JP2505540Y2 - 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 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 transport guide plate, the work is troublesome for the operator. As a conventional technique for simplifying the stringing work,
There was a technique as described in JP-A-61-60413. However, in the prior art, the binding cord is conveyed by compressed gas, and the reliability of the cord conveyance is low.

As another conventional technique, Japanese Patent Laid-Open No. 61-1 is available.
The technique described in Japanese Patent Publication No. 04913 is known. In the prior art, there is disclosed a technique in which a binding string locked at the tip of a string-passing flexible rod passes through a string hole of a needle. Since there is no mechanism for locking the strap, there is an action that the binding string is placed in the return action of the string passing flexible rod after the string passing flexible rod momentarily passes through the string hole of the needle.
The tie string and the stringable flexible rod were separated.
However, since the state in which the tip of the string-placing flexible rod and the binding string are locked is a state in which the binding string in the double-folded state is hooked, the binding string is doubly attached to the portion of the string locking protrusion. Therefore, there is a problem that the binding cord is pulled back again from the cord hole when the cord locking projection is returned.

[0004]

DISCLOSURE OF THE INVENTION The present invention solves the above problems of the prior art and improves the uncertain method of transporting a binding cord by compressed gas. In addition, the binding string is locked by the string passing flexible rod, passed through the string hole of the needle, and after passing, the binding string is locked to the positioning piece, and the string passing flexible rod is temporarily stopped. In the configuration in which the operator manually removes the binding cord from the tip of the flexible rod, the positioning piece is the guide pipe 1.
As an extension that connects the tip opening of the needle and the string hole of the needle, it is configured so that the binding string does not come off due to the work of returning the string locking projection, and the binding string remains at the position where it has passed through the string hole securely. It is configured as follows.

[0005]

The object of the present invention is as described above. Next, the structure for achieving the object will be described.
The stringable flexible rod 4 is configured to be slidable in the storage pipe 2 and the guide pipe 1, and the end of the binding string M of the binding string tube A housed in the string case 32 is projected and moved. It is locked by a string locking projection 5 at the tip of the flexible rod 4, the string-passing flexible rod 4 passes through the inside of the guide pipe 1, and the string is passed through to the string hole 18a of the needle 18 arranged in the grain stem binding unit. In the configuration in which the path can be reciprocated, the tip end port on the needle 18 side of the guide pipe 1 and the positioning piece 25 of the binding cord M provided on the knot frame 27 of the grain culling binding portion are linearly connected to each other. With the stop projection 5 locking the binding string M , the binding string M and the string locking projection
5 is an opening of the string hole 18a of the needle 18 through which the needles 5 can pass simultaneously .

[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 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, 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 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 on the positioning piece 25 and sets it in the state of FIG.

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, 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 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 stringing handle 3 in a pulled-out state, and FIG. 8 is a locking portion 3b.
FIG. 9 is a side view showing a locking groove 14a capable of engaging with each other, and FIG. 9 is a plan sectional view showing a state in which the tip of the stringing flexible rod 4 has passed through the string hole 18a of the needle 18. As shown in FIG. 9, this configuration has a cord hole 1 of the needle 18 stored in an unbound state.
The tip end of the stringable flexible rod 4 is guided by the guide pipe 1 and is inserted and inserted into the guide pipe 8a. 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, the guide pipe 1
Of the needle, the string hole 18a of the needle 18, and the positioning piece 25
Are arranged on a straight line, the portion of the string locking projection 5 at the end of the string-passing flexible rod 4 is threaded with the positioning piece 25 at the end of the binding string M hooked at the tip of the binding string M. When returning after the end, the binding string M is no longer pulled back by the binding string M being caught on the stepped portion between the string locking protrusion 5 and the string passing flexible rod 4.

Secondly, at the position where the stringing flexible rod 4 and the binding string M are simultaneously threaded through the string hole 18a of the needle 18, the operator keeps that state and the operator manually operates. The cord is taken out and fixed to the positioning piece 25 of the knot cover, and the stringing flexible rod 4 can be retracted after these preparations are completed. You can do it.

Thirdly, not only can the user grasp and take out the binding cord M that has passed through the cord hole 18a of the needle 18, but can also perform the work such as pulling the door 28 in the next stroke in the same posture. The operator does not have to move back and forth in a sitting position, and can easily perform stringing work.

[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 a device for maintaining the stringing handle 3 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 flexible stringing rod (4) is configured to be slidable in a storage pipe (2) and a guide pipe (1), and an end portion of a binding cord (M) of a binding cord tube (A) accommodated in a cord case (32) is projected and moved. The threaded flexible rod 4 is locked by the string locking projection 5 at the tip of the threaded flexible rod 4, the threaded flexible rod 4 passes through the inside of the guide pipe 1, and the threaded hole of the needle 18 arranged in the grain bran bundling portion. in reciprocable with the configuration of cord passing route to 18a, the guide pipe 1 NEED
And the side of the tip opening of the Le 18, nodal frames of cereal稈結bundle 27
While the line connecting the positioning piece 25 in a straight line of the binding string M which is provided, the cord locking projection 5 which locks the binding string M, the binding string
A string threading device in a grain culm bundling part, wherein a string hole 18a of a needle 18 through which M and the string locking projection 5 can pass at the same time is opened.