JPH0451557Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Field of industrial application The present invention relates to a horizontal conveying device in a combine harvester that transports and supplies harvested grain culms to a rear threshing device for threshing processing.

(b) Prior art Conventionally, a threshing device is mounted on a machine base having a traveling device, and a pre-processing device consisting of a reaping device and a grain culm conveying device is placed in front of the threshing device, and is moved up and down centered around the supply port of the threshing device. It is attached to a rotating pre-processing frame, and a horizontal conveyance path is provided at the rear of the raking path of the reaping device, and the starting end of the vertical conveyance device faces the end of the horizontal conveyance path so as to be able to continue conveying. A combine harvester in which a guide plate is provided between the lateral conveyance chains that face the supply section of the threshing device and constitute the lateral conveyance path is already known.

(c) Problems to be solved by the invention In the known combine harvester, the pre-processing device moves up and down around a horizontal axis provided near the supply port, so when the pre-processing device is raised and lowered, the reaping device and grain The angle of the culm conveying device varied greatly, and the reaping performance, grain culm raking performance, and grain culm transport performance varied.

Further, the transmission device to the reaping device needs to be long and extend from the center of rotation of the pretreatment device to the reaping device.

(d) Means for solving the problem The present invention has a threshing device mounted on a machine base having a traveling device, and a pre-processing device consisting of a reaping device and a grain culm conveying device in front of the threshing device with upper and lower links. It is mounted so that it can be raised and lowered, and a horizontal conveyance path is provided at the rear of the raking path of the reaping device, and the starting end of the vertical conveyance device faces the end of the horizontal conveyance path so as to be able to be transferred, and the rear end is used to feed the threshing device. A bending transmission device, which is composed of a transmission wheel and a transmission band and expands and contracts around the front part, is interposed between the transmission case provided at the front part of the machine base and the horizontal conveyance path. The transmission wheel of the refraction part of the refraction transmission device is covered with a horizontal guide plate having an arc shape in side view, and the horizontal guide plate is used as a guide for the grain culm to be fed laterally. The above-mentioned problems are solved by using the device as the means and the cover of the transmission wheel, and also the problems caused by employing a refractive transmission device.

(e) Operation When adjusting the cutting height, the pretreatment device is regulated by the upper and lower links and moves up and down with little change in posture, and the refraction transmission device transmits power while expanding and contracting the refraction section.

Also, when cutting the harvested grain culms and transporting them horizontally,
The horizontal guide plate that covers the front surface of the transmission wheel serves as a cover for the transmission wheel, and guides the rear surface of the grain culm that is being fed laterally while preventing the grain culm from being caught in the transmission wheel. can be covered by a single horizontal guide plate, and the grain culms that have been transported laterally are fed back by a vertical conveyor and fed to a threshing device.

(F) Example An example of the present invention will be explained with reference to the drawings.
1 is a self-threshing type threshing device mounted on a machine base 3 having a traveling device 2; on the other side, from the front, there is an operation panel 4, a cockpit 5, an engine E below it, and an engine E at the rear. is equipped with a grain tank, etc., and in front of it are a plurality of sowing bodies 7..., intermediate sowing bodies 8..., grain culm lifting device 9, raking wheels 10..., and stock raking chains 11.
..., a stalk raking belt with lugs 12 . . ., a stalk raking chain with raking claws 13 . Vertical conveyance device 16 toward the rear and upward direction.
and between the terminal end of the vertical conveyance device 16 and the supply section of the threshing device 1, there is provided a lifting device comprising a stock head lifting device 17 and a ear side lifting device 18 arranged in parallel. It is provided.

Next, the configuration of each part of the five-row mowing type combine harvester will be explained in detail.

[Reaping device] As shown in FIG. 1, the grain culm pulling device 9 consists of two pairs of lifting bodies 9a whose lifting paths are adjacent to each other, and a pair of lifting bodies 9a which are located on the right side (as viewed from the front) and whose pulling path is on the outside. It is composed of two triggering bodies 9b, and is driven by an upper cylindrical transmission case 19.

The two scraping wheels 10 on the left side are engaged, and the three on the right side are arranged in a row in the horizontal direction and attached to the vertical shafts 20.
Wrap the rear part of the stem raking belt 12... around the upper pulley 21... of the second and fourth belts from the left.
Sprocket 2 installed on the th vertical shaft 20, 20
2, 22 and their rear drive sprocket 2
3 and 23, the second raking wheel 10 from the left drives the first raking wheel 10 meshing with it, and the fourth raking wheel 10 drives the fourth raking wheel 10. The ring 10 rotates the third and fifth scraping wheels 10, 10 meshing on both sides thereof, and as a result, the fifth scraping wheel 10 rotates counterclockwise in plan view, and the corresponding outer The stock of Kakikomi Chain 1
1a is driven by a rear drive sprocket 23a, and a bearing supporting the two raking wheels 10, 10 on the right side is attached to the reaping frame via a mounting bracket 10A that supports the raking wheels 10, 10 so that they mesh with each other. It is removably attached to the

The shaft 20a of the rightmost scraping wheel 10 is located at the upper end of the lower stem scraping chain 13 as shown in FIG.
The shaft of the rear driven sprocket of the stem scraping chain 13a drives the upper stem scraping chain 13a.
Further, the leftmost pulley 21 drives V
The groove has two stages, and a lug-equipped stem raking belt 12a is stretched between the other V-groove and a floating pulley 21a that is pivotally supported on the side. Culm raking is done.

Shafts 24, 2 of the drive sprockets 23, 23
4 stands up from the gear cases 25, 25 as shown in FIG. , the distance between the first weeding body 7 from the left side, which is in front of the cockpit 5 and close to the mowed field, and the intermediate weeding body 8 adjacent thereto is made wider than the width of the weeding path in other parts, and the grain is removed. When reaping perpendicular to the culm rows, or when reaping wide wheat, the machine meanders during the previous process, resulting in uncut areas even if the reaping line is uneven. I have made sure that there is no such thing.

The lateral conveyance chain 15 has a starting end facing toward the rear side of the lateral conveyance terminal end of the left-hand stock stock scraping chain 11,
The terminal end is bent backwards and connects to drive sprocket 1.
5a.

[Vertical conveyance device] The vertical conveyance device 16 includes a stock-side conveyor 26 in which a clamping rail 26a is disposed oppositely on the conveyance surface of a conveyance chain, and an ear-side conveyor body in which guide rods are disposed oppositely at a holding interval on a chain with a conveyance claw. 27, which are driven by a sprocket of a shaft 29 rising from a gear case 28, and the front part of the ear side conveyor 27 has a lateral conveying part parallel to the lateral conveying chain 15. There is.

This vertical conveyance device 16 is connected to a diagonal tube 9 which will be described later.
Link 16 by motor 16a fixed to 4
b..., the lift arm 16c is tilted up and down about the horizontal axis P of the gear case 28 to perform deep tensioning.

[Lifting Feeding Device] In FIGS. 1, 3, and 5, the stock head lifting body 17 and the ear side lifting body 18 are provided with a U-shaped rod 32 on a frame 31 protruding from the front surface of the threshing device 1. are supported via the transport bodies 17, 18.
The starting end faces downward from the terminal end of the stock head conveyor 26, and the terminal end is higher than the entrance plate 33a protruding from the supply port 33 of the threshing device 1; The terminal ends of the panicle-side conveying bodies 27 are arranged in parallel with each other at intervals such that they fit between the starting ends, and the stock head lifting bodies 17 are rotated to the outside of a chain 17a having a low protrusion on each plate and its connecting pin. It is freely attached and stands up and protrudes from the upper guide part of the guide rail 17b during the upward stroke.
In the descending stroke, the rake claws 17c descend while being guided to lie down by the lower guide portion, and the ear side lifting member 18 includes rake claws 18a, which are longer than the rake claws 17c of the stock base lifting member 17. It has a panicle side lifting body 1
As shown in Fig. 1, there is a lifting body guide plate 3 on the ear side of
4, and the stock head lifting body 17 and the ear side lifting body 1
Between 8 and 8, there is an upper inclined guide plate 35 whose upper end is fixed to the lower surface of the entrance plate 33a, and a stock which is screwed onto the upper surface of the gear case 28 and overlaps with the lower upper surface of the upper inclined guide plate 35. A movable guide plate 36 is provided.

Further, the driving sprocket 37 of the stock head lifting body 17 and the driving sprocket 38 of the ear side lifting body 18
As shown in FIG. 5, the driven sprocket 40 of the feed chain 1a is mounted on a shaft 41 which supports the driven sprocket 40, and a clutch 43 in a clutch case 42 moves the driven sprocket 40 by the operation of a shifter 44.
The shifter 44 is connected to and disengaged from a clutch pawl carved on the side surface of the drive clutch pedal 45, and the shifter 44 is
6, so when the travel clutch pedal 45 is depressed during work, the travel clutch is disengaged, and since the reaping device and vertical conveyance device 16 are interlocked with the travel device 2, the machine body, reaping device, etc. are stopped. At the same time, the clutch 43 is disengaged and the lifting device is also stopped.

Furthermore, a guide rod 47 is provided on the upper surface of the stock head transport body 17, and the lower end of this guide rod 47 is connected to the outside of the rear end of the frame 48 that holds the clamping rail 26a of the stock head transport body 26. It is pivotally supported on the side by a pin 50 so as to be rotatable back and forth as shown by solid lines and chain lines in FIG. is located very close to the horizontal axis P, which is the center of rotation of the vertical conveyance device 16, in side view, so the guide rod 47 can freely tilt around the base and approach the conveyance surface of the stock head lifting body 17. It always acts as a presser.

Furthermore, when performing manual handling work, when the main clutch of the submission 57 is disengaged by operating the change lever, the traveling device 2 and the pretreatment device are stopped, so the clutch of the lifting and supplying device is closed without depressing the traveling clutch pedal 45. 43 can be kept in the engaged position, and in this state, the guide rod 47 can be rotated to the forward A position (for shallow tensioning) or B position (for deep tension adjustment) as shown in Figure 6a. Then, the operator can feed the hand-harvested grain culms to the stock head lifting body 17 and the ear side lifting body 18 located at a lower position than the supply port 33 in a comfortable posture, and can return to the harvesting and threshing work. Time,
As shown in FIG. 6, when the guide rod 47 is tilted backward and pushed lightly, the spring plate 51 whose rear part is fixed to the outer surface of the clamping rail 1b and whose front part is open is pushed outward. It comes into contact with the base, and the front part is received by the stopper 52 and set in a predetermined guiding posture.

Thus, the stock head lifting body 17 and the ear side lifting body 1
Since the diameter of the driving sprockets 37 and 38 of No. 8 is smaller than the diameter of the driven sprocket 40 of the feed chain 1a, the conveying speed of the feed chain 1a is V ₁
is larger than the lifting speed V ₂ of the lifting device.

[Pre-processing frame and transmission device] As shown in FIGS. 2 and 4, the pre-processing frame connects the sides of the gear cases 28, 28a that support the horizontal shaft P to the forked part at the front of the top link 53. The lower part near the center of gravity is supported by a pair of left and right lower links 54, 54, the rear part of the top link 53 is the frame 31 integrated with the column 55, and the rear part of the lower links 54, 54 is the The pretreatment device is supported by a stand 3, and is moved up and down while maintaining a substantially constant horizontal position by the expansion and contraction of a hydraulic cylinder 56.
The rear transverse shaft case 60, which is input via the refractive transmission mechanism 81 to be described later, has three gear cases 61, 62, 63, and the front transverse shaft case 65 has four gear cases 66, 67, 25,2
5, and the right end of the front horizontal shaft case 65 and the right end of the rear horizontal shaft case 60 are connected to the L with a holder 70.
The gear case 61 at the left end of the rear horizontal shaft case 60 and the second gear case 67 from the left of the front horizontal shaft case 65 are integrally connected by a connecting frame 71 screwed in a shape of a letter. By connecting them together, a transmission case 73 is formed which also serves as an integral frame and has a horizontal U-shape in plan view.

Further, the reaping frame 74 is connected to each of the above-mentioned weeding bodies 7...
It is constructed by connecting a plurality of vertical frames 75 . . . to which intermediate grass division bodies 8 . is fixed by welding connecting frames 79, 79 in the left and right front and back directions, and the rear part of this reaping frame 74 is overlapped with the front part of the frame body consisting of the transmission case 73 from below as shown in FIG. , the front part of the left side connection frame 79 is attached to the mounting plate 65a that is discharged rearward from the front horizontal axis case 65, and the rear part is attached to the rear horizontal axis case 60.
The front part of the right side connecting frame 79 is attached to the mounting plate 65b which is protruded from the front transverse shaft case 65, and the rear part is attached to the gear case 65. The reaping frame 74 and the transmission case 73 are integrated by tightening and removably fixing them to the lower surface of the frame 62 with bolts, respectively, and the vertical frame 75 on the right end is divided near the rear and can be removably attached with bolts 80. It is combined.

The refraction transmission mechanism 81 includes the first to third and ninth
As shown in the figure, a transmission 82 is attached to the machine frame below the cockpit 5, and the input pulley 8 of the transmission 82 is
3 is driven by the front plate 84 of the submission 57, and its output pulley 85 is interlocked and connected to the pulley 87 of the intermediate shaft 86 by a belt 88 with a clutch pulley, and the sprocket 89 of the intermediate shaft 86 and the rear horizontal shaft case 60 are connected to each other. A sprocket 91 attached to the horizontal shaft 90 is interlocked with a chain 91a. The rear surface is supported by a semicircular receiver provided at the front end, and the front bending arm 93
The upper part of the frame is fixed to the bearing 86a, and the lower part is loosely fitted to the rear horizontal shaft case 60, so when the preprocessing frame is raised and lowered in a substantially constant posture by the hydraulic cylinder 56, the transmission 82 is integrated with the machine base 3. On the other hand, the rear horizontal shaft case 60 moves up and down integrally with the transmission case 73 while changing the relative distance.
Since the front bending arm 93 and the rear bending arm 92 bend and extend at the intermediate shaft 86 as a bending point, smooth transmission can be performed without changing the distance between the shafts. separately driven.

Further, a gear case 28a provided adjacently to the gear case 28 for driving the vertical conveyance device 16 is connected to the gear case 62 of the rear horizontal shaft case 60 by a diagonal tube 94 having a back transmission shaft therein,
Since the front fulcrum of the top link 53 coincides with the horizontal axis P in the gear cases 28, 28a, reliable transmission can be performed without difficulty. gear case 6
The input signal is input through the shaft 19a rising from 6.

Further, since the top link 53 is substantially orthogonal to the stock head lifting body 17 and the ear side lifting body 18 at the middle O of the vertical tilting range as shown in FIGS. When the cutting height is adjusted by raising and lowering the device, the end of the stock lifting chain 26 and the stock lifting body 17
The distance between the grain culms and the like hardly changes, and grain culms can be reliably conveyed regardless of the cutting height.

[Grain culm guide device] A rear horizontal guide plate 95, which also serves as a cover that covers the outside and front side of the refraction transmission mechanism and is L-shaped in plan view, is removably screwed onto the front refraction arm 93 via a stay 96. This rear side guide plate 95
are the triggering bodies 9a and 9 located second and third from the left.
A horizontal guide part 97 of a lower guide plate 97, which is made up of vertical guide parts 97a, 97a extending rearward from the back surface near the lower part of a, and a horizontal guide part 97b connecting the rear ends of the vertical guide parts 97a.
As shown in FIGS. 1 and 3, lower guide plates 97 are also attached to the back surfaces of the first and second lifting bodies 9a and 9b from the right. A wide guide plate 97c extends rearward from the back surface of the left-most triggering body 9a, and its rear part is bent to align with the rear surface of the horizontal conveyance path. F-shaped protrusion 9
7c' and projecting laterally from the holding cylinder of the shaft 19a, the channel-type support arm 97d is fitted and screwed onto the rear surface of the protrusion 97c', so that the rear part of the guide plate 97c is In addition to being able to provide strong support, the protruding portions 97c' come into line contact with the grain culm being traversed, so that the conveying resistance can be reduced and the grain culm can be traversed in an orderly manner.

Further, a lateral guide portion is provided directly above the lower guide plate 97 and is substantially flush with the lateral guide portion 97b of the lower guide plate 97, and the upper guide plate 9 has a triangular shape when viewed from the side.
8, the upper slope of the upper guide plate 98 is screwed almost entirely onto the back surface of the corresponding triggering body 9a...9b with bolts 99... As shown in the figure, the upper stem scraping chain 13
It is removably screwed onto the support frame by stays 99a, 99a, with a slight interval that allows straw waste to pass through.

[Combing weeding device] A combing weeding device 1 is installed in the lower part between the raising bodies 9a, 9a where the non-working side of the grain culm pulling device 9 is close to each other.
00 is installed as shown in FIGS.
A shaft 101 in the front and back direction is driven by the shaft of the floating sprocket 9d in a, via a chain, and the sprocket, which is pivotally supported at the upper and lower parts of the chain case 102, has a combing pawl 103...a combing chain attached so that the chain can be raised and lowered. 104 is tensioned and the shaft 104a of the upper sprocket is driven by the shaft 101 via a bevel gear, the combing pawls 103... are raised from the ground by the guide rail 105 on the rising side as shown in FIG. 1-2 pitches of nails (preferably 1.5-2
pitch) (however, ι in the figure is 1 pitch), and is low enough to correspond to the lower edge of the lower guide plate 97 or the front part of the stem scraping chain 13 located at the lower stage, or to the height corresponding to the stem scraping belt 12. Grass is forcibly separated from the top of the comb by standing up at the combing height, and when the grain culm is delivered to the raising claws at the upper limit of the combing height, from then on, the grass is loosened by the raising claws and weeded all the way to the panicle side. Compared with the method in which the weeds are combed and divided up to the upper part of the raising bodies 9a, culm shedding and pulling out of culms can be reduced.

In addition, the combing claw 103 is moved downward as shown in FIG. 8a.
As shown in FIG. 2, a guide plate 106 enters between the triggering bodies 9a and descends, and the rear surface of the non-acting side of the triggering bodies 9a is open, and the guide plate 106 is bent rearward from the front of this opening. , 106 are formed at the rear end to guide straw, mud, etc. backward and downward from the rear opening of the chain case 102, and to prevent them from entering the opposing openings of the raising bodies 9a, 9a. Straw waste and the like discharged from the raising bodies 9a, 9a fall from the gap 107.

Furthermore, although not shown, there is a lifting body 9 on the uncut land side.
The combing weeding device 100 or the pulling body 9 is placed on the outside of b.
A combing weeding device of approximately the same height as b is attached.

[Effect] Next, the effect will be explained.

Grass is divided by dividing body 7... and intermediate dividing body 8...,
Grain culms that are combed and thinned by the combing weeding device 100 and raised by the grain culm pulling device 9 are raked at the base by the stalk raking belts 12 . . . , 12a and harvested by the cutting blade 14. , the grain culm that has been raked from the left raking path to the cross-feeding path is guided at the rear by the guide plate 97c and the rear lateral guide plate 95, and at the front by the upper guide plate 98 and the lower guide plate 97, The grain culm that has been raked from the intermediate raking route joins the grain culm that is being fed laterally from the left side, and then joins the curved portion at the end of the traversing route.

The grain culms that have been horizontally fed in this way are transferred to the vertical conveyance device 16 and sent later, and during this time, the motor 16a is actuated based on the detection result of a handling depth sensor (not shown), and the vertical conveyance device 16 is moved up and down. The handling depth is adjusted by moving, and at the end of the conveyance, the stock base conveyor 26 and the lower part of the stock base conveyor 17 overlap.
It is transferred smoothly and held by the guide rod 47, and transferred to the stock market feeder 17 and the rake claw 17c, and the ear side falls onto the ear feeder 18 and is transferred to the rake claw 18a. It was inherited and sent to each place.

At this time, the terminal end of the vertical conveyance device 16 enters between the starting ends of the stocking field transport body 17 and the ear field transport body 18,
The stock head and ears of grain that have fallen from the terminal end of the vertical conveyance device 16 are reliably received on the stock plant feeder 17 and the panicle feeder 18, and the stock feeder of the vertical transfer device 16 is It will be transferred to the field at wide intervals outside the conveyance end of the grain-side conveyor 26 and the ear-side conveyor 27, and the stock will be conveyed in a stable horizontal position, and the stock head will be sandwiched between the feed chain 1a of the threshing device 1. It is possible to orderly feed the grains to the starting end of the shearing rail 1b, and to feed the ears to the supply port 33 without disturbing their posture or causing a delay in field feeding.

In cases where the traveling device 2 sinks, such as in wet fields, when the pretreatment frame of the reaping device and the vertical transport device 16 is raised by the hydraulic cylinder 56, the rear bending arm 92 and the front bending arm of the bending transmission mechanism 81 93
Since the distance between the axes remains constant except for the smaller angle, smooth transmission can be achieved.

The grain culms scraped from the scraping path at the end of the pilot seat 5 are scraped at the upper part by the claws of the stem scraping body 13, and then moved to the guide plate 97 along the scraping trajectory of the nails.
c, and the stock side is guided by the rear horizontal guide plate 9.
During this period, the front part of the grain culm is forcibly conveyed in the lateral direction by the upper and lower two stages of stalk raking chains 13, 13 and the rear part of the stock raking chain 11, and then the grain culm that has been transported laterally is The culm is further laterally conveyed on the rear side by the lateral conveyance chain 15 and the front part of the ear side field conveyor 18, and the grain culm of the next raking route joins in the middle part.
At the terminal end, the grain culms that have been raked in by the stock head raking chain 11a, etc. at the other end join together.

In addition, the grain culms that have been merged in this way are supplied to the supply port 33 of the threshing device 1 on the ear side by the vertical conveyance device 16 and the field conveyance device, and the stock portion is fed to the feed chain 1.
The grains are transferred to A and threshed.

(g) Effects of the invention The present invention has a threshing device mounted on a machine base having a traveling device, and a pre-processing device consisting of a reaping device and a grain culm conveying device mounted in front of the threshing device so that it can be raised and lowered by upper and lower links. , a horizontal conveyance path is provided at the rear of the raking path of the reaping device, and a vertical conveyance device 1 is provided at the end of the horizontal conveyance path.
The starting end of the threshing device 6 faces the feeding section of the threshing device, and a transmission wheel and a transmission band are provided between the transmission case provided on the entire machine base and the horizontal conveyance path. The pretreatment device is driven by interposing a refraction transmission device which expands and contracts centering on the front portion, and the transmission wheel of the refraction portion of the refraction transmission device is provided with a lateral guide having an arc shape in side view. The horizontal guide plate 95 is covered with a plate 95 and serves both as a guide means for the grain culm being fed laterally and as a cover for the transmission wheel, so even when the pre-processing device is raised and lowered to adjust the cutting height, the reaping device and It is possible to prevent the reaping performance and grain culm transport performance from deteriorating by suppressing posture fluctuations of the grain culm transport device.

Further, although the pre-treatment device is regulated by upper and lower links to move up and down, it is possible to reliably transmit power to the reaping device using a refractive transmission device having a simple configuration.

Furthermore, by covering the transmission wheel at the front bending part of the refraction transmission with a horizontal guide plate that has an arc shape when viewed from the side, grains being conveyed laterally can be prevented from getting wrapped around the transmission wheel by straw, weeds, etc. You can guide the culm.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention,
Fig. 1 is a developed plan view of the front part of the combine, Fig. 2 is a side view of the same as above, Fig. 3 a is a side view of the same as above with the right side plowing path omitted when viewed from the front, b is a sectional view of the upper guide plate, c is a sectional view of the lower guide plate, FIG. 4 is a plan view of the pre-processing frame, and FIG. 5 a is a longitudinal sectional view of the field feeding device.
b is a cross-sectional view of the same as above, c is a cross-sectional view of an example in which the scraping claw of the stock exchange feeder is attached inside, Figure 6a is a side view of the feeder, and b is a plane view of the guide rod locking part. 7 is an exploded side view of the grain culm raking part, FIG. 8a is a longitudinal sectional plan view of the combing and weeding device, FIG. 8b is a perspective view of the same, and FIG. 9 is a side view of the refraction transmission part. 11... stock scraping chain, 13... stem scraping chain, 15... horizontal conveyance chain, 16... vertical conveyance device, 81... bending transmission mechanism, 87... pulley,
95...Horizontal guide plate, 97a...Vertical guide section.

Claims (1)

[Scope of utility model registration request] A threshing device is mounted on a machine platform 3 having a traveling device 2, and a pre-processing device consisting of a reaping device and a grain culm conveying device is installed in front of the threshing device so that it can be raised and lowered by an upper and lower link, and the raking path of the reaping device is A horizontal conveyance path is provided at the rear of the threshing device 1, and the starting end of the vertical conveyance device 16 faces the terminal end of the horizontal conveyance path so that it can be transferred, and the rear end is connected to the threshing device 1.
A refractive transmission device, which is configured of a transmission wheel and a transmission band and expands and contracts around the front part, is provided between the transmission case provided at the front part of the machine base 3 and the horizontal conveyance path, facing the supply section of the machine. The transmission wheel of the refraction part of the refraction transmission device is covered with a lateral guide plate 95 having an arc shape in side view, and this lateral guide plate 95 is provided with a transversely fed A lateral conveyance device for a combine harvester, characterized in that it serves both as a guide means for grain culms and as a cover for a transmission wheel.