JP6396724B2 - Combine - Google Patents

Description

  The present invention relates to a combine provided with a threshing device and a grain storage unit arranged side by side on a body frame.

As a combine in which the threshing device and the grain storage unit are arranged side by side on the vehicle body frame as described above, there are the following structures.
For example, a columnar member for supporting the Glentank and the unloader on the rear side is attached to the rear side of the Glentank, and the lower end side of the columnar member is rotatable about the vertical axis with respect to the vehicle body frame. To support. Further, the support member is supported on another vertical frame fixed on the body frame so as to be relatively rotatable. And there exists a thing of the structure where the fuel tank was arrange | positioned in the narrow space between a threshing apparatus, a columnar member, and a vertical frame on the back side of a Glen tank (refer patent document 1).

JP 2012-90556 A (see paragraph “0021” and “FIG. 2”, “FIG. 4”, “FIG. 6” in the drawings)

In the structure shown in Patent Document 1, when the tank is opened for maintenance or the like, the unloader also rotates around a common vertical axis as in the case of the Glen tank, and is maintained in a state where there is no relative posture change. Has been.
Since the unloader and the Glen tank are configured to rotate around a common vertical axis in this way, the relative posture in plan view does not change, so the Glen tank is opened for maintenance etc. In doing so, it is useful in that it does not require any effort such as detaching the transmission structure between the Glen tank and the unloader or configuring the grain conveyance path to be intermittent.

  However, with the above structure, the space behind the Glen tank has a threshing device on one side in the left-right direction, and the other side supports the Glen tank so that it can rotate around the vertical axis. There are many support structures such as columnar members and vertical frames, and the space for disposing the fuel tank is limited to a narrow range. For this reason, there is room for improvement in that it is difficult to dispose a large-capacity fuel tank.

  An object of the present invention is to make it possible to dispose a large-capacity fuel tank by effectively using the space between the threshing device and the Glen tank.

The technical means of the combine in the present invention has structural features and operational effects in the following points.
[Solution 1]
The technical means of the present invention taken in order to solve the above problems are provided side by side with the threshing device and the grain storage part side by side on the body frame,
A fuel tank is arranged to enter the interval between the opposing locations of the threshing device and the grain storage unit ,
A guard member for regulating contact of other objects from the lower side with respect to the fuel tank is provided in a state of projecting rearward from a portion corresponding to the threshing device in a rear end portion of the body frame,
The fuel tank has a fuel filler opening provided at the rear of the fuel tank, facing rearward and adjacent to the guard member in plan view .

[Operation and effect of invention according to Solution 1]
According to the invention relating to the above solution 1, it is possible to increase the capacity of the fuel tank by effectively using the distance between the opposing portions of the threshing device and the grain storage unit as a space for disposing the fuel tank on the vehicle body frame. Moreover, since the fuel tank is located between the heavier threshing device and the grain storage unit, even if the capacity is large, it is easy to maintain a state in which the balance of the vehicle body due to increase / decrease in fuel is small. There is also an advantage.
[Solution 2]
Another technical means of the present invention taken in order to solve the above problem is that the fuel filler port is provided in a state of overlapping with the existence range of the guard member in a plan view.
[Solution 3]
The other technical means of the present invention taken to solve the above-mentioned problem is provided with an elbow part of an unloader that discharges the grain from the grain storage part behind the grain storage part,
The guard member regulates contact of other objects from the lower side with respect to the elbow part,
The said elbow part is provided in the state which overlaps with the presence range of the said guard member by planar view.

[Solution 4 ]
Another technical means of the present invention taken to solve the above problem is that the fuel tank is disposed on the rear side of the fuselage in the interval.

[Operations and effects of invention according to Solution 4 ]
According to the invention relating to the above solution 4 , since the fuel tank is disposed on the rear side of the fuselage, there is an advantage that the fuel tank can be conveniently used because it is easy to supply fuel from the rear side of the fuselage.

[Solution 5 ]
Another technical means of the present invention taken to solve the above problem is that the fuel tank is placed and supported on the vehicle body frame.

[Operation and effect of invention according to Solution 5 ]
According to the invention relating to the above solution 5 , when mounting a fuel tank with a large capacity, there is no need to provide a frame portion serving as a mounting base for mounting the fuel tank separately from the vehicle body frame. Since the vehicle body frame for mounting the grain storage unit can be used as it is, there is an advantage that the structure can be simplified.

[Solution 6 ]
Another technical means of the present invention taken in order to solve the above-mentioned problem is that the fuel tank has a protruding portion protruding rearward from the rear end portion of the threshing device on the rear end side. .

[Operations and Effects of Invention According to Solution 6 ]
According to the invention relating to the solving means 6 described above, the rear end side of the fuel tank is provided with a protruding portion that protrudes rearward from the rear end portion of the threshing device, and the space behind the threshing device is disposed in the rear side of the fuel tank. It can be used as an installation space and can further increase its capacity.

[Solution 7 ]
According to another technical means of the present invention taken in order to solve the above problems, the fuel tank has a protruding portion protruding rearward from the rear end portion of the grain storage portion on the rear end side. It is.

[Operation and effect of invention according to Solution 7 ]
According to the invention relating to the solving means 7 , the rear end side of the fuel tank is provided with a protruding portion that protrudes rearward from the rear end portion of the grain storage portion, and the space behind the grain storage portion is also provided. It can be used as a space for disposing a fuel tank and can further increase the capacity.

[Solution 8 ]
Another technical means of the present invention taken in order to solve the above problem is that an unloader for discharging the grain from the grain storage part is disposed on the laterally outer side of the projecting portion.

[Operation and effect of invention according to Solution 8 ]
According to the invention relating to the above solution 8 , in order to dispose the unloader that discharges the grain from the grain storage unit, the space on the vehicle body frame that inevitably exists on the rear side of the grain storage unit. There is an advantage that the capacity of the fuel tank can be increased without difficulty by rational use of space.

[Solution 9 ]
Another technical means of the present invention taken in order to solve the above-mentioned problem is that the fuel tank has a protruding portion protruding rearward from the rear end portion of the vehicle body frame on the rear end side. .

[Operations and effects of invention according to Solution 9 ]
According to the invention relating to the solving means 9 , there is an advantage that the capacity of the fuel tank can be further increased by providing the protruding portion protruding rearward from the rear end portion of the vehicle body frame.

[Solution 10 ]
Another technical means of the present invention taken in order to solve the above problems, below the projecting portion of the fuel tank, is that the previous outs over de members are provided.

[Operations and Effects of Invention According to Solution 10 ]
According to the invention relating to the above solution 10 , there is an advantage that it is possible to suppress contact with other objects from the lower side with respect to the fuel tank protruding rearward from the rear end portion of the vehicle body frame.

[Solution 11 ]
Another technical means of the present invention taken in order to solve the above problems, the rear of the projecting portion of the fuel tank, is that the previous outs over de members are provided.

[Operations and Effects of Invention According to Solution 11 ]
According to the invention relating to the above solution 11 , there is an advantage that the fuel tank protruding rearward from the rear end portion of the vehicle body frame can be prevented from coming into contact with other objects from the rear side.

[Solution 12 ]
Another technical means of the present invention taken in order to solve the above-mentioned problem is that the unloader for discharging the grain from the grain storage part protrudes rearward from the vehicle body frame behind the grain storage part. And the guard member is disposed rearward and lower than the unloader.

[Operations and Effects of Invention According to Solution 12 ]
According to the invention relating to the solving means 12 described above, there is an advantage that the fuel tank protruding rearward from the rear end portion of the vehicle body frame can be prevented from coming into contact with other objects from the rear side or the lower side.

[Solution 13 ]
Another technical means of the present invention taken for solving the above problems is to is provided with the fuel supply port to the upper portion of the projecting portion of the fuel tank.

[Operations and Effects of Invention According to Solution 13 ]
According to the invention relating to the solving means 13 , since the fuel filler opening is provided at the upper part of the protruding portion, there is an advantage that fuel can be easily supplied to the fuel tank from the rear side.

[Solution 14 ]
Another technical means of the present invention taken in order to solve the above-mentioned problems is that the fuel tank is disposed at a position overlapping the grain storage portion in plan view.

[Solution 14: Operation and Effect of the Invention]
According to the invention relating to the solution means 14 described above, there is an advantage that the space below the grain storage portion can be effectively used as the fuel tank arrangement space, and the tank capacity can be increased.

[Solution 15 ]
The other technical means of the present invention taken to solve the above-mentioned problem is that the grain storage part is provided with a Glen tank, and an inclined part with a narrowing is formed below the Glen tank, The fuel tank is arranged in a state of entering the inclined portion.

[Operations and Effects of Invention According to Solution 15 ]
According to the invention relating to the above solution 15 , there is an advantage that the tank capacity can be increased by effectively using the lower space of the inclined portion of the Glen tank.

[Solution 16 ]
Another technical means of the present invention taken in order to solve the above-mentioned problem is that the grain tank is provided with a bottom screw for discharging the internal grain, and the bottom screw is arranged in the lateral width direction of the grain tank. It is arrange | positioned in the position biased to the body outer side, and the said inclination part is formed in the body inner side of the said bottom screw.

[Operations and Effects of Invention According to Solution 16 ]
According to the invention relating to the solving means 16 , the bottom screw of the glen tank is positioned to be deviated laterally outward in the lateral width direction, so that the inclined portion formed on the inward side of the aircraft from the bottom screw. Since the lower space is widened, there is an advantage that a fuel tank having a large capacity can be easily disposed by using the lower space.

[Solution 17]
Another technical means of the present invention taken in order to solve the above problems, before Symbol feed oil port, between the lateral side walls of the grain tank side of the threshing apparatus, the lateral side walls of the threshing apparatus in the grain tank It is provided so that it may be located in.

[Operations and Effects of Invention According to Solution 17]
According to the invention relating to the solving means 17, the fuel tank can be easily opened and closed without being obstructed by the presence of the threshing device or the Glen tank. In addition, since the fuel filler port does not enter the lower side of the inclined portion of the Glen tank, there is no risk that the size of the entire tank is limited by the presence of the fuel filler port, and it is easy to ensure a large tank capacity in this respect as well. There are advantages.

[Solution 18 ]
Another technical means of the present invention taken in order to solve the above problem is that the fuel tank is formed with an outwardly inclined surface at a position facing the inclined portion.

[Operations and Effects of Invention According to Solution 18 ]
According to the invention relating to the solving means 18 described above, the fuel tank having the outwardly inclined surface is disposed at a position opposite to the inclined portion of the lower constriction formed below the Glen tank. Therefore, there is an advantage that a large capacity of the fuel tank can be secured by using the lower space of the inclined portion of the Glen tank more effectively.

[Solution 19 ]
Another technical means of the present invention taken in order to solve the above problem is that an inclination angle of the inclined surface is set so as to follow the inclined portion.

[Operation and Effect of Invention According to Solution 19 ]
According to the invention relating to the solving means 19 described above, the inclined portion of the Glen tank and the inclined surface of the fuel tank are arranged so as to be as close as possible while maintaining the necessary minimum distance between the inclined portions. Can be set. Therefore, there is an advantage that a larger capacity of the fuel tank can be secured by using the lower space of the inclined portion of the Glen tank more effectively.

[Solution 20 ]
Another technical means of the present invention taken in order to solve the above problems, the fuel tank, the upward surface of the horizontal or nearly horizontal position, the inclined surface and is being formed, prior Symbol feed oil port , Provided on the upward surface.

[Operations and Effects of Invention According to Solution 20 ]
According to the invention relating to the solving means 20 , the fuel filler port is positioned at the highest position of the fuel tank, and it is easy to perform the fueling operation into the fuel tank, but without being obstructed by the presence of the fuel filler port. There exists an advantage which can be arrange | positioned in the state where the surface was sunk under the inclination part of the Glen tank.

[Solution 21 ]
Another technical means of the present invention taken in order to solve the above problem is that a breather is provided on the upper surface of the upper surface of the fuel tank in a state of being located at or near the center of the area in plan view. It is that.

[Operation and Effect of Invention According to Solution 21 ]
According to the invention relating to the above solution 21 , it is easy to maintain the breather in a state where the breather is always in communication with the upper internal space in the fuel tank even if the attitude of the fuel tank changes due to rolling or pitching of the self-propelled aircraft. There is an advantage that the air in the tank can be easily vented without hindrance.

[Solution 22 ]
Another technical means of the present invention taken in order to solve the above-mentioned problem is that the upper wall of the fuel tank has fuel from the engine on the upward surface in a state of being located at or near the center of the area in plan view. The return pipe is connected.

[Operation and Effect of Invention According to Solution 22 ]
According to the invention relating to the solving means 22 , even if the fuel tank changes its posture due to rolling or pitching of the self-propelled airframe, the connection point of the fuel return pipe from the engine always communicates with the upper space in the fuel tank. There is an advantage that it is easy to maintain the above-described state, and it is easy to reduce the occurrence of a situation in which the internal fuel flows backward as the posture of the fuel tank changes.

[Solution 23 ]
Another technical means of the present invention taken to solve the above problem is that the lateral wall of the fuel tank facing the Glen tank is located at a position away from the lower end of the inclined portion in the left-right direction. A rising wall portion standing on the upper side of the frame and continuing to the lower end side of the inclined surface is provided, and the upper end of the rising wall portion is provided so as to be located above the lower end of the Glen tank. is there.

[Operation and Effect of Invention According to Solution 23 ]
According to the invention relating to the above solution 23 , since the rising wall portion connected to the lower end side of the inclined surface is provided on the lateral wall of the fuel tank facing the grain tank, the ratio of the planar arrangement space of the fuel tank Therefore, the space on the self-propelled aircraft can be used effectively by avoiding a decrease in the capacity of the vehicle and ensuring a large capacity of the fuel tank.
That is, it is possible to increase the capacity of the fuel tank by providing an outwardly inclined surface that sinks below the inclined portion of the Glen tank. However, at a location where there is an outwardly inclined surface of the fuel tank, the increase rate of the fuel tank capacity tends to gradually decrease with respect to the increase rate of the space where the fuel tank is disposed. For this reason, if the fuel tank is formed so that the inclined surface of the fuel tank faces the lower end of the inclined portion of the Glen tank, the installation space in the plan view of the entire fuel tank becomes considerably large. The capacity of the inside does not increase so much.
In the present invention, the fuel tank is provided with the inclined surface by providing the rising wall portion that stands on the upper side of the vehicle body frame and continues to the lower end side of the inclined surface at a position that is separated from the lower end of the inclined portion of the Glen tank in the left-right direction. Taking advantage of the increase in the tank capacity due to this, the area where the increase rate of the fuel tank capacity is small relative to the increase rate of the fuel tank installation space is omitted, and the space on the self-propelled aircraft can be used effectively. is there.

[Solution 24 ]
Another technical means of the present invention taken in order to solve the above-mentioned problem is that the bottom wall of the fuel tank has a discharge port for discharging the fuel oil in the tank at the center of the area of the bottom surface of the fuel tank or It is provided in the state located near it.

[Operation and Effect of Invention According to Solution 24 ]
According to the invention relating to the above solution 24 , the fuel oil in the fuel tank can be discharged almost certainly not only when the self-propelled aircraft is in a completely horizontal posture but also in a slightly inclined posture. There is.

[Solution 25 ]
Another technical means of the present invention taken in order to solve the above-mentioned problem is that the unloader for discharging the grain from the grain storage section is located on the outer side of the body opposite to the side where the fuel tank is disposed. The posture is switchable between a discharge posture in which the discharge side end portion is directed and a storage posture in which the discharge side end portion is directed upward on the body frame.

[Operation and Effect of Invention According to Solution 25 ]
According to the invention relating to the solving means 25 described above, the fuel tank is located at a location unrelated to the unloader swing operation range, and therefore the fuel tank disposition height is limited by the unloader swing operation range. There is an advantage that a fuel tank having a large capacity can be provided without inconvenience.

[Solution 26 ]
The other technical means of the present invention taken in order to solve the above-mentioned problem is that the fuel tank is located behind the second reduction device that reduces the second item to the threshing portion in the threshing device within the interval. It is arranged.

[Operation and Effect of Invention According to Solution 26 ]
According to the invention relating to the solution means 26 described above, the fuel tank is effectively utilized by the interval between the opposing positions of the threshing device and the grain storage unit, which is inevitably provided for arranging the second reduction device and the like. There is an advantage that can be provided.

[Solution 27 ]
Another technical means of the present invention taken in order to solve the above problem is that the fuel tank is disposed from the rear side of the fuselage to the vicinity of the rear end of the second reduction device.

[Operation and Effect of Invention According to Solution 27 ]
According to the invention relating to the solving means 27 described above, the fuel tank can be disposed long in the front-rear direction from the rear side of the fuselage to the vicinity of the rear end of the second reduction device, so that the tank capacity can be further increased. There are advantages.

[Solution 28 ]
Another technical means of the present invention taken in order to solve the above problem is that the fuel tank is disposed at a position overlapping with the second reduction device in the longitudinal direction of the fuselage.

[Operation and Effect of Invention According to Solution 28 ]
According to the invention relating to the solving means 28 described above, the fuel tank is disposed at a position overlapping with the second reduction device when viewed from the front-rear direction of the fuselage. That is, the second reduction device and the fuel tank are allocated to the front side and the rear side in the front-rear direction, and are disposed so as to overlap each other in the left-right direction.
Therefore, in the left-right direction, regardless of the presence of the second reduction device, it is possible to effectively use the entire width in the left-right direction at the narrow interval between the opposing locations of the threshing device and the grain storage unit. There is an advantage that can be further increased.

[Solution 29 ]
Another technical means of the present invention taken in order to solve the above-mentioned problem is that the grain storage unit includes a grain tank, and the grain tank is vertically moved in a vertical posture provided on the body frame. By turning around the axis Y, the posture is switched between a working posture stored in the self-propelled aircraft in a position close to the fuel tank and an inspection posture protruding from the fuel tank to the lateral side. It is supported freely.

[Operation and Effect of Invention According to Solution 29 ]
According to the invention relating to the above solution 29 , the working posture in which the glen tank is stored in the self-propelled aircraft at a position close to the fuel tank, and the inspection posture that projects away from the fuel tank to the lateral outside of the self-propelled aircraft Therefore, there is an advantage that maintenance work around the fuel tank can be easily performed.

[Solution 30 ]
Another technical means of the present invention taken in order to solve the above-mentioned problem is that the fuel tank is disposed so as to be located on the inner side in the left-right direction with respect to the location where the vertical axis is present. It is.

[Operation and Effect of Invention According to Solution 30 ]
According to the invention relating to the above solution 30 , the fuel tank is located on the inner side in the left-right direction with respect to the location of the vertical axis serving as the center of rotation of the Glen tank. There is an advantage that it is easy to make effective use of the space on the self-propelled aircraft without requiring a space for avoiding interference with the related operation mechanism or the like accompanying the turning of the tank to the outside of the aircraft.

[Solution 31 ]
The other technical means of the present invention taken in order to solve the above-mentioned problem is that, in the interval, a deck plate constituent material located on the vehicle body frame is provided, and the deck plate constituent material has a cross-sectional shape. The convex strip plate portions that are bent upward are positioned at a small interval in the left-right direction, so that a foreign substance drop port is formed between the convex strip plates. It is a thing.

[Operation and Effect of Invention According to Solution 31 ]
According to the invention relating to the solving means 31 described above, it is advantageous in that piping, wiring, and the like can be easily performed by using the interval between the protruding strips that are bent upward from the deck plate. And, since the foreign substance drop port is formed between the respective convex strips, it is in a state where dust such as foreign matters and straw scraps accumulates between the convex strips. There is an advantage that it is easy to avoid.

It is a right view of the whole ordinary combine. It is a top view of the whole ordinary combine. It is a top view which shows the positional relationship of the grain tank installed on the vehicle body frame, the threshing apparatus, and the fuel tank. It is a rear view which shows the positional relationship of the grain tank installed on the vehicle body frame, the threshing apparatus, and the fuel tank. It is a side view which shows the support structure of a Glen tank and an unloader. It is a rear view which shows the support structure of a Glen tank and an unloader. It is sectional drawing in the VII-VII line in FIG. It is sectional drawing in the VIII-VIII line in FIG. It is a disassembled perspective view which shows the support structure part by a support frame and an attachment frame. It is explanatory drawing which shows the removal | desorption state of the attachment frame in a mounting part, (a) shows the state which fitted the attachment frame to the cyclic | annular support body, (b) has shown the extracted state. It is a conceptual diagram which shows the transmission system to a Glen tank. It is a rear view which shows the attachment part of a jack receiving plate. It is a perspective view which shows the attachment part of a jack receiving plate. It is a rear view which shows the positional relationship of the grain tank installed on the vehicle body frame in another embodiment, the threshing apparatus, and a fuel tank. It is a rear view which shows the attachment structure of the fuel tank and the Glen tank and unloader in another embodiment. It is a horizontal direction sectional view showing a fuel tank in another embodiment. It is sectional drawing in the up-down direction which shows the fuel tank in another embodiment, and follows the front-back direction. It is a top view which shows the positional relationship of the linear body mounting plate and linear body in another embodiment. It is the XIX-XIX sectional view taken on the line in FIG. It is sectional drawing of the linear body mounting plate part in another embodiment. It is a top view of the whole common type combine in another embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. 〔overall structure〕
FIG. 1 and FIG. 2 show a normal combine as an example of a combine.
The ordinary combine is provided with a driving unit B and a pre-cutting processing device C at the front position of the self-propelled machine A that travels with the pair of left and right crawler travel devices 1, and the grain harvested by the pre-cutting processing device C The self-propelled machine A is provided with a full-throwing-type threshing device D into which the straw is fed, and a Glen tank E (corresponding to a grain storage unit) that stores the grain supplied from the threshing device D.

  Glen tank E has a working posture (posture shown by a solid line in FIG. 2) stored in self-propelled aircraft A by turning around vertical axis Y in a vertical posture at the rear position of self-propelled aircraft A, and a self-propelled aircraft. It is supported so as to be switchable to an inspection posture (posture indicated by a virtual line in FIG. 2) projecting laterally from A. An unloader F is provided on the rear surface of the Glen tank E. The unloader F undulates around the swing axis X in the front-rear direction so that the posture can be switched between a retracted posture in which the discharge side end portion is directed upward and a discharge posture in which the discharge side end portion is directed outward. It is provided so that it can swing freely. A fuel tank 4 is provided on the body frame 10 at a location corresponding to the rear end portion of the self-propelled aircraft A and between the grain tank E and the threshing device D.

  An engine 3 is disposed below the driver seat 2 of the driver B, and a transmission case (not shown) transmits driving force from the engine 3 to the left and right crawler travel devices 1 at the center of the front part of the self-propelled aircraft A. )). The transmission case is provided with a continuously variable transmission that continuously changes the driving force from the engine 3 and a steering clutch (not shown) that interrupts the driving force that is transmitted to the left and right crawler travel devices 1. Has been.

  The pre-harvest processing device C is configured to scrape the tip of the planted culm by rotating the reel 5 and to cut the stock of the culm with a cutter 6. The harvested cereals (reached cereals) are laterally fed by the transverse auger 7 and gathered near the entrance of the feeder 8 so that the whole culm is fed backward by the feeder 8 and sent to the threshing device D. It is configured. Further, the pre-cutting processing device C is configured to be swingable up and down around a horizontal axis (not shown) on the rear end side of the feeder 8. An actuator (not shown) such as a hydraulic cylinder that swings up and down is provided, and the cutting height of the cereal can be adjusted by setting the swing amount by the operation of the actuator.

[Boarding Driving Department]
The driver B is provided with a box-shaped engine cover 11 that covers the upper side of the engine 3, and a driver seat 2 is provided on the upper surface of the engine cover 11. An air intake case 11A is formed on the outer side of the engine cover 11, and an air intake portion 11B is formed on the outer surface of the air intake case 11A.
A control tower 12 is erected on the front side of the driver's seat 2, and an operation tool that performs steering control of the self-propelled aircraft A and an operation tool that performs lifting control of the pre-cutting processing device C on the upper surface side of the control tower 12. A steering lever 13 is also provided.
As shown in FIG. 2, a side panel 14 extending from the left lateral end position of the control tower 12 toward the rear side is provided on the left side of the driver seat 2. On the upper surface 14A of the front end portion of the side panel 14, a main transmission lever 15A and a sub transmission lever 15B are provided as a transmission operation tool 15 for controlling the traveling speed of the self-propelled machine body A.

A threshing clutch lever 16A and a reaping clutch lever 16B are provided on the upper surface 14A side of the side panel 14 at a position rearward of the speed change operation tool 15 in a state where they are arranged side by side. The threshing clutch lever 16A and the reaping clutch lever 16B operate the threshing clutch (not shown) in the threshing device D by turning the threshing clutch lever 16A back and forth, and cutting the threshing clutch lever 16B. The pretreatment device C is configured to perform an on / off operation of a cutting clutch (not shown).
Further, an operation box 17 equipped with a discharge clutch lever 18 is provided on the side panel 14 on the rear side of the threshing clutch lever 16A and the reaping clutch lever 16B. The discharge clutch lever 18 is an operation tool for performing an on / off operation of the discharge clutch G, which will be described later, in a state in which the grain discharge by the unloader F is enabled and a state in which the grain discharge is stopped.

The steering lever 13 provided on the upper surface side of the control tower 12 is maintained in a neutral posture in a non-operating state. By performing a swinging operation in the left-right direction based on this neutral posture, a mission case The steering clutch built in the vehicle is controlled to realize the steering (turning) of the self-propelled aircraft A. Further, by operating the steering lever 13 in the front-rear direction, the above-described actuator is controlled to raise and lower the cutting pretreatment device C.
The shift operating tool 15 shifts the continuously variable transmission by an operation in the front-rear direction to change the traveling speed. The threshing clutch lever 16 </ b> A is configured to perform an on / off operation of a threshing clutch that interrupts power to the threshing device D by an operation in the front-rear direction. The reaping clutch lever 16B is configured to perform an on / off operation of the reaping clutch that performs intermittent power to the pre-harvesting processing device C by an operation in the front-rear direction.

  As shown in FIG. 11, a discharge clutch G that transmits the driving force from the engine 3 to the discharge system of the Glen tank E is provided, and the above-described discharge clutch lever 18 is linked to operate the discharge clutch G. With such a configuration, by operating the discharge clutch lever 18 to the engaged position, the discharge clutch G is engaged and operated, and the driving force from the engine 3 is transmitted to the bottom screw 21 of the glen tank E, and further the unloader F is driven. The grain is discharged from the Glen tank E.

[Threshing equipment]
The threshing device D is an axial flow type barrel (not shown) that is driven and rotated around the axis of the posture along the front-rear direction of the self-propelled machine body A so as to perform the handling process of the harvested cereal grains supplied to the handling room. And a sorting device (not shown) for sorting the grains from the processed product obtained by the handling process.
In this sorting processing apparatus, among the sorted grains, the first thing is supplied to the grain tank E by the cerealing device 9, and the second thing is the handling chamber in which the barrel is turned by the second reducing device 19 (see FIG. (Not shown), and scraps other than the grains fall from the rear part of the sorting apparatus to the rear of the self-propelled aircraft A.

[Glen tank]
As shown in FIGS. 1, 5, and 6, the Glen tank E includes a bottom screw 21 at the bottom of the tank body 20 that feeds grains stored in the tank body 20 backward. Most of the bottom wall 20A of the tank body 20 is lower in the left and right direction so that the stored grain flows down to the outside of the self-propelled aircraft A in the working posture stored in the self-propelled aircraft A. It is formed on an inclined surface. Because of such a structure, the position of the bottom screw 21 is biased to the outside of the self-propelled aircraft A.
As described above, the grains flow down to the outside of the self-propelled aircraft A so as to guide the grains toward the bottom screw 21 provided at the bottom while being biased toward the outside of the self-propelled aircraft A. In this way, the portion including the bottom wall 20A formed on the inclined surface that becomes lower toward the outside in the left-right direction corresponds to an inclined portion of the lower portion of the Glen tank E.

As shown in FIG. 11, the front end of the screw shaft 21A of the bottom screw 21 protrudes forward from the front wall 20f of the tank body 20, and an intermediate shaft 22 in a lateral orientation is connected to the protruding portion via a bevel gear 21B. ing. Engine power is transmitted to the intermediate shaft 22 via the output shaft 3 a of the engine 3, the belt transmission mechanism 23, and the input shaft 24. The intermediate shaft 22 is provided at the front lower portion of the tank body 20 along the front wall 20 f of the tank body 20.
The above-described discharge clutch G is configured in a belt tension type in which the driving force of the belt transmission mechanism 23 that transmits the driving force from the engine 3 to the intermediate shaft 22 is switched between a belt tension state and a relaxed state by switching the driving force. Has been. The discharge clutch lever 18 is configured to be able to adjust the tension of the belt of the belt transmission mechanism 23, and is configured so that the power is interrupted by adjusting the belt tension.

The rear end of the screw shaft 21A of the bottom screw 21 protrudes rearward from the rear wall 20r of the tank body 20, and the axis of the screw shaft 21A coincides with the swing axis X of the unloader F.
That is, on the rear wall 20r of the tank body 20, a discharge cylinder portion 25 provided with a grain discharge port 20B for sending the grain sent from the bottom screw 21 to the unloader F is provided in a state of protruding backward. . The discharge cylinder 25 is integrally connected and fixed to the rear reinforcing plate 27 attached to the rear wall 20r so as to reinforce the periphery of the grain outlet 20B. Further, the discharge cylinder portion 25 is disposed so that the center axis thereof coincides with the axis of the screw shaft 21 </ b> A and the swing axis X of the unloader F, and an elbow portion 30 described later is fitted into the discharge cylinder portion 25. By being connected together, the entire unloader F including the elbow part 30 is configured to be swingable about the swing axis X.

  The Glen tank E, which can be swung around the vertical axis Y, is supported at the rear side by a support frame 50 described later. On the front side away from the vertical axis Y, as shown by phantom lines in FIGS. 2 and 3, a well-known guide roller 26 ( This guide roller 26 is configured to share and support the weight of the front side when the Glen tank E is in the working posture stored in the self-propelled machine A.

[Unloader]
The unloader F includes an elbow part 30 at an introduction side end corresponding to the upper side in the grain conveyance direction, and a straight tubular vertical path that forms a straight vertical conveyance path R on the lower conveyance side of the elbow part 30. The cylinder part 31 is connected.
The elbow part 30 has an introduction cylinder part 30A that is fitted to the discharge cylinder part 25 on the Glen tank E side from the rear, and a lead-out cylinder part 30B that is continuous in an attitude perpendicular thereto. The vertical cylinder part 31 is connected to the cylinder part 30B.
The vertical cylinder portion 31 includes a straight tubular discharge cylinder 34 and a discharge screw 35 disposed inside the discharge cylinder 34 so as to form a linear vertical conveyance path R therein, and a discharge side end. The part is provided with a grain outlet 36 for guiding the grain in a direction orthogonal to the longitudinal direction of the discharge cylinder 34.

The unloader F configured in this manner is configured to be switchable between a retracted posture in which the discharge side end portion is directed upward and a discharge posture in which the discharge side end portion is directed outward.
As shown in FIG. 4, in the retracted posture, the center axis Z (corresponding to the cylinder axis) of the vertical cylinder portion 31 is slightly tilted inward of the self-propelled aircraft A with respect to the vertical line. For this reason, it becomes the attitude | position which the vertical cylinder part 31 inclined to the left side by the back view. In the discharging posture, the central axis Z of the vertical cylinder portion 31 is in a posture slightly upward from the horizontal line, and the vertical cylinder portion 31 is in an inclined posture that rises to the right in rear view.

The discharge screw 35 includes a screw shaft 35A, and the screw shaft 35A is supported so as to be rotatable about the central axis Z.
A part of the screw shaft 21A of the bottom screw 21 is inserted into the introduction cylinder part 30A of the elbow part 30, and a part of the discharge screw 35 is inserted inside the lead-out cylinder part 30B of the elbow part 30. . A bevel gear mechanism (not shown) having a pair of bevel gears rotating around axes orthogonal to each other so as to transmit the driving force of the screw shaft 21A to the screw shaft 35A of the discharge screw 35 is provided inside the elbow portion 30. Yes.

From such a transmission structure, the driving force of the bottom screw 21 can be transmitted to the discharge screw 35 via the bevel gear mechanism of the elbow portion 30. The grain of the Glen tank E is conveyed from the bottom screw 21 to the discharge screw 35 and is discharged from the grain discharge port 36 at the conveyance end of the unloader F.
In the unloader F, the rotation direction of the bottom screw 21 is set counterclockwise (counterclockwise) when the Glen tank E is viewed from the rear. Therefore, when unloading the grain from the unloader F, a torque in the lifting direction that moves the unloader F toward the retracted posture acts on the vertical cylinder portion 31 of the unloader F.

[Support structure]
A support structure for supporting the Glen tank E and the unloader F will be described.
The support structure includes a support frame 50 erected on the vehicle body frame 10 and an attachment frame 40 attached to the glen tank E.

[Support frame]
As shown in FIGS. 4 to 8, the support frame 50 includes a vertical columnar portion 51 formed in a rectangular column shape by a rectangular tube material, a mounting plate 52 to the vehicle body frame 10 provided on the lower end side, and a vertical columnar portion 51. And a holding portion 53 provided at an upper end portion of the vertical columnar portion 51 and a mounting portion 53 provided at a location near the lower portion in the middle position in the vertical direction.
By vertically connecting the lower mounting plate 52 to the vehicle body frame 10, the vertical columnar portion 51 is fixed to the vehicle body frame 10 in a standing posture.
The mounting portion 53 provided at a position near the lower portion of the vertical columnar portion 51 includes a support bracket 53A configured by a channel member that is opened downward, and an annular support 53B provided on the upper surface side of the support bracket 53A. The support bracket 53A is welded to the right lateral surface of the vertical columnar portion 51 and is provided in a state of protruding to the right lateral side. The annular support 53B is welded and fixed to the upper surface side of the support bracket 53A. The upper surface of the support bracket 53A and the annular support 53B constitute a mounting portion 53 that rotatably supports a mounting frame 40 described later from below. That is, in a state where the lower end portion of the mounting frame 40 is placed on the upper surface side of the support bracket 53A, the lower end portion of the mounting frame 40 is fitted to the annular support body 53B, and the mounting frame 40 is supported from below. However, the support structure is rotatable.

In the holding support portion 55 provided at the upper end portion of the vertical columnar portion 51, as shown in FIGS. 5 to 9, the attachment pieces 55a and 55a are welded on the front and rear surfaces near the upper end portion toward the right side outward. A holding metal fitting 56 constituted by a pair of left and right first holding bodies 56A and a second holding body 56B is bolted to the mounting pieces 55a and 55a.
The first holding body 56A includes a first holding plate 56Aa that comes into contact with the outer peripheral surface of the mounting frame 40 on the side of the body, and a connecting plate that connects the front and rear ends of the first holding plate 56Aa to the mounting pieces 55a and 55a. 56 Ab. The second holding body 56B includes a second holding plate 56Ba that is in contact with the outer peripheral surface of the mounting frame 40 on the outer side of the mounting frame 40 at a position facing the first holding plate 56Aa. Bolts are connected to the plate 56Aa.
Each of the first holding plate 56 </ b> Aa and the second holding plate 56 </ b> Ba is formed in a curved shape in which a portion in contact with the outer peripheral surface of the mounting frame 40 is recessed in an arc shape along the outer peripheral surface of the mounting frame 40. In the holding state of the holding support portion 55 configured in this way, the attachment frame 40 is allowed to rotate relative to the vertical axis Y, and the horizontal movement of the attachment frame 40 is restricted.

At the upper end portion of the vertical columnar portion 51, another mounting plate 57 is welded and fixed toward the left lateral direction opposite to the right lateral outward direction where the holding support portion 55 is attached, that is, toward the inward side of the machine body. A lateral frame 58 is bolted to the mounting plate 57.
As shown in FIGS. 6, 8, and 9, the mounting plate 57 bends the plate material in a channel shape on the upper side and extends further downward from the lower end side of the portion bent in the channel shape. It has a shape having a plate portion. And it fixes by welding in the state which contact | abutted the edge part of the left-right direction of a board | plate material with the left side surface of the vertical columnar part 51 instead of the board surface which faces the front-back direction of the bent board | plate material. The reason why the mounting plate 57 is bent in this way is to increase the shape retaining strength of the mounting plate 57 itself and secure the length of the weld line to the vertical columnar portion 51 and firmly mount it.
One end side of the lateral frame 58 is bolted to the plate surface facing the front-rear direction of the mounting plate 57, and the other end side of the lateral frame 58 is against the reinforcing rib-shaped member D1 fixed to the lateral side wall D2 of the threshing device D. Bolted. Thereby, the vertical columnar part 51 is in a state where the lower end side is fixed to the body frame 10 and the upper end side is connected and fixed to the threshing device D.

[Mounting frame]
A mounting frame 40 that is rotatably supported around a vertical axis Y with respect to a support frame 50 that is erected on the body frame 10 is a length of one side of a rectangular tube material that constitutes a vertical columnar portion 51 of the support frame 50. And a cylindrical member (corresponding to a columnar body having a circular cross section) having a diameter of the same size as the above.
The mounting frame 40 is connected to the rear wall 20r of the Glen tank E by mounting brackets 41, 42, and 43 at the upper end portion, near the lower end portion, and at an intermediate portion in the vertical direction and closer to the upper end side. It is fixed.
Each mounting bracket 41, 42, 43 is formed of a rectangular tube-like member whose one side in the left-right direction is longer than the diameter of the mounting frame 40, and the mounting frame 40 moves the mounting bracket 41, 42, 43 up and down. It is welded in a state of penetrating through and fixed integrally.

Further, a place between the mounting bracket 41 near the upper end of the mounting frame 40 and the mounting bracket 42 near the upper end in the middle is rotatable by the holding support portion 55 provided at the upper end of the support frame 50. The embrace is supported.
As shown in FIG. 10B, the lower end portion of the mounting frame 40 protrudes downward by a predetermined length d1 from the lower surface of the mounting bracket 43 near the lower end portion. A ring-shaped support 53B provided on the mounting portion 53 is fitted.
At this time, the lower surface of the mounting frame 40 is slightly lifted from the upper surface of the support bracket 53A of the mounting portion 53, and the lower surface of the mounting bracket 43 near the lower end is brought into contact with the upper edge of the annular support 53B. The mounting frame 40 is supported from below.

A predetermined length d1 of a projecting portion 40a projecting downward from the lower surface of the mounting bracket 43 at the lower end of the mounting frame 40 is determined as follows. That is, as shown in FIG. 10A, the lower end surface of the mounting frame 40 is supported by the support bracket 53A in a state where the protruding portion 40a is fitted to the annular support 53B provided on the support bracket 53A of the mounting portion 53. When the glen tank E is lifted and the lower end of the mounting frame 40 is extracted from the annular support 53B, the upper part of the outer peripheral surface of the introduction cylinder 30A of the unloader F is the support bracket 53A. It is set to such an extent that it does not touch the lower edge of.
That is, the fitting allowance between the projecting portion 40a and the annular support 53B is such that the upper portion of the outer peripheral surface of the introduction cylinder portion 30A of the unloader F and the lower end of the support bracket 53A when the Glen tank E is installed at a predetermined position. It is set to be shorter than the vertical distance from the edge, and the loading cylinder part 30A of the unloader F and the lower end edge of the support bracket 53A come into contact with each other and are damaged when the grain tank E is loaded onto the vehicle body frame 10. It is configured to be avoided.
On the upper side of the mounting frame 40, as shown in FIG. 10A, the second holding plate 56Ba of the holding-in metal fitting 56 is the first holding member when the protruding portion 40a is fitted to the annular support 53B. It is in a state connected to the plate 56Aa. When the Glen tank E is lifted and the lower end portion of the mounting frame 40 is extracted from the annular support 53B, the second holding plate 56Ba is removed from the first holding plate 56Aa. By doing so, the mounting bracket 42 at the intermediate position can be lifted to a position where it does not contact the first holding plate 56Aa of the holding-in metal fitting 56. In this state, as shown in FIG. 10B, the lower end portion of the mounting frame 40 is pulled out from the annular support 53B.

The center axis of the mounting frame 40 formed of a cylindrical member is supported by the mounting frame 40 so as to be pivotable by fitting the mounting frame 40 to the annular support 53B of the mounting portion 53 on the lower side, and holding on the upper side. By being supported by the portion 55 so as to be rotatable, a vertical axis Y which is the rotation center of the Glen tank E is configured.
That is, the mounting frame 40 is configured integrally with the Glen tank E via the mounting brackets 41, 42, 43, and the center of the area in plan view of the mounting frame 40 configured by a cylindrical member and the Glen tank E The center of rotation coincides with the vertical axis Y.

The mounting frame 40 between the mounting bracket 43 near the lower end and the intermediate mounting bracket 42 is provided with a receiving portion 44 for stably maintaining the retracted posture of the unloader F.
The receiving plate 44 is welded and fixed to a mounting plate 45 having a plate surface inclined so as to become higher toward the right lateral outer side than a plane perpendicular to the vertical axis Y that is the central axis of the mounting frame 40. At the same time, a receiving plate 46 that is bolted to the mounting plate 45 extends rearward. The receiving plate 46 is provided with an arcuate curved recess 46A that follows the shape of the outer peripheral surface of the vertical cylindrical portion 31 of the unloader F. Therefore, when the unloader F is in the retracted posture, the outer peripheral surface of the unloader F on the inward side of the unloader F comes into contact with the curved recess 46A of the receiving plate 46, and further the in-machine state from the retracted posture of the unloader F is reached. It is configured such that tilting toward the side and movement in the front-rear direction are prevented.

As shown in FIG. 5 to FIG. 9, a channel-shaped fixed side stopper piece 42 </ b> A that is open on the right side is welded to the right side surface of the intermediate mounting bracket 42. An intermediate portion of the vertical cylinder portion 31 of the unloader F is welded and fixed with a movable side stop piece 31A having an L-shaped cross section that is positioned so as to overlap a part of the upper side of the fixed side stop piece 42A in the retracted position of the unloader F. ing. The fixed side stopper piece 42A on the mounting bracket 42 side is formed with two through holes 42Aa and 42Ab separated in the front-rear direction, and the movable side stopper piece 31A on the vertical tube portion 31 side is provided with the fixed side stopper piece 42A. One through hole 31Aa is formed at a position that coincides with one of the two through holes 42Aa and 42Ab.
Therefore, as shown in FIG. 8, in the retracted position of the unloader F, one of the two through holes 42Aa, 42Ab of the fixed side stopper piece 42A on the mounting bracket 42 side and the movable side stopper piece on the vertical cylinder portion 31 side are provided. When one stop pin 47 is inserted through one through hole 31Aa formed in 31A (FIG. 8 shows a state in which the stop pin 47 is inserted into the through hole 42Aa), the vertical cylinder of the unloader F The unloader F can be maintained in a locked state in which the unloader F is fixed to the mounting frame 40 in a posture in which the portion 31 is received by the receiving portion 44. The stop pin 47, the movable side stop piece 31A, and the fixed side stop piece 42A constitute a lock mechanism for regulating the position of the unloader F.
When the retaining pin 47 is extracted, the state of regulating the position of the unloader F with this lock mechanism is released. Then, if the extracted stop pin 47 is inserted into another through hole 421Ab of the fixed side stop piece 42A, which is not overlapped with the movable side stop piece 31A in FIG. 8, it is extracted when the locked state is released. The unloader F can be freely undulated and swung while the stop pin 47 is held in the airframe.

  As shown in FIG. 4, the mounting frame 40 is disposed on the upper side of the mounting portion 53 that extends toward the upper side of the introduction cylinder portion 30 </ b> A of the unloader F with respect to the support frame 50. In view, it is positioned so as to substantially overlap with the vertical cylindrical portion 31 in the retracted position. Thereby, the attachment frame 40 and the unloader F can be made to approach or overlap in the lateral width direction of the self-propelled aircraft A, and the space in the left-right direction for arranging them can be saved.

As shown in FIGS. 1 and 5, at the upper end of the mounting frame 40, when a Glen tank E is present at the work position on the self-propelled machine A, a work lamp 49 that irradiates the right lateral outward of the machine widely. Is attached.
Since the work light 49 is provided at this position, when performing the grain discharging operation in a discharging posture in which the unloader F is laid down laterally outward, a favorable working environment is lit in light of the portion to be discharged from the unloader F. It is obtained.
Further, as shown in FIGS. 6 and 10, an alarm for notifying that the self-propelled aircraft A is in the reverse traveling state is attached to the mounting plate 57 for connecting the lateral frame 58 at the upper part of the mounting frame 40. A buzzer 59 is attached.

[Oscillation drive device]
A swing drive device that swings the unloader F up and down will be described.
The swing drive device is constituted by a double-acting hydraulic cylinder 60 that is driven to extend and contract. As shown in FIGS. 4 to 6, the hydraulic cylinder 60 is disposed across the Glen tank E including the mounting frame 40 that is rotatably supported by the support frame 50 and the unloader F.
That is, the upper end portion of the cylinder tube 61 positioned on one end side of the hydraulic cylinder 60 is connected to the Glen tank E side, and the lower end portion of the piston rod 62 positioned on the other end side is connected to the unloader F side. Hereinafter, the end on the cylinder tube 61 side is referred to as a first end, and the end on the piston rod 62 side is referred to as a second end.

  The first end of the cylinder tube 61 is connected to an intermediate mounting bracket 42 extending rearward from the rear wall 20r of the Glen tank E. A downwardly open channel-like connecting member 48 is welded and fixed to the mounting bracket 42 on the lower surface side, and is swingably connected around a connecting pin 63 provided in the connecting member 48 in the front-rear direction.

The second end portion, which is the end portion of the piston rod 62 located on the other end side of the hydraulic cylinder 60, can swing around the connecting pin 64 with respect to the connecting bracket 39 provided on the vertical cylinder portion 31 of the unloader F. It is connected to. The connecting bracket 39 is attached to a cylindrical reinforcing member 38 that is externally fitted to a portion adjacent to the elbow portion 30 in the vertical cylinder portion 31 of the unloader F and is fixed by welding.
The hydraulic cylinder 60 arranged in this way has a first end connected to the mounting frame 40 at an upper position and an inward side of the self-propelled aircraft A, and a second end connected to the unloader F. Is located at the lower side and on the laterally outer side of the self-propelled aircraft A from the first end.

As shown in FIG. 5, the vertical axis Y of the mounting frame 40 erected on the rear side of the grain tank E and the central axis Z of the vertical cylinder portion 31 of the unloader F are parallel to each other as viewed from the side. The unloader F is located at a predetermined small interval in the front-rear direction with respect to the mounting frame 40, and the hydraulic cylinder 60 is disposed in a space having this small interval, and the vertical axis Y of the mounting frame 40, A center line CL parallel to the center axis Z of the vertical cylinder portion 31 of the unloader F in a side view is provided.
That is, the connecting member 48 on the mounting frame 40 side is located rearward of the rear end edge of the outer peripheral surface of the mounting frame 40 in a side view, and the connecting bracket 39 on the unloader F side is a vertical cylinder of the unloader F in a side view. The front end of the outer peripheral edge of the portion 31 is located on the front side. The hydraulic cylinder 60 connected to the connecting member 48 and the connecting bracket 39 has a center line CL parallel to or substantially parallel to the vertical axis Y and the center axis Z in side view. It is attached.
The swing axis X of the unloader F is orthogonal to the vertical axis Y, the center axis Z, and the center line CL. Therefore, when the unloader F swings up and down as the hydraulic cylinder 60 expands and contracts, the possibility that the hydraulic cylinder 60 interferes with the unloader F and the mounting frame 40 can be avoided.

As shown in FIGS. 4 and 6, in the rear view, the vertical cylinder portion 31 of the unloader F has its central axis Z with respect to the vertical axis Y of the mounting frame 40 erected on the rear side of the Glen tank E. Is in the retracted position of the unloader F and is received by the receiving portion 44 while being slightly tilted inward of the self-propelled aircraft A.
In this retracted posture, the center line CL of the hydraulic cylinder 60 is provided in a state of being inclined more toward the inward side of the self-propelled machine body A than the inclination of the center axis Z of the vertical cylinder portion 31 of the unloader F. Yes.
That is, the connecting member 48 on the mounting frame 40 side to which the first end of the hydraulic cylinder 60 is connected is located on the lower surface side of the intermediate mounting bracket 42 connected to the mounting frame 40 in the rear view, and the connecting pin 63 is located near the vertical axis Y of the mounting frame 40. The unloader F-side connecting bracket 39 to which the second end of the hydraulic cylinder 60 is connected protrudes to the right side of the outer peripheral surface of the unloader F in rear view, and the connecting pin 64 is provided on the outer peripheral surface of the unloader F. It is located on the right side of the right edge.
Further, the swing axis X of the unloader F is positioned laterally outward of the self-propelled machine body A from the vertical axis Y of the mounting frame 40, and the unloader F is inclined toward the body side in the retracted posture. The inclination angle of the central axis Z of the vertical cylinder portion 31 of the unloader F with respect to the vertical line is smaller than the inclination angle of the hydraulic cylinder 60. For this reason, the inclination of the hydraulic cylinder 60 is inclined more than the inclination of the unloader F supported by the receiving portion 44.

The inclination of the hydraulic cylinder 60 sets the expansion / contraction direction of the hydraulic cylinder 60 with a force line that is as close as possible to the direction perpendicular to the central axis Z of the vertical cylindrical portion 31 of the unloader F when the unloader F is smoothly raised and swung. Useful to be. In addition, since a connecting member 48 that protrudes to the right side from the right end edge of the outer peripheral surface of the mounting frame 40 and is connected to the first end of the hydraulic cylinder 60 is provided, the connecting member 48 is connected to the mounting frame, for example. This is effective in reducing the length of the hydraulic cylinder 60 as much as possible as compared with the case where the outer peripheral surface of the outer peripheral surface 40 protrudes to the left side of the left edge.
The second end of the hydraulic cylinder 60 is connected to a connecting bracket 39 that is mounted on a cylindrical reinforcing member 38 that is externally fitted at a location adjacent to the elbow 30 in the vertical cylinder 31 of the unloader F. . This is because the rotation radius of the movement locus r1 of the second end portion around the swing axis X of the unloader F is reduced by connecting at a position closest to the elbow portion 30 in the vertical cylinder portion 31, and hydraulic pressure is reduced. This is effective in reducing the amount of expansion and contraction of the cylinder 60.

As shown in FIG. 4, the hydraulic cylinder 60 arranged in this way has a second end that is more than a line segment L1 that connects the connecting pin 63 on the first end side and the swing axis X of the unloader F. The position of the connecting pin 64 is located on the lateral outer side of the self-propelled aircraft A. Therefore, the hydraulic cylinder 60 is configured to be most contracted in the retracted posture and extended most in the discharge posture.
The unloader F is in the process of shifting from the discharging posture to the retracting posture, and the self-propelled machine body moves from a state where the unloader F stands upright on the vertical axis of the swing axis X of the unloader F beyond the position on the vertical line of the swing axis X. The storage posture is slightly tilted inward of A.

In the hydraulic cylinder 60 that swings and drives the unloader F, pressure oil is supplied to the oil chamber below the cylinder tube 61 in the upward swinging process from the discharge posture until the unloader F stands upright on the vertical line of the swing axis X. Supply. At the same time, the pressure oil is discharged from the upper oil chamber so that the piston rod 62 can move in the contraction direction. At this time, the weight in the direction in which the unloader F tries to return to the discharge posture side always acts on the oil chamber below the hydraulic cylinder 60, and when the unloader F stands upright, the weight in that direction becomes zero.
In the swing stroke in which the unloader F moves to the retracted position beyond the position where the unloader F stands upright on the vertical axis of the swing axis X, the weight of the unloader F causes the piston rod 62 to move as the unloader F tilts toward the retracted position. It acts to push up in the shrinking direction.
Therefore, there is a possibility that the operating speed of the hydraulic cylinder 60 is increased in the swinging stroke to shift to the retracted posture, but by controlling the oil discharge speed from the oil chamber (not shown) on the upper side of the cylinder tube 61. The operating speed of the hydraulic cylinder 60 can be adjusted.

In the downward swing from the state where the unloader F is in the retracted position until the unloader F stands upright on the vertical line of the swing axis X, the pressure oil is supplied to the upper oil chamber of the cylinder tube 61. At the same time, pressure oil is discharged from the lower oil chamber (not shown) to allow the piston rod 62 to move in the extending direction.
At this time, the weight in the direction in which the unloader F tries to return to the storage posture side always acts on the oil chamber above the hydraulic cylinder 60, and when the unloader F stands upright, the weight in that direction becomes zero.
In the swing stroke in which the unloader F moves to the discharge posture beyond the position where the unloader F stands upright on the vertical axis of the swing axis X, the weight of the unloader F causes the piston rod 62 to move as the unloader F tilts toward the discharge posture. It acts to pull out in the extension direction.
Therefore, there is a possibility that the operating speed of the hydraulic cylinder 60 is increased in the swinging stroke that shifts to the discharging posture, but the operation of the hydraulic cylinder 60 is controlled by controlling the oil discharging speed from the oil chamber below the cylinder tube 61. The speed can be adjusted.

If the hydraulic cylinder 60 is a single-acting type, the unloader F having a structure in which the hydraulic cylinder 60 is tilted slightly toward the inner side of the self-propelled aircraft A as described above cannot be driven smoothly. There is no such inconvenience due to the dynamic type.
That is, if the hydraulic cylinder 60 is a single-acting type and has a structure that supplies pressure oil to the lower oil chamber of the cylinder tube 61, pressure oil cannot be supplied to the upper oil chamber. From the state in which the unloader F is in the retracted position, it is impossible to perform the downward swing until the unloader F stands upright on the vertical line of the swing axis X.
If the hydraulic cylinder 60 is of a single-acting type and has a structure that supplies pressure oil to the upper oil chamber of the cylinder tube 61, pressure oil cannot be supplied to the lower oil chamber. From the state in which the unloader F is in the discharging posture, the ascending swing cannot be performed until the unloader F stands upright on the vertical line of the swing axis X.
Since the hydraulic cylinder 60 of the present invention is of the backward moving type, the pressure oil can be supplied to the oil chamber on either the upper side or the lower side of the cylinder tube 61. Therefore, the unloader F having a structure in which it is tilted slightly toward the inward side of the self-propelled aircraft A can be driven to swing without any trouble.

[Fuel tank]
As shown in FIGS. 1 to 4 and FIG. 6, the fuel tank 4 is disposed on the vehicle body frame 10 at the rear end of the self-propelled aircraft A at a position corresponding to between the grain tank E and the threshing device D. It is installed.
The main body portion 70 of the fuel tank 4 is formed in a substantially rectangular box shape as a whole, and is provided with an oil supply port 71 that opens toward the upper rear side at the rear end side upper portion.
As shown in FIGS. 1 to 3, in the front-rear direction, the front end side of the main body portion 70 is located near the rear end of the second reduction device 19 of the threshing device D, and the rear end side is closer to the rear wall 20 r of the Glen tank E. Is also extended to the rear side, and is disposed so as to extend beyond the rear end of the vehicle body frame 10 and extend over substantially the same position as the rear end of the unloader F in the retracted posture.
In the left-right direction, as shown in FIGS. 2 to 4 and 6, about half of the right side on the front side sinks into the lower space of the tank body 20 formed by the inclined bottom wall 20 </ b> A of the Glen tank E. In the state, it is disposed between the threshing device D and the Glen tank E.
In the vertical direction, as shown in FIGS. 4 and 6, the upper end portion on the right side of the main body portion 70 is inclined with respect to the Glen tank E in the working posture accommodated on the self-propelled aircraft A. It is arranged in a state of being in close proximity to a position close to a limit that can avoid interference with the bottom wall 20A.

  Further, as shown in FIGS. 1 to 5, the rear end side of the main body portion 70 is brought into contact with another object from the lower side or the rear side by a guard member 80 connected to the rear end portion of the vehicle body frame 10. Is configured to be suppressed. That is, the guard member 80 is configured by a pipe member formed in a U shape in a plan view, and the rear end side projects rearward from the rear end portion of the fuel tank 4 and the unloader F in the retracted posture. The fuel tank 4 is provided in a range from the left side to the right side of the vertical cylinder part 31 of the unloader F in the retracted position from the left side to the right side.

Then, as shown in FIG. 1, the position of the rear end side of the fuel tank 4 is set, for example, as 30 degrees as the maximum inclination angle α allowed when the self-propelled aircraft A crosses the ridge. Even when the self-propelled aircraft A is tilted backward to the maximum tilt angle α, it is set so as to avoid a direct collision with the traveling ground.
That is, as shown in FIG. 1, the rear end of the fuel tank 4 so that the line segment connecting the rear end of the main body portion 70 and the rear end of the crawler traveling device 1 substantially coincides with the line segment indicating the maximum inclination angle α. The side position is set. In this way, the position of the rear end side of the fuel tank 4 is extended to the limit position where the collision with the traveling ground can be avoided when the self-propelled aircraft A tilts to the rearward tilt posture up to the maximum tilt angle α. Thus, the capacity of the fuel tank 4 can be further increased in the space on the vehicle body frame 10.
In addition, a guard member 80 extends to the rear of the fuel tank 4 below the position on the rear end side of the fuel tank 4. An angle β formed by a line segment connecting the rear end of the guard member 80 and the rear end of the crawler traveling device 1 is smaller than the maximum inclination angle α. Therefore, even if the self-propelled aircraft A tries to tilt backward beyond the maximum inclination angle α or there is a convex portion on the ground side, the guard member 80 comes into contact with the ground first, and the self-propelled aircraft A Since the backward tilt and the contact of the fuel tank 4 with the convex portion are suppressed, it is easy to avoid contact of the fuel tank 4 with another object.

As shown in FIGS. 3, 6, and 8, the main body portion 70 of the fuel tank 4 is detachably fixed to the vehicle body frame 10 at two locations in the front-rear direction by band-plate-like attachment bands 72.
The band-shaped attachment band 72 extends along the outer peripheral surface of the main body portion 70 from the lower position on one lateral side of the main body portion 70 of the fuel tank 4 and beyond the upper surface side of the main body portion 70. It is formed in a gate shape so as to reach the position when viewed in the front-rear direction.
One end side of the mounting band 72 is bent laterally outward and is provided as a bent piece 72a having a bolt insertion hole. On the other end side of the mounting band 72, a locking member 72b having a hole through which a bolt can be inserted from above is welded and fixed.
Further, although not shown in the figure, the connecting body 72 is connected to the body frame 10 at a position facing the bent piece 72a on the one end side of the mounting band 72 and the body frame 10 at a position facing the locking member 72b on the other end side. Retaining nuts capable of screwing 73a and 73b are fixed by welding. This locking nut is welded to the back side of the upper piece of the channel-shaped frame material constituting the vehicle body frame 10.

Therefore, at one end side of the mounting band 72, the connecting bolt 73a is inserted into a bolt insertion hole provided in the bent piece 72a and is screwed with a set nut on the vehicle body frame 10 side, thereby fixing the one end side. can do.
On the other end side of the mounting band 72, another mounting bolt 73b is passed through the bolt insertion hole of the locking member 72b and screwed into the locking nut on the vehicle body frame 10 side to tighten, thereby tightening the mounting band 72. The fuel tank 4 can be firmly fixed.

  As shown in FIGS. 2 to 4 and 8, a deck plate 81 provided on the upper part of the right side wall D <b> 2 of the threshing device D exists on the upper side of the fuel tank 4. The upper side of the space between the threshing device D and the Glen tank E including the tank 4 is covered.

[Jack receiving]
As shown in FIGS. 12 and 13, leg frames 10 </ b> A and 10 </ b> A for supporting the track frame 1 </ b> A of the left and right crawler travel devices 1 at the lower part of the vehicle body frame 10 are provided at two front and rear positions of the vehicle body frame 10. Yes.
The two leg frames 10A and 10A at the front and rear are connected by two connecting plates 10B that are in contact with the front and rear surfaces of the leg frames 10A and 10A, respectively.
A jack receiving plate 90 is welded and fixed to the lower end side of the two connecting plates 10B described above over the connecting plates 10B on both the front and rear sides. The jack receiving plate 90 includes a bent portion 90a that is bent downward on the left and right ends of a flat plate body.

The jack receiving plate 90 has a length in the left-right direction that is close to the distance in the left-right direction at the upper ends of the left and right leg frames 10A, 10A, but the length of the welding line in the left-right direction with respect to the connecting plate 10B is as follows. However, it does not extend over the entire length in the left-right direction, but only a part of the central portion in the left-right direction is welded, as indicated by hatching in the drawing.
This is to avoid the influence of distortion caused by heat or the like during welding of the jack receiving plate 90 to the connecting plate 10B from reaching the welded portion between the leg frames 10A and 10A and the connecting plate 10B.

  By providing the jack receiving plate 90 configured in this way, as shown in FIG. 12, when jacking up with a sleeper 92 or the like placed between the jack 91 and the connecting plate 10B, the sleeper 92 is It is useful in that it is easy to avoid a situation where it breaks. Further, the bent portions 90 a on both ends of the jack receiving plate 90 prevent misalignment when the jack 91 is mounted on the end portion of the jack receiving plate 90 when the jack 91 lifts the one track frame 1 A side. belongs to.

[Other Embodiment 1]
In the embodiment, as shown in FIGS. 3, 4, 6, and 8, the fuel tank 4 is illustrated as having a structure in which the entire main body portion 70 is formed in a substantially rectangular box shape. The fuel tank 4 of the invention is not limited to such a structure.
For example, it may be configured as shown in FIGS.

In this structure, as shown in FIGS. 14 and 15, the fuel tank 4 is provided with an upward surface 74 </ b> A in a horizontal or substantially horizontal posture as a surface constituting the upper wall of the main body portion 70 and a lower portion of the Glen tank E. An outwardly inclined surface 74B along the bottom wall 20A corresponding to the inclined portion of the narrowed portion is formed over substantially the entire length in the front-rear direction. The outwardly inclined surface 74B is set to an inclination angle that is parallel or substantially parallel to the inclination of the bottom wall 20A corresponding to the inclined portion of the lower constriction provided in the lower part of the Glen tank E. The upward surface 74A and the inclined surface 74B are distributed to the left and right across the virtual dividing line TCL1 at the center position in the left-right direction so as to cover the length range of about 1/2 each of the main body portion 70 in the left-right direction. It is formed in a state.
On the upward surface 74A, a fuel filler port 71 is erected in a rearward upward direction at a location near the rear end. Further, as shown in FIGS. 16 and 17, a breather 75 for venting air in the vicinity of the virtual dividing line TCL2 at the center position in the front-rear direction of the upward surface 74A, along with the increase in internal pressure in the tank, A fuel return pipe 76 to which surplus fuel from the engine 3 is returned is connected. The breather 75 and the fuel return pipe 76 have an upward surface 74A at a position corresponding to an intermediate position of the upper wall in the left-right direction so that it is close to the center of the area of the fuel tank 4 in a plan view. Is formed.

In the fuel tank 4, the upward surface 74 </ b> A and the outwardly inclined surface 74 </ b> B form a surface constituting the upper wall of the main body portion 70. The inclined surface 74B and the rising wall surface 74C connected to the lower end of the inclined surface 74B serve as a lateral wall located on the side close to the Glen tank E in the main body portion 70 of the fuel tank 4. Thus, the inclined surface 74B is also a part of the upper wall of the fuel tank 4 and a part of the lateral wall.
The upper end of the rising wall surface 74C connected to the lower end of the inclined surface 74B is the upper side of the lower end of the Glen tank E among the lateral walls located on the side closer to the Glen tank E of the fuel tank 4 configured in this manner. The bottom wall 20 </ b> A corresponding to the inclining portion of the ball is provided at a height position substantially the same as the middle height position.
Thus, although not shown, a filter device for the fuel tank 4 is disposed between the rising wall surface 74C of the fuel tank 4, the lower half side of the bottom wall 20A of the Glen tank E, and the upper surface of the vehicle body frame 10. For example, a space that can be used for arranging the apparatus is formed.

  A discharge port 77 for discharging the fuel oil in the fuel tank 4 is provided in the bottom wall portion of the main body portion 70. As shown in FIGS. 16 and 17, the position where the discharge port 77 is provided is a position corresponding to or near the center of the area of the bottom surface 74 </ b> D inside the fuel tank 4. That is, the area center of the bottom surface 74D exists at or near the intersection of the virtual dividing line TCL1 at the center position in the left-right direction and the virtual dividing line TCL2 at the center position in the front-rear direction. The bottom surface 74D is opened at a position including or near the position.

As shown in FIGS. 16 and 17, the breather 75, the fuel return pipe 76, and the discharge port 77 are all disposed at positions close to the center of the area of the fuel tank 4 in plan view. There is little possibility that the functions of the breather 75, the fuel return pipe 76, and the discharge port 77 are impaired due to the posture change of the traveling machine body A.
That is, if the breather 75 and the fuel return pipe 76 are provided near the end on the front end side or the rear end side of the fuel tank 4, as shown in FIG. 17, the self-propelled aircraft A is inclined in the front-rear direction. Thus, when the fuel tank 4 is inclined in the front-rear direction, the breather 75 and the fuel return pipe 76 are more likely to be positioned lower than the liquid level FL1 when the liquid level FL1 is high. In comparison, if the breather 75 and the fuel return pipe 76 are disposed at positions close to the center of the area of the fuel tank 4 in plan view, it is advantageous in that it is easy to avoid such a situation. is there.
Further, if the discharge port 77 is provided near the end on the front end side or the rear end side of the fuel tank 4, as shown in FIG. When 4 is inclined in the front-rear direction and the liquid level FL2 is low, the discharge port 77 may be exposed above the liquid level FL2 and fuel oil in the fuel tank 4 may not be discharged. Compared to this, it is advantageous in that the occurrence of such a situation is easily avoided when the fuel tank 4 is disposed at the center of the area of the bottom surface 74D of the fuel tank 4 or in the vicinity thereof.

  Although the inclination of the fuel tank 4 due to the attitude change of the self-propelled aircraft A as described above occurs not only in the front-rear direction but also in the left-right direction, all of the breather 75, the fuel return pipe 76, and the discharge port 77 are connected to the fuel tank 4. Therefore, even if the fuel tank 4 is tilted in the left-right direction due to a change in the attitude of the self-propelled aircraft A, the breather 75, the fuel The functions of the return pipe 76 and the discharge port 77 are less likely to be impaired.

This fuel tank 4 is not a rectangular box shape as shown in FIGS. 4 and 6, but corresponds to an inclined portion with a narrowed portion provided at the lower part of the Glen tank E as shown in FIGS. The fuel tank 4 has an inclined surface 74B that faces the bottom wall 20A and follows the inclination of the bottom wall 20A. The shape is such that the corner of the portion facing the bottom wall 20A is cut off obliquely.
This inclined surface 74B portion is provided so as to sink under the bottom wall 20A of the Glen tank E, and the upward surface 74A portion includes a lateral side wall D2 on the Glen tank E side in the threshing device D and a threshing device D in the Glen tank E. The refueling port 71 located between the lateral side wall and projecting upward from the upward surface 74A is also a lateral wall D2 on the grain tank E side in the threshing device D and the lateral side on the threshing device D side in the grain tank E. It is provided so as to be positioned between the side walls (see FIG. 14).
And as for the fuel tank 4, the right side of the 2nd reduction | restoration apparatus 19 with which the horizontal wall facing the threshing apparatus D side was attached to the lateral wall D2 by the side of the grain tank E in the threshing apparatus D is shown. It arrange | positions in the state located near the side wall D2 by the side of the grain tank E in the threshing apparatus D rather than an end. Further, the entire fuel tank 4 is located on the rear side of the second reduction device 19 in a range extending from the rear end side of the self-propelled aircraft A to the vicinity of the rear end portion of the second reduction device 19. The fuel tank 4 arranged in this way is arranged so as to overlap with the second reduction device 19 when viewed in the front-rear direction.
As shown in phantom lines in FIG. 14, the outer portion of the fuel tank 4 has a vertical height even when the closest approach distance to the bottom wall 20A of the Glen tank E is the same as that of the rectangular tank fuel tank 4 described above. And the width in the left-right direction is one size larger than that of the rectangular box-shaped fuel tank 4, and the entire volume is increased even if the length in the front-rear direction does not change.

As shown in FIGS. 15 to 17, a transparent gauge tube 78 is provided outside the rear surface 74 </ b> E of the fuel tank 4 to connect the upper part and the bottom part of the fuel tank 4.
Due to the presence of the gauge pipe 78, the remaining amount of fuel in the fuel tank 4 can be visually confirmed from the rear side of the self-propelled aircraft A.
In this embodiment, the virtual dividing line TCL1 at the center position in the left-right direction is set so that the upward surface 74A and the inclined surface 74B extend in the left-right direction approximately in half the length of the main body portion 70. Although the thing of the structure formed in the state distributed on either side on both sides was illustrated, it is not restricted to this. For example, the lateral width of the upward surface 74A is wider than the lateral width of the inclined surface 74B, or conversely, the lateral width of the inclined surface 74B is wider than the lateral width of the upward surface 74A. You may do it.
Further, the position of the breather 75, the fuel return pipe 76, and the discharge port 77 is not limited to the position close to the center of the area of the fuel tank 4 in plan view, and may be disposed at an appropriate position.
Other configurations may be the same as those in the above-described embodiment.

[Second embodiment]
18 and 19 show, as another embodiment, a body frame 10 portion of a combine in which a linear body mounting plate 82 is provided on the body frame 10.
In this structure, three plate members 83 (corresponding to ridge plate portions) that are long in the front-rear direction are provided side by side on the body frame 10 within the interval between the opposing locations of the threshing device D and the Glen tank E. A linear body mounting plate 82 is provided.
As shown in FIGS. 18 and 19, the linear body mounting plate 82 is provided with plate members 83 each having a mountain shape in cross-section with a small distance d2 therebetween in the left-right direction.
In the linear body mounting plate 82, a recessed portion 84 is formed by an inclined surface 83 a between adjacent plate members 83. A fuel supply pipe 85a and a conductive cable 85b as the linear body 85 are disposed in the recessed portion 84 in a state of being dropped. And the bottom part of the recessed part 84 is provided with the foreign substance drop port 84a to the downward side by the small space | interval d2 formed between each board | plate material 83 adjacent.

Therefore, it becomes possible to drop the foreign matter from the bottom of the recessed portion 84 for stably supporting the linear body 85, and there is an advantage that the tendency of the foreign matter to accumulate on the bottom of the recessed portion 84 can be reduced. .
In addition, the cross-sectional shape of each plate material 83 constituting the linear body mounting plate 82 is not limited to the mountain shape as described above. For example, an appropriate shape such as a half arc shape that protrudes upward or a channel shape with a downward opening can be adopted, but the recessed portion 84 formed between the adjacent plate members 83 is provided. It is desirable to have a slope with a lower constriction. Further, the small interval d2 may be set to an appropriate size according to the size of the linear body 85 so that dust or the like can be easily dropped without dropping the linear body 85.
Other configurations may be the same as those in the above-described embodiment.

[3 of another embodiment]
FIG. 20 shows another embodiment of the linear body mounting plate 82.
This linear body mounting plate 82 has an engagement hole 83b formed on a slope 83a of a plate member 83 having a mountain-shaped cross section. The linear body 85 is held and supported by a fixture 86 made of a band-shaped elastic material such as a rubber band.
The fixture 86 is provided with a locking body 86a configured to be engageable with and disengageable from an engagement hole 83b formed on the slope of the plate member 83, and the locking body 86a is engaged with the engagement hole 83b. Thus, the linear body 85 can be reliably latched and supported at the midway position of the inclined surface 83a of the plate member 83 located on one side of the recessed portion 84.
Thus, when the linear body 85 is locked and supported at a midway position on the slope 83 a of the plate 83 located on one side of the recessed portion 84, the linear body 85 and the plate 83 positioned on the other side of the recessed portion 84 are supported. This is advantageous in that a gap is generated between the inclined surface 83a and the foreign matter more easily moves to the foreign matter dropping port 84a.
Other configurations may be the same as those in the above-described embodiment.

[4 of another embodiment]
FIG. 21 shows another embodiment of a conventional combine.
This ordinary combine is provided with a driving unit B and a pre-cutting processing device C at the front position of the self-propelled machine A, and a full-throw-in type threshing device into which cereals cut by the pre-cutting processing device C are fed. D and a Glen tank E (corresponding to a grain storage part) for storing the grain supplied from the threshing device D are provided in the rear part of the self-propelled aircraft A.
Glen tank E has a working posture (posture shown by a solid line in FIG. 21) housed in self-propelled aircraft A by turning around vertical axis Y2 in a vertical posture at the rear position of self-propelled aircraft A, and the self-propelled aircraft. It is supported in a switchable manner to an inspection posture (posture indicated by a virtual line in FIG. 21) projecting laterally from A.

The unloader F provided at the rear part of the Glen tank E includes a vertical conveying cylinder 28 that conveys the grain upward, and a horizontal conveying cylinder 29 that conveys the grain in the horizontal direction connected to the upper end of the vertical conveying cylinder 28. And the grain is discharged from the conveyance end portion of the horizontal conveyance cylinder 29.
The horizontal transfer cylinder 29 is configured to be pivotable and swingable about the cylinder axis of the vertical transfer cylinder 28, and the cylinder axis of the vertical transfer cylinder 28 is the vertical orientation that is the swing axis of the Glen tank E. Is coincident with the vertical axis Y2.

The fuel tank 4 is located on the vehicle body frame 10 at a location corresponding to the rear end portion of the self-propelled aircraft A and between the grain tank E and the threshing device D, and in the left-right direction from the location where the vertical axis Y2 is present. It arrange | positions so that it may be located in the inner side of the self-propelled body A. Therefore, even if the Glen tank E and the unloader F are swung around the vertical axis Y2 in the vertical orientation, it is easy to avoid the possibility that the Glen tank E and the unloader F that are operated to rotate interfere with the fuel tank 4. Can do.
Other configurations may be the same as those in the above-described embodiment.

[5 of another embodiment]
In the embodiment, the structure using the hydraulic cylinder 60 is shown as the swing drive device for swinging the unloader F up and down, but the present invention is not limited to this.
For example, as a swing drive device, a wire connected to the vertical cylinder portion 31 of the unloader F may be wound up by a winch, and the winch may be driven in the forward and reverse directions by an electric motor. Moreover, it does not matter even if it does not use the swing drive device.
Other configurations may be the same as those in the above-described embodiment.

[6 of another embodiment]
In the embodiment, the hydraulic cylinder 60 as a swing drive device for swinging the unloader F up and down is disposed across the mounting bracket 42 and the unloader F extending from the grain tank E. However, the present invention is not limited to this structure. Is not something
For example, an appropriate configuration may be employed, such as disposing the hydraulic cylinder 60 across a dedicated member provided on the mounting frame 40 and the unloader F separately from the mounting bracket 42.
Other configurations may be the same as those in the above-described embodiment.

[7 of another embodiment]
In the embodiment, the structure in which the receiving portion 44 for maintaining the storage posture of the unloader F is provided in the mounting frame 40 is shown, but the present invention is not limited to this.
For example, the receiving portion 44 may be formed of a member different from the attachment frame 40 and provided at a different location on the self-propelled machine body A instead of the attachment frame 40.
Other configurations may be the same as those in the above-described embodiment.

[8 of another embodiment]
In the embodiment, the discharge side end portion of the unloader F is illustrated as being configured to tilt toward the inward side of the self-propelled aircraft A in the retracted posture, but is not limited thereto.
For example, in the retracted posture of the unloader F, the discharge side end portion may stand upright on the swing axis X of the unloader F, or may be configured to slightly tilt to the outside of the self-propelled aircraft A.
Other configurations may be the same as those in the above-described embodiment.

[9 of another embodiment]
In the embodiment, the return-acting type hydraulic cylinder 60 that extends and contracts is illustrated, but the present invention is not limited to this, and a single-acting hydraulic cylinder 60 may be configured. In this case, when the discharge-side end portion of the unloader F is configured to tilt toward the inward side of the self-propelled machine body A in the retracted posture, the unloader F in the retracted posture is positioned upright on the swing axis X. It is desirable to provide an urging spring that returns to
Other configurations may be the same as those in the above-described embodiment.

[10 of another embodiment]
In embodiment, although the thing of the structure using the Glen tank E with the unloader F was illustrated as a grain storage part, it is not restricted to this. For example, regarding a configuration other than the configuration related to the unloader F, a combine having a structure using a hopper having a take-out opening in the lower portion without using the unloader F or the Glen tank E may be adopted. In this case, what is necessary is just to be comprised so that a bagging operation | work etc. may be performed so that a grain may be taken out by opening and closing the taking-out opening of a hopper artificially.
Other configurations may be the same as those in the above-described embodiment.

  The present invention can be applied not only to a general combine but also to a self-removing combine.

4 Fuel Tank 10 Body Frame 19 Second Reduction Device 20A Inclined Part 21 Bottom Screw
30 Elbow 31 Vertical cylinder portion 40 Mounting frame 50 Support frame 60 Oscillating drive device 71 Refueling port 74A Upward surface 74B Inclined surface 74C Rising wall portion 74D Bottom surface 75 Breather 76 Fuel return pipe 77 Discharge port 80 Guard member 82 Linear Body mounting plate 83 Projection strip part 84a Contaminant drop opening d2 Small interval A Self-propelled machine D Threshing device D2 Side wall E Grain storage part (Glen tank)
F Unloader Y2 Vertical axis

Claims (31)

While the threshing device and the grain storage part are arranged side by side on the body frame,
A fuel tank is arranged to enter the interval between the opposing locations of the threshing device and the grain storage unit ,
A guard member for regulating contact of other objects from the lower side with respect to the fuel tank is provided in a state of projecting rearward from a portion corresponding to the threshing device in a rear end portion of the body frame,
The fuel tank is provided with a fuel filler opening at a rear portion of the fuel tank facing rearward and adjacent to the guard member in plan view . The combine according to claim 1, wherein the fuel filler port is provided in a state of overlapping with an existing range of the guard member in a plan view. An unloader elbow part for discharging the grain from the grain storage part is provided behind the grain storage part,
The guard member regulates contact of other objects from the lower side with respect to the elbow part,
The combine according to claim 1 or 2, wherein the elbow portion is provided in a state overlapping with an existing range of the guard member in a plan view. The combine according to any one of claims 1 to 3, wherein the fuel tank is disposed on the rear side of the fuselage in the interval. The combine according to any one of claims 1 to 4, wherein the fuel tank is placed and supported on the vehicle body frame. The combine according to any one of claims 1 to 5 , wherein the fuel tank includes a protruding portion protruding rearward from a rear end portion of the threshing device on a rear end side thereof. The combine according to any one of claims 1 to 6 , wherein the fuel tank includes a protruding portion that protrudes rearward from a rear end portion of the grain storage portion on a rear end side thereof. The combine of Claim 7 with which the unloader which discharges | emits a grain from the said grain storage part is arrange | positioned in the outer side body side of the said protrusion part. The combine according to any one of claims 1 to 8 , wherein the fuel tank includes a protruding portion protruding rearward from a rear end portion of the vehicle body frame on a rear end side thereof. Wherein below the protruding portion of the fuel tank, according to claim 9 Combine, characterized in that before provided with outs over de member. Wherein the rear of said projecting portion of the fuel tank, before outs over de member is as claimed in claim 9 or 10, wherein is provided combine. An unloader for discharging the grain from the grain storage unit is provided in a state of projecting rearward from the body frame at the rear of the grain storage unit, and the guard member is rearward of the unloader and below. The combine according to claim 10 or 11, which is arranged on the side. The fuel tank said any one Combine description of the protruding part of claim 6-12 for the top is provided with the fuel supply port of the. The fuel tank, either combine one of claims 1 to 13, which is disposed at a position that overlaps with the grain reservoir in a plan view. The grain storage unit includes a grain tank, and a slanted portion is formed below the grain tank, and the fuel tank is disposed so as to enter the slanted portion. The combine according to any one of 1 to 14 . The Glen tank is provided with a bottom screw for discharging internal grains, and the bottom screw is disposed at a position biased laterally outward in the lateral width direction of the Glen tank, and the inclined portion is The combine of Claim 15 currently formed in the body horizontal inner side of the said bottom screw. Before Symbol feed oil port, and a lateral sidewall of the grain tank side of the threshing apparatus, Combine according to claim 15 or 16, wherein is provided so as to be positioned between the lateral side walls of the threshing apparatus in the grain tank . The combine as described in any one of Claims 15-17 in which the downward sloping surface is formed in the location facing the said inclination part in the said fuel tank. The combine according to claim 18, wherein an inclination angle of the inclined surface is set along the inclined portion. Wherein the fuel tank, the upward surface of the horizontal or nearly horizontal position, the inclined surface and is being formed, before Symbol feed oil port, combine of claim 18 or 19, wherein is provided on the upwardly facing surface. 21. The combine according to claim 20 , wherein a breather is provided on the upper surface of the fuel tank so as to be located at or near the center of the area in plan view. The combine according to claim 20 or 21 , wherein a fuel return pipe from an engine is connected to the upper surface of the upper surface of the fuel tank in a state of being located at or near the center of the area in plan view. A lateral wall facing the grain tank in the fuel tank has a rising wall portion that stands on the upper side of the vehicle body frame and is continuous with the lower end side of the inclined surface at a position separated from the lower end of the inclined portion in the left-right direction. The combine according to any one of claims 18 to 22 , wherein an upper end of the rising wall portion is provided so as to be located above a lower end of the Glen tank. Wherein the bottom wall of the fuel tank, either the outlet for discharging the fuel oil in the tank, the fuel tank of a bottom surface of the area center or claim 1-23 which is provided in a state located near the A combine according to claim 1. The unloader that discharges the grain from the grain storage unit has a discharge posture in which the discharge side end is directed to the lateral outer side of the airframe opposite to the side where the fuel tank is disposed, and the discharge on the vehicle body frame. The combine according to any one of claims 1 to 24 , wherein the combiner is configured to be switchable to a retracted posture in which the side end portion is directed upward. 26. The combine according to any one of claims 1 to 25 , wherein the fuel tank is disposed behind a second reduction device that reduces the second item to a threshing portion in the threshing device in the interval. . 27. The combine according to claim 26 , wherein the fuel tank is disposed from the rear side of the fuselage to the vicinity of the rear end of the second reduction device. The combine according to claim 26 or 27 , wherein the fuel tank is disposed at a position overlapping with the second reduction device as viewed in the longitudinal direction of the fuselage. The grain storage unit includes a grain tank, and the grain tank is self-propelled at a position close to the fuel tank by turning around a vertical axis of a vertical posture provided on the vehicle body frame. The combine according to any one of claims 1 to 28 , wherein the combine is supported so as to be switchable between a work posture housed in the airframe and an inspection posture that protrudes laterally outward from the fuel tank. . 30. The combine according to claim 29 , wherein the fuel tank is disposed so as to be positioned on the inner side in the left-right direction with respect to the location where the vertical axis is present. A linear body mounting plate located on the vehicle body frame is provided at the interval, and the linear body mounting plate is formed between the protruding strip plate portions whose cross-sectional shape is bent upward. but by the position at a small distance in the lateral direction, any one of claims 1 to 30, which is intended to contaminants fall opening to the lower side is formed between the respective convex plate portion Combine as described.

Images