JPH0223411B2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention involves winding a binding tape around objects to be bound,
The present invention relates to a binding device for binding objects to be bound, and more particularly to a tape holding device for holding cut ends of binding tape.

(Prior Art) Conventionally, a tape holding device is provided to hold the cut end of a binding tape guided through a binding arm, and the binding arm provided with a crimping and cutting mechanism is moved away from and approached the tape holding device. BACKGROUND ART There is known a binding device that binds objects by winding a binding tape around objects to be bound, crimping and cutting the wound ends.

As shown in Japanese Patent Publication No. 63-35485, for example, the tape holding device of this conventional binding device has a rotary body around which grooves are formed at equal intervals, and a rotating body that engages with the grooves to hold the binding tape. It is roughly composed of a clamping arm that clamps the cut end, and while the binding tape is being wound around the object to be bound and the wound end of the binding tape is being crimped and cut, the binding arm approaches the object. The rotating body is rotated toward the side where the clamping arm is present to feed out the binding tape, and the clamping arm that is fitted into the concave groove of the rotating body The cut end of the tape fed out between the groove and the groove was held in place.

(Problem to be Solved by the Invention) When the above-mentioned conventional binding machine clamps the cut end of the tape, when the binding arm separates, the gripping margin of the fed-out tape is dragged, and before it is clamped by the clamping arm. However, there is a risk that the gripping margin of the tape may separate from the concave groove of the rotating body, and it is difficult to securely grip the cut end of the binding tape.

The present invention has been made in view of the problems of the prior art described above, and an object of the present invention is to attach the cut end of the binding tape to the binding arm except when the cut end of the binding tape is held between the rotating body and the holding member. It is an object of the present invention to provide a binding device which can securely clamp objects by clamping them between a roller and a rotating body.

(Means for Solving the Problem) Means according to the present invention for solving the above problems includes a tape holding device that holds the cut end of the binding tape guided through the binding arm, and a crimping and cutting mechanism. By moving the binding arm provided with the binding tape away from and approaching the tape holding device, the binding tape is wound around the object to be bound, and the wound ends are crimped and cut to bind the object to be bound. In this binding device, a rocking plate is pivotally supported on an upright plate provided on a base, a rotating body having an engagement groove is pivotally supported on the rocking plate, and a shaft supporting the rocking plate is pivotally supported on the rocking plate. A clamping member is fixed to the upright plate, and has a curved portion that is biased by a spring so as to rotate upward in the center and that holds the cut end of the tape by coming into contact with the outer periphery of the rotating body that rises due to the biasing of the spring. , a rotary drive member is provided that engages with the engagement groove when the rotating body moves upward together with the rocking plate, and a roller that comes into contact with the rotating body is provided on the binding arm, and the clamping member and The tape is characterized in that the tape is held between the roller and the rotating body except for the cut end of the tape being held between the rotating body.

(Function) With this configuration, the rotating body pivotally supported by the rocking plate is pushed down by the roller provided on the binding arm by the lowering movement of the binding arm against the biasing force of the spring. .

As a result, the rotating body and the roller are maintained in a pressed state by the biasing force of the spring within the range in which the binding arm is pushed down, and the two move following the vertical movement of the binding arm without being separated.

Therefore, the cut end of the tape held between the rotary body and the roller is not dragged by the separating action of the binding arm.

In addition, the rotating member is pushed down against the elastic force of the spring along with the rotating body which is pressed down while keeping the roller and the rotating body in a crimped state.Then, by raising the binding arm, the roller and the rotating body are pressed down. In the process of rising, the rotational drive member engages with the engagement groove of the rotating body and rotates the rotating body.

Due to the rotation of the rotary body, the cut end of the tape is fed out while being clamped between the roller and the rotary body.

Then, the cut end of the tape that has been fed out rises while being crimped and clamped between the roller and the rotating body, and in the process of rising, the outer periphery of the rotating body comes into contact with the curved part of the clamping member, and rotates with the curved part. The cut end of the tape is held between the body and the outer peripheral surface of the body.

Even if the binding arm is further raised and erected, the rotating body is held down by the curved portion and stops with the cut end of the tape being clamped, and the tape is pulled out from the tape reel by the erecting of the binding arm.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

1 to 6 show a first embodiment of the binding device according to the present invention, in which 1
2 is a base, 2 is a binding arm, and 3 is a tape holding device. The binding arm 2 is provided on the base 1 so as to be movable up and down, and is biased by a spring in the upright direction. The binding arm 2 approaches the tape holding device 3 by its tilting motion, and moves away from the tape holding device 3 by its rising motion. This binding arm 2 has
A guide roller 4 is provided, and a binding tape 5 attached to a tape reel (not shown) is attached to a binding arm 2.
It extends toward the tape holding device 3 through the tape holding device 3.
A tape crimping and cutting mechanism 7 is provided at the free end 6 of the binding arm 2. This tape crimping/cutting mechanism 7 is roughly composed of a cutting blade 8, a tape release plate 9, and a tape crimping plate 10. A guide plate 11 is provided at the free end 6 of the binding arm 2, and guide holes 11a and 11b are formed in the guide plate 11, respectively, and the guide holes 11a and 11b extend in the direction in which the guide plate 11 extends. The tape release plate 9 is provided with protrusions 9a on both sides in the width direction that engage with the guide holes 11b, and the tape pressure bonding plate 10 is provided with protrusions 10a on both sides in the width direction that engage with the guide holes 11a. It is provided. The tape release plate 9 and the tape pressure bonding plate 10 are suspended from springs 12 and 13, respectively, and are suspended from springs 12 and 13, respectively.
The tape pressure bonding plate 10 is elastically biased by
and the tape release plate 9 are each guide hole 11a, 11
It reciprocates along the direction b.

The tape holding device 3 has a pair of upright plates 14. 1 to 6 show a state in which only one of the pair of upright plates 14 has been removed, and this pair of upright plates 14 has one shaft 15.
is fixed. 16 is a swing plate. The swing plate 16 is disposed in a space facing the pair of upright plates 14, and is swingable about the shaft 15 as a fulcrum. The swing plate 16 has a pair of bent portions 17 on both sides in the direction opposite to the upright plate 14 . Rocking plate 1
6 has a sprig 1 between its tail portion 18 and the base 1.
9' is spanned, and the first
In the figure, it is urged to rotate in the direction of arrow A. A shaft 19 is fixed across the tip portions of the pair of bent portions 17, and a cylindrical rotating body 20 is rotatably mounted on this shaft 19. This rotating body 2
0, a plurality of engagement grooves 21 are formed at equal intervals around the rotating body 20, and at the center of the rotating body 20 in the axial direction, a plurality of engagement grooves 21 are formed at equal intervals around the rotating body 20. A circular groove is formed in the direction, and an elastic ring (not shown) such as a rubber ring is attached to this circular groove.

A claw member 22 is rotatably provided on the shaft 15. This claw member 22 is generally composed of an engaging claw 23 and a bracket 24. As shown in FIG. Bent part 17
is provided with a pin 25, and a spring 26 is stretched between the pin 25 and the bracket 24, so that the claw member 22 is urged to rotate in the direction opposite to the direction of arrow A in FIG. , the engaging claw 23 is the rotating body 20
When the engaging groove 21 of the rotating body 20 faces the position facing the engaging claw 23, the tip of the engaging claw 23 contacts the engaging groove 21. It is meant to be entered. This engaging pawl 21 functions to prevent the rotating body 20 from reversing.

The upright plate 14 is provided with a clamping member 27 that cooperates with the rotating body 20 to clamp the cut end 5a of the binding tape. This clamping member 27 has a flat plate shape extending from the bottom to the top, and its upper part is
A curved portion 27a is curved toward the tape holder 20 side.
The surface of this curved portion 27a facing the tape holder 20 serves as a clamping surface for clamping the cut end 5a. This clamping member 27 is preferably made of a material that does not damage the binding tape as much as possible, such as plastic.
A pressure receiving plate 28 is provided on the upright plate 14 at a position opposite to the rotary body 20 with the clamping member 27 as the boundary, for crimping both winding ends 5b of the binding tape wound around the object B. It is provided. This pressure receiving plate 28 has
Here, a rubber member is used, and it cooperates with the tape pressure bonding plate 10 to reliably pressure bond both winding ends 5b.

A shaft 29 is fixed to the binding arm 2, and a swing plate 30 is swingably attached to this shaft 29.
This rocking plate 30 is biased in the direction of arrow C in FIG. 1 by a spring (not shown), and the rocking plate 30
At position 0, the side surface contacts the pin 31 and stops swinging. A rod pin 32 is fixed to the free end of the swing plate 30, and a roller 33 as a feeding member is loosely fitted onto the rod pin 32.

FIG. 1 shows the state immediately after the roller 33 comes into contact with the rotating body 20 while pressing the binding tape 5, and also shows the state in which both winding ends 5b of the binding tape have started to be crimped. A cut groove 34 is formed in the plate 14 to serve as a guide space for the shaft 19, and the cut groove peripheral wall 14a of the upright plate 14 serves as a regulating member that comes into contact with the shaft 19 to regulate the swinging displacement of the swing plate 16. functions as A guide hole 35 is formed in the upright plate 14 and extends long in the vertical direction. 36 is a rotational drive member for rotating the rotating body 20. This rotational drive member 36 has engagement protrusions 36a and 36b that engage with the guide hole 35. A spring 37 is provided between the base 1 and the rotational drive member 36, and the rotational drive member 36
7, and the engagement protrusion 36a abuts against the upper circumferential wall of the guide hole 35, thereby stopping the engagement projection 36a from rising. The upper end portion of the rotational drive member 36 is bent to form a bent portion 38 . This bent portion 38 is
It is configured to enter the engagement groove 21.

Next, the action will be explained.

In FIG. 1, when the binding arm 2 is lowered, the rotating body 20 is pressed by the pressing force of the roller 33, and the swinging plate 16 is rotated with the shaft 15 as a fulcrum, opposite to the direction of the arrow A in FIG. The rotating body 20
is separated from the curved portion 27a to open the cut end 5b of the binding tape, as shown in FIG. The rotating body 20 rotates in the direction of arrow D in FIG. 1 due to the pressing force of the roller 33, and as shown in FIG.
I'm going to meet you. Note that the rotational drive member 36 is connected to the rotating body 20
It descends along the guide hole 35 due to the pressing force of
The spring 37 stores upward biasing force.

When the binding arm 2 is further lowered, the binding tape 5 is cut by the cutting blade 8 as shown in FIG. As shown in FIG. 3, the cut end of the binding tape wound around the object B is bent by the curved portion 27a of the clamping member 27 by the action of the tape relief plate 9.
The tape release plate 9 hangs between the clamping member 27 and the pressure receiving plate 28.
Due to the action of
This prevents it from being pinched by 7 and 7.

In FIG. 3, the tip of the engagement claw 23 and the bent portion 38 of the rotational drive member 36 have entered the engagement groove 21 facing each other. tied arm 2
When erected, the swing plate 16 rotates in the direction of arrow A with the shaft 15 as a fulcrum due to the tensile force of the spring 26, as shown in FIG. Along with this, the rotating body 20 rises and approaches the curved portion 27a of the clamping member 27. At this time, the rotating body 20 is
rotates in the direction of arrow E in FIG. 3, but does not rotate in the direction of arrow E after the tip of the engagement claw 23 contacts the peripheral wall of the engagement groove.

When the rotating body 20 further rises after the bent portion 38 of the rotational drive member 36 comes into contact with the peripheral wall of the engagement groove 21, the rotational body 20 is moved by the rotational drive member 36, as shown in FIG. It will be rotated in the direction of arrow F using the shaft 19 as a fulcrum. By this rotation, the cut end 5a' on the tape reel side is fed out, and the clamping length of the cut end of the binding tape is ensured. Furthermore, the rotating body 20
5, the bent portion 38 of the rotary drive member 36 separates from the peripheral wall of the engagement groove 21, and the rotation of the rotating body 20 in the direction of arrow F is stopped. That is, during one reciprocating motion, the rotating body 20 moves by one engagement groove 21 in the direction indicated by the arrow F in FIG.
The length of the unwound binding tape is approximately equal to the circumferential distance between adjacent engagement grooves 21. When the binding arm 2 rises and the roller 33 separates from the rotating body 20, the rotating body 2
0 is the curved portion 2 of the clamping member 27 as shown in FIG.
7a, the cut end of the binding tape is held between the rotating body 20 and the curved portion 27a.

According to this embodiment, the curved portion 2 of the clamping member 27
Since 7a is shaped to follow the outer circumferential surface of the rotating body 20, the cut end of the binding tape can be held between the surfaces, and the cut end of the binding tape can be reliably held.

Pushing down the binding arm 2 in this way, the roller 33
From the time when the roller 33 and the rotating body 20 come into contact with the outer periphery of the rotating body 20, the roller 33 and the rotating body 20 are maintained in a pressed state by the elastic force of the spring 19' applied via the rocking plate 16, and the two do not separate. , lowering, cutting the tape, raising the tape, feeding out the cut end of the tape, and holding the cut end of the tape between the outer periphery of the rotating body 20 and the curved portion 27a.

Further, when the tape is fed out, the rotary body 20 and the roller 33 are rotated and fed out while being pressed together, so that the cut end of the tape is certainly fed out without slippage.

The cut end of the tape fed out in this way is
From the time when the roller 33 and the rotating body 20 first come into contact with each other without being pressed and separated,
Since the tape is held between the roller 33 and the rotating body 20 until the cut end of the tape is held,
The tape is not dragged by the raising and lowering of the binding arm 2. Subsequently, the cut end of the tape is held between the outer peripheral surface of the rotating body 20 and the curved portion 27a.

FIG. 7 shows a second embodiment of the tape holding device of the binding device according to the present invention. In this figure, 39 is an upright plate, 40 is a pressure receiving plate, and 41 is a clamping member. The upper part of the clamping member 41 is curved to form a curved part 41a, and the surface far from the pressure receiving plate 40 is a clamping surface that clamps the cut end of the binding tape, as in the first embodiment. Similar to the example. The upright plate 39 is provided with a cut-and-raised portion 39a, and a vertically movable plate 42 is provided so as to be movable up and down along this cut-and-raised portion 39a. Vertical moving plate 4
2 is upwardly biased by a spring 43, and a shaft 44 is fixed to the lower part of this vertically movable plate 42, and a shaft 45 is fixed to the upper part. This axis 4
A rotating body 46 is rotatably adhered to 5, and the cut end of the binding tape is held between this rotating body 46 and the curved portion 41a of the clamping member 41. A plurality of engagement grooves 47 are formed at equal intervals around one end of the rotor 46 in the axial direction. A claw member 48 is rotatably bonded to the shaft 44, and the claw member 48 is attached to the shaft 44.
A torsion coil spring 49 attached to the torsion coil spring 49 constantly urges the tip end 48a of the claw member 48 in the direction of engagement with the engagement groove 47. Standing board 39
A shaft 50 is fixed to the shaft 50, and a rotational drive member 51 is rotatably provided on the shaft 50. A cut-and-raised portion 51a is provided at the free end of this rotational drive member 51, and this cut-and-raised portion 5
1a is adapted to engage with the engagement groove 47.
A torsion coil spring 52 is attached to the shaft 50,
One end of the rotary drive member 51 is brought into contact with the clamping member 41 and the other end is brought into contact with the cut and raised portion 51b of the rotary drive member 51, so that the cut and raised portion 51a of the rotary drive member 51 enters the engagement groove 47. It is elastically biased in the direction of

Since the operation of this tape holding device is substantially the same as that of the previous embodiment, detailed explanation thereof will be omitted.

8 and 9 show a third embodiment of the binding device according to the present invention, in which 5
2 is a base, and 53 and 54 are frames. The frame 53 and the frame 54 are provided at a constant interval, and the frames 53 and 54 have a shaft 55.
is fixed. The binding arm 56 is rotatably provided on the shaft 55, and has a locking pin 57 protruding from its rotation base. A guide hole 58 is provided in the frame 54 and has a shape extending along the rotation locus of the locking pin 57. The frame 53 is provided with a guide groove 59,
A guide hole 60 is provided in the frame 54 at a position facing the guide groove 59. A rod pin 61 is stretched between the guide groove 59 and the guide hole 60. A spring 62 is stretched between the locking pin 57 and the rod pin 61, and the binding arm 56 is biased in the upright direction. The spring 62 is attached by attaching one end to the locking pin 57 and the other end to the bar pin 61 so that no tensile force is applied to the spring 62.
is inserted into the upper end of the guide hole 60, and then this guide hole 6
This is done by lowering the rod pin 61 along the line 0 and engaging it in the bent portion of the guide hole 60 and the guide groove 59.

63 is a tape reel. This tape reel 63 is configured to rotate around a shaft 64 as a fulcrum,
A binding tape 65 is attached to the tape reel 63. A rotation transmission mechanism 66 is provided between the shaft 55 and the shaft 64. This rotation transmission mechanism is
A sector gear 67, a small gear 68, a missing gear 69,
The tape reel 63 is rotated in the tape rewinding direction (in the direction of arrow H in FIG. 8) by the rotation of the binding arm 56 when it is tilted, thereby rewinding the binding tape. It is like that. A one-way clutch (not shown) is provided between the shaft 64 and the tape reel 63 so that the rotation of the rotation transmission mechanism 66 is not transmitted to the tape reel 63 when the binding arm 56 is raised. This one-way clutch has the function of preventing the binding tape from becoming loose when the tape reel 63 rotates in the direction in which the binding tape is pulled out.

The leading part of the binding tape 65 is connected to the guide roller 7
1 , 72 and the free end 73 of the binding arm 56
, and extends toward the tape holding device 74 . As shown in FIG. 8, the object to be bound B is
When the object B comes into contact with the binding tape extension part 75 stretched between the tape holding device 74 and the free end part 73, the binding tape 65 is inserted from the opposite direction. It's starting to get pulled out. The gear 70 faces the partially toothed gear 69a of the partially toothed gear 69 when the binding arm 56 is upright, and the tape reel 65 is freely moved in the direction in which the binding tape 65 is pulled out by the pulling force of the binding tape 65. It is designed to rotate. If the rotation transmission mechanism 66 has this configuration, the binding tape 65
While the tape reel 63 is being pulled out, the rotation of the tape reel 63 is
Since the configuration is such that the transmission is not transmitted to the partially toothed gear 69 and the sector gear 67, the binding tape can be easily pulled out.

The free end 73 of the binding arm 56 is crimped with tape.
A cutting mechanism 76 is provided. Here, the tape crimping/cutting mechanism 76 is roughly composed of a cutting blade 77, a tape relief plate 78, a tape crimping plate 79, and a gap closing plate 80. Cutting blade 77, tape relief plate 78, and tape pressure bonding plate 7
9 has the same functions as those of the first embodiment, so the description of the functions will be omitted. The gap-closing plate 80 is for closing the approximately triangular gap that occurs between the object to be bound B and both winding ends of the binding tape wound around the object to be bound. It has a function of pressing the excess of both winding ends that are not crimped onto the object B.

A shaft 81 is provided on the free end portion 73 of the binding arm 56, a swing plate 82 is provided on the shaft 81 so as to rotate about this shaft, and a shaft is provided on the free end portion of the swing plate 82. 83 is provided, and a roller 84 is loosely fitted onto this shaft 83. The swing plate 82 is resiliently biased in the direction of arrow I in FIG. 8 by a spring 85, and the spring locking pin 86 also functions as a stopper for the swing plate 82. If the rocking plate 82 is configured in this way, when replacing the cutting blade 77, the rocking plate 82 can be rotated in a direction in which its free end moves away from the cutting blade 77, and a tool such as pliers can be inserted. Because you can secure space,
The replacement work of the cutting blade 77 becomes easy.

The tape holding device 74 has a pair of upright plates 87. This pair of upright plates 87 includes a pressure receiving plate 8
8 and a clamping member 89 are provided. These configurations are substantially the same as those of the first and second embodiments, so detailed explanation thereof will be omitted. Standing board 87
A shaft 90 is stretched over and fixed to the shaft 90, and a swing plate 91 is rotatably provided on the shaft 90. This rocking plate 91 exists between a pair of upright plates 87 , and a torsion coil spring 92 is attached to a shaft 90 .
7a, and the other end abuts on a shaft 93 protruding from the swing plate 91, and the swing plate 91 is biased upward by the torsion coil spring 92. A shaft 94 is spanned over the swing plate 91, and a rotating body 95 is rotatably provided on the shaft 94. 9
Reference numeral 6 denotes a locking groove formed at one end in the axial direction of the rotating body 95 at equal intervals around the circumferential direction, 97 a rotational drive member, 98 a shaft serving as a swinging fulcrum of the rotational drive member, and 99 a rotational drive member. The rotary drive member 97 is rotated so that the free end of the rotary drive member comes into contact with the rotating body 95.
100 is the rotating body 9
The claw member 101' for preventing reverse rotation 5 is a torsion coil spring that urges the claw member 100 so that the tip of the claw member 100 comes into contact with the rotating body 95. 101 is a leaf shielding board, and here, the ninth
As shown in the figure, it is composed of a pair of flat plates 101a and 101b. The flat plates 101a and 101b are each fixed to a base 52, and can be stretched in the width direction of the base 1 in FIG. 9, so that the facing width l can be changed. By changing this facing width l, it is possible to match the standard width of the binding tape.

Although the embodiments have been described above, the present invention is not limited thereto and includes the following.

(1) In the embodiment, a configuration in which the binding arms are moved up and down has been described, but it is also possible to have a configuration in which the binding arms are moved up and down.

(2) In the embodiment, the rotating body is moved vertically to clamp and release the cut end of the binding tape, but the rotating body may be moved horizontally.

(Effects of the Invention) As described in detail above, according to the present invention, the roller provided on the binding arm and the rotating body are held under pressure through the swing plate, and the tape is cut, the cut end of the tape is fed out, and the cut end is removed. Since the tape can be held between the roller and the rotating body until the tape is held, the tape will not be dragged by the movement of the binding arm.

Therefore, a sufficient margin for gripping the cut end of the tape is ensured, and the cut end of the tape is reliably held between the outer peripheral surface of the rotating body and the curved portion.

[Brief explanation of drawings]

1 to 6 are main part configuration diagrams showing a first embodiment of a binding device according to the present invention. FIG. 7 shows a second embodiment of the binding device according to the present invention.
The side view which shows the example of a change of a tape holding device. 8 and 9 show a third embodiment of the binding device according to the present invention, FIG. 8 is a schematic side view showing the overall configuration, and FIG. 9 is a direction in the direction of the arrow X in FIG. 8. Front view. 2... Binding arm, 3... Tape holding device, 5...
Binding tape, 5a... cut end of binding tape, 5
b... Winding end, 20... Rotating body, 27... Clamping member, 33... Roller.

Claims (1)

[Claims] 1. A tape holding device that holds the cut end of the binding tape guided through the binding arm, and the binding arm provided with a crimping and cutting mechanism is moved away from and approached the tape holding device. Accordingly, in a binding device that wraps a binding tape around objects to be bound, crimps and cuts the ends of the wound tape, and binds objects to be bound, a swing plate is attached to an upright plate provided on a base. A rotating body is pivotally supported, and the rocking plate is provided with an engagement groove. A clamping member having a curved portion that comes into contact with the outer periphery of the rising rotating body and holding the cut end of the tape is fixed to the upright plate, and when the rotating body moves upward together with the swinging plate, the clamping member is fixed to the upright plate. A rotary drive member that engages with the engagement groove is provided, and a roller that contacts the rotating body is provided on the binding arm, and the cut end of the tape is held between the clamping member and the rotating body. A binding device characterized in that it is provided so as to be held between the rotating body.