JPH0344692Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention mainly relates to a binding tool for a binding machine for binding filamentous objects such as a plurality of electric wires.

[Prior art]

As a binding tool to bundle multiple electric wires together,
A band made of synthetic resin such as nylon or polypropylene that is integrally molded with an engagement hole at one end and an engagement part such as an engagement head or protrusion that engages with the engagement hole at the other end. is possible. In this binding device, in order to improve the installation workability of engaging the engaging part with the engaging hole, it is necessary to have a structure that has little resistance when inserting the engaging head, the engaging protrusion, etc. into the engaging hole, and It is necessary to check the insertion direction in the mating hole and to align the engaging head etc. with the position of the mating hole by pinching with fingers. However, the fact that it can be inserted easily without resistance also means that the engaging part may easily separate from the engaging hole after engagement. There is a need for a binding tool that makes it possible.

On the other hand, in order to further improve the efficiency of the bundling work, the bundling work is performed using a bundling machine.

This binding device 12 has a substantially piston shape, and as shown in FIG.
4, one binding tool 10 is inserted into this guide groove 14 by operating a lever (not shown), and an object to be bound 1 such as an electric wire is placed on top of this binding tool 10.
3 is placed, bend the binding tool 10 at the thin part 1a and place the object 13 between the two thick parts A and B.
The system is designed to teach the following.

In the binding operation, the push lever 15 is advanced in the direction of arrow D by lever operation, as shown in FIG. 8, and the binding tool 10 is advanced to the tip of the guide groove 14.

A bending lever 16 is provided on the push-out lever 15 so as to swing around a pin 17. During the forward movement of the push-out lever 15, the tip of the push-out lever 15 touches the thick wall portion A of the binding tool 10. Press the end of the tie member 10 to lift the thick part B, and bend the tie member 10 into a V-shape as shown in FIG.

The end of the bending lever 16 is connected to the stop pin 1.
8 is stopped, and as a result, the bending lever 16 rotates in the direction of the arrow E to the state shown in FIG. 9, and the engagement protrusion is bundled into the engagement hole.

However, as shown in FIG. 10, in the conventional binding device, the thick portion B escapes in the direction of the arrow E and comes off the bending lever 16, causing a problem that binding becomes impossible.

[Purpose of invention]

The purpose of this invention is to solve the above-mentioned demands and shortcomings,
It is an object of the present invention to provide a tying tool that can be used to perform tying operations easily and randomly in manual tying operations, and in particular can be used for tying operations using a tying machine.

[Summary of the idea]

The binding tool for a binding machine of the present invention which achieves the above object has thick wall parts A and B extended on both sides of a thin wall part 1a, and an engaging protrusion 4 at the end of one thick wall part B. ,
An engagement hole 5 is provided at the end of the other thick part A, and when the thin part 1a is bent, the engagement teeth 3 of the engagement protrusion 4 are engaged with the protrusion 6 provided in the engagement hole. In the binding tool integrally formed of synthetic resin, a plurality of meshing teeth 3 are formed in succession,
When the thin wall portion 1a is bent, the back surface near the joint between the engaging protrusion 4 and the thick wall portion B is cut in the extending direction of the thick wall portion B to form a recess 7, or the recess 7 is formed near the joint portion. Protrusions 8 are provided on the back surface at intervals in the extending direction of the thick part B to form a guide part C that prevents the thick part B from coming off the pressing and bending lever of the binding machine. is provided on the outer end side of the engaging hole 5 so as to be swingable.

〔Example〕

The present invention will be explained below with reference to embodiments shown in the drawings.

Figures 1 to 3 show a binding tool according to the present invention integrally molded from synthetic resin, and 1 is the main band part, which has a thin wall part 1a across the band part 1 in the center thereof. , thick parts 1a, A, 1b on the left and right,
It has an integrated shape with B arranged. Since the thin wall portion 1a molded from synthetic resin has greater flexibility than the thick wall portion 1b, the band portion 1 can be bent into a bifold shape in the direction of the arrow X at the thin wall portion 1a provided at the center. It's getting old.

An engagement protrusion 4 protruding in the bending direction of the band section 1 is integrally formed on one end side of the band section 1, and an engagement hole 5 is formed on the other end side of the band section 1. There is.

Then, on the outside of the engagement protrusion 4, that is, on the outer side surface of the engagement protrusion 4 as seen from the band portion 1 side, engagement teeth 3 having a sawtooth shape when viewed in cross section in the height direction of the engagement protrusion 4 are provided with a predetermined length. It has been formed over the years. This meshing tooth 3
is inclined toward the base of the band portion 1 of the engagement protrusion 4.

Further, a projection piece 6 is swingably provided on the outer end side of the engagement hole 5 and protrudes toward the inside of the engagement hole 5 . This projecting piece 6 has a base 6a planted on one edge of the engagement hole 5,
In the engagement hole 5, in the direction of entry of the engagement protrusion 4,
Moreover, it is integrally molded with the thick portion 1b so as to protrude obliquely so as to contact and swing into engagement with the meshing teeth 3.

Since the protruding piece 6 is made of synthetic resin and has a cantilever shape, it is itself flexible. Further, on the side of the engagement hole 5 opposite to the protruding piece 6, a tapered surface 5a that slopes the engagement hole similarly to the inclined surface of the protruding piece 6 is provided.
is formed so that the engagement protrusion 4 can be easily inserted.

The thickness Tb of the engaging protrusion 4 in the above binding device is
The distance Ta between the tip of the tapered surface 5a and the tip of the protrusion 6 protruding into the engagement hole 5 is made larger than the interval Ta, and when the engagement protrusion 4 is inserted into the engagement hole 5, the protrusion 6
is pushed by the engaging portion 3 and bends to receive the engaging protrusion 4 into the engaging hole 5.

Furthermore, the width Td of the engagement protrusion 4 is the width Tc of the engagement hole 5.
is set slightly smaller than .

The binding device according to the present invention is, for example,
The binding is performed using the binding machine disclosed in Publication No. 187511, and the binding operation by this binding machine is as described above with respect to Figures 7 to 9, and as described with respect to Figure 10. When the bending lever 16 presses the back surface of the thick part B,
may come off. This separation from the lever naturally results in poor binding, and consideration must be taken to avoid this. In the present invention, a structure is adopted to prevent the bending lever 16 from coming off, and a guide portion C for guiding the lever is provided near the joint between the engagement protrusion 4 and the thick wall portion B. There is.

5 and 6 show the cross-sectional shape of the end of the band portion 1 on the side from which the engaging protrusion 4 protrudes.

FIG. 5 shows an embodiment of the guide part C, and the band part 1
A recess 7 is formed by cutting the back surface near the joint between the engagement protrusion 4 and the thick part B in the direction of extension of the thick part B,
This recess 7 contacts the bending lever of the binding machine and prevents the band portion 1 from coming off the bending lever.

In the embodiment shown in FIG. 6, protrusions 8 are formed on the back surface of the band part 1 at intervals H that allow the lever to be accommodated, and the band part 1 is pressed and bent for bundling as in the embodiment shown in FIG. The band portion 1 is guided so as not to come off from the push/bend lever during the bending process.

Using such a tying machine, the tying tool is folded on the side from which the engaging protrusion 4 protrudes, and the plurality of electric wires W are sandwiched between the flat surfaces of the bent band portion 1, and in this state, one end of the tying tool is engaged. Connect the protrusion 4 to the engagement hole 5 on the other end.
Just plug it in.

Then, the engagement protrusion 4 enters the engagement hole 5 while bending the protrusion piece 6, and the engagement teeth 3 provided on the outside of the engagement protrusion 4 and inclined toward the base 4a move into the engagement protrusion 4.
The engagement protrusions 4 engage into the engagement holes 5 while engaging with the protrusions 6 one by one from the distal end side. And the electric wire W
When the band portion 1 is completely wrapped around the bundle and the engagement protrusion 4 no longer enters the engagement hole 5, the engagement protrusion 4 is automatically locked by the projection piece 6.

The engagement position between the engaging protrusion 4 and the protruding piece 6 differs depending on the amount of electric wire W to be sandwiched. If the amount of electric wire W is large, the protruding piece 6 engages with the meshing tooth 3 on the tip side of the engaging protrusion 4. ,
If the amount of electric wire W is small, the protruding piece 6 engages with the meshing tooth 3 on the base side of the engaging protrusion 4.

In this way, when inserting the engagement protrusion 4 into the engagement hole 5, the elastic protrusion 6 is pushed by the slope of the meshing teeth 3 of the engagement protrusion 4 and is bent, so that the engagement protrusion 4 can be inserted easily. It can be inserted into the engagement hole 5 at any time. However, once the engagement protrusion 4 is inserted into the engagement hole 5, the protrusion 6 attempts to return to its original state due to elastic force, and its tip ends mesh with the meshing teeth 3 of the engagement protrusion 4 one after another. Therefore, the engaging protrusion 4 and the protruding piece 6 are always locked in an engaged state at any position, and cannot be disengaged.

In addition, in the binding device of the present invention, a guide portion C for guiding the pressing and bending lever of the binding machine is provided on the thick wall portion B of the engagement protrusion 4 and the back surface near this joint portion.
The binding device is prevented from coming off from the push/bend lever of the binding machine.

The binding device of the present invention is not limited to binding multiple electric wires W as in the embodiment, but can also be applied to other binding methods such as tightening and sealing the opening of a synthetic resin film bag. be.

[Effect of idea]

As described above, according to the binding tool for a binding machine of the present invention, on the back surface near the joint between the engaging protrusion and the thick part,
A guide part C is provided to guide the push/bend lever of the binding machine to prevent the binding tool from coming off the push/bend lever of the binding machine.

According to the present invention, the guide portion C is formed by cutting the vicinity of the back surface of the joint between the engagement protrusion 4 and the thick wall portion B to form a concave portion, or by forming a concave portion by forming a concave portion on the back surface of the joint portion. It is formed by providing .

For example, when bundling objects such as electric wires into a continuous object, the use of a bundling machine not only significantly improves work efficiency compared to manual bundling, but also As shown in the figure, there is no change in binding strength due to individual differences or fatigue levels, and objects to be bound can always be bound with a constant and maximum possible strength.

Therefore, the bundling work can be performed reliably and work efficiency can be improved.

Further, in the present invention, the protruding piece 6 is provided in the engagement hole 5 on the outer end side so as to be swingable.

Therefore, as the volume of the object to be bound increases,
When the engagement protrusion 4 is locked in the engagement hole 5 shown in FIG. 4, a strong force acts on the thick wall portion B on the side where the engagement protrusion 4 is provided, and this As a result, the engaging protrusion 4 is more strongly engaged with the protruding piece 6.

When the volume of the objects to be bound increases, it is of course possible to perform the binding manually. Continuous and regular operation is only possible through the use of a tying machine.

Furthermore, in the present invention, the engaging protrusion 4 has meshing teeth 3.
are formed in succession.

Therefore, the degree of insertion of the engagement protrusion 4 into the engagement hole 5 can be adjusted depending on the size of the object to be bound, and the engagement with the protrusion 6 provided in the engagement hole 5 can be made. Regardless of the size of the object, it is possible to always tighten the objects with a constant binding strength.

[Brief explanation of the drawing]

Fig. 1 is a plan view of the binding device according to the present invention, Fig. 2 is a sectional view taken from the side shown in Fig. 1, Fig. 3 is a back view of the binding device, and Fig. 4 is a plan view of the binding device according to the present invention. FIG. 5 is a sectional view of one embodiment of the - part of FIG. 3, FIG. 6 is a sectional view of another embodiment of the - part of FIG. 3, and FIG. 8
9 and 10 are explanatory diagrams showing the state of binding of conventional binding devices by a binding machine. 1... Band part, 1a... Thin wall part, A, B...
Thick wall portion, 3...meshing tooth, 4...meshing protrusion, 5...
Engagement hole, 6... protrusion, 7... recess, 8... protrusion,
C...Information department.

Claims (1)

[Scope of utility model registration request] Thick wall portions A and B are extended and formed on both sides of the thin wall portion 1a, and an engagement protrusion 4 is formed at the end of one thick wall portion B, and an engagement hole 5 is formed at the end of the other thick wall portion A. In the binding tool integrally formed of synthetic resin, the engaging tooth 3 of the engaging protrusion 4 engages with the protruding piece 6 provided in the engaging hole when bent at the thin wall portion 1a. , the engagement protrusion 4 when a plurality of the engagement teeth 3 are continuously formed and bent at the thin wall portion 1a;
The recess 7 is formed by cutting the back surface near the joint between the thick wall portion B and the thick wall portion B in the extending direction of the thick wall portion B, or the recess 7 is formed by cutting the back surface near the joint between the thick wall portion B and the thick wall portion B at intervals in the extending direction of the thick wall portion B. A protrusion 8 is provided to form a guide portion C that prevents the thick portion B from coming off the bending lever of the binding machine, and the protrusion 6 is swung toward the outer end within the engagement hole 5. A binding device for a binding machine characterized by being provided in a movable manner.