JPS6335486B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a binding device for binding objects to be bound by winding a tape around them.

(Prior art) There is a binding device as shown in Japanese Utility Model Application Publication No. 49-7030, for example, and this will be explained with reference to FIGS. 4 and 5. 1' is a receiver having a groove 2'. With ingredients,
A holder 3' is disposed on one inner side of the holder 1', and the holder 3' holds the holder 1' by a spring 4'.
is biased toward the other inner surface. One end of an operating rod 5' is swingably supported on the other inner surface of the receiver 1', and the other end of the operating rod 5' is biased in the direction of contacting the holder 3'. ing. A tape supply body 6' can enter the groove 2' by swinging an operating rod 5' between the other inner surface and the holder 3', and the tip thereof is bifurcated. I know. A cutting blade 7' is erected on the bottom surface of the groove 2' in the direction in which the tape supply body 6' enters, with the cutting edge facing upward. When you reach this point, you will be faced with a forked area at the tip.

In such a binding device, the tape 8' is guided from the tape supply body 6' toward the receiver 1', and the leading end of the tape 8' is connected to the other end of the operating rod 5' and the holder 3'. ’ is held between the two. Below this,
The object to be bound is wound around the tape 8' stretched between the tape supply body 6' and the receiver 1', and the tape supply body 6' presses the tape 8' with its tip and fills the groove 2. ' (see Figure 4).

When the tape supply body 6' enters the groove 2', the tape supply body 6' descends while being guided by the operating rod 5' and the holder 3', and the two-pronged portion of the tape supply body 6' The tape 8' suspended over the tape 8' is pressed against the cutting blade 7' and cut (see FIG. 5).

(Problems to be Solved by the Invention) However, in the above bundling device, the tape supply body 6' resists the urging force of the operating rod 5' and the holding body 3', ′, it is impossible to increase the biasing force of the operating rod 5′ and the holding body 3′ to the extent that the tape supply body 6′ cannot descend, and an external force is applied to the tape 8′. When the tape 8' acts, the tape 8' can be pulled into the groove 2' even if the tape supply body 6' is in the groove 2'. Therefore, when the cutting blade 7' is pressed against the tape 8' suspended between the two forked parts of the tape supply body 6', the acting force causes the tape supply body 6' and the holder 3' to be cut off. The tape 8' is pulled into the groove 2' to some extent from the inside of the tape 8', and the amount of pulling varies irregularly depending on the descending speed of the tape supply body 6', the cutting condition of the cutting blade 7', etc. I will do it. Therefore, the cutting position of the tape 8' becomes irregular, and the cut portion of the tape 8' may be in a torn state in some cases, and the tape 8' may not be cut properly. Ta.

The present invention has been made in view of the above circumstances, and its purpose is to prevent the tape from being pulled by the action of the cutting blade when the cutting blade is pressed against the tape.

(Means for solving the problem) On one side of the tape crimping table on the base,
A pair of tape clamping means are provided for clamping the end of the tape that is fed out from the tip of the binding arm which is pivotably attached to the binding arm. In the binding device, the tape clamping means includes an outer pressure-receiving member provided on the base, and a tape clamping member that is pivotally supported on the base and that presses the tape wound around the object to be bound between them. a clamping member elastically biased so as to come into contact with the outer pressure receiving member, and an end of a tape attached to the tip of the binding arm and wound around the object to be bound when the binding arm is collapsed. a tape pushing rod that presses a part of the binding arm against the outer pressure-receiving member; and an operating part that comes into contact with the clamping member and separates the clamping member from the outer pressure-receiving member at the tip of the bundle when the binding arm is tilted. a cutting blade that cuts the tape between the pair of tape clamping means as the binding arm tilts; and a cutting blade that cuts the tape between the pair of tape clamping means after the outer pressure receiving member and the clamping member are separated and before the tape is cut by the cutting blade; As the outer tape pressing member presses against the outer pressure receiving member and the binding arm is tilted, the tape is pushed down between the pair of tape clamping means and the tape crimping table, and the end of the tape on the crimped side is pressed down. A tape relief rod is provided, which is pulled out from between the pair of tape holding means.

(Function) When the binding arm falls down, the tape pushing rod presses the winding end of the tape wound around the object to be bound against the outer pressure-receiving member, and when the binding arm further tilts from there, the operating part presses the end of the tape wound around the object to be bound against the clamping member. The outer pressure-receiving member and the clamping member are separated by contact with the outer pressure-receiving member, and after the outer tape-pressing member presses the tape against the outer pressure-receiving member, a cutting blade enters between the two members to cut the tape. After cutting, when the binding arm starts to stand up, the clamping member presses the end of the tape pressed by the tape pushing rod against the outer pressure receiving member, after which the tape pushing rod separates from the outer pressure receiving member. Become.

(Example) Examples of the present invention will be described below based on the drawings.
In FIGS. 1 and 2, reference numeral 1 denotes a base, and approximately in the center of the base 1 is provided a mounting table 2 for objects to be bound, the height of which is adjustable. The base of a binding arm 3 is pivotally attached to one end of the base 1 so as to be able to move up and down about a shaft 4, that is, to raise and fall. Rollers 7, 7, . . . which guide the unwound tape 6 to the tip 3A with its adhesive surface facing outward are provided.

An automatic rewinding mechanism 8 is provided between the binding arm 3 and the tape feeding device 5. When the binding arm 3 is lowered, the tape feeding device 5 is reversed by the mechanism 8, and the binding arm 3 The excess tape 6 that has become slack due to the lowering of the tape is rewound to the tape feeding device 5. Therefore, with this device, objects to be bound can be bound in a moderately tensioned state at all times.

Opposed to the other end of the base 1, an inner tape pressing member 9 as a tape pressing member and an outer tape pressing member 10 having a pushing rod 22 are provided on the tip 3A of the binding arm 3 so as to be retractable and have springs. 11,1
2 and is biased toward the protruding side. on the other hand,
At the other end of the base 1, an inner pressure receiving member 13 serving as a tape crimping base that abuts against the tape pressing member 9 and an outer pressure receiving member 14 that abuts against the outer tape pressing member 10 are provided with an interval. . Between the inner and outer pressure receiving members 13 and 14 is a clamping punch 15 that cooperates with the outer pressure receiving member 14 to clamp the end portion 6A of the tape 6.
is provided. That is, the tape clamping means 16 is constituted by the outer pressure receiving member 14 and the clamping punch 15. Here, the clamping punch 15 is integrally formed between the distal ends of the arms 17, 17 which are pivotally connected to the base 1, and is pressed toward the outer pressure receiving member 14 by the spring 18, but the clamping punch 15 has two parts inside and outside. The outer pressure receiving member 1 is provided between the two pressure receiving members 13 and 14.
Any other structure may be used as long as it cooperates with the tape 4 to clamp the end 6A of the tape 6. Of course, even if the structure is such that the clamping punch 15 is fixed to the base 1 and the outer pressure receiving member 14 moves toward and away from the clamping punch 15, it still functions as a clamping means.

The distal end portion 3A of the binding arm 3 is provided with an operating portion 19 for separating the pair of clamping means, that is, the outer pressure receiving member 14 and the clamping punch 15, from each other as the binding arm 3 is tilted. Here, the operation section 19
includes an inclined cam surface 19A for displacing the clamping punch 15 away from the outer pressure-receiving member 14 to a fixed position, and a vertical cam surface 19B for maintaining the clamping punch 15 at the fixed position. In addition, the operation part member 1
It is obvious that the structure 9 is not limited to that described above, as long as it can substantially release the clamping of the tape end between the outer pressure receiving member 14 and the clamping punch 15.

A cutting blade 20 that cuts the tape 6 between the pair of tape clamping means 14 and 15 as the binding arm 3 tilts, and a cutting blade 20 that cuts the tape 6 between the pair of tape clamping means 14 and 15 as the binding arm 3 tilts.
With the tilting movement of the pair of tape holding means 1
4, 15 and an inner pressure receiving member (tape crimping table) 13, a tape release punch 21 pushes down the tape 6 and pulls out the crimped end of the tape 6 from between the pair of tape clamping means 14, 15. Each is fixed.

Here, the outer tape pressing member 10 has a tape pressing punch 22. The tape pushing rod 22 consists of arms 22A, 22A, and a shaft portion 22B that is integrally provided between the tips of the arms 22A, 22A, and the bases of the arms 22A, 22A are connected to the outer tape pressing member via the shaft 23. 10, and is urged clockwise by a spring 24 in FIG.

Reference numeral 25 in the drawing denotes an object presser, which rotates clockwise in FIG.
6 into the object mounting table 2 side.

In the above configuration device, as shown in FIG.
The end portion 6A of the tape 6 fed out from the tape feeding device 5 is held between the outer pressure receiving member 14 and the clamping punch 16, and the object to be tied is removed from between the tip portion 3A of the binding arm 3 and the outer pressure receiving member 14. 26 is pushed downward to place it on the object mounting table 2 (state A in FIG. 1).

Next, the binding arm 3 is lowered (tilted) and the tape 6 is
is wound around the object to be bound 26. At this time,
The excess tape that has become slack due to the lowering of the binding arm 3 is rewound to the tape feeding device 5.

When the binding arm 3 is lowered to the position shown in FIG. 3A, the inner tape pressing member 9 abuts against the inner pressure receiving member 13, and the wound ends of the tape 6 are bonded together between them 9 and 13. At this time or after that, the operating portion 19 comes into contact with the clamping punch 15 and separates the clamping punch 15 from the outer pressure receiving member 14 as the binding arm 3 descends.

When the outer pressure receiving member 14 and the clamping punch 15 are separated from each other, the tape 6 is held elastically between the outer tape pressing member 10 and its tape pushing punch 22, and the outer pressure receiving member 14, and thus, The tape 6 is held under pressure at two locations.

When the binding arm 3 further descends (tilting movement), the spring 1
As shown in FIG. Then, the tape 6 is cut. In this case, the end 6A of the tape 6 that was being held is in a free state and will not be cut.

On the other hand, as the binding arm 3 descends, the tape release punch 2
1 enters between the clamping punch 15 and the inner pressure-receiving member 13, pushes down the tape 6, and transfers the crimped end of the tape 6 (the original end 6A and the cut end) to the outer pressure-receiving member 14 and the clamping punch 15. Pull it out from between.

After that, when the binding arm 3 is raised, the cutting blade 20
The tape release punch 21 returns upward, and the outer pressure receiving member 14 and the clamping punch 15 collide to clamp the new end of the tape 6 on the feeding device 5 side. In this case, since the tape 6 is cut between the outer pressure receiving member 14 and the clamping punch 15, the new end of the tape 6 can be clamped smoothly. Further, the end of the tape 6 on the crimping part side is connected to the tape relief punch 21 before the outer pressure receiving member 14 and the clamping punch 15 start the clamping operation.
Since the tape is pulled out from between both 14 and 15 by the tape, the end of the tape will not be pinched incorrectly.

By repeating the above operations, the object to be bound 2
The bundling work in Step 6 can be repeated and performed smoothly.

Although one embodiment has been described above, the present invention is not limited to the above embodiment, and the present invention may cut the tape with a cutting blade between two tape elastic support parts as the binding arm tilts. You are free to make changes to the structure within the scope of the gist.

(Effects of the Invention) As described above, the present invention provides that as the tape guide means approaches the tape crimping table, the pair of tape pressing members and the tape crimping table gradually increase the biasing force against the tape. The tape is held in two places, and when the elastic holding force becomes a sufficient urging force, the tape is cut by the cutting blade. Even if the cutting blade is pressed against the tape during cutting, the tape is prevented from being pulled due to its acting force. Therefore, the tape is cut regulatedly at a predetermined cutting position, and the cut portion of the tape is cut cleanly.
The tape is cut accurately.

Further, in the present invention, even after the tape is cut, the winding end of the tape is pressed against the outer pressure receiving member by the tape pushing rod, and the pressing of the tape by this member causes the clamping member to return to the outer pressure receiving member. This continues until the tape is held by the holding means, so that the tape is reliably held by the holding means even though tension in the unwinding direction is acting on the tape. Furthermore, in the present invention, the tape is cut between a pair of clamping means, and while one of the winding ends of the tape is stretched between them, the other end hangs down as a free end. In this case, only one end of the winding is cut, so no cutting waste of the tape is generated.

Further, when cutting the tape, the tape is pressed against the outer pressure receiving member by the outer tape pressing member and the clamping member, and therefore sufficient tension is applied to the tape, so that the tape can be cut reliably.

Furthermore, since the separation between the outer pressure-receiving member and the clamping member is achieved only by the operating section, the number of parts is small and the configuration can be simplified.

[Brief explanation of the drawing]

FIG. 1 is a front view of a binding device showing an embodiment of the present invention. FIG. 2 is a left side view of the binding device shown in FIG. 1. 3A to 3C are enlarged front sectional views of main parts showing the operation of the apparatus shown in FIG. 1, respectively. FIG. 4 is an explanatory diagram showing a bundling device according to the prior art. FIG. 5 is an operating state diagram of FIG. 4. 1... Base, 3... Binding arm (tape guide means), 9
...Inner tape pressing member (tape pressing member), 10
...Outer tape pressing member (tape pressing member), 13
... Inner pressure receiving member (tape crimping table), 14... Outer pressure receiving member (tape crimping table), 20... Cutting blade.

Claims (1)

[Scope of Claims] 1. A pair of tapes that are mounted on one side of a tape crimping table on a base and hold the end of the tape that is fed out from the tip of a binding arm that is pivotally attached to the base so that it can be raised and folded. A binding device comprising a clamping means and a tape crimping body at the tip of the binding arm that crimps the tape wound around the object to be bound between the binding arm and the tape crimping table as the binding arm tilts. The tape clamping means includes an outer pressure-receiving member provided on the base, and a clamping member pivotally supported by the base and elastically biased to freely abut against the outer pressure-receiving member. a tape pushing rod that is attached to the tip of the binding arm and presses the end of the tape wound around the object to be bound against the outer pressure-receiving member when the binding arm is laid down; an operating section that comes into contact with the clamping member and separates the clamping member from the outer pressure receiving member during the tilting operation; and a cutting blade that cuts the tape between the pair of tape clamping means as the binding arm tilts. an outer tape pressing member that presses the tape against the outer pressure receiving member after the outer pressure receiving member and the clamping member are separated and before the tape is cut by the cutting blade; A binding device characterized in that a tape release rod is provided for pushing down the tape between the tape clamping means and the tape crimping table and pulling out the crimped end of the tape from between the pair of tape clamping means.