JP2022100101A - combine - Google Patents

Abstract

To provide a combine capable of suppressing contact of planting grain culm which is being lifted to an upper part of a lifting part.SOLUTION: A combine comprises: a reaping part 4 which can be lifted and reaps grain culm; and an operation part 5A which is provided on a rear side of the reaping part 4 and has an operation seat 25. The reaping part 4 comprises: a plurality of grass dividers 9 which divides the planting grain culm; a lifting part 10 for lifting the planting grain culm divided by the grass dividers 9; and a lifting drive shaft 17 which is provided on an upper part of the lifting part 10 in an extending state along the machine body lateral direction, and to which drive force for lifting the lifting part 10 is transmitted. In a state in which the grass dividers 9 contact a farm field, the lifting drive shaft 17 is positioned at a position higher than a floor part 31 of the operation part 5A.SELECTED DRAWING: Figure 6

Description

The present invention relates to a combine.

Conventionally, as a combine, for example, the combine described in Patent Document 1 is known. The combine described in Patent Document 1 is configured to be able to move up and down, and has a harvesting section (“cutting section [3]” in the document) for harvesting harvested culms, and a driving section provided behind the harvesting section and having a driver's seat. (In the literature, "driving unit [4]") is provided. In the cutting section, there are multiple weeding tools that weed the planted culm, a triggering section that causes the planted culm planted by the weeding tool (in the literature, "raising device [13]"), and A triggering drive shaft (“counter shaft [41]” in the literature), which is provided at the upper end of the raising portion so as to extend along the left-right direction of the machine body and transmits the driving force for triggering and driving the raising portion, is provided. There is.

Japanese Unexamined Patent Publication No. 2008-14395

In the combine described in Patent Document 1, the planted culm being raised is introduced into the grain culm introduction portion of the triggering portion, but the planted culm during triggering may come into contact with the upper portion of the triggering portion. be. Then, when the planted culm being raised comes into contact with the upper part of the raised portion, there is a concern that the grain may be lost or the posture of the planted culm being raised may be disturbed.

In view of the above situation, there is a demand for a combine that does not easily come into contact with the upper part of the raised portion due to the planted culm being raised.

The feature of the present invention is that it is configured to be able to move up and down, and includes a cutting section for cutting the cut grain culm, and a driving section provided behind the cutting section and having a driver's seat, and the cutting section is a planted grain culm. A plurality of weeding tools for weeding, a raising part that causes the planted culm planted by the weeding tool, and an upper end portion of the raising part are provided in a state of extending along the left-right direction of the machine. It has a triggering drive shaft to which the driving force for triggering and driving the raising portion is transmitted, and the raising driving shaft is located higher than the floor portion of the driving portion in a state where the weeding tool is in contact with the field. It is in the position.

Here, usually, the cutting section performs the cutting work only by raising the weeding tool from the field. Therefore, according to this feature configuration, the trigger drive shaft during the mowing operation is located at a position higher than the floor portion of the driving unit. As a result, the grain culm introduction portion of the raising portion can be formed to a relatively high position. Therefore, it is difficult for the planted culm during raising to come into contact with the upper part of the raising part. That is, it is possible to reduce the loss of grains and the disorder of the posture of the planted culm during the raising due to the contact of the planted culm during the raising with the upper part of the raised portion. ..

Further, in the present invention, the driver unit has a footrest on which the driver seated in the driver's seat rests his / her feet, and a footrest support member for supporting the footrest is provided on the floor. It is preferable that the raising drive shaft is located at a position higher than the upper end of the footrest support member in a state where the weeding tool is in contact with the field.

According to this feature configuration, the trigger drive shaft is located at a higher position during the cutting work. As a result, the culm introduction portion can be formed to a higher position so that the planted culm being raised is less likely to come into contact with the upper portion of the culm portion.

Further, in the present invention, the raising drive shaft is located at a position lower than the upper end of the front wall in a state where the front wall is erected at the front end of the floor and the weeding tool is in contact with the field. It is preferable to do so.

According to this feature configuration, the trigger drive shaft during the cutting work is suppressed to a position lower than the upper end of the front wall to some extent. As a result, when the driver sees the front and lower parts over the front wall during the mowing work, the upper part of the raising portion does not easily obstruct the driver's line of sight.

Further, in the present invention, the cutting section is configured to be able to ascend to an ascending non-working position where the planting culm is not cut, and when the cutting section is raised to the ascending non-working position, the raising and driving is performed. It is preferable that the shaft is located at a position higher than the seat surface of the driver's seat.

According to this feature configuration, when the weeding tool is in contact with the field, the cutting part is raised to the raised non-working position even if the raising drive shaft is located at a position lower than the seat surface of the driver's seat. In the state, the raising drive shaft will be located higher than the seat surface of the driver's seat. As a result, the weeding tool can be greatly separated from the field in a state where the cutting portion is raised to the raised non-working position.

Further, in the present invention, the raising drive shaft is provided on the side surface in a state where the cabin portion covering the driving portion is provided, the entrance / exit door is provided on the side portion of the cabin portion, and the weeding tool is in contact with the field. It is preferable that the door is located at a position higher than the straight line passing through the rear upper corner of the door and the front end of the weeding tool.

According to this feature configuration, the trigger drive shaft is located at a higher position during the cutting work. As a result, the culm introduction portion can be formed to a higher position so that the planted culm being raised is less likely to come into contact with the upper portion of the culm portion.

Further, in the present invention, a meter panel is provided in front of the driver's seat, and a meter panel support member for supporting the meter panel is provided below the meter panel in a state of being separated upward from the floor portion. It is preferable that the raising drive shaft is located at a position lower than the meter panel support member when the weeding tool is in contact with the field.

According to this feature configuration, the raising drive shaft during the cutting work is suppressed to a position lower than the meter panel support member to some extent. As a result, when the driver sees the front and lower parts beyond the meter panel support member during the cutting work, the upper part of the raising portion does not easily obstruct the driver's line of sight.

Further, in the present invention, a cabin portion that covers the driving portion is provided, a windshield is provided on the front surface portion of the cabin portion, and the weeding tool is used in a side view in a state where the weeding tool is in contact with the field. It is preferable that the windshield intersects with a straight line passing through the front end and the rotation axis center of the raising drive shaft.

According to this feature configuration, when the driver looks into the front and lower parts of the windshield from above the intersection with the above-mentioned straight line, the weeding tool is visually recognized. As a result, the weeding tool can be easily visually recognized without causing the driver's line of sight to be obstructed by the upper part of the portion.

Further, in the present invention, a cabin portion that covers the driver portion is provided, a windshield is provided on the front portion of the cabin portion, and laterally extending along the left-right direction of the machine body between the driver's seat and the windshield. A frame is provided, the horizontal frame is arranged in a state where the windshield is divided into upper and lower parts in a front view, and when the weeding tool is in contact with the field, the raising drive shaft is at a position lower than the horizontal frame. It is preferable that it is located in.

According to this feature configuration, the raising drive shaft during the cutting work is suppressed to a position lower than the horizontal frame to some extent. As a result, when the driver sees the front and lower parts beyond the horizontal frame during the cutting work, the upper part of the raising portion does not easily obstruct the driver's line of sight.

Further, in the present invention, it is preferable that the plurality of weed tools do not overlap with the raising portion in a plan view in a state where the weed tools are in contact with the field.

According to this feature configuration, a plurality of weeding tools are located in front of the raising portion so as not to overlap the raising portion in a plan view. As a result, it is possible to rationally arrange a plurality of weeding tools so that the plurality of weeding tools can act on the planted culm at an early timing.

Further, in the present invention, the raising portion is provided in a posture of tilting backward in a lateral view, the cutting portion has a weeding frame for supporting the weeding tool, and the weeding frame is the above-mentioned weeding frame. It has a mounting part to which a grounding sensor for detecting that the weeding tool has touched the field is attached, and the mounting part is formed in a curved shape protruding upward from the side view, and the weeding tool is attached to the field. In the grounded state, it is preferable that the rear end portion of the mounting portion overlaps with a straight line extending the front surface of the raising portion in a side view.

According to this feature configuration, the rear end portion of the mounting portion is located in the vicinity of the front lower end portion of the raised portion. As a result, the mounting portion can be rationally arranged by making good use of the margin space below the front lower end portion of the raising portion.

It is a left side view which shows a combine. It is a top view which shows the combine. The combine is a front view. It is a right side view which shows the front lower part of a cutting part. It is a right side view which shows the front part of a combine, and is the right side view which shows the cutting part in the state where the weeding tool touches the field. It is a right side sectional view which shows the front part of a combine, and is the right side sectional view which shows the cutting part in the state which the weeding tool touches the field. It is a right side sectional view which shows the front part of a combine, and is the right side sectional view which shows the state which the cut part has risen to the ascending non-working position.

A mode for carrying out 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", the direction of the arrow L is the "left side of the aircraft", and the direction of the arrow R is the "right side of the aircraft".

[Overall composition of combine]
1 to 3 show a head-feeding combine (corresponding to the "combine" according to the present invention). As shown in FIGS. 1 to 3, the combine is provided with a traveling machine body 1. The traveling machine body 1 is provided with a crawler traveling device 2 and an aircraft frame 3 supported by the crawler traveling device 2. In front of the traveling machine 1, a cutting section 4 is provided so as to be able to move up and down and to cut the planted culm. A driving cabin 5 is provided in the front portion of the traveling machine body 1 behind the cutting portion 4.

An engine (not shown) is provided below the driving cabin 5. Behind the operating cabin 5, a grain storage tank 6 for storing the grains after the threshing process is provided. To the left of the grain storage tank 6, a threshing device 7 for threshing the cut grain culms from the cutting section 4 is provided. A grain discharge device 8 for discharging grains in the grain storage tank 6 is connected to the grain storage tank 6.

[Mowing section]
As shown in FIGS. 1 to 3, the cutting unit 4 is configured to have a plurality of cutting specifications (in this embodiment, a seven-row cutting specification). The cutting section 4 includes a plurality of (eight in this embodiment) weeding tools 9 for weeding the planted culms, and a triggering section 10 for causing the planted culms planted by the weeding tools 9. A cutting blade device 11 for cutting the planted grain culm caused by the raising unit 10 and a transporting unit 12 for transporting the cut grain culm cut by the cutting unit 11 toward the rear of the machine body are provided. .. Side covers 13 are provided on the left and right sides of the cutting portion 4, respectively. Each weeding tool 9 is supported by a weeding frame 14. In the following description, the eight weeding tools 9 will be referred to as the first to eighth weeding tools 9 in order from the left side.

The cutting unit 4 has a descending work position for cutting the planted culm and an ascending non-working 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 able to swing up and down. Normally, the cutting unit 4 performs the cutting work with the weeding tool 9 slightly raised from the field.

The first, third, fourth, sixth, and eighth weeding tools 9 are composed of large-sized weeding tools 9. The second, fifth, and seventh weeding tools 9 are composed of small weeding tools 9. When the weeding tool 9 is in contact with the field, the first to seventh weeding tools 9 do not overlap with the raising portion 10 (details are described later, the first to seventh raising devices 16) in a plan view. ..

As shown in FIG. 4, the weeding frame (second weeding frame) 14 supporting the second weeding tool 9 and the weeding frame (seventh weeding frame) supporting the seventh weeding tool 9 ) 14, each has a grounding sensor 15 for detecting that the weeding tool 9 has touched the field. That is, the second grass frame 14 and the seventh grass frame 14 are each provided with a mounting portion 14a to which the grounding sensor 15 is mounted. The mounting portion 14a is formed in a curved shape that protrudes upward in a side view.

[Cause part]
As shown in FIGS. 1 to 3, a plurality of (seven in this embodiment) triggering devices 16 and a triggering drive shaft 17 to which a driving force for triggering and driving the triggering portion 10 is transmitted to the raising unit 10 , A plurality of (four in this embodiment) grain culm introduction portions 18 into which planted culms are introduced are provided. The raising portion 10 is provided in a posture of being tilted backward in a side view. In the following description, the seven raising devices 16 will be referred to as the first to seventh raising devices 16 in order from the left side. Further, the four grain culm introduction sections 18 are referred to as first to fourth grain culm introduction sections 18 in order from the left side.

The raising device 16 is provided in a posture of being tilted backward in a side view. The triggering device 16 includes a triggering chain 19, a plurality of triggering claws 20 attached to the triggering chain 19, a drive sprocket 21, a tension sprocket 22 and a roller 23 around which the triggering chain 19 is wound, and a triggering cover 24 for covering them. Is provided.

The raising claw 20 is attached to the raising chain 19 so as to be able to undulate with respect to the raising chain 19. The triggering device 16 is in an upright posture in which the triggering claw 20 triggers and stands up against the chain 19 in the triggering path that causes the planted culm, and the triggering claw 20 triggers the chain 19 in the non-triggering path that does not cause the planted grain culm. It is configured to be in a prone position. The planted claw 20 is introduced into the grain culm introduction unit 18 by causing the claw 20 to move in the erecting path in an upright position and the claw 20 to cause and act on the planted culm.

The first grain culm introduction portion 18 is formed between the trigger path side portion of the first trigger device 16 and the trigger path side portion of the second trigger device 16. In the first grain culm introduction unit 18, a planted grain culm caused by the first raising device 16 and a planted grain culm caused by the second raising device 16 are introduced.

The second culm introduction portion 18 is formed between the non-causing path side portion of the second triggering device 16 and the third triggering path side portion. The planted culm triggered by the third triggering device 16 is introduced into the second culm introduction section 18.

The third culm introduction portion 18 is formed between the trigger path side portion of the fourth trigger device 16 and the trigger path side portion of the fifth trigger device 16. In the third culm introduction unit 18, a planted culm triggered by the fourth triggering device 16 and a planted culm triggered by the fifth triggering device 16 are introduced.

The fourth grain culm introduction portion 18 is formed between the trigger path side portion of the sixth trigger device 16 and the trigger path side portion of the seventh trigger device 16. In the fourth grain culm introduction unit 18, a planted grain culm caused by the sixth triggering device 16 and a planted grain culm triggered by the seventh triggering device 16 are introduced.

The raising drive shaft 17 is provided over the upper end portion of the first to seventh raising devices 16 so that the driving force can be transmitted to each raising device 16. That is, the raising drive shaft 17 is provided at the upper end portion of the raising portion 10 in a state of extending along the left-right direction of the machine body. The raising drive shaft 17 is configured to be rotatable around a rotation axis X2 extending along the left-right direction of the machine body. Between the raising drive shaft 17 and each raising device 16, a transmission case 44 that causes the power of the raising drive shaft 17 and transmits the power to the raising device 16 is provided, respectively. The power of the raising drive shaft 17 is transmitted to each raising device 16 (each driving sprocket 21) via each transmission case 44 or the like.

In FIG. 4, the raising extension line of the raising portion 10 is shown by L1, and the straight line extending the front surface of the raising cover 24 is shown by L2. The raising extension line L1 and the straight line L2 each correspond to the "straight line extending the front surface of the raising portion" according to the present invention. As shown in FIG. 4, the raising extension line L1 is a line extending the front surface of the movement locus of the raising claw 20 in a side view. The straight line L2 is a straight line parallel to (or substantially parallel to) the raising extension line L1. In a state where the weed tool 9 is in contact with the field, the rear end portion of the attachment portion 14a is raised from the side view and overlaps with the extension line L1 and the straight line L2.

[Driving cabin]
As shown in FIGS. 2, 3, 5, and 6, the driving cabin 5 includes a driving unit 5A on which the driver is boarding and a cabin unit 5B that covers the driving unit 5A.

The driver's seat 25 on which the driver sits, the engine bonnet 26 covering the engine, the meter panel 27, the operation lever 28, the side panel 29, and the driver seated on the driver's seat 25 are on the driver's seat 5A. It is provided with a footrest 30 on which the vehicle is placed. The floor portion of the driving unit 5A is configured by step 31.

The engine bonnet 26 is provided with a top plate 26a. The driver's seat 25 is placed and supported on the top plate 26a.

The meter panel 27 is configured to display, for example, the engine speed, the vehicle speed, the remaining amount of fuel, and the like. The meter panel 27 is provided in front of the driver's seat 25.

The operation lever 28 is for steering the traveling machine body 1 and raising and lowering the cutting unit 4. The operation lever 28 is provided on the right side with respect to the driver's seat 25.

The side panel 29 is provided on the left side of the driver's seat 25. The side panel 29 is provided with a main shift lever 32. The main shift lever 32 is for shifting and operating a hydrostatic continuously variable transmission as a main transmission (not shown) for shifting the power from the engine.

The footrest 30 is provided at a position below the meter panel 27 so as to be the meter panel 27 in a plan view. The footrest 30 is supported by step 31 via the left and right upper stays 33 and the left and right lower stays 34 (corresponding to the "footrest support member" according to the present invention).

The left upper stay 33 is attached to the left end of the footrest 30. The upper stay 33 on the right side is attached to the right end portion of the footrest 30. The upper stay 33 on the left side is attached to the lower stay 34 on the left side so that the vertical position can be changed. The upper stay 33 on the right side is attached to the lower stay 34 on the right side so that the vertical position can be changed. By changing the vertical position of the upper stay 33 with respect to the lower stay 34, the vertical position of the footrest 30 can be adjusted.

The lower stay 34 is erected at the front end of step 31. That is, a lower stay 34 for supporting the footrest 30 is provided at the front end of the step 31.

A front wall 35 is erected at the front end of step 31. The front wall 35 extends from step 31 to a height position equal to (or substantially the same as) the height position of the top plate 26a. That is, the upper end 35a of the front wall 35 is the same as (or substantially the same as) the height position of the top plate 26a.

A roof portion 36 is provided on the upper portion of the cabin portion 5B. A windshield 37 is provided on the front surface of the cabin portion 5B. The windshield 37 is provided in a posture of tilting forward when viewed from the side. The windshield 37 extends from the roof portion 36 to the lower side of the seat surface 25a of the driver's seat 25. Specifically, the windshield 37 extends from the roof portion 36 to a height position equal to (or substantially the same as) the height position of the top plate 26a. That is, the lower end of the windshield 37 is the same as (or substantially the same as) the height position of the top plate 26a. The lower end of the windshield 37 is supported by the upper end of the front wall 35.

A boarding / alighting door 38 is provided on the side surface of the cabin portion 5B. The boarding / alighting door 38 is configured to swing open / close around a swing axis Z1 extending in the vertical direction. The boarding / alighting door 38 is provided with a glass portion 39 and a sash portion 40 attached to a peripheral portion of the glass portion 39.

Between the driver's seat 25 and the windshield 37, below the meter panel 27, a horizontal frame 41 extending along the left-right direction of the machine body (corresponding to the "meter panel support member" and the "horizontal frame" according to the present invention). Is provided. The horizontal frame 41 is arranged so that the windshield 37 is divided into upper and lower parts in a front view. The horizontal frame 41 also serves to guard the driver's knees seated in the driver's seat 25 from hitting the windshield 37. Below the horizontal frame 41 (between the horizontal frame 41 and the front wall 35), a line-of-sight space S is formed so that the driver seated in the driver's seat 25 can see the front and lower parts.

A meter panel 27 is supported on the horizontal frame 41 via an upper stay 42 and a lower stay 43. That is, a horizontal frame 41 that supports the meter panel 27 is provided below the meter panel 27 in a state of being separated upward from the step 31. The upper stay 42 is attached to the lower stay 43 so that the angle (front-back swing angle) can be changed and the vertical position can be changed. By changing the front-back swing angle and the up-down position of the upper stay 42 with respect to the lower stay 43, the front-back position and the up-down position of the meter panel 27 can be adjusted.

[Cause drive shaft]
5 and 6 show a cutting section 4 in a state where the weed tool 9 is in contact with the field. In FIG. 6, the line of sight of the driver seated in the driver's seat 25 is shown by L3. As shown in FIG. 6, the line of sight L3 is the line of sight when the driver seated in the driver's seat 25 looks forward and downward through the line-of-sight space S.

In the state where the weed tool 9 is in contact with the field, the raising drive shaft 17 is located at a position higher than the step 31 of the driving unit 5A. Specifically, when the weed tool 9 is in contact with the field, the raising drive shaft 17 is located higher than the upper end 34a of the lower stay 34 (corresponding to the "upper end of the footrest support member" according to the present invention). Is located in.

When the weed tool 9 is in contact with the field, the raising drive shaft 17 is located at a position lower than the horizontal frame 41. Specifically, in a state where the weed tool 9 is in contact with the field, the raising drive shaft 17 is located at a position lower than the upper end 35a of the front wall 35.

In FIG. 6, a straight line passing through the front end of the weed tool 9 and the rotation axis X2 of the raising drive shaft 17 is shown by L4. As shown in FIG. 6, when the weed tool 9 is in contact with the field, the straight line L4 and the lower part of the windshield 37 intersect in a side view.

In FIG. 5, a straight line passing through the rear upper corner portion of the entrance / exit door 38 (glass portion 39) and the front end of the weed tool 9 is shown by L5. As shown in FIG. 5, when the weed tool 9 is in contact with the field, the raising drive shaft 17 is located at a position higher than the straight line L5 in the side view.

FIG. 7 shows a state in which the cutting unit 4 is raised to a non-working position (for example, a state in which the cutting unit 4 is raised to the maximum). In FIG. 7, the height position of the seat surface 25a of the driver's seat 25 is indicated by H1. Specifically, the height position H1 indicates the height position of the front end portion of the seat surface 25a of the driver's seat 25. As shown in FIG. 7, in a state where the cutting portion 4 is raised to the raised non-working position, the raising drive shaft 17 is located at a position higher than the seat surface 25a (height position H1) of the driver's seat 25.

[Another Embodiment]
(1) In the above embodiment, when the weed tool 9 is in contact with the field, the raising drive shaft 17 is located at a position higher than the upper end 34a of the lower stay 34. However, in a state where the weed tool 9 is in contact with the field, the raising drive shaft 17 may be located at a position lower than the upper end 34a of the lower stay 34.

(2) In the above embodiment, when the weed tool 9 is in contact with the field, the raising drive shaft 17 is located at a position lower than the upper end 35a of the front wall 35. However, in a state where the weed tool 9 is in contact with the field, the raising drive shaft 17 may be located at a position higher than the upper end 35a of the front wall 35.

(3) In the above embodiment, the raising drive shaft 17 is located at a position higher than the seat surface 25a of the driver's seat 25 in a state where the cutting portion 4 is raised to the raised non-working position. However, in a state where the cutting portion 4 is raised to the raised non-working position, the raising drive shaft 17 may be located at a position lower than the seat surface 25a of the driver's seat 25.

(4) In the above embodiment, when the weed tool 9 is in contact with the field, the raising drive shaft 17 is located at a position higher than the straight line L5 in the side view. However, in a state where the weed tool 9 is in contact with the field, the raising drive shaft 17 may be located at a position lower than the straight line L5 in the side view.

(5) In the above embodiment, the raising drive shaft 17 is located at a position lower than the horizontal frame 41 when the weed tool 9 is in contact with the field. However, in a state where the weed tool 9 is in contact with the field, the raising drive shaft 17 may be located at a position higher than the horizontal frame 41.

(6) In the above embodiment, when the weed tool 9 is in contact with the field, the straight line L4 and the windshield 37 intersect in a side view. However, when the weed tool 9 is in contact with the field, the straight line L4 and the windshield 37 do not have to intersect in a side view.

(7) In the above embodiment, when the weeding tool 9 is in contact with the field, the first to seventh weeding tools 9 do not overlap with the raising portion 10 in a plan view. However, in a state where the weed tool 9 is in contact with the field, the first to seventh weed tools 9 may overlap with the raising portion 10 in a plan view.

(8) In the above embodiment, when the weed tool 9 is in contact with the field, the rear end portion of the attachment portion 14a is raised from the side view and overlaps with the extension line L1 and the straight line L2. However, in a state where the weed tool 9 is in contact with the field, the rear end portion of the attachment portion 14a does not have to overlap with the straight line L2 in the side view. Alternatively, in a state where the weed tool 9 is in contact with the field, the rear end portion of the attachment portion 14a does not have to be raised from the side view and overlap with the extension line L1 and the straight line L2.

(9) In the above embodiment, the cutting unit 4 is configured to have a seven-row cutting specification. However, the cutting unit 4 is not limited to the seven-row cutting specification. For example, the cutting unit 4 may be configured to have a six-row cutting specification.

(10) In the above embodiment, the cabin portion 5B is provided. However, the cabin portion 5B may not be provided.

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

4 Mowing part 5A Driving part 5B Cabin part 9 Weeding tool 10 Raising part 14 Weeding frame 14a Mounting part 15 Grounding sensor 17 Raising drive shaft 25 Driver's seat 25a Seat surface 27 Meter panel 30 Footrest 31 Floor part 34 Lower stay ( Footrest support member)
34a Upper end of lower stay (upper end of footrest support member)
35 Front wall 35a Upper end of front wall 37 Windshield 38 Entrance / exit door 41 Horizontal frame (meter panel support member, horizontal frame)
L1 Raising extension line (straight line extending the front of the raising part)
L2 straight line (straight line extending the front of the raising part)
L4 straight line (straight line passing through the front end of the weeding tool and the center of rotation of the triggering drive shaft)
L5 straight line (straight line passing through the rear upper corner of the door and the front end of the weeding tool)

Claims (10)

A cutting section that is configured to be able to move up and down and cuts the cut grain culm,
A driving unit provided behind the cutting unit and having a driver's seat is provided.
The cutting part has a plurality of weeding tools for weeding the planted culm, a raising part for causing the planted culm sown by the weeding tool, and a raising part at the upper end of the raising part in the left-right direction of the machine. It has a triggering drive shaft, which is provided so as to extend along the same direction, and a driving force for causing and driving the raising portion is transmitted.
A combine in which the trigger drive shaft is located higher than the floor of the driving unit when the weeding tool is in contact with the field. The driver unit has a footrest on which the driver seated in the driver's seat rests his / her feet.
A footrest support member for supporting the footrest is provided on the floor.
The combine according to claim 1, wherein the raising drive shaft is located at a position higher than the upper end of the footrest support member in a state where the weeding tool is in contact with the field. A front wall is erected at the front end of the floor.
The combine according to claim 1 or 2, wherein the raising drive shaft is located at a position lower than the upper end of the front wall when the weeding tool is in contact with the field. The cutting section is configured to be able to rise to an ascending non-working position where the planting culm is not cut.
The combine according to any one of claims 1 to 3, wherein the raising drive shaft is located at a position higher than the seat surface of the driver's seat in a state where the cutting portion is raised to the raised non-working position. .. A cabin section that covers the driving section is provided.
A door for getting on and off is provided on the side of the cabin.
When the weeding tool is in contact with the field, the raising drive shaft is located at a position higher than a straight line passing through the rear upper corner of the boarding / alighting door and the front end of the weeding tool in a side view. The combine according to any one of Items 1 to 4. A meter panel is provided in front of the driver's seat.
A meter panel support member for supporting the meter panel is provided below the meter panel in a state of being separated upward from the floor portion.
The combine according to any one of claims 1 to 5, wherein the raising drive shaft is located at a position lower than the meter panel support member in a state where the weeding tool is in contact with the field. A cabin section that covers the driving section is provided.
A windshield is provided on the front surface of the cabin portion.
13. The combine described in any one of the items. A cabin section that covers the driving section is provided.
A windshield is provided on the front surface of the cabin portion.
A horizontal frame extending in the left-right direction of the aircraft is provided between the driver's seat and the windshield.
The horizontal frame is arranged so that the windshield is divided into upper and lower parts in a front view.
The combine according to any one of claims 1 to 7, wherein the raising drive shaft is located at a position lower than the horizontal frame when the weeding tool is in contact with the field. The combine according to any one of claims 1 to 8, wherein the plurality of weeds are not overlapped with the raising portion in a plan view in a state where the weeds are in contact with the field. The raising portion is provided in a posture of tilting backward when viewed from the side.
The cutting section has a weeding frame that supports the weeding tool.
The weeding frame has a mounting portion to which a grounding sensor for detecting that the weeding tool has touched the field is attached.
The mounting portion is formed in a curved shape that protrudes upward in a side view.
6. Combine.

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