JP2022100103A - combine - Google Patents

Abstract

To provide a combine capable of preferably performing reaping work of crops without accumulation of crops on a lateral side part of a reaping part.SOLUTION: A reaping part 2 of a machine body front part comprises: a plurality of lifting devices 13 which is arranged in a lateral direction in an inclined posture in which a rear part is raised; a plurality of grass dividers 12 which divides and guides planting grain culm being a reaping object; a grass dividing frame 24 extending in a cross direction and supporting the grass dividers 12 at a tip part; and left and right side covers 41 which cover a lateral side of one of both sides of the plurality of lifting devices 13 in the lateral direction. The side cover 41 is configured so that with a front edge part 44 of the side cover 41 extending upward obliquely along a front face of the lifting device 13, and a lower edge part 45 of the side cover 41 extending along the grass dividing frame 24 in side view, a front end part 46 formed of the front edge part 44 and the lower edge part 45 is formed into a tapered shape.SELECTED DRAWING: Figure 7

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. Regarding the side cover and the combine that is equipped with.

In the above combine, conventionally, the lower edge portion of the side cover is provided in a rear-down shape so that the front end portion is at a high position and the lower edge portion is positioned downward from the front end portion to the rear side, and the front side edge portion and the lower portion are provided. The front end portion formed by the side edge portion was configured to have a wide angle (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2011-239727

In the conventional configuration, a wide gap is formed between the lower edge portion of the side cover and the weeding frame that supports the weeding tool located at the left-right end portion. Then, the crops that have been raised and then sorted and guided by the weeds, or the straw scraps that have accumulated around the roots of the crops, may enter the above-mentioned gaps and be caught and accumulated. There was a risk that crop cutting work could not be performed well due to the influence of objects.

Therefore, there has been a demand for good crop cutting work without the accumulation of crops on the lateral side of the cutting section.

The characteristic configuration of the combine according to the present invention is that a cutting section for cutting planted culms is provided in the front part of the machine body, and the cutting section is provided with a plurality of raising devices arranged in a backward tilted posture and in the left-right direction, and a cutting target. A plurality of weeding tools that guide the weeding of the planted culm, a weeding frame that extends in the anteroposterior direction and supports the weeding tool at the tip, and lateral sides of the plurality of raising devices in the left-right direction. The left and right side covers are provided, and the side cover is such that the front side edge portion of the side cover extends diagonally upward along the front surface of the raising device and the side cover is provided. The point is that the front end portion formed by the front side edge portion and the lower edge portion is formed in a tapered shape with the lower edge portion extending along the weeding frame.

According to the present invention, since the lower edge portion of the side cover extends along the weeding frame and the front end portion is formed in a tapered shape, the lower edge portion of the side cover and the weeding frame There is less risk of crops, straw scraps, etc. getting into the gaps between them.

As a result, it has become possible to perform good crop cutting work without depositing crops on the lateral side of the cutting section.

In the present invention, the side cover is provided with a tapered upper end portion of the side cover, rather than a virtual line connecting the uppermost portion of the upper end portion and the corner portion at the rear end portion of the lower edge portion. It is preferable that a rear bulging portion is provided so as to project toward the rear side.

According to this configuration, by providing the rear bulging portion, it is possible to widely cover the lateral outer side of the rotating body for transportation in the grain culm transporting device provided in the cutting portion, and the rotating body is exposed to the outside. It becomes easy to prevent soil, straw debris, etc. from scattering to the outside.

In the present invention, it is preferable that the posterior bulging portion is formed in a tapered shape.

According to this configuration, it is possible to efficiently cover a rotating body or the like that extends linearly in a side view of the transport device.

In the present invention, it is preferable that the uppermost portion of the upper end portion is located behind the vertical virtual line extending in the vertical direction from the corner portion at the rear end portion of the lower edge portion.

According to this configuration, the upper end portion can guide the crop to a higher position even at a position posterior to the rear end portion of the lower edge portion, and the tip side portion of the crop enters the aircraft body side. It is easy to avoid.

In the present invention, the first corner portion located on the upper side and the first corner portion located on the lower side are located on the rear side edge portion extending from the uppermost portion of the upper end portion to the rear end portion of the lower edge portion. It is preferable that the second corner portion is formed and the internal angle at the second corner portion is smaller than the internal angle at the first corner portion.

According to this configuration, it is possible to increase the amount of overhanging to the upper side while reducing the amount of overhanging to the rear side, so that it is easy to cope with tall crops.

In the present invention, the cutting section is configured to swing up and down so as to be able to move up and down, a driving section is provided behind the cutting section, and the driving section has a boarding space for a driver to board. An upper portion and a lower portion located on the lower side in a state of being separated from the boarding space by a floor portion on which the driver puts his / her feet are provided, and a lower side located in front of the lower portion of the driver portion. The front wall portion is in a forward tilted posture in which the lower side is located on the rear side of the machine body, and the side cover is extended to the upper side from the lower end of the lower front wall portion, and the rear end portion of the side cover portion. Is preferably formed so as to have a shape along the inclination of the lower front wall portion in a side view when the cutting portion is in the most lowered state.

According to this configuration, when the cutting portion is in the most lowered state, the rear end portion of the side cover has a shape that follows the inclination of the lower front wall portion in the side view, so that it interferes with the lower front wall portion. The side cover can be brought as close to the driver as possible with little risk of interference.

In the present invention, the cutting unit is provided with a cutting device for cutting and cutting the stock of the culm caused by the raising device, and a scraping body for scraping the stock of the cut culm to the rear of the machine. , And the lower part of the side cover preferably covers the lateral side of the scraping body.

According to this configuration, the side cover can cover the side surface of the scraped body, and it is possible to prevent soil, straw debris, etc. from scattering to the outside.

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", the direction of the arrow "B" is the "rear side of the aircraft" (see FIG. 1), and the direction of the arrow "L" is the "left side of the aircraft". The direction of the arrow "R" is "the 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 side cover 41 is configured such that the upper end portion 47 is provided in a tapered shape and the tapered rear bulging portion 48 is provided, but instead of this configuration, the upper end portion is provided. The 47 does not have to be tapered, and may be provided in a curved shape, for example. Further, the rear bulging portion 48 does not have to be tapered, and may be provided in a curved shape, for example.

(2) In the above embodiment, the first corner portion 49 and the second corner portion 50 are formed on the rear side edge portion of the side cover 41, and the internal angle of the second corner portion 50 is the first corner portion. Although it is shown to be smaller than the internal angle in 49, instead of this configuration, the first corner 49 and the second corner 50 may have the same internal angle, and the internal angle in the second corner 50 is the first. It may be configured to be larger than the internal angle at the corner portion 49 of. Further, such a first corner portion 49 or a second corner portion 50 may not be formed.

(3) In the above embodiment, the rear end portion of the upper portion of the side cover 41 is shaped to follow the inclination of the front wall portion 69 of the driving portion 5, but instead of this configuration, the upper portion of the side cover 41 is formed. The rear end portion may be provided in a shape different from that of the front wall portion 69.

(4) In the above embodiment, the side cover 41 is configured to cover the side surface of the packer 21, but the packer 21 may not be covered.

The present invention can be applied to a combine harvester.

2 Cutting part 5 Driving part 12 Weeding tool 13 Raising device 14 Cutting device (cutting blade)
21 Scraping body
24 Weeding frame 41 Side cover 44 Front edge 45 Lower edge 46 Front end 47 Top end 47a Top point 48 Posterior bulge 49 First corner 50 Second corner 69 Front wall

Claims (7)

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 a backward tilted posture and in the left-right direction, a plurality of weeding tools for weeding and guiding the planted culm to be cut, and the above-mentioned extending in the front-back direction and at the tip portion. A weeding frame that supports the weeding tool and left and right side covers that cover the lateral sides of the plurality of raising devices in the left-right direction are provided.
In the side cover, the front side edge of the side cover extends diagonally upward along the front surface of the raising device, and the lower edge of the side cover extends along the weed frame. A combine in which the front end portion formed by the front side edge portion and the lower side edge portion is formed in a tapered shape in an extended state. The side cover is provided with the upper end portion of the side cover tapered, and is directed toward the rear side of the virtual line connecting the uppermost portion of the upper end portion and the corner portion at the rear end portion of the lower edge portion. The combine according to claim 1, wherein the overhanging rear bulge is provided. The combine according to claim 2, wherein the posterior bulging portion is formed in a tapered shape. The combine according to claim 2 or 3, wherein the uppermost portion of the upper end portion is located behind the vertical virtual line extending in the vertical direction from the corner portion at the rear end portion of the lower edge portion. In the rear edge portion extending from the uppermost portion of the upper end portion to the rear end portion of the lower edge portion, a first corner portion located on the upper side and a second corner portion located on the lower side in the middle of the upper and lower portions thereof. And are formed,
The combine according to any one of claims 2 to 4, wherein the internal angle at the second corner is smaller than the internal angle at the first corner. A driving unit is provided behind the cutting unit, and a driving unit is provided.
The front wall portion located at the lower part of the front surface of the driving unit is in a forward leaning posture located at the rear side of the aircraft toward the lower side.
The side cover extends in the vertical direction to a height overlapping the front wall portion.
The combine according to any one of claims 1 to 5, wherein the rear end portion of the upper portion of the side cover has a shape along the inclination of the front wall portion in a side view during cutting work. The cutting unit is provided with a cutting device for cutting and cutting the stock of the culm caused by the raising device, and a scraping body for scraping the stock of the cut culm to the rear of the machine.
The combine according to any one of claims 1 to 6, wherein the lower portion of the side cover covers the lateral side of the scraping body.

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