JPH0411468Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to a grain culm feeding device for a combine harvester that reaps grain culms.

(b) Prior Art Conventionally, a combine harvester in which the grain culm harvested by a reaping device is fed to a threshing device using a vertical conveying device that also controls the handling depth for threshing processing was developed in 1973-
This combine harvester is already known from Publication No. 17795, etc., and this combine is provided with a grain culm lifting section at the front of the threshing device, and the grain culm transferred from the end of the vertical conveying device to the grain culm lifting section is transferred. , held by a guide rod pivoted above the starting end of the grain culm clamping conveyor attached to the threshing device,
The terminal end of the guide rod was inserted between the starting end of the feed chain and the clamping rail that constituted the grain culm clamping and conveying body.

Further, when threshing the harvested grain culm, the guide rod is retracted and rotated upward and is locked above the starting end of the grain culm clamping and conveying body.

Furthermore, it is already known to equip the rear part of the longitudinal conveying device with a guide rod pointing toward the grain lifting section.

(c) Problems to be solved by the invention The guide rod in the known combine harvester is restricted by the shape of the grain culm holding conveyor of the threshing device, and its operation is not smooth. In addition, although the end of the vertical conveying device moves up and down when adjusting the handling depth, the guide rod only rotates around the top depending on the amount of culm. As a result, the inheritance of grain culms from the vertical conveyance device was uncertain, resulting in culm leakage and culm clogging.

Furthermore, since the locking position of the guide rod was above the grain culm clamping and conveying body of the threshing device, the locking/unlocking operation position was high and the operation was difficult.

Furthermore, if the guide rod is attached to the rear of the vertical conveyance device, when the vertical conveyance device tilts, the guide rod and the guide rod will tilt together, changing the position and angle with respect to the grain culm lifting section, making it impossible to inherit the grain culm. It was smooth and warm.

(d) Means for solving the problem The present invention provides a grain culm lifting section in front of the supply port of the threshing device, a guide rod is attached to the conveying surface of the grain culm lifting section, and the guide rod The base of the guide rod is rotatably supported back and forth at a position corresponding to or in the vicinity of the horizontal axis, which is the tilting center of the vertical conveyance device, in side view, and the tip of the guide rod is positioned near the starting end of the grain culm clamping conveyance body. Although a locking device is provided to releasably lock the guide rod and the guide rod rotates according to the amount of culm to be lifted, ensuring reliable lifting, the vertical conveying device does not have enough handling depth. When the guide rod is moved up and down to adjust the grain height, the base of the guide rod is rotated near the center of tilt of the vertical conveying device, and the relative position with the grain culm lifting section is kept approximately constant, thereby ensuring the inheritance of the grain culm. In addition, the above-mentioned problems are solved by making it possible to engage and disengage the guide lever easily by operating the guide lever.

(E) Effect Grain culm harvested by the reaping device is transported later by a vertical conveyance device, and from the end of the conveyance, it is passed through the grain culm lifting section to the grain culm clamping conveyance body of the threshing device. The grain is threshed using a device.

When the grain culm is transferred, the guide rod rotates around the lower part according to the amount of culm, so it is not affected by the shape of the grain culm holding conveyance body, and the handling depth can be adjusted. When the vertical conveyance device is tilted up and down, the base of the guide rod rotates around the horizontal axis, which is the center of tilt of the vertical conveyance device, so its relative position with respect to the grain culm lifting section hardly changes. Therefore, it is possible to ensure grain culm inheritance.

Further, when the upper part of the guide rod is engaged and disengaged from the locking position in order to thresh the hand-cut grain culm, the upper part of the guide rod can be easily engaged and disengaged from a lower position by operating the guide rod.

(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 has 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 with each other, and the three on the right side are engaged in rows in the horizontal direction, and are attached to the vertical shafts 20.
The rear part of the stem scraping belt 12... is wound around the pulley 21... on the upper part of...0..., and the sprockets 22, 22 attached to the second and fourth vertical shafts 20, 20 from the left and their rear. Since the original raking chains 11, 11 are stretched over the drive sprockets 23, 23, the second raking wheel 10 from the left drives the first raking wheel 10 meshing with it,
The third raking wheel 10 rotates the third and fifth raking wheels 10, 10 meshing on both sides thereof, and as a result, the fifth raking wheel 10 rotates counterclockwise in plan view. Outer stock chain 1 corresponding to
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

Further, the shaft 20a of the rightmost scraping wheel 10 is located at the upper end of the lower stem scraping chain 1 as shown in FIG.
3a, and the shaft of the rear driven sprocket of the stem scraping chain 13a drives the upper stem scraping chain 1.
Further, the pulley 21 on the left end has two V-grooves, and a stem scraping belt with a lug is provided between the other V-groove and the floating pulley 21a which is pivotally supported on the side. 12a is stretched to perform grain culm raking in a wide raking passage, which will be described later.

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 stroke, 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 side 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 base 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 a guide rod is disposed oppositely to a chain with a conveyance claw with a holding gap therebetween. 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
The handling depth is adjusted by vertically tilting the lift arm 16c about the horizontal axis P of the gear case 28 via the gear case 28.

[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. Scraping claws 17c are freely attached and protrude upward from the guide rail 17b during the upward stroke.
. . . The ear side lifting body 18 has a raking claw 18a longer than the raking claw 17c of the stock base lifting member 17.
As shown in FIG. 1, a lifting guide plate 34 is provided on the panicle side of the panicle side lifting body 18, and a lifting guide plate 34 is provided between the stock base lifting body 17 and the panicle side lifting body 18. An upper inclined guide plate 35 whose upper end is fixed to the lower surface of the entrance plate 33a, and a movable guide plate 36 whose lower part is hinged to the upper surface of the gear case 28 and overlaps with the lower upper surface of the upper inclined guide plate 35. and.

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 connects to and disengages from a clutch pawl carved on the side surface of the clutch pedal 45, and the shifter 44 connects the wire 4 to the traveling clutch pedal 45.
6, so when the traveling clutch pedal 45 is depressed during work, the traveling clutch is disengaged, and since the reaping device and vertical conveyance device 16 are interlocked with the traveling 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. The pin 50 is pivotally supported on the side surface so as to be rotatable back and forth as shown by the solid line and chain line in FIG. Since the position is very close to the horizontal axis P, which is the center of rotation of the vertical conveyance device 16, in side view, the guide rod 47 can freely tilt around the base and come close to the conveyance surface of the stock head lifting body 17. It always acts as a presser.

Further, 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, when the guide rod 47 is rotated to the forward A position (when adjusting the shallow handling) or the B position (when adjusting the deep handling) shown in FIG. , the worker 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 when returning to the harvesting and threshing work. ,
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 pinching rail 1b and whose front part is open is pushed outward. The front part is received by the stopper 52 and set in a predetermined guiding position.

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 has a cylindrical frame on the horizontal axis P with a top link 53, and a lower part with a support 55 with a pair of left and right lower links 54, 54. It is supported by a frame 31 and a machine base 3 that are integral with the engine, and moves up and down while maintaining a substantially constant posture by the expansion and contraction of a hydraulic cylinder 56. Power from the engine E is input to a submission 57 via a clutch 58. The rear transverse shaft case 60 has three gear cases 61, 62, 63, and is transmitted through a refraction transmission mechanism 81, which will be described later.
is equipped with four gear cases 66, 67, 25, 25, and the right end of the front horizontal shaft case 65 and the right end of the rear horizontal shaft case 60 are integrated by a connecting frame 71 screwed into an L-shape with a holder 70. The gear case 61 at the left end of the rear horizontal shaft case 60 and the second gear case 6 from the left of the front horizontal shaft case 65
7 are connected by a shaft case 72 in the front-rear direction, thereby forming a transmission case 73 that also serves as an integral frame.

Further, the reaping frame 74 is connected to each of the above-mentioned weeding bodies 7...
A plurality of vertical frames 75... to which intermediate weeding bodies 8... are attached are connected by two horizontal frames 76, 77 and a cutting blade frame 78. As shown in FIG. 4, the transmission case 73 overlaps the front lower surface of the frame body and is welded at two places on the left and right to form an integral structure, and the vertical frame 75 at the right end is divided near the rear and bolts 80 are attached. are removably connected.

The refraction transmission mechanism 81 has 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 a pulley 84 in front 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, and the bearing 86a of the intermediate shaft 86 has a rear bending arm 92 whose rear part is rotatably fitted into the bearing tube 85a of the output pulley 85. The rear surface is supported by a semicircular receiver provided at the front end of the front bending arm 9.
The upper part of the frame 3 is fixed to the bearing 86a, and the lower part is loosely fitted to the rear horizontal shaft case 60. Therefore, when the preprocessing frame is raised and lowered in a substantially constant posture by the hydraulic cylinder 56, the transmission 82 is connected to the machine base 3. In contrast, the rear horizontal shaft case 60 is a transmission case 73.
The front refraction arm 93 and the rear refraction arm 9 move up and down while changing the relative distance integrally with the
The threshing device 1 is separately driven by the engine E, and the intermediate shaft 86 of the threshing device 1 is bent and extended using the intermediate shaft 86 of the threshing device 1 as a bending point, so that the distance between the shafts does not change and smooth transmission can be performed.

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 transverse shaft case 60 by a slanted cylinder 94 having a back transmission shaft inside. Since the front fulcrum of the top link 53 coincides with the horizontal axis P of the top link 53, reliable transmission can be performed without difficulty, and the cylindrical transmission case 19 of the grain culm lifting device 9 cannot be raised from the gear case 66. It is driven by the ivy shaft 19a.

[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-hand raising 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, and the upper inclined part of the upper guide plate 98 has a corresponding raising body 9a..., 9b at its substantially front surface.
Screw it on the back of the with bolt 99..., and the lower part
As shown in Figures and Figure 7, the upper stem scraping chain 1
It is removably screwed onto the support frame of No. 3 with stays 99a, 99a, with a slight gap 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-active 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 rear direction is driven by the shaft of the floating sprocket 9d in a, via a chain, and the sprocket supported on the upper and lower parts of the chain case 102 has a combing pawl 103...a combing chain attached to the chain 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) (where l 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 of the stem scraping chain 13 located at the lower stage or 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, the grass is then pulled apart by the raising claws and weeded to the panicle side without any force. 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 pulling body 9b on the uncut land side.
The combing weeding device 100 or the pulling body 9b is placed on the outside of the
A combing weeding device of approximately the same height as the above shall be attached.

[Effect] Next, the effect will be explained.

Grass is separated 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 stem raking belts 12 . , the grain culm that has been raked from the left raking route to the cross-feeding route 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 the stock, and at the end of the conveyance, the stock base conveyor 26 and the lower part of the stock base lifting body 17 overlap.
It is smoothly transferred and held by the guide rod 47 and transferred to the stock head lifting body 17 and the rake claw 17c, and the ear side falls onto the ear side lift member 18 and is moved to the rake claw 18a. It was inherited and shipped to each of them.

At this time, the terminal end of the vertical conveyance device 16 is inserted between the starting ends of the stock head lifting body 17 and the panicle side lifting body 18, so that the terminal end of the grain culm that has fallen from the terminal end of the vertical conveyance device 16 and On the panicle side, there is a stock lifting body 17 and a panicle side lifting body 1.
8 and is securely received on the vertical conveyance device 16.
The stock head transporter 26 and the ear side transporter 27 are transferred at wide intervals outside the transport end, and the stock is transported in a stable horizontal position, and the stock head part is connected to the threshing device 1. Feed chain 1a and pinch rail 1
The feed is transferred to the starting end of b in an orderly manner, without disturbing the attitude of the ear side, and without causing any delay in lifting.
3 can be supplied.

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 simply by reducing the angle between the shaft and the shaft, natural transmission can be achieved.

Therefore, when threshing hand-cut grain culms, the method shown in Figure 6a
When the guide rod 47 is pulled forward, the spring plate 51 is displaced as shown by the chain line in FIG.

At this time, the main clutch is set to the neutral position by the gear shift lever, the traveling device 2 and the pretreatment device are stopped, the traveling clutch pedal 45 is not depressed, and the clutch 43 of the lifting device is in the engaged state. Therefore, the feed chain 1 of the thresher 1 is driven by the engine E separately from the traveling device 2, etc.
a is driving the lifting device.

Therefore, if the grain culm is placed on the starting end of the lifting device by hand, the grain culm can be easily fed from a low position, and the grain culm is lifted with the stock base side and the panicle side at approximately the same height. The grains are then threshed in an orderly manner.

When returning to reaping and threshing work after manual handling work, the guide rod 47 is rotated backwards and placed between the spring plate 51 and the pincher rail 1b and pushed backwards, so that the front surface of the stopper 52 is Since it has a receding angle, the spring plate 51 deforms and can be pushed into the rear part of the stopper 52. When you release your hand in this state, the spring plate 51 returns to its original state and the guide rod 47 moves from the spring plate 51. It is set between the stepped portion and the stopper 52, and rotates back and forth between them depending on the amount of culm.

Further, during the reaping operation, the vertical conveyance device 16 moves up and down around the horizontal axis P depending on the length of the grain culm to adjust the handling depth. At this time, the guide rod 47 is moved very close to the horizontal axis P. Since it rotates around this position, no matter how you adjust the handling depth, the relative position between the starting end and the stock head lifting body 17 will hardly change, and the stock head part, which tends to come apart, can be easily removed. Moreover, it can be held and transported reliably.

(g) Effects of the invention As mentioned above, the present invention includes a vertical conveying device 16 that adjusts the handling depth by tilting up and down centering on the rear part between the reaping device and the threshing device 1 having the grain culm clamping and conveying body. In the provided combine harvester, a grain culm lifting section is provided in front of the supply port 33 of the threshing device 1, a guide rod 47 is provided on the conveying surface of the grain culm lifting section, and the lower part of the guide rod 47 is connected to the Vertical conveyance device 16
The guide rod 47 is rotatably supported back and forth at or near a position corresponding to the horizontal axis P, which is the center of tilting, in side view, and the upper part of the guide rod 47 is detachable near the starting end of the grain culm clamping conveyor. In addition, since a fixing device is provided to hold the grain so as to move back and forth according to the amount of culm, when the handling depth is adjusted by tilting the vertical conveyance device 16 according to the culm length of the harvested grain culm, the guide rod The base of the guide rod 47 is tilted near the center of tilt of the vertical conveying device 16, and the change in the position of the base of the guide rod 47 constituting the grain culm receiving part and the grain culm lifting part is extremely small, regardless of the culm length. This allows for reliable inheritance while preventing clogging and leakage of grain culms.

Further, when threshing the hand-cut grain culm, the guide rod 47 can be held and the engaging/disengaging operation can be easily performed even at a low position.

[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, FIG. 5 a is a longitudinal sectional view of the lifting 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 lifter is attached inside, Fig. 6a is a side view of the lifting device, and b is a plane of the guide rod locking part. 7 is an exploded side view of the grain culm raking part, FIG. 8a is a vertical 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 mechanism. 16...Vertical conveyance device, 17...Stock base lifting body, 1
8... panicle side lifting body, 26... stock base conveying body, 27...
...Ear side conveyor, 47...Guide rod, P...Horizontal shaft,
51... Spring plate, 52... Stopper.

Claims (1)

[Claims for Utility Model Registration] (1) A vertical conveying device 16 is provided between the reaping device and the threshing device 1 having a grain culm holding conveying body, which adjusts the handling depth by vertically tilting around the rear part. In the combine, a grain culm lifting section is provided in front of the supply port 33 of the threshing device 1, a guide rod 47 is provided on the conveying surface of the grain culm lifting section, and the lower part of the guide rod 47 is connected to the vertical conveying section. The device 16 is rotatably supported at or near a position corresponding to the horizontal axis P, which is the center of tilting of the device 16 in side view, and the upper part of the guide rod 47 is engaged and disengaged near the starting end of the grain culm clamping and conveying body. 1. A grain culm feeding device for a combine harvester, characterized in that it is provided with a fixing device that can hold the grain so as to move back and forth depending on the amount of culm. (2) The grain culm feeding device for a combine harvester according to claim 1, wherein the fastening device is constituted by an elastic plate with a stepped portion and a stopper 52 opposed to the stepped portion at a distance.