JP3330782B2 - Combine focusing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a convergence device for collecting and discharging a certain amount of straw after threshing of a combine.

[0002]

2. Description of the Related Art Heretofore, there have been known configurations in which a cutter or a binding device is disposed at the rear of a combiner and a focusing device is attached to the rear thereof, or a configuration in which a focusing device is directly mounted at the rear of the combine. This collecting device discharges the waste after threshing from the tail of the machine at regular intervals, but if it is released backward, the crawler catches the culm by the crawler and disturbs the bundle, or tramples on it, so that it becomes dirty. As shown in FIG. 8, the focusing device is pivotally supported in the horizontal direction on the rear surface of the combine, and the mounting seat of the pivot shaft is fixed to the right end of the rear surface. , The culm was discharged to the right side of the combine in the advancing direction in the traveling direction, after being cut off. When the focusing device is not used, it can be stored in the rear surface of the combine.

[0003]

SUMMARY OF THE INVENTION In the prior art,
In a configuration in which the focusing device is rotated obliquely rearward and discharged to the right in the traveling direction of the combine, as shown in FIG. It was located outside the right side. However, even if the focusing device is returned and stored after the operation, the structure does not completely fit in the body width, so that the object may be caught when transporting the combine, which is a hindrance to the storage. In addition, the rotating configuration is a configuration in which it is difficult to obtain sufficient rigidity because the support portion is provided at one place. Therefore, a rigid focusing device that does not protrude beyond the body width when the focusing device is stored has been desired.

[0004]

The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described. That is, in the focusing device provided below the discharge outlet on the rear surface of the combine, a mounting seat is fixedly provided on a rear cover below the discharge outlet, and a short link is provided on the already cut side of the mounting seat, and a long link is provided on the uncut side. The links are pivotally supported in the rear horizontal direction, respectively, and the stacking member of the straw is connected to the rear portion of the short link and the long link, and the stacking member is moved to the storage position parallel to the rear cover and to the cutting side. It is configured to be switchable to a protruding working position.

[0005]

According to the present invention having the above construction,
By moving the focusing device to the right as viewed from the rear of the aircraft using links of different lengths, the focusing device can be made to protrude rightward and backward with respect to the traveling direction, and the culms in the traveling direction can be harvested. Can be released to the side. When the focusing device is stored using the link, the focusing device can be accommodated within the lateral width of the machine body by moving the focusing frame to the left. Also, by changing the fixing position of the link, the projecting direction of the receiving plate can be changed, and when the receiving plate is stored, it can be configured to be shorter in the vertical direction.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a rear view of a combine adopting the present invention, FIG. 2 is a plan view showing a convergence device of the present invention attached to the rear of the combine, FIG. 3 is a perspective view showing a fastening structure of the focus receiving pipe, and FIG. Plan sectional view showing the fastening structure of
FIG. 5 is a perspective view of the locking portion of the return spring, FIG. 6 is a side view showing the state where the focusing device is attached to the rear of the combine, FIG. 7 is a side view showing a state where the focusing device is housed, and FIG. It is a top view showing a state.

As shown in FIG. 1, at the rear of the combine A, the straw that has been threshed by the threshing device is transported rearward by a straw chain 35. The straw chain 3
As shown in FIG. 6, straw cutters 36 and 37 having a plurality of rotating blades are arranged in parallel below the rotating shaft. A switching cover is provided above the straw cutters 36 and 37, and by opening and closing the switching cover, the straw transported by the straw chain 35 is guided to the straw cutters 36 and 37 or cut. Outlet 40
It is sent to a tying device or a bunching device B and discharged to a field.

The structure of the focusing device B of the present invention will be described with reference to FIGS. At the right side of the rear cover 38 of the combine body, a mounting seat 1 formed in a U-shape in side view is fixed so as to open rearward. At the left and right ends of the mounting seat 1,
The short link 2 and the long link 3 having different lengths are pivotably supported in a horizontal direction. The other end of the short link 2 and the other end of the long link 3 are connected to a focusing frame 4 constituting an accumulation member by pivot shafts 5a and 5b having a vertical axis.
The focusing frame 4 is formed in a U-shape in side view,
By pivotally supporting the rear ends of the links 2 and 3, the focusing frame 4 is moved right and left, and a link mechanism is configured to switch one side to a storage position and the other side to a working position.

Stays 7 and 8 are fixed to both ends of the focusing frame 4. The right stay 7 extends vertically from the focusing frame 4 as shown in FIGS.
The cover 24 is fixed on the upper part, and the bolt and nut 10 are
The stay 9 is screwed together. As shown in FIGS. 3 and 4, the lower end of the stay 9 pivotally supports a central portion of a support shaft 11 having an axis in the left-right direction, and is sandwiched between a collar 12 and a washer 13. The left end of the support shaft 11 is rotatably inserted with the right end of a bundle receiving pipe 14 described later.
The right end of 1 is rotatably inserted into the focusing receiving pipe 15,
A locking body 16 is fixedly provided at the center of the support shaft 11.

As shown in FIG. 3, the locking body 16 is formed in a substantially triangular shape in a side view, the spring locking portion 16a extends rearward, and a square-shaped base is formed at the base of the spring locking portion 16a. The fitting hole 16b is opened, the fitting groove 16c is cut off at a concentric position on the upper outer periphery, and a contact portion 16d is formed at the upper front. The spring locking portion 16a is bent to form a locking hole 1 at the center.
6e is opened, and a return spring 26 described later is locked.
A stopper 23 projects from the left side surface of the stay 9, and restricts the upward rotation of the locking body 16 by abutting the contact portion 16d.

At the right end of the focusing receiving pipe 14, a fastening member 17 having a substantially "C" shape in side view is fixedly mounted.
7, one end protrudes forward to form a connecting plate 17a, the other end protrudes rearward as a fitting plate 17b, while a connecting plate 15a protrudes forward from the left end of the focusing receiving pipe 15, A connecting rod 1 is provided between the tip of the connecting plate 15a and the end of the connecting plate 17a.
8 are connected and fixed. Then, the fitting plate 17
The tip of b is bent rightward and has a tapered wedge portion 17.
c, and the wedge portion 17 c is fitted into the fitting hole 1 of the locking body 16.
6b or the fitting groove 16c. Further, the left end of the bundle receiving pipe 14 is pivotally supported on the lower portion of the stay 8 so as to be slidable left and right, and the right end of the bundle receiving pipe 14 is loosely fitted to the left side of the support shaft 11.
Is loosely fitted on the right side of the support shaft 11.

A plurality of fixed bodies 19 are fixed to the focusing pipe 14 and the focusing pipe 15 at regular intervals, and each fixed body 19 has a receiving plate 20 for receiving straw. Is fixed. Receiving plates 20 ', 20' on both left and right ends
Has an outwardly curved shape, and has a large area for receiving falling straw. The fixed body 19
.., Between the fixed plate 19 on the left side and the stay 8, a pressing spring 21
And urges the bundle receiving pipe 14 rightward.

Accordingly, the bundle receiving pipe 14 is slid to the left against the pressing spring 21 so that the wedge portion 17c is
b and the bundle receiving pipe 14 and the bundle receiving pipe 15 integrally connected by a connecting rod 18.
Is rotated about the support shaft 11 so that the wedge portion 17c is
6b, the receiving plate 20 can be fixed in a working state in which the receiving plate 20 projects in the rearward horizontal direction by inserting the pressing plate 21 in accordance with the urging force of the pressing spring 21. When the wedge portion 17c is inserted into the fitting groove 16c, the receiving plate 20 is raised. Can be brought into the storage state rotated.

As shown in FIG. 5, the upper portion of the stay 7 is fixed to the left and right center positions of the inner surface 24a of the cover 24, and the stay 24 partitions the inside of the cover 24 left and right. On the right side, a base 25a of a metering lever 25 is pivotally supported.
a lever guide hole is opened vertically on the right side surface of the cover 24, and a position changing groove 24b is formed on a side of the lever guide hole to move the metering lever 25 to an arbitrary position. It is possible to engage. The metering lever 2
5, the upper end of the return spring 26 is locked, and the other end of the return spring 26 is locked in a locking hole 16e opened in the spring locking portion 16a. The body 16 is urged to rotate upward, and the contact portion 16 d is in contact with the stopper 23.

As shown in FIGS. 6 and 7, a guide rod mounting seat 30 is provided on the upper surface of the upper cover 39 which covers the upper part of the straw chain 35.
Are screwed with fixing screws 31.
1, the guide rods 32 rotatably support the bases of the guide rods 32. The guide rods 32 are formed in an L-shape, project downward from the rear, and extend at the lower end to the rear position of the receiving plate 20. .
Then, at the time of work, the fixing screws 31 are loosened, and the guide rods 32 are protruded rearward, and the lower end is positioned between the receiving plates 20 so that the straw does not fall.
Tighten the fixing screws 31 to fix them. When not working, the guide rods 32 are rotated along the rear surface of the combine body and fixed in the stored state. A sink plate 28 is pivotally supported at the lower part of the outlet 40 on the rear surface of the combine so as to be vertically rotatable, and a guide plate 29 is provided on the left rear surface of the focusing frame 4.
Is fixed so that the rear portion of the sink plate 28 rides on the upper surface of the guide plate 29.

A short link 2 for rotating the focusing frame 4
And a structure for rotating between the working position and the storage position in the long link 3 will be described. A pivot portion of the short link 2 is provided on the center side of the right end of the mounting seat 1, and the long link 3 is provided on the left side of the mounting seat 1.
Is provided. As shown in FIG. 2, a fixing portion 4b is formed on the right side of the upper surface of the focusing frame 4, and an arc-shaped long hole 4c centering on a fixing bolt 5a is formed in the fixing portion 4b. ing. On the other hand, a bolt 27 with a handle is screwed into the upper surface of the short link 2 through the long hole 4c, and the link mechanism can be fixed by tightening the bolt 27 with the handle. With such a configuration, the pivot portion of the short link 2 on the body side can be provided without protruding beyond the body width. And, as the difference between the short link 2 and the long link 3 is increased, the angle at which the focusing device B is directed to the non-cutting side can be increased. Also,
The short link 2 discharges farther than the combine as it is longer,
At the time of storage, it can be stored toward the center of the aircraft.

With this construction, when the bolt 27 with the handle is loosened and the focusing frame 4 is moved to the right, the focusing frame 4 is moved by the short link 2 and the long link 3 in the traveling direction of the body. B can be arranged diagonally rightward. At this time, the bolt with handle 27 slides to the left side of the elongated hole 4c, and the focusing device B can be fixed as the working position by tightening the bolt with handle 27 at that position. Further, the focusing receiving pipe 14 is rotated, and the wedge portion 17 of the fastening body 17 is rotated.
When c is fitted in the fitting hole 16b of the locking body 16, the receiving plates 20, 20,... can protrude rearward as shown in FIG.

Then, the straw conveyed backward by the straw chain 35 exits through the discharge port 40 and flows down the sink plate 2.
8 and the guide plate 29, the receiving plate 20 ・ 2
.. Are accumulated on the receiving plate 20. The holding force of the receiving plates 20 by the return spring 26 set by the metering lever 25 increases the weight of the collected straw.
Are rotated downward to discharge the straw as a bundle to the right from the track of the machine body, and after discharging the straw, the receiving plates 20, 20,. Is returned to the original position, and the contact portion 16d contacts the stopper 23 and stops.

At the end of the operation, the bolt 27 with the handle is loosened, and the focusing frame 4 is moved to the left, so that the storage position is parallel to the rear cover 38. Thereafter, when the focusing receiving pipe 14 and the focusing receiving pipe 15 are moved to the left against the urging force of the pressing spring 21, the wedge portion 17c is disengaged from the fitting hole 16b, so that the fastening member 17 becomes rotatable. When turned upward, as shown in FIG.
.. Can be arranged upward.
In this position, when the wedge portion 17c is moved rightward in accordance with the urging force of the pressing spring 21, the wedge portion 17c can be inserted into the fitting groove 16c. .. Can be placed in a storage state in which they face upward. At this time, since the guide plate 29 placed on the sink plate 28 moves forward, the sink plate 28
Rotates downward.

[0020]

According to the present invention, the following effects can be obtained by the configuration described above. In other words, since the supporting device is supported by two links having different lengths, the conveying angle of the straw can be set to be large, the focusing device can be positioned further to the side than the right side of the main body, and larger than the traveling locus of the body. It is possible to discharge the straw to a field located at a remote position, and the crawler does not step on the discharged straw to disturb or break the bundle. Also, the mounting position of the focusing device is not limited to the end (right end) on the already cut side, but the range of the mounting position is widened and the degree of freedom is increased. Then, by selecting the length of the link, the release position can be set to an appropriate position. In addition, when the focusing device is stored, it can be stored without protruding to the side of the lateral width of the body, so that an obstacle or the like does not catch on the protruding portion. In addition, it was conventionally supported at one point on the cut side,
Since the focusing device has a two-point support structure by a link mechanism, it can be firmly supported.

[Brief description of the drawings]

FIG. 1 is a rear view of a combine employing the present invention.

FIG. 2 is a plan view in which the focusing device of the present invention is attached to a rear portion of a combine.

FIG. 3 is a perspective view showing a fastening structure of a focusing receiving pipe.

FIG. 4 is a plan sectional view showing a fastening structure of the focusing receiving pipe.

FIG. 5 is a perspective view of a locking portion of a return spring.

FIG. 6 is a side view in which the focusing device is attached to a rear portion of the combine.

FIG. 7 is a side view showing a state in which the focusing device is housed.

FIG. 8 is a plan view showing a working state of a conventional focusing device.

[Explanation of symbols]

 Reference Signs List A Combine B Focusing device 1 Mounting seat 2 Short link 3 Long link 4 Focusing frame 20 Receiving plate 38 Rear cover 40 Discharge port

Claims (1)

(57) [Claims] In a focusing device provided below a straw discharge port on a rear surface of a combiner, a mounting seat is fixedly provided on a rear cover below the discharge port, and a short link is provided on an already cut side of the mounting seat. The long links are pivotally supported in the rear horizontal direction, and the stacking members of the straw are connected to the rear portions of the short links and the long links, and the stacking members are stored in a storage position parallel to the rear cover.
A combine convergence device characterized in that it can be switched to a work position protruding to the already harvested side.