JPH062489B2 - Binding device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a manual binding machine equipped with a rewinding device, which reduces the tilting force of the binding arm and shortens the pull-out length of the tape. The present invention relates to a binding device.

(Prior Art) As disclosed in, for example, Japanese Patent Laid-Open No. 57-125107, a conventional manual binding machine is provided with a tape rotatably attached to a base end portion of a binding arm provided on a substrate so as to be tiltable. The original winding is provided, and the binding tape is pulled out from the original winding tape along the binding arm, and the end of the binding tape is held by the tape holding portion,
A binding tape is held in a tensioned state between the holding portion and the tip of the binding arm.

Then, when binding the objects to be bound,
The pulled-out tape is rotated in a rewinding direction so as to give a tension to the tape (hereinafter referred to as back tension) and bind the objects to be bound with appropriate strength.

This back tension uses the up and down movement of the binding arm to rotate the original winding tape via a mechanism such as a gear mechanism or a lever, so that the original winding tape is usually the base end of the binding arm. It is provided in the section.

Further, Japanese Patent Application Laid-Open No. 55-126008 discloses an electric binding device, and the original winding tape of this electric binding device is provided in the vicinity of the tip of the binding arm, and the pull-out length of the tape is Is made as short as possible to improve the economical efficiency of the tape.

That is, if the length of the tape to be pulled out is long, dust and the like will adhere to the tape and the adhesiveness of the tape will deteriorate, so for example, cutting out the tape that has been pulled out before starting the binding work on the next day Has been done.

Further, since the power of the electric back tension is generated by the electric motor, the original winding tape can be provided at a relatively arbitrary position.

(Problems to be Solved by the Invention) In the above-mentioned conventional manual binding device, since the former winding tape is provided at the base end portion of the binding arm, there are the following problems.

In other words, the binding tape pulled out from the original winding tape is pulled out along the binding arm, and back tension is applied to the binding tape when binding, so that when the binding arm is tilted to bind the objects to be bound, Tensioned and strongly pulled tape will be tilted by squeezing the tape at the part that is pulled out along the binding arm, this tape is added as the force to tilt the binding arm Therefore, a great deal of force is required to tilt the binding arm.

As described above, when the force for tilting the binding arm becomes large, there is no problem with the electric type, but there is a problem that the labor of the operator is greatly consumed when working with the manual binding machine for a long time.

The present invention provides a bundling device that reduces the force required to tilt the bundling arm and shortens the tape pull-out length to improve economy.

(Means for Solving the Problems) Means for solving the above problems is a means for pivotally attaching a binding arm to a base through a support plate so that the binding arm can be tilted up and down. , The tape pulled out from the freely rotatable tape reel is wound around the object to be bound without applying back tension, and the winding end is crimped between the tip of the binding arm and the tape holder to bind the tape. In the manual binding device, a support is erected on the base, and the tape reel is located near the tip of the binding arm in a state where the binding arm is upright and independent of the binding arm. The support arm is rotatably supported, a hook is swingably provided at the base end portion of the binding arm, and a guide plate for guiding the swing of the hook is provided on the support plate. The support shaft is provided with a rotating body that is rotated by the swinging motion of the hook. In addition, a rotating body is provided on the supporting shaft of the tape reel, and the rotating body provided on the supporting shaft of the tape reel and the rotating body provided on the supporting shaft of the binding arm are connected via a connecting means to support the binding arm. The rotational force of the rotating body provided on the shaft is transmitted to the rotating body provided on the support shaft of the tape reel.

(Operation) Since the present invention is configured in this way, it has the following operations. That is, a hook is swingably provided at the base end portion of a bundling arm pivotally attached to a support plate provided on a base via a support shaft, and the swing of the hook is guided to the support plate. A guide plate for the binding arm, and a rotary body that is rotated by the swinging motion of the hook on the support shaft of the binding arm, while the support body is erected on the base, and the tape reel is attached to the binding arm. Is erected in the vicinity of the tip of the binding arm and is rotatably supported by the support body independently of the binding arm, and a rotating body is provided on the support shaft of the tape reel. The rotating body provided on the support shaft of the reel and the rotating body provided on the support shaft of the bundling arm are connected through a connecting means, and the rotational force of the rotating body provided on the support shaft of the bundling arm is supported by the support shaft of the tape reel. Since it is transmitted to the rotating body installed in the It is possible to prevent the tape reel from being pulled out along the arm, and since the tape reel is rotatably supported by the support body independently of the binding arm, the tape reel can be kept upright. The tape can be supported at any position near the tip of the binding arm, and the tilting force of the binding arm can be reduced, and a rotating body is provided on the support shaft of the tape reel. The rotating body provided on the support shaft of the reel and the rotating body provided on the support shaft of the bundling arm are connected through a connecting means, and the rotational force of the rotating body provided on the support shaft of the bundling arm is supported by the support shaft of the tape reel. Since it is transmitted to the rotating body provided on the tape, the tape can be back-tensioned by the tilting movement of the binding arm while allowing any supporting position of the tape reel.

(Example) An example of the present invention will be described below. As shown in FIGS. 1 to 3, a binding arm 2 pivotably attached to a base 1 and a tape reel provided independently of the binding arm 2 on the distal end side of the binding arm 2. 3, electric means for applying a rotational force in the rewinding direction to the tape reel 3 in association with the tilting movement of the binding arm 2, and the tape reel 3 installed on the base 1.
The tape holder 5 holds the end of the tape 4 pulled out from the tape holder.

These will be described in more detail below.
Has a base plate 1a and a support plate 1b installed on the base plate 1a, and the base end of the binding arm 2 is pivotally attached to the support plate 1b via a support shaft 6 so as to be able to move up and down. ing. A guide plate 7 is attached to the support plate 1b, and a lever 8 is rotatably attached to the support shaft 6. A roller 10 is rotatably attached to one end of the levy 8 via a pin 9, and the lever 8 is attached to a spring 11, that is, one end is attached to the pin 9 and the other end is via a pin 12. The elastic force is applied in the clockwise direction by the spring 11 attached to the guide plate 7.

A hook 13 is rotatably attached to the base end portion of the binding arm 2 via a pin 14, and the hook 13 has one end attached to the support shaft 6 and the other end via a pin 14 '. An elastic force is applied in the clockwise direction by a spring 15 attached to the hook 13, and the hook-shaped tip of the hook 13 is engaged with the peripheral surface of the roller 10.

On the other hand, a support 16 is erected on the substrate 1a, and its tip reaches the vicinity of the tip of the binding arm 2 when standing up. The tape reel 3 is rotatably attached to the tip of the support 16 via a support shaft 18. The support shaft
A ratchet wheel 19 is fixed to the wheel 18, and a rotating rod 20 is rotatably attached to the wheel 18.

As shown in FIG. 7, a pawl 21 engageable with a ratchet wheel 19 is rotatably attached to one end of the rotary rod 20 through a pin 22 provided upright on the rear surface of the rotary rod 20. ing. A coil-shaped spring 25 is inserted in this pin 22, and one end of the spring 25
1 is locked to a fixed pin 24 provided upright on the back surface of the rotating rod 20, the other end 252 is locked to the upper surface of the pawl 21, and the elastic force of the spring 25 keeps the pawl 21 counterclockwise, that is, The elastic force is applied in the direction of engaging the ratchet wheel 19. A bearing 23 is further attached to the support shaft 18, and a pin 26 is attached to the bearing 23.
Is fixed so that the base end surface of the claw 21 comes into contact with the pin 26 when the rotating rod 20 rotates clockwise as will be described later, whereby the claw 21 is made elastic by the spring 25. A counterclockwise turning force will be given. Furthermore, the above bearing
A stopper 27 is provided so as to project from 23, and the other end of the rotating rod 20 comes into contact with the rotating rod 20 when the rotating rod 20 is rotated clockwise.

One end of a connecting rod 28 is rotatably attached to one end of the rotating rod 20 via a pin 29, and the other end of the connecting rod 28 is attached to the other end of the lever 8 via a pin 17. It is attached rotatably.

In FIG. 3, reference numeral 30 denotes a braking portion of the tape reel 3, which is slidable with respect to the support shaft 18 like the friction plate 31 slidably inserted in the support shaft 18 of the tape reel 3. A pressing plate 32, a nut 33 screwed to the support shaft 18, and a coil spring 34 interposed between the pressing plate 32 and the nut 33,
The rotation of the tape reel 3 can be braked by moving the nut 33 in the tape reel 3 direction.

FIG. 6 shows another embodiment of the present invention, in which a first chain wheel 8A fixed to the support shaft 6 is used in place of the lever 8 and is fixed to the support shaft 18 in place of the rotary rod 20. 2nd chain car 20A
, And these chain wheels 8A, 20A are connected by a transmission chain 35, and other configurations are similar to those of the embodiment shown in FIG. That is, the roller 10 is attached to the first chain wheel 8A, and the roller 10 can be engaged with the hook 13. Further, a claw 21 is attached to the second chain wheel 20A, and the claw 21 can freely mesh with the claw wheel 19. Since this embodiment has such a configuration, when the first chain wheel 8A rotates, this rotational force is transmitted to the second chain wheel 20A via the transmission chain 35, and as a result, the second chain wheel 20A rotates. become. Therefore, it is possible to change the rotation angle of the second chain wheel 20A by changing the tooth number ratio of the first and second chain wheel 8A, 20A.

In addition, as clearly shown in FIG. 1 and FIG.
An elongated hole 36 whose longitudinal direction is parallel to the substrate 1a is formed in the lower part of the head, and the elongated hole 36 can be screwed into a screw hole (not shown) formed in the support 1b and can be screwed into the head. A screw 37, the diameter of which is larger than the width of the long hole 36, is inserted, and the tip of the screw 37 is screwed into the screw hole. Moreover, since the upper part of the guide plate 7 is rotatably attached to the support shaft 6, the guide plate 7 can be rotated by loosening the screw 37. When the guide plate 7 is rotated, the bulging portion 7a is also rotated, and the engagement time between the bulging portion 7a and the hook 13 is also changed according to the inclination of the guide plate 7. Therefore, by adjusting the inclination of the guide plate 7, it is possible to adjust the timing for releasing the engagement between the bulging portion 7a and the hook 13.

The operation of this embodiment having the above configuration will be described below.

In the standing state of the binding arm 2 shown in FIGS. 1 and 4, the object to be bound A is held on the tape 4 and pushed down in the direction of the placing plate B, and the object to be bound A is placed on the placing plate B. After that, when the binding arm 2 is tilted, the hook 13 starts rotating counterclockwise from the position indicated by the solid line as the binding arm 2 tilts.
The lever 8 which is engaged with the hook 13 via the roller 10 also has the hook 13
With the rotation of, the rotation will be counterclockwise from the position indicated by the solid line. When the lever 8 is rotated, the roller 10 is rotating, so that the lever 8 is rotated very smoothly.

By the way, the base portion of the hook 13 has a protruding portion 13 protruding in the same direction as the protruding direction of the tip of the hook portion of the hook 13.
a is formed, and the guide plate 7 is formed with a bulge 7a that bulges toward the direction of the protrusion 13a at the position indicated by the solid line, and when the binding arm 2 stands up, the protrusion 13a The inclined portion corresponding to the upper side portion is engaged with the inclined portion corresponding to the lower side portion of the bulging portion 7a. This engagement is held by applying the elastic force of the spring 15, so that the engaged state is maintained even when the hook 13 is rotated, and its engaging position only changes.

Thus, the guide plate 7 and the hook 13 each have the bulging portion 7a and the protruding portion 13a, and when the binding arm 2 is erected, the engaging positional relationship between the bulging portion 7a and the protruding portion 13a is both. As described above, the hook 13 is rotated around the pin 14 independently of the rotation of the binding arm 2 due to the tilting, and the binding arm 2 is laid down and the tape 4 is wound and crimped immediately before cutting. When the process is completed, the position shown by the alternate long and short dash line in FIG. 1 is reached. At this position, the engagement between the lever 8 and the hook 13 is released, as clearly shown in FIG.

On the other hand, with the rotation of the lever 8, the connecting rod 28 pivotally supported at the other end is lowered, so that the connecting rod 28 is
The pivoting rod 20 pivotally supported at one end of the claw 21 rotates counterclockwise from the position indicated by the solid line, and when the pivoting rod 20 pivots to some extent and reaches the position indicated by the alternate long and short dash line, the pawl 21 Meshes with the ratchet wheel 19, so that when the rotary rod 20 further rotates from this position, the ratchet wheel 19 rotates counterclockwise, and the tape reel 3 also rotates counterclockwise with this, so that the binding When the arm 2 is tilted, a rewinding force acts on the tape 4.

Then, when the binding arm 2 falls down and the pressure bonding of the tape 4 is completed, as described above, the hook 13 reaches the position indicated by the alternate long and short dash line, and at the same time, the lever 8 also reaches the position indicated by the alternate long and short dash line. In this state, the lever 8 and the hook 13 are disengaged from each other as shown in FIG. When the engagement between the lever 8 and the hook 13 is released in this way, the lever 8 is released from the restraint and becomes rotatable. As a result, the lever 8 is rotated clockwise by the restoring force of the spring 11. Return to the position indicated by the solid line.

As the lever 8 is linked with the return movement, the connecting rod 28 is raised. As a result, the rotating rod 20 is rotated in the clockwise direction, so that the pawl 21 is disengaged from the ratchet wheel 19, and the base end surface of the pawl 21 is further moved. Pin 26
When it comes into contact with the claw 21, the claw 21 rotates clockwise against the elastic force of the spring 25, so that the tip end of the claw 21 is further separated from the claw wheel 19.

In this way, when the binding arm 2 is laid down, the claw 21 is moved to the claw wheel 19 at the same time.
When the binding arm 2 stands up, it is detached from the tape reel 3
Is in a state in which it can freely rotate, so that no rewinding force acts on the tape 4.

On the other hand, as the binding arm 2 stands up, the hook 13 rotates clockwise, and when the binding arm 2 approaches the standing position,
When the hook-shaped portion of the hook 13 engages with the roller 10 and the binding arm 2 is further interlocked with the upright direction, the hook 13 rotates clockwise while rotating the roller 10, and when the binding arm 2 reaches the upright position. 13 reaches the position shown by the solid line.

Further, when the binding arm 2 is tilted in the embodiment shown in FIG. 6, the first chain wheel 8A accordingly rotates around the support shaft 6, and as a result, the transmission chain 35 moves counterclockwise in FIG. The second chain wheel 20A rotates in the counterclockwise direction due to the movement to, and the claw 21 engages with the claw wheel 19.

On the contrary, when the binding arm 2 is erected, the first chain wheel 8A rotates in the opposite direction to that described above, so that the second chain wheel 20A also rotates in the opposite direction to that described above. break away.
When the second chain wheel 20A rotates by a predetermined angle, the protrusion of the wheel 20A
20a comes into contact with the stopper 27.

Next, the operation of this embodiment will be described. A hook 13 is swingably provided at the base end of a bundling arm 2 pivotally attached to a support plate 1b provided on a base 1 via a support shaft 6 and the hook 13 is provided on the support plate 1b. A guide plate 7 for guiding the swing of the hook is provided, and the hook 13 is attached to the support shaft 6 of the binding arm 2.
Is provided with a lever 8 (rotating body) that is rotated by the swinging motion of
On the other hand, a support 16 is erected on the base 1, and the tape reel 3 is located near the tip of the binding arm 2 with the binding arm 2 standing upright and independently of the binding arm 2. A support rod 16 is rotatably supported, a support rod 18 (rotating body) is provided on a support shaft 18 of the tape reel 3, and a lever 8 is provided on the support rod 6 and the support shaft 6 of the binding arm 2. And the connecting rod 28 are connected to each other so that the rotational force of the lever 8 provided on the support shaft 6 of the binding arm 2 is transmitted to the rotating rod 20 provided on the support shaft 18 of the tape reel 3. It is possible to prevent the tape 4 drawn from the reel 3 from being drawn along the binding arm 2 and independently of the binding arm 2.
Since the tape reel 3 is rotatably supported on the tape reel 3, it is possible to support the tape reel 3 at an arbitrary position near the tip of the binding arm 2 while the binding arm 2 is standing upright. It is possible to reduce the tilting force of the binding arm 2, a pivot rod 20 is provided on the support shaft 18 of the tape reel 3, and a lever provided on the pivot rod 20 and the support shaft 6 of the binding arm 2. 8 is connected via the connecting rod 28, and the rotational force of the lever 8 provided on the support shaft 6 of the binding arm 2 is transmitted to the rotary rod 20 provided on the support shaft 18 of the tape reel 3. Back tension can be applied to the tape 4 by tilting the binding arm 2 while allowing any supporting position of the tape reel 3.

Further, since the tape reel 3 is located in the vicinity of the tip end of the binding arm 2 in the upright state by the support 16, the length of the tape pulled out from the tape reel 3 while the binding arm 2 is upright is short. .

As a result, when the binding arm 2 is tilted, the tape reel 3
The tape is strained by the rotation of the tape in the rewinding direction, but the frictional resistance between the tape and the guide roller is reduced by the length of the drawn tape, and the force required to move the binding arm 2 up and down is reduced. Become.

(Effects of the Invention) As described in detail above, according to the present invention, the hook can be swung on the base end portion of the binding arm pivotally attached to the support plate provided on the base through the support shaft so as to be movable up and down. A guide plate for guiding the swing of the hook to the support plate, and a rotating body that is rotated by the swing motion of the hook on the support shaft of the binding arm, while the guide plate is provided on the support shaft of the binding arm. A support is erected on the tape reel, and the tape reel is rotatably supported on the support independently of the binding arm, the tape reel being located in the vicinity of the tip of the binding arm with the binding arm standing upright. A rotating body is provided on the support shaft of the tape reel, and the rotating body provided on the support shaft of the tape reel and the rotating body provided on the support shaft of the binding arm are connected via a connecting means to provide a support shaft for the binding arm. The rotational force of the rotating body provided on the tape reel is transmitted to the rotating body provided on the support shaft of the tape reel. Since the tape pulled out from the reel can be prevented from being pulled out along the binding arm, and since it is rotatably supported by the support independently of the binding arm,
The tape reel can be supported at an arbitrary position in the vicinity of the tip end of the binding arm while the binding arm is standing, and the tilting force of the binding arm can be reduced. A rotating body of a reel supporting shaft is provided, and a rotating body provided on the supporting shaft of the tape reel is connected to a rotating body provided on the supporting shaft of the bundling arm through a connecting means so as to be provided on the supporting shaft of the bundling arm. Since the rotational force of the rotating body is transmitted to the rotating body provided on the support shaft of the tape reel, the back tension is applied to the tape by tilting the bundling arm while allowing the arbitrary supporting position of the tape reel. You can

As described above, even when the tape is bound while applying back tension, the force of tilting the binding arm is reduced, and the length of pulling out the tape can be shortened to reduce the waste of the tape.

[Brief description of drawings]

1 is a front view of the device according to the present invention, FIG. 2 is a view seen from the line II-II of FIG. 1, FIG. 3 is a detailed view of the tape reel portion, and FIG. 4 is a binding arm. FIG. 5 is a schematic view of the base end portion when standing up, FIG. 5 is a schematic view of the base end portion when the binding arm is lying down, FIG. 6 is a front view showing another embodiment of the present invention, and FIG. It is an enlarged view of the tape reel part of FIG. 1 ... Base 2 ... Bundling arm 3 ... Tape reel 4 ... Tape 5 ... Tape holder 6 ... Support shaft 8 ... Lever 8A ... Chain 18 ... Support shaft 20 ... Rotating rod 20A …… Chain wheel 28 …… Connecting rod 35 …… Electric chain

Claims (1)

[Claims] 1. A binding arm is pivotally attached to a base through a support plate so as to be able to move up and down, and the tape pulled out from a rotatable tape reel is back tensioned by the tilting operation of the binding arm. In a manual binding device that is wound around a bound object, and that the wound end is pressure-bonded between the tip end of the binding arm and the tape holder, and a support is erected on the base,
The tape reel is located in the vicinity of the tip of the binding arm in a state where the binding arm is upright, and is rotatably supported by the support body independently of the binding arm, and the base end of the binding arm. And a guide plate for guiding the swing of the hook is provided on the support plate, and a rotating body that is rotated by the swing motion of the hook is provided on the support shaft of the binding arm. A rotary body is provided on the support shaft of the tape reel, and the rotary body provided on the support shaft of the tape reel is connected to the rotary body provided on the support shaft of the binding arm through a connecting means to form a binding arm. A binding device for transmitting the rotational force of a rotating body provided on a support shaft to a rotating body provided on a support shaft of a tape reel.