WO2014077134A1

WO2014077134A1 - Combine harvester

Info

Publication number: WO2014077134A1
Application number: PCT/JP2013/079565
Authority: WO
Inventors: 宮本　彰
Original assignee: ヤンマー株式会社
Priority date: 2012-11-14
Filing date: 2013-10-31
Publication date: 2014-05-22
Also published as: CN104684379A; CN104684379B; JP2014097016A; KR102064029B1; KR20150083989A

Abstract

The combine harvester is equipped with: a clutch mechanism (73) capable of transmitting or intercepting motive power from an engine (71) to a feed chain (31); a control device (C) capable of determining the drive state of traveling devices (12, 12) and of modifying the operation state of the clutch mechanism (73); and a grain culm guide (9A (9B)) capable of pressing grain culm and guiding same to the feed chain (31). The grain culm guide (9A (9B)) is configured to be capable of moving between a first state (S1) near the feed chain (31) and a second state (S2) separated from the feed chain (31). The control device (C) is configured to control the clutch mechanism (73) and transmit motive power from the engine (71) to the feed chain (31) only when the traveling devices (12, 12) are stopped and the grain culm guide (9A (9B)) is in the first state (S1).

Description

Combine

The present invention relates to a combine technology.

Conventionally, there is known a combine that harvests cereal while running and threshs the harvested culm (see, for example, Patent Document 1). Such a combiner is capable of threshing cereals that are manually cut by an operator (see, for example, Patent Document 2). Such work is referred to as “handling work”.

By the way, in the handling operation, the feed chain or the like is driven in a state where the combine is stopped, and the cereal is manually supplied to the feed chain. Therefore, a technique for driving the feed chain according to the operator's intention has been demanded. In other words, there has been a demand for a technique in which the feed chain is not driven against the operator's intention.

JP 2012-143193 A JP 2010-273591 A

The object of the present invention is to provide a combine in which the feed chain is not driven against the operator's intention.

The combine according to the first aspect of the present invention is:
Engine,
A traveling device driven by the power of the engine;
In a combine comprising a feed chain driven by the power of the engine,
A clutch mechanism capable of transmitting or interrupting the power of the engine to the feed chain;
A control device capable of grasping a driving state of the traveling device and changing an operating state of the clutch mechanism;
A culm guide capable of pushing the culm and guiding it to the feed chain,
The cereal guide is configured to be movable between a first state close to the feed chain and a second state spaced from the feed chain,
The control device controls the clutch mechanism to transmit the power of the engine to the feed chain only when the grain guide is in the first state while the traveling device is stopped.

The combine according to the second aspect of the present invention is the combine according to the first aspect,
Comprising a first switch capable of instructing the operating state of the clutch mechanism to the control device;
The first switch is configured to be in an “on” state when the culm guide is in a first state, and to be in a “off” state when the culm guide is in a second state;
The control device controls the clutch mechanism to transmit the power of the engine to the feed chain only when the first switch is in the “ON” state when the traveling unit is stopped. It is.

The combine according to the third aspect of the present invention is the combine according to the second aspect,
A second switch capable of instructing the operating state of the clutch mechanism to the control device;
The control device controls the clutch mechanism only when the first switch and the second switch are in the “on” state with the traveling unit being stopped, and supplies the engine power to the feed chain. It is something to be transmitted to.

The combine according to the fourth aspect of the present invention is the combine according to the third aspect,
The second switch is always in the “OFF” state and is in the “ON” state only while the operator is operating.

The combine according to the fifth aspect of the present invention is the combine according to any one of the first to fourth aspects,
The cereal guide prevents the cereal from being placed in a predetermined location when the cereal guide is in the first state, and the cereal guide is placed in a predetermined location when the cereal guide is in the second state. It is something that can be put in.

As the effects of the present invention, the following effects are obtained.

In the combine according to the first to fifth aspects of the present invention, the feed chain does not drive against the operator's intention. Therefore, it is possible to improve the safety of the combine.

The figure which shows the left side surface of a combine. The figure which shows the upper surface of a combine. The figure which shows the structure of the power transmission mechanism of a combine. The figure which shows the structure of the control system of a combine. The figure which shows the operation | movement aspect of the culm guide which concerns on one Embodiment. The figure which shows the procedure of handling work. The figure which shows the procedure of handling work. The figure which shows the procedure of handling work. The figure which shows the procedure of handling work. The figure which shows the operation | movement aspect of the culm guide which concerns on other embodiment. The figure which shows the procedure of handling work. The figure which shows the procedure of handling work. The figure which shows the procedure of handling work. The figure which shows the procedure of handling work.

Next, an embodiment of the invention will be described.

First, the combine 100 according to an embodiment of the present invention will be briefly described.

FIG. 1 is a view showing the left side surface of the combine 100. FIG. 2 is a view showing the upper surface of the combine 100. In addition, the arrow X shown in a figure represents the front-back direction of the combine 100. FIG. Here, the forward direction of the combine 100 is defined as the front side, and the reverse direction of the combine 100 is defined as the rear side. Moreover, the arrow Y shown in the drawing represents the left-right direction of the combine 100. Here, the left side with respect to the forward direction of the combine 100 is defined as the left side, and the right side with respect to the forward direction of the combine 100 is defined as the right side.

The combine 100 is mainly composed of a traveling unit 1, a mowing unit 2, a threshing unit 3, a sorting unit 4, a storage unit 5, a waste disposal unit 6, a power unit 7, and a control unit 8. Has been.

The traveling unit 1 is provided below the fuselage frame 10. The traveling unit 1 mainly includes a transmission 11 (see FIG. 3) and a pair of left and right traveling devices (hereinafter referred to as “crawler type traveling devices”) 12 and 12. The transmission 11 transmits the power of the engine 71 (hereinafter referred to as “rotational power”) to the crawler

type traveling devices

12 and 12. The crawler

type traveling devices

12 and 12 cause the combine 100 to travel in the front-rear direction. The crawler

type traveling devices

12 and 12 turn the combine 100 in the left-right direction.

The cutting unit 2 is provided in front of the traveling unit 1. The cutting unit 2 mainly includes a divider 21, a pulling device 22, a cutting device 23, and a conveying device 24. The divider 21 guides the grain culm to the pulling device 22. The pulling device 22 causes the cereals guided by the divider 21. The cutting device 23 cuts the culm caused by the pulling device 22. The transport device 24 transports the cereals cut by the cutting device 23 to the threshing unit 3.

The threshing unit 3 is provided behind the cutting unit 2. The threshing unit 3 mainly includes a feed chain 31 and a handling cylinder 32. The feed chain 31 inherits the grain candy from the conveying device 24 and conveys it to the waste disposal processing unit 6. The handling cylinder 32 threshs the cereal straw conveyed by the feed chain 31.

The sorting unit 4 is provided below the threshing unit 3. The sorting unit 4 mainly includes a swing sorting device 41, a wind sorting device 42, a grain transport device 43 (see FIG. 3), and a sawdust discharging device 44 (see FIG. 3). The swing sorting device 41 sorts the threshing that has fallen from the threshing unit 3 into grains and swarf. The wind sorting device 42 further sorts the cereals sorted by the swing sorting device 41 into grains and swarf. The grain transport device 43 transports the grain selected by the swing sorting device 41 and the wind sorting device 42 to the storage unit 5. The swarf discharging device 44 discharges the swarf and the like sorted by the swing sorting device 41 and the wind sorting device 42.

The storage unit 5 is provided on the right side of the threshing unit 3. The storage unit 5 mainly includes a Glen tank 51 and a discharge device 52. The Glen tank 51 stores the grains that have been conveyed from the sorting unit 4. The discharging device 52 can discharge the grain stored in the Glen tank 51 to an arbitrary place.

The waste disposal unit 6 is provided behind the threshing unit 3. The waste disposal unit 6 mainly includes a waste transport device 61 (see FIG. 3) and a waste cutting device 62 (see FIG. 3). The waste transporting device 61 inherits the rice cake from the feed chain 31 and transports it to the waste cutting device 62. The waste cutting device 62 cuts and discharges the cereals conveyed by the waste conveying device 61.

The power unit 7 is provided on the right side of the sorting unit 4. The power unit 7 mainly includes an engine 71 and a counter case 72 (see FIG. 3). The engine 71 generates rotational power. The counter case 72 transmits the rotational power of the engine 71 to the cutting unit 2, the threshing unit 3, and the sorting unit 4.

The control unit 8 is provided above the power unit 7. The control unit 8 mainly includes a driver seat 81 and a plurality of operation tools 82. The driver's seat 81 is a seat on which an operator sits. The operation tool 82 operates the combine 100 according to the operation of the operator.

With this configuration, the operator can steer the combine 100 while sitting in the driver's seat 81. The combine 100 can select the grains from the harvested cereal and store them in the storage unit 5. In addition, the combine 100 is provided with the cereal guide 9A (9B) on the left side. The culm guide 9 A (9 B) is for guiding the culm to the feed chain 31. The detailed structure will be described later.

Next, the power transmission mechanism of the combine 100 will be described.

FIG. 3 is a diagram showing the configuration of the power transmission mechanism of the combine 100. As shown in FIG. In the following, only the main part of the power transmission mechanism and the part relating to the present invention are described, and the other parts are omitted. In the following description, when the rotational power of the engine 71 input to the counter case 72 via the continuously variable transmission 111 is designated, the rotational power of the continuously variable transmission 111 is assumed.

The power transmission mechanism of the combine 100 is mainly composed of a transmission 11, a counter case 72, a rotating shaft and a belt that transmit the rotational power of the engine 71 to other parts.

As described above, the transmission 11 transmits the rotational power of the engine 71 to the crawler

type traveling devices

12 and 12. The rotational power of the engine 71 is input to the transmission 11 via the belt b1. The transmission 11 includes a hydraulic-mechanical continuously variable transmission (HMT) 111 as a transmission. The continuously variable transmission 111 converts the rotational power of the engine 71 into hydraulic pressure, and then converts it into rotational power again to drive the crawler

type traveling devices

12 and 12. With such a configuration, the transmission 11 can change the driving state of the crawler

type traveling devices

12 and 12 and can cause the combine 100 to travel in an arbitrary direction.

The counter case 72 transmits the rotational power of the engine 71 to the cutting unit 2, the threshing unit 3, and the sorting unit 4. The rotational power of the engine 71 is input to the counter case 72 via the belts b2 and b3. Further, the rotational power of the continuously variable transmission 111 is input to the counter case 72 via the belts b4 and b5. The counter case 72 combines the rotational power of the engine 71 and the continuously variable transmission 111 by using a planetary gear mechanism, and drives the feed chain 31. Further, the counter case 72 transmits the rotational power of the continuously variable transmission 111 to the cutting unit 2. Thereby, the counter case 72 can synchronize the conveyance speed by the feed chain 31 and the cutting speed by the cutting unit 2 with the traveling speed of the combine 100.

In this combine 100, a clutch mechanism 73 capable of transmitting or interrupting the rotational power of the engine 71 to the feed chain 31 is provided. More specifically, a clutch mechanism 73 is provided that can transmit or block power obtained by combining rotational power of the engine 71 and the continuously variable transmission 111 to the feed chain 31. As shown in FIG. 4, the clutch mechanism 73 is connected to a control device C that can transmit a control signal to the clutch mechanism 73. The control device C is connected to a first switch Sw1 and a second switch Sw2 that can transmit an input signal to the control device C. The first switch Sw 1 and the second switch Sw 2 can instruct the operation state of the clutch mechanism 73 to the control device C. The control device C can change the operating state of the clutch mechanism 73. In addition, the control apparatus C can also grasp the drive state of the crawler

type traveling apparatuses

12 and 12. The control device C validates the operation of the first switch Sw1 and the second switch Sw2 only when the crawler

type traveling devices

12 and 12 are stopped.

Next, the cereal guide 9A according to one embodiment will be described in detail.

FIG. 5 is a diagram showing an operation mode of the cereal guide 9A. In addition, the arrow R in a figure has shown the rotation direction of 9 A of grain guides. Moreover, arrow S in a figure has shown the expansion-contraction direction of the support part 94 which comprises the grain candy guide 9A.

As described above, the culm guide 9A is a guide that pushes the culm and guides it to the feed chain 31. The cereal husk guide 9 A mainly includes a main body portion 91 and a guide portion 92. Moreover, the culm guide 9 A includes members such as an operation lever 93, a support part 94, and a spring 95.

The main body 91 is formed by bending a plate material. The main body 91 is attached to the frame via a rotation shaft 91s. For this reason, the main body 91 is rotatable about the rotation shaft 91s (see arrow R). An operation lever 93 is attached to the main body 91. Therefore, the operator can easily rotate the main body 91 by grasping the operation lever 93.

The guide portion 92 is formed by bending a bar. The guide portion 92 is attached to the main body portion 91 by two support portions 94. Since the support part 94 is provided with the spring 95, it urges | biases the guide part 92 below (refer arrow S). For this reason, the guide part 92 can apply an optimal load to the culm and press the culm against the feed chain 31. In addition, since the guide part 92 is attached to the main body part 91, it rotates integrally with the main body part 91.

With such a configuration, the culm guide 9A is configured to be close to or away from the feed chain 31. In other words, the culm guide 9A is configured to be movable between a state close to the feed chain 31 and a state separated from the feed chain 31. Here, a state in which the culm guide 9A is close to the feed chain 31 is defined as a first state S1, and a state in which the culm guide 9A is separated from the feed chain 31 is defined as a second state S2.

The first switch Sw1 is disposed behind the cereal guide 9A. Further, since the rotation plate 91p is formed in the main body 91, the first switch Sw1 is switched to the “ON” state or the “OFF” state by the rotation plate 91p. More specifically, the first switch Sw1 is in the “ON” state when the culm guide 9A is in the first state S1, and is in the “OFF” state when the culm guide 9A is in the second state S2. It is.

The second switch Sw2 is arranged in front of the cereal guide 9A. The second switch Sw2 is switched to the “ON” state or the “OFF” state by the operator's operation. More specifically, the second switch Sw2 is in the “ON” state only while the operator is pressing it, and is in the “OFF” state when the operator stops pressing. That is, the second switch Sw2 is always in the “OFF” state, and is in the “ON” state only while the operator W is operating.

Next, the handling operation in the combine 100 provided with the cereal guide 9A will be described.

6 to 9 are diagrams showing the procedure of the handling operation. An arrow R in the figure indicates the direction of rotation of the culm guide 9A. Moreover, the arrow C in the figure indicates the driving direction of the feed chain 31, that is, the conveying direction of the cereal straw (hereinafter referred to as “cereal candy G”). The handling operation described below is performed in a state where the crawler

type traveling devices

12 and 12 are stopped.

<Procedure 1>
As shown in FIG. 6, the worker (hereinafter referred to as “worker W”) rotates the culm guide 9A upward to move the culm guide 9A from the first state S1 to the second state S2. Let As a result, the first switch Sw1 is switched from the “ON” state to the “OFF” state. At this time, the control device C transmits a control signal to the clutch mechanism 73 so that the rotational power of the engine 71 is not transmitted to the feed chain 31 in response to the first switch Sw1 being in the “off” state. That is, the control device C blocks the rotational power of the engine 71 by controlling the clutch mechanism 73. At the stage of procedure 1, since the feed chain 31 has not been driven from the beginning, the feed chain 31 continues to be stopped.

<Procedure 2>
As shown in FIG. 7, the worker W puts the cereal husk G, which has been cut manually, in a predetermined place. Here, the “predetermined place” refers to a space in which the culm G can be pressed against the feed chain 31 by the guide portion 92 when the culm guide 9A is rotated downward. The reason why the culm guide 9A is pivotable in the vertical direction is that the culm G cannot be placed in a predetermined place when the culm guide 9A is in the first state S1. This is because the culm G can be placed in a predetermined place when 9A is in the second state S2.

<Procedure 3>
As shown in FIG. 8, the worker W rotates the culm guide 9A downward to move the culm guide 9A from the second state S2 to the first state S1. As a result, the first switch Sw1 is switched from the “OFF” state to the “ON” state. However, the control device C maintains the operating state of the clutch mechanism 73 so that the rotational power of the engine 71 is not transmitted to the feed chain 31 in response to the second switch Sw2 remaining in the “off” state. That is, the control device C blocks the rotational power of the engine 71 by maintaining the operating state of the clutch mechanism 73.

<Procedure 4>
As shown in FIG. 9, the worker W presses the second switch Sw 2 to switch the second switch Sw 2 from the “OFF” state to the “ON” state. At this time, the control device C transmits a control signal to the clutch mechanism 73 so that the rotational power of the engine 71 is transmitted to the feed chain 31 in response to the second switch Sw2 being in the “ON” state. That is, the control device C transmits the rotational power of the engine 71 by controlling the clutch mechanism 73. As described above, the second switch Sw2 is always in the “OFF” state, and is in the “ON” state only while the operator W is operating.

With such a configuration, the operator W grips the operation lever 93 with one hand and operates the second switch Sw2 with the other hand. If demonstrating it concretely, the operator W will grasp the operation lever 93 with a right hand and will operate the 2nd switch Sw2 with a left hand from arrangement | positioning of the grain candy guide 9A and 2nd switch Sw2.

Thus, in the combine 100 according to the present embodiment, the feed chain 31 is not driven against the intention of the worker W. Therefore, the safety of the combine 100 can be improved.

Next, the culm guide 9B according to another embodiment will be described in detail.

FIG. 10 is a diagram showing an operation mode of the culm guide 9B. In addition, the arrow R in a figure has shown the rotation direction of the grain straw guide 9B. Moreover, arrow S in a figure has shown the expansion-contraction direction of the arm part 193 which comprises the grain straw guide 9B.

As described above, the culm guide 9B pushes the culm and guides it to the feed chain 31. The grain straw guide 9 B mainly includes a guide part 191 and a restriction part 192. Further, the culm guide 9B includes members such as an arm portion 193, a spring 194, and an operation lever 195.

The guide portion 191 is formed by bending a bar. The guide part 191 is attached to the frame via a rotation shaft 191s. For this reason, the guide portion 191 is rotatable about the rotation shaft 191s (see arrow R). In addition, the arm part 193 is attached to the guide part 191 via the rotating shaft 193s. Since the arm portion 193 includes a spring 194, the arm portion 193 biases the guide portion 191 downward (see arrow S). For this reason, the guide part 191 can apply an optimal load to the cereal and press the cereal against the feed chain 31.

The limiting portion 192 is formed by bending a bar. The limiting portion 192 is attached to the frame via a rotation shaft 192s. For this reason, the restricting portion 192 is rotatable about the rotation shaft 192s (see arrow R). In addition, the front-end | tip part of the restriction | limiting part 192 is attached to the operation lever 195 via the rotating shaft 192t. The operation lever 195 is attached to the guide portion 191 via a rotation shaft 195s. For this reason, the operation lever 195 can switch the limiting portion 192 to be rotatable or non-rotatable according to the direction of rotation. The limiting portion 192 is attached to the operation lever 195, and since the operation lever 195 is attached to the guide portion 191, it rotates together with the guide portion 191.

稈 With such a configuration, the culm guide 9B is configured to be able to approach or separate from the feed chain 31. That is to say, the cereal guide 9B is configured to be movable between a state adjacent to the feed chain 31 and a state separated from the feed chain 31. Here, a state in which the culm guide 9B is close to the feed chain 31 is defined as a first state S1, and a state in which the culm guide 9B is separated from the feed chain 31 is defined as a second state S2.

The first switch Sw1 is arranged behind the cereal guide 9B. Further, since the rotation plate 192p that is interlocked with the rotation of the limiting portion 192 is provided, the first switch Sw1 is switched to the “ON” state or the “OFF” state by the rotation plate 192p. More specifically, the first switch Sw1 is in an “ON” state when the culm guide 9B is in the first state S1, and is in a “OFF” state when the culm guide 9B is in the second state S2. It is.

The second switch Sw2 is arranged in front of the cereal husk guide 9B. The second switch Sw2 is switched to the “ON” state or the “OFF” state by the operator's operation. More specifically, the second switch Sw2 is in the “ON” state only while the operator is pressing it, and is in the “OFF” state when the operator stops pressing. That is, the second switch Sw2 is always in the “OFF” state, and is in the “ON” state only while the operator W is operating.

Next, the handling operation in the combine 100 provided with the cereal guide 9B will be described.

FIG. 11 to FIG. 14 are diagrams showing the procedure of the handling operation. The arrow R in the figure indicates the direction of rotation of the culm guide 9B. Moreover, the arrow C in the figure indicates the driving direction of the feed chain 31, that is, the conveying direction of the cereal straw (hereinafter referred to as “cereal candy G”). The handling operation described below is performed in a state where the crawler

type traveling devices

12 and 12 are stopped.

<Procedure 1>
As shown in FIG. 11, the worker (hereinafter referred to as “worker W”) rotates the operation lever 195 upward to turn the restricting portion 192, that is, turns the grain guide 9B. It will be in a movable state. Then, the operator W rotates the culm guide 9B upward to move the culm guide 9B from the first state S1 to the second state S2. As a result, the first switch Sw1 is switched from the “ON” state to the “OFF” state. At this time, the control device C transmits a control signal to the clutch mechanism 73 so that the rotational power of the engine 71 is not transmitted to the feed chain 31 in response to the first switch Sw1 being in the “off” state. That is, the control device C blocks the rotational power of the engine 71 by controlling the clutch mechanism 73. At the stage of procedure 1, since the feed chain 31 has not been driven from the beginning, the feed chain 31 continues to be stopped.

<Procedure 2>
As shown in FIG. 12, the worker W places the culm G that has been harvested manually in a predetermined place. Here, the “predetermined place” refers to a space in which the culm G can be pressed against the feed chain 31 by the guide portion 191 when the culm guide 9B is rotated downward. The reason why the culm guide 9B is rotatable in the vertical direction is that the culm G cannot be placed in a predetermined place when the culm guide 9B is in the first state S1, This is for allowing the culm G to be placed in a predetermined place when 9B is in the second state S2.

<Procedure 3>
As shown in FIG. 13, the worker W rotates the culm guide 9B downward to move the culm guide 9B from the second state S2 to the first state S1. As a result, the first switch Sw1 is switched from the “OFF” state to the “ON” state. However, the control device C maintains the operating state of the clutch mechanism 73 so that the rotational power of the engine 71 is not transmitted to the feed chain 31 in response to the second switch Sw2 remaining in the “off” state. That is, the control device C blocks the rotational power of the engine 71 by maintaining the operating state of the clutch mechanism 73.

<Procedure 4>
As shown in FIG. 14, the worker W presses the second switch Sw 2 to switch the second switch Sw 2 from the “OFF” state to the “ON” state. At this time, the control device C transmits a control signal to the clutch mechanism 73 so that the rotational power of the engine 71 is transmitted to the feed chain 31 in response to the second switch Sw2 being in the “ON” state. That is, the control device C transmits the rotational power of the engine 71 by controlling the clutch mechanism 73. As described above, the second switch Sw2 is always in the “OFF” state, and is in the “ON” state only while the operator W is operating.

With this configuration, the operator W grasps the operation lever 195 with one hand and operates the second switch Sw2 with the other hand. If demonstrating it concretely, the operator W will operate the operation switch 195 with the right hand, and will operate the 2nd switch Sw2 with a left hand from the structure of the grain guide 9B, and arrangement | positioning of the 2nd switch Sw2.

Thus, in the combine 100 according to the present embodiment, the feed chain 31 is not driven against the intention of the worker W. Therefore, the safety of the combine 100 can be improved. Note that the operator W rotates the operation lever 195 downward after completing the handling operation, and sets the restricting portion 192 in a non-rotatable state, that is, in a state where the cereal guide 9B is rotatable. Should be noted.

本 The combine 100 is configured as described above to improve safety. However, in order to simplify the structure, the second switch Sw2 may be omitted. In this case, the control device C controls the clutch mechanism 73 to transmit the rotational power of the engine 71 to the feed chain 31 when the first switch Sw1 is in the “ON” state. Even with such a configuration, it is possible to ensure a certain level of safety.

The present invention can be used for combine technology.

DESCRIPTION OF SYMBOLS 100 Combine 1 Traveling part 2 Cutting part 3 Threshing part 4 Sorting part 5 Storage part 6 Exclusion processing part 7 Power part 8 Control part 10 Airframe frame 31 Feed chain 71 Engine 73 Clutch mechanism 9A Grain guide 91 Main part 92 Guide part 93 Operating lever 94 Supporting part 95 Spring 9B Grain guide 191 Guide part 192 Restriction part 193 Arm part 194 Spring C Control device G Grain S1 First state S2 Second state Sw1 First switch Sw2 Second switch W Worker

Claims

Engine,
A traveling device driven by the power of the engine;
In a combine comprising a feed chain driven by the power of the engine,
A clutch mechanism capable of transmitting or interrupting the power of the engine to the feed chain;
A control device capable of grasping a driving state of the traveling device and changing an operating state of the clutch mechanism;
A culm guide capable of pushing the culm and guiding it to the feed chain,
The cereal guide is configured to be movable between a first state close to the feed chain and a second state spaced from the feed chain,
The control device controls the clutch mechanism to transmit the power of the engine to the feed chain only when the grain guide is in the first state while the traveling device is stopped. Combine to do.
Comprising a first switch capable of instructing the operating state of the clutch mechanism to the control device;
The first switch is configured to be in an “on” state when the culm guide is in a first state, and to be in a “off” state when the culm guide is in a second state;
The control device controls the clutch mechanism to transmit the power of the engine to the feed chain only when the first switch is in the “ON” state while the traveling unit is stopped. The combine according to claim 1.
A second switch capable of instructing the operating state of the clutch mechanism to the control device;
The control device controls the clutch mechanism only when the first switch and the second switch are in the “on” state with the traveling unit being stopped, and supplies the engine power to the feed chain. The combine according to claim 2, wherein the combine is transmitted.
The combine according to claim 3, wherein the second switch is always in the "OFF" state and is in the "ON" state only while the operator is operating.
The cereal guide prevents the cereal from being placed in a predetermined location when the cereal guide is in the first state, and the cereal guide is placed in a predetermined location when the cereal guide is in the second state. The combine according to any one of claims 1 to 4, wherein the combine can be placed on