JPH0530682B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a string threading device in a binding device used for binding harvested husks of a binder or waste straw of a combine harvester or a harvester.

[Conventional technology]

Conventionally, there has been a technique disclosed in, for example, Japanese Unexamined Patent Application Publication No. 56-32206, which allows the string to be passed through the string supply path from the winding string to the binding portion without error and in an easy-to-operate manner. This technology uses a string guide roller and a pipe to form a string supply path that extends from the vicinity of the winding cord storage section to the vicinity of the needle, and a string feed roller is provided at the starting end of the string supply path so that it can be freely driven. The string is configured to be fed into the supply path by the rollers.

[Problem that the invention seeks to solve]

However, the above-mentioned string threading technique cannot be used when the strings currently used on the market, such as jute, hemp, or resin, are soft and weak, or when the string supply path is bent. This was not a practical method because the string could get caught in the middle of the supply path, making it impossible to thread the string through.

The present invention provides a string threading device that can reliably and quickly pass a string through a predetermined string supply path with a simple operation by effectively utilizing a string threading rod, even if the string is soft. It's about doing.

[Means for solving problems]

The present invention is characterized in that the string passing rod is provided with a string locking part at the tip so that it can be bent and deformed,
The string threading rod is aligned inside the string threading rod guide pipe so that it can be freely extended and retracted, and the string is inserted between the tip of the string threading rod in the retreated position and the entrance of the string threading rod guide pipe. The main feature is that an opening for loading a cord is provided, which is placed on standby in a position that intersects with the advance path of the cord.

[Effect]

According to the above structure, when the string is inserted and set into the string loading opening and the string is advanced when the string is retracted, the end locking portion of the string is engaged with the string. Even if the string is weak or the string threading rod guide pipe is bent, the string threading rod, which can be bent and deformed, can be used as a string threading rod guide together with the string. The string advances along the pipe while being deformed, and is fed by the string passing lever until it reaches the outlet of the string passing rod guide pipe.

〔Effect of the invention〕

As explained above, according to the present invention, the string is fixed to the bendable and deformable string threading rod that moves along the string threading rod guide pipe and sent to the exit side, so that the string is flexible and has a weak stiffness. However, even if the string supply path is bent, the string can now be reliably and quickly guided through the pipe and guided out from a predetermined outlet.

In particular, the operation for setting the string through is as simple as inserting the string into the string loading opening in a position that intersects the advancing direction of the string threading rod, making it possible to quickly and easily set the string through. Now I can do it.

As described above, the present invention has made it possible to reliably and quickly perform string threading, which has been a tedious task for the operator, and to simplify the string threading work.

〔Example〕

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

As shown in Fig. 7, an engine 1 is mounted at the rear of the machine, which runs on a pair of left and right running wheels 2.A lifting device 3 and a reaping device 4 are located at the front of the machine, and a bundling device for bundling and releasing the cut culm is located at the right side of the machine. Device A is attached to form a binder.

As shown in FIGS. 3 and 6, the binding device A includes a knot building 5a, a tying part 5 consisting of a string holder 5b, a string supplying needle 7 for winding a tying string 6a around the culm, and a rotating The reaped husk is tied up with a string 6a that is fed out from a winding string 6 that is composed of a mold door 8 and placed in a string storage section B behind the working section of the machine, and by the rotation of the rotary door 8 Eject the bound culm out of the machine.

A front end opening 9a and a rear end opening 9b are respectively formed between the string storage part B and the tip string passing hole 7a of the needle 7 in the stopped position, and a bent string passing rod guide pipe 9 is arranged. A cord supply path is formed by

As shown in FIGS. 1, 2, 3, 5, and 6, in this binder, when replacing the winding string 6, etc., the string 6a from the winding string 6 is guided A lace threading device C for passing the needle 7 through the tip lace threading hole 7a through the pipe 9 is mounted. To explain, the lace threading device C includes a lace threading rod 10 that is made of sheet steel and is bendable and deformable, and a V-shaped lace locking portion 10a is cut out at the tip thereof, and the lace threading rod 10 is wound up and stored. At the same time, it is composed of a lace threading rod ejection/retraction mechanism D that lets out the lace threading rod 10, a string loading section 11, and a lace threading rod guide pipe 9. part 12, which is directly connected to the rotating shaft 12a of the storage part 12 and which biases the string threading rod 10 in the winding direction; A pair of upper and lower feed-out rollers 14a, 14b that feed out the string threading rod 10 by rotational force, and an electric motor 15
At the same time as decelerating the driving force from the upper roller 1
4a, a coil spring 17 for frictionally transmitting the driving force from the gear transmission section 16 to the upper roller, and a lower roller 14.
an arm 19 which rotatably supports the shaft 14b and is pivotally supported on the shaft 18; a spring 20 attached to the arm 19 and urging the lower roller 14b downward;
It consists of an operating lever 21 attached to the end of 8. As shown in FIG. 1, a string loading opening 11 formed in the pipe 25 of the string loading section 11
After inserting and setting the string 6a from the winding string 6 in a position intersecting the advancing direction of the string threading rod 10, the second
As shown in the figure, by operating the operating lever 21 to the position shown in the figure (on), the string 6a locked to the string locking part 10a of the string threading rod 10 is moved to the string threading rod 10. 10 as well as the string guide pipe 7a. Furthermore, after this, by releasing the lock of the string 6a and returning the operating lever 21 to the position shown in the figure (off), the string passing rod 10 is automatically moved by the operation of the rewinding section 13. It is stored backwards.

Incidentally, the rivet-like stopper 22 provided at the tip of the lace threading rod 10 that is retracted and stored comes into contact with the opening edge of the lace threading rod insertion hole Ca formed in the casing of the lace threading device C, so that when the lace threading rod 10 is retracted, The position of is determined. Further, the inner diameter of the string passing rod guide pipe 9 is set to about 7 mm, the width of the string passing rod 10 is set to about 5 mm, and the cross section of the string passing rod 10 is set to be arcuate as shown in FIG. It is curved, the string passing rod 10 does not bend in the string passing rod guide pipe 9 when the string is threaded, and the string 6a from the front end outlet 9a can be fed out in a straight line, and has a high section modulus. It is becoming.

In addition, 23 in the figure is the string 6 that is paid out from the winding string 6.
A is a brake that applies a braking force, and 24 is a slack remover for the string 6a, both of which are not used when operating the string threading device C, but are used when the binding device A is operating.

[Another example]

In this embodiment, a steel strip is used for the string threading rod 10, but instead of this, a material that does not buckle, such as a spring wire or a resin rod, may be used.
The zero may be fed out using the driving force of the engine 1 of the aircraft or manually. Also, string threading rod 10
The rewinding may be performed by driving or manually instead of using the urging force.

The present invention eliminates unnecessary extension of the string threading rod by interlocking the string threading rod extension/retraction mechanism D with a sensor or a timer and controlling the amount of drive movement thereof.
The present invention may be configured to be more easily handled, and the present invention may be applied to a binding device equipped with a combine harvester or a harvester in addition to a binder.

[Brief explanation of the drawing]

The drawings show an embodiment of the string threading device of the binding device according to the present invention, FIG. 1 is a longitudinal cross-sectional view of the device, FIG. 2 is a cross-sectional view of the device, and FIG. 3 is a cross-sectional view of the device when the device is operated. A schematic diagram of the state, Fig. 4 is a sectional view of the string threading rod, Fig. 5 is a plan view of the tip of the string threading rod, Fig. 6 is a perspective view showing this device and the binding device, and Fig. 7 is an overall side view of the binder. It is a diagram. 6... Winding string, 7... Needle, 9... Strap passing rod guide pipe, 10... Strand passing rod, 10a... Strap locking portion, 11a... Opening, D... Strand passing rod egress/retraction mechanism.

Claims (1)

[Claims] 1. The lace threading rod 10 is provided with a string locking part 10a at the tip so as to be bendable and deformable, and the lace threading rod 10 can be freely extended and retracted by the lace threading rod extension and withdrawal mechanism D, and the lace threading rod 10 can also be used as a lace threading rod guide. A pipe 9 is disposed between the lace threading rod egress/retraction mechanism D and the string supply needle 7, and between the tip of the lace threading rod 10 in the retracted position and the entrance of the lace threading rod guide pipe 9, A string threading device for a binding device, which is provided with a string loading opening 11a in which a string 6a waits in a position intersecting the advancing path of a string threading rod 10.