JPH0749286B2 - Strapping device for binding 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 string threading device in a binding device used for binding a cut grain culm of a binder or binding a discharged straw of a combine or a harvester.

[0002]

2. Description of the Related Art Heretofore, as a technique for passing a cord from a winding cord to a cord supplying path to a binding portion without any error and for easy operation, there is a technique disclosed in Japanese Patent Laid-Open No. 56-32206. . In this technique, a string supply roller extending from the vicinity of the winding string storage portion to the vicinity of the needle is formed by a string guide roller and a pipe, and a string feeding roller is provided at the starting end of the string supplying path so that the string feeding roller can be driven so that the string can be unwound from the winding string. The string is configured to be fed into the supply path by the roller. Also, the actual public 5
As shown in JP-A-7-38979, a binding device
As a string threading device of the winding string storage unit and the binding needle
Piping from the pipe opening on the needle side of the pipe
Insert the stringing rod made of anoline and wind the tip of the string.
Push out to the outside of the pipe opening on the storage side and start the winding string at the tip.
A technique is also known in which , after connecting the portions, the string passing rod is pulled out and the string starting end is set through the needle hole.

[0003]

However, the former stringing technique described above uses the jute, hemp, and
If the string of resin or the like is weak and soft, or if the string supply path is bent, the string will be caught in the middle of the supply path such as the guide pipe, making it impossible to thread the string. Therefore, it was not a practical method. Also, the latter stringing technology
Can be threaded with a soft and soft string.
The work is troublesome, and the stringing rod is permanently attached to the aircraft.
There is no such thing, so if you lose it
is there. It should be noted that this is not a technique related to the string threading device of the binding device.
However, in the US Pat. No. 4,054,264 and the drawings,
A portable long flexible wire for inserting an electric wire into the empty path
Techniques related to a device for inserting a body are known.
The handle is spaced by a predetermined pitch from the body of the feed pipe.
Reciprocate to pull out the lead wire with the wire locked at the tip,
Be able to pull back the lead wire when pulling back the lead wire
After switching the reverse rotation plate, operate manually as in the case of feeding.
There is an inconvenience to make. In addition, this
Because it is for obi, if you forget it or lose it, you can not work,
Even if you do this, the device for inserting the linear body
I have to support it all the time, and my hands get tired
There is a drawback that the work is troublesome. The present invention provides a string threading device that effectively uses a string threading rod and can reliably and quickly thread a string into a predetermined string supply path even if the string is soft, by a simple operation. To do.

[0004]

It is a feature of the present invention SUMMARY OF] is the tip cord insertion rod is provided with a Himogakari stopper portion bent deformable and configure, rod through the cord causes the rod through the cord projecting and retracting Leaving
The mechanism is attached to the machine body, and this string passing rod retracting mechanism and string supply
A hollow guide body is installed to guide the string rod between the needles.
Then, the stringing rod is fed out by the stringing rod withdrawal mechanism.
By operating the section, return the drawn stringing rod
Together constitute more retractable to unwind operation release biasing to retract the parts, the cord insertion rod lies in that is configured to retract the cord insertion rod which is biased backward by forming a stopper to a predetermined position. The action and effect are as follows.

[0005]

That is, as described above, the bendable deformable string threading rod having the string engaging portion at the tip is the string threading rod mounted on the machine body.
So that it can be fed out by operating the feeding operation section of the retracting mechanism
Therefore, the machine body with the string locked to the locking part
Operation of the string-pulling rod retracting mechanism arranged at the fixed position
The string can be sent out with the feeding rod simply by operating the section.
You can Then, just extend the bendable string rod
So, even if the string is soft, or even if the string-passing rod hollow guide body is bent, the string-passing rod deforms along with the string-passing rod hollow guide body and advances. The string is sent by this string passing rod and reaches the outlet of the hollow guide body of the string passing rod. Here, if the outlet of the string-passing rod hollow guide body is installed in the vicinity of the string-passing hole of the cord-supplying needle so as to face each other, the string sent out together with the string-passing rod from the outlet of the hollow guide body is directly attached to the needle. It is inserted through the string hole. Then, by operating the feeding operation section of the stringing rod.
By releasing it, the stringing rod becomes a backward biasing force by the return part.
More automatically retracts to a stopper formed on the stringing rod
The tip of the stringing rod is stored up to a predetermined position.

[0006]

As described above, according to the present invention,
Lock the string on the string locking part at the end of the string threading rod and pull out the string threading rod.
The string can be passed through simply by operating the feeding operation section of the retracting mechanism.
Bendable and deformable string that moves along the hollow rod guide body
Since it is locked by the threaded rod and sent to the exit side, string threading work
It is extremely easy to use, and even with a soft string with a weak waist,
Further, even if the string supply path is bent, the string can be reliably and quickly led out through the hollow guide body to the needle side from the predetermined outlet. Also, the stringing rod is extended.
When the squeezing operation is released, the retracting force of the return section automatically retracts.
Then use the stopper to move the string rod to the specified position.
Since the accommodated, can be shortened total time required for the operation through the cord immediately becomes easy to proceed to the next bundling operation, also through the new string operations also easily performed, easily work through more straps It can be performed easily and is effective for improving the efficiency of the whole binding work. As described above, according to the present invention, stringing, which has been troublesome for the operator, can be performed reliably and quickly,
The stringing work can be simplified and the binding work can be performed.
The overall work efficiency can be improved .

[0007]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 7, a raising device 3, a reaping device 4, and a binding device for tying and releasing the cut grain culms to the right side of the machine body, which is driven by a pair of left and right traveling wheels 2 having an engine 1 mounted on the rear side of the machine body. A is attached to form a binder. As shown in FIGS. 3 and 6, the binding device A is
A knot building 5a, a knot part 5 including a string holder 5b, a string supply needle 7 for winding a string 6a for bundling around a grain culm, a revolving door 8 and the like, and is placed in a string storage part B behind the machine working part. The cut grain culms are bundled by the string 6a fed from the wound string 6 and the bundled grain culms are discharged to the outside of the machine by the rotation of the rotary door 8. And the string receiving portion B, and between the distal end cord insertion hole 7a of the needle 7 in a retracted stop position, respectively front opening 9a, to form the rear end opening 9b, the rod guide pipe 9 through the cord was bent molded A hollow guide body is provided to form a string supply path.

As shown in FIG. 1, FIG. 2, FIG. 3, FIG. 5 and FIG. 6, in the binder, when the winding cord 6 is replaced,
A string threading device C is provided for threading the string 6a from the winding string 6 through the guide pipe 9 into the distal end string threading hole 7a of the needle 7.

[0009] To explain, the string threading device C comprises a strip plate steel bendable deformable string threading rod 10 having a V-shaped string engaging portion 10a formed in a notch at its tip, and this string threading rod 10. It is composed of a string passing rod withdrawing / retracting mechanism D for retracting and retracting the string passing rod 10, a string loading section 11 and a string passing rod guide pipe 9, and further, the string passing rod withdrawing / removing mechanism D includes the string passing rod 10
And a rewinding portion 13 that is directly connected to the rotation shaft 12a of the storage portion 12 and that urges the threading rod 10 to wind in the direction in which the threading rod 10 is wound up. , A pair of upper and lower feeding rollers 14a, 14b for feeding the stringing rod 10 by the driving rotational force thereof, a gear shifting unit 16 for decelerating the driving force from the electric motor 15 and constantly driving the upper roller 14a for rotation, an upper roller And a coil spring 1 for frictionally transmitting the driving force from the gear shifting unit 16.
7. The lower roller 14b is supported by free rotation and the shaft 18
An arm 19 pivotally attached to the arm 19, attached to the arm 19,
It is composed of a spring 20 for urging the lower roller 14b downward, and an operation lever 21 attached to the end of the shaft 18 as a feeding operation section .

Then, as shown in FIG. 1, the cord 6a from the winding cord 6 is inserted into the cord loading opening 11a formed in the cord loading portion 11 in a posture crossing the advancing direction of the rod 10. After that, as shown in FIG.
1 is operated to a position to be operated to a position indicated by (ON) in the figure, so that the string 6 locked to the string locking portion 10a of the string threading rod 10
a is inserted into the stringing rod guide pipe 9 together with the stringing rod 10. Further, thereafter, the lock of the string 6a is released and the operation lever 21 is returned to the position shown in the figure (off), whereby the string threading rod 10 is automatically retracted by the operation of the rewinding portion 13. It is stored.

Incidentally, the retracted and retracted string threading rod 10 has a rivet-like stopper 22 provided at its tip end, and a string threading rod insertion hole Ca formed in the casing of the string threading device C is opened.
The position at the time of storage is determined by touching the opening edge of the. Further, the inner diameter of the threading rod guide pipe 9 is about 7 mm, and the threading rod 1
The width of 0 is set to about 5 mm, and further, as shown in FIG. 4, the stringing rod 10 is curved so that the cross-sectional shape thereof is an arc shape, and the stringing rod 10 guides the stringing rod 10 at the time of stringing.
The cord 6a does not bend, and the string 6a from the front end outlet 9a can be fed straight out and has a high section modulus.

Reference numeral 23 in the drawing is a brake for applying a braking force to the string 6a fed out from the winding string 6, and 24 is a slack remover for the string 6a, both of which are used when the string threading device C is operated. Is not used and is used when the binding device A is operated.

[Other Embodiments] In this embodiment, the strip plate steel is used for the stringing rod 10. However, instead of this, a spring wire, a resin rod, or other non-buckling material may be used. The feeding of the stringing rod 10 may be performed by the driving force of the engine 1 of the machine body or manually. The present invention may be configured such that the stringing rod withdrawal mechanism D is interlocked with a sensor or a timer to control the drive feeding amount thereof, thereby eliminating unnecessary feeding of the stringing rod and further improving the handling. Further, the present invention may be applied to a binding device equipped with a combine or a harvester in addition to the binder.

It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of the device.

FIG. 2 is a cross-sectional view of the device.

FIG. 3 is a schematic diagram of a state in which the device is operated.

FIG. 4 is a sectional view of a stringing rod.

FIG. 5 is a plan view of the tip of the stringing rod.

FIG. 6 is a perspective view showing the present device and the binding device.

[Fig. 7] Overall side view of the binder

[Explanation of symbols]

6 winding string 7 needle 7a string passing hole 9 string passing rod hollow guide body 9a outlet 10 string passing rod 10a string locking part 13 returning part 21 feeding operation operation part 22 stopper D string passing rod retracting mechanism

Continuation of the front page (56) Reference JP-A-56-32206 (JP, A) JP-B-55-21527 (JP, B2) JP-B-57-38979 (JP, Y2) US Patent 4054264 (US, A)

Claims (1)

[Claims] The string passing rod (10) is provided with a string locking portion (10a) at the tip so that it can be bent and deformed, and the string passing rod (10) is released.
Attach the stringing rod withdrawal mechanism (D) to retreat
Between the string threading mechanism (D) and the string supply needle (7)
A hollow guide body (9) for guiding the stringing rod is arranged in the
The threading rod (10) is fed out by the stringing rod withdrawal mechanism (D).
By the operation of the operation operation part (21)
The stringing rod (10) is biased backward by the returning portion (13).
It is configured so that it can be moved backward by releasing the feeding operation.
After forming a stopper (22) on the stringing rod (10),
Retract the stringing rod (10) that has been pushed back to a predetermined position.
A string threading device for a binding device having the above structure .