JP6711440B2 - combine - Google Patents

Description

TECHNICAL FIELD The present invention relates to a combine equipped with a feed chain for supplying a grain rod cut by a harvesting device to a threshing device.

For harvesting of combine harvesters, while the combine is running, the mowing device equipped in the front part is used to mow the napped culms in the field, and the harvested mowing rod is fed to the threshing device by the feeding device. Normal mowing and threshing work, in which threshing is carried over to the chain and the auxiliary picking rod, and an auxiliary worker mows upright culms on the edge of the ridge and puts the mowed harvested rod on the feed chain for threshing. There is manual handling work.

Conventionally, in order to efficiently perform manual handling work by an auxiliary worker, a manual handling plate extending above the feed chain during the manual handling work is vertically swung to the rear end of the frame of the mowing device. It is provided so that it can extend vertically above the feed chain during normal mowing and threshing work, and at the time of manual handling work, an auxiliary clamping rod that opens above the feed chain is provided at the front end of the threshing device so that it can swing vertically A configuration (Patent Document 1) has been proposed.

In order to simplify the combine transmission mechanism and facilitate assembly, a transmission mechanism that branches into a transmission path that transmits the rotation of the engine to the traveling device and a transmission path that transmits to the harvesting device and the threshing device (Patent Document 2) proposes a transmission mechanism (Patent Document 3) that is branched into a transmission path that transmits the rotation of the engine to the traveling device and the cutting device and a transmission path that transmits to the threshing device.

JP 2001-258372 A JP-A-5-199812 JP-A-11-253039

However, in the configuration of Patent Document 1, when the normal mowing threshing work is changed to the manual handling work, the work of moving the auxiliary clamping rod upward to open the upper side of the feed chain and the downward movement of the manual handling plate. It is necessary to perform a complicated work of moving to the upper part and extending it to the upper side of the feed chain, which causes a problem that the work load of the auxiliary worker increases. In addition, since the auxiliary pinching rod is located above the front part of the feed chain, a large working space cannot be secured above the feed chain, and the manual work of the auxiliary worker is restricted. There is a problem that work cannot be performed efficiently.

Further, in the transmission mechanism of Patent Document 2, since the rotation transmitted to the feed chain that supplies the rods to the harvesting device and the threshing device is output from the common hydraulic continuously variable transmission, the drive speed of the feed chain is increased. Cannot be independently set with respect to the drive speed of the mowing device, and there is a problem that the supply speed of the grain culms to the threshing device cannot be optimized. In addition, since the output shaft of the gear box that accelerates and decelerates the rotation of the hydraulic continuously variable transmission and transmits it to the feed chain is projected toward the inside of the machine, parts of the transmission mechanism from the gear box to the feed chain There was a problem that the number of points was large and it was not possible to save the installation space.

Further, the transmission mechanism of Patent Document 3 has a problem that the transmission efficiency of the feed chain is low because the feed chain is transmitted from the sorting unit of the threshing device via the continuously variable transmission.

Therefore, a main object of the present invention is to solve such a problem and to enhance the safety of the manual work of the auxiliary worker.

MEANS TO SOLVE THE PROBLEM This invention which solved the said subject is as follows.

The invention according to claim 1 is a threshing device (3) arranged behind the mowing device (4), and a handling opening (1) formed on one side of the handling chamber (50) of the threshing device (3). 26B) is provided with a feed chain (12B), and a sandwiching rod (12A) arranged so as to be opposed to the upper side of the feed chain (12B), the harvesting device (4) And a vertically movable hand-operated restricting member (40) extending rearward from the transport terminal end side of the transport device, and transporting from the transport device (34) on the reaping device (4) side to the feed chain (12B). A rear auxiliary clamping rod (43) for clamping the culm to be fed between the feed chain (12B) and the feed chain (12B) is provided, and the hand-handling restriction member (40) is rotated downward during normal reaping and threshing work. It is moved to reduce the distance between the rear portion of the hand-holding control member (40) and the front portion of the holding rod (12A), and the hand-handling control member (40) is used to provide the rear auxiliary holding rod in a side view of the machine body. A regulation state in which the placement of the hand-operated grain culm on the front part of the feed chain (12B) is regulated located above the rod (43), and the hand-operated regulation member (40) during the hand-operated work. Is rotated upward to increase the distance between the rear portion of the hand-holding control member (40) and the front portion of the holding rod (12A) and open the upper side of the rear auxiliary holding rod (43). Then, the combine is characterized in that the feed chain (12B) can be switched to a non-regulated state in which the placement of the hand-operated grain culm on the front part thereof is permitted.

The invention according to claim 2 is the combine according to claim 1, wherein the hand-handling restriction member (40) is provided with a plate portion (42) in the vertical direction.

The invention according to claim 3 is provided with a switch (46) that is pressed during a manual handling operation, and is configured to switch to a manual handling mode when the switch (46) is pressed. Is a combine harvester.

According to the invention as set forth in claim 1, during normal mowing and threshing work, the hand control member 40 is rotated downward so that the distance between the rear part of the hand control member 40 and the front part of the clamping rod 12A is increased. A restricted state in which the hand control member 40 is contracted and is positioned above the rear auxiliary clamping rod 43 in a side view of the machine body to restrict the placement of the hand culm on the front part of the feed chain 12B. During the manual handling work, the manual handling regulating member 40 is rotated upward to increase the distance between the rear portion of the manual handling regulating member 40 and the front portion of the clamping rod 12A, and at the same time, the rear auxiliary clamping rod is provided. Since the upper part of 43 is opened and it can be switched to the non-regulated state in which the placement of the hand-operated grain culm in the front part of the feed chain 12B is permitted, the state where the harvesting is performed while running It is possible to increase the safety of auxiliary workers in the field. Also, a large space for manual handling work can be secured above the feed chain 12B, and the efficiency of manual handling work can be improved.
According to the invention as set forth in claim 2, in addition to the effect of the invention as set forth in claim 1, the hand-handling regulating member 40 having the plate portion 42 in the vertical direction is rotated downward during the normal reaping and threshing work. In addition to reducing the distance between the rear portion of the handholding restraint member 40 and the front portion of the holding rod 12A, the plate portion 42 provided on the handhold restraint member 40 has an upper side of the rear auxiliary holding rod 43 in a side view of the machine body. It is possible to switch to a restricted state in which the placement of the hand-operated culm on the front part of the feed chain 12B is restricted at the position.
According to the invention as set forth in claim 3, in addition to the effect of the invention as set forth in claim 2, a switch 46 is provided which is pressed during manual handling work, and the manual handling mode is set by pressing the switch 46. It can be switched.

It is a left side view of a combine. It is a top view of a combine. It is a principal part left side view of a threshing apparatus. It is a principal part sectional drawing of a threshing apparatus. It is a principal part front view of a combine. It is a principal part front view of a combine. It is an explanatory view of installation of a hydraulic type continuously variable transmission for a feed chain. (A) of a hydraulic type continuously variable transmission for a feed chain is an enlarged sectional view, (b) is an enlarged side view. It is a principal part transmission mechanism figure of a combine. It is a connection diagram of a control device. It is explanatory drawing of the 1st drive method of a feed chain. It is explanatory drawing of the 2nd drive method of a feed chain. It is explanatory drawing of the 1st stop method of a feed chain. It is explanatory drawing of the 2nd stop method of a feed chain. It is a principal part left side view of a conveyance apparatus. It is a principal part top view of a conveyance apparatus. It is a left side view of a manual handling lever at the time of normal mowing threshing work. FIG. 9 is a left side view of the manual handling lever during manual handling work. FIG. 7 is a plan view of a handle lever. It is explanatory drawing of attachment of another hydraulic type continuously variable transmission for feed chains. FIG. 9 is a left side view of a main part in which another manual handling lever has been rotated during a normal reaping and threshing work to a manual handling work. It is a top view of another hand-operated lever. It is another hand-operated lever assembly perspective view.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In order to facilitate understanding, the front side is viewed from the front of the operator, the rear side is behind, the right hand side is the right side, and the left hand side is the left side. The configuration is not limited.

As shown in FIGS. 1 and 2, the combine is provided with a traveling device 2 composed of a pair of left and right crawlers for traveling on a soil surface below the machine body frame 1, and on the upper left side of the machine body frame 1 for threshing/sorting. A threshing device 3 for performing the above is provided, and in front of the threshing device 3, a mowing device 4 for harvesting grain rods in the field is provided. Grains that have been threshed and selected by the threshing device 3 are stored in the Glen tank 5 provided on the right side of the threshing device 3, and the stored grains are discharged to the outside by the discharge cylinder 7. Further, on the upper right side of the machine body frame 1, a pilot seat 6 on which a pilot rides is provided, and below the pilot seat 6, an engine room 8 in which an engine 62 is mounted is provided.

<Mowing device>
The reaping device 4 is formed by a post-crop frame 28, a reaper transmission case 29 laterally provided at the tip of the post-crop frame 28 in the left-right direction, and a connecting frame 29A vertically erected from the reaper transmission case 29. It is attached to the mowing frame 30, which is the main frame. The base portion of the post-crop frame 28 is attached to the right side of a horizontal transmission cylinder 36 that is rotatably supported on the upper portions of a pair of left and right suspension bases 35, 35 provided upright on the machine body frame 1. ..

The reaping device 4 is provided with a weeding rod 31 for weeding planted culms, which is provided in the lower part on the front side, a pulling device 32 provided behind the weeding rods 31 for causing a fallen planted culm, and a pulling device. A cutting blade device 33 provided at the lower rear part of 32 for cutting the root of the planted culm, and a raising device 32 and a cut culm provided behind the cutting blade device 33 are provided on one side of the threshing device 3. And a transport device 34 for transporting the threshing part transport device 12 provided. The transport device 34 is composed of a stock-source transport device 34A that transports the plant side of the cut grain culm and a tip transport device 34B that transports the tip side, and from this transport device 34 to the threshing part transport device 12. In order to prevent the falling of the grain rod when taking over, a support body 37 is provided on the right side of the front end portion of the threshing portion transport device 12 from the rear end portion of the transport device 34 to the front end portion of the handling chamber 50. Has been.

At the rear end of the frame 4A of the reaping device 4, as shown in FIG. 15, a bracket 38C for mounting a front auxiliary clamping rod and a bracket 38D for mounting a grain rod sensor 34C for detecting the amount of deformation of the front auxiliary clamping rod. Is provided. The front end of the frame 4A is attached to a connecting frame 29A that is erected on the left side of the mowing transmission case 29 of the mowing frame 30, and is inclined rearwardly upward from the front to the rear, and the rear end is a feed chain. It faces the upper front of 12B.

The front side auxiliary pinching rod is configured to have an upper side auxiliary pinching rod and a lower side auxiliary pinching rod made of a spring plate or the like. A front end portion of the upper auxiliary clamping rod is attached to a bracket 38C attached to a terminal end portion of the frame 4A by a fastening member such as a bolt, and a rear end portion thereof extends to a start end portion of the feed chain 12B. .. The front end portion of the lower auxiliary clamping rod is attached to the bracket 38C attached to the end portion of the frame 4A from the lower side by a fastening member such as a bolt so as to cover the upper auxiliary clamping rod from the lower side. The portion extends to the front side of the holding rod 12C.

The width of the upper auxiliary clamping rod and the lower auxiliary clamping rod in the left-right direction is narrower than the width of the feed chain 12B in the left-right direction, and the lower auxiliary clamping rod is the feed chain 12B. It is mounted between the left and right outer plates.

The grain rod sensor 34C is attached to a bracket 38D attached to the end of the frame 4A by a fastening member such as a bolt. In addition, as for the grain rod sensor 34C, as shown in FIG. 15, it is preferable to arrange two grain rod sensors 34C and 34C in parallel in the front-back direction at the bracket 38D.

The grain rod sensor 34C arranged on the front side detects whether or not there is a grain rod that is transferred from the transport device 34 to the feed chain 12B. That is, when there is a grain rod that is transferred from the transport device 34 to the feed chain 12B, the rear end of the upper auxiliary clamping rod moves upward, and the rear end of the upper auxiliary clamping rod is arranged on the front side. The pressed grain rod sensor 34C is pressed. On the other hand, when there is no grain rod, the rear end of the upper auxiliary pinching rod maintains the state of being extended to the starting end of the feed chain 12B.

The grain rod sensor 34C arranged on the rear side detects clogging of the grain rod that is transferred from the transport device 34 to the feed chain 12B. That is, when the grain rod that is transferred from the transport device 34 to the feed chain 12B is jammed in the front side of the feed chain 12B, the rear end portion of the lower auxiliary clamping rod moves upward and the lower auxiliary clamping rod moves. The middle part of the rod presses the grain rod sensor 34C arranged on the rear side. On the other hand, when there is no clogging of the grain rod, the rear end portion of the lower auxiliary clamping rod is maintained on the upper side of the feed chain 12B. In particular, it is preferable to switch the transport speed of the feed chain 12B according to the output value of the grain rod sensor 34C arranged on the rear side.

(First regulation means)
At the end of the frame 4A, as shown in FIGS. 15 and 16, a rear auxiliary clamping rod 43 for clamping the grain rod conveyed from the conveying device 34 to the feed chain 12B with the feed chain 12B, and a handling cylinder to be described later. A first switch provided with a hand-handling regulating member 40 for operating a mode switch (“switch” in the claims) 46 for switching between the normal mowing threshing work and the hand-handling work in place of the mode switch 6B arranged on the cover 50D. 1 restriction means 100 is provided.

The front end portion of the rear side auxiliary clamping rod 43 made of a spring plate or the like is attached to a shaft 44A extending in the left-right direction and attached to a bracket ("support portion" in claims) 44 attached to the end of the frame 4A. It is rotatably supported, and the rear end portion extends rearward along the lower side of the pinching rod 12C and extends rearward of the front end of the pinning rod 12C. The width of the rear auxiliary clamping rod 43 in the left-right direction is narrower than the width of the feed chain 12B in the left-right direction, and the rear auxiliary clamping rod 43 is formed on the left and right outer plates of the feed chain 12B. Listed in between. Further, the shaft 44A is arranged parallel to the drive shaft 68D that drives the feed chain 12B and the support shaft of the tension wheel 17B.

The rear auxiliary clamping rod 43 secures a wide maintenance/inspection work space after the handle barrel cover 50D is opened and the clamping rod 12C is moved upward during maintenance/inspection work of the feed chain 12B and the like. Therefore, the shaft can be rotated counterclockwise about the shaft 44A in the left side view of the machine body.

The hand-handling restricting member 40 includes a front plate 41 made of a channel material having a substantially U-shaped cross section, and a front end portion attached to a rear end portion of the front plate 41 and a shaft 41B extending in the left-right direction. Is rotatably supported, and has a rear plate (a "plate portion" in the claims) 42 having a substantially I-shaped cross section.

The front end portion of the front plate 41 is rotatably supported by a shaft 44A that supports the front end portion of the rear auxiliary clamping rod 43, and on the outer surface of the left side plate of the front end portion, the front side of the shaft 44A of the bracket 44 is below the front side. A substantially semi-circular arc-shaped actuating portion 41A for pressing the mode switch 46 attached to is mounted. Further, between the both side plates at the rear end of the front plate 41, a shaft 41B extending in the left-right direction is mounted to rotatably support the front end of the rear plate 42. In this embodiment, the front plate 41 and the rear auxiliary clamping rod 43 are supported by the same shaft 44A, but they may be supported by different shafts.

As shown in FIGS. 17 to 19, the actuating portion 41A is formed in a semi-circular shape toward the front side (a circular arc shape from the 6 o'clock position to the 12 o'clock position in the state shown in FIG. 17). The center of the axis is located in a position deviated from the axis of the shaft 44A (in the state shown in FIG. 17, the position is deviated to the upper front side with respect to the shaft 44A). As shown in FIG. 17, the operating portion 41A prevents the lower side portion of the operating portion 41A and the terminal portion 46A of the mode switch 46 from contacting each other when the hand-handling regulating member 40 is in the regulated state. In a case where the lower portion of the actuating portion 41A and the terminal portion 46A of the mode switch 46 are arranged with a constant gap, and the hand-handling regulating member 40 is positioned in the non-regulating state as shown in FIG. Is arranged so that the upper portion of the operating portion 41A and the terminal portion 46A of the mode switch 46 contact each other, and the upper portion of the operating portion 41A presses the terminal portion 46A of the mode switch 46.

Further, as the hand-handling restricting member 40 rotates in the counterclockwise direction, the gap between the upper portion of the operating portion 41A and the terminal portion 46A of the mode switch 46 becomes narrower, and the upper portion of the operating portion 41A becomes the upper portion of the mode switch 46. The terminal portion 46A is pressed more strongly.

The shape of the actuating portion 41A is not limited to the above shape, and is formed in a 1/4 circular arc shape (a circular arc shape from 9 o'clock to 12 o'clock) toward the front side, and the center of the 1/4 circular arc shape is formed. A shape that is biased to the front side of the axis of the shaft 44A, has a 1/4 circular arc shape (a circular arc shape from 9 o'clock to 12 o'clock) toward the front side, and is formed in a straight line portion that is slanted backward from the lower end of the circular arc. It is also possible to have a shape in which the center of the four arcs is biased to the front side of the axis of the shaft 44A.

As a result, when the front plate 41 is rotated counterclockwise around the shaft 44A in the left side view of the machine to switch from the normal reaping and threshing work to the manual handling work, the traveling device 2 is driven. Even when the vibration or the like is propagated to the front plate 41, the terminal portion 46A of the mode switch 46 and the operating portion 41A of the front plate 41 are rotated as the front plate 41 is rotated counterclockwise about the shaft 44A. Thus, the interval can be narrowed, and the terminal portion 46A of the mode switch 46 can be reliably pressed to maintain the ON state.

On the other hand, when the front plate 41 is rotated clockwise about the shaft 44A in the left side view of the machine to switch from the manual handling work to the normal reaping and threshing work, the detection state of the mode switch 46 is changed. The ON state can be gradually changed to the OFF state.

When the normal cutting and threshing work is switched to the manual handling work, the operator is warned by a monitor or the like arranged in front of the cockpit 6 in order to maintain the safety of the auxiliary operator. ..

As the mode switch 46, it is also possible to use a detection sensor that detects the switching from the normal reaping and threshing work to the manual handling work mode or the like by the contact between the terminal portion 46A of the mode switch 46 and the operating portion 41A of the front side plate 41. it can. However, in order to prevent the detection state (ON/OFF state) from becoming unstable due to vibration generated by traveling of the traveling device 2, when the terminal portion 46A of the mode switch 46 is displaced by a certain amount or more, It is preferable to use a displacement sensor and a pressure-sensitive sensor that detect the switching from the normal mowing threshing work to the manual handling work mode or the like when the pressing force is applied.

When a displacement sensor is used as the mode switch 46, it is possible to output an output value corresponding to the displacement amount of the terminal portion 46A displaced by being pressed by the operating portion 41A.

As described above, when the displacement sensor is used as the mode switch 46, the mode switch 46 corresponding to the rotational position of the front plate 41 for switching the normal mowing and threshing work to the control device 85 in advance. Of the terminal part 46A of the mode switch 46 (threshold value A) corresponding to the rotation position of the front plate 41 for switching from the manual handling work to the normal cutting and threshing work (threshold value A) By setting B), even when the vibration or the like due to the traveling of the traveling device 2 is significantly changed due to the soil surface, it is possible to easily change the work switching by changing the threshold values A and B, and to stabilize the operation. The work can be switched.

A front end portion of the rear plate 42 is rotatably supported by a shaft 41B attached to a rear end portion of the front plate 41, and a front portion 42A inserted inside the front plate 41 has a cross section of substantially I. The rear side portion 42</b>B, which is formed in the shape of the letter “A” and extends rearward from the rear end of the front plate 41, is also formed in the shape of the letter “I” in cross section.

During normal mowing and threshing work, the hand-handling restricting member 40 is rotated clockwise about the shaft 44A and is formed between the rear end of the frame 4A and the front end of the gripping rod 12A. In the restricted state of covering the space above the rod 43, during the manual handling work, the manual handling restricting member 40 is rotated counterclockwise about the shaft 44A to be clamped with the rear end of the frame 4A. The space above the rear side auxiliary clamping rod 43 formed between the front ends of the rods 12C is opened to a non-regulated state.

That is, the hand-handling restricting member 40 rotates downward, and the distance between the rear part of the hand-handling restricting member 40 and the front part of the gripping rod 12A is reduced, so that the hand-handled grain culm to the feed chain 12B is reduced. And the hand-handling restricting member 40 pivots upward, and the distance between the rear part of the hand-manipulating restricting member 40 and the front part of the holding rod 12A is expanded, and the feed chain 12B. It is configured to switch to a non-regulated state in which the supply of hand-handled culm to the plant is permitted.

In the restricted state, the front plate 41 extends rearward from the shaft 44A to cover the starting end portion of the feed chain 12B, and the rear plate 42 extends rearward from the front plate 41 in a plan view. It is provided to reach the rear of the front end of the pinching rod 12C and is arranged on the left side of the feed chain 12B. Further, in a side view, the front plate 41 is arranged so as to be gently inclined rearward and upward from the shaft 44A, and the rear plate 42 is arranged so as to be gently inclined rearward and upward from the front plate 41. And reaches the rear of the front end of the pinching rod 12C.

The front plate 41 maintains the regulated posture by the lower stopper 41C provided in the middle portion thereof contacting the upper edge of the support member 43A provided at the base of the rear auxiliary clamping rod 43, The side plate 42 maintains the regulated posture by bringing the front end portion of the rear plate 42 into contact with the rear portion of the front plate 41. In addition, in order to enhance the safety of the auxiliary worker, it is preferable that the front end portion of the front side plate 41 is disposed in front of the front end portion of the feed chain 12B, and the upper side of the transport device 34 that prevents scattering of dust and the like. It is preferable to dispose it on the rear side of the rear end of the front dust-proof cover 49A disposed on the.

Further, in order to prevent overhanging from the machine body, it is preferable to arrange the right side surface of the front plate 41 inside the left side surface of the rear dustproof cover 49B arranged above the transport device 34. As shown in FIG. 17, since the rear plate 42 is rotatable around the shaft 41B at the rear end of the front plate 41, the rear plate 42 does not need to be removed, and the handle plate 40 cannot be removed. Can be rotated in the vertical direction.

In the non-restricted state, the front plate 41 is extended from the shaft 44A toward the front so as to be inclined forward and upward, and the rear plate 42 is substantially horizontal from the shaft 41B of the front plate 41 toward the front in a side view. Has been extended to. The front plate 41 maintains an unregulated posture by abutting an upper surface of the front plate 41 with an upper stopper 44C provided upright on the bracket 44, and the rear plate 42 has a rear portion 42B of the rear plate 42. By contacting the upper surface of the with the rear portion of the front plate 41, the posture in the non-regulated state is maintained. In order to prevent fluctuations in the regulated state and the non-regulated state of the front plate 41 due to the propagation of vibrations and the like, and to facilitate the rotation of the front plate 41, the rear portion of the transport device 34 and the left surface of the front plate 41 are separated. It is preferable that the front plate 41 is biased in the regulated state and the non-regulated state by connecting the shaft 44A with a biasing means such as a spring-like spring.

(Second regulation means)
Next, the second restricting means 110 will be described. The same members as those of the first restricting means 100 are designated by the same reference numerals, and duplicate description will be omitted.

As shown in FIGS. 21 to 23, at the terminal end of the frame 4A, a rear auxiliary pinching rod 143 for pinching the grain rod conveyed from the conveying device 34 to the feed chain 12B with the feed chain 12B, and a handling body cover 50D. The second restricting means 110 is provided with a hand-handling restricting member 140 that operates the mode switch 146 that switches between the normal mowing threshing work and the hand-handling work in place of the mode switch 6B arranged at.

A first bracket 144 is attached to the end of the frame 4A. A switch support portion 144A to which the mode switch 146 is attached is formed on a lower side portion of the first bracket 144, and a rear auxiliary clamping rod 143 and a handholding restriction member 140 are provided on an upper side portion of the first bracket 144. A rotation support portion 144B that pivotally supports a shaft 147 that extends in the left-right direction and that rotatably supports the mode switch 146 and the outside on the left side that is the uncut side of the first bracket 144. And a biasing means support portion 144C for mounting the front portion of the biasing means 152 such as a spring in the form of a spring that suppresses fluctuations in the regulated state or the non-regulated state of the hand restraint member 140 due to vibrations generated during traveling. Has been formed. In order to easily perform maintenance/inspection work such as replacement of the rear side auxiliary clamping rod 143 and the mode switch 146, the first bracket 144 includes the weld nut 4C of the plate 4B fixed to the tip of the frame 4A. It is detachably attached with a bolt 4D.

The rear auxiliary clamping rod 143 made of a spring plate or the like is rotatably attached to the shaft 147 supported by the rotation support portion 144B of the first bracket 144 via the second bracket 145.

The second bracket 145 is formed by including a bottom plate 145A and side plates 145B, 145B extending upward on both left and right sides of the bottom plate 145A. Two weld bolts 145C arranged in parallel in the front-rear direction are fixed to the center of the bottom plate 145A in the left-right direction. Further, in order to fit the rotation support portion 144B of the first bracket 144 between the side plates 145B, 145B, the lateral distance between the side plates 145B, 145B is the width of the rotation support portion 144B of the first bracket 144 in the left-right direction. A circular arc-shaped opening 145D is formed in the front part of the side plates 145B, 145B, and the shaft 147 is inserted therethrough, and the upper ends of the side plates 145B, 145B are formed rearward and downward. In the restricted state, the upper ends of the left and right side plates 145B, 145B contact the inner surface of the upper plate 148A of the third bracket 148.

At the center of the front part of the rear auxiliary clamping rod 143 in the left-right direction, two openings 143A arranged in parallel in the front-rear direction are opened. In order to easily perform maintenance/inspection work such as replacement of the rear auxiliary clamping rod 143, the rear auxiliary clamping rod 143 has the opening 143A of the rear auxiliary clamping rod 143 and the weld bolt of the second bracket 145. After being inserted into 145C, it is detachably attached with a nut 145E.

As shown in FIG. 21, the rear portion of the rear auxiliary clamping rod 143 extends rearward along the feed chain 12B and extends rearward of the rear end of the clamping rod 12C. As shown in FIG. 22, the width of the rear auxiliary clamping rod 143 in the left-right direction is narrower than the width of the feed chain 12B in the left-right direction, and the rear auxiliary clamping rod 143 is formed in the feed chain. It is mounted between the left and right outer plates of 12B. Further, the shaft 147 is arranged in parallel with the drive shaft 68D for driving the feed chain 12B and the support shaft of the tension wheel 17B, and is inserted into the opening 148D of the third bracket 148 and the like, and then from the other side to the shaft 147. The washer 147A is inserted and detachably attached to the rotation support portion 144B of the first bracket 144 by the stop pin 147B.

It should be noted that the rear auxiliary clamping rod 143 secures a wide maintenance/inspection work space after moving the clamping rod 12C upward by half-opening the handle barrel cover 50D during maintenance/inspection work of the feed chain 12B and the like. Therefore, when viewed from the left side of the machine body, it can be rotated counterclockwise about the shaft 147 via the second bracket 145. When a large amount of grain rods are supplied to the feed chain 12B, the upper surfaces of the side plates 145B and 145B of the second bracket 145 and the inner surface of the upper plate 148A of the third bracket 148 are in contact with each other. The side auxiliary clamping rod 143 and the hand handling restriction member 140 move upward while maintaining a predetermined distance.

The hand-handling restricting member 140 formed of a round bar or the like is rotatably attached to a shaft 147 supported by a rotation support portion 144B of the first bracket 144 via a third bracket 148.

The third bracket 148 is formed by including an upper plate 148A and side plates 148B and 148B extending downward on both left and right sides of the upper plate 148A. Since the third bracket 148 covers the second bracket 145 from above and is attached to the shaft 147 supported by the rotation support portion 144B of the first bracket 144, the lateral distance between the side plates 148B, 148B of the third bracket 148 is The space between the side plates 145B, 145B of the second bracket 145 is formed wider, and an arcuate opening 148D for inserting the shaft 147 is formed in the front part of the side plates 148B, 148B.

The front portion of the handholding restraint member 140 is fixed to the inner surface of the rear plate 148A of the third bracket 148 and the inner surface of the left side plate 148B. Further, an operating portion 150 detected by the mode switch 146 is provided at an outer portion near the opening 148D of the left side plate 148B in a state in which the hand-handling regulating member 140 is rotated from the regulated state to the non-regulated state. An urging means supporting portion 151 is formed at the rear portion of the operating portion 150, and the rear portion of the urging means 152 for suppressing the fluctuation of the hand-handling regulating member 140 in the regulated state or the non-regulated state due to the vibration generated during traveling is attached. Has been formed.

As shown in FIG. 21, the hand-handling regulation member 140 is formed of a front regulation plate 140A extending toward the rear side and a rear regulation plate 140B inclined rearward from the rear end of the front regulation plate 140A. In order to facilitate the turning operation of the hand-handling regulating member 140 by an auxiliary worker, a grip 140C made of resin or the like in which the operating direction is specified is attached to the rear portion of the rear-side regulating plate 140B. Further, in order to prevent contact between the auxiliary worker and the feed chain 12B during the turning operation of the hand handling restriction member 140 by the auxiliary worker, as shown in FIG. 140A extends rearward, and the rear regulating plate 140B extends outward from the rear end portion of the front regulating plate 140A and then rearward so that the rear portion thereof is substantially parallel to the feed chain 12B. Is formed to extend toward. Although the grip 140C is attached to the rear end portion of the rear side regulation plate 140B in the second regulation means, it may be attached to the intermediate portion in the front-rear direction of the rear side regulation plate 140B. Note that the arc-shaped arrows in FIG. 22 indicate the rotation of the hand-handling regulating member 140 from the regulated state to the non-regulated state and from the non-regulated state to the regulated state.

Further, in order to prevent retention of the hand-caught grain rods placed on the upper surface of the hand-handling regulating member 140 in the non-regulated state by an auxiliary worker, the front part of the front-side regulation plate 140A in the non-regulated state in a side view is prevented. A notch 140D is formed on the upper surface portion of the rear restriction plate 140B in the non-restricted state at a rear-down inclination angle substantially the same as the rear-down inclined angle of the rear-restriction plate 140B. It is preferable that no protrusion is provided on the upper surface of 140B.

As shown in FIG. 23, the operating portion 150 includes a front operating portion 150A extending rearward from a portion of the left side plate 148B facing the center of the opening 148D in the front-rear direction, and a rear operating portion 150A. It is formed of a rear operating portion 150B that is inclined rearward and downward from the end portion.

When the hand-handling restricting member 140 is in the restricting state, the front operating portion 150A and the rear operating portion 150B are arranged at positions where they are not detected by the mode switch 146. When the hand-handling restricting member 140 starts rotating counterclockwise in the left side view from the restricting state to the non-restricting state, first, the mode switch 146 detects the front operating portion 150A, which causes the control device 85 to operate. , It is determined that the mode is changed from the normal work mode to the manual work mode. Next, when the hand-handling restricting member 140 is in the non-restricting state, the mode switch 146 detects the rear operating portion 150B, which causes the controller 85 to keep the hand-handling operation mode in the continuous state. Judge that there is. It should be noted that the actuating part 41A of the first restricting means 100 can be used instead of the actuating part 150 of the second restricting means 110.

The urging means supporting portion 151 extends from the left side plate 148B toward the left side which is the uncut side, the left and right extending portions 151A located below the rear end portion of the rear operating portion 150B, and the left and right extending portions. The front-rear extension 151B is formed from a front-rear extension 151B extending forward from the left end of the front-rear 151A, and the center of the front-rear extension 151B in the front-rear direction and the vertical direction is an opening for engaging the rear portion of the biasing means 152. The portion 151C is opened.

In order to prevent the durability of the biasing means 152 from being deteriorated by the action of unnecessary twisting force and to efficiently act the biasing means of the biasing means 152 on the hand-handling regulating member 140, the front-rear extension portion 151B is As shown in FIG. 22, it is arranged on the rear extension line of the biasing means supporting portion 144C of the first bracket 144.

In order to stably maintain the regulated state and the non-regulated state of the hand-handling regulating member 140 by the urging means 152, as shown in FIG. 23, the urging means supporting portion that engages the front portion of the urging means 152. The opening 144D formed in the lower portion of the 144C is located on the lower side in front of the shaft 147 that is inserted into the rotation support portion 144B, and the opening 151C of the front-rear extension 151B is located behind the shaft 147. It is located on the lower side. As a result, when the hand-handling restricting member 140 is rotated counterclockwise in the left side view from the restricting state to the non-restricting state, the urging means 152 moves upward from below the shaft 147 in side view, On the other hand, when rotating from the non-regulated state to the regulated state in the clockwise direction as viewed from the left side, the urging means 152 moves from above the shaft 147 to below the so-called fulcrum.

Further, in order to prevent the hand-handling restricting member 140 from rotating from the non-restricted state to the restricted state due to vibration or the like, the biasing means 152 in the non-restricted state is stronger than the tension generated by the biasing means 152 in the restricted state. It is preferable to increase the generated tension.

In order to prevent the urging means 152 from being damaged due to contact with the outside, the urging means supporting portion 144C is provided inside the machine body on the side opposite to the uncut grain rod side of the first bracket 144 to support the urging means. The portion 151 may be provided inside the body of the hand control member 140.

A mode switch 146 is attached to the switch support portion 144A of the first bracket 144. As the mode switch 146, a contact sensor, a displacement sensor, or a pressure sensor can be used.

The mode switch 146 is sandwiched between the switch support 144A and the plate 149. That is, the opening portions 144a formed on both sides of the switch support portion 144A in the left-right direction, the opening portions 146A formed on both sides of the mode switch 146 in the left-right direction, and the female portions formed on both sides of the plate 149 in the left-right direction. A mounting screw 149B is inserted into the screw 149A from above the switch support portion 144A, and the mode switch 146 is sandwiched between the switch support portion 144A and the plate 149 and attached. In order to prevent the mode switch 146 from dropping due to the plate 149 coming off due to the loosening of the mounting screw 149B, the rear end of the frame 4A extends below the plate 149 so that the lower surface of the plate 149 is placed at the bottom of the frame 4A. It is pushed up by the upper surface of the rear end.

The mode switch 146 is shown in FIGS. 21 and 22 in order to prevent the transportation of the grain rod transported from the transport device 34 to the feed chain 12B and prevent the mode switch 146 from being damaged due to contact with the grain rod. As shown, it is mounted above the transportation path of the grain rods from the transportation device 34 to the feed chain 12B and in front of the holding rod 12A.

During normal mowing and threshing work, the hand-holding restricting member 140 is rotated clockwise around the shaft 147 and is formed between the rear end of the frame 4A and the front end of the gripping rod 12A. In a restricted state in which the space above the rod 143 is covered, during manual handling work, the manual handling restricting member 140 is rotated counterclockwise about the shaft 147 to be clamped with the rear end of the frame 4A. The space above the rear auxiliary clamping rods 143 formed between the front ends of the rods 12C is opened to a non-regulated state.

That is, the hand-handling restricting member 140 rotates downward, the distance between the rear part of the hand-handling restricting member 140 and the front part of the holding rod 12A is reduced, and the hand-handle grain culm to the feed chain 12B is reduced. Of the feeding control member 140 and the hand-handling control member 140 pivots upward, and the distance between the rear portion of the hand-handling control member 140 and the front portion of the holding rod 12A increases, and the feed chain 12B. It is configured to switch to a non-regulated state in which the supply of hand-handled culm to the plant is permitted.

In order to maintain a good posture of the grain rods transferred from the transport device 34 to the threshing part transport device 12, an auxiliary transport device is provided at a position offset to the right side of the upper surface or the lower surface of the support body 37 facing the tip transport device 34B. It can also be arranged.

The auxiliary transporting device is provided with a lug belt and a protruding belt that move from the front side to the rear side to transport the tips of the grain rods taken over from the tip transporting device 34B to the feed chain 12B. Further, by transmitting the rotation of a counter shaft 71, which will be described later, to the auxiliary transporting device through the output shaft 10B of the hydraulic continuously variable transmission 10 for the feed chain, the moving speed of the lugged belt or the like is fed to the feed chain 12B. It is preferable that the moving speed is the same as the moving speed. Instead of the hydraulic continuously variable transmission 10 for the feed chain, a hydraulic mechanical continuously variable transmission configured by combining a hydrostatic continuously variable transmission and a planetary gear may be used.

As shown in FIGS. 3 to 5, the left suspension base 35 is attached to the upper side of a base 35A that is erected on the machine body frame 1. A feed chain turning shaft 35B extending in the up-down direction is rotatably supported on the left front portion of the suspension table 35 to rotatably support the base portion of the horizontal transmission frame 35C that pivotally supports the left side portion of the horizontal transmission cylinder 36. There is. Further, in order to easily perform maintenance/inspection operations of the weeding rod 31, the raising device 32, and the like of the reaping device 4 by rotating the lateral transmission cylinder 36 around the feed chain rotating shaft 35B, a horizontal transmission frame is provided. 35C is formed in a circular arc shape having a downward convex portion from the base portion to the tip portion in a front view. As will be described later, the threshing unit transporting device 12 that transports the grain rod also rotates about the feed chain rotating shaft 35B.

The suspension base 35 on the right side is attached to the upper side of a base 35A that is erected on the machine body frame 1. A support member 35D that pivotally supports the right side portion of the horizontal transmission cylinder 36 is attached to the upper end of the suspension table 35. The support member 35D includes a front support member and a rear support member that are divided into a substantially semi-circular shape. When the right side portion of the lateral transmission cylinder 36 is pivotally supported, the lateral transmission cylinder 36 is centered around the feed chain rotating shaft 35B in order to engage the front and rear side support members and perform maintenance of the reaping device 4 or the transmission 65. When the reaping device 4 is rotated to the left side, the front and rear support members are disengaged and the lateral transmission cylinder 36 is pulled out forward. Further, in order to increase the rigidity of the left and right suspension bases 35, 35 against deformation and the like, a connecting frame 35E is installed at an intermediate portion in the vertical direction of the left and right suspension bases 35, 35.

The rotation of the engine 62 is transmitted to the traveling hydraulic continuously variable transmission 66 via the pulley 66B supported by the input shaft of the traveling hydraulic continuously variable transmission 66, and is transmitted to the traveling hydraulic continuously variable transmission 66. The transmitted rotation is supported by a right end portion of a horizontal transmission shaft 36A installed in the horizontal transmission cylinder 36 via a pulley (not shown) supported by the output shaft of the traveling hydraulic continuously variable transmission 66. The horizontal transmission cylinder 36 and the horizontal transmission shaft 36A are rotated by being transmitted to the pulley 36A. The rotation transmitted to the lateral transmission shaft 36A is transmitted to the raising device 32, the cutting blade device 33, the transport device 34, etc. of the reaping device 4 via a transmission shaft (not shown) incorporated in the frames 27 and 28. To be done.

Further, the rotation of the engine 62 is transmitted to the traveling hydraulic continuously variable transmission 66 via the pulley 66B supported by the input shaft of the traveling hydraulic continuously variable transmission 66, and the traveling hydraulic continuously variable transmission is provided. The rotation transmitted to 66 is transmitted to the left and right crawlers of the traveling device 2 via the transmission 65.

<Thrush>
As shown in FIG. 4, the threshing device 3 is provided with a handling room 50 for threshing culms at the front upper part and a sorting room 51 for sorting threshed grains under the handling room 50. There is.

In the handling chamber 50, a handling barrel 55 having a plurality of handling teeth is supported by a handling barrel shaft pivotally supported by front and rear walls 50A and 50C. Then, a grain culm supply port 26A is opened in the lower left portion of the front wall 50A of the handling chamber 50, a handling port 26B is opened in the lower portion of the left wall 50B along the handling barrel 55, and a rear wall 50C is provided. A straw outlet 26C is opened in the lower left portion. Further, on the left side of the handling room 50, a threshing section transporting device 12 for sandwiching and carrying the stock root of the grain rod along the handling port 26B is installed in parallel, and threshing transported by the threshing section transporting device 12 is The completed straw rod is taken over by the straw conveying device 58 provided behind the threshing portion conveying device 12 and further conveyed to the rear, and then cut by the pair of straw cutters 59 and discharged to the outside. ..

An oscillating sorting device 52 is provided in the upper part of the sorting chamber 51, and a lower part of the sorting chamber 51 includes a first Karako 53A that blows air to the sheave in front of the oscillating sorting device 52 and the oscillating sorting device. The first trough 53B that collects the leaking grains, the second Karako 53C that blows air to the rear sieve of the rocking sorter, and the grain with branch stems that leak from the rocking sorter The second gutter 53D for collecting the second item is installed in order from the front side. The grain collected in the first gutter 53B is transferred to the Glen tank 5 by the first transfer spiral 53b installed in the first gutter 53B, and the grain collected in the second gutter 53D is It is transferred to the No. 2 processing chamber by the No. 2 transfer spiral 53d installed in the No. trough 53D.

The rear part on the right side of the handling chamber 50 communicates with the dust treatment chamber, and inside the dust treatment chamber, a dust treatment cylinder 57 having screw blades on its outer peripheral surface is axially supported in the front-rear direction to perform dust treatment. On the front side of the chamber, a No. 2 processing chamber for processing and reducing No. 2 is provided. Inside the No. 2 processing chamber, a No. 2 processing cylinder 56 having an intermittent spiral blade on its outer peripheral surface is pivotally supported. Further, on the upper rear side of the rocking/sorting shelf, a dust exhaust fan 48 for sucking and discharging the straw waste generated during threshing/sorting is disposed outside the machine.

<Threshing unit transport device>
As shown in FIGS. 3 and 6, the threshing section transporting device 12 includes a holding rod 12A located on the upper side and a feed chain 12B located on the lower side. The holding rod 12A is biased toward the feed chain 12B by a biasing means 14 such as a spring with respect to the handling body cover 50D of the handling chamber 50. The feed chain 12B is driven by being wound around tension wheels 17B and 17B rotatably supported at the front and rear ends of the upper chain rail 18A and a drive sprocket 17A provided between the tension wheels 17B and 17B. It is an endless chain. The feed chain 12B on the working side, which is mounted on the upper chain rail 18A, clamps the clamping rod 12A and the root of the grain stem in the process of moving from the front side to the rear side. In order to prevent the conveyed grain rod from being wound around the end portion of the feed chain 12B, the rear tensioning wheel 17B uses an idle sprocket having winding prevention plates 17D on both sides. Is preferred.

On the side surface of the handle barrel cover 50D, an assisting worker who is performing a manual handling work can easily adjust the speed VF1 of the feed chain 12B during the manual handling work to improve the workability. A dial 6A is provided. Further, in order to efficiently perform the speed adjustment of the speed VF of the feed chain 12B in accordance with the amount of the hand-operated grain rod, the speed adjustment dial 6A is provided around the rear auxiliary clamping rod 43 on which the hand-operated grain rod is mounted. The speed control dial 6A may be disposed on the side panel of the cockpit 6 in order to efficiently assist an auxiliary operator who is unfamiliar to the operator seated in the cockpit 6.

A speed control pedal 45 for adjusting the speed VF of the feed chain 12B during manual handling is provided on the machine body frame 1 in front of the threshing device 3 together with the speed control dial 6A or in place of the speed control dial 6A. You can also

In a side view, the gripping rod 12A is provided in a slanting upward direction from the grain culm supply port 26A of the handling chamber 50 to the straw discharge port 26C along the handling port 26B. The upper chain rail 18A on which the feed chain 12B on the working side is mounted is inclined rearward from the front end of the front of the horizontal shaft transmission cylinder 36, and then gently rearwardly inclined to the front of the grain culm supply port 26A of the handling chamber 50. After reaching, it is inclined rearward along the handling opening 26B from the grain culm supply opening 26A of the handling room 50 to the straw opening 26C so as to face the sandwiching rod 12A. After that, it horizontally extends rearward from the straw outlet 26C and then inclines rearwardly to reach the rearward rear end of the front end portion of the tip conveying device 34A. In order to easily change the length in the front-rear direction of the threshing part conveying device 12 in accordance with the change in the number of cutting lines of the mowing device 4, it is preferable that the upper chain rail 18A has a division structure that can be divided in the front-rear direction. is there.

The lower chain rail 18B on which the non-acting side feed chain 12B is mounted is inclined rearward from the upper front end of the counter shaft 71 that transmits the rotation of the engine 62 to the drive sprocket 17A and reaches the rear end. The rear end of the lower chain rail 18B is provided in front of the rear tension wheel 17B and below the straw outlet 26C.

A guide 18D that guides the non-acting side feed chain 12B to a drive sprocket 17A provided below the front end of the lower chain rail 18B is detachably attached to the front end of the lower chain rail 18B. .. The guide 18D is provided above the counter shaft 71, and is formed in a substantially quarter circle shape. In addition, it is preferable to provide a cover (not shown) above the guide 18D to prevent the counter shaft 71 and the like from being contaminated by a drop of oil or the like.

Below the lower chain rail 18B, a support frame 19 that supports the upper chain rail 18A and the lower chain rail 18B by the rail connecting plate 18C is provided. That is, the feed chain 12B is supported by the support frame 19. In addition, the connecting plate 18E connected to the upper chain rail 18A and the lower chain rail 18B prevents straw debris that falls from the feed chain 12B during grain transfer from falling to the drive unit of the sorting chamber 51. A straw debris guide plate (not shown) is attached.

As shown in FIGS. 3 and 5, the front end portion of the support frame 19 is attached to a plate 19A attached to a bracket 19B with bolts or the like, and the bracket 19B is a feed chain rotation shaft provided on a suspension base 35 on the left side. It is rotatably attached to the upper and lower ends of 35B. When the feed chain 12B is rotated about the feed chain rotating shaft 35B, the feed chain rotating shaft 35B is wound around the feed chain 12B in order to reduce the intrusion of the tip of the feed chain 12B into the inside of the machine body. Is provided upright near the rear side of the front tension wheel 17B.

In order to prevent the support frame 19 from interfering with the feed chain hydraulic continuously variable transmission 10 and the like, the support frame 19 is seen from the front end from the input end 10A and the gear box 68 of the feed chain hydraulic continuously variable transmission 10 from the front end. After extending rearwardly between the output shafts 68B of the above, the first transmission motor 10C is curved at about 90 degrees and extends upward. Then, after extending upward in front of the counter shaft 71, the counter shaft 71 is inclined rearward from the lower side of the guide 18D along the lower side of the lower chain rail 18B, so that the front and rear direction of the lower chain rail 18B is approximately the same. It reaches the central part.

Thus, when performing maintenance and inspection of the feed chain 12B, the feed chain hydraulic continuously variable transmission 10, and the like, the support frame 19 is rotated about the feed chain rotation shaft 35B, and the feed chain 12B is rotated. This can be easily performed by separating the rear part from the main body of the threshing device 3. In order to facilitate maintenance and inspection of the feed chain hydraulic continuously variable transmission 10, the feed chain rotating shaft 35B is erected on the front side of the front portion of the feed chain hydraulic continuously variable transmission 10. ing.

In a side view, the front tension wheel 17B is provided in the vicinity of the front of the horizontal shaft transmission cylinder 36 that transmits the rotation of the engine 62 to the reaping device 4, and the rear tension wheel 17B is, as shown in FIG. It is provided near the rear of the front end of the tip transport device 34A. The drive sprocket 17A is disposed between the front and rear tension wheels 17B, 17B in the front-rear direction and is biased toward the front tension wheel 17B side, and the horizontal shaft transmission cylinder 36 and the feed chain 12B are disposed. The counter shaft 71, which transmits the rotation of the engine 62, is located substantially in the center. Further, in the vertical direction, it is located substantially in the center of the support frame 19 that extends rearward and supports the counter shaft 71 and the lower chain rail 18B and the like. A tension sprocket 17C whose base is supported by a drive shaft 68D, which will be described later, is provided between the front tension wheel 17B and the drive sprocket 17A.

As a result, the feed chain 12B moves upward from the drive sprocket 17A, then moves along the tension sprocket 17C to reach the front tension wheel 17B, and from the front tension wheel 17B to the upper chain rail 18A. The upper side is moved toward the rear tension wheel 17B. After that, the feed chain 12B moves from the rear tension wheel 17B toward the front lower chain rail 18B, and then from the rear end of the lower chain rail 18B to the upper side of the lower chain rail 18B to the front guide 18D. After that, it moves along the guide 18D to reach the drive sprocket 17A.

As shown in FIG. 6, the rotation of the engine 62 is transmitted to the feed chain hydraulic continuously variable transmission 10 via a counter shaft 71, is accelerated and decelerated by the carrier 68, and then drives the threshing section conveyor 12. It is transmitted to the output shaft 68B connected to the sprocket 17A.

Both sides of the counter shaft 71 are pivotally supported by a pair of support members 80 which are erected upright toward the center of the front wall 50A of the threshing device 3 in the vertical direction. The rotation of the engine 62 is transmitted to the counter shaft 71 via a pulley 71A supported on the right end of the counter shaft 71.

The rotation transmitted to the counter shaft 71 is transmitted to the handling cylinder 55 via the pulley 71C supported on the left side of the pulley 71A and the belt 92, and to the right side of the pulley 71E supported on the left end of the counter shaft 71. It is transmitted to the input shaft 10A of the hydraulic continuously variable transmission 10 for the feed chain via the supported pulley 71D, belt 93 and the like. The rotation transmitted to the input shaft 10A of the hydraulic continuously variable transmission 10 for the feed chain is transmitted to the gear box 68 via the output shaft 10B as shown in FIG. And transmitted to the output shaft 68B. The rotation transmitted to the output shaft 68B is transmitted to the drive sprocket 17A of the feed chain 12A via the coupling 68C. The drive sprocket 17A is rotatably supported by the drive shaft 68D.

The drive shaft 68D is supported by a plate 19C attached to the right side of the support frame 19, and when the support frame 19 is rotated with respect to the feed chain rotation shaft 35B, the output shaft 68B and the drive sprocket 17A by the coupling 68C. Is disconnected, the rotation of the engine 62 is not transmitted to the drive sprocket 17A, and the feed chain 12B, the guide 18D and the like can be replaced safely. Instead of the coupling 68C that connects the output shaft 68B and the drive shaft 68D, a meshing clutch or a pawl clutch may be provided at the ends of the output shaft 68B and the drive shaft 68D that face each other.

As shown in FIG. 7, the gear box 68 is attached to the right side surface of the rear side plate 11B that is erected upright toward the front side of the front wall 50A of the threshing device 3 and is biased downward. Further, in order to effectively utilize the space on the front side of the threshing device 3, a feed chain hydraulic continuously variable transmission 10 is attached to the left side surface of the box 68, and further, a feed chain hydraulic continuously variable transmission. A first speed change motor 10C for rotating a trunnion shaft 10F of a hydraulic type continuously variable transmission 10 for a feed chain is attached to the rear side of 10.

Further, as shown in FIG. 20, a first shift motor 10C for rotating a trunnion shaft 10F of the feed chain hydraulic continuously variable transmission 10 and a first shift motor 10C at the rear side of the feed chain hydraulic continuously variable transmission 10. A second transmission motor 10F, which has a larger output than the transmission motor 10C and rotates the trunnion shaft 10F at a high speed, can be installed in parallel.

The gear gear 10c of the first gear shift motor 10C and the gear gear 10e of the second gear shift motor 10F, which are attached to the machine body frame 1, are engaged with the tip end portion of the sector gear 10G whose base end portion is supported by the trunnion shaft 10F. There is. A control device 85 described later drives the first variable speed motor 10C to rotate the trunnion shaft 10F in the normal mowing mode, and drives the second variable speed motor 10F to rotate the trunnion shaft 10F in the manual handling mode. The second variable speed motor 10F freely rotates in the mowing mode, and the first variable speed motor 10C freely rotates in the manual handling mode.

The hydraulic continuously variable transmission 10 for the feed chain and the carrier box 68 can be attached to the machine body frame 1, the first speed change motor 10C and the second speed change motor 10F can be attached to the carrier box 68, and the input shaft 10A is provided. In place of the feed chain hydraulic continuously variable transmission device 10 in which the pump portion and the motor portion including the output shaft 10B are integrated, a feed chain hydraulic continuously variable transmission device in which the pump portion and the motor portion have a split structure is provided. It can also be used.

Further, the first variable speed motor 10C changes the speed of the feed chain hydraulic continuously variable transmission 10 in conjunction with the drive speed of the reaping device 4. Specifically, it is preferable to detect the rotation speed output from the traveling hydraulic continuously variable transmission 66 and transmitted to the reaping device 4, and operate the first transmission motor 10C according to the rotation speed. is there.

The front end of the rear plate 11B and the rear end of the front plate 11A provided on the connecting frame 35E of the left and right suspensions 35, 35 are connected by a loosely inserted pin in order to reduce vibration. .. The rear portion of the rear plate 11B is connected to the bracket on the counter shaft 71 side by fastening means such as bolts. Further, below the lateral transmission shaft 36A, a cutting position sensor 36S that detects the vertical rotation position of the post-pruning frame 28 is provided.

On the left side of the base 35A on the right side, as shown in FIG. 6, in order to shorten the hydraulic system path, hydraulic system paths such as the feed chain hydraulic continuously variable transmission 10 and the traveling hydraulic continuously variable transmission 66 are provided. A control valve 9A for controlling opening and closing of the control valve 9A is provided. On the right side of the control valve 9A, an oil tank 9B that supplies oil to the feed chain hydraulic continuously variable transmission 10, the traveling hydraulic continuously variable transmission 66, and the like. It is provided.

In order to effectively utilize the space below the front of the threshing device 3 and prevent the interference of the feed chain 12B, the belt 93, etc. when the feed chain 12 rotates, the input shaft 10A of the hydraulic continuously variable transmission 10 for the feed chain. The output shaft 10B and the output shaft 68B of the gear box 68 are vertically arranged vertically.

In order to prevent hydraulic pressure loss, the input shaft 10 of the pump section of the feed chain hydraulic continuously variable transmission 10 is provided below the output shaft 10B, and the feed chain hydraulic continuously variable transmission 10 and control are performed. The valve 9A and the hydraulic path are shortened.

In order to facilitate the winding of the feed chain 12B, the output shaft 68B of the gear box 68 is provided above the output shaft 10B of the hydraulic continuously variable transmission 10 for the feed chain to shorten the length of the feed chain 12B. ing.

<narrow guide>
As shown in FIG. 2, a narrow guide 20 is provided along the side on the left side of the combine, that is, the overhanging position that projects to the outside of the combine and the storage position that is stored inside. Has been.

The narrow guide 20 is composed of a front side portion 20A and a rear side portion 20B which are indirectly connected to each other, and a front end portion of the front side portion 20A is freely rotatable to a front end portion of a rear side weeding frame 31 of a leftmost grass body 31. And a rear end portion of the rear side portion 20B is supported by a support member provided on the left side portion of the machine body frame 1 so as to be movable in the front-rear direction. Further, the narrow guide 20 is switched between the extended posture and the stored posture by a switching means (not shown) having a link structure.

In addition, when the mode switch 6B is connected and the normal cutting mode is changed to the manual operation mode, the narrow guide 20 is maintained in the stored posture in order to prevent contact between the narrow guide 20 and an auxiliary operator who performs the manual operation. It

<Transmission mechanism>
Next, the transmission mechanism of this embodiment will be described. The rotation of the engine 62 is, as shown in FIG. 9, a first route A transmitted to the feed chain hydraulic continuously variable transmission 10 and a second route B transmitted to the traveling hydraulic continuously variable transmission 66. Then, it is branched and transmitted to the third path C which is transmitted to the gear box 39 in front of the Glen tank 5.

In the first path A transmitted to the hydraulic continuously variable transmission 10 for the feed chain, the rotation of the engine 62 is controlled by the pulley 70A supported by the crankshaft 70, the belt 90, and the pulley 71A supported by the counter shaft 71. Is transmitted to the counter shaft 71 via. The first path A is provided with a threshing clutch 90A that connects and disconnects the power transmission downstream of the belt 90.

The rotation of the counter shaft 71 is transmitted to the second processing cylinder 56 and the dust removal processing cylinder 57 via the pulley 71B, the belt 91 and the like, and the handling cylinder 55 and the straw transfer device via the pulley 71C and the belt 92 and the like. It is transmitted to 58. The rotation of the counter shaft 71 is transmitted to the input shaft 10A through the pulley 71D, the belt 93, and the pulley 10D supported by the input shaft 10A of the feed chain hydraulic continuously variable transmission 10. Further, the rotation of the counter shaft 71 is performed by the pulley 71E supported on the left side of the pulley 71D and the belt 94, through the first Kara 53A, the first transfer spiral 53b, the second Kara 53C, the second transfer spiral 53d, and the dust removal. It is transmitted to the fan 48, the swing selection device 52, and the straw cutter 59.

The rotation of the input shaft 10A is transmitted to the gear box 68 via the output shaft 10B, is accelerated and decelerated by the plurality of gears 68A installed in the gear box 68, and then is transmitted to the output shaft 68B pivotally supported by the gear box 68. Being transmitted.

The gear box 68 is provided with a feed chain speed sensor 10S that measures the rotational speed of a gear 68A provided on the output shaft 10B of the feed chain hydraulic continuously variable transmission 10.

The rotation of the output shaft 68B is transmitted to the drive shaft 68D via the coupling 68C, and is transmitted to the feed chain 12B via the drive sprocket 17A pivotally supported at the left end of the drive shaft 68D. In order to easily rotate the feed chain 12B around the feed chain rotating shaft 35B provided upright on the suspension base 35 on the left side, as shown in FIG. The center of the feed chain rotation shaft 35B is provided, and the feed chain rotation shaft 35B is vertically extended in the vertical direction. As shown in FIG. 6, the left end of the output shaft 68B is located on the left side of the left end of the counter shaft 71. The drive sprocket 17A is extended and is also supported on the left side of the pulley 71E.

On the left side of the cockpit 6, a main speed change lever 16 for remotely controlling a traveling hydraulic type continuously variable transmission 66 is provided, and a transmission 65 is provided on the rear side of the main speed change lever 16 according to the fall state of the planted grain rod. An auxiliary speed change lever 15 is provided for switching operation of a stepped auxiliary speed change device provided in the internal transmission mechanism. The main shift lever 16 is provided with a speed increasing switch 16A and a deceleration switch 16B for remotely operating the hydraulic continuously variable transmission 10 for the feed chain. By pressing the speed increasing switch 16A for about 2 seconds or longer, the rotation of the output shaft 10B of the feed chain hydraulic continuously variable transmission 10 can be changed to the maximum rotation speed, and the speed increasing switch 16A is pressed for about 1 second. Then, the rotation of the output shaft 10B can be gradually increased in speed. Similarly, if the deceleration switch 16B is pressed for about 2 seconds or longer, the rotation of the output shaft 10B of the feed chain hydraulic continuously variable transmission 10 can be changed to the minimum rotation speed, and the deceleration switch 16B is shortened by about 1 second. When pressed, the rotation of the output shaft 10B can be gradually reduced in speed. The speed increasing switch 16A and the speed reducing switch 16B are collectively referred to as a speed change switch S. Further, a main shift lever position sensor 16S for measuring the shift position of the main shift lever 16 is provided below the main shift lever 16, and a sub shift lever 15 for measuring the shift position of the sub shift lever 15 is provided below the sub shift lever 15. A shift lever position sensor 15S is provided.

In the second path B transmitted to the traveling hydraulic continuously variable transmission 66, the rotation of the engine 62 causes the rotation of the pulley 70B supported by the crankshaft 70, the belt 96, and the traveling hydraulic continuously variable transmission 66. Input is made to the traveling hydraulic continuously variable transmission 66 via a pulley 66B supported by the input shaft.

The rotation of the input shaft of the traveling hydraulic continuously variable transmission 66 is transmitted to the transmission 65 via the output shaft of the traveling hydraulic continuously variable transmission 66, and is accelerated or decelerated by a plurality of gears incorporated in the transmission 65. After that, the power is transmitted to the traveling device 2 via the left and right axles 65A pivotally supported by the transmission 65 and the drive wheels 65B fixed to the tip ends of the axles 65A. The rotation of the output shaft of the traveling hydraulic continuously variable transmission 66 is output from the output shaft 65C, which is output from a portion on the transmission path in the transmission 65, which is on the side of the auxiliary transmission which is on the upper side of the output shaft 65C. It is transmitted to the pulley 36B supported at the right end of the lateral transmission shaft 36A via the output pulley 65D attached to the transmission pulley 65D and the transmission belt 65E. A reaping clutch 65F is configured to urge the tension roller to the transmission belt 65E.

That is, the rotation of the engine 62 transmitted to the input shaft of the traveling hydraulic continuously variable transmission 66 is accelerated and decelerated by the traveling hydraulic continuously variable transmission 66, and then branched, and one of which is pivotally supported by the transmission 65. Since the power is transmitted to the crawlers of the traveling device 2 via the left and right axles 65A, and the other is transmitted to the raising device 32 of the reaping device 4, the conveying device 34, etc. via the lateral transmission shaft 36A, the traveling speed of the traveling device 2 is reduced. V, the raising speed of the raising device 32 of the reaping device 4, and the conveying speed VH of the conveying device 34 are determined with a certain relationship. For example, when the traveling speed V of the traveling device 2 is increased, the raising speed of the raising device 32 of the harvesting device 4 and the conveying speed VH of the conveying device 34 are also increased, and the traveling speed V of the traveling device 2 is decreased. In this case, the raising speed of the raising device 32 of the reaping device 4 and the conveying speed VH of the conveying device 34 are also low. The axle 65A and the lateral transmission shaft 36A are respectively provided with a traveling speed sensor 66S and a conveyance speed sensor 34S that measure the rotation speed.

Further, in the transmission path in the transmission 65, left and right side clutch gears 65H are rotatably supported on both left and right sides of a center gear 65G provided at a position on the lower side of the auxiliary transmission. .. Between the center gear 65G and the left and right side clutch gears 65H, left and right claw clutch type side clutches 65I are respectively formed. The left and right side clutches 65I mesh with left and right axle gears attached to the bases of the left and right axles 65A.

The left and right side clutches 65I slide the side clutch gear 65H in the left-right direction by a shifter (not shown) that is operated by a left-right tilting operation of the steering lever arranged in front of the cockpit 6, and the side gears 65G move from the center gear 65G. The transmission is cut off by removing it.

Further, the left and right side clutches 65I are interlocked with the depression operation of the scraping pedal 22 arranged on the front lower step of the cockpit 6, and when the scraping pedal 22 is depressed, the left and right side clutches are The center gear 65G and the side clutch gear 65H are disengaged via 65I, and the rotation of the engine 62 is not transmitted to the axle 65A. On the other hand, when the depression of the take-in pedal 22 is released, the center gear 65G and the side clutch gear 65H are engaged via the left and right side clutches 65I, and the rotation of the engine 62 is transmitted to the axle 65A.

When one side of the field is mowed to the edge, the main transmission lever 16 is operated to the neutral position and stopped, and the scraping pedal 22 is stepped on to depress the center gear 65G and the side clutch gear 65H via the side clutch 65I. The engagement is released to stop the rotation of the axle 65A.

When the main shift lever 16 is operated again to the forward side with the combine stopped, the output shaft 65C is driven by the output of the traveling hydraulic continuously variable transmission 66, and the harvesting device 4 is driven via the harvesting clutch 65F. To be done. At this time, since the left and right side clutches 65I are disengaged, the traveling device 2 is not driven forward and the stopped state is maintained. With this configuration, it is possible to mow the planted grain culms that are still in the mowing device 4 by operating the scraping pedal 22 and the main shift lever 16 in a state in which the mowing device 4 has been mowed and stopped.

The reaping clutch 65F can be interlocked with the depression operation of the take-in pedal 22.
That is, when the take-in pedal 22 is stepped on, the output shaft 65C of the transmission 65 and the lateral transmission shaft 36A of the harvesting device 4 are connected via the harvesting clutch 65F to drive the harvesting device 4. On the other hand, when the depression of the take-in pedal 22 is released, the connection between the output shaft 65C of the transmission 65 and the lateral transmission shaft 36A of the harvesting device 4 is released via the harvesting clutch 65F, and the driving of the harvesting device 4 is stopped. To do.

When one side of the field has been cut to the edge, the main transmission lever 16 is operated to the neutral position to stop the vehicle body. When the take-in pedal 22 is stepped on with the combine stopped, the harvesting device 4 is driven. At this time, since the main gear shift lever 16 is moved to the neutral position, the traveling device 2 is not driven forward and the stopped state is maintained.

In the third path C that is transmitted to the discharge spiral 39A of the Glen tank 5, the rotation of the engine 62 is transmitted to the lower portion of the Glen tank 5 via the pulley 70C supported by the crankshaft 70, the belt 97, the gear box 39, and the like. Is transmitted to the discharge spiral 39A provided in the. The rotation of the discharge spiral 39A is transmitted to the auger spiral 39B installed in the discharge cylinder 7 provided at the rear of the Glen tank 5. The third path C is provided with a discharge clutch 97A that connects and disconnects the power transmission downstream of the belt 97.

<How to drive/stop the feed chain>
Next, a method of driving and stopping the feed chain 12B of this embodiment will be described. As shown in FIG. 10, on the input side of the control device 85 provided in the cockpit 6, a traveling speed sensor 66S that detects the velocity V of the traveling device 2 and a velocity VH of the transport device 34 of the reaping device 4 are provided. A transport speed sensor 34S for detecting, a feed chain speed sensor 10S for detecting the speed VF of the feed chain 12B of the threshing part transport device 12, an auxiliary shift lever position sensor 15S for detecting the lever position of the auxiliary shift lever 15, Acceleration/deceleration switches 16A and 16B for increasing/decreasing the speed VF of the feed chain 12B provided on the main shift lever 16 and speed adjustment for increasing/decreasing the speed VF of the feed chain 12B provided on the side surface of the handle barrel cover 50D. A dial 6A, a mode switch 6B for switching to a manual mode, a reverse switch 6C for rotating the feed chain 12B in the reverse direction from the rear side to the front side, and the presence or absence of a grain rod conveyed on the feed chain 12B is detected. The grain rod sensor 34C is connected to a stop switch 6D for urgently stopping the drive of the feed chain 12B provided on the side surface of the handle barrel cover 50D via a predetermined input interface circuit. On the other hand, on the output side, a first speed change motor 10C for driving the trunnion shaft 10F of the hydraulic continuously variable transmission 10 for the feed chain in the normal mowing mode, and a hydraulic continuously variable transmission for the feed chain in the manual operation mode. The second variable speed motor 10E that drives the ten trunnion shafts 10F is connected through a predetermined output interface circuit.

The mode switch 6B is not limited to the switch manually operated by the operator. That is, in order to prevent disturbance of the posture of the grain rod that is inherited from the end portion of the transport device 34 of the harvesting device 4 to the start end portion of the feed chain 12B, the end portion of the transport device 34 has a vertically rotating hand. The handle restriction member 40 and a rear auxiliary clamping rod 43 are provided below the handle restriction member 40. At the time of switching to the hand-handling mode, the hand-handling regulating member 40 is rotated upward about the shaft 44A in order to mount the hand-handling grain rod on the rear side auxiliary pinching rod 43 and the feed chain 12B. Switch from regulated state to non-regulated state. It is also possible to provide a mode switch 46 for turning on/off in association with the operation of rotating the hand-handling restriction member 40, and use the mode switch 46 as the mode switch 6B.

(First drive method of feed chain)
FIG. 11 shows the first driving method of the speed VF of the feed chain 12B. The horizontal axis represents the traveling speed V of the traveling device 2 detected by the traveling speed sensor 66S, and V1 and V2 are the first and second set values of the traveling speed V. The left vertical axis indicates the speed VF of the feed chain 12B detected by the feed chain speed sensor 10S, VF1 and VF2 are the first and second set values of the speed VF of the feed chain 12B, and the right vertical axis is the transport speed. The speed VH of the transport device 34 detected by the sensor 34S is shown, VH1,2 are the first and second set values of the transport speed VH, and VH1,2 are the travel speed V of the traveling device 2 that is the first and second set values. Corresponds to V1 and 2 o'clock speed.

The solid line indicates the speed VF of the feed chain 12B, and the broken line indicates the speed VH of the transport device 34.

First, the control device 85 determines whether or not the mode switch 6B is input. When it is determined that the mode switch 6B is not input, the control device 85 determines that the speed VH of the transfer device 34 (the transfer speed sensor 34S). Input value) is lower than the first set value VH1.

When it is determined that the speed VH of the transport device 34 is lower than the first set value VH1, the speed VF of the feed chain 12B is controlled to the speed calculated by the following formula 1 as shown in the first state. The transport speed VH of the transport device 34 with respect to the travel speed V of the travel device 2 changes depending on the gear position set by the auxiliary shift lever 15.

Formula 1 VF=K×V
However, K=VH1/V1
On the other hand, when it is determined that the speed VH of the transport device 34 is equal to or higher than the first set value VF1, the speed VF of the feed chain 12B is calculated by the following equation 2 as shown in the second state. To control.

Formula 2 VF=VF1+1.5 to 2.5×K×(V-V1)
However, K=(VH2-VH1)/(V2-V1)
Next, the control device 85 determines whether the speed VF of the feed chain 12B (input value of the feed chain speed sensor 10S) is lower than the second set value VH2 of the transport device 34.

When it is determined that the speed VF of the feed chain 12B is lower than the second set value VH2 of the transport device 34, as shown in the second state, the speed VF of the feed chain 12B is set to the speed calculated by Equation 2. Control.

On the other hand, when it is determined that the speed VF of the feed chain 12B is equal to or higher than the second set value VH2 of the transport device 34, as shown in the third state, the speed VF of the feed chain 12B is set to the second set value VF2. To maintain.

When the traveling speed V of the traveling device 2 detected by the traveling speed sensor 66S exceeds the maximum speed V2 for a predetermined time, a warning is given to the operator by a monitor or the like arranged in front of the cockpit 6. Is preferred.

(Second drive method of feed chain)
FIG. 12 shows a second driving method of the speed VF of the feed chain 12B. The solid line indicates the speed VF of the feed chain 12B, the broken line indicates the speed VH of the transport device 34, the same members as those in the first driving method are designated by the same reference numerals, and duplicate description will be omitted.

First, the control device 85 determines whether or not the mode switch 6B is input. If it is determined that the mode switch 6B is not input, the control device 85 maintains the speed VF of the feed chain 12B in the first to third states described above. To do.

On the other hand, when it is determined that the mode switch 6B is input, the speed VF of the feed chain 12B is controlled to the speed calculated by the following expression 3. The speed VF of the feed chain 12B can be increased/decreased in the range of 10 to 20% by the speed control dial 6A. When the grain rod is placed on the feed chain 12B by manual operation, the speed control dial 6A can be adjusted. It is preferable to operate 6A to increase the speed VF of the feed chain 12B.

Formula 3 VF=0.25 to 0.5×VH1
(First stop method of feed chain)
FIG. 13 shows a first stopping method of the feed chain 12B driven by the first driving method.

The operation state of the stop switch 6D is illustrated in the first stage from the upper side of FIG. 13, and in the second stage, the feed chain hydraulic continuously variable transmission 10 for increasing and reducing the rotational speed transmitted to the feed chain 12B. The position situation of the trunnion shaft 10F is illustrated, and the speed VF of the feed chain 12B is illustrated in the third stage. Further, the driving state of the engine 62 is illustrated in the fourth stage of FIG. 13, and the speed VH of the transfer device 34 provided in the reaping device 3 that is driven in conjunction with the traveling device 2 is illustrated in the bottom stage. ..

First, the control device 85 determines whether or not the stop switch 6D is input. If it is determined that the stop switch 6D is not input, the control device 85 drives the feed chain 12B by the first drive method.

On the other hand, when it is determined that the stop switch 6D has been input, the first shift motor 10C connected to the trunnion shaft 10F of the feed chain hydraulic continuously variable transmission 10 is driven to change the rotational position of the trunnion shaft 10F. The output shaft 10B of the feed-type hydraulic continuously variable transmission 10 is stopped by rotating the output shaft 10B so that the output shaft 10B is in the neutral position. As a result, the driving force applied to the feed chain 12B is shut off and the rotation of the feed chain 12B is stopped.

Further, when it is determined that the stop switch 6D is input, the engine 62 is stopped to block the rotation transmitted to the traveling hydraulic continuously variable transmission 66, and the traveling device 2 and the harvesting device 4 are provided. The rotation of the transport device 34 is stopped.

In order to stop the feed chain 12B more quickly, it is preferable to rotate the trunnion shaft 10F beyond the neutral position to a position slightly on the reverse rotation side.

(Second method of stopping the feed chain)
FIG. 14 illustrates a second stopping method of the feed chain 12B driven by the second driving method. The same members as those in the first stopping method are designated by the same reference numerals, and duplicate description will be omitted.

First, the control device 85 determines whether or not the stop switch 6D is input. If it is determined that the stop switch 6D is not input, the control device 85 drives the feed chain 12B by the second drive method.

On the other hand, if it is determined that the stop switch 6D has been input, the rotation position of the trunnion shaft 10F is changed by driving the second shift motor 10E connected to the trunnion shaft 10F of the feed chain hydraulic continuously variable transmission 10. The output shaft 10B of the feed-type hydraulic continuously variable transmission 10 is stopped by rotating the output shaft 10B so that the output shaft 10B is in the neutral position. As a result, the driving force applied to the feed chain 12B is shut off and the rotation of the feed chain 12B is stopped.

Further, when it is determined that the stop switch 6D is input, the engine 62 is stopped to block the rotation transmitted to the traveling hydraulic continuously variable transmission 66, and the traveling device 2 and the harvesting device 4 are provided. The rotation of the transport device 34 is stopped.

In order to make an emergency stop of the feed chain 12B, the second speed change motor 10E sets the reduction ratio and the like larger than those of the first speed change motor 10C used in the first stop method, and the first speed change motor 10C sets the trunnion shaft 10F. The trunnion shaft 10F can be rotated at a higher speed than in the case of rotating. Further, in order to stop the feed chain 12B more quickly, the trunnion shaft 10F is rotated beyond the neutral position to a slightly reverse rotation side position, the rotation of the output shaft 10B is stopped by the rotation sensor 68G, and the output shaft 10B is restarted. It is preferable that the trunnion shaft 10F be rotated from the reverse rotation side position to the neutral position after the rotation of the output shaft 10B is detected again or after the rotation of the output shaft 10B is detected again for 1 to 2 seconds.

The rotation direction of the feed chain 12B can be switched by operating the reversing switch 6C in order to remove grain rods and the like stuck between the feed chain 12B and the sandwiching rod 12C. In this case, in order to prevent careless inversion of the feed chain 12B and enhance the safety of the auxiliary worker, the feed chain 12B is driven in the reverse direction only when the reverse rotation switch 6C is operated, or the auxiliary worker operates. In order to secure a time to separate from the combine, the reverse rotation switch 6C is operated and the feed chain 12B is reversely driven after 1 to 2 seconds have passed, or in order to notify the surrounding collaborators of the reverse rotation state of the feed chain 12B, It is preferable to ring the horn when the feed chain 12B is reversed.

Further, after the stop switch 6D is operated and the feed chain 12B, the engine 62, etc. are stopped, in order to restart the engine 62, the mode switch 6B needs to be released to switch to the normal mowing mode.

3 Threshing device 4 Harvesting device 12A Nipper rod 12B Feed chain 26B Handle opening 34 Transfer device 40 Hand handle regulating member 42 Rear plate (plate part)
43 Rear auxiliary clamping rod 44 Bracket (supporting part)
46 mode switch (switch)
50 handling room

Claims (3)

A threshing device (3) arranged behind the reaping device (4) and a feed arranged along a handling opening (26B) formed on one side of a handling room (50) of the threshing device (3). A combiner comprising a chain (12B) and a holding rod (12A) arranged on the upper side of the feed chain (12B) so as to face rearward from the transport end portion side of the reaping device (4). The vertically extending rotatable hand-handling restricting member (40) and the grain culm conveyed from the transfer device (34) on the reaping device (4) side to the feed chain (12B) are provided in the feed chain. A rear side auxiliary clamping rod (43) for clamping with the (12B) is provided, and the hand-handling regulating member (40) is rotated downward during normal reaping and threshing work to handle the hand-handling regulating member ( 40) The distance between the rear part of the holding rod (12A) and the front part of the holding rod (12A) is reduced, and the hand restraint member (40) is located above the rear auxiliary holding rod (43) in a side view of the machine body. The feed chain (12B) in the restricted state where the placement of the hand-operated grain culm is restricted, and the hand-operation restricting member (40) is rotated upward during the hand-operation operation. In front of the feed chain (12B), the gap between the rear part of the hand-holding restricting member (40) and the front part of the holding rod (12A) is enlarged and the upper side of the rear auxiliary holding rod (43) is opened. A combine characterized by being configured so that it can be switched to a non-regulated state in which placing of hand-operated grain culms is permitted on the section. The combine according to claim 1, wherein the hand-handling regulating member (40) is provided with a plate portion (42) in the vertical direction. The combine harvester according to claim 2, wherein a switch (46) that is pressed during manual handling work is provided, and the switch is switched to the manual handling mode when the switch (46) is pressed.

Images