JPS6125624Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a stem culm binding device in which a door for a tied stem culm discharge port in a binding space is provided so as to be openable and closed by driving movement.

In the above-mentioned stem culm binding device, the door has conventionally been fixed to the drive swinging member so as to swing integrally therewith. Therefore, if you try to increase the binding volume, you will need to increase the length of the door, so when it is opened, the free end side will not be able to retreat out of the passage of the discharge stem culm, which will hinder the movement of the discharge stem culm. In addition, in order to prevent this problem, if you try to increase the operating stroke of the swinging member for driving the door, you will have to make major changes to the drive configuration, which requires modification. The drawback was that it became a large-scale project.

In view of the above-mentioned circumstances, the present invention has been developed so that even if the length of the door is increased, it can be reliably evacuated outside the passage of the discharge stem culm, and the modification for this purpose can be relatively easily performed, and large bundles can be bundled. The purpose is to make this possible while suppressing increases in manufacturing costs as much as possible.

Next, embodiments of the present invention will be described based on the drawings.

As shown in FIG. 1, a waste straw binding device 2 is disposed behind the threshing section 1, and the threshing feed chain 3 transports the threshed waste straw from the threshing section 1 and along the guide bottom plate 4. The threshing device for a combine harvester is constructed so as to be supplied to the binding device 2 in a horizontal position, and is used to bind the threshed straw together with the threshing of the harvested grain culm.

The waste straw binding device 2 is constructed as follows.

That is, the waste straw from the threshing feed chain 3 is scraped and supplied by the swing packer 5 into the bundling space 6 along the guide bottom plate 4, and as the supplied waste straw is converged, the bundling space 6
When the pressing force of the packer 5 applied to the door 8 of the bundling straw discharge port 7 through the converging straw discharger reaches the set value, the door 8 is slightly oscillated due to the pressing force, and the bundling straw is removed. Building 9, string holder 1
0, the string knotting part having the arm 11 for discharging the bundled waste straw, the string supply needle 12, and the clutch (not shown) for the door 8 are engaged, the binding operation is performed, and the door 8 is driven to open. The bundled waste straw is pressed and discharged to the rear of the machine.

As shown in FIGS. 2 and 3, the opening/closing drive structure of the door 8 is constructed by a door drive rocker that biases the base end of the door 8 upward to the closed position. It is interlocked and connected to the free end of the movable member 13 by a pivot shaft 14 parallel to its swing axis P, and is connected to a member 15 fixed to the fuselage by a link 16 and a connecting shaft 17. , the door 8 is oscillated as follows. That is,
When the waste straw is converged, it is in the closed position A, which is swung upward, as shown by the solid line in Fig. 2A, and when the pressing force of the packer 5 against the door 8 reaches the set value, the second
As shown by the imaginary lines in Figures A and B, the clutch enters the engaged operation position where the rocking member 13 and the rocking member 13 swing slightly downward around the rocking axis P compared to when they are in the closed position, and then As the member 13 is swung downward, as shown by _the solid line in _FIG . It is arranged to be in an open position B where the entire bundled waste straw is retracted downward from a passage 18 for discharged from the binding space 6.

Note that the spring plate 19 shown in FIGS. 1 and 3 presses a portion corresponding to the stock base side of the bundling position of the converging and discarded straw onto the receiving plate 20 of the bundling space 6, and This is to prevent posture disturbances. In addition, the locking tool 21 shown in FIGS. 1 and 3 is used to prevent the part of the converging and discharging straw from coming off backward from the receiving plate 20 at the time of convergence, which corresponds to the plant base side of the binding position of the converging and discharging straw. It is something that is made to work. Further, as shown in FIG. 4, the locking tool 21 connects one ends of the two plates to each other by a pivot shaft in the direction of the culm of the bundled waste straw, and also connects each of the plates. The end opposite to the connection side is connected to the receiving plate 20 through its elongated hole so that it can be slid in the direction of movement of the waste straw and can be tightened and fixed.
The height of protrusion from the receiving plate 20 can be changed and adjusted.

The swinging member 13 for driving the swinging angle Q ₂ of the door 8
When setting the swing angle Q to be larger than ₁ , the configurations shown in FIGS. 5 and 6 may be adopted instead of the above implementation configuration. In the case shown in FIG. 6, the door 8 opens and closes around a pivot shaft 14 that is perpendicular or nearly perpendicular to the swing axis P of the drive swing member 13. In addition to these, a configuration may be adopted in which the door 8 is retracted above the path 18 of the discharged bundled waste straw.

The binding device according to the present invention can be applied not only to threshing devices but also to binders and devices that treat various stems and culms other than rice and wheat.

In summary, in the above-mentioned stem culm binding device, the base end side of the door 8 is connected to the link 16.
is pivotally connected to the fixed part 15 via the door drive swing member 13, and is coupled to the door driving swing member 13 so as to be relatively swingable, so that the swing angle _Q2 of the door 8 can be changed by the swing of the drive swing member 13. It is characterized by having an angle larger than ₁ .

In other words, the door 8 is interlocked with the drive swinging member 13 so as to be able to swing relative to it, and the fixed part 15
By simply adding a relatively simple modification of connecting the door with a link 16, the entire door can be reliably moved out of the path of the ejected stem culm bundle when opened, even if the door length is increased. This made it possible to bind large bundles, and it also made it possible to reduce the production cost of the structure to the extent possible.

[Brief explanation of the drawing]

The drawings show an embodiment of the stem culm binding device according to the present invention, and FIG. 1 is a side view showing the straw binding part of the threshing device, FIG. 2 A and B are side views of the door drive structure, and FIG. FIG. 4 is a sectional view of the locking device attachment portion, FIG. 5 A and B are side views showing another embodiment of the door drive structure, and FIG. 6 is another embodiment of the door drive structure. FIG. 6... Binding space, 7... Outlet, 8... Door, 13... Swinging member, 15... Fixed part, 16...
...Link, Q ₁ , Q ₂ ... Swing angle.

Claims (1)

[Scope of utility model registration request] This is a stem culm binding device in which a door 8 for a tied stem culm discharge port 7 of a binding space 6 is provided so as to be openable and closable by driving. The door 8 is supported and connected to the door driving swing member 13 so as to be relatively swingable, so that the swing angle Q ₂ of the door 8 is larger than the swing angle Q ₁ of the drive swing member 13. A stem culm binding device characterized by: