JP2022100104A - Combine-harvester - Google Patents

Abstract

To facilitate attachment/detachment work of side covers, while improving a covering function.SOLUTION: A combine-harvester includes side covers 41 for covering lateral sides of both left/right direction sides of a plurality of raise-up devices. Each side cover 41 is so configured that in a state where a first hook member 55 is locked to one receiving member 54, a second hook member 57 is locked to the other receiving member 56 so as to hold the position thereof, and the position holding state is released by unlocking the second hook member 57 from the other receiving member 56. The side cover 41 includes an inward extension part 67 extending inward a harvester body, formed at an end on the lower side thereof in the vertical direction, and a recessed part 68 recessed outward the harvester body, formed at the inward extension part 67.SELECTED DRAWING: Figure 14

Description

The present invention relates to a combine in which a cutting portion at the front portion of the machine body is provided with a plurality of raising devices arranged in the left-right direction and side covers covering the lateral sides of the plurality of raising devices on both sides in the left-right direction.

In the above combine, conventionally, narrow ribs for reinforcement are formed on the edge of the outer peripheral portion of the side cover. The side cover includes a non-movable first hook member and a movable second hook member whose posture can be switched between the locked state and the unlocked state, and is provided on the cutting section main body side. By locking the first hook member to the received receiving member and locking the second hook member to another receiving member, the side cover is removably held in a position (for example,). See Patent Document 1).

Japanese Unexamined Patent Publication No. 2011-239727

In the above-mentioned conventional configuration, since narrow ribs are formed on the edge of the side cover, it is easy to see the inside of the cutting portion through the outer peripheral portion of the side cover, and the covering function is not sufficient. Recently, from the viewpoint of improving safety, it has been requested to cover the internal structure of the cutting portion, particularly the rotating body that rotates at high speed during the cutting work so that it cannot be seen from the side of the machine.

In addition, recently, the number of cutting letters has been increasing due to the improvement of work efficiency. When the number of cutting letters is increased, there is a problem that the margin between the cutting section main body and the side cover becomes small and it becomes difficult to attach / detach the side cover, and improvement is desired in this respect as well.

Therefore, it has been desired to facilitate the work of attaching and detaching the side cover while enhancing the covering function.

The characteristic configuration of the combine according to the present invention is that a cutting section for cutting planted grain grains is provided at 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. A side cover that covers the lateral sides on both sides in the direction is provided, and a first receiving member located on the upper side in the vertical direction and a second receiving member located on the lower side of the first receiving member are provided. On the side cover, a cover main body and a non-movable first hook member supported by the cover main body and locked to one of the first receiving member and the second receiving member. A movable second that is supported by the cover body and can switch its posture between a state of being locked and a state of being unlocked with respect to the other receiving member of the first receiving member and the second receiving member. The side cover is provided with a hook member, and the position of the side cover is held by locking the second hook member to the other receiving member in a state where the first hook is locked to the one receiving member. In addition, the position holding state is released when the second hook member is released from the other receiving member, and the first hook member of the side cover is released in the vertical direction. At the end opposite to the side on which the second hook member is provided, an inward extending portion extending toward the inside of the machine is formed, and the inward extending portion is directed toward the outside of the machine. It is at the point where the recessed portion is formed.

According to the present invention, an inward extending portion is formed at the end of the side cover on the side opposite to the side where the second hook member is provided with respect to the first hook member in the vertical direction. The inside of the cutting portion becomes difficult to see from the outer peripheral side of this end portion, and the covering function can be improved.

When attaching and detaching the side cover, the second hook member is directed toward the other receiving member while the first hook member is locked to one of the first receiving member and the second receiving member. It is necessary to move it or move it away from the other receiving member. Then, the end portion of the side cover on the side opposite to the side where the second hook member is provided with respect to the first hook member moves to the side opposite to the moving direction of the second hook member.

Then, if the margin between the cutting section main body side and the side cover is small due to factors such as increasing the number of cutting letters, the inward extending portion may be used when attaching or detaching the side cover. There is a risk of interfering with the members on the cutting section body side. However, since the inward extending portion is formed with a recessed portion that is recessed toward the outside of the machine body, it is possible to avoid interfering with the member on the cutting portion main body side. As a result, the side cover can be easily attached and detached.

Therefore, it has become possible to easily attach / detach the side cover while enhancing the covering function.

In the present invention, a support portion for supporting the one receiving member is provided, and the recessed portion is formed in a portion of the side cover corresponding to the support portion in a state where the side cover is held in position. It is preferable that it is done.

According to this configuration, one receiving member is supported by the support portion. When the position of the side cover is held, the inward extending portion is in a position facing the support portion. Since the recessed portion is formed at the portion corresponding to the support portion, even if the side cover is swung in a state where the first hook member is locked to one of the receiving members in order to attach / detach the side cover. , The inward extension portion is prevented from interfering with the support portion, and the attachment / detachment work can be easily performed.

In the present invention, it is preferable that the first hook member is locked to the second receiving member and the second hook member is locked to the first receiving member.

According to this configuration, the first hook member is locked to the second receiving member located on the lower side, and the second hook member is locked to the first receiving member located on the upper side. Will be moved to perform the attachment / detachment work. As a result, the operator can move and operate the high position of the side cover, so that the operator can easily perform the work without bending down.

In the present invention, a weeding tool that guides the weeding of the grain to be cut and a front-back facing frame that extends in the front-rear direction and supports the weeding tool are provided, and the second receiving member is the front-back facing frame. A support member is provided, and the recessed portion is formed in a portion of the side cover corresponding to the support member in a state where the side cover is held in a position, and the front-rear facing frame becomes a cutting frame. On the other hand, it is preferable that the support is removable.

According to this configuration, the front-back frame that supports the weeding tool can be attached to and detached from the cutting frame. Therefore, for example, if the weeding tool or the weeding frame is damaged, the weeding frame can be removed and mowed. There is no need to replace the entire frame. Further, when the combine is transported by a container or the like, the width of the vehicle is narrowed by removing the weeding frame, which makes it easier to load the combine in the container.

In the present invention, the first hook member is provided with a locking portion that engages with the one receiving member and a side on which the second hook member is provided with respect to the locking portion in the vertical direction along the cover body. An extension portion extending to the opposite side of the cover and having a width smaller than the distance between the locking portion of the locking portion that engages with the one receiving member and the cover body in the left-right direction. It is preferable that it is provided.

According to this configuration, when the locking portion of the first hook member is locked to one of the receiving members, the work is facilitated due to the presence of the extended portion having a small width. Further, a member for supporting one of the receiving members can be arranged by utilizing the empty area formed by the extended portion having a small width.

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. A side cover that covers the lateral sides on both sides in the direction is provided, and a first receiving member located on the upper side in the vertical direction and a second receiving member located on the lower side of the first receiving member are provided. On the side cover, a cover main body and a non-movable first hook member supported by the cover main body and locked to one of the first receiving member and the second receiving member. A movable second that is supported by the cover body and can switch its posture between a state of being locked and a state of being unlocked with respect to the other receiving member of the first receiving member and the second receiving member. The side cover is provided with a hook member, and the side cover is inside and outside the machine with the locking position with respect to the first hook member as an axis in a state where the first hook member is engaged with the one receiving member. It is swingable in the direction, and an end surface is formed at the end portion of the side cover in the front-rear direction so as to intersect the direction of the axis, and the first hook of the end surface is formed in the vertical direction. The edge portion on the side where the second hook member is provided with respect to the member is formed so that the distance from the shaft core becomes shorter toward the inner side in the left-right direction when viewed along the shaft core direction. At the point.

According to this configuration, when the side cover is attached / detached, the first hook member is engaged with the first hook member in a state of being locked to one of the first receiving member and the second receiving member. The second hook member is locked to the other receiving member by swinging in and out of the machine body with the stop position as the axis.

Since the end surface is formed at the end of the side cover in the front-rear direction so as to intersect the direction of the axis, it becomes difficult to see the inside of the cutting part from the outer peripheral side of this end, and the covering function is improved. Can be made to.

Then, in order to enhance the covering function, it is necessary to make the gap between the member on the cutting portion main body side close to the edge of the side cover as narrow as possible. Therefore, the edge of the end surface on the side where the second hook member is provided with respect to the first hook member in the vertical direction is viewed along the axis direction, and the inner side portion in the left-right direction is from the axis. It is formed so that the distance between them is short. With this configuration, it is possible to prevent the edge portion of the end surface from coming into contact with the member on the cutting portion main body side when swinging around the locking position with respect to the first hook member as the axis. ..

Therefore, it has become possible to easily attach / detach the side cover while enhancing the covering function.

In the present invention, it is preferable that the first hook member is locked to the second receiving member and the second hook member is locked to the first receiving member.

According to this configuration, the first hook member is locked to the second receiving member located on the lower side, and the second hook member is locked to the first receiving member located on the upper side. Will be moved to perform the attachment / detachment work. As a result, the operator can move and operate the high position of the side cover, so that the worker can work easily without bending down.

In the present invention, a headlight device and a headlight cover that covers the headlight device are provided above the side cover, and the headlight cover is provided on the edge portion inward in the left-right direction. It is preferable that the inclined portion is provided so as to be inclined away from the lower end of the.

According to this configuration, the headlight cover covers the upper portion and the side cover covers the lower portion of the lateral sides of both sides of the raising device in the left-right direction. In order to enhance the covering function, it is provided with a small gap between the headlight cover and the side cover.

On the edge of the end surface on the side where the second hook member is provided with respect to the first hook member in the vertical direction, there is an inclined portion that inclines toward the inward side in the left-right direction away from the lower end of the headlight cover. It is formed. As a result, when the first hook member is swung in a state of being locked to one of the receiving members, there is little possibility that the end edge interferes with the lower end of the headlight cover, and the side cover can be easily attached and detached.

In the present invention, it is preferable that a horizontal surface portion having the end surface folded back in the front-rear direction is provided at a portion of the edge portion on the outer side in the left-right direction.

According to this configuration, the support strength of the edge portion can be increased by providing the horizontal surface portion, and there is little possibility that the end surface of the side cover is bent due to contact.

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 rightmost weed frame 24 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 39 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 37A 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 with the locking position with respect to the first hook member 55 as the axis 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 around the holding member 58 mounted on the cover body 37A, 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 weed 杆 38 is stably supported by the weeding frame 24a, the base end portion 38A of the weed basin 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 first hook member 55 is engaged with the lower holder 54 (second receiving member), and the second hook member 57 is the upper holder 56 (first receiving member). The member) is configured to be locked, but instead of this configuration, the first hook member 55 is locked to the upper holder 56, and the second hook member 57 is locked to the lower holder 54. It may be configured as follows.

(2) In the above embodiment, a support member 30 (support member) that supports the lower holder 54 on the weeding frame 24 is provided, and a recessed portion 68 is formed in a portion of the side cover 41 corresponding to the support member 30. However, instead of this configuration, the recessed portion 68 may be provided not only at the support column member 30 but also at a position facing another member.

(3) In the above embodiment, the headlight cover 43 is provided above the side cover 41, but instead of this configuration, a member different from the headlight cover 43 may be provided.

(4) In the above embodiment, the horizontal surface portion 66 having the end surface 63 folded back in the front-rear direction is provided at the edge of the end surface 63 of the side cover 41, but such a horizontal surface portion 66 is provided. It may be configured without.

(5) In the above embodiment, the first hook member 55 is provided with the locking portion 61 and the extending portion 62, but the first hook member 55 may not be provided with the extending portion 62.

(6) In the above embodiment, the inward extending portion 67 of the side cover 41 is configured to have a recessed portion 68 that is recessed toward the outside of the machine body, but the recessed portion 68 is not provided. It may be configured.

(7) In the above embodiment, the upper edge portion of the end surface 63 of the side cover 41 is formed so that the distance from the axis is shorter toward the inner side portion in the left-right direction. Alternatively, the shape may be such that the edge portion extends in the horizontal direction.

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

2 Cutting part 13 Raising device 24 Front-back frame 30 Support member 41 Side cover 41A Cover body 42 Headlight 43 Headlight cover 54 Second receiving member 55 First hook member 56 First receiving member 57 Second hook member 61 Locking part 62 Extension part 63 End surface 64 Inclined surface 66 Horizontal part 67 Inward extension part 68 Indented part

Claims (9)

The front part of the machine is equipped with a cutting section for cutting planted culms.
The cutting portion is provided with a plurality of raising devices arranged in the left-right direction and side covers covering the lateral sides of the plurality of raising devices on both sides in the left-right direction.
A first receiving member located on the upper side in the vertical direction and a second receiving member located on the lower side of the first receiving member are provided.
The side cover includes a cover main body, a non-movable first hook member supported by the cover main body and locked to one of the first receiving member and the second receiving member. A movable second hook that is supported by the cover body and can switch its posture between a state of being locked and a state of being unlocked with respect to the other receiving member of the first receiving member and the second receiving member. With members,
The side cover is held in position by engaging the second hook member with the other receiving member in a state where the first hook member is locked with the one receiving member, and the second hook is held. It is configured so that the position holding state is released when the member is released from the other receiving member.
Of the side covers, an inward extending portion extending toward the inside of the machine body is provided at an end portion of the side cover on the side opposite to the side where the second hook member is provided with respect to the first hook member in the vertical direction. Formed,
A combine in which a recessed portion is formed in the inwardly extending portion so as to be recessed toward the outside of the machine body. A support portion for supporting one of the receiving members is provided.
The combine according to claim 1, wherein the recessed portion is formed in a portion of the side cover corresponding to the support portion in a state where the side cover is held in a position. The combine according to claim 1 or 2, wherein the first hook member is locked to the second receiving member, and the second hook member is configured to be locked to the first receiving member. It is equipped with a weeding tool that guides the weeding of the culm to be cut, and a front-back frame that extends in the front-back direction and supports the weeding tool.
A support member for supporting the second receiving member on the front-rear frame is provided.
The recessed portion is formed in a portion of the side cover corresponding to the support member in a state where the side cover is held in a position.
The combine according to claim 3, wherein the front-rear frame is detachably supported with respect to the cutting frame. On the first hook member, a locking portion that engages with the one receiving member and a side opposite to the side where the second hook member is provided from the locking portion in the vertical direction along the cover body. A claim that extends and is provided with an extension portion configured to have a width smaller than the distance between the locking portion of the locking portion that engages with the one receiving member and the cover body in the left-right direction. The combine according to any one of Items 1 to 4. The front part of the machine is equipped with a cutting section for cutting planted culms.
The cutting portion is provided with a plurality of raising devices arranged in the left-right direction and side covers covering the lateral sides of the plurality of raising devices on both sides in the left-right direction.
A first receiving member located on the upper side in the vertical direction and a second receiving member located on the lower side of the first receiving member are provided.
The side cover includes a cover main body, a non-movable first hook member supported by the cover main body and locked to one of the first receiving member and the second receiving member. A movable second hook that is supported by the cover body and can switch its posture between a state of being locked and a state of being unlocked with respect to the other receiving member of the first receiving member and the second receiving member. With members,
The side cover can swing in and out of the machine body with the locking position with respect to the first hook member as the axis in a state where the first hook member is locked with respect to the one receiving member.
An end surface is formed at the end of the side cover in the front-rear direction so as to intersect the direction of the axis.
Of the end faces, the edge portion on the side where the second hook member is provided with respect to the first hook member in the vertical direction is closer to the inner side portion in the left-right direction when viewed along the axis direction. A combine that is formed so that the distance from the shaft core is short. The combine according to claim 6, wherein the first hook member is locked to the second receiving member, and the second hook member is locked to the first receiving member. A headlight device and a headlight cover covering the headlight device are provided above the side cover.
The combine according to claim 7, wherein the edge portion is provided with an inclined portion 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. The combine according to claim 6, wherein a horizontal surface portion having the end surface folded back in the front-rear direction is provided at a portion of the edge portion on the outer side in the left-right direction.

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