JPS6345171Y2 - - Google Patents

Description

[Detailed description of the invention] Conventionally, it has already been proposed to provide a weed pulling frame separate from the grain culm pulling frame in a combine harvester to raise and pluck the lodging grain culms, but this weed pulling frame is When harvesting grain culms, the trigger claws may hit the ears of the grain culms and cause them to shed grain.

When reaping and threshing an upright grain culm to eliminate such defects, if you try to move back the guide rail so that the raising claw of the weed-pulling frame does not protrude, the guide rail will be inside the weed-pulling frame. Adjusting the forward and backward movement was extremely troublesome.

The present invention uses a mounting means for mounting the guide rail on the weed pulling frame in combination with the mounting of the guide rod, and uses the guide rod to adjust the advance and retreat of the guide rail from the outside very easily and quickly. The purpose of the present invention is to provide a weed pulling device for use in the present invention.

The embodiment shown in the drawings will be explained below.1
is a threshing device installed on a running machine platform, and a pair of horizontal grain culm lifting frames 2, 2 on the left and right are provided at the front part of the threshing device, and a sliding member protrudes forward from the machine frame. Grass division bodies 4a and 4b are attached to the front portions of 3 and 3.

Reference numeral 5 denotes a vertically-hanging grass-cutting-drawing frame which is installed immediately after the small grass-cutting body 4b on the uncut land side and along the outside of the grain culm-drawing frame 2 on that side, and has a large number of lifting claws 6... The chain 7, whose base part is pivotally connected by a pin so as to be freely raised and lowered, is stretched by an upper driving sprocket 8 and a lower driven sprocket 9, and its front middle part is locked to an idler wheel 10, and the idler The guide rail 11 provided between the wheel 10 and the driven sprocket 9 can be adjusted forward or backward by adjustment screws 13, 13 inserted into long holes 12, 12 bored in both side plates of the weed pulling frame 5. It is screwed on.

Further, the upper and lower parts of the pair of left and right guide rods 14 provided on both sides of the weed pulling frame 5 are provided with fittings 15 and 1.
5 is fixed, and these fittings 15, 15 are fitted onto the adjustment screws 13, 13 and tightened.

Reference numeral 16 denotes a cutout window provided on the outside of the upper part of the weed pulling frame 5, and a cleaning lid 17 is attached to the outer surface of the window with screws 1.
8..., and the discharge port 19 provided on the rear surface of the upper part of the weed pulling frame 5 has a V-shaped lower part.
A letter-shaped discharge cylinder 20 is provided in a protruding manner.

Reference numeral 21 denotes a spring blade fixed to the side surface of the driving sprocket 8, which is lifted by the lifting pawls 6, thrown off by the centrifugal force at the upper end rotation part, and is applied to the inner surface of the grass pulling frame 5 and the upper end inner surface. Buffer rubber provided 2
Mud, weeds, etc. adhering to 2 are scraped out to the discharge port 19.

Reference numeral 23 is a receiving plate provided directly above the driven sprocket 9 in the weeding frame 5 to catch falling mud and debris, and the lower end of the scraper 24 fixed to the lower part of the guide rail 11 is attached to the receiving plate. 23
Since it is close to or in contact with the top of the guide rail 1
1 is moved back and forth, mud etc. accumulated on the receiving plate 23 is scraped off and falls onto the ground through the protruding gap of the raising claw at the lower part of the grass pulling frame 5.

In addition, in the drawing, 25 is a stay, and 26 is a narrow guide.

In the above-mentioned apparatus, when it is desired to reap and thresh the fallen grain culm, the guide rail 11 is pushed forward as shown in FIG. 3, and the adjusting screws 13, 13 are
When the nut is tightened, the raising claws 6 stand up at the lower end rotation part, their bases are taken over by the guide rails 11 and rise while maintaining the standing posture, and when the bases come off the guide rails 11, they fall down.

At this time, the tips of the lifting claws 6 rotate in close proximity to the ground at the lower end rotation part as shown in Figure 2, so that even the fallen grain culms are reliably scooped up from the base and the weeds are pulled up. Grain stalks to be planted inside the frame 5 are raised up toward the grain culm lifting frame 2 side by the inner guide rod 14, and grain stalks to be planted outside are raised by the outer guide rod 1.
4, the lodging grain culms are erected while being pushed outward, and the lodging grain culms are divided and raised to the left and right.

In addition, when reaping and threshing an upright grain culm, loosen the nuts of the adjusting screws 13, 13, and then pull the inner and outer guide rods 14, 14 backward, and the guide rod 1
4 and 14, the guide rail 11 is guided by the elongated holes 12 and 12 and retreats to the position shown in FIG. Rise.

Next, when reaping and threshing the lodging grain culm, contrary to the above, loosen the adjusting screws 13, 13, hold the inner and outer guide rods 14, and pull it out forward.
The state shown in the figure can be restored.

Since the present invention is configured as described above, when adjusting the guide rail forward or backward depending on whether the grain culm to be harvested and threshed is standing up or lying down, the guide rail attached to the outer surface of the weed-pulling frame is used. The guide rail inside the weed-pulling frame can be adjusted forward and backward very easily and quickly by simply holding the rod in your hand and pushing and pulling it back and forth, and the guide rail attachment means can also be used to attach the guide rod. As a result, it is possible to minimize the number of mounting screws and the like where grain culms, weeds, etc. can get caught, and it is also possible to reduce costs.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention,
Figure 1 is a perspective view of the front part of the combine, Figure 2 is a side view of the weed pulling frame, Figures 3 and 4 are side views of the main parts, Figures 5 and 6 are sectional views of the same as above, FIG. 7 is a side view of the upper part of the weed raising frame. 5... Grass pulling frame, 6... Pulling claw, 7... Chain, 11... Guide rail, 12... Long hole, 13
...Adjustment screw, 14...Guide rod.

Claims (1)

[Scope of utility model registration request] In a combine harvester in which a vertically hanging type grass pulling frame is provided on the front side of the machine body, a guide rail is provided in the grass cutting frame to allow the raising pawl to stand up and protrude, and the guide rail is attached to the grass cutting frame. The lifting claw can be adjusted in advance and retreat between the position where it stands up and guides it up and the position where it falls down and rises, and is attached in conjunction with a guide rod attached to the outer surface of the lifting frame. A weed pulling device for combine harvesters.