JPH036045B2 - - 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.

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

[Problem to be solved by the invention]

When the above-mentioned 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 Fig. 1 of the above publication) is placed in the string brake (see Fig. 1 of the above publication). 5), 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 through 10) in the figure, the threading operation is to thread it through the tip of the needle, and this series of threading operations was all done manually.

In the case of agricultural work, many other devices are placed near the tying device, so the path of the string from the string storage section to the tying device has to be bent and twisted at many places to avoid other devices. They 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 special feature of the present invention resides in that the above-mentioned agricultural machinery is bundled in the following manner. In other words, with the pipe that forms the string supply path to the needle extending from near the string storage section to near the binding section,
Further, an opening on the binding part side is provided so as to face the string passing hole of the needle, and a jetting nozzle for pressurized gas is arranged at the end of the string supplying side of the pipe, and the jetting gas is jetted into the pipe from the jetting nozzle. The string fed out from the string storage part is sent out to the needle via a pipe by a gas flow, and an ejector is provided at the string supply side end of the pipe to eject gas from a jet nozzle into the pipe. The reason is that a flap-shaped opening is formed to introduce outside air into the pipe, and its 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.

If a pressure gas ejection nozzle is provided at the end of the pipe on the string supply side, a person only needs to pull the end of the string out of the string storage part and slightly insert it into the end of the pipe on the string supply side. After this, the string will be sent through the pipe to the needle with the flow of pressurized gas.

Furthermore, if a rattling-shaped opening is provided at the end of the pipe on the string supply side, outside air will be drawn into the pipe through the opening by the ejecting action at the same time as the pressurized gas is ejected from the jet nozzle, and the string will be fed. . Therefore, sufficient force to feed the string to the needle can be obtained without injecting a particularly large amount of pressurized gas from the jet nozzle.

〔Effect of the invention〕

As described above, by simply inserting the string pulled out from the string storage section into the string supply end of the pipe, the string is automatically fed to the needle, making threading the string easier. Now I can do it.

By effectively utilizing the ejector action, the string can be sent with a small amount of pressurized gas, so the device on the pressurized gas supply side can be small, which is advantageous in reducing the overall size of the device and reducing manufacturing costs.

〔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.

Further, 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 in the stop position, there is a supply side opening 10a (corresponding to the string supply side end) and a binding section side opening 10b. A string supply path is formed by disposing a bent pipe 10 for guiding the string 7a.

As shown in FIG. 2, a member 11 having a flap-shaped opening 11a is attached to the supply opening 10a, and a jet nozzle 12 having a narrowed tip opening is attached in parallel with the member 11. . The jet nozzle 12 and a valve 13 attached to the cylinder head 1a of the engine 1 shown in FIG. 4 are connected to each other via a flexible pipe 14.

As a result, the tip of the string 7a from the winding string 7 is inserted into the opening 11a of the member 11, and the high-pressure combustion gas generated within the cylinder head 1a is supplied to the injection nozzle 12. Together with the combustion gas injected into the pipe 10, outside air is drawn in through the opening 11a by the ejector action accompanying the injection of combustion gas, and a relatively small amount of combustion gas is drawn into the string 7.
a is sent to the string passage hole 8a of the needle 8.The valve 13 is configured to be opened using a lever 15, and after starting the engine 1 that supplies high-pressure combustion gas, the lever 15 is opened. This is done by operating. Reference numerals 16 and 17 in the figure are 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 takes up the slack of the string 7a that is let out. As described above, when threading the string by supplying combustion gas, the string 7a is pulled out from the winding string 7 in advance so that the braking force of the string brake 16 does not act on the string 7a.

[Another example]

In this embodiment, combustion gas from the engine 1 was used as the pressurized gas supplied to the jet nozzle 12, but the configuration is such that air pressurized by a compressor is stored in an accumulator and this pressurized air is supplied to the jet nozzle 12. You may do so. Also, as shown in Figure 5,
The string supply section of the pipe 10 may be configured by screwing a member 11 having a wrapper-shaped opening 11a onto the pipe 10, and by fixing the ejection nozzle 12 along the inside of the opening 11a.

[Brief explanation of the drawing]

The drawings show an embodiment of the binding device for an agricultural working machine according to the present invention, and FIG. 1 is a schematic plan view showing the mechanism from the string storage section to the binding device, and FIG. 2 is a view taken along the - line in FIG. 1. 3 is an overall side view of the binder, FIG. 4 is a longitudinal sectional side view showing the cylinder head portion of the engine, and FIG. 5 is a sectional view showing another embodiment of the arrangement position of the ejection nozzle. 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
a...Ratsupa-shaped opening, 12...Ejection 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 culm around a grain culm, and a knot building 5 for tying 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 pressure gas jetting nozzle 12 is disposed at the end 10a of the string supply side of the pipe 10, and a gas flow jetted from the jetting nozzle 12 into the pipe 10 causes the string to be paid out from the string storage part B. The string 7a is configured to be sent out to the needle 8 through a pipe 10, and outside air is fed into the string supply side end 10a of the pipe 10 by an ejector action accompanying gas injection from the jet nozzle 12 into the pipe 10. A binding device for agricultural working machines, which is formed with a flap-shaped opening 11a that is introduced into the binding device. 2. Claim 1, wherein the pressure gas ejected from the ejection nozzle 12 is engine combustion gas.
A binding device for agricultural machinery as described in 2.