harvester

Abstract

To provide a harvester which quickly operates a position, height, and rotation speed of a raking reel to be suitable for laid-down crops.SOLUTION: An artificially operable setting operation tool is provided. A control part 73 is provided in which, when the setting operation tool is operated, a raking reel 11 is moved to a preset setting front / rear position C1 by a position changing actuator 25, the raking reel 11 is moved to a preset setting height C2 by a height changing actuator 26, and the raking reel 11 changes a rotation speed to a preset setting speed by a rotation speed changing actuator 37.SELECTED DRAWING: Figure 8

Description

[Technical Field]

[0001] The present invention relates to a configuration of a reaping unit in a harvester. [Background technology]

[0002] A general-purpose combine, which is an example of a harvester, is disclosed in Patent Document 1. In Patent Document 1, a raking reel is provided in the reaping section, which is driven to rotate around an axis extending in the left-right direction to rake in crops in a field toward the rear.

[0003] In Patent Document 1, an operator in the driver's section operates a reel forward / backward adjustment switch to change the position of the picking reel relative to the reaping section. An operator operates a reel lift switch to change the height of the picking reel relative to the reaping section. An operator operates a reel speed change switch to change the rotation speed of the picking reel. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2006-271240 Summary of the Invention [Problem to be solved by the invention]

[0005] In farm fields, there may be areas where the crop has fallen. In order for the harvesting unit to harvest the crop without difficulty in areas where the crop has fallen, there are appropriate positions, heights, and rotation speeds of the raking reel relative to the harvesting unit.

[0006] As a result, when the harvester moves from a part of the field where the crops are upright to a part of the field where the crops are lying down, the operator in the operating section must quickly move the scraping reel to the appropriate position, change the scraping reel to the appropriate height, and change the scraping reel to the appropriate rotation speed, so there is room for improvement in terms of operability.

[0007] An object of the present invention is to configure a harvester so that the position, height, and rotation speed of the raking reel can be quickly adjusted to conditions suitable for lodged crops. [Means for solving the problem]

[0008] The harvester of the present invention includes a cutting unit that harvests crops from a field and has a raking reel that is driven to rotate around an axis that is aligned in the left-right direction to rake crops from the field backward, a position change actuator that can change the position of the raking reel back and forth relative to the cutting unit, a height change actuator that can change the height of the raking reel up and down relative to the cutting unit, and a rotational speed change actuator that can change the rotational speed of the raking reel. a lifting actuator capable of lifting and lowering the reaping unit; and a setting operation tool that can be manually operated, and when the setting operation tool is operated, the position change actuator moves the take-in reel to a preset set forward or backward position, the height change actuator moves the take-in reel to a preset set height, and the rotation speed change actuator changes the rotation speed of the take-in reel to a preset set speed. and moving the reaping unit to a preset lift height by the lift actuator. A control unit is provided.

[0009] According to the present invention, when the harvester moves from a part of the field where the crop is standing to a part of the field where the crop is lying down, the operator only has to operate the setting operation tool. When the setting operating device is operated, the control unit activates the position change actuator, height change actuator and rotation speed change actuator, moving the take-up reel to a preset forward or backward position, moving the take-up reel to a preset height and changing the rotation speed of the take-up reel to a preset speed.

[0010] In this case, the set forward / backward position may be set to a position of the picking reel that is appropriate for the fallen crop, the set height may be set to a height of the picking reel that is appropriate for the fallen crop, and the set speed may be set to a rotation speed of the picking reel that is appropriate for the fallen crop. This allows the operator to quickly adjust the position, height and rotation speed of the raking reel to suit the fallen crops simply by operating the setting operation tool, thereby improving the operability of the cutting unit. In a part of a field where the crops have fallen over, there is an appropriate height for the reaping unit to be able to harvest the crops without difficulty. According to the present invention, when the setting operation tool is operated, the raking reel moves to the set forward / backward position, the raking reel moves to the set height, the rotation speed of the raking reel is changed to the set speed, and the lifting actuator is actuated to move the reaping unit to a preset set lifting height. In this case, the set lifting height can be set to a height of the reaping unit appropriate for the fallen crop. This allows the operator to quickly adjust the position, height and rotation speed of the raking reel, as well as the height of the cutting unit, to a state suitable for the fallen crop, simply by operating the setting operating device, which is advantageous in terms of improving the operability of the cutting unit. The harvester of the present invention is equipped with a cutting unit that has a raking reel that is rotated around an axis that runs in the left-right direction to rake crops into the field backward, and that harvests crops from the field; a position change actuator that can change the position of the raking reel forward or backward relative to the cutting unit; a height change actuator that can change the height of the raking reel up or down relative to the cutting unit; a rotational speed change actuator that can change the rotational speed of the raking reel; a traveling transmission; a traveling speed change actuator that can change the traveling speed by operating the traveling transmission; and a setting operation device that can be operated manually.When the setting operation device is operated, the position change actuator moves the raking reel to a predetermined set forward or backward position, the height change actuator moves the raking reel to a predetermined set height, the rotational speed change actuator changes the rotational speed of the raking reel to a predetermined set speed, and a control unit that operates the traveling speed change actuator to the predetermined set speed position. According to the present invention, when the harvester moves from a part of the field where the crop is standing to a part of the field where the crop is lying down, the operator only has to operate the setting operation tool. When the setting operating device is operated, the control unit activates the position change actuator, height change actuator and rotation speed change actuator, moving the take-up reel to a preset forward or backward position, moving the take-up reel to a preset height and changing the rotation speed of the take-up reel to a preset speed. In this case, the set forward / backward position may be set to a position of the picking reel that is appropriate for the fallen crop, the set height may be set to a height of the picking reel that is appropriate for the fallen crop, and the set speed may be set to a rotation speed of the picking reel that is appropriate for the fallen crop. This allows the operator to quickly adjust the position, height and rotation speed of the raking reel to suit the fallen crops simply by operating the setting operation tool, thereby improving the operability of the cutting unit. In a part of a field where the crops have fallen over, there is an appropriate travel speed for the harvester to be able to harvest the crops without difficulty using the reaping unit. According to the present invention, when the setting operation device is operated, the take-in reel moves to the set forward / backward position, the take-in reel moves to the set height, and the rotational speed of the take-in reel is changed to the set speed. In addition, the travel speed change actuator is actuated to operate the harvester's travel transmission to a preset set speed position. In this case, the set speed position can be set to a travel speed of the harvester appropriate for the lodged crop. This allows the operator to quickly adjust the position, height and rotation speed of the raking reel, as well as the travel speed of the harvester, to conditions suitable for the fallen crop, simply by operating the setting operating device, which is advantageous in terms of improving the operability of the cutting unit.

[0011] In the present invention, it is preferable to provide a set front-rear position adjuster that can be manually operated to adjust the set front-rear position.

[0012] In a part of the field where the crop has fallen, the set forward or backward position of the raking reel may be too far forward or too far backward depending on the condition of the field and the condition of the crop. According to the present invention, the operator can adjust the set front and rear positions of the raking reel by operating the set front position adjustment device, so that the appropriate set front and rear positions of the raking reel can be obtained depending on the condition of the field and the condition of the crop, thereby improving the harvesting performance of the cutting unit for fallen crops.

[0013] In the present invention, it is preferable that a position manipulation device that can be operated manually is provided, and when the position manipulation device is operated, the position change actuator operates based on the operation of the position manipulation device, taking priority over the control unit.

[0014] In parts of a field where crops have fallen, the degree of lodging of the crops may vary, with some areas having a large amount of lodging and others having less lodging, so the set forward or backward positions to which the raking reel has been moved by operating the setting operating device may no longer be appropriate.

[0015] According to the present invention, when the above-mentioned situation occurs, the operator can operate the position control device to move the raking reel from the set forward or backward position. This allows the raking reel to be positioned appropriately depending on the degree of lodging of the crop, thereby improving the harvesting performance of the reaping unit for the lodged crop.

[0016] In the present invention, it is preferable that a height control device that can be operated manually is provided, and when the height control device is operated, the height change actuator operates based on the operation of the height control device, taking priority over the control unit.

[0017] In parts of a field where crops have fallen, the degree of lodging of the crops may vary, with some areas having a large amount of lodging and others having less lodging, so the set height to which the raking reel is moved by operating the setting operating device may no longer be the appropriate height.

[0018] According to the present invention, when the above-mentioned situation occurs, the operator can operate the height control device to move the raking reel from the set height. This allows the raking reel to be set to an appropriate height depending on the degree of lodging of the crop, thereby improving the harvesting performance of the reaping unit for the lodged crop.

[0019] In the present invention, it is preferable that a rotation speed manipulation device that can be manually operated is provided, and when the rotation speed manipulation device is manipulated, the rotation speed change actuator operates based on the manipulation of the rotation speed manipulation device, taking priority over the control unit.

[0020] In parts of a field where crops have fallen, the degree of lodging of the crops can vary, with some areas having a large amount of lodging and others having less lodging, so the high speed setting for the raking reel, set by operating the setting operating device, may no longer be the appropriate rotation speed.

[0021] According to the present invention, when the above-mentioned situation occurs, the operator can change the rotation speed of the picking reel from the set speed by operating the rotation speed control device. This allows the picking reel to rotate at an appropriate speed depending on the degree of lodging of the crop, thereby improving the harvesting performance of the reaping unit for the lodged crop.

[0022]

[0023]

[0024] In the present invention, it is preferable that a manually operable lifting operation device is provided, and when the lifting operation device is operated, the lifting actuator operates based on the operation of the lifting operation device, taking priority over the control unit.

[0025] In parts of a field where crops have fallen, the degree of lodging of the crops may vary, with some areas having a large amount of lodging and others having less lodging, so the height of the cutting section set by operating the setting operating tool may no longer be appropriate.

[0026] According to the present invention, when the above-mentioned situation occurs, the operator can change the height of the reaping unit from the set height by operating the lifting operation tool. This allows the reaping unit to be set at an appropriate height depending on the degree of lodging of the crop, thereby improving the harvesting performance of the reaping unit against lodged crops.

[0027] In the present invention, it is preferable that the setting operation tool is provided on the lifting operation tool.

[0028] In a harvester, the operator operates the lifting operation tool relatively frequently. According to the present invention, since the setting operation tool is provided on the lifting operation tool, it becomes easier for the worker to operate the setting operation tool.

[0029]

[0030]

[0031] In the present invention, it is preferable to provide a speed setting position adjuster that can adjust the speed setting position by manual operation.

[0032] In parts of a field where crops have fallen, the speed setting of the harvester's travel transmission may be too high or too low depending on the condition of the field and the condition of the crop. According to the present invention, the operator can adjust the set speed position of the harvester's traveling transmission by operating the set speed position adjustment device, thereby obtaining an appropriate set speed position for the harvester's traveling transmission depending on the condition of the field and the condition of the crop, thereby improving the harvesting performance of the cutting unit for fallen crops.

[0033] In the present invention, it is preferable that a manually operable speed change device is provided, and when the speed change device is operated, the traveling speed change actuator operates based on the operation of the speed change device, taking priority over the control unit.

[0034] In parts of a field where crops have fallen, the degree of lodging of the crops may vary, with some areas having a large amount of lodging and others having less lodging, so the set speed position to which the harvester's travel transmission is operated by operating the setting operating tool may no longer be the appropriate speed position.

[0035] According to the present invention, when the above-described situation occurs, the operator can operate the speed changer to shift the traveling transmission of the harvester from the set speed position. This allows the harvester to obtain an appropriate traveling speed depending on the degree of lodging of the crop, thereby improving the harvesting performance of the reaping unit for the lodged crop.

[0036] In the present invention, when the setting operation tool is operated, the following are set: a longitudinal position of the take-up reel during operation when the setting operation tool is operated; a height of the take-up reel during operation when the setting operation tool is operated; and a speed of the take-up reel during operation when the setting operation tool is operated. and the lifting height of the reaping unit during operation of the setting operation tool. When the setting operation tool is operated after the operation of the control unit is completed, the position change actuator moves the take-in reel to the operation front-rear position, the height change actuator moves the take-in reel to the operation height, and the rotation speed change actuator changes the rotation speed of the take-in reel to the operation speed. and moving the reaping unit to the operating lift height by the lift actuator. A return control is preferably provided.

[0037] According to the present invention, when a harvester moves from a part of a field where crops are upright to a part of a field where crops are lodged and an operator operates the setting operation tool, the operational front-rear position of the take-up reel when the setting operation tool is operated (the position of the take-up reel before moving to the set front-rear position) is stored. The operational height of the take-up reel when the setting operation tool is operated (the height of the take-up reel before moving to the set height) is stored. The operational speed of the take-up reel when the setting operation tool is operated (the rotational speed of the take-up reel before being changed to the set speed) is stored.

[0038] After the control unit has finished operating, when the harvester moves from the part of the field where the crops are lodged to the part where the crops are upright, the operator simply operates the setting operation tool, which activates the position change actuator, height change actuator, and rotational speed change actuator, returning the picking reel to its operating front / rear position, the picking reel to its operating height, and the rotational speed of the picking reel to its operating speed. Therefore, by simply operating the setting operation device, the operator can quickly return the position, height, and rotation speed of the raking reel to the state they were in before the setting operation device was operated, which is advantageous in terms of improving the operability of the cutting unit.

[0039]

[0040]

[0041] According to the present invention, when a harvester moves from a part of a field where the crops are standing to a part of the field where the crops are lying down and an operator operates the setting operating tool, in addition to storing the front and rear positions of the raking reel when operating, the height of the raking reel when operating, and the speed of the raking reel when operating, the lifting height of the cutting section when operating the setting operating tool (the height of the cutting section before moving to the set lifting height) is also stored.

[0042] After the control unit has finished operating, when the harvester moves from the part of the field where the crops are lying down to the part where the crops are standing up, the operator simply operates the setting operation tool, which returns the raking reel to its operating position and height, returns the rotational speed of the raking reel to its operating speed, and activates the lifting actuator to return the reaping unit to its operating lifting height. Therefore, by simply operating the setting operation tool, the operator can quickly return the position, height and rotation speed of the raking reel and the height of the cutting unit to the state they were in before the setting operation tool was operated, which is advantageous in terms of improving the operability of the cutting unit.

[0043] In the present invention, A memory unit is provided which, when the setting operation tool is operated, stores the operation longitudinal position of the take-up reel when the setting operation tool is operated, the operation height of the take-up reel when the setting operation tool is operated, the operation speed of the take-up reel when the setting operation tool is operated, and the operation speed position of the traveling speed change device when the setting operation tool is operated, and a return control unit is provided which, when the setting operation tool is operated after the operation of the control unit has ended, moves the take-up reel to the operation longitudinal position with the position change actuator, moves the take-up reel to the operation height with the height change actuator, changes the rotation speed of the take-up reel to the operation speed with the rotation speed change actuator, and operates the traveling speed change device to the operation speed position with the traveling speed change actuator. This is preferable.

[0044] According to the present invention, when a harvester moves from a part of a field where crops are upright to a part of a field where crops are lodged and an operator operates the setting operation tool, the operational front-rear position of the take-up reel when the setting operation tool is operated (the position of the take-up reel before moving to the set front-rear position) is stored. The operational height of the take-up reel when the setting operation tool is operated (the height of the take-up reel before moving to the set height) is stored. The operational speed of the take-up reel when the setting operation tool is operated (the rotational speed of the take-up reel before being changed to the set speed) is stored. After the control unit has finished operating, when the harvester moves from the part of the field where the crops are lodged to the part where the crops are upright, the operator simply operates the setting operation tool, which activates the position change actuator, height change actuator, and rotational speed change actuator, returning the picking reel to its operating front / rear position, the picking reel to its operating height, and the rotational speed of the picking reel to its operating speed. Therefore, by simply operating the setting operation device, the operator can quickly return the position, height, and rotation speed of the raking reel to the state they were in before the setting operation device was operated, which is advantageous in terms of improving the operability of the cutting unit.

[0045] According to the present invention, when a harvester moves from a part of a field where crops are standing to a part of a field where crops are lying down and an operator operates the setting operating tool, in addition to storing the forward / backward position of the take-up reel when operating, the height of the take-up reel when operating, and the speed of the take-up reel when operating, the operating speed position of the harvester's traveling transmission when operating the setting operating tool (the speed position of the harvester's traveling transmission before it is operated to the set speed position) is also stored.

[0046] After the control unit has finished operating, when the harvester moves from the part of the field where the crops are lodged to the part where the crops are upright, the operator simply operates the setting operating device, which returns the raking reel to its operating front-to-rear position and operating height, and returns the rotational speed of the raking reel to the operating speed.In addition, the travel speed change actuator is activated, and the harvester's travel transmission returns to the operating speed position. Therefore, by simply operating the setting operating device, the operator can quickly return the position, height and rotation speed of the raking reel and the speed position of the harvester's travel transmission to the state before the setting operating device was operated, which is advantageous in terms of improving the operability of the cutting unit.

[0047] In the present invention, it is preferable that the reaping unit is provided with a working clutch capable of transmitting and disconnecting power, and when the working clutch is operated to a disconnected state, operation of the control unit is stopped.

[0048] The harvester is equipped with a working clutch that can transmit and disconnect power to the cutting section, and is configured so that when the working clutch is operated to the transmission state, the cutting section operates, and when the working clutch is operated to the disconnection state, the cutting section stops.

[0049] According to the present invention, when the work clutch is disengaged and the reaping unit is stopped, the control unit does not operate even if the setting operation tool is operated. This makes it possible to prevent a situation in which the setting operation tool is mistakenly operated and the position change actuator or the like is activated during non-harvesting work when the reaping unit is stopped. [Brief explanation of the drawings]

[0050] [Figure 1] FIG. [Figure 2] FIG. [Figure 3] FIG. [Figure 4] FIG. [Figure 5] FIG. 2 is a schematic diagram showing a transmission system of the reaping unit. [Figure 6] FIG. 4 is a rear view of the upper part of the operating lever. [Figure 7] FIG. 4 is a right side view of the upper part of the operating lever. [Figure 8] FIG. 2 is a diagram showing the state of cooperation between the control device and each part. [Figure 9] FIG. 2 is a diagram showing the state of cooperation between the control device and each part. [Figure 10] FIG. 10 is a diagram showing a control flow when a setting button is pressed. [Figure 11] FIG. 10 is a diagram showing a control flow when a setting button is pressed. DETAILED DESCRIPTION OF THE INVENTION

[0051] Figures 1 to 11 show a general-purpose combine, which is an example of a harvester, where F indicates the forward direction, B indicates the backward direction, U indicates the upward direction, D indicates the downward direction, R indicates the right direction, and L indicates the left direction.

[0052] (Overall configuration of the combine) As shown in Figures 1 and 2, a machine frame 1 is supported by a crawler-type traveling device 2, and a reaping unit 3 and a driving unit 4 are provided at the front of the machine frame 1. A threshing device 5 is provided at the left side of the machine frame 1, and a grain tank 6 is provided at the right side of the machine frame 1, and a crop discharge device 7 is connected to the lower rear part of the grain tank 6.

[0053] The conveying device 8 is supported at the front of the threshing device 5 so as to be able to swing up and down around an axis along the left-right direction, and extends forward from the threshing device 5. The reaping unit 3, which is connected to the front of the conveying device 8 and harvests crops in the field, is provided at the front of the machine frame 1, and the reaping unit 3 and the conveying device 8 can be raised and lowered.

[0054] As the combine moves forward, crops in the field are introduced into the reaping unit 3 and harvested, and the crops are transported from the reaping unit 3 through a conveying device 8 and supplied to the threshing device 5. The crops are threshed by the threshing device 5, and the crops threshed and collected by the threshing device 5 are stored in the grain tank 6. When the grain tank 6 is full, the crops in the grain tank 6 are discharged by a discharge device 7.

[0055] (Configuration of the harvesting section) As shown in Figures 1 to 4, the mowing unit 3 is provided with a mowing frame 9, a grass dividing tool 10, a raking reel 11, a cutting device 12, a cross-feed screw 13, etc. The mowing frame 9 is the framework of the mowing unit 3 and is provided across the entire width of the mowing unit 3 in the left-right direction. The rear of the mowing frame 9 is connected to the front of the transport device 8.

[0056] 3 and 4, right and left side walls 14 are connected to the right and left ends of the mowing frame 9. Right and left grass dividing tools 10 are connected to the front ends of the side walls 14 and extend forward from the side walls 14.

[0057] A take-in reel 11 is provided above the cutting frame 9, and a clipper-type cutting device 12 is provided in front of the cutting frame 9. A cross-feed screw 13 is supported across the right and left side walls 14 so as to be rotatable about an axis extending in the left-right direction.

[0058] As the combine moves forward, the crops in the field are weeded by the right and left weeding tools 10, and then scraped backward into the reaping frame 9 by the raking reel 11, and the base of the crop is cut by the cutting device 12. Once the crops are introduced into the reaping frame 9, they are transported toward the center of the reaping frame 9 by the cross feed screw 13, and are sent from the cross feed screw 13 to the conveying device 8, from which they are supplied to the threshing device 5.

[0059] (Structure of the raking reel) As shown in Figures 3 and 4, the take-in reel 11 is provided with right and left rotating frames 15, a plurality of frames 16 attached around the outer periphery of the right and left rotating frames 15, a number of tines 17 attached downward to the frames 16, and a drive shaft 18 attached around the center of the right and left rotating frames 15.

[0060] A fulcrum shaft 19 is supported at the top rear part of the mowing frame 9 so as to be rotatable about an axis P1 along the left-right direction, and right and left support frames 20 are connected to the right and left parts of the fulcrum shaft 19. The support frames 20 are arranged in a position above the grass dividing tool 10 and the side wall 14 along the front-to-rear direction.

[0061] Right and left support members 21 are attached to the front of the support frame 20 so as to be movable back and forth along the support frame 20. In the take-up reel 11, the right and left portions of the drive shaft 18 are rotatably supported by the support members 21, and the take-up reel 11 is supported by the support members 21 so as to be rotatable around an axis P2 that extends in the left-right direction.

[0062] As will be described later, the take-in reel 11 is driven to rotate clockwise in FIG. 3 around a central axis P2. With the above configuration, a reaping unit 3 is provided that harvests crops in the field and has a raking reel 11 that is driven to rotate around an axis P2 that runs in the left-right direction to rake in crops in the field toward the rear.

[0063] (Configuration for changing the position of the take-in reel forward and backward, and configuration for changing the height of the take-in reel up and down) 3, 4, and 5, an operating shaft 22 is supported at the rear of the right and left support frames 20 so as to be rotatable about an axis P3 extending in the left-right direction. Right and left operating arms 23 are connected to the right and left portions of the operating shaft 22, and right and left linking rods 24 are connected between the operating arms 23 and the support members 21.

[0064] An electric cylinder 25 (corresponding to a position change actuator) is connected across the right support frame 20 and the right operating arm 23. The electric cylinder 25 is operated to extend and retract by a built-in electric motor (not shown).

[0065] When the electric cylinder 25 extends and retracts, the right operating arm 23 is swung back and forth about the axis P3, and the left operating arm 23 is swung back and forth about the axis P3 by the operating shaft 22. When the operating arm 23 is swung back and forth, the support member 21 is moved back and forth along the support frame 20 via the linking rod 24, and the position of the raking reel 11 relative to the reaping unit 3 is changed back and forth along the support frame 20.

[0066] Right and left lifting cylinders 26 (corresponding to height change actuators) are connected between the side walls 14 and the support frame 20, and the lifting cylinders 26 are single-acting hydraulic cylinders. When the lifting cylinders 26 extend and retract, the support frame 20 is swung up and down around the axis P1, and the height of the raking reel 11 relative to the reaping unit 3 is changed up and down.

[0067] With the above configuration, an electric cylinder 25 (position change actuator) is provided that can change the position of the take-in reel 11 back and forth relative to the reaping unit 3. A lift cylinder 26 (height change actuator) is provided that can change the height of the take-in reel 11 up and down relative to the reaping unit 3.

[0068] (Outline of the transmission system of the reaping unit) As shown in Figure 8, the power of the engine 27 (see Figure 1) mounted on the machine frame 1 is transmitted to the reaping / threshing clutch 28 (corresponding to the working clutch), from which it is transmitted to the threshing device 5, and from which it is transmitted to the reaping section 3 as described below.

[0069] A clutch lever 29 for operating the reaping / threshing clutch 28 is provided on the driving section 4 (see Figures 1 and 2). When the clutch lever 29 is operated to the reaping / threshing position A1, the power of the engine 27 is transmitted to both the reaping section 3 and the threshing device 5, and both the reaping section 3 and the threshing device 5 operate (corresponding to the transmission state of the working clutch).

[0070] When the clutch lever 29 is operated to the threshing position A2, the power of the engine 27 is transmitted to the threshing device 5, and the threshing device 5 operates. The power of the engine 27 is not transmitted to the reaping unit 3, and the reaping unit 3 stops (corresponding to the working clutch being disengaged). When the clutch lever 29 is operated to the stop position A3, the power of the engine 27 is not transmitted to both the reaping unit 3 and the threshing device 5, and both the reaping unit 3 and the threshing device 5 stop (equivalent to the working clutch being disengaged).

[0071] (Configuration of the transmission system to the cutting device, cross-feed screw, and raking reel in the reaping section) As shown in Figures 3, 4, and 5, a transmission shaft 30 is supported along the left-right direction at the lower rear part of the reaping frame 9, and power from the reaping and threshing clutch 28 is transmitted to the transmission shaft 30 via a transmission chain 31.

[0072] A drive mechanism 32 is provided to reciprocate the cutting blade of the cutting device 12, and the power of the transmission shaft 30 is transmitted to the drive mechanism 32 via a transmission belt 33, causing the cutting blade of the cutting device 12 to reciprocate by the drive mechanism 32. The power of the transmission shaft 30 is transmitted to the cross feed screw 13 via a transmission chain 34, causing the cross feed screw 13 to rotate clockwise in Figure 3.

[0073] A split pulley type continuously variable transmission 35 is provided on the right side wall 14 of the reaping unit 3, and the power of the transmission shaft 30 is transmitted to the continuously variable transmission 35 via a transmission chain 36. An electric motor 37 (corresponding to a rotational speed changing actuator) is provided to change the speed of the continuously variable transmission 35.

[0074] A transmission shaft 38 is supported by the right support frame 20 concentrically with the axis P1, and power from the continuously variable transmission 35 is transmitted to the transmission shaft 38 via a transmission chain 39. An intermediate rotor 40 is supported by the right support frame 20. A support arm 42 is supported by the right linkage rod 24 so as to be swingable back and forth, an intermediate rotor 41 is supported at the upper end of the support arm 42, and a biasing mechanism 43 is provided that biases the support arm 42 rearward.

[0075] A transmission chain 44 is attached between a drive sprocket 38a connected to the transmission shaft 38 and a driven sprocket 18a connected to the drive shaft 18 of the take-in reel 11, and the transmission chain 44 is attached to intermediate rotors 40, 41.

[0076] The power of transmission shaft 30 is transmitted to continuously variable transmission 35, which is operated by electric motor 37 to change the speed of the power of transmission shaft 30. The power whose speed has been changed by continuously variable transmission 35 is transmitted to transmission shaft 38, and then to drive shaft 18 of take-up reel 11 via transmission chain 44, so that take-up reel 11 is rotated clockwise in FIG.

[0077] Even if the position of the take-in reel 11 is changed forward or backward by the electric cylinder 25, the relay rotor 41 moves forward or backward together with the right link rod 24, so that the tension of the transmission chain 44 is maintained in an appropriate state.

[0078] With the above configuration, the electric motor 37 (rotational speed changing actuator) that can change the rotational speed of the take-in reel 11 is provided.

[0079] (Operating lever configuration) 6 and 7, an operating lever 47 (corresponding to a lifting operating tool) is provided on the driving section 4 (see FIGS. 1 and 2). The operating lever 47 can be operated in the front-rear and left-right directions, and the operating position of the operating lever 47 is input to a control device 50 (see FIGS. 8 and 9).

[0080] A setting button 51 (corresponding to a setting operating tool) is provided on the rear surface 47a above the operating lever 47 facing the operator seated on the driver's unit 4, and a horizontal return button 52 is provided on the front side opposite the rear surface 47a of the operating lever 47.

[0081] A front button 53 (corresponding to a position operation tool) is provided on the front right portion of the rear surface 47a of the operation lever 47. A rear button 54 (corresponding to a position operation tool) is provided on the rear surface 47a of the operation lever 47 below the setting button 51.

[0082] An up button 55 (corresponding to a height operating tool) and a down button 56 (corresponding to a height operating tool) are provided on the rear surface 47a of the operating lever 47 above and below the setting button 51. A right-up button 57 and a left-up button 58 are provided on the rear surface 47a of the operating lever 47 to the right and left of the setting button 51. As shown in FIGS. 8 and 9, the driving section 4 is provided with a rotary speed dial 59 (corresponding to a rotary speed operating tool).

[0083] For example, when an operator holds the operation lever 47 in his / her right hand, the operator can use the thumb of his / her right hand to press and operate the setting button 51, the back button 54, the up button 55, the down button 56, the right lift button 57, and the left lift button 58. The operator can use the index finger of his / her right hand to press and operate the horizontal return button 52 and the front button 53.

[0084] Operation signals of the setting button 51 , horizontal return button 52 , forward button 53 and backward button 54 , up button 55 and down button 56 , right up button 57 and left up button 58 , and speed dial 59 are input to the control device 50 .

[0085] (Operation to change the position, height and rotation speed of the feed reel) 6, 7, and 8, an electromagnetically operated control valve 60 is provided to supply and discharge hydraulic oil to the lift cylinder 26. When an operator presses the front button 53, the back button 54, the up button 55, the down button 56, and the speed dial 59, the control device 50 operates the electric cylinder 25, the control valve 60 (lift cylinder 26), and the electric motor 37, and the following operations are performed.

[0086] When the worker presses the front button 53, the electric cylinder 25 contracts, the linking rod 24 is pushed forward, and the pick-up reel 11 moves forward along the support frame 20. When the worker stops pressing the front button 53, the electric cylinder 25 stops, and the forward movement of the pick-up reel 11 stops.

[0087] When the worker presses the rear button 54, the electric cylinder 25 extends, the linking rod 24 is pulled rearward, and the take-up reel 11 moves rearward along the support frame 20. When the worker stops pressing the rear button 54, the electric cylinder 25 stops, and the take-up reel 11 stops moving rearward.

[0088] When the worker presses the up button 55, the lifting cylinder 26 extends, causing the support frame 20 to swing upward, increasing the height of the take-up reel 11. When the worker stops pressing the up button 55, the lifting cylinder 26 stops, and the upward movement of the take-up reel 11 stops.

[0089] When the worker presses the down button 56, the lifting cylinder 26 contracts, the support frame 20 swings downward, and the height of the take-up reel 11 decreases. When the worker stops pressing the down button 56, the lifting cylinder 26 stops, and the downward movement of the take-up reel 11 stops.

[0090] When the operator operates the speed dial 59, the electric motor 37 operates the continuously variable transmission 35, and the rotational speed of the take-up reel 11 is changed to the high speed side or the low speed side so that the rotational speed of the take-up reel 11 corresponds to the operating position of the speed dial 59.

[0091] (Configuration of the lifting and lowering operation system for the reaping unit) As shown in Fig. 8, a lifting cylinder 48 (corresponding to a lifting actuator) is connected between the machine frame 1 and the transport device 8, and the reaping unit 3 and the transport device 8 are raised and lowered by the lifting cylinder 48. The lifting cylinder 48 is a single-acting hydraulic cylinder, and an electromagnetically operated control valve 49 is provided to supply and discharge hydraulic oil to and from the lifting cylinder 48.

[0092] When the operator operates the operating lever 47 rearward from the neutral position, the control device 50 operates the control valve 49, the lifting cylinder 48 is extended, and the reaping unit 3 is raised. When the operator returns the operating lever 47 to the neutral position, the lifting cylinder 48 stops, and the raising of the reaping unit 3 stops.

[0093] When the operator operates the operating lever 47 forward from the neutral position, the control device 50 operates the control valve 49, the lifting cylinder 48 contracts, and the reaping unit 3 is lowered. When the operator returns the operating lever 47 to the neutral position, the lifting cylinder 48 stops, and the descent of the reaping unit 3 stops.

[0094] (Lifting control of the reaping unit) As shown in Figure 8, a flat ground sensor 61 having a predetermined width is supported at the bottom of the cutting unit 3 so that it can swing up and down around an axis P4 along the left-right direction, and the ground sensor 61 is biased downward by a spring (not shown).

[0095] A height sensor 62 is provided to detect the angle of the ground sensor 61 relative to the reaping unit 3, and the detection value of the height sensor 62 is input to the control device 50. By detecting the angle of the ground sensor 61 relative to the reaping unit 3, the height of the reaping unit 3 relative to the ground surface is detected.

[0096] A lifting control unit 71 as software is provided in the control device 50. A dial-operated mowing height setting unit 63 is provided in the driving unit 4 (see FIGS. 1 and 2), and an operation signal from the mowing height setting unit 63 is input to the control device 50, allowing the set mowing height to be set by the mowing height setting unit 63. The ground sensor 61 has a predetermined width within a range in which it can detect the height of the mowing unit 3 relative to the ground when it comes into contact with the ground, and the set mowing height is set as a numerical value within the range that the ground sensor 61 can detect.

[0097] When the cutting unit 3 is raised to a position where the ground sensor 61 does not touch the ground (when the ground sensor 61 is located at the lower limit of the swing range), the lifting / lowering control unit 71 is stopped. When the operating lever 47 is operated forward from the neutral position, the cutting unit 3 is lowered, and the ground sensor 61 touches the ground (when the ground sensor 61 rises slightly from the lower limit of the swing range), the lifting / lowering control unit 71 is activated.

[0098] When the lifting control unit 71 is activated, the lifting control unit 71 operates the control valve 49 and extends and retracts the lifting cylinder 48 so that the height of the cutting unit 3 relative to the ground detected by the ground sensor 61 and the height sensor 62 becomes the set cutting height set by the cutting height setting unit 63, thereby automatically raising and lowering the cutting unit 3.

[0099] When the operating lever 47 is operated forward or backward from the neutral position while the lift control unit 71 is operating, the control valve 49 and the lift cylinder 48 operate based on the operation of the operating lever 47 as described above, taking priority over the lift control unit 71.

[0100] (Configuration of driving transmission system) 9, a hydrostatic continuously variable transmission 45 (corresponding to a traveling transmission) is provided, and the continuously variable transmission 45 can continuously change the speed between the forward and reverse sides around a neutral stop position. The power of the engine 27 is transmitted to the continuously variable transmission 45, where the speed is changed, and then transmitted to the traveling device 2.

[0101] A speed change lever 46 (corresponding to a speed change operating device) is provided in the driving section 4 (see FIGS. 1 and 2), and the speed change lever 46 can be operated among a neutral position N, a maximum forward speed position FM, and a maximum reverse speed position RM, and the operating position of the speed change lever 46 is input to the control device 50. A hydraulically operated speed change cylinder 69 (corresponding to a traveling speed change actuator) is provided in the continuously variable transmission 45, and the continuously variable transmission 45 is operated by the speed change cylinder 69.

[0102] When the operator operates the speed change lever 46 within the range of the neutral position N, the maximum forward speed position FM, and the maximum reverse speed position RM, the control device 50 operates the speed change cylinder 69, and the continuously variable transmission 45 is operated to a speed position corresponding to the operating position of the speed change lever 46.

[0103] A turning device (not shown) is provided that generates a speed difference between the right and left traveling devices 2, applies a brake to one of the right and left traveling devices 2, or drives the right and left traveling devices 2 in opposite directions, and when the operating lever 47 is operated in the left or right direction, the turning device makes a right turn or a left turn as described below.

[0104] When the operator operates the operating lever 47 to the right from the neutral position, the right traveling device 2 is driven at a slower speed than the left traveling device 2 (gentle right turn). When the operating lever 47 is operated further to the right, the right traveling device 2 is braked (right pivot turn). When the operating lever 47 is operated further to the right, the right traveling device 2 is driven in the opposite direction to the left traveling device 2 (right super pivot turn). When the operator operates the operating lever 47 to the left from the neutral position, the left traveling device 2 is operated in the same manner as described above, and a left gentle turn, a left pivot turn, or a left super pivot turn is performed.

[0105] The above configuration provides a continuously variable transmission 45 (traveling transmission) for traveling. A speed change cylinder 69 (traveling speed change actuator) is provided that can change the traveling speed by operating the continuously variable transmission 45 (traveling transmission).

[0106] (Rolling control system configuration) As shown in FIG. 1, in the right and left traveling devices 2, track frames 2b that support wheels 2a are supported on the machine frame 1 so as to be able to move up and down.

[0107] 9, there are provided a right rolling cylinder 64 that raises and lowers the track frame 2b of the right traveling unit 2 relative to the machine body frame 1, and an electromagnetically operated control valve 66 that supplies and discharges hydraulic oil to the right rolling cylinder 64. There are provided a left rolling cylinder 65 that raises and lowers the track frame 2b of the left traveling unit 2 relative to the machine body frame 1, and an electromagnetically operated control valve 67 that supplies and discharges hydraulic oil to the left rolling cylinder 65.

[0108] A rolling control unit 72 as software is provided in the control device 50. An inclination sensor (not shown) that detects the left and right inclination of the body frame 1 with respect to the horizontal plane is provided, and the detected value of the inclination sensor is input to the control device 50.

[0109] Based on the detection value of the tilt sensor, the rolling control unit 72 operates the control valves 66, 67 to operate the right rolling cylinder 64 and the left rolling cylinder 65 so that the body frame 1 is maintained horizontal, and the track frames 2b of the right and left traveling devices 2 are raised and lowered relative to the body frame 1.

[0110] 6 and 9, when the worker presses the right lift button 57, the rolling control unit 72 stops, the control valve 66 is operated, and the right rolling cylinder 64 lowers the track frame 2b of the right traveling unit 2 relative to the machine frame 1. When the worker stops pressing the right lift button 57, the right rolling cylinder 64 stops, and the descent of the track frame 2b of the right traveling unit 2 stops.

[0111] When the worker presses the left lift button 58, the rolling control unit 72 stops, the control valve 67 is operated, and the left rolling cylinder 65 lowers the track frame 2b of the left traveling unit 2 relative to the machine frame 1. When the worker stops pressing the left lift button 58, the left rolling cylinder 65 stops, and the descent of the track frame 2b of the left traveling unit 2 stops.

[0112] When the right ascent button 57 and the left ascent button 58 are pressed and the rolling control unit 72 is stopped, if the operator presses the horizontal return button 52, the rolling control unit 72 will be activated and the machine frame 1 will return to horizontal.

[0113] (Configuration of the raking reel, reaping unit, and continuously variable transmission for adjusting the operation to a state suitable for lodged crops) As shown in Figures 8 and 9, when the position of the take-up reel 11 relative to the cutting unit 3 is changed back and forth along the support frame 20, the position of the take-up reel 11 relative to the cutting unit 3 is detected by a position sensor 81, and the detection value of the position sensor 81 is input to the control device 50.

[0114] Within the forward and backward movement range of the take-in reel 11, a set forward and backward position C1, which is a position slightly rearward from the forefront position, is set in the control device 50. A set forward and backward position adjustment dial 79 (corresponding to the set forward and backward position adjuster) is provided in the driving unit 4 (see Figures 1 and 2), and the operator can adjust the set forward and backward position C1 by operating the set forward and backward position adjustment dial 79.

[0115] With the above configuration, a set front-rear position adjustment dial 79 (set front-rear position adjuster) is provided that can be manually operated to adjust the set front-rear position C1.

[0116] When the height of the take-in reel 11 relative to the reaping unit 3 is changed up or down, the height of the take-in reel 11 relative to the reaping unit 3 is detected by the height sensor 82, and the detection value of the height sensor 82 is input to the control device 50. Within the range of up and down movement of the take-in reel 11, a set height C2, which is a position slightly above the lowest position, is set in the control device 50.

[0117] When the electric motor 37 operates the continuously variable transmission 35 (see Figures 3 and 5) to change the rotational speed of the take-up reel 11, a rotational speed sensor 83 is provided that detects the rotational speed of the take-up reel 11 by detecting the speed change position of the continuously variable transmission 35, and the detection value of the rotational speed sensor 83 is input to the control device 50. Within the range in which the rotational speed of the take-up reel 11 can be changed, the maximum speed is set in the control device 50 as set speed C3 (see Figure 10).

[0118] When the cutting unit 3 is raised and lowered, a lifting height sensor 84 is provided which detects the vertical angle of the cutting unit 3 (conveying device 8) relative to the machine frame 1, thereby detecting the lifting height of the cutting unit 3 relative to the machine frame 1, and the detection value of the lifting height sensor 84 is input to the control device 50.

[0119] When the lifting / lowering control unit 71 is operated, the lowermost position of the set mowing height change range set by the mowing height setting unit 63 is set in the control device 50 as the set lifting height C4 (see Figure 10).

[0120] When the continuously variable transmission 45 is operated by the speed change lever 46 and the speed change cylinder 69, a speed position sensor 85 is provided to detect the speed position of the continuously variable transmission 45, and the detected value of the speed position sensor 85 is input to the control device 50. A speed position lower than the maximum forward speed position FM of the continuously variable transmission 45 is set in the control device 50 as a set speed position C5 (see FIG. 10).

[0121] A set speed position adjustment dial 80 (corresponding to the set speed position adjuster) is provided on the driving unit 4 (see Figures 1 and 2), and the operator can adjust the set speed position C5 to a higher or lower value by operating the set speed position adjustment dial 80.

[0122] With the above configuration, a speed setting position adjusting dial 80 (speed setting position adjusting tool) is provided which can adjust the speed setting position C5 by being manually operated.

[0123] (Operation of the raking reel, reaping unit and continuously variable transmission to adjust to conditions suitable for lodged crops) - 1 8 and 9, a storage unit 70 is provided in the control device 50. A lowering control unit 73 (corresponding to a control unit) as software is provided in the control device 50, and a return control unit 74 is also provided in the control device 50 as software.

[0124] As shown in Figures 8 to 11, when the clutch lever 29 is operated to the reaping and threshing position A1 (both the reaping section 3 and the threshing device 5 are operating) (step S1), when the operator presses and operates the setting button 51 (step S2), the operation described below is performed (step S3).

[0125] The position of the take-up reel 11 relative to the cutting unit 3 when the setting button 51 is pressed is detected by the position sensor 81, and the detection value of the position sensor 81 is stored in the memory unit 70 as the forward / backward position B1 of the take-up reel 11 when the setting button 51 is pressed.

[0126] The height of the take-up reel 11 relative to the cutting unit 3 when the setting button 51 is pressed is detected by the height sensor 82, and the detected value of the height sensor 82 is stored in the memory unit 70 as the operating height B2 of the take-up reel 11 when the setting button 51 is pressed.

[0127] The rotation speed of the take-up reel 11 when the setting button 51 is pressed is detected by the rotation speed sensor 83, and the detected value of the rotation speed sensor 83 is stored in the memory unit 70 as the operating speed B3 of the take-up reel 11 when the setting button 51 is pressed.

[0128] The lifting height of the cutting unit 3 relative to the body frame 1 when the setting button 51 is pressed is detected by the lifting height sensor 84, and the detected value of the lifting height sensor 84 is stored in the memory unit 70 as the lifting height B4 of the cutting unit 3 during operation when the setting button 51 is pressed.

[0129] The speed position of the continuously variable transmission 45 when the setting button 51 is pressed is detected by the speed position sensor 85, and the detected value of the speed position sensor 85 is stored in the memory unit 70 as the operating speed position B5 of the continuously variable transmission 45 when the setting button 51 is pressed.

[0130] (Operation of the raking reel, reaping unit and continuously variable transmission to adjust to conditions suitable for lodged crops) - 2 The above configuration provides a manually operable setting button 51 (setting operation tool). The setting button 51 (setting operation tool) is provided on the operation lever 47 (lifting operation tool).

[0131] When the setting button 51 (setting operation device) is operated, a memory unit 70 is provided which stores the forward / backward position B1 of the take-up reel 11 when the setting button 51 (setting operation device) is operated, the height B2 of the take-up reel 11 when the setting button 51 (setting operation device) is operated, and the speed B3 of the take-up reel 11 when the setting button 51 (setting operation device) is operated.

[0132] When the setting button 51 (setting operation tool) is operated, the memory unit 70 stores the operating lift height B4 of the reaping unit 3 when the setting button 51 (setting operation tool) is operated. When the setting button 51 (setting operation tool) is operated, the memory unit 70 stores the operating speed position B5 of the continuously variable transmission 45 (travel transmission) when the setting button 51 (setting operation tool) is operated.

[0133] (Operation of the raking reel, reaping unit and continuously variable transmission to adjust to conditions suitable for lodged crops) - 3 As shown in Figures 8 to 11, when the operator presses the setting button 51 to detect and store the front-to-rear position during operation B1, the height during operation B2, the speed during operation B3, the lifting height during operation B4, and the speed position during operation B5, the lowering control unit 73 performs the operation described below (step S4).

[0134] The lowering control section 73 operates the electric cylinder 25 to move the take-in reel 11 to the set front-rear position C1. In this case, the operator can adjust the set front-rear position C1 forward or backward by operating the set front-rear position adjustment dial 79.

[0135] The lowering control section 73 operates the control valve 60, operates the lifting cylinder 26, and moves the take-in reel 11 to the set height C2. The lowering control section 73 operates the electric motor 37, operates the continuously variable transmission 35, and changes the rotation speed of the take-in reel 11 to the set speed C3.

[0136] The lowering control unit 73 changes the set mowing height set by the mowing height setting unit 63 to the set lifting height C4 at the lowest position. The lift control unit 71 operates the control valve 49, operates the lift cylinder 48, and moves the reaping unit 3 to the set lift height C4. The lift control unit 71 is functioning, and the reaping unit 3 is maintained at the set lift height C4 (set reaping height) above the ground.

[0137] The lowering control section 73 operates the speed change cylinder 69, which operates the continuously variable transmission 45, and sets the continuously variable transmission 45 to the set speed position C5. In this case, the operator can adjust the set speed position C5 to a higher or lower position by operating the set speed position adjustment dial 80.

[0138] The take-in reel 11 is moved to the set forward / backward position C1 and the set height C2, the rotation speed of the take-in reel 11 is changed to the set speed C3, the cutting unit 3 is moved to the set lifting height C4, and the continuously variable transmission 45 is operated to the set speed position C5, thereby causing the lowering control unit 73 to terminate operation.

[0139] In this case, when the clutch lever 29 is operated to the threshing position A2 (the reaping unit 3 is stopped and the threshing device 5 is operating) and when the clutch lever 29 is operated to the stop position A3 (both the reaping unit 3 and the threshing device 5 are stopped) (step S1), even if the setting button 51 is pressed, steps S3 and S4 are not performed (corresponding to the control unit being stopped).

[0140] (Operation of the raking reel, reaping unit and continuously variable transmission to adjust to conditions suitable for lodged crops) - 4 With the above configuration, when the setting button 51 (setting operating device) is operated, the electric cylinder 25 (position change actuator) moves the take-in reel 11 to a preset set forward / backward position C1, the lifting cylinder 26 (height change actuator) moves the take-in reel 11 to a preset set height C2, and the electric motor 37 (rotation speed change actuator) changes the rotation speed of the take-in reel 11 to a preset set speed C3, which is provided with a tilting control unit 73 (control unit).

[0141] The machine is provided with a lifting cylinder 48 (lifting actuator) that can raise and lower the reaping unit 3. When a setting button 51 (setting operation tool) is operated, the lowering control unit 73 (control unit) causes the lifting cylinder 48 (lifting actuator) to move the reaping unit 3 to a preset lifting height C4.

[0142] The vehicle is equipped with a continuously variable transmission 45 (traveling transmission) and a speed change cylinder 69 (traveling speed change actuator) that can change the traveling speed by operating the continuously variable transmission 45 (traveling transmission). When a setting button 51 (setting operation tool) is operated, a lowering control unit 73 (control unit) operates the continuously variable transmission 45 (traveling transmission) to a preset set speed position C5 using the speed change cylinder 69 (traveling speed change actuator).

[0143] A reaping / threshing clutch 28 (working clutch) capable of transmitting and disconnecting power is provided to the reaping unit 3. When the reaping / threshing clutch 28 (working clutch) is operated to the threshing position A2 (disconnected state) and the stop position A3 (disconnected state), the operation of the lodging control unit 73 (control unit) stops.

[0144] (Operation of the raking reel, reaping unit and continuously variable transmission to adjust to conditions suitable for lodged crops) - 5 8 to 11, after the operation of the lowering control unit 73 has been completed, when the worker presses the front button 53 (rear button 54) (step S5), the electric cylinder 25 expands and contracts, and the take-up reel 11 is moved forward (rear) from the set forward / rear position C1. When the worker stops pressing the front button 53 (rear button 54), the electric cylinder 25 stops, and the take-up reel 11 stops (step S6).

[0145] After the operation of the lowering control unit 73 is completed, when the worker presses the up button 55 (down button 56) (step S7), the control valve 60 is operated to extend or retract the lifting cylinder 26, and the take-up reel 11 is moved upward (downward) from the set height C2. When the worker stops pressing the up button 55 (down button 56), the lifting cylinder 26 stops, and the take-up reel 11 stops (step S8).

[0146] After the operation of the lowering control unit 73 has been completed, when the worker operates the speed dial 59 (step S9), the electric motor 37 operates the continuously variable transmission 35, and the rotational speed of the take-up reel 11 is changed from the set speed C3 to the higher speed side (lower speed side), and the electric motor 37 operates the continuously variable transmission 35 so that the rotational speed of the take-up reel 11 corresponds to the operating position of the speed dial 59 (step S10).

[0147] After the operation of the lowering control unit 73 is completed, when the operator operates the operation lever 47 forward (rearward) from the neutral position (step S11), the control valve 49 is operated to extend and retract the lifting cylinder 48, and the reaping unit 3 is moved downward (upward) from the set lifting height C4. When the operator returns the operation lever 47 to the neutral position, the lifting cylinder 48 stops, and the reaping unit 3 stops (step S12).

[0148] After the operation of the lowering control unit 73 is completed, when the worker operates the speed change lever 46 (step S13), the speed change cylinder 69 is activated and the continuously variable transmission 45 is operated from the set speed position C5 to the high speed side (low speed side), and the continuously variable transmission 45 is operated to the speed position corresponding to the speed change lever 46 (step S14).

[0149] (Operation of the raking reel, reaping unit and continuously variable transmission to adjust to conditions suitable for lodged crops) - 6 The above configuration provides the front button 53 (position operation device) and the rear button 54 (position operation device) which can be operated manually. When the front button 53 (position operation device) and the rear button 54 (position operation device) are operated, the electric cylinder 25 (position change actuator) operates based on the operation of the front button 53 (position operation device) and the rear button 54 (position operation device), prior to the lowering control unit 73 (control unit).

[0150] The device is provided with an up button 55 (height operation device) and a down button 56 (height operation device) that can be operated manually. When the up button 55 (height operation device) and the down button 56 (height operation device) are operated, the lifting cylinder 26 (height change actuator) operates based on the operation of the up button 55 (height operation device) and the down button 56 (height operation device), prior to the lowering control unit 73 (control unit).

[0151] The machine is provided with a speed dial 59 (rotation speed operating device) that can be operated manually. When the speed dial 59 (rotation speed operating device) is operated, the electric motor 37 (rotation speed changing actuator) operates based on the operation of the speed dial 59 (rotation speed operating device), prior to the tilting control unit 73 (control unit).

[0152] The platform is provided with a manually operable operating lever 47 (lifting / lowering operating device). When the operating lever 47 (lifting / lowering operating device) is operated, the lifting / lowering cylinder 48 (lifting / lowering actuator) operates based on the operation of the operating lever 47 (lifting / lowering operating device), prior to the lowering control unit 73 (control unit).

[0153] The vehicle is provided with a manually operable speed change lever 46 (speed change operating device). When the speed change lever 46 (speed change operating device) is operated, the speed change cylinder 69 (travel speed change actuator) operates based on the operation of the speed change lever 46 (speed change operating device), taking priority over the lowering control unit 73 (control unit).

[0154] (Operation of the raking reel, reaping unit and continuously variable transmission to adjust to conditions suitable for lodged crops) - 7 As shown in Figures 8 to 11, after the operation of the lowering control unit 73 has been completed, when the operator presses the setting button 51 (step S15), or when the operator operates the clutch lever 29 to the threshing position A2 (stop position A3) (step S16), the return control unit 74 performs the operation described below (step S17).

[0155] The return control section 74 operates the electric cylinder 25 to move the take-in reel 11 to the operating front-rear position B1 stored in the storage section 70. The return control section 74 operates the control valve 60, operates the lift cylinder 26, and moves the take-in reel 11 to the operating height B2 stored in the memory section 70. The return control unit 74 operates the electric motor 37, operates the continuously variable transmission 35, and changes the rotation speed of the take-in reel 11 to the operating speed B3 stored in the memory unit 70.

[0156] The return control unit 74 changes the set mowing height (set lifting height C4) set by the mowing height setting unit 63 to the operating lifting height B4 of the mowing unit 3 stored in the memory unit 70. The lift control unit 71 operates the lift cylinder 48, and moves the reaping unit 3 to the operating lift height B4 stored in the memory unit 70. The lift control unit 71 is functioning, and the reaping unit 3 is maintained at the operating lift height B4 (set reaping height) above the ground. The return control unit 74 operates the speed change cylinder 69, operates the continuously variable transmission 45, and operates the continuously variable transmission 45 to the operating speed position B5 stored in the memory unit 70.

[0157] The take-up reel 11 is moved to the operating forward / backward position B1 and the operating height B2, the rotational speed of the take-up reel 11 is moved to the operating speed B3, the cutting unit 3 is moved to the operating lifting height B4, and the continuously variable transmission 45 is moved to the operating speed position B5, thereby causing the return control unit 74 to terminate operation.

[0158] (Operation of the raking reel, the reaping unit and the continuously variable transmission to adjust to conditions suitable for lodged crops) - 8 With the above configuration, when the setting button 51 (setting operating device) is operated after the operation of the lowering control unit 73 (control unit) has finished, the electric cylinder 25 (position change actuator) moves the take-in reel 11 to the operating forward / backward position B1, and the lifting cylinder 26 (height change actuator) moves the take-in reel 11 to the operating height B2, and the electric motor 37 (rotational speed change actuator) changes the rotational speed of the take-in reel 11 to the operating speed B3.

[0159] When the setting button 51 (setting operation tool) is operated after the operation of the lowering control unit 73 (control unit) is finished, the return control unit 74 moves the reaping unit 3 to the operating lift height B4 using the lift cylinder 48 (lift actuator).

[0160] When the setting button 51 (setting operation tool) is operated after the operation of the lowering control unit 73 (control unit) has finished, the return control unit 74 operates the continuously variable transmission 45 (traveling transmission) to the operating speed position B5 using the speed change cylinder 69 (traveling speed change actuator).

[0161] (First Alternative Embodiment of the Invention) 10 and 11, the detection and storage of the operating lift height B4 of the reaping unit 3, the operation of moving the reaping unit 3 to the set lift height C4, and the operation of moving the reaping unit 3 to the operating lift height B4 may be eliminated. In this configuration, steps S11 and S12 may also be eliminated.

[0162] (Second Alternative Embodiment of the Invention) 10 and 11, the detection and storage of the operating speed position B5 of the continuously variable transmission 45, the operation to the set speed position C5, and the operation to the operating speed position B5 may be omitted. In this configuration, steps S13 and S14 may also be omitted.

[0163] (Third Alternative Embodiment of the Invention) 10 and 11, the detection and storage of the operating lift height B4 of the reaping unit 3, the operation of moving it to the set lift height C4, and the operation of moving it to the operating lift height B4 may be eliminated, and the detection and storage of the operating speed position B5 of the continuously variable transmission 45, the operation of moving it to the set speed position C5, and the operation of moving it to the operating speed position B5 may be eliminated. In this configuration, steps S11, S12, S13, and S14 may also be eliminated.

[0164] (Fourth Alternative Embodiment of the Invention) After the operation of the lowering control unit 73 is completed, if the operator operates the operating lever 47 to raise the reaping unit 3 to a position where the ground contact sensor 61 does not contact the ground (steps S11 and S12 in Fig. 11), it may be determined that the machine is turning on a headland or the like, and the process may proceed to step S17 in Fig. 11. In this case, in step S17, the reaping unit 3 is not operated to the operating lift height B4.

[0165] (Fifth Alternative Embodiment of the Invention) Assume that an operator performs one or more of the operations of steps S5 and S6, steps S7 and S8, steps S9 and S10, steps S11 and S12, and steps S13 and S14 shown in Figures 10 and 11.

[0166] In the above-mentioned state, if the operator presses the setting button 51 (step S15) or operates the clutch lever 29 to the threshing position A2 (stop position A3) (step S16), the state of the operations performed by the operator from the operations of steps S5 and S6 to steps S13 and S14 may be left as they are, and operations other than those performed by the operator may be performed to the operating forward / backward position B1 to the operating speed position B5.

[0167] To explain an example of the above-mentioned configuration, suppose that the operator moves the take-in reel 11 from the set front-rear position C1 (steps S5 and S6) and then presses the setting button 51 (step S15).

[0168] When the above-described operation is performed, the take-in reel 11 is left in the position to which it was moved from the set forward / backward position C1. The take-up reel 11 is moved to the operating height B2 stored in the memory unit 70, the rotational speed of the take-up reel 11 is moved to the operating speed B3 stored in the memory unit 70, the cutting unit 3 is moved to the operating lift height B4 stored in the memory unit 70, and the continuously variable transmission 45 is operated to the operating speed position B5 stored in the memory unit 70.

[0169] (Fifth Alternative Embodiment of the Invention) The setting button 51 may be provided on the speed change lever 46 instead of the operation lever 47, or may be provided on an operation panel (not shown) provided on the driver's section 4. The front button 53 and the rear button 54 may be provided on the gearshift lever 46 instead of the operation lever 47, or may be provided on an operation panel (not shown) provided on the driver's section 4. The up button 55 and the down button 56 may be provided on the speed change lever 46 instead of the operation lever 47, or may be provided on an operation panel (not shown) provided on the driver's section 4. [Industrial Applicability]

[0170] The present invention is applicable to a harvester in which a raking reel is provided in a reaping section. [Explanation of symbols]

[0171] 3 Reaping section 11. Scraper reel 25 Electric cylinder (position change actuator) 26 Lifting cylinder (height change actuator) 28 Harvesting and threshing clutch (working clutch) 37 Electric motor (rotation speed change actuator) 45 Continuously variable transmission (travel transmission) 46 Shift lever (shifting device) 47 Operating lever (lifting operation device) 48 Lifting cylinder (lifting actuator) 51 Setting button (setting operation tool) 53 Front button (position control device) 54 Rear button (position control) 55 Up button (height control) 56 Down button (height control) 59 Speed ​​dial (rotation speed control device) 69 Speed ​​change cylinder (travel speed change actuator) 70 Memory section 73 Lodging control unit (control unit) 74 Return control section 79 Setting front / rear position adjustment dial (setting front / rear position adjustment tool) 80 Set speed position adjustment dial (set speed position adjustment tool) B1 Front and back position during operation B2 Operating height B3 Operating speed B4 Lifting height during operation B5 Speed ​​position during operation C1 Setting front and back position C2 Setting height C3 Setting speed C4 Setting lift height C5 Set speed position P2 axis center

Claims

1. a reaping unit that harvests crops in the field and has a raking reel that is driven to rotate around an axis that extends in the left-right direction and raks crops in the field backward; a position change actuator that can change the position of the raking reel back and forth relative to the reaping unit; a height change actuator that can change the height of the raking reel relative to the reaping unit up and down; a rotation speed change actuator capable of changing the rotation speed of the take-up reel; a lifting actuator capable of lifting and lowering the reaping unit; and a setting operation tool that can be manually operated, A harvester equipped with a control unit that, when the setting operating device is operated, moves the raking reel to a preset forward / backward position using the position change actuator, moves the raking reel to a preset height using the height change actuator, changes the rotational speed of the raking reel to a preset speed using the rotational speed change actuator, and moves the cutting unit to a preset lifting height using the lifting actuator.

2. a reaping unit that harvests crops in the field and has a raking reel that is driven to rotate around an axis that extends in the left-right direction and raks crops in the field backward; a position change actuator that can change the position of the raking reel back and forth relative to the reaping unit; a height change actuator that can change the height of the raking reel relative to the reaping unit up and down; a rotation speed change actuator capable of changing the rotation speed of the take-up reel; a travel speed change device; and a travel speed change actuator that operates the travel speed change device to change the travel speed; and a setting operation tool that can be manually operated, A harvester equipped with a control unit that, when the setting operating device is operated, moves the take-up reel to a preset forward / backward position using the position change actuator, moves the take-up reel to a preset height using the height change actuator, changes the rotational speed of the take-up reel to a preset speed using the rotational speed change actuator, and operates the travel speed change device to a preset speed position using the travel speed change actuator.

3. 3. The harvester according to claim 1, further comprising a set front-rear position adjuster that is manually operated to adjust the set front-rear position.

4. A position manipulation tool that can be manipulated manually is provided, The harvester according to claim 1 or 2, wherein when the position manipulation device is manipulated, the position change actuator operates based on the manipulation of the position manipulation device, taking priority over the control unit.

5. A height control device that can be manually operated is provided, The harvester according to claim 1 or 2, wherein when the height operation device is operated, the height change actuator operates based on the operation of the height operation device, taking priority over the control unit.

6. A rotation speed control device that can be operated manually is provided, The harvester according to claim 1 or 2, wherein when the rotation speed operation device is operated, the rotation speed change actuator operates based on the operation of the rotation speed operation device, taking priority over the control unit.

7. A manually operable lifting device is provided, The harvester according to claim 1 , wherein when the lifting operation device is operated, the lifting actuator operates based on the operation of the lifting operation device, taking priority over the control unit.

8. The harvester according to claim 7, wherein the setting operation device is provided on the lifting operation device.

9. 3. The harvester according to claim 2, further comprising a set speed position adjuster that can be manually operated to adjust the set speed position.

10. A manually operable gearshift operating device is provided, The harvester according to claim 2, wherein when the speed change device is operated, the traveling speed change actuator operates based on the operation of the speed change device, taking priority over the control unit.

11. A memory unit is provided which, when the setting operation tool is operated, stores the front-to-rear position of the take-up reel when the setting operation tool is operated, the height of the take-up reel when the setting operation tool is operated, the speed of the take-up reel when the setting operation tool is operated, and the lift height of the reaping unit when the setting operation tool is operated, A harvester as described in claim 1, which is provided with a return control unit that, when the setting operating device is operated after the control unit has finished operating, moves the take-up reel to the operating forward / backward position using the position change actuator, moves the take-up reel to the operating height using the height change actuator, changes the rotational speed of the take-up reel to the operating speed using the rotational speed change actuator, and moves the cutting unit to the operating lift height using the lifting actuator.

12. a storage unit is provided which, when the setting operation tool is operated, stores the longitudinal position of the take-up reel when the setting operation tool is operated, the height of the take-up reel when the setting operation tool is operated, the speed of the take-up reel when the setting operation tool is operated, and the speed position of the traveling transmission when the setting operation tool is operated; A harvester as described in claim 2, which is provided with a return control unit that, when the setting operating device is operated after the operation of the control unit has ended, moves the take-up reel to the operating forward / backward position using the position change actuator, moves the take-up reel to the operating height using the height change actuator, changes the rotational speed of the take-up reel to the operating speed using the rotational speed change actuator, and operates the travel speed change device to the operating speed position using the travel speed change actuator.

13. The reaping unit is provided with a working clutch that can transmit and interrupt power, The harvester according to claim 1 or 2, wherein when the work clutch is operated to a disengaged state, operation of the control unit is stopped.

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