JP2009000048A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combine harvester which can operate a travel transmission with an artificially operable transmission operation tool and can simultaneously easily perform operations in the first operation state and operations in the second operation state at suitable operation travel speeds. <P>SOLUTION: This combine harvester has a reaping portion having a reaping treatment width for reaping grain straws planted in a plurality of planting rows, an artificially operable transmission operation device 51 for operating the travel transmission, and recognition means 61. The recognition means 61 makes an operator to recognize whether the operation state of the travel transmission is an operation state for causing an operation travel speed of the first operation state for guiding grain straws planted in less planting rows than a plurality of the planting rows, or an operation state for causing an operation travel speed of the second operation state for guiding grain straws planted in a plurality of the planting rows. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a combine equipped with a cutting part having a cutting width for cutting a plurality of planted culms and a manipulatable shift operating tool for shifting a traveling transmission.

A first operation state in which a cutting portion having a cutting width for cutting the planted culm of a plurality of planting strips is cut, and the planted culm having a smaller number of planting strips than the plurality of planting strips is introduced into the harvesting unit. Conventionally, for example, what was described in Patent Document 1 is a combine that can perform the operation in the second operation state in which the operation in the second operation state in which the planted culm of the plurality of planting ridges is introduced into the harvesting unit there were.
The combine described in Patent Document 1 includes a pretreatment unit (corresponding to a mowing unit) in which three weed tools are arranged in the horizontal direction. The pre-processing unit is supported so as to be capable of lateral sliding operation at a turning and cutting work position located on the opposite side of the traveling machine body from the driving part side and a mid-split work position approaching the driving part side of the traveling machine body.
When the pre-processing unit is slid to the cutting operation position, the pre-processing unit works while introducing one planted grain culm between one weeding tool and the other weeding tool. That is, it will be in the work state (equivalent to a 1st work state) which introduces the planting cereal of two planting strips to a pre-processing part.
On the other hand, when the pre-processing unit is slid to the middle splitting position, one planting grain culm between one weeding tool and two planting grain planting between the other weeding tools. Work while introducing each kite. That is, it will be in the operation state (equivalent to a 2nd operation state) which introduces the planted cereal of three planting strips to a pre-processing part.

JP-A-10-210847 (paragraphs [0023], [0032], FIGS. 7 and 8)

When working in the first work state described above, the work travel speed is adjusted fast, and when working in the second work state, when the work travel speed is slow adjusted, the work in the first work state is also second. Work in the working state can also be advantageously performed.
In other words, when the work in the first work state and the work in the second work state are performed at the same work traveling speed, the cereal supply amount per unit time of the threshing device at the time of work in the second work state is For example, the engine load in the second work state becomes larger than the engine load in the first work state due to an increase in the supply amount of the cereal meal during the work in the first work state. Thereby, the work travel speed in the first work state is adjusted so as to be faster than the work speed in the second work state and the engine load is not excessive, and the work travel speed in the second work state is If the engine speed is adjusted so that it is slower than the work speed in the first work state and the engine load is not too low, the engine output is used appropriately and effectively in both the work in the first work state and the work in the second work state. Can be done.

Conventionally, there is a combine equipped with a shift operation tool that can be manually operated so as to manually shift the travel transmission, but this type of combine makes it difficult to appropriately and effectively use the engine output. It was.
That is, it is difficult to recognize whether or not the shift state of the traveling transmission device that has been changed by operating the shift operation tool is a shift state in which the work travel speed of the first work state or the second work state appears. It has become difficult to shift the travel transmission device to an appropriate shift state in which the work travel speed in the first work state or the second work state appears.

  An object of the present invention is to perform a shift operation of a travel transmission device with a manually-operable shift operation tool, while performing work in a first work state and work in a second work state at an appropriate work travel speed. It is to provide an easy combine.

This 1st invention is in the combine provided with the cutting part which has the cutting processing width which cuts and sets the planted culm of a plurality of planting ridges, and the manipulatable transmission operation tool which carries out gear shifting operation of the traveling gearbox ,
Whether the speed change state of the traveling transmission device is a speed change state in which the working speed of the first work state in which the planted cereals having a smaller number of planting strips than the plurality of planting strips are introduced into the harvesting portion appears. Or a recognition means for recognizing the operator whether or not the speed change state in which the work traveling speed of the second work state is introduced, where the planted culms of the plurality of planting ridges are introduced into the harvesting unit.

  According to the configuration of the first aspect of the present invention, the shift state of the travel transmission device in which the shift state of the travel transmission device exhibits the work travel speed in the first work state in accordance with the shift operation of the travel transmission device by manual operation of the shift operation tool, If the speed change state in which the work traveling speed in the second work state appears, it can be recognized by the recognition means. As a result, when the work in the first work state or the second work state is performed, the travel transmission device is shifted to an appropriate speed change state to ensure the work travel speed in the first work state or the second work state. Can appear.

  Therefore, even though the speed change operation for the travel transmission is manually performed, an appropriate work travel speed can be obtained when performing the work in the first work state and the work in the second work state. Therefore, the engine output can be used appropriately and effectively.

  The second invention includes a second work index indicating an operation range in which the travel transmission device of the shift operation tool is operated to a shift state for the second work state, and the travel transmission device of the shift operation tool. And a work index indicating an operation range for operating the gear in a shift state for work travel.

  According to the configuration of the second aspect of the invention, knowing that the speed change operation tool is located in the operation range indicated by the second work index, the speed change state of the travel transmission device reveals the work travel speed in the second work state. It is possible to recognize that the speed change state has been reached, and by knowing that the speed change operation tool is located in the operation range that is out of the operation range indicated by the second work index among the operation areas indicated by the work index, It can be recognized that the transmission device has entered a shift state in which the work travel speed in the first work state appears.

  Therefore, while the speed change gear is manually operated, the first work state is such that work in the first work state and work in the second work state can be performed appropriately and effectively using the engine output. In addition, it is possible to obtain a combine that can surely display a work traveling speed suitable for the second work state at a low cost only by including a simple recognition means having the second work index and the work index.

  The third aspect of the present invention includes an operation range in which the travel transmission device of the shift operation tool is operated to a shift state for the first work state, and the travel transmission device of the shift operation tool is in the second work state. The recognizing means is configured by shifting the operating range for shifting to the shifting state in a direction different from the moving direction of shifting the travel transmission of the shifting operation tool.

  According to the configuration of the third aspect of the present invention, when the shift operating tool is operated in the operating range in which the travel transmission device enters the shift state in which the work travel speed in the first work state is displayed, the shift operation tool is operated in the travel transmission device. Is operated in an operation range that causes a shift state in which the work travel speed in the second work state appears, the shift operation tool is displaced in a direction different from the moving direction for shifting the travel transmission device. Thus, it can be recognized that the traveling transmission device has entered a shift state in which the first work travel speed is exhibited or a shift state in which the second work travel speed is present.

  Therefore, while the speed change gear is manually operated, the first work state is such that work in the first work state and work in the second work state can be performed appropriately and effectively using the engine output. In addition, it is possible to obtain a combine that can surely display a work traveling speed suitable for the second work state at a low cost only by including a simple recognition means in which the operation area is displaced.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a left side view of an entire combine according to an embodiment of the present invention. FIG. 2 is an overall plan view of the combine according to the embodiment of the present invention. FIG. 3 is a front view of the combine according to the embodiment of the present invention. FIG. 4 is a right side view of the entire combine according to the embodiment of the present invention. As shown in these drawings, a combine according to an embodiment of the present invention is connected to a traveling machine body that is self-propelled by a pair of left and right crawler type traveling devices 1 and 1 and a front part of an aircraft frame 2 of the traveling machine body. And a threshing device 3 and a grain tank 4 arranged side by side in the lateral direction of the traveling machine on the rear side of the machine frame 2. This combine harvests rice, wheat and the like.

  That is, the traveling machine body includes the pair of left and right traveling devices 1, 1, and also includes a driving unit 6 equipped with a driving seat 5 positioned in front of the grain tank 4, and is provided below the driving seat 5. The engine 7 (see FIG. 5) is equipped with a prime mover.

  The mowing unit 10 includes a mowing unit frame 15 having a main frame 15 a that is supported at the front of the machine body frame 2 so as to be swingable up and down on the lateral side of the operating unit 6. In addition to the main frame 15a, the mowing unit frame 15 includes three weeding frames 15b that are connected to the front end of the main frame 15a side by side in the lateral direction of the traveling machine body. The cutting unit 10 is configured such that the cutting unit frame 15 swings up and down with respect to the machine frame 2 by a hydraulic cylinder 16 connected to the main frame 15 a and the machine frame 2. The weeding tool 11 provided at the front end of 15b is moved up and down into a descending working state in which the weeding tool 11 is lowered near the ground, and an ascending non-working state in which the weeding tool 11 is raised from the ground.

  When the cutting unit 10 is in the descending work state and the traveling machine body is traveled, the cutting unit 10 divides the planted cereal into a target to be cut and a non-cutting target by the weeding tool 11, and from each weeding tool 11. The planted culm to be cut is introduced into the corresponding one of the left and right pull-up paths, and is raised and processed by the pull-up device 12 located on the lateral side of the pull-up path. Cutting is performed by one clipper-shaped cutting device 13, and the harvested cereal mash is conveyed backward by the supply device 14 and supplied to the threshing feed chain 3 a of the threshing device 3.

  As shown in FIG. 3, the cutting unit 10 includes, as the cutting processing width W, the distance between the tips of the weeding tools 11 located at both ends in the lateral direction of the traveling machine body among the three weeding tools 11. . Of the three weeding tools 11, the distance between the tips of the weeding tool 11 closest to the driving unit 6 and the weeding tool 11 located in the center is the farthest from the driving unit 6 and the center of the weeding tool 11 farthest from the driving unit 6. It is larger than the distance between the tips of the weeding tool 11 located in the position. The cutting width W is substantially equal to the entire width of the traveling machine body. The mowing unit 10 is connected to the machine body frame 2 in a state where a work site having the mowing processing width W is located immediately before the traveling machine body. In other words, the cutting unit 10 enables a rotary cutting operation, a middle cutting operation, and a surrounding cutting operation.

  FIG. 10 (a) is a plan view of the cutting unit 10 in the rotary mowing work state as the first work state. The cutting operation is performed in a state where the already cut ground is located on the side of the traveling machine body on the side of the driving unit and the uncut area is located on the side of the traveling machine body opposite to the driving unit side. As shown in this figure, in the cutting operation, the planted cereal a of one planting line is divided between the weeding tools on the side (operating unit side) where the distance between the weeding tools 10 is large. Work is carried out while introducing the planted culm a of one planting line between the weeds on the side where the distance between the tools is small (opposite to the operation part side). The so-called two-row mowing work.

  FIG. 10B is a plan view of the cutting unit 10 in the middle cutting operation and the surrounding cutting operation as the second operation state. The middle cutting work is performed in a state where uncut ground is located on both sides of the traveling machine body. The surrounding mowing work is performed while traveling along the heel with the heel positioned on one side of the traveling machine body. As shown in this figure, in the middle cutting operation and the surrounding cutting operation, the cutting unit 10 sets the planted culm a with two planting strips between the weeding tools on the side where the distance between the weeding tools is large. Work is performed while introducing the planted cereals a of one planting line between the weeding tools on the side where the distance between the weeding tools is small. Do the so-called Sanjo mowing.

  The threshing device 3 supplies the tip side to the handling room (not shown) while squeezing and conveying the stock side of the harvested cereal rice cake in the rear direction of the machine body by the threshing feed chain 3a, and performs the threshing process. The grain tank 4 is supplied with threshing grains from the threshing device 3 and stores them.

  FIG. 5 is a side view of the transmission structure for running and mowing. As shown in this figure, the transmission structure includes a traveling mission case 20 provided at the front portion of the body frame 2, and an input shaft 21 provided sideways on the self-propelled body is provided on the traveling mission case 20. Corresponding to the ends of a pair of left and right traveling output shafts 23, 23 that are linked to the output shaft 7a of the engine 7 via the transmission belt 22 and are provided in the lower part of the traveling mission case 20 in a lateral direction. The crawler driving wheel 1a of the traveling device 1 on the side is provided so as to be integrally rotatable, and a cutting output shaft 24 provided sideways on the self-propelled machine body is provided on the upper part of the traveling mission case 20 via the transmission belt 25. Are linked to the input shaft 17.

  The transmission belt 22 constitutes a traveling belt tension clutch. The input shaft 17 of the reaping portion 10 is rotatably supported by a base portion 15c that is rotatably connected to the body frame 2 of the main frame 15a.

  FIG. 6 is a longitudinal front view of the traveling mission case 20. As shown in the figure, the traveling mission case 20 includes the input shaft 21, the pair of left and right traveling output shafts 23, 23, and the cutting output shaft 24, and also uses the input shaft 21 as a traveling transmission. The input shaft 21 is linked to the cutting output shaft 24 by a travel transmission mechanism 30 that is linked to the pair of left and right travel output shafts 23 and 23 by a gear 31 and a transmission gear 41 that is provided so as to be integrally rotatable with the input shaft 21. And a mowing transmission mechanism 40 to be operated.

  As shown in FIG. 6, the traveling transmission mechanism 30 includes the traveling transmission device 31, a transmission gear 33 that meshes with a gear portion of the output shaft 32 of the traveling speed device 31, and the transmission gear 33. A transmission gear 35 provided rotatably on the rotation support shaft 34, a transmission gear 36 meshed with the transmission gear 35, a transmission shaft 37 connected to the transmission gear 36 so as to be integrally rotatable, and the transmission shaft 37 A pair of left and right meshing steering clutches 38, 38 provided separately at both ends of the left steering gear 38 and an output gear 38a of the left steering clutch 38 are engaged with the left traveling output shaft 23 so as to be integrally rotatable. A transmission gear 39 provided, and a transmission gear 39 provided so as to be integrally rotatable with the right traveling output shaft 23 in a state of meshing with the output gear 38a of the right steering clutch 38 are provided.

  The travel transmission 31 is driven by a variable displacement, axial plunger type hydraulic pump 31a having the input shaft 21 as a pump shaft, and pressure oil from the hydraulic pump 31a, and the output shaft 32 is driven by a motor. An axial plunger type hydraulic motor 31b provided as a shaft is provided. In other words, the traveling transmission 31 converts the driving force of the input shaft 21 into the driving force on the forward side and the backward side by changing the swash plate angle of the hydraulic pump 31a, and also moves backward on the forward side. On the side, a hydrostatic continuously variable transmission is provided so as to change continuously and output from the output shaft 32.

  The mowing transmission mechanism 40 includes the transmission gear 41, a transmission gear 42 meshed with the transmission gear 41, a transmission gear 44 provided so as to be integrally rotatable on a rotation support shaft 43 of the transmission gear 42, and the transmission A transmission gear 45 is provided so as to rotate integrally with the cutting output shaft 24 while being engaged with the gear 44.

  The traveling mission case 20 includes a pair of left and right steering brakes B, B that are arranged at both ends of the transmission shaft 37. Each of the steering brakes B includes a plurality of brake plates engaged with the output gear 38a of the steering clutch 38 so as to be integrally rotatable, and a plurality of friction plates locked to the traveling mission case 20. It is a multi-plate friction brake.

  FIG. 7 is a front view of the traveling operation device. FIG. 8 is a side view of the travel operation device. As shown in these drawings, the travel operation device includes an operation panel 50 provided in the driving unit 6 on the side of the driver seat 5, and a lever-type speed change operation inserted through the operation panel 50. The tool 51 is provided.

The speed change operation tool 51 is supported on the support frame 52 via the operation tool support 53 below the operation panel 50. The support frame 52 is fixed to the body frame 2. The transmission operation tool 51 and the operation tool support 53 are connected via a connection pin 54, and the operation tool support 53 and the support frame 52 are connected via a support shaft 55.
That is, the speed change operation tool 51 swings in the lateral direction of the machine body along the guide groove 56 (see FIG. 9) provided in the operation panel 50 around the axis of the connecting pin 54, and around the machine body lateral axis of the support shaft 55. It swings along the guide groove 56 in the longitudinal direction of the machine body.

  The operation tool support 53 is interlocked with the speed change operation portion 31 c of the travel transmission device 31 via an interlocking rod 57 having one end connected to the output portion of the operation tool support 53. That is, the speed change operation tool 51 is interlocked with the speed change operation part 31 a of the travel transmission 31 via the operation tool support 53 and the interlocking rod 57.

  FIG. 9 is a plan view of the operation area of the speed change operation tool 51. As shown in this figure, the machine body front side portion of the guide groove 56 forms a forward operation area F of the speed change operation tool 31, and an intermediate portion of the guide groove 56 forms a neutral position N of the speed change operation tool 31. The machine body rear side portion of the guide groove 56 forms a reverse operation area R of the speed change operation tool 31.

  As shown in FIG. 9, the operation panel 50 includes a movement index 60, a recognition means 61, a neutral index 62, and a reverse movement index 63 provided in the vicinity of the guide groove 56 in the movement direction of the speed change operation tool 51. Yes.

  The movement index 60 includes an operation area for movement in the forward operation area F based on the notation 60a of “move” and an operation area instruction 60b along both sides of the front side portion of the body of the guide groove 56. 70 (hereinafter referred to as a moving operation area 70) is displayed. The movement operation area 70 is an operation area in which the speed change operation tool 51 is operated to move and advance the traveling machine body. That is, when the shift operation tool 51 is operated in the movement operation area 70, the shift operation tool 51 shifts the travel transmission device 31 to a shift state for moving travel (hereinafter referred to as a shift state for travel). . The shift state for movement of the travel transmission 31 is a shift state in which the pair of left and right travel devices 1 and 1 are driven at a forward travel speed for movement.

  The neutral index 62 displays the neutral position N by an alphabetical notation 62a “N” and an operation position instruction 62b along one lateral side of the intermediate portion of the guide groove 56. The reverse indicator 63 displays the reverse operation region R by a character notation 63a of “reverse” and an operation region instruction 63b along both lateral sides of the rear side portion of the guide groove 56.

  The recognizing means 61 includes a work index 64 and a second work index 65 provided between the movement index 60 and the neutral index 62, and further for the first work in the forward operation area F. The operation area 71 (hereinafter referred to as the first work operation area 71) and the operation area 72 for the second work (hereinafter referred to as the second work operation area 72) are displaced by the bend 56a of the guide groove 56. It is constituted by.

  The first work operation area 71 and the second work operation area 72 are displaced in the lateral direction of the machine body. That is, the first work operation area 71 and the second work operation area 72 are displaced in a direction different from the front-rear direction of the body as a moving direction for shifting the travel transmission 31 of the speed change operation tool 51. Yes.

  The work indicator 64 includes a character notation 64a of “work” and an operation area instruction 64b along the lateral sides of the guide groove 56 between the neutral indicator 62 and the movement indicator 60. It is. Thereby, the work index 64 displays the first work operation area 71 and the second work operation area 72 by the notation 64a and the pair of operation area instructions 64b and 64b.

  The second work index 65 includes a character notation 65a “intermediate / peripheral cutting” and an operation area instruction 65b having a shorter length in the shift operation tool moving direction than the operation area instruction 64b of the work index 64. It is configured with. The operation area instruction 65b of the second work indicator 65 is a rectangular drawing surrounding the notation 65a. The second work index 65 is a second work operation area closer to the neutral position N of the first work operation area 71 and the second work operation area 72 based on the notation 65a and the operation area instruction 65b. 72 is displayed.

  The first work operation area 71 is an operation area in which the speed change operation tool 51 is operated so that the traveling machine body travels at the work travel speed in the first work state. That is, when the speed change operation tool 51 is operated in the first work operation area 71, the speed change operation tool 51 causes the travel transmission device 31 to shift to the first work state (hereinafter referred to as the first work shift state). Shift operation. In the first work speed change state, the traveling device 1 is driven so that the traveling machine body travels forward at a work travel speed set so that the work in the first work state is performed in a state where the engine output is appropriately and effectively used. This is a shift state for

  The second work operation area 72 is an operation area in which the shift operation tool 51 is operated so that the traveling machine body travels for work in the first work state. That is, when the speed change operation tool 51 is operated in the second work operation area 72, the speed change operation tool 51 causes the travel transmission device 31 to shift to the second work state (hereinafter referred to as the second work shift state). Shift operation. In the second work shift state, the traveling device 1 is driven so that the traveling machine body travels forward at a work travel speed set so that the work in the second work state is performed in a state where the engine output is appropriately and effectively used. This is a shift state for The work travel speed set for the second work state is lower than the work travel speed set for the first work state.

  It can be known from the display by the work index 64 that the speed change operation tool 51 is located in the first work operation area 71 and the second work operation area 72. It can be known from the display by the second work indicator 65 that the speed change operation tool 51 is located in the second work operation area 72. Knowing that the speed change operation tool 51 has moved from one of the first work operation area 71 and the second work operation area 72 to the other by means of the lateral displacement of the speed change operation tool 51 during the movement. it can.

  As a result, the recognition unit 61 displays the first work operation area 71 by the work index 64 and the second work index 65, and shifts according to the positional deviation between the first work operation area 71 and the second work operation area 72. By making the operator 51 aware of the movement of the operation tool 51 to the first work operation area 71, the operator determines that the speed change operation tool 51 is located in the first work operation area 71. Make the operator recognize that the gear is in a single work shift state. The recognizing means 61 displays the second work operation area 72 by the second work index 65 and the second work of the speed change operation tool 51 by the positional deviation between the first work operation area 71 and the second work operation area 72. By being aware of the movement to the operation area 72, the driver is made to determine that the speed change operation tool 51 is located in the second work operation area 72, whereby the travel transmission 31 is in the second work speed change state. And let the pilot recognize.

  An operation area instruction 60b for the movement index 60, an operation area instruction 64b for the work index 64, an operation area instruction 65b for the second work index 65, an operation position instruction 62b for the neutral index 62, and an operation area instruction for the reverse index 63 63b is provided with a different color to make it easy to determine in which operation area the speed change operation tool 51 is located.

  That is, in the case of traveling, the speed change operating tool 51 is swung to the front side of the machine body along the guide groove 56 around the axis of the support shaft 55 and operated to the moving operation area 70 in the forward movement area F. Then, the traveling transmission 31 can be shifted to a shift state in which a moving traveling speed higher than the work traveling speed is exhibited, and the pair of left and right traveling devices 1, 1 are driven forward at a higher speed than during the working traveling. In this case, the output speed of the travel transmission 31 increases as the shift operation tool 51 is swung more forward in the body.

In the case of work travel, the shift operation tool 51 is swung to the front side of the machine body along the guide groove 56 around the axis of the support shaft 51 to move forward in the first work operation area 71 or the second work operation area. The travel transmission device 31 is operated to change gears. At this time, the travel transmission device 31 has entered the first work shift state in which the work travel speed in the first work state appears, or the second work work in which the work travel speed in the second work state appears. The recognition means 61 recognizes whether or not the gear shift state has been reached, and in the case of turning mowing work, the traveling transmission 31 is shifted to the gear shifting state for the first work, and in the case of middle cutting work or surrounding mowing work Shifts the travel transmission 31 to the second work shift state.
Then, in the case of the rotary cutting work, the pair of left and right traveling devices 1, 1 are driven forward at a lower speed than during the traveling movement and at a higher speed than in the case of the middle cutting or the surrounding cutting work. In the case of middle cutting or peripheral cutting, the pair of left and right traveling devices 1 and 1 are driven forward at a lower speed than during traveling and at a lower speed than in the case of rotating cutting.

  In the case of reverse travel, the speed change operation tool 31 is swung to the rear side of the machine body along the guide groove 56 around the axis of the support shaft 54 to operate in the reverse travel region R. Then, the travel transmission 31 can be shifted to a reverse drive shift state, and the pair of left and right travel devices 1 and 1 are driven backward. In this case, the output speed of the transmission 31 for traveling increases as the shift operation tool 31 is swung further toward the rear of the machine body.

  When the transmission operating tool 31 is operated to the neutral position N, the traveling transmission device 31 is in a neutral state, and driving of the pair of left and right traveling devices 1 and 1 is stopped to stop traveling.

  As shown in FIGS. 2 and 11, the driving unit 6 includes an operation lever 75 provided on the lateral outer side of the operation panel 50 opposite to the driver seat side. The operation lever 75 is operated to swing in the longitudinal direction of the machine body, thereby switching the weed fold 76 shown in FIG. 2 between the lowered use position and the raised storage position. The operation lever 75 is telescopic. That is, when using, it is possible to lightly operate the weed fold 76 in a stretched state, and when not in use, it can be shortened to make it difficult to become an obstacle.

[Another Example]
As the recognition means 61, instead of the configuration of the above-described embodiment, a configuration in which predetermined recognition is performed by display or notification by a lamp or sound, or a configuration in which predetermined recognition is performed by a change in the operation resistance of the transmission operation tool 51 is adopted. May be. In these cases also, the object of the present invention can be achieved.

  Instead of the configuration of the above-described embodiment as the mowing unit 10, between the weeding tools having a smaller weeding tool interval is located on the driving unit side, and between the weeding tools having a larger weeding tool interval. However, it may be carried out by adopting a configuration located on the side opposite to the driving unit side or a configuration including three or more raising paths. The object of the present invention can be achieved in any of the configurations.

Combine left side view Overall plan view of combine Combine front view Right side view of the entire combine Side view of transmission structure Longitudinal front view of traveling mission case Front view of the travel operation device Side view of travel control device Plan view of the operating area of the gearshift operating tool (A) is a plan view of the cutting part in the first working state, (B) is a plan view of the cutting part in the second working state. Side view of the weed control lever

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Cutting part 31 Traveling transmission 51 Shifting operation tool 61 Recognition means 64 Work index 65 Second work index 71, 72 Operation area 72 indicated by work index Operation area W indicated by second work index W

Claims (3)

A combine provided with a cutting part having a cutting processing width for cutting a plurality of planted cereals and a manipulatable shift operation tool for shifting the travel transmission,
Whether the speed change state of the traveling transmission device is a speed change state in which the working speed of the first work state in which the planted cereals having a smaller number of planting strips than the plurality of planting strips are introduced into the harvesting portion appears. Alternatively, the combine is provided with recognition means for allowing the operator to recognize whether or not the speed change state in which the work traveling speed in the second work state is introduced, in which the planted culms of the plurality of planting ridges are introduced into the harvesting unit.   A second work index indicating an operation range for operating the travel transmission device of the shift operation tool to the shift state for the second work state; and the travel transmission device of the shift operation tool for working travel. The combine according to claim 1, wherein the recognition means is configured to include an operation index indicating an operation range operated in a shift state.   An operation range for operating the travel transmission device of the shift operation tool to a shift state for the first work state, and the travel transmission device of the shift operation tool to a shift state for the second work state. The combiner according to claim 1 or 2, wherein the recognition means is configured by shifting an operation range to be operated in a direction different from a moving direction in which the travel transmission device of the shift operation tool performs a shift operation.

Images