tools that guide the weeding of the culm to be cut for each cutting line.

In the above combine, conventionally, the uncut side of the left and right side covers, that is, the outer edge of the left side cover is the weeding tool on the cut side among a plurality of weeding tools when viewed from the front of the machine. The position was shifted in the left-right direction with respect to the edge on the outer side of the cover, and the cover was in a state of protruding outward in the left-right direction (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2011-239727

In the above-mentioned conventional configuration, since the side cover protrudes outward in the left-right direction with respect to the uncut side weeding tool, the root of the crop distributed and guided by the uncut side weeding tool during the cutting work is There was a risk that the crop would be pushed down or torn off and damaged if it was caught in contact with the protruding part of the side cover.

Therefore, it has been requested that the cutting work can be performed at the left-right end of the cutting part in a state where there is little risk of damaging the crop.

The characteristic configuration of the combine according to the present invention is that a cutting section for cutting planted grain grains is provided in the front portion of the machine body, and the cutting section includes a plurality of raising devices arranged in the left-right direction and left and right of the plurality of raising devices. It is equipped with left and right side covers that cover the sides on both sides of the direction, and a plurality of weeding tools that guide the weeding of the grain to be cut for each cutting line. The outermost weeding tool located at least on the uncut side of the outermost weeding tool located on the outermost side in the left-right direction of the grass tool is the outermost edge of the lower part in the left-right direction in front view. , The outermost weeding tool is provided at a point where it intersects with the outer edge in the left-right direction.

According to the present invention, in the mowing operation, the crops that are distributed and guided outward in the left-right direction by the outermost weed tool come into contact with the side cover located behind the outermost weed tool. However, when viewed from the front, the left-right outer edge of the lower part of the side cover and the left-right outer edge of the outermost weeding tool intersect, so that the crop is a side cover. It is possible to guide the front part without touching it with a strong force.

Therefore, it has become possible to perform the cutting work in a state where there is little risk of crop damage at the left-right end of the cutting part.

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 tool in the left-right direction are smoothly and continuously connected.

According to this configuration, the crop can be delivered while smoothly guiding from the outermost weed tool toward the side cover.

In the present invention, the outermost weeding tool is configured so that the cutting width can be changed by changing the posture, and in any posture in which the outermost weeding tool can be changed, the lower part is laterally outward in the left-right direction. It is preferable that the edge on the side and the edge on the outer side in the left-right direction of the outermost weed tool are smoothly and continuously connected.

According to this configuration, for example, the outermost weeding tool can be changed to a position where the outermost weeding tool does not hit the crop due to a difference in the spacing between the planting rows of the crop. Then, by adjusting the outermost weeding tool to an appropriate position, it is possible to deliver the crop while guiding it as smoothly as possible.

In the present invention, in front view, the tangent line of the lower part on the outer side in the left-right direction and the tangent line on the outer edge of the outermost weed tool on the left-right direction are different from each other. It is preferable that they match or substantially match.

According to this configuration, it is possible to deliver the crop while guiding the crop from the outermost weed tool toward the side cover more smoothly.

In the present invention, the lower portion is provided with a recessed portion that is recessed inward in the left-right direction, and the edge of the recessed portion on the laterally outward side in the left-right direction and the outermost weeding tool on the laterally lateral side 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 side after the outermost weeding tool has passed, the root of the crop touches the side cover. There is less risk of the stock being 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 weeding tool are separated from each other in the front-rear direction.

According to this configuration, when either the side cover or the outermost weed tool is attached or detached independently, there is no disadvantage that the work may be difficult to perform due to mutual interference, and the work can be easily performed.

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 weeding frame at the left end. It is a top view which shows the attachment / detachment state of the rightmost weed frame. It is an exploded perspective view which shows the attachment state of the weeding tool of an end part. It is an exploded perspective view which shows the posture change state of the weeding tool at an end. It is a left side view which shows the attachment state of the left side cover. It is a side view of the left side cover. FIG. 8 is a sectional view taken along line IX-IX of FIG. FIG. 8 is a sectional view taken along line XX of FIG. It is a perspective view of the side cover on the left side. It is a vertical sectional front view which shows the support state of the left side cover. It is a left side view which shows the attachment state of the right side cover. It is a vertical sectional front view which shows the support state of the right side cover. It is a perspective view of the right side cover. It is a rear view of the rear part of the left side cover. It is a front view of the weeding tool on the left end.

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" (see FIGS. 1 and 2), the direction of the arrow "B" is the "rear side of the aircraft" (see FIGS. 1 and 2), and the arrow " The direction of "L" is "left side of the aircraft" (see FIG. 2), and the direction of the arrow "R" is "right side of the aircraft" (see FIG. 2).

〔overall structure〕
As shown in FIG. 1, the combine according to the present invention includes a traveling machine body 1 and a cutting section 2 capable of cutting 7 planted culms. The cutting portion 2 is connected to the traveling machine 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 and raised and lowered by a hydraulic cylinder 3 for raising and lowering.

The traveling machine body 1 is provided with left and right crawler traveling devices 4, and is provided with a driving unit 5 on the right side (one side in the left-right direction) of the front portion of the machine body. Behind the driving unit 5, a threshing device 6 for threshing the grain culms cut by the cutting unit 2 and a grain tank 7 for storing the grains obtained by the threshing process are arranged side by side in the machine body. It is equipped with. The driving unit 5 is covered with a cabin 8. Although not shown, the threshing device 6 handles and processes the tip side in the handling chamber while sandwiching and transporting the stock root of the harvested culm transported from the harvesting unit 2 by the threshing feed chain 9. Grains and dust are sorted by the sorting section provided at the bottom. The grains are stored in the grain tank 7, and the dust is discharged to the outside of the machine. It is provided with a grain discharging device 10 capable of discharging grains stored in the grain tank 7 to the outside, and a shredding device 11 for shredding the discharged straw after the threshing process and then discharging it to the outside of the machine. ..

Multiple (8) culms are provided in the cutting section 2 at intervals in the left-right direction and guide the weeding to introduce the planted culms of each row to the seven culm introduction routes. The tool 12, a plurality of (7) raising devices 13 that are provided in a state of being lined up in the left-right direction corresponding to each of all the grain culm introduction routes and that cause the planted culm, and the raised planting. It is provided with a varican-type cutting blade 14 as a cutting device for cutting the stock root of the grain culm, and a transport device 15 for merging the cut cut culm in the cutting width direction and transporting the cut culm to the rear.

The raising device 13 is provided in an upright posture in which the lower end side is located on the front side of the machine body and the upper end side is located on the rear side of the machine body in a backward tilted state. The pulling device 13 is an endless rotating chain spanning a drive wheel body 16, a tension wheel body 17, and a guide wheel body 18 that rotate around an axial center in the front-rear direction inside a raising case that also serves as a frame. 19 is provided, and the endless rotating chain 19 is provided with a plurality of raising claws 20 at predetermined intervals along the longitudinal direction. It is configured to raise the planted culm upward in the path in which the raising claw 20 moves upward.

The transport device 15 includes a plurality of packers 21 as scraping bodies that scrape the stock roots of the grain culms cut by the cutting blade 14 backward, and the stock roots sandwiching the stock roots of the cut grain culms and transporting them backward. The transport device 22 and the tip locking transport device 23 for locking and transporting the tip side of the harvested grain culm are provided.

Each of the plurality of weeding tools 12 is supported by the front end portion of the weeding frame 24 as a front-back frame extending in the front-rear direction. The left-handed weeding tool 12a and the right-handed weeding tool 12b as the outermost weeding tools located on the outermost side in the left-right direction of the plurality of weeding tools 12 can change the cutting width by changing the posture. It is configured.

As shown in FIG. 3, in the left weeding tool 12a and the right weeding tool 12b, the connecting portion 25 is detachably connected to the weeding frame 24 by a bolt bo. As shown in FIG. 4, the cutting width can be changed by changing the direction in the left-right direction by changing the bolt connecting portion of the connecting portion 25 with respect to the weeding frame 24.

[Grass frame]
In the 7-row combine harvester, the weeding frame 24a, which supports the left weeding tool 12a and the right weeding tool 12b, in order to keep the width of the cutting unit 2 within the width of the container when loaded in the transport container, Each of the 24b is detachably configured with respect to the cutting frame 26 that supports the entire cutting portion 2.

As shown in FIG. 5, the leftmost weeding frame 24a 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 weeding frame 24a by welding. The third mounting portion 29 is connected to the weeding frame 24a by welding via a support column member 30 made of a round pipe material.

On the fixed side of the cutting unit 2, a cylindrical horizontal frame 31 having a drive shaft (not shown), a cutting blade frame 32 supporting the cutting blade 14, and a raising device 13 connected to the cutting blade frame 32. A plate-shaped frame 33 that supports the lower portion of the blade is provided. The leftmost weed frame 24a is detachably connected to the end of the lateral frame 31 and the front and rear sides of the plate-shaped frame 33 with bolts. The sideways frame 31 and the cutting blade frame 32 correspond to the cutting frame 26.

As shown in FIG. 6, the grass frame 24b at the right end also has the end portion of the lateral frame 31 and the plate-shaped frame 33 via the first mounting portion 34, the second mounting portion 35, and the third mounting portion 36. It is detachably connected to both front and rear sides with bolts. The third mounting portion 36 is connected to the weeding frame 24a by welding via a support member 37 as a support member made of a round pipe material.

[Grass]
A weeding culm 38 is provided at the left end portion of the cutting portion 2 as one side in the left-right direction to guide the weeding so as to keep the uncut culm away from the machine body. The weed 杆 38 extends rearward from the base end portion 38A located at the lower part of the front side in a cantilever shape.

In the weed 杆 38, the base end portion 38A is supported by a fulcrum member 71 provided on the left end weeding frame 24a so as to be vertically swingable around the front-rear axis. By swinging up and down, the weed 杆 38 is supported so as to be switchable between a use state in which it projects outward in the left-right direction and a retracted state in which it retreats to the left-right center side and does not project to the outside of the machine body. Then, a manual operation type switching operation mechanism 40 for switching between the used state and the stored state by acting on the front and rear intermediate positions of the weed basin 38 is provided.

[Side cover]
As shown in FIGS. 7 and 13, the cutting unit 2 is provided with left and right side covers 41 that cover the lateral sides of the plurality of raising devices 13 in the left-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, regarding the positional relationship of the side cover 41, that is, the vertical positional relationship of the side cover 41 and the front-rear positional relationship, the cutting unit 2 is in the most lowered normal working state (FIG. 1). The explanation will be made on the assumption that it is in the state shown).

The headlight cover 43 covers the periphery of the headlight device 42 provided on the upper part of the left and right side portions of the cutting portion 2 and the upper side portion of the lateral sides of the plurality of raising devices 13 in the left-right direction. It is configured as follows.

The left and right side covers 41 are configured to cover the lower portion of the lateral sides of the plurality of raising devices 13 in the left-right direction. Since the left and right side covers 41 have a symmetrical shape on the left and right sides and have the same configuration except for a part of the configuration described later, the same configuration will be described.

As shown in FIG. 8, in the side cover 41, the front edge portion 44 is raised and extends diagonally upward along the front surface of the device 13, and the lower edge portion 45 is along the weeding frame 24 in the side view of the machine body. The front end portion 46 formed by the front side edge portion 44 and the lower side edge portion 45 is formed in a tapered shape.

Further, the side cover 41 is provided with the upper end portion 47 in a tapered shape, and is directed toward the rear side of the virtual line K1 connecting the uppermost portion 47a of the upper end portion 47 and the corner portion at the rear end portion of the lower edge portion 45. A rear bulging portion 48 is provided. The posterior bulging portion 48 is formed in a tapered shape. By providing the rear bulging portion 48 in this way, it is configured to cover the lateral side of the packer 21 located at both left and right end portions of the plurality of packers 21.

The uppermost portion 47a of the upper end portion 47 is located behind the vertical virtual line K2 extending in the vertical direction from the corner portion at the rear end portion of the lower edge portion 45. Further, in the rear edge portion extending from the uppermost portion 47a of the upper end portion 47 to the rear end portion of the lower edge portion 45, the first corner portion 49 located on the upper side and the first corner portion 49 located on the lower side in the middle of the upper and lower portions thereof. The two corners 50 are formed. The internal angle at the second corner 50 is smaller than the internal angle at the first corner 49.

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

As shown in FIGS. 1, 7 and 8, the stepped portion 53 formed between the first surface 51 and the second surface 52 is at a lower position on the front side, and is rearward so as to gradually increase toward the rear side. It is provided in an ascending inclined shape. The step portion 53 extends from the front portion to the rear portion of the side cover 41 in a state of extending parallel to the upper end edge of the side cover 41 when viewed from the side surface of the machine body.

As shown in FIG. 2, the lower part of the side cover 41 and the outermost weeding tool (left-handed weeding tool 12a and right-handed weeding tool 12b) located on the outermost side in the left-right direction are outside the lower part in the left-right direction in front view. The edge on the lateral side and the edge on the lateral side in the left-right direction of the outermost weed tool are smoothly and continuously connected.

As described above, the left weeding tool 12a and the right weeding tool 12b can change the cutting width by changing the posture, but in any of the possible postures, the lower left-right outer end. The edge and the edge on the outer side in the left-right direction of the weed tool 12 are smoothly and continuously connected. As shown in FIG. 17, the left weed tool 12a has a tangent line at an arbitrary position on the outer side edge t1 in the left-right direction of the lower portion of the side cover 41L and the outer side in the left-right direction of the left weed tool 12a. The tangent line at an arbitrary position on the side edge t2 coincides with or substantially coincides with the tangent line. In addition, both the left weeding tool 12a and the right weeding tool 12b are always viewed from the front, even if the posture is changed, with the outer edge of the lower part of the side cover 41 in the left-right direction and the weeding. The tool 12 is configured to intersect with the outer edge of the tool 12 in the left-right direction.

As shown in FIGS. 7 and 12, the side cover 41 engages with the cover main body 41A and the lower holder 54 as the second receiving member supported by the cover main body 41A and supported by the weeding frame 24. A non-movable first hook member 55 (an example of a fixture) to be stopped, and an upper holder as a first receiving member supported by the cover body 41A and supported by the raising device 13 and the support on the cutting portion side. A movable second hook member 57 that can switch the posture between the locked state and the unlocked state with respect to the 56 is provided.

The side cover 41 can swing in and out of the machine body about the locked position with respect to the first hook member 55 in a state where the first hook member 55 is locked with respect to the lower holder 54. As such, with the first hook member 55 locked to the lower holder 54, the side cover 41 is swung so that the second hook member 57 approaches the upper holder 56, and the second hook member 57 is used. Is locked to the upper holder 56 to hold the position. Further, the position holding state is released by releasing the locking of the second hook member 57 from the upper holder 56.

The second hook member 57 is swingably supported around the front-rear axis by the holding member 58 mounted on the cover body 41A, and swings to the side (upper side) locked to the upper holder 56 by a spring (not shown). It is being pushed. An operation lever 59 for manually swinging the second hook member 57 is provided.

With the first hook member 55 locked to the lower holder 54, when the second hook member 57 is swung inward to the position corresponding to the upper holder 56, the second hook member 57 becomes It swings against the urging force of the spring and automatically switches to the locked state, and the side cover 41 is in a state of holding the position. Then, the side cover 41 can be removed by swinging the operation lever 59 against the urging 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. 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.

When viewed from the side of the machine body, the alignment direction of the two second hook members 57, the upper end edge 60 of the side cover 41, and the stepped portion 53 provided in the inclined shape of the rear side extend in parallel.

As shown in FIG. 12, the first hook member 55 has a locking portion 61 that engages with the lower holder 54 and a second hook member 57 that is more than the locking portion 61 in the vertical direction along the cover body 41A. On the side opposite to the side where A configured extension portion 62 is provided.

The first hook member 55 is made of a plate-shaped member that is vertically oriented from the inner surface of the cover body 41A to the left and right center sides, and the lower holder 54 made of a round bar material enters and locks into the locking portion 61. A recess is formed. The portion of the extending portion 62 that is connected to the lower side from the locking portion 61 has a width substantially the same as the distance between the locking portion that is locked to the lower holder 54 and the cover body 41A, but is on the lower side. The width gradually narrows toward the bottom, and the narrow portion of the same width extends downward on the lower side. The plate-shaped frame 33 is located in the space formed by the narrow portion of the extended portion 62 of the first hook member 55.

In this way, the first hook member 55 raises and lowers the receiving portion with respect to the cover body 41A while avoiding interference with the plate-shaped frame 33 provided for detachably supporting the left and right end weeding frames 24a and 24b. It is configured to be long 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 has a shape in which the rod-shaped member is bent into a substantially inverted U shape. Yes, both front and rear ends are connected to the plate-shaped frame 33 by welding. The lower holder 54 corresponding to the left side cover 41L is provided at a position slightly closer to the inward side in the left-right direction with respect to the weeding 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 has a shape in which the rod-shaped member is bent into a substantially inverted U shape. The front and rear ends are connected to the upper end of the third mounting portion 36 and the rear portion of the right end of the weeding frame 24b by welding. The third mounting portion 36 is supported by the weeding frame 24b by the support column member 30. Such a support configuration corresponds to a support portion that supports one of the receiving members. Since the lower holder 54 corresponding to the right side cover 41R is supported by the weeding frame 24b, it is provided at substantially 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 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 vertical direction, that is, the upper edge portion is along the axial core direction (front-back direction). As you can see, it is formed so that the distance from the axis is shorter toward the inner side in the left-right direction.

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 range in the up-down direction. By providing the rear end surface 63 in this way, the rotating body such as the packer 21 of the cutting portion 2 is covered so as not to be seen from the rear outer side of the machine body.

The upper edge of the rear end surface 63 is provided with an inclined portion 64 that is inclined toward the inward side in the left-right direction so as to be separated from the lower end of the headlight cover 43. 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 way, when the side cover 41 is attached, there is little possibility that the upper edge portion of the side cover 41 is caught by the lower end portion of the headlight cover 43.

A folded portion 65 is formed on the upper edge portion of the side cover 41 so as to be folded 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 whose end surface is folded back in the front-rear direction in a state of being continuously connected to the folded portion 65 at a portion on the outer side in the left-right direction of the upper edge portion. ing. By providing the horizontal plane portion 66 in this way, the rear end surface 63 can be reinforced.

[Right side cover]
As shown in FIG. 15, of 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 portion. An inward extending portion 67 extending toward the inside of the machine body is formed. By providing such an inward extending portion 67, it functions as a reinforcing rib to improve the supporting strength on the lower side of the side cover 41R and prevent crops and mud from falling from the lower side. Can be done.

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

A driving unit 5 is provided on the rear side of the right side cover 41R, and the driving unit 5 is covered with a cabin 8. As shown in FIG. 13, the driver unit 5 has an upper portion 5A having a boarding space for the driver and a lower portion located on the lower side in a state of being separated from the boarding space by the floor portion 5B on which the driver rests his / her feet. Part 5C, is provided. The lower front wall portion 69 located in front of the lower portion 5B of the driving unit 5 is provided in a forward tilted posture located on the rear side of the machine body toward the lower side.

As shown in FIG. 13, the right side cover 41R extends to a height overlapping the lower front wall portion 69 in the vertical direction, and the rear end portion of the side cover 41R extends downward in a side view during cutting work. The shape follows the inclination of the side front wall portion 69.

[Left side cover]
The weed 杆 38 is configured to enter the recessed space 70 formed in the stepped portion 53 of the left side cover 41L in the retracted state, and to be entirely accommodated in the center side in the left-right direction from the outer end position of the machine body. .. The base end portion 38A swingably supported in the weed basin 38 is located inward in the left-right direction with respect to the free end portion in the weed basin 38 in the retracted state.

A fulcrum member 71 that supports the base end portion 38A of the weeding rod 38 so as to be vertically swingable is welded to the support column member 30 that supports the third mounting portion 29 on the weeding frame 24a. The swinging fulcrum of the weed basin 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 side in the left-right direction is formed at a portion of the second surface 52 of the left side cover 41L corresponding to the vicinity of the base end portion 38A. Has been done. The second recessed portion 72 is formed in a groove shape extending diagonally rearward and upward so that the base end portion 38A of the weeding rod 38 enters the inward side in the left-right direction when the weeding rod 38 is in the retracted state. ..

While the swinging fulcrum of the weeding 杆 38 is stably supported by the weeding frame 24a, the base end portion 38A of the weeding 杆 38 enters the second recess 72, so that the base end portion 38A can be made as much as possible. It is possible to prevent the fulcrum 38 from protruding laterally and outward by moving it toward the inward side in the left-right direction.

[Another Embodiment]
(1) In the above embodiment, the left and right side covers 41L and 41R each have an outer edge in the left-right direction and an outer edge in the left-right direction of each of the left weeding tool 12a and the right weeding tool 12b. Of these, at least for the left weeding tool 12a, which is the outermost weeding tool on the uncut side, the lower part of the side cover 41L is outward in the left-right direction. The edge on the side and the edge on the outer side in the left-right direction of the weeding tool 12a may be smoothly and continuously connected.

(2) In the above embodiment, the cutting width can be changed by changing the postures of the left weeding tool 12a and the right weeding tool 12b, and the left and right of the lower part of the side cover 41 can be changed in any of the possible postures. The edge on the outer side of the direction and the edge on the outer side in the left-right direction of the weeding tools 12a and 12b are smoothly and continuously connected. It may not be adopted.

(3) In the above embodiment, the tangent line of the lower left side cover 41L at an arbitrary position on the outer side edge t1 in the left-right direction and the arbitrary place on the outer side edge t2 in the left-right direction of the left weed tool 12a. Although the configuration is such that the tangents of the above coincide with or substantially coincide with each other, instead of this configuration, a configuration in which the edges are smoothly and continuously connected may be used, and the edges are simply provided so as to intersect each other. May be good.

(4) In the above embodiment, the lower portion of the side cover 41 is provided with a recessed space 70 (recessed portion) recessed inward in the left-right direction, and the recessed space 70 is provided with an edge t1 on the outer side in the left-right direction. , The left and right outer edge t2 of the outermost weed tool is shown to be in a state of being smoothly continuously connected or simply intersecting, but instead of this configuration, the side cover 41 May not be provided with the recessed space 70 (recessed portion).

(5) In the above embodiment, the front end of the side cover 41 and the rear ends of the left weed tool 12a and the right weed tool 12b are separated in the front-rear direction, but the front end and the left branch of the side cover 41 are separated from each other. It may be arranged so as to be close to the rear end of the grass tool 12a and the right branch tool 12b so as to be in contact with each other in the front-rear direction.

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

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

Claims (6)

The front part of the machine is equipped with a cutting section for cutting planted culms.
In the cutting section, a plurality of raising devices arranged in the left-right direction, left and right side covers covering the lateral sides of the plurality of raising devices in the left-right direction, and a grain culm to be cut are weeded for each cutting line. It is equipped with multiple weeding tools to guide you,
The lower part of the side cover and the outermost weeding tool located at least on the uncut side of the outermost weeding tools located on the outermost side in the left-right direction of the plurality of weeding tools are described in front view. A combine provided in a state where the lower left-right outer edge and the left-right outer edge of the outermost weed tool intersect. The combine according to claim 1, wherein the lower left-right outer edge and the left-right outer edge of the outermost weed tool are smoothly and continuously connected. The outermost weeding tool is configured so that the cutting width can be changed by changing the posture.
In any posture that the outermost weed tool can change, the left-right outer edge of the lower portion and the left-right outer edge of the outermost weed tool are smoothly continuous. The combine according to claim 2, which is in a continuous state. In front view, the tangent line of the lower part on the outer side in the left-right direction coincides with or substantially the same as the tangent line on the outer edge of the outermost weed tool in the left-right direction. The combine according to any one of claims 1 to 3. The lower part is provided with a recessed portion that is recessed inward in the left-right direction.
The combine according to any one of claims 1 to 4, wherein the left-right outer edge of the recess and the left-right outer edge of the outermost weed tool intersect. The combine according to any one of claims 1 to 5, wherein the front end of the side cover and the rear end of the outermost weeding tool are separated in the front-rear direction.

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