JPH0837893A - Mowing unit slide type combine - Google Patents

Abstract

(57) [Abstract] [Purpose] A sliding cutting combine of a cutting unit configured to slide the cutting unit so that the left and right positions can be switched and a front column of an operation unit adjacent to the cutting unit can be rotated forward. The front column is prevented from interfering with the mowing part when the front column is rotated forward, and when there is no fear of interference, the front column is sufficiently pivoted to allow the maneuvering with the combine down. [Constitution] Restriction pin 2b protruding from the front column 2
Is rotatably provided on the left side so that the regulating member 3 can be fitted in the notch 3a, and the regulating member 3 and the first transmission shaft case 13 are provided.
The restriction wire W is connected between the
When it is set, the regulating member 3 is configured to rotate to the left.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for preventing interference between a mowing part and a front column in a mowing part combine combine in which a mowing part can be switched between right and left positions and a front column of an operating part can be rotated forward. Regarding

[0002]

2. Description of the Related Art The applicant of the present application has already applied for a structure of a combine in which a reaping section can be rotated to switch the left and right positions. That is, at the edge of the ridge, the reaping section is brought as close as possible to the adjacent operation section to mow the planted grain culm on the edge of the ridge, and when performing mowing work in a part away from the edge of the field, crawler mud raising, etc. Therefore, the reaping unit is set to a position separated from the operation unit to the outside so as not to lay down the adjacent uncut culm.

[0003]

By the way, it is dangerous for an operator to operate while the operator is on the combine, such as crossing the ridge of the combine, unloading the truck, or traveling on a narrow road. It is good to get down and operate the lever. To do so, the lever position must be lowered so that it can be operated by the worker who has stepped down from the combine. Therefore, the front column is pivoted forward to lower the lever position and to rotate it. It is desirable to configure the combine so that the lever can be operated with. However, when a front column having such a structure is provided in the combine of the above-mentioned reaping section structure capable of switching the left and right positions, when the reaping section is located near the operating side,
When the front column rotates forward, the lever of the front column interferes with the reaper, resulting in damage. On the other hand, if the amount of forward rotation is restricted in order to avoid interference with the reaping section, the lever is not lowered sufficiently, and the operability becomes poor when the user is operating from the combine.

[0004]

The present invention uses the following means in order to solve the above problems. In other words, in a harvesting section slide type combine in which the reaping section can be slid to switch the position to the left and right, and the front column of the operation section adjacent to the reaping section can be rotated forward, the forward rotation amount of the front column A regulating member for regulating the cutting is provided, and an interlocking mechanism is provided between the cutting unit and the regulating member so that the regulating member is released when the cutting unit is located at a position apart from the operation unit.

[0005]

[Operation] To operate the lever with the combiner lowered, if the front column is rotated forward with the reaper located on the side away from the operating part, the entire stroke rotates, so the lever is fully lowered. And the operability is very good. On the other hand, even when the mowing unit is located closer to the operating unit side, the front column can rotate forward by a certain amount, avoid interference with the mowing unit, and can operate the lever to some extent even when the combiner is descended. In addition, the state of moving to the side opposite to the operation part
Since the main part is also in a reaping work state where the frequency is high, turning the lever forward to some extent during the reaping work makes the lever position closer to the front and makes it easier for the taller operator to operate.

[0006]

The problems and configurations to be solved by the present invention are as described above, and the embodiments of the present invention shown in the accompanying drawings will be described below. FIG. 1 is an overall side view of the mowing section slide combine, FIG. 2 is a front view of the same, FIG. 3 is a schematic front view showing a front turning mechanism of a front column which is interlocked with left and right sliding of the mowing section, and FIG. FIG. 5 is a schematic side view of FIG. 5, FIG. 5 is a schematic plan view showing the configuration of the left and right slide type mowing section B, FIG. 6 is a partial side sectional view of the mowing section B, and FIG. 7 is a slide structure of the pretreatment device by parallel link rotation. Front view, FIG. 8 is a front sectional view showing the configuration of the grain culm transporting device, FIG.
Is a front view showing the positioning structure of the pretreatment device in the cutting section B, FIG. 10 is a front view of the guide 31 in FIG. 9, a left side view and a right side view, and FIG. 11 is a side view showing the positioning structure of the pretreatment device. FIG. 12 is a schematic plan view showing the left and right slide actuators of the cutting unit, FIG. 13 is a schematic side view of the same, and FIG.
4 is a front view of a cylinder guide into which the lifting cylinder in FIGS. 12 and 13 is inserted, and FIG. 15 is a front view of another embodiment.

[0007] The overall structure of the sliding combine of the reaping section of the present invention will be described with reference to Figs. The chassis 1 is disposed on a crawler traveling device that supports the left and right crawlers 44L and 44R, the engine is mounted on the right front portion (inside the seat base 9) of the chassis 1, and in front of the chassis 1. As described above, the mission case M is arranged, and the axles of the drive wheels of the crawler traveling device 44 are suspended on the mission case M. In the upper part of the chassis 1, a sorting section D is formed on the left side in the traveling direction, a threshing section C having a handling cylinder, a feed chain 40, etc. is formed on the upper side, and a grain tank 43 is arranged on the upper side on the right side. It is installed, and the sorting section D
The paddy is stored on the fried grain conveyor 42, and a padding section for the paddy is provided below the paddy, so that the paddy on the placed paddy can store the paddy in the Glen tank 43.

The front part of the chassis 1 is shown in FIG.
As shown in FIG. 13, the front extension portion 1a is formed,
Front column 2 and step 8 and seat 1 above it
An operating section A is formed which is equipped with a seat base 9 which also serves as an engine room, in which 0 is arranged in the upper part. A steering member such as a lever 6 and a main gearshift lever 7 for traveling drive is arranged so that the front column 2 can be rotated forward. Further, even when the front column 2 is rotated forward, the front column 2 can be rotated. The respective steering members such as the levers 6 and 7 arranged in the above can be steered. Note that the worker may sometimes operate by standing on step 8 as shown in FIG. 1, while the main transmission lever 7 is set to forward by tilting forward and backward by tilting backward. In order to avoid interference with the lever, a lever guide is formed so as to tilt further to the left side than the left side surface (the cutting section B side) of the front column 2 when tilted backward, as indicated by 7'in FIG. .

A cutting unit B is supported on the left side of the operation unit A, that is, on the front side of the left side portion of the chassis 1. Mowing part B
As shown in FIG. 6, FIG. 12, or FIG. 13, the whole is supported by an elevating cylinder 36 projecting forward from the chassis 1 so as to be able to move up and down. While carrying the grain culm from the transporting device 19 and carrying it in, mowing the root portion with the cutting blade 23, further correcting the grain culm horizontally with the tip transporting device 26 and the vertical transporting device 27 which are grain culm transporting devices,
It is conveyed to the feed chain 40 of the threshing section C.

Next, the structure of each device in the cutting unit B and the sliding structure of the cutting unit will be described. The combine of the present embodiment has a double-cutting specification, and as shown in FIG. 5, three split rods 20L, 20M.
20R projecting forward, each branch rod 20L, 20M, 2
At the foremost part of the 0R, as shown in FIG.
1R is arranged, and a pair of left and right raising and conveying devices 19L and 19R are arranged in an upright state immediately after the left and right sward plates 21L and 21R. The raising / conveying devices 19L and 19R are devices that convey and drive a chain provided with tines to raise the fallen grain culm in an upright state and carry it into the cutting section B.
As shown in FIGS. 5 and 6, a cutting blade 23 is horizontally installed between the left and right sward rods 20L and 20R in the lower rear part, and a pair of left and right stars is provided directly above the cutting blade 23. The mold scraping foils 22L and 22R are provided to scrape the root of the grain culm. As described above, the so-called pretreatment devices such as the raising and conveying device 18, the scraping wheel 22, and the cutting blade 23 are integrally supported by the second transmission shaft case 16.

Immediately after the scraping foils 22L and 22R, the root portion of the grain culm is clamped and the root portion is made horizontal with respect to the tips.
As shown in FIG. 6, the vertical transport device 27 is arranged in a rearwardly inclined shape in a side view. Then, in the upper part thereof, as shown in FIG. 5, the tip conveying device 26 is arranged obliquely to the left side in a plan view toward the feed chain 40 at the left end of the threshing part C from immediately after the raising conveying device 19R, The grain culms are conveyed horizontally to the feed chain 40 of the threshing section C by the tip transporting device 26 and the vertical transporting device 27 which are these grain culm transporting devices.

The drive system of the mowing section B will be described with reference to FIGS. 6 to 8. First, since the belt is transmitted from the engine, the mowing input shaft 11 provided with the input pulley 11a at the right end.
The reaping input shaft case 12 for horizontally supporting the reamer is disposed at the rearmost portion of the reaping section B, and is rotatably supported by the supporting members 39L and 39R at the front of the chassis 1 as shown in FIG. Has been done. Then, as shown in FIG. 7, the first transmission shaft case 13 is provided so as to project forward from the middle portion of the reaping input shaft case 12 so as to be rotatable left and right. The first transmission shaft case 13
As shown in FIG. 6, a first transmission shaft 15 which is transmitted to the cutting input shaft 11 in the cutting input shaft case 12 by a bevel gear mesh via a bevel gear shaft 14 is rotatably supported in the inside thereof. Is raised, the transport device 19, the scraping foil 22, the cutting blade 2
The second transmission shaft case 16 is inserted into the second transmission shaft case 16 in the left-right direction, which also serves as a support member for the third transmission shaft 16, and is meshed with the second transmission shaft 17 supported in the second transmission shaft case 16. The lower shaft of the first transmission shaft case 13 is rotatable with respect to the second transmission shaft case 16 with respect to the second transmission shaft case 16. Further, as shown in FIGS. 5 to 7, raising and conveying transport drive shaft cases 18L and 18R are erected above the left and right ends of the second transmission shaft case 16, and the transmission shaft is rotatably supported inside the left and right sides. Each raising and conveying device 19
It is transmitted to L / 19R, the transmission shaft is provided so as to project forward from the middle portion of the second transmission shaft 17, and the scraping wheels 22L / 22R are provided.
And drive the cutting blade 23.

On the other hand, the tip conveying device 26 and the vertical conveying device 2
As shown in FIG. 8, a drive drive case 24 is disposed at the left end of the reaping input shaft case 12, and the bevel gear 11b at the right end of the reaper input shaft 11 drives the transfer drive case 24 as shown in FIG.
A bevel gear 25c attached to a transport drive shaft 25 that is axially supported therein is meshed. A tip transfer device 26 and a vertical transfer device 27 are rotatably supported on the upper and lower sides of the transfer drive case 24, respectively.
It is connected with and can be rotated left and right integrally. An ear tip conveying chain 26a having a tine 26b for nipping the tip is wound around the tip conveying apparatus 26, and a root grasping chain 27a is wound around the vertical conveying apparatus 27. A sprocket 25a or a pulley 25b is attached to the upper end or the lower end of the vertically supported conveyance drive shaft 25, and the chains 22a and 23a are wound and driven.

The sliding structure of the cutting unit B having the above-described structure will be described. As described above, the connection angle of the first transmission shaft case 13 can be changed with respect to the reaping input shaft case 12 and the second transmission shaft case 16. Even if the angle is changed, the bevel gear meshes with the reaping input shaft case. The transmission system from 11 to the second transmission shaft 17 via the first transmission shaft 15 is maintained. Therefore, so that the second transmission shaft case 16 can be slid to the left and right while it is left and right horizontal,
As shown in FIGS. 6 and 7, a sliding link 29 is connected from the reaping input shaft case 12 to the second transmission shaft case 16, and the first transmission shaft case 13 and the sliding link 29 are connected.
To form parallel links. By sliding the second transmission shaft case 16 left and right by the rotation of the parallel link,
A pretreatment device such as the raising / conveying device 19, the scraping foil 22 and the cutting blade 23 can slide between the left side position L and the right side position R as shown in FIG. 5, and correspondingly, the tip conveying device 26 and the vertical conveying device. Separately from the slide of the second transmission shaft case 16, 27 can be rotated between the left side position L and the right side position R with the transport drive shaft 25 as a rotation fulcrum shaft.

The reaping section B is thus slid and positioned by switching to two positions, the left side position L or the right side position R shown in FIG. This positioning structure will be described with reference to FIGS. 6, 7, and 9 to 11. First, when the second transmission case 16 is slid by the parallel link of the first transmission shaft case 13 and the slide link 29, two pin holes 12b and 12c for positioning from the reaper section input shaft case 12 are provided as shown in FIG. A lock plate 12a having a protrusion is provided on the lower side, and on the other hand, in the first transmission shaft case 13, a lock bracket 13a is provided so as to abut the lock plate 12a.
With a pin hole formed in the lock bracket 13a so that the rear end of the L-shaped lock pin 30 can be inserted into and removed from the pin hole, and the pin hole 12b of the lock plate 12a. Alternatively, the front portion of the lock pin 30 is fitted into the center of a cylindrical guide 31 having a stepped or inclined front surface, and the lock pin 30 can be fitted into the rear surface of the guide 31 and the lock. Between the bracket 13a and the lock pin 3
A compression spring 32 is wound around 0 to urge the lock pin 30 in the pin hole fitting direction.

As shown in FIG. 11, the lock pin 30 is bent in an L-shape in front of the guide, and the guide pin bent portion 30a is along the front surface of the guide 31, and the guide pin bent portion 3 is formed.
The lock pin 30 can be rotated with 0a as a handle. During this rotation, the front surface of the guide 31
As shown in FIG. 10, up to 1 is inclined, and when the guide pin bent portion 30a is rotated to, the guide pin 30 is pushed forward along the inclination of the front surface of the guide 31. The guide pin 30 is completely removed from the pin hole of the lock plate 12a while the front surface of the guide plate 31 remains at the guide height. That is, when the lock is released, the first transmission shaft case 13 can freely rotate, and the second transmission shaft case 16 can be slid left and right. Then, in stepwise, the guide height becomes low, that is, when the guide pin bent portion 30a is rotated in the direction, the guide pin 30 is suddenly fitted into the pin hole 12b or 12c of the lock plate 12a. The lock state can be achieved, and the guide pin bent portion 30a is positioned between and, and the mowing portion B is positioned at the left side position L (the guide pin 30 is fitted into the pin hole 12c) or the right side position R (the guide pin 30 is at the pin hole 12b). Can be fixed).

The positioning structure of the first transmission shaft case 13 is as follows.
Conventionally, the lock plate 1 extended from the reaping input shaft case 12
The lock pin attached to the first transmission shaft case 13 was pushed and pulled out with respect to 2a by pushing and pulling operation. However, since the lock pin 30 of this embodiment is made into an L shape and is performed by a turning operation, it is low. It is easy to operate with the load. Further, when the lock pin 30 is released, it opposes the compression spring 32. Therefore, if the lock pin 30 is pulled out of the pin hole all at once, the compression spring 32 may be damaged, and so on. The lock pin 30 is smoothly pulled out from the pin hole.

Further, the tip conveying device 26 and the vertical conveying device 2
As shown in FIG. 8, a lock plate 24a projecting from the transport drive case 24 has two pin holes formed therein, and a lock pin 33 projects from the connecting plate 28 so as to be fitted into the pin holes. The rotation structure of the lock pin 33 is the same as that of the lock pin 30. That is, the lock pin 33 is fitted into one of the pin holes of the lock plate 24a to position the grain culm conveying device in correspondence with the position of the pretreatment device, and when the position is changed, the lock pin 33 is removed from the pin hole. is there.

Next, the sliding operation of the second transmission shaft case 16 (the rotation operation of the first transmission shaft case 13) will be described. As means for sliding the second transmission case 16 which is slidable and positionable as described above, first, as shown in FIG.
A grip 34 for slide operation is provided on either 9L or 19R (raising drive shaft case 19L in the embodiment) or both.
Is provided, and the handle 34 is grasped by hand and manually slid. If the pull-up drive shaft case 19L on the left side is provided with the handle 34, a person who has left the combine can slide from the left side of the combine, and if the pull-up drive shaft case 19R on the right side is provided with the handle 34. The operator on the operation unit A can perform the slide operation as it is.
In this way, since it is manually slid and does not require any member for sliding operation other than the handle, it is effective for small machines in terms of weight and cost, and the operation load is not so heavy. , Slide operation is not so difficult work. The handle may be attached at a position other than the raising and conveying devices 19L and 19R, which is a part of the mowing section.

Next, with reference to FIG. 12 to FIG. 15, a structure in which an actuator for sliding the reaper is arranged will be described. First, the sliding cylinder 35 is connected to the first transmission shaft case 13 from the front extending portion 1a of the chassis 1 that forms the operating portion A on the right side of the reaping portion B. The slide cylinder 35 is driven by hydraulic pressure, electric power, or the like, and by the expansion / contraction drive thereof, the first transmission shaft case 13 that is unlocked and rotatable is rotated to the left or right,
The second transmission shaft case 16 of the reaping section B is slid left and right. The sliding cylinder 35 is configured such that the connecting portion can be vertically rotated so that the cutting portion B can be moved up and down. Further, in order to raise / lower the reaping section B (by operating the steering / rearing section raising / lowering lever 6), hydraulic and electric raising / lowering cylinders 36 are arranged from the front portion of the chassis 1 to the rear portion of the first transmission shaft case 13. Is connected to the cylinder connecting portion 13b (shown in FIG. 6), and the elevating and lowering cylinder 36 is extended / contracted to move the first transmission shaft case 13 up and down, and the cutting input shaft case 12 is rotated to cut the cutting portion. The whole B is raised and lowered. Here, in the chassis 1, a cylinder guide 37 having a guide groove 38 into which the elevating cylinder 36 is fitted is provided near the base end of the elevating cylinder 36, and the first transmission shaft case by the expansion / contraction drive of the sliding cylinder 35. It is used as a guide member when rotating 13.

The shape of the guide groove 38 of the cylinder guide 37 will be described with reference to the embodiment shown in FIG. The guide groove 38 has a substantially inverted M-shape when viewed from the front. First, the vertical portion 38 is formed at the left end and the right end of the guide groove 35.
a. 38a is formed, and in the state where the mowing part B is fixed to the left position L and the right position R, the elevating cylinder 36 passes vertically through the inside of the vertical part 38a over a height H. Therefore, the raising and lowering of the reaper B is allowed. Then, when the cutting unit B is slid, the first transmission shaft case 13 is unlocked, and then the sliding cylinder 35 is driven to expand and contract, so that the elevating cylinder 36 is moved vertically to the guide groove 38. Part 38a
Left and right sliding portion 38 connecting the lower ends of 38a
It passes through the inside of b and moves to the lower end of the vertical portion 38a on the other side. In addition, if the height of the lifting cylinder 36 remains constant during sliding, the first transmission shaft case 13
When is rotated, the front-rear distance between the base end of the elevating cylinder 36 and the cylinder mounting portion of the first transmission shaft case 13 is displaced during the rotation. For this reason, there is a risk that a back-and-forth swing of the slide cylinder 35 may occur at the connecting portion of the slide cylinder 35. The sliding portion 38b of the guide groove 38 is curved upward so as to be vertically movable. That is, in this case, the sliding of the reaper B is only driven by the slide cylinder 35, and the elevating cylinder 36 is not extended / contracted.

Next, the cylinder guide 3 shown in FIG.
The case of using 7'is described. The shape of the guide groove 38 'of the cylinder guide 37' is a substantially inverted N-shape when viewed from the front, and in the state where the mowing part B is fixed to the left side position 38'L or the right side position 38'R, In order to allow the vertical movement of the lifting cylinder 36 over the height H, the vertical portions 38'a and 38'a have the guide grooves 38.
Similarly, it is provided in the vertical direction. Then, a sliding portion 38 'for passing the lifting cylinder 36 at the time of sliding
In b, a straight line is formed from the lower end of one vertical portion 38'a to the upper end of the other vertical portion 38'a,
It is inclined when viewed from the front. That is, after the first transmission shaft case 13 is rotated by the sliding cylinder 35 at the beginning, when the elevating cylinder 36 is driven to expand and contract, the elevating cylinder 36 slides in the sliding portion 38'b. do it,
Along with that, the first transmission shaft case 12 also rotates, and the mowing part B
The sliding cylinder 35 does not have to slide the cutting section B over the entire stroke by the expansion and contraction drive of the sliding cylinder 35. Since the cutting section B is arranged in the left and right direction, it is easy to get tired and there is a problem in durability. It is possible to reduce the load at the time of driving the sliding cylinder 35.

The second transmission shaft case 16 is, as described above,
The slide operation is performed manually or by cylinder drive. In addition, the tip conveying device 26 and the vertical conveying device 27.
It is preferable to attach a handle to the connecting plate 28 or the like so that the handle can be manually rotated.

The structure of the reaping section B is as described above. Next, the rotating structure of the front column 2 in the operating section A will be described with reference to FIGS. 3 and 4. The front column 2 has a lower end of a front column frame 2a forming the front column 2 rotatably supported in the left-right direction so that the front column can be rotated forward. A steering member such as a lever arranged on the front column 2 such as the reaper section lifting lever 6 or the main transmission lever 7 can be steered. In FIG. 4, the position of the front column 2 in the normal state of the front column 2a is the X position, and when the front column 2 is rotated forward by the full stroke, it becomes the Z position.

In the vicinity of the left side of the front column frame 2a, as shown in FIGS. 3 and 4, a restricting member rotating shaft 4 is arranged in the front-rear direction on the left side of the chassis 1, and the restricting member rotating shaft 4 is used as a fulcrum. The regulating member 3 is arranged so as to be parallel to the left side surface of the front column frame 2 and rotatable leftward. Further, when the regulating member 3 is parallel to the left side surface of the front column frame 2, the front column 2 is pivoted forward to pivot the front column frame 2a to the Y position shown in FIG. Restriction pin 2b protruding leftward from the front column frame 2a
Is configured to fit into a notch 3a formed at the upper rear portion of the regulation member 3, and when the regulation member 3 is rotated to the left, the regulation pin 2b does not fit into the notch 3a. The front column 2a can be rotated to the Z position. Further, the regulating member 3 is pulled toward the front column 2 by a tension spring 5 so as to return to a state in which it is parallel to the left side surface of the front column 2.

On the other hand, as shown in FIG. 3, an outer receiver 12a is projectingly provided on the reaping input shaft case 12, the outer wire of the regulating wire W is fixed, and the inner wire end is pivotally connected to the first transmission shaft case 13. The regulating wire W is extended to the right side of the first transmission shaft case 13 and is wound from the lower right side of the front column 2 and then the other end of the inner wire is pivotally supported on the lower end of the regulating member 3. . As a result, when the reaper B is at the left side position L and the first transmission shaft case 13 is located on the left side, the regulation wire W of the regulation member 3 is pulled toward the first transmission shaft case 13 side. Therefore, the lower end of the regulating member 3 is pulled to the right side, the regulating member 3 rotates to the left side, and the regulating pin 2b does not fit into the cutout portion 3a. Therefore, the front column frame 2a is positioned at the Z position. The front column 2 can be rotated forward by the entire stroke. When the reaper B is at the right side position R and the first transmission shaft case 13 is located on the right side, the regulation wire W
Pushes the lower end of the regulation member 3 to the left side, whereby the regulation member 3 becomes parallel to the left side surface of the front column 2, so that when the front column 2 is rotated forward, the notch portion of the regulation pin 2b. The front column 2 is rotated only to the position where the front column frame 2a is in the Y position by being fitted into 3a.

As described above, when the reaper B is at the left side position L, the front column 2 is rotated forward by the entire stroke to fully lower the operating members such as the levers on the front column to cross the ridge. Operations such as loading and unloading on trucks and trucks can be performed by operating the combine while it is down. On the other hand, when the cutting unit B is in the right side position R, the front column 2 is rotated forward by a certain amount, and a lever protruding from the cutting unit B and the front column 2 (in particular, FIG.
As described above, the main gear shift lever 7 tilts to the left when the vehicle is in the reverse position.) It is possible to avoid a situation in which the main gear shift lever 7 tilts to the left side. It is also possible to operate to a certain extent. Also, when a tall person (especially standing) is riding on the operating portion A of the combine, the levers are moved by utilizing a certain amount of forward rotation with the front column frame 2a at the Y position. It can be tilted slightly forward, making it easier for people with long hands to operate.

[0028]

Since the present invention is constructed as described above,
The following effects are obtained. That is, in the combine in which the mowing unit is switchable between the left and right positions and the front column adjacent to the mowing unit can be rotated forward, the mowing unit is located on the side distant from the operating unit by the construction as claimed. At this time, the front column can be rotated forward by the full stroke and the levers attached to the front column can be laid down to a sufficiently low level, and the combine column can be used for crossing ridges, unloading trucks, or traveling on narrow roads. You can easily operate the lever after getting off. On the other hand, when the mowing unit is located near the front column, the front rotation of the front column is limited to a certain amount to avoid the interference between the levers attached to the front column and the mowing unit. Since it can be rotated forward to some extent, it is possible to operate the lever after getting off the combine.Furthermore, by rotating the front column forward to this position while riding on the combine, for tall workers, Since the levers are slightly closer to the front, it is easy to operate even with a long arm, and there is an effect that the steering becomes easy.

[Brief description of drawings]

FIG. 1 is an overall side view of a mowing section slide combine.

FIG. 2 is a front view of the same.

FIG. 3 is a schematic front view showing a front turning mechanism of a front column which is interlocked with a right and left slide of a reaper.

FIG. 4 is a schematic side view of the front column portion.

FIG. 5 is a schematic plan view showing a configuration of a right and left slide type mowing section B.

FIG. 6 is a partial side sectional view of a reaping unit B.

FIG. 7 is a front view showing a slide structure of a pretreatment device by rotating a parallel link.

FIG. 8 is a front cross-sectional view showing the configuration of a grain culm transporting device.

FIG. 9 is a front view showing the positioning structure of the pretreatment device in the cutting unit B.

FIG. 10 is a front view, a left side view and a right side view of a guide 31 in FIG.

FIG. 11 is a side view showing a positioning structure of the pretreatment device.

FIG. 12 is a schematic plan view showing the left and right slide actuators of the mowing section.

FIG. 13 is a schematic side view of the same.

FIG. 14 is a front view of a cylinder guide into which the lifting cylinder in FIGS.

FIG. 15 is a front view of another embodiment of the present invention.

[Explanation of symbols]

 A Operation part B Cutting part W Restriction wire 1 Chassis 1a Front extension part 2 Front column 2a Front column frame 2b Restriction pin 3 Restriction member 3a Cutout part 4 Restriction member rotating shaft 5 Pulling spring 12 Cutting input shaft case 12a Outer support 13 First transmission shaft case 29 Slide link

Claims (1)

[Claims] 1. A sliding unit for a harvesting part, wherein the cutting unit is slidable so that the position can be switched to the left and right, and a front column of an operation unit adjacent to the harvesting unit is rotatable forward. Mowing characterized by providing a regulating member for regulating the amount of forward rotation, and providing an interlocking mechanism between the mowing portion and the regulating member so as to release the regulating member when the mowing portion is apart from the operating portion. Part slide combine.