JP3354058B2 - Combine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of a combine in which a cover body for covering a grain transport pipe is provided at the rear of a grain tank rotatable around a grain transport pipe as a fulcrum. Things.

[0002]

2. Description of the Related Art In general, this type of combine includes
At the back of the grain tank where the grains are stored, a grain transport pipe for transporting the grains in the tank to the outside of the machine is erected, and the grain tank is mounted around the grain transport pipe as a fulcrum. It can be pivoted outward, and at the rear of the grain tank,
There is an openable / closable cover that covers the outside of the grain transport pipe, but in this case, turning the grain tank with the cover closed may possibly deform the cover. Therefore, it is desirable to automatically open the cover in conjunction with the rotation of the grain tank.

[0003]

Therefore, the cover body is constantly urged to the open side, and the cover body is normally engaged with the fixing member from the rear to lock the opening operation of the cover body. A device provided with an open lock member for releasing the engagement with the fixed member in accordance with the rearward displacement of the cover body at the time of rotation has already been proposed, but conventionally, the open lock member is provided with an engagement hole. Since the plate-shaped member is attached to a rear plate portion extending inward from the rear end of the side plate portion of the cover body and engaged with the pin-shaped fixing member from the rear, the engagement position is The cover body is deformed because there is a disadvantage that it is easily separated from the opening / closing fulcrum (rotation fulcrum) of the body and is easily affected by mounting errors and the like, and the engagement may not be easily released due to the frictional resistance between the pin and the engagement hole. There was a possibility.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in order to provide a combine which can solve these problems in view of the above-mentioned circumstances, and is provided behind a grain tank. A combine configured so that the outer side of the erected grain transport pipe is covered by a side plate of a cover body that is openably and closably provided at the rear of the grain tank .
In the cover body, the grain tank has a grain conveying pipe.
When pivoted outward from the fuselage as a fulcrum, it is integrated with the pipe.
In the vertical direction on the front end side of the side plate portion
It is configured to be freely openable and closable with the support shaft facing
It is assumed that the urging force of the
Engaging the side plate portion of the over body, normally locks the opening operation of the engaging the cover body from the rear to the fixing member, at the time of the tank turning you release the engagement between the fixed member with the rear displacement of the cover body It is a combine provided with a hook-shaped member that can be removed. In other words, since the open lock member is attached to the side plate portion near the opening / closing fulcrum of the cover body, the influence of mounting errors and the like can be reduced as much as possible, and since the open lock member is formed in a hook shape, The engagement is easily released with the rotation of the tank, and the cover body can be smoothly opened.

The above-mentioned hook-like member is attached to the side plate of the cover so as to be freely displaceable in the longitudinal direction, and at the same time, the hook-like member is urged toward a front position where it engages with the fixing member. An inclined guide portion is formed at the distal end to contact the fixing member and displace the hook-shaped member rearward when the cover body is closed, and the hook-shaped member is automatically returned to the engaged state at the fully closed position. Things. That is, when the cover is closed, the hook-shaped member automatically returns to the engaged state, so that the engagement operation of the hook-shaped member is not required and the operability can be improved.

[0006]

Next, one embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes a combine, and the combine 1 includes a pre-processing unit 2 for cutting stem culms, a threshing unit 3 for threshing a cut stem culm and selecting a kernel, and storing sorted kernels. A grain tank 4, a post-processing unit 5 for discharging threshed culms, a crawler-type traveling unit 6, etc. The threshing unit 3 and the grain tank 4
Are arranged in a distributed manner on the left and right sides of the aircraft.

The grains stored in the grain tank 4 are fixed to a fixed pipe (not shown) fixed at the lower end of the rear face of the grain tank 4 and a vertical pipe rotatably connected to the fixed pipe. The oil is discharged outside the machine via a pipe 7 (grain transport pipe) and a discharge pipe 8 which is rotatably connected to the upper end of the vertical pipe 7 and is swingably connected to the vertical direction. ing. That is, at the bottom of the grain tank 4, a horizontal spiral transport body (not shown) facing the front-rear direction is arranged, and the horizontal spiral transport body transports the kernel transported to the fixed pipe to the vertical pipe 7 and the vertical pipe 7. The spiral conveying body provided inside the discharge pipe 8 is configured to take over. A fixed pipe fixed to the lower end of the rear surface of the grain tank 4 is fixed to the machine frame via a rotating support shaft projecting downward. While being rotatably supported, a boss member 9 fixedly provided on the upper rear surface of the grain tank 4 is rotatably supported by the vertical pipe 7, so that the main body side of the threshing unit 3 is maintained. In such a case, the grain tank 4 obstructing maintenance can be retracted and rotated outward from the machine body with the vertical pipe 7 standing upright behind the tank as a fulcrum.

[0010] Reference numeral 10 denotes a turning motor assembly disposed inside the vertical pipe 7.
Comprises a swing motor 11 that can be driven forward and reverse and a speed reduction box 12 that reduces the motor output.
Since the second output gear 13 meshes with a ring gear 14 fixed to the outer peripheral surface of the vertical pipe 7, the vertical pipe 7 and the discharge pipe 8 are integrally swung based on forward / reverse driving of the swing motor 11. You can make it.

Reference numeral 15 denotes a pipe cover (cover body) attached to the right end of the rear surface of the grain tank 4. The pipe cover 15 includes a side plate portion 15a that covers a lower outer side of the vertical pipe 7, and a side plate portion 15a. A rear plate 15b extends inward from a rear end of the vertical pipe 7 and covers a lower rear portion of the vertical pipe 7. The rear plate 15b is formed in a flat L-shape, but is fixed to the front end of the side plate 15a. The pair of cover brackets 16
The grain tank 4 is rotatably supported by a second mounting plate 18 fixedly mounted on a rear surface of the grain tank 4 via a first mounting plate 17 via a support shaft 19 which is oriented vertically. In other words, the pipe cover 15 can be turned into a closed position that covers the vertical pipe 7 and an open position in which the pipe cover 15 is turned outward with the rear portion of the grain tank 4 as a fulcrum. At the fulcrum portion, an ammunition 20 for constantly urging the pipe cover 15 to the open side is provided.

On the other hand, reference numeral 21 denotes a support frame which stands upright behind the vertical pipe 7, and an engaging piece 23 (fixing member) is integrally attached to the support frame 21 via a bracket 22. However, the engagement piece 23 is arranged at a position spaced apart from the inner side surface of the side plate portion 15a by a predetermined distance in a vertical direction.

An open lock device 24 is provided on the side plate portion 15a of the pipe cover 15. The open lock device 24 is hooked on a resin case 25 via a fulcrum protrusion 27c which faces in the vertical direction. 27 (hook-like member) is assembled so that it can swing back and forth.
7 protrudes from the inner surface side of the side plate portion 15a through the through hole 25a, while the base end portion of the hook 27 located on the outer surface side of the side plate portion 15a is provided for swinging the hook 27. The operation lever 27a is formed integrally, and the hook 27 is urged forward (engagement direction) by a plate spring portion 25b formed integrally with the case 25.
The hook 27 normally engages with the engaging piece 23 from behind, and locks the opening operation of the pipe cover 15 by the bullet 20 while swinging backward when the operation lever 27a is operated. To release the engagement with the engagement piece 23 to allow the pipe cover 15 to be opened. However, when the grain tank 4 is rotated outward with respect to the vertical pipe 7 as a fulcrum, Since the pipe cover 15 is displaced backward integrally with the grain tank 4, the hook 27
Is disengaged from the engagement piece 23, and the pipe cover 15 is automatically opened.

An inclined guide 27b is formed at the tip of the hook 27.
When the pipe cover 15 is closed, the locking pieces 23
When the pipe cover 15 is pushed to the fully closed position in order to swing the hook 27 backward by contacting the hook 27, the hook 27 is automatically engaged with the locking piece 23 by the urging force of the leaf spring portion 25b. Has become.

In the structure constructed as described above, a grain tank 4 which is rotatable around a vertical pipe 7 is provided at a rear portion thereof.
A pipe cover 15 for covering the outside of the vertical pipe 7 is provided so as to be openable and closable, and the pipe cover 15 is normally engaged with the engaging piece 23 from the rear to lock the opening operation of the pipe cover 15. When the lever 27a is operated, the engagement with the engagement piece 23 is released to release the pipe cover 1.
5 is permitted, and when the grain tank 4 is pivoted outward with the vertical pipe 7 as a fulcrum, the grain tank 4 is displaced rearward integrally with the pipe cover 15 and the pipe cover 15 is moved. Release lock device 2 that automatically opens
4, the release lock device 24 includes:
The pipe cover 15 is provided on the side plate portion 15 a near the pivot of the pipe cover 15 and locks the opening operation of the pipe cover 15 based on the engagement of the hook 27.
It is possible to reduce as much as possible the possibility of inconvenience in engagement with the locking piece 23 due to the processing error and the mounting error of
Moreover, since the engagement between the hook 27 and the engagement piece 23 can be released more smoothly than the engagement between the pin and the engagement hole, the pipe cover is interlocked with the rotation operation of the grain tank 4. 15 can be reliably opened.

An inclined guide 27b is formed at the distal end of the hook 27 so as to come into contact with the locking piece 23 and swing the hook 27 backward when the pipe cover 15 is closed. By simply pushing the pipe cover 15 to the fully closed position, the hook 27 can be returned to the engaged state, and as a result, the operation of the operation lever 27a becomes unnecessary and the operability at the time of closing can be improved.

[Brief description of the drawings]

FIG. 1 is a plan view of a combine.

FIG. 2 is a plan view of a main part showing a grain tank and a pipe cover.

FIG. 3 is a side view of a pipe cover.

FIG. 4 is a plan view of the same.

FIG. 5 is a sectional view of the release lock device.

FIG. 6 is a plan sectional view of a main part showing a conventional open lock device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Combine 4 Grain tank 7 Vertical pipe 15 Pipe cover 15a Side plate part 15b Rear plate part 23 Locking piece 24 Release lock device 25b Plate spring part 27 Hook 27a Operation lever 27b Inclined guide

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A 3-24831 (JP, U) JP-A 6-41436 (JP, U) JP-A 2-113936 (JP, U) JP-A 3- 92945 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) A01F 12/46-12/60

Claims (2)

(57) [Claims] 1. A controller configured to cover the outside of a grain transport pipe erected behind a grain tank with a side plate portion of a cover body that is openably and closably provided at the rear of the grain tank.
In the vine, the cover body may be configured such that a grain tank carries grain.
When the pipe is pivoted outward with respect to the feed pipe
And is displaced rearward integrally with the
It can be opened and closed freely using a vertical support shaft as a fulcrum.
And further urged to the open side by the force of the ammunition.
On the other hand, the cover is always engaged with the fixing member from the rear to lock the opening operation of the cover with the side plate of the cover, and the engagement with the fixing member is released as the cover is displaced rearward when the tank rotates. Konbai <br/> emissions having a disengagement operably hook-like member you. 2. The hook-shaped member according to claim 1, which is attached to the side plate of the cover body so as to be movable in the front-rear direction, and urges the hook-shaped member toward a front position where the hook-shaped member is engaged with the fixing member. At the tip of the member, an inclined guide portion is formed at the end of the cover to contact the fixing member and displace the hook-shaped member backward when the cover body is closed, and the hook-shaped member is automatically engaged at the fully closed position. Combine to return.