JPH0536347Y2 - - Google Patents

Description

[Detailed description of the invention] "Industrial application field" This invention is mainly used for combine harvesters.
The culms of rice, wheat, etc. and the stalks of soybeans (hereinafter referred to as "culms") that have been harvested and threshed are temporarily received, and when the amount received reaches a predetermined amount, they are transferred to the field. This invention relates to a dropper device for discharging.

``Prior Art'' A conventional dropper device 20 of a combine harvester has been widely used as shown in FIG. This is a culm collector that is attached to the rear end of the cover 4 that covers the upper part of the combine from the main body to the culm discharge port 3 located at the rear thereof, and that hangs approximately vertically from the attachment part 30. 5, and the culm discharge port 3
It consists of a culm holding tool 6 located below and attached to the rear part of the combine. The tip 5b of the culm collecting tool 5 is located near the tip 6b of the culm receiving tool 6.
On the other hand, the culm receiving tool 6 is provided with an appropriate swinging mechanism 12, and when the amount of culm reaches a predetermined amount, it swings downward to discharge the culm, and after discharging the culm, it swings upward. It is designed to swing and return to its original state.

The waste culm discharged from the waste culm discharge port 3 onto the culm receiving tool 6 is supported by the culm collecting tool 5 and gradually accumulates.
When the amount of waste culm accumulated on the culm receiving tool 6 (hereinafter referred to as "culm receiving amount") reaches a predetermined amount, the culm receiving tool 6 is rotated downward by the swinging mechanism 12. death,
Drain the accumulated culm onto the working field. After discharging the waste culm, the culm receiver 6 returns to its original state by the action of the swing mechanism 12, and continues to deposit the waste culm.

``Problems to be Solved by the Invention'' By the way, in the case of the conventional dropper device 20, the accumulated waste culm is damaged due to various influences such as wind, vibrations caused by the running of the combine harvester, and centrifugal force when changing direction. There was a problem that the culm fell off from the top of the culm holder 6. If a certain amount or more is deposited, a force is exerted to hold the culm against each other, so it is unlikely to fall off from the culm receiving tool 6 even if some external force is applied. However, when the amount of received culm 6 is small, especially immediately after discharging the culm, the discharged culm does not reach the culm tool 6.
It was difficult to stabilize on top, and it was easily affected by wind and vibration, so it was easy to fall off.

``Means for Solving the Problems'' The feature of the present invention is that the dropper device of the combine is pivoted at its base end or its vicinity in an appropriate place such as a dropper cover that covers the discharge culm outlet located at the upper rear of the combine. and a culm receiving tool located below the discharge culm discharge port and having its base end pivoted at a proper position at the rear of the combine, and the culm collecting tool has a distal end thereof. is urged by appropriate means so as to be close to the base end of the culm receiving tool, and
The culm receiver is configured to rotate toward the tip of the culm receiver in response to an increase in the amount of culm resisting the biasing force, and the culm receiver is provided with an appropriate swinging mechanism so that the amount of culm receiver increases. When a predetermined amount is reached, the culm receiver is swung downward to discharge the culm, and after the culm is discharged, it is swung upward to return to its original state.

"Operation" The culm collecting tool of the dropper device of the combine according to the present invention, which is constructed based on the above means, is biased by appropriate means so that its tip comes close to the base end of the culm receiving tool. Therefore, the discharged culm is guided and supported by the culm collecting tool and deposited on the culm receiving tool. and,
A pressing force is always exerted on the waste culm deposited on the culm receiver in the direction of the proximal end of the culm receiver. Moreover, since the culm collecting tool is configured to rotate toward the tip of the culm collecting tool in response to an increase in the amount of culm collecting resisting the urging force, the waste culms are piled up while being compressed. On the other hand, the culm receiving tool is provided with an appropriate swinging mechanism, which swings the culm receiving tool downward in order to discharge the waste culm when the amount of received culm reaches a predetermined amount, and after discharging the waste culm, it swings upward. Since the culm is oscillated to return to its original state, the culm is discharged repeatedly by a predetermined amount.

Embodiment FIG. 1 shows a perspective view of an embodiment in which a dropper device 1 according to the present invention is provided on the back side of a combine harvester, and FIG. 2 shows a side sectional view thereof. A transfer conveyor 2 for transporting the discharge culm is provided at the upper part of the combine, and a discharge port 3 for discharging the discharge culm is provided at the rear end.
is located. A cover 4 is provided to cover the transfer conveyor 2 and the culm discharge port 3, and a culm collector 5 is suspended from the rear inner surface of the cover 4, with the base end 5a or the vicinity thereof pivoted. On the other hand, the culm receiver 6 has a base end 6a pivotally attached to a cover outer wall surface 8 of a culm cutting device 7 located below the culm discharge port 3 and provided at the rear of the combine.

It is preferable to use a resilient member such as a piano wire for the culm collecting tool 5. Further, the culm collecting tool 5 has a distal end 5b connected to a base end 6a of the culm receiving tool 6.
Appropriate biasing means 9 are provided to bring it into close proximity. In this embodiment, an L-shaped or hook-shaped bent part 10 is provided at the base end 5a of the culm collector 5, and the bent part 10 is pivotally connected to the cover 4.
By biasing Oa with a spring 11, the tip portion 5b of the culm collecting tool 5 is urged to approach the base end 6a of the culm receiving tool 6.

The culm receiving tool 6 is provided with a mechanism that allows the culm receiving tool 6 to be swung downward as shown by the dashed line in order to discharge the waste culm when the amount of received culm reaches a predetermined amount, and to be swung upward after the culm has been ejected. Appropriate rocking mechanism 1 for moving and returning to the original state
2 is provided. The criterion for the predetermined amount of culm for which the swinging mechanism 12 is operated for discharge may be based on weight or volume. This can be selected as appropriate depending on the work purpose and work environment.

Next, the dropper operation of the dropper device of this embodiment will be outlined. In the initial state, the culm collector 5
The tip portion 5b is pushed into the culm receiving tool 6 by the urging means 9.
It is made to be close to the base end 6a of the. The culms of rice, wheat, soybeans, etc. that have been harvested and threshed are transferred to conveyor 2.
is sent to the rear of the combine, and the culm cutting device 7
or is discharged onto the culm receiver 6 from the culm outlet 3. The waste culm transferred by the transfer conveyor 2 and discharged from the waste culm discharge port 3 is transferred to a culm collecting tool 5.
It is guided and supported by and deposited on the culm receiving tool 6. The culm collecting tool 5 rotates in the direction of the tip 6b of the culm collecting tool 6 in response to an increase in the amount of collected culm resisting the urging force, but at this time, due to the action of the urging force, the discharged culm On the other hand, a force is always exerted to push the culm receiving tool 6 toward the base end 6a. Therefore,
The waste culm is stably held on the culm holding tool 6, and is deposited without spilling even if wind, vibration, or centrifugal force acts. When the culm receiving amount 6 reaches a predetermined amount, since the culm receiving tool 6 is provided with the swinging mechanism 12, the culm receiving tool 6 swings downward to discharge the waste culm. After being discharged, it swings upward and returns to its original state. At the same time, the culm collector 5b is also returned to the initial state by the biasing means 9.

By repeating the above-described series of dropper operations, the culm deposition and discharge operations can be repeated automatically and quantitatively.

If the culm collecting tool 5 has a length such that its tip 5b reaches the culm receiver 6 or projects slightly downward than the culm receiver 6, the discharged culm can be held more reliably. I can do it. In this case, it is desirable that the culm receiving tool 6 be provided with a slit 13 to allow reciprocating movement of the tip end portion 5b of the culm collecting tool to form a comb shape.

Further, a stopper 14 may be provided to restrict rearward rotation of the culm collector 5. The weight per unit volume of the culm is greatly influenced by the type of culm, the working environment, the weather at the time of work, etc. In other words, depending on the conditions, the volume of expelled culm for a given amount of culm can become very large. In such a case, the tip 5b of the culm collecting tool 5 may exceed the tip 6b of the culm collecting tool 6 due to an increase in the amount of culm collected, and from then on, as the culm is discharged, the culm is discharged. This is undesirable as it will cause it to fall off. Therefore, by providing the stopper 14, a predetermined amount of the waste culm can be appropriately deposited on the culm receiving tool 6.

Furthermore, the attitude of the culm collecting tool 5 is maintained at a position where its tip 5b is slightly away from the base end of the culm receiving tool 6,
If a means for holding the culm receiving tool 5 in a downwardly swung discharge state is provided, the culm collecting tool 5 will serve as a guide when the culm falls, so that the culm can be discharged continuously and in an aligned state. be able to.

In addition, if the structure is such that the culm collecting tool 6 can be swung upward and folded into the rear part of the combine, the tip 5b of the culm collecting tool 5 is placed close to the base end 6a of the culm receiving tool 6, so that it can be stored easily. It can be made very compact and saves storage space.

``Effects of the Invention'' As described above, in the present invention, the culm dropper work is automatically and repeatedly performed, which simplifies the operation of the combine harvester and reduces the burden on the operator. Therefore, work efficiency is very good.

Since the culm collecting tool is biased toward the proximal end of the culm receiving tool, it reliably holds the discharge culm. Therefore, when the amount of culm is small, especially immediately after the culm is discharged, the culm will not fall off even if external forces such as wind, vibration, centrifugal force, etc. act.

Due to the action of the swinging mechanism installed in the culm holding tool,
The culm can be accurately discharged in predetermined amounts.

The rotation mechanism of the culm collecting tool is simpler than that of the conventional one.
No manufacturing costs are incurred, which reduces costs.

It has the following advantages.

In short, the present invention provides a combine harvester with excellent workability and low manufacturing costs.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a dropper device for a combine harvester according to the present invention, and FIG. 2 is a side sectional view of the same figure. FIG. 3 is a perspective view showing a dropper device of a conventional combine harvester. 1... Dropper device, 3... Culm discharge port, 4
...Cover, 5... Culm collecting tool, 5a... Culm collecting tool base end, 5b... Culm collecting tool tip, 6... Culm receiving tool, 6a
...Base end of culm tool, 6b...Tip end of culm tool, 9...
...Biasing means, 12...Rocking mechanism.

Claims (1)

[Scope of utility model registration request] A culm collecting tool that hangs down by pivoting its base end or its vicinity to a cover, etc. that covers the discharge culm outlet located at the upper part of the rear of the combine; and a culm collecting tool whose base end is pivotally mounted at a suitable location, and the culm collecting tool is biased by appropriate means so that its tip comes close to the base end of the culm collecting tool. At the same time, the culm receiver is configured to rotate toward the tip of the culm receiver in response to an increase in the amount of the culm resister against the biasing force, and the culm receiver is provided with an appropriate swinging mechanism, so that the culm receiver When the amount reaches a predetermined amount, the culm receiver is swung downward to discharge the culm, and after the culm is discharged, it is swung upward to return to the original state. Combine dropper device.