JP2007300894A5 - - Google Patents

Description

Combine

The present invention is related to combine to harvest the planted culms.

The combine increases the ground contact area of the infinite crawlers that make up the crawler, enabling it to run freely even in soft fields such as paddy fields and to perform farming operations such as mowing.
A driver's cab with a combine cockpit is provided with various levers such as a shift lever, a steering lever, and a harvesting lever, and operation switches for various operations. Therefore, it is necessary to arrange the operation switches and various levers so that they can be operated without misoperation. Proposals for improvement for this purpose, or measures for improving the operability of each lever by associating the functions of the various levers, have been proposed. Yes.

Therefore, a device has been devised to improve the operability of these operation means and functionally improve the arrangement structure of the operation switches so that a series of farm work can be performed smoothly (Patent Document 1).
JP 2005-176734 A

  As described above, it is necessary to arrange the operation switches and various levers without misoperation. In particular, the cutting lever for turning on and off the cutting clutch mechanism for operating the cutting device is separated from the cutting clutch mechanism. Therefore, there was room for improvement in the linkage between the harvesting lever and the harvesting clutch mechanism.

  Then, the subject of this invention is providing the cutting clutch mechanism provided with the structure for improving the interlocking | linkage of a cutting lever and a cutting clutch mechanism.

The problems of the present invention are solved by the following means.
That is , a pair of left and right traveling crawlers (3, 3) is provided on the lower side of the vehicle body frame (2), a cutting device (9) is provided on the front end side of the vehicle body frame (2), and above the vehicle body frame (2). , A threshing device (10) for threshing the cereals conveyed from the reaping device (9), and a grain tank (13) for temporarily storing the grains threshed by the threshing device (10), A steering lever (30) is provided in front of the right side of the cab (19) provided with a space for getting on and off the operator, and the left and right traveling crawlers (3, 3) are operated by tilting the steering lever (30) to the left and right. 3) The speed difference is given to the travel direction, and the direction of travel is changed. By operating the steering lever (30) to tilt back and forth, the reaping device (9) is lowered and raised, and the cab (19) On the left side, the left and right traveling crawlers (3, 3) move forward, stop and A main transmission lever (22) that is controlled steplessly, a sub-transmission lever (23) that switches the speed of the left and right traveling crawlers (3, 3) to three stages of low speed, medium speed, and high speed; A reaping lever (47) for operating and stopping 9) and a threshing lever (48) for operating and stopping the threshing device (10) are provided, and the reaping device (9) is operated by operating the reaping lever (47 ). the clutch (C1) reaper turns on and off the communication motion of the engine (21) you drive該刈winding device (9) and is provided, the interlocking mechanism for operating the該刈preparative clutch (C1), cutting lever (47) and said A mechanical interlocking mechanism provided with a link mechanism (60, 62 ) that operates by operating the cutting lever (47), an electric motor (56), and a cutting wire (57) that operates with the electric motor (56). Electrical interlocking machine It is combined, characterized in that constructed from a.

According to the present invention, reaper since a mechanism for Ri OFF ON Ri by a mechanism and electrical interlocking mechanism which Ri Switching Operation input by a mechanical interlocking mechanism of the clutch (C1), reaper reaper clutch (C1) a lever Even when the position of (47) is greatly displaced in the front-rear direction of the machine body , the cutting clutch (C1) can be easily turned on and off.

The motion of the lever (47) cutting, since transmitted intact reaper clutch through a link mechanism (60,6 2) (C1), there is no wasted movement of the clutch (C1) Reaper, reaper clutch (C1) movement of you stable.

  1 is a left side view of the combine of this embodiment, FIG. 2 is a right side view of the combine of FIG. 1, and FIG. 3 is a plan view of the combine of FIG. In the present specification, the left side and the right side refer to directions when the combine is directed in the forward direction.

  As shown in FIG. 1 to FIG. 3, a pair of left and right traveling devices (hereinafter referred to as traveling crawlers) 3 that travel on the soil surface are disposed on the lower side of the body frame 2 of the combine. Engine power is transmitted through the drive wheels 4. On the front end side of the vehicle body 2, a cutting device 9 having a weed ridge 8 is provided. Since the reaping device 9 is supported by the reaping device support frame 7 that moves up and down around the upper fulcrum of the vehicle body 2, a power steering lever (steering lever) on the control seat 20 of the cab 19 can be placed on the combiner. ) 30 is tilted up and down to move up and down together with the reaper support frame 7.

  Above the body frame 2, a threshing device 10 that transports the cereals conveyed from the reaping device 9 to thresh and sort, and a grain tank 13 that temporarily stores the grains threshed and sorted by the threshing device 10 are mounted. An auger 15 comprising a vertical auger 16 and a horizontal auger 17 is connected to the rear part of the Glen tank 13, and the grains in the Glen tank 13 are conveyed by a spiral (not shown) at the lower part of the Glen tank. It is set as the structure discharged | emitted from the grain discharge port 17c of 17 to the exterior of a combine.

  That is, in the combine, the operator operates the HST main transmission lever 22 and the auxiliary transmission lever 23 in the cockpit 20 to transmit the power of the engine 21 (FIG. 4) via the main transmission in the travel transmission case 25 (FIG. 4). And shifts to the left and right traveling crawlers 3 and 3 to travel at an arbitrary speed.

  The right side surface of the cab 19 is provided with a space for getting on and off the operator. A power steering lever (steering lever) 30 is provided in front of the right side of the driver's cab 19. The power steering lever 30 turns the combine to the left and right and tilts back and forth when one lever is tilted to the left and right. If so, the cutting device 9 can be lowered and raised. The combiner can make various turns when the operator tilts the power steering lever 30 left and right in the cockpit 20. That is, the power steering lever 30 is tilted in a direction in which the combine is to be turned, whereby a speed difference is given to the left and right traveling crawlers 3 and 3 to change the traveling direction.

  On the left side of the cab 19, an HST lever (main transmission lever) 22 that can control the traveling crawler 3 forward, stop, and reverse in a stepless manner. A sub-transmission lever 23 that switches between three stages of traveling speed) and high speed (traveling speed), a harvesting lever 47 that operates to stop the threshing device 9 and the threshing device 10, a threshing lever 48, and the like are provided.

FIG. 4 is a power transmission mechanism diagram for transmitting the driving force from the engine 21 from the continuously variable transmission (HST) 28 to the reaping device 9.
The operation of the reaping device 9 is performed as follows. First, the engine 21 is started, and a harvesting clutch C1 comprising a tension clutch and a threshing clutch (not shown) are operated by operating the harvesting lever 47 and the threshing lever 48 to transmit the rotating parts of the fuselage. The traveling frame 2 is moved forward by operating to move forward. Next, the steering lever 30 is tilted forward to lower the reaping device 9, and reaping and threshing operations are started.

  The grain culm planted in the field is subjected to a weeding action by the weeding tool 8 at the lower front end of the reaping device 9, and then the grain culling is raised and if it is in the lying state by the raising action of the device 11, it is caused to stand upright. The cereal stock reaches the cutting blade (not shown) and is cut, and is fed into the front transport device (not shown) and transported backward, to the supply transport device comprising the tip transport lug and the stock transport chain It is inherited and is conveyed to the rear upper part sequentially in a continuous state.

  The cereal is inherited by the start end of the feed chain 14, threshed inside the threshing device 10, and then conveyed to the Glen tank 13. The grain stored in the grain tank 13 is conveyed to the outside of the combine via the augers 16 and 17.

The remaining threshing culms that have reached the end of the threshing device 10 are cut and released to the field.
Further, the transmission mechanism of the transmission 24 shown in FIG. 4 includes a steering transmission section 24a, an intermediate transmission section 24b, an auxiliary transmission section 24c, a counter section 24d (input / output section 26) from the lower side of the transmission path in the traveling transmission case 25. And the input / output unit 26, and the rotational power is transmitted from the input / output unit 26 to the steering transmission unit 24a via the counter unit 24d, the auxiliary transmission unit 24c, and the intermediate transmission unit 24b. In this configuration, the direction of travel of the airframe can be turned to the right or left by switching the steering transmission portion 24a.

  The hydraulic continuously variable transmission (HST) 28 has an input pulley 35 for driving force from the engine 21 detachably attached to a shaft end portion of a hydraulic input shaft 33 protruding to the side of the case 32. A hydraulic pump 28a, a hydraulic motor 28b having a rotatable output shaft, and the like are provided therein, and a space formed between the upper surface of the right side portion and the right side surface of the left side portion of the traveling transmission case 25. It attaches to the right side surface of the left side part of the transmission case 25 so as to be detachable. The input pulley 35 is detachably provided on the traveling frame 2 below the cockpit 20 and is configured to automatically control the fuel supply amount and output a preset rotational speed even when the load fluctuates. A belt 40 is wound between a pulley 35 and a pulley 38 provided on an engine output shaft 37 attached to an output side end of the engine 21. The rotational power output from the hydraulic continuously variable transmission (HST) 28 is transmitted to the input / output unit 26 of the transmission 24.

  The output of the input / output unit 26 of the transmission 24 drives the one-way clutch 132 via the counter shaft 125, and power is transmitted from the clutch 132 to the cutting input pulley 42 of the cutting input shaft 41 via the belt 46. The The cutting input shaft 41 is provided so as to project to the side of the rotating body 43 of the cutting device 9, and a cutting input pulley 42 is detachably attached to the cutting input shaft 41.

There is provided a tension type cutting clutch C1 that tensions or releases the belt 46 by the operation of the cutting lever 47 to turn on and off the transmission of the rotational power.
In addition, as shown in FIG. 4, the threshing input pulley 96 in the input part of the threshing apparatus 10 is carried out by the transmission mechanism containing the belt 141 and the tension clutch C2 which are shown with a dotted line from the output pulley 95 provided in the engine output shaft 37. It rotates and each drive member of the threshing apparatus 10 (the rocking | swiveling axis | shaft 136 of the rocking shelf 51, the red pepper shaft 137, etc.) is driven. At this time, the threshing clutch C <b> 2 is configured to operate the tension pulley 128 provided on the belt 141 by the operation of the threshing lever 48 to turn on and off the transmission of the rotational power of the threshing device 10.

  A gear box 135 for driving the feed chain 14 is arranged in front of the threshing device 10, and a power transmission system (one-way clutch 132) from the hydraulic continuously variable transmission (HST) 28 via the drive shaft 134 and the threshing device 10 It is assumed that the power transmission system (pulley 96, tang shaft 137, etc.) has two input configurations. Further, the tension pulley 139 can be operated via the wire cable 85 by the manual clutch lever 161 arranged outside the machine body, and the feed chain 14 can be driven via the belt 138.

  In this way, the belt transmission system (belt 138 and belt 142) is arranged on both sides of the drive shaft 134 with the gear box 135 interposed therebetween, so that the belt can be replaced independently, and in particular, the power transmission of the threshing device 10 outside the fuselage. The system belt 138 and the belt 142 can be replaced independently, and maintenance is facilitated.

  The feed chain 14 can be driven from both the drive shaft 134 and the red shaft 137, but a one-way clutch 132 is provided to prevent the two systems of power from being mechanically locked, and the higher speed is transmitted to the feed chain 14. To do.

Further, a motor 56 is provided that starts operation when the reaping device 9 is raised by a predetermined amount, and the driving of the reaping device 9 and the feed chain 14 is stopped by the ascent of the reaping device 9.
In this embodiment, the drive system of the reaping device 9 and the drive system of the feed chain 14 are taken out from the left side surface of the traveling transmission case 25, and both the reaping device 9 and the feed chain 14 are rotated in synchronization with the vehicle speed by the same output shaft (counter shaft 125). A configuration is provided in which a single one-way clutch 132 is provided.

  The mowing device 9 and the feed chain 14 need to be turned off when the hydraulic continuously variable transmission (HST) 28 moves the airframe backward, but the feed chain is used as a one-way clutch for driving the mowing device 9 and driving the feed chain 14. A single one-wake clutch 132 that spans both the 14-drive pulley 126 and the pulley 129 for driving the cutting device 9 is used.

  The combine generally has a mechanism for turning on and off the cutting clutch C1 by a mechanical interlocking mechanism, but when the positions of the cutting clutch C1 and the cutting lever 47 are largely shifted in the front-rear direction of the aircraft, In the conventional mechanical interlocking mechanism, a wire may be used to transmit the movement of the cutting lever 47 to the cutting clutch C1. When a wire is used for the mechanical interlocking mechanism, the wire may be pulled, but there is a drawback that the wire cannot be pushed. Further, if the wire itself is extended, there is a drawback that the movement of the cutting lever 47 is not completely transmitted to the cutting clutch C1.

  On the other hand, in this embodiment, since a mechanism for engaging / disengaging the harvesting clutch C1 by a link mechanism using a mechanical interlocking mechanism is provided, the positions of the harvesting clutch C1 and the harvesting lever 47 are greatly shifted in the front-rear direction of the airframe. Even when it is arranged, the cutting clutch C1 can be easily and reliably turned on and off.

  FIG. 5 shows a mechanical interlocking mechanism including an electrical interlocking mechanism including an electric motor 56 for operating the harvesting clutch C1 of the present embodiment by a harvesting wire 57 and a link mechanism provided between the harvesting clutch C1 and the harvesting lever 47. The block diagram of is shown.

First, the electrical interlocking mechanism will be described.
Both ends of the support shaft 52 are fixed to a clutch frame 53 having a U-shaped cross section, and one end of a case 55 having a rotating shaft in parallel with the support shaft 52 is fixed to one side surface thereof. Is attached with an outer receiver of a cutting wire 57 that pushes and pulls the tension pulley 59 of the cutting clutch C1 through a spring 58 by an electric motor 56. Therefore, when the electric motor 56 pushes and pulls the inner cable of the cutting wire 57, the tension pulley 59 of the cutting clutch C1 adjusts the tension of the clutch belt 46 and acts on the cutting clutch C1.

Moreover, the mechanical interlocking mechanism by the link mechanism of the cutting clutch C1 and the cutting lever 47 has the following configuration.
The other end of the case 55 having a rotating shaft that is supported by the clutch frame 53 at one end is assembled in a parallelogram shape, and is integrated with one plate 60 of a link mechanism in which the plates are connected to each other so as to be rotatable. Connected.

  Further, there is an arm rotation shaft case 61 in which a rotation shaft for an arm is installed at a position parallel to the rotation shaft case 55, and one end of the arm rotation shaft case 61 is located at a position parallel to the plate 60. And are connected integrally. The other end of the arm rotation shaft case 61 is integrally connected to a single plate 64 in a parallel position facing the plate 62. The plate 64 is integrally connected to the cutting lever 47 through the two plates 65 and 66 sequentially. Therefore, when the cutting lever 47 is operated in the direction of arrow A, the plate 65 rotates in the direction of arrow B, the plate 62 rotates in the direction of arrow C, the clutch frame 53 rotates in the direction of arrow D, and the spring 58. The tension pulley 59 of the reaping clutch C1 rotates in the direction of the arrow F in the direction of increasing the tension of the clutch belt via the movement in the direction of the arrow E, and acts in the direction in which the reaping clutch C1 is engaged.

  A simple structure of the mechanical interlocking mechanism including the electrical interlocking mechanism including the electric motor 56 that operates the harvesting clutch C1 illustrated in FIG. 5 by the harvesting wire 57 and the link mechanism provided between the harvesting clutch C1 and the harvesting lever 47 is illustrated. A figure is shown to Fig.7 (a) and the relationship of arrangement | positioning of the cutting lever 47 and the threshing lever 48 is shown to FIG.7 (b).

  By operating the cutting lever 47, the spring 58 locked to the locking portion 59a of the cutting clutch tension pulley 59 operates for a length S1 as shown in FIG. In the electric motor 56, the spring 58 is operated for a length S2. The movement of the spring 58 by the length S1 or the length S2 cannot move the cutting clutch tension pulley 59 to “turn on” the cutting clutch C1, and the cutting lever 47 and the electric motor 56 operate together. For the first time, the spring 58 can move for a length S (= S1 + S2) sufficient to turn the cutting clutch C1 “ON”, and the cutting clutch tension pulley 59 moves to the “ON” position shown in FIG. The clutch C1 is “ON”.

  When both the cutting lever 47 and the electric motor 56 are operated to set the cutting clutch C1 to “ON”, the electric motor 56 is moved up by a predetermined amount due to the rearward movement of the power steering lever 30. And the cutting clutch tension pulley 59 is returned by the length S2 of the cutting wire 57. At this time, the cutting lever 47 is operating for the length S1, but the cutting clutch C1 cannot be operated. Therefore, when the reaping device 9 is raised by a predetermined amount, the reaping device 9 is deactivated. Further, since the feed chain 14 can be activated and deactivated when the electric motor 56 is turned on and off, the feed chain 14 can be maintained in an activated state when the cutting device 9 is raised by a predetermined amount.

  Further, as shown in FIG. 7 (b), the operation of the harvesting lever 47 and the threshing lever 48 is configured to be able to move to the front of the drawing, and the threshing lever 48 can be operated independently, but the harvesting lever 47 Whenever is operated, the threshing lever 48 is also operated.

When performing threshing in a state where the combine is stopped (when handling), the threshing apparatus 10 can be operated by operating the manual clutch lever 161 and operating the threshing lever 48 alone.
Further, when the threshing lever 48 is operated, a detection switch (not shown) for detecting the threshing lever detects this, and the electric motor 56 is operated. Therefore, only the length S2 of the cutting wire 57 is set. The reaping clutch tension pulley 59 is actuated and the reaping clutch C1 is in the “on” state, so that the reaper can be harvested and the harvested cereal can be threshed.

  A rotary shaft is housed in a frame 67 bent in an L-shape, in which the link mechanism of the cutting clutch portion including the cutting clutch C1 and the clutch frame 53 and the cutting lever 47 shown in FIG. The rotation shaft case 55 and the arm rotation shaft case 61 are connected by welding. Even if the clutch portion and the cutting lever 47 are largely displaced in the front-rear direction by the L-shaped frame 67, it is possible to directly transmit the on / off of the cutting lever 47 to the cutting clutch C1.

  As shown in FIG. 5, the drive wheel 4 of the travel crawler 3 is provided on a drive shaft 50 that protrudes left and right from the travel transmission case 25. Further, power is transmitted from the drive system in the traveling transmission case 25 to the cutting input pulley 42 of the cutting input shaft 41 of the cutting clutch C1. The cutting input shaft 41 is provided so as to project to the side of the rotating body 43 of the cutting device 9, and a cutting input pulley 42 is detachably attached to the cutting input shaft 41.

  Further, the cutting clutch portion including the cutting clutch C1 and the clutch frame 53, the L-shaped frame 67 and the link mechanism thereon are removed, and only the cutting lever 47 and the plate 66 are attached to the airframe as shown in FIG. If the pin 66a and the cutting tension pulley 59 are connected by a cable 69, the motor 56 is not used. In this case, since the motor 56 is not provided, there is no function for stopping the operation of the cutting device 9 and the feed chain when the cutting device 9 is raised by a predetermined amount.

  Furthermore, the magnitude of the displacement of the cutting clutch part and the cutting lever 47 before and after the machine body can be dealt with by changing the length of the connecting rod 70 of the link mechanism. By changing the length of the connecting rod 70, it is possible to cope with the displacement in the front-rear direction of the cutting clutch portion and the cutting lever 47. Therefore, even if the distance between the clutch portion and the cutting lever 47 in the front-rear direction is different depending on the model.

In a model in which the positions of the clutch portion and the cutting lever 47 are greatly deviated in the left-right direction of the machine body, it can be easily adjusted by changing the length of the arm rotation shaft case 61.
6 shows a configuration in which an arm rotation shaft case 61 that is longer than that in FIG. 5 is provided. In this case, even when the harvesting lever 47 and the clutch portion are largely displaced in the left-right direction, it is possible to directly transmit the on / off of the harvesting lever 47 to the harvesting clutch C1.

  Further, as shown in FIG. 6, the frame 67 ′ supporting the clutch portion, the link mechanism, and the arm rotation shaft case 61 has a bent shape that is L-shaped when viewed from the side of the body and is L-shaped when viewed from the top of the body. The configuration. Since all the members such as the clutch part and the link mechanism are arranged on the bent frame 67 ', the unit can be attached to and removed from the traveling transmission case 25 as an integrated unit, and maintenance is easy. Can be done. Further, since the frame 67 'is composed of one frame, the cost is reduced.

  Also in this case, the distance between the clutch part and the cutting lever 47 is changed by changing the length of the arm rotation shaft case 61 so that the distance between the clutch part and the cutting lever 47 varies in the left-right direction. Can also respond.

  Further, in the link mechanism of this embodiment, as shown in FIG. 6, the ratio (L1 / L2) of the length L1 of the plate 60 on the side surface of the clutch frame 53 and the length L2 of the plate 62 can be freely changed. can do. Since the plate length ratio (L1 / L2) can be freely changed, when the clutch frame 53, the link mechanism, and the bent frame 67 'are mounted as a single unit on a combiner of various models, a cutting lever Even if the stroke of 47 varies, it is possible to cope with all models by changing the plate length ratio (L1 / L2).

  As shown in the perspective view of FIG. 9 (a), the wire receivers 73 and 75 of the clutch portion in the configuration shown in each of the above embodiments can be attached to either type of wire having different diameters in one groove. And a substantially V-shaped groove.

For example, the wire receivers 73 and 75 are locked to both ends of a support member 74 for a lever guide of a cockpit for locking the cable 69 of FIG.
In the conventional wire receivers 73 and 75, wire receivers having two or more types of groove widths were prepared in order to attach wires having different diameters. However, the configuration shown in FIG. .

  Further, the wire receivers 73 and 75 shown in FIG. 9 are characterized in that both types of wires having different diameters can be attached in one groove, and the inner line shift with respect to the adjuster is minimized. In the case of a conventional wire receiver, in order to attach a wire having a different diameter, a wire receiver provided with two separate grooves is generally provided so that a wire having a different diameter can be attached. However, in this method, the inner line shifts with respect to the attached adjuster increases, and there is a problem in durability such as wear of the inner wire.

  However, in this embodiment, as shown in the front view of FIG. 9 (b), the outer receivers of the wire receivers 73 and 75 have the grooves formed in a tapered shape so that wires having different diameters can be attached with one groove. In addition, the length L of the inner line of the wire relative to the adjuster could be minimized.

It is a left view of the combine of one Example of this invention. It is a right view of the combine of FIG. It is a top view of the combine of FIG. It is a block diagram of the power transmission part of the combine of FIG. It is a figure which shows the interlocking mechanism of the harvesting clutch part, harvesting lever, and electric motor of one Example of the combine of FIG. It is a figure which shows the interlocking mechanism of the harvesting clutch part, harvesting lever, and electric motor of one Example of the combine of FIG. 1 is a simple configuration diagram (FIG. 7A) of a mechanical interlocking mechanism and an electrical interlocking mechanism provided with a link mechanism provided between the harvesting clutch and the harvesting lever of the combine of FIG. 1, and the arrangement of the harvesting lever and the threshing lever. FIG. 7 is a relationship diagram (FIG. 7B). It is a figure which shows the connection mechanism only of the harvesting clutch part and harvesting lever of the combine of FIG. FIG. 9 is a perspective view (FIG. 9A) and a front view (FIG. 9B) of the wire receiver of the combine of FIG.

2 body frame 3 traveling crawler 9 reaping device 10 threshing device 13 grain tank 19 cab 21 engine 22 main transmission lever 23 auxiliary transmission lever 30 steering lever 47 reaping lever 48 threshing lever 56 electric motor 57 reaping wire 60 plate (link mechanism)
62 Plate (link mechanism)
C1 mowing clutch

Claims (1)

A pair of left and right traveling crawlers (3, 3) is provided on the lower side of the vehicle body frame (2), a cutting device (9) is provided on the front end side of the vehicle body frame (2), and a cutting machine is disposed above the vehicle body frame (2). A threshing device (10) for threshing cereals conveyed from the device (9) and a Glen tank (13) for temporarily storing grains threshed by the threshing device (10) are placed on the right side. A steering lever (30) is provided in front of the right side of the cab (19) provided with a space for getting on and off, and the left and right traveling crawlers (3, 3) are operated by tilting the steering lever (30) left and right. The traveling direction is changed by giving a speed difference, and the reaping device (9) is lowered and raised by tilting the steering lever (30) back and forth, and the left side of the cab (19) The left and right traveling crawlers (3, 3) are moved forward, stopped and retracted. A main transmission lever (22) that controls in stages, an auxiliary transmission lever (23) that switches the speed of the left and right traveling crawlers (3, 3) to three stages of low speed, medium speed, and high speed, and a reaping device (9) A mowing lever (47) for operating and stopping and a threshing lever (48) for operating and stopping the threshing device (10) are provided. By operating the mowing lever (47), the mowing device (9) and the mowing lever reaper turns on and off the communication motion between you drive the device (9) engine (21) clutch (C1) is provided, the interlocking mechanism for operating the該刈preparative clutch (C1), cutting lever (47) and該刈preparative lever ( mechanical interlocking mechanism having a link mechanism (60,6 2) that operates by the operation of 47), an electrical interlock with cutting wires (57) that operates by an electric motor (56) and the electric motor (56) or a mechanism Combine, characterized in that the configuration was.