JP2007029026A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To attach and detach a reaping pretreatment part 20 equipped with a first reaping device to and from a feeder 7 in a combine harvester equipped with the first reaping device 21 acting on standing grain straws and a second reaping device 30 acting on standing grain straws at a part closer to a plant foot side than the first reaping device 21. <P>SOLUTION: The second reaping device 30 is supported on the feeder 7 so as to be raised or lowered between a lowered use state to a raised storage state. When the second reaping device 30 is operated in a raised storage state, the edge of a blade of the second reaping device 30 is positioned at an arrangement height higher than the lower end S of the end part 7b of the feeder on the rear side of the end part 7b of the feeder 7 on a side view of a machine body. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention includes a pre-cutting processing unit equipped with a first reaping device for reaping planted stalks, a feeder that supplies threshing stalks from the pre-cutting processing unit to a threshing device, and the first reaping device. The present invention relates to a combine equipped with a second reaping device that performs stalking of planted stalks on the planter side from the first reaping device on the rear side of the machine body.

Conventionally, for example, Patent Document 1 discloses the above combine.
What is shown in Patent Document 1 is that a pre-cutting processing unit is configured to cut the cereal with a first cutting blade 20 as a first cutting device provided at the front end of the cutting frame 25 of the cutting header 17 and is taken into the header 17. The feeder is configured to feed the harvested cereal rice cake to the threshing unit 4 via the feed chain conveyor 23 provided in the feeder house 18, and is attached to the rotation fulcrum shaft 27 attached to the rear side of the harvesting frame 25 via the bracket 26. While having the 2nd cutting blade 21 as a 2nd cutting device supported via the right-and-left support frame 28, this 2nd cutting blade 21 further cuts the high stubble cut by the 1st cutting blade 20, and is low. It is configured to have a cutting stock height.

Japanese Unexamined Patent Publication No. 9-23730 (paragraphs [0006]-[0009], FIG. 1-3)

  In this type of combine, for example, a pre-cutting processing unit having different processing forms depending on the crop is prepared, such as a processing unit having a cereal scraping reel and a stalk raising device. So that different types of combine can be obtained depending on the combination of the machine part other than the pre-cutting processing part and the removable pre-cutting processing part. And can be connected detachably.

  In this type of conventional combine, for example, as shown in Patent Document 1, since the second mowing device is supported by the pre-cutting processing unit, when the pre-cutting processing unit is detached, the pre-cutting processing unit is used. Tended to be heavy for the second mowing device. Moreover, it is necessary to pay sufficient attention so that the second mowing device does not deform or break when hit by a feeder or the like, and the work efficiency tends to be deteriorated.

  An object of the present invention is to provide a combine capable of efficiently detaching while avoiding deformation and breakage of the second reaping device, etc., in order to enable detachment of the pre-cutting processing unit. .

In the first aspect of the invention, the pre-cutting processing unit equipped with the first mowing device that cuts the planted stalks, the feeder that supplies the threshing stalks from the pre-cutting processing unit to the threshing device, In a combine equipped with a second reaping device for reaping the planted stem pod on the planter side rather than the first reaping device on the rear side of the machine than the 1 reaping device,
The second reaping device is supported by the feeder so as to be movable up and down in a lowered use state and a raised storage state,
In a state where the second reaping device is raised to the raised retracted state, the cutting edge of the second reaping device is higher than the lower end of the distal end portion at the rear side of the distal end portion of the feeder in a side view of the body. It is comprised so that it may be located.

  That is, when the second reaping device is in the ascending retracted state, the second reaping device is supported by the feeder in a state where the cutting edge is positioned on the rear side of the feeder tip portion at a higher arrangement height than the lower end of the feeder tip portion. become. Thus, if the pre-cutting processing unit is configured to be detachable from the feeder, the pre-cutting processing unit becomes heavy for the second mowing device and is difficult to handle by supporting the second mowing device on the feeder. The second cutting device is stored in a state where the cutting edge of the second cutting device does not protrude forward or downward from the feeder in a side view of the body while avoiding the cutting, and the pre-cutting processing unit and the second cutting device are It becomes possible to detach the pre-cutting processing unit while making it difficult for a hit situation to occur.

  Therefore, according to the first aspect of the present invention, it is possible to handle the pre-cutting processing section with the feeder so that the pre-cutting processing section can be handled relatively easily and easily and can be attached and detached efficiently. In addition, it is possible to obtain a state in which it is possible to perform the detachment work without causing deformation or breakage due to interference between the pre-cutting processing unit and the second cutting device.

  In the second invention, in the configuration of the first invention, a locking mechanism in which the second mowing device is suspended and supported by the feeder via a hook between the second mowing device and the feeder, And the connection mechanism by which the 2nd mowing apparatus is clamped and fixed to the feeder is provided.

  That is, the second reaping device is suspended and supported by the feeder by operating the locking mechanism. Thereby, the second mowing device is suspended and supported by the feeder, the load of the second mowing device is applied to the feeder, and the coupling mechanism is aligned and tightened while artificially supporting the second mowing device lightly. it can.

  Therefore, according to the second invention, it is possible to perform the assembly of the second reaping device efficiently by easily performing the positioning and tightening operations of the coupling mechanism while the second reaping device is suspended and supported by the feeder.

Embodiments of the present invention will be described below with reference to the drawings.
As shown in FIG. 1, a threshing device 10 is arranged on the rear side of a body frame 5 of a self-propelled machine body that is configured to travel by a pair of left and right crawler traveling devices 1 and that has a driving unit equipped with a driving cabin 2. And a grain tank 6, a pre-cutting processing unit 20 is connected to the front end of the feeder 7 extending from the front end of the threshing device 10 toward the front of the self-propelled machine body, and the pre-cutting processing unit 20 is provided. A combiner is configured by supporting a clipper-shaped second trimming device 30 disposed on the rear side of the self-propelled machine body from the clipper-shaped first trimming device 21 on the front end portion of the feeder 7.

  This combine harvests rice, wheat, soybeans and the like, and is structured as follows in detail.

  As shown in FIG. 1, the pre-cutting processing unit 20 swings up and down from the pre-processing machine 22 connected to the front end of the feeder 7 and both lateral ends on the rear end of the pre-processing machine 22 to the front side. A scraping reel 24 that is rotatably supported by a support arm 23 that extends freely, a weeding tool 25 provided on both lateral ends of the front end side of the pretreatment body 22, and a platform in the pretreatment body 22 The first auger 21 provided at the front end of 22a, and a rotary auger 26 provided rotatably on the platform 22a on the rear side of the first reaper 21 in the pretreatment machine body. It is.

  As shown in FIG. 1, the base portion of the feeder 7 is supported by the front end portion of the threshing device 10 so as to be rotatable around the axis P of the self-propelled machine body, and a pretreatment lifting cylinder 8 is provided at the bottom portion of the front end side of the feeder 7. The feeder 7 is connected to the pretreatment lifting cylinder 8 so as to swing up and down around the axis P to move the cutting pretreatment section 20 to the ground.

  A feeder conveyor 7a using an endless rotating chain is provided inside the feeder 7 so that it can be driven. The feeder conveyor 7a moves the harvested cereal from the rotary auger 26 of the pre-cutting processing unit 20 along the bottom plate of the feeder 7. Then, it is transported to a discharge port located on the rear end side of the feeder 7 and supplied to the inside of the threshing apparatus 10 from this discharge port.

  The 2nd cutting device 30 is supported by the front-end part of the feeder 7 via the cutting raising / lowering mechanism 40 arrange | positioned in the both lateral outer sides of the front-end part of the feeder 7 like FIG.

  As shown in FIGS. 3 and 5, the left and right trimming lifting mechanisms 40 are attached to a pair of upper and lower support portions 7 c of a coupling member 7 b provided so as to couple the cutting pretreatment unit 20 to the tip of the feeder 7. A member 41, a pair of upper and lower swing links 42 and 43, one end of which is rotatably connected to the mounting member 41, the other end of each of the swing links 42 and 43 is rotatably connected and a second cutting It is constituted by a quadruple link mechanism comprising a reaping device stay 31 to which a device 30 is attached. A cylinder bracket 44 provided on the attachment member 41 of one of the left and right cutting / lifting mechanisms 40 and a swing link 43 on the lower side of each of the cutting / lifting mechanisms 40 are connected to the cutting device stay 31. A cutting lift cylinder 34 is mounted over a cylinder bracket 33 provided in a transmission case 32 made of steel pipe that also serves as a connecting shaft.

That is, the right and left mowing raising / lowering mechanisms 40 are driven up and down by the mowing raising / lowering cylinder 34 to move the second mowing device 30 into the lowered use state shown in FIG. 2B and the raised storage state shown in FIG. Move up and down.
The second cutting device 30 that has been lowered to the use state of lowering is in a state in which the height of the cutting edge of the second cutting device 30 is lower than the height of the cutting edge of the first cutting device 21. The second reaping device 30 that has been operated to be lifted into the ascending storage state has the cutting edge of the second reaping device 30 at the rear side of the connecting member 7b as the tip portion of the feeder 7 in a side view of the body, rather than the lower end S of the connecting member 7b. It will be in a state of being positioned at a high placement height.

That is, when the pretreatment elevating cylinder 8 is expanded and contracted, the feeder 7 is swung up and down by the pretreatment elevating cylinder 8, and the mowing pretreatment unit 20 is lowered with the first mowing device 21 and the like positioned at the work height on the ground. The lifting operation is performed between the working state and the lifted non-working state in which the first mowing device 21 and the like are raised from the ground. When the pre-cutting processing unit 20 is in the descending work state and the self-propelled machine is run, the pre-cutting processing unit 20 uses the weeding tool 25 to set up the planted culm that is to be harvested and the planting of the non-pruning target. The first reaping device 21 cuts the cereals into the cereals and rakes them toward the platform 22a by the scraping reel 24 that rotates the planted cereals to be cut from the weeding tool 25. 1 The harvested cereals from the harvesting device 21 are transported laterally on the platform by the rotating auger 26 and gathered to the front of the entrance (not shown) of the feeder 7, and the scraping claw 26a provided in the rotating auger 25 is provided. To feed into the entrance of the feeder 7. The feeder 7 feeds the harvested cereal rice cake that has been fed into the entrance to the rear end side of the feeder 7 by the feeder conveyor 7a, and supplies it to the threshing apparatus 10 from the discharge port of the feeder 7. The threshing apparatus 10 throws the whole of the harvested cereal culm from the feeder 7 into the handling room (not shown) from the feeder 7 and turns the threshing process by the handling cylinder 11 that rotates around the axis of the threshing apparatus. To do. The grain tank 6 collects and stores the thresh grains carried out from the sorting unit of the threshing apparatus 10.
When the second reaping device 30 is operated to be lowered to the lowering use state, the first reaping device 21 cuts the tip side and the planted cereal remaining on the ground is more stocked than the first reaping device 21. Cut the cereals on the ground and leave the slimmings of the cut cereals on the ground.

  As shown in FIG. 8, the control means 50 is linked to the cutting lift cylinder 34. The control means 50 includes a preprocessing height sensor 51, a cutting clutch sensor 52, a threshing clutch sensor 53, and a second cutting height. A pair of detection switches 61 and 62 of the detection mechanism 60 (see FIG. 6) are linked. The control means 50 is also linked with a display means 70 provided in the operating section.

  The pretreatment height sensor 51 is composed of a potentiometer provided at the base of the feeder 7 so that the operation unit is interlocked with the vertical swing of the feeder 7 with respect to the threshing device 10, and has a swing angle of the feeder 7 with respect to the threshing device 10. Based on this, the ground height of the pre-cutting processing unit 20 is detected, and this detection result is output as an electrical signal to the control means 50.

  The mowing clutch sensor 52 detects the operation state of a mowing clutch (not shown) that turns on and off the transmission to the mowing preprocessing unit 20 and outputs the detection result to the control means 50 as an electric signal.

  The threshing clutch sensor 53 detects the operating state of a threshing clutch (not shown) that turns on and off the transmission to the threshing device 10, and outputs the detection result to the control means 50 as an electrical signal.

  As shown in FIG. 6, the second cutting height detection mechanism 60 swings up and down around the axis X <b> 1 at the lower end portion of the cutting device stay 31 included in one cutting lifting mechanism 40 of the left and right cutting lifting mechanisms 40. A grounding sensor 63 supported freely, a switch operating arm 64 supported above and below the grounding sensor 63 by the mowing device stay 31 so as to swing up and down around the axis X 2, and the switch operating arm 64 linked to the grounding sensor 63. And a pair of detection switches 61 and 62 provided on the upper and lower sides of the switch operating arm 64 inside the switch case 66 supported by the mowing device stay 31. .

  When the cutting edge of the second reaping device 30 falls below the set lower limit height, the grounding sensor 63 rises and swings due to the grounding reaction force to raise the switch operating arm 64 via the interlocking rod 65, and the switch The operating arm 64 turns on the upper detection switch 61. When the cutting edge of the second reaping device 30 rises above the set upper limit ground height, the grounding sensor 63 swings downward due to gravity and lowers the switch operating arm 64 via the interlocking rod 65, so that the switch operating arm 64 The lower detection switch 62 is turned on. When the cutting height by the second cutting device 30 is within the set range, the switch operating arm 64 does not press any of the detection switches 61 and 62, and the pair of detection switches 61 and 62 are both turned off. It is like that.

  That is, the second cutting height detection mechanism 60 detects the cutting height by the second cutting device 30 based on the vertical swing angle of the ground sensor 63 relative to the cutting device stay 31, and the detection result is used as a pair of detection switches 61. , 62 are converted into electrical signals and output to the control means 50.

  The control means 50 is configured using a microcomputer, and based on detection information from the sensors 51, 52, 53 and the detection switches 61, 62, the cutting / lifting cylinder 34 is operated to operate the second cutting device. 30 is moved up and down.

That is, the control unit 50 determines whether the cutting clutch is in the on state or the cutting state based on information detected by the cutting clutch sensor 52, and determines whether the cutting clutch is based on the detection information detected by the threshing clutch sensor 53. It is determined whether is in the on state or off state.
Furthermore, the control means 50 determines which of the three types of heights shown in FIG. 9 the cutting pretreatment unit 20 is based on information detected by the preprocessing height sensor 51. That is, when the planted cereal is cut by two stages by the first cutting device 21 and the second cutting device 30, the cutting process on the tip side by the first cutting device 21 is performed with a length that is not excessive or insufficient. The first cutting device 21 is located in the set two-stage cutting height range A (the height on the ground is 150 to 400 mm) or lower than the setting two-step cutting height range A The first mowing device 21 is located in a height range B (a range where the height above the ground is less than 150 mm) or a non-working height range C (above the ground) that is higher than the set two-stage mowing height range A It is determined whether the first reaping device 21 is located in a range where the height is 400 mm or more.
Further, the control means 50 determines whether or not the second mowing device 30 is located in the set mowing height range based on information detected by the pair of detection switches 61 and 62 of the second mowing height detection mechanism 60. To do.

  The control means 50 determines that the mowing clutch is engaged and is in an operating state, determines that the threshing clutch is engaged and is in an operating state, and further that the pre-cutting processing unit 20 is in the set two-stage mowing height range A. When the determination is made, the cutting / lifting cylinder 34 is operated to the cutting device lowering side to lower the second cutting device 20 to the lowering use state, and the pair of upper and lower detection switches 61 and 62 of the second cutting height detection mechanism 60 is operated. Are operated so that both are turned off, and the second reaping device 30 is maintained at the set ground height. At this time, the control means 50 operates the display device 70 using the liquid crystal panel to blink the character display 71 as shown in FIG.

  In addition, when the control unit 50 determines that the cutting clutch is in the disengagement operation state, the control unit 50 prioritizes the information from the threshing clutch sensor 53, the preprocessing height sensor 51, and the second cutting height detection mechanism 60, and lifts and lowers the cutting. The cylinder 34 is operated to the mowing device ascending side, and the second mowing device 30 is raised and stored in the raised storage state.

  In addition, when the pre-cutting processing unit 20 determines that the pre-cutting processing unit 20 is at the first-stage cutting height B and when the pre-cutting processing unit 20 determines that the pre-cutting processing unit 20 is at the non-working height C, the cutting clutch Prior to the information from the sensor 52, the information from the threshing clutch sensor 53, and the information from the second cutting height detection mechanism 60, the cutting lift cylinder 34 is operated to the cutting device ascending side, and the second cutting device 30 is raised. Ascend and store in storage state.

  That is, when performing the harvesting operation, when the pre-cutting processing unit 20 is lowered to the set two-stage cutting height range A, the pre-cutting processing unit 20 causes the tip portion of the planted cereal to be cut from the weeding tool 25. A slightly lower side of the first reaper is cut by the first reaping device 21, and the harvested cereal from the first reaping device 21 is supplied to the feeder 7 by the rotary auger 26. At this time, when the mowing clutch and the threshing clutch are operated in the engaged state, the second mowing device 30 is moved up and down by the control means 50 based on information from the preprocessing height sensor 51, the mowing clutch sensor 52, and the threshing clutch sensor 53. Under the control, the mowing elevating cylinder 34 is operated to the mowing device lowering side to lower the second mowing device 30 to the lowering use state. As a result, the first reaping device 21 cuts the tip portion and the cereal grains remaining in the planted state on the ground are cut by the second reaping device 30 at the stock and left on the ground. A mowing process is performed.

  At this time, the display device 70 blinks the character display 71, and by knowing this display, it can be recognized that the second reaping device 30 is in the lowered use state. Furthermore, at this time, the detected cutting height by the second cutting height detection mechanism 60 is set to the set cutting height by the elevation control of the second cutting device 30 by the control means 50 based on the detection information by the second cutting height detection mechanism 60. Even when the cutting lift cylinder 34 is operated so that the self-propelled machine body tilts back and forth, the ground height of the second cutting device 30 is maintained at the set height or almost the set height, so that the second cutting device The cutting height by 30 is maintained at the set cutting height or almost the set cutting height.

  Further, when the pre-cutting processing unit 20 is lowered to the set one-stage cutting height range B, the pre-cutting processing unit 20 causes the first reaping device to place the planted culm near the ground from the weeding tool 25 near the ground. The reaping process is performed by 21, and the cereal grains from the first reaping device 21 are supplied to the feeder 7 by the rotary auger 26. At this time, by the raising / lowering control of the second reaping device 30 by the control means 50 based on the information from the preprocessing height sensor 51, the reaping / lowering cylinder 34 is operated to the reaping device ascending side and the second reaping device 30 is moved up and stored. To ascend operation. Thereby, it is possible to perform the first-stage mowing work while avoiding the second mowing device 30 from being grounded.

  As shown in FIGS. 4 and 5, the pre-cutting processing unit 20 includes a plurality of connecting members 27 provided at the rear part of the preprocessing machine body 22 and the connecting member 7 b positioned at the tip of the feeder 7. The connecting bolt 72 is detachably connected to the tip of the feeder 7.

  That is, another pre-cutting processing unit (not shown) having a different processing form from the pre-cutting processing unit 20, such as a configuration in which the culm to be cut from the weeding tool 25 is lifted and processed by the apparatus. Can be connected to the feeder 7 instead of the pre-cutting processing unit 20.

  In this way, when the pre-cutting processing unit 20 is detached, the pre-cutting processing unit 20 is lowered to the grounding state, and therefore the second cutting device 30 by the control means 50 based on the detection information from the processing height sensor 51. The lifting / lowering cylinder 34 raises the second cutting device 30 to the raised retracted state by the raising / lowering control. Alternatively, when the storage switch 54 linked to the control means 50 is operated to output a storage command to the control means 50, the control means 50 operates the cutting lift cylinder 34 to the upward side, and the second cutting device 30 is stored in the upward direction. Can rise stored in state. As a result, while the second mowing device 30 is supported by the feeder 7, the second mowing device 30 is positioned higher than the lower end S of the feeder tip portion 7 b on the rear side of the feeder tip portion 7 b in a side view of the body. It is possible to perform the detaching operation of the pre-cutting processing unit 20 while being positioned and making it difficult for the pre-cutting processing unit 20 to hit the second cutting device 30.

  As shown in FIGS. 4 and 5, between the second reaping device 30 and the feeder 7, a coupling mechanism 80 and a locking mechanism 85 provided in each reaping / lowering mechanism 40 are provided.

  Each of the connecting mechanisms 80 fastens and fixes the attachment member 41 of the cutting / lifting mechanism 40 to the pair of upper and lower support portions 7c of the feeder 7 with a connecting bolt 81, thereby allowing the second cutting device 30 to be interposed via the cutting / lifting mechanism 40. The feeder 7 is fastened and fixed.

  As shown in FIG. 7, each locking mechanism 85 includes a hook 86 provided on the upper end side of the attachment member 41 of the cutting lifting mechanism 40 and a hook hole 87 of the upper support portion 7 c of the feeder 7. By engaging with the engaging portion 88, the second mowing device 30 is suspended and supported by the connecting member 7 b of the feeder 7 through the hook 86 together with the mowing lifting mechanism 40.

  That is, when attaching the second reaping device 30, the hook 86 of each locking mechanism 85 is locked to the locking portion 88, and the second reaping device 30 is suspended and supported by the feeder 7 together with the cutting lifting mechanism 40. Alignment of the bolt holes in each coupling mechanism 80 and the positions of the coupling bolts 81 and the bolt holes while hanging on the feeder 7 so that it is not necessary to artificially support the loads of the second trimming device 30 and the trimming lifting mechanism 40 By performing the alignment, the connecting bolt 81 can be easily attached. The second trimming device 30 and the trimming lifting mechanism 40 can be assembled to the feeder 7 by tightening and fixing the connecting bolt 81 to the upper and lower support portions 7c.

  An engine 4 is provided below the driver's seat 3 (see FIG. 1) of the self-propelled aircraft, and the transmission structure in which the driving force of the engine 4 is transmitted to the traveling device 1, the threshing device 10, and the pre-cutting processing unit 20 is shown in FIG. As shown in FIG.

  That is, the output from the output shaft 4 a of the engine 4 is transmitted to the input shaft 91 a of the hydrostatic continuously variable transmission 91 via the belt transmission mechanism 90, and from the output shaft 91 b of the hydrostatic continuously variable transmission 91. Is transmitted to the left and right traveling apparatuses 1 via a mission 93 having a sub-transmission mechanism 93a and a steering clutch 93b located inside the mission case 92.

  The output from the output shaft 4a of the engine 4 is transmitted to the input shaft 95a of the counter case 95 via the belt transmission mechanism 94, and the output from the output shaft 95b of the counter case 95 is threshed via the belt transmission mechanism 96. It is transmitted to the handling cylinder 11 of the apparatus 10. The driving force of the input shaft 95 a of the counter case 95 is transmitted to the intermediate shaft 98 through the belt transmission mechanism 97, and from the intermediate shaft 98, the tang 12, the first screw conveyor 13, the second screw conveyor 14 of the threshing device 10. These are transmitted to the sorting device drive shaft 15 and the waste straw chopper 16.

The driving force of the intermediate shaft 98 is transmitted to the input shaft 7d of the feeder conveyor 7a via the belt transmission mechanism 99. The driving force of the input shaft 7d is transmitted to the intermediate shaft 101 via the chain transmission mechanism 100, and the driving force of the intermediate shaft 101 is transmitted to the rotary auger driving shaft 103 via the chain transmission mechanism 102. The driving force of 101 is transmitted to the driving mechanism 21a of the first reaping device 21 via the belt transmission mechanism 104, and the driving force of the intermediate shaft 101 is scraped via the transmission mechanism 105 using the chain and the belt, and the reel driving shaft 24a is driven. To communicate. The driving force of the intermediate shaft 101 is transmitted to one end side of the transmission shaft 107 via a transmission mechanism 106 using a chain and a belt, and the second cutting device 30 is connected to the other end side of the transmission shaft 107 via the chain transmission mechanism 108. This is transmitted to the drive mechanism 30a.
The transmission shaft 107 is accommodated in the transmission case 32. A universal joint 109 is provided on the intermediate shaft 101, and when the pre-cutting processing unit 20 is removed from the feeder 7, the transmission system from the intermediate shaft 101 to the pre-cutting processing unit 20 is separated by the universal joint 109.

  As shown in FIG. 5, the driving mechanism 30a for driving the second mowing device 30 and the second mowing height detection mechanism 60 are supported by the mowing device stay 31, and the mowing lifting mechanism 40 and the feeder tip end portion. 7b can be attached to and detached from the feeder 7 together with the second mowing device 30.

Combine side view (A) is a side view of the pre-cutting processing unit in the one-stage mowing work state, (B) is a side view of the pre-cutting processing unit in the two-step mowing work state, Partial plan view of the pre-cutting processing unit Side view of the lifting mechanism Side view of the lifting mechanism Side view of second cutting height detection mechanism (A) is a side view of the locking mechanism and the coupling mechanism in a separated state, and (B) is a side view of the locking mechanism and the coupling mechanism in a coupled state. Block diagram of second reaping device lifting control Explanatory drawing of 1st cutting height, 2nd cutting height, non-working height of 1st cutting device Transmission structure diagram

Explanation of symbols

7 Feeder 7b Feeder tip 10 Threshing device 20 Pre-cutting processing unit 21 First mowing device 30 Second mowing device 80 Connection mechanism 85 Locking mechanism 86 Hook

Claims (2)

A pre-cutting processing unit equipped with a first reaping device that cuts planted stalks, a feeder that supplies the scouring stalks from the pre-cutting processing unit to the threshing device, and on the rear side of the machine from the first reaping device. A combine equipped with a second reaping device for reaping planted stem pods on the plant side from the first reaping device,
The second reaping device is supported by the feeder so as to be movable up and down in a lowered use state and a raised storage state,
In a state where the second reaping device is raised to the raised retracted state, the cutting edge of the second reaping device is higher than the lower end of the distal end portion at the rear side of the distal end portion of the feeder in a side view of the body. Combine configured to be located.   Provided between the second reaping device and the feeder is a locking mechanism in which the second reaping device is suspended and supported by the feeder via a hook, and a connection mechanism in which the second reaping device is fastened and fixed to the feeder. The combine according to claim 1.

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