JP3208280B2 - Combine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a combine.

[0002]

2. Description of the Related Art Conventionally, in combine harvesting, when threshing a hand-cut cereal culm (a cereal culm in a corner of a field cannot be harvested by a combine), threshing is performed when threshing is performed. A threshing process is carried out by placing a hand-cut culm on the starting end of a feed chain of the apparatus.

[0003]

If a large amount of cereal stems are supplied at one time to the starting end of the feed chain, all of the stalks are caught on the feed chain and transported. There was an inconvenience that clogging of the grain stem occurred.

[0004] An object of the present invention is to successfully solve the problem of preventing clogging of the feed chain and the new problem caused by preventing clogging in the threshing process of hand-cut grain culms. On the point.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, a feature of the present invention is to provide a storage position for exposing the feed chain start end at the feed chain start end of the threshing apparatus, and a feed chain start end. With a cover position that covers the stalk, and a hand-cuttered grain culm mounting support that can switch the front part up and down around the rear fulcrum, and cuts with the swinging operation back and forth
Clutch operation for turning on / off the clutch of the preprocessing device
Equipped with a lever and forward of the clutch operation lever
With the operation of engaging the clutch by the swinging operation of
Linking means for switching the mounting support to the storage position is provided.

[0006] In the case of threshing the stalks of the hand-cut cereals, the stalk-holding support is raised to set a cover position covering the starting end of the feed chain, and only the threshing device is driven to operate the hand-cut stalks. The culm is placed on the grain culm placing support and supplied to the start end of the feed chain.

In such a case, a large amount of cereal culm is placed on the cereal culm at a time.
Everything is on the feed chain, even if it is placed on a support
The feed chain is not caught and transported.
Can be supplied in an amount suitable for the transfer capacity of the machine.

[0008] In this way, when the support for placing the culm on the hand-cutting is provided, if the culm placing support is forgotten during the harvesting operation in the combine, the starting end of the feed chain of the threshing device is used. Although a new problem of clogging may occur, the grain stalk placing support can be switched to the retracted position with the engagement operation of the clutch of the pre-cutting device, so that the grain stalk placing support is forgotten. Can be prevented.

[0009]

As a result of the above construction, during manual threshing work,
Clogging of the grain stalks in the feed chain transport path can be prevented beforehand, and smooth handling and threshing can be performed, thereby improving workability.

[0010] Thus, while providing the support for placing the hand-cut cereal culm, it is possible to prevent the hand-cut cereal culm-mounting support from being clogged due to forgetting to be closed during the harvesting operation by the combine. And smooth mowing work can be performed.

[0011]

FIG. 1 shows the entirety of a self-contained combine. This self-contained combine includes a cutting pretreatment device A including a raising device 1, a cutting device 2, and a vertical transport device 3 at the front of the body. Equipped, raising the lodging grain culm and raising the grain stem with the device 1, cutting the root portion of the grain culm with the cutting device 2, changing the cut culm to the horizontal position while carrying the lift by the vertical conveyance device 3. It is delivered to the feed chain 4 of the threshing apparatus D, and threshing is performed by the threshing apparatus.

As shown in FIGS. 2 and 3, the guide 5 for guiding the culm at the start end of the feed chain 4 is pivotally supported on the support 7 of the holding rail 6 so as to be able to swing up and down around the horizontal axis P1. The guide 8 of the spring 8 is provided by the spring 8 erected between the stalk guide 5 and the support 7.
An imaginary line connecting the connection point of the spring 8 on the support base 7 side and the swing fulcrum of the guide 5, that is, the connection point on the side is switched up and down at the dead point, and the grain culm is pinched and conveyed. It is configured to be swingably switchable between a posture and a non-working posture which is retracted upward when feeding the cereal stalks, and furthermore, when it is switched to the working posture, it almost follows the starting end of the feed chain 4. The downward swing is restricted by the stopper 9.

At the beginning of the feed chain 4, between the feed chain 4 and the feed chain cover 10,
A hand-held cereal culm placing support 11 that can swing up and down along the feed chain cover 10 is provided around the rear fulcrum P2.
As shown in FIG. 3, the storage position for exposing the start end of the feed chain 4 and the feed chain 4 as shown in FIG.
And a cover posture for covering the starting end of the camera. The cereal stalk placing support 11 is provided with a small feed chain on the front side of the clamping rail 6 so that the cereals placed on the cereal stalk placing support 11 are locked and conveyed by the feed chain 4 during manual threshing. It is provided to leave four parts.

The switching of the culm placing support 11 by the operation of the lever 12 is pivotally supported on the side wall of the hand-cut cereal culm placing support 11 and the threshing device D so as to be swingable about a horizontal axis P3. The tip of the operation lever 12 is linked with the pin 12a via the elongated hole 11a, and the grain 12 is moved up and down in the elongated hole 11a by the operation of the lever 12, so that the grain culm placing support 11 can move up and down. Have been. And the lever 12
Grain stalk placing support 11 which has been switched up and down by operation
The vertical movement is restricted by a fixed shaft 13 rotatably supporting a long hole 11b formed at the front of the plate and a driven sprocket of the feed chain 4, and the upper surface of the grain stalk placing support 11 in the cover posture. Are regulated to have a substantially horizontal posture. The operating lever 12 is provided with its grip portion 12b protruding downward from the feed chain cover 10.
And a spring 14 erected over the side wall of the threshing device D
Accordingly, the connection point of the spring 14 on the lever 12 side can be switched up and down with a dead point connecting the connection point of the spring 14 on the threshing device D side and the swing fulcrum P3 of the lever 12 as a boundary.

The operating lever 12 and a clutch operating lever 16 for operating the belt tension clutch 15 of the pre-cutting device A are linked via a release wire 17 as a linking means, as shown in FIG. As described above, the operation lever 12 of the grain stalk placing support 11 is operated in conjunction with the clutch rearward operation of the grain stalk placing support 11 to the rear side of the fuselage to switch the grain stalk placing support 11 to the retracted posture, and As shown in FIG. 3, the clutch operating lever 16 is configured to be operable to the disengaged position in conjunction with switching of the grain stalk placing support 11 to the cover posture by operating the lever 12 of the grain stalk placing support 11. is there.

The clutch operation lever 16 is
As shown in FIG. 2 and FIG. 3, the spring 18 is provided between the C-shaped link 16a and the tension arm 15a so that the spring 18 can be switched between the on position and the off position.

According to the above configuration, when threshing the cereal stalk being handled, as shown in FIG.
Is switched to the non-operating position in which the stalks are retracted upward, and the cereal stalk placing support 11 is switched to the cover position for covering the starting end of the feed chain 4, and the cereal stalk placing support 11 is placed on the cereal stalk placing support 11. And feeds it to the feed chain 4. In such a case, when a large amount of grain culm is supplied to the starting end of the feed chain 4 at a time, the grain culm is temporarily placed on the grain culm placing support 11 to increase the transport capacity of the feed chain 4. The feed chain 4 can be supplied by a predetermined amount, and as a result, the cereals can be smoothly transported by the feed chain 4, and a large amount of cereals can be supplied to the start end of the feed chain 4 at a time. The clogging of the grain stalk in the transport path of the feed chain 4 at the time can be suppressed.

As shown in FIG. 2, the cereal stalk placing support 11 can be switched to the retracted position with the engagement operation of the clutch 15 of the pre-cutting device A.
At the time of the harvesting operation by the combine, clogging of the transported grain culm at the start end of the feed chain 4 due to forgetting to close the grain culm placing support 11 can be suppressed.

[Alternative Embodiment] In the above embodiment, the cereal stalk placing support 11 is configured to be switched to the retracted position in accordance with the engagement operation of the clutch 15 of the pre-cutting device A, but FIG. As shown, a sensor 19 for detecting the presence or absence of a grain stalk provided in the path of the raising device 1 and a lever position detection sensor 20 for detecting a switching state of the grain stalk placing support 11 are provided.
Is provided, and when the AND condition of both sensors 19 and 20 is satisfied, that is, in a state where the cereal culm placing support body 11 is in a cover position where threshing can be performed by hand, the cereal culm is supplied to the raising device 1. When the vehicle arrives, the alarm device 23 may be operated via the control device 21 and the drive circuit 22 including a microcomputer, and an alarm may be issued to alert the user to forget to close the cereal stalk placing support 11.

Further, in the above embodiment, the grain culm placing support 11 is brought into the retracted position in accordance with the engagement operation of the clutch 15 of the pre-cutting device A, and the harvesting is carried out in accordance with the switching of the cover position of the support 11. In disengaging the clutch 15 of the processing apparatus A, the cereal stalk placing support 11 and the clutch operating lever 16 of the pre-cutting processing apparatus A were linked via a release wire 17 as linking means. As shown in FIG.
Switch 24 that detects that the switch has been operated to the entry position
The solenoid 25 for switching the operation lever 12 of the grain stalk placing support 11 to the retracted position based on the detection result of the switch 24 and the operation lever 12 of the grain stalk placing support 11 being operated to the cover position. A switch 26 for detecting,
A solenoid 27 for operating the clutch lever 16 of the mowing pre-processing device A to the disengagement position based on the detection result of the switch 26 is provided, and based on the detection results of these switches 24 and 26, a control device 2 comprising a microcomputer.
8, and the linking means may be configured to operate the levers 12, 16 by projecting the solenoids 25, 27 via the drive circuits 29, 30.

Further, the shape and structure of the hand-cut grain support 11 may be any shape as long as the design can be changed.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings]

FIG. 1 is an overall side view of a combine.

FIG. 2 is a schematic side view showing a linkage structure between a clutch and a grain stalk placing support of the pre-cutting device.

FIG. 3 is a schematic side view of the switching state.

FIG. 4 is a longitudinal sectional front view of a grain stalk placing support.

FIG. 5 is a schematic side view of the second embodiment.

FIG. 6 is a schematic side view of a third embodiment.

[Explanation of symbols]

 Reference Signs List 4 feed chain 11 cereal stalk placing support 15 clutch of pre-cutting device A pre-cutting device D threshing device

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-6-269216 (JP, A) JP-A-54-49822 (JP, A) Japanese Utility Model Showa 57-115854 (JP, U) Japanese Utility Model Utility Model Sho 54- 149970 (JP, U) Japanese Utility Model 1983-113331 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A01F 12/10 A01D 69/00

Claims (1)

(57) [Claims] 1. A storage position at which a start end of the feed chain (4) is exposed at a start end of the feed chain (4) of the threshing device (D), and a cover position at which the start end of the feed chain (4) is covered. , Around the rear fulcrum (P2)
A hand-cut grain culm mounting support (11) is provided, which can be switched up and down freely .
Clutch operating lever for turning on and off the latch (15)
(16), and a forward swing operation of the clutch operation lever (16).
With the operation of engaging the clutch (15), the grain stalk placing support is supported
A combine provided with linking means for switching the table (11) to the storage position .