JPH036047B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a binding device installed in agricultural machines such as binders, combines, and roll balers.

[Conventional technology]

In binders, which are an example of agricultural machinery,
For example, as disclosed in Japanese Patent Application Laid-Open No. 56-32206, there is a string holder (3C in Figure 1 of said publication) that clamps the end of a string for tying grain culms, a needle (3C in Fig. 1 of the said publication) that wraps the string around the grain culm ( Some are equipped with a tying device consisting of a knotter bill (3D in Fig. 1 of the above-mentioned publication) for tying strings wound around the grain culm (3B in Fig. 1 of the above-mentioned publication).

[Problem to be solved by the invention]

As mentioned above, when the binding device is in the initial state where there is no string at all, the string taken out from the string storage section (1 in Figure 1 of the above publication) is placed in the string brake (5 in Figure 1 of the above publication). ), deflection absorbing device (6 in Figure 1 of the above publication), and pipe (see 6 in Figure 1 of the above publication)
After threading the thread (10) in the figure, the tip of the needle must be threaded through, and this series of thread threading work was all done manually.

In the case of agricultural machinery, there are many other devices installed near the tying device, so the path of the string from the string storage section to the tying device has to bend and twist at many places to avoid other devices. , are often located in deep areas that are difficult to reach.

Therefore, it is extremely troublesome to manually thread the string, and there are many cases where the string is passed through the wrong position.

Here, an object of the present invention is to make it possible to easily pass the string taken out from the string storage part to the needle without fail.

[Means to solve the problem]

The feature of the present invention is that the above-mentioned agricultural machine binding device is configured as follows. In other words, a pipe forming a string supply path to the needle is provided extending from the vicinity of the string storage section to the vicinity of the binding section, and the opening on the binding section side faces the string passage hole of the needle, and the pipe A jetting nozzle that spews out pressurized gas from a side diagonal direction is provided in the string feeding path near the string supply side end of the cord, and the pressurized gas is configured to send the string through the pipe to the string passing hole of the needle. The functions and effects are as follows.

[Effect]

As mentioned above, if a pipe is provided that extends from the string storage section to the string passing hole of the needle, the string can be inserted by feeding the string from the string storage section into the pipe from the string supply end of the pipe. It will definitely be fed into the threading hole of the needle.

When the pressure gas jet nozzle 11b is provided as described above, for example, if a string is inserted through the opening 11a as shown in FIG.
Pressure gas from b will be blown directly onto the string.

In this case, the ejection force of the pressurized gas is divided into a force component Fa that presses the string in a direction perpendicular to the inner surface of the path, and a force component Fa that sends the string toward the needle along the path. Therefore, this component Fb causes the string to pass through the pipe and be sent out to the string passing hole of the needle.

〔Effect of the invention〕

As described above, by simply inserting the string pulled out from the string storage section into the opening on the string supply side of the pipe, the string is automatically fed to the needle, making threading the string easier. It became like that.

By spraying pressurized gas from the jet nozzle directly onto the string, the string can be reliably fed to the needle.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

As shown in Figure 3, the engine 1 is located at the rear of the aircraft.
The agricultural machine is equipped with a pulling device 3 and a reaping device 4 at the front of the machine that runs on a pair of left and right running wheels 2, and a bundling device A for bundling and releasing the harvested grain culms on the right side of the machine. A binder, which is one of the above, is configured.

As shown in FIG. 1, the binding device A includes a string holder 6 that clamps the end of the string 7a, a needle 8 that wraps the string 7a around the grain culm, a knot holder 5 that binds the string 7a wound around the grain culm, It is composed of a revolving door 9 and the like. As shown in FIG. 3 and FIG. 1, a string storage part B is provided above the running wheel 2, and the string 7a drawn out from the rolled string 7 in this string storage part B allows The harvested grain culms are bundled and the grain culms are discharged outside the machine by rotating the door 9.

In addition, between the string storage section B and the binding section C, that is, the string passing hole 8a at the tip of the needle 8 at the stop position, there is a string supply side opening 10a (corresponding to the string supply side end) and a binding section side opening 10b. The cord 7a is bent and formed.
A string supply path is formed by disposing a guide pipe 10.

As shown in FIGS. 1 and 2, the string supply side opening 10a includes a lattice-shaped opening 11a and an opening 11.
A member 11 integrally formed with an ejection nozzle 11b formed to blow pressurized gas toward the axis P from the side of the axis P from a direction diagonal to the axis P is screwed. Furthermore, a pipe material 12 attached to the outside of the member 11 of the jet nozzle 11b and a valve 13 attached to the cylinder head 1a of the engine 1 shown in FIG. 4 are interlocked and connected via a flexible pipe 14. .

Then, the tip of the cord 7a from the winding cord 7 is inserted into the pipe 10 through the opening 11a, and the high-pressure combustion gas (combustible gas) generated in the cylinder head 1a is sent to the jet nozzle 11b. supply As a result, the ejection force F of the fuel gas is the string 7a.
The force component Fa pushes the string 7a in a direction perpendicular to the inner surface of the pipe 10, and the force component Fb sends the string 7a along the inside of the pipe 10 toward the needle 8. This force component causes the string 7a to pass through the inside of the pipe 10 and touch the needle. It is also sent to the string passing hole 8a of No.8.
Furthermore, as the combustion gas passes through the pipe 10, outside air is sucked into the pipe 10 through the opening 11a.
This suction action causes the string 7a to be further drawn into the pipe 10.

The valve 13 is configured to be opened using a lever 15, and in order to supply high-pressure combustion gas, the lever 1 must be pressed after starting the engine 1.
This is done by operating 5. Also, 16 and 1 in the figure
Reference numeral 7 denotes a string brake that applies a braking force to the string 7a that is let out from the winding string 7, and a slack-removal rod that tensions the string 7a that is let out.

In addition, when threading a string through the pipe 10, the winding string 7
The string 7a is pulled out in advance from the pipe 10, and when the string 7a is pulled into the pipe 10, the string brake 16 is pulled out from the string 7a.
This is done without applying braking force to a.

[Another example]

In this embodiment, combustion gas from the engine is used as the pressurized gas supplied to the jet nozzle 11b, but the atmosphere pressurized by the compressor is stored in the accumulator, and this pressurized atmosphere is supplied to the jet nozzle 11b. Also good. Also, instead of the structure in which the ejection nozzle 11b is integrally formed in the member 11, the member 1
1 and the ejection nozzle 11b may be constructed as separate members.

[Brief explanation of the drawing]

The drawings show an embodiment of the binding device for agricultural machinery according to the present invention, FIG. 1 is a schematic plan view showing the mechanism from the string storage section to the binding device, and FIG. 3 is an overall side view of the binder, and FIG. 4 is a longitudinal sectional side view showing the cylinder head of the engine. 5... Nodule building, 6... String holder, 7a...
String, 8...needle, 8a...needle string passing hole, 10...pipe, 10a...end of pipe on string supply side, 10b...opening on binding side of pipe, 11
b... Spout nozzle, B... String storage section, C... Binding section.

Claims (1)

[Claims] 1. A string holder 6 that clamps the end of the string 7a, and a string 7a.
A binding device for an agricultural working machine, comprising a needle 8 for wrapping a grain around a grain culm, and a knot building 5 for binding a string 7a wound around the grain culm.
A pipe 10 forming a string supply path to the cord is provided extending from the vicinity of the cord storage section B to the vicinity of the binding section C, and with the opening 10b on the binding section side facing the string passing hole 8a of the needle 8. , a jetting nozzle 11b is provided in the feeding path of the string 7a in the vicinity of the string supplying end 10a of the pipe 10, and the jetting nozzle 11b which blows out pressurized gas from a side diagonal direction is used to cause the string 7a to pass through the pipe 10 and into the needle 8. A binding device for an agricultural working machine configured to feed a string to a string passing hole 8a. 2. The agricultural machine binding device according to claim 1, wherein the pressure gas ejected from the ejection nozzle 11b is engine combustion exhaust gas.