WO2015020055A1

WO2015020055A1 - Combine harvester

Info

Publication number: WO2015020055A1
Application number: PCT/JP2014/070626
Authority: WO
Inventors: 舘野裕介; 吉田有作; 福岡義剛; 三井孝文; 中島伸六; 八木澤俊夫; 上北千春; 山形浩司; 松下博昭; 熊取剛; 野口耕作; 成田靖; 古木大樹
Original assignee: 株式会社クボタ
Priority date: 2013-08-07
Filing date: 2014-08-05
Publication date: 2015-02-12
Also published as: CN105451542B; CN105451542A

Abstract

Provided is a combine harvester in which grains can be readily discharged from a grain tank so that no grain remains while the load from the grains stored in the grain tank is stably applied to a traveling machine body. The grain tank (20) is provided so as to be capable of swinging vertically about an elevating axis (X) between a lowered storage orientation and a lifted discharge orientation. A grain discharge port (31) is provided to the end part of the grain tank (20) that corresponds to the lower side in the lifted discharge orientation. The bottom part (22) of the grain tank (20) is shaped as a straight line between the end part that corresponds to the upper side in the lifted discharge orientation and the grain-discharge-port side.

Description

Combine

This invention relates to the combine which provided the grain tank which stores the grain from a threshing apparatus so that it could rock | fluctuate up and down around a raising / lowering axis center over a downward storage attitude | position and an raising discharge attitude | position.

[1] For example, the combine shown in Patent Document 1 includes a grain tank having a tank part and a straw storage part positioned in communication with the tank part below the lateral end of the tank part. The tank portion is configured to be able to be tilted up and down by a hydraulic cylinder.

[2] For example, the combine shown in Patent Document 2 is configured such that the grains stored in the grain tank are taken out by the bottom discharge auger, the relay discharge auger, the vertical discharge auger, and the upper carry-out auger. In addition, the grain tank is provided so that it can be pivoted left and right, and the grain outlet of the cereal cylinder and the rear side plate portion of the cereal tank are provided in an inclined shape at the rear of the upper part. The grain tank can be rotated without removing any parts in between.

Japanese National Utility Model Publication No. 55-42969 Japanese Unexamined Patent Publication No. 2000-37134

[1] Issues corresponding to the background art [1] are as follows.
When the technique shown in Patent Document 1 for configuring the grain tank is adopted, the amount of the grain stored over the part of the upper tank part where the straw storage part exists and the straw storage part However, the grain is stored throughout the whole grain tank in a state where it is considerably larger than the amount of the grain stored in the portion of the upper tank part where the straw storage part does not exist below. Therefore, the difference between the load generated for the grain stored in the part where the cocoon storage part does not exist and the load generated for the grain stored in the part where the cocoon storage part exists increases. An unstable load is applied to the vehicle.

The first object of the present invention is to provide a combine that is easy to discharge so as not to leave a grain from the grain tank while stably applying a load due to the grain stored in the grain tank to the traveling machine body. There is.

[2] Issues corresponding to the background art [2] are as follows.
When the technique shown in Patent Document 2 for discharging the grain from the grain tank is adopted, the production cost is increased due to the discharge auger and the carry-out auger. In addition, the weight of the combine increases.

The second object of the present invention is to provide a combine that is unlikely to cause a grain loss while being able to supply a grain from a grain tank to a supply object such as a carrier bed without using an auger. It is in.

[3] Issues corresponding to the background art [2] are as follows.
By adopting the technique shown in Patent Document 2 for introducing the grain into the grain tank, the grain tank wall connected to the supply port of the cerealing device is formed into an inclined shape, thereby making the grain The capacity of the tank is reduced due to the inclined shape of the wall.

The third object of the present invention is not only to switch the grain tank between the descending storage attitude and the ascending discharge attitude without requiring an operation on the connection between the grain tank and the cerealing device, but also the grain tank. It is to provide a combine that is not subject to capacity restrictions.

[4] Issues corresponding to the background art [1] are as follows.
When the technology shown in Patent Document 1 for vertically swinging the grain tank is adopted, for example, when the grain tank is raised to the ascending discharge posture and the grain is discharged from the grain tank, When the hydraulic cylinder is actuated suddenly, the grain tank rises rapidly, and the grain tends to spill out and fall out easily.

A fourth object of the present invention is to provide a combine that is unlikely to cause troubles such as spilling of grains due to inappropriate operation of an actuator.

[1] The means for solving the problem [1] is as follows.

A grain tank for storing the grain from the threshing device is provided so as to be swingable up and down around the lifting shaft core over the descending storage posture and the rising discharge posture,
Among the grain tanks, a grain outlet is provided at the lower end in the raised discharge posture,
The shape of the bottom part of the grain tank is in a straight line extending from the upper end in the raised discharge posture to the grain outlet side.

According to this configuration, the grain outlet is located at the lower end of the grain tank in the ascending discharge posture, and the end of the grain tank and the grain at the upper side in the ascending discharge posture Since it is in a straight line over the outlet side, the accumulated height of the grains stored in the grain tank can be made as uniform as possible throughout the grain tank.
When the grain tank is in the ascending discharge posture, not only the bottom part is inclined, but also the shape of the bottom part is in a straight line from the upper end of the bottom part to the grain outlet side, so that the grain is discharged. It can flow smoothly to the outlet.
Since the shape of the bottom part of the grain tank is in a straight line extending from the upper end to the grain discharge outlet side in the ascending discharge posture, the inside of the grain tank is easily visible from the grain outlet.
Therefore, it is possible to apply the load due to the grain to the traveling machine body in a stable state in which the distribution of the grain load stored in the grain tank is as uniform as possible in the whole grain tank. And when discharging | emitting a grain from a grain tank, a grain flows smoothly into a grain discharge port, and it is hard to remain in a tank.
Checking the inside of the grain tank, such as checking for the presence of residual grain so that it does not mix even if the varieties to be harvested differ, can be done easily from the grain outlet without looking inside the tank.

In one preferred embodiment, the grain tank is deployed over the full width or almost the full width of the traveling aircraft,
The elevating shaft core is located on the end side of the grain tank in the lateral direction of the traveling machine body or in the longitudinal direction of the traveling machine body.

According to this structure, when the raising / lowering axis is located on the end side of the grain tank, when the grain tank is in the ascending / discharging posture, the side opposite to the side where the raising / lowering axis of the grain tank is located. The end part rises high, and the drop from the part on the opposite side to the part on the grain outlet side in the bottom part becomes large. Therefore, the grain flow to the grain outlet can be performed more smoothly, and the grain is less likely to remain in the tank.

In a preferred embodiment, the bottom of the grain tank in the descending storage posture is in a horizontal posture.

According to this structure, it is easy to make the accumulation height of the grain stored in the grain tank uniform throughout the grain tank, and the load due to the grain stored in the grain tank is distributed over the entire grain tank. Can be made more uniform and can be applied to the traveling aircraft.

In a preferred embodiment, the elevating shaft core is located below the bottom.

According to this configuration, the inclination angle of the bottom when the grain tank is in the ascending discharge posture can be made steeper than that where the lifting axis is located above the bottom, and the grain is discharged from the grain outlet. It flows more smoothly and becomes difficult to remain in the tank.

In one preferred embodiment, the grain tank is located above the threshing device.

According to this structure, since the grain can be stored by using the space above the threshing device for storing the grain, it is possible to store many grains while suppressing the combine from becoming large due to the grain tank. Grain storage is possible.

In one preferred embodiment, the bottom part of the grain tank in the descending storage posture and the top plate of the threshing apparatus are configured to be close to each other.

According to this configuration, while the grain can be stored using the space above the threshing device, the grain is positioned as low as possible, and the height of the center of gravity of the entire combine is It can suppress becoming high.

In a preferred embodiment, the elevating shaft is located above the barrel axis of the threshing device.

When the tilt angle of the bottom when the grain tank is in the ascending discharge posture becomes steep, the grain rapidly flows into the grain discharge port. According to this structure, it can prevent that the inclination-angle of the bottom part at the time of making a grain tank into a raise discharge attitude | position becomes a steep inclination angle, and can make a grain flow to a grain discharge port at an appropriate speed.

In one preferred embodiment, the lifting axis is located on the side of the grain tank in the lateral direction of the traveling machine,
A support frame that supports a bearing member that supports the grain tank so as to be swingable up and down around the lifting shaft core;
The support frame is arranged on the lateral side of the threshing device.

According to this configuration, since the support frame is arranged in the lateral side space of the threshing apparatus, the support frame can be provided with a sturdy frame structure using the lateral side space of the threshing apparatus. The tank can be firmly supported.

In one preferred embodiment, the grain tank is provided with a guide chute supported so as to be swingable up and down around the swing axis around the lowered use posture and the raised storage posture,
The guide chute is configured to guide the grain flowing out from the grain outlet to the outside of the traveling machine when switched to the lowered use posture, and when switched to the raised storage posture. And configured to follow the vertically facing wall of the grain tank connected to the grain outlet of the grain tank,
A pair of left and right connected to the guide chute and the grain tank side on the left lateral side and the right lateral side of the guide chute to swing the guide chute between the lowered use posture and the raised storage posture A bending and stretching link is provided,
The grain tank includes a rotation support shaft that is rotatably supported around an axis in a direction along the swing axis.
The bending / extending link includes a tank side link supported on one end side of the rotation support shaft so as not to be relatively rotatable, and a chute side link connecting the tank side link and the guide chute,
The left tank side link and the right tank side link are connected to the rotary support shaft by welding.

According to this configuration, the grain discharged from the grain tank can be guided down to the collecting means such as the carrier of the transport vehicle by the guide chute, and quickly supplied to the collecting means without spilling out of the collecting means. it can.
The guide chute can be switched between the lowered use posture and the raised retracted posture while the left lateral side and the right lateral side of the guide chute are supported by the bending and stretching links. The tank side link on the left side and the tank side link on the right side are oscillated in an interlocking manner by a simple interlocking connection means in which the left side and right side tank side links are connected to the rotating spindle by welding. Therefore, it is possible to smoothly change the posture of the guide chute while preventing the guide chute from being twisted at a low cost.

In one preferred embodiment, the guide chute is switched to the lowered use posture in conjunction with the swinging of the grain tank to the rising and discharging posture, and linked to the swinging of the grain tank to the lowered storage posture. And a linkage mechanism that links the grain tank and the guide chute so that the guide chute switches to the raised storage posture,
The left side bending link or the right side bending link is included in the linkage mechanism.

According to this configuration, when the grain tank is switched to the lowered storage posture or the upward discharge posture, the guide chute is automatically switched to the upward storage posture or the downward use posture by the linkage mechanism. And no guide chute storage error when working or traveling.
With a simple structure in which the function of the linkage mechanism is provided in the bending and stretching link, it is possible to change the posture of the guide chute accompanying the swing of the grain tank.

In one preferred embodiment, the kernel is equipped with a discharge screw that discharges the kernel from the kernel outlet to the outside of the kernel.
The elevating shaft core and the rotating shaft core of the discharge screw are set to the same shaft core.

According to this configuration, the grain tank can be supported in a vertically swingable manner and the discharge screw can be rotatably supported by a common bearing for the grain tank and the discharge screw. In addition, the transmission rotating body that drives the discharge screw can be arranged coaxially with the raising and lowering axis core of the grain tank, and the transmission system for the discharge screw can be arranged so as to obstruct the vertical swing of the grain tank. It can be advantageously configured while having a screw.

In a preferred embodiment, an end portion of the bottom of the grain tank on the side where the grain outlet is located is provided with a recessed portion that communicates with the grain outlet and into which the outlet screw enters.
The shape of the bottom of the grain tank is in a straight line extending from the upper end in the rising and discharging posture to the upper end edge of the recessed portion.

According to this configuration, when the grain tank is in the ascending discharge posture, not only the bottom part is inclined, but also the shape of the bottom part is the above-described straight line, so that the grain smoothly flows to the grain outlet. It is possible to smoothly flow into the recessed portion from the grain discharge port and supply it smoothly to the discharge screw, and to take out the grain with the discharge screw, it is difficult for the grain to leak out.

In one preferred embodiment, a grain outlet by the discharge screw is provided at the front end of the grain tank,
An unloader for conveying the grain from the discharge screw is provided on the traveling machine body front side of the grain tank,
An unloader receiving recessed portion into which the unloader enters is provided at a corner formed by the front wall and the lateral wall of the grain tank.

According to this configuration, when the unloader enters the unloader housing recessed portion, the unloader can be prevented or suppressed from protruding forward from the front wall, and the grain tank is placed as far forward as possible on the traveling machine body while having the unloader. Can be deployed together.

In one preferred embodiment, the shape of the portion located in front of the rear end of the unloader receiving recessed portion in the bottom of the grain tank is inclined downward.

According to this configuration, when the grain tank is in an ascending discharge posture and flows to the grain outlet along the part of the bottom that is located in front of the rear end of the unloader receiving recessed part, the shape of that part is rearward Due to the downward slope, the flow along the portion can be smoothly performed, and it is difficult for leakage of grains to occur.

In a preferred embodiment, the grain tank is equipped with a connecting rod for connecting the opposing vertical walls.

In one preferred embodiment, the shape of the front wall of the grain tank is linear in plan view.

According to this configuration, when the grain tank moves upward along the front wall and the grain flows along the front wall, the shape of the front wall is straight in plan view, so that the flow along the front wall is smooth. It is difficult to cause omission of grains.

[2] The means for solving the problem [2] is as follows.

A grain tank for storing the grain from the threshing device is provided so as to be swingable up and down around the lifting shaft core over the descending storage posture and the rising discharge posture,
Among the grain tanks, a grain outlet is provided at the lower end in the raised discharge posture,
The grain tank is provided with a guide chute supported so as to be swingable up and down around the swing axis center over the lowered use posture and the raised storage posture.
The guide chute is configured to guide the grain flowing out from the grain outlet to the outside of the traveling machine when switched to the lowered use posture, and when switched to the raised storage posture. The grain tank is configured to cover a grain tank vertical wall that is connected to the grain outlet of the grain tank, and to form a grain retreat space between the grain tank and the vertical wall. .

According to this configuration, when the grain tank is switched to the descending storage posture, the grain located inside the grain tank naturally flows to the lower end of the grain tank, and from the grain outlet. leak. If the guide chute is in the lowered use posture, the grain that has flowed out of the grain tank can be supplied to a supply object such as a carrier truck by the guide chute.
When the guide chute is switched to the raised storage posture, when the guide chute comes into contact with the vertical wall of the grain tank connected to the grain outlet, if the grain remains on the guide chute, the guide chute is raised to the stored posture. Even if it is going to be switched, the grain is clogged between the guide chute and the grain tank vertical wall and the guide chute cannot be switched to the raised storage position. Easily spills from between the grain tank vertical wall.
According to this configuration, when the guide chute is switched to the raised storage posture, a grain evacuation space is formed between the guide chute and the grain tank vertical wall. Even if the kernel remains, the remaining kernel does not become an obstacle to the guide chute being switched to the ascending storage posture by being pressed by the guide chute and being accommodated in the grain retreat space. Therefore, when the guide chute is switched to the raised storage posture, even if the kernel remains in the guide chute, the guide chute can be switched to the raised storage posture, and the remaining kernel is switched to the raised storage posture. It can be stored between the chute and the vertical wall of the grain tank to prevent spilling from this location.
Therefore, it is possible to supply a grain with good accuracy from the grain tank to the carrier bed without using an auger, and it can be obtained at low cost and light weight.
And when switching a guidance chute to a raise storage attitude | position, even if a grain remains in a guidance chute, the loss which the grain spills does not produce easily.

In one preferred embodiment, the guide chute includes a chute main body and a side plate that rises from both lateral ends of the chute main body to the side where the guide surface of the chute main body is located.

According to this configuration, the four sides of the grain evacuation space in plan view can be surrounded by the chute body, both side plates, and the grain tank vertical wall, and the spillage of the grain located in the grain evacuation space Prevention can be performed with higher accuracy.

In a preferred embodiment, in the state where the guide chute is in the raised storage posture, the side plate portion is configured to overlap the outer wall surface portion of the grain tank in a direction view along the swing axis.
A gap filling member is provided for filling a gap generated between the side plate portion and the outer wall surface portion in a state where the guide chute is in the raised storage posture.

According to this configuration, when the guide chute is switched to the raised storage posture, the gap generated between the side plate portion and the outer wall surface portion can be filled with the gap filling member, and even if the grain remains on the guide chute, the grain Can be made difficult to leak from between the side plate portion and the outer wall surface portion.

In one preferred embodiment, the gap filling member is an elastic member.

According to this configuration, when the gap filling member fills the gap between the side plate portion and the outer wall surface portion, the gap filling member is elastically deformed by being sandwiched between the side plate portion and the outer wall surface portion, and the gap filling member is brought into close contact with the side plate portion and the outer wall surface portion. Can make the grain more difficult to spill.

In one preferred embodiment, the gap filling member is attached to the grain tank.

When the gap filling member is attached to the side plate portion, when the guide chute moves up and swings toward the raised storage posture, the gap filling member moves toward the outer wall surface portion together with the side plate portion, and the guide chute has grains. If left, grain may be pushed out by the gap filling member.
According to this configuration, when the guide chute moves up and swinging toward the raised storage posture, the gap filling member is stopped on the grain tank side, and the side plate portion moves toward the gap filling member. Even if the grain remains on the guide chute, the grain is difficult to be pushed out.

In one preferred embodiment, the depth of the grain retreat space is set to be larger than the rising height of the side plate portion.

According to this configuration, the volume of the grain evacuation space can be made larger than the volume set by the chute body and the both side plates of the guide chute, and the grains accommodated in the grain evacuation space can be Can be spilled out more easily by being located deeper.

In a preferred embodiment, the grain tank is provided with a covering portion that covers the upper side of the grain retreat space.

本 According to this configuration, even when the grain located in the grain retreat space jumps up due to running vibration or the like, it is difficult to jump out by hitting the cover part, and the grain can be prevented from spilling out more accurately.

In a preferred embodiment, the guide chute includes an attachment portion for attaching an extended guide chute,
The extension guide chute attached to the attachment part is configured to be stored below the upper end of the cover part when the guide chute is switched to the raised storage posture.

According to this configuration, even when the extension guide chute is attached so that the supply accuracy is good even if the supply target is low, the extension guide chute is By being stored below the upper end, it is possible to avoid the height of the end of the grain tank from being increased due to the extended guide chute.

In one preferred embodiment, the guide chute is switched to the lowered use posture in conjunction with the swinging of the grain tank to the rising and discharging posture, and linked to the swinging of the grain tank to the lowered storage posture. Then, a linkage mechanism is provided in which the grain tank and the guide chute are linked so that the guide chute is switched to the raised storage posture.

According to this configuration, when the grain tank is switched to the lowered storage posture or the upward discharge posture, the guide chute is automatically switched to the upward storage posture or the downward use posture by the linkage mechanism. And no guide chute storage error when working or traveling.

In a preferred embodiment, as soon as the grain tank starts swinging from the descending storage posture toward the ascending discharge posture, the guide chute starts swinging from the ascending storage posture toward the descending use posture. Thus, the linkage mechanism links the grain tank and the guide chute.

According to this configuration, when the grain is supplied from the grain tank to the supply target, even if the grain may flow out from the grain tank before the grain tank is switched to the rising discharge posture, the grain tank If the guide chute starts swinging toward the lowered use posture, the spilled grain can be received and supported by the guide chute or supplied to the supply target. It is easy to avoid loss due to grain spillage.

In a preferred embodiment, after the grain tank starts swinging from the ascending / discharging posture toward the descending storage posture and swings a predetermined amount, the guide chute is retracted from the descending use posture to the retracting position. The linkage mechanism links the grain tank and the guide chute so as to start swinging toward the posture.

Kernel may be adjusted by lowering the grain tank from the ascending discharge posture and changing the angle of the grain tank to be different from the angle in the ascending discharge posture. According to this configuration, even if the grain tank starts swinging toward the lowered storage posture, the guide chute does not immediately swing toward the raised storage posture, and the grain tank swings a predetermined amount. Even if the angle of the grain tank is changed by starting the swinging of the guide chute toward the up and retracted posture, the guide chute is still in the lowered use posture or a posture close to it and flows out of the grain tank. The grain to be made can be guided to the supply target by the guide chute.

In one preferred embodiment, the linkage mechanism includes an operation cable for linking the grain tank and the guide chute, and the grain tank is configured to be loosened by generating a slack in an inner cable of the operation cables. The guide chute starts to swing from the lowered use posture to the raised storage posture after starting to swing from the raised discharge posture toward the lowered storage posture, and after a predetermined amount of rocking. It is.

According to this configuration, the grain tank and the guide chute are linked by a simple linkage structure employing an operation cable, while the grain tank starts swinging toward the descending storage posture and is used for a predetermined purpose. After swinging, the guide chute can start swinging toward the ascending storage posture, so that it is possible to obtain a product that can easily avoid loss due to spillage of grain from the guide chute.

In one preferred embodiment, the guide chute is connected between the guide chute and the grain tank side on the left lateral side and the right lateral side of the guide chute, and the guide chute is swung between the lowered use posture and the raised storage posture. A pair of left and right flexion / extension links for dynamic operation are provided,
The grain tank includes a rotation support shaft that is rotatably supported around an axis in a direction along the swing axis.
The bending / extending link includes a tank side link supported on one end side of the rotation support shaft so as not to be relatively rotatable, and a chute side link connecting the tank side link and the guide chute,
The left tank side link and the right tank side link are connected to the rotary support shaft by welding.

According to this configuration, the guide chute can be switched between the lowered use posture and the raised retracted posture while the left and right sides of the guide chute are supported by the bending and stretching links. The tank side link on the left side and the tank side link on the right side are oscillated in an interlocking manner by a simple interlocking connection means in which the left side and right side tank side links are connected to the rotating spindle by welding. Therefore, it is possible to smoothly change the posture of the guide chute while preventing the guide chute from being twisted at a low cost.

In a preferred embodiment, the linkage mechanism includes the left lateral bending link or the right lateral bending link.

本 According to this configuration, the posture of the guide chute can be changed with the swing of the grain tank by a simple structure in which the function of the linkage mechanism is provided in the bending and stretching link.

In one preferred embodiment, the pivot axis of the guide chute is located below or at the same height as the bottom of the grain tank.

According to this configuration, even if the guide chute is made compact so that the pivot axis is located near the base, the bottom of the grain tank is arranged so that there is no gap between the base of the guide chute and the grain tank. It is easy to enter, and guidance by the guide chute can be performed satisfactorily while achieving downsizing of the guide chute.

In a preferred embodiment, the guide surface of the guide chute is provided with an inclined guide that guides the grain toward the center in the lateral direction of the exit of the guide chute.

According to this configuration, the grain that has flowed out of the grain tank to the guide chute is brought to the center side in the width direction of the outlet of the guide chute by the inclined guide, and is supplied to the supply target from the portion near the center of the outlet of the guide chute. Therefore, even when the receiving width of the supply target is narrow, the grains are difficult to leak out of the supply target.

In one preferred embodiment, the inclined guide is supported so that the angle can be changed.

According to this configuration, by changing the angle of the tilt guide, the margin for the tilt guide to move the grain toward the center side in the lateral width direction of the exit of the guide chute changes. By changing the angle of the inclined guide in accordance with the width, it is possible to quickly supply the grain to the supply target while preventing the grain from leaking outside the supply target.

In a preferred embodiment, a batting plate for guiding the grain to the grain outlet is attached to the inner corner of the grain tank.

According to this configuration, even if there is a corner formed by the walls at the end of the grain outlet, the grain does not enter the corner by receiving the guidance of the patch plate when discharging the grain. It can be made to flow into the outlet, so that the grains do not enter the corners and remain in the tank.
When there is no corner formed by the walls at the end of the grain outlet, the grain is guided toward the center of the grain outlet by the pad when discharging the grain, It can be made to flow out through the part away from the end of the grain outlet to the center side.

In one preferred embodiment, the grain outlet is formed in the lower part of the wall of the grain tank.

According to this configuration, when the grain tank is in the ascending discharge posture, the grain outlet is located at the lower end of the grain tank, so the grain in the grain tank is removed from the grain outlet. It is easy to flow out and it is difficult for the grain to remain in the grain tank.

In one preferred embodiment, the grain outlet is formed across the entire width of the grain tank vertical wall.

According to this configuration, both ends of the grain outlet are connected to the wall adjacent to the vertical wall of the grain tank in which the grain outlet is formed, and the both ends of the grain outlet are adjacent to each other by the adjacent walls. There are no corners to be formed. Therefore, the grain does not remain on both ends of the grain outlet.

In a preferred embodiment, the grain outlet is formed in a shape having a higher opening height at the center side than at both end sides.

On the lateral end side of the guide chute, the larger the amount of grain that flows out per unit time, the easier it is for the grain to overflow. According to this configuration, on the central side of the grain outlet, the flow height per unit time increases due to the high opening height, and on both ends of the grain outlet, the opening height is low. The amount of spillage of grain per unit time is reduced. Therefore, as a whole, it is possible to avoid spilling of the grain on the guide chute while taking out the grain from the grain tank in the required time.

[3] The means for solving the problem [3] is as follows.

A grain tank for storing the grain from the threshing device is provided so as to be swingable up and down around the lifting shaft core over the descending storage posture and the rising discharge posture,
An inlet is provided on the wall surface perpendicular to the lifting axis of the grain tank,
A connection part for detachably connecting the supply port of the cerealing device for supplying the grain from the threshing device to the grain tank, and the input port;
The said connection part is comprised with the tank side wall member provided in the said grain tank side, and the cereal side wall member provided in the said cerealing apparatus side.

According to this configuration, when the grain tank inlet is located on the wall surface of the grain tank perpendicular to the lifting axis, and when the grain tank is in the lowered storage posture, The tank side wall member moves together with the grain tank when the grain tank swings, and the tank side wall member and the side wall member Are separated from each other to separate the input port of the grain tank and the supply port of the cerealing device.
Therefore, it is possible to easily and quickly eliminate the operation of releasing or returning the connection between the input port of the kernel tank and the supply port of the cerealing device to swing the kernel tank. However, it is possible to avoid the decrease in tank capacity as in the case where the wall surface where the grain tank inlet is located is made into a wall surface orthogonal to the lifting axis, and the inclined wall surface, and as many grains as possible Can be stored, and the number of interruptions can be reduced for grain removal.

In one preferred embodiment, the tank side wall member and the cereal side wall member are configured not to interfere with each other when the grain tank swings.

When the grain tank swings, the tank side wall member and the side wall member are made flexible so that the tank side wall member and the side wall member are deformed by contact with the other, and the grain tank swings. It is conceivable to eliminate the need for an operation on the connection portion when performing the operation. According to this configuration, since the tank side wall member and the cereal side wall member do not interfere with each other, the tank side wall member and the cereal side wall member are not provided with flexibility, and the connection portion when the grain tank swings is provided. Operation can be made unnecessary.
Therefore, the tank side wall member and the cereal side wall member are constituted by strong members, and the connecting portion is provided with excellent shape retention strength and durability, so that the connecting portion is not easily damaged due to the collision of the grains.
According to this configuration,

In one preferred embodiment, one of the two divided cylinder members formed by dividing the cylinder member in the circumferential direction is provided as the tank side wall member, and the other division of the two divided cylinder members. The said connection part is comprised including the cylinder member as the said cereal side wall member.

と According to this configuration, the connection portion can be obtained with a simple structure in which two divided cylindrical members are combined, and the connection portion can be easily assembled.

In one preferred embodiment, the connection part is formed so that a cross-sectional shape in a direction view along the direction of the lifting axis is a quadrangle,
Of the connecting portion, the tank sidewall member is set to a portion located on the swinging direction discharge posture side from a straight line connecting a vertex closest to the lifting axis and a vertex farthest from the lifting axis,
The part located in the rocking | swiveling direction storage attitude | position side rather than the said straight line among the said connection parts is set to the said cereal side wall member.

When the grain tank is in a descending storage posture and the tank side wall member is in contact with and joined to the whipped side wall member, if the contact force is strong, the joint surface of both members is between the tank side wall member and the whipped side wall member. Misalignment movement in the direction along may occur. This shift movement is less likely to occur as the inclination angle of the joint surface between the tank side wall member and the cereal side wall member with respect to the movement path of the tank side wall member becomes steeper. According to this configuration, the portion located on the side of the swinging direction discharge posture with respect to the straight line connecting the two vertices other than the vertex closest to the lifting axis and the farthest vertex is set to the tank side wall member and connected. Compared to setting the portion located on the rocking direction storage posture side of the straight line connecting the two vertices other than the nearest vertex and the farthest vertex in the portion, the tank sidewall member and the pulverized sidewall Even if the inclination angle of the joint surface with the member with respect to the movement path of the tank side wall member is steep, even if the tank side wall member abuts strongly against the cereal side wall member, both members are joined between the tank side wall member and the cereal side wall member. It is difficult for the displacement movement in the direction along the surface to occur.
Therefore, even if the tank side wall member strongly contacts the cereal side wall member, poor connection between the tank side wall member and the cereal side wall member hardly occurs, and the connection between the input port and the supply port can be maintained in a good state.

In a preferred embodiment, there is provided a lock portion that positions the cerealing device with respect to the grain tank in the descending storage posture in a direction along the lifting axis.

According to this configuration, when the grain tank is in the descending storage posture, the lock unit performs positioning in the direction along the lifting axis of the grain raising device with respect to the grain tank. Or even if stationary inertia, dynamic inertia, etc. generate | occur | produce, the shift | offset | difference movement of a tank side wall member and a cereal side wall member can be prevented or suppressed, and the connection of the insertion port and supply port by a connection part can be maintained in a favorable state.

In one preferred embodiment, the lock portion is provided across the grain tank and the cerealing device.

本 According to this configuration, the lock part can be compactly equipped with a small one located between the grain tank and the cerealing device.

In one preferred embodiment, the lock portion includes a positioned member attached to one of the cerealing device and the grain tank, a positioning member attached to the other of the cerealing device and the grain tank, It has.

According to this configuration, when the grain tank swings, the positioned member and the positioning member move away from each other and move relative to each other, and when the grain tank is in the lowered storage posture, the positioned member and the positioning member coincide with each other. It is easy to automate so that positioning is performed automatically.

In a preferred embodiment, the positioning member includes a positioning operation portion that positions the positioning member, and the positioning member as the positioning operation portion as the grain tank swings to the lowered storage posture. And a guiding section for guiding.

According to this configuration, when the grain tank swings toward the lowered storage posture, the positioned member receives the guidance from the guide portion and moves toward the positioning action portion, so that the grain tank assumes the lowered storage posture. Then, when the member to be positioned coincides with the positioning action portion, positioning by the lock portion when the grain tank is in the lowered storage posture is automatically performed.

In one preferred embodiment, the positioning action part and the guide part are connected.

According to this configuration, the movement of the positioned member from the guide part to the positioning action part can be smoothly performed by the series of the guide part and the positioning action part, and the lock part can be automatically locked. The moving operation to the descending storage posture of the grain tank can be performed smoothly.

In a preferred embodiment, the tank side wall member includes an inner tank side wall member that overlaps the whipped side wall member on the inner peripheral side of the connection portion when the grain tank is in the lowered storage posture.
The whipped side wall member includes an inner whipped side wall member that overlaps the tank side wall member on the inner peripheral side of the connecting portion when the grain tank is in the lowered storage posture.

According to the present configuration, the inner tank side wall member and the inner cereal side wall member have a guard function for suppressing the grains supplied from the cerealing device to the grain tank from colliding with the inner surface side of the tank side wall member and the cereal side wall member. It is possible to prevent or suppress damage and deterioration of the tank side wall member and the cereal side wall member.

In one preferred embodiment, the inner tank side wall member and the inner cereal side wall member are configured not to overlap in a direction along the direction of the lifting axis.

When the inner tank side wall member and the inner cereal side wall member overlap in the direction along the direction of the lifting axis, the inner tank side wall member and the inner cereal side wall member are grains formed by the tank side wall member and the cereal side wall member. It is located on the same side in the direction crossing the grain transport path with respect to the center of the grain transport path. According to this configuration, the inner tank side wall member and the inner cereal side wall member are opposite to each other in a direction crossing the grain transfer path with respect to the center of the grain transfer path formed by the tank side wall member and the whipped side wall member. The guard by the inner tank side wall member and the inner cereal wall member with respect to the tank side wall member and the cereal side wall member can be effectively located from the positions opposite to each other with respect to the center of the grain transfer path. Easy to do.

In a preferred embodiment, a sealing member is provided between the inner tank side wall member and the cereal side wall member.

According to this configuration, the gap between the inner tank side wall member and the cereal side wall member is sealed by the seal member, and leakage of the grain can be prevented. Further, when the grain tank is in the descending storage posture and the tank side wall member and the cereal side wall member are connected, the seal member is sandwiched between the inner tank side wall member and the cereal side wall member, and the sealing member has a buffer function. It can be demonstrated.

In one preferred embodiment, the inlet is provided on the upper side of the grain tank.

According to this configuration, the grain from the cerealing device can be put into a high part of the grain tank, and the grain can be scattered evenly over the entire area of the grain tank. A large amount of grain can be stored using the internal space as much as possible for storage.

In a preferred embodiment, a display unit is provided for displaying that the grain tank has been switched to the descending storage posture.

本 According to this configuration, since the display unit can confirm that the grain tank has been switched to the descending storage posture, the posture switching of the grain tank to the descending storage posture can be ensured.

In one preferred embodiment, a support frame that supports the grain tank so as to be swingable around a lifting shaft core,
The display unit includes a pointer provided on one of the support frame and the grain tank, and an indicator provided on the other of the support frame and the grain tank.

According to this configuration, the pointer is placed on one of the support frame and the grain tank, compared to providing a detection unit that detects the swing of the grain tank and a display unit that operates by inputting detection information from the detection unit. The display unit can be obtained by a simple structure that is provided and the indicator is simply provided on the other of the support frame and the grain tank, and the confirmation that the grain tank has switched to the descending storage posture can be made inexpensively.

In a preferred embodiment, a bearing portion that supports the grain tank so as to swing up and down around the lifting axis is provided with a position holding mechanism that holds the position of the grain tank in the lifting axis direction. Yes.

According to this configuration, the position holding mechanism can prevent the grain tank from moving in the direction of the lifting / lowering axis at the position where the lifting / lowering axis is located due to stationary inertia or dynamic inertia accompanying the start and stop of the traveling machine body. It is suppressed and it is easy to maintain the supply port and the input port in a predetermined connection state.

In a preferred embodiment, a support frame is provided that supports, from below, a portion of the bottom of the grain tank that is opposite to the side where the bearing portion is located.

According to this configuration, the portion of the bottom of the grain tank that is opposite to the side on which the lifting / lowering axis is located is supported from below by the support frame, thereby preventing the grain tank from swinging due to running vibration or the like. It is easy to suppress and it is easy to maintain the supply port and the input port in a predetermined connection state.

In a preferred embodiment, a plurality of the support frames are arranged in a direction along the direction of the lifting axis.

According to this configuration, the portion of the bottom of the grain tank opposite to the side where the lifting axis is located is supported from below by the support frame at a plurality of locations along the direction of the lifting axis, It is possible to effectively prevent or suppress the swing of the grain tank due to running vibration or the like, and to easily maintain the supply port and the input port in a predetermined connection state.

In a preferred embodiment, a position holding unit that holds the position of the grain tank in the up-and-down axis direction is provided on the uppermost support frame among the plurality of support frames.

According to this configuration, even if the grain tank tries to move in the lifting / lowering axis direction at the part opposite to the lifting / lowering axis side due to stationary inertia or dynamic inertia accompanying the start or stop of the traveling machine body, It is prevented or suppressed, and it is easy to maintain the supply port and the input port in a predetermined connection state.

In a preferred embodiment, the support frame is supported by the threshing device.

According to this configuration, it is preferable to provide the support frame with a shorter length in the vertical direction of the aircraft than the support frame supported by the aircraft frame, and each support frame can be equipped compactly.

[4] The means for solving the problem [4] is as follows.

A grain tank for storing the grain from the threshing device is provided so as to be swingable up and down around the lifting shaft core over the descending storage posture and the rising discharge posture,
Among the grain tanks, a grain outlet is provided at the lower end in the raised discharge posture,
An actuator for swinging the grain tank;
An operation unit for operating the actuator,
The operation unit is provided in a portion of the traveling machine body on the same side as the grain outlet is provided in plan view.

According to this configuration, the grain outlet can be easily viewed from the position where the operating part is operated, and the operating part can be operated while viewing the situation such as the grain outflow of the grain outlet.
Therefore, it is easy to avoid improper operation such as actuating the actuator suddenly, and it is difficult to cause grain spillage.

In one preferred embodiment, the grain tank is provided behind the driving unit of the traveling machine body,
The elevating shaft core is set to run along the longitudinal direction of the traveling machine body,
The grain outlet is provided on the lateral side of the traveling machine body of the grain tank,
The said operation part is provided in the site | part on the same side as the said grain discharge port provided in the planar view among the said operation parts.

This configuration is convenient because the operation unit can be operated while looking at the grain outlet from the operation unit, so there is no need to get off the operation unit.

In one preferred embodiment, the operation unit includes an operation cabin, and a step provided on a lateral outer side of the operation cabin,
The operation unit is provided above the step.

本 According to this configuration, the operation unit can be operated from the operation unit, but it can be operated while easily looking at the state of the grain outlet from the outside of the operation cabin, and the actuator can be operated more appropriately.

In a preferred embodiment, the step includes a handrail,
The operation unit is supported by the handrail.

本 According to this configuration, it is possible to deploy the operation unit at a height where it can be easily operated by a simple support structure in which a handrail is provided with a post function.

In a preferred embodiment, a cover surrounding the operation unit is provided.

According to this configuration, the operation unit can be protected so that dust or dirt generated during the harvesting work adheres to the operation unit and malfunctions such as malfunctions do not occur.

In a preferred embodiment, a display unit for displaying that the grain tank has been switched to the descending storage posture is provided.

In one preferred embodiment, comprising a support frame that supports the grain tank so as to swing up and down,
The display unit includes a pointer and an index,
The pointer is provided on one of the support frame and the grain tank,
The index is provided on the other of the support frame and the grain tank.

According to this configuration, compared to providing a detection unit that detects the swing of the grain tank and a display unit that operates by inputting detection information from the detection unit, the pointer is provided on the support shaft mounting member and the index is supported. The display unit can be obtained by a simple structure only provided on the frame, and the confirmation that the grain tank has been switched to the lowered storage posture can be made inexpensively.

According to this configuration, the grain discharged from the grain tank can be guided down to the collecting means such as the carrier of the transport vehicle by the guide chute, and quickly supplied to the collecting means without spilling out of the collecting means. it can.
The guide chute can be switched between the lowered use posture and the raised retracted posture while the left lateral side and the right lateral side of the guide chute are supported by the bending and stretching links. Since the left tank side link and the right tank side link can be interlocked and swayed by simple interlocking connection means that connects the left and right tank side links to the rotating spindle by welding, the guide chute The posture of the guide chute can be changed smoothly while preventing the occurrence of twisting at low cost.

In one preferred embodiment, the guide chute is switched to the lowered use posture in conjunction with the swinging of the grain tank to the rising and discharging posture, and linked to the swinging of the grain tank to the lowered storage posture. And a linkage mechanism that links the grain tank and the guide chute so that the guide chute switches to the raised storage posture,
The linkage mechanism includes the left lateral bending link or the right lateral bending link.

In a preferred embodiment, the lifting cylinder is connected across the grain tank and a cylinder support provided in the traveling machine body, and swings the grain tank between the descending storage attitude and the ascending discharge attitude. Is provided,
A lock member is provided that regulates the shortening of the lifting cylinder when the grain tank is lifted and swung.
The lock member is configured to be detachably attached to the piston rod of the elevating cylinder. When the lock member is attached to the piston rod, the lock member acts on the piston rod side with the tube of the elevating cylinder as a reaction point. It is configured as follows.

According to this configuration, when carrying out inspection work by raising the grain tank from the lowered storage posture, the shortening of the lifting cylinder can be regulated by the locking member by attaching the locking member, and oil leakage of the lifting cylinder can be prevented. The resulting grain tank can be prevented from descending.

In one preferred embodiment, the cross-sectional shape of the lock member is formed in a U-shape so that the piston rod enters the lock member when the lock member is mounted.
A locking portion is provided on the inner peripheral portion of the lock member,
The engaging portion is engaged with the piston rod to prevent the locking member from coming off the piston rod, and the engagement with the piston rod is released to engage the inner peripheral portion of the locking member. It is possible to change the state to the disengaged state in which the piston rod can be moved in and out.

According to this configuration, when the lock member is attached to the piston rod, the lock member can be prevented from being detached from the piston rod by changing the state of the locking portion to the engaged state.

It is a left view which shows the whole combine. It is a right view which shows the whole combine. It is a top view which shows the whole combine. It is a rear view which shows the whole combine. It is a right view which shows a threshing apparatus and a grain tank. It is a rear view which shows a threshing apparatus and a grain tank. It is a perspective view which shows a grain tank. It is a top view which shows the grain discharge part and guidance chute | shoot of a grain tank. (A) is a right view which shows the support structure of a grain tank, (b) is a vertical side view which shows a bearing part. It is a perspective view which shows the grain tank of a raise discharge attitude | position. It is a front view which shows the grain tank of a descending storage attitude | position. It is a front view which shows the guide chute | shoot of a descent | fall use posture. It is a vertical front view which shows the guide chute | shoot of a raise storage attitude | position. It is a top view which shows a grain escape space. It is a rear view which shows a linkage mechanism. It is explanatory drawing which shows the attitude | position relationship with the grain tank of the guidance chute | operated operated by a linkage mechanism. It is a front view which shows the guidance chute | shoot with the extended guidance chute removed. It is a top view which shows the connection part of the state which connected the supply port and the insertion port. It is a perspective view which shows a tank side wall member and an inner tank side wall member. It is a perspective view which shows a cereal side wall member and an internal cereal side wall member. It is a right view which shows the connection part of the state which connected the supply port and the insertion port. It is a vertical back view of the connection part of the state which connected the supply port and the insertion port. It is a vertical front view of the connection part of the state which connected the supply port and the insertion port. It is a vertical side view of the connection part of the state which connected the supply port and the insertion port. It is a top view which shows a lock | rock part. (A) is a rear view showing the lock member in use, (b) is a perspective view showing the lock member, and (c) is a sectional view taken along the line IIXVIc-IIXVIc in FIG. 26 (a). It is a top view which shows a bending / extension link. (A) is sectional drawing which shows the grain tank provided with another implementation structure, (b) is sectional drawing which shows a corner part. It is a side view which shows the combine provided with another implementation structure. It is a top view which shows the combine provided with another implementation structure. It is a vertical front view which shows the grain tank provided with another implementation structure. It is a top view which shows the grain tank provided with another implementation structure. It is a vertical side view which shows a gap filling member. It is a front view which shows a gap filling member. It is a side view which shows the whole combine with which the driving | operation part which has another implementation structure was provided. It is a top view which shows the front part of the combine provided with the driving | operation part which has another implementation structure. It is a side view which shows the driving | operation part which has another implementation structure. It is a perspective view which shows the support structure in the decomposition | disassembly state for operation parts. (A) is a top view which shows a display part, (b) is a front view which shows a display part, (c) is a side view which shows a display part. It is a rear view which shows the attachment structure of a decorative cover. It is a side view which shows the attachment structure of a decorative cover.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a left side view showing an entire combine according to an embodiment of the present invention. FIG. 2 is a right side view showing the entire combine according to the embodiment of the present invention. FIG. 3 is a plan view showing the entire combine according to the embodiment of the present invention. FIG. 4 is a rear view showing the entire combine according to the embodiment of the present invention. As shown in FIGS. 1 to 4, the combine according to the embodiment of the present invention has a pair of left and right

front wheels

2, 2 movably supported at the front of the body frame 1, and a pair of left and right at the rear of the body frame 1. The

rear wheels

3 and 3 are supported so as to be steerable, and are provided with a traveling machine body configured to be self-propelled by the front wheels 2 and the rear wheels 3. A driving unit 4 provided with a driving cabin 4a is provided at the front of the traveling machine body. A threshing device 5 and a grain tank 20 are provided at the rear of the traveling machine body. The traveling machine body is provided with a reaping portion 10 in which a feeder 11 is connected to a front portion of the threshing device 5 so as to be swingable up and down.

This combine performs harvesting operations such as rice and wheat by moving the traveling machine with the cutting unit 10 in the descending operation state, and is configured as follows.

The pair of left and right

front wheels

2 and 2 are supported by a traveling mission case (not shown) mounted on the front part of the body frame 1 so as to be freely driven, and are located between the front wheel 2 and the rear wheel 3. It is driven by the driving force transmitted from the engine 7 equipped to the traveling mission case.

The feeder 11 is extended from the front part of the threshing device 5 through the lower part of the driving cabin 4a and between the pair of left and right

front wheels

2, 2 so as to freely swing up and down to the front part of the traveling machine body. The reaping part 10 is in a lowered working state in which the reaping part frame 13 connected to the front end of the feeder 11 is lowered to the ground and the reaping part frame 13 when the feeder 11 is swung up and down by the elevating cylinder 12. Ascends and descends to a raised non-working state that rises high from the ground. The mowing unit 10 is driven by the driving force from the engine 7 and is driven in the descending operation state, thereby harvesting planted cereals such as rice and wheat and supplying the reaped cereals to the threshing device 5.

That is, the dividers 14 provided on the left and right of the front end portion of the cutting unit frame 13 distribute the planted cereals into planted corns that are to be harvested and planted cereals that are not to be harvested. A rotating reel 15 that rotates above the reaping part frame 13 rakes the tip of the planted cereal to be reaped toward the rear upper side of the reaping part frame 13. The clipper-type cutting device 16 provided at the lower part of the cutting unit frame 13 cuts the stock of the planted cereals in the scraped state and harvests the planted cereals. A lateral feed auger 17 that rotates in the rear part of the harvesting part frame 13 feeds the harvested cereal meal along the transport deck 13a to the forward position of the feeder 11. The whole of the harvested cereal culm from the head to the tip of the feeder 11 is fed to the feeder 11 by the take-up arm 17a equipped on the lateral feed auger 17 and fed to the threshing device 5 by the feeder 11.

The threshing device 5 introduces the whole of the harvested cereal culm from the feeder 11 to the tip of the feeder 11 into a handling room (not shown), and rotates around the handling cylinder axis P facing the front and rear of the traveling machine body in the handling room. Threshing processing is performed by the barrel 5a (see FIGS. 5 and 11), the processed product after the threshing process is sorted into grains and dust, and the grain after the sorting process is carried out to the lateral outside of the threshing machine body. The grain from the threshing device 5 is supplied from the threshing device 8, which is extended from the carry-out portion of the threshing device 5, and the extending end side is located between the threshing device 5 and the operation unit 4.

The grain tank 20 will be described in detail.
As shown in FIGS. 5 to 10, the grain tank 20 includes a tank body 20A and a tank frame 21 that supports the tank body 20A from below, and is positioned over the entire width or almost the entire width of the traveling machine body ( 4) and is arranged above the threshing device 5.

The tank frame 21 is configured by assembling a plurality of traveling frames in the front-rear direction and a plurality of traveling frames in the lattice pattern.

20 A of tank main bodies are the bottom part 22 attached to the upper surface side of the tank frame 21, the front wall 23 located in the traveling body front side of the grain tank 20, and the rear wall located in the traveling body rear side of the grain tank 20 24, a left side wall 25 positioned on the left side of the traveling body of the grain tank 20, a right side wall 26 positioned on the right side of the traveling body of the grain tank 20, and an upper wall 27 covering the upper side of the storage space. I have. The part 23b on the left end side of the front wall 23, which is provided with a later-described input port 84, is formed so that the shape in plan view is linear. The upper wall 27 is formed in a shape in which the center side bulges upward as viewed in the front-rear direction.

Inside the tank body 20A, there are a plurality of laterally connected connecting rods 28 arranged at predetermined intervals in the longitudinal direction of the traveling vehicle body, and a plurality of longitudinally connected connecting rods 29 arranged at predetermined intervals in the lateral direction of the traveling aircraft body. Is equipped. The connecting rod 28 facing the traveling machine body is provided in two upper and lower stages. The traveling rod side connecting rod 28 and the traveling aircraft longitudinal connecting rod 29 are displaced in the vertical direction of the traveling vehicle body so as not to cross each other. A connecting rod 28 facing the traveling machine body connects the left lateral wall 25 and the right lateral wall 26 which are vertical walls facing each other in the lateral direction of the traveling machine body, and to the outside of the tank due to heavy pressure of the grains on the left lateral wall 25 and the right lateral wall 26. It is constructed so as to prevent the swelling. The front and rear connecting rods 29 are connected to the front wall 23 and the rear wall 24, which are vertical walls facing each other in the front and rear direction of the traveling body, and the outer side of the tank due to the heavy pressure of the grains on the front wall 23 and the rear wall 24. It is configured to prevent swelling. The traveling machine body side connecting rod 28 and the traveling machine body front and rear connecting rod 29 are mounted on the inner surfaces of the front wall 23, the rear wall 24, the left side wall 25, and the right side wall 26 along the vertical direction of the grain tank 20. It is connected to the front wall 23, the rear wall 24, the left side wall 25, and the right side wall 26 through the reinforcing member.

As shown in FIGS. 7, 8 and 9, a grain outlet 31 is formed in the lower part of the right lateral wall 26. The grain outlet 31 is formed over the entire width of the right lateral wall 26. The grain outlet 31 is formed in a shape in which the opening height on the center side in the lateral width direction of the grain outlet 31 is higher than the opening heights on both ends. Specifically, the shape of the upper edge of the grain outlet 31 is a mountain shape that is bent between the center side part and both end parts of the grain outlet 31. Therefore, the grain outlet 31 allows the grain to flow out of the grain tank 20 in a state where the grain outflow amount per unit time at the center side is larger than the grain outflow amount per unit time at both ends. In order to make the opening height on the center side of the grain outlet 31 higher than the opening height on both ends, the shape of the upper edge of the grain outlet 31 is made into a mountain shape, and the shape of the upper edge is an arc over the entire length. It may be shaped or bowed.

The bottom 22 is formed so that the inner surface is in a straight line across the end on the left lateral wall side and the grain outlet side as viewed in the longitudinal direction of the traveling body. The bottom part 22 constitutes a plate member 22b (see FIG. 8) that constitutes a part of the bottom part 22 that is located above the connecting drum part 33 provided at the right end of the grain tank 20, and other parts. And a plate member. The plate member 22b constituting the portion located on the connecting drum portion 33 constitutes a lid that closes the opening of the recessed portion provided in a state where the connecting drum portion 33 opens toward the grain tank. Yes. The concept of forming a straight line also means that the bottom part 22 is almost straight due to distortion and error generated during the manufacture and assembly of the bottom part 22. Protruding some ribs in the direction along the lateral direction of the traveling machine body so as not to obstruct the grain flow to the grain outlet 31 is also a concept of forming a straight line.

As shown in FIG. 8, a patch plate 32 is attached to the corner where both ends of the grain outlet 31 inside the grain tank 20 are located. The backing plate 32 is mounted in an inclined posture that is positioned closer to the center side in the lateral width direction of the grain outlet 31 toward the side closer to the grain outlet 31, and the grain is directed toward the center side of the grain outlet 31. Guide them to flow. The height of the backing plate 32 is set higher than the height at the end of the grain outlet 31. Therefore, the backing plate 32 prevents the grain from entering and remaining in the corner formed by the right lateral wall 26 and the rear wall 24 or the front wall 23 at a position higher than the grain outlet 31.

The right end portion side of the grain tank 20 is supported by a bearing portion 40 provided on the front and rear sides of the grain tank 20. The front and rear bearing portions 40 are constituted by a traveling shaft front-rear support shaft 41 fixed to the grain tank 20 and a bearing member 42 fitted to the support shaft 41 from the outside while allowing the rotation of the support shaft 41. It is. The support shafts 41 of the front and rear bearing portions 40 are fixed to the front end portion and the rear end portion of the connecting drum portion 33 provided at the right end portion of the grain tank 20. The bearing members 42 of the front and rear bearing portions 40 are arranged on the lateral sides of the threshing device 5, and are attached to the upper frame 45 of the frame structure 1 and the support frame 43 of the frame structure connected to the body of the threshing device 5. The grain tank 20 is supported by the front and rear support shafts 41 and includes a shaft core provided on the front and rear support shafts 41. Is supported so as to be swingable up and down with respect to the traveling machine body. The lifting axis X is located below the bottom 22. The raising / lowering axis X is located above the handling cylinder axis P of the threshing device 5.

The operation part 34 is provided in the state supported by the tank frame 21 under the center part in the front-back direction of the grain tank 20. The grain tank 20 is lowered and raised around the lifting axis X by the lifting cylinder 35 connected to the operation portion 34 and the upper end portion of the cylinder support frame 46 that is provided on the support frame 43 and is vertically oriented. It is configured to be swingable over the discharging posture. A reinforcing frame 47 is connected to an intermediate position in the vertical direction of the cylinder support frame 46 and the upper frame 45. The posture of the cylinder support frame 46 and the reinforcement frame 47 in the front-rear direction of the traveling machine body is an inclined posture substantially along the inclination of the elevating cylinder 35 when the grain tank 20 is in the lowered storage posture.

FIG. 11 is a front view showing the grain tank 20 in the descending storage posture. As shown in FIGS. 6 and 11, when the operation unit 34 is pulled down by the elevating cylinder 35, the grain tank 20 assumes a lowered storage posture so as to store the grains from the cerealing device 8. At this time, the posture of the bottom 22 becomes a horizontal posture. At this time, the bottom portion 22 may be slightly inclined with respect to the horizontal plane, that is, a substantially horizontal posture, and the substantially horizontal posture is also a concept of a horizontal posture. Moreover, it will be in the state which the bottom part 22 and the upper end of the top plate 5b provided in the threshing apparatus 5 adjoin. That is, the mounting height of the bottom portion 22 with respect to the traveling machine body is substantially the same as the mounting height of the top plate 5b with respect to the traveling machine body, and the bottom portion 22 and the top plate 5b are in opposition to each other.

FIG. 10 is a perspective view showing the grain tank 20 in the raised discharge posture. As shown in FIGS. 10 and 12, when the operation unit 34 is pushed up by the elevating cylinder 35, the grain tank 20 flows out of the grain from the grain outlet 31 toward the right side outside the traveling machine body by natural outflow. Ascending discharge posture. That is, the bottom 22 has an inclined posture in which the end on the left lateral wall side of the bottom 22 is on the upper side, and the grain outlet side of the bottom 22 is on the lower side. It flows by natural flow.

As shown in FIGS. 7, 8, and 11, a guide chute 50 is provided on the right end side of the grain tank 20.
The guide chute 50 includes a chute main body 51 and side plate portions 52 that rise from both lateral ends of the chute main body 51 to the side where the guide surface 51a of the chute main body 51 is located. A detachable extension guide chute 53 that extends the length of the chute main body 51 and the side plate portion 52 in the grain guide direction is attached to the distal end side of the guide chute 50.

The base end side of the guide chute 50 is disposed outside the grain discharge port 31 and is rotatably supported by the discharge side end part of the discharge deck part 36 provided in the grain tank 20. Further, it is configured to be able to swing up and down with respect to the grain tank 20 in a downward use posture and an upward retracted posture around the swing axis Y of the traveling body located in the proximal end of the guide chute 50. The swing axis Y is located below or at the same height as the bottom 22 of the grain tank 20.

A bending / extending link 54 for performing the up / down swinging operation of the guide chute 50 and setting the posture of the guide chute 50 is connected across the side plate portions 52 on both sides of the guide chute 50 and the grain tank side. The grain tank side of the bending / stretching link 54 is connected to a bowl-shaped cover portion 37 located above the discharge deck portion 36. The cover part 37 is provided in the grain tank 20 so as to extend laterally outward from the upper wall 27. The tank side links 54a of the laterally extending and contracting links 54 are connected to each other by a single rotating support shaft 55 rotatably supported by the cover portion 37.

FIG. 12 is a front view showing the guide chute 50 in the lowered use posture. As shown in FIG. 12, the bending / extending link 54 is operated to the extending side, the guide chute 50 is lowered and swung by gravity, and the bending / extending link 54 is in the extension limit state, and the leading end side of the guiding chute 50 is suspended and supported. Then, the guide chute 50 drops the grain flowing out from the grain outlet 31 of the grain tank 20 and flowing down from the discharge deck part 36 toward a supply target such as a carrier bed located on the lateral outer side of the traveling machine body. It will be in the lowering use posture so as to make it.

FIG. 13 is a longitudinal sectional front view showing the guide chute 50 in the raised storage posture. As shown in FIG. 13, when the bending / extending link 54 is operated to the shortened side to pull up the guiding chute 50 and the bending / extending link 54 is in a predetermined shortened state, the guide chute 50 is a traveling machine body than in the lowered use posture. It is in the raised retracted posture so as to retire laterally inside. When the guide chute 50 is in the raised storage posture, the extended guide chute 53 is accommodated below the upper end 37a of the cover portion 37.

When the guide chute 50 is in the ascending storage posture, the guide chute 50 is in a mounting posture in which the right lateral wall 26 as the grain tank vertical wall connected to the grain discharge port 31 is covered with the chute body 51 at a predetermined distance from the lateral side of the tank, A grain retreat space K is formed between the right side wall 26 and the right side wall 26. When the grain remains in the guide chute 50 that is switched to the raised storage posture, the grain escape space K accommodates the remaining grain and allows the guide chute 50 to be switched to the raised storage posture. It is configured. The grain escape space K is formed over the entire width or almost the entire width of the right lateral wall 26.

As shown in FIGS. 13 and 14, the discharge deck portion 36 is a bottom portion that closes the lower portion of the grain retreat space K. The depth of the grain evacuation space K is set to be larger than the rising height 52a of both side plate portions 52 of the guide chute 50 so that the volume of the grain evacuation space K becomes large. When the grain tank 20 is in the raised storage posture, the grain evacuation space K is positioned with respect to the front wall extension 23a in which one side plate 52 extends from the front wall 23 to the front side of the grain evacuation space K. The side plate portion 52 and the front wall extension portion 23a are positioned so as to overlap the front wall extension portion 23a on the opposite side to the side to be closed, and are configured to close the front side of the grain retreat space K. When the grain tank 20 is in the ascending storage posture, the other side plate part 52 has the grain evacuation space K with respect to the rear wall extension 24a extending from the rear wall 24 to the rear side of the grain evacuation space K. The side wall portion 52 and the rear wall extension portion 24a are positioned so as to overlap the rear wall extension portion 24a on the side opposite to the side where they are positioned, and are configured to close the rear side of the grain retreat space K. The upper part of the grain evacuation space K is configured to be covered by the cover part 37, and the extended guide chute 53 protrudes upward from the guide chute 50. Particle spillage is prevented.

As shown in FIG. 15, the guide chute 50 and the grain tank 20 are linked by a linkage mechanism 58 provided with an operation cable 57. The linkage mechanism 58 includes not only the operation cable 57 but also one bending link 54 of the pair of bending links 54. The linkage mechanism 58 is provided on the rear side of the grain tank 20.

As shown in FIG. 15, the operation cable 57 includes an inner cable 57 a that is connected to a tank side link 54 a of the bending / extending link 54 and an inner holder 59 provided below the grain tank 20. The operation cable 57 includes an outer cable 57b in which an inner cable 57a is slidably mounted.

The inner holder 59 is supported by a cable operation frame 60 connected to the tank frame 21. The chute side end of the outer cable 57b is supported by an outer holder 61 provided on the front wall 23. The tank side end of the outer cable 57 b is provided at the upper end of the support arm 62 and supported by the outer holder 63. The support arm 62 protrudes upward from the support frame 43.

FIG. 15 is a front view showing the operation of the linkage mechanism 58. FIG. 15A shows the linkage mechanism 58 in a state where the grain tank 20 is in the lowered storage posture. FIG. 15B shows the linkage mechanism 58 in a state where the grain tank 20 is swung by a predetermined amount from the ascending discharge posture to the descending storage posture. FIG. 15C shows the linkage mechanism 58 in a state where the grain tank 20 is in the ascending discharge posture. FIG. 16 is an explanatory diagram showing the posture relationship between the guide chute 50 operated by the linkage mechanism 58 and the grain tank 20. The vertical axis in FIG. 16 indicates the postures of the guide chute 50 and the grain tank 20, and the horizontal axis indicates the elapsed time of the posture change. [TD] on the vertical axis indicates the descending storage posture of the grain tank 20, and [TU] on the vertical axis indicates the upward discharge posture of the grain tank 20. [SU] on the vertical axis indicates the raised storage posture of the guide chute 50, and [SD] on the vertical axis indicates the lowered use posture of the guide chute 50. A line [T] in FIG. 16 indicates a change in posture of the grain tank 20, and a line [S] indicates a change in posture of the guide chute 50.

As shown in FIGS. 15 and 16, when the grain tank 20 is switched from the descending storage posture to the ascending discharge posture, when the grain tank 20 starts swinging from the descending storage posture to the ascending discharge posture, the inner cable 57 a is As soon as the inner holder 59 is lifted, the loosening operation is started to start the operation of the bending / extension link 54 toward the extension side, and the operation cable 57 immediately starts swinging the grain tank 20 from the lowered storage position to the upward discharge position. The guide chute 50 starts to swing from the raised retracted position to the lowered use position. When the grain tank 20 swings a predetermined amount from the lowered storage posture, the inner cable 57a is loosened by the rise of the inner holder 59 to operate the bending / extension link 54 to the extension limit state. The guide chute 50 is switched to the lowered use posture before switching to the lift and discharge posture. After the guide chute 50 is switched to the lowered use posture, the inner cable 57a generates slack by the rise of the inner holder 59 due to the upward swing of the grain tank 20, and the operation cable 57 is configured so that the grain tank 20 is raised and discharged. The guide chute 50 is maintained in the lowered use posture until the switch is made.

When the grain tank 20 is switched from the ascending discharge posture to the descending storage posture, even if the grain tank 20 starts swinging from the ascending discharge posture to the descending storage posture and the inner holder 59 starts to descend, the inner cable 57a The operation cable 57 is provided with a slack and does not immediately start the operation to the shortened side of the bending / extension link 54, and the operation cable 57 does not start the swing of the grain tank 20 from the ascending discharge position to the descending storage position. The swing from the lowered use posture to the raised retracted posture is not started immediately. When the grain tank 20 swings a predetermined amount from the ascending discharge posture to the descending storage posture, the inner cable 57a is released from the slack by the lowering of the inner holder 59, and then the inner cable 57a is lowered by the lowering of the inner holder 59. When the pulling operation is started, the operation cable 57 starts the operation toward the shortening side of the bending / extension link 54, and the operation cable 57 lowers the guide chute 50 after the grain tank 20 swings a predetermined amount from the ascending discharge posture to the descending storage posture. The swing from the use posture to the raised storage posture is started. Thereafter, the inner cable 57a is pulled by the lowering of the inner holder 59 to operate the bending / extending link 54 to the shortened side, and the operation cable 57 raises the guide chute 50 when the grain tank 20 switches to the lowered storage posture. Switch to the retracted position.

Accordingly, the linkage mechanism 58 links the guide chute 50 to the lowered use posture in conjunction with the swing of the grain tank 20 to the upward discharge posture, and links to the swing of the grain tank 20 to the downward storage posture. The guide chute 50 is switched to the raised storage posture.

Furthermore, as soon as the grain tank 20 starts swinging from the descending storage posture to the ascending discharge posture, the linkage mechanism 58 starts swinging the guide chute 50 from the ascending storage posture toward the descending use posture. Then, the linkage mechanism 58 places the guide chute 50 in the lowered use posture before the grain tank 20 is switched to the upward discharge posture.

Further, the linkage mechanism 58 starts the swing of the grain tank 20 from the ascending discharge posture to the descending storage posture and swings a predetermined amount, and then the guide chute 50 moves from the descending use posture to the ascending storage posture. Start rocking. The linkage mechanism 58 generates the swing delay of the guide chute 50 due to the slack of the inner cable 57a. Then, the linkage mechanism 58 places the guide chute 50 in the raised storage posture when the grain tank 20 is in the lowered storage posture.

As shown in FIGS. 17 and 18, an inclined guide 65 that guides the grain toward the center in the width direction of the outlet 51 b of the guide chute 50 is supported on both side ends of the guide chute 51 of the guide surface 51 a of the chute body 51. It is. Each of the inclined guides 65 is provided with an angle adjusting means 66 having an arc-shaped adjusting hole 67.

The angle adjusting means 66 of each of the inclined guides 65 is inserted into the fan-shaped positioning plate 68 provided at the base of the inclined guide 65, the arc-shaped adjusting hole 67 provided in the positioning plate 68, and the adjusting hole 67. And a positioning bolt 69 attached to the chute body 51.

The positioning plate 68 swings integrally with the tilt guide 65 about a connecting shaft 70 that rotatably connects the base end side of the tilt guide 65 to the chute body 51. The positioning bolt 69 is configured to fix the tilt guide 65 to the chute body 51 at a predetermined mounting angle by fastening and fixing the positioning plate 68 to the chute body 51.

That is, the fixing of the positioning plate 68 with respect to the chute body 51 by the positioning bolt 69 is released, and the swinging guide 65 is swing-adjusted with the connecting shaft 70 as the swinging fulcrum, and the tilting guide 65 reaches a predetermined adjustment position. By tightening the positioning bolt 69 and fixing the positioning plate 68 to the chute body 51, the angle of the inclined guide 65 can be changed so as to guide the grain toward the center of the outlet 51b of the guide chute 50. .

Therefore, when performing the harvesting operation, the grain tank 20 is lowered by the elevating cylinder 35 and switched to the lowered storage posture, so that the grain from the threshing device 5 is supplied to the grain tank 20 by the lifting device 8. And stored. A state in which the accumulated height of the grains stored in the grain tank 20 is made as uniform as possible over almost the entire grain tank 20 due to the straight shape extending from the left side wall end of the bottom 22 to the grain outlet side. Can be stored.

In order to take out the grain from the grain tank 20, the grain tank 20 is lifted by the lifting cylinder 35 and switched to the rising discharge posture. Then, since the left side wall side of the grain tank 20 is on the upper side and the grain outlet side is on the lower side, the shape of the bottom 22 is straight across the end on the left side wall side and the grain outlet side. Thereby, the grain located inside the grain tank 20 smoothly flows to the grain outlet 31 by natural flow. Then, since the grain is guided to flow to the grain outlet 31 by the patch plate 32, the grain can be smoothly discharged from the grain outlet 31. When the grain tank 20 is switched to the upward discharge posture, the guide chute 50 is automatically switched to the downward use posture by the linkage mechanism 58, and the grain that has flowed out from the grain outlet 31 is guided from the discharge deck portion 36. It can be supplied to the supply target while being caused to flow to the chute 50 and being guided by the guide chute 50 and the inclined guide 65 so as to flow down to the supply target such as the carrier of the traveling machine side.

Even if the grain tank 20 is slightly swung from the ascending discharge posture to the descending storage posture and adjusting the outflow amount of the kernel, the grain tank 20 starts to swing toward the descending storage posture, The guide chute 50 is still in the lowered use posture due to the action of the linkage mechanism 58 that starts swinging the guide chute 50 toward the upward retracted posture after swinging a predetermined amount, and is supplied by the guide chute 50 and the inclined guide 65. It is possible to guide the flow down to the subject as prescribed.

When returning the grain tank 20 from the ascending discharge posture to the descending storage posture, even if the grain remains in the guide chute 50, the remaining grain is retreated into the grain retreat space K and the guide chute 50 is swung upward. The guide chute 50 is automatically switched to the raised storage posture by the linkage mechanism 58.

As shown in FIG. 9B, each of the front and rear bearing portions 40 is provided with a position holding mechanism 73 having an annular positioning protrusion 72 provided on the support shaft 41. The position holding mechanism 73 for each of the front and rear bearing portions 40 holds the position of the grain tank 20 in the vertical axis direction, and the grain tank 20 is driven by the stationary inertia or dynamic inertia due to the start or stop of the traveling machine body. It is configured to prevent or suppress displacement in the front-rear direction.

Specifically, the position holding mechanism 73 of each of the front and rear bearing portions 40 is arranged at the front and rear sides of the bearing main body 42a through which the support shaft 41 of the bearing member 42 is inserted and positioned on the support shaft 41. A protrusion 72 and a positioning step 74 are provided. The positioning protrusion 72 is configured by a detachable retaining ring attached to the support shaft 41.

The position holding mechanism 73 of each of the front and rear bearing portions 40 is configured such that when the grain tank 20 tries to move forward and backward, the support shaft 41 tries to move forward and backward together with the grain tank 20, so that the positioning protrusion 72 and positioning When the end surface of the stepped portion 74 comes into contact with the end surface of the bearing body 42a, the shift movement of the grain tank 20 is prevented or suppressed.

As shown in FIG. 11, when the grain tank 20 is in the lowered storage posture, the portion of the bottom portion 22 opposite to the side where the bearing portion 40 is located and the portion close to the bearing portion 40 is A portion that is supported from below by a support frame 43 via a frame-side support structure 76 that includes a leg frame 75, and is a portion on the opposite side of the bottom portion 22 from the side where the bearing portion 40 is located, and is a portion far from the bearing portion 40 However, it is comprised so that it may be supported from the downward direction by the threshing apparatus 5 via the threshing side support structure 78. Accordingly, the grain tank 20 in the descending storage posture is stably supported so that the swinging movement of the part away from the lifting axis X is difficult to occur.

As shown in FIGS. 10 and 11, the frame side support structure 76 includes a plurality of leg frames 75 provided on the grain tank side. The plurality of leg frames 75 extend downward from a predetermined portion of the tank frame 21 in a state in which the leg frames 75 are arranged at predetermined intervals in a direction along the direction of the lifting axis X. When the grain tank 20 is in the lowered storage posture, each leg frame 75 is supported by the frame material 48 from below with the lower end abutting on the upper surface of the frame material 48 of the support frame 43 facing the traveling machine body.

Therefore, when the grain tank 20 is in the lowered storage posture, the frame-side support structure 76 has a predetermined portion of a part on the opposite side of the bottom 22 of the grain tank 20 to the side where the bearing 40 is located, and a plurality of legs. The support frame 43 supports the frame 75 and the tank frame 21 from below.

As shown in FIGS. 10 and 11, the threshing side support structure 78 includes a pair of support frames 79 and 79 supported by the threshing device 5. The pair of support frames 79, 79 protrudes upward from the traveling machine body on the top plate 5 b of the threshing device 5 in a state of being arranged at a predetermined interval in the direction along the direction of the lifting axis X. One support frame 79 of the pair of support frames 79, 79 is a left side of the vehicle body left side of the tank frame 21 on the tank receiving surface 79 a provided in the upper part when the grain tank 20 is in the lowered storage posture. The front end portion of the portion is received and supported from below. The other support frame 79 of the pair of support frames 79, 79 is the left side end of the traveling body of the tank frame 21 on the tank receiving surface 79a provided in the upper part when the grain tank 20 is in the lowered storage posture. The rear end portion of the portion is received and supported from below. The top plate 5b is supported by the threshing machine body so as to be swingable up and down, and the pair of support frames 79 and 79 swings up and down with respect to the threshing machine body together with the top plate 5b. The opening / closing axis of the top plate 5b is located in the front-rear direction of the traveling machine body on the right lateral end side of the traveling machine body of the top board 5b, that is, the lateral end side closer to the lifting axis X.

Therefore, the threshing side support structure 78 is a portion of the bottom 22 of the grain tank 20 on the side opposite to the side where the bearing portion 40 is located when the grain tank 20 is in the lowered storage posture, and the left side of the traveling machine body. The front end portion and the rear end portion in the end side portion are supported from below by the threshing device 5 via the support frame 79 and the tank frame 21.

The position holding | maintenance part 80 is provided in the upper end part of a pair of support frames 79 and 79 of the threshing side support structure 78, respectively. The position holding part 80 of each of the pair of support frames 79 and 79 holds the position of the grain tank 20 in the descending storage posture in the vertical axis direction and is supported by the bearing part 40 in the grain tank 20. The portion opposite to the side is configured to prevent or suppress displacement in the front-rear direction of the traveling aircraft due to stationary inertia or dynamic inertia caused by starting and stopping of the traveling aircraft.

Specifically, the position holding portion 80 provided in each of the pair of support frames 79, 79 is configured by a bent end portion facing upward of the traveling machine body provided in a member that forms a tank receiving surface 79a on the support frame 79. It is. The position holding portion 80 of the front support frame 79 receives and supports the front end portion of the tank frame 21 from the front, thereby preventing or suppressing the movement of the grain tank 20 toward the front side of the traveling machine body. The position holding portion 80 of the rear support frame 79 receives and supports the rear end portion of the tank frame 21 from the rear, thereby preventing or suppressing the movement of the grain tank 20 toward the rear side of the traveling machine body.

The attachment structure of the extension guide chute 53 will be described.
As shown in FIGS. 7 and 17, each of the side plate portions 52 of the guide chute 50 is provided with a mounting portion 82 for the extended guide chute 53 at each tip portion, and the extended guide chute 53 is connected to both the mounting portions 82. It is comprised so that it may do. Each of the side plate portions 52 is provided with a plurality of mounting bolt holes 83, and a plurality of base plate portions 53a for extending the side plate portion 52 of the guide chute 50 of the extended guide chute 53 are provided. It is configured to be detachably connected by a connecting bolt. The extended guide chute 53 is configured to overlap with the outer surface side of each of the chute main body 51 and both side plate portions 52 of the guide chute 50.

FIG. 17 is a front view showing the guide chute 50 with the extended guide chute 53 removed. As shown in FIG. 17, when the height of the ground to be supplied such as the transport carrier 56 is high, the extended guide chute 53 is removed to remove the extended guide chute 53 as in the case where the extended guide chute 53 is attached. The guide chute 50 can be in the lowered use posture without being damaged by the above.

A structure for supplying the grain to the grain tank 20 will be described.
As shown in FIG. 11, an input port 84 is provided in a portion 23 b on the left end side of the front wall 23 as a wall surface orthogonal to the lifting axis X of the grain tank 20. The input port 84 is provided at a portion of the front wall 23 located on the upper side of the grain tank 20 so as to communicate with an upper portion of the storage space of the grain tank 20.

As shown in FIG. 5, the whipping device 8 is a bucket conveyor 85F that is vertically oriented on the traveling machine body that is located on the lateral side of the threshing device 5 in a state where the conveyance start end side is connected to the grain carrying-out portion of the threshing device 5; The conveying start end side of the bucket conveyor 85F is connected to the conveying terminal end side via a relay case 85K, and is provided at the upper and lower ends of the screw conveyor 85R that is located in front of the grain tank 20 and that is located on the upper side of the screw conveyor 85R. A discharge device 86. As shown in FIGS. 20 and 22, the discharge device 86 includes a discharge case 87 whose inside communicates with the conveyance cylinder of the screw conveyor 85 </ b> R, and a plurality of rotary blades 88 that are rotatably provided inside the discharge case 87. ing. The plurality of rotary blades 88 are connected to the screw shaft 85 a of the screw conveyor 85 so as to be integrally rotatable, and are rotated by the driving force of the screw conveyor 85.

When the grain tank 20 is in the lowered storage posture, the input port 84 of the grain tank 20 and the supply port 89 of the cerealing device 8 provided in the discharge case 87 are connected by the connecting portion 90 (see FIGS. 18 and 21). Is done. The cerealing device 8 lifts the grain from the threshing device 5 to the front of the insertion port 84 by the bucket conveyor 85F and the screw conveyor 85R, and the grain from the screw conveyor 85R is released by the rotary blade 88, It is discharged from the supply port 89 to the inner peripheral side of the connecting portion 90 and supplied to the grain tank 20 from the input port 84.

As shown in FIGS. 19 to 22, the connecting portion 90 is constituted by a tank side wall member 91 provided on the grain tank side and a whipped side wall member 92 provided on the cerealing apparatus side. When switching 20 to the upward discharge posture, the connection between the input port 84 and the supply port 89 is automatically released only by swinging the grain tank 20, and the grain tank 20 is brought into the downward storage posture. When switched, the supply port 89 and the input port 84 are automatically connected.

Specifically, the connecting unit 90 is configured as follows. FIG. 18 is a plan view showing the connection portion 90 in a state where the supply port 89 and the input port 84 are connected. FIG. 19 is a perspective view showing the tank side wall member 91. FIG. 20 is a perspective view showing the cereal side wall member 92. FIG. 21 is a right side view showing the connection portion 90 in a state where the supply port 89 and the input port 84 are connected. FIG. 22 is a longitudinal rear view of the connection portion 90 in a state where the supply port 89 and the input port 84 are connected. FIG. 23 is a longitudinal front view of the connection portion 90 in a state where the supply port 89 and the input port 84 are connected. FIG. 24 is a vertical side view of the connection portion 90 in a state where the supply port 89 and the input port 84 are connected.

As shown in these drawings, one of the two divided cylinder members formed by dividing the cylinder member constituting the connecting portion 90 in the circumferential direction is provided as a tank side wall member 91, and the two divided cylinder members are provided. The other divided cylindrical member of the cylindrical member is provided as the whipped side wall member 92 to constitute the connecting portion 90.

The tank side wall member 91 includes an attachment portion 91a connected to the base portion, and is attached to a portion 23b on the left end side of the front wall 23 by the attachment portion 91a. The tank side wall member 91 includes a wall portion 91c that protrudes forward from the attachment portion 91a, and a flange portion 91d that is coupled to the protruding end portion of the wall portion 91c. The wall portion 91c includes a horizontal plate portion 91y and a vertical plate portion 91t. The vertical plate portion 91t is located closer to the discharge posture in the swinging direction of the grain tank 20 than the horizontal plate portion 91y. The attachment portion 91 a is provided with an opening 91 b that faces the insertion port 84.

The cereal side wall member 92 includes an attachment portion 92a connected to the base, and is attached to the discharge case 87 by the attachment portion 92a. The whipped side wall member 92 includes a horizontal plate portion 92y and a vertical plate portion 92t. The vertical plate portion 92t is located closer to the storage posture in the swinging direction of the grain tank 20 than the horizontal plate portion 92y. The attachment portion 92a is configured to be fitted from the outside into the protruding portion 87a that forms the supply port 89 in the discharge case 87.

When the grain tank 20 is in the lowered storage posture, the tank side wall member 91 and the whipped side wall member 92 form a cylindrical member that faces each other and connects the input port 84 and the supply port 89. That is, the connection unit 90 connects the input port 84 and the supply port 89.

When the grain tank 20 swings, the tank side wall member 91 and the whipped side wall member 92 move relative to each other so as not to interfere with each other to release the formation of the cylindrical member. That is, the connecting portion 90 separates the input port 84 and the supply port 89.

The connection unit 90 will be further described in detail.
As shown in FIG. 23, the connection part 90 is formed so that the cross-sectional shape in the direction along the direction of the raising / lowering axis X is a square. Of the connecting portion 90, a portion located on the side of the swinging direction discharge posture with respect to the straight line L connecting the vertex 90 a closest to the lifting axis X and the vertex 90 b farthest to the lifting axis X is set in the tank side wall member 91. It is. A portion of the connecting portion 90 that is located on the side of the swinging direction storage posture with respect to the straight line L is set in the whipped side wall member 92.

Thereby, the grain tank 20 is in the descending storage posture, the tank side wall member 91 abuts on the whipped side wall member 92 and the tank side wall member 91 and the whipped side wall member 92 are joined (on the straight line L). Is located at a joint surface having a relatively steep inclination angle with respect to the movement path of the tank side wall member 91. Therefore, even if the tank side wall member 91 strongly abuts on the cereal side wall member 92, the movement in the direction along the joint surface 93 hardly occurs between the tank side wall member 91 and the cereal side wall member 92.

The tank side wall member 91 is provided with the inner tank side wall member 94, the whipped side wall member 92 is provided with the inner corn side wall member 95, and the grains from the supply port 89 abut on the tank side wall member 91 and the whipped side wall member 92. It can be suppressed.

Specifically, the inner tank side wall member 94 is connected to both ends of the attachment portion 91a and the tank side wall member 91, and is supported by the tank side wall member 91 so as to be integrally movable. The inner tank side wall member 94 includes a horizontal plate portion 94 y that faces the horizontal plate portion 91 y of the tank side wall member 91 and a vertical plate portion 94 t that faces the vertical plate portion 91 t of the tank side wall member 91. The vertical plate portion 94t is located closer to the storage posture in the swing direction of the grain tank 20 than the horizontal plate portion 94y.

The inner cereal side wall member 95 is constituted by a part of the protruding portion 87a that forms the supply port 89 of the discharge case 87, and is supported by the cereal side wall member 92 via the attachment portion 92a. The inner cereal side wall member 95 includes a horizontal plate portion 95 y that faces the horizontal plate portion 92 y of the whipped side wall member 92 and a vertical plate portion 95 t that faces the vertical plate portion 92 t of the whipped side wall member 92. The vertical plate portion 95t is located closer to the discharging posture in the swing direction of the grain tank 20 than the horizontal plate portion 95y.

As shown in FIG. 23, when the grain tank 20 is in the descending storage posture and the connection part 90 connects the supply port 89 and the input port 84, the inner tank side wall member 94 is cerealed on the inner peripheral side of the connection part 90. It overlaps with the side wall member 92 and demonstrates the guard function with respect to the mashing side wall member 92, and the inner threshing side wall member 95 overlaps with the tank side wall member 91 in the inner peripheral side of the connection part 90, and exhibits the guard function with respect to the tank side wall member 91. To do.

As shown in FIG. 24, the inner tank side wall member 94 and the inner cereal side wall member 95 are in a direction along the direction of the lifting axis X in a state where the supply port 89 and the input port 84 are connected by the connecting portion 90. Are deployed so as not to overlap. Thereby, in a state where the supply port 89 and the input port 84 are connected by the connecting portion 90, the grain transfer path with respect to the center of the grain transfer path formed by the tank side wall member 91 and the whipped side wall member 92. The inner tank side wall member 94 and the inner cereal side wall member 95 are positioned on the inner peripheral side of the connecting portion 90 in a state of being opposite to each other in the direction crossing the center. Accordingly, the guards of the inner tank side wall member 94 and the inner corn flour side wall member 95 with respect to the tank side wall member 91 and the corn kernel side wall member 92 are opposite to each other in the direction crossing the grain transfer path with respect to the center of the grain transfer path. It can be performed from the location located in.

A seal member 96 is mounted on the side surface of the inner tank side wall member 94 that faces the cereal side wall member 92. The seal member 96 is attached over the side surface of the horizontal plate portion 94y and the side surface of the vertical plate portion 94t. The seal member 96 seals between the inner tank side wall member 94 and the cereal side wall member 92 so as not to cause grain leakage when the supply port 89 and the input port 84 are connected by the connecting portion 90. The seal member 96 is also configured such that when the grain tank 20 is in the lowered storage posture and the tank side wall member 91 and the whipped side wall member 92 face each other, the inner tank side wall member 94 abuts on the whipped side wall member 92. It has a shock absorbing function to reduce the impact. The seal member 96 may be mounted on a side surface of the cereal side wall member 92 that faces the inner tank side wall member 94.

As shown in FIG. 25, a lock unit 100 is provided across the grain tank 20 and the cerealing device 8. When the grain tank 20 is in the lowered storage posture, the lock unit 100 is configured to prevent the connection part 90 from being poorly connected due to running vibration or the like, so that the raising / lowering axis X of the grain raising device 8 with respect to the grain tank 20 is prevented. Positioning is performed in a direction along the line.

The lock unit 100 will be described in detail.
As shown in FIGS. 19, 21, 22, and 25, the lock portion 100 is positioned on the left side of the front wall 23 and the positioned member 101 attached to the cerealing device 8 by being supported by the cerealing side wall member 92. The positioning member 102 is attached to the grain tank 20 by being supported by the part 23b.

The positioned member 101 is composed of a rod member that protrudes upward from the cereal side wall member 92 toward the traveling machine body.

The positioning member 102 includes a positioning operation unit 103 and a guide unit 104. The positioning action part 103 is formed so that the shape in plan view is U-shaped, and has an opening 103a through which the member to be positioned 101 enters and exits on one end side. The guide unit 104 includes a pair of

inclined guide pieces

104a and 104a that are positioned separately on both lateral outer sides of the opening 103a of the positioning operation unit 103. The pair of

inclined guide pieces

104 a and 104 a are integrally formed on the opening side of the positioning action portion 103, and the positioning action portion 103 and the guide portion 104 smoothly move the member to be positioned 101 from the guide portion 104 to the positioning action portion 103. It is lined up to move to. A rubber plate 105 as an example of an elastic plate that forms a contact surface of the positioning action portion 103 with respect to the positioned member 101 and a contact surface of each of the pair of inclined guide pieces 104a with respect to the positioned member 101 as elastically deformable contact surfaces, It is mounted over the positioning action part 103 and the guide part 104.

The lock unit 100 operates as follows.
When the grain tank 20 swings toward the lowered storage posture, the positioning member 102 moves toward the positioned member 101, and the positioned member 101 is positioned between the pair of

inclined guide pieces

104a and 104a. The entry and guide unit 104 guides the member to be positioned 101 to the positioning operation unit 103 by the pair of

inclined guide pieces

104a and 104a. When the grain tank 20 further swings and assumes the lowered storage posture, the positioned member 101 enters the back side from the opening 103a of the positioning action portion 103, and the positioning action portion 103 moves in the longitudinal direction of the traveling machine body with respect to the positioned member 101. The lock portion 100 enters the lock action state so that the lock portion 100 positions the cerealing device 8 with respect to the grain tank 20.

As the grain tank 20 swings toward the upward discharge posture, the positioning member 102 moves away from the positioned member 101, and the positioned member 101 comes off from the positioning action portion 103 and the guide portion 104.

FIG. 26 (b) is a perspective view showing an exploded state of the lock member 130 for preventing the grain tank 20 from descending.

As shown in FIG. 26B, the elevating cylinder 35 is constituted by a hydraulic cylinder, and includes a cylinder support frame 46 as a support portion provided in the traveling machine body and an operation portion 34 provided in the grain tank 20. It is connected.

As shown in FIG. 26 (a), the lock member 130 is attached to the piston rod 131 of the lift cylinder 35 in a state where the grain tank 20 is lifted to the lifted discharge posture. Then, the lower end portion 130a of the lock member 130 is engaged with the upper end of the tube 132 of the elevating cylinder 35, and the upper end portion 130b of the lock member 130 is engaged with the operation portion 34 of the grain tank 20 about to descend. As a result, the lock member 130 acts against the piston rod side with the tube 132 as a reaction point to regulate the shortening of the lifting cylinder 35 and prevent the grain tank 20 from descending.

Specifically, the lock member 130 is configured as follows.
As shown in FIG. 26 (c), the lock member 130 has a U-shaped cross sectional view, and an internal space into which the piston rod 131 enters and an opening 130c through which the piston rod 131 enters and exits are formed in the lock member 130. ing. The internal space through which the piston rod 131 enters and exits and the opening 130 c are formed over the entire length of the lock member 130. A pair of locking portions 133 protruding inward from the inner peripheral surface of the lock member 130 is provided on the inner peripheral portion of the lock member 130. Each locking portion 133 is provided on a spring steel material 134 wound around the outer peripheral side of the lock member 130, and is bent through the through hole 130 d provided in the lock member 130 and enters the lock member 130 from the outside. It consists of parts.

Each locking portion 133 is located on the side where the opening 130c is located with respect to the piston rod 131 that has entered the lock member 130, and engages with the piston rod 131. It is configured to be disengaged to the disengaged state in which the piston rod 131 is disengaged so that the piston rod 131 can be moved in and out, so that the piston rod 131 can be moved in and out.

Accordingly, when the lock member 130 in which the opening 130c matches the piston rod 131 is pushed toward the piston rod 131, each locking portion 133 receives a pressing operation by the piston rod 131 and elastically deforms to the disengaged state. Then, the piston rod 131 passes between the pair of locking portions 133 and enters the lock member 130. When the piston rod 131 enters the inside of the lock member 130, the respective locking portions 133 are released from being pressed by the piston rod 131, and returned to the engaged state by the elastic restoring force, so that the lock member 130 is disengaged from the piston rod 131. Stop. As a result, the lock member 130 can be mounted on the piston rod 131 and can be stretched toward the piston rod.

When the lock member 130 attached to the piston rod 131 is pulled in a direction away from the piston rod 131, each locking portion 133 receives a pressing operation by the piston rod 131 and switches to the disengaged state. Passing between the locking portions 133 of the lock member 130, the lock member 130 is pulled out from the opening 130c. Therefore, the lock member 130 can be removed from the piston rod 131.

As shown in FIGS. 8, 11, and 28, the bending link 54 on the left side of the guide chute 50 includes a link link 54 a that is swingably supported by the grain tank 20, and the tank side link 54 a and the guide chute. 50 has a chute-side link 54b that connects the two. The bending / extending link 54 on the right side of the guide chute includes a tank side link 54a that is swingably supported by the grain tank 20, and a chute side link 54b that connects the tank side link 54a and the guide chute 50. .

As shown in FIG. 28, the tank side link 54 a on the left side is provided on the rear side of the machine body from the cover part 37 of the rotary support shaft 55 facing forward and backward of the machine body that is rotatably supported by the cover part 37 of the grain tank 20. It is connected to the projecting portion so as not to be relatively rotatable by welding. The right tank side link 54a is connected to a portion of the rotating support shaft 55 that protrudes from the cover portion 37 to the front side of the machine body so as not to be relatively rotatable by welding.
Accordingly, the left tank side link 54a and the right tank side link 54a swing with respect to the grain tank 20 about the axis of the rotation support shaft 55 in the direction along the swing axis Y. The left tank side link 54a and the right tank side link 54a are interlocked and connected by the rotation support shaft 55, and swing by the same swing angle in conjunction with the same swing direction.

[Another Example]
Fig.28 (a) is sectional drawing which shows the grain tank 20 provided with another implementation structure.
In the grain tank 20 having another implementation structure, the left end of the grain outlet 31 in the width direction is located near the left end of the right side wall 26, and the right end of the grain outlet 31 in the width direction is the right side wall 26. It is located near the right edge of. That is, the lateral width of the grain outlet 31 extends over almost the entire width of the right lateral wall 26. The concept that the grain outlet 31 extends over the entire width of the wall also means that the grain outlet 31 extends over the entire width of the wall.

FIG. 28B is a cross-sectional view showing a corner formed by the right lateral wall 26 and the rear wall 24. The contact plate 32 provided at the corner is arranged so as to guide the grain to flow toward the grain outlet 31 so that the grain does not enter and stay in the corner. The corner plate formed by the right lateral wall 26 and the front wall 23 is also provided with a backing plate 32 having the same configuration.

FIG. 29 is a side view showing a combine equipped with another implementation structure. FIG. 28 is a plan view showing a combine having another embodiment structure. As shown in FIGS. 29 and 30, the combine equipped with another embodiment structure is configured such that the grain stored in the grain tank 20 can be carried out by the unloader 110.

As shown to Fig.31 (a), the shape of the bottom part 22 of the grain tank 20 extends over the edge part of the left side wall side of the bottom part 22, and the upper end edge 112a of the recessed part 112 with which the connecting drum part 33 is provided. The opening of the recessed part 112 is made into the grain discharge port 31, and the discharge screw 111 is inserted into the recessed part 112 in a freely rotatable manner. The rotation axis of the discharge screw 111 and the lifting axis X of the grain tank 20 are set to the same axis.

A grain outlet 113 by a discharge screw 111 is provided at the front end of the grain tank 20. A vertical screw conveyor 110a in the vertical direction of the traveling machine that is provided in front of the grain tank 20 in a state where the conveyance start end side is connected to the discharge screw 111 and lifts the grain from the discharge screw 111, and an upper end of the vertical screw conveyor 110a. The unloader 110 is configured to include a horizontal screw conveyor 110b that extends from the section and carries the grain from the vertical screw conveyor 110a. A guide chute 50 is provided, and grain extraction by the guide chute 50 is also possible.

An unloader receiving recess 114 is provided at a corner formed on the front wall 23 and the right side wall 26 of the grain tank 20, and the unloader 110 is inserted into the unloader receiving recess 114 with the vertical screw conveyor 110a of the unloader 110 entering. Has been deployed.

Of the bottom portion 22 of the grain tank 20, the shape of the portion 22a (see FIGS. 1 and 9) located in front of the rear end of the unloader receiving recessed portion 114 is inclined downward. That is, when the grain tank 20 is set to the upward discharge posture and the grain is caused to flow to the discharge screw 111, the grain can be smoothly caused to flow by the inclined shape of the portion 22a.

FIG. 31 (b) is a longitudinal front view showing the grain tank 20 provided with another implementation structure in the combine provided with the unloader 110. In the grain tank 20, an outer wall 115 that closes a space located on the lateral outer side of the right lateral wall 26 is attached in place of the guide chute 50 so as to be used when a grain evacuation space is provided.

FIG. 31 (c) is a longitudinal front view showing the grain tank 20 provided with another implementation structure in the combine provided with the unloader 110. FIG. In the grain tank 20, a right lateral wall 26 is provided on the lateral lateral outer side of the discharge screw 111.

FIG. 32 is a plan view showing a grain tank 20 having another implementation structure.
When the guide chute 50 is in the ascending and retracting posture, the left side plate 52 extends to the rear side of the grain tank 20 as a rear wall as the outer wall 121 of the grain tank 20 as viewed along the pivot axis Y. The front wall as the outer wall surface part 121 of the grain tank 20 is located in a state where it overlaps with the outer side surface part of the part 24a and the side plate part 52 on the right lateral side is in front of the grain tank 20 and viewed in the direction along the swing axis Y. It is located in a state where it overlaps with the outer surface portion of the extending portion 23a.

When the guide chute 50 swings up and down, a gap 122 is generated between the right side plate 52 and the outer wall surface 121 on the front side of the grain tank 20, and on the rear side of the grain tank 20 A gap 122 is generated between the side plate portion 52 on the lateral side and the outer wall surface portion 121. However, each gap 122 is configured to be filled with the gap filling member 123 so that it does not easily spill out from the front gap 122 and the rear gap 122 even if grains remain on the guide chute 50.

That is, the gap filling member 123 is attached to the outer wall surface 121 on the front side and the outer wall surface 121 on the rear side. As shown in FIG. 34, when the left lateral side plate 52 moves from the lateral outer side of the grain tank 20 toward the outer wall surface 121 by the upward swing of the guide chute 50, the rear outer wall surface 121. A gap filling member 123 attached to the side plate 52 is located on the inner surface side of the side plate portion 52 and fills the gap 122 between the left side plate portion 52 and the outer wall surface portion 121. When the right lateral side plate portion 52 moves from the lateral outer side of the grain tank 20 toward the outer wall surface portion 121 by the upward swing of the guide chute 50, the gap filling member 123 attached to the front outer wall surface portion 121. Is located on the inner surface side of the side plate portion 52 and fills the gap 122 between the side plate portion 52 on the right lateral side and the outer wall surface portion 121.

The gap filling member 123 attached to the front and rear outer wall surfaces 121 is made of a rubber material as an example of an elastic member. As shown in FIG. 33, the gap filling members 123 attached to the front and rear outer wall surface parts 121 are respectively housed in the screw housing recessed portions 124 provided at a plurality of positions in the vertical direction of the gap filling member 123. The front wall extending portion 23a and the rear wall extending portion 24a are attached to the front wall extending portion 23a and the rear wall extending portion 24a by connecting screws 125 fastened to the front wall extending portion 23a and the rear wall extending portion 24a.
The gap filling member 123 may be formed of various members having elasticity, such as felt, synthetic resin, and leather, in addition to a rubber material.

FIG. 35 is a side view showing the entire combine equipped with the operation unit 4 having another implementation structure. FIG. 36 is a plan view showing a front portion of a combine provided with a driving unit 4 having another embodiment structure.

In this combine, the lateral outer side of the connecting drum portion 33 in the grain tank 20 is covered with the decorative cover 160.

The decorative cover 160 is supported by the grain tank 20. Specifically, the decorative cover 160 is supported by the mounting structure shown in FIGS.
That is, the decorative cover 160 is made of sheet metal. A connecting portion 161 is provided on the front end side and the rear end side of the decorative cover 160. The connecting portion 161 on the front end side is connected to a bracket 162 provided on the front surface of the connecting drum portion 33 by a connecting bolt 163. The connecting portion 161 on the rear end side is connected to a bracket 162 provided on the rear surface of the connecting drum portion 33 by a connecting bolt 163.

As shown in FIGS. 35 and 36, the driving unit 4 having another implementation structure is provided on the driving cabin 4a covering the living space in the driving unit 4 and the left lateral outer side of the driving cabin 4a, and is mainly used for getting on and off. Step 135 and Step 136 provided on the right lateral outside of the driving cabin 4a are provided.

On the right side wall of the driving cabin 4a, an entrance / exit 137 used to move between the living space and the step 136 and a door 138 for opening / closing the entrance / exit 137 are provided. The door 138 is configured to swing open and close around an opening / closing axis center of the machine body that is provided on the front end side.

A handrail 139 is provided at the rear of step 136 on the right side. The handrail 139 includes a lower lateral portion that extends linearly outward from the connecting portion connected to the handrail support portion provided on the lateral side portion of the step 136, and an extension of the lower lateral portion. A vertical part that extends linearly upward from the projecting end, an inclined part that extends obliquely upward from the upper end of the vertical part, and an upper side of the inclined part. And an upper lateral portion 139a extending linearly inward. The extended end portion of the upper lateral portion 139a is connected to a handrail support portion provided at the rear portion of the operation cabin 4a. The handrail 139 extends in a straight line from the part near the upper end of the vertical part to the front and rear, and extends straight from the rear end of the front and rear arm to the side of the machine. And a mounting arm having a lateral arm portion. The extending end portion of the mounting arm is connected to a handrail support portion provided at the rear portion of the operation cabin 4a.

In this combine, as shown in FIG. 36, an operation unit 140 is provided in a portion of the traveling machine body on the same side where the grain discharge port 31 of the grain tank 20 is provided in a plan view. By 140, the control valve unit 141 provided on the side of the engine 7 is operated to operate the elevating cylinder 35 as an example of the actuator, so that the grain tank 20 is swung. Specifically, as a part of the traveling machine body provided with the operation unit 140, a part on the same side as the part where the grain discharge port 31 of the grain tank 20 is provided in the operation part 4 is set. . More specifically, the part where the operation unit 140 is provided is a part located above the step 136 on the right side.

The operation unit 140 will be described in detail.
As shown in FIG. 37, the operation unit 140 is provided above the step 136 on the right side while being supported by a handrail 139. That is, the operation unit 140 is supported at a mounting height that is easy to operate from step 136 by a simple support structure in which the handrail 139 has a support function.

As a specific mounting structure for supporting the operation unit 140 on the handrail 139, as shown in FIGS. 37 and 38, a plate-like base 142 fixed to the upper lateral portion 139a of the handrail 139, and a base A mounting structure is adopted in which a handrail 139 is provided with a box-like support base 143 detachably connected to the upper surface side of 142 by a connection bolt 148, and the operation part 140 is supported on the top plate part 143 a of the support base 143. . The rear part of the base 142 is connected to the front part of a side cover 144 (see FIG. 35) that covers between the operation cabin 4a and the grain tank 20, and the base 142 supports the side cover 144. Features are provided.

38, the support base 143 is provided with a cover 145 that can be swingably opened and closed. The cover 145 is configured to surround the operation unit 140 so that dust and dirt do not adhere by closing. The cover 145 is supported so as to swing and open up and down around an open / close shaft core 145a located on the rear side of the aircraft. When the cover 145 is closed, the lock claw portion 146 provided on the cover 145 enters the claw hole 147 provided on the top plate portion 143a of the support base 143 and engages with the top plate portion 143a, so that traveling vibration or the like Is kept closed so as not to open. The support base 143 and the cover 145 are produced by molding a resin material.

The operation unit 140 includes a pair of

operation switches

140a and 140b arranged in the longitudinal direction of the machine body. The front operation switch 140a of the pair of

operation switches

140a and 140b is configured to operate the elevating cylinder 35 to the lower side of the grain tank 20 by being pushed. The rear operation switch 140b of the pair of

operation switches

140a and 140b is configured to operate the elevating cylinder 35 to the ascending side of the grain tank 20 by being pushed. The operation switch 140a and the operation switch 140b are configured to drive the elevating cylinder 35 while being pushed and to stop the elevating cylinder 35 when the operation is released.

As shown in FIG. 36, a display unit 150 is provided on the front side of the grain tank 20 to display that the grain tank 20 has been switched to the descending storage posture. When the switching operation is performed, the display unit 150 can easily confirm that the grain tank 20 has been switched to the lowered storage posture.

The display unit 150 will be described.
FIG. 39A is a plan view showing the display unit 150. FIG. 39B is a side view showing the display unit 150. FIG. 39C is a front view showing the display unit 150.
As shown in FIG. 39, the display unit 150 includes a pointer 151 and an index 152 that move relative to each other by swinging the grain tank 20.

The pointer 151 is constituted by an arrow printed on the sheet 153, and is attached to the spindle attaching member 154 connected to the front side of the connecting drum portion 33 in the grain tank 20, thereby supporting the spindle attaching member. 154 is fixed. The support shaft attaching member 154 is connected across the support shaft 41 and the connecting drum portion 33, and attaches the support shaft 41 to the connecting drum portion 33.

The indicator 152 is configured by a plate-like body having a triangular shape in plan view, and includes an attachment portion 155 that extends downward from the front portion of the indicator 152, and the attachment portion 155 is provided above the support frame 156. It is supported by the support frame 156 by being connected to the provided support portion 156a by a connection bolt. The support frame 156 supports the bearing body 42a among the bearing members 42 that support the support shaft 41 of the grain tank 20 so as to be relatively rotatable. The support frame 156 extends upward from the upper frame 45.

Accordingly, the display unit 150 moves the pointer 151 around the lifting axis X with respect to the indicator 152 by swinging the grain tank 20, and the needle tip side of the indicator 151 is moved from the lateral outer side of the indicator 152 to the rear of the indicator 152. When the needle tip portion 151a of the pointer 151 is aligned in the front-rear direction of the fuselage with respect to the rearward tip portion 152a of the indicator 152, it is displayed that the grain tank 20 has been switched to the lowered storage posture.

In carrying out the invention according to claim 1 and the invention according to claim 1 dependent on claim 1, the following structure may be implemented.
(1) In the above-described embodiment, an example is shown in which the upward discharge posture of the grain tank 20 is set to the upward discharge posture to discharge to the right side of the traveling machine body. Alternatively, it may be carried out by setting a rising discharge posture for discharging to the rear side of the traveling machine body.
That is, even if the grain tank 20 is configured to be swingable up and down around the lifting axis center of the traveling machine body provided in the left lateral direction of the traveling machine body, it is provided on the end side in the traveling machine body longitudinal direction. Further, the traveling machine body may be configured to be swingable up and down around the horizontal axis of the lifting machine.

(2) In order to make the grain tank ascending and discharging posture around the vertical axis of the traveling machine body and discharging it to the lateral outer side of the traveling machine body, the vertical axis of the traveling machine body is used as the traveling machine body of the grain tank. In addition to being provided on the end side in the lateral direction, it may be provided on the center side in the lateral direction of the traveling machine body.

(3) In the above-described embodiment, the example in which the lifting / lowering axis X is positioned below the bottom 22 has been shown. However, the lifting / lowering axis X is configured to be positioned at the same position as the bottom 22 or above the bottom 22. May be.

(4) In the above-described embodiment, an example is shown in which the bottom 22 of the grain tank 20 in the descending storage posture and the top 5b are close to each other, but the bottom 22 and the top 5b are configured to be relatively separated from each other. May be.

(5) In the above-described embodiment, an example is shown in which the grain tank 20 is provided over the entire width or almost the entire width of the traveling machine body. However, the grain tank 20 may be implemented with the lateral width narrower than the entire width of the traveling machine body. .

(6) In the above-described embodiment, an example in which the lifting axis X is positioned above the handling cylinder axis P has been shown. However, the elevation axis X is at the same height as the handling axis P or more than the handling axis P. You may comprise and implement so that it may be located below.

(7) In the above-described embodiment, the example in which the lifting shaft X and the rotation shaft of the discharge screw are set to the same shaft has been shown, but the shaft may be set to a different shaft.

In carrying out the invention according to claim 17 and the invention according to claim 17 subordinate to claim 17, the following structure may be implemented.
(1) In the above-described embodiment, an example is shown in which the upward discharge posture of the grain tank 20 is set to the upward discharge posture to discharge to the right side of the traveling machine body. Alternatively, it may be carried out by setting a rising discharge posture for discharging to the rear side of the traveling machine body.
That is, even if the grain tank 20 is configured to be swingable up and down around the lifting axis center of the traveling machine body provided in the left lateral direction of the traveling machine body, it is provided on the end side in the traveling machine body longitudinal direction. Further, the traveling machine body may be configured to be swingable up and down around the horizontal axis of the lifting machine.

(3) In the above-described embodiment, an example in which a mechanical mechanism is used as the linkage mechanism 58 that links the grain tank 20 and the guide chute 50 is shown. It may be implemented by adopting an electrical mechanism linkage mechanism comprising a sensor for detecting the moving position, an actuator for swinging the guide chute 50, and a control means for operating the actuator based on the detection result of the sensor.

(4) In the above-described embodiment, the example in which the linkage mechanism 58 is arranged on the rear side of the grain tank 20 has been shown. However, the linkage mechanism 58 may be arranged and implemented on the front side of the grain tank 20.

(5) In the above-described embodiment, the example in which the guide chute 50 and the grain tank 20 are linked to each other has been shown. However, the linkage chute 50 is not provided, and the guide chute 50 is manually moved to the raised storage posture and the lowered usage posture. You may comprise and implement so that it may switch.

(6) In the above-described embodiment, the example in which the depth of the grain evacuation space K is set to be larger than the rising height 52a of the side plate portion 52 is the same as the rising height 52a of the side plate portion 52, or the side plate. You may implement by setting smaller than the rising height 52a of the part 52. FIG.

(7) In the above-described embodiment, the guide chute 50 is provided with the tilt guide 65. However, the tilt guide 65 may be omitted.

(8) In the above-described embodiment, the example in which the shape of the grain outlet 31 is configured such that the center side has a higher opening height than the both end sides is performed. Also good.

In carrying out the invention according to claim 38 and the invention according to claim 38 subordinate to claim 38, the following structure may be implemented.
(1) In the above-described embodiment, the example in which the inlet 84 of the grain tank 20 is provided in the front wall 23 is shown, but the grain tank 20 may be provided in the rear wall 24.

(2) In the above-described embodiment, an example is shown in which the rising discharge posture of the grain tank 20 is set to the upward discharge posture to discharge to the right side of the traveling machine body. Alternatively, it may be carried out by setting a rising discharge posture for discharging to the rear side of the traveling machine body.
That is, even if the grain tank 20 is configured to be swingable up and down around the lifting axis center of the traveling machine body provided in the left lateral direction of the traveling machine body, it is provided on the end side in the traveling machine body longitudinal direction. Further, the traveling machine body may be configured to be swingable up and down around the horizontal axis of the lifting machine.

(3) In order to arrange the grain tank in a rising discharge posture around the traveling machine body longitudinal axis, and to discharge the lateral side of the traveling machine body, the traveling axis of the grain tank is used as the traveling machine body of the grain tank. In addition to being provided on the end side in the lateral direction, it may be provided on the center side in the lateral direction of the traveling machine body.

(4) When the raising / lowering axis core of the grain tank 20 is set sideways, it is good to provide the inlet of the grain tank 20 in the left side wall or right side wall orthogonal to the raising / lowering axis core.

(5) In the above-described embodiment, the tank side wall member 91 and the cereal side wall member 92 have been illustrated so as not to interfere with each other when the grain tank 20 swings. If at least one of the cereal side wall members 92 is formed of an elastic member such as a rubber plate, the cereal side wall members 92 may be configured to interfere with each other. That is, when the tank side wall member 91 and the cereal side wall member 92 interfere with each other, at least one of the tank side wall member 91 and the cereal side wall member 92 is elastically deformed, and the tank side wall member 91 and the cereal side wall member 92 By allowing relative movement, the grain tank 20 can be swung.

(6) In the above-described embodiment, the example in which the inner tank side wall member 94 and the inner cereal side wall member 95 are configured not to overlap in the direction along the direction of the lifting axis X is shown. You may comprise so that it may overlap in the direction in alignment with the direction of X. That is, if the grain tank 20 tries to swing if it is displaced so that it does not overlap in the direction orthogonal to the lifting axis X even if it overlaps in the direction along the direction of the lifting axis X, The tank side wall member 94 and the inner cereal side wall member 95 do not interfere with each other, so that the grain tank 20 can be swung.

(7) In the above-described embodiment, an example in which a pair of support frames 79 is provided and the position holding unit 80 is provided in each of the pair of support frames 79 has been described. You may implement by providing the position holding part 80 in the support frame 79 located in the outermost side among the some support frames 79. FIG.

(8) In the above-described embodiment, an example in which the lock unit 100 is provided has been described. However, the lock unit 100 may be omitted.

(9) In the above-described embodiment, an example in which the lock unit 100 is provided over the grain tank 20 and the cerealing device 8 has been described. May be implemented.

(10) In the above-described embodiment, the example in which the positioned member 101 is attached to the cerealing device 8 and the positioning member 102 is attached to the grain tank 20 is shown, but the positioned member 101 is attached to the grain tank 20, The positioning member 102 may be attached to the cerealing device 8 for implementation.

In carrying out the invention according to claim 58, the following structure may be implemented.
(1) In the above-described embodiment, an example in which a pair of

operation switches

140a and 140b is provided as the operation unit 140 is shown. However, instead of the operation switches 140a and 140b, an operation lever capable of swinging operation is provided. May be.

(2) In the above-described embodiment, the example in which the operation unit 140 is provided outside the driving cabin 4a is shown, but the operation unit 140 may be provided inside the driving cabin 4a.

(3) In the above-described embodiment, the example in which the operation unit 140 is supported by the handrail 139 has been described. However, the operation unit 140 may be supported by a dedicated support member.

(4) In the above-described embodiment, the needle 151 is provided in the grain tank 20 and the indicator 152 is provided in the support frame 156. However, the pointer 151 is provided in the support frame 156, and the indicator 152 is provided in the grain tank. 20 may be provided.

(5) In the above-described embodiment, an example in which the display unit 150 that performs a predetermined display using the pointer 151 and the index 152 is employed, but a display unit that displays with a buzzer or a lamp may be employed.

(6) In the above-described embodiment, an example in which the display unit 150 is provided has been described. However, the display unit 150 may be omitted.

In carrying out the invention according to

claims

1, 17 and 58 and the invention according to claims dependent on

claims

1, 17 and 58, the following configurations may be implemented.
In the above-described embodiment, the example in which the linkage mechanism 58 is configured to include the left lateral bending link 54 is shown, but the right lateral bending link 54 is configured to replace the left lateral bending link 54. May be implemented.

In carrying out the invention according to

claims

1, 17, 38, 58 and the invention according to claims dependent on

claims

1, 17, 38, 58, the following configurations may be implemented.
(1) In the above-described embodiment, the example in which the upper end portion 130b of the lock member 130 is stretched and supported by the operation portion 34 has been shown. However, the lock member 130 is provided at the end portion of the piston rod 131 and connected to the grain tank 20. It may be configured to be stretched and supported by the boss portion. In short, what is necessary is just to comprise so that it may be supported by the piston rod 131 directly or indirectly.

(2) In the above-described embodiment, an example in which the lock member 130 is configured to prevent the grain tank 20 from descending from the ascending / discharging posture is shown. It is attached to the piston rod 131 of the elevating cylinder 35 in a state where it is raised from the lowered storage posture to a lower raised posture, and is configured to prevent the grain tank 20 that has been raised to a raised posture lower than the raised discharge posture from being lowered. You may implement by employ | adopting a locking member.

(3) In the above-described embodiment, the example in which the locking portion 133 of the lock member 130 is configured to be changed between the engaged state and the disengaged state by the piston rod 131 is shown. The configuration may be implemented so that the state change is performed manually. For example, a retaining pin that is attached to and detached from the lock member 130 by an artificial operation may be adopted as the engaging portion 133.

(1) The present invention can be used for a combine that includes a crawler travel device as well as a combine that includes the front wheel 2 and the rear wheel 3 as travel devices.

(2) The present invention can be used for a self-decomposing combine in addition to a normal combine.

(3) The present invention can be used for a combine for harvesting various cereals such as buckwheat and soybean, as well as a combine for harvesting rice and wheat.

DESCRIPTION OF SYMBOLS 5 Threshing apparatus 5b Top plate 8 Grain raising apparatus 20 Grain tank 22 Bottom part 22a Part 23b Wall surface 26 Grain tank up-and-

down wall

28,29 Connection rod 31 Grain discharge port 32 Cover plate 35 Lifting cylinder (actuator)
37 Cover part 37a Upper end 40 Bearing part 42 Bearing member 43 Support frame 46 Cylinder support part (support frame)
50 guide chute 51 chute body 51a guide surface 51b outlet 52 side plate portion 52a rising height 53 extended guide chute 54 bending link 54a tank side link 54b chute side link 55 rotating support shaft 57 operation cable 57a inner cable 58 linkage mechanism 65 tilting guide 73 Position holding mechanism 79 Support frame 80 Position holding portion 82 Mounting portion 84 Input port 89 Supply port 90 Connection portion 90a Vertex 90b Vertex 91 Tank side wall member 92 Flour side wall member 94 Inner tank side wall member 95 Inner grain side wall member 96 Seal member 100 Locking part 101 Positioned member 103 Positioning action part 104 Guide part 110 Unloader 111 Exit screw 112 Recessed portion 112a Upper end edge 113 Grain delivery outlet 114 Unloader accommodating recessed portion 121 Outer wall surface portion 122 Gap 123 Gap filling member 130 Lock member 131 Piston rod 132 Tube 133 Locking portion 136 Step 139 Handrail 140 Operation portion 145 Cover 150 Display unit 151 Pointer 152 Index 154 Support mounting member 156 Support frame K Grain retreat space L Straight line P Handling shaft axis X Lifting shaft core Y Swing shaft core

Claims

A grain tank for storing the grain from the threshing device is provided so as to be swingable up and down around the lifting shaft core over the descending storage posture and the rising discharge posture,
Among the grain tanks, a grain outlet is provided at the lower end in the raised discharge posture,
The combine which made the shape of the bottom part of the said grain tank into the linear form over the edge part which becomes an upper side in the said raise discharge attitude | position, and the said grain discharge port side.
The grain tank is deployed over the full width or almost the full width of the traveling aircraft,
The combine according to claim 1, wherein the elevating shaft core is located on an end side of the grain tank in the lateral direction of the traveling machine body or in the longitudinal direction of the traveling machine body.
The combine according to claim 1 or 2, wherein the bottom of the grain tank in the descending storage posture is in a horizontal posture.
The combine according to any one of claims 1 to 3, wherein the lifting shaft core is positioned below the bottom.
The combine according to any one of claims 1 to 4, wherein the grain tank is disposed above the threshing device.
The combine according to claim 5, wherein the combine is configured such that the bottom of the grain tank in the descending storage posture and the top plate of the threshing device are close to each other.
The combine according to claim 5 or 6, wherein the elevating shaft core is located above the handling drum shaft core of the threshing device.
The elevating shaft core is located on the end side in the lateral direction of the traveling body of the grain tank,
A support frame that supports a bearing member that supports the grain tank so as to be swingable up and down around the lifting shaft core;
The combine according to any one of claims 1 to 7, wherein the support frame is arranged on a lateral side of the threshing apparatus.
The grain tank is provided with a guide chute supported so as to be swingable up and down around the swing axis center over the lowered use posture and the raised storage posture.
The guide chute is configured to guide the grain flowing out from the grain outlet to the outside of the traveling machine when switched to the lowered use posture, and when switched to the raised storage posture. And configured to follow the vertically facing wall of the grain tank connected to the grain outlet of the grain tank,
A pair of left and right connected to the guide chute and the grain tank side on the left lateral side and the right lateral side of the guide chute to swing the guide chute between the lowered use posture and the raised storage posture A bending and stretching link is provided,
The grain tank includes a rotation support shaft that is rotatably supported around an axis in a direction along the swing axis.
The bending / extending link includes a tank side link supported on one end side of the rotation support shaft so as not to be relatively rotatable, and a chute side link connecting the tank side link and the guide chute,
The combine according to any one of claims 1 to 8, wherein the tank side link on the left side and the tank side link on the right side are connected to the rotating support shaft by welding.
The guide chute is switched to the lowered use posture in conjunction with the swinging of the grain tank to the rising and discharging posture, and the guide chute is linked to swinging of the grain tank to the lowered storage posture. A linkage mechanism that links the grain tank and the guide chute so as to switch to the raised storage posture;
The combine according to claim 9, wherein the left side bending link or the right side bending link is included in the linkage mechanism.
The grain tank is equipped with a discharge screw that discharges the grain from the grain outlet to the outside of the grain tank,
The combine according to any one of claims 1 to 10, wherein the elevating shaft core and the rotating shaft core of the discharge screw are set to the same shaft core.
The end of the grain tank at the side where the grain outlet is located is provided with a recessed portion that communicates with the grain outlet and into which the outlet screw enters.
The combine according to claim 11, wherein the shape of the bottom of the grain tank is in a straight line extending from the upper end in the rising and discharging posture to the upper end edge of the recessed portion.
Provide a grain outlet by the discharge screw at the front end of the grain tank,
An unloader for conveying the grain from the discharge screw is provided on the traveling machine body front side of the grain tank,
The combine according to claim 11 or 12, wherein an unloader receiving recessed portion into which the unloader enters is provided at a corner formed by a front wall and a lateral wall of the grain tank.
The combine according to claim 13, wherein a shape of a portion of the bottom portion of the grain tank located in front of a rear end of the unloader receiving recessed portion is inclined downward.
The combine according to any one of claims 1 to 14, wherein the grain tank is equipped with a connecting rod for connecting the opposing vertical walls.
The combine according to any one of claims 1 to 15, wherein the shape of the front wall of the grain tank is linear in a plan view.
A grain tank for storing the grain from the threshing device is provided so as to be swingable up and down around the lifting shaft core over the descending storage posture and the rising discharge posture,
Among the grain tanks, a grain outlet is provided at the lower end in the raised discharge posture,
The grain tank is provided with a guide chute supported so as to be swingable up and down around the swing axis center over the lowered use posture and the raised storage posture.
The guide chute is configured to guide the grain flowing out from the grain outlet to the outside of the traveling machine when switched to the lowered use posture, and when switched to the raised storage posture. The grain tank is configured to cover a grain tank vertical wall that is connected to the grain outlet of the grain tank, and to form a grain retreat space between the grain tank and the vertical wall. Combine.
The combine according to claim 17, wherein the guide chute includes a chute main body and a side plate that rises from both lateral ends of the chute main body to a side where the guide surface of the chute main body is located.
In the state where the guide chute is in the raised storage posture, the side plate portion is configured to overlap the outer wall surface portion of the grain tank in a direction view along the swing axis,
The combine according to claim 18, further comprising a gap filling member that fills a gap generated between the side plate portion and the outer wall surface portion in a state where the guide chute is in the raised storage posture.
The combine according to claim 19, wherein the gap filling member is an elastic member.
The combine according to claim 19 or 20, wherein the gap filling member is attached to the grain tank.
The combine according to any one of claims 17 to 21, wherein a depth of the grain retreat space is set to be larger than a rising height of the side plate portion.
The combine according to any one of claims 17 to 22, wherein a cover portion covering the upper part of the grain retreat space is provided in the grain tank.
A mounting portion for attaching an extended guide chute to the guide chute,
The extended guide chute attached to the attachment portion is configured to be accommodated below the upper end of the cover portion when the guide chute is switched to the ascending storage posture. Combine.
The guide chute is switched to the lowered use posture in conjunction with the swinging of the grain tank to the rising and discharging posture, and the guide chute is linked to swinging of the grain tank to the lowered storage posture. The combine according to any one of claims 17 to 24, further comprising a linkage mechanism that links the grain tank and the guide chute so as to switch to the raised storage posture.
As soon as the grain tank starts swinging from the descending storage posture to the ascending / discharging posture, the linkage mechanism is configured so that the guide chute starts swinging from the ascending storage posture to the descending use posture. 26. The combine according to claim 25, wherein the grain tank and the guide chute are linked.
After the grain tank starts swinging from the ascending discharge posture toward the descending storage posture and swinging a predetermined amount, the guide chute swings from the descending use posture toward the ascending storage posture. 27. A combine according to claim 25 or 26, wherein the linkage mechanism links the grain tank and the guide chute to start.
The linkage mechanism includes an operation cable for linking the grain tank and the guide chute, and the grain tank is lowered from the ascending discharge posture by generating slack in an inner cable of the operation cables. 28. The apparatus according to claim 27, wherein the guide chute is configured to start swinging from the lowered use posture to the raised storage posture after starting swinging toward the storage posture and swinging a predetermined amount. Combine as described.
A pair of left and right connected to the guide chute and the grain tank side on the left lateral side and the right lateral side of the guide chute to swing the guide chute between the lowered use posture and the raised storage posture A bending and stretching link is provided,
The grain tank includes a rotation support shaft that is rotatably supported around an axis in a direction along the swing axis.
The bending / extending link includes a tank side link supported on one end side of the rotation support shaft so as not to be relatively rotatable, and a chute side link connecting the tank side link and the guide chute,
The combine according to any one of claims 17 to 29, wherein the tank side link on the left side and the tank side link on the right side are connected to the rotating support shaft by welding.
The combine according to any one of claims 25 to 28, wherein the left lateral bending link or the right lateral bending link is provided in the linkage mechanism.
The regulation combine according to any one of claims 17 to 30, wherein the pivot axis of the guide chute is located below the bottom of the grain tank or at the same height as the bottom.
The combine according to any one of claims 17 to 31, wherein the guide surface of the guide chute is provided with an inclined guide for guiding the grain toward the center in the width direction of the exit of the guide chute.
The combine according to claim 32, wherein the inclined guide is supported so that the angle can be freely changed.
The combine according to any one of claims 17 to 33, wherein a patch plate that guides the grain to the grain outlet is attached to an inner corner of the grain tank.
The combine according to any one of claims 17 to 34, wherein the grain discharge port is formed in a lower part of a wall of the grain tank facing upward and downward.
The combine according to any one of claims 17 to 35, wherein the grain outlet is formed over the entire width of the grain tank vertical wall.
The combine according to any one of claims 17 to 36, wherein the grain discharge port is formed in a shape in which a center side has a higher opening height than both end sides.
A grain tank for storing the grain from the threshing device is provided so as to be swingable up and down around the lifting shaft core over the descending storage posture and the rising discharge posture,
An inlet is provided on the wall surface perpendicular to the lifting axis of the grain tank,
A connection part for detachably connecting the supply port of the cerealing device for supplying the grain from the threshing device to the grain tank, and the input port;
The said connection part is the combine comprised by the tank side wall member provided in the said grain tank side, and the cereal side wall member provided in the said cerealing apparatus side.
The combine according to claim 38, wherein the tank side wall member and the cereal side wall member are configured not to interfere with each other when the grain tank swings.
One of the two divided cylinder members formed by dividing the cylinder member in the circumferential direction is provided as the tank side wall member, and the other divided cylinder member of the two divided cylinder members is 40. The combine according to claim 38 or 39, wherein the combiner is provided as a grain side wall member.
The connecting portion is formed so that a cross-sectional shape in a direction view along the direction of the lifting axis is a quadrangle,
Of the connecting portion, the tank sidewall member is set to a portion located on the swinging direction discharge posture side from a straight line connecting a vertex closest to the lifting axis and a vertex farthest from the lifting axis,
The combine according to any one of claims 38 to 40, wherein a portion of the connecting portion that is located on the side of the swinging direction storage posture with respect to the straight line is set to the whipped side wall member.
The combine according to any one of claims 38 to 41, further comprising a lock portion that positions the cerealing device with respect to the grain tank in the descending storage posture in a direction along the lifting axis.
The combine according to claim 42, wherein the lock portion is provided across the grain tank and the cerealing device.
The said lock part is provided with the to-be-positioned member attached to one of the said cerealing apparatus and the said grain tank, and the positioning member attached to the other of the said cerealing apparatus and the said grain tank. The combine according to 43.
The positioning member includes a positioning action portion that positions the positioning member, and a guide portion that guides the positioning member to the positioning action portion as the grain tank swings to the lowered storage posture. 45. A combine according to claim 44.
The combine according to claim 45, wherein the positioning action portion and the guide portion are continuous.
The tank side wall member includes an inner tank side wall member that overlaps with the whipped side wall member on the inner peripheral side of the connection portion when the grain tank is in the descending storage posture.
47. The whipped side wall member further comprises an inner whipped side wall member that overlaps with the tank side wall member on the inner peripheral side of the connecting portion when the grain tank is in the lowered storage posture. A combine according to claim 1.
The combine according to claim 47, wherein the inner tank side wall member and the inner cereal side wall member are configured not to overlap in a direction along the direction of the lifting axis.
The combine according to claim 47 or 48, further comprising a seal member between the inner tank side wall member and the cereal side wall member.
The combine according to any one of claims 38 to 49, wherein the inlet is provided on an upper side of the grain tank.
The combine according to any one of claims 38 to 50, further comprising a display unit that displays that the grain tank has been switched to the descending storage posture.
A support frame that supports the grain tank so as to be swingable around a lifting axis;
52. The display according to claim 51, wherein the display unit includes a pointer provided on one of the support frame and the grain tank, and an indicator provided on the other of the support frame and the grain tank. Combine.
A position holding mechanism for holding the position of the grain tank in the lifting / lowering axis direction is provided on a bearing portion that supports the grain tank so as to swing up and down around the lifting / lowering axis. Combine according to any one of the above.
54. The combine according to claim 53, further comprising a support frame that supports, from below, a portion of the bottom of the grain tank opposite to the side on which the bearing portion is located.
The combine according to claim 54, comprising a plurality of the support frames arranged in a direction along the direction of the lifting axis.
The combine according to claim 55, further comprising a position holding portion that holds a position of the grain tank in the ascending / descending axis direction at an upper portion of the outermost support frame among the plurality of support frames.
The combine according to any one of claims 54 to 56, wherein the support frame is supported by the threshing device.
A grain tank for storing the grain from the threshing device is provided so as to be swingable up and down around the lifting shaft core over the descending storage posture and the rising discharge posture,
Among the grain tanks, a grain outlet is provided at the lower end in the raised discharge posture,
An actuator for swinging the grain tank;
An operation unit for operating the actuator,
The said operation part is a combine provided in the site | part of the same side as which the said grain discharge port was provided in planar view among traveling bodies.
The grain tank is provided behind the driving unit of the traveling machine body,
The elevating shaft core is set to run along the longitudinal direction of the traveling machine body,
The grain outlet is provided on the lateral side of the traveling machine body of the grain tank,
59. The combine according to claim 58, wherein the operation unit is provided in a portion on the same side of the operation unit where the grain outlet is provided in a plan view.
The driving unit includes a driving cabin, and a step provided on the lateral outer side of the driving cabin,
The combine according to claim 59, wherein the operation unit is provided above the step.
A handrail is provided in the step,
The combine according to claim 60, wherein the operation unit is supported by the handrail.
The combine according to any one of claims 58 to 61, further comprising a cover surrounding the operation unit.
The combine according to any one of claims 58 to 62, further comprising a display unit that displays that the grain tank has been switched to the descending storage posture.
A support frame that supports the grain tank so as to swing up and down,
The display unit includes a pointer and an index,
The pointer is provided on one of the support frame and the grain tank,
64. A combine according to claim 63, wherein the indicator is provided on the other of the support frame and the grain tank.
The grain tank is provided with a guide chute supported so as to be swingable up and down around the swing axis center over the lowered use posture and the raised storage posture.
The guide chute is configured to guide the grain flowing out from the grain outlet to the outside of the traveling machine when switched to the lowered use posture, and when switched to the raised storage posture. And configured to follow the vertically facing wall of the grain tank connected to the grain outlet of the grain tank,
A pair of left and right connected to the guide chute and the grain tank side on the left lateral side and the right lateral side of the guide chute to swing the guide chute between the lowered use posture and the raised storage posture A bending and stretching link is provided,
The grain tank includes a rotation support shaft that is rotatably supported around an axis in a direction along the swing axis.
The bending / extending link includes a tank side link supported on one end side of the rotation support shaft so as not to be relatively rotatable, and a chute side link connecting the tank side link and the guide chute,
The combine according to any one of claims 38 to 64, wherein the tank side link on the left side and the tank side link on the right side are connected to the rotating support shaft by welding.
The guide chute is switched to the lowered use posture in conjunction with the swinging of the grain tank to the rising and discharging posture, and the guide chute is linked to swinging of the grain tank to the lowered storage posture. A linkage mechanism that links the grain tank and the guide chute so as to switch to the raised storage posture;
66. The combine according to claim 65, wherein the linkage mechanism includes the left lateral bending link or the right lateral bending link.
An elevating cylinder connected to the grain tank and a cylinder support provided in the traveling machine body and swinging the grain tank over the descending storage attitude and the ascending / discharging attitude is provided.
A lock member is provided that regulates the shortening of the lifting cylinder when the grain tank is lifted and swung.
The lock member is configured to be detachably attached to the piston rod of the elevating cylinder. When the lock member is attached to the piston rod, the lock member acts on the piston rod side with the tube of the elevating cylinder as a reaction point. The combine according to any one of claims 1 to 66, configured as described above.
The cross-sectional shape of the lock member is formed in a U shape so that the piston rod enters the lock member when the lock member is mounted.
A locking portion is provided on the inner peripheral portion of the lock member,
The engaging portion is engaged with the piston rod to prevent the locking member from coming off the piston rod, and the engagement with the piston rod is released to engage the inner peripheral portion of the locking member. 68. The combine according to claim 67, wherein the combiner is configured to be changeable to a disengaged state in which the piston rod can be moved in and out.