JP2505541Y2 - 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 to provide a technique for facilitating threading through a string braking device at a grain culm bundling portion such as a binder.

[0002]

2. Description of the Related Art When stringing a binder or the like, it is necessary to pass a string cord through a string brake device, a slack removing rod, a string guide rod, etc., and finally through a string hole of a needle of a binding part. However, since the work is complicated and it is necessary to perform the work in a narrow position below the binder conveyance guide plate, the work is troublesome for the operator. As a conventional technique for simplifying the stringing work, there are JP-A-61-104913 and JP-A-54-732.
There are techniques such as those described in Japanese Patent Laid-Open No. 25 and Japanese Patent Laid-Open No. 61-60413.

However, in the technique disclosed in Japanese Patent Laid-Open No. Sho 61-104913, the cord case and the leaf spring are connected to each other before the binding cord is engaged with the string-passing flexible rod constituted by the leaf spring. A string brake device was arranged between the locking part and this part, and the operator had to manually thread the part. Further, the above-mentioned JP-A-61-1
In Japanese Patent No. 60413, the binding cord is conveyed by compressed gas, and the reliability of the cord conveyance is low.

[0004]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems of the prior art. In the prior art, the string passing through the string brake device, which was manually performed by the operator, is flexible. The operation is automatically performed in conjunction with the passage of the rod, and the operator only operates the string passing handle 3 to automatically perform the operation of passing the string brake device.

[0005]

The object of the present invention is as described above. Next, the structure for achieving the object will be described.
A string case 32, a feeding mechanism 24 of the string-placing flexible rod 4 provided with a string locking projection 5 at the tip, and a binding string M for the string locking projection 5.
In the string threading device in the grain culm bundling section in which the guide pipe 1 through which the stringing flexible rod 4 passes in the state of being locked, is arranged between the feeding mechanism 24 and the guide pipe 1.
The cord brake device 10 and the slack removal rod 7 are interposed, and
Connect the rake device 10 and the slack removal rod 7 to the string locking protrusion 5.
With the tie string M locked, the tie string M and the stringable flexible rod 4
It passes at the same time .

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The purpose and construction of the present invention are as described above. Next, the construction and operation of the embodiment shown in the accompanying drawings will be described.
1 is a plan view of a binder provided with a string threading device, FIG.
FIG. 4 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.

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
The bundling clutch door 28 of No. 8 is 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 through 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.

Next, based on the drawings of FIGS. 2, 3 and 4,
The structure of the main part of the present invention will be described. 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. A 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 operation handle 13, the recoil shaft 15 is rotated and the flexible rod feeding wheel body 6 is driven. When the operator releases the stringing handle 3, the lever connecting portion 3a and the stringing handle 3 are unwound by the unwinding force of the recoil spring in the feeding mechanism 24. 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,
The flexible rod 4 is engaged with the stringable flexible rod 4 by both the ring 6 and the guide roller 8.

In the present embodiment, the stringing 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 feed. The stringing flexible 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 attached to 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.

The storage pipe 2 is divided into front and rear at an engaging portion with the flexible rod feeding wheel body 6, and the rear storage pipe 2b has a role of completely storing the flexible rod 4 through which the string is passed. The front part storage pipe 2a has a set groove 2c in which the binding string M and the string locking projection 5 are set in a notched groove shape. The set state of the binding string M in the set groove 2c is configured as shown in FIG. The string locking projection 5 fixedly provided at the tip of the string-placing flexible rod 4 is provided with the string-placing flexible rod 4.
In the state of being unwound by the feeding mechanism 24, it is housed in the rear of the set groove 2c in the front housing pipe 2a as shown in FIG.

A string guide plate 23 is arranged at the front end of the support plate 14, and the string guide plate 23 guides the binding string M pulled out from the binding string tube A of the string case 32 and the binding string M.
Is passed through the guide hole 23a of the string guide plate 23 and 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 string 18a of the needle 18 is threaded, the binding string M must pass through the string braking device 10 and the slack removing rod 7 for eliminating a binding error due to slack, and this operation is also a string threading handle. It is configured so that it can be automatically performed by pulling 3. That is, the string guide plate 23
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 the device, and the cord M is pressed by the cord brake device 10 and the brake roller 12. As a result, the friction braking force acts. Reference numeral 20 denotes a braking force adjusting handle of the braking spring 19.

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. 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.
It is necessary to pass between the two, but since it is impossible to pass in the braking state, a device for releasing the cord brake 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 fixed to the brake roller shaft 22 of the brake roller 12, and the brake release cam 21 is moved to the upper end of the brake roller shaft 22 by the rotation of the string passing lever 9, and the lower end is pivotally supported. The upper end of the cord brake device 10 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 eliminating rod stopper 11 is provided on the opposite side of the slack eliminating rod 7 so that the slack eliminating 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. It is arranged on the side surface of the guide pipe 1. In the case of threading with this structure, first, the threading arrangement lever 9 is rotated to bring the threading state as shown in FIG. 3, and the binding thread M is set at the position of the setting groove 2c of FIG. By pulling the through 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 the string braking device 10 in the opened state is passed through to concentric. Passing through the slack eliminating rod 7 arranged at a circular position, being guided in the guide pipe 1, exiting in a direction substantially perpendicular to the tip of the needle 18, and passing through the cord hole 18a, the stopper 4a
Thus, the projecting state of the stringable 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 a positioning piece 25 fixedly provided at the right end of the knot frame 27 to accurately determine the position, and the terminal end is in the stored state. It is hooked on the locking piece 26 provided on the crank arm portion for driving the discharge rod 29 and stopped. In this state, pull the binding clutch door 28 to put in the clutch,
When the binding action is performed in the empty state, the binding string M is guided by the needle 18 to the knot building 30 and the knot holder 31 in the knot frame 27, and the knot holder 31
It creates the state of being held at. 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, and 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 that winds up the lever connecting portion 3a, and is pulled inside when the stringing handle 3 is pulled to accumulate energy,
It is composed of a recoil spring 24b that operates to wind the lever connecting portion 3a around the wire pulley 24a by the energy when the stringing handle 3 is released. 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 on the recoil shaft 15, and a string-placing lever 9 is fixed to 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 a device for maintaining the string-threading handle 3 in a pulled-out state, FIG. 8 is a side view showing a locking groove 14a capable of engaging the locking portion 3b, and FIG. 9 is a string. FIG. 7 is a plan sectional view showing a state in which a tip of a through flexible rod 4 has passed through a cord hole 18 a of a needle 18. This configuration is as shown in FIG.
String hole 18a of the needle 18 stored in the unbound state
In addition, the tip end of the stringable flexible rod 4 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 has to pull the string-threading handle 3 as much as possible to maintain the state of FIG. is there.

In this structure, the engaging groove 14a is provided in a part of the guide tube 14b through which the lever connecting portion 3a passes, and the engaging portion 3b is provided at the final stroke position of the lever connecting portion 3a.
Is provided, and with the locking portion 3b pulled out, the locking groove 14
It can be locked to a. When the lever connecting portion 3a is fully wound into the feeding mechanism 24, the guide tube 14b also comes into contact with the stringing handle 3 to prevent the winding of the feeding mechanism 24 further. .

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, the string hole 18
The tip of the binding string M that has passed through a is grasped, 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 stringing handle 3 is returned to its original position, the stringing 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 string M on the string holder 31. .

[0022]

Since the present invention is constructed as described above, it has the following effects. First, as in the past,
When the cord brake device and the slack removal rod are arranged between the cord case and the automatic cord threading device, the cord string passing through the cord brake device and the slackness removal rod has the binding cord M which is easy to bend. Since it had to be done manually, it was a troublesome operation. In the present invention, a cord brake device 10 and a slack removing rod 7 are provided in a path through which the cord locking protrusion 5 passes the cord M in a locked state. When the binding cord M is in the locked state, the binding cord M and the string-passing flexible rod 4 can be passed at the same time, so that the operator separately holds only the binding cord M, and the binding cord M in a flexible state is It is no longer necessary to operate the brake device 10 and the slack removal rod 7.

Secondly, the string locking protrusion 5 pulls the string 18
After the work of passing through the cable is finished, the flexible rod 4 through which the string is slackened is removed.
Passes through the string brake device 10 and returns to the initial position
The slack removal rod 7 and the string brake device 10
Since it takes up and brakes, when binding,
The binding string M does not have any slack and performs a reliable binding operation.
You can do it.

[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 the feeding mechanism.

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)

(57) [Scope of utility model registration request] 1. A cord case 32, a string-pulling-out mechanism 24 for a string-placing flexible rod 4 provided with a string-locking projection 5 at its tip, and a string-placing member 5 which can be threaded with the binding string M locked therein. In the string threading device in the grain culm bundling part in which the guide pipe 1 through which the flexible rod 4 passes is sequentially arranged, the string brake device 10 and the slack removing rod 7 are provided between the feeding mechanism 24 and the guide pipe 1.
The cord brake device 10 and the slack removing rod 7 are
With the binding string M locked to the locking projection 5, the binding string M and the string
A string threading device in a grain culm bundling part, wherein the through flexible rod 4 passes at the same time .