JP2022100108A - Combine-harvester - Google Patents

Abstract

To address to the desire to hold an easy-to-view state of direction indicator lamps even when the number of ridges to be reaped is increased.SOLUTION: A combine-harvester comprises a reaping part 2 at a front part of a harvester body, an operation part 5 located rearward the reaping part 2, a cabin 8 covering the periphery of the operation part 5, and left/right direction indicator lamps 62R and 62L located at front parts of the harvester body. The reaping part 2 is liftably/lowerably configured between a reaping work position and a retraction position located upward. One direction indicator lamp 62R is provided at a right side portion of the front part of the cabin 8, the other direction indicator lamp 62L is provided at a left side portion out of the front part of the harvester body, and the one direction indicator lamp 62R is provided at a position higher than the reaping part 2 in the maximum ascent position.SELECTED DRAWING: Figure 1

Description

The present invention relates to a combine having a harvesting unit located at the front portion of the machine body to mow planted culms and a driving unit located behind the cutting unit.

Since the combine travels on the road, it is necessary to equip it with a turn signal. When a direction indicator is provided in a combine, conventionally, there is a harvester having a small width in the left-right direction and provided in a state of being located laterally outside the operation panel of the driving unit (for example, Patent Document 1). reference).

Japanese Unexamined Patent Publication No. 2009-240174

In the above-mentioned conventional configuration, since the width of the cutting portion in the left-right direction is small, there is no problem even if the cutting portion is raised or lowered. If the width of the directional indicator is large, the turn signal may not be visible from the front when the cutting section is moved up and down.

Therefore, it has been requested that the turn signal can be maintained in an easy-to-see state even when the number of cutting rows is increased.

The characteristic configuration of the combine according to the present invention is a cutting section located at the front portion of the machine body to mow the planted grain, a driving section located behind the cutting section, a cabin covering the periphery of the driving section, and the machine body. The left and right direction indicators located at the front are provided, and the cutting section is configured to be able to move up and down over a working position for cutting and a retracted position located above, and the left and right direction indicators are among them. One is provided on one side of the front part of the cabin in the left-right direction, and the other is provided on the opposite side of the front part of the fuselage in the left-right direction. Is also located at a high position.

According to the present invention, the turn signal is provided at a high position on one side in the left-right direction in the front portion of the cabin by utilizing the cabin covering the driving portion. Since this turn signal is located higher than the cutting section at the maximum ascending position, for example, even if the position in the left-right direction overlaps with the cutting section in the front-back direction, the cutting section is moved up and down. Regardless, it can be seen from the front.

As a result, even when the cutting section increases the number of cutting rows and the width in the left-right direction becomes large, the direction indicator can be maintained in an easy-to-see state.

In the present invention, a headlight is provided on one side of the cutting portion in the left-right direction, and the one-sided turn signal is positioned at substantially the same position as the headlight in the left-right direction in front view. Suitable.

According to this configuration, since the position of the direction indicator and the headlight in the left-right direction are substantially the same, the electrical wiring can be grouped at the same position, and the wiring process can be easily performed.
Is easy to do.

In the present invention, it is preferable that the threshing device is provided at the rear portion of the machine body, and the one direction indicator is provided at the same height as the upper end portion of the threshing device.

According to this configuration, since it is located at the same high position as the upper end of the threshing device, it is easy to check the turn signal even from a distant place.

In the present invention, it is preferable that a rear-view mirror is provided on the lateral outer side of the cabin, and the one direction indicator is provided below the lower end of the rear-view mirror.

According to this configuration, when the driver looks at the rear-view mirror, the direction indicator does not get in the way and it is easy to check the rear.

In the present invention, it is preferable that the one direction indicator is supported by the front pillar of the cabin.

According to this configuration, the turn signal can be firmly supported by the front pillar having high rigidity to support the entire cabin.

In the present invention, an operation unit having an operating tool for switching the operating state of the direction indicator is provided at one side of the front portion inside the cabin in the left-right direction, and the one direction indicator is the same as the operation unit. It is preferable that they are provided at the same height.

According to this configuration, the operation tool is provided at the same high position as the direction indicator, and it is easy for the driver to confirm the operating state of the direction indicator accompanying the operation of the operation tool.

In the present invention, it is preferable that the one direction indicator is provided at a height corresponding to the lower end portion of the left-right one-side end portion of the windshield of the cabin in the front view.

According to this configuration, it is easy for the driver inside the cabin to visually confirm the operating state of the turn signal through the windshield.

In the present invention, the left-right one-sided end of the cutting portion is located at the same position as the left-right one-sided end of the cabin, or is located on the left-right outer side of the cabin left-right one-sided end. It is preferable to do so.

According to this configuration, when the cutting portion is raised, the left-right one-sided end of the cutting portion overlaps with the left-right one-sided end of the cabin. Even with such a configuration, the operating state of the turn signal can be confirmed from the front side of the machine body.

In the present invention, it is preferable that the other direction indicator is provided at the other side of the cutting portion in the left-right direction.

According to this configuration, the other turn signal can be firmly supported by utilizing the support structure of the cutting portion.

In the present invention, it is preferable that the one direction indicator is at a higher position than the other direction indicator even when the cutting portion is located at the maximum rising position.

According to this configuration, the other turn signal moves up and down as the cutting section moves up and down, but even if it rises to the maximum rising position, one turn signal is higher than the other turn signal. Because it is located at, it is easy to check the direction indicators on both the left and right sides even from a distant position.

It is a side view of a combine. It is a front view of a combine. It is a side view which shows the support structure of a raising device. It is a vertical sectional side view of the upper cover arrangement part. It is a perspective view which shows the attachment state of the 2nd member. It is a cross-sectional plan view which shows the mounting state of the 2nd member. It is a perspective view which shows the attachment state of the 1st member. It is a front view of the left end part of the top cover. It is a vertical sectional side view of the upper cover arrangement part of another embodiment. It is a vertical sectional side view of the upper cover arrangement part of another embodiment.

An embodiment of the present invention will be described with reference to the drawings. In the following description, the direction of the arrow "F" is the "front side of the aircraft", the direction of the arrow "B" is the "rear side of the aircraft" (see FIG. 1), and the direction of the arrow "L" is the "left side of the aircraft". The direction of the arrow "R" is "the right side of the aircraft" (see Fig. 2).

〔overall structure〕
As shown in FIG. 1, the combine according to the present invention includes a traveling machine body 1 and a cutting section 2 capable of cutting 7 planted culms. The cutting portion 2 is connected to the traveling machine body 1 so as to be able to swing up and down around the horizontal axis P1, and is provided so as to be driven and raised and lowered by a hydraulic cylinder 3 for raising and lowering.

The traveling machine body 1 is provided with left and right crawler traveling devices 4, and is provided with a driving unit 5 on the right side (one side in the left-right direction) of the front portion of the machine body. Behind the driving unit 5, a threshing device 6 for threshing the grain culms cut by the cutting unit 2 and a grain tank 7 for storing the grains obtained by the threshing process are arranged side by side in the machine body. It is equipped with. The driving unit 5 is covered with a cabin 8. Although not shown, the threshing device 6 handles and processes the tip side in the handling chamber while sandwiching and transporting the stock root of the harvested culm transported from the harvesting unit 2 by the threshing feed chain 9. Grains and dust are sorted by the sorting section provided at the bottom. The grains are stored in the grain tank 7, and the dust is discharged to the outside of the machine. It is provided with a grain discharging device 10 capable of discharging grains stored in the grain tank 7 to the outside, and a shredding device 11 for shredding the discharged straw after the threshing process and then discharging it to the outside of the machine. ..

As shown in FIGS. 1 and 2, the cutting section 2 is provided at intervals in the left-right direction, and is a weeding guide for introducing the planted culms of each row to the seven culm introduction routes. Multiple (8) weeding tools 12 and multiple (7) raisings that are provided in a state of being lined up in the left-right direction corresponding to each of all grain culm introduction routes and cause planting culm. The device 13 is provided with a varican-type cutting blade 14 for cutting the root of the raised planted culm, and a transport device 15 for merging the cut culm in the cutting width direction and transporting the cut culm to the rear. There is.

The cutting section 2 is provided with a cutting frame 20 that supports the entire cutting section 2. The cutting frame 20 includes a main frame 22 that extends from the machine frame 21 to the front of the machine and is supported so that the rear end can swing up and down, a horizontal frame 23 that extends to the front end of the main frame 22 in the left-right direction, and a horizontal frame. It is provided with a raising transmission case 24 or the like extending upward from one end of the traveling machine.

The hydraulic cylinder 3 is connected over the main frame 22 and the machine frame 21, and the cutting unit 2 is swung up and down by the hydraulic cylinder 3 to move up and down the working position for cutting (state shown by a solid line in FIG. 1) and above. It is configured to be able to move up and down over the retracted position (state shown by virtual lines in FIGS. 1 and 2) as the maximum ascending position located at.

The cutting unit 2 is provided with left and right side covers 25 that cover the lateral sides of the plurality of raising devices 13 in the left-right direction. Above the left and right side covers 25, left and right headlight devices 26 and left and right headlight covers 27 that cover the headlight devices 26 are provided.

The headlight cover 27 covers the periphery of the headlight device 26 provided on the upper part of the left and right side portions of the cutting portion 2 and the upper side portion of the lateral sides of the plurality of raising devices 13 in the left-right direction. It is configured as follows. The left and right side covers 25 are configured to cover the lower portion of the lateral sides of the plurality of raising devices 13 in the left-right direction.

[Raising device]
The raising device 13 is provided in an upright posture in which the lower end side is located on the front side of the machine body and the upper end side is located on the rear side of the machine body in a backward tilted state. As shown in FIG. 2, the raising device 13 extends endlessly over the drive wheel 29 and the tension wheel 30 arranged in the upper part of the raising case 28 and the guide wheel 31 arranged in the lower part of the case. The moving chain 32 is wound and stretched. A large number of raising claws 33 are undulated and supported at a predetermined pitch on the endless rotating chain 32.

In the raising device 13, the path that moves upward among the moving paths on both the left and right sides of the endless rotating chain 32 is the raising path Q1, and the opposite side is the return path Q2. In the raising path qQ1, a guide plate for raising and guiding the raising claw 33 to a position where the endless rotating chain 32 passes is provided. In the raising path Q1, the raising device 13 moves up while the raising claw 33 protruding laterally moves up while combing the grain culm, and when it reaches the end of the raising path Q1, it is separated from the grain culm and raised. It is housed inside the culm case 28, descends the return path, raises it, and returns to the action path side.

A pulling drive shaft 34 that extends along the left-right direction and transmits power to each of the plurality of raising devices 13 while being located above the plurality of raising devices 13 is provided. Although not shown, the transmission structure is not shown, but the power from the machine body side is the front-rear transmission shaft provided inside the main frame 22, the lateral transmission shaft provided inside the horizontal frame 23, and the raised transmission case 24. It is raised and transmitted to the drive shaft 34 via the vertical transmission shaft provided inside the.

A plurality of drive transmission units 35 for branching and transmitting power from the raising drive shaft 34 to each of the plurality of raising devices 13 are provided at intervals in the left-right direction. As shown in FIG. 4, the drive transmission unit 35 includes an upper bevel gear mechanism 37, a vertical transmission shaft 38 extending along the longitudinal direction of the case, and a lower bevel gear mechanism 39 inside the vertically long drive case 36. , And a front-rear transmission shaft 40 are built in, and are configured to transmit power from the raising drive shaft 34 to the driving wheel 29 of the raising device 13.

As shown in FIG. 3, a support arm 41 made of a pipe bent in a chevron shape from the base end boss portion of the cutting frame 20 is raised toward the front and extends to an upper portion of the device 13. A support frame 42 extending in the left-right direction is connected to the front end of the support arm 41 along the upper side of the plurality of raising devices 13. The support frame 42 is formed by bending a plate material, and the front end of the support arm 41 is connected to the support frame 42.

A plurality of support brackets 43 are bolted to the support frame 42 at intervals in the left-right direction, and a drive case 36 is fitted and supported on each support bracket 43 so as to be swingable up and down around the horizontal axis X1. The drive shaft 34 is raised and supported through the upper part of the drive case 36. The drive case 36 is supported so as to be able to swing up and down around the axis X1 of the raised drive shaft 34.

The raising device 13 is connected to the drive case 36 in a state where it can swing integrally. As shown in FIGS. The posture can be switched to an open posture (indicated by a virtual line in FIG. 4) that swings upward to open the rear space. An air damper 44 for holding the position in the open posture is provided.

As shown in FIGS. A wrapping prevention cover 45 is provided so as to cover the side. The left and right sides of the wrapping prevention cover 45 are bolted to the support bracket 43.

[Top cover]
As shown in FIGS. 2, 3 and 4, an upper cover 46 is provided to cover the front side of the raising drive shaft 34. The upper cover 46 is provided so as to extend left and right from the leftmost raising device 13 to the rightmost raising device 13. The upper cover 46 is made of a resin material, and covers an open state in which the front side of the raised drive shaft 34 is covered and an open state in which the front side of the raised drive shaft 34 is opened. It is supported by the device 13 by raising it so that it can swing up and down around it.

The upper cover 46 is formed with an upward recessed portion 47 that is recessed upward at a position corresponding to the upper side of the raising path Q1 of each of the plurality of raising devices 13. Therefore, it is easy to prevent the upper part of the planted culm caused by the raising device 13 from interfering with the upper cover 46, resulting in poor transportation of the culm.

The upper portion 46A of the upper cover 46 is provided in a state of being stepped toward the front side with respect to the front surface 13a of the raising device 13, and the lower portion of the upper cover 46 below the raising drive shaft 34. A proximity portion 48 that raises the side portion 46B and approaches the device 13 is provided. As shown in FIGS. There is.

A proximity portion 48 is provided at a portion corresponding to the upper side of the return path Q2 of each of the plurality of raising devices 13 in the lower portion 46B of the upper cover 46. The portion of the upper cover 46 corresponding to the upper side of the return path Q2 is wide in the vertical direction and extends below the upper end position of the raising device 13. A proximity portion 48 is provided in the middle of the wide extension portion in the vertical direction.

The proximity portion 48 is located above the upper end position of the raising device 13. That is, a backward curved surface 49 is formed which is recessed above the upper end position of the raising device 13 so as to approach the raising device 13. As a result, even if the tip side of the planted culm caused by the raising device 13 leans on the corresponding portion above the return path Q2, it interferes with the upper cover 46 and the culm is poorly transported. Easy to avoid happening.

As shown in FIG. 8, of the left-right inward parts of the headlight cover 27, the part adjacent to the lower part 46b of the upper cover 46 is a laterally retired part that retires outward in the left-right direction in front view. 50 is provided. The left-right outer end portion of the lower side portion 46b of the upper cover 46 is provided with an overhanging portion 51 projecting outward in the left-right direction so as to enter the laterally retracted portion 50 of the headlight cover 27. With such a configuration, the gap between the headlight cover 27 and the upper cover 46 becomes small, the grain culm does not enter, and it is easy to avoid the occurrence of poor transportation of the grain culm.

[Position holding mechanism]
A position holding mechanism 52 for holding the position of the upper cover 46 in the closed state is provided. As shown in FIG. 2, the position holding mechanism 52 is provided at a position corresponding to each of a plurality of locations on the upper cover 46 where the upward recessed portion 47 is formed in the front view. The position holding mechanism 52 holds the upper cover 46 in a position by attracting the first member 53 provided on the upper cover 46 side and the second member 54 provided on the raising drive shaft 34 side by a magnetic force. It is configured in. That is, the iron material and the magnet are attracted by a magnetic force. The first member 53 is made of an iron material, and the second member 54 is made of a permanent magnet.

As shown in FIGS. 4 and 7, the back surface of the upper cover 46 is provided with a reinforcing rib 55 extending in the left-right direction. Reinforcing ribs 55 are formed at two locations above and below the back surface of the upper cover 46 in a state of being integrally molded with the upper cover 46. The reinforcing rib 55 is provided with a locking portion 56 for locking and holding the first member 53.

The locking portion 56 is provided with an extending portion extending downward from the upper reinforcing rib 55, and the first member 53 is locked and held in a recessed portion between the extending portion and the upper cover 46. An extension portion extending upward from the lower reinforcing rib 55 is provided, and the first member 53 is locked and held in a recessed portion between the extension portion and the upper cover 46. It is configured as follows.

The first member 53 is formed by bending an iron plate into a shape that allows it to easily enter the upper and lower locking portions 56. The upper and lower insertion recesses 58 and 60 are configured to be sandwiched and held by elastic deformation while the first member 53 is inserted.

When viewed from the front, the first member 53 is located at a position corresponding to each of the plurality of locations where the upward recessed portion 47 is formed in the upper cover 46, that is, the left and right of the adjacent drive transmission portions 35 among the plurality of drive transmission portions 35. It is provided in the position corresponding to the middle part. Further, the first member 53 is provided at a position facing the raised drive shaft 34 in a side view.

The second member 54 is composed of a permanent magnet and is provided at a position facing the first member 53, that is, a position corresponding to the left and right intermediate portions of the adjacent drive transmission portions 35 among the plurality of drive transmission portions 35. There is. The second member 54 is attached to the winding prevention cover 45 provided on the front side of the raising drive shaft 34.

As shown in FIGS. 5 and 6, the connecting pedestal portion 61 to which the second member 54 is attached in a fixed state is abutted from the rear surface side of the winding prevention cover 45 and connected by bolts. When the pedestal portion 61 is attached, the second member 54 is configured to be exposed toward the front through the insertion hole 62 formed in the wrapping prevention cover 45.

When the upper cover 46 is in the closed state, the first member 53 is located in a state of facing and close to the second member 54, and the first member 53 and the second member 54 are attracted by a magnetic force to cause the upper cover 46 to be attracted to each other. The position is held in the closed state.

The position holding mechanism 52 is configured to release the position holding by a force for ascending and swinging the upper cover 46. That is, the force attracted by the magnetic force is set to such a force that the position holding can be released by raising and swinging the upper cover 46 by manual operation.

The upper cover 46 is provided so as to cover the upper front side portion of the raising device 13, and the position holding mechanism 52 is provided with the first member 53 and the second member when the raising device 13 is switched from the normal working posture to the open posture. It is configured so that the 54 and the 54 overcome the force attracted by the magnetic force, and the front surface 13a of the raising device 13 comes into contact with each other to release the position holding.

〔Direction indicator〕
Left and right direction indicators 62R and 62L are provided while being located at the front of the aircraft. In the left and right direction indicators 62R and 62L, the right direction indicator 62R as one of them is provided on the right side of the front part of the cabin 8 as one side in the left and right direction. On the other hand, the left side direction indicator 62L is provided at the left side portion of the front portion of the machine body as the opposite side in the left-right direction, that is, the left portion of the cutting portion 2. As shown in FIG. 3, the turn signal 62L on the left side is supported by a support 72 connected to the cutting frame 20.

The right turn signal 62R is supported by the front pillar 64 of the cabin 8. A rear-view mirror 65 is provided on the lateral outer side of the cabin 8, and the right direction indicator 62R is provided below the lower end of the back mirror 65 and at the same height as the upper end of the threshing device 6. .. The right direction indicator 62R is positioned substantially the same as the right headlight device 26 in the left-right direction.

An operation unit 67 having a changeover switch 66 as an operation tool for switching the operating state of the direction indicators 62R and 62L is provided on the right side portion in the front portion inside the cabin 8. The right direction indicator 62R is provided at the same height as the operation unit 67 and at a height corresponding to the lower end of the right end of the windshield 68 of the cabin 8 in front view.

The right end portion of the cutting portion 2 is located on the outer side in the right direction with respect to the right end portion of the cabin 8. Even with such a configuration, it is possible to visually check the direction indicator 62R on the right side from the front side when the cutting unit 2 is raised to the retracted position.

The right direction indicator 62R is provided at a position higher than the cutting section 2 in the retracting position so that when the cutting section 2 is raised to the retracted position, it can be visually recognized from the front side of the machine body. The right turn signal 62R is provided at a position higher than the height of the left turn signal 62R even when the cutting portion 2 is raised to the retracted position.

[Another Embodiment]
(1) In the above embodiment, one of the direction indicators 62R is provided at substantially the same position in the left-right direction as the headlight device 26 in the front view, but instead of this configuration, it is different in the left-right direction. It may be provided at a position.

(2) In the above embodiment, one of the direction indicators 62R is provided at the same height as the upper end portion of the threshing device 6, but instead of this configuration, the position is different from the upper end portion of the threshing device 6. It may be provided in.

(3) In the above embodiment, one of the direction indicators 62R is provided below the lower end of the rear-view mirror 65, but instead of this configuration, it is provided above the lower end of the rear-view mirror 65. It may be configured to be.

(4) In the above embodiment, one of the direction indicators 62R is supported by the front pillar 64 of the cabin 8, but instead of this configuration, it may be supported by a support extending from the machine frame 21. good.

(5) In the above embodiment, the other turn signal 62L is provided on the left side of the cutting section 2, and even when the cutting section 2 is located at the maximum ascending position, the other turn signal 62R is provided. Is configured to be higher than the other turn signal 62L, but instead of this configuration, the other turn signal 62L may be configured to support the machine frame 21 or the threshing device 6, and may be cut. Regardless of the raising and lowering of the portion 2, the other direction indicator 62L may be provided at the same height as the one direction indicator 62R.

(6) In the above embodiment, the proximity portion 48 is configured to form a backward curved surface 49 that is recessed so as to approach the raising device 13, but instead of this configuration, for example, FIG. 9 As shown in FIG. 10, a structure may be formed in which an inclined surface 69 is formed as a proximity portion 48 on the lower side portion 46B so as to be raised from the upper side portion 46A and inclined toward the device 13. Also, as shown in FIG. As shown, the proximity portion 48 may be configured such that a forward curved surface 70 is formed as the proximity portion 48, which is curved in a shape that bulges forward from the upper side portion 46A and approaches toward the raising device 13.

The present invention can be applied not only to head-feeding combine harvesters but also to ordinary-type combine harvesters.

2 Cutting part 5 Driving part 8 Cabin 62R One direction indicator 62L The other direction indicator 65 Back mirror 66 Operation tool 67 Operation part 68 Windshield

Claims (10)

A cutting section located at the front of the machine to cut the planted culm,
The driving unit located behind the cutting unit and
The cabin that covers the periphery of the driving unit,
It is equipped with left and right turn signals located at the front of the aircraft.
The cutting section is configured to be able to move up and down over the working position for cutting and the evacuation position located above.
One of the left and right direction indicators is provided on one side of the front part of the cabin in the left and right direction, and the other is provided on the opposite side of the front part of the fuselage in the left and right direction.
The one direction indicator is a combine provided at a position higher than the cutting portion at the maximum ascending position. Headlights are provided on one side of the cutting section in the left-right direction.
The combine according to claim 1, wherein the one direction indicator is positioned substantially the same as the headlight in the left-right direction in a front view. A threshing device is installed at the rear of the machine,
The combine according to claim 1 or 2, wherein the one direction indicator is provided at the same height as the upper end portion of the threshing device. A rear-view mirror is provided on the lateral outer side of the cabin.
The combine according to any one of claims 1 to 3, wherein the one direction indicator is provided below the lower end portion of the rear-view mirror. The combine according to any one of claims 1 to 4, wherein the one direction indicator is supported by the front pillar of the cabin. An operation unit having an operation tool for switching the operating state of the direction indicator is provided on one side of the front portion of the cabin in the left-right direction.
The combine according to any one of claims 1 to 5, wherein the one direction indicator is provided at the same height as the operation unit. The combine according to any one of claims 1 to 6, wherein the one direction indicator is provided at a height corresponding to a lower end portion of one side end portion in the left-right direction of the windshield of the cabin in a front view. .. The claim that the left-right one-sided end of the cutting portion is located at the same position as the left-right one-sided end of the cabin, or is located on the left-right outer side of the left-right one-sided end of the cabin. The combine according to any one of 1 to 7. The combine according to any one of claims 1 to 8, wherein the other direction indicator is provided at a portion on the other side in the left-right direction of the cutting portion. The combine according to claim 9, wherein the one turn signal is higher than the other turn signal even when the cutting portion is located at the maximum ascending position.

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