JP2014073136A - Combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combine harvester facilitating reaping work by acquiring an appropriate track according to a situation of a grain culm.SOLUTION: A combine harvester 1 includes a reaping part 3 disposed in front of a traveling part 2, and a driving part 8 disposed in front of the traveling part at the back of the reaping part 3. The combine harvester further includes imaging means 12 (13) for capturing images in front of the driving part 8 or the back of a machine body, and a display device 85 for displaying the images captured by the imaging means 12 (13). The display device 85 is disposed at the upper right of a front column 86 disposed in front of a seat 81 of the driving part 8.

Description

  The present invention relates to a combine technique.

  Conventionally, various contrivances have been made for a combine to make it easier for an operator to grasp the state of cereal harvesting and to perform the harvesting operation. For example, as shown in Patent Document 1, a display device provided on a ceiling wall in a driving cabin, a rear imaging unit that captures the rear of the aircraft, and a right front imaging unit that captures the right front of the traveling aircraft are provided. ing. And the technique which improved the visibility of the row | line | column ahead of a body is known by selectively switching and displaying the imaging | photography information (capturing image | video) from these imaging means (imaging means) on a display apparatus. .

JP 2008-89 A

  When performing the cutting operation, the operator usually turns his / her line of sight toward the front of the cutting unit in order to determine whether the rightmost weed body is located between the strips. However, in Patent Document 1, only the shooting information of the image pickup means is displayed, so that depending on the state of the culm in the field, an appropriate course according to the state of the culm cannot be grasped, and the cutting operation is performed. There was a problem that it was difficult.

  The present invention provides a combine that makes it possible to grasp an appropriate course according to the situation of the cereal and facilitates the cutting operation.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

  In Claim 1, It is a combine provided with a running part, a cutting part arranged ahead of the running part, and a driving part arranged on the front part of the running part behind the cutting part, An imaging unit that captures an image of the front of the driving unit or the rear of the aircraft, and a display device that displays an image captured by the imaging unit, the display device being disposed in front of the seat of the driving unit. It is arranged at the upper right of the front column.

  According to a second aspect of the present invention, in the combine according to the first aspect, the display device displays an image obtained by photographing the periphery of the front portion of the cutting unit.

  According to a third aspect of the present invention, the combine according to the first or second aspect further comprises a display device switching means capable of switching an image displayed on the display device.

  As effects of the present invention, the following effects can be obtained.

  In Claim 1, it is a combine provided with a running part, a cutting part arranged ahead of the running part, and a driving part arranged on the front part of the running part behind the cutting part, An imaging unit that images the front of the driving unit or the rear of the aircraft, and a display device that displays an image captured by the imaging unit, wherein the display device is disposed in front of a seat of the driving unit. Since it is arranged at the upper right of the column, when changing the line of sight by moving the head H greatly, the line of sight movement distance becomes long, and the traveling direction becomes easy to shift, but the line of sight is changed as in this embodiment. When the eyes are moved, the line-of-sight movement distance can be shortened, so that when the work is performed while the alignment is performed, the cutting operation can be accurately performed without shifting the traveling direction.

  In the present invention, since the display device can display an image obtained by photographing the periphery of the front portion of the reaping part, the operator sitting on the seat is arranged on the rightmost side during the reaping work. From the state of looking at the grass body, it is possible to confirm the detailed cutting operation status from the video displayed on the display device only by changing the line of sight, that is, moving the eyes without moving the head H greatly.

  In claim 3, since the display device switching means capable of switching the image displayed on the display device is provided, the display device displays the cutting state in front of the combine, or displays the field state behind the combine. The predicted path trajectory can be displayed so as to be superimposed on the captured image, or a plurality of images can be displayed simultaneously.

The left view which shows the whole structure of the combine which concerns on one Embodiment of this invention. Similarly right side view. FIG. The top view around a seat part similarly. The top view of the seat part periphery which concerns on another embodiment. Control block diagram. The flowchart of the display control of a display apparatus. FIG. 8 is a flowchart of “alternative mode” in FIG. 7. 8 is a flowchart of “multiple selection mode” in FIG. 7. The flowchart of “automatic mode” in FIG. The figure which shows a display apparatus on-off means or a prediction course display on-off means, (a) is a rotation type, (b) is a pressing type. The figure which shows a display apparatus switching means. The figure which displayed on the display apparatus the image of the main 1st imaging | photography means at the time of a straight drive of a combine, its predicted course locus | trajectory, and a step-down prediction area | region. The figure which displayed on the display apparatus the image of the main 1st imaging | photography means at the time of a combine turning, its predicted course locus, and a stepping down prediction area | region. The figure which divided | segmented and displayed the image | video of the main 1st imaging | photography means on which the prediction course locus | trajectory was superimposed, and the video of the 2nd imaging | photography means on the display apparatus. The figure which showed the course direction of the combine at the time of cutting around.

  Hereinafter, the overall configuration of the combine 1 according to an embodiment of the present invention will be described.

  The combine 1 is configured so that the harvesting operation can be performed, and more specifically, the harvesting operation can be performed by cutting the harvested rice cake from the farm field, threshing the harvested harvested rice cake, and selecting the harvested grain. . As shown in FIG. 1, the combine 1 includes a traveling unit 2, a mowing unit 3, a threshing unit 4, a sorting unit 5, a grain storage unit 6, a waste processing unit 7, an engine unit (not shown), a mission unit ( The operation part 8 etc. are provided.

  The traveling unit 2 is provided at the lower part of the body frame 9. The traveling unit 2 includes a crawler traveling device 21 having a pair of left and right crawlers. The traveling unit 2 is configured to travel the airframe when driven by the crawler traveling device 21.

  The mowing unit 3 is provided so as to be movable up and down with respect to the front end of the body frame 9. The cutting unit 3 includes a weeding device 31, a pulling device 32, a cutting device 33, a conveying device 35, a cutting frame 34 that supports these devices, and the like.

  The mowing unit 3 divides the cereals by the weeding device 31, then raises the uncut cereal by the pulling device 32 behind the weeding device 31, and the cutting device 33 at the lower rear of the pulling device 32 removes After cutting the stock, the transport device 35 is used to transport the cut cereal to the feed chain 41 of the threshing unit 4.

  In the weeding device 31 among the devices of the mowing unit 3, the weeding body 31 a is attached to the front end of the weeding frame 31 b extending forward from the mowing frame 34 so as to be front-rear and rear-height. The weeding body 31a is a tapered member that forms the front part of the weeding device 31, and is used to guide the pulling device 32 of each strip and the scraping mechanism of the transporting device 35. In the present embodiment, the six weed bodies 31a (for six strips) are provided and arranged at predetermined intervals in the left-right direction. Here, the weeding body 31 a arranged on the rightmost side is arranged in front of the right end of the body frame 9.

  In the pulling device 32 among the devices of the cutting unit 3, a plate-shaped dustproof cover 43 is attached to the upper portion of the pulling device 32. The dust cover 43 extends rearward from the upper part of the pulling device 32 and is disposed so as to cover a part of the transport device 35 from above. The dust-proof cover 43 prevents dust and the like from rising from the cereals and the like conveyed toward the threshing unit 4 by the conveying device 35.

  As shown in FIG. 1, the threshing part 4 is provided on the left front part of the body frame 9 and behind the reaping part 3. The threshing unit 4 includes a feed chain 41, a pinch 42, a handling cylinder (not shown), and the like. The threshing unit 4 inherits the cereals conveyed from the cutting unit 3, conveys the cereals to the waste processing unit 7 side by the feed chain 41, threshs the cereals being conveyed by a handling cylinder, etc., and sorts the cereals It is comprised so that it may fall to 5.

  The sorting unit 5 is provided on the left side of the machine body frame 9 and below the threshing unit 4. The sorting unit 5 sorts the cereal that has fallen from the threshing unit 4 into the first thing (grain), the second thing (non-threshing, etc.), swarf, dust, and the like by swing sorting and wind sorting. Then, the sorting unit 5 conveys the sorted first item to the grain storage unit 6, conveys the second item to the threshing unit 4 or the swing sorting device, and discharges swarf and dust to the outside. It is configured.

  The grain storage unit 6 is provided on the right side of the machine body frame 9 on the right side of the threshing unit 4 and the sorting unit 5. The grain storage unit 6 includes a grain tank 61, a grain discharge device 62, and the like. The grain storage unit 6 temporarily stores the grain conveyed from the sorting unit 5 in the grain tank 61 and discharges the grain stored in the grain tank 61 to the outside by the grain discharging device 62. It is configured to be able to.

  The waste disposal part 7 is provided on the rear part of the machine body frame 9 and behind the threshing part 4. The waste disposal unit 7 includes a waste transport device 71, a waste cutting device 72, a bundling device 73, a three-dimensional discharge device 74, and the like. In the present embodiment, the bundling device 73 and the three-dimensional discharge device 74 are attached to the rear portion of the waste cutting device 72, but the present invention is not limited thereto. You may comprise only the apparatus 71 and the exclusion cutting apparatus 72. FIG. The slaughter processing unit 7 inherits the threshed sorghum transported from the threshing unit 4 by the scouring transport device 71 and discharges it to the outside. It is configured such that it can be discharged by the three-dimensional discharge device 74 after being discharged or bound by the binding device 73.

  The waste transporting device 71 includes a waste chain 71a and a pinch. The wastes conveyed from the feed chain 41 are inherited by being sandwiched between the upper catches and the lower reject chains 71a and transported backward.

  The waste cutting device 72 includes a switching cover 72a, a waste cutter 72b, and the like. The switching cover 72a is disposed below the waste chain 71a that transports the waste. The switching cover 72a is disposed on the upper portion of the waste cutting device 72, and selects whether the waste is transported to the waste cutter 72b or the binding device 73 by rotating and switching the switching cover 72a. Is possible.

  The waste cutter 72b cuts the waste into a predetermined length, and is disposed below the switching cover 72a. The waste cutter 72b is a plurality of disc-shaped cutting blades, all of which are provided at predetermined intervals in the middle of the rotary shaft that is horizontally provided in the left-right direction of the machine body. Therefore, when the switching cover 72a is rotated forward, the waste conveyed by the waste conveying device 71 is cut by the waste cutter 72b and discharged outside the machine body. On the other hand, when the switching cover 72a is rotated downward, the waste conveyed from the waste conveying device 71 is conveyed to the bundling device 73 described later via the upper portion of the switching cover 72a.

  The bundling device 73 is a device that binds the waste with a string by a predetermined amount. The bundling device 73 includes a packer 73a, a stock gathering plate 73b, a bundling portion 73c, a door 73d, a discharge arm 73e, and the like. The packer 73a scrapes into the accommodation space that temporarily accommodates the waste that has been conveyed through the upper portion of the switching cover 72a. The wastes accommodated in the accommodation space are aligned by the stock source aligning plate 73b arranged on the left side of the machine body. A binding portion 73c that wraps and binds a string around the bundle of waste when the waste stored in the storage space exceeds a predetermined amount, while the waste stored in the storage space does not exceed the predetermined amount After closing the outlet of the accommodation space and binding the waste by the bundling portion 73c, the door 73d that opens the outlet of the accommodation space, and scraping the waste bundle bound by the binding portion 73c from the outlet of the accommodation space A discharge arm 73e that discharges (delivered to a three-dimensional discharge device 74 described later) and the like are provided.

  The three-dimensional discharge device 74 is provided behind the bundling device 73, and the bundling device 73 spreads the stock base part of the waste that binds the tip part, and discharges the waste in a self-supporting posture on the field. The three-dimensional discharge device 74 includes a transport body 74a and a guide rod 74d. The transport body 74a includes a support plate 74b, a transport chain 74c, a drive sprocket (not shown), a driven sprocket (not shown), and the like.

  The support plate 74b is a main plate-like structure that discharges waste, and is disposed rearward so that the longitudinal direction is front and rear. The driving sprocket and the driven sprocket are rotatably supported at a predetermined interval before and after the support plate 74b. The conveyance chain 74c is wound between the drive sprocket and the driven sprocket and is rotatable.

  The guide rod 74d is disposed so as to face the conveyance surface (left side surface) of the conveyance chain 74c. Further, a support frame 74e is disposed on the outside of the guide rod 74d (in the present embodiment, on the left side in the machine body traveling direction) substantially in parallel with the transport body 74a and the guide rod 74d. Further, the start end (exhaust bundle conveyance entrance) side of the guide rod 74d in the conveyance direction is formed so as to become gradually narrower toward the rear in the conveyance direction, and the bundled waste rod is disposed between the guide rod 74d and the conveyance body 74a. It is formed so that it can be easily accepted. Then, on the downstream side of the guide rod 74d, a projection made of a plate body having a triangular shape in plan view is arranged on the surface facing the conveyance body 74a with a predetermined interval.

  Accordingly, the waste transported by the waste transporting device 71 is bound by the binding device 73. The bound excrement is inherited by the three-dimensional discharge device 74 and is discharged to the field at a predetermined interval. The discharged waste is in an upright posture with the binding position as the upper side of the waste.

  The operation unit 8 is provided on the right front side of the body frame 9 and on the right side of the conveying device 35 of the cutting unit 3. As shown in FIGS. 1 to 5, the driving unit 8 includes a seat 81, a handle 82 that is a steering operation means, an operation lever such as a cabin 83 and a main transmission lever 84, an operation panel 87, a display device 85, and the like. In the operation unit 8, other members are covered with a box-shaped cabin 83.

  The steering operation means is the handle 82 in the present embodiment, but it may be a mono lever or the like that performs the steering operation by turning and tilting, and is not particularly limited.

  Inside the cabin 83, an operating space for workers is formed. In this driving space, the handle 82 is in front of the seat 81, the front column 86 is in front of the handle column 82a that supports the steering shaft of the handle 82, the display device 85 is in the upper right of the front column 86, and the operation panel 87 is in the left of the seat 81. And a side column 88 on which the main transmission lever 84 and the like are arranged. In addition, a door is provided on the right wall of the cabin 83.

  In this way, the combine 1 transmits the motive power of the engine of the engine unit to the devices of the respective units by operating the operation tools in the operation unit 8, and causes the traveling unit 2 to travel the machine body while cutting the cutting unit 3. The threshing part 4 is reaped, the threshing part 4 threshs the cereal grain from the reaping part 3, the sorting part 5 sorts out the cereal from the threshing part 4, and the grain storage part 6 At the same time as storing the grains, the waste processing unit 7 is configured to discharge the waste from the threshing unit 4 to the outside.

  Below, the display apparatus 85 arrange | positioned at the driving | operation part 8 is demonstrated.

  The display device 85 appropriately displays at least one of the images photographed by auxiliary first photographing means 11, main first photographing means 12, second photographing means 13, and third photographing means 14, which will be described later. belongs to. The display device 85 is disposed in the vicinity of the handle 82. Specifically, as shown in FIGS. 3 and 4, a straight line (two points in FIG. 3) connecting the head H of the worker sitting on the seat 81 and the weed body 31 a arranged on the rightmost side in the cutting unit 3. Near the chain line).

  Specifically, in the present embodiment, the support member 85a is provided so as to extend upward from the vicinity of the upper right portion of the front column 86, and the display device 85 is attached to the extended end portion of the support member 85a. Yes. In this state, the display device 85 is disposed on the right front side of the handle 82, and is disposed slightly on the right side with respect to the weed body 31a disposed on the rightmost side as viewed from the operator sitting on the seat 81.

  The support member 85a may be provided on the right front support column of the cabin 83, and the display device 85 may be attached to the support member 85a and disposed at an appropriate position.

  With such a configuration, the operator sitting on the seat 81 can change the line of sight slightly from the state of looking at the herbaceous body 31a arranged on the rightmost side during the cutting operation, that is, without moving the head H greatly. By moving the eyes, the detailed cutting operation status can be confirmed from the video displayed on the display device 85. Therefore, when changing the line of sight by moving the head H greatly, the direction of movement of the line of sight becomes longer, and the traveling direction is easily shifted. However, when changing the line of sight as in this embodiment, In this case, since the line-of-sight movement distance is short, when the work is performed while the alignment is performed, the cutting operation can be accurately performed without deviation of the traveling direction.

  Further, as shown in FIGS. 13 to 15, the display device 85 displays the predicted track locus B so as to display the field state behind the combine 1 or to superimpose it on the captured video by various setting means to be described later. It is configured so that it can be displayed or a plurality of images can be displayed simultaneously. In addition, the display device 85 can display the predicted region C that is stepped down in order to prevent the aircraft from moving forward and stepping on the uncut grain mash by operating the steer to the uncut grain side. It is configured. This stepping over prediction region C is set in advance.

  When the stepping-down prediction area C and the predicted course trajectory B intersect during the cutting operation, a warning is issued. Specifically, during the cutting operation, the forward image captured by the first imaging means, the predicted course locus B created by calculation based on the state of the handle 82, the traveling speed, and the like, and the step-down prediction region C However, when the handle 82 is operated in a state where it is superimposed on the display device 85 and the predicted course trajectory B is stepped down and overlaps the prediction region C, the stepping prediction region C displayed on the display device 85 blinks. An alarm is issued. That is, as a result of the operation of the handle 82, when the predicted course trajectory B is stepped down and enters the prediction region C, the stepping-down prediction region C blinks, and the uncut grain culm is stepped on by the aircraft as it is. A warning is issued for.

  In the present embodiment, it is configured to step on the display device 85 and blink the prediction region C so as to issue an alarm to the operator that there is a risk of stepping over the uncut grain culm, and this display device 85 is used as an alarm device. However, when it is necessary to issue an alarm, for example, a lamp is provided in the operation unit 8 as an alarm device, and the controller 97 blinks or lights up, or a buzzer is used as an alarm device in the operation unit 8 separately. It is also possible to provide an alarm sound by the control device 97.

  In addition, although the driving | operation part 8 is set as the structure with the cabin 83 in this embodiment, it is good also as a structure which does not have a cabin, and it does not specifically limit it. As shown in FIG. 5, even when the driving unit 8 does not have the cabin 83, the display device 85 is located in the vicinity of a straight line connecting the head H of the worker sitting on the seat 81 and the weed body 31 a arranged on the rightmost side. May be arranged. Specifically, for example, the display device 85 is provided above a rearview mirror 89 provided on the right front side of the handle 82 and prevents the operator sitting on the seat 81 from seeing the herbicidal body 31a or the rearview mirror 89. Placed in no position.

  Below, the structure of the display control of the display apparatus 85 is demonstrated.

  As shown in FIGS. 1 and 6, the combine 1 includes, in addition to the display device 85, an auxiliary first imaging unit 11, a main first imaging unit 12, a second imaging unit 13, and a third imaging unit, which are first imaging units. An imaging unit 14, an operation amount detection unit 91, a traveling state detection unit 92, and a control device 97 are provided.

  The auxiliary first photographing means 11 is a means for photographing the periphery of the front part of the cutting part 3, and is composed of a CCD camera or the like. In the present embodiment, as shown in FIG. 2, the auxiliary first imaging unit 11 is installed near the front lower portion of the right side portion of the cabin 83 via a support member. In the auxiliary first photographing means 11, the direction of the lens (photographing direction) can be adjusted so that the herbicidal body 31 a arranged on the rightmost side in the cutting unit 3 can be photographed from the upper side.

  The main first photographing means 12 is a means for photographing the front of the cutting unit 3 and is composed of a CCD camera. The main first photographing means 12 is installed through a support member at the front of the machine body and in the middle of the left and right. Specifically, it is installed in the lower left part of the eaves part 83a provided in the front upper part of the cabin 83. When the operating part is not of the cabin specification, the main first photographing means 12 is installed at the foremost part of the cutting part 3 and at the substantially left and right center of the uppermost part.

  The second photographing means 13 is a means for photographing the rear of the machine body and is constituted by a CCD camera. The 2nd imaging | photography means 13 is installed through the support member in the left-right center upper part of the aircraft rear part. However, you may arrange | position the 2nd imaging | photography means 13 in the rear upper part of the exclusion process part 7 (Bundling apparatus 73 or the solid emission apparatus 74).

  The third photographing means 14 is a means for photographing the vicinity of the front portion (handle opening) that is the conveyance start end portion of the feed chain 41, and is constituted by a CCD camera. The 3rd imaging | photography means 14 is installed through the support member in the upper part of the dust cover 43, or the front upper part of the threshing part 4. FIG.

  Note that the auxiliary first photographing unit 11, the main first photographing unit 12, the second photographing unit 13, and the third photographing unit 14 are not CCD cameras, but may be CMOS cameras or the like as long as photographing is possible. Further, the installation positions of the respective photographing means are not particularly limited as long as the photographing direction is the same as the photographing direction, the positions in the left-right direction and the vertical direction may be different from the installation position. .

  In the present embodiment, the first photographing means is the auxiliary first photographing means 11 and the main first photographing means 12, but the number of installation is not limited. That is, the number of the first photographing means can be photographed in detail around the front part of the cutting part 3 as in the auxiliary first photographing means 11 and in front of the cutting part 3 as in the main first photographing means 12. If it has a function, one may be sufficient, and three or more may not be limited.

  Further, the supporting members of the auxiliary first photographing means 11, the main first photographing means 12, the second photographing means 13, and the third photographing means 14 are configured so that the photographing direction of each photographing means can be changed. .

  As shown in FIG. 6, the auxiliary first photographing means 11, the main first photographing means 12, the second photographing means 13, and the third photographing means 14 are photographing means and are connected to the control device 97. The images of the auxiliary first photographing means 11, the main first photographing means 12, the second photographing means 13, and the third photographing means 14 are displayed on the display device on / off means 94, on the display device switching means 95, and on the predicted route display. It is appropriately displayed on the display device 85 by the operation of the cutting means 96 or automatically.

  In addition to the photographing means 11, 12, 13, 14 and the display device 85, the control device 97 includes detection means such as an operation amount detection means 91, a traveling state detection means 92, a traveling speed detection means 93, and a display device on / off state. Setting means such as means 94, display device switching means 95 and predicted course display on / off means 96 are also connected.

  The control device 97 calculates based on the output values from the detection means and the setting means, creates a predicted course trajectory of the herbicidal body 31a or the aircraft during reverse travel, and creates the predicted course trajectory B thus created. Can be displayed on the display device 85 so as to be superimposed on the video imaged by any of the imaging means. Note that the predicted course locus is calculated based on at least the operation amount of the handle 82, but in the present embodiment, it is calculated more accurately based on two values by adding the traveling speed thereto.

  The operation amount detection means 91 is a sensor that detects an operation amount R (rotation angle) of the handle 82 that is a steering operation means. The operation amount detection means 91 is configured to detect an operation amount (rotation amount) R of the handle 82 based on straight traveling using a potentiometer, a rotary encoder, or the like. However, when the steering operation means is composed of a monolever or the like, it is configured to detect the tilting direction and tilting amount of the monolever.

  The traveling state detection unit 92 is a sensor that detects whether the operation position of the main transmission lever 84 is a forward operation position or a reverse operation position.

  The traveling speed detection means 93 is a sensor for detecting the traveling speed of the combine 1. The traveling speed detecting means 93 is configured to detect the rotational speed of the axle of the traveling unit 2 using a rotational speed sensor or the like. The detected rotational speed is output to the control device 97, and the traveling speed is calculated by the control device 97 based on the rotational speed.

  The display device on / off means 94 is a means for selecting whether or not to display on the display device 85 the video from each of the imaging means 11, 12, 13, 14, or the video and the predicted course locus B corresponding thereto. It is. The display device on / off means 94 includes a rotatable switch as shown in FIG. 11 (a), a pushable switch as shown in FIG. 11 (b), and the like, and a cabin near the display device 85. 83 is provided on the front wall.

  The display device switching means 95 is a means for selecting an image displayed on the display device 85. As shown in FIG. 12, the display device switching means 95 is composed of a switch group that can be pressed, and is provided on the front wall of the cabin 83 in the vicinity of the display device 85. Each switch is configured so that “front details”, “front”, “rear”, “handle” or “automatic” is set as the item, and an image corresponding to the pressed switch item is selected. Has been. Among these switches, a plurality of front detail switches 95a, front switches 95b, rear switches 95c, and handle switches 95d can be simultaneously selected.

  Among the switch items here, “Details in front” is a picture taken by auxiliary first photographing means 11, “Front” is a picture taken by main first photographing means 12, and “Back” is second photographing means. The video imaged by 13 and the “handle” are for displaying the video imaged by the third imaging means 14 on the display device 85. Further, “automatic” is for displaying on the display device 85 a video photographed by each photographing means selected in accordance with a display rule stored in advance in the control device 97.

  The predicted course display turning-on / off means 96 is for selecting whether or not to create the herbicidal body 31a (see FIG. 5) or the predicted course locus B of the aircraft position that the control device 97 calculates based on the detection value of each detecting means. It is means of. The predicted course display on / off means 96 includes a rotatable switch as shown in FIG. 11A or a pushable switch as shown in FIG. It is arranged on the front wall of the cabin 83. When the predicted course display on / off means 96 is set to “OFF”, the predicted course trajectory B is not created by the control device 97 and the predicted course trajectory B is not displayed on the display device 85.

  The configurations of the display device on / off means 94, the display device switching means 95, and the predicted course display on / off means 96 are not limited, and may be configured with push button switches, touch panels, or the like.

  Hereinafter, a display method of the display device 85 according to the setting change of each setting unit will be described with reference to FIGS.

  As shown in FIG. 7, first, the control device 97 determines whether or not the setting of the display device on / off means 94 is “ON”, that is, whether or not to display an image on the display device 85 (S1).

  In step S <b> 1, when it is determined that the display device on / off means 94 is set to “OFF”, that is, no video is displayed on the display device 85, the control device 97 does not display anything on the display device 85.

  If it is determined in step S1 that the display device on / off means 94 is “ON”, the control device 97 acquires the item of the switch selected by the display device switching means 95 (S2).

  The control device 97 determines whether or not the acquired switch item is “automatic” (S3). When the acquired switch item is “automatic”, the control device 97 sets the step to “automatic mode” so as to display the video imaged by each imaging means selected according to the display rule stored therein. To migrate.

  The control device 97 determines whether or not there are a plurality of acquired switch items (S4). When there are a plurality of items of the acquired switch, the step is shifted to the “multiple selection mode” so as to display the video from the photographing means corresponding to the two or more items.

  If the acquired switch item is not plural, the control device 97 determines that the acquired switch item is one. In this case, the control device 97 shifts the step to the “alternative mode” so as to display the video from the photographing means corresponding to the item.

  Hereinafter, the case where the control device 97 shifts the step to the “alternative mode” in step S4 will be described.

  As shown in FIGS. 6 and 8, the control device 97 determines whether or not the item of the switch selected by the display device switching means 95 is “handle” (S11).

  If it is determined in step S11 that “Handling Port” is not selected, the control device 97 determines whether or not the item of the switch selected by the display device switching means 95 is “front detail” ( S12).

  If it is determined in step S12 that the item of the switch selected by the display device switching means 95 is not “front detail”, the control device 97 sets the item of the switch selected by the display device switching means 95 to “rear”. It is determined whether or not there is (S13).

  In step S13, when it is determined that the item of the switch selected by the display device switching unit 95 is not “rear”, the control device 97 has the item of the switch selected by the display device switching unit 95 “front”. Whether or not (S14).

  If it is determined in step S14 that the item of the switch selected by the display device switching means 95 is not “front”, the control device 97 sets the display device 85 to “OFF” (S20), and the image is photographed by each photographing means. The video is not displayed on the display device 85. Alternatively, the control device 97 displays a video (such as a television video) other than the video shot by each shooting unit.

  When the control device 97 determines that the item of the switch selected by the display device switching means 95 in step S11 is “handle”, the control device 97 selects the item of the switch selected by the display device switching means 95 in step S12. When it is determined that “front details” is selected, or when it is determined that the item of the switch selected by the display device switching unit 95 in step S13 is “rear”, the corresponding photographing units 11 and 12 corresponding to the respective items are selected. -The video image | photographed by 13 * 14 is displayed on the display apparatus 85 (S19).

  If it is determined in step S14 that the item of the switch selected by the display device switching means 95 is “front”, the control device 97 determines whether or not the predicted course display on / off means 96 is “on”, that is, displays. It is determined whether or not the predicted course trajectory B is displayed on the device 85 (S15).

  In step S15, when it is determined that the predicted course display on / off means 96 is not "ON", the control device 97 displays only the video from the main first photographing means 12 on the display device 85 (S19).

  In step S15, when it is determined that the predicted course display on / off means 96 is “ON”, the control device 97 acquires the operation amount R detected by the operation amount detection means 91 and at the same time the travel speed detection means 93. The detected traveling speed V is acquired and stored in the storage unit (S16).

  Next, in step S16, the control device 97 creates a predicted course trajectory B corresponding to the video imaged by the main first imaging means 12 based on the acquired operation amount R and travel speed V (S17).

  Next, the control device 97 causes the display device 85 to display the video imaged by the main first imaging means 12, that is, the video image in front of the cutting unit 3, and further displays the predicted course trajectory B created in step S17. It is superimposed on the video (S18).

  Even when the control device 97 determines in step S13 that the item of the switch selected by the display device switching means 95 is “rear” (the same applies when “rear” is selected in the following description), It is also possible to calculate the predicted path B in the backward direction, and to superimpose it on the video imaged by the second imaging means 13 and display it on the display device 85.

  Hereinafter, the case where the control device 97 shifts the step to the “multiple selection mode” in step S5 will be described.

  In the present embodiment, for the sake of simplicity of explanation, two-screen display will be described, but it is also possible to display in the same manner when there are three or more screens. In the case of the two-screen display, the screen of the display device 85 can be divided and displayed equally on the left and right, or the screen can be divided and displayed so that one is larger and the other is smaller. .

  As shown in FIG. 9, the control device 97 determines whether or not the predicted course display on / off means 96 is “ON”, that is, whether or not the predicted course locus B is displayed on the display device 85 (S221). .

  When it is determined in step S221 that the predicted course display on / off means 96 is “OFF”, the control device 97 is selected when the item of the switch selected by the display device switching means 95 is selected as “FRONT”. Only the video of the main first photographing means 12 is displayed on the display device 85. (S222). When it is determined in step S221 that the predicted course display on / off means 96 is “ON”, the control device 97 determines that the switch item selected by the display device switching means 95 is “forward”. The predicted course trajectory B described above is superimposed on the video of the main first photographing means 12 and displayed on the display device 85. (S223).

  Next, it is determined whether or not the item of the switch selected by the display device switching means 95 is “handle” (S224).

  If it is determined in step S224 that the item of the switch selected by the display device switching means 95 is “handle”, the control device 97 determines that the item of the switch selected by the display device switching means 95 is “front detail”. Is determined (S225).

  In step S225, when it is determined that the item of the switch selected by the display device switching means 95 is “front detail”, the control device 97 uses the third photographing means 14 (“handpiece”) and the auxiliary first photographing. The video of the means 11 (“front details”) is divided and displayed on the display device 85 (S226). If it is determined in step S225 that the item of the switch selected by the display device switching means 95 is not “front detail”, the control device 97 sets the item of the switch selected by the display device switching means 95 to “rear”. It is determined whether or not there is (S227).

  If it is determined in step S227 that the item of the switch selected by the display device switching means 95 is “rear”, the control device 97 causes the display device 85 to include the third photographing means 14 (“handpiece”) and the second. The image of the photographing means 13 (“rear”) is displayed (S228). If it is determined in step S227 that the item of the switch selected by the display device switching means 95 is not “rear”, the control device 97 adds the third photographing means 14 (“handpiece”) to the display device 85 and the main first. The image of the photographing means 12 (“front”) is displayed (S229).

  On the other hand, if it is determined in step S224 that the item of the switch selected by the display device switching means 95 is not “handle”, the control device 97 sets the item of the switch selected by the display device switching means 95 to “ It is determined whether or not it is “forward details” (S230).

  In step S230, if the item of the switch selected by the display device switching means 95 is not “front detail”, the control device 97 causes the display device 85 to include the second photographing means 13 (“rear”) and the main first photographing means 12. (“Front”) video is displayed (S234). In step S230, when the item of the switch selected by the display device switching means 95 is “front detail”, the control device 97 determines whether the item of the switch selected by the display device switching means 95 is “rear”. It is determined whether or not (S231).

  In step S231, when the switch item selected by the display device switching unit 95 is “rear”, the control device 97 causes the display device 85 to add the auxiliary first photographing unit 11 (“front detail”) and the second photographing unit. 13 ("rear") video is displayed (S232). If it is determined in step S231 that the switch item selected by the display device switching means 95 is not “rear”, the control device 97 causes the display device 85 to add the auxiliary first photographing means 11 (“front details”) and the main switch. The image of one photographing means 12 (“front”) is displayed (S233). In the case of the three-screen display, the control device 97 determines the switch item selected by the display device switching means 95 and displays the corresponding video on the display device 85 in the same manner as described above. It is also possible to provide a switch for switching the display of the screen.

  Hereinafter, the case where the control device 97 shifts the step to the “automatic mode” in step S3 will be described.

  As shown in FIG. 10, the control device 97 determines whether or not the operation position P of the main transmission lever 84 is the “reverse operation position” based on the detection information of the traveling state detection means 92 (S331).

  If it is determined in step S331 that the operation position P is the “reverse operation position”, the control device 97 displays an image of the third photographing means (“rear”) on the display device 85 (S332). If it is determined in step S331 that the operation position P is not the “reverse operation position”, the control device 97 determines whether or not the work clutch is “ON” (S333).

  In step S333, when the work clutch is not “ON”, the control device 97 “OFF” the display device 85 because it is not necessary to look at the display device 85, that is, to see the front in the traveling direction (S334). ), Images taken by the respective photographing means are not displayed on the display device 85. In step S333, when the work clutch is “ON”, the control device 97 determines whether or not the amount of the culm is equal to or greater than a set value (S335). The amount of the culm is detected by the cutting unit 3 or the feed chain 41 by a detecting unit (not shown).

  If it is determined in step S335 that the amount of the culm is greater than or equal to the set value, the control device 97 may cause the display device 85 to display the third photographing means 14 (“handling mouth” because it may be clogged or stayed. ") Is displayed (S336). At this time, the worker can grasp whether or not the amount of cereal is larger than usual, and can reduce the traveling speed according to the situation. Thus, workability is improved. In step S335, when it is determined that the amount of culm is less than the set value, the control device 97 determines whether or not the operation amount R of the handle 82 is greater than or equal to the set value. That is, the control device 97 determines whether or not the combine is traveling straight (S337).

  If it is determined in step S337 that the operation amount R of the handle 82 is less than the set value, the combiner 1 is traveling straight ahead, so the control device 97 causes the display device 85 to display the auxiliary first photographing means 11 ("forward details"). Is displayed (S338). If it is determined in step S337 that the steering wheel operation amount is greater than or equal to the set value, the control device 97 determines whether or not the predicted course display on / off means 96 is “ON” (S339).

  In step S339, when it is determined that the predicted course display on / off means 96 is “ON”, the control device 97 superimposes the predicted path trajectory B on the video of the main first photographing means 12 (“front”). 85 is displayed (S340). Thereby, the operator can grasp the cutting prediction in the turning direction, that is, the predicted course of the weeding body 31a. If it is determined in step S339 that the predicted course display on / off means 96 is “OFF”, the control device 97 causes the display device 85 to display only the image of the main first imaging means 12 (“front”) (S341). .

  Hereinafter, in a state in which “automatic” is selected by the display device switching means 95 (“automatic mode”), the predicted path trajectory B is calculated and superimposed on the video photographed by the photographing means by the control device 97, and the display device 85. A specific example to be displayed will be described.

  In FIGS. 13-16, a cross mark shows the location where the corn straw of the field was cut off, and a round mark shows the location where the corn kernel of the field was not cut. For example, during trimming, during the cutting operation performed while traveling forward in the forward direction V1 shown in FIG. 16, the operation position P of the main transmission lever 84 is the “forward traveling position”, and other conditions are set as described above. If it is satisfied, a predicted course trajectory B is created by the control device 97 based on the operation amount R and the traveling speed V, and is superimposed on the video imaged by the main first imaging means 12, that is, the video image in front of the reaping unit 3. The video is displayed on the display device 85.

  Then, when the combine 1 reaches the end of the field and performs corner cutting, as shown in FIG. 16, the operator temporarily moves the combine 1 backward by a predetermined distance in the reverse V2 direction. At this time, when the main transmission lever 84 is operated to the “reverse travel position”, the operation state P of the main transmission lever 84 is detected as the “reverse operation position” by the traveling state detection unit 92, and the predicted travel path trajectory is detected by the control device 97. Is superimposed on an image captured by the second imaging means 13, that is, an image behind the aircraft, and the image is displayed on the display device 85. Therefore, the operator can easily confirm the field end behind the machine body, and it is possible to prevent the traveling unit 2 from stepping on the uncut grain culm and moving backward.

  After moving backward by a predetermined distance, the operator operates the main transmission lever 84 to the “forward running position” and turns the handle 82 in the V3 direction. In the same manner as described above, a predicted course locus B is created by the control device 97 based on the operation amount R and the traveling speed V, and is superimposed on the video imaged by the main first imaging means 12, that is, the video image in front of the reaping unit 3. Then, the video is displayed on the display device 85 (see FIG. 14). Therefore, it is possible to perform the cutting operation while turning until the cutting width of the cutting unit 3 is full.

  When the farm reaches the end of the field, the above operation is repeated, and the cereal is harvested by an area where the combine can be turned sideways (in the direction V4 shown in FIG. 16). When the operating state P of the main speed change lever 84 is detected as the “forward path position” by the traveling state detection unit 92 with the combine facing the V4 direction, a predicted path path is created by the control device 97. Thus, the image is superimposed on the image of the second photographing means 13, that is, the image behind the aircraft, and the image is displayed on the display device 85.

  Further, if the conditions in the combine 1 are changed as shown in FIG. 10 during the cutting work performed in this way, the image displayed on the display device 85 by the control device 97 is automatically changed to the image of the portion that needs to be confirmed. . Therefore, the operator can perform complicated steering operations such as turning and corner cutting while confirming the display device 85 as appropriate, and the combine 1 can be smoothly moved on the field.

  During the cutting operation while traveling straight ahead, the weeding body 31a is photographed by the auxiliary first photographing means 11 from the right rear, so that the rightmost weeding body 31a is always located on the right side of the uncut grain culm, It becomes easy to recognize the rightmost grain candy as a row. Therefore, the cutting work is improved. Also, in the case of a deformed field where the ridge is bent, an appropriate traveling direction is indicated, so that the cutting operation can be easily performed as described above.

  In addition, when the harvesting operation is performed near the water channel using the combine 1 including the bundling device 73 and the three-dimensional discharge device 74, an image photographed by the second photographing means 13 by the display device switching means 95, that is, the rear of the fuselage The video is set to be displayed on the display device 85. After that, the shooting direction of the second shooting means 13 is adjusted by the support member of the second shooting means 13 so that the waste discharged from the apparatus is shot. As a result, it is possible to easily confirm whether the bundle of excretions discharged from the three-dimensional discharge device 74 to the field has not entered the water channel or the like or has been appropriately discharged to the field (FIG. 15). Refer to the left screen).

  As described above, the combine 1 according to the embodiment of the present invention includes the traveling unit 2, the cutting unit 3 disposed in front of the traveling unit 2, and the front of the traveling unit 2 behind the cutting unit 3. And a first photographing unit (auxiliary first photographing unit 11, main first photographing unit 12) for photographing the front of the driving unit 8, and the first photographing unit. A display device 85 for displaying the video imaged by the operator, the display device 85 being near the handle 82 as the steering operation means of the driving unit 8 and for the operator sitting on the seat of the driving unit 8 It arrange | positions in the vicinity of the straight line which connects the head H and the weeding body 31a arrange | positioned at the rightmost side in the said cutting part 3. FIG.

  By configuring in this way, the predicted course trajectory B that the combine 1 travels during the cutting operation is superimposed on the video imaged by the first imaging means 12, and the video on which the predicted course trajectory B is superimposed is displayed on the display device. 85, it is possible to grasp the predicted course trajectory B and the front situation at the same time, easily determine an appropriate course according to the situation of the front culm, and perform the cutting operation. Therefore, the cutting range when the traveling direction is changed can be easily recognized, and even an unskilled worker can perform the steering operation appropriately and easily, and the cutting operation can be easily performed. Moreover, it is possible to determine the course so that the maximum width is cut, or to set the path so that there is no uncut portion. It is possible to efficiently perform the mowing work.

  The combine 1 which concerns on one Embodiment of this invention is further provided with the control apparatus 97 which produces the prediction course locus | trajectory B based on the operation amount R of the handle | steering-wheel 82 of the said driving | operation part 8, The said control apparatus 97 is the said prediction. The course B is superimposed on the video imaged by the first imaging means, and the video on which the predicted course path B is superimposed is displayed on the display device 85.

  By configuring in this way, for example, when performing operations such as cutting a bent ridgeline or turning around at the end of the field, it is easy to determine the amount of steering operation to proceed to the prediction region C. It is possible to make a judgment, and even if a steering operation is performed such that the user steps down and proceeds to the prediction region C, a warning is issued. Accordingly, the course can be easily changed by an appropriate steering operation, the cutting operation can be easily performed, the stepping over of the cereal can be prevented, and the uncut portion can be reduced.

  The combine 1 which concerns on one Embodiment of this invention is further provided with the 2nd imaging | photography means 13 which image | photographs the back of a body, and the driving | running | working state detection means 92 which detects a driving | running state, The said control apparatus 97 is the said driving | running | working state. When the detection means 92 detects that the traveling state is the reverse movement state, a predicted path trajectory B in the reverse movement direction is created based on the operation amount R of the handle 82 of the driving unit 8, and the second photographing means 13 Is superimposed on the image captured by the above-described method, and the image on which the predicted course trajectory B is superimposed is displayed on the display device 85.

  By comprising in this way, when going backwards to cut back at the corner of the field, etc., the rear image and the predicted course trajectory B are displayed, so there are uncut grain culms, straws, etc. in the backward direction Even in such a case, it is possible to easily predict how much the vehicle will reversely come into contact with or step on these components, and it is possible to perform the reverse traveling with peace of mind. Therefore, even an unskilled worker can perform the steering operation appropriately and easily, and the cutting operation can be easily performed.

DESCRIPTION OF SYMBOLS 1 Combine 2 Traveling part 3 Cutting part 8 Driving part 11 Auxiliary 1st imaging | photography means 12 Main 1st imaging | photography means 13 2nd imaging | photography means 31a Weeding body 82 Handle 85 Display apparatus 92 Running condition detection means 97 Control apparatus B Predicted course locus H Head Part R Operation amount

Claims (3)

A combine comprising: a traveling unit; a cutting unit disposed in front of the traveling unit; and a driving unit disposed on the front of the traveling unit behind the cutting unit,
An imaging unit that images the front of the driving unit or the rear of the aircraft, and a display device that displays an image captured by the imaging unit,
The combine is characterized in that the display device is arranged at the upper right of the front column arranged in front of the seat of the driver.   The combine according to claim 1, wherein the display device is capable of displaying an image obtained by photographing the periphery of the front portion of the cutting unit.   The combine according to claim 1 or 2, further comprising display device switching means capable of switching an image displayed on the display device.

Images