JP2019126278A - Combine - Google Patents

Abstract

To provide a combine capable of surely holding a use state of a waste straw processor and reducing troublesomeness in inspection and maintenance of a thresher and the waste straw processor.SOLUTION: A combine comprises: a thresher 9 for performing threshing processing of reaped grain culm; a waste straw processor 12 jointed to a rear end part of the thresher 9, rotatably supported to the rear end part rotatably around a vertical shaft, and which can be switched between a use state in which the rear end part is closed and shredding processing can be performed, and an open state for opening the rear end part to a rear side of a machine body; and a lock mechanism 40 for holding the position of the waste straw processor 12 to the position in the use state. The lock mechanism 40 has a first engagement part 41 provided on the thresher 9, a second engagement part 42 provided on the waste straw processor 12 and can be engaged to the first engagement part 41. The combine has an operation tool 44 for switching a state of the first and second engagement parts 41, 42 between an engagement state and non-engagement state, and a holding mechanism 45 capable of holding the position of the operation tool 44 in the engagement state.SELECTED DRAWING: Figure 7

Description

  The present invention is connected to a threshing device for threshing a harvest grain stalk, and a rear end of the threshing device, and shreds the waste discharged from the threshing device and rotates around the longitudinal axis at the rear end. And a moveable discharge control device.

  For example, in Patent Document 1, a threshing device (denoted by code "4" in the literature) for threshing mowing grain and a rear end portion of the threshing device are connected to shred the excrement discharged from the threshing device, There is disclosed a combine provided with a waste disposal device (“drain wall shredding device 38” in the literature) supported at the rear end so as to be rotatable about a longitudinal axis (“axial core Y” in the literature). Has been. The waste disposal device is configured to be switchable between a use state in which the rear end of the threshing device is closed to enable shredding and an open state in which the rear end of the threshing device is opened rearward of the machine. ing.

Unexamined-Japanese-Patent No. 2017-086022

  By the way, in the combine of patent document 1, in order to hold | maintain a displacement processing apparatus in use condition, the right side location of the displacement processing apparatus is bolt-fixed. If it is this structure, the use state of a waste disposal apparatus will be reliably hold | maintained. However, since a plurality of bolt fixing points are normally provided, the opening and closing operation of the waste disposal processing apparatus during maintenance inspection of the threshing apparatus and the waste disposal apparatus involves disclosing work and disclosing work of bolts at multiple locations. Therefore, it takes a lot of time for maintenance and inspection.

  In view of the above circumstances, an object of the present invention is to provide a combine in which the state of use of the slaughtering apparatus is reliably maintained and the troublesomeness in maintenance inspection of the threshing apparatus and the sewage processing apparatus is reduced. is there.

The combine of the present invention is
A threshing device for threshing the harvested cereal meal;
It is connected to the rear end of the threshing device, shreds the shed discharged from the threshing device, and is supported rotatably around a longitudinal axis at the rear end to close the rear end A discharge processing device capable of switching between a use state in which the shredding process can be performed and an open state in which the rear end portion is opened to the rear of the machine;
A locking mechanism capable of holding the waste disposal apparatus in the use state, and
The lock mechanism is provided with a first engagement portion provided in the threshing device, and a second engagement portion provided in the rejection processing device and engageable with the first engagement portion,
By operating one or both of the first engagement portion and the second engagement portion, the first engagement portion and the second engagement portion can be switched between an engaged state and a non-engaged state. An operation tool;
And a holding mechanism capable of holding the operation tool in the engaged state.

  According to the present invention, the lock mechanism is provided with the first engagement portion and the second engagement portion, and the rejection processing device is positioned in the use state by the engagement between the first engagement portion and the second engagement portion. By being held and the engagement between the first engagement portion and the second engagement portion being released, the displacement processing device can be turned. That is, when opening and closing the waste disposal apparatus in the maintenance inspection of the threshing device or the waste disposal apparatus, it is only necessary to engage or disengage the first engagement portion and the second engagement portion, and the maintenance inspection man-hour is reduced. It is reduced and the burden is reduced. Moreover, in this invention, since the engagement of a 1st engaging part and a 2nd engaging part is hold | maintained reliably by a holding mechanism, the use condition of a waste disposal apparatus is reliably hold | maintained. As a result, it is possible to achieve a combine in which the state of use of the slaughtering device is reliably maintained, and the troublesomeness in maintenance and inspection of the threshing device and the sewage processing device is reduced.

In the present invention,
A glen tank for storing the grains that have been threshed by the threshing device in a state spanning the side of the threshing device and the side of the waste treatment device is provided,
The lock mechanism is disposed between the waste disposal device and the Glen tank,
The operation tool extends from the second engagement portion toward the rear of the machine body, and is supported by the exclusion processing device in a state where the second engagement portion can be operated.
Preferably, the holding mechanism is supported by the displacement treating device.

  With this configuration, since the operating tool extends rearward of the machine body, the operator can easily operate the operating tool from the rear of the drainage processing apparatus. In addition, since the operating tool and the holding mechanism are supported by the exclusion processing device, the positional relationship between the operating tool and the holding mechanism is maintained as compared with the configuration in which the operating tool and the holding mechanism are supported by different members. This facilitates the position of the operating tool in the engaged state.

In the present invention,
The operation tool is extended to a rear end of the waste disposal device along a side wall of the waste treatment device,
The holding mechanism is preferably supported by the side wall.

  With this configuration, the operator can easily operate the operation tool without reaching for the side where the lock mechanism is located. In addition, since the holding mechanism is supported by the side wall, it is easier to hold the positional relationship between the operation tool and the holding mechanism.

In the present invention,
A grip portion is provided at the rear end of the operation tool,
The holding mechanism is preferably provided in the vicinity of the grip portion.

  With this configuration, since the grip portion and the holding mechanism are close to each other, the batch operation of the grip portion and the holding mechanism is facilitated as compared with a configuration in which the grip portion and the holding mechanism are separated. Thereby, the operator can easily operate the grip portion and the holding mechanism without taking an unreasonable posture.

In the present invention,
A plurality of the lock mechanisms are provided in a line up and down;
A link mechanism is provided so as to extend across the plurality of lock mechanisms, and interlocks the plurality of lock mechanisms.
The operation tool is preferably connected to an uppermost lock mechanism among the plurality of lock mechanisms and configured to operate the uppermost lock mechanism.

  According to this configuration, since the plurality of lock mechanisms are provided side by side, the use state of the waste disposal apparatus can be firmly held as compared with the case where there is one lock mechanism. Further, since the plurality of lock mechanisms are interlocked and linked by the link mechanism and the operation tool is provided in the uppermost lock mechanism, the operator can operate the plurality of lock mechanisms at once by operating only one operation tool, Operation of the lock mechanism is facilitated.

It is a left view of a combine. It is a top view of a combine. It is a left side longitudinal cross-sectional view of a displacement processing device. It is a rear view of a combine. It is a rear view of the combine which shows between a threshing apparatus and a gren tank. It is a left view which shows a fuel tank and a urea tank. It is a right view which shows a waste disposal apparatus and a locking mechanism. It is a right view which shows a waste disposal apparatus and a locking mechanism. It is a top view which shows the positional relationship of the pin and hook in a locking mechanism. It is the IX-IX figure in FIG. 7 which shows a holding mechanism. It is a left view which shows the support state of the side cover of the waste disposal apparatus vicinity. It is a rear view which shows the support state of the side cover of the waste disposal apparatus vicinity. It is a front cross-sectional view which shows the support state of the side cover of the waste disposal apparatus vicinity.

  EMBODIMENT OF THE INVENTION The form for implementing this invention is demonstrated based on drawing. In the following description, the direction of the arrow F shown in FIG. 1 is “front side of the aircraft”, the direction of arrow B is “back side of the aircraft”, and the left side in the direction of arrow F, that is, the arrow L shown in FIG. The direction of the left side is the "airframe left side", and the direction of the right side toward the direction of the arrow F, that is, the direction of the arrow R shown in FIG.

[Overall structure of the combine]
1 and 2 show a conventional combine that corresponds to the "combine" of the present invention. An airframe frame 1 and a crawler traveling device 2 are provided in the present combine. In front of the fuselage, a reaper 3 is provided for reaping the crop. The reaper 3 is provided with a scraping reel 4 for scraping the cropping lath, a cutting blade 5 for cutting the cropping grain, and a scraping auger 6 for scraping the scraping gravel.

  A driving cabin 7 is provided on the right side of the front of the aircraft. Behind the driving cabin 7, a gren tank 8 for storing grains after threshing processing is provided. On the left side of the gren tank 8, a threshing device 9 is provided for threshing the mowing grain. A feeder 10 is provided across the harvesting unit 3 and the threshing device 9 to convey the harvested cereal meal toward the threshing device 9. A grain discharging device 11 for discharging grains in the gren tank 8 to the outside is provided. The grain discharging device 11 is provided with a vertical conveyance unit 11A and a horizontal conveyance unit 11B. The lower end portion of the vertical conveyance portion 11A is communicatively connected to the grain tank 8. The horizontal conveyance portion 11B is connected to the upper end portion of the vertical conveyance portion 11A so as to be able to swing up and down. In the rear part of the threshing device 9, a slaughtering device 12 that shreds the slaughter after threshing processing by the threshing device 9 is provided. Although mentioned later, the displacement processing apparatus 12 is comprised so that it can rock | fluctuate around the rocking axial center X. As shown in FIG.

  A throttling chamber T (see FIG. 3) is formed at the top of the threshing device 9, and a throttling cylinder 13 is provided in the throttling chamber T. The threshing cylinder 13 is rotatable around an axial center extending in the longitudinal direction of the machine. A net 14 is provided below the threshing cylinder 13. At the bottom of the threshing device 9, a swing sorting device 15 that screens and sorts the object to be sorted while transporting it to the rear of the machine, a red pepper 16 that blows the sorting wind to the swing sorting device 15, the first grain (single grain) The first recovery section 17 that recovers the converted grain and the like, and the second recovery section 18 that recovers the second grain (such as a grain with a stem) is provided.

  Five side covers 19A, 19B, 19C, 19D, and 19E are provided to cover the side of the threshing device 9 on the lateral side of the machine body, that is, the left side of the machine body from the lateral side of the machine body. The side cover 19A covers the swing base end of the feeder 10 and the left side of the front upper portion of the threshing device 9. The side cover 19 </ b> B covers the left side portion of the threshing device 9 where the handling cylinder 13 is located. The side cover 19 </ b> C covers the left side portion of the upper portion of the waste disposal apparatus 12. The side cover 19D covers the left side portion of the portion where the rasp 16 and the recovery portion 17 are located at the lower part of the threshing device 9. The side cover 19 </ b> E covers the left side portion of the portion of the lower part of the threshing device 9, which extends between the collection portion 17 and the lower part of the waste disposal device 12. A buckle 19F is provided on each of the side covers 19A, 19B, 19C, 19D, and 19E, and each of the side covers 19A, 19B, 19C, 19D, and 19E is configured to be detachable by operation of the buckle 19F.

[Exhaust treatment device]
As shown in FIG. 3, the waste disposal apparatus 12 includes a plurality of fixed blades 20 </ b> A, a plurality of rotary blades 20 </ b> B, a dust outlet cover 21, a rotating body 22, a case 23, a guide cover 24, Is provided. The discharge processing device 12 is configured to shred the discharge by the plurality of fixed blades 20A and the plurality of rotary blades 20B. The dust outlet cover 21 is provided behind the handling cylinder 13, and dust in the threshing device 9 is guided by the dust outlet cover 21 and discharged to the rear of the machine body. The rotating body 22 is a cylindrical body that can rotate about the left-right direction of the machine body as an axis. A plurality of rotary blades 20B are radially attached to the rotary body 22.

  The case 23 covers the rotating body 22 and rotatably supports the rotating body 22. The case 23 includes a top plate 25, a pair of left and right side plates 26, and a bottom plate 27. The rotating body 22 extends across the left side plate 26 and the right side plate 26. The top 25 is positioned above the rotating body 22 across the left side plate 26 and the right side plate 26. The bottom plate 27 is located below the rotating body 22 across the left side plate 26 and the right side plate 26.

  The case 23 is formed with an input port 23a and a discharge port 23b. The bottom plate 27 serves as a waste path extending between the inlet 23a and the outlet 23b. The bottom plate 27 is configured so that the front portion of the bottom plate 27, that is, the portion where the input port 23a is located is inclined downward and the waste on the bottom plate 27 slides down toward the discharge port 23b. The plurality of rotary blades 20 </ b> B are erected upward from the bottom plate 27 at an intermediate position in the front-rear direction of the bottom plate 27.

  The waste disposal device 12 is connected to the rear end portion of the threshing device 9, and the waste disposal is introduced from the rear end of the threshing device 9 into the inlet 23a. The spit is guided from the inlet 23a onto the bottom plate 27, shredded by the plurality of fixed blades 20A and the plurality of rotary blades 20B, and discharged from the spout 23b to the outside. A guide cover 24 for guiding the waste after shredding rearward is attached to the discharge port 23b.

  A hinge 28 is provided on the left side of each of the threshing device 9 and the waste disposal device 12, that is, at the connection point of the lateral side of the lateral side of the machine as a swing fulcrum about the longitudinal axis. The hinge 28 is provided along the vertically oriented rocking axis X, and the eliminator 12 can be rocked about the rocking axis X via the hinge 28 with respect to the rear end of the threshing device 9. Is configured. From this, the waste disposal device 12 can be opened and closed in an open state in which the rear end of the threshing device 9 opens to the outer side of the machine and in a use state where the rear end of the threshing device 9 does not open to the outer side of the body. Is configured. Further, a lock mechanism 40 capable of holding the waste disposal apparatus 12 in a use state is provided on the right side of the waste disposal apparatus 12, that is, on the lateral side opposite to the side where the hinge 28 is located. In other words, the lock mechanism 40 is disposed between the waste disposal apparatus 12 and the glen tank 8, and is configured to support the front end of the right side portion of the waste disposal apparatus 12.

  When the exclusion processing device 12 is in use, the front end of the exclusion processing device 12 is supported by the hinge 28 and the locking mechanism 40 on both left and right sides. When the waste disposal apparatus 12 is in the open state, the waste disposal apparatus 12 is cantilevered by the hinge 28, so that the free end side of the waste disposal apparatus 12 bends below the swing base end side. Therefore, when the discharge processing device 12 is closed to be in the closed state, the right side of the discharge processing device 12 and the right side of the threshing device 9 are vertically misaligned, and the locking operation of the lock mechanism 40 is performed. There is a risk of problems. In order to prevent this problem, an inclined portion 12S (see FIGS. 7 and 8) is provided at the lower part of the right side of the threshing device 9. The inclined portion 12S is provided so as to protrude rearward of the machine body from a location adjacent to the lower side of the lower end portion of the drainage processing apparatus 12.

  The upper horizontal surface of the inclined portion 12S has substantially the same height as the lower end portion on the right side of the reject processing device 12 in the use state. Moreover, the upper side inclined surface of the inclination part 12S inclines below, so that a body back is carried out. When the waste disposal apparatus 12 swings from the open state to the use state, the lower right end of the waste disposal apparatus 12 contacts the upper inclined surface of the inclined portion 12S. In this state, when the operator presses the waste disposal device 12 in the direction of use, the right lower end of the waste treatment device 12 slides with respect to the upper inclined surface of the slope portion 12S, while the right side of the waste treatment device 12 is moved. The part is lifted to the upper horizontal surface of the inclined part 12S. As a result, the positional deviation between the right side of the reject processing device 12 and the right side of the threshing device 9 is eliminated, and the locking operation in the lock mechanism 40 becomes smooth.

  As shown in FIG. 3, a guide plate 29 is provided at the rear end of the threshing device 9 for smoothly guiding the sewage from the threshing device 9 to the scouring processing device 12. The guide plate 29 is positioned right behind the swing sorting device 15 and located below the receiving mesh 14 and configured to receive the displacement delivered from the threshing cylinder 13 or the swing sorting device 15 Yes. The guide plate 29 is inclined rearward and downward, and the inclination angle thereof is configured to be substantially the same as the inclination angle of the front portion of the bottom plate 27. The guide plate 29 is positioned above the bottom plate 27 in the airframe, and the guide plate 29 is disposed such that the rear portion of the guide plate 29 and the front portion of the bottom plate 27 overlap by a front-rear width h in plan view. In the present embodiment, the guide plate 29 protrudes to the side where the waste disposal device 12 is located, but the bottom plate 27 may protrude to the side where the threshing device 9 is located. Thereby, a gap is not generated between the guide plate 29 and the bottom plate 27 in a plan view, and the waste is smoothly slid down from the guide plate 29 toward the bottom plate 27. Further, when viewed in the front-rear direction, the induction plate 29 and the bottom plate 27 do not overlap, and a gap of the vertical distance d is formed between the rear end portion of the induction plate 29 and the front end portion of the bottom plate 27. Thereby, when the waste disposal apparatus 12 is opened and closed, interference between the guide plate 29 and the bottom plate 27 is avoided.

[Marking of supply port]
As shown in FIGS. 2, 4, and 5, a swinging exterior cover 30A and a fixed exterior cover 30B are provided side by side on the left and right sides of the machine body. The swing outer cover 30A is configured to cover the Glen tank 8, the vertical transport unit 11A, the urea tank 31, and the fuel tank 32 from the rear of the machine body. The hinge of the vertical axis P is provided at the right side end of the swing exterior cover 30A, and the swing exterior cover 30A swings between a closed position covering the rear of the fuselage and an open position opening the rear of the fuselage. It is configured to be able to open and close. The fixed exterior cover 30B is configured to be connected to the right end of the swing exterior cover 30A and cover the glen tank 8 from the rear of the machine body.

  As shown in FIGS. 5 and 6, the urea tank 31 and the fuel tank 32 are disposed at the rear of the machine in a state of being vertically aligned, and the urea tank 31 is mounted on a tank support 33 provided above the fuel tank 32. Is placed. A mounting table 34 is provided behind the urea tank 31. The mounting table 34 swings up and down around the horizontal axis of the machine body so that the longitudinal direction of the mounting table 34 is along the vertical direction, and the longitudinal direction of the mounting table 34 is along the front-rear direction. It is comprised so that it can switch to the use state which is.

  When the mounting table 34 becomes in use, for example, a portable tank or the like can be mounted on the surface of the mounting table 34. When the mounting table 34 is in the retracted state, the front surface of the mounting table 34 and the rear side portion of the urea tank 31 face each other, and the back surface of the mounting table 34 faces rearward of the machine body. When the mounting table 34 is in use, the mounting table 34 and the swinging outer cover 30A interfere with each other when the swinging outer cover 30A is swung to the closed position side. For this reason, it is necessary to switch the mounting table 34 from the use state to the storage state before closing the rocking exterior cover 30A to the closed position.

  A mark 35 for distinguishing the urea tank 31 and the fuel tank 32 is provided on the back surface of the mounting table 34. When the operator opens the swing outer cover 30A when performing the fuel or urea water supply operation, the mounting table 34 is in the retracted state, and the back surface of the mounting table 34 faces the rear of the machine body and faces the operator. Therefore, the mark 35 is easily visible to the operator. In this state, the supply port 31a of the urea tank 31 is located on the upper side of the mounting base 34 than the mounting base 34, and the supply port 32a of the fuel tank 32 is located on the lower side of the mounting base 34. Therefore, a notation clearly indicating the urea tank 31 is displayed above the mark 35 by an upward arrow 35a and characters, and a notation clearly indicating the fuel tank 32 by a downward arrow 35b and characters below the mark 35. Is displayed.

  The notation for specifying the urea tank 31 and the notation for specifying the fuel tank 32 are displayed in different colors. For example, the upward arrow 35a and the letter indicating the urea tank 31 are displayed in blue, and the downward arrow 35b and the letter specifying the fuel tank 32 are displayed in green. Further, the character indicating the urea tank 31 may be displayed in white inside the upward arrow 35a, and the character indicating the fuel tank 32 may be displayed in white inside the downward arrow 35b.

  Compared with the case where marks are displayed on the replenishing port 31a of the urea tank 31 and the replenishing port 32a of the fuel tank 32, the mark 35 is easily displayed in a large and prominent notation. As a result, the possibility that the worker erroneously puts the fuel into the refilling port 31a of the urea tank 31 or mistakenly places the urea water into the refilling port 32a of the fuel tank 32 is reduced.

[Lock mechanism]
As shown in FIGS. 7 and 8, the lock mechanism 40 is provided on the free end side of the reject processing device 12, that is, at the connection point between the threshing device 9 and the reject processing device 12 on the right side. Yes. In the present embodiment, two lock mechanisms 40 are provided side by side in the vertical direction. The first lock mechanism 40A is provided on the upper side, and the second lock mechanism 40B is provided on the lower side. Each of the first lock mechanism 40A and the second lock mechanism 40B is provided with a pin 41 as a first engagement portion and a hook 42 as a second engagement portion. In addition, an operation tool 44 that is connected to the upper hook 42 and can operate the first lock mechanism 40A and a holding mechanism 45 are provided. In addition, an interlocking link 43 is provided as a link mechanism that extends across the upper and lower hooks 42, 42.

  Each pin 41 of the first lock mechanism 40 </ b> A and the second lock mechanism 40 </ b> B is provided in the threshing device 9. That is, the mounting stays 46 of the upper and lower pins 41, 41 are bolted to the rear end portion of the right side wall 9R of the threshing apparatus 9, and the upper and lower pins 41, 41 are positioned from the mounting stay 46 to the gren tank 8 The mounting stay 46 is provided so as to protrude to the side.

  The hooks 42 of the first locking mechanism 40A and the second locking mechanism 40B are provided to the exclusion processing device 12. That is, a support 12A for supporting the hook 42 of the first lock mechanism 40A and a support 12B for supporting the hook 42 of the second lock mechanism 40B on the right side wall 12R (side wall) of the drainage processing device 12 Are fixedly welded side by side. The center of each of the support part 12A and the support part 12B is a swing axis Y that is lateral to the fuselage, and the upper and lower hooks 42 and 42 are supported so that they can swing around the swing axis Y. 12A and the support 12B.

  In each of the first lock mechanism 40A and the second lock mechanism 40B, the rocking axis Y is located rearward of the pin 41. That is, in each of the first lock mechanism 40A and the second lock mechanism 40B, the rocking axis Y and the pin 41 overlap in the front-rear direction.

  The hook 42 is formed with a U-shaped recess 42 a recessed from one end side to the other end side in the short direction. When the waste disposal apparatus 12 is in use, the recess 42a of the hook 42 is hooked on the pin 41, whereby the pin 41 and the hook 42 are engaged. The position of the hook 42 at this time is an engagement position where the pin 41 and the hook 42 can be engaged. When the position of the hook 42 is the engagement position, the longitudinal direction of the hook 42 is along the longitudinal direction of the machine body, and the opening of the recess 42a is located on the upper side of the machine body.

  When the hook 42 swings downward (clockwise in FIGS. 7 and 8) with the pin 41 and the hook 42 engaged, the recess 42 a is disengaged from the pin 41 as shown in FIG. And the hook 42 are switched to a non-engaged state where they are not engaged. The position of the hook 42 at this time is the retracted position.

  As shown in FIGS. 7 to 9, a cam 42C is formed at the free end of the hook 42 in the first locking mechanism 40A on the side where the recess 42a is located. That is, the longitudinal length of the hook 42 in the first locking mechanism 40A is longer than the longitudinal length of the hook 42 in the second locking mechanism 40B by the longitudinal length w shown in FIG. The cam 42C can contact the pin 41 in the first lock mechanism 40A.

  With the hook 42 in the engaged position, the cam 42C is inclined so that the position is lower toward the front of the machine. In other words, the cam 42 </ b> C is inclined so as to approach the swinging axis Y as the hook 42 is in the engagement position side.

  In a state where the pin 41 and the cam 42C are in contact with each other, when the displacement treating device 12 swings in the direction of use, the pressing force of the pin 41 acts on the cam 42C. The cam 42C is inclined so as to approach the swinging axis Y as the hook 42 engages, so that the pressing force of the pin 41 is a force in the forward direction of the machine and a force in the retraction position of the hook 42. Distributed to ,. As a result, the hook 42 swings to the retracted position side with slippage between the pin 41 and the cam 42C.

  As shown in FIG. 9, the cam 42 </ b> C is inclined so as to approach the side on which the threshing device 9 is located as approaching the front of the vehicle in plan view. Accordingly, even when the pin 41 is inclined with respect to the hook 42 due to the swinging of the waste disposal device 12, the tip of the cam 42C is easily brought into contact with the pin 41, and the cam 42C is not inclined in plan view. Compared to the above, the protruding length of the pin 41 can be kept short.

  As shown in FIGS. 7 and 8, in each of the first lock mechanism 40A and the second lock mechanism 40B, the hook 42 has a point on the side opposite to the side where the recess 42a is located across the swing axis Y. The connecting portion 42 b is provided on the Both ends of a rod-like interlocking link 43 are connected to respective connecting portions 42b of the first locking mechanism 40A and the second locking mechanism 40B so that the both ends of the interlocking link 43 can swing, and the interlocking link 43 is connected to the first locking mechanism 40A and the second locking mechanism. It vertically spans over the mechanism 40B.

  By this configuration, the hooks 42 and 42 of the first locking mechanism 40A and the second locking mechanism 40B are interlocked and linked to each other through the interlocking link 43. That is, when the hook 42 in one of the first lock mechanism 40A and the second lock mechanism 40B swings to the engagement position side, the hooks 42 in the other lock mechanisms 40 are also interlocked and engaged. Swing to Thereby, the pin 41 and the hook 42 in all the lock mechanisms 40 are switched from the non-engaged state to the engaged state. Even when the pin 41 and the hooks 42 are switched from the engaged state to the non-engaged state, all the hooks 42 interlock and swing to the retracted position.

  The operating tool 44 is provided to extend rearward from the hook 42 along the right side wall 12R of the drainage processing apparatus 12. The swing base end portion of the operation tool 44 is fixed by welding to the hook 42, and the operation tool 44 is supported by the right side wall 12 </ b> R of the waste disposal apparatus 12 via the hook 42. The operating tool 44 is formed of a circular metal rod in a sectional view, and is configured to be able to swing up and down with the support portion 12B as an axial center in conjunction with the swinging operation of the hook 42. The free end portion of the operation tool 44 is bent toward the lower side so as to be substantially orthogonal to a portion extending rearward from the hook 42 along the right side wall 12R to form a grip portion 44b. . Therefore, the operator can easily operate the operation tool 44 by operating the grip portion 44b. In addition, since the rear end portion of the operation tool 44 is located on the front side of the machine body from the rear end of the waste disposal apparatus 12, the operation tool 44 is configured to be compact and easy to operate. The free end portion of the operation tool 44 may not be substantially orthogonal to a portion extending rearward from the hook 42 along the right side wall 12R, and may be formed to be bent upward.

  When the operator operates the operation tool 44 in the vertical direction, the hooks 42 in the first lock mechanism 40A interlock and swing, and the hooks 42 in the second lock mechanism 40B interlock and pivot through the interlocking link 43. . When the operator operates the operating tool 44 upward, the hooks 42 and 42 swing to the retracted position side, and when the operator operates the operating tool 44 downward, the hooks 42 and 42 engage. Swing to the position side.

  When the waste disposal apparatus 12 is in use, when the operator operates the operation tool 44 downward and the respective hooks 42 and 42 swing to the engaged position, the first lock mechanism 40A and the second lock Each of the mechanisms 40B is in a position holding state in which the usage state of the exclusion processing device 12 is held. The vertical position of the operation tool 44 at this time is the lower limit position of the vertical swing range. When the operator operates the operation tool 44 downward, the respective hooks 42 and 42 swing to the retracted position side, and the respective pins 41 and hooks 42 are switched to the disengaged state. Thereby, the position holding state of each of the first lock mechanism 40A and the second lock mechanism 40B is released.

  The locking operation in the locking mechanism 40 will be described. First, when the worker presses the waste disposal device 12 in the direction of use and the waste treatment device 12 swings from the open state to the direction of use, the cam 42C of the hook 42 in the first lock mechanism 40A is pinned. 41 abuts. When the displacement treating device 12 further swings in the direction of use, the pressing force of the pin 41 acts on the cam 42C. The cam 42C is inclined so as to approach the swinging axis Y as the hook 42 engages, so that the pressing force of the pin 41 is a force in the forward direction of the machine and a force in the retraction position of the hook 42. Distributed to ,. Thereby, the hook 42 in the first lock mechanism 40A swings to the retracted position side with the slip of the pin 41 and the cam 42C. Further, the hook 42 in the second lock mechanism 40B is also interlocked and pivoted toward the retracted position via the interlocking link 43.

  When the waste disposal device 12 further swings in the direction of use and the pin 41 in the first lock mechanism 40A exceeds the peak between the recess 42a and the cam 42C, the first lock mechanism 40A and the second lock In each of the mechanisms 40B, the pin 41 and the recess 42a of the hook 42 are engaged, and the pin 41 and the hook 42 can be engaged. In this state, when the operator operates the operation tool 44 downward, the hook 42 and the hook 42 swing to the engagement position side. At the same time, the gap between the reject processing device 12 and the threshing device 9 is closed by the swinging of the reject processing device 12. Then, when the vertical position of the operation tool 44 reaches the lower limit of the swing range, the pin 41 and the hook 42 are engaged. Accordingly, the first lock mechanism 40A and the second lock mechanism 40B are in the position holding state.

[Holding mechanism]
The holding mechanism 45 is supported by the right side wall 12R of the drainage processing device 12 so as to be located in the vicinity of the grip portion 44b of the operation tool 44 in a state where the operation tool 44 is located at the lower limit of the swing range. As shown in FIG. 10, the holding mechanism 45 includes a stay 45A, a pivoting portion 45B, a pin 45C connecting the stay 45A and the pivoting portion 45B, a coil spring 45D, and a static spring receiving portion 45E. A moving side spring receiving portion 45F is provided.

  The stay 45A is a flat plate member formed in an L shape. One side 45Aa of the L shape is bolted to the right side wall 12R of the waste disposal apparatus 12, and the other side 45Ab of the L shape is directed toward the right side of the body. Extend. The stay 45A is attached to the right side wall 12R in a state where the longitudinal direction of the other side 45Ab is along the lateral direction of the body, and a U-shaped recess 45Ac that is recessed downward is formed on the upper side of the other side 45Ab. The width of the recess 45Ac in the left-right direction is formed to be larger than the cross-sectional diameter of the operation tool 44, thereby forming a recessed space S in which the operation tool 44 can enter the recess 45Ac. In a state where the operating tool 44 enters the recessed space S, the operating tool 44 is positioned at the lower limit of the swing range. The height in the vertical direction of the recess 45Ac is formed such that the operation tool 44 is not plastically deformed when the operation tool 44 is in contact with the bottom of the recess 45Ac.

  The rotating portion 45B has a hook portion 45Ba formed at one end in the longitudinal direction, and an operation portion 45Bb formed at the other end in the longitudinal direction. The stay 45A and the pivoting portion 45B are connected via the pin 45C at a position between the hook portion 45Ba and the operation portion 45Bb. The center of the pin 45C is the pivot axis Z, and the pivot portion 45B is configured to be pivotable about the pivot axis Z. The stay 45A and the pivoting portion 45B are coupled in a state where the hook portion 45Ba is positioned above the pin 45C and the operation portion 45Bb is positioned below the pin 45C.

  The stay 45A is provided with a static spring receiving portion 45E. Further, a recessed portion 45Bc is formed at a position corresponding to the static side spring receiving portion 45E in the rotating portion 45B, and when the rotating portion 45B rotates, the static side spring receiving portion 45E and the recessed portion 45Bc come into contact with each other. . That is, when the rotating part 45B rotates in the direction in which the hook part 45Ba is separated from the right side wall 12R, the upper part of the recessed part 45Bc and the static spring receiving part 45E come into contact with each other. Further, when the pivoting portion 45B pivots in the direction in which the hook portion 45Ba approaches the right side wall 12R, the lower portion of the recessed portion 45Bc abuts on the static side spring receiving portion 45E. Thereby, the rotation range of the rotation part 45B is restrict | limited.

  The hook portion 45Ba is formed by a cam 45Bd and a locking claw portion 45Be. In a state where the stay 45A and the pivoting portion 45B are connected, the cam 45Bd is inclined so that the position becomes lower as it is separated from the right side wall 12R. Further, the lower end portion of the cam 45Bd is located on the right side of the body of the operation tool 44 than the portion in contact with the cam 45Bd. When the operating tool 44 swings downward in a state where the operating tool 44 and the cam 45Bd are in contact with each other, the hook portion 45Ba approaches the right side wall 12R with the sliding of the operating tool 44 and the cam 45Bd. The pivoting portion 45B pivots. The width in the left-right direction of the locking claw 45Be is formed to be larger than the width in the left-right direction of the recess 45Ac.

  When the upper portion of the recessed portion 45Bc and the stationary spring receiving portion 45E come into contact with each other and the hook portion 45Ba is farthest from the right side wall 12R, the opening above the recessed space S, that is, the opening of the recessed portion 45Ac is closed by the locking claw portion 45Be. The recessed space S is surrounded by the recess 45Ac and the locking claw 45Be. Further, when the lower portion of the recessed portion 45Bc and the stationary spring receiving portion 45E come into contact with each other and the hook portion 45Ba is closest to the right side wall 12R, the opening of the recessed portion 45Ac is opened. Thus, the rotation part 45B is configured to be rotatable between a closed position where the opening of the recess 45Ac is closed by the locking claw part 45Be and an open position where the opening of the recess 45Ac is opened. Has been.

  A stationary side spring receiving portion 45E is provided on the stay 45A, and a moving side spring receiving portion 45F is provided on the rotating portion 45B. One end portion of the coil spring 45D is locked to the static side spring receiving portion 45E, and the other end portion of the coil spring 45D is locked to the moving side spring receiving portion 45F. As described above, the coil spring 45D is bridged over the static spring receiving portion 45E and the dynamic spring receiving portion 45F. The static spring receiving portion 45E is located on the right side of the machine than the pin 45C, and the moving spring receiving portion 45F is located on the left side of the machine than the pin 45C. Further, both the static spring receiving portion 45E and the dynamic spring receiving portion 45F are located above the pin 45C. In a state where the rotating portion 45B is in the closed position, the coil spring 45D is stretched and deformed by receiving a tensile force by the static side spring receiving portion 45E and the moving side spring receiving portion 45F. For this reason, a biasing force in the contraction direction acts on the coil spring 45D, and the pivoting portion 45B is biased to pivot toward the closed position.

  When the operator operates the operating tool 44 downward and the operating tool 44 swings downward in a state where the operating tool 44 and the cam 45Bd are in contact with each other, the pivoting portion 45B is an urging force of the coil spring 45D. Against the, to the open position side. When the operation tool 44 further swings downward and goes over the ridge between the cam 45Bd and the locking claw 45Be, the operation tool 44 enters the recessed space S, and the rotation portion 45B is a coil spring 45D. It is returned to the closed position by the biasing force. As a result, the operation tool 44 penetrates the recessed space S surrounded by the recess 45Ac and the locking claw 45Be. At this time, the operation tool 44 is located at the lower limit of the swing range, and the upward swing of the operation tool 44 is blocked by the hook portion 45Ba. Therefore, the holding mechanism 45 is in a state of holding the operating tool 44 in position, and can firmly hold the position holding state of the first lock mechanism 40A and the second lock mechanism 40B.

  When the operator operates the operating portion 45Bb in the direction away from the right side of the machine, ie, the right side wall 12R, the pivoting portion 45B pivots to the open position side against the biasing force of the coil spring 45D. Thus, the position holding state of the operation tool 44 of the holding mechanism 45 can be released, and the position holding state of the first lock mechanism 40A and the second lock mechanism 40B can be released.

  In the state where the holding mechanism 45 holds the operating tool 44 in position, the holding mechanism 45 may hold the position in a state where the operating tool 44 is elastically deformed. That is, in a state where the operator operates the operation tool 44 in the downward direction, the pin 41 and the hook in the first lock mechanism 40A and the second lock mechanism 40B, respectively, immediately before the operation tool 44 enters the recessed space S. 42 may be engaged. At this time, when the operator operates the operation tool 44 downward, the pin 41 does not swing, but the operation tool 44 enters the recessed space S only by elastic deformation of the operation tool 44, and the holding mechanism 45 moves the operation tool 44. Position. In this state, when the operator operates the operation unit 45Bb to release the position holding the operation tool 44 of the holding mechanism 45, the operation tool 44 is moved above the recessed space S by the restoring force of the operation tool 44. Fall off. With this configuration, it is not necessary for the operator to operate the operation unit 45Bb with one hand while operating the operation tool 44 with the other hand, and the first lock mechanism 40A and the second lock mechanism 40B can be operated with only one hand. The position holding state can be released.

(Side cover)
The displacement processing device 12 swings around the swing axis X at the left end of the machine, and the side cover 19C and the side cover 19E are positioned on the left side of the machine from the swing axis X. Therefore, when the exclusion processing device 12 is in the open state, the positions of the exclusion treatment device 12 and the positions of the side surface cover 19C and the side surface cover 19E overlap. For this reason, in order to open the discharge processing apparatus 12 in the open state, it is necessary to remove the side cover 19C and the side cover 19E from the airframe.

  As shown in FIGS. 11 and 13, the threshing frame 50 is provided on the top of the threshing device 9 in a state extending in the front-rear direction of the threshing device 9, from the threshing frame 50 toward the left side of the machine, of the side cover 19C. Two stays 51, 51 for supporting the upper part are provided. The two stays 51, 51 are provided at a location corresponding to the front portion of the side cover 19C and a location corresponding to the rear portion of the side cover 19C, and the support pipe 52 extends in the front-rear direction across the two stays 51, 51. Cross along the In addition, an engaging portion 53 that engages with the buckle 19F of the side cover 19C is provided in a state of projecting from the left side portion of the dust cover 21 to the left side of the machine body.

  The side cover 19C is provided with a cover hook 54 for engaging with the support pipe 52. The cover hook 54 is provided on the inner side of the airframe, that is, on the right side of the airframe, than the side surface portion 19Ca of the side surface cover 19C. A rib 19Cd made of sheet metal and formed in a V-shape in the front-rear direction as viewed in the front-rear direction is fixed by welding to the upper surface 19Cb of the side cover 19C. A cover hook 54 is provided at a position facing the support pipe 52 of the rib 19Cd, and the longitudinal direction of the cover hook 54 is along the longitudinal direction of the airframe.

  U-shaped recesses 54a that are recessed upward are formed at both front and rear ends of the cover hook 54, and the front and rear recesses 54a and 54a are hooked on the support pipe 52, whereby the cover hook 54, the support pipe 52, Engage. In a state where the buckle 19F of the side cover 19C and the engaging portion 53 are not engaged, the side cover 19C can swing to the outside of the machine body with the support pipe 52 as an axis. The operator releases the engagement between the buckle 19F and the engagement portion 53 and slides the side cover 19C upward with respect to the support pipe 52, whereby the cover hook 54 is disengaged from the support pipe 52, and the side cover 19C is released. Can be removed from the machine. In addition, the operator slides the side cover 19C downward with respect to the support pipe 52, and hooks the front and rear concave portions 54a and 54a from above with the support pipe 52, and the buckle 19F of the side cover 19C and the engaging portion 53 The side cover 19C can be mounted by engaging the.

  As shown in FIG. 13, a first guide portion 54 b and a second guide portion 54 c are formed on each of the front and rear ends of the cover hook 54. The second guide portion 54c is located more inward than the first guide portion 54b. The first guide portion 54b and the second guide portion 54c are formed in a shape that is continuous with the concave portion 54a, and are configured to be slidable with respect to the support pipe 52 in the attaching operation or removing operation of the side cover 19C. The first guide portion 54b and the second guide portion 54c are formed in a straight line in the front-rear direction. In addition, the first guide portion 54b and the second guide portion 54c are separated such that the distance between the first guide portion 54b and the second guide portion 54c is the smallest at the position closest to the recess 54a and increases as the distance from the recess 54a increases. Is being formed. That is, the separation distance between the first guide portion 54b and the second guide portion 54c is widened toward the end with the portion connected to the recess 54a as the base end. The guide length of the second guide portion 54c is set to be slightly longer than the necessary guide length. Furthermore, the second guide portion 54c is formed so as to be inclined toward the inside of the machine toward the lower side. For this reason, when the worker performs the work of attaching or removing the side cover 19C, the second guide part 54c is compared with the case where the distance between the first guide part 54b and the second guide part 54c does not become wider. The hooking with the support pipe 52 becomes smooth, and the mounting operation or removing operation of the side cover 19C becomes smooth.

  As shown in FIG. 11, in the state where the side cover 19C is attached to the airframe, the side cover 19C is supported at three points by both ends of the cover hook 54 and the buckle 19F. The front lower portion of the side cover 19C is not supported by the airframe, and is a portion that is easily vibrated. For this reason, as shown in FIGS. 11 to 13, the front lower portion of the side cover 19C is pressed by the contact rubber 55, and the vibration is suppressed. The abutment rubber 55 is supported on the left side wall 9 L of the threshing apparatus 9 via the projecting bracket 56, and the abutting rubber 55 is provided at the projecting tip of the projecting bracket 56. The stay 57 is welded and fixed to the left side wall 9L, and a bolt is inserted into the long hole 56a formed in the projecting proximal end of the projecting bracket 56, and the projecting bracket 56 and the stay 57 are bolted. The long hole 56a is configured so that the protruding amount of the protruding bracket 56 to the outside of the machine body can be adjusted.

  The side cover 19E located below the side cover 19C is provided with two buckles 19F and 19F as shown in FIG. Although not shown, an engagement member (not shown) engageable with a support (not shown) of the threshing device 9 is provided at a position directly below the buckles 19F, 19F on the inside of the side cover 19E. Is provided. The side cover 19E is supported at four points by the two buckles 19F and 19F and the two engagement members. The rear of the side cover 19E is easily vibrated because there is no portion supported by the airframe at the rear of the side cover 19E. For this reason, the rear portion of the side cover 19E is pressed by the contact rubber 60 to suppress the vibration.

  The rear end of the side cover 19E is formed to be bent in an L-shape toward the inside of the machine in plan view, and the bent tip extending out from the bending point of the side cover 19E to the inside of the machine is an exhaust treatment device Approach 12 Therefore, as shown in FIGS. 11 and 12, the stay 61 is welded and fixed to the waste disposal apparatus 12 at a position of the waste disposal apparatus 12 that faces the bent tip at the rear end of the side cover 19E. Has been. The stay 61 protrudes to the outside of the machine body, and a contact rubber 60 is provided at the protruding tip end of the stay 61, and the contact rubber 60 presses the bent tip end portion at the rear end of the side cover 19E in the outside direction.

[Another embodiment]
The present invention is not limited to the configuration exemplified in the above-described embodiment, and hereinafter, another representative embodiment of the present invention will be illustrated.

(1) In the embodiment described above, the hinge 28 is provided on the left side of the discharge treating device 12 and the lock mechanism 40 is provided on the right side of the discharge treating device 12, but the invention is not limited to the embodiment described above . For example, if the waste disposal device 12 does not interfere with the Glen tank 8, the urea tank 31, the fuel tank 32, etc., the hinge 28 is provided on the right side of the waste treatment device 12, and the waste treatment device 12 is located on the right side of the machine body. The structure which can rock | fluctuate via the hinge 28 of this may be sufficient. At this time, the lock mechanism 40 may be provided on the left side of the exclusion processing device 12. Furthermore, the operation tool 44 and the holding mechanism 45 may be configured to be supported by the left side wall of the drainage processing apparatus 12.

(2) In the embodiment described above, the lock mechanism 40 is constituted by two, the first lock mechanism 40A and the second lock mechanism 40B, but the number of the lock mechanisms 40 is not limited to two. , One, three, four, etc. can be appropriately changed.

(3) In the embodiment described above, the first engagement portion is the pin 41, and the second engagement portion is the hook 42, but the present invention is not limited to the embodiment described above. The two engaging portions may be constituted by a buckle or a magnet.

(4) In the embodiment described above, the pin 41 is provided on the threshing device 9 and the hook 42 is provided on the eliminator 12, but the pin 41 is provided on the eliminator 12 and the hook 42 is for threshing The configuration provided in the device 9 may be employed. At this time, the operation tool 44 may operate the pin 41, and the pin 41 may be configured to be slidable up and down with respect to the discharge processing apparatus 12.

(5) The operating tool 44 in the embodiment described above is configured to be able to swing up and down, but is not limited to the embodiment described above. For example, the operating tool 44 may be a handle body that rotates about the longitudinal direction, and the hook 42 swings to the engagement position side or the retracted position side when the operating tool 44 rotates as a handle. There may be.

(6) In the holding mechanism 45 described in the above embodiment, the locking claw 45Be is configured to be able to close the opening of the recess 45Ac, but the locking claw 45Be is configured to open the recess 45Ac And the opening of the recess 45Ac may be partially closed. That is, if the operation tool 44 does not come off from the recess 45Ac in the holding mechanism 45, the degree to which the locking claw 45Be closes the opening of the recess 45Ac can be changed as appropriate.

(7) In the above-described embodiment, the hook 42 is configured to be swingable around the swing axis Y, but is not limited to the above-described embodiment. For example, the hook 42 may be configured to slide in the front-rear direction or the up-down direction with respect to the right side wall 12R. At this time, the hook 42 may be biased to engage with the pin 41. Moreover, the structure in which the rotation part 45B in the holding mechanism 45 slides with respect to the other side 45Ab of the stay 45A and the opening and closing of the recess 45Ac is performed.

(8) The operation tool 44 is not limited to the first lock mechanism 40A, and may be provided to the second lock mechanism 40B. Further, the interlocking link 43 may not be provided, and a plurality of operation tools 44 may be provided in each of the first lock mechanism 40A and the second lock mechanism 40B. In this state, a plurality of holding mechanisms 45 may be provided in each of the first lock mechanism 40A and the second lock mechanism 40B. That is, a plurality of holding mechanisms 45 may be provided.

(9) In the embodiment described above, the cam 42C is provided in the first lock mechanism 40A, but the cam 42C is not limited to the first lock mechanism 40A, and may be provided in the second lock mechanism 40B. Further, the cam 42C may be configured to be provided to either one or both of the first locking mechanism 40A and the second locking mechanism 40B. That is, a plurality of cams 42C may be provided.

  The present invention is applicable not only to ordinary combine but also to self-contained combine.

8: Glen tank 9: Threshing device 12: Waste treatment device 12R: Right side wall (side wall)
40: Lock mechanism 40A: First lock mechanism 40B: Second lock mechanism 41: Pin (first engagement portion)
42: hook (second engaging portion)
43: Linked link (link mechanism)
44: operation tool 44b: grip 45: holding mechanism

Claims (5)

A threshing device for threshing the harvested cereal meal;
It is connected to the rear end of the threshing device, shreds the shed discharged from the threshing device, and is supported rotatably around a longitudinal axis at the rear end to close the rear end A discharge processing device capable of switching between a use state in which the shredding process can be performed and an open state in which the rear end portion is opened to the rear of the machine;
A locking mechanism capable of holding the waste disposal apparatus in the use state, and
The lock mechanism is provided with a first engagement portion provided in the threshing device, and a second engagement portion provided in the rejection processing device and engageable with the first engagement portion,
By operating one or both of the first engagement portion and the second engagement portion, the first engagement portion and the second engagement portion can be switched between an engaged state and a non-engaged state. An operation tool;
And a holding mechanism capable of holding the operation tool in the engaged state. A glen tank for storing the grains that have been threshed by the threshing device in a state spanning the side of the threshing device and the side of the waste treatment device is provided,
The lock mechanism is disposed between the waste disposal device and the Glen tank,
The operation tool extends from the second engagement portion toward the rear of the machine body, and is supported by the exclusion processing device in a state where the second engagement portion can be operated.
The combine according to claim 1, wherein the holding mechanism is supported by the waste disposal apparatus. The operation tool is extended to a rear end of the waste disposal device along a side wall of the waste treatment device,
The combine according to claim 2, wherein the holding mechanism is supported by the side wall. A grip portion is provided at the rear end of the operation tool,
The combine according to any one of claims 1 to 3 in which said holding mechanism is provided near said grip part. A plurality of the lock mechanisms are provided in a line up and down;
A link mechanism is provided so as to extend across the plurality of lock mechanisms, and interlocks the plurality of lock mechanisms.
The said operation tool is connected with the locking mechanism of the uppermost end among the said some locking mechanisms, and it is comprised so that the locking mechanism of the said uppermost end may be operated. Combine.

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