JP5452185B2 - Combine - Google Patents

Description

  The present invention relates to a combine provided with a grain tank for storing selected grains behind a driving operation unit.

  Conventionally, the operation section of a combine has been provided with a plurality of operation levers operated by an operator seated in the driver's seat, and these operation levers are centrally arranged on the front and left sides of the driver's seat so that the operator can easily operate them. However, as the number of operation levers increases, the operation lever arrangement space is insufficient only in the front and left sides of the driver seat. In view of this, there has been known one in which an operation lever (rear operation lever) is further provided behind the driver seat (for example, see Patent Documents 1 and 2).

No. 6-33797 JP 2008-104385 A

However, in particular, those equipped with a grain tank behind the driving operation unit have a grain tongue close to the rear of the driving seat, so those described in Patent Documents 1 and 2 operate the rear operation lever. When doing so, the rear grain tank gets in the way and it is difficult to operate. In addition, the ones described in both documents 1 and 2 are configured to operate the rear operation lever in the front-rear direction and the pivot point of the rear operation lever in the left-right direction of the machine body. There is a problem that the trouble is promoted and the operability is further deteriorated.
An object of the present invention is to improve the above-mentioned conventional problems.

In order to achieve the above object, the present invention includes a driving operation unit 6 on the right side of the machine body 1, a grain tank 7 on the rear side thereof, a threshing unit 4 mounted on the left side of the machine body 1, and a front side thereof. In the combine provided with the pre-processing unit 3, a left operation lever 12c that operates in the front-rear direction is provided on the left side of the driving seat 9 provided in the driving operation unit 6, and the side on which the left operation lever 12c protrudes. behind the operation panel 12, besides behind the driver's seat 9, provided the operation lever 13 after the operation in the up and down direction and pivotally attached to the base end side pivotably in the longitudinal direction of the pivot axis X around In addition, the front lower side 7b of the front side upper side 7a of the grain tank 7 is inserted rearward to form a concave space Y on the front side of the grain tank 7, and the rear operation lever 13 is moved to the front side of the concave space Y. The concave space Y is positioned so as to face the part, and the rear operation lever is Upon the 13 operating space, the pivot axis X of the rear operating lever 13 is positioned from the driver's seat 9 on the left, the driver's seat 9 which extends the tip operating portion 13a of the rear operating lever 13 to the right The rear operation lever 13 is configured to be operated in the vertical direction on the rear side of the driver seat 9 while facing the grain tank 7 .

Moreover, in the combine which equips the right side of the fuselage 1 with the driving | operation operation part 6, the grain tank 7 is provided in the back, the threshing part 4 is mounted in the left side of the fuselage 1, and the pre-processing part 3 is provided in the front, A left operation lever 12c for operating in the front-rear direction is provided on the left side of the driver seat 9 provided in the driver operation unit 6, and the base end side is rotated about the rotation axis X in the front-rear direction behind the driver seat 9. A rear operation lever 13 is provided which is pivotally mounted and operated in the left and right or up and down directions, and the front lower side 7b of the grain tank 7 is inserted rearward with respect to the front upper side 7a of the grain tank 7. A concave space Y is formed on the front side, the rear operation lever 13 is positioned so as to face the front portion of the concave space Y, the concave space Y is used as an operation space for the rear operation lever 13, and the grain tank 7 The lower front side 7b of the front side is the left side 7d with respect to the right side 7d. There is formed so as to enter the rear, the rear operating lever 13, characterized in that is positioned in the left side 7c front of the front lower side 7b of the grain tank 7.

According to the first aspect of the present invention, the left operation lever 12c is provided on the left side of the driver seat 9 , and behind the side operation panel 12 on which the left operation lever 12c protrudes, and behind the driver seat 9. By providing the rear operation lever 13 on the rear side, it is possible to cope with an increase in the number of the operation levers, but by setting the concave space Y on the front side of the grain tank 7 as the operation space for the rear operation lever 13, The lever 13 can be easily operated without being disturbed by the grain tank 7.
Moreover, operating the rear operating lever 13 upward downward direction (i.e., operated in the planar direction orthogonal to the longitudinal direction) for that is configured to, by suppressing the generation of the front-rear direction of the lever operating allowance, the left operating lever 12c before and after When operating in the direction, it is possible to prevent the rear operation lever 13 from being hindered as much as possible , and the operation lever 13 can be operated more easily even if the grain tank 7 is close.
Moreover, when the whole front surface of the grain tank 7 is separated backward so that the post-operation lever 13 can be easily operated, the capacity of the grain tank 7 is greatly reduced. Since the front lower side 7b is inserted into the rear to form a concave space Y to be an operation space for the rear operation lever 13, the grain tank can be operated while the rear operation lever 13 can be easily operated. Compared with the case where the entire front surface of 7 is separated backward, the capacity of the grain tank 7 can be increased.
Further, the rear operation lever 13 is arranged on the left side behind the driver seat 9 and the operator can easily operate the rear operation lever 13 by turning to the left rear. Since it is operated up and down along the part, the concave space Y can always be effectively used as the operation space during the operation, and the operability can be further improved, and the front surface of the grain tank 7 and the driver seat 9 Can be used as an arrangement space for the rear operation lever 13.

In the invention described in claim 2, the left operation lever 12c is provided on the left side of the driver seat 9, and the rear operation lever 13 is provided behind the driver seat 9, so that the number of operation levers can be increased. However, by using the concave space Y on the front side of the grain tank 7 as an operation space for the rear operation lever 13, the rear operation lever 13 can be easily operated without being disturbed by the grain tank 7. it can.
In addition, since the rear operation lever 13 is operated up and down or left and right (that is, operated in a plane direction perpendicular to the front-rear direction), the left operation lever 12c is controlled by suppressing the generation of the lever operation allowance in the front-rear direction. When operating in the front-rear direction, it is possible to prevent the rear rear operation lever 13 from being obstructed as much as possible, and the rear operation lever 13 can be operated more easily even when the grain tank 7 is close. .
Moreover, when the whole front surface of the grain tank 7 is separated backward so that the post-operation lever 13 can be easily operated, the capacity of the grain tank 7 is greatly reduced. Since the front lower side 7b is inserted into the rear to form a concave space Y to be an operation space for the rear operation lever 13, the grain tank can be operated while the rear operation lever 13 can be easily operated. Compared with the case where the entire front surface of 7 is separated backward, the capacity of the grain tank 7 can be increased.
Furthermore, the front lower side 7b of the grain tank 7 can more easily operate the rear operation lever 13 by expanding the concave space Y rearward so that the left side 7c enters the rear side with respect to the right side 7d. Can do.

It is a right perspective view of a combine. It is a left side sectional view of the threshing part carried in the combine. It is a front perspective view around the drive operation part which described the driver's seat with the virtual line. It is a right side enlarged view around the rear operation lever. It is the front (front) enlarged view around a rear operation lever. It is a top view of the state which fractured | ruptured the grain tank in the AA cross section of FIG. It is a perspective view which shows the connection state of the chaff sheave of a rocking | swiveling sorter | selector, a rear operation lever, and the clamping rail of a waste. FIG. 5 is an enlarged perspective view around a chaff sheave with a side plate of the swing sorter omitted.

One embodiment of the present invention will be described with reference to FIGS.
First, the basic structure of a combine adopting the present invention will be described with reference to FIG. 1. Reference numeral 1 denotes a double-stretch combine body, which is provided with a crawler type traveling device 2 at the lower part of the body 1, and a left side of the body 1. The pre-processing unit 3 is mounted on the front side (front left side with respect to the forward direction) so as to be rotatable up and down. A threshing unit 4 is mounted, and a post-processing unit 5 is provided behind the threshing unit 4 for cutting the threshed waste.

  On the other hand, a driving operation unit 6 is provided in front of the right side of the machine body 1, and a grain tank 7 for storing the grains selected by the threshing unit 4 is provided behind the operation unit 6. Reference numeral 8 denotes a grain discharge auger that discharges the grains stored in the grain tank 7 to a transport vehicle or the like outside the machine. The grain discharge auger 8 includes a vertical discharge auger 8a having a lower end communicating with the grain tank 7; The horizontal discharge auger 8b is connected to the upper end of the vertical discharge auger 8a so as to be horizontally rotatable and vertically movable.

Next, the detailed structure of the driving | operation operation part 6 is demonstrated based on FIG.1 and FIG.3-6.
The driving operation unit 6 includes a driving seat 9, a front operation panel 11 disposed in front of the driving seat 9 across the step 10, a side operation panel 12 disposed on the left side of the driving seat 9, and both operation panels 11. , 12 and various operation levers provided on the rear side of the side operation panel 12.

The above-described various operation levers will be described in detail. The front operation panel 11 is provided with a mono lever 11a that controls the left / right steering operation of the machine body and the up / down operation of the preprocessing unit 3. The side operation panel 12 includes a traveling main transmission lever 12a and a traveling auxiliary transmission lever 12b that shift the traveling speed to the front side, operated in the front-rear direction to the left side of the driver seat 9 behind the traveling main transmission lever 12a. A work machine clutch lever 12c (the left operation lever of the present invention) for turning on and off the processing unit 3 and the threshing unit 4 is provided. Is provided.
Further, a fin opening adjustment lever 13 (a rear operation lever of the present invention) is disposed behind the work implement clutch lever 12c, and the vertical discharge auger 8a is horizontally rotated at the upper left of the fin opening adjustment lever 13. Also, an auger operation lever 14 for raising and lowering is provided.

The drainage switching lever 12d is a lever that switches between a state in which the post-processing unit 5 cuts the waste into a state where the waste is discharged to the field and a state in which the waste is discharged as it is, and a narrow guide entry lever 12e. Is a lever which is provided on the left side of the pre-processing unit 3 and switches between a use state in which a narrow guide (not shown) for weeding cereals is projected and a stored non-use state.
In addition, an engine room 15 is formed below the driver seat 9.

Next, the detailed structure of the threshing unit 4 will be described with reference to FIGS.
The threshing unit 4 is mounted on the combine machine 1 with the left side in FIG. 2 positioned on the front side of the machine, 16 is a handling chamber, and a handling cylinder 17 in which a large number of teeth 17a are implanted in the handling chamber 16. An interior shaft is mounted, and a receiving net 18 is stretched on the lower outer periphery of the handling chamber 16. Further, a processing chamber 19 is provided from the rear side to the rear side of the handling chamber 16. A processing cylinder 20 is mounted on the processing chamber 19, and a processing net 20 a is stretched on the lower outer periphery of the processing chamber 19. It is installed. Then, the front part of the processing chamber 19 communicates with the rear side of the handling chamber 16, and the processed material that has not leaked from the receiving net 18 is transferred from the handling chamber 16 to the processing chamber 19.

A threshing feed chain 21 is fixed to the outside of the handling chamber 16, and a waste transporting body 22 including a waste chain 22 a, a holding rail 22 b, and the like is provided from the end of the threshing feed chain 21 to the rear. .
Then, the threshing process is performed by the handling cylinder 17 which is inserted and rotated in the handling chamber 16 while transferring and transferring the stock side of the grain mash harvested and transported by the pretreatment unit 3 by the threshing feed chain 21. (Degraining process), and the drained waste is sandwiched and transported between the waste chain 22a of the waste transporting body 22 and the sandwiching rail 22b.

  Further, a post-processing unit 5 is provided below the rear end of the waste transporting body 22, and a state in which the waste is allowed to pass over the post-processing unit 5 and in the post-processing unit 5 are disposed above the post-processing unit 5. A switching plate 5a for switching to the supply state is provided. Then, the switching plate 5a is switched by the above-described waste switching lever 12d, and by this operation, the waste transported by the waste transporting body 22 is passed over the post-processing unit 5 from its rear end, and the long plate It is configured to switch between a state in which it is discharged outside the apparatus as it is and a state in which it is supplied into the post-processing unit 5 and chopped and discharged outside the apparatus.

On the other hand, a sorting chamber 23 is provided from the lower side to the rear side of the handling chamber 16, and the front-rear direction formed by the compressed air fan 24 provided at the front portion of the sorting chamber 23 and the suction fan 25 provided at the rear portion. A swing sorting body 26 is supported in the sorting air passage so as to be driven to swing in the front-rear direction.
The swing sorter 26 is configured to connect a non-porous gren pan 28 and a plurality of fins 29a that are sequentially fixed from the front side (transfer start end) to the rear side (transfer end) between the left and right swing side plates 27a and 27b. It comprises a chaff sheave 29 having a height H and continuously arranged in the front-rear direction, a stroll rack 30, a leakage net 31 below the chaff sheave 29, and the like.

  Below the oscillating sorter 26, the first spiral 42 that collects the selected grain and transfers it to the side, and the second product that contains grains and debris is collected and transferred to the side. Number spiral 43 is provided.

  With the above-described configuration, processed products such as grains and relatively small waste generated in the handling chamber 16 leak from the receiving net 18 onto the grain pan 28 of the swing sorter 26 and do not leak from the receiving net 18. The large processed material is transferred to the processing chamber 19 to be subdivided, and the small processed material leaks from the processing network 20 to the swing sorter 26, and the large debris that has not leaked from the processing network 20 is processed in the processing chamber. 19 is discharged from the terminal end and discharged outside the apparatus by the suction fan 25.

On the other hand, the processed material leaked onto the grain pan 28 becomes an object to be sorted and is moved rearward on the grain pan 28 by a swinging motion, and is selected by the chaff sheave 29 by wind and leak. That is, relatively small and high specific gravity grains and some debris fall on the lower leakage net 31 from the leakage interval H of the fins 29a, and the grains that have leaked the leakage net 31 After being collected by the watch spiral 42 and transferred to the side, it is transferred into the grain tank 7 by the whipping cylinder 37 described later.
A relatively large object to be sorted that has not leaked at the chaff sheave 29 is transferred to the rear Strollac 30 where it is separated, and the object to be sorted containing grains and debris falls downward from the Strollack 30 and is second. After being collected by the second spiral 43 and transferred to the side, it is reduced and re-sorted on the Glen pan 28 of the swing sorter 26 by a second reduction cylinder (not shown).
The waste that has not dropped from the Strollac 30 is sucked and discharged by the suction fan 25 while being transported rearward by the Strollac 30.

Next, a detailed structure for adjusting the leakage interval H of the fin 29a will be described.
The plurality of fins 29a constituting the chaff sheave 29 are configured to be simultaneously rotated around the upper support pin 29b to adjust the leakage interval H of the fins 29a. That is, the upper support pins 29b are fixed to the left and right sides of the fins 29a, and the left and right upper support pins 29b are pivotally supported on the left and right swing side plates 27a and 27b, respectively. Further, lower support pins 29c are fixed to the left and right sides of the lower sides of the fins 29a. The left and right lower support pins 29c pass through the long holes 27c formed in the left and right swing side plates 27a and 27b, and the lower support pins 29c. Is pivotally attached to the transmission link 32 outside the left and right swing side plates 27a, 27b.

Next, a fin opening degree automatic adjustment unit that automatically adjusts the leakage interval H (opening degree) of the fin 29a according to the amount of the objects to be sorted will be described.
The front end of the left transmission link 32 is pivotally attached to the swing link 33 via a connecting pin 32a, and the swing link 33 is pivotally supported at the upper end on the left swing side plate 27a via a pin 33a. It is configured to be swingable. The other end of the swing link 33 is connected to the inner wire 34a of the first control wire 34, and the opposite side of the inner wire 34a is connected to the rod 22c that supports the holding rail 22b of the evacuation transport body 22 described above. Yes.
The rod 22c is supported in the sorting chamber 23 so as to be slidable in the axial direction, and is biased in the direction of the exhaust chain 22a (upward) by a spring 22d, whereby the holding rail 22b is always directed toward the exhaust chain 22a. It is a configuration to be energized.
Incidentally, 33b is a return spring of the swing link 33, and 33c is a stopper which contacts the swing link 33 and regulates the return position of the swing link 33.

  With the above configuration, when the clamping rail 22b operates in the distance (up and down movement) with respect to the waste chain 22a according to the thickness of the waste that is sandwiched and conveyed between the waste chain 22a and the sandwiching rail 22b, the rod 22c and the inner The swing link 33 pivots about the pin 33a via the wire 34a, the transmission link 32 moves back and forth, and each fin 29a pivots about the upper support pin 29b at a stroke, and the leakage interval of the fin 29a H is automatically adjusted. That is, the thicker the layer of the waste, the more the holding rail 22b is separated from the waste chain 22a, the inner wire 34a is greatly pulled, and the swing link 33 is largely rotated counterclockwise in FIG. The inclination angle of each fin 29a becomes steep and the leakage interval H automatically increases. Here, the layer thickness of the waste, that is, the amount of waste is generally proportional to the amount of the sorting object to be threshed and sorted, and the thicker the waste layer, the larger the amount of the sorting object. is there.

  In the above-described embodiment, the fin opening automatic adjustment means automatically adjusts the inclination angle of the fin 29a in accordance with the layer thickness of the waste, but is not limited to such a form. The amount of the object to be sorted on the sorting body 26 may be directly detected by a sensor, and the first control wire 34 may be operated using an actuator such as an electric motor based on the detection result.

Next, fin opening adjustment range setting means for changing the automatic adjustment range of the fin 29a leakage interval H (opening) by the fin opening automatic adjustment means will be described.
An adjustment link 35 is pivotally attached to the left swing side plate 27a by a support shaft 35a, and an outer wire 34b of the first control wire 34 is fixed to the adjustment link 35. Further, the inner wire 36a of the second control wire 36 is connected to the distal end side of the adjustment link 35, and the opposite side of the inner wire 36a is connected to the fin opening adjustment lever 13 side. That is, the fin opening adjusting lever 13 includes a distal end operating portion 13a, a base end side arm 13b, and a plate-like spring 13c for connecting and fixing the distal end operating portion 13a and the arm 13b. The opposite side of the wire 36a is connected. The arm 13b is pivotally attached to a lever support bracket 13d fixed to the airframe by a pivot shaft 13e in the front-rear direction.

  Accordingly, the fin opening adjustment lever 13 is pivotally mounted on the base end side so as to be rotatable about the pivot shaft 13e, that is, the rotation axis X in the front-rear direction, and the fin opening adjustment lever 13 is orthogonal to the front-rear direction. It is configured to be operated in the left-right or front-rear direction (surface direction orthogonal to the front-rear direction).

Reference numeral 13f is a locking portion (locking notch) for positioning the fin opening adjustment lever 13 provided on the lever support bracket 13d, and 13g is fixed to the fin opening adjustment lever 13, Engaging portions (engaging protrusions) 13h that engage with the stoppers 13f are flexible resin covers that cover the front side of the base side of the fin opening adjusting lever 13.
Reference numeral 35b denotes a return spring of the adjustment link 35, and reference numeral 35c denotes a stopper that contacts the adjustment link 35 and restricts the return position of the adjustment link 35.

  The first control wire 34 and the second control wire 36 are routed together in the front-rear direction on the outside of the left swing side plate 27a, so that maintenance is facilitated.

  With the above configuration, when the fin opening adjustment lever 13 is operated, the adjustment link 35 is rotated about the support shaft 35a via the inner wire 36a, and the inclination angle of each fin 29a is changed. The automatic adjustment range of the leakage interval H (opening) of the fin 29a is changed.

  That is, in FIG. 7, when the fin opening adjustment lever 13 is operated upward in a state where the cereal is not nipped and conveyed by the waste conveying body 22, the adjustment link 35 is rotated counterclockwise via the inner wire 36 a. Since the first control wire 34 is rotated and the entire first control wire 34 is pulled, the swing link 33 is also rotated counterclockwise, and accordingly, each fin 29a is changed to a steep inclination, and the leakage interval H is widened. Then, the position of each fin 29a where the leakage interval H becomes wide becomes the minimum reference position of the leakage interval H (opening), and thereafter, according to the layer thickness of the waste that is nipped and conveyed by the waste conveyance body 22. The leakage interval H of the fin 29a is automatically adjusted.

  Accordingly, the fin opening adjustment lever 13 is operated in advance before work according to the state of the standing rice, the variety, etc., and the engaging portion 13g is engaged with the locking portion 13f at the operating position, so that the fin If the opening adjustment lever 13 is positioned and fixed, the automatic adjustment range of the leakage interval H of the fin 29a by the fin opening automatic adjustment means can be freely changed, and the sorting performance can be improved even if the crop situation changes. It can be maintained well.

The adjustment link 35 is provided with adjustment holes 35d for the first and second control wires 34, 36, while the holes 27d are also provided at positions corresponding to the holes 35c of the left swing side plate 27a. Is provided. Then, a stopper such as a pin is inserted through the hole 35c and the hole 27d from the outside, and the adjustment link 35 is temporarily fixed to the swing side plate 27a to hold the position. In this state, the leakage interval H of the fin 29a is The attachment positions of the front and rear ends of the outer wire 34b of the first control wire 34 are adjusted so as to obtain an appropriate set interval. Next, the attachment positions of the front and rear ends of the outer wire 36b of the second control wire 36 are adjusted so that the fin opening adjustment lever 13 is in an appropriate position. Thereby, the attachment position adjustment of the 1st, 2nd control wires 34 and 36 can be performed easily, and the proper leakage interval H of the fin 29a can be maintained, and it can classify | select favorably.

Next, the detailed structure around the fin opening adjustment lever 13 will be described with reference to FIGS.
The fin opening adjustment lever 13 is positioned immediately behind the work machine clutch lever 12c and behind the driver seat 9 so that the fin opening adjustment lever 13 can be operated in a plane direction substantially orthogonal to the longitudinal direction of the machine body with the rotation axis X as the center. It is configured. Specifically, the rotation axis X of the fin opening adjustment lever 13 is positioned on the left side of the driver seat 9, and the tip operating portion 13a of the fin opening adjustment lever 13 is moved rightward from the rotation axis X. It extends so that the front end operation portion 13a enters the space between the front face of the rear grain tank 7 and the backrest portion 9a of the driver seat 9, and the fin opening adjustment lever 13 is connected to the backrest portion of the driver seat 9. It is comprised so that it may operate in the up-down direction at the rear side of 9a. Then, as the fin opening adjustment lever 13 is operated upward, the leakage interval H is automatically adjusted by the fin opening automatic adjustment means while the leakage interval H of the fin 29a is larger.

On the other hand, as shown in FIG. 4 and the like, the grain tank 7 causes the front upper side 7a to enter the rear side, that is, the front upper side 7a of the grain tank 7 bulges forward. By doing so, a concave space Y is formed on the front side of the grain tank 7. Further, as shown in FIG. 6 and the like, the front lower side 7b of the grain tank 7 is formed such that the left side (back side) 7c enters the rear side with respect to the right side 7d (outside), thereby forming a concave space. Y is further expanded rearward.
And the front-end | tip operation part 13a of the lever 13 for fin opening adjustment is located so that it may face the front part of the concave space Y ahead of the said left side 7c of the front lower side 7b of the grain tank 7. FIG. Specifically, in the front-rear direction of the concave space Y, the tip operation portion 13a is located at substantially the same position as the front portion of the concave space Y (substantially the same position as the front upper side 7a of the grain tank 7 and below it). .

Further, the work machine clutch lever 12c is configured so that the base end is pivotally attached to a support shaft (not shown) in the left-right direction and is operated in the front-rear direction. Both clutches are disengaged and both are stopped. At the intermediate position, only the clutch of the threshing unit 4 is engaged and only the threshing unit 4 is driven. At the front position, the clutch of the pretreatment unit 3 and the clutch of the threshing unit 4 are engaged. Both are entered and both are driven.
Moreover, the grain tank 7 is comprised so that horizontal rotation to the outer side maintenance position centering on the vertical discharge auger 8a (vertical axis center) of an up-down direction.

  In the figure, reference numeral 37 denotes a milling cylinder, 38 denotes a lock lever for fixing or releasing the joined state of the tip of the milling cylinder 37 and the grain tank 7, 39 denotes a drive clutch lever for the grain discharge auger 8, and 40 denotes An auger receiver 41 of the lateral discharge auger 8 b is a cover body that covers the bases of the drive clutch lever 39, the auger operation lever 14, and the auger receiver 40.

The embodiment of the present invention is as described above, and the following effects are achieved by this embodiment.
That is, a working machine clutch lever 12c that operates in the front-rear direction is provided on the left side of the driver seat 9, a fin opening adjustment lever 13 is provided at the rear of the driver seat 9, and the front upper side 7a of the grain tank 7 is provided. The front lower side 7b is inserted into the rear to form a concave space Y on the front side of the grain tank 7 so that at least the tip operating portion 13a of the fin opening adjustment lever 13 faces the front of the concave space Y. The operator's hand passes through the concave space Y when the fin opening adjustment lever 13 is gripped and operated, even though the number of operation levers of the combine operation operation unit 6 is increased. Thus, by arranging the fin opening adjustment lever 13 so as to face the concave space Y, the concave space Y can be used as an operation space for the fin opening adjustment lever 13. Accordingly, the fin opening adjusting lever 13 can be easily operated without being obstructed by the grain tank 7.

  In addition, the fin opening adjusting lever 13 is not operated in the front-rear direction, but is operated in the left-right or up-down direction around the rotation axis X in the front-rear direction, that is, in the plane direction substantially orthogonal to the front-rear direction of the body ( The operation of the fin opening adjustment lever 13 is performed even when the grain tank 7 is close by suppressing the generation of the lever operation allowance in the front-rear direction. It can be easily operated.

  Further, the fin opening adjustment lever 13 is located immediately behind the work implement clutch lever 12c, but the fin opening adjustment lever 13 is operated in a plane direction substantially orthogonal to the longitudinal direction of the machine body and protrudes forward. Because it is not necessary (if the lever is operated in the front-rear direction at the pivot point in the horizontal direction like the conventional rear operation lever, the rear operation lever protrudes forward when it is operated in front), the work is frequently used. When the machine clutch lever 12c is operated in the front-rear direction, it is possible to prevent the rear fin opening adjustment lever 13 from becoming an obstacle as much as possible. A flexible resin cover 13h that covers the front side of the base of the fin opening adjustment lever 13 is located behind the work implement clutch lever 12c, so that the operation of the work implement clutch lever 12c can be easily performed without concern. it can.

  Further, since the front lower side 7b of the front side 7a of the grain tank 7 is inserted rearward and the concave space Y is partially formed on the front side, the fin opening adjustment lever 13 is easily operated. Compared with the case where the entire front surface of the grain tank 7 is separated backward, the capacity of the grain tank 7 can be increased as much as possible.

  Further, the front lower side 7b of the grain tank 7 causes the left side 7c to enter the rear side with respect to the right side 7d, and the fin opening adjusting lever 13 is moved forward of the left side 7c of the front lower side 7b of the grain tank 7. Therefore, the fin opening adjustment lever 13 can be operated more easily by making the concave space Y formed deeper and rearwardly enlarged to be an operation space. be able to.

  Even if the whole grain tank 7 is configured to be horizontally rotatable to the outside maintenance position around the rear vertical discharge auger 8a (vertical axis), as described above, the grain tank 7 By allowing the left side 7c of the front side to enter the rear side, the front part of the grain tank 7 is prevented from coming into contact with the equipment or device disposed in the front or the engine room 15 when the grain tank 7 is rotated. it can. Therefore, the maintainability of various devices arranged on the machine body on the back side of the grain tank 7 can be improved.

  Further, the rotation axis X of the fin opening adjustment lever 13 is positioned on the left side of the driver seat 9, and the tip operation portion 13 a of the fin opening adjustment lever 13 is extended rightward from the rotation axis X. The fin opening adjustment lever 13 is operated up and down on the rear side of the driver seat 9 so that the operator can turn the fin back by turning back to the left rear. The opening adjustment lever 13 can be easily operated. Moreover, since the fin opening adjustment lever 13 is operated up and down along the front portion of the concave space Y, the concave space Y is always effectively used as the operation space during the operation, and the operability can be further improved. At the same time, the space between the front surface of the grain tank 7 and the driver's seat 9 can be used as an arrangement space for the fin opening adjustment lever 13.

  In the embodiment of the present invention, the left operating lever is the work machine clutch lever 12c that is used frequently, and the rear operating lever is the fin opening adjustment lever 13 that is used less frequently. The operation lever and the rear operation lever are not specified by the work implement clutch lever 12c and the fin opening adjustment lever 13.

In other words, the left operating lever may be operated in the front-rear direction, and may be any lever provided on the combine, for example, a traveling speed shift lever of the combine.
Further, the rear operation lever may be a lever that is operated in the left-right or up-down direction, that is, a surface direction substantially orthogonal to the front-rear direction of the aircraft (the invention of claim 3 specifies the lever operated in the up-down direction). ), For example, without a fin opening automatic adjustment means, a lever for adjusting the fin leakage interval H only by hand, a switching lever for shredding and discharge of long waste, and a grain discharge auger In addition to the drive clutch lever, any lever provided on the combine may be used.

  Further, in the embodiment of the present invention, the rear operation lever is disposed at substantially the same position as the front surface portion of the concave space Y. However, in the present invention, the rear operation lever faces the concave space Y, and the rear operation lever is What is necessary is that the operator's hand passes through the concave space Y during operation of the lever and the concave space Y is used as an operation space. For example, even if the rear operation lever itself enters the concave space Y, Conversely, the rear operation lever may protrude slightly forward in the concave space Y.

3 Pretreatment part 4 Threshing part 6 Driving operation part 7 Grain tank 9 Driving seat 12c Work machine clutch lever (left operation lever)
13 Fin opening adjustment lever (rear operation lever)
X Rotation axis Y Recessed space

Claims (2)

A driving operation unit (6) is provided on the right side of the machine body (1), a grain tank (7) is provided behind the machine body, a threshing part (4) is mounted on the left side of the machine body (1), and preprocessing is performed on the front side thereof. In the combine provided with the portion (3), a left operating lever (12c) for operating in the front-rear direction is provided on the left side of the driver seat (9) provided in the driving operation portion (6), and the left operating lever (12c ) On the rear side of the side operation panel (12) projecting, and rearward of the driver seat (9), the base end side is pivotably pivoted about the pivot axis (X) in the front-rear direction. together to provide a control lever (13) after operating the up and down direction, grain tank its lower front side of the front upper (7a) and (7b) are allowed to enter the rear of the grain tank (7) A concave space (Y) is formed on the front side of (7), and the rear operating lever (13) is connected to the front of the concave space (Y). By positioning to face, when the concave-shaped space (Y) operation space of the rear operating lever (13) to the left from the pivot axis (X) of the driver's seat (9) of the rear operating lever (13) The rear operation lever (13) has a tip operation portion (13a) extending in the right direction so as to face between the driver seat (9) and the grain tank (7), and the rear operation lever (13). Is configured to be operated in the vertical direction on the rear side of the driver seat (9) . A driving operation unit (6) is provided on the right side of the machine body (1), a grain tank (7) is provided behind the machine body, a threshing part (4) is mounted on the left side of the machine body (1), and preprocessing is performed on the front side thereof. In the combine provided with the portion (3), a left operation lever (12c) for operating in the front-rear direction is provided on the left side of the driver seat (9) provided in the driver operation portion (6). A rear operation lever (13) is provided on the rear side so that the proximal end is pivotally pivoted about a pivot axis (X) in the front-rear direction, and is operated left and right or up and down, and the grain tank (7 The front lower side (7b) of the front upper side (7a) enters the rear side to form a concave space (Y) on the front side of the grain tank (7), and the rear operation lever (13) is concave. The concave space (Y) is positioned so as to face the front of the space (Y), and the concave operating space (Y) A working space, besides grain the front lower side of the tank (7) (7b), the left side (7c) is formed so as to enter the rear relative to the right side (7d), a rear operating lever (13), A combine characterized by being positioned in front of the left side (7c) of the front lower side (7b) of the grain tank (7).

Images