JP2023094885A - harvester - Google Patents

Abstract

To provide a harvester capable of reducing the labor of an operator to operate a storage part into an open state, even when crops are stored in the storage part, in the harvester.SOLUTION: A harvester comprises a storage part 6 which is supported by a machine frame 12 so that the storage part can be changed in a state, between a closed state A1 where the storage part is provided above a machine frame 12 and harvested crops can be stored in the storage part, and an open state where the storage part is protruded outward in a lateral side from the machine frame 12, around a first shaft core along a vertical direction on the machine frame 12. The harvester further comprises: a support part 37 which is provided on lower parts 6a, 6b of the storage part 6; and a guide part 36 which supports the storage part 6 by mounting the support part 37 thereon, and can guide the support part 37 from the closed state A1 to the open state side; and a lifting mechanism 45 which lifts up the support part 37 from the guide part 36.SELECTED DRAWING: Figure 10

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a configuration of a storage section capable of storing harvested crops in a harvester for harvesting crops in a field.

As disclosed in Patent Literature 1, a common combine harvester, which is an example of a harvester, is provided with a storage section capable of storing harvested crops. The storage part is supported on the body frame so that the state can be changed around the axis along the vertical direction at the rear part of the storage part. It is operable between open and closed states. By opening the storage section, the operator can perform maintenance work near the storage section.

In Patent Literature 1, the support portion is provided at the lower front portion of the storage portion, and the guide portion is provided on the body frame. By placing the support portion on the guide portion, the front portion of the storage portion is supported by the guide portion, and the support portion is guided from the closed state toward the open state side.

Japanese Unexamined Patent Application Publication No. 2013-21962

Because of the weight of the reservoir when the reservoir is filled with crop, the reservoir should be empty with no crop stored when the reservoir is operated to the open position. preferable. In recent years, there has been an increasing demand for operating the reservoir in an open state even when the reservoir is filled with crops.

SUMMARY OF THE INVENTION An object of the present invention is to provide a harvester that reduces labor required for an operator to open a storage section even when crops are stored in the storage section.

The harvester of the present invention comprises a body frame, a closed state in which harvested crops can be stored on the body frame, and an open state in which the harvested crops can be stored. A reservoir supported by the body frame so that the state can be changed around a first axis along the vertical direction, a support provided at the bottom of the reservoir, and the support by placing the A guide part that supports the storage part and can guide the support part from the closed state toward the open state side is provided, and a lifting mechanism that can lift the support part from the guide part is provided. .

When the storage part is supported by the guide part by the support part, and the storage part is operated to the closed state, if the crops are stored in the storage part, the loading pressure of the support part becomes large, so that the work becomes difficult. It takes a lot of effort for the operator to open the reservoir.
According to the present invention, the lifting mechanism lifts the support portion, thereby reducing the mounting pressure of the support portion. Since the labor required to open the storage portion is reduced, the operability of opening the storage portion is improved.

In the present invention, when the storage portion is operated to the closed state, the guide portion is provided with an entry portion into which the support portion descends and the support portion is lifted from the entry portion by the lifting mechanism. It is preferred to be manipulated.

According to the present invention, when the storage portion is operated to the closed state, the support portion descends and enters the entering portion of the guide portion. Penetration improves the stability of holding the reservoir in the closed state.

According to the present invention, the supporting portion is lifted from the entering portion of the guide portion by the lifting mechanism so that the supporting portion can escape from the entering portion of the guide portion, so that the mounting pressure of the supporting portion is reduced. In addition, since the insertion of the guide portion into the insertion portion of the support portion is eliminated, the operator's effort to open the storage portion is reduced.

In the present invention, it is preferable that the support section is a support roller that can roll along the guide section.

According to the present invention, since the support portion is a support roller, the support roller rolls on the guide portion when the storage portion is operated to the open state, thereby reducing the labor required for the operator to open the storage portion. be done.
In this case, when the support roller is lifted by the lifting mechanism, the mounting pressure of the support roller is reduced, so that the operator's effort to open the storage section is reduced.

In the present invention, the lifting mechanism is capable of swinging about a second axis along a radial direction with respect to the first axis to one side and the other side with respect to a vertical line passing through the second axis, a lifting arm extending downward from the second axis; a lifting roller provided at a lower portion of the lifting arm and capable of rolling along the guide portion; to the other side with respect to the vertical line, the support portion can be lifted via the lifting arm and the lifting roller, and an operation arm that is manually operated and the support portion is lifted. Then, it is preferable that a stopper portion is provided to stop swinging of the lifting arm to the other side.

According to the present invention, in the lifting mechanism, when the operator operates the operating arm to operate the lifting arm toward the other side, the lifting roller rolls on the guide portion while the supporting portion moves through the lifting arm and the lifting roller. is lifted and operated.
When the lifting arm and the lifting roller cross the vertical line passing through the second axis to the other side, the lifting arm tries to swing further toward the other side due to the weight of the storage part, but the lifting arm does not move to the other side. Since the rocking motion is stopped by the stopper portion, the support portion is maintained in a lifted state.

As a result, when the storage section is opened, the lifting roller rolls on the guide section, thereby reducing the operator's effort to open the storage section.
When the support portion is placed on the guide portion due to the displacement of each part of the storage portion, the storage portion is operated toward the open state by placing the support portion and the lifting roller on the guide portion. It is stably supported by the guide section, and the lifting mechanism maintains the support section in a state of being lifted and the mounting pressure of the support section is reduced, so that the operator operates the storage section to the open state. labor is reduced.

In the present invention, it is preferable that an extension arm is provided that is detachable from the operation arm and that can extend the length of the operation arm by being attached to the operation arm.

According to the present invention, when the operator operates the operating arm, the extension arm may be attached to the operating arm to extend the length of the operating arm. As a result, even when crops are stored in the storage section, the operator can operate the operation arm (extension arm) to easily operate the lifting arm toward one side and the other side.

In the present invention, a support frame is provided below the storage section along a direction orthogonal to a radial direction with respect to the first axis, and in a plan view, the support section is positioned relative to the support frame along the first axis. It is preferable that the lift mechanism is provided on one of the side near the center and the side far from the core, and the lifting mechanism is provided on the other of the side near the first axis and the side far from the support frame.

According to the present invention, when the supporting part and the lifting mechanism are provided in the storage part, the supporting part and the lifting mechanism are arranged on opposite sides of each other with the support frame interposed therebetween, and the supporting part and the lifting mechanism are arranged without interfering with each other. This is advantageous in terms of structural simplification.

In the present invention, a crop discharge mechanism capable of discharging crops in the storage part is provided at the bottom of the storage part along the radial direction with respect to the first axis, and when viewed from the radial direction with respect to the first axis, It is preferable that the support portion is provided on one side in the horizontal direction with respect to the crop discharging mechanism, and the lifting mechanism is provided on the other side in the horizontal direction with respect to the crop discharging mechanism.

In a harvester, a crop ejection mechanism may be provided at the bottom of the reservoir by which the crop in the reservoir can be ejected.
According to the present invention, the support part and the lifting mechanism are arranged on one side and the other side of the crop discharge mechanism in the horizontal direction, and are arranged away from each other so that the support part and the lifting mechanism do not interfere with each other. Therefore, it is advantageous in terms of structural simplification.

In the present invention, the lower part of the storage part is formed in a downward tapering shape, the width of which becomes narrower toward the crop discharging mechanism when viewed from the radial direction with respect to the first axis, and the raising mechanism is configured to: It is preferable that it is provided in a lower region with respect to the lower portion of the reservoir.

When the crop discharge mechanism capable of discharging the crops in the storage part is provided at the bottom of the storage part, the lower part of the storage part is formed in a downward tapered shape in which the width becomes narrower toward the crop discharge mechanism. There may be a space in the lower area relative to the bottom of the reservoir.
According to the present invention, since the lifting mechanism is provided in the region below the lower portion of the reservoir, the region below the lower portion of the reservoir can be effectively used.

In the present invention, when viewed from the radial direction with respect to the first axis, the support portion is provided on the inner side of the body frame with respect to the crop discharge mechanism, and the lifting mechanism is provided with respect to the crop discharge mechanism. It is suitable if it is provided on the laterally outward side of the body frame.

According to the present invention, since the lifting mechanism is provided on the laterally outward side of the machine body frame with respect to the crop discharge mechanism, the lifting mechanism is close to the worker standing on the ground, and the worker standing on the ground can easily use the lifting mechanism. It can be operated, and the operability of the lifting mechanism is improved.

In the present invention, an intermediate state located at an end of the body frame is set between the closed state and the open state, and the guide section moves the support section between the closed state and the intermediate state. a blocking position for stopping the storage portion in the intermediate state when the storage portion is operated from the closed state toward the open state; and the opening of the storage portion in the intermediate state. Preferably, there is a stop mechanism operable to the state and to the permissive position allowing movement to said closed state.

According to the present invention, when the support portion is placed on the guide portion after the support portion is lifted by the lifting mechanism, when the storage portion (support portion) is operated from the closed state toward the open state side, the stored The portion (supporting portion) is supported by the guide portion between the closed state and the intermediate state, and when it moves beyond the intermediate state to the open state side, the guide portion no longer supports the storage portion (supporting portion).

According to the present invention, when the storage portion (support portion) reaches the intermediate state when the storage portion (support portion) is operated from the closed state toward the open state side, the storage portion (support portion) is stopped by the stop mechanism at the blocking position. ) stops in an intermediate state.
This makes it easier for the operator to perform maintenance work that can be performed without operating the storage section to the open state, thereby improving workability.

According to the present invention, when the reservoir (support) is operated from the intermediate state to the open state, the operator operates the stop mechanism to the allowable position so that the reservoir (support) passes through the intermediate state. Therefore, the storage portion (support portion) can be operated from the intermediate state toward the open state side.
As a result, the operator's act of operating the stop mechanism to the allowable position alerts the operator that the guide part no longer supports the storage part (support part).

In the present invention, an urging mechanism for urging the stop mechanism to the blocking position is provided, and when the storage section is operated from the open state toward the intermediate state, the storage section moves to the blocking position. By contacting the stopping mechanism, the stopping mechanism is operated to the allowing position against the biasing mechanism, and when the reservoir passes through the intermediate state, the stopping mechanism is moved to the blocking position by the biasing mechanism. It is preferable to operate at

According to the present invention, when the reservoir (support) is operated from the open state toward the closed state, when the reservoir (support) reaches the intermediate state, the reservoir contacts the stop mechanism in the blocking position. The stop mechanism is then operated to the allowable position against the biasing mechanism so that the reservoir (support) can pass through the intermediate state.

As a result, when the storage portion (support portion) is operated from the open state toward the closed state side, the operator does not have to operate the stop mechanism from the blocking position to the permitting position, thereby improving workability.
When the storage portion (support portion) passes through the intermediate state, the stopping mechanism is automatically operated to the blocking position by the biasing mechanism, so the operator does not have to operate the stopping mechanism from the allowable position to the blocking position. , workability is improved.

In the present invention, it is preferable that an intermediate state holding mechanism capable of holding and releasing the storage portion in the intermediate state is provided.

According to the present invention, when the storage section (supporting section) is operated to the intermediate state, the storage section is held in the intermediate state by the intermediate state holding mechanism. This makes it easier for the operator to perform maintenance work, which improves workability.

It is a right view of a combine. It is a top view of a combine. It is a right side view near the front part of an engine and a grain tank. It is a top view near the front part of an operation|movement part and a grain tank. It is a cross-sectional plan view of the vicinity of the bonnet cover. FIG. 4 is a front view of the front part of the grain tank; FIG. 4 is a cross-sectional plan view of the vicinity of the guide section, support rollers, lifting mechanism, stopping mechanism, and intermediate state holding mechanism; 3 is an exploded perspective view of the vicinity of a guide section, support rollers, a lifting mechanism, a stopping mechanism, and an intermediate state holding mechanism; FIG. FIG. 4 is a longitudinal rear view of the vicinity of the front portion of the grain tank in the closed state; FIG. 10 is a vertical cross-sectional rear view of the vicinity of the front portion of the grain tank showing a state in which the support roller has been lifted by the lifting mechanism from the state shown in FIG. 9 ; FIG. 11 is a longitudinal rear view of the vicinity of the front portion of the grain tank showing a state in which the grain tank is operated from the state shown in FIG. 10 to an intermediate state; FIG. 12 is a vertical cross-sectional rear view of the vicinity of the front portion of the grain tank showing a state in which the grain tank is opened from the state shown in FIG. 11 ; It is a top view of a body frame.

1 to 13 show a normal type combine as an example of a harvester, where F indicates the forward direction, B indicates the rearward direction, U indicates the upward direction, and D indicates the downward direction. , R indicates the right direction and L indicates the left direction.

(Overall configuration of combine harvester)
As shown in FIGS. 1 and 2, a machine body 1 is supported by a crawler-type traveling device 2, and a reaping section 3 and a driving section 4 are provided at the front of the machine body 1. As shown in FIGS. A threshing device 5 is provided on the left side of the machine body 1, a grain tank 6 as a storage part is provided on the right side of the machine body 1, and a crop discharging device 7 is connected to the lower rear portion of the grain tank 6. .

A conveying device 8 is supported by the front portion of the threshing device 5 and extends forward from the threshing device 5 so as to be vertically swingable about an axis extending in the left-right direction. The harvesting unit 3 is connected to the front portion of the conveying device 8 to harvest the crops in the field. An elevating cylinder (not shown) is connected across the body 1 and the conveying device 8, and the reaping unit 3 and the conveying device 8 are operated up and down by the elevating cylinder.

With the above configuration, as the machine body 1 advances, the crops in the field are introduced into the reaping unit 3 and harvested. The crops are threshed by the threshing device 5 , and the crops threshed and collected by the threshing device 5 are stored in the grain tank 6 . When the grain tank 6 is full, the crop in the grain tank 6 is discharged by the discharging device 7.

(Configuration related to jacking up the aircraft)
As shown in FIG. 13 , a plurality of square pipe members are connected in a frame shape to form a body frame 12 , and the body frame 12 constitutes the skeleton of the body 1 . When performing maintenance work on the travel device 2 and the like, the body frame 12 is jacked up.

Jack action parts D1, D2, D3 to which jacks (not shown) are applied are located between the left and right central parts of the front part of the machine body frame 12 (between the driving part 4 and the front part of the threshing device 5 in plan view) and the machine body. They are provided at three locations: the right portion of the rear portion of the frame 12 (the portion behind the rear end portion of the right travel device 2 ) and the left portion of the rear portion of the body frame 12 .

Since the rear left portion of the body frame 12 is located forward of the rear end portion of the left travel device 2, the jack-up frame 64 can move along the front-rear direction. is provided in As indicated by the two-dot chain line in FIG. 13, the jack-up frame 64 is moved to the rear side of the rear end portion of the left travel device 2, and the jack-up frame 64 is used as the jack action portion D3.

(Configuration of grain tank)
As shown in FIGS. 1, 2, and 3, the grain tank 6 is configured in a box shape by connecting a plurality of plate members, and the crops threshed and collected by the threshing device 5 are placed in the left side of the grain tank 6. It is put into the grain tank 6 from the upper part of the lateral surface of the grain tank 6 and stored in the grain tank 6 .

As shown in FIGS. 3 and 6, a bottom screw 9 (corresponding to a crop discharging device) is provided at the bottom of the grain tank 6 along the front-rear direction, and is a shaft described in (Construction of the discharging device) described later. It is provided at the bottom of the grain tank 6 along the radial direction with respect to the core P1 (corresponding to the first axis). A diaphragm 10 is provided at the bottom of the grain tank 6 so as to be positioned above the bottom screw 9 along the front-rear direction (radial direction with respect to the axis P1 (first axis)).

The lower portions 6a and 6b of the grain tank 6 are formed in a tapered shape in which the width becomes narrower toward the bottom screw 9 when viewed from the front-rear direction (radial direction with respect to the axis P1 (first axis)). ing. A lower cover 11 made of synthetic resin is detachably attached to the grain tank 6 , and the lower portion 6 a of the grain tank 6 is covered with the lower cover 11 .

A flat support frame 14 is connected to the front portions of the lower portions 6a and 6b of the grain tank 6 along the left-right direction (direction orthogonal to the radial direction with respect to the axis P1 (first axis)). A gear case 15 is connected to the support frame 14 and an output shaft (not shown) of the gear case 15 is connected to the front portion of the bottom screw 9 .

An arm 10 a connected to the diaphragm 10 is arranged on the front side with respect to the support frame 14 , and an eccentric cam (not shown) attached to the output shaft of the gear case 15 engages the arm 10 a of the diaphragm 10 . are linked.

(Configuration of discharge device)
As shown in FIGS. 1 and 2, the discharging device 7 is provided with a vertical conveying section 7a containing a conveying screw (not shown) and a horizontal conveying section 7b containing a conveying screw (not shown). A discharge port 7c is provided at the end of the horizontal conveying portion 7b.

A vertical conveying portion 7 a of the discharge device 7 is supported by the body frame 12 so as to be rotatable about an axis P<b>1 along the vertical direction at the rear right portion of the body frame 12 . The horizontal conveying portion 7b of the discharging device 7 is supported above the vertical conveying portion 7a of the discharging device 7 so as to be vertically swingable.

By rotating the vertical conveying portion 7a of the discharging device 7 around the axis P1, the turning operation of the discharging device 7 (the vertical conveying portion 7a and the horizontal conveying portion 7d) is performed, and the discharge port 7c of the discharging device 7 is rotated. position is changed horizontally. By vertically swinging the horizontal conveying portion 7b of the discharge device 7, the position of the discharge port 7c of the discharge device 7 is changed in the vertical direction.

The lower portion of the conveying screw of the vertical conveying portion 7a of the discharging device 7 is connected to the rear portion of the bottom screw 9 via a bevel gear mechanism (not shown). The upper portion of the conveying screw of the vertical conveying portion 7a of the discharging device 7 and the conveying screw of the horizontal conveying portion 7b of the discharging device 7 are connected via a bevel gear mechanism (not shown).

(Structure of bottom screw and diaphragm of grain tank, drive of discharge device)
As shown in FIGS. 3 to 6, the engine 13 is provided on the front right portion of the body frame 12, and the output pulley 13a is provided on the right side of the engine 13. As shown in FIGS. An input pulley 15 a is provided on the right side of the gear case 15 , and a transmission belt 21 is attached across the output pulley 13 a of the engine 13 and the input pulley 15 a of the gear case 15 .

A discharge clutch 22 is provided for the transmission belt 21 . The exhaust clutch 22 is provided with an arm 22a supported by a frame 16a at the rear of the bonnet 16 and a pulley 22b provided at the end of the arm 22a so as to be vertically swingable about an axis P3 extending in the left-right direction. It is

By operating the arm 22a of the discharge clutch 22 upward, the transmission belt 21 is tensioned, and the power of the output pulley 13a of the engine 13 is transmitted to the input pulley 15a of the gear case 15 via the transmission belt 21. (transmission state of the discharge clutch 22). When the arm 22a of the discharge clutch 22 is operated downward, the transmission belt 21 is loosened, and power transmission to the input pulley 15a of the gear case 15 is interrupted (disconnected state of the discharge clutch 22).

As shown in FIGS. 1 to 4, the operating section 4 includes a bonnet 16 housing an engine 13, a front operating section 17 provided in front of the bonnet 16, a left portion of the bonnet 16 and a left portion of the front operating section 17. A lateral control section 18 provided over the entire length of the vehicle, a driver's seat 19 provided on the bonnet 16, a roof section 20 covering above these, and the like are provided.

As shown in FIGS. 3 and 4 , in the driving section 4 , an operation box 23 is provided at a position obliquely to the left rear of the driver's seat 19 and behind the lateral control section 18 . is provided in the operation box 23 , and a wire 26 is connected across the exhaust clutch lever 24 and the arm 22 a of the exhaust clutch 22 . An operator at the driver's seat 19 operates the discharge clutch lever 24 to swing the arm 22a of the discharge clutch 22 up and down, thereby operating the discharge clutch 22 in the transmission state and the disconnection state.

When the discharge clutch 22 is operated to the transmission state, the power transmitted to the input pulley 15a of the gear case 15 is transmitted through the bevel gear mechanism (not shown) inside the gear case 15 and the output shaft to the bottom screw 9 and the discharge device. 7 are transmitted to the conveying screw of the vertical conveying portion 7a and the conveying screw of the horizontal conveying portion 7b, and these are rotationally driven. Due to the eccentric cam of the output shaft of the gear case 15 and the arm 10a of the diaphragm 10, the diaphragm 10 is reciprocatingly driven to oscillate left and right.

The crop in the grain tank 6 is discharged from the grain tank 6 to the discharging device 7 by the bottom screw 9 while the occurrence of the crop bridging phenomenon is suppressed by the vibration plate 10, and the vertical conveying portion 7a and the horizontal conveying portion of the discharging device 7 are discharged. 7 b and discharged from the discharge port 7 c of the discharge device 7 .

(Summary of Grentank status change)
As shown in FIGS. 1 and 2, the rear portion of the grain tank 6 is supported by the body frame 12 via the vertical conveying portion 7a of the discharging device 7 so as to be swingable (changeable state) around the axis P1. there is

The state indicated by solid lines in FIGS. 1 and 2 is a closed state A1 in which the grain tank 6 is positioned on the body frame 12 and can store harvested crops. The state indicated by the two-dot chain line in FIG. 2 is the open state A3 in which the grain tank 6 is operated to the right laterally outward around the axis P1 and protrudes from the body frame 12 to the right laterally outward.

When the operator operates the grain tank 6 from the closed state A1 to the open state A3, the operator stops the engine 13, operates the discharge clutch 22 to the disconnected state, and moves the transmission belt 21 to the input pulley 15a of the gear case 15. must be removed from

(bonnet configuration)
As shown in FIGS. 3, 4 and 5, a bonnet cover 27 is provided to cover the right side laterally outward of the bonnet 16 . A radiator 28 , a cooling fan 29 , a fan shroud 30 , and the like are provided on the right side of the bonnet 16 , and a bonnet cover 27 covers the laterally outward sides of these on the right side.

The bonnet cover 27 is formed in a box shape by a sheet metal member, and is supported by the right front frame 16b of the bonnet 16 so as to be able to swing about an axis P4 extending in the vertical direction. A dustproof member 27b having air permeability is provided on the lateral surface of the bonnet cover 27, a rubber sealing member 27c is provided on the outer periphery of the bonnet cover 27, and an auxiliary handle 27d for getting on and off is provided on the front portion of the bonnet cover 27. is provided in

Buckle-shaped fixing members 31 and 32 capable of fixing and releasing the bonnet cover 27 at the closed position are provided on the right rear frame 16 c and the upper right frame 16 d of the bonnet 16 . When the bonnet cover 27 is operated to the closed position, the rear end portion 27a of the bonnet cover 27 protrudes rearward from the frame 16c of the bonnet 16, and an opening 27e for the operator to operate the fixing member 31. is provided at the rear portion of the lateral surface portion of the bonnet cover 27 .

A rod-shaped restricting member 33 is provided at the lower portion of the frame 16b of the bonnet 16 so as to be able to swing about an axis P5 extending in the vertical direction. A plate-shaped regulation plate 34 is connected to the lower front portion of the bonnet cover 27 , the regulation plate 34 has a regulation hole 34 a , and the end of the regulation member 33 is inserted into the regulation hole 34 a of the regulation plate 34 . ing.

A guide plate 35 is connected to the right portion of the body frame 12 where the bonnet 16 is provided so as to protrude from the body frame 12 to the right laterally outward direction. The guide plate 35 is provided with a horizontal portion 35a and an obliquely downward inclined portion 35b that becomes lower as the distance from the bonnet 16 increases.

As shown in FIGS. 1, 3 and 4, when the bonnet cover 27 is operated to the closed position, the rear end portion 27a of the bonnet cover 27 enters the lower front portion of the grain tank 6 as viewed from the side. A rear end portion 27a of the bonnet cover 27 and a front end portion 11a of the lower cover 11 overlap the input pulley 15a of the gear case 15 in a side view.

(Conventional technology, problems and effects related to bonnet cover)
In some cases, the rear end portion 27a of the bonnet cover 27 and the front end portion 11a of the lower cover 11 are positioned near the frame 16c of the bonnet 16 .
When removing the transmission belt 21 from the input pulley 15a of the gear case 15, there is room for improvement in terms of workability.

As shown in FIGS. 1, 3 and 4, the rear end portion 27a of the bonnet cover 27 protrudes rearward from the right rear frame 16c of the bonnet 16, and the rear end portion 27a of the bonnet cover 27 and the lower cover 11 are separated from each other. The front end portion 11a overlaps the input pulley 15a of the gear case 15 in a side view.

An operator can remove the transmission belt 21 from the input pulley 15 a of the gear case 15 by inserting his or her hand into the bonnet cover 27 to the open position. Similarly, by removing the lower cover 11, the operator can remove the transmission belt 21 from the input pulley 15a of the gear case 15 with his hands.

As a result, even if the operator operates the bonnet cover 27 to the open position without removing the lower cover 11 or removes the lower cover 11 with the bonnet cover 27 left in the closed position, the transmission belt 21 can be attached to the gear case 15. Since it can be removed from the input pulley 15a, workability is improved.

As shown in FIGS. 3 and 4, when the bonnet cover 27 is operated to the closed position, the upper and lower portions of the bonnet cover 27 are fixed by the fixing members 31 and 32, so that the bonnet cover 27 is fixed at the closed position. is performed stably.
Even if the rear end portion 27a of the bonnet cover 27 protrudes rearward from the frame 16c on the right rear portion of the bonnet 16, the operator puts his or her hand through the opening 27e of the bonnet cover 27 to force the operation of the fixing member 31. can be done without

When the bonnet cover 27 is operated from the closed position toward the open position, the end portion of the regulating member 33 is regulated by the regulating plate 34 while the regulating member 33 swings about the axis P5 in the counterclockwise direction in FIG. It moves along the hole 34a.
As shown in FIG. 5, when the bonnet cover 27 reaches the open position, the end of the regulating member 33 enters the bent end of the regulating hole 34a of the regulating plate 34, and the bonnet cover 27 is held at the open position. .

As shown in FIGS. 5 to 4, when the bonnet cover 27 is operated from the open position toward the closed position, even if the bonnet cover 27 is slightly lowered from the position of the axis P4, the lower part of the bonnet cover 27 is While contacting the inclined portion 35b of the guide plate 35 and being lifted, it rides on the horizontal portion 35a of the guide plate 35 and is guided to the closed position.

(Construction of guide part and support roller for changing state of grain tank)
As shown in FIGS. 6 to 9, the flat guide portion 36 is connected to the right portion of the body frame 12 so as to be positioned below the support frame 14 of the grain tank 6 operated to the closed state A1. (See FIG. 13).

A square-shaped opening 36a (corresponding to an entry portion) is opened in the portion of the guide portion 36 on the inner side of the body frame 12, and an opening is formed in the portion of the guide portion 36 on the right laterally outward side of the body frame 12. A portion 36b is opened. An inclined portion 36c directed obliquely downward, which becomes lower as the distance from the body frame 12 increases, is provided at the end of the guide portion 36 on the right laterally outward side of the body frame 12 .

In the support frame 14, when seen from the front side (equivalent to the side far from the first axis) of the support frame 14 in plan view and in the front-rear direction (equivalent to the radial direction with respect to the first axis), the bottom A support roller 37 (corresponding to a support portion) is rotatably supported at a portion on the inner side (corresponding to one lateral side) of the body frame 12 with respect to the screw 9 .

The support rollers 37 are provided on the lower portions 6 a and 6 b of the grain tank 6 via the support frame 14 , and are provided in a region below the lower portion 6 b on the inner side of the body frame 12 in the grain tank 6 . can roll along

(Structure for holding grain tank in closed state)
As shown in FIGS. 6 to 9, in the support frame 14, the front side portion of the support frame 14 in plan view and the right lateral outside of the body frame 12 with respect to the bottom screw 9 in the front-rear direction. A channel-shaped bracket 38 is connected to the one side portion.

An engaging member 39 formed by bending a round bar into an angle is attached to a bracket 38 so as to be rotatable and vertically movable, and a spring 40 is provided to bias the engaging member 39 downward. ing.

As shown in FIGS. 3 and 6, a hook-shaped engaging member 41 is provided on the upper left front portion of the grain tank 6, and the engaging member 41 is engaged with the fixing portion 5a provided on the threshing device 5. can be combined and released. In the support frame 14, in a portion on the front side from the axis P1 with respect to the support frame 14 in plan view, and in a portion on the right laterally outward side of the body frame 12 with respect to the bottom screw 9 in the front-rear direction, An operating lever 42 is provided.

A linking rod 43 is connected across the engaging member 41 and the operating lever 42, and a spring 44 that biases the engaging member 41 toward the engaging side of the fixing portion 5a of the threshing device 5 is connected to the engaging member 41 and the operating lever 42. It is attached to the lever 42 .

(Construction of Ascending Mechanism for Change of Grain Tank State)
As shown in FIGS. 6 to 9, in the support frame 14, the rear side (corresponding to the side close to the first axis) of the support frame 14 in plan view and A lift mechanism 45 is provided on the right laterally outward side (corresponding to the other side in the lateral direction) of the body frame 12 with respect to the bottom screw 9 when viewed from the radial direction to the bottom screw 9 .

The lifting mechanism 45 is provided with a lifting arm 46 , a lifting roller 47 , an operating arm 48 and a stopper portion 49 . A lifting mechanism 45 is provided in a region below the lower portion 6 a of the grain tank 6 and is provided on the right laterally outward side of the fuselage frame 12 with respect to the bottom screw 9 .

The lifting arm 46 is formed in a box shape by connecting a plurality of plate materials, and around an axis P2 (corresponding to a second axis) along the front-rear direction (corresponding to a radial direction with respect to the first axis), It is swingably supported by the support frame 14 . The lifting arm 46 extends downward from the axis P2, and extends laterally outward on the right side of the body frame 12 (corresponding to one side) and the body frame with respect to a vertical line B1 passing through the axis P2. 12 can be swung over the inner side (corresponding to the other side).

A lifting roller 47 is rotatably provided at the lower portion of the lifting arm 46 , is placed on the guide portion 36 , and can roll along the guide portion 36 . The stopper portion 49 is formed in a bar shape and is connected to the support frame 14 so as to be positioned on the inner side of the body frame 12 with respect to the lifting arm 46 .

The operating arm 48 is provided on the lifting arm 46 and extends laterally outward on the right side of the body frame 12 . When the operator holds the operation arm 48 and operates it upward and downward, the lifting arm 46 is swung to the inner side and the right laterally outward side of the body frame 12 with respect to the vertical line B1. The length of the operating arm 48 is set so that the operating arm 48 does not come into contact with the lower cover 11 even when the lower cover 11 is attached.

6 and 9 is a state in which the grain tank 6 is operated to the closed state A1, the operation arm 48 is operated upward, and the lifting arm 46 is moved laterally on the right side of the body frame 12 with respect to the vertical line B1. This is a state in which the support roller 37 has been moved outward and has entered the opening 36 a of the guide portion 36 .

A worker operates the operating arm 48 downward to operate the lifting arm 46 toward the inner side of the body frame 12 with respect to the vertical line B1, thereby lifting the grain tank through the lifting arm 46 and the lifting roller 47. 6 is lifted with respect to the guide portion 36, and the support roller 37 is lifted from the opening 36a of the guide portion 36 (see FIG. 10).

As described above, the lifting arm 46 is operated toward the inside of the body frame 12 with respect to the vertical line B1, and the lifting arm 46 and the lifting roller 47 cross the vertical line B1 toward the inside of the body frame 12 to reach Glen. When the front part of the tank 6 and the support rollers 37 are lifted, the weight of the grain tank 6 causes the lifting arm 46 to swing toward the inside (the other side) of the body frame 12 .

In this case, since the swinging of the lifting arm 46 toward the inside of the body frame 12 is stopped by the stopper portion 49, the front portion of the grain tank 6 and the support roller 37 are maintained in a state of being lifted.

(Construction of extension arm for changing state of grain tank)
As shown in FIGS. 1, 6 and 9, a round pipe-shaped extension arm 50 is attached to the lower portion 6a of the grain tank 6. As shown in FIG. As shown in FIG. 10, the operator can extend the length of the operating arm 48 by removing the extension arm 50 and inserting it into the operating arm 48 to attach it.

As a result, the operator can operate the lifting arm 46 toward the right laterally outward side and inner side of the body frame 12 by operating the operation arm 48 (extension arm 50) without difficulty.

(Structure of Stop Mechanism Concerning State Change of Grain Tank)
As shown in FIGS. 6, 7 and 8, in the body frame 12, a block-shaped support portion 51 is connected to the front portion of the guide portion 36 with respect to the inclined portion 36c, and a channel-shaped bracket 52 is connected to the support portion 51. , and the bracket 52 has an opening 52a.

A stop mechanism 53 is provided on the support portion 51, and the stop mechanism 53 is provided with a blocking member 54, a fulcrum shaft 55, an arm 56, and a spring 57 (corresponding to an urging mechanism). A fulcrum shaft 55 is supported by the support portion 51 so as to be rotatable around an axis P6 extending in the front-rear direction. connected to

The blocking member 54 is provided with a blocking portion 54a at one end and a receiving portion 54b at the other end. (see FIG. 12), it is possible to swing about the axis P6. At the blocking position C<b>1 , the blocking portion 54 a of the blocking member 54 protrudes above the support portion 51 , and the receiving portion 54 b of the blocking member 54 hits the upper surface of the body frame 12 . At the allowable position C2, the blocking portion 54a and the receiving portion 54b of the blocking member 54 are at the same height as the support portion 51. As shown in FIG.

A spring 57 is attached to the fulcrum shaft 55, and the spring 57 biases the blocking member 54 (stopping mechanism 53) to the blocking position C1. The operator can operate the blocking member 54 (stopping mechanism 53) against the spring 57 to the allowable position C2 by holding the arm 56 and operating it.

(Structure of Intermediate State Holding Mechanism Concerning State Change of Grain Tank)
As shown in FIGS. 6, 7, and 8, in the support frame 14, the front side (corresponding to the side far from the first axis) of the support frame 14 in a plan view, and An intermediate state holding mechanism 58 is provided in a portion on the inner side (corresponding to one side in the lateral direction) of the body frame 12 with respect to the bottom screw 9 when viewed from the radial direction to the bottom screw 9 .

The intermediate state holding mechanism 58 is provided with a support member 59 , an engaging member 60 and a spring 61 .
The support member 59 is formed by bending a plate material into a crank shape, and is connected to the support frame 14 . A receiving portion 59 a is provided on the lower portion of the support member 59 , and a support portion 59 b is provided on the upper portion of the support member 59 .

The engaging member 60 is formed by bending a round bar into an angle, and is attached to the support member 59 so as to be rotatable and vertically movable. A spring 61 urges the engagement member 60 downward.

(Operation from closed state to open state of grain tank) -1
The states shown in FIGS. 6, 7, and 9 are states in which the grain tank 6 is operated to the closed state A1, the support roller 37 descends and enters the opening 36a of the guide portion 36, and the front portion of the grain tank 6 is moved. It is in a state of being supported by the guide portion 36 via the support rollers 37 .

The engaging member 39 is lowered by the spring 40 to enter the opening 36b of the guide portion 36, and the engaging member 41 (see FIG. 6) is engaged with the fixing portion 5a of the threshing device 5 by the spring 44, thereby The tank 6 is held in the closed state A1.

In the lifting mechanism 45, the operating arm 48 is operated upward, and the lifting arm 46 (the mounting point where the lifting roller 47 contacts the guide portion 36) is positioned on the right laterally outward side of the body frame 12 with respect to the vertical line B1. is operated by

In the intermediate state holding mechanism 58, the engagement member 60 is lifted and placed on the support portion 59b of the support member 59, and the engagement member 60 is lifted and held. In the stopping mechanism 53, the blocking member 54 is operated by the spring 57 to the blocking position C1.

A worker standing on the ground stops the engine 13, operates the discharge clutch 22 to the disengaged state, removes the lower cover 11, or operates the bonnet cover 27 to the open position, and attaches the transmission belt 21 to the gear case 15. Remove from input pulley 15a.

As shown in FIG. 10, the operator removes the lower cover 11, removes the extension arm 50 from the lower portion 6a of the grain tank 6, attaches it to the operation arm 48, and operates the operation arm 48 (extension arm 50) downward. , the lifting arm 46 (the mounting point where the lifting roller 47 contacts the guide portion 36) is operated toward the inside of the body frame 12 with respect to the vertical line B1.

The lifting arm 46 (the mounting point where the lifting roller 47 contacts the guide portion 36) is operated toward the inner side of the body frame 12 with respect to the vertical line B1, so that the lifting arm 46 and the lifting roller 47 , the front portion of the grain tank 6 is lifted with respect to the guide portion 36, and the support roller 37 is lifted from the opening portion 36a of the guide portion 36 by the lifting mechanism 45. As shown in FIG.

Swinging of the lifting arm 46 toward the inside of the body frame 12 due to the weight of the grain tank 6 is stopped by the stopper portion 49, so that the front portion of the grain tank 6 and the support rollers 37 are maintained in a lifted state. be done.

(Operation from closed state to open state of grain tank)-2
As shown in FIG. 10, the operator lifts the engaging member 39 and pulls it upward from the opening 36b of the guide portion 36, and puts the engaging member 39 on the upper support portion 38a of the bracket 38. , holds the engagement member 39 in the lifted and operated state.

The operator operates the operating lever 42 (see FIG. 6) against the force of the spring 44 to remove the engaging member 41 from the fixed portion 5a of the threshing device 5, while operating the handle 62 connected to the support frame 14. Then, as shown in FIGS. 10 and 11, the grain tank 6 is directed laterally outward to the open state A3 on the right side.

As a result, the lifting roller 47 is placed on the guide portion 36 , so that the front portion of the grain tank 6 is supported by the guide portion 36 via the lifting roller 47 , and the lifting roller 47 moves right along the guide portion 36 . It is guided from the closed state A1 to the open state A3 side while rolling in the direction.

The support roller 37 escapes from the opening 36 a of the guide portion 36 , and the support roller 37 is placed on the guide portion 36 due to the displacement of each portion of the grain tank 6 . By placing the support roller 37 on the guide portion 36 , the front portion of the grain tank 6 is supported by the guide portion 36 via the support roller 37 . It is guided from the closed state A1 to the open state A3 side while rolling in the direction.

(Operation from closed state to open state of grain tank)-3
As shown in FIG. 11, when the grain tank 6 is operated toward the open state A3, the lifting roller 47 is disengaged from the guide portion 36, and when the support roller 37 reaches the right end portion of the guide portion 36, the intermediate state holding mechanism At 58, the receiving portion 59a of the support member 59 hits the blocking portion 54a of the blocking member 54 (stop mechanism 53) at the blocking position C1, and the grain tank 6 stops.

In this case, due to the inertia of the grain tank 6 toward the open state A3, even if a large load is applied to the blocking portion 54a of the blocking member 54 (stop mechanism 53) at the blocking position C1 toward the open state A3 side. Since the receiving portion 54b of the blocking member 54 is in contact with the upper surface of the body frame 12, the blocking member 54 does not move.

As shown in FIG. 11, the intermediate state A2 of the grain tank 6 is a state in which the receiving portion 59a of the support member 59 hits the blocking portion 54a of the blocking member 54 (stopping mechanism 53) at the blocking position C1 and the grain tank 6 is stopped. , and an intermediate state A2 located at the right end of the body frame 12 between the closed state A1 and the open state A3.

The support roller 37 is guided by the guide portion 36 between the closed state A1 and the intermediate state A2. The front portion is supported by the guide portion 36 via the support rollers 37 .
When the grain tank 6 is operated from the closed state A1 toward the open state A3 side, the grain tank 6 is stopped at the intermediate state A2 by the blocking member 54 (stopping mechanism 53) at the blocking position C1.

As shown in FIG. 11, when the grain tank 6 is stopped in the intermediate state A2, the operator disengages the engaging member 60 from the supporting portion 59b of the supporting member 59 in the intermediate state holding mechanism 58 to engage. When the member 60 is lowered by the spring 61 and inserted into the opening 52a of the bracket 52, the grain tank 6 is held in the intermediate state A2.

(Operation from closed state to open state of grain tank)-4
When an operator operates the grain tank 6 from the intermediate state A2 toward the open state A3, the operator lifts the engaging member 60 in the intermediate state holding mechanism 58 to operate the bracket 52 as shown in FIG. is pulled upward from the opening 52a, the holding in the intermediate state A2 is released, and the engaging member 60 is put on the supporting portion 59b of the supporting member 59 and held in the lifted state.

The operator holds the handle 62 and slightly returns the grain tank 6 from the intermediate state A2 toward the closed state A1, and moves the receiving portion 59a of the support member 59 to the blocking member 54 (stopping mechanism 53) at the blocking position C1. It is slightly separated from the blocking portion 54a.

As shown in FIGS. 11 and 12, the operator holds the arm 56 of the stopping mechanism 53 and operates the blocking member 54 (stopping mechanism 53) against the spring 57 to the allowable position C2, while pushing the handle 62. and operate the grain tank 6 from the intermediate state A2 toward the open state A3.

In the intermediate state holding mechanism 58, the engaging member 60 passes over the support portion 51 and the bracket 52, and the receiving portion 59a of the support member 59 passes over the blocking member 54 (stop mechanism 53) at the allowable position C2.

As a result, movement of the grain tank 6 to the open state A3 in the intermediate state A2 is permitted by the blocking member 54 (stopping mechanism 53) at the permitted position C2. After the grain tank 6 is operated from the intermediate state A2 toward the open state A3, when the operator releases the arm 56, the blocking member 54 (stopping mechanism 53) is automatically moved to the blocking position C1 by the spring 57. be done.

When the operator operates the grain tank 6 to the open state A3, the operator places a stand (not shown) at the front lower portion of the grain tank 6 or the like so that the grain tank 6 is supported on the ground via the stand. You should do it like this.

(Operation from open state to closed state of grain tank) -1
When the worker operates the grain tank 6 from the open state A3 toward the closed state A1, as shown in FIG. is held in the lifted state, and in the intermediate state holding mechanism 58, the engagement member 60 is placed on the support portion 59b of the support member 59 and held in the lifted state. The operator removes the extension arm 50 from the operation arm 48 and attaches it to the lower portion 6 a of the grain tank 6 in the lifting mechanism 45 .

As shown in FIGS. 6-9, a triangular guide member 63 is connected to the inner end of the body frame 12 at the lower portion of the support frame 14 .
As shown in FIGS. 12 to 11, when the grain tank 6 is operated from the open state A3 toward the closed state A1, the guide member 63 comes into contact with the inclined portion 36c of the guide portion 36 and rides on the guide member. 63 and the inclined portion 36c of the guide portion 36, the front portion of the grain tank 6 is lifted slightly.

By slightly lifting the front portion of the grain tank 6, the support roller 37 is placed on the guide portion 36 from the inclined portion 36c of the guide portion 36, and the front portion of the grain tank 6 moves toward the guide portion 36 via the support roller 37. , and the grain tank 6 reaches the intermediate state A2.

(Operation from open state to closed state of grain tank)-2
As shown in FIG. 11, when the grain tank 6 reaches the intermediate state A2, in the intermediate state holding mechanism 58, the engaging member 60 passes over the supporting portion 51 and the bracket 52, and the receiving portion 59a of the supporting member 59 It contacts the blocking member 54 (stopping mechanism 53) at the blocking position C1.

The blocking member 54 (stopping mechanism 53) is inclined obliquely at the blocking position C1. As a result, when the receiving portion 59a of the support member 59 contacts the blocking member 54 (stopping mechanism 53) at the blocking position C1 while the grain tank 6 is operated from the open state A3 toward the closed state A1, the receiving portion of the support member 59 is closed. The portion 59a passes over the blocking member 54 (stopping mechanism 53) at the allowing position C2 while operating the blocking member 54 (stopping mechanism 53) against the spring 57 to the allowing position C2. As a result, movement of the grain tank 6 to the closed state A1 in the intermediate state A2 is permitted by the blocking member 54 (stopping mechanism 53) at the permitted position C2.

When the grain tank 6 passes through the intermediate state A2 (when the receiving portion 59a of the support member 59 passes above the blocking member 54 (stopping mechanism 53) at the allowable position C2), the blocking member 54 (stopping mechanism 53) is moved by the spring 57 automatically to the blocking position C1.

(Operation from open state to closed state of grain tank)-3
As shown in FIGS. 11 to 9 , when the grain tank 6 is operated from the intermediate state A2 toward the closed state A1 side, the support roller 37 is placed on the guide portion 36, thereby moving the front of the grain tank 6. The support roller 37 is supported by the guide portion 36 via the support roller 37, and the support roller 37 rolls leftward along the guide portion 36 and is guided from the intermediate state A2 toward the closed state A1 side.

In the lifting mechanism 45, the lifting roller 47 is placed on the guide portion 36 from the inclined portion 36c of the guide portion 36, the operating arm 48 is operated upward, and the lifting arm 46 (lifting roller 47 is placed in contact with the guide portion 36). point) is operated to the right laterally outward side of the body frame 12 with respect to the vertical line B1.

When the grain tank 6 reaches the closed state A<b>1 , the support roller 37 descends and enters the opening 36 a of the guide portion 36 . The engaging member 41 (see FIG. 6) is automatically engaged with the fixing portion 5a of the threshing device 5 by the spring 44. As shown in FIG.

The operator removes the engaging member 39 from the support portion 38 a of the bracket 38 , lowers the engaging member 39 by the spring 40 , and inserts it into the opening 36 b of the guide portion 36 . As a result, the grain tank 6 is held in the closed state A1.

(First alternative embodiment of the invention)
A grain tank 6 may be provided on the left side of the body frame 12 . According to this configuration, the open state A3 of the grain tank 6 is a state in which the grain tank 6 protrudes left laterally outward from the body frame 12 .

(Second alternative embodiment of the invention)
Instead of the opening 36a of the guide portion 36, a concave portion having a bottom portion may be provided in the guide portion 36 as a recess.

(Third alternative embodiment of the invention)
Instead of the support rollers 37, sled-like plate members may be provided on the lower portions 6a and 6b of the grain tank 6 as support portions. In this configuration, the entry portion of the guide portion 36 may be eliminated.

(Fourth alternative embodiment of the invention)
The support roller 37 is provided on the rear side (corresponding to the side close to the first axis) with respect to the support frame 14 in plan view, and the lifting mechanism 45 is provided on the front side (corresponding to the first axis) with respect to the support frame 14 in plan view. (corresponding to the side far from the core).

(Fifth alternative embodiment of the invention)
The support roller 37 and the lifting mechanism 45 may be provided on the inner side of the body frame 12 with respect to the bottom screw 9 when viewed from the front-rear direction (corresponding to the radial direction with respect to the first axis).
According to this configuration, the support roller 37 and the lifting mechanism 45 are provided in the region below the lower portion 6 b on the inner side of the body frame 12 in the grain tank 6 .

(Sixth alternative embodiment of the invention)
In the lifting mechanism 45, the operation arm 48 is positioned downward while the support roller 37 is lowered to enter the opening 36a of the guide portion 36, and the lifting arm 46 is positioned inward of the body frame 12 with respect to the vertical line B1. It may be configured to be located on one side (one side).

According to this configuration, the operator operates the operating arm 48 upward to operate the lifting arm 46 laterally outward (the other side) of the body frame 12 with respect to the vertical line B1. (The mounting point where the lifting roller 47 contacts the guide portion 36) is operated laterally outward (the other side) of the body frame 12 with respect to the vertical line B1, and via the lifting arm 46 and the lifting roller 47, The front portion of the grain tank 6 is lifted with respect to the guide portion 36 .

(Seventh alternative embodiment of the invention)
In the lifting mechanism 45, the operation arm 48 is operated, the swinging of the lifting arm 46 due to the weight of the grain tank 6 is stopped by the stopper portion 49, and the front portion of the grain tank 6 and the support roller 37 are lifted. A locking mechanism (not shown) may be provided to lock and unlock the lift arm 46 to the support frame 14 in this condition, if maintained.

By fixing the lifting arm 46 to the support frame 14 in a state where the front part of the grain tank 6 and the support roller 37 are lifted, the lifting arm 46 swings due to vibration or the like, and the grain tank 6 is lifted. It is possible to prevent the front and support rollers 37 from being operated downward.

INDUSTRIAL APPLICABILITY The present invention can be applied not only to ordinary combine harvesters but also to self-throwing combine harvesters, and can be applied not only to rice harvesters but also to harvesters for other crops.

6 grain tank (reservoir)
6a lower part 6b lower part 9 bottom screw (crop discharge mechanism)
12 Machine body frame 14 Support frame 36 Guide part 36a Opening (entering part)
37 support roller (support part)
45 lifting mechanism 46 lifting arm 47 lifting roller 48 operating arm 49 stopper portion 50 extension arm 53 stopping mechanism 57 spring (biasing mechanism)
58 Intermediate state holding mechanism A1 Closed state A2 Intermediate state A3 Open state B1 Vertical line C1 Blocking position C2 Allowable position P1 Axis center (first axis center)
P2 axis (second axis)

Claims (12)

body frame and
A closed state in which the harvested crops can be stored on the body frame, and an open state in which the body frame projects laterally outward from the body frame. a storage section supported by the body frame so as to be able to change its state;
a support provided at the bottom of the reservoir;
a guide portion that supports the storage portion by placing the support portion thereon and can guide the support portion from the closed state toward the open state;
A harvester provided with a lifting mechanism capable of lifting the support portion from the guide portion. When the storage portion is operated to the closed state, the guide portion is provided with an entry portion into which the support portion descends and enters,
2. The harvester according to claim 1, wherein the lifting mechanism lifts the supporting portion from the entering portion. The harvester according to claim 1 or 2, wherein the support portion is a support roller that can roll along the guide portion. In the lifting mechanism,
Around a second axis along the radial direction with respect to the first axis, swingable in one side and the other side with respect to a vertical line passing through the second axis, downward from the second axis. a lifting arm extended from the
a lifting roller provided at the bottom of the lifting arm and capable of rolling along the guide;
Provided on the lifting arm, by manipulating the lifting arm to the other side with respect to the vertical line, the supporting portion can be lifted via the lifting arm and the lifting roller, and is manually operated an operating arm;
The harvester according to any one of claims 1 to 3, further comprising a stopper portion that stops swinging of the lifting arm to the other side when the support portion is lifted. 5. The harvester according to claim 4, further comprising an extension arm that can be attached to and detached from said operation arm and that can extend the length of said operation arm by being attached to said operation arm. A support frame is provided below the reservoir along a direction orthogonal to a radial direction with respect to the first axis,
In a plan view, the support portion is provided on one of the side near the first axis and the side far from the support frame, and the lifting mechanism is provided on the side near the first axis and the side far from the support frame. Harvesting machine according to any one of the preceding claims, provided on the other of the far sides. a crop discharge mechanism capable of discharging the crop in the storage part is provided at the bottom of the storage part along a radial direction with respect to the first axis;
When viewed from the radial direction with respect to the first axis, the support portion is provided on one side in the horizontal direction with respect to the crop discharging mechanism, and the lifting mechanism is provided on the other side in the horizontal direction with respect to the crop discharging mechanism. Harvesting machine according to any one of claims 1 to 6, characterized in that a lower portion of the storage portion is formed in a tapered shape in which the lateral width becomes narrower toward the crop discharge mechanism when viewed from the radial direction with respect to the first axis;
The harvester according to claim 7, wherein the lifting mechanism is provided in a region below the lower portion of the reservoir. When viewed in the radial direction with respect to the first axis, the support portion is provided on the inner side of the body frame with respect to the crop discharge mechanism, and the lifting mechanism is lateral to the body frame with respect to the crop discharge mechanism. 9. Harvesting machine according to claim 7 or 8, provided on the outer side. An intermediate state located at an end of the body frame is set at a position between the closed state and the open state,
the guide portion can guide the support portion between the closed state and the intermediate state;
a blocking position for stopping the storage portion in the intermediate state when the storage portion is operated from the closed state toward the open state; Harvesting machine according to any one of the preceding claims, provided with a stop mechanism operable in a permissive position to allow movement into a state. a biasing mechanism for biasing the stop mechanism to the blocking position;
When the storage portion is operated from the open state toward the intermediate state, the storage portion comes into contact with the stop mechanism in the blocking position, so that the stop mechanism resists the biasing mechanism and acts as the allowable state. 11. A harvester according to claim 10, wherein said stop mechanism is actuated to said blocking position by said biasing mechanism when actuated to a position and said reservoir passes said intermediate state. The harvester according to claim 10 or 11, further comprising an intermediate state holding mechanism capable of holding and releasing the storage section in the intermediate state.

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