JP2015128413A - Combine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a grain tank and an unloader to rotate about a common vertical axis to simplify a support structure of the rotatable grain tank.SOLUTION: In the combine, a grain tank E is configured to change the posture thereof to a working posture where the grain tank is stored and a checking posture where the grain tank overhangs in a lateral direction while being supported to a support frame 50 erecting from a vehicle body frame 10 and positioned on a rear side, an unloader F including a vertical cylinder part 31 with a linear vertical transportation passage reaching a discharge-side end part from an introduction-side end part continuing to a grain discharge port is configured to change the posture thereof to a storage posture and discharge posture, and the grain tank E and the unloader F are supported to the support frame 50 so as to be rotatable about the vertical axis.

Description

  The present invention provides a self-propelled combiner in which a grain tank for storing grain and an unloader for discharging grain are provided in the self-propelled machine body, as an unloader, from an introduction side end connected to the grain outlet of the grain tank. Use a simple type that has a straight vertical conveyance path to the discharge side end, and place the unloader in the retracted position with the discharge side end facing upward and the discharge side end toward the outside. The present invention relates to a combine that is configured so that the posture can be freely switched between a discharging posture and a discharging posture.

  As a combine with a structure using a simple unloader as described above, for example, a columnar member is attached to the rear side of the Glen tank, and the lower end side of the columnar member is pivoted about the vertical axis with respect to the vehicle body frame. And a structure in which the columnar member is supported by another vertical frame fixed on the vehicle body frame so as to be relatively rotatable (see Patent Document 1).

JP 2012-90556 A (refer to paragraphs “0036”, “0037”, “0038” and “FIG. 3,” “FIG. 4,” “FIG. 5,” and “FIG. 6” of the drawings)

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

In the above structure, the columnar member attached to the rear side of the Glen tank is connected to the rear part of the Glen tank on the upper end side, and supports the vicinity of the grain outlet from the Glen tank to the unloader on the lower end side. It is connected.
In other words, the location where the grain transport path from the Glen tank to the unloader exists is constructed with a strong structure to provide a transmission structure between the bottom of the Glen tank and the unloader. If it is supported by the shaped member, it is easy to obtain a structure that supports the whole of the Glen tank by the supporting member without significantly improving the strength of the entire Glen tank. For this reason, there exists a tendency for a support | pillar-like member to be arrange | positioned so that the location close | similar to the grain discharge port from a grain tank to an unloader may be supported as much as possible in the rear part of a grain tank.
As a result, the columnar member is rotatable around the vertical axis with respect to the vehicle body frame while supporting the vicinity of the grain outlet from the grain tank to the unloader and supporting the vicinity of the grain outlet. It is configured as follows. For this reason, the support structure tends to be relatively complicated, such as adopting a structure that bypasses the grain conveyance path from the grain tank to the unloader as the columnar member, and there is room for improvement in this respect. is there.

  The present invention is intended to simplify the support structure of the rotatable Glen tank while rotating the Glen tank and the unloader around a common vertical axis.

The technical means of the combine in the present invention has structural features and operational effects in the following points.
[Solution 1]
The technical means of the present invention taken in order to solve the above-mentioned problem is that a self-propelled aircraft body is provided with a grain tank for storing grain and an unloader for discharging the grain in the grain tank. Are supported by a support frame that is erected from the body frame of the self-propelled aircraft on the rear side of the Glen tank, and are stored in the self-propelled aircraft and laterally outward from the self-propelled aircraft. The unloader is configured in a straight line from the introduction side end connected to the grain discharge port of the Glen tank to the discharge side end formed with the grain discharge port. A vertical cylinder having a vertical conveyance path, and a posture that can be switched between a storage posture in which the discharge side end portion is directed upward and a discharge posture in which the discharge side end portion is directed outward. The grentan The said unloader is that is rotatably supported in vertical axis around on the support frame.

[Operation and effect of invention according to Solution 1]
According to the invention relating to the above solution 1, the Glen tank and the unloader are not supported so as to be rotatable around the vertical axis directly with respect to the vehicle body frame, but are erected from the vehicle body frame of the self-propelled aircraft body. The support frame is supported so as to be rotatable around a vertical axis.
Therefore, when setting the position of the rotational axis between the Glen tank and the unloader, it can be set not at a position on the body frame but at an arbitrary position on the support frame standing from the body frame.
Therefore, the member supporting the Glen tank and the unloader does not require a complicated structure that is supported by the vehicle body frame while bypassing the grain conveyance path from the Glen tank to the unloader, the structure of the support frame itself, There is an advantage that the structure for supporting the Glen tank and the unloader so as to be rotatable around the vertical axis is easy to construct.

[Solution 2]
Another technical means of the present invention taken to solve the above problem is that the Glen tank is supported by the support frame at a plurality of locations in the vertical direction.

[Operation and effect of invention according to Solution 2]
According to the invention relating to the above solution 2, the Glen tank is supported by the support frame at a plurality of locations in the vertical direction, and has an advantage that it can be supported so that it can be stably rotated around the vertical axis.

[Solution 3]
The other technical means of the present invention taken to solve the above-mentioned problem is that, among the support locations to the support frame of the Glen tank, the support location at the lowest position is a mounting portion provided in the support frame. That is, it is supported so as to be rotatable in a mounted state.

[Operation and effect of invention according to Solution 3]
According to the invention relating to the solving means 3 described above, the mounting portion is provided in the support frame, and the mounting portion supports the support location at the lowest position of the Glen tank, so that it is lower than the mounting portion. Regardless of the structure and shape of the space on the side, the support location of the Glen tank can be arranged.
Therefore, there is an advantage that the structure of the support portion of the Glen tank can be simplified without being affected by the structure and shape of the space below the mounting portion.

[Solution 4]
Another technical means of the present invention taken in order to solve the above-mentioned problems is that a mounting frame is provided at the rear part of the Glen tank, and the mounting frame is rotatably supported by the support frame.

[Operations and effects of invention according to Solution 4]
According to the invention relating to the above solution 4, since the Glen tank can be rotatably supported via the mounting frame provided at the rear part of the Glen tank, the Glen tank to which the mounting frame is attached is provided. A common mounting frame can be used regardless of some changes in the shape and capacity of the main body. Therefore, there are advantages that it is easy to reduce the number of parts and simplify the structure by sharing the mounting frame.

[Solution 5]
Another technical means of the present invention taken in order to solve the above-mentioned problem is that the mounting frame is composed of a vertically long member extending from the support position at the lowermost position to the support position at the uppermost position.

[Operation and effect of invention according to Solution 5]
According to the invention relating to the above solution 5, the mounting frame is formed of a vertically long member extending from the support position at the lowermost position to the support position at the uppermost position, so that the mounting frame is positioned from the support position at the lowermost position to the uppermost position. This also functions as a connecting means for connecting the support portions in the case, and has an advantage that the structure can be further simplified and miniaturized.

[Solution 6]
Another technical means of the present invention taken to solve the above problem is that the mounting frame is formed of a columnar body having a circular cross section.

[Operations and Effects of Invention According to Solution 6]
According to the invention relating to the above solution 6, since the mounting frame is formed of a columnar body having a circular cross section, the mounting frame itself is used as a pivot shaft having a swing axis of a Glen tank or an unloader. Can do.
Therefore, there is an advantage that the structure can be easily configured as compared with a structure in which a pivot shaft is provided separately from the mounting frame.

[Solution 7]
Another technical means of the present invention taken in order to solve the above-mentioned problems is that the mounting frame is supported so as to be able to pivot on the upper side with respect to the support frame.

[Operation and effect of invention according to Solution 7]
According to the invention relating to the solving means 7, the upper side of the mounting frame that is rotatable together with the glen tank is supported so as to be rotatable with respect to the support frame, so that the posture of the mounting frame is stabilized. There is an advantage that the Glen tank can be easily rotated while being maintained.

[Solution 8]
Another technical means of the present invention taken to solve the above problems is arranged in a state in which the introduction side end portion connected to the grain outlet of the Glen tank enters below the placement portion of the support frame. It is established.

[Operation and effect of invention according to Solution 8]
According to the invention relating to the solving means 8, the unloader introduction side end connected to the grain discharge port of the Glen tank is arranged so as to enter the lower part of the mounting portion, and thereby the rotation center of the Glen tank or the unloader is The mounting frame can be positioned so as to overlap with the introduction side end of the unloader connected to the grain outlet of the ren tank.
As a result, the attachment frame and the support frame can support a portion as close as possible to the grain outlet for carrying the grain from the grain tank to the unloader. Therefore, there is an advantage that the strength near the grain outlet having high rigidity can be effectively used to support the Glen tank and the unloader with a simple structure without incurring the complexity of the structure.

[Solution 9]
Another technical means of the present invention taken in order to solve the above problem is that the vertical cylinder portion is provided at a rear position of the mounting portion of the support frame.

[Operations and effects of invention according to Solution 9]
According to the invention according to the above solution 9, the mounting portion of the support frame can be disposed between the rear surface side of the Glen tank and the straight vertical cylindrical portion of the unloader, and the mounting frame can also be disposed. There is an advantage that a Glen tank, an unloader, and a structure for supporting the rotation thereof can be arranged in a compact manner while avoiding an increase in the length of the combine in the front-rear direction.

[Solution 10]
Another technical means of the present invention taken in order to solve the above-described problem is that the unloader is configured such that the vertical cylinder portion is rotated around a lateral axis of the introduction side end portion and the posture can be switched. It is that you are.

[Operations and Effects of Invention According to Solution 10]
According to the invention relating to the solution means 10 described above, the posture change operation of the unloader can be performed by rotating the vertical cylinder portion around the lateral axis of the introduction side end portion, and the undulation can be swung with a simple structure. There is an advantage that a simple grain discharge structure can be obtained.

[Solution 11]
Another technical means of the present invention taken in order to solve the above-mentioned problems is that the support frame is provided on the inner side of the machine body from the position where the vertical cylinder portion exists in the left-right direction.

[Operations and Effects of Invention According to Solution 11]
According to the invention relating to the above solution 11, the swing axis of the unloader is positioned as close as possible to the end side in the left-right direction of the airframe, and is positioned far from the airframe for the length of the vertical cylinder portion of the unloader. It is advantageous in that the grains are easily discharged.

[Solution 12]
Another technical means of the present invention taken in order to solve the above-described problems is that a mounting frame is provided at a rear portion of the Glen tank, the mounting frame is rotatably supported by the support frame, and the mounting The frame is provided with a receiving portion that receives and supports the vertical cylinder portion in the retracted posture of the unloader.

[Solution 12: Functions and Effects of the Invention]
According to the invention relating to the solving means 12, since the mounting frame is also used as the mounting means for the receiving portion for receiving and supporting the vertical cylindrical portion in the unloader retracted posture, the structure can be simplified by combining the members. There are advantages.
Further, since the receiving portion is provided on the mounting frame, when the tank is opened, the Glen tank and the unloader can be rotated around the vertical axis while receiving and supporting the vertical cylinder portion. Therefore, it is also useful in that it is possible to omit the trouble of removing the unloader from the receiving portion prior to opening the tank.

[Solution 13]
Another technical means of the present invention taken in order to solve the above problem is that the receiving portion is configured to be capable of adjusting a mounting position with respect to the mounting frame.

[Operations and Effects of Invention According to Solution 13]
According to the invention relating to the solving means 13, since the mounting position of the receiving portion with respect to the mounting frame can be adjusted, the retracted posture of the unloader can be stably maintained.
That is, for example, when the unloader is in the retracted posture, if the vertical cylinder portion is not in contact with the receiving portion, the unloader is maintained in the retracted posture by means for changing the unloader posture or the like. There is a possibility that the posture may become difficult to stabilize, but the mounting position of the receiving portion can be adjusted, so that such an inconvenience can be avoided and the vertical cylindrical portion of the unloader can be stably received and supported. There is.

[Solution 14]
Another technical means of the present invention taken in order to solve the above-described problem is that the vertical cylinder in the retracted posture of the unloader is provided with a swing drive device that swings the vertical tube portion to change the posture. A receiving portion for receiving and supporting the portion is provided in the self-propelled aircraft body, and the receiving portion is configured to be capable of adjusting an attachment position on the self-propelled aircraft body.

[Operations and Effects of Invention According to Solution 14]
According to the invention relating to the solving means 14, there is an advantage that the posture of the vertical cylinder portion of the unloader can be easily changed by using the swing drive device. And since the attachment position of the receiving part with which the self-propelled machine was equipped is adjustable, the storing posture of the unloader can be maintained stably.
In other words, when the unloader is in the retracted position using the swing drive device, the unloader is not in contact with the receiving portion even if the vertical tube portion is swung to the operation limit of the swing drive device. Is maintained by supporting the swing drive device, etc., and the posture may become difficult to stabilize, but the mounting position of the receiving portion can be adjusted. There is an advantage that such a problem can be avoided and the vertical cylindrical portion of the unloader can be brought into contact with the receiving portion and stably received and supported.

[Solution 15]
Another technical means of the present invention taken in order to solve the above-mentioned problem is that the receiving portion is in contact with the vertical cylinder portion and a position adjusting portion that can be fixed by changing the movement of the receiving portion in the left-right direction. Therefore, it is a thing provided with the shock absorbing material which can be volume-elastically deformed.

[Operations and Effects of Invention According to Solution 15]
According to the invention relating to the solving means 15, the position adjusting portion and the cushioning material capable of volume elastic deformation are provided, whereby the shape and size of the inner peripheral side of the receiving portion and the outer periphery of the vertical cylindrical portion Even if the shape or size of the side is slightly different, or the position of the center of curvature on the inner circumference side of the receiving part and the position of the center of curvature on the outer circumference side of the vertical cylinder part are slightly misaligned, etc. There is an advantage that the receiving portion can be provided more stably by absorbing the shape, size, or misalignment.

[Solution 16]
Another technical means of the present invention taken in order to solve the above problem is that a lock mechanism is provided for holding the vertical cylindrical portion received by the receiving portion relative to the receiving portion. .

[Operations and Effects of Invention According to Solution 16]
According to the invention relating to the solution means 16 described above, there is an advantage that the vertical cylinder portion can be locked and reliably held in a state where it is received with respect to the receiving portion.

[Solution 17]
Another technical means of the present invention taken in order to solve the above-mentioned problems is that a horizontal frame for connecting the support frame and a side wall of the threshing device is provided.

[Operations and Effects of Invention According to Solution 17]
According to the invention concerning the above solution 17, there is an advantage that the threshing device can be used for improving the strength of the support frame by connecting and supporting the support frame to the threshing device.

[Solution 18]
Another technical means of the present invention devised in order to solve the above-mentioned problems is provided with a swing drive device that swings the vertical tube portion to change its posture, and one end portion of the swing drive device is provided at the Glen tank. The other end is supported by the vertical tube portion.

[Operations and Effects of Invention According to Solution 18]
According to the invention relating to the above solution 18, there is an advantage that the space between the Glen tank and the vertical cylinder portion of the unloader is used as the space for arranging the swing drive device, and the whole can be easily made compact.

[Solution 19]
Another technical means of the present invention taken to solve the above problem is that a mounting bracket protrudes rearward from the grain tank, and the one end of the swing drive device is connected to the mounting bracket. That is.

[Operation and Effect of Invention According to Solution 19]
According to the invention relating to the solving means 19, since the one end portion of the swing drive device is connected to the mounting bracket projecting rearward from the Glen tank, the swing drive device is as close to the vertical cylinder portion of the unloader as possible. It can be deployed at the location. Therefore, compared to the case where the swing drive device is positioned at a position away from the vertical cylinder portion and the unloading operation of the unloader is performed, the unloader or swing drive device is driven by the driving force generated by the expansion and contraction of the swing drive device relative to the unloader. There is an advantage that a light operation can be easily performed with less risk of twisting deformation.

[Solution 20]
Another technical means of the present invention taken in order to solve the above-described problems is that a mounting frame is provided at a rear portion of the Glen tank, the mounting frame is rotatably supported by the support frame, and the mounting The bracket is connected to the mounting frame.

[Operations and Effects of Invention According to Solution 20]
According to the invention relating to the above solution 20, since the mounting bracket is connected to the mounting frame and reinforced with each other, it is possible to improve the strength of the support location of the Glen tank and the strength of the mounting location of the swing drive device. There is.

[Solution 21]
Another technical means of the present invention taken in order to solve the above-described problem is that the swing drive device is disposed between a mounting frame provided at a rear portion of the Glen tank in the front-rear direction and the vertical cylinder portion. It is that.

[Operation and Effect of Invention According to Solution 21]
According to the invention relating to the solving means 21, the mounting frame is located near the Glen tank and the swing drive device is located near the vertical cylinder portion between the vertical cylinder portion of the unloader and the rear wall of the Glen tank. Exists. As a result, the mounting frame, which is the center of swing when the tank of the Glen tank is opened, supports the Glen tank near the Glen tank, and the swing drive device swings the vertical cylinder portion as close as possible to the vertical cylinder portion to be operated. The operation can be performed.
Therefore, it is advantageous in that the structure for supporting the Glen tank can be reduced in size and weight, and a structure in which the swing drive device can be smoothly operated on the unloader can be obtained.

[Solution 22]
Another technical means of the present invention taken in order to solve the above-mentioned problems is that a work lamp is provided in the Glen tank.

[Operation and Effect of Invention According to Solution 22]
According to the invention relating to the solving means 22 described above, it is possible to illuminate a predetermined portion with the work lamp provided in the Glen tank even when the work is performed by swinging the unloader up and down. Therefore, for example, there is an advantage that the work can be performed without fear that the irradiation direction will change when the unloader swings up and down, such as when a work lamp is provided at the tip of the unloader.

[Solution 23]
Another technical means of the present invention taken in order to solve the above-described problems is that a mounting frame is provided at a rear portion of the Glen tank, the mounting frame is rotatably supported by the support frame, and the mounting The work light is provided at the top of the frame.

[Operation and Effect of Invention According to Solution 23]
According to the invention relating to the solving means 23 described above, it is possible to illuminate a predetermined place with the work lamp provided on the mounting frame even when the work is performed by swinging the unloader up and down. Therefore, for example, there is an advantage that the work can be performed without fear that the irradiation direction will change when the unloader swings up and down, such as when a work lamp is provided at the tip of the unloader.

[Solution 24]
According to another technical means of the present invention taken to solve the above-mentioned problem, the Glen tank is provided with a mounting support portion for mounting and supporting the front end side of the Glen tank with respect to the vehicle body frame, The Glen tank is supported by the self-propelled aircraft by the mounting support portion and the support frame in a working posture in which the Glen tank is stored in the self-propelled aircraft.

[Operation and Effect of Invention According to Solution 24]
According to the invention relating to the above solution 24, since the front end side of the Glen tank is supported by the mounting support portion, compared to the case where the Glen tank is supported only by the support frame and the mounting frame on the swing center side of the Glen tank. Thus, there is no need to increase the support strength of the support frame and the mounting frame more than necessary, which is advantageous in that the whole can be easily reduced in weight.

[Solution 25]
Another technical means of the present invention taken in order to solve the above-mentioned problems is that the grain tank is connected to a cerealing device that lifts and conveys the grain from the threshing device, and the grain tank is in the working posture. When viewed in the front-rear direction in a certain state, a see-through window capable of looking into the inside of the Glen tank is formed on both the side close to and far from the inlet of the cerealing device.

[Operation and Effect of Invention According to Solution 25]
According to the invention relating to the solving means 25 described above, in the Glen tank, compared to a structure in which a see-through window is formed only on one of the side closer to or far from the inlet of the cerealing device. There is an advantage that it becomes easy to grasp the grain storage state in the Glen tank over a wide range with high accuracy.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  As shown in FIGS. 2 to 4 and 8, a deck plate 81 provided on the upper portion of the right side wall of the threshing device D exists above the fuel tank 4, and this deck plate 81 is the fuel tank. 4 and the upper side of the space between the threshing apparatus D and the Glen tank E is covered.

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

In this structure, as shown in FIGS. 12 and 15, the fuel tank 4 is provided with an upward surface 74 </ b> A in a horizontal or substantially horizontal posture as a surface constituting the upper wall of the main body portion 70 and a lower part of the Glen tank E. An outwardly inclined surface 74B along the bottom wall 20A corresponding to the inclined portion of the narrowed portion is formed over substantially the entire length in the front-rear direction. The outwardly inclined surface 74B is set to an inclination angle that is parallel or substantially parallel to the inclination of the bottom wall 20A corresponding to the inclined portion of the lower constriction provided in the lower part of the Glen tank E. The upward surface 74A and the inclined surface 74B are distributed to the left and right across the virtual dividing line TCL1 at the center position in the left-right direction so as to cover the length range of about 1/2 each of the main body portion 70 in the left-right direction. It is formed in a state.
On the upward surface 74A, a fuel filler port 71 is erected in a rearward upward direction at a location near the rear end. Further, as shown in FIGS. 14 and 15, a breather 75 for venting air in the vicinity of the imaginary dividing line TCL2 at the center position in the front-rear direction of the upward surface 74A, as the internal pressure rises in the tank, A fuel return pipe 76 to which surplus fuel from the engine 3 is returned is connected. The breather 75 and the fuel return pipe 76 have an upward surface 74A at a position corresponding to an intermediate position of the upper wall in the left-right direction so that it is close to the center of the area of the fuel tank 4 in a plan view. Is formed.

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

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

As shown in FIGS. 14 and 15, the breather 75, the fuel return pipe 76, and the discharge port 77 are all disposed at positions close to the center of the area of the fuel tank 4 in plan view. There is little possibility that the functions of the breather 75, the fuel return pipe 76, and the discharge port 77 are impaired due to the posture change of the traveling machine body A.
That is, if the breather 75 and the fuel return pipe 76 are provided near the end on the front end side or the rear end side of the fuel tank 4, as shown in FIG. Thus, when the fuel tank 4 is inclined in the front-rear direction, the breather 75 and the fuel return pipe 76 are more likely to be positioned lower than the liquid level FL1 when the liquid level FL1 is high. In comparison, if the breather 75 and the fuel return pipe 76 are disposed at positions close to the center of the area of the fuel tank 4 in plan view, it is advantageous in that it is easy to avoid such a situation. is there.
If the discharge port 77 is provided near the end on the front end side or the rear end side of the fuel tank 4, as shown in FIG. When 4 is inclined in the front-rear direction and the liquid level FL2 is low, the discharge port 77 may be exposed above the liquid level FL2 and fuel oil in the fuel tank 4 may not be discharged. Compared to this, it is advantageous in that the occurrence of such a situation is easily avoided when the fuel tank 4 is disposed at the center of the area of the bottom surface 74D of the fuel tank 4 or in the vicinity thereof.

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

This fuel tank 4 is not a rectangular box shape as shown in FIGS. 4 and 6, but corresponds to a sloping portion of the lower portion provided in the lower part of the Glen tank E as shown in FIGS. The fuel tank 4 has an inclined surface 74B that faces the bottom wall 20A and follows the inclination of the bottom wall 20A. The shape is such that the corner of the portion facing the bottom wall 20A is cut off obliquely.
This inclined surface 74B portion is provided so as to sink under the bottom wall 20A of the Glen tank E, and the upward surface 74A portion includes a lateral side wall D2 on the Glen tank E side in the threshing device D and a threshing device D in the Glen tank E. The refueling port 71 located between the lateral side wall and projecting upward from the upward surface 74A is also a lateral wall D2 on the grain tank E side in the threshing device D and the lateral side on the threshing device D side in the grain tank E. It is provided so as to be located between the side walls (see FIG. 12).
And as for the fuel tank 4, the side wall which opposes the threshing apparatus D side is more than the right end of the 2nd reduction | restoration apparatus 19 attached to the side wall D2 by the side of the grain tank E in the threshing apparatus D, as shown in FIG. In the threshing device D, the threshing device D is disposed near the lateral wall D2 on the side of the grain tank E. Further, the entire fuel tank 4 is located on the rear side of the second reduction device 19 in a range extending from the rear end side of the self-propelled aircraft A to the vicinity of the rear end portion of the second reduction device 19. The fuel tank 4 arranged in this way is arranged so as to overlap with the second reduction device 19 when viewed in the front-rear direction.
As shown in phantom lines in FIG. 12, the outer portion of the fuel tank 4 has a vertical height even when the closest approach distance to the bottom wall 20A of the Glen tank E is the same as that of the rectangular tank fuel tank 4 described above. And the width in the left-right direction is one size larger than that of the rectangular box-shaped fuel tank 4, and the entire volume is increased even if the length in the front-rear direction does not change.

As shown in FIGS. 13 to 15, a transparent gauge tube 78 is provided outside the rear surface 74 </ b> E of the fuel tank 4 to connect the upper part and the bottom part in the fuel tank 4.
Due to the presence of the gauge pipe 78, the remaining amount of fuel in the fuel tank 4 can be visually confirmed from the rear side of the self-propelled aircraft A.
In this embodiment, the virtual dividing line TCL1 at the center position in the left-right direction is set so that the upward surface 74A and the inclined surface 74B extend in the left-right direction approximately in half the length of the main body portion 70. Although the thing of the structure formed in the state distributed on either side on both sides was illustrated, it is not restricted to this. For example, the lateral width of the upward surface 74A is wider than the lateral width of the inclined surface 74B, or conversely, the lateral width of the inclined surface 74B is wider than the lateral width of the upward surface 74A. You may do it.
Further, the position of the breather 75, the fuel return pipe 76, and the discharge port 77 is not limited to the position close to the center of the area of the fuel tank 4 in plan view, and may be disposed at an appropriate position.
Other configurations may be the same as those in the above-described embodiment.

[Second embodiment]
FIG. 16 shows another embodiment of the receiving portion 44 for stably maintaining the retracted posture of the unloader F. FIG.
In this embodiment, a mounting plate 45 having a plate surface inclined so as to be higher toward the right lateral outer side than a plane orthogonal to the vertical axis Y that is the central axis of the mounting frame 40 is fixed by welding. A receiving plate 46 bolted to the mounting plate 45 extends rearward. The receiving plate 46 is provided with an arcuate curved recess 46A that follows the shape of the outer peripheral surface of the vertical cylindrical portion 31 of the unloader F.
The receiving plate 46 is provided with a long hole 46a for connection and as a position adjusting portion at a location where the bolt is connected to the mounting plate 45. The long hole 46a is formed so that the direction along the left and right direction of the body, which is the swinging swinging direction of the unloader F, is longer than the front and rear direction, and the position is adjusted by sliding the receiving plate 46 in the left and right direction relative to the mounting plate 45. It is configured to be possible.
The state shown in FIG. 16 is a state in which the receiving plate 46 is moved to the rightmost outer side with respect to the mounting plate 45, and the receiving plate 46 is moved to the left with respect to the mounting plate 45 within the range where the long hole 46 a is formed. It can be fixed to the side of the aircraft.

  A buffer material 46b made of rubber or a soft synthetic resin material is attached to the receiving plate 46 on the inner peripheral surface side of the arc-shaped curved concave portion 46A. The buffer material 46b is configured to be capable of volumetric elastic deformation by contact with the outer peripheral surface of the vertical cylinder portion 31 of the unloader F. The buffer material 46b can also absorb a slight positional shift between the outer peripheral surface of the vertical cylindrical portion 31 of the unloader F and the receiving plate 46 by elastic deformation of the buffer material 46b. Along with the long hole 46a, it has a function of supporting the vertical cylinder portion 31 of the unloader F at an appropriate position.

The long hole 46a as the position adjusting portion is not limited to the structure provided in the receiving plate 46 as described above, but may be provided in the mounting plate 45, or may be provided in the receiving plate 46 and the mounting plate 45. You may provide in both. In addition, the position adjusting unit is not limited to the long hole 46a, but by providing bolt connection holes at a plurality of locations along the undulating swing direction of the unloader F, and selectively connecting any of the holes, You may comprise so that the position of the receiving plate 46 can be adjusted with respect to the attachment plate 45 in the left-right direction.
Other configurations may be the same as those in the above-described embodiment.

[3 of another embodiment]
FIG. 17 shows another embodiment of the Glen tank E.
In this embodiment, the grain raising device 9 is disposed on the left side (right side in FIG. 17) of the Glen tank E, and the inlet 9A (see FIG. 1) of the grain raising device 9 is connected to the upper left side of the Glen tank E. Yes.
Then, two see-through windows 90a and 90b are formed on the upper portion of the front wall 20f of the Glen tank E at substantially the same height position apart in the left-right direction.
The two see-through windows 90a and 90b are provided so that the inside of the Glen tank E can be looked into. Thus, when two see-through windows 90a and 90b are provided, when the grains supplied from the cerealing device 9 have different accumulation conditions on the side close to the input port 9A and on the side far from the input port 9A In addition, it becomes easier to accurately determine the accumulation state in the Glen tank E by grasping the difference.
Note that the see-through windows 90a and 90b are not limited to two, and three or more see-through windows may be provided so as to be arranged in the left-right direction.
Other configurations may be the same as those in the above-described embodiment.

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

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

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

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

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

[9 of another embodiment]
In the embodiment, the lock mechanism is provided over the unloader F and the mounting frame 40, but the present invention is not limited to this.
For example, a lock mechanism may be provided between the unloader F and a member positioned at a proper position on the self-propelled aircraft A.
Other configurations may be the same as those in the above-described embodiment.

[10 of another embodiment]
In the embodiment, the structure in which the work lamp 49 is attached to the upper portion of the attachment frame 40 is illustrated, but the present invention is not limited to this.
For example, as shown by a virtual line in FIG. 1, it may be provided at the upper part of the rear end side of the Glen tank E.
Other configurations may be the same as those in the above-described embodiment.

[11 of another embodiment]
In the embodiment, a support bracket 53A and an annular support 53B are used as the mounting portion 53, and the lower end portion of the mounting frame 40 protruding downward from the mounting bracket 43 is fitted into the annular support 53B. Although the structure was illustrated, it is not limited to this structure.
For example, a hole portion into which the lower end portion of the mounting frame 40 can be inserted is formed on the upper surface of the support bracket 53A, and a collar portion that contacts the upper surface of the support bracket 53A or a thrust bearing is provided on the mounting frame 40 side. Thus, the mounting frame 40 may be rotatably supported.
Other configurations may be the same as those in the above-described embodiment.

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

DESCRIPTION OF SYMBOLS 9 Graining device 9A Input port 10 Body frame 20B Grain discharge port 26 Mounting support part 31 Vertical cylinder part 31A, 42A, 47 Lock mechanism 36 Grain discharge port 40 Mounting frame 41, 42, 43 Mounting bracket 44 Receiving part 46a Position adjustment part 46b Buffer material 49 Work lamp 50 Support frame 53 Placement part 60 Swing drive device 90a, 90b See-through window A Self-propelled machine body D Threshing device E Glen tank F Unloader R Vertical conveyance path X Swing axis Y Vertical axis heart

Claims (25)

A Glen tank for storing grains,
An unloader for discharging the grain in the Glen tank is provided in the self-propelled aircraft,
The Glen tank is supported by a support frame erected from the body frame of the self-propelled aircraft on the rear side of the Glen tank, and the working posture stored in the self-propelled aircraft and the self-propelled aircraft The inspection posture that projects laterally outward is configured so that the posture can be switched,
The unloader includes a vertical tube portion having a straight vertical conveyance path from an introduction side end portion connected to a grain discharge port of the Glen tank to a discharge side end portion where a grain discharge port is formed. And a posture that can be switched between a storage posture in which the discharge side end portion is directed upward and a discharge posture in which the discharge side end portion is directed outward.
The grain tank and the unloader are combined with the support frame so as to be rotatable about a vertical axis.   The combine according to claim 1, wherein the Glen tank is supported by the support frame at a plurality of locations in the vertical direction.   The support part in the lowest position among the support parts to the said support frame of the said Glen tank is rotatably supported in the state mounted in the mounting part with which the said support frame was equipped. Combine.   The combine according to claim 3, wherein a mounting frame is provided at a rear portion of the Glen tank, and the mounting frame is rotatably supported by the support frame.   The combiner according to claim 4, wherein the mounting frame is composed of a vertically long member that extends from a support location at the lowest position to a support location at the highest position.   The combine according to any one of claims 4 and 5, wherein the mounting frame is configured by a columnar body having a circular cross section.   The combiner according to any one of claims 4 to 6, wherein an upper side of the mounting frame is supported so as to be rotatable with respect to the support frame.   The combine as described in any one of Claims 3-7 arrange | positioned in the state which the said introduction side edge part connected with the grain discharge port of the said Glen tank enters under the said mounting part of the said support frame.   The combine as described in any one of Claims 3-8 with which the said vertical cylinder part is provided in the back position of the said mounting part of the said support frame.   The combiner according to claim 9, wherein the unloader is configured to be switchable in posture by rotating the vertical cylinder portion around a lateral axis of the introduction side end portion.   The combine according to any one of claims 1 to 10, wherein the support frame is provided on the inward side of the machine body from a portion where the vertical cylinder portion is present in the left-right direction.   A mounting frame is provided at the rear of the Glen tank, the mounting frame is rotatably supported by the support frame, and a receiver that receives and supports the vertical cylinder portion in the unloader retracted posture on the mounting frame. The combine as described in any one of Claims 9-11 with which the part is provided.   The combine according to claim 12, wherein the receiving portion is configured to be capable of adjusting a mounting position with respect to the mounting frame.   The self-propelled machine body includes a swing drive device that swings the vertical cylindrical portion to change the posture, and a receiving portion that receives and supports the vertical cylindrical portion in the retracted posture of the unloader. The combiner according to any one of claims 1 to 11, wherein the unit is configured to be capable of adjusting an attachment position on the self-propelled aircraft.   The said receiving part is provided with a position adjusting part that can be fixed by changing the lateral movement of the receiving part, and a cushioning material that can be elastically deformed by volume contact with the vertical cylinder part. The combine according to 13 or 14.   The combine as described in any one of Claims 12-15 provided with the lock mechanism in which the said vertical cylinder part received by the said receiving part hold | maintains a position with respect to the said receiving part. Combine as described.   The combine as described in any one of Claims 1-16 provided with the horizontal frame which connects the said support frame and the side wall of a threshing apparatus.   A swing drive device that swings the vertical cylinder portion to change the posture is provided, one end of the swing drive device is supported by a part of the Glen tank, and the other end is supported by the vertical tube portion. The combine according to any one of claims 1 to 17.   The combine according to claim 18, wherein a mounting bracket protrudes rearward from the Glen tank, and the one end of the swing drive device is connected to the mounting bracket.   The combine according to claim 19, wherein a mounting frame is provided at a rear portion of the Glen tank, the mounting frame is rotatably supported by the support frame, and the mounting bracket is coupled to the mounting frame.   21. The combine according to any one of claims 18 to 20, wherein the swing driving device is disposed between a mounting frame provided at a rear portion of the Glen tank and the vertical cylinder portion in the front-rear direction.   The combine according to any one of claims 1 to 21, wherein a work lamp is provided in the Glen tank.   The mounting frame is provided at a rear portion of the Glen tank, the mounting frame is rotatably supported by the support frame, and a work lamp is provided above the mounting frame. A combine according to claim 1.   The Glen tank is provided with a mounting support portion for mounting and supporting the front end side of the Glen tank with respect to the vehicle body frame, and the Glen tank is installed in the working posture stored in the self-propelled machine body. The combine according to any one of claims 1 to 23, wherein the Glen tank is supported by the self-propelled machine body by a support portion and the support frame.   The grain tank is connected to a cerealing device that lifts and conveys the grain from the threshing device, and is close to the inlet of the cerealing device in the front-rear direction when the grain tank is in the working posture. The combiner according to any one of claims 1 to 24, wherein a see-through window capable of looking into the inside of the Glen tank is formed on both the side and the far side.

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