WO2019003728A1 - Harvesting machine - Google Patents

Abstract

Provided are: a harvesting part 4 which is disposed on the front of a machine body, and harvests agricultural crops; and a plurality of crop sensors 31, 32, 33, 34 which are arranged on the harvesting part 4 with spaces therebetween in the left/right direction, and detect the presence of a crop upon contact with the same. The present invention may also provide: a harvesting width detector which detects, from among workable widths at which the harvesting part 4 can carry out harvesting work, a harvesting width corresponding to a crop group actually being harvested; a travel speed changer which changes the travel speed of the machine body; and a speed controller which operates the travel speed changer at a lower speed as the harvesting width increases, and operates the travel speed changer at a higher speed as the harvesting width decreases, on the basis of the detection result from the harvesting width detector.

Description

Harvester

TECHNICAL FIELD The present invention relates to a harvester that harvests an established cereal straw.

In a common-type combine, which is an example of a harvester, cereal grains in the field are cut away by a reaper (corresponding to a harvester), and the reaped cereals are supplied from a reaper to a transport unit, and the transport unit It is supplied to the threshing device.

In the ordinary type combine as described above, in Patent Document 1, the transport unit is connected to the rear portion of the reaper, and the cereal crop sensor that detects the presence of the cereal crop on the right and left of the entrance of the transport unit. Is equipped.

As a result, when the right cereal grain sensor is in the detection state, it can be determined that the cereal grain cut off by the right part of the harvesting unit is supplied to the inlet of the transport unit. When the left forge sensor is in the detection state, it can be determined that the forage cut by the left part of the reaper is being supplied to the inlet of the transfer part.

In addition, for example, in rice farming, a field management system has been proposed to improve harvesting by combining various field work data collected by rice planters (or planters), tractors and combines with GPS functions. .

In Patent Document 2 disclosed as the above-mentioned field management system, one field is divided into a large number of small areas, and the planting data (seeding data) of seedlings by a rice planter (seeding machine) corresponding to each area of the field ) By collecting and accumulating field work data such as tillage data by tractor, harvest data (harvest amount and taste) by combine, planting (seeding) of seedlings by rice planter (seeding machine) in the next fiscal year, tractor Improvement of tillage by

JP, 2017-46642, A (refer to paragraph number 0012 and 0051) JP, 2017-68533, A

The present invention aims to improve the performance of various tasks.
Specifically, as disclosed in Patent Document 1, when detecting the harvest condition of the harvest area, it has been proposed to effectively utilize the detected harvest condition of the harvest area.
An object of the present invention is to effectively utilize the detected harvest condition of the harvest section when detecting the harvest condition of the harvest section in a harvester.

Moreover, in the field management system as described above, in order to improve the performance, it is necessary to improve the accuracy of field work data by a rice transplanter (seeding machine), a tractor and a combine.
An object of the present invention is to improve the accuracy of field work data of a harvester by focusing on a harvester such as a combine in a field management system.

The harvester according to an embodiment of the present invention is
A harvesting section, located at the front of the fuselage, for harvesting crops in the field,
A plurality of crop sensors are provided in the harvest area at intervals in the left-right direction and in contact with the crops to detect the presence of crops.

In the harvester, since the harvest section at the front of the airframe has a large width (left and right width), when a plurality of crop sensors are provided in the harvest section as in the present invention, which crop sensor detects a crop On the basis of the workable widths that can be harvested by the harvester, a harvest width corresponding to a crop group harvested by an actual harvest operation can be detected.
For example, if the harvest width is large, it can be judged that many crops are introduced to the harvest part, and if the harvest width is small, it can be judged that there are few crops to be introduced to the harvest part.

According to the present invention, based on which crop sensor detects a crop, it is possible to detect in which part of the harvest area the crop is introduced within the width range of the harvest area. For example, determine whether the crop has been introduced to the right side of the harvest area, that the crop has been introduced to the left side of the harvest area, or that the crop has been introduced to the left and right center of the harvest area. Can.

As described above, according to the present invention, the harvest width, which part of the harvest section the crop is introduced into, and the like are detected, and these detection data are added to the field operation data to obtain the harvester. The precision of field work data can be improved.

In the present invention,
A conveying unit for conveying a crop from the harvesting unit to the airframe side is connected to the rear of the harvesting unit;
In the harvest section,
A lateral transport body that is rotationally driven about an axis in the left-right direction so as to transport the crop toward the inlet of the transport portion along the lateral direction of the harvest section;
And a frame body rotatably supporting the lateral transport body and connected to the transport portion.
Preferably, the crop sensor is provided on the frame body.

In the harvester, the transport unit may be connected to the rear of the harvest unit, and crops in the field may be harvested and collected by the harvest unit and transported from the transport unit to the airframe side. In this case, the crop section is provided with a frame body and a lateral transport body, and the harvested crop is transported laterally in the lateral transport body of the harvest section, collected at the entrance of the transport section, and transported by the transport section. Are transported to

Since the harvested crop is transported in contact with the lateral transport of the harvester and at the same time it contacts the frame of the harvester, as in the present invention, a crop sensor is provided on the frame of the harvester This can increase the certainty of crop detection by the crop sensor.
According to the present invention, provision of the crop sensor on the frame body of the harvester, which is the existing structure, is advantageous in terms of simplifying the support structure of the crop sensor.

In the present invention,
It is preferable that the crop sensor be provided at a portion of the frame body located below the lateral transport body.

Since the harvested crop is likely to come into contact with the lower part of the frame body of the harvester, as in the present invention, the crop sensor is located on the lower side of the lateral carrier in the frame body of the harvester. To further enhance the certainty of detection of the crop by the crop sensor.

In the present invention,
Preferably, the crop sensor is provided at the bottom of the frame body.

According to the present invention, by providing the crop sensor at the bottom of the frame portion of the harvester, the cropped crop can be cropped by the crop sensor while the harvested crop is likely to contact the lower portion of the frame body of the harvester. The certainty of detection can be further enhanced.

In the present invention,
It is preferable that the crop sensor be disposed at a position on the outer peripheral side of the rotation trajectory of the lateral transport body.

According to the present invention, since the lateral transport body at the harvest section does not interfere with the crop sensor even when driven to rotate, breakage of the crop sensor and breakage of the lateral transport body at the harvest section can be avoided without difficulty.

In the present invention,
An opening is formed in the frame body,
It is preferable that the detection unit of the crop sensor is provided in a state of protruding from the opening, and is configured to swing in contact with the crop.

Some contact type sensors include a main body portion and a detection portion pivotally supported by the main body portion.
According to the present invention, the main body portion of the crop sensor can be protected by the frame body by projecting the detection portion of the crop sensor from the opening of the frame body and detecting the crop by the detection portion of the crop sensor. It is advantageous in terms of the durability of the crop sensor.

In the present invention,
It is preferable that a gap filling member be provided to fill the gap between the detection unit and the opening.

According to the present invention, when the detection unit of the crop sensor swings in a state of protruding from the opening of the frame, according to the present invention, the gap between the detection unit of the crop sensor and the opening of the frame is filled by the gap filling member. Therefore, it is possible to suppress the situation where the crop leaks through the above-mentioned gap.

In the present invention,
A wall portion extending downward is provided on an outer peripheral portion of a portion protruding from the opening portion in the detection portion, and a portion protruding from the opening portion in the detection portion is formed in a box shape by the wall portion Is preferable.

According to the present invention, in the crop sensor, the portion protruding from the opening in the detection unit is formed in a box shape, whereby the strength of the detection unit of the crop sensor can be improved.
When the detection part of the crop sensor protrudes from the opening of the frame body, according to the present invention, even if a gap is generated between the detection part of the crop sensor and the opening of the frame body, the gap is narrowed by the wall Therefore, the situation where the crop leaks through the above-mentioned gap can be suppressed.

In the present invention,
In the detection portion, there are an upper stopper portion that determines the upper swing limit of the detection portion by hitting the frame body, and a lower stopper portion that determines the lower swing limit of the detection portion by hitting the frame body. It is preferable to be provided.

According to the present invention, when the crop introduced into the harvesting unit comes into contact with the detection unit of the crop sensor, the upper stopper portion and the cropping unit may be shaken upward or downward more than necessary. The lower stopper portion stops the detection portion of the crop sensor at the upper and lower swing limits, thereby avoiding breakage of the crop sensor due to excessive swing.

In the present invention,
A conveying unit for conveying a crop from the harvesting unit to the airframe side is connected to the rear of the harvesting unit;
It is preferable that the crop sensors are distributed and disposed at a position on the right side and a position on the left side in the harvest section with reference to the left and right centers of the inlet section of the transport section.

In the harvester, the transport unit may be connected to the rear of the harvest unit, and crops in the field may be harvested and collected by the harvest unit and transported from the transport unit to the airframe side.
According to the present invention, the crop sensor is provided at the right position and the left position with reference to the left and right center of the entrance of the transport section in the harvest section, and is disposed in a wide range along the left and right direction of the harvest section. Therefore, it is possible to appropriately detect the harvest width, which part of the harvest section the crop has been introduced into, and the like.

In the present invention,
It is preferable that the crop sensor is provided at a position on the right side with respect to the inlet, a position on the left with respect to the inlet, and a position on the front side of the inlet in the harvesting section.

According to the present invention, in the harvesting unit, the crop sensor is provided on the front side of the inlet of the transport unit in addition to the right and left positions with respect to the inlet of the transport unit, Since the sensors are arranged in a wide range along the lateral direction of the harvest area, it is possible to appropriately detect the harvest width and which part of the harvest area the crop is being introduced.

In the present invention,
The crop sensor provided on the front side of the inlet in the harvesting part is provided on the front side of the crop sensor provided on the right side and the left of the inlet in the harvesting part Is preferable.

When the harvested crop is transported in the lateral direction by the lateral transport body of the harvesting unit, collected at the entrance of the transport unit, and transported to the machine by the transport unit, the front side portion of the entrance of the transport unit The crops will be concentrated.

According to the present invention, the crop sensor provided on the front side of the entrance portion of the guide unit is placed slightly apart on the front side from the front side portion of the entrance portion of the transport unit.
As a result, even if crops are concentrated on the front side of the inlet of the transport unit, the crops are not retained by the crop sensor and develop into clogging of the crop, and the crops are collected smoothly at the inlet of the transport. It is transported to the machine side by the transport unit.

In the present invention,
The crop sensor provided at a position on the right side and a position on the left side with respect to the inlet portion in the harvest section is provided with a detection unit that contacts the crop and swings around an axial center in the front-rear direction It is suitable.

Some crop sensors include a detection unit that contacts a crop, and when the crop contacts the detection unit, the detection unit is swung by the crop to detect the presence of the crop.

According to the invention, when the harvested crop is transported laterally by the lateral transport of the harvester, according to the invention the detection of the crop sensors provided at the right and left positions with respect to the inlet of the transport. The portion swings in the left and right direction around the longitudinal center axis.
As a result, the detection unit of the crop sensor swings along the flow of conveyance of the crop, and the detection unit of the crop sensor does not interfere with the conveyance of the crop, and the detection unit of the crop sensor It does not develop into accumulation of crops or clogging of crops.

In the present invention,
It is preferable that the crop sensor provided on the front side of the inlet in the harvester be provided with a detector that contacts the crop and swings around an axial center in the left-right direction.

The crop harvested at the front portion of the inlet of the transport unit in the harvesting unit is transported to the rear side as it is and reaches the inlet of the transport unit.
According to the present invention, the detection unit of the crop sensor provided on the front side of the inlet of the transport unit swings in the front-rear direction around the axial center in the left-right direction.
As a result, the detection unit of the crop sensor swings along the flow of conveyance of the crop, and the detection unit of the crop sensor does not interfere with the conveyance of the crop, and the detection unit of the crop sensor It does not develop into accumulation of crops or clogging of crops.

The harvester according to an embodiment of the present invention is
A harvesting section provided at the front of the fuselage to harvest field crops,
A harvest width detection unit that detects a harvest width corresponding to a crop group harvested by an actual harvesting operation among workable widths that can be harvested by the harvesting unit;
A traveling transmission unit that changes the traveling speed of the aircraft;
Based on the detection result of the harvest width detection unit, the speed control unit operates the traveling transmission unit to the low speed side as the harvest width is larger, and operates the traveling transmission unit to the high speed side as the harvest width is smaller. And are equipped.

When the harvest width detection unit as in the present invention is provided, for example, if the harvest width is large, it can be determined that the number of crops introduced to the harvest unit is large. It can be determined that a large load is applied.
Conversely, if the harvest width is small, it can be determined that the amount of crop introduced to the harvest section is small, and it can be determined that the load applied to the processing apparatus, engine, etc. is small.

According to the present invention, as the harvest width is increased, the traveling speed of the airframe is automatically operated to the low speed side, the increase of the crop introduced into the harvest section is suppressed, and the load on the processing device or engine is increased. Harvesting is carried out stably.
As the harvest width becomes smaller, the traveling speed of the machine is automatically operated to the high speed side, the reduction of the crop introduced into the harvesting section is suppressed, and the processing device, the engine, etc. operate without waste.

As described above, according to the present invention, the traveling speed of the machine is automatically operated based on the detection result of the harvest width, whereby the processing apparatus, the engine, etc. operate without waste while suppressing the increase of the load. Thus, the working performance of the harvester can be improved.

In the present invention,
The crop width detection unit is provided with a crop sensor that contacts the crop to detect the presence of the crop;
Preferably, two or more of the crop sensors are provided in the harvest section at intervals in the left-right direction.

When the harvest width is detected by the harvest width detection unit, according to the present invention, the crop sensor is provided in the harvest unit to detect the presence of the crop, thereby directly detecting the crop introduced to the harvest unit. As a result, the detection accuracy of the harvest width can be enhanced.

According to the present invention, two or more crop sensors are provided in the harvest section at an interval in the left-right direction, so the crop sensors do not waste the presence or absence of crops in the range extending to the right and left of the harvest section. It can be detected.

In the present invention,
There is provided a transport unit connected to the rear of the harvester for transporting the harvested crop from the harvester to the machine side.
It is preferable that a harvest crop sensor be provided at the inlet of the transport unit for detecting the presence of a crop by contacting the harvested crop.

In the harvester, the transport unit may be connected to the rear of the harvest unit, and crops in the field may be harvested and collected by the harvest unit and transported from the transport unit to the airframe side.
According to the present invention, in addition to the harvest width detection unit, the harvest crop sensor is provided at the entrance of the transport unit. For example, although the crop is detected by the harvest width detection unit, the harvest crop sensor When it becomes a state where it does not detect, it can be judged that an abnormality has occurred in the crop width detection unit or crop crop sensor or the like. As described above, by providing the cropped crop sensor at the entrance of the transport unit in addition to the cropped width detection unit, it is possible to detect an abnormality.

In the present invention,
It is preferable that the cropped crop sensor be provided on the right side and the left side of the inlet of the transport unit.

In the harvester, when the transport unit as described above is provided, the crop introduced from the field to the right part of the harvest unit often passes through the right part of the harvest unit and the right part of the inlet of the transport unit. The crop introduced from the left to the left of the harvest section often passes through the left of the harvest section and the left portion of the entrance of the transport section.

According to the present invention, since the cropped crop sensors are provided on the right and left portions of the inlet of the transport unit, for example, although the crop is detected by the cropping width detector at the right of the harvester, If the crop crop sensor on the right does not detect a crop, it can be determined that an abnormality has occurred in the cropping width detection unit or crop crop sensor or the like. As described above, by providing the cropped crop sensors on the right and left portions of the entrance of the transport unit in addition to the cropping width detector, various abnormalities can be detected.

In the present invention,
The crop width detection unit is provided with a crop sensor that contacts the crop to detect the presence of the crop;
Three or more of the crop sensors are arranged at intervals in the left-right direction in the harvest section,
Preferably, at least one crop sensor located on the center side of the crop sensors is disposed on the front side of the inlet.

According to the present invention, in the harvesting unit, the crop sensor is provided on the front side of the inlet of the transport unit in addition to the right and left positions with respect to the inlet of the transport, the crop sensor It becomes a state arrange | positioned in a wide range along the left-right direction of a harvesting part, and the crop sensor can detect the presence or absence of a crop without a loss in the range over right part and left part of a harvesting part.

It is a whole side view of a combine. It is a cross-sectional top view of a reaper part and a conveyance part. It is a vertical side view of a mowing part and a conveyance part. It is a disassembled perspective view which shows the support structure of a crop sensor. It is a figure which shows the detection pattern of the cereal grain by a crop sensor. It is a figure which shows the detection pattern of the cereal grain by a crop sensor. FIG. 7 is a cross-sectional view of the vicinity of the crop sensor in the first state of the first embodiment. In 2nd form of Embodiment 1, it is sectional drawing of a crop sensor vicinity. In 3rd form of Embodiment 1, it is sectional drawing of a crop sensor vicinity. In 3rd form of Embodiment 1, it is sectional drawing of a crop sensor vicinity. In 3rd form of Embodiment 1, it is a perspective view of a clearance gap filling member. In 4th form of Embodiment 1, it is a front view of the cross section of a crop sensor vicinity. In 4th form of Embodiment 1, it is a side view of the cross section of a crop sensor vicinity. In 4th form of Embodiment 1, it is a disassembled perspective view of the vicinity of a crop sensor. In the 5th form of Embodiment 1, it is a top view which shows arrangement | positioning of a crop sensor. In the 5th form of Embodiment 1, it is a figure which shows the detection pattern of a grain meal by a crop sensor. In 7th form of Embodiment 1, it is a figure which shows the detection state of a crop sensor, and a non-detection state. FIG. 13 is a conceptual diagram showing an association state between the control device and each part in the second embodiment.

FIGS. 1 to 18 show a common type combine for rice, which is an example of a harvester.
1 to 18, F indicates the “forward direction” of the airframe 1, B indicates the “rearward direction” of the airframe 1, U indicates the “upward direction” of the airframe 1, and D indicates the “airflow direction of the airframe 1. "Downward" is shown. R indicates the “right direction” of the airframe 1 and L indicates the “left direction” of the airframe 1.

(Overall configuration of combine)
As shown in FIG. 1, an airframe 1, which is an airframe, is supported by right and left crawler-type traveling devices 2, and the transport unit 3 is supported so as to be able to swing vertically in the front of the airframe 1. It is done. A reaper 4 (corresponding to a harvester) is provided, and a transport unit 3 is connected to the rear of the reaper 4.

As shown in FIG. 1, a driving cabin 5 containing an operating unit is supported on the right of the front of the machine 1, a threshing device 6 is supported on the left of the machine 1, and the right of the machine 1 is A gren tank 7 and a grain discharging device 8 are supported.

As shown in FIG. 1, as the airframe 1 advances, grain reeds (corresponding to crops) in the field are cut away by the reaper 4 and the cuts away are threshed from the reaper 4 through the conveying portion 3 It is supplied to the device 6. In the threshing device 6, the cereal grains are subjected to threshing treatment, the recovered grains are supplied to the gren tank 7, and the waste straw is discharged from the rear of the threshing device 6. When the grain tank 7 is full of grains, the grain of the grain tank 7 is discharged by the grain discharging device 8 to another transport vehicle (not shown) or the like.

(Control function of combine)
In this combine, a position detection system (not shown) for detecting the position of the airframe 1 and the orientation of the airframe 1, and a yield sensor (not shown) for detecting the amount of grains collected by the threshing device 6 It is equipped.

The position detection system is a satellite navigation system (GNSS: Global Navigation Satellite System), and a representative example is GPS (Global Positioning System). The harvest amount sensor continuously detects the weight of grain recovered per unit time.

In this combine, in addition to the above-mentioned position detection system and harvest amount sensor, of the workable widths that can be reaped by the reaper 4, the reaping corresponding to a group of cereal crops reaped by an actual reaping operation It has a function of detecting the width W1 (harvest width) (see FIGS. 5 and 6) by the crop sensors 31, 32, 33, 34 (see FIG. 2).
Thereby, when one field is divided into a large number of small areas, the detection value of the yield sensor of each area of the field and the cutting width W1 of each area of the field can be collected and accumulated.

(Configuration of reaper)
As shown in FIGS. 1, 2 and 3, the reaper 4 is provided with a frame body 9 as a framework, and the frame body 9 is a bottom 10, a lateral side 11 connected to the right and left of the bottom 10, a bottom 10 and a rear side 12 connected to the rear of the lateral side 11.

As shown in FIGS. 2 and 3, the front portion (inlet portion 3a) of the transport unit 3 is connected to the rear side portion 12, and the transport unit 3 is connected to the rear portion of the reaper 4 There is. The transport unit 3 is offset and connected to the rear of the reaper 4 so that the left and right center CL2 of the inlet 3a of the transport unit 3 is located on the left side from the left and right center CL1 of the reaper 4.

As shown in FIG. 2 and FIG. 3, a hair clipper-type cutting device 13 is supported at the front of the bottom 10 along the left-right direction, and a divider 14 is connected to the front of the lateral side 11. As shown in FIG. 1, right and left arms 15 supported at the rear of the frame body 9 extend forward, and the reel 16 rotates around the horizontal axis P1 of the front of the arm 15 in the left-right direction. It is drivably supported.

As shown in FIGS. 1, 2, and 3, in the frame body 9, the lateral conveyance body 17 is supported by the lateral side portion 11 so as to be rotatable around an axis P 2 in the left-right direction. The lateral conveyance body 17 includes a cylindrical body 17a, a right spiral portion 17b and a left spiral portion 17c connected to the outer peripheral portion of the body 17a, and a bar-like scraping portion 17d.

As shown in FIG. 2, the right spiral portion 17 b of the lateral conveyance body 17 is located on the right side of the entrance portion 3 a of the conveyance portion 3, and the left spiral portion 17 c of the lateral conveyance body 17 is the entrance portion 3 a of the conveyance portion 3. Located on the left side of the The scraping portion 17 d of the lateral conveyance body 17 is located on the front side of the inlet 3 a of the conveyance portion 3.

As shown in FIGS. 1, 2 and 3, with the advancement of the airframe 1, the grain between the right and left dividers 14 is scraped into the lateral carrier 17 by the reel 16, while the strain of the grain is separated. The original is cut by the cutting device 13, and the cut grain is introduced between the lateral carrier 17 and the bottom 10 by the rotation of the lateral carrier 17.

As shown in FIG. 2, the grain scale introduced in the vicinity of the right spiral portion 17 b of the lateral conveyance body 17 is conveyed to the left by the right spiral portion 17 b of the lateral conveyance body 17, and the scraped portion 17 d of the lateral conveyance body 17 Is supplied to the inlet 3 a of the transport unit 3.
The grain introduced in the vicinity of the left spiral portion 17c of the horizontal transfer body 17 is transferred to the right by the left spiral portion 17c of the horizontal transfer body 17, and the entrance portion of the transfer portion 3 by the scraping portion 17d of the horizontal transfer body 17. It is supplied to 3a.
The cereal grains introduced in the vicinity of the scraping portion 17 d of the lateral transport body 17 are transported to the rear side by the scraping portion 17 d of the lateral transport body 17 and supplied to the inlet portion 3 a of the transport portion 3.

(Configuration of transport unit)
As shown in FIGS. 1, 2, and 3, the transport unit 3 includes a rectangular cylindrical support case 18 supported so as to be able to swing up and down in the front part of the machine body 1. Are connected to the rear side 12 of the reaper 4.

As shown in FIGS. 1, 2, and 3, the transport unit 3 includes a rotating body 19 driven to rotate around an axis P 3 in the left-right direction and a right and left wound around the rotating body 19 inside the support case 18. The transport chain 20 and the transport body 21 attached across the transport chain 20 are provided.

As shown in FIG. 2 and FIG. 3, as the rotating body 19 is rotationally driven, the transport body 21 moves toward the threshing device 6 along the bottom 18 a of the support case 18.
As described in (Configuration of reaper) in the preceding paragraph, when a reed is fed from the reaper 4 to the entrance 3a of the transport portion 3, the reed along the bottom 18a of the support case 18 by the transport 21. It is conveyed and supplied to the threshing device 6.

As shown in FIGS. 2 and 3, right and left crop crop sensors 22 and 23 are provided on the right and left portions of the inlet 3 a of the transport unit 3.
The cropped crop sensors 22, 23 are provided with arm-shaped detection portions 22a, 23a swingable back and forth around the axis P4 in the left-right direction, and the entrance portion of the transport portion 3 with respect to the transport chain 20 in plan view It is disposed on the side of the left and right center CL2 of 3a and is disposed on the front side of the rotary body 19 in a side view so as not to interfere with the rotation trajectory of the transport body 21.

As shown in FIG. 2 and FIG. 3, the grain gravel is supplied from the reaper 4 to the inlet 3 a of the conveyance part 3, and the grain meal contacts the detection parts 22 a and 23 a of the crop sensors 22 and 23, Harvested crop sensors 22, 23 detect the presence of cereal grits.

(Arrangement of crop sensors in the reaper)
As described in the above paragraph (arrangement of the reaper), in a state where the reed between the right and left dividers 14 is reaped and introduced to the reaping portion 4, the reed is brought into contact with the reaped rasp Four crop sensors 31, 32, 33, 34 are provided in the reaper 4 as described below to detect the presence of.

The cropping width W1 (harvest width) (see FIGS. 5 and 6) corresponding to the group of cereal crops that were actually cut by the reaping work, among the workable widths that can be reaped by the reaping unit 4, It can be detected by the sensors 31 to 34 (see below (Detection pattern of cereal grains by crop sensor)).

As shown in FIGS. 2 and 3, in the bottom portion 10 of the frame body 9, the front side of the right spiral portion 17 b of the lateral conveyance body 17 (on the reaper 4 (harvest)) The crop sensors 31, 32 are provided in the position of.
A crop sensor 34 is provided on the front side of the left spiral portion 17 c of the horizontal conveyance body 17 (corresponding to the position on the left side with respect to the inlet 3 a of the conveyance portion 3 in the reaper 4 (harvest)).
A crop sensor 33 is provided on the front side of the scraping portion 17 d of the horizontal conveyance body 17 (corresponding to the position on the front side of the entrance 3 a of the conveyance unit 3 in the reaper 4 (harvest unit)).

As a result, as shown in FIG. 2 and FIG. 3, the crop sensors 31 to 34 are provided in the reaper 4 (harvest) at intervals in the left-right direction, and in the reaper 4 (harvest) The left and right center positions of the entrance portion 3a of the transport unit 3 are distributed to the right position and the left position, and are positioned below the horizontal transport body 17 in the frame body 9 It is in the state of being prepared for the part.

As shown in FIG. 2, the crop sensors 31 and 32 overlap the rotation trajectory of the right spiral portion 17 b of the lateral transport body 17 in plan view, and the crop sensor 34 is a left spiral portion 17 c of the lateral transport body 17 in plan view. Overlapping the rotation trajectory of

As shown in FIG. 3, the crop sensors 31, 32 and 34 are disposed on the front side (peripheral side) of the rotation trajectory of the right spiral portion 17 b and the left spiral portion 17 c of the lateral conveyance body 17 in side view. It does not interfere with the right spiral portion 17 b and the left spiral portion 17 c of the body 17.
As shown in FIG. 2, since the crop sensors 31, 32, 34 and the scraping portion 17 d of the lateral transport body 17 are different in position in the left-right direction, the crop sensors 31, 32, 34 scrape the lateral transport body 17. It does not interfere with the insertion part 17d.

As shown in FIGS. 2 and 3, the crop sensors 33 (corresponding to the crop sensors provided on the front side of the entrance 3 a of the transport unit 3 in the reaper 4 (harvest)) The cropping unit 4 (harvesting unit) is provided on the front side of the crop sensor 4 (corresponding to a crop sensor provided on the right side and the left side with respect to the inlet 3a of the transport unit 3).

As shown in FIGS. 2 and 3, the crop sensor 33 is disposed on the front side (peripheral side) of the rotation trajectory of the scraping portion 17 d of the lateral conveyance body 17, and the crop sensor 33 is at the entrance 3 a of the conveyance portion 3 in plan view. It is disposed slightly to the right of the left and right center CL2 (crop sensors 31, 32) (the left and right center CL1 of the reaper 4).

As shown in FIG. 2, since the crop sensor 33 and the right spiral portion 17 b and the left spiral portion 17 c of the lateral conveyance body 17 are different in position in the left-right direction, the crop sensor 33 is a right spiral portion 17 b of the lateral conveyance body 17. And do not interfere with the left spiral portion 17c.

(Structure of crop sensor)
As shown in FIG. 4, the crop sensors 31 to 34 include a main body 24 and a detection unit 25 supported so as to be pivotable around an axis P5 of the main body 24. The detection unit 25 is in the form of an arm extending from the main body 24 and is biased upward (in the non-detection state) by a spring (not shown) installed in the main body 24.

As shown in FIG. 4, in the frame body 9, an opening 10 a is formed in the bottom 10, and a clearance filling member 26 such as a soft rubber plate and a pressing plate 27 are provided. A T-shaped slit 26 a is formed in the gap filling member 26, and an opening 27 a is formed in the pressing plate 27.

As shown in FIG. 4, the gap filling member 26 is in contact with the lower surface of the bottom portion 10 so that the slit 26 a of the gap filling member 26 is positioned at the opening 10 a of the bottom portion 10. The pressing plate 27 is abutted against the lower surface of the gap filling member 26 so that the opening 27a of the pressing plate 27 is positioned at the slit 26a of the gap filling member 26 and the opening 10a of the bottom 10, and the gap filling member 26 is pressed It is fixed to the lower surface of the bottom 10 by a plate 27.

As shown in FIG. 4, the main body 24 of the crop sensors 31 to 34 is connected to the lower surface of the presser plate 27, and the detectors 25 of the crop sensors 31 to 34 fill the opening 27 a of the presser plate 27. It projects obliquely upward through the slit 26 a of the member 26 and the opening 10 a of the bottom 10.

The state shown in FIG. 3 is a state in which the grain scale is not in contact with the detection unit 25 of the crop sensors 31 to 34, and the crop sensors 31 to 34 do not detect the grain scale. In this state, since the gap between the detection portion 25 of the crop sensors 31 to 34 and the opening 10 a of the bottom 10 is filled by the gap filling member 26, the grain passes through the opening 10 a of the bottom 10 There is no leak.

In the state shown in FIG. 3, when the cereal grains contact the detection parts 25 of the crop sensors 31 to 34, the detection parts 25 of the crop sensors 31 to 34 are pushed downward by the cereal grains, and the slits 26a of the gap filling member 26 The crop sensors 31 to 34 are in a state of detecting a grain scale so as to enter into the

In a state where the crop sensors 31 to 34 detect grain defects, the detection units 25 of the crop sensors 31 to 34 close the opening 10 a of the bottom 10, and the detection units 25 of the crop sensors 31 to 34 and the bottom 10 The upper surface is substantially flush with the upper surface. As a result, the flow of cereal grains is not inhibited by the detection unit 25 of the crop sensors 31 to 34, and the grains do not leak through the opening 10 a of the bottom 10.

As shown in FIGS. 2 to 4, in the crop sensors 31 and 32, the axial center P5 of the main body 24 of the crop sensors 31 and 32 points in the front-rear direction, and the detection unit 25 of the crop sensors 31 and 32 It is extended above the left and right center CL 1 side of the reaper 4 (the inlet 3 a side of the transport unit 3).

As shown in FIGS. 2 to 4, in the crop sensor 33, the axial center P5 of the main body 24 of the crop sensor 33 is directed in the left-right direction, and the detection unit 25 of the crop sensor 33 is diagonally It is extended to the upper side of 3a side).

As shown in FIGS. 2 to 4, in the crop sensor 34, the axial center P5 of the main body 24 of the crop sensor 34 is directed in the front-rear direction, and the detection unit 25 of the crop sensor 34 It is extended above the CL1 side (the inlet 3a side of the transport unit 3).

(Detection of grains by crop sensor and cropped crop sensor)
As shown in FIG. 2, when the division between the right and left dividers 14 is divided into four areas A1, A2, A3 and A4, the crop sensor 31 corresponds to the area A1, and the crop sensor 32 corresponds to the area A2. The crop sensor 33 corresponds to the area A3, and the crop sensor 34 corresponds to the area A4.

As shown in FIG. 2, when the cereal grits are introduced from the area A 1, the cereal grits are transported to the left by the right spiral portion 17 b of the lateral transport body 17 and the scraping portions 17 d of the lateral transport body 17 It is supplied to the inlet part 3a, and the grain scale contacts the crop sensor 31, and the crop sensor 31 detects the grain scale. In this case, since the grain scale contacts the crop sensor 31 and then the crop sensor 32, the crop sensor 32 also detects grain scale.

As shown in FIG. 2, when the cereal grits are introduced from the area A 2, the cereal grits are transported to the left by the right spiral portion 17 b of the lateral transport body 17, and the scraping portions 17 d of the lateral transport body 17 It is supplied to the inlet portion 3a, and the grain scale contacts the crop sensor 32, and the crop sensor 32 detects the grain scale.

As shown in FIG. 2, when the cereal grits are introduced from the area A 3, the cereal grits are transported to the rear side by the scraping portion 17 d of the lateral transport body 17 and come into contact with the crop sensor 33. It is supplied to the inlet 3a, and the crop sensor 33 detects cereal grains.

As shown in FIG. 2, when the cereal grits are introduced from the area A 4, the cereal grits are transported to the right by the left spiral portion 17 c of the lateral transport body 17, and the scraping portions 17 d of the lateral transport body 17 It is supplied to the inlet 3a, and the grain scale contacts the crop sensor 34, and the crop sensor 34 detects the grain scale.

As shown in FIG. 2, since the crop sensors 31, 32 and 34 overlap with the rotation loci of the right spiral portion 17b and the left spiral portion 17c of the horizontal conveyance body 17 in plan view, the right spiral of the horizontal conveyance body 17 The rotation of the portion 17b and the left spiral portion 17c causes the cereal grains to be pressed against the crop sensors 31, 32, 34, and the cereal grains detected by the crop sensors 31, 32, 34 become highly reliable.

Similarly, as shown in FIG. 2, since the crop sensor 33 is located on the slightly lateral side of the rotation trajectory of the scraping portion 17 d of the lateral transport body 17 in plan view, the crop sensor 17 of the lateral transport body 17 By turning, the grain scale is pressed against the crop sensor 33, and detection of the grain scale by the crop sensor 33 is highly reliable.

As shown in FIG.2 and FIG.3, when the cereal grain introduced from area | region A1, A2, A4 is conveyed by the right spiral part 17b (left spiral part 17c) of the horizontal conveyance body 17 to the left side (right side), Since the crop sensor 33 is located on the front side of the crop sensors 31, 32, 34, the grain can not contact the crop sensor 33, and the crop sensor 33 does not detect the grain.

As shown in FIG. 2 and FIG. 3, in the right and left cropped crop sensors 22, 23, when the cereal straw is introduced from the areas A1 and A2, the right harvested crop sensor 22 detects the cereal flour, The crop crop sensor 23 on the left is in a state of detecting or not detecting a grain scale.
When a grain scale is introduced from the area A3, at least one of the right and left crop sensor 22 and 23 detects the grain scale.
When a grain scale is introduced from the area A4, the right crop crop sensor 22 is in a state of detecting or non-detecting a grain scale, and the left crop crop sensor 23 is in a state of detecting a grain crop.

(Detection pattern of cereal grains by crop sensor)
The detection patterns B1 to B9 of grain scale by crop sensors 31 to 34 and harvest crop sensors 22 and 23 and the cutting width W1 which is the lateral width of the grain scale introduced from the field to the harvesting section 4 will be described as follows: Do.
As shown in the detection pattern B1 of FIG. 5, when the crop sensors 31 to 34 are in the detection state ON and the right and left harvest crop sensors 22 and 23 are in the detection state ON, the cutting width W1 spans the areas A1 to A4 and It can be judged. In this case, when the right or left crop sensor 22 or 23 is in the non-detection state OFF, it can be determined that an abnormality has occurred.

As shown in the detection pattern B2 in FIG. 5, the crop sensors 31 to 33 are in the detection state ON, the crop sensor 34 is in the non detection state OFF, the right crop crop sensor 22 is in the detection state ON, and the left crop crop sensor 23 is in the detection state When the ON state or the non-detection state is OFF, it can be judged that the cutting width W1 is a state extending over the regions A1 to A3. In this case, when the right cropped crop sensor 22 is in the non-detection state OFF, it can be determined that an abnormality has occurred.

As shown in the detection pattern B3 of FIG. 5, when the crop sensor 31 is in the non-detection state OFF, the crop sensors 32 to 34 are in the detection state ON, and the right and left harvest crop sensors 22 and 23 are in the detection state ON, the cutting width W1 It can be determined that the state is over the areas A2 to A4. In this case, when the right or left crop sensor 22 or 23 is in the non-detection state OFF, it can be determined that an abnormality has occurred.

As shown in detection pattern B4 in FIG. 5, the crop sensors 31, 32 are in the detection state ON, the crop sensors 33, 34 are in the non detection state OFF, the right crop crop sensor 22 is in the detection state ON, and the left crop crop sensor 23 is When the detection state is ON or the non-detection state is OFF, it can be determined that the cutting width W1 is a state extending over the areas A1 and A2. In this case, when the right cropped crop sensor 22 is in the non-detection state OFF, it can be determined that an abnormality has occurred.

As shown in the detection pattern B5 in FIG. 5, the crop sensors 31, 34 are in the non-detection state OFF, the crop sensors 32, 33 are in the detection state ON, the right crop crop sensor 22 is in the detection state ON, and the left crop crop sensor 23 is When the detection state is ON or the non-detection state is OFF, it can be determined that the cutting width W1 is a state extending over the areas A2 and A3. In this case, when the right cropped crop sensor 22 is in the non-detection state OFF, it can be determined that an abnormality has occurred.

As shown in the detection pattern B6 of FIG. 5, the crop sensors 31, 32 are in the non-detection state OFF, the crop sensors 33, 34 are in the detection state ON, and the right crop crop sensor 22 is in the detection state ON or non-detection state OFF, left When the cropped crop sensor 23 is in the detection state ON, it can be determined that the cutting width W1 is in the range of the areas A3 and A4. In this case, when the left crop sensor 23 is in the non-detection state OFF, it can be determined that an abnormality has occurred.

As shown in detection pattern B7 in FIG. 6, the crop sensors 31, 33, 34 are in the non detection state OFF, the crop sensor 32 is in the detection state ON, the right crop crop sensor 22 is in the detection state ON, and the left crop crop sensor 23 is When the detection state ON or the non-detection state OFF, the cutting width W1 can be determined to be the state of the area A2. In this case, when the right cropped crop sensor 22 is in the non-detection state OFF, it can be determined that an abnormality has occurred.

As shown in the detection pattern B8 in FIG. 6, the crop sensors 31, 32, 34 are in the non-detection state OFF, the crop sensor 33 is in the detection state ON, the right crop crop sensor 22 is in the detection state ON or non-detection state OFF, left When the cropped crop sensor 23 is in the detection state ON or in the non-detection state OFF, the cutting width W1 can be determined as the state of the area A3. In this case, when both of the right and left crop sensor 22 and 23 are in the non-detection state OFF, it can be determined that an abnormality has occurred.

As shown in the detection pattern B9 of FIG. 6, the crop sensors 31 to 33 are in the non detection state OFF, the crop sensor 34 is in the detection state ON, and the right crop crop sensor 22 is in the detection state ON or non detection state OFF, the left crop When the sensor 23 is in the detection state ON, the cutting width W1 can be determined to be the state of the area A4. In this case, when the left crop sensor 23 is in the non-detection state OFF, it can be determined that an abnormality has occurred.

First Embodiment
Hereinafter, various configuration examples of the crop sensor will be described as the first embodiment.

First Embodiment of First Embodiment
The structure relating to the crop sensors 31 to 34 may be configured as shown in FIG.
As shown in FIG. 7, the slit 26 a of the gap filling member 26 is eliminated, and the gap filling member 26 is provided with the opening 26 b and the bellows portion 26 c.

As shown in FIG. 7, the detection units 25 of the crop sensors 31 to 34 project upward through the opening 26 b of the gap filling member 26, and the lower side and the bottom of the detection units 25 of the crop sensors 31 to 34 The space between the opening 10 a and the opening 10 a is covered by the bellows 26 c of the gap filling member 26. As the detection members 25 of the crop sensors 31 to 34 swing downward due to the contact of the grain scale, the bellows portion 26c of the gap filling member 26 is compressed.

Second Embodiment of First Embodiment
The structure relating to the crop sensors 31 to 34 may be configured as shown in FIG.
The gap filling member 26 shown in FIGS. 4 and 7 is eliminated, and as shown in FIG. 8, the metal or hard rubber gap filling member 28 is connected to the detection unit 25 of the crop sensors 31 to 34. There is.

As shown in FIG. 8, in a state where the crop sensors 31 to 34 do not detect a grain scale, the detection units 25 of the crop sensors 31 to 34 project upward through the opening 10 a of the bottom portion 10. At this time, the gap filling member 28 is located on the upper side together with the detection units 25 of the crop sensors 31 to 34, and the gap filling member 28 fills the opening 10 a of the bottom 10.

As shown in FIG. 8, when the detection portion 25 of the crop sensors 31 to 34 swings downward due to the contact of the grain crucible, the gap filling member 28 separates downward from the opening 10 a of the bottom portion 10. At this time, the tips of the detection units 25 of the crop sensors 31 to 34 hit the bottom 10, and the openings 10a of the bottom 10 are filled with the detection units 25 of the crop sensors 31 to 34.

Third Embodiment of First Embodiment
The structures relating to the crop sensors 31 to 34 may be configured as shown in FIGS.
The gap filling member 26 shown in FIGS. 4 and 7 is eliminated, and as shown in FIG. 11, gap filling members 29, 30 such as a soft rubber plate other than the gap filling member 26 are provided.

As shown in FIG. 11, in the gap filling member 29, a channel-like slit 29a is formed in a plan view, and a cover portion 29b movable in the vertical direction is formed. An opening 30 a is opened in the gap filling member 30, and two slits 30 b are formed from the opening 30 a to form a cover 30 c which is vertically movable.

As shown in FIGS. 9 and 11, the gap filling member 29 is disposed on the upper side, the gap filling member 30 is disposed on the lower side, and the gap filling members 29 and 30 are fixed to the lower surface of the bottom 10 by the pressing plate 27. ing.

As shown in FIGS. 9 and 11, the detection unit 25 of the crop sensors 31 to 34 protrudes upward through the opening 30 a of the gap filling member 30, and the crop sensors 31 to 34 do not detect a grain scale In the state, the cover portion 29b of the gap filling member 29 is pushed upward.

As shown in FIGS. 9 and 11, the opening 30a of the gap filling member 30 is covered by the cover 29b of the gap filling member 29, and the cover 29b of the gap filling member 29 is pushed up to fill the gap. The opening formed in the member 29 is filled with the cover 30 c of the gap filling member 30.

As shown in FIG. 10 and FIG. 11, when the detection unit 25 of the crop sensors 31 to 34 swings downward due to the contact of the grain crucible, the detection unit 25 of the crop sensors 31 to 34 covers the cover 30 c of the gap filling member 30. The cover portion 29b of the gap filling member 29 moves downward so as to follow the detection portion 25 of the crop sensors 31 to 34.

As shown in FIGS. 10 and 11, when the cover 30 c of the gap filling member 30 is pushed down, the opening that extends from the opening 30 a to the cover 30 c of the gap filling member 30 is the crop sensors 31 to 34. And the cover portion 29 b of the gap filling member 29.

Fourth Embodiment of the First Embodiment
The structures relating to the crop sensors 31 to 34 may be configured as shown in FIGS. 12, 13 and 14.

The structures of the crop sensors 31 to 34 will be described as follows.
In the detection unit 25 of the crop sensors 31 to 34, an upper part 25a, three wall parts 25b, 25c, 25d extending downward from the outer peripheral part of the upper part 25a, and an upper part extending laterally from the lower part of the wall 25b. A stopper portion 25e, a lower stopper portion 25f extending laterally from the lower portion of the wall portions 25b, 25c, and a middle wall portion 25g fixed downward to the middle portion of the upper portion 25a are provided.

The detection unit 25 of the crop sensors 31 to 34 is formed by bending a plate material, and is formed in a box shape whose lower side in a rectangular shape is opened in a plan view by the upper portion 25a and the wall portions 25b, 25c, 25d (A portion of the detection unit 25 that protrudes from the opening 10a corresponds to a state in which the wall portions 25b, 25c, and 25d form a box shape).

The detection shaft 24 a of the main body 24 is inserted into an opening (not shown) opened in the wall 25 b and the middle wall 25 g of the detection unit 25 of the crop sensors 31 to 34, and the detection 25 is the main body 24. It is connected to the detection axis 24a of. When the detection shaft 24 a of the main body 24 of the crop sensors 31 to 34 is rotated, the detection unit 25 is swingably supported around the axis P 5 of the main body 24, and the spring installed in the main body 24 ( The detection unit 25 is biased to the upper side (non-detection state side) by the not shown).

A gap filling member 35 such as a soft rubber plate and a pressure plate 36 are provided. A rectangular opening portion 35a is opened in the gap filling member 35, and a long extension portion 35b and a short extension portion 35c are formed on one and the other of the short sides of the opening portion 35a.

The holding plate 36 is formed of a metal plate and has a rectangular opening 36 a. The holding plate 36 is provided with a receiving portion 36b bent in a U-shape, and the receiving portion 36b is connected near the end of the opening 36a.

The gap filling member 35 is in contact with the lower surface of the bottom 10 so that the opening 35 a of the gap filling member 35 is positioned at the opening 10 a of the bottom 10.
The opening 36 a of the pressing plate 36 is positioned at the opening 35 a of the gap filling member 35 and the opening 10 a of the bottom 10, and the receiving portion 36 b of the pressing plate 36 is below the extension 35 b of the gap filling member 35. A pressure plate 36 is in contact with the lower surface of the gap filling member 35 so as to be positioned.

The pressure plate 36 is connected to the bottom 10 by a bolt 37, and the gap filling member 35 is fixed to the lower surface of the bottom 10 by the pressure plate 36 so as to be sandwiched between the bottom 10 and the pressure plate 36. .

The body portions 24 of the crop sensors 31 to 34 are connected to the lower surface of the presser plate 36 by bolts 37 in a co-clamped state, and the detection units 25 of the crop sensors 31 to 34 It projects obliquely upward through the opening 35 a of the member 35 and the opening 10 a of the bottom 10.

The detection of cereal grits by the crop sensors 31 to 34 will be described as follows.
The condition shown in FIG. 12 and FIG. 13 is a condition in which the cereal grits are not in contact with the detection unit 25 of the crop sensors 31 to 34, and the crop sensors 31 to 34 do not detect cereal grits.

In this state, the upper stopper portion 25e of the detection portion 25 of the crop sensors 31 to 34 is in contact with the edge of the opening 36a of the pressing plate 36 from the lower side, and is in contact with the frame 9 through the pressing plate 36 It is. In this state, the detection units 25 of the crop sensors 31 to 34 are located at the upper swing limit, and can not swing further upward.

In this state, the extending portion 35b of the gap filling member 35 contacts the wall 25d of the detecting portion 25 of the crop sensors 31 to 34, and the extending portion 35c of the gap filling member 35 detects the crop sensors 31 to 34 The long side of the opening 35a of the gap filling member 35 is in contact with the walls 25b and 25c of the detection unit 25 of the crop sensors 31 to 34.

Thereby, the gap between the detection part 25 of the crop sensors 31 to 34 and the opening 10 a of the bottom part 10 is formed by the wall parts 25 b, 25 c and 25 d of the detection parts 25 of the crop sensors 31 to 34 and the gap filling member 35 In the state of being buried, the grain does not leak through the opening 10 a of the bottom 10.

In the state shown in FIG. 12 and FIG. 13, when the gravel comes in contact with the detection parts 25 of the crop sensors 31 to 34, the detection parts 25 of the crop sensors 31 to 34 are pushed downward by the gravel and the gap filling member 26 The crop sensors 31 to 34 are in a state of detecting a grain scale by swinging so as to enter the opening 35 a of the

When the detection unit 25 of the crop sensors 31 to 34 swings downward, the lower stoppers 25 f of the detection units 25 of the crop sensors 31 to 34 and the lower sides of the walls 25 b and 25 c are the receiving portions 36 b of the pressing plate 36. The detection unit 25 of the crop sensors 31 to 34 has reached the lower swing limit.
In this state, the lower stopper portion 25f of the detection portion 25 of the crop sensors 31 to 34 is in contact with the frame body 9 through the pressing plate 36 (receiving portion 36b), and can not be swung further downward. Become.

When the detection units 25 of the crop sensors 31 to 34 reach the lower swing limit, the detection units 25 of the crop sensors 31 to 34 close the opening 35 a of the gap filling member 35 and the opening 10 a of the bottom 10. In this state, the upper portion 25a of the detection unit 25 of the crop sensors 31 to 34 and the upper surface of the bottom portion 10 become substantially flush.
As a result, the flow of cereal grains is not inhibited by the detection unit 25 of the crop sensors 31 to 34, and the grains do not leak through the opening 10 a of the bottom 10.

Fifth Embodiment of the First Embodiment
In the crop sensors 31 to 34 shown in FIG. 4 and [the first alternative form of the first embodiment] to [the fourth form of the first embodiment], the crop sensors 31 to 34 are arranged as shown in FIG. May be

As shown in FIG. 15, two crop sensors 31 and 32 are provided in the reaper 4.
In the bottom portion 10 of the frame body 9, the crop sensor 31 is located on the front side of the right spiral portion 17 b of the lateral conveyance body 17 (corresponding to the position on the right side with respect to the entrance portion 3 a of the conveyance portion 3 in the harvesting portion 4 (harvesting portion)). Is equipped.

In the bottom portion 10 of the frame body 9, the crop sensor 32 is located on the front side of the left spiral portion 17 c of the lateral conveyance body 17 (corresponding to the position on the left side with respect to the entrance portion 3 a of the conveyance portion 3 in the harvesting portion 4 (harvesting portion)). Is equipped.

Thus, the crop sensors 31, 32 are provided in the reaper 4 (harvest) with a space in the left-right direction. That is, in the reaper 4 (the harvester), the right side and the left side are distributed and arranged with reference to the left and right center CL2 of the entrance 3a of the transport unit 3. Furthermore, the frame body 9 is provided in a portion located below the horizontal conveyance body 17.

The crop sensor 31 overlaps the rotation trajectory of the right spiral portion 17b of the horizontal conveyance body 17 in plan view, and the crop sensor 32 overlaps the rotation trajectory of the left spiral portion 17c of the horizontal conveyance body 17 in plan view.
The crop sensors 31, 32 are disposed on the front side (peripheral side) of the rotational trajectory of the right spiral portion 17b and the left spiral portion 17c of the lateral conveyance body 17 in a side view, and the right spiral portion 17b and left side of the lateral conveyance body 17 It does not interfere with the spiral part 17c. Since the crop sensors 31 and 32 and the scraping portion 17 d of the lateral transport body 17 are different in position in the left-right direction, the crop sensors 31 and 32 do not interfere with the scraping portion 17 d of the lateral transport body 17.

In the crop sensor 31, the axial center P5 of the main body 24 of the crop sensor 31 is directed in the front-rear direction, and the detection unit 25 of the crop sensor 31 is on the diagonal left side (right and left center CL1 side of the reaper 4) It is extended to the upper side of 3a side).

In the crop sensor 32, the axis P5 of the main body 24 of the crop sensor 32 is directed in the front-rear direction, and the detection unit 25 of the crop sensor 32 is on the diagonal right side (right and left center CL1 side of the reaper 4) It is extended to the upper side of the part 3a side).

The detection of grain defects by the crop sensors 31, 32 and the cropped crop sensors 22, 23 will be described.
As shown in FIG. 15, when the division between the right and left dividers 14 is divided into three areas A1, A2 and A3, the crop sensor 31 corresponds to the area A1, and the crop sensor 22 and 23 corresponds to the area A2. In response, the crop sensor 32 corresponds to the area A3.

When the cereal grits are introduced from the area A1, the cereal grits are conveyed to the left by the right spiral part 17b of the lateral conveyance body 17 and supplied to the inlet 3a of the conveyance part 3 by the scraping part 17d of the lateral conveyance body 17 When the grain casket contacts the crop sensor 31, the crop sensor 31 detects the clump.

When the cereal grits are introduced from the area A2, the cereal grits are supplied to the inlet 3a of the transporter 3 while being transported to the rear side by the scraping part 17d of the lateral transporter 17, and the right and left harvests The crop sensors 22 and 23 detect grain defects.

When the cereal grits are introduced from the area A3, the cereal grits are conveyed to the right by the left spiral portion 17c of the lateral conveyance body 17, and are supplied to the inlet portion 3a of the conveyance portion 3 by the scraping portion 17d of the lateral conveyance body 17. When the grain casket contacts the crop sensor 32, the crop sensor 32 detects the clump.

In the right and left cropped crop sensors 22 and 23, when the cereal straw is introduced from the area A1, the right harvested crop sensor 22 detects the cereal flour and the left harvested crop sensor 23 detects the cereal flour It will be a state or a state not detected.
When a grain scale is introduced from the area A2, at least one of the right and left crop sensor 22 and 23 detects a grain scale.
When a grain scale is introduced from the area A3, the right crop crop sensor 22 is in a state of detecting or non-detecting a grain crop, and the left crop crop sensor 23 is in a state of detecting a grain crop.

The detection pattern of the grain scale by the crop sensors 31, 32 and the crop crop sensors 22, 23 will be described.
As shown in FIG. 16, detection patterns B11 to B14 of grain scale by crop sensors 31 and 32 and crop crop sensors 22 and 23 and a width W1 which is the lateral width of the grain scale introduced from the field to the harvesting unit 4 Become.

As shown in the detection pattern B11, when the crop sensors 31, 32 are in the detection state ON and the right and left harvest crop sensors 22, 23 are in the detection state, the cutting width W1 is determined to be a state extending over the areas A1, A2, A3. it can. In this case, when the right or left crop sensor 22 or 23 is in the non-detection state OFF, it can be determined that an abnormality has occurred.

As shown in the detection pattern B12, the crop sensor 31 is in the detection state ON, the crop sensor 32 is in the non detection state OFF, the right crop crop sensor 22 is in the detection state ON, and the left crop crop sensor 23 is in the detection state ON or non detection When it becomes OFF, it can be judged that the cropping width W1 is in the state across the areas A1 and A2 or in the state of the area A1. In this case, when the right cropped crop sensor 22 is in the non-detection state OFF, it can be determined that an abnormality has occurred.

As shown in the detection pattern B13, the crop sensor 31 is in the non-detection state OFF, the crop sensor 32 is in the detection state ON, the right crop crop sensor 22 is in the detection state ON or non-detection state OFF, and the left crop crop sensor 23 is in the detection state When turned ON, it can be judged that the cutting width W1 is in the state extending over the areas A2 and A3 or in the state of the area A3. In this case, when the left crop sensor 23 is in the non-detection state OFF, it can be determined that an abnormality has occurred.

As shown in the detection pattern B14, when the crop sensors 31, 32 are in the non-detection state OFF and the right and left harvest crop sensors 22, 23 are in the detection state, the cropping width W1 can be determined as the state of the area A2.

Sixth Embodiment of the First Embodiment
In the fifth embodiment of the first embodiment described above, the third crop sensor 33 is disposed on the front side of the scraping portion 17d of the lateral conveyance body 17 shown in FIG. 15 (on the front side of the inlet 3a of the conveyance portion 3). You may provide (refer the crop sensor 33 of FIG. 2).

According to this structure, in the detection pattern B12 of FIG. 16, when the crop sensor 33 is in the detection state ON, it can be determined that the cutting width W1 is a state extending over the areas A1 and A2. When the crop sensor 33 is in the non-detection state OFF, the cutting width W1 can be determined to be the state of the area A1.

In the detection pattern B13 of FIG. 16, when the crop sensor 33 is in the detection state ON, it can be determined that the cutting width W1 is a state extending over the regions A2 and A3. When the crop sensor 33 is in the non-detection state OFF, the cutting width W1 can be determined as the state of the area A3.

Seventh Embodiment of the First Embodiment
The detection of grain defects of the crop sensors 31 to 34 may be configured as follows.
The amount of grain scale introduced to the reaper 4 changes in each part of the field depending on the growing condition in the field, etc., and the grain scale is sufficient to bring the crop sensors 31 to 34 into the detection state ON sufficiently. However, it is not always introduced into the reaper 4.
As a result, when reaping is performed by the reaper 4, the state in which the cereal grits introduced to the reaper 4 contact the crop sensors 31 to 34 and the non-contact state are repeated.

In the above-described state, as shown in FIG. 17, it is assumed that detection signals ON1, ON2, ON3, and ON4 are repeatedly output from the crop sensors 31 to 34 in the non-detection state OFF.
In this case, even if the detection signals ON2, ON3 and ON4 are output from the crop sensors 31 to 34 until the set time T elapses from the first detection signal ON1, the crop sensors 31 to 34 are output. Is determined to be the detection state ON (see the dotted line in FIG. 17).

Even if the set time T has passed, if the cutting by the reaper 4 is performed, the next detection signal ON1 is immediately output from the crop sensors 31 to 34, so the set time T is set again. The crop sensors 31 to 34 are determined to be in the detection state ON.

As a result, while the harvesting by the harvesting unit 4 is being performed, in the areas A1 to A4 where the cereals are introduced, even if the cereals contact and not come in contact with the crop sensors 31 to 34, The crop sensors 31 to 34 are determined to be in the detection state ON.

The set time T may be set to a fixed time (for example, one second).
The set time T may be changed in conjunction with the traveling speed of the aircraft 1.
In other words, there is a possibility that cereal grits exist (a possibility that the crop sensors 31 to 34 output the detection signal) from a point where the crop sensors 31 to 34 output the detection signal to a certain distance (for example, 2 m) Based on the idea of being high, when the aircraft 1 travels a fixed distance, it is necessary to change the set time T according to the different traveling speeds of the aircraft 1.

When the setting time T is changed in conjunction with the traveling speed of the aircraft 1, the speed sensor (not shown) for detecting the traveling speed of the aircraft 1 is provided, and when the traveling speed of the aircraft 1 becomes high, the setting time T becomes The setting time T may be changed to the long side when the traveling speed of the airframe 1 is changed to the short side and the traveling speed of the aircraft 1 becomes low.

In the combine, when one harvest stroke along one side of the field is finished and reached the edge, the reaper 4 is stopped and raised from the field to perform a turn at the edge and enter the next harvest stroke Repeat the task.

Thus, the process shown in FIG. 17 is performed in a state in which the reaper 4 performs cutting, that is, in a state in which a reaper clutch (not shown) for transmitting power to the reaper 4 is operated.

As shown in FIG. 17, the processing shown in FIG. 17 is not performed in a state in which the cutting by the reaper 4 is not performed as in the case of turning on the ground, that is, in a state in which the cutting clutch is operated. When the signals ON1 to ON4 are stopped, the crop sensors 31 to 34 are determined to be in the non-detection state OFF.

[Another Embodiment of Embodiment 1]
The crop sensors 31 to 34 of FIGS. 4 and 7 to 11 may be provided with the upper stopper portion 25e and the lower stopper portion 25f of the crop sensors 31 to 34 described above.

Second Embodiment

Hereinafter, in the harvester (combine) which concerns on Embodiment 2, the structure which controls the travel speed of an airframe according to harvest width is demonstrated. The harvester (combine) which concerns on this Embodiment can be implemented with the harvester (combine) which concerns on Embodiment 1, or independently.

(Configuration for detection of cutting width and abnormalities)
As shown in FIG. 18, detection signals of the crop sensors 31 to 34 and crop crop sensors 22 and 23 are input to the control device 130, and the cropping width detector 136 (corresponding to a cropping width detector) and the abnormality detector 137 Are included in the control device 130 as software. The crop sensors 31 to 34 are attached to the cutting width detection unit 136, and are provided to the cutting width detection unit 136. A display device 39 such as a liquid crystal display is provided in the driving unit.

Based on the detection signals of the crop sensors 31 to 34, the cutting width W1 is detected by the cutting width detection unit 136, and the detection result (cutting width W1) is displayed on the display device 39.

Based on the detection signals of the crop sensors 31 to 34 and the crop sensors 22, 23, the anomaly detector 137 detects an anomaly, and when an anomaly is detected, the detection result is displayed on the display device 39.

(Configuration of traveling transmission system)
As shown in FIG. 18, the power of the engine (not shown) is transmitted to the hydrostatic type continuously variable transmission 128 (corresponding to a traveling transmission unit), and from the geared sub transmission (not shown). , Right and left traveling devices 2. The continuously variable transmission 128 can steplessly shift to the neutral position N, the forward side F, and the reverse side R.

The electric motor 129 operates the continuously variable transmission 128, and the control device 130 operates the electric motor 129. The drive unit is provided with the shift lever 135, and the shift lever 135 can be operated to the neutral position N, the forward side F and the reverse side R, and the operation position of the shift lever 135 is input to the control device 130.

The speed control unit 38 is provided in the control device 130 as software. A manual setting unit 40 capable of manually setting the speed control unit 38 into the operating state and the stop state is provided in the operating unit, and a signal of the manual setting unit 40 is input to the control device 130.

When the speed control unit 38 is set to the stop state by the manual setting unit 40, the stop state of the speed control unit 38 is displayed on the display device 39. When the shift lever 135 is operated to the neutral position N while the speed control unit 38 is stopped, the electric motor 129 is operated by the control device 130 and the continuously variable transmission 128 is operated to the neutral position N. When the shift lever 135 is operated to the forward side F (reverse side R), the electric motor 129 is operated by the control device 130, and the continuously variable transmission 128 is operated to the forward side F (reverse side R). The continuously variable transmission 128 is operated to the shift position corresponding to the operation position of the lever 135.

(Automatic control of the traveling speed of the aircraft)
As shown in FIG. 18, when the speed control unit 38 is set to the operation state by the manual setting unit 40, the operation state of the speed control unit 38 is displayed on the display device 39. Based on the detection result (the cutting width W1) of the cutting width detection unit 136, the speed control unit 38 operates the electric motor 129 to automatically operate the continuously variable transmission 128.

In the operating state of the speed control unit 38, the continuously variable transmission 128 is automatically operated to the low speed side of the forward side F by the speed control unit 38 as the cutting width W1 is larger. As the cropping width W1 is smaller, the speed control unit 38 automatically operates the continuously variable transmission 128 to the high speed side of the forward side F. The shift position of the continuously variable transmission 128 is displayed on the display device 39.

In the operating state of the speed control unit 38, when the continuously variable transmission 128 is automatically operated to the high speed side by the speed control unit 38, the upper limit position on the high speed side is the operation position of the speed change lever 135. The continuously variable transmission 128 is not operated to the high speed side of the forward side F beyond the shift position corresponding to the operation position. Thus, by operating the shift lever 135, the upper limit position on the high speed side can be arbitrarily changed.

When the shift lever 135 is operated to the reverse side R when the speed control unit 38 is in operation, the speed control unit 38 is temporarily stopped, and the shift position on the reverse side R corresponding to the operation position of the shift lever 135 The continuously variable transmission 128 is operated. Next, when the shift lever 135 is operated to the forward side F, the speed control unit 38 returns to the operating state.

For example, as in the first state of one reaping stroke, in the case where the reaper 4 is made to plunge into the grain of the field, the reaping width W1 is suddenly generated from the state where the reaping width W1 does not exist.
In the operating state of the speed control unit 38, when the above-mentioned state occurs, the speed control unit 38 causes the continuously variable transmission 128 to operate more rapidly than the operation to the low speed side of the continuously variable transmission 128 during reaping work. It is operated to the low speed side of the forward side F.

For example, when the reaper 4 does not reap the grain of the field, as in the case of the end of one reaping stroke, the reaping width W1 suddenly disappears from the state where the reaping width W1 exists, and thereafter the fuselage It is often made to turn one.
When the above-mentioned state occurs in the operating state of the speed control unit 38, the speed control unit 38 makes the continuously variable transmission 128 more gentle than the operation to the high speed side of the continuously variable transmission 128 during the reaping operation. It is operated to the high speed side of the forward side F.

When the grain baskets in the field are fallen down or densely packed, the driver may not recognize the state of the reaper 4 even if the driver looks at the front of the reaper 4 from the driver. In this case, since the detected cropping width W1 is displayed on the display device 39, the driver visually checks the display device 39 to determine in which areas A1 to A4 of the cropping unit 4 the grain gravel has been introduced. It can be confirmed. As a result, the cutting width W1 displayed on the display device 39 can be effectively used for correcting the orientation of the machine 1 during the reaping operation.

[Another Embodiment of Embodiment 2]
Instead of operating the continuously variable transmission 128 by the electric motor 129 to automatically control the traveling speed of the machine 1, the electric motor 129 operates the accelerator of the engine (corresponding to the traveling transmission unit) to operate the machine. The traveling speed of 1 may be controlled automatically.

When the gear shift lever 135 and the continuously variable transmission 128 are mechanically connected by a linkage link or the like, the electric motor 129 operates the gear shift lever 135 to operate the continuously variable transmission 128, thereby The traveling speed may be controlled automatically.

[Another Embodiment of Embodiments 1 and 2]
The transport unit 3 may be offset and connected to the rear of the reaper 4 so that the left and right center CL2 of the inlet 3a of the transport unit 3 is positioned slightly to the right of the left and right center CL1 of the reaper 4.
According to this structure, the arrangement of the right spiral portion 17b and the left spiral portion 17c, the scraping portion 17d, and the crop sensors 31 to 34 of the horizontal conveyance body 17 is reversed from the state shown in FIG. 2 and FIG. It should be placed in

The transport unit 3 is connected to the rear of the reaper 4 so that the left and right center CL2 of the inlet 3a of the transport unit 3 is located at the left and right center CL1 of the reaper 4 and the right spiral of the lateral transport 17 The 17 b and the left spiral portion 17 c may have the same length.

According to this structure, the crop sensors 33 are disposed to be located at the left and right center CL2 of the entrance 3a of the transport unit 3, and the crop sensors of the same number are provided on the front side of the right spiral 17b and the left spiral 17c of the horizontal conveyor 17. 31, 32 and 34 may be disposed so as to be symmetrical with respect to the left and right center CL 1 of the reaper 4.

The number of crop sensors 31 to 34 may be five or more instead of four, or three or less. The crop sensor 33 located on the front side of the inlet 3a of the transport unit 3 may be eliminated.
In the frame body 9 of the reaper 4, the crop sensors 31 to 34 may be provided on the rear side 12 instead of the bottom 10. In this case, the crop sensors 31 to 34 may be provided on the lower side portion (corresponding to the portion positioned below the horizontal conveyance body in the frame body) below the axial core P2 of the horizontal conveyance body 17 in the rear side portion 12 .

When the crop sensors 31 to 34 are provided on the rear side 12, the pressure receiving surface is provided by a rubber body or the like instead of the detection unit 25 of the crop sensors 31 to 34, and the pressure on the pressure receiving surface is increased The crop should be detected by

The right and left portions of the inlet 3a of the transport unit 3 are not provided with the right and left crop sensor 22 and 23, but one at the bottom 18a of the support case 18 at the inlet 3a of the transport 3 Harvest crop sensor (not shown). Thereby, it is possible to determine that an abnormality has occurred in the crop sensors 31, 32, 33, 34 by one crop sensor.
In this case, a cropped crop sensor (not shown) may be provided at the left and right center CL2 of the inlet 3a of the transport unit 3 at the bottom 18a of the support case 18, and the left and right center of the inlet 3a of the transport 3 A cropped crop sensor (not shown) may be provided at a position slightly right or left from CL2.

The present invention is applicable not only to ordinary rice combine, but also to harvester such as corn harvester, sugar cane harvester, cotton harvester, etc.

DESCRIPTION OF SYMBOLS 1 airframe 3 conveyance part 3a entrance part 4 harvesting part 9 frame body 10 bottom part 10a opening part 17 horizontal conveyance body 22 and 23 harvest crop sensor 25 detection part 25b, 25c, 25d wall part 25e upper stopper part 25f lower stopper part 26, 29 , 30, 35 gap filling member 128 traveling transmission unit 31, 32, 33, 34 crop sensor 36 cropping width detection unit 38 speed control unit CL2 left and right center P2 axis core P5 axis core W1 cropping width

Claims (19)

1. A harvesting section, located at the front of the fuselage, for harvesting crops in the field,
   A harvester provided with a plurality of crop sensors which are arranged at intervals in the lateral direction in the harvest part and which contact the crops to detect the presence of crops.
2. A conveying unit for conveying a crop from the harvesting unit to the airframe side is connected to the rear of the harvesting unit;
   In the harvest section,
   A lateral transport body that is rotationally driven about an axis in the left-right direction so as to transport the crop toward the inlet of the transport portion along the lateral direction of the harvest section;
   And a frame body rotatably supporting the lateral transport body and connected to the transport portion.
   The harvester according to claim 1, wherein the crop sensor is provided on the frame body.
3. The harvester according to claim 2, wherein the crop sensor is provided in a portion of the frame body located below the lateral transport body.
4. The harvester according to claim 2 or 3, wherein the crop sensor is provided at the bottom of the frame body.
5. The harvester according to any one of claims 2 to 4, wherein the crop sensor is arranged at a position on an outer peripheral side of a rotation trajectory of the horizontal conveyance body.
6. An opening is formed in the frame body,
   The harvest according to any one of claims 2 to 5, wherein the detection unit of the crop sensor is provided in a state of protruding from the opening, and is configured to swing in contact with the crop. Machine.
7. The harvester according to claim 6, further comprising: a gap filling member filling the gap between the detection unit and the opening.
8. A wall portion extending downward is provided on an outer peripheral portion of a portion protruding from the opening portion in the detection portion, and a portion protruding from the opening portion in the detection portion is formed in a box shape by the wall portion The harvester according to claim 6 or 7, wherein
9. In the detection portion, there are an upper stopper portion that determines the upper swing limit of the detection portion by hitting the frame body, and a lower stopper portion that determines the lower swing limit of the detection portion by hitting the frame body. A harvester according to any one of claims 6 to 8 provided.
10. A conveying unit for conveying a crop from the harvesting unit to the airframe side is connected to the rear of the harvesting unit;
    10. The crop sensor according to any one of claims 1 to 9, wherein the crop sensor is disposed at a position on the right side and a position on the left side with respect to the left and right center of the entrance portion of the transport unit in the harvesting unit. Harvester described in.
11. The crop sensor according to claim 10, wherein the crop sensor is provided at a position to the right of the inlet, a position to the left of the inlet, and a position on the front of the inlet at the harvester. Harvester.
12. The crop sensor provided on the front side of the inlet in the harvesting part is provided on the front side of the crop sensor provided on the right side and the left of the inlet in the harvesting part The harvester according to claim 11.
13. The crop sensor provided at a position on the right side and a position on the left side with respect to the inlet portion in the harvesting section is provided with a detection unit that is in contact with the crop and swings around an axial center in the front-rear direction. Item 13. A harvester according to item 11 or 12.
14. The crop sensor provided on the front side of the inlet in the harvester is provided with a detection unit that is in contact with the crop and swings around an axial center in the left-right direction. Harvester according to one item.
15. A harvesting section provided at the front of the fuselage to harvest field crops,
    A harvest width detection unit that detects a harvest width corresponding to a crop group harvested by an actual harvesting operation among workable widths that can be harvested by the harvesting unit;
    A traveling transmission unit that changes the traveling speed of the aircraft;
    Based on the detection result of the harvest width detection unit, the speed control unit operates the traveling transmission unit to the low speed side as the harvest width is larger, and operates the traveling transmission unit to the high speed side as the harvest width is smaller. And a harvester equipped.
16. The crop width detection unit is provided with a crop sensor that contacts the crop to detect the presence of the crop;
    The harvester according to claim 15, wherein two or more of the crop sensors are provided in the harvest section at intervals in the left-right direction.
17. There is provided a transport unit connected to the rear of the harvester for transporting the harvested crop from the harvester to the machine side.
    17. The harvester according to claim 15, wherein a harvest crop sensor is provided at an inlet of the transport unit for detecting the presence of a crop in contact with the harvested crop.
18. 18. The harvester according to claim 17, wherein the crop sensor is provided on the right and left portions of the inlet of the transport unit.
19. The crop width detection unit is provided with a crop sensor that contacts the crop to detect the presence of the crop;
    Three or more of the crop sensors are arranged at intervals in the left-right direction in the harvest section,
    19. The harvester according to claim 15, wherein at least one crop sensor located on the center side of the crop sensors is disposed in front of an inlet of the harvester.
    

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