JP3142211B2 - Dust proof cover in combine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust cover for a combine.

[0002]

2. Description of the Related Art Conventionally, a dust-proof cover for dust-proofing a driver's seat is attached to a portion for transferring grain to threshing on a rear end portion of a pre-processing unit of a combine. As shown in Japanese Patent No. 57323 and Japanese Utility Model Publication No. 59-3699, it was attached to the threshing unit cover side or attached to the upper part of the U-shaped transporting unit on the pretreatment unit side.

[0003]

However, when a dustproof cover is attached to the threshing section cover, the opening / closing operation load becomes excessive when the threshing section cover is opened and closed, and the operating lever and the like protrude high toward the driver's seat. Had the disadvantage of touching them.

On the other hand, in the case of mounting on the preprocessing unit side, U
The mounting itself is unstable due to the unstable shape of the mounting location due to the character rod mounting.In addition, there is a gap at the rear end of the cover due to the restriction of the vertical movement of the preprocessing part, There were drawbacks such as high vibration noise.

[0005]

The features of the dustproof cover in the combine of the present invention for solving the above problems are as follows.
A dustproof cover 12 is provided above the rear part of the pretreatment device 11 for transferring and transferring the harvested grain culm to the threshing unit 4 and at the side of the driver's seat 7.
A support frame 18 is fixed to the fuselage side of the driver's seat 7 and the support frame 18 is provided.
The support 16 pivotally supports the rear part so that the front end can be opened and closed up and down, and the support frame 18 is erected on the body 1 side.
And a bracket 23 fixed to the support frame 18 side
It is a point that it is attached detachably .

Secondly , below the driver's seat 7 side of the support frame 18
A working window 43 consisting of a release part communicating with the inside of the cover
Open and close the work window 43 on the cover sheet 44
The end is attached to the support frame 18 .

[0007]

Since the cover 12 is attached to the machine 1 side of the driver's seat 7 via the support frame 18 for attaching the cover 12, the cover 12 is stably attached irrespective of the opening and closing of the threshing section cover 4. Side support 16 and support frame 18
It can be attached and detached as needed by the bracket 23 on the side. Further, the work window 43 enables removal of grain stalks and grass in the cover 12 from the driver's seat 7 side and other maintenance work, and the cover sheet 44 can prevent dust during the work.

[0008]

1 shows an embodiment of the present invention. A threshing unit 6 having a threshing unit cover 4 accommodating a handling drum 3 is provided on the left side on the front end of a fuselage frame 2 of a combine body 1 and on the right side. A driver's seat 7 is provided.

Further, in front of the machine body 1, a pre-processing device 11 provided at the rear end with a lifting transporting body 9 for lifting and transporting the harvested grain culm to the feed chain 8 so as to be vertically movable is mounted. I have. In addition, above the grain culm transfer section 13 from the rear end of the lifting transfer body 9 to the threshing section 6, beside the driver's seat 7 and in front of the threshing section 6, the transfer section 13 is moved from above. A dustproof cover 12 made of a transparent resin material and having a rectangular shape in plan view is attached.

Next, the mounting structure of the cover 12 will be described. The fixed rod 1 is mounted on the lower part of the driver's seat 7 on the left side (uncut side) in the front-rear direction with respect to the body frame 2.
The base 4 of the support 16 is fixedly attached to the threshing section cover 4 at a position near the front of the threshing section 4 in a substantially upright state. A mounting member 17 having a channel shape in plan view is fixed to the upper end of the support 16 as shown in the figure.

The support frame 18 is attached so as to extend substantially horizontally from the upper end of the support column 16 to the left side.
A support frame in which arms 19 and 21 having a gate-shaped cross section protrude forward on both left and right sides, and a right end of the support frame 18 (an end on a cut ground side) is provided with a bolt 22 with a corner surface of the mounting member 17. A bracket 23 having an angled cross section in a plan view, which is removably attached along, is fixed in the vertical direction. By mounting the bracket 23 to the mounting member 17, the support frame 18 is supported in the lateral direction along the front end of the threshing unit cover 4 at the rear end position of the inherited transport portion 13 in a cantilever manner. You.

A mounting plate 24 having a plate having an angled cross section is detachably mounted on the arms 19 and 21 by bolts 27 in two or more mounting holes a in the front and rear. On the other hand, a plate 29 attached to the front end of a mounting stay 28 formed of a pipe or the like in the front-rear direction and a plate-like stay holder 31 for fixing the rear end of each of the covers 12 are provided at both ends of the inner surface of the cover 12 through mounting holes b. It is detachably attached by a bolt 32.

The left and right stay holders 31, 31
Are connected and fixed by a left-right axial connecting rod 33. Inside each of the stay holders 31 of the connecting rod 33, pipe-shaped base ends of front and rear turning arms 34, 34 are rotatable. A rod-shaped stopper rod 36 is integrally fixed to the front and rear ends of the rotating arms 34, 34 in the left-right direction, and a crank-shaped handle 37 is attached or formed to the right end of the stopper rod 36. Have been.

Further, at the rear end of the outer surface of the stay holder 31, a fulcrum shaft 38 serving as a fulcrum of rotation of the cover 12 is protruded, and both ends of the above-described stopper rod 36 project forward of the shaft. . On the other hand, near the rear ends of the rising pieces (side pieces) of the mounting plates 24, 24, there are provided shaft holes c for inserting and supporting the fulcrum shaft 38, respectively.
Further, a notch-shaped concave portion 39 is provided at the upper end of the front (middle of the rising piece) to accommodate the left and right protruding ends of the stopper rod 36 when the cover 12 is closed.

Further, a stopper guide 41 is formed in a front half position of each of the mounting plates 24. The stopper guide 41 comprises a gate-shaped elongated hole in the front-rear direction having downward notch-shaped engaging portions at both front and rear ends.
The stopper rod 41 is inserted and accommodated in the stopper guide 41 so as to be movable back and forth. Reference numeral 42 denotes a spring extending between the base end of the right rotation arm 34 and the front end of the right mounting stay 28. The spring 42 rotates the rotation arm 34 in the falling direction when the cover 12 is closed, and a stopper rod 36. Of the stopper guide 41 so as to be engaged with the recess at the front end thereof.

With the above mechanism, the cover 12 is supported by the support frame 18 together with the mounting stay 28 and the stay holder 31 so as to be able to open and close by rotating the front end side up and down on a fulcrum shaft 38 as a fulcrum. The stopper rod 36 is actuated by a spring 42 so that the stopper guide 4
1 When the cover 12 is opened, the stopper rod 36 is pulled out of the front end recess by the action of the spring 42 and is housed in the rear end side recess when the cover 12 is opened.
Lock with the cover 12 open. The handle 37 is operated to engage and disengage the stopper rod 36 during these operations.

Further, below the cover 12 on the driver's seat 7 side, from the lower side of the right arm 21 of the support frame 18, even when the cover is closed, it is possible to remove the clogging of straw and grass inside the whole processing section. Working window 43 is formed,
If this state is maintained, dust will be discharged to the outside during the work, so a cover sheet 44 made of a transparent resin sheet such as vinyl for closing the work window 43 is attached with the upper end fixed. That is, the upper end of the cover sheet 44 is
It is sandwiched between the upper surface and the mounting plate 24, is bolted in the hole a, and the lower end is free,
By turning up the cover sheet 44, manual work inside can be performed.

Further, the upper end of the cover sheet 46 similar to the above is also provided on the front end side surface of the cover 12 on the driver's seat 7 side.
The cover sheet 44 is detachably attached to the cover sheet 44 so that the rear end thereof overlaps with the cover sheet 44. The dustproof function is provided in the same manner as described above.

Reference numeral 48 denotes a guide cover having a guide hole 51 formed on the upper surface for inserting the combine operating lever 49 and the like, and is provided on the left side of the driver's seat.

[0020]

According to the present invention configured as described above, the operation load for opening and closing the side surface of the threshing unit can be reduced as compared with the case where the cover is attached to the threshing unit case (cylinder) side. When opening and closing together with the threshing section cover, even if there are obstacles such as levers on the driver's seat side, inconvenience such as contact with these is prevented. The removable cover makes it easy to perform internal maintenance and assembly during the manufacturing process.In addition, the work window and cover sheet are provided on the driver's seat side to allow internal work from the work window as necessary. This makes it possible to prevent dust from working windows.

[Brief description of the drawings]

FIG. 1 is an overall view of a combine.

FIG. 2 is a perspective view of a mounting structure of a dustproof cover.

FIG. 3 is a side view of a mounting structure of a dustproof cover.

FIG. 4 is a plan view of a mounting structure of a dustproof cover.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Body 6 Threshing part 7 Driver's seat 11 Pretreatment apparatus 12 Dustproof cover 16 Prop 18 Support frame 23 Bracket 43 Work window 44 Cover sheet

Claims (2)

(57) [Claims] A preprocessing device (11) is mounted on a body (1) in front of a threshing unit (4) so as to be able to move up and down and swingably, and a harvesting culm is conveyed to a threshing unit (4). A dustproof cover (12) is attached to the driver's seat (7) at a position above and behind the rear part of (11), and is fixed to the fuselage side of the driver's seat (7). The rear portion is pivotally supported so that the front end can be opened and closed up and down with respect to the support frame (18).
The support (16) and the support frame (1) standing upright on the body (1) side
8) Detachable via bracket (23) fixed to the side
Dust proof cover on combine which is attached to. 2. A work window (43) comprising a release portion communicating with the inside of the cover is opened at a lower side of the support frame (18) on the driver's seat (7) side, and a cover sheet for closing the work window (43). The dustproof cover for a combine according to claim 1, wherein an upper end of the (44) is attached to the support frame (18).