JPH0649153Y2 - String threading device for binding unit of grain culm - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION The object of the present invention is a technique for facilitating string threading in a binding part for grain culms such as a binder.

[0002]

2. Description of the Related Art When passing a binder or the like through a cord, it is necessary to pass the cord through a cord braking device, a slack removing rod, a cord guide rod, etc., and finally through a cord hole of a needle of a binding portion. Since the procedure is complicated and the work needs to be performed at a narrow position below the binder transport guide plate, the work is troublesome for the operator. As a conventional technique for simplifying the stringing operation, a technique described in Japanese Patent Laid-Open No. 61-104913 is known. In the prior art, a flexible stringing rod made of a leaf spring is sandwiched by a pair of upper and lower rollers so that it can be housed in a projecting manner, and since the pair of upper and lower rollers are also driven by an electric motor,
There was a problem such as the need to install a battery in the binder.

[0003]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems of the prior art, in which a cord M is attached to the cord locking projection 5 at the tip of the cord passing flexible rod 4 operated by the cord passing handle 3. And the string hole 18a of the needle 18 can be threaded through the guide pipe 1 in this state.
The slack removal rod 7 at the portion where
At the same time, the cord braking device 10 is provided with a cord passing arrangement lever 9 for switching to the passing state of the cord passing flexible rod 4.

[0004]

The problems to be solved by the present invention are as described above. Next, the means for solving the problems will be described. That is, by operating the stringing handle 3, the flexible rod feeding wheel 6 is rotated, and the stringing flexible rod 4 engaged with the outer periphery of the flexible rod feeding wheel 6 is stored in the storage pipe 2 and the guide pipe 1. The end portion of the binding cord M of the binding cord tube A, which is slidable inside and is stored in the cord case 32, is locked by the cord locking projection 5 at the tip of the string-passing flexible rod 4 which is projected and moved. The flexible string rod 4 is configured such that the flexible string rod 4 passes through the inside of the guide pipe 1 and the string passage path to the string hole 18a of the needle 18 arranged in the grain culm bundling portion is reciprocable. In order to allow the string locking projection 5 at the tip of 4 to pass the binding string M in a locked state, the string release device 7 is released by the operation of the brake release cam 21, and the slack removal rod 7 is threaded through the flexible rod. 4 to move from the slack removal position away from the passage route of 4 to the passage route of the flexible rod 4 It is provided with a placement lever 9.

[0005]

[Operation] Next, the operation will be described. When the operator runs the string, first, the user operates the string placement lever 9 to release the string brake device 10 to open a gap through which the stringable flexible rod 4 can pass, and further to loosen the slack removing rod 7. It returns and moves to the central position of the guide pipe 1. When the string passing handle 3 is operated in this state, the string passing flexible rod 4 is slidably projected from the storage pipe 2, and the binding string M is engaged with the string locking protrusion 5 at the tip of the string passing flexible rod 4. , String brake device 10
It passes through the slack removing rod 7. And a binding string M
While passing through the string hole 18a of the needle 18, the string passing handle 3 is fixed, only the binding string M is taken out and held in the knot building, and the string passing flexible rod 4 operates the string passing handle 3. Bring it back. Finally, the string passing arrangement lever 9 is operated to return the string brake device 10 and the slack removing rod 7 to the bundling workable state.

[0006]

EXAMPLES Next, examples will be described. 1 is a plan view of a binder provided with a stringing device, FIG. 2 is a plan view of the stringing device in a string set state, FIG. 3 is a plan view of a stringing completed state, and FIG. 4 is a state of the stringing device part. It is a top view shown.

The overall configuration will be described with reference to FIG. The binder has a raising device B arranged at the front end thereof.
A conveyance guide plate C is provided upright on the rear part of the rear side to guide the cut grain culms to the side. A binding device is arranged below the raising device B and the conveyance guide plate C, and the needle 1
8 and the binding clutch door 28 are arranged near the transport passage. The cord case 32 is arranged above the mission device between the engine E and the transport guide plate C, and the binding cord cylinder A is placed on the cord case 32. The end portion of the binding cord M is taken out from the binding cord cylinder A and threaded up to the cord hole of the needle 18.

The stringing device of the present invention is fixed on the right frame of the operating handle 13. The storage pipe 2 is arranged along the right side portion of the operation handle 13, and the rear portion of the flexible rod 4 through which the string is threaded is stored in the storage pipe 2. 29 is a discharge rod of the binding device. 2 and 3
The structure of the main part of the present invention will be described with reference to the drawing of FIG. A support plate 14 is fixed on the operation handle 13. A feeding mechanism 24 is arranged on the lower surface of the support plate 14. Lever connecting portion 3a for operating the feeding mechanism 24
Is projected in a direction perpendicular to the operation handle 13. A string threading handle 3 is fixed to the end of the lever connecting portion 3a.

By pulling the stringing handle 3 in the direction perpendicular to the operating handle 13, the recoil shaft 15 is rotated and the flexible rod feeding wheel 6 is driven. When the operator releases the stringing handle 3, the feeding mechanism 2
The rewinding force of the recoil spring in 4 rewinds the lever connecting portion 3a and the stringing handle 3. When the string-placing handle 3 is pushed and pulled, the string-placing flexible rod 4 is unwound by the rotation of the flexible rod unwind wheel 6. A guide roller 8 is arranged close to the circumference of the flexible rod feeding wheel body 6, and the stringing flexible rod 4 is engaged by both the flexible rod feeding wheel body 6 and the guide roller 8. It is something that is paid out.

In the present embodiment, the stringable flexible rod 4 has a structure in which a screw projection is wound around the outer circumference of the wire, and the tooth portion of the flexible rod feeding wheel body 6 which is also formed in a gear shape on the screw projection. It is configured to mesh and extend. The flexible threaded rod 4 has a function of being pulled out by hooking the binding cord M from the storage pipe 2 toward the guide pipe 1 by the rotation of the flexible rod feeding ring 6, and is also arranged in a meandering manner. It is necessary to have flexibility in order to pass through the inside of 1 while bending. Therefore, the stringable flexible rod 4 may be any rod as long as it has a rigidity that is not defeated by the resistance of the binding cord M, and has a property of bending along the bending of the guide pipe 1.

In this embodiment, a screw projection is provided on the outer circumference of the wire, but a synthetic resin rod may be fed out by friction, or a toothed portion may be provided to form a rack. Further, the flexible rod feeding wheel body 6 may also be a synthetic resin gear or a friction body. Storage pipe 2
Is divided into front and rear at an engaging portion with the flexible rod feeding wheel body 6, the rear storage pipe 2b serves to completely store the stringing flexible rod 4, but the front storage pipe 2a is Set groove 2c for setting the binding string M and the string locking projection 5
Is formed in the shape of a cutout groove. The set state of the binding string M in the set groove 2c is configured as shown in FIG.

As shown in FIG. 2, the string retaining projection 5 fixedly provided at the tip of the flexible string rod 4 is in a state in which the flexible string rod 4 is unwound by the unwinding mechanism 24 as shown in FIG. It is accommodated in the rear of the set groove 2c. Support plate 14
A cord guide plate 23 is arranged at the front end of the cord guide plate 23, and the cord guide plate 23 guides the binding cord M pulled out from the binding cord tube A of the cord case 32, and the binding cord M guides the cord guide plate 23. It passes through the hole 23a and is inserted into the guide pipe 1. The guide hole 23a is provided with an arcuate guide surface in the pulling-out direction so that the cord is not hooked.

Before the binding cord M is threaded through the cord hole 18a of the needle 18, it is necessary to pass through the cord brake device 10 and the slack removing rod 7 for eliminating a binding error due to slack, and this operation is also performed. It is configured so that it can be automatically performed by pulling the handle 3. That is, the string guide plate 2
The cord brake device 10 and the brake roller 12 are arranged in a pressed state by the braking spring 19 at a position immediately before exiting the guide hole 23a of No. 3, and the binding cord M is pressed by the cord brake device 10 and the brake roller 12. As a result, the friction braking force acts. 20 is a braking spring 19
It is a braking force adjustment handle.

Next, the structure of the slack eliminating rod 7 will be described. The slack removing rod 7 has a structure in which the front and rear ends of the binding cord M are locked and the central portion thereof is pulled by a ring-shaped rod having a spring force. In the present invention, the guide pipe 1 is rear portion. Guide pipe 1b and front guide pipe 1a
The binding cord M is taken out in the direction of the slack removing rod 7 from the dividing portion. Therefore, the slack removing rod 7
It is necessary to arrange the ring portion at a position separated from the guide pipe 1, and it is difficult to pass the stringing flexible rod 4 through the slack eliminating rod 7. Therefore, when stringing, it is necessary to arrange the slack eliminating rod 7 concentrically with the guide pipe 1.

Further, the string-passing flexible rod 4 and the string-locking projection 5 at the tip of the flexible-rod 4 are connected to the string brake device 10 and the brake roller 1.
Although it is necessary to pass between the two, it is impossible to pass in the braking state, so that a device for releasing the cord braking device 10 at the time of threading the cord is provided.
At the same time that the cord brake device 10 is released, when the slack removing rod 7 is threaded, a device for rotating the guide pipe 1 to the concentric position is arranged. That is, the string passing lever 9 has this function. The string passing lever 9 is fixed to the arm 16 pivotally supported by the recoil shaft 15. By rotating the string passing lever 9,
The arm 16 rotates, and the set arm 17 engaged with the arm 16 rotates.

The set arm 17 is a brake roller 12
Is fixed to the brake roller shaft 22, and the brake release cam 21 is fixed to the upper end of the brake roller shaft 22. The brake release cam 21 moves by the rotation of the string passing lever 9, The upper end of the string brake device 10 pivotally supported at the lower end is opened. The brake releasing cam 21 allows the string locking projection 5 and the string-passing flexible rod 4 to pass through the space where the string brake device 10 is opened.

At the same time, a winding spring portion which constitutes the base of the slack removing rod 7 is fixed to the brake roller shaft 22.
The slack removing rod 7 is rotated by the string passing lever 9,
As shown in FIG. 3, the guide pipe 1 is rotated to a concentric position. The slack removal rod stopper 11 is provided on the opposite side of the slack removal rod 7 so that the slack removal rod 7 supported by the winding spring does not go over the concentric position of the guide pipe 1 by the rotation of the string passing lever 9. Is arranged on the side surface of the guide pipe 1. With this configuration, when threading the string, first, the string threading lever 9 is rotated to bring the string threading state as shown in FIG. 3, and the binding string M is set at the position of the setting groove 2c of FIG. By pulling the string passing handle 3, the string passing flexible rod 4 and the string locking protrusion 5 are pushed out from the storage pipe 2, the binding string M is hooked at the tip, and passes through the open string braking device 10, It passes through the slack removal rod 7 arranged at a concentric position, is guided in the guide pipe 1, exits in a direction substantially perpendicular to the tip of the needle 18, and is threaded by the stopper 4a at the position passing through the cord hole 18a. The protruding state of the flexible rod 4 is stopped.

The operator takes out the binding cord M that has passed through the cord hole 18a, hooks it in the state of FIG. 4, and sets it. FIG. 4 shows a plan view of the binding device portion, in which the binding string M is locked to the positioning piece 25 fixedly provided at the right end of the knot frame 27 to accurately determine the position, and the end is the discharge rod 29 in the stored state. It is hooked on the locking piece 26 provided on the driving crank arm to be stopped. When the binding clutch door 28 is pulled in this state and the clutch is put in and the binding action is performed in the empty state, the binding string M is moved by the needle 18 to the knot building 30 and the knot holder 31 portion in the knot frame 27. The state in which M is guided and held in the knot holder 31 is created. After that, the end of the binding string M cut by the string cutting blade is pulled by the rotation of the discharging rod 29, so that the string threading operation is completed if it is removed from the locking piece 26 and removed. 33 is a packer.

FIG. 5 is a side sectional view of the feeding mechanism section, and FIG.
FIG. 6 is a rear view of a portion of the support plate 14 and the string passing lever 9. The support plate 14 is fixed on the operation handle 13, and the feeding mechanism 24 is arranged inside. The feeding mechanism 24 is arranged inside the wire pulley 24a for winding the lever connecting portion 3a, and when the string passing handle 3 is pulled, it is taken up to accumulate energy, and when the string passing handle 3 is released, the lever is driven by the energy. The recoil spring 24b is configured to wind the connecting portion 3a around the wire pulley 24a. The wire pulley 24a is fixed to the recoil shaft 15, the recoil spring 24b has an outer end fixed to the wire pulley 24a, and an inner end fixed to a part of the support plate 14.

An arm 16 is pivotally supported by the recoil shaft 15, and a string threading lever 9 is fixedly mounted on the arm 16. A guide groove 14a for maintaining the operation state of the string passing lever 9 is formed on the rear surface of the support plate 14. Reference numeral 34 is a cover of the feeding device. FIG. 7 is a plan sectional view showing an apparatus for maintaining the stringing handle 3 in a pulled-out state, which is a main part of the present invention, and FIG. 8 is a side view showing a locking groove 14a capable of engaging the locking portion 3b, FIG. 9 is a plan cross-sectional view showing a state in which the tip of the flexible string rod 4 has passed through the string hole 18 a of the needle 18.

According to the present invention, as shown in FIG. 9, the flexible rod 4 is passed through the string hole 18a of the needle 18 which is stored in an unbound state.
The tip of is guided by the guide pipe 1 and is inserted and inserted. In this state, the tip of the binding string M is in a double-folded state in which it is locked by the string locking projection 5, so if the string-passing flexible rod 4 is retracted as it is, the frictional force with the string locking projection 5 is increased. Therefore, the binding string M may be pulled back into the guide pipe 1 again.

Therefore, the operator pulls the string threading handle 3 fully to maintain the state shown in FIG.
Therefore, it is necessary to pull out the binding cord M from it and hold it by the knot holder 31. In the present invention, the guide tube 14 through which the lever connecting portion 3a passes
The engaging groove 14a is provided in a part of b, and the lever connecting portion 3a
The locking portion 3b is provided at the final stroke position of
In the state where b is pulled out, it can be locked in the locking groove 14a. When the lever connecting portion 3a is fully wound into the feeding mechanism 24, the guide tube 14b also has a role of contacting the stringing handle 3 and preventing further winding of the feeding mechanism 24. .

The steps of the stringing operation in the above structure will be described. First, pull the string passing lever 9 to the outside of the machine to set the binding string M in the string setting groove 2c. Next, the stringing handle 3 is pulled fully, and when the flexible stringing rod 4 has passed through the string hole 18a of the pipe 1 and the needle 18, the lever connecting portion 3a is locked by the locking groove 14a. Next, string hole 1
The tip of the binding string M that has passed through 8a is gripped, the string is fixed to the positioning piece 25 of the knot cover, and the tip is fixed to the locking piece 26 provided on the crank portion of the discharge rod 29. Next, the string handle 3
, The cord passing arrangement lever 9 is returned to the inside of the machine body, the door 28 is pulled to engage the clutch, and the needle 18 is rotated to grip the binding cord M on the cord holder 31.

[0024]

Since the present invention is constructed as described above, it has the following effects. That is, firstly, as in the prior art, the binding string is locked at the tip of the flat spring,
When the distance to the needle is conveyed, the stringing flexible rod may be bent by the frictional force of the binding string, but in the present invention , the stringing flexible rod 4 is replaced with the flexible rod feeding wheel body 6.
Since the rod is configured to engage with the outer circumference, the binding cord can be conveyed by a strong pushing force. Further, unlike the conventional case, the flat spring is not sandwiched between the upper and lower rolls and conveyed, but the flexible rod feeding wheel 6
Since the outer periphery and the threaded flexible rod 4 are conveyed in the engaged state,
This also made it possible to obtain a strong carrying force.

Secondly, before the projecting of the stringing flexible rod 4 by the stringing handle 3, the stringing arrangement lever 9 is pivotally operated to release the string braking device 10 and to remove the slack removing bar 7. Since it is possible to move to the passing position of the stringing flexible rod 4, it is not necessary to perform a pinching operation on the string braking device or a locking operation to the slack removing rod 7 before or after the stringing operation. is there.

[Brief description of drawings]

FIG. 1 is a plan view of a binder provided with a string threading device of the present invention.

FIG. 2 is a plan view of a string threading device, which is a main part of the present invention, in a string set state.

FIG. 3 is a plan view showing a state where the stringing is completed.

FIG. 4 is a plan view showing a state of a cord in the binding device section.

FIG. 5 is a side sectional view of a feeding mechanism section.

FIG. 6 is a rear view of a portion of a support plate 14 and a string passing lever 9.

FIG. 7 is a plan sectional view showing an apparatus for maintaining the stringing handle 3 which is the main part of the present invention in a pulled-out state.

FIG. 8 is a side view showing a locking groove 14a with which a locking portion 3b can be engaged.

9 is a string hole 1 of the needle 18 at the tip of the flexible rod 4
8a is a cross-sectional plan view showing a state of passing through 8a. FIG.

[Explanation of symbols]

 A Bundling cord cylinder M Bundling cord 1 Guide pipe 2 Storage pipe 3 String passing handle 3a Lever connecting part 3b Locking part 4 String passing flexible rod 4a Stopper 5 String locking projection 6 Flexible rod feeding ring 7 Folding rod 8 Guide roller 9 String passing lever 14 Support plate 14a Locking groove 14b Guide tube 24 Feeding mechanism

Claims (1)

[Scope of utility model registration request] 1. A flexible rod is operated by operating a stringing handle 3.
Rotate the feed ring body 6 and move it to the outer circumference of the flexible rod feed ring body 6.
The engaged string passing flexible rod 4 is configured to be slidable in the storage pipe 2 and the guide pipe 1, and the end of the binding cord M of the binding cord cylinder A accommodated in the cord case 32 is moved to protrude. It is locked by the string locking projection 5 at the tip of the string-passing flexible rod 4, the string-passing flexible rod 4 passes through the inside of the guide pipe 1, and up to the string hole 18a of the needle 18 arranged in the grain culm bundling portion. In the reciprocating structure of the cord passing path, the operation of the brake release cam 21 is performed so that the cord locking protrusion 5 at the tip of the string-passing flexible rod 4 can pass while the binding cord M is locked. String brake device
10 is released, the slack removal rod 7 is passed through, and the flexible rod 4 is passed.
From the slack removal position away from the route, the string-passing flexible rod 4
A string threading device in a grain culm bundling part, comprising a string threading lever 9 for moving to a passage route .