JP2022001024A - Head-feeding combine - Google Patents

Abstract

To provide a head-feeding combine that allows reaped grain culms caught between a pair of raking wheels adjacent to each other in a reaping width direction to be removed easily.SOLUTION: A head-feeding combine includes: a raising device 11 for raising planted grain culms; a cutting blade device 13 for cutting the planted grain culms raised by the raising device 11; a root conveying device 22 for holding and conveying the roots of the reaped grain culms cut by the cutting blade device 13; and a plurality of raking wheels 14 configured to as to rake the roots of the reaped grain culms below the root conveying device 22, which are aligned in the reaping width direction. At least one raking wheel 14 in the pair of raking wheels 14 adjacent to each other in the reaping width direction of the plurality of raking wheels 14 is composed of a movable raking wheel M that can be separated in the reaping width direction from a use state in which the pair of raking wheels 14 is close with respect to the other raking wheel 14.SELECTED DRAWING: Figure 4

Description

The present invention relates to a head-feeding combine.

Conventionally, as a head-feeding combine, for example, the head-feeding combine described in Patent Document 1 is known. The self-removing combine described in Patent Document 1 includes a triggering device that causes a planted grain culm (“raising device [10]” in the document) and a cutting blade device that cuts the planted grain culm caused by the triggering device. (In the document, "cutting device [11]"), a stock source transporting device that sandwiches and transports the stock root of the cut grain culm cut by the cutting blade device (in the literature, "left stock culm transporting device [21], etc.), etc.). It is configured to scrape the stock root of the cut grain culm below the stock root transport device, and is equipped with a plurality of scraping rings (“rotary packer [13]” in the literature) arranged in the cutting width direction. ..

Japanese Unexamined Patent Publication No. 2014-97036

In the head-feeding combine described in Patent Document 1, if the cut grain culms are clogged between a pair of scraping rings adjacent to each other in the cutting width direction, it is difficult to remove the clogged cut grain culms.

In view of the above situation, there is a demand for a head-feeding combine that can easily remove the harvested culm clogged between a pair of scraping rings adjacent to each other in the cutting width direction.

The features of the present invention are a triggering device that causes a planted grain culm, a cutting blade device that cuts the planted grain culm caused by the triggering device, and a stock of the cut grain culm cut by the cutting blade device. A plurality of scraping rings, which are configured to scrape the stock root of the harvested culm under the stock root transport device and are arranged in the cutting width direction, are provided. In a pair of scraping rings adjacent to each other in the cutting width direction, at least one scraping wheel is in a state of use in which the pair of scraping rings approaches the other scraping wheel. It is composed of a movable scraping wheel that can be separated from the culm in the cutting width direction.

According to this feature configuration, by separating the movable scraping wheels, the distance between the pair of scraping rings adjacent to each other in the cutting width direction becomes wide. As a result, the cut grain culm stuck between the pair of scraping rings adjacent to each other in the cutting width direction can be easily removed.

Further, in the present invention, it is preferable that the movable scraping ring body is located on the outermost side in the cutting width direction in the plurality of scraping wheel bodies.

According to this feature configuration, since there is no other scraping wheel in the direction in which the movable scraping wheel is separated, the movable scraping wheel can be largely separated.

Further, in the present invention, the wheel frame that supports the movable scraping wheel, the locked state that fixes the position of the wheel frame in the state in which the movable scraping wheel is in the used state, and the wheel frame. A lock mechanism that can be switched to an unlocked state for releasing the position fixing is provided, and the movable scraping wheel body is configured to be separable by switching the lock mechanism to the unlocked state. Suitable.

According to this feature configuration, when performing a normal cutting operation, the movable scraping wheel can be stably held in the used state by switching the lock mechanism to the locked state. Then, when removing the clogged cut grain culm, the movable scraping wheel can be easily separated by switching the lock mechanism to the unlocked state.

Further, in the present invention, a weeding tool for weeding a planted culm and a weeding frame for supporting the weeding tool are provided, and the ring frame is supported by the weeding frame and the lock is provided. It is preferable that the mechanism is configured to connect the portion of the ring frame supported by the weed frame to the weed frame in the locked state.

According to this feature configuration, the portion of the ring frame supported by the weeding frame is connected to the weeding frame by the locking mechanism. As a result, the wheel frame can be firmly supported by the weeding frame.

Further, in the present invention, the stock transfer device has an endless rotating body and a plurality of rotating wheels around which the endless rotating body is wound, and the movable scraping ring body is the plurality of rotating wheels. A tension mechanism that is rotatably supported by the same rotating shaft as one of the rotating wheels and applies tension to the endless rotating body is provided, and the tension mechanism is in a tension applying state that applies tension to the endless rotating body. It is preferable that the device is configured to be switchable between the above and the tension release state in which the tension is released from the endless rotating body.

According to this feature configuration, when the tension mechanism is switched to the tension release state, the tension of the endless rotating body is loosened. As a result, when the movable scraping wheel body is separated, it is difficult to be restricted by the endless rotating body, and the movable scraping wheel body can be largely separated.

It is a left side view which shows a combine. It is a top view which shows the cutting part. It is a left side view which shows the lower part of a cutting part. It is a top view which shows the left stock transfer apparatus, the scraping packer, and the peripheral structure thereof. It is a top view which shows the movable scraping packer in the use state. It is a top view which shows the state which the tension mechanism was switched to the tension release state. It is a top view which shows the movable scraping packer in a separated state. It is a left side view which shows the lock mechanism.

A mode for carrying out the present invention will be described with reference to the drawings. In the following description, the direction of arrow F (see FIGS. 1 and 2) is "front of the aircraft", the direction of arrow B (see FIGS. 1 and 2) is "rear of the aircraft", and arrow L (see FIG. 2). The direction of (see) is "to the left of the aircraft", and the direction of the arrow R (see FIG. 2) is "to the right of the aircraft".

[Overall composition of combine harvester]
FIG. 1 shows a head-feeding combine. The combine is provided with a traveling machine 1. The traveling machine body 1 is provided with a crawler type traveling device 2 and a machine body frame 3 supported by the traveling device 2. In front of the traveling machine body 1, a cutting section 4 is provided which cuts the planted grain culms and transports the cut grain culms toward the rear of the machine body. A driving unit 5 is provided on the right side portion of the front portion of the traveling machine body 1. An engine E is provided below the driving unit 5.

Behind the cutting unit 4, a threshing device 6 for threshing the cut grain culm is provided. That is, the cutting unit 4 is provided in front of the threshing device 6. On the left side of the threshing device 6, a feed chain 7 for sandwiching and transporting the stock root of the harvested culm is provided. To the right of the threshing device 6, a grain storage tank 8 for storing the grains after the threshing process is provided. A grain discharge device 9 for discharging grains in the grain storage tank 8 is connected to the grain storage tank 8.

[Mowing section]
As shown in FIGS. 1 and 2, the cutting unit 4 cuts the planted grain culms having a plurality of rows (six rows in this embodiment), merges the cut grain culms, and conveys them to the threshing device 6. It is configured. The cutting unit 4 has a cutting work position (lowering position) for cutting the planted culm and a non-cutting position for not cutting the planted culm around the swing axis X1 extending along the left-right direction of the machine. It is configured to be swingable over the working position (elevation position). The harvesting unit 4 includes a plurality of weeding tools 10 (seven in this embodiment) for weeding the planted culms and a plurality of triggering devices (six in the present embodiment) for causing the planted culms. 11, a plurality of scraping belts 12 (six in this embodiment) for scraping the stock of the planted culm, a cutting blade device 13 for cutting the planted culm, and a stock of the harvested culm. A plurality of scraping packers (six in the present embodiment) (corresponding to the "scraping wheel" according to the present invention), a transport device 15 for transporting the harvested culm toward the rear of the machine, and these. A cutting frame 16 and a support for the culm 16 are provided.

According to such a configuration, the planted culm in the field is weeded by the weeding tool 10, and the planted culm planted by the weeding tool 10 is caused by the device 11. Then, the planted grain culm caused by the raising device 11 is scraped by the scraping belt 12, and the planted grain culm scraped by the scraping belt 12 is cut by the cutting blade device 13. Then, the cut grain culms cut by the cutting blade device 13 are scraped by the scraping packer 14, and the harvested grain culms scraped by the scraping packer 14 are transported toward the rear of the machine body by the transport device 15. Become.

[Transport device]
As shown in FIG. 2, the transfer device 15 includes a left transfer device 17, a middle transfer device 18, a right transfer device 19, a handling depth transfer device 20, and a supply transfer device 21. ..

The left transport device 17 is configured to transport the two left-sided cut grain culms. The left transfer device 17 is provided with a left stock transfer device 22 (corresponding to the “stock source transfer device” according to the present invention) and a left tip transfer device 23.

The left stock source transport device 22 is configured to sandwich and transport the stock roots of the two left-row cut grain culms. The left sprocket transfer device 22 is provided with a left sprocket chain 22A with protrusions (corresponding to the "endless rotating body" according to the present invention) and a left sprocket chain 22A facing the left sprocket chain 22A. The left stock source guide 22B, the drive sprocket 22C around which the left stock source chain 22A is wound, the driven sprocket 22D and the rollers 22E, 22F, 22G (each corresponding to the "rotary wheel body" according to the present invention) and the like. Is provided. The stock yuan of the harvested grain culm is sandwiched and transported by the left stock yuan chain 22A and the left stock yuan guide 22B.

The left tip transport device 23 is configured to lock and transport the tips of the two left-sided cut grain culms. The left tip transfer device 23 is arranged above the left stock transfer device 22. The left tip transfer device 23 includes a left tip chain 23A, a plurality of claws 23B attached to the left tip chain 23A and acting to lock the tips of the cut grain culm, a drive sprocket 23C around which the left tip chain 23A is wound, and the like. , Is provided.

In the left tip transfer device 23, the claw 23B is in an upright position with respect to the left tip chain 23A in the portion of the left tip chain 23A on the transport path R1 side for transporting the cut grain culm, and the left tip chain 23A is cut. In the portion on the return path R2 side that does not transport the grain culm, the claw 23B is configured to be in a lying position with respect to the left tip chain 23A.

The medium transport device 18 is configured to transport the two central-side cut grain culms. The middle transfer device 18 is provided with a middle stock transfer device 24 and a middle tip transfer device 25.

The middle stock source transport device 24 is configured to sandwich and transport the stock roots of the two cutting grain culms on the central side. The middle stock yuan transport device 24 is provided with a middle stock yuan chain 24A with protrusions, a middle stock yuan guide 24B provided facing the middle stock yuan chain 24A and guiding the stock yuan of the harvested culm, and a middle stock yuan. A drive sprocket 24C or the like around which the chain 24A is wound is provided. The stock yuan of the harvested grain culm will be sandwiched and transported by the middle stock yuan chain 24A and the middle stock yuan guide 24B.

The middle tip transport device 25 is configured to lock and transport the tips of the two cutting grain culms on the central side. The middle tip transfer device 25 is arranged above the middle stock transfer device 24. The middle tip transfer device 25 includes a middle tip chain 25A, a plurality of claws 25B attached to the middle tip chain 25A and acting to lock the tips of the cut grain culm, a drive sprocket 25C around which the middle tip chain 25A is wound, and the like. , Is provided.

In the middle tip transfer device 25, the claw 25B is in an upright position with respect to the middle tip chain 25A in the portion of the middle tip chain 25A on the transport path R1 side for transporting the cut grain culm, and the middle tip chain 25A is cut. In the portion on the return path R2 side that does not transport the grain culm, the claw 25B is configured to be in a lying position with respect to the middle tip chain 25A.

The right transport device 19 is configured to transport the two right-sided cut grain culms. The right transfer device 19 is provided with a right stock transfer device 26 and a right tip transfer device 27.

The right stock origin transporting device 26 is configured to sandwich and transport the stock origin of the right two-row cut grain culm. The right stock source transfer device 26 is provided with a right stock source chain 26A with protrusions and a right stock source guide 26B provided facing the right stock source chain 26A and guiding the stock source of the harvested grain culm. ing. The stock yuan of the harvested grain culm will be sandwiched and transported by the right stock yuan chain 26A and the right stock yuan guide 26B.

The right tip transport device 27 is configured to lock and transport the tips of the two right-sided cut grain culms. The right tip transfer device 27 is arranged above the right stock transfer device 26. The right tip transfer device 27 includes a right tip chain 27A, a plurality of claws 27B attached to the right tip chain 27A and acting to lock the tips of the cut grain culm, a drive sprocket 27C around which the right tip chain 27A is wound, and the like. , Is provided.

In the right tip transfer device 27, the claw 27B is in an upright position with respect to the right tip chain 27A in the portion of the right tip chain 27A on the transport path R1 side for transporting the cut grain culm, and the right tip chain 27A is cut. In the portion on the return path R2 side that does not transport the grain culm, the claw 27B is configured to be in a lying position with respect to the right tip chain 27A.

The handling depth transfer device 20 is configured to inherit and transfer the stock source of the harvested grain culm from the left stock source transfer device 22, the middle stock source transfer device 24, and the right stock source transfer device 26. The handling depth transfer device 20 is configured to be able to swing up and down at the front fulcrum. The handling depth is adjusted by the handling depth transfer device 20 swinging up and down at the front fulcrum.

The handling depth transfer device 20 is provided with a handling depth chain 20A with protrusions and a handling depth guide 20B provided facing the handling depth chain 20A and guiding the stock origin of the harvested culm. ing. The root of the cut grain culm is sandwiched and transported by the handling depth chain 20A and the handling depth guide 20B.

The supply transport device 21 is configured to inherit the stock of the cut grain culm from the handling depth transport device 20 and carry it by sandwiching it. The supply transport device 21 is arranged on the upstream side in the transport direction with respect to the feed chain 7. The supply transfer device 21 is arranged below the rear portion of the right tip transfer device 27. That is, the right tip transfer device 27 is arranged above the supply transfer device 21.

The supply transport device 21 includes a supply chain 21A with protrusions, a supply guide 21B provided facing the supply chain 21A to guide the stock of the harvested culm, a drive sprocket 21C on which the supply chain 21A is wound, and the like. , Is provided. The stock of the cut grain culm is sandwiched and transported by the supply chain 21A and the supply guide 21B.

According to such a configuration, the tip of the left two-row cut grain culm locked and transported by the left tip transport device 23, the tip of the central two-row cut grain culm locked and transported by the middle tip transport device 25, and The tips of the two right-row cut culms that were locked and transported by the right tip transfer device 27 merged, and the tips of the merged cut grain culms (the tips of the six-row cut culms) were locked and transported by the right tip transport device 27. It will be supplied to the handling room (not shown) of the grain removal device 6.

In addition, the stock origin of the left two-row harvested grain culm sandwiched and transported by the left stock origin transport device 22, the stock origin of the central two-row harvested grain culm sandwiched and transported by the middle stock origin transport device 24, and the right stock origin transport. The stocks of the two right-sided harvested culms that were sandwiched and transported by the device 26 merged, and the stockholders of the merged harvested culms (the stockholders of the six-row harvested culms) handled the depth transfer device 20 and the supply and transport device. It is sandwiched and transported by the 21 and finally supplied to the feed chain 7 by the supply and transport device 21.

[Mowing frame]
As shown in FIGS. 3 and 4, the cutting frame 16 includes a weeding frame 28, a cutting shaft case 29, a cutting drive case 30, and a raising drive shaft case 31.

A plurality (seven in this embodiment) of the weeding frame 28 are provided corresponding to each of the plurality (seven in the present embodiment) of the weeding tools 10 so as to support the weeding tool 10. There is. The cutting shaft case 29 is configured to be swingable around the swing axis X1 (see FIG. 1). The cutting drive case 30 is connected to the front end of the cutting shaft case 29 in a state of extending along the left-right direction of the machine body. The raising drive shaft case 31 is erected at the left end of the cutting drive case 30. Inside the cutting shaft case 29, the cutting drive case 30, and the raising drive shaft case 31, shafts (not shown) for transmitting power to each part of the cutting portion 4 are provided, respectively.

[Tension mechanism]
As shown in FIG. 4, a tension mechanism 32 for applying tension to the left stock source chain 22A is provided. The tension mechanism 32 switches between a tension applying state (see FIGS. 4 and 5) in which tension is applied to the left stock source chain 22A and a tension release state (see FIG. 6) in which tension is released from the left stock source chain 22A. It is configured to be possible.

The tension mechanism 32 is configured to swing around the same swing axis Z1 as the rotation axis of the driven sprocket 22D, and the tension roller 33 in contact with the left stock chain 22A, so that the tension roller 33 can rotate. The tension arm 34 that supports the tension arm 34, the spring 35 that swings and urges the tension arm 34 in the direction in which the tension roller 33 contacts the left sprocket chain 22A (tension applying direction) around the swing axis Z1, and the tension arm 34. An operation lever 36 for swinging operation is provided.

The tension arm 34 is provided with a first arm portion 34A to which the tension roller 33 is attached and a second arm portion 34B to which the spring 35 is attached. The end of the spring 35 on the second arm portion 34B side is connected to the second arm portion 34B. The end of the spring 35 on the opposite side of the second arm portion 34B is connected to the rod 37.

The rod 37 is attached to the stay 38 so as to be repositionable. The stay 38 is swingably supported by the operating lever 36. By changing the position of the rod 37 with respect to the stay 38, the urging force of the spring 35 can be adjusted.

The operating lever 36 is supported by the stay 39 so as to be swingable around the swing axis Z2. The stay 39 is fixed to the raising drive shaft case 31 by bolts 40.

According to such a configuration, as shown in FIG. 5, when the operation lever 36 is swung around the swing axis Z2 in the arrow direction, the tension arm 34 is tensioned around the swing axis Z1 by the spring 35. It will be oscillated in the direction. As a result, the tension roller 33 comes into contact with the left stock chain 22A, and tension is applied to the left stock chain 22A. That is, the tension mechanism 32 is in a tension-applied state.

Here, in the tension-applied state, the operating lever 36 exceeds the dead center DP1 and is in contact with the corner portion of the stay 39. As a result, the operating lever 36 does not swing in the direction of the arrow any more around the swing axis Z2.

Then, as shown in FIG. 6, when the operation lever 36 is swung around the swing axis Z2 in the direction of the arrow, the urging force of the spring 35 does not act on the tension arm 34. As a result, the tension roller 33 is separated from the left stock chain 22A, and the tension applied to the left stock chain 22A is released. That is, the tension mechanism 32 is in the tension release state.

[Scratching packer]
As shown in FIG. 2, a plurality of (six in this embodiment) scraping packers 14 arranged in the cutting width direction are the left stock transfer device 22, the middle stock transfer device 24, and the right stock transfer device 26. It is configured to scrape the root of the harvested grain culm at the bottom.

The right scraping packer unit U1 is composed of two scraping packers 14 on the right side adjacent to each other in the cutting width direction among the six scraping packers 14. The pair of scraping packers 14 in the right scraping packer unit U1 are configured to scrape the stock of the right two-row cut grain culm below the right stock transfer device 26.

The right scraping packer 14 in the right scraping packer unit U1 is configured to transmit the power of the right stock transfer device 26. The left scrap packer 14 in the right scrap packer unit U1 is configured to mesh with and follow the right scrap pack 14 in the right scrap packer unit U1.

Of the six scraping packers 14, the two scraping packers 14 on the center side adjacent to each other in the cutting width direction constitute the middle scraping packer unit U2. The pair of scraping packers 14 in the middle scraping packer unit U2 are configured to scrape the stock roots of the two central cut grain culms below the middle stock source transport device 24.

The scraping packer 14 on the left side of the middle scraping packer unit U2 is configured to transmit the power of the middle stock transfer device 24. The right-side scraping packer 14 in the middle scraping packer unit U2 is configured to mesh with and follow the left-side scraping packer 14 in the middle scraping packer unit U2.

Of the six scraping packers 14, the two scraping packers 14 on the left side adjacent to each other in the cutting width direction constitute the left scraping packer unit U3. The pair of scraping packers 14 in the left scraping packer unit U3 are configured to scrape the stock of the left two-row cut grain culm below the left stock transfer device 22.

The left scraping packer 14 in the left scraping packer unit U3 is configured to transmit the power of the left stock transfer device 22. The right side scraping packer 14 in the left scraping packer unit U3 is configured to mesh with and follow the left scraping packer 14 in the left scraping packer unit U3.

In the left scraping packer unit U3, the left scraping packer 14 is separated from the usage state (see FIGS. 4 and 5) in which the pair of scraping packers 14 approaches the right scraping packer 14 in the cutting width direction. It is configured by a movable scraping packer M (corresponding to the "movable scraping wheel" according to the present invention) that is possible (in the present embodiment, it can be separated to the left side. See FIG. 7).

The movable scraping packer M is located on the leftmost side of the six scraping packers 14. That is, the movable scraping packer M is located on the outermost side in the cutting width direction in the six scraping packers 14. The movable scraping packer M is rotatably supported on the same rotation shaft S as the driven sprocket 22D. That is, the rotation axis of the movable scraping packer M is the same rotation axis (swing axis Z1) as the rotation axis of the driven sprocket 22D.

[Packer frame]
As shown in FIG. 5, a packer frame 41 (corresponding to the “wheel frame” according to the present invention) that supports the movable scraping packer M is provided. The packer frame 41 is supported by the grass frame 28 (the leftmost grass frame 28) located on the leftmost side in the cutting width direction among the seven grass frames 28. The packer frame 41 is raised via the stay 39 and is supported by the drive shaft case 31.

The packer frame 41 is provided with a pipe frame portion 42. The pipe frame portion 42 is provided over the leftmost outermost weed frame 28 and the stay 39. At the front end of the pipe frame portion 42, a front mounting portion 43 to be attached to the leftmost outer weed frame 28 is provided. A rear mounting portion 44 to be attached to the stay 39 is provided at the rear end portion of the pipe frame portion 42.

The leftmost weed frame 28 is provided with a mounting portion 45 to which the front mounting portion 43 is mounted. The front mounting portion 43 is fixed to the mounting portion 45 by bolts 46.

The rear mounting portion 44 is fixed to the stay 39 by the left and right bolts 47. In the portion of the stay 39 corresponding to the bolt 47 on the right side, a long hole 39a into which the bolt 47 on the right side is inserted is formed. The elongated hole 39a is formed in a shape along an arc centered on the axis (swing axis) Z3 of the bolt 47 on the left side. That is, the packer frame 41 is configured so that the bolt 47 on the right side can swing around the swing axis Z3 while moving along the elongated hole 39a.

[Lock mechanism]
As shown in FIG. 8, a lock mechanism 48 that can switch between a locked state in which the packer frame 41 is fixed in a movable scraping state and a state in which the packer M is in a usable state and an unlocked state in which the position of the packer frame 41 is released is released. It is provided. The movable scraping packer M is configured to be separable by switching the lock mechanism 48 to the unlocked state.

The lock mechanism 48 is configured over the packer frame 41 and the leftmost outermost weed frame 28. Specifically, the lock mechanism 48 includes a front mounting portion 43 and a mounting portion 45. That is, in the locked state, the lock mechanism 48 has the leftmost outermost weed frame 28 (mounting portion 45) of the packer frame 41 supported by the leftmost outermost weed frame 28 (front mounting portion 43). It is configured to connect to. The lock mechanism 48 includes a pin 49 and a hook 50 that can be hooked on the pin 49.

The pin 49 is provided on the front mounting portion 43 in a state of projecting from the left side surface of the front mounting portion 43 toward the left side. The pin 49 is composed of a pin with a head.

The hook 50 is located on the left side with respect to the mounting portion 45, and is supported by the mounting portion 45 so as to be swingable around the swing axis X2 extending along the left-right direction of the machine body. The hook 50 is provided with a handle 51 for swinging the hook 50. The hook 50 is fixed to the front mounting portion 43 by a bolt 52 in a state of being hooked on the pin 49.

According to such a configuration, as shown in FIG. 8, when the hook 50 is swung by the handle 51 and the hook 50 is hooked on the pin 49 (in FIG. 8, the hook 50 drawn by the alternate long and short dash line is used. (See), the lock mechanism 48 is locked. In this way, the packer frame 41 is fixed in position by the lock mechanism 48 so that the movable scraping packer M is in a usable state.

Then, when the hook 50 is swung by the handle 51 with the bolt 52 removed to release the hook 50 from being hooked on the pin 49 (see the hook 50 drawn by a solid line in FIG. 8), the lock mechanism 48 is used. Is in the unlocked state. In this way, the position fixing of the packer frame 41 by the lock mechanism 48 is released.

[Switching to the separated state of the movable scraping packer]
As shown in FIG. 6, the position fixing of the packer frame 41 by the lock mechanism 48 is released, the fixing of the front mounting portion 43 by the bolt 46 is released, and the tension mechanism 32 is switched to the tension release state.

Then, as shown in FIG. 7, when the packer frame 41 is swung in the direction of the arrow around the swing axis Z3, the movable scraping packer M moves to the right scraping packer 14 as the packer frame 41 swings. It will be separated from the used state to the left side. At that time, the driven sprocket 22D also moves to the left side together with the movable scraping packer M, and the scraping belt 12 (the leftmost scraping belt 12) located on the leftmost side in the cutting width direction among the six scraping belts 12 The belt 12) will also move to the left.

[Another Embodiment]
(1) In the above embodiment, in the left scraping packer unit U3, the left scraping packer 14 is configured by the movable scraping packer M. However, in the left scraping packer unit U3, the right scraping packer 14 may be configured by the movable scraping packer M. Alternatively, in the left scraping packer unit U3, both scraping packers 14 may be configured by the movable scraping packer M. Alternatively, in the right scraping packer unit U1 or the middle scraping packer unit U2, at least one scraping packer 14 may be configured by the movable scraping packer M.

(2) In the above embodiment, the movable scraping packer M is located on the leftmost side of the plurality of scraping packers 14. However, the movable scraping packer M may be located on the outermost right side of the plurality of scraping packers 14. Alternatively, the movable scraping packer M may be located on the center side in the cutting width direction in the plurality of scraping packers 14.

(3) In the above embodiment, in the locked state, in the locked state, the portion (front mounting portion 43) of the packer frame 41 supported by the leftmost outer weed frame 28 is the leftmost outer weed frame. It is configured to be connected to 28 (mounting portion 45). However, the lock mechanism 48 may be configured to connect a portion of the packer frame 41 other than the front mounting portion 43 to the leftmost outer weed frame 28 in the locked state.

(4) In the above embodiment, the number of scraping packers 14 is six. However, the number of scraping packers 14 is not limited to six if there are a plurality of them.

(5) In the above embodiment, the cutting section 4 is configured to cut six rows. However, the cutting section 4 is not limited to six-row cutting.

The present invention can be used for head-feeding combine harvesters.

10-minute weed tool 11 Raising device 13 Cutting blade device 14 Scraping packer (Scraping wheel)
22 Left stock transfer device (stock transfer device)
22A Left stock original chain (endless rotating body)
22C drive sprocket (rotary wheel)
22D driven sprocket (rotating wheel)
22E roller (rotary wheel)
22F roller (rotary wheel)
22G roller (rotary wheel)
28 Weeding frame 32 Tension mechanism 41 Packer frame (wheel frame)
43 Front mounting part (the part of the wheel frame supported by the weed frame)
48 Lock mechanism M Movable scraping packer (movable scraping wheel)
S rotation axis

Claims (5)

The triggering device that causes the planted culm, and
A cutting blade device that cuts the planted culm caused by the raising device, and
A stock source transporting device that sandwiches and transports the stock root of the cut grain culm cut by the cutting blade device, and
It is configured to scrape the stock root of the cut grain culm below the stock root transport device, and includes a plurality of scraping rings arranged in the cutting width direction.
In a pair of scraping rings adjacent to each other in the cutting width direction among the plurality of scraping rings, at least one of the scraping rings has the pair of scraping rings with respect to the other scraping ring. A head-feeding combine that is composed of a movable scraping wheel that can be separated from the approaching state of use in the cutting width direction. The self-removing combine according to claim 1, wherein the movable scraping ring is located on the outermost side in the cutting width direction in the plurality of scraping rings. A wheel frame that supports the movable scraping wheel and
It is provided with a lock mechanism that can switch between a locked state in which the wheel body frame is fixed in the position where the movable scraping wheel body is in the used state and an unlocked state in which the position fixing of the wheel body frame is released.
The self-removing combine according to claim 1 or 2, wherein the movable scraping wheel is configured to be separable by switching the lock mechanism to the unlocked state. Weeding tools for weeding planted culms,
With a weeding frame that supports the weeding tool,
The ring frame is supported by the weed frame and is supported by the weed frame.
The self-removing combine according to claim 3, wherein the locking mechanism is configured to connect a portion of the ring frame supported by the weed frame to the weed frame in the locked state. .. The stock transfer device has an endless rotating body and a plurality of rotating wheels around which the endless rotating body is wound.
The movable scraping wheel is rotatably supported on the same rotation axis as one of the plurality of rotating wheels.
A tension mechanism for applying tension to the endless rotating body is provided.
One of claims 1 to 4, wherein the tension mechanism is configured to be switchable between a tension applying state for applying tension to the endless rotating body and a tension releasing state for releasing tension applied to the endless rotating body. The self-removing combine described in the section.

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