WO2016178292A1 - Work machine, work vehicle, and canopy for work machine - Google Patents

Abstract

A work machine is provided with a fuel tank 40 in the rear section of a traveling machine body, and a refueling assistance stand 7 on which it is possible to place a refueling container, said refueling assistance stand 7 being located at the back of the fuel tank 40. The refueling assistance stand 7 is structured such that it is possible to change mounting positions on the traveling machine body between a usage orientation, in which a placement surface faces up, and a storage orientation, in which the placement surface is positioned in a location facing the back wall of the fuel tank 40.

Description

Work machine, work vehicle, and work machine canopy

The present invention relates to a work machine, a work vehicle, and a work machine canopy.

(1) Some working machines are provided with a fuel tank at the rear of the traveling machine body and a fueling auxiliary base on which a fueling container can be placed behind the fuel tank.

As described above, the working machine including the fuel tank and the refueling auxiliary base that supports the weight of the fueling container used when refueling the fuel tank is described in the following [A] and [B]. There are things.
[A] A refueling auxiliary base located near the refueling port is supported on the body frame so as to be swingable about a horizontal axis along the left-right direction of the traveling body, and the mounting surface is directed upward toward the rear side of the body. It is configured to be switchable so that the usage posture protrudes and the placement surface rises to the retracted state (see Patent Document 1).
[B] A refueling auxiliary stand positioned near the refueling port is formed by bending a pipe-shaped member, and is supported so as to be swingable and slidable around a horizontal axis along the horizontal direction of the traveling machine body. It is configured to be switchable so that the mounting surface is directed upward and protrudes toward the rear side of the machine body, and the mounting surface is erected to enter the retracted state (see Patent Document 2).

(2) Also, in the work vehicle, a radiator that cools the engine coolant, a cooling fan that is disposed inside the fuselage with respect to the radiator, and that cools the radiator, and the outside of the radiator are allowed to ventilate. In addition, there are some which have a dust-proof case that has a dust-proof net that covers in a state of preventing the passage of dust, and that can swing open.

A conventional work vehicle is described in Patent Document 3, for example. This work vehicle is provided with an air-cooled cooling device (“oil cooler” in Patent Document 3) located between a dust screen (“Air intake portion” in Patent Document 3) and a radiator. The air-cooling type cooling device is configured to be movable in the same direction as the opening movement direction of the dustproof case. Specifically, the structure for opening and moving the dustproof case is also used as the structure for opening and moving the air-cooled cooling device.

(3) In addition, some work machines include a work machine canopy that covers the upper part of the operating part of the work machine.

A conventional working machine canopy includes a roof portion integrally formed of a hard synthetic resin material on an upper portion of a support supported by a machine body of the working machine (see, for example, Patent Document 4). ).

Japanese Laid-Open Patent Publication No. 11-243753 (see paragraph “0021” and “FIG. 2” and “FIG. 4” in the drawings) Japanese Laid-Open Patent Publication No. 2007-269160 (see paragraphs “0009” and “0018” and “FIG. 1”, “FIG. 2”, “FIG. 3”, and “FIG. 7” in the drawings) Japanese Unexamined Patent Publication No. 2014-125106 Japanese Unexamined Patent Publication No. 2011-120512

(1) The problems corresponding to the background art (1) are as follows.
With the structure shown in Patent Documents 1 and 2, it is useful in that the area on the traveling machine body can be effectively used when the fueling auxiliary base is not used because the posture switching of the fueling auxiliary base is possible. It is.
However, these refueling auxiliary bases are provided near the refueling port away from the position of the fuel tank, and in the retracted state, they simply stand upright on the rear side of the fuselage, and in particular have some role. It does not fulfill.

The present invention is such that the refueling auxiliary base can be used more effectively.

(2) Moreover, the subject corresponding to background art (2) is as follows.
In the above conventional technique, since the same support structure takes charge of the dustproof case and the air-cooled cooling device, the load applied to the support structure is large. Further, if the support structure for the open movement of the dustproof case is damaged, there is a possibility that the dustproof case cannot be opened and the air-cooled cooling device cannot be opened.

In view of such a situation, it has been desired to provide a work vehicle capable of suitably performing the open movement of the air-cooled cooling device regardless of the support structure for the open movement of the dustproof case.

(3) Moreover, the subject corresponding to background art (3) is as follows.
In the above conventional configuration, the roof portion of the canopy is integrally formed of a hard synthetic resin material. For example, when the roof portion of the canopy is damaged due to contact with other objects, the roof In some cases, the portion is broken and divided into a plurality of pieces, making it difficult to repair the roof portion. As a result, the entire roof portion needs to be replaced with a new one, which is disadvantageous in cost and difficult to perform replacement work for repair and replacement.

An object of the present invention is to provide a working machine canopy that is advantageous in terms of cost and that can be easily replaced, and a working machine equipped with the canopy.

(1) Solution means corresponding to the problem (1) is as follows.
A feature of the present invention is that a fuel tank is provided at the rear of the traveling aircraft body, and a fueling auxiliary base on which a fueling container can be placed is provided at the rear of the fuel tank. The fueling auxiliary base has a mounting surface facing upward. The mounting posture on the traveling machine body is switchable between a use state and a retracted state in which the mounting surface is located at a position facing the rear wall of the fuel tank.

According to the present invention, the posture of the auxiliary fueling stand can be switched between the use state in which the mounting surface faces upward and the storage state in which the mounting surface is located at a position facing the rear wall of the fuel tank. Therefore, it can be conveniently used as a fueling auxiliary stand and can be stored in a state that does not get in the way when not in use.
And in the retracted state, the placement surface is located at a location facing the rear wall of the fuel tank, so that the placement surface can also serve as a protective member for the rear wall of the fuel tank, and the refueling auxiliary stand There is an advantage that can be used effectively.

In the present invention, it is preferable that the fuel tank is disposed between the grain storage unit and the threshing unit at a rear position of the traveling machine body.

By providing this configuration, the space between the grain storage unit and the threshing unit can be effectively used, and the fuel tank can be arranged in a state where the space utilization efficiency is good on the self-propelled aircraft.

In the present invention, the fuel tank is placed and supported on a body frame of the traveling aircraft body, and the refueling auxiliary base is arranged such that the placement surface is positioned between the upper surface and the lower surface of the fuel tank in a use state. It is suitable if it is provided.

By providing this configuration, it is easy to supply fuel in a relatively easy posture while placing and supporting the refueling auxiliary base at a position where refueling work to the fuel tank can be easily performed.

In the present invention, the refueling auxiliary base is rotatable around a horizontal axis along the left-right direction of the traveling machine body, and is rotated downward from the use state around the horizontal axis to enter a retracted state. It is preferable that the mounting surface is configured to face the lower portion of the rear surface of the fuel tank in the retracted state.

By providing this configuration, when the fueling auxiliary base is switched to the retracted state, the lower rear side of the fuel tank can be protected by the fueling auxiliary base.

In the present invention, the propellant frame is provided with a grain tank as a grain storage unit at a rear position of the traveling machine body, a grain discharge unloader behind the grain tank, and supports the unloader from the machine frame of the traveling machine body. It is preferable that the fuel supply auxiliary base is supported by the support frame.

By providing this configuration, it is possible to firmly support the refueling auxiliary stand with a simple structure using the support frame that supports the unloader.

In the present invention, the fuel tank is disposed in a state of protruding rearward from the rear end portion of the body frame of the traveling aircraft body, and is positioned below the protruding portion to the rear side of the fuel tank, A guard member that protects the rear portion of the fuel tank is provided, and the guard member includes a pair of left and right rearward extending frames that extend rearward from the rear end portion of the body frame, and a rearward extending frame thereof. It is preferable that a horizontal frame that connects the rear end portions of the auxiliary fuel support base is provided, and the horizontal frame is positioned below the free end portion of the refueling auxiliary base that has been switched to the retracted state.

By providing this configuration, even when a large-capacity fuel tank protrudes rearward from the rear end of the fuselage frame, the lower side of the fuel tank is reliably protected by a guard member, and fueling assistance is provided. When the stand is switched to the retracted state, the rear portion of the fuel tank is protected by the refueling auxiliary stand and the guard member, and the refueling auxiliary stand is also easy to avoid contact with other objects from the lower side by the guard member.

In the present invention, a grain storage grain tank is provided adjacent to the fuel tank, and in the grain tank, a recessed portion is formed on a wall surface facing the fuel tank. It is preferable to be disposed so as to enter the recessed portion.

By providing this configuration, a recessed portion is formed in the glen tank on the wall surface on the side facing the fuel tank, and the fuel tank is disposed so as to enter the recessed portion. It is possible to increase the capacity of the tank.
Therefore, there is an advantage that the fuel tank capacity can be increased while avoiding an increase in the size of the fuselage frame.

In the present invention, it is preferable that each of the grain tank and the fuel tank is mounted and supported on a body frame, and the recessed portion is provided in a lower part of the grain tank.

By providing this configuration, each of the Glen tank and the fuel tank can be stably supported by the fuselage frame, and the lower part of the Glen tank and the fuselage frame can be utilized using the recessed portion provided in the lower part of the Glen tank. There is an advantage that the space for disposing the fuel tank can be expanded by widening the space between the fuel tank and the fuel tank.

In the present invention, it is preferable that a downwardly inclined portion is formed below the Glen tank, and the recessed portion is formed in the downwardly inclined portion.

By providing this configuration, the recessed portion is formed in the inclined portion of the lower portion of the Glen tank, so that the space on the lower side of the Glen tank can be used effectively, and the recessed portion is also not depressed. It is easy to form in a state where there is an inclination. Therefore, it is advantageous in that the recessed portion can be easily formed without hindering the flow of the grain inside the Glen tank.

In the present invention, it is preferable that the recessed portion is formed only in a portion of the Glen tank where the fuel tank overlaps in plan view.

By providing this configuration, the recessed portion formed in the Glen tank is formed only at the location where the fuel tank overlaps in plan view, so the reduction of the capacity in the Glen tank by forming the recessed portion is the minimum necessary. That's it. Accordingly, there is an advantage that the fuel tank capacity can be increased and the degree of reduction of the Glen tank capacity can be reduced.

In the present invention, it is preferable that the fuel tank is formed in a shape along the shape of the recessed portion.

By providing this configuration, the shape of the fuel tank is in line with the shape of the recessed portion, so that there is less possibility of wasted space on the fuel tank side or the grain tank side, and the space on the fuselage frame is reduced. There is an advantage that can improve the use efficiency.

In the present invention, it is preferable that the recessed portion is formed on the rear side of the Glen tank.

By providing this configuration, since the recessed portion of the Glen tank is formed on the rear side of the Glen tank, a part of the fuel tank can extend to the rear side of the Glen tank. This has the advantage that the fuel tank capacity can be further increased.

In the present invention, it is preferable that the fuel tank includes a projecting portion that projects rearward from the Glen tank in a plan view, and the projecting portion includes a fuel filler opening.

This configuration has the advantage that the oil supply port is provided at the protruding portion protruding rearward from the Glen tank, so that it is easy to perform an oil supply operation from the outside.

(2) The means for solving the problem (2) are as follows.
The work vehicle of the present invention is
A radiator for cooling the engine coolant,
A cooling fan that is disposed inside the fuselage with respect to the radiator and cools the radiator;
A dust-proof case having a dust-proof net that covers the outside of the radiator body in a state that allows ventilation and prevents the passage of dust;
An air-cooled cooling device located between the dust-proof net and the radiator,
The air-cooled cooling device is configured to be able to open and move in a direction different from the opening movement direction of the dustproof case.

According to the present invention, since the opening movement direction of the air-cooled cooling device is different from the opening movement direction of the dust-proof case, the air-cooling cooling device is not supported by the support structure for opening and closing the dust-proof case. Therefore, even if the support structure for opening and closing the dustproof case is damaged, the air-cooled cooling device can be suitably moved open regardless of the support structure for opening and closing the dustproof case.

In the above configuration,
Either one of the dust-proof case and the air-cooled cooling device is configured to be movable up and down,
It is preferable that either one of the dustproof case and the air-cooled cooling device is configured to be horizontally movable.

According to this configuration, since the opening movement direction of the air-cooled cooling device is substantially orthogonal to the opening movement direction of the dust-proof case, the operational feeling of the opening movement operation of the air-cooling cooling device and the opening movement operation of the dust-proof case is reduced. Each becomes different, and the maintainability of the air-cooled cooling device can be improved.
Here, “up and down movement” is a concept including swing movement along the vertical direction and slide movement along the vertical direction.
Further, “horizontal movement” is a concept including swing movement along the horizontal direction and slide movement along the horizontal direction.

In the above configuration,
It is preferable that the dustproof case and the air-cooled cooling device are rotatable.

According to this configuration, there is no need to secure a non-interfering space in the slide range unlike dust-proof cases and air-cooled cooling devices that are slidable, so the dust-proof case and air-cooled cooling devices are laid out. It becomes easy.

In the above configuration,
The air-cooled cooling device is connected to a device to be cooled by a flexible hose,
It is preferable that the air-cooled cooling device can be rotated by deformation of the flexible hose.

According to this configuration, the flexible hose connected to the device to be cooled can also be used as the rotating structure of the air-cooled cooling device. For this reason, it is not necessary to provide a dedicated rotation structure for the air-cooled cooling device, and the structure can be simplified.

In the above configuration,
A through-hole support portion is provided in the frame body that houses the radiator,
The flexible hose is penetrated and supported by the penetration support part,
It is preferable that the air-cooled cooling device can be rotated around the vicinity of the penetration support portion.

According to this configuration, the amount of deformation of the flexible hose is smaller than that in which the flexible hose rotates around a point far from the penetration support portion of the frame body, and the durability of the flexible hose is improved. Reduction can be suppressed.

In the above configuration,
It is preferable that the penetration support portion is detachable from the frame body.

According to this configuration, by removing the penetration support portion from the frame body, the flexible hose can be easily deformed, and the air cooling type cooling device to which the flexible hose is connected can be easily rotated.
Moreover, a flexible hose is stably supported by a penetration support part by attaching a penetration support part to a frame body.

In the above configuration,
It is preferable that the frame body is provided with a regulating member that regulates the movement of the flexible hose when the air-cooled cooling device is opened.

According to this configuration, since the flexible hose is regulated so as not to be excessively deformed by the regulating member, it is possible to suppress a decrease in durability of the flexible hose.

In the above configuration,
Another air-cooled cooling device different from the air-cooled cooling device is provided inside the air-cooled cooling device,
It is preferable that the other air-cooled cooling device is configured to be movable in a direction different from the opening movement direction of the air-cooling cooling device and the opening movement direction of the dustproof case.

According to this configuration, the support structure of the dust-proof case, the support structure of the air-cooled cooling device, and the support structure of another air-cooled cooling device are different from each other. However, it does not affect other supporting structures. Also, since the opening movement direction of the dust-proof case, air-cooling cooling device, and another air-cooling cooling device is different from each other, the dust-proof case opening movement operation, the air-cooling cooling device opening movement operation, and another air-cooling cooling device The operating sensation of the opening movement operation is different, and the maintainability of the air-cooled cooling device and another air-cooled cooling device can be improved.

In the above configuration,
The dustproof case is rotatable around a longitudinal axis,
Either one of the air-cooled cooling device and the other air-cooled cooling device can be turned upward.
It is preferable that either one of the air-cooled cooling device and the other air-cooled cooling device is rotatable downward.

According to this configuration, since the dustproof case can be rotated about the longitudinal axis, the dustproof case can be easily opened and moved without lifting the dustproof case. Since the air-cooled cooling device and another air-cooled cooling device can be rotated in different directions in the vertical direction, the air-cooling device cooling device can be opened and moved, and another air-cooled cooling device can be opened and moved. The operational sensations are different, and the maintainability of the air-cooled cooling device and other air-cooled cooling devices can be improved.

In the above configuration,
The air-cooled cooling device in the state of being rocked open and the other air-cooled cooling device in the state of being rocked open are mutually locked, so that the air-cooled cooling device and the other air-cooled cooling device are locked together. It is preferable that both are configured to be held in an open and swinging state.

According to this configuration, there is no need to provide a dedicated locking member for locking the air-cooled cooling device or another air-cooled cooling device in the open and swinging state, and the structure can be simplified.

(3) The means for solving the problem (3) are as follows.
The characteristic configuration of the canopy for a work machine according to the present invention is
A support frame supported by the machine body of the working machine, and a flexible sheet stretched on the support frame to form a roof portion and have flexibility,
The support frame is formed in a frame shape in plan view;
A mounting portion for the support frame is provided on the inner surface side of the flexible sheet,
The mounting portion is provided in a state of being located inside the frame-shaped support frame in a plan view.

According to this configuration, since the roof portion is composed of a flexible flexible sheet stretched on the support frame, for example, when the roof portion is damaged due to contact with other objects, the roof There is no risk that the part will break and be divided into a plurality of pieces, and only a part will be broken and a tear will be formed. Therefore, it is possible to continue using the damaged portion as it is by performing repair processing such as pasting or sewing together. As a result, even if the roof portion is damaged, it is not necessary to replace the entire roof portion with a new one, which is advantageous in terms of cost.

Since the flexible sheet is configured to be attached to the support frame by an attachment part located inside the frame of the support frame, for example, when performing a replacement work at the time of repair or the like, the flexible sheet is placed above the support frame. The attachment work can be easily performed in the state. After the flexible sheet is stretched on the support frame, the position corresponding to the attachment portion is pulled toward the support frame, that is, toward the outside of the frame, so that the flexible sheet can be stretched with less slack. it can.

Therefore, the working machine canopy according to the present invention is advantageous in terms of cost and can be easily replaced.

In the present invention, it is preferable that a plurality of the mounting portions are provided along the frame shape of the support frame.

According to this configuration, the flexible sheet is attached to the support frame by the plurality of attachment portions arranged in a line along the frame shape of the support frame. Can be tensioned.

In the present invention, it is preferable that a long sheet-like attachment member that includes the plurality of attachment portions and extends along the frame shape of the support frame is attached to the inner surface side of the flexible sheet. .

According to this configuration, the sheet-like attachment member is attached to the inner surface side of the flexible sheet, and the attachment member is provided with the attachment portion. As a result, the flexible sheet does not require special processing such as forming an attachment portion such as an insertion hole for attachment, and can easily prevent rainwater from entering.

In the present invention, it is preferable that the attachment portion is provided with an insertion hole, and the insertion hole and the support frame are connected by a string-like member.

According to this configuration, the string-like member is passed through the insertion hole and is passed so as to surround the support frame, and the ends of the string-like member are connected to each other. By attaching the string-like member in this way, the flexible sheet can be reliably attached to the support frame.

In the present invention, the support frame includes a peripheral frame forming body that forms a rectangular frame shape, a laterally connected body that extends across the lateral sides of the left and right sides of the peripheral frame forming body, and the laterally connected body. A laterally reinforcing body integrally connected to the laterally connecting body in a bent state, a laterally extending intermediate portion of the laterally facing reinforcing body, and a laterally extending side portion on the left and right sides of the peripheral frame forming body. It is preferable to provide an oblique reinforcing body.

According to this configuration, the outer peripheral portion in plan view of the roof portion is formed by the peripheral frame forming body. The laterally-oriented connecting body constructed on the peripheral frame forming body can be used as a member for supporting the working machine body. The peripheral frame forming body and the laterally connected body constitute the main part of the support frame. And by providing a horizontal reinforcement body and a diagonal reinforcement body, the surrounding frame formation body and horizontal connection body which comprise a principal part can be reinforced, and a support frame with high intensity | strength can be formed.

In the present invention, the support frame is supported so as to be swingable up and down around a horizontal axis with respect to a support supported by the machine body of the work machine, and the vertical swing position of the support frame can be held at a set position. It is preferable that an engaging type positioning mechanism is provided, and an urging mechanism is provided that moves and urges the support frame upward or downward about the horizontal axis between the support frame and the support column.

According to this configuration, the positioning mechanism holds the vertical swing position of the support frame at the set position by engaging the support frame side member and the support column side member. When held in the set position in this way, the support frame is urged to move upward or downward by the urging mechanism.

At the place where the member on the support frame side and the member on the support column side are engaged, the biasing force of the biasing mechanism will maintain the two members pressed against each other, and the support frame will not be rattled. It can be supported in a good state.

The characteristic configuration of the work machine according to the present invention is that the work machine canopy having the above-described configuration is provided.

According to this configuration, the upper part of the operating unit in this working machine can be covered with the working machine canopy, and it is possible to prevent the driver who is on the operating part from entering the sun or rain water.

In the present invention, the working machine canopy is provided in a state of being positioned above the operating unit, and a driving unit is provided below the operating unit, and the driving unit includes an engine, a radiator for cooling the engine, A cooling fan for generating cooling air to the radiator, and a dustproof cover for sucking the cooling air from outside the machine body, and a position of the dustproof cover on the outer side of the machine body, and an outside of the machine tool canopy. It is preferable that the side end portion position is coincident or substantially coincident.

According to this configuration, the engine, the radiator, and the cooling fan provided in the driving unit are covered on the upper side by the engine bonnet provided in the driving unit, but the dust-proof cover faces the outside of the aircraft in order to inhale outside air. It will be exposed to the outside without being covered by an engine bonnet or the like.

The position of the outer end of the dustproof cover on the outside of the machine and the position of the outer edge of the machine canopy on the working machine match or substantially match, so the work implement is positioned above the dustproof cover exposed to the outside. Can be covered by canopy. It becomes possible to suppress rain water and the like from falling on the dust cover, and the durability of the dust cover can be improved.

In the present invention, the working machine canopy is provided in a state of being positioned above the driving unit, the driving unit is provided with a driving seat and a side panel positioned on the inward side of the driving seat, It is preferable that the inward end position of the side panel of the side panel and the inward end position of the work machine canopy match or substantially match.

According to this configuration, the side panel is provided with various operating tools for performing a driving operation, but the various operating tools are provided in a state of being exposed outward from the side panel for operation by the driver. It is done.

The side panel side end position of the side panel and the machine side end position of the work machine canopy match or substantially match, so the various operation tools are exposed to the outside. Can be covered with a working machine canopy. It is possible to suppress rainwater and the like from falling on various operation tools, and the durability of the various operation tools can be improved.

FIG. 14 is a view showing the first embodiment (hereinafter, the same applies to FIG. 13), and is a right side view of the entire ordinary combine. It is a top view of the whole ordinary combine. It is a right view which shows the positional relationship of the glen tank and fuel tank which were installed on the body frame, and the fueling auxiliary | assistant stand. It is a rear view which shows the positional relationship of the grain tank, threshing apparatus, fuel tank, and fueling auxiliary stand which were installed on the body frame. It is an arrow view in the VV line cross section in FIG. It is the elements on larger scale in the rear view which show the support structure and refueling auxiliary stand of a Glen tank and an unloader. It is a disassembled perspective view which shows the support structure and refueling auxiliary stand of a Glen tank and an unloader. It is sectional drawing which shows the attachment structure of an oiling auxiliary stand. It is sectional drawing which shows the attachment structure of an oiling auxiliary stand. It is explanatory drawing which shows the open posture fixed structure of a Glen tank. It is the XI-XI sectional view taken on the line in FIG. It is a rear view which shows the upper part of an unloader. It is the XIII-XIII sectional view taken on the line in FIG. It is a figure which shows 2nd Embodiment (following, it is the same also to FIG. 20), and is the whole side view which shows the normal type combine which is an example of a working vehicle. It is a whole top view which shows the normal type combine. It is a side view which shows the inside of a dustproof case. It is sectional drawing of the back view which shows the inside of a dust-proof case and a bonnet. It is a partial notch top view which shows the inside of a dust-proof case and a bonnet. It is a disassembled perspective view which shows the periphery of a penetration support part. It is sectional drawing of the back view which shows the state by which the intercooler which is an example of an air-cooling-type cooling device, the oil cooler for working machines which is an example of another air-cooling-type cooling device, and the oil cooler for transmissions was rock | fluctuated openly is there. It is a figure which shows 3rd Embodiment (following, it is the same also to FIG. 33), and is the whole combine side view. It is a whole top view of a combine. It is a side view of a crawler traveling device. It is a vertical rear view of a crawler traveling device. It is a front view which shows the periphery of a driving | operation part. It is a disassembled perspective view of a canopy. It is a bottom view of a canopy. It is a vertical side view of a canopy. It is a side view of a positioning mechanism. It is a top view of a positioning mechanism. It is a front view of a positioning mechanism. It is a partial longitudinal front view of a canopy. It is a perspective view of a string-like member.

[First Embodiment]
DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, a first embodiment of the invention will be described with reference to the drawings.
In the description of the first embodiment, the front-rear direction and the left-right direction are described as follows unless otherwise specified. That is, the forward traveling direction (see arrow F in FIG. 2) during work travel of the aircraft is “front”, the forward traveling direction (see arrow B in FIG. 2) is “rear”, The direction corresponding to the right side (see arrow R in FIG. 2) with respect to the forward posture is “right”, and the direction corresponding to the left side (see arrow L in FIG. 2) is also “left”.

〔overall structure〕
1 and 2 show an ordinary combine as an example of a harvester. The harvester is an example of a work machine.
This ordinary combine is provided with a self-propelled aircraft A (corresponding to a traveling aircraft) that travels with a pair of left and right crawler travel devices 1. The self-propelled aircraft A is provided with a driving unit 2 and a pre-cutting processing device 3 (corresponding to a cutting unit) at a front position thereof. And in the rear part position of the self-propelled machine A, the whole culling type threshing device 4 into which the culm cut by the pre-cutting processing device 3 is fed, and the grain tank 5 for storing the grains supplied from the threshing device 4 (Corresponding to a grain storage unit) and an unloader 6 for discharging the grain stored in the Glen tank 5 to the outside of the machine. Further, a fuel tank 40 is provided on the body frame 10 at a location corresponding to the rear end portion of the self-propelled machine body A and between the grain tank 5 and the threshing device 4.

[Operation section]
An engine 20 mounted on the fuselage frame 10 is disposed below the driver seat 11 of the driving unit 2, and the driving force from the engine 20 is applied to the left and right crawlers at the center of the front part of the self-propelled aircraft A. A mission case (not shown) for transmitting to the apparatus 1 is provided over the top and bottom of the fuselage frame 10. The transmission case is provided with a continuously variable transmission (not shown) that continuously changes the driving force from the engine 20 and a steering clutch (not shown) that interrupts the driving force transmitted to the left and right crawler travel devices 1. (Not shown) is built-in.

The driving unit 2 is provided with a box-shaped engine cover 21 that covers the upper side of the engine 20, and a driver seat 11 is provided on the upper surface of the engine cover 21. An intake case 22 is formed on the outer side of the engine cover 21, and an intake portion 22 </ b> A is formed on the outer surface side of the intake case 22.
A control tower 12 is erected on the front side of the driver's seat 11, 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 3 on the upper surface side of the control tower 12. The operation lever 13 is also provided so as to be swingable back and forth and from side to side.
As shown in FIGS. 1 and 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 portion of the driver seat 11. On the upper surface of the front end portion of the side panel 14, a main transmission lever 15 </ b> A and a sub transmission lever 15 </ b> B are provided as a shift operation tool 15 that controls the traveling speed of the self-propelled machine A.

A threshing clutch lever 16 </ b> A and a reaping clutch lever 16 </ b> B are provided on the upper surface side of the side panel 14 as a work clutch lever 16 on the rear side of the speed change operation tool 15 side by side. The threshing clutch lever 16A and the reaping clutch lever 16B operate the threshing clutch (not shown) in the threshing device 4 by turning the threshing clutch lever 16A back and forth, and cut the threshing clutch lever 16B by moving the threshing clutch lever 16B back and forth. The preprocessing device 3 is configured to perform an on / off operation of a cutting clutch (not shown).
Further, a discharge clutch lever (not shown) 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 performs an on / off operation of the discharge clutch 17 (see FIG. 1) for intermittently driving the engine 20 with respect to the bottom screw 51 of the glen tank 5, and enables the unloader 6 to discharge the grain. And an operation tool for switching operation to a state where grain discharge is stopped.

[Reaping processing device]
The pre-harvest processing device 3 is configured to scrape the tip side of the planted culm by rotating the reel 30 and to cut the stock of the culm with a cutter 31. The harvested cereals (reached cereals) are laterally fed by the lateral feed auger 32 and collected near the entrance of the feeder 33. The whole rice cake is fed backward by the feeder 33 and fed into the threshing device 4.
Further, the pre-cutting processing device 3 is configured to be swingable up and down around a horizontal axis (not shown) on the rear end side of the feeder 33. The feeder 33 is swung up and down by an actuator (not shown) such as a hydraulic cylinder provided over the body frame 10 and the lower portion of the feeder 33. The cutting height of the cereal can be adjusted by setting the swinging amount by the operation of the actuator.

The scraping reel 30 provided at an upper position on the front end side of the feeder 33 swings up and down around the swinging fulcrum (not shown) on the rear end side, so that the scraping height position with respect to the feeder 33 is reached. It is configured to be changeable. In this way, by changing the relative height of the scraping reel 30 with respect to the feeder 33, it is possible to change the scraping height with respect to a crop to be harvested such as a planted cereal without changing the cutting height. The change of the height position of the scraping reel 30 is performed by an expansion / contraction operation of a reel lifting / lowering device (not shown) constituted by a hydraulic cylinder interposed between the upper portion of the feeder 33. The raising / lowering operation by the reel raising / lowering device is performed by a command from an operation input unit such as a push button switch (not shown) provided in the grip portion of the operation lever 13.

[Threshing equipment]
The threshing device 4 is an axial flow type cylinder (not shown) that is driven and rotated around the axial center 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 sorter, the first of the sorted grains is supplied to the grain tank 5 by the cerealing device 4A, and the second barrel is swung by the second reduction device (not shown). Returned to the handling room (not shown), the sawdust other than the grains falls and is released to the rear of the self-propelled aircraft A from the rear part of the sorting processor.

[Glen tank]
Glen tank 5 is provided with tank main part 50 for storing the grain supplied from grain raising device 4A.
The tank main body 50 is in a retracted position in the self-propelled airframe A, and includes a front wall 50a facing the front side of the airframe, a rear wall 50b facing the rear side of the airframe, and a left side wall 50c facing the left side that is the airframe side. And a right lateral wall 50d facing the right side which is the outer side of the machine body, and is formed in a substantially rectangular box shape. Further, the tank body 50 is stored in the self-propelled aircraft A by turning around the vertical axis Y in the vertical posture at the rear position of the self-propelled aircraft A (the posture indicated by the solid line in FIG. 2; 2) and an inspection posture that protrudes laterally from the self-propelled aircraft A (posture indicated by a virtual line in FIG. 2; corresponding to an inspection position).
The vertical axis Y serving as the turning center of the Glen tank 5 is configured to coincide with the cylinder axis of the vertical transfer cylinder 61 provided in the unloader 6 provided on the rear surface side of the tank body 50.

As shown in FIGS. 1 to 4, the Glen tank 5 is provided with a bottom screw 51 at the bottom of the tank body 50 that feeds grains stored in the tank body 50 backward.
Most of the bottom wall 50 </ b> A of the tank main body 50 is such that the grain supplied from the cerealing device 4 </ b> A is centered on the bottom side in the left-right direction of the tank main body 50 in the working posture in which the tank main body 50 is housed in the self-propelled machine A. It is formed in a tapered inclined surface that becomes lower toward the center side in the left-right direction. Because of this structure, the bottom screw 51 is disposed at a substantially central position in the left-right direction of the tank body 50.
The inclined surface of the bottom wall 50 </ b> A is set to an inclination angle that allows the grain to slide down under its own weight toward the bottom screw 51. A portion including the bottom wall 50 </ b> A formed on such an inclined surface corresponds to an inclined portion that is narrowed at a lower portion of the Glen tank 5. A recessed portion 52 described later is formed in the inclined portion.

The front end of the screw shaft 51 </ b> A of the bottom screw 51 protrudes forward from the front wall 50 a of the tank body 50. The driving force from the engine 20 is intermittently connected to the front end of the screw shaft 51A via the discharge clutch 17 (see FIG. 1) provided on the transmission upper side so that the driving force from the engine 20 is transmitted. It is configured to be possible.
On the rear wall 50b of the tank body 50, a rear support plate 54 for supporting the rear end side of the bottom screw 51 is integrally attached to the rear wall 50b. The rear support plate 54 is used to reinforce the heavy bottom screw 51 over the front wall 50a and the rear wall 50b. Although not shown, a front support plate having a similar structure is provided on the front wall 50a. It is also fixed on the front side. The front support plate and the rear support plate 54 are made of a relatively thick steel plate, and are configured by strength members that are erected in the form of ribs by folding the left and right side edges outward. .

On the rear surface side of the rear support plate 54, a discharge cylinder portion 53 for feeding the grain sent from the bottom screw 51 to the unloader 6 is welded and fixed in a state of protruding rearward.
As shown in FIG. 3, the discharge cylinder portion 53 is bent upward at the rear end side, and the lower end side of the vertical transfer cylinder 61 of the unloader 6 is connected to the upward end surface. The bevel gear 51Aa provided at the rear end of the screw shaft 51A of the bottom screw 51 is engaged with the bevel gear 61Aa at the lower end of the vertical screw shaft 61A provided in the vertical conveying cylinder 61 so as to transmit power. It is configured. Thereby, it will be in the state from which the grain is carried out from the bottom screw 51 to the vertical conveyance cylinder 61 side of the unloader 6.

As shown in FIGS. 4 to 6, the left lateral wall 50c facing the left side which is the aircraft body side in the stowed posture in the self-propelled aircraft A among the inclined portions of the narrowed portion provided in the lower part of the Glen tank 5. A recessed portion 52 is formed at a position corresponding to the lower portion of the groove.
The recessed portion 52 has a length in the front-rear direction that is about １ ／ of the rear half of the length in the front-rear direction of the tank body 50 in the front-rear direction, and in the vertical direction of the inclined bottom wall 50A. Is formed in a state of being recessed toward the inner side of the tank over a range from the middle position to a position slightly above the upper end edge of the bottom wall 50A.
That is, the recessed portion 52 is surrounded on the front side, the upper side, and the right side by the three wall surfaces of the recessed front wall 52a positioned at the front end portion thereof and the recessed inclined wall 52b and the recessed horizontal wall 52c positioned on the rear side thereof. The rear side, the left lateral side, and the lower side are recessed portions that are open.

As shown in FIGS. 4 to 6, the recessed portion 52 configured in this way is located at a position where the upper end portion of the recessed portion 52 is higher than the upward surface 44 </ b> A of the fuel tank 40. Therefore, it is possible to dispose the concave portion 52 so that the upper corner on the right side of the fuel tank 40 in the rear view enters the internal space of the concave portion 52. As a result, the fuel tank 40 having a relatively large capacity can be disposed without any trouble within the gap between the grain tank 5 and the threshing device 4 in the left-right direction.

As shown in FIGS. 1 and 2, the ceiling wall 50B portion of the Glen tank 5 is located on the far side (front side) of the ceiling wall 50B portion on the side (rear side) close to the vertical axis Y that is the turning center of the unloader 6. ) In a stepped shape that is lower than the ceiling wall 50B portion.
Thus, the ceiling wall 50B portion near the vertical axis Y, which is the turning center of the unloader 6, and the far side ceiling wall 50B portion are connected by the inclined surface 55a, and the rear side of the inclined surface 55a is connected. A recessed step 55 is formed. As a result, the horizontal conveying cylinder 62 of the unloader 6 is placed in a substantially horizontal posture that is lower than the uppermost position of the ceiling wall 50B portion of the Glen tank 5 and is supported by the receiving bracket 18 at a predetermined position on the self-propelled aircraft A. It can be configured as follows.
In addition, the presence of the recessed stepped portion 55 allows the unloader 6 to extend from the uppermost position of the ceiling wall 50B portion of the grain tank 5 even when the lateral transfer cylinder 62 of the unloader 6 is extended laterally outward. It is configured so that the grain in the inside can be discharged to a relatively low position in a low, substantially horizontal posture.

The corners on the left and right end sides of the inclined surface 55a of the recessed stepped portion 55 can be prevented from being damaged or deformed even if they come into contact with the horizontal conveyance cylinder 62 of the unloader 6. Protective reinforcing bodies 56R and 56L made of a pipe-like member are provided.
As shown in FIGS. 3 and 4, among the reinforcing bodies 56R and 56L on the left and right sides, the right reinforcing body 56R is made of a pipe material thicker than the left reinforcing body 56L. The reinforcing body 56R is fixed to the plate-like mounting plate 56Ra by welding, and the mounting plate 56Ra is bolted near the right corner of the inclined surface 55a in a state where the mounting plate 56Ra is applied to the inclined surface 55a. .

As shown in FIGS. 2 to 4, the Glen tank 5 is provided with a notch portion 57 whose left lateral side is open at the left side of the left end portion of the inclined surface 55 a.
This notch portion 57 is provided to ensure a large overlap allowance between the horizontal transport cylinder 62 in the retracted posture supported by the receiving bracket 18 at a predetermined position and the Glen tank 5. That is, if the vertical axis Y, which is the turning center of the Glen tank 5, is set at the center of the Glen tank 5 in the left-right direction or outward from it, the Glen tank 5 inevitably in the storage position and the storage posture. The overlap with the horizontal transport cylinder 62 increases, but this is allowed.
Of the reinforcing bodies 56R, 56L on the left and right sides, the left reinforcing body 56L has the notch that is slightly closer to the center of the Glen tank 5 than the left lateral wall 50c of the Glen tank 5, as shown in FIGS. On the front side of the portion 57, it is arranged along the left edge of the inclined surface 55a.
The left reinforcing body 56L is made of a pipe material that is thinner than the right reinforcing body 56R, and the rear end side of the ceiling wall 50B of the glen tank 5 has a ceiling behind the portion where the inclined surface 55a exists. A bolt is connected to a lower position of the wall 50B portion, and a front end side of the ceiling wall 50B portion of the glen tank 5 is connected to a higher position of the ceiling wall 50B portion on the front side than the portion where the cutout portion 57 exists. Has been.

As shown in FIG. 2, the right end of the Glen tank 5 in the storage position is closer to the vehicle body side than the right end of the intake case 22 in the driving unit 2 corresponding to the right end portion of the self-propelled aircraft A. Configured to be located.
Therefore, the Glen tank 5 in the state of being in the storage position is configured to be less likely to come into contact with another object during traveling.

[Unloader]
The unloader 6 includes a straight tubular vertical conveyance cylinder 61 erected upward, and a horizontal conveyance cylinder 62 connected to the upper end of the vertical conveyance cylinder 61. The horizontal transfer cylinder 62 and the vertical transfer cylinder 61 are configured to be able to swing left and right around the vertical axis Y, and to be able to swing up and down around the horizontal horizontal axis X.
The vertical conveying cylinder 61 includes the vertical screw shaft 61 </ b> A inside, and constitutes an upward vertical conveying path for ascending and conveying the grain fed from the rear end portion of the bottom screw 51. The horizontal conveyance cylinder 62 connected to the upper end portion of the vertical conveyance cylinder 61 has a horizontal screw shaft 62A inside, and the grains inherited from the upper end portion of the vertical conveyance cylinder 61 are external to the machine body in the horizontal direction. A sideways conveyance path for conveying toward the side is configured.

The unloader 6 is connected so that the vertical conveyance cylinder 61 can turn around the vertical axis Y along the cylinder axis of the vertical conveyance cylinder 61 with respect to the discharge cylinder portion 53 of the Glen tank 5. Then, the turning operation around the vertical axis Y of the vertical conveying cylinder 61 is performed by the turning drive mechanism 60.
As shown in FIGS. 3 to 6, the turning drive mechanism 60 includes a turning gear portion 61a provided on the outer periphery of the lower end portion of the vertical conveying cylinder 61, a pinion gear 63a and a pinion gear 63a meshing with the turning gear portion 61a. An electric motor 63 for driving is provided.
The electric motor 63 is supported by a support frame 23 erected from the body frame 10 as a body fixing portion, and a pinion gear 63a provided on the output shaft of the electric motor 63 meshes with the turning gear portion 61a. It is assembled as follows. As a result, the horizontal conveyance cylinder 62 of the unloader 6 can be rotated clockwise or counterclockwise around the vertical axis Y with the forward or reverse rotation of the electric motor 63.
Further, the swinging movement of the horizontal transfer cylinder 62 around the horizontal horizontal axis X is performed by the expansion and contraction operation of the hydraulic cylinder 64 provided between the upper part of the vertical transfer cylinder 61.

The unloader 6 is provided with inspection windows 65 and 66 for maintenance work in both the conveyance start end portion of the horizontal conveyance cylinder 62 and the conveyance termination portion of the vertical conveyance cylinder 61.
As shown in FIGS. 4 and 12, the inspection window 66 of the horizontal conveyance cylinder 62 is opposite to the side of the base end case 62 </ b> B of the horizontal conveyance cylinder 62 that is connected to the terminal case 61 </ b> B of the vertical conveyance cylinder 61. It is formed on the side lateral outer surface. The inspection window 66 is configured to be able to be closed and opened by bolting a flat cover plate 66B to an opening 66A formed in a flat portion of the base end case 62B.

As shown in FIGS. 3, 12, and 13, the inspection window 65 of the vertical transfer cylinder 61 includes a side of the end case 61 </ b> B of the vertical transfer cylinder 61 that is connected to the base end case 62 </ b> B of the horizontal transfer cylinder 62. Is formed on the opposite lateral lateral surface. The inspection window 65 is configured to be able to be closed and opened by bolting a partial arc-shaped lid plate 65B to an opening 65A formed in the arc-shaped cylindrical portion of the terminal end case 61B.
In this inspection window 65, an opening 65A is formed in an arcuate cylindrical portion, and a cover plate 65B that closes the opening 65A is formed in an arcuate shape with a curvature along the arcuate surface 61Ba on the inner peripheral side of the terminal end case 61B. It is formed in a curved plate shape having a peripheral surface 65Ba.

Further, when the cover plate 65B is closed, the cover plate 65B is connected to the outer connection so that the arc-shaped inner peripheral surface 65Ba is fixed in a state of being flush with the inner peripheral arc surface 61Ba of the end case 61B. It is configured by a combination of a plate 65Bb and an inner guide plate 65Bc that fits into the opening 65A and has a thickness comparable to the thickness of the end case 61B.
The lid plate 65B configured as described above is configured such that the outer connecting plate 65Bb is connected to the terminal case 61B with the connecting bolt 65C in a state where the inner guide plate 65Bc is fitted into the opening 65A. The inspection window 65 of the transport cylinder 61 can be closed.
In this state, as shown in FIG. 13, the arcuate inner peripheral surface 65Ba of the cover plate 65B having the same degree of curvature as the arc surface 61Ba on the inner peripheral side of the terminal end case 61B is substantially the surface. It is in a state of being attached in a single state.

As shown in FIGS. 3, 4, and 11, the vicinity of the upper end portion of the vertical conveyance cylinder 61 is connected and fixed to the rear wall 50 b of the Glen tank 5 via a mounting bracket 67.
As shown in FIG. 11, the mounting bracket 67 is connected to the tank side connecting member 67A having a receiving surface 67Aa having a curvature along the outer peripheral arc of the vertical conveying cylinder 61, and to the tank side connecting member 67A. The U-shaped connecting member 67B is bent in a U-shape and has a contact surface 67Ba having a curvature along the outer circumferential arc of the vertical conveying cylinder 61.
The tank side connecting member 67A and the U-shaped connecting member 67B are configured to be connected and disconnected via a connecting bolt 67C.

[Fuel tank]
As shown in FIGS. 2 to 6, the fuel tank 40 is disposed on the machine frame 10 at the rear end of the self-propelled machine A at a location corresponding to the gap between the grain tank 5 and the threshing device 4. .
The main body portion 41 of the fuel tank 40 is provided with a horizontal or substantially horizontal upward surface 44A as an upper wall of the main body portion 41 and a lateral surface 44B along the vertical direction as a horizontal wall of the main body portion 41. A bottom surface 44 </ b> C as a bottom wall of the portion 41 is mounted on the body frame 10. The front facing surface 44D as the front wall of the main body portion 41 and the rear facing surface 44E as the rear wall are both formed in a substantially rectangular shape, and the entire main body portion 41 is formed in a rectangular box shape. In this way, the entire body portion 41 is formed in a rectangular box shape having a symmetrical shape on the left and right instead of an asymmetric shape on the left and right, so that the front surface 44D and the rear surface 44E have the same shape. Can be used in combination.

The height of the upward surface 44 </ b> A is set to be lower than the upper end of the recessed portion 52 of the Glen tank 5, and the upper portion of the fuel tank 40 is configured to partially enter the recessed portion 52 of the Glen tank 5. Has been.
The main body portion 41 of the fuel tank 40 is located in a state in which the forward facing surface 44D is in close proximity to the recessed front wall 52a of the recessed portion 52 provided in the lower portion of the Glen tank 5 in the front-rear direction. The rearwardly facing surface 44E extends rearward from the rear wall 50b of the grain tank 5 and extends over the rear end of the fuselage frame 10 so as to cover the same position as the rear end of the unloader 6. Yes. In the main body portion 41, an oil filler opening 42 is provided at an upper portion of the portion extending rearward from the rear wall 50b of the Glen tank 5 and opens obliquely toward the rear upper portion. The main body portion 41 is fixed to the body frame 10 by an attachment band 43.

As shown in FIGS. 1 to 5, the rear end side of the main body portion 41 extending rearward from the rear wall 50 b of the Glen tank 5 is provided by a guard member 80 connected to the rear end portion of the body frame 10. Contact with other objects from the lower side or the rear side is suppressed.
The guard member 80 includes a pair of left and right rearward extending frames 81 and 81 extending from the rear end portion of the body frame 10 toward the rear side of the body, and rear end portions of the rearward extending frames 81 and 81. And a horizontal frame 82 connected to each other, and is formed in a plan view.
The left and right rearward extending frames 81 and 81 are constituted by channel-like members facing each other so that the opening sides face each other, and the horizontal frame 82 is formed in the opening portion of the channel-like rearward extending frames 81 and 81. It is comprised with the pipe member made from the steel pipe connected by the connecting bolt 83 penetrated to an up-down direction in the state which fitted.
The rear end portion of the guard member 80 extends to the rear side of the rear end portion of the fuel tank 40, and from the left end position of the fuel tank 40 or from the left end position in the left-right direction. It is provided in a range extending from the left side to the right side of the right end portion of the vertical transfer cylinder 61 of the unloader 6.
In this way, the fuel tank 40 is disposed in a state where it enters the recessed portion 52 provided at the lower portion of the Glen tank 5, and the front end side is close to the recessed front wall 52 a of the recessed portion 52, and the rear end side is By extending beyond the rear end portion of the body frame 10 to a position close to the rear end portion of the guard member 80, the capacity of the fuel tank 40 is secured as large as possible.

As shown in FIGS. 4 to 6, the fuel tank 40 is formed between a laterally facing surface 44 </ b> B facing the grain tank 5 and an inclined bottom wall 50 </ b> A of the grain tank 5 facing the fuel tank 40. In the triangular space, the separator 45 interposed in the oil supply path from the fuel tank 40 to the engine 20 and the fuel filter device 46 are arranged in the front-rear direction so as to enter the space in a rear view. ing. While the fuel in the fuel tank 40 is sent in the order of the separator 45 and the fuel filter device 46, impurities in the fuel are removed and supplied to the engine 20.

[Support structure]
A support structure for supporting the Glen tank 5 and the unloader 6 will be described.
As shown in FIGS. 3 to 7, the support structure includes a support frame 23 erected on the body frame 10.
The support frame 23 includes a vertical columnar portion 24 formed in a rectangular column shape by a rectangular tube material, a mounting seat plate 25 to the body frame 10 provided on the lower end side, and an unloader provided at the upper end portion of the vertical columnar portion 24. The connecting part 26 and the threshing connecting part 27, the drive mechanism attaching part 28 provided in the middle position in the up-down direction of the vertical columnar part 24, and the attaching bracket 29 of the refueling auxiliary base 7 described later are provided. The support frame 23 configured as described above has the vertical columnar portion 24 fixed to the body frame 10 in an upright posture by connecting the lower mounting seat plate 25 to the body frame 10 by bolts.

As shown in FIGS. 4 and 8, at the upper end portion of the vertical columnar portion 24, a lateral frame 27 </ b> A for connecting to the threshing device 4 is bolted to the left side near the upper end portion of the vertical columnar portion 24. Is fixed integrally with the threshing device 4 via the lateral frame 27A.
Further, on the right side near the upper end of the vertical columnar portion 24, the unloader 6 is supported via the unloader coupling portion 26. As shown in FIGS. 3, 4, and 7, the unloader coupling portion 26 includes a first mounting piece 26 </ b> A that is welded and fixed in a state of extending from the right side of the vertical columnar portion 24 toward the rear side, and the first mounting piece 26 </ b> A. An arcuate second mounting piece 26B is provided so as to face the mounting piece 26A on the right side and be attached so as to embrace the vertical conveying cylinder 61 between the first mounting piece 26A. The unloader connecting portion 26 is supported so as to be relatively rotatable in a state in which the vertical conveyance cylinder 61 is sandwiched between the second mounting piece 26B and the first mounting piece 26A.

A drive mechanism attachment portion 28 for attaching the turning drive mechanism 60 is provided in the middle position of the vertical columnar portion 24.
That is, as shown in FIGS. 6 and 8, the mounting bracket 28A extends horizontally in the middle of the vertical columnar portion 24, and the mounting base 28B of the turning drive mechanism 60 is bolted to the mounting bracket 28A. Yes.
Therefore, the unloader 6 is moved up and down by driving the electric motor 63 by assembling the turning drive mechanism 60 to the mounting base 28B so that the pinion gear 63a of the electric motor 63 meshes with the turning gear portion 61a of the vertical conveyance cylinder 61. It can be arranged in a state where it can be swiveled around the axis Y.

A mounting bracket 29 for the auxiliary fuel supply base 7 described later is provided below the drive mechanism mounting portion 28 in the vertical columnar portion 24.
The mounting bracket 29 is a member formed in a channel shape in plan view and is welded and fixed in a state where the open side faces the vertical columnar portion 24.
The mounting bracket 29 is formed with bolt holes 29a and 29a with retaining nuts at both upper and lower ends, and the mounting support member 70 of the auxiliary fueling base 7 can be connected and fixed with a pair of upper and lower connecting bolts 29b. It is configured.

[Lubrication auxiliary stand]
As shown in FIGS. 3 to 7, the refueling auxiliary base 7 is attached to a position below the turning drive mechanism 60 in the middle position of the vertical columnar portion 24.
This auxiliary fuel supply base 7 is for temporarily placing a heavy supply container when fuel is supplied to the fuel tank 40 so that the fuel can be easily supplied, and is configured as follows. ing.
That is, the refueling auxiliary base 7 includes an attachment support member 70 that is bolted to the attachment bracket 29 provided in the vertical columnar portion 24, and a cradle member 73 that is attached to the attachment support member 70. Yes.

The attachment support member 70 is connected to the attachment bracket 29 of the vertical columnar portion 24 with a base end side connection portion 70A, and an intermediate end connected to the base end side connection portion 70A and extending rearward. A cylindrical portion 70B and a shaft support portion 70C that supports the cradle member 73 in a cantilevered manner on the other end side of the intermediate cylindrical portion 70B are provided.
The cradle member 73 includes a bowl-shaped member 74 made of a pipe material curved in a U-shape, and a flat plate-like base plate 75 provided in a portion curved in the U-shape of the bowl-shaped member 74. It is prepared for. The hook-shaped member 74 is formed such that one end side of the U-shape is longer than the other end side, and a hook-shaped portion 74A on the long end side is supported by the shaft support portion 70C.

The base end side connecting portion 70A of the mounting support member 70 is provided with a seat plate portion 71 having a channel shape similar to the channel-shaped mounting bracket 29 attached to the vertical columnar portion 24 and having a slightly larger lateral width. A channel-shaped opening portion of the seat plate portion 71 is covered with the mounting bracket 29 so as to be fitted from the rear side, and the connecting bolt holes 29a and 29a formed in the mounting bracket 29 and the seat plate portion 71 are formed. The connecting bolts 29b and 29b are inserted into the connecting bolt holes 71a and 71a so as to be fastened and fixed.

The support structure of the collar portion 74A of the cradle member 73 and the shaft support portion 70C of the attachment support member 70 is configured as shown in FIGS.
That is, the shaft support portion 70C includes a support frame portion 72 that includes a pair of left and right projecting pieces 72A and 72B that project toward the rear side opposite to the base end side connection portion 70A and is formed in a channel shape in plan view. Yes. A through hole 76 through which the hook-shaped portion 74A can be inserted is formed in one of the pair of left and right projecting pieces 72A, 72B of the support frame portion 72, and a cylindrical boss portion 77 through which the hook-shaped portion 74A can be inserted. It is formed.

The hook-like portion 74A of the cradle member 73 is inserted into the through hole 76 and the cylindrical boss portion 77 formed in the support frame portion 72 of the attachment support member 70, and the cradle member 73 is inserted into the attachment support member 70. Is pivotally supported so as to swing up and down around the horizontal axis p1.
In a state where the hook-shaped portion 74A is inserted through the through-hole 76 and the cylindrical boss portion 77, a locking body 78 composed of a split pin is attached to the hook-shaped portion 74A. A coil spring that is externally fitted to the hook-shaped portion 74A between the protruding piece 72A on the side of the support frame portion 72 where the through hole 76 is formed and the portion of the hook-shaped portion 74A where the locking body 78 is provided. 79 is mounted in a compressed state.

On the projecting end side of the cylindrical boss portion 77, as shown in FIG. 8, a first engaging groove 77a in which the engaging body 78 can be engaged in a horizontal posture, and as shown in FIG. Is formed with a second engagement groove 77b that can be engaged in a vertical posture. The first engagement groove 77 a and the second engagement groove 77 b are formed at positions that are substantially 90 degrees out of phase with each other in the circumferential direction of the cylindrical boss portion 77.
Of the first engagement groove 77a and the second engagement groove 77b, the second engagement groove 77b is formed deeper than the first engagement groove 77a. As a result, as shown in FIG. 8, when the surface of the base plate 75 of the base member 73 is in the retracted posture along the vertical direction, the locking body 78 is engaged with the first engagement groove 77a, and the base plate 75 is engaged. The retracted posture state is maintained.
As shown in FIG. 9, when the upper surface of the receiving member 73 as the mounting surface of the base plate 75 is in the use posture along the horizontal direction, the locking body 78 is engaged with the second engaging groove 77b, and the base The use posture state of the plate 75 is maintained.
At this time, since the surface of the base plate 75 is in the usage posture along the horizontal direction, the locking body 78 is engaged with the deep second engagement groove 77b, so that the usage posture state of the cradle member 73 is reliably maintained. easy.

As shown in FIGS. 3 to 6, the cradle member 73 configured as described above has an upper surface (mounting surface) of the base plate 75 when the upper surface of the base plate 75 is in a use posture along the horizontal direction. Is preferably located between the upward surface 44A (corresponding to the upper surface) of the fuel tank 40 and the bottom surface 44C (corresponding to the lower surface), preferably the upward surface 44A and the bottom surface 44C of the fuel tank 40. It is desirable that it is set so as to be located at a height of about ½ or a little higher than that.
Further, in the front-rear direction, as shown in FIG. 5, the fuel tank 40 is desirably disposed at a position close to the rear end surface.

When the receiving member 73 is in the retracted posture as shown by phantom lines in FIGS. 3, 4, and 6, the base plate 75 and the bowl-shaped member 74 face the lower part of the rear surface of the fuel tank 40. At the same time, the separator 45 and the fuel filter device 46 are also located on the rear side.
By setting the receiving member 73 in the retracted position in this manner, the auxiliary fuel supply base 7 can be used as a protection means for the fuel tank 40, the separator 45, or the fuel filter device 46.

Further, when the receiving member 73 is in the retracted posture, the base plate 75 and the bowl-shaped member 74 are extended from the rear end portion of the body frame 10 toward the rear side of the body as shown in FIG. The guard member 80 is positioned so as to face the upper side of the lateral frame 82. The flange member 74 and the horizontal frame 82 are relatively close to each other in the front-rear direction, and the rear portion of the fuel tank 40 is protected by both the guard member 80 and the cradle member 73. It is in a state.

A reference numeral 35 shown in FIGS. 4 to 6 is a cover body that covers the periphery of the turning drive mechanism 60, and covers the upper cover portion 36 and the upper cover portion 36 so as to cover the rear side peripheral portion of the vertical conveyance cylinder 61. A hanging cover 37 is provided so as to hang downward from the periphery.

FIG. 10 shows a lock device 90 for suppressing the movement of the Glen tank 5 in a state where the Glen tank 5 exists at the inspection position.
As shown in FIGS. 6 and 10, the locking device 90 is attached to the rear support plate 54 of the glen tank 5 and is configured to be detachable from the fixing bracket 94 attached to the body frame 10.
The locking device 90 is slid in the vertical direction with respect to a crank-shaped mounting bracket 91 welded and fixed to the front surface of the rear support plate 54 and a vertical through hole (not shown) formed in the mounting bracket 91. A lock pin 92 is provided, and a coil spring 93 that elastically biases the lock pin 92 downward is provided.

The state shown in FIG. 6 and the state shown by the phantom line in FIG. 10 are applied to the urging force of the coil spring 93 by locking the upper portion of the lock pin 92 bent in an L shape to the upper end of the mounting bracket 91. Therefore, the lock pin 92 is kept pulled up, that is, in a non-operating state. In this state, the lock pin 92 is not in contact with the fixed bracket 94, and the Glen tank 5 is allowed to swing freely.

In a state where the Glen tank 5 is present at the inspection position, as shown by a solid line in FIG. 10, the portion bent in the L shape of the lock pin 92 is slightly rotated in the horizontal direction to engage with the upper end of the mounting bracket 91. By releasing the stop, the lock pin 92 is pushed downward by the urging force of the coil spring 93.
At this time, if the Glen tank 5 is present at the inspection position, the lower end portion of the lock pin 92 faces the locking hole 94a formed in a part of the fixed bracket 94 as shown in FIG. In position. Therefore, in a state where the Glen tank 5 exists at the inspection position, the lock pin 92 can be inserted / removed in the up / down direction with respect to the locking hole 94a to be locked and unlocked. .

[Another embodiment of the first embodiment]
(1) In 1st Embodiment, although the thing of the structure which employ | adopted the Glen tank 5 as a grain storage part was illustrated, it is not restricted to this. For example, it may have a structure in which grains are collected from a bagging hopper into a straw bag using a known bagging device without using the Glen tank 5. Other configurations may be the same as those in the first embodiment described above.

(2) In the first embodiment, the unloader 6 including the vertical conveyance cylinder 61 and the horizontal conveyance cylinder 62 is used as an apparatus for carrying out the grains from the glen tank 5, and the vertical conveyance cylinder 61 is rotated around the vertical axis Y. However, the present invention is not limited to this. For example, as the unloader 6, although not shown, one having an appropriate structure such as a structure configured to swing up and down around a horizontal axis along the front-rear direction may be adopted. Other configurations may be the same as those in the first embodiment described above.

(3) In 1st Embodiment, although the thing of the structure provided in the state supported by the support frame 23 which supports the upper part of the unloader 6 was illustrated in 1st Embodiment, it is not restricted to this. For example, the refueling auxiliary base 7 is not limited to the support frame 23 of the unloader 6 but may be supported by a dedicated support column provided separately, a support base provided separately, or the like. Other configurations may be the same as those in the first embodiment described above.

(4) In the first embodiment, as a suitable height of the base plate 75 of the auxiliary fuel supply base 7, a structure having a height of about ½ between the upward face 44A and the bottom face 44C of the fuel tank 40 However, the present invention is not limited to this.
In other words, the height of the base plate 75 of the auxiliary fuel supply base 7 may be set so as to be positioned between the upward surface 44A and the bottom surface 44C of the fuel tank 40. A height of about 1/2 of the height is desirable.
Other configurations may be the same as those in the first embodiment described above.

(5) The shape of the fuel tank 40 is not limited to that of the first embodiment. For example, in the present invention, the capacity of the fuel tank 40 may be increased by increasing the height of the fuel tank 40 or increasing the left-right width of the fuel tank 40. At this time, an inclined portion is provided across the upward surface 44A of the fuel tank 40 and the lateral surface 44B on the side facing the glen tank 5 so that the shape of the fuel tank 40 follows the shape of the recessed portion 52. Also good. Thereby, the fuel tank 40 can be enlarged as much as possible.

(6) Although what was applied to the normal type combine was shown in 1st Embodiment, this invention is not limited to a normal type combine, Other harvesting machines, such as a self-detaching type combine, or a transport vehicle and a construction machine It can also be applied to various working machines other than the harvesting machine.

[Second Embodiment]
Hereinafter, a second embodiment which is an example of the present invention will be described with reference to the drawings.
As shown in FIGS. 14 and 15, a traveling body of a normal combine (an example of a “work vehicle”) supports a frame-shaped body frame 111 extending in the longitudinal direction of the body and the body frame 111 from below. A pair of left and right crawler traveling devices 112 are provided. Further, the traveling machine body includes a cutting and conveying unit 113 that can be moved up and down with respect to the machine body frame 111, a threshing device 114, a grain storage unit 115, an unloader 116, an operation unit 117, and a driving unit 118. It has been.

The cutting and conveying unit 113 is provided on the front side of the traveling machine body. The threshing device 114 is provided on the rear side of the cutting and conveying unit 113 in the traveling machine body. The grain storage unit 115 is provided on the side of the threshing device 114 in the traveling machine body. The unloader 116 rises from the rear side of the grain storage unit 115, passes through the upper side of the grain storage unit 115, and extends to the upper side of the cutting and conveying unit 113. The driving unit 117 is provided on the rear side of the cutting and conveying unit 113 and on the front side of the grain storage unit 115 in the traveling machine body. The prime mover 118 is provided below the operation unit 117.

The cutting and feeding unit 113 conveys the cutting reel 119 that scrapes the planted culm in the field by rotation, the cutting blade 120 that cuts the stock of the planted culm, and the harvested cereal toward the rear of the machine body. A lateral feed auger 121 and a feeder 122 that conveys the harvested cereal meal sent by the lateral feed auger 121 obliquely rearward and upward toward the entrance of the threshing device 114 are provided.

As shown in FIG. 15, the grain storage unit 115 is swingable around the first longitudinal axis Y1 near the rear end of the traveling aircraft, and is in a normal state stored inside the aircraft, It can be switched to an open state deployed toward the outside of the machine body. Maintenance of the inside of the machine body hidden by the grain storage unit 115 in the normal state can be easily performed simply by opening the grain storage unit 115.

14 and 15, the driving unit 117 is provided with a driving seat 123 on which a driver is seated, a plurality of operation levers 124 for inputting various operations, and the like.

The ordinary combine harvester harvests the planted cereals in the field by the reaping and conveying unit 113 while the traveling body is traveling by the crawler traveling device 112, threshing the whole culm of the harvested cereals by the threshing device 114, and converting the grains into grains. It is comprised so that it may store in the grain storage part 115. FIG. The grain stored in the grain storage unit 115 is configured to be discharged to the outside by the unloader 116.

As shown in FIGS. 16 to 18 and 20, the prime mover 118 includes an engine 125 (an example of a “device to be cooled”), a radiator 126, a cooling fan 127, a dustproof case 128, an interface. Cooler 129 (an example of “air-cooled cooling device”), work machine oil cooler 130 (an example of “another air-cooled cooling device”), and mission oil cooler 131 (an example of “another air-cooled cooling device”) ) And are provided.

As shown in FIG. 17 and the like, the engine 125 is supported on the upper part of the body frame 111. The engine 125 is housed in a hood 132 (corresponding to a “frame body”) that supports the driver's seat 123 from below. The bonnet 132 has a laterally facing upper surface part 133 positioned above the engine 125 and a longitudinally facing side part 134 that is connected to the laterally outer side of the upper surface part 133. An opening 135 for ventilation is formed in the side surface portion 134. Further, the bonnet 132 is formed so as to project laterally outward such that the side surface portion 134 is positioned on the laterally outer side of the body frame 111 with respect to the laterally outermost front and rear frame 111A extending along the front-rear direction of the body frame 111.

The radiator 126 shown in FIGS. 16 to 18 and 20 is configured to cool the cooling water of the engine 125. The radiator 126 is located on the lateral outer side of the engine 125. The radiator 126 is accommodated in the hood 132. The radiator 126 is connected to the engine 125 by an upper hose 126A and a lower hose 126B. Upper hose 126 </ b> A introduces cooling water heated by engine 125 into radiator 126. The lower hose 126B guides the cooling water cooled by the radiator 126 back to the engine 125 and returns it.

The cooling fan 127 is configured to cool the engine 125, the radiator 126, the intercooler 129, the work machine oil cooler 130, and the mission oil cooler 131. The cooling fan 127 is driven by a belt transmission mechanism 137 connected to the output shaft 136 of the engine 125. As shown in FIG. 17, the driving of the cooling fan 127 generates wind in the direction from the radiator 126 toward the engine 125. The cooling fan 127 is disposed outside the body with respect to the engine 125 and inside the body with respect to the radiator 126.

The intercooler 129 shown in FIGS. 16 to 18 and 20 is configured to cool the compressed air supplied to the engine 125. The intercooler 129 is connected to the engine 125 by an outward pipe 138 (an example of “flexible hose”) and a return pipe 139 (an example of “flexible hose”). The forward path pipe 138 and the return path pipe 139 are connected to the upper end portion of the intercooler 129. The outgoing pipe 138 and the return pipe 139 are formed of a molded hose and have flexibility and shape retention. The outgoing pipe 138 introduces air compressed by the supercharger into the intercooler 129.
The return pipe 139 introduces the compressed air cooled by the intercooler 129 into the engine 125.

16 to 18 and FIG. 20, the working machine oil cooler 130 is configured to cool the working oil of the working hydraulic circuit device for driving the cutting and conveying unit 113 and the like. The work machine oil cooler 130 is provided inside the body of the intercooler 129 and outside the body of the radiator 126. The work machine oil cooler 130 is disposed so as to overlap with the intercooler 129 in a side view (FIG. 16). The working machine oil cooler 130 is connected to a working hydraulic circuit device as a device to be cooled by a first introduction pipe 140 and a first outlet pipe 141 which are flexible hoses. The first introduction pipe 140 and the first outlet pipe 141 are connected to the lower end portion of the work machine oil cooler 130. The first introduction pipe 140 and the first lead-out pipe 141 are formed of a molded hose and have flexibility and shape retention. The first introduction pipe 140 introduces hydraulic oil from the work machine system hydraulic circuit device to the work machine oil cooler 130. The first lead-out pipe 141 guides the hydraulic oil cooled in the work implement oil cooler 130 back to the hydraulic circuit device of the work implement system.

The mission oil cooler 131 shown in FIG. 16 to FIG. 18 and FIG. 20 is configured to cool the hydraulic fluid of the transmission that performs gear shifting. The mission oil cooler 131 is provided inside the airframe of the intercooler 129 and outside the airframe of the radiator 126. The mission oil cooler 131 is located below the work implement oil cooler 130. The mission oil cooler 131 is connected to a transmission as a device to be cooled by a second introduction pipe 142 and a second outlet pipe 143 that are flexible hoses. The second inlet pipe 142 and the second outlet pipe 143 are connected to the lower end portion of the mission oil cooler 131. The second introduction pipe 142 and the second lead-out pipe 143 are formed of a molded hose and have flexibility and shape retention. The second introduction pipe 142 introduces hydraulic oil from the transmission into the mission oil cooler 131. The second outlet pipe 143 guides the hydraulic oil cooled by the mission oil cooler 131 back to the transmission.

As shown in FIG. 16, the first inlet pipe 140 and the first outlet pipe 141 connected to the work machine oil cooler 130, and the second inlet pipe 142 and the second outlet pipe 143 connected to the mission oil cooler 131. Are arranged in a state of penetrating through a through-hole portion 144 formed in the lateral surface portion at the lower lateral side of the bonnet 132.

As shown in FIG. 14 to FIG. 18, the dustproof case 128 is disposed on the lateral outer side of the bonnet 132. The dustproof case 128 has a first dustproof net 145 (corresponding to a “dustproof net”) that covers the outside of the radiator 126 in a state that allows ventilation and blocks the passage of dust. As shown in FIG. 17, the dustproof case 128 includes a second dustproof net 146 that allows ventilation from the rear side of the operation unit 117 and prevents the passage of dust. As shown in FIGS. 16 and 18, the dustproof case 128 is supported by a pair of upper and lower vertical support shafts 147 formed on the front end side of the bonnet 132. A pair of upper and lower locks 148 are provided at the rear end of the dustproof case 128.

As shown in FIG. 17 and the like, when the dustproof case 128 is in a closed state covering the lateral outer side of the bonnet 132, the first dustproof net 145 causes the intercooler 129, the work machine oil cooler 130, and the mission oil cooler 131. , Covering the lateral outer side of the radiator 126. That is, the intercooler 129 is located between the first dust net 145 and the radiator 126 when a dustproof case 128 described later is in a closed state. The dustproof case 128 can be held in a closed state by a lock 148. On the other hand, the dustproof case 128 is configured so that the dustproof case 128 can be opened and swung by releasing the lock 148. In addition, as shown in FIG. 15, the dust-proof case 128 releases the lock tool 148 and thereby corresponds to the second longitudinal axis Y2 (corresponding to the “vertical axis”) that is the center of the support shaft 147. ) It can be rotated around. When the dustproof case 128 is opened and swung, the lateral outer surface of the intercooler 129, the lateral outer surface of the work machine oil cooler 130, the lateral outer surface of the mission oil cooler 131, and the lateral outer surface of the radiator 126 are exposed.

[Intercooler support structure]
As shown in FIG. 16 and the like, a vertically long ladder-like member 149 assembled in a frame shape is fixed to the inner surface of the intercooler 129. The ladder member 149 includes a horizontal upper horizontal frame portion 150, a horizontal lower horizontal frame portion 152 positioned below the upper horizontal frame portion 150, and a pair of vertical frame portions 153. Yes. The upper end portion of the intercooler 129 is attached and fixed to the vertical frame portion 153 by a pair of first attachment portions 153A. Moreover, the lower end part of the intercooler 129 is attached and fixed to the vertical frame part 153 by a pair of second attachment parts 153B. The upper horizontal frame portion 150 and the lower horizontal frame portion 152 are fixed with their both ends spanned over a pair of vertical frame portions 153. The upper horizontal frame part 150 is detachably attached to the side part 134 of the bonnet 132 by a pair of first butterfly bolts 154. The lower horizontal frame portion 152 includes a contact portion 155 and a sandwiched portion 156. Below the intercooler 129, between the pair of vertical frame portions 153, an open portion 157 is formed that allows air to flow in and out of the body.

As shown in FIGS. 16 to 18, the forward pipe 138 and the backward pipe 139 connected to the intercooler 129 are supported by the penetration support portion 158 provided in the hood 132. The intercooler 129 is supported on the engine 125 side by the forward path pipe 138 and the return path pipe 139.

[About the penetration support part]
As shown in FIGS. 16 to 19, the penetration support portion 158 has a vertical surface portion 159 and a horizontal surface portion 160 connected to the vertical surface portion 159, and is formed in a substantially L-shape as a whole. . The penetration support part 158 supports the upper side of the forward path pipe 138 and the return path pipe 139 when attached to the bonnet 132. The penetration support portion 158 is detachable from the bonnet 132. A pair of bent first insertion portions 161 are formed on the vertical surface portion 159 of the through support portion 158. In addition, the lateral surface portion 160 of the penetration support portion 158 is formed with a second insertion portion 162 that is bent in an L-shape with the center portion being lowered downward, leaving both ends.

As shown in FIG. 19 and the like, the penetration support portion 158 is moved along the lateral direction of the machine body, and the pair of first insertion portions 161 are inserted into the pair of insertion holes 163 formed in the side surface portion 134 of the bonnet 132. While inserting each, and inserting the 2nd insertion part 162 in the opening edge part 164 formed in the upper surface part 133 of the bonnet 132, the penetration support part 158 can be hold | maintained in the bonnet 132. FIG. That is, the penetration support part 158 can be attached and detached by simply moving the penetration support part 158 along the lateral direction of the machine body with respect to the bonnet 132.

As shown in FIGS. 16, 17, etc., when the penetration support portion 158 is attached to the bonnet 132, the forward path pipe 138 and the return path pipe 139 connected to the intercooler 129 each have an annular rubber member 165. The upper support portion 166 of the penetration support portion 158 and the lower support portion 167 of the bonnet 132 are supported.

[Regulatory members]
As shown in FIGS. 17 to 20, the bonnet 132 is provided with a regulating member 168 that regulates the movement of the forward path pipe 138 and the backward path pipe 139 when the intercooler 129 is moved open. The regulating member 168 is formed in a rod shape. The restricting member 168 is fixed to a location closer to the intercooler 129 than the opening edge 164 formed on the upper surface portion 133 of the bonnet 132.

[Support structure of work equipment oil cooler and mission oil cooler]
As shown in FIG. 16 and the like, the work machine oil cooler 130 and the mission oil cooler 131 are fixed to a beam-like member 169 assembled in a frame shape. The cross-shaped member 169 includes a pair of first horizontal parts 170 for fixing the upper end part of the oil cooler 130 for work implements to the upper horizontal part 170, the horizontal lower horizontal part 171 located below the upper horizontal part 170, and the upper horizontal part 170. A pair of second fixing portions 173 that fix the lower end of the work machine oil cooler 130 to the first fixing portion 172 and the lower horizontal portion 171, and a pair of third fixing portions 174 that fix the transmission oil cooler 131 to the lower horizontal portion 171. Is provided. The upper horizontal portion 170 is detachably attached to the side surface portion 134 of the bonnet 132 with a pair of second butterfly bolts 175. A pair of stays 176 having a standing portion that rises upward laterally outward is fixed to the side surface portion 134 of the bonnet 132. The lower horizontal portion 171 is dropped into the holding space of the pair of stays 176 and is supported by the stay 176 from below. By dropping the lower horizontal portion 171 into the holding space of the stay 176, the lateral movement of the lower horizontal portion 171 on the mission oil cooler 131 side is restricted.

[Maintenance of intercoolers, etc.]
As shown in FIG. 17 and the like, when the dustproof case 128 is in the closed state, the lower presser portion 177 formed on the inner surface of the machine body at the lower end portion of the dustproof case 128 and the lower end portion of the side surface portion 134 of the bonnet 132 The sandwiched portion 156 of the ladder member 149 fixed to the intercooler 129 is sandwiched.
Further, the vertical surface portion 159 of the penetrating support portion 158 is sandwiched between the upper pressing portion 178 formed on the dustproof case 128 and the upper support portion 166 of the bonnet 132. Thereby, when the dustproof case 128 is in the closed state, the penetration support portion 158 is prevented from falling off from the hood 132.
When the dust-proof case 128 is rotated to the front side around the second longitudinal axis Y2 to be opened and swung, the sandwiched portion 156 is released and the intercooler 129 and the work implement oil cooler are released. 130, the outer side surfaces of the mission oil cooler 131 and the radiator 126 are exposed.

Next, as shown in FIG. 17 and FIG. 20, the two first butterfly bolts 154 that attach the upper horizontal frame portion 150 on the intercooler 129 side to the side surface portion 134 of the bonnet 132 are removed, and the ladder-like member 149 is removed. The bonnet 132 can be moved freely. Next, the penetration support portion 158 is pulled out to the lateral outer side of the body and removed from the bonnet 132, and the forward pipe 138 and the return pipe 139 are not restrained by the bonnet 132, and the forward pipe 138 and the return pipe 139 can be freely deformed to some extent. To. In this state, the intercooler 129 is supported only by the forward pipe 138 and the backward pipe 139. That is, the intercooler 129 is configured to be rotatable by the deformation of the forward pipe 138 and the backward pipe 139. The intercooler 129 can be rotated with the vicinity of the penetration support portion 158 as a base point by deformation of the forward path pipe 138 and the return path pipe 139. In this way, the intercooler 129 is configured to be movable in a direction different from the direction in which the dustproof case 128 is moved.

Next, as shown in FIG. 17 and FIG. 20, the two second butterfly bolts 175 that attach the work-piece oil cooler 130 and the transmission-like member 169 on the mission oil cooler 131 side to the bonnet 132 are removed. Then, the bar-like member 169 is slightly lifted to lift the lower horizontal portion 171 from the stay 176. In this state, the work machine oil cooler 130 and the mission oil cooler 131 are supported only by the first introduction pipe 140, the first outlet pipe 141, the second inlet pipe 142, and the second outlet pipe 143. .

In this state, the work machine oil cooler 130 and the mission oil cooler 131 can be moved in a different direction from the opening movement direction of the intercooler 129 and the opening movement direction of the dustproof case 128. In other words, the intercooler 129 is swung upward from the restriction member 168 with which the forward pipe 138 and the backward pipe 139 come into contact, and the work machine oil cooler 130 and the mission oil cooler 131 are first introduced. The tube 140, the first lead-out pipe 141, the second lead-in pipe 142, and the second lead-out pipe 143 are swung downward with the through hole portion 144 in contact with the base point. Since the deformation of the forward pipe 138 and the backward pipe 139 is regulated by the regulating member 168, excessive bending is caused at the connecting portion of the forward pipe 138 to the supercharger and the connecting portion of the backward pipe 139 to the engine 125. The load is not applied. Further, since the first introduction pipe 140, the first outlet pipe 141, the second inlet pipe 142, and the second outlet pipe 143 have a certain degree of shape retention, the working machine oil cooler 130 and the mission oil cooler are provided. 131 does not hang more than necessary.

With the intercooler 129 opened and swung, and with the work implement oil cooler 130 and the mission oil cooler 131 opened and swung, the work machine oil cooler 130 and the mission oil cooler 131 side rail-shaped The upper end portion of the upper horizontal portion 170 of the member 169 is abutted against and locked to the contact portion 155 in the lower horizontal frame portion 152 of the ladder-like member 149 on the intercooler 129 side. That is, as shown in FIGS. 17 and 20, the intercooler 129 in a state of being rocked open, the oil cooler 130 for work implements and the oil cooler 131 of a mission being locked together are locked together. Accordingly, the intercooler 129, the work machine oil cooler 130, and the mission oil cooler 131 are both configured to be held in an open and swinging state.

In this state, as shown in FIG. 20, the lateral outer surface and the lateral inner surface of the intercooler 129, the lateral outer surface and the lateral inner surface of the work machine oil cooler 130, and the lateral outer surface and the lateral inner surface of the mission oil cooler 131. The lateral outer surface of the radiator 126 can be exposed. Thereby, maintenance such as cleaning by blowing air can be easily performed on the intercooler 129, the work machine oil cooler 130, the mission oil cooler 131, and the radiator 126.

[Another embodiment of the second embodiment]
Hereinafter, another embodiment in which a change is made to the second embodiment will be exemplified. Each of the following different embodiments is the same as the second embodiment except for the matters described. Further, the second embodiment and each of the following different embodiments can be appropriately combined as long as no contradiction occurs. The scope of the present invention is not limited to the second embodiment and each of the following separate embodiments, and can be appropriately modified without departing from the object of the present invention.

(1) Although the dustproof case 128 is configured to be horizontally movable and the intercooler 129 is configured to be vertically movable in the second embodiment, the present invention is not limited to this. For example, the dustproof case 128 may be configured to be vertically movable and the intercooler 129 may be configured to be horizontally movable. That is, one of the dustproof case 128 and the intercooler 129 is configured to be movable up and down, and one of the dustproof case 128 and the intercooler 129 is configured to be horizontally movable. It is preferable. In addition, another vertical support shaft is provided behind the vertical support shaft 147 that rotatably supports the dustproof case 128, and the intercooler 129 is rotatably supported on the other vertical support shaft. You may make it do. In this case, the dustproof case 128 is moved to the front side, the intercooler 129 is moved to the rear side, and the intercooler 129 is configured to be movable in a direction different from the opening movement direction of the dustproof case 128. It will be a thing.

(2) In the second embodiment, the dustproof case 128 and the intercooler 129 are illustrated as being rotatable, but is not limited thereto. For example, one or both of the dustproof case 128 and the intercooler 129 may be configured to be slidable.

(3) In the second embodiment, the intercooler 129 is illustrated as being rotatable by deformation of the forward pipe 138 and the backward pipe 139, which are “flexible hoses”, but is not limited thereto. Absent. For example, the intercooler 129 may be configured to be rotatable around the support shaft.

(4) In the second embodiment, the penetration support portion 158 that contacts only the upper half of the forward tube 138 and the backward tube 139, which are “flexible hoses”, is illustrated, but is not limited thereto. For example, it may be another penetration support portion 158 that covers the entire circumference of the outer pipe 138 and the return pipe 139 that are “flexible hoses”.

(5) In the second embodiment, the intercooler 129 as the “air-cooled cooling device” is rotatable upward, and the work machine oil cooler 130 as the “another air-cooled cooling device”. In addition, the transmission oil cooler 131 is illustrated as being rotatable downward, but is not limited thereto. For example, the intercooler 129 may be configured to be rotatable downward, and the work machine oil cooler 130 and the mission oil cooler 131 may be configured to be rotatable upward. That is, any one of the intercooler 129, the work machine oil cooler 130, and the transmission oil cooler 131 can be turned upward, and the intercooler 129, the work machine oil cooler 130, It is preferable that either one of the mission oil cooler 131 is rotatable downward.

(6) In the second embodiment, the intercooler 129 as the “air-cooled cooling device” in the open swing state and the working machine oil as the “another air-cooled cooling device” in the open swing state. When the cooler 130 and the mission oil cooler 131 are locked to each other, both the intercooler 129, the work machine oil cooler 130, and the mission oil cooler 131 are held in an open swing state. Although illustrated, it is not limited to this. For example, a dedicated holding member may be provided to hold the intercooler 129, the work machine oil cooler 130, and the mission oil cooler 131 in a state where they are opened and swung.

(7) In the second embodiment, the intercooler 129 is exemplified as “an air-cooled cooling device”, and the work machine oil cooler 130 and the mission oil cooler 131 are exemplified as “another air-cooled cooling device”. However, it is not limited to this. The correspondence between “air-cooled cooling device” and “another air-cooled cooling device” was changed, or other devices were placed as “air-cooled cooling device” and “another air-cooled cooling device”. May be.

(8) In the second embodiment, the present invention is applied to the ordinary combine. However, the present invention is not limited to the ordinary combine, and the self-decomposing combine, the tractor, and the mowing that thresh only the head of the cereal. It can also be used for various work vehicles such as machines.

[Third Embodiment]
Hereinafter, a case where the third embodiment of the present invention is applied to a normal combine which is an example of a work machine will be described with reference to the drawings.
As shown in FIGS. 21 and 22, the combine is provided with a threshing device 203 and a grain tank 204 for grain recovery arranged side by side on a traveling machine body 202 including a pair of left and right crawler traveling apparatuses 201. In addition, a driving unit 205 is provided in front of the grain tank 204. A feeder 206 for conveying the harvested cereal rice cake is connected to the front part of the threshing device 203 so as to be swingable up and down around the horizontal axis, and a cutting part 207 having a cutting width substantially equivalent to the horizontal width of the machine body is connected to the front end of the feeder 206. Has been. A grain discharging device 208 for carrying out the grains stored in the grain tank 204 to the outside of the machine body is provided.

The mowing unit 207 includes a rotating reel 209 that scrapes the planted cereals backward, a clipper-type mowing device 210, a transverse auger 211 that transfers the mowing cereals to the intermediate side in the body width direction, and the like. It is configured such that the cereals harvested by 210 can be laterally fed by the lateral feed auger 211 and supplied to the feeder 206.

21 and 25, a driving section 212 is provided on the lower side of the driving section 205. The prime mover 212 includes an engine 213, an engine cooling radiator 214, a cooling fan 215 that generates cooling air for the radiator 214, and the like. The upper side of the prime mover 212 is covered with an engine bonnet 216, and a driver seat 217 is supported on the upper side of the engine bonnet 216.

A dust-proof cover 218 for sucking outside air by the ventilation action of the cooling fan 215 and supplying the air to the radiator 214 is provided at a position on the outer side of the driving unit 212 in the lateral direction of the body. . The dustproof cover 218 includes a porous portion 219 for intake at a location outside the body.

As shown in FIGS. 21 and 22, the driving unit 205 includes a front panel 220 on the front side of the fuselage seat 217, and a side panel 221 on the inner side of the driver seat 217 in the lateral direction of the fuselage. Yes. The front panel 220 includes a steering lever 222 and the like, and the side panel 221 includes a main transmission lever 223, an auxiliary transmission lever 224, a working clutch lever 225, and the like.

Next, the crawler traveling device 201 will be described.
As shown in FIG. 23, the crawler traveling device 201 includes a drive wheel 226 located on the front side of the machine body, a tension wheel 227 located on the rear side of the machine body, and a plurality of grounding wheels 228 located therebetween. An upper roller 229 located on the upper side and a crawler belt 230 wound around each of the ring bodies 226 to 229 are provided.

The driving wheel 226 and the upper wheel 229 are rotatably supported by the machine body frame 231, and the plurality of grounded wheels 228 and the tension wheel 227 are rotatably supported by the track frame 232. The track frame 232 is supported by the body frame 231 so as to be vertically movable while maintaining a parallel or substantially parallel posture.

Rotating fulcrum shafts 233 and 234 that penetrate in the lateral direction of the body and are rotatably supported are provided at two positions on the lower side of the body frame 231. Operation arms 235 and 236 that rotate together with the rotation fulcrum shafts 233 and 234 are provided at positions inside the body of the rotation fulcrum shafts 233 and 234 on both the front and rear sides, and the front and rear operation arms 235 and 236 are pivoted by a connecting rod 237. It is connected to a branch.

Oscillation links 238 and 239 that rotate together with the rotation fulcrum shafts 233 and 234 are provided at positions outside the machine body of the rotation fulcrum shafts 233 and 234 on both the front and rear sides. The frame 232 is pivotally connected. The swing link 239 on the rear side and the track frame 232 are pivotally connected via an auxiliary link 240 for preventing drooling.

A hydraulic cylinder 241 is pivotally connected between the swinging end of the operation arm 236 on the rear side and the fixed portion of the body frame 231. By operating the hydraulic cylinder 241 to expand and contract, the operation arms 235 and 236 and the swing links 238 and 239 located on both the front and rear sides rotate integrally around the axis of the rotation fulcrum shafts 233 and 234, respectively. The track frame 232 is configured to move up and down relative to the body frame 231 while maintaining a horizontal posture.

As shown in FIG. 24, the rotation fulcrum shaft 234 on the rear side protrudes outward from the swinging link 239, and the upper roller 229 is rotatably fitted on the protrusion 234a. . The upper roller 229 is configured as an outer wheel, and includes a pair of left and right rolling guide portions 229a and 229b that roll and guide the left and right lateral outer portions of the cored bar protrusion 242 in the crawler belt 230.

Of the left and right rolling guide portions 229a and 229b of the upper rolling wheel 229, the lateral width of the outer rolling guide portion 229a located outside the machine body is wider than the lateral width of the inner rolling guide portion 229b located inside the machine body. Is formed. Specifically, the lateral width L1 of the outer rolling guide portion 229a is set to be larger than the distance L2 between the core metal projections 242 on the left and right sides.

This configuration makes it easier to avoid damaging the upper wheel 229 when traveling on a wetland. More specifically, when traveling on a wetland, mud enters between the body frame 231 and the crawler belt 230, the crawler belt 230 is pushed laterally outward, and the core metal protrusion 242 is paired with the left and right sides of the upper roller 229. May come off between the rolling guide portions 229a and 229b and ride on the outer peripheral portion of the outer rolling guide portion 229a. Then, the outer rolling guide portion 229a may enter between the left and right core metal protrusions 242. In this state, as shown in FIG. 24, the left and right core metal protrusions 242 have a pair of left and right core metal protrusions 242 as shown in FIG. It is impossible to return to the original state located between the rolling guide portions 229a and 229b, and the outer rolling guide portion 229a may be greatly damaged in a short period of time.

However, as described above, the lateral width L1 of the outer rolling guide portion 229a is set to be larger than the interval L2 between the left and right cored bar projections 242. If the rolling guide portion 229a does not enter and the mud disappears, the crawler belt 230 returns to the original state (the state shown in FIG. 24) where the crawler belt 230 is appropriately rolled and guided by the upper rolling wheel 229.

As shown in FIGS. 21 and 22, a canopy 243 that covers the upper portion of the operation unit 205 is provided. The canopy 243 includes a support frame 244 supported by the machine body, and a flexible sheet 246 that is stretched over the support frame 244 to form a roof portion 245 and has flexibility.

As shown in FIG. 21, the support frame 244 extends in a cantilevered manner from the upper end of the support column 247 supported by the combine traveling machine body 202 toward the front of the machine body. A flexible sheet 246 is provided in a state of being stretched on the support frame 244. The support column 247 is formed in a rectangular tube shape, and is supported by being inserted and inserted from above into a rectangular tube-shaped support member 248 attached to the front wall portion 204A of the grain tank 204 in a fixed state.

As shown in FIGS. 21 and 25, the support member 248 is connected to the front wall portion 204 </ b> A of the grain tank 204 via a receiving member 249 having a substantially L-shaped cross section at the lower end portion, and a middle portion in the vertical direction has a substantially U cross section. A support base 251 fixed to the front wall portion 204 </ b> A of the grain tank 204 is connected via a letter-shaped bracket 250.

The support column 247 is inserted and inserted into the support member 248 from the upper side, and the vertical position is fixed by the retaining pin 252 so that the removal is prevented. Although not shown, a plurality of insertion holes through which the retaining pins 252 on the column 247 side are inserted are formed at intervals in the vertical direction, and the insertion location is changed by removing the retaining pins 252. Thus, the vertical position of the entire support 247, that is, the canopy 243, can be changed in a plurality of stages.

As shown in FIG. 26, the support frame 244 includes a roof frame 253 as a peripheral frame forming body formed by bending a round pipe material into a rectangular frame shape in plan view, and a lateral side portion on both the left and right sides of the roof frame 253. And a horizontal frame 254 as a horizontal connection body.
The horizontal frame 254 is made of a round pipe material, and is connected over a longitudinally extending portion 253a as a lateral side portion extending in the longitudinal direction on both the left and right sides of the roof frame 253.

A horizontal reinforcing member 255 in the form of a horizontal plate is integrally provided continuously on the front side of the machine body of the horizontal frame 254 over the entire length in the horizontal width direction. Further, an oblique reinforcing body 256 extending in an oblique direction is connected across the front side of the laterally intermediate portion of the lateral reinforcing body 255 and the middle portion of the front and rear extending portions 253a on the left and right sides of the roof frame 253.

A pair of front and rear sheet receiving members 257 that support the flexible sheet 246 in a state of being bent so that the center side is positioned upwardly across the front and rear extending portions 253a on both the left and right sides of the roof frame 253 are bridged and connected. Yes. The pair of front and rear sheet receiving members 257 are provided in a state where they are arranged at appropriate intervals in the front-rear direction so that the middle portion of the round pipe material having a smaller diameter than the round pipe material constituting the roof frame 253 is curved upward. Is formed.

The support frame 244 is supported with respect to the support column 247 so that it can swing around the horizontal axis P1 and can be adjusted in posture at any of a plurality of (four stages) vertical swing positions. An engagement type positioning mechanism K that can hold the vertical swing position of the support frame 244 at the set position is provided.

As shown in FIG. 21, the support column 247 is curved so that the upper side faces the front side of the aircraft. As shown in FIGS. 28 to 31, a square pipe-like laterally extending portion 258 extending in the lateral direction is connected to the distal end portion of the support column 247. Support plates 259 extending in the front-rear direction in a vertical orientation are connected to the left and right sides of the laterally extending portion 258. A support shaft 260 is installed over the left and right support plates 259.

A cylindrical member 261 extending over the substantially entire length of the support shaft 260 is fitted so as to be relatively rotatable, and the cylindrical member 261 and the support frame 244 are connected via a pair of left and right brackets 262. The left and right brackets 262 are made of vertically oriented plates, and are connected to the lower surfaces of the horizontal frame 254, the horizontal reinforcing body 255, and the diagonal reinforcing body 256, and are integrally connected to the support frame 244.

The support shaft 260 is supported by the support column 247 via the left and right support plates 259 and the laterally extending portions 258, and the cylindrical member 261 is rotatably fitted to the support shaft 260. Since the cylindrical member 261 and the support frame 244 are connected, the support frame 244 is supported on the upper portion of the support column 247 so as to be rotatable around the horizontal axis P1 of the support shaft 260.

As shown in FIG. 29, four engagement grooves 264 are formed at predetermined angles around the horizontal axis P1 in the insertion holes 263 formed in the left and right support plates 259, whereby the roof portion The tilt angle of 245 can be changed and adjusted in four stages. A guide groove 265 located on the circumference centering on the horizontal axis P1 is formed at a position opposite to the engagement groove 264 in the insertion hole 263.

A support shaft 266 is rotatably supported over the upper part of the front portion of the pair of left and right brackets 262. The pair of left and right arm members is located on the inner side of the left and right brackets 262 in the lateral width direction. 267R and 267L are supported. A locking rod 268 made of a round bar material is installed over the free end side portions of the pair of arm members 267R and 267L. The locking rod 268 passes through the insertion holes 263 formed in the left and right support plates 259. Each is provided in a state of insertion.

One arm member 267L (left side) is longer than the other arm member 267R (right side) 267R and extends in a substantially L shape in a side view, and a resin is attached to the extending end of the arm member 267L. A grip portion 269 covered with a cover made of a metal is formed.

As shown in FIGS. 29 and 30, a spring 272 is stretched over a spring receiver 270 provided on the other (right) arm member 267R and a spring receiver 271 provided on the cylindrical member 261. Due to the biasing force, the pair of arm members 267R and 267L is pivotally biased around the axis P2 of the support shaft 266. Due to the biasing force of the spring 272, the locking rod 268 enters one of the plurality of engagement grooves 264 and is biased toward the entry side. That is, the locking rod 268 is held in position by the biasing force of the spring 272, and the roof portion 245 is held in position.

When changing the posture of the roof portion 245, the grip portion 269 is operated against the urging force of the spring 272 to release the locking of the locking rod 268 to the engaging groove 264 and the posture of the roof portion 245. Then, when the operation of the grip portion 269 is stopped and the locking rod 268 is locked to another engaging groove 264, the gripping portion 269 is held at that position. The operator can change the posture by operating the auxiliary operation tool 277 provided in the front-rear extension portion 253a on the left side with the left hand while operating the grip portion 269 with the right hand. Therefore, by selectively locking the locking rod 268 in any of the four engagement grooves 264, the roof portion 245 can be changed and set to any one of the four swing positions.

A coil spring 273 is provided as an urging mechanism that urges the support frame 244 to move upward around the horizontal axis P1 across the support frame 244 and the support column 247. As shown in FIG. 30, a spring receiver 274 having a substantially U shape in plan view is integrally connected to a portion corresponding to the left and right brackets 262 on the rear side surface of the laterally extending portion 258. An adjustment screw 275 is provided at the rear upper portion of the left and right spring receivers 274, and a coil spring 273 is stretched over one end of the adjustment screw 275 and the upper portion of the left and right brackets 262. Has been.

The coil spring 273 is stretched in a state in which a tensile force is applied, and the support frame 244 is urged to rotate upward around the horizontal axis P <b> 1 by the tensile force of the coil spring 273. With such a configuration, it is possible to prevent rattling caused by airframe vibration or the like at an engagement portion between the locking rod 268 and the engagement groove 264.

The adjustment screw 275 passes through the rear upper portion of the spring receiver 274 and can be fixed to the spring receiver 274 by tightening the nut 276 from both front and rear sides, and the nut 276 is loosened to change the position in the front-rear direction. Thus, the tension of the coil spring 273 can be changed and adjusted. With such a configuration, an engagement type positioning mechanism K is configured.

Next, the flexible sheet 246 that forms the roof portion 245 will be described.
As shown in FIG. 26, the flexible sheet 246 includes an upper surface portion 246A that forms the ceiling surface of the roof portion 245, and a vertical side surface portion 246B that is continuous with the outer peripheral portion of the upper surface portion 246A. . The upper surface portion 246A is supported by the roof frame 253, and is provided in a rectangular shape in plan view. The side surface portion 246B is formed over the entire periphery of the upper surface portion 246A in a state of being continuously lowered from the upper surface portion 246A and hanging downward.

The flexible sheet 246 is composed of a sheet-like member made of a material called tarpaulin, which is created by sandwiching a polyester fiber fabric from both sides with a soft synthetic resin film. This tarpaulin is a well-known material used as a hood or the like for covering a tent or a carrier platform because it has waterproofness and high strength.

A mounting portion 278 for the support frame 244 is provided on the inner surface side of the flexible sheet 246.
A plurality of mounting portions 278 are provided along the frame shape of the support frame 244 in a state of being positioned inside the frame-shaped support frame 244 in plan view.

That is, as shown in FIG. 27, a long sheet-like mounting member 279 extending along the frame shape of the support frame 244 is provided. The attachment member 279 is attached to a location that is slightly closer to the inside than the peripheral edge of the upper surface portion 246A of the flexible sheet 246. The attachment member 279 is configured by a sheet-like member made of a material called tarpaulin, like the flexible sheet 246, and is attached in a fixed state by welding with the flexible sheet 246.

As shown in FIG. 32, the attachment member 279 is formed by bending and overlapping the sheet-like body so that the synthetic resin-like string-like body 280 extending along the longitudinal direction is sandwiched. The vicinity of the shape body 280 is sewn in the longitudinal direction, and is narrow along the inner and outer directions of the frame shape and is formed in an elongated shape along the frame shape. Thus, the string-like body 280 is internally provided to reinforce the strength.

The attachment member 279 is attached to the flexible sheet 246 by welding a region having a predetermined width at the inside portion of the frame shape over the entire length direction using a high frequency welder (not shown). The high-frequency welder uses induction heating and melt-bonds the two sheet portions on which the mounting members 279 are superimposed and the flexible sheet 246 in a state where a total of three sheets are overlapped.

The mounting member 279 is provided with a plurality of mounting portions 278 at appropriate intervals along the longitudinal direction, and the mounting portion 278 is provided with an insertion hole 281. As shown in FIG. 32, the insertion hole 281 is configured by a grommet member 282 that forms a central opening by caulking and fixing ring-shaped metal fittings on both sides of the sheet-like body.

The flexible sheet 246 is attached to the support frame 244 by connecting the insertion hole 281 and the support frame 244 with a string-like member 283. As shown in FIG. 33, the string-like member 283 is configured by a cord band having a well-known structure used when bundling electric cords and the like. The cord band has a serrated locking portion 284 formed at one end, and when the locking portion 284 is inserted into the other end, the cord band can pass only in the insertion direction and prevents movement in the reverse direction to prevent it from coming off. Part 285.

As shown in FIG. 32, the string-like member 283 passes through the insertion hole 281 provided in the mounting member 279, and is wound so as to surround the outer periphery of the roof frame 253, so that the locking portion 284 is retained. The attachment member 279 can be attached to the roof frame 253 by being inserted into 285 and prevented from coming off.

In each of the plurality of attachment portions 278, the attachment member 279 is attached to the roof frame 253 with the string-like member 283, so that the flexible sheet 246 is attached in a state where the flexible sheet 246 is pulled toward the outside of the frame shape over substantially the entire circumference. The flexible sheet 246 can be stretched with respect to the roof frame 253, that is, the support frame 244 in a state where there is little slack.

As shown in FIG. 25, the machine body outer side end position Q1 of the canopy 243 substantially coincides with the machine body outer side end part position of the dust cover 218. The inward end position Q2 of the canopy 243 substantially coincides with the inward end position of the side panel 221. Thus, since the canopy 243 is in a state of covering the dustproof cover 218 and the side panel 221, it is possible to prevent rainwater or the like from falling on them.

[Another embodiment of the third embodiment]
(1) In the third embodiment, the attachment portion 278 is provided with the insertion hole 281 and the insertion hole 281 and the support frame 244 are connected by the string-like member 283. However, instead of such a configuration, The attachment portion can be implemented in various forms such as using a laminated fastener or using a button and a cloth with a hole.

(2) In the third embodiment, the long sheet-like attachment member 279 is attached to the inner surface side of the flexible sheet 246, but without using such a sheet-like attachment member 279. The flexible sheet 246 may be directly attached to the support frame 244.

(3) In the third embodiment, a plurality of mounting portions 278 are provided along the frame shape of the support frame 244. However, instead of this configuration, a configuration including one mounting portion may be used. May be formed long or short along the frame shape.

(4) In the third embodiment, the roof frame 253 obtained by bending the round pipe material into a rectangular frame shape (square shape) in plan view is used as the peripheral frame forming body in the support frame 244. For example, it can be implemented in various shapes such as a substantially U-shape in a plan view using a round pipe material, a substantially H-shape in a plan view, A solid rod may be used and can be implemented in various forms.

(5) In the third embodiment, the coil spring 273 as the urging mechanism moves and urges the support frame 244 upward around the horizontal axis P1, but the support frame 244 is moved around the horizontal axis P1. It is good also as a structure which moves and urges below. Further, the configuration of the biasing mechanism is not limited to the coil spring, and the configuration of the biasing mechanism such as a configuration using a pulling biasing force by a helical spring or a weight can be variously changed.

(6) In the third embodiment, the machine body outer side end position of the dust proof cover 218 and the machine body outer side end position of the work machine canopy 243 are substantially matched. It may be a configuration that completely matches or a configuration that does not match them. For example, when the position of the outer end of the machine canopy 243 is closer to the outer side than the position of the outer end of the dust proof cover 218, or It may be located.

(7) In the third embodiment, the in-machine side end position of the side panel 221 and the in-machine side end position of the work machine canopy 243 are substantially the same. May be completely matched, or they may not be matched. For example, when the position of the end of the work machine canopy 243 toward the inward side is larger than the position of the end of the side panel 221 toward the inward side of the machine, It may be located.

(8) Although the combine is shown as the work machine in the third embodiment, the work machine is not limited to the combine and may be a tractor or another work machine.

(9) The present invention can be applied to a working machine canopy that covers an upper portion of a driving unit in the working machine.

[First Embodiment]
4 Threshing section 5 Glen tank (grain storage section)
6 Unloader 7 Refueling auxiliary base 10 Airframe frame 23 Strut frame 40 Fuel tank 42 Refueling port 52 Recessed portion 80 Guard member 81 Rear extension frame 82 Horizontal frame A Self-propelled airframe (running airframe)
Y Vertical axis p1 Horizontal axis

[Second Embodiment]
125 engine (device to be cooled)
126 Radiator 127 Cooling fan 128 Dust-proof case 129 Intercooler (air cooling type cooling device)
130 Oil cooler for work equipment (another air-cooled cooling device)
131 Oil cooler for missions (another air-cooled cooling device)
132 Bonnet (frame body)
138 Outward pipe (flexible hose)
139 Return pipe (flexible hose)
145 First dust screen (dust screen)
158 Penetration support portion 168 Restriction member Y2 Second longitudinal axis (vertical axis)

[Third Embodiment]
205 Driving section 212 Driving section 213 Engine 214 Radiator 215 Cooling fan 217 Driving seat 218 Dustproof cover 221 Side panel 243 Canopy 244 Support frame 246 Flexible sheet 247 Post 253 Peripheral frame formation body 253a Lateral side section 254 Lateral connection body 255 Lateral reinforcement body 256 Oblique reinforcement 273 Biasing mechanism 278 Mounting portion 281 Insertion hole 283 String member K Positioning mechanism Q1 Aircraft outer side end position Q2 Aircraft inner side end position

Claims (32)

1. A fuel tank is provided at the rear of the aircraft,
   In the rear of the fuel tank, provided with a refueling auxiliary stand capable of placing a refueling container,
   The mounting position on the traveling machine body can be switched between the use state in which the mounting surface faces upward and the retracted state in which the mounting surface is located at a position facing the rear wall of the fuel tank. Work machine configured to.
2. The working machine according to claim 1, wherein the fuel tank is disposed between a grain storage unit and a threshing unit at a rear position of the traveling machine body.
3. The fuel tank is placed and supported on a body frame of the traveling aircraft body, and the refueling auxiliary base is provided such that the placement surface is positioned between the upper surface and the lower surface of the fuel tank in use. The work machine according to claim 1 or 2.
4. The refueling auxiliary base is rotatable around a horizontal axis along the left-right direction of the traveling machine body, and is rotated downward from the used state around the horizontal axis to enter a retracted state. The working machine according to any one of claims 1 to 3, wherein the mounting surface is configured to face a lower portion of a rear surface of the fuel tank.
5. Provided with a grain tank as a grain storage part at the rear position of the traveling machine body,
   A grain unloader is provided behind the grain tank,
   A prop frame that supports the unloader is erected from the body frame of the traveling body,
   The working machine according to any one of claims 1 to 4, wherein the refueling auxiliary base is supported on the support frame.
6. The fuel tank is disposed in a state of protruding rearward from the rear end portion of the body frame of the traveling body,
   A guard member for protecting the rear portion of the fuel tank is provided on the lower side of the protruding portion to the rear side of the fuel tank;
   The guard member includes a pair of left and right rear extending frames that extend rearward from the rear end of the body frame, and a lateral frame that connects the rear ends of the rear extending frame, and The work machine according to any one of claims 1 to 5, wherein the horizontal frame is configured to be positioned below a free end portion of the refueling auxiliary base that is switched to a retracted state.
7. A grain tank for grain storage is provided next to the fuel tank,
   In the Glen tank, a recessed portion is formed on the wall surface facing the fuel tank,
   The work machine according to claim 1, wherein the fuel tank is disposed so as to enter the recessed portion.
8. The Glen tank and the fuel tank are each mounted and supported on the fuselage frame,
   The work machine according to claim 7, wherein the recessed portion is provided in a lower portion of the Glen tank.
9. The working machine according to claim 7 or 8, wherein an inclined portion with a narrowed portion is formed below the Glen tank, and the recessed portion is formed at the inclined portion with the narrowed portion.
10. The working machine according to any one of claims 7 to 9, wherein the recessed portion is formed only in a portion of the Glen tank where the fuel tank overlaps in plan view.
11. The working machine according to any one of claims 7 to 10, wherein the fuel tank is formed in a shape along the shape of the recessed portion.
12. The working machine according to any one of claims 7 to 11, wherein the recessed portion is formed on a rear side of the Glen tank.
13. The working machine according to claim 12, wherein the fuel tank includes a projecting portion projecting rearward from the grain tank in a plan view, and the projecting portion includes a fuel filler opening.
14. A radiator for cooling the engine coolant,
    A cooling fan that is disposed inside the fuselage with respect to the radiator and cools the radiator;
    A dust-proof case having a dust-proof net that covers the outside of the radiator body in a state that allows ventilation and prevents the passage of dust;
    An air-cooled cooling device located between the dust-proof net and the radiator,
    The air-cooled cooling device is a work vehicle configured to be openable in a direction different from the opening movement direction of the dustproof case.
15. Either one of the dust-proof case and the air-cooled cooling device is configured to be movable up and down,
    The work vehicle according to claim 14, wherein either the dustproof case or the air-cooled cooling device is configured to be horizontally movable.
16. The work vehicle according to claim 15, wherein the dustproof case and the air-cooled cooling device are rotatable.
17. The air-cooled cooling device is connected to a device to be cooled by a flexible hose,
    The work vehicle according to claim 16, wherein the air-cooled cooling device is rotatable by deformation of the flexible hose.
18. A through-hole support portion is provided in the frame body that houses the radiator,
    The flexible hose is penetrated and supported by the penetration support part,
    The work vehicle according to claim 17, wherein the air-cooled cooling device is rotatable around a vicinity of the penetration support portion.
19. The work vehicle according to claim 18, wherein the penetration support portion is detachable from the frame body.
20. The work vehicle according to claim 18 or 19, wherein the frame body is provided with a regulating member that regulates movement of the flexible hose when the air-cooled cooling device is moved open.
21. Another air-cooled cooling device different from the air-cooled cooling device is provided inside the air-cooled cooling device,
    21. The another air-cooled cooling device is configured to be movable to open in a direction different from an opening movement direction of the air-cooling cooling device and an opening movement direction of the dustproof case. Working vehicle.
22. The dustproof case is rotatable around a longitudinal axis,
    Either one of the air-cooled cooling device and the other air-cooled cooling device can be turned upward.
    The work vehicle according to claim 21, wherein one of the air-cooled cooling device and the other air-cooled cooling device is rotatable downward.
23. The air-cooled cooling device in the state of being rocked open and the other air-cooled cooling device in the state of being rocked open are mutually locked, so that the air-cooled cooling device and the other air-cooled cooling device are locked together. 23. The work vehicle according to claim 22, wherein both of the work vehicle are held in a state of being rocked open.
24. A support frame supported by the machine body of the working machine, and a flexible sheet stretched on the support frame to form a roof portion and have flexibility,
    The support frame is formed in a frame shape in plan view;
    A mounting portion for the support frame is provided on the inner surface side of the flexible sheet,
    The attachment portion is a canopy for a work machine that is provided in a state of being positioned inside the frame-shaped support frame in plan view.
25. 25. The work machine canopy according to claim 24, wherein a plurality of the attachment portions are provided along a frame shape of the support frame.
26. The work according to claim 24 or 25, wherein a long sheet-like attachment member including the plurality of attachment portions and extending along a frame shape of the support frame is attached to an inner surface side of the flexible sheet. Machine canopy.
27. The mounting portion is provided with an insertion hole,
    The work machine canopy according to any one of claims 24 to 26, wherein the insertion hole and the support frame are connected by a string-like member.
28. The support frame is
    A peripheral frame forming body that forms a rectangular frame shape, a laterally connected body that is laid across the lateral sides of the left and right sides of the peripheral frame forming body, and a single body integrated with the laterally connected body along the laterally connected body Laterally connected reinforcement body, and an oblique reinforcement body extending in an oblique direction across the lateral intermediate portion of the lateral reinforcement body and the lateral side portions on the left and right sides of the peripheral frame forming body. The working machine canopy according to any one of claims 24 to 27.
29. The support frame is supported so as to be swingable up and down around a horizontal axis with respect to a support supported by a body of a work machine,
    An engaging positioning mechanism capable of holding the support frame in the vertical swing position at a set position;
    The working machine according to any one of claims 24 to 28, further comprising an urging mechanism that urges the support frame to move upward or downward about the horizontal axis across the support frame and the support column. For canopy.
30. A work machine comprising the work machine canopy according to any one of claims 24 to 29.
31. The working machine canopy is provided in a state of being positioned above the operation unit,
    A driving part is provided on the lower side of the driving part,
    The prime mover is provided with an engine, a radiator for cooling the engine, a cooling fan that generates cooling air for the radiator, and a dust-proof cover that sucks the cooling air from outside the aircraft,
    The work machine according to claim 30, wherein a position of the outer side of the machine body on the outer side of the dust-proof cover and a position of the outer side of the machine body on the outer side of the work machine coincide with each other.
32. The working machine canopy is provided in a state of being positioned above the operation unit,
    The driver is provided with a driver's seat and a side panel positioned on the inboard side of the driver's seat,
    The work machine according to claim 30 or 31, wherein an in-machine side end position of the side panel and an in-machine side end position of the work machine canopy coincide with or substantially coincide with each other.

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