JPH0449869Y2 - - Google Patents

Description

[Detailed description of the invention] ○ Industrial application field The present invention relates to a harvester for transporting harvested crops to a desired position.

○ Conventional technology In known harvesters, harvested crops such as fodder are harvested by the reaping section at the front of the machine, or harvested crops are left on the ground to dry after harvesting and are harvested by a pick-up device at the front of the machine. After being sent to a shredding device and shredded by the shredding device, it is sent to a wagon at the rear of the machine via a conveyance device and a conveyance tube. The wagon is configured to be able to pivot rearwardly and to rotate the wagon rearwardly at a desired position to release the shredded crop within the wagon.

○ Problems to be solved by the invention In the above-mentioned harvester, the conveyor tube and wagon are arranged close to each other in order to shorten the overall length of the machine by curving the tip of the conveyor tube, and the discharge guide at the tip of the conveyor tube is is in a position that protrudes into the wagon's rotation trajectory when facing backwards, so when rotating the wagon rearward to release the accumulated shredded crops to the desired position, the discharge guide must be rotated left and right to move the wagon. It is necessary to move it out of the rotation trajectory.

Therefore, if there is no lever operation to rotate the discharge guide to the left or right before rotating the wagon, there is a drawback that the discharge guide and the upper end of the wagon may come into contact and damage the discharge guide. be.

The purpose of the present invention is to prevent the above-mentioned damage to the discharge guide when the wagon rotates.

○ Means for Solving the Problems The present invention includes a discharge guide 6 that is attached to the tip of the conveying tube 5 so as to be rotatable in the vertical direction, and a first spring that biases the discharge guide 6 to rotate upward. body 11 and
A second spring body 12 is provided which urges the discharge guide 6 to rotate downward, and the second spring body 12 is connected to the first spring body 12.
The elastic force is set to be greater than that of the spring body 11.

○ Effect When the discharge guide 6 protrudes into the rotation path S of the wagon 4 and the operation for discharging the harvested crops in the wagon 4 [rotation operation of the wagon 4 backward] is performed, the upper end of the wagon 4 The peripheral edge 4a comes into contact with the tip of the discharge guide 6, but due to the contact between the two, the spring body 1
2 expands, the discharge guide 6 rotates upward and escapes, and damage to the discharge guide 6 is prevented.

Furthermore, when the wagon 4 is returned to the normal position from the discharge position (rotating the wagon 4 forward and returning to the harvested crop accumulation position), the discharge guide 6 protrudes into the rotation path S of the wagon 4. 4, the first spring body 11 expands and the discharge guide 6 rotates downward and escapes, thereby preventing damage to the discharge guide 6.

○ Example Referring to FIGS. 1 and 2, the reaping and harvesting machine has a harvesting section (reaping section, pick-up device) 1 at the front of the machine, and a shredding device 2 and a conveying device 3 at the center of the machine. , a wagon 4 for accumulating harvested crops is provided at the rear of the machine, and a discharge guide 6 provided at the upper end of the transport tube 5 of the transport device 3 is made to look above the wagon 4, unlike the conventional device. It is similar to In addition, in FIG. 1, 7 is a traveling device, 8
is a conveying tube rotating lever for rotating the conveying tube 5 with respect to the conveying device 3 and moving the tip of the discharge guide 6 left and right to change the discharge position of the harvested crop into the wagon 4. .

In the above-mentioned harvester, the present invention is such that the base of the discharge guide 6 is pivoted to the tip 5a of the conveying cylinder 5 by a shaft 9, so that the discharge part 6 can be freely rotated in the vertical direction. The first spring body 11 that urges the
and a second urging the tip of the discharge guide 6 downward.
A spring body 12 is provided, and the elastic force of the second spring body 12 is made larger than the elastic force of the first spring body 11.

The first spring body 11 is attached between a stopper 10 that projects upwardly from the distal end 5a of the conveying tube 5 and a locking piece 13 that protrudes upwardly from the distal end of the discharge guide 6. The body 12 is located between the lower end of a connecting member (rod) 15 whose upper end is pivotally supported by a pin 14 projecting laterally from the tip of the discharge guide 6, and a stop 20 integrated with the adjustment lever 16. Install.

The adjustment lever 16 passes through an adjustment hole 18 of an adjustment latch 17 fixed to the conveying cylinder 5, and selects a plurality of lock portions 19 of the adjustment hole 18 to engage with the adjustment latch 17. The downward inclination angle of the can be adjusted freely. It goes without saying that the rod 15 described above may be replaced with a wire.

In normal use, the second spring is set according to the elastic force of the first spring body 11 and the selection of the lock part 19 of the adjustment hole 18 of the adjustment latch 17, that is, according to the position of the adjustment lever 16. Due to the balance with the elastic force of the spring body 12, the discharge guide 6 is maintained at a predetermined downward inclination angle below the horizontal direction, and discharges the shredded crop toward the center of the upper surface of the wagon 4.

When the wagon 4 is rotated backward with the discharge guide 6 protruding into the rotation trajectory S of the wagon 4, as shown in FIG. Although it will come into contact with the tip of the guide tool 6, the spring body 12 will expand due to the contact between the two, and the discharge guide tool 6 will rotate upward and escape, thereby preventing damage to the discharge guide tool 6.

Furthermore, when the wagon 4 is returned from the discharge position rotated backward to the storage position in the horizontal state, if the discharge guide 6 protrudes into the rotation trajectory S of the wagon 4, the upper end of the discharge guide 6 As the peripheral edge 6a descends, the upper end peripheral edge 6a comes into contact with the discharge guide 6, but due to the contact between the two, the first spring body 11 expands as shown in FIG. 6, and the discharge guide 6 rotates downward to escape and discharge. Damage to the guide tool 6 is prevented.

Therefore, even if the user forgets to operate the conveyor tube rotation lever 8 and the discharge guide 6 protrudes into the rotation locus S of the wagon 4, the discharge guide 6 will not be damaged when the wagon 4 rotates.

○ Effects of the invention The present invention has the advantage that even if the discharge guide 6 protrudes into the rotation locus of the wagon 4 and the discharge guide 6 and the wagon 4 are in an interference position, when the wagon 4 rises (the accumulated harvested crops When releasing the wagon 4), the second spring body 12 expands and the discharge guide 6 escapes, and when the wagon 4 descends (returning to the storage position), the first spring body 11 expands and the discharge guide 6 escapes. By escaping, damage to the discharge guide 6 can be reliably prevented without requiring evacuation operations such as rotating the discharge guide in the left and right directions as in the conventional device, and the wagon 4 can be brought close to the conveyor tube 5 to move the entire length of the machine. There has never been any problem with the shortening of the period.

In addition, since the elastic force of the second spring body is larger than that of the first spring body, the discharge guide can be maintained at a downward slope against the upward acting force generated on the discharge guide, and the reaping Crops can be reliably discharged into the wagon 4.

[Brief explanation of the drawing]

FIG. 1 is a side view of a harvester embodying the present invention, and FIG. 2 is a plan view thereof. 3 and 4 show the upper part of the conveying cylinder and the discharge guide which are the main parts of the present invention, FIG. 3 is a partial front view, and FIG. 4 is a partial plan view. Figures 5 and 6 are partial side views of the harvester showing the operation of the present invention. Figure 5 is when the wagon is rising (when releasing the accumulated crops), and Figure 6 is when the wagon is lowering (when the harvested crops are being released). (when returning to normal position)
This shows that. 4... Wagon, 5... Conveying tube, 6... Discharge guide, 11... First spring body, 12... Second spring body.

Claims (1)

[Scope of utility model registration request] The harvested crops are sent to the wagon 4 by the conveyance device 3, the harvested crops accumulated in the wagon 4 are released by rotation of the wagon 4, and the harvested crops are attached to the tip of the conveyance cylinder 5 of the conveyance device 3 within the rotation trajectory of the wagon 4. Discharge guide tool 6
In the reaping and harvesting machine where
A first spring body 11 that urges the discharge guide 6 to rotate upward is attached between the distal end 5a of the conveying tube 5 and the distal end of the discharge guide 6, and
The second spring body 1 urges the to rotate downward.
2 is attached between the lower end of the connecting member whose upper end is pivoted to the tip of the discharge guide 6 and the intermediate part of the conveying cylinder 5, and when the elastic force of the first spring body 11 and the second spring body 12 are in the normal position, A device for attaching a discharge guide to a conveyance tube in a harvester, characterized in that the discharge guide tube is maintained at a set inclination angle while the discharge guide tube 6 is biased in a downward rotating direction by balance with the elastic force of the discharge guide tube.