JPH0353780Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial field of application> Normally, when electronic equipment receives disturbance noise, it often occurs at the interface between systems or between devices; , electrostatic induction, electromagnetic coupling,
It is recognized that noise transmission paths exist due to parasitic constants not shown in the wiring diagram, such as common impedance coupling.

As a measure against this noise, it is said that it is better to use twisted wires than to use them in parallel, and that it is more effective to use twisted wires with a large number of twists.

The present invention relates to a wire holder used in a wire twisting machine that twists a plurality of wires together to prevent noise.

<Prior Art> Conventionally, as described above, devices for twisting electric wires together to prevent noise have been manufactured, sold, and used by general electrical equipment manufacturers.

However, most conventional electric wire twisting machines of this type were large machines that twisted together hundreds of meters of long electric wire wound on a drum.

<Problem that the invention seeks to solve> However, electronic devices use a large number of electric wires, and each wire is coded in various colors to avoid mixing and erroneous connections, and to make connections easier and faster. It is customary to use

Conventional large electric wire twisting machines twist long electric wires together, so in order to use twisted electric wires with various color codes and color combinations for the above-mentioned electronic devices, it is necessary to twist electric wires with different numbers of twists and wires. In order to freely use wires of different diameters and large and small wire diameters, a huge amount of twisted wires had to be kept on hand.

In order to eliminate these drawbacks, the present invention allows any wires suitable for use to be used by easily twisting them together as needed, and the number of twists can be adjusted arbitrarily depending on the wire diameter and the location of use. To provide an electric wire holder which is used in a small-sized electric wire twisting machine which can be easily and easily set up, and which can simply and easily hold the ends of electric wires.

<Means for Solving the Problems> The present invention relates to an electric wire holder for an electric wire twisting machine that can reliably achieve the above-mentioned object, and the configuration thereof is as follows. To explain using a figure, the electric wire holder for the electric wire twisting machine according to the present invention includes a rotating shaft 2 connected to a motor M via a reduction gear 1, and a rotation speed at which the rotation speed of the rotating shaft 2 is set in advance. The wire holder A is fixed to the rotating shaft 2 of the wire twisting machine having the setting device 3 and is used to hold the ends of a plurality of wires K to be twisted, and the wire holder A has the It has a fitting hole 43 for attachment to the rotating shaft 2, a fitting part 44 for attaching the front member 6 on the front end side, and a plurality of wire insertion holes 41 formed along the axial direction. The rear member 4 has a structured structure, and the fitting portion 4 is provided on the back side.
4, and a plurality of wire insertion holes 61 formed along the axial direction at positions that match the wire insertion holes 41. a fixed front member 6;
A plurality of wire pressing parts 51 are located between these two members 4 and 6, are rotatable in the circumferential direction with respect to these two members, and open and close the wire insertion holes 41 and 61 to press the wires. a spring 7 located between the members 4, 6 and the intermediate member 5 and urging the intermediate member 5 in a direction to close the wire insertion holes 41, 61; When the intermediate member 5 is rotated in the circumferential direction against the biasing force of the spring 7, both the wire insertion holes 41 and 61 are in an open communication state.

<Function> When using the wire holder A for the wire twisting machine having such a structure, the intermediate member 5 is rotated in the circumferential direction against the biasing force of the spring 7 as shown in FIG. As shown in FIG. 7 and FIGS. 9 and 10, both wire insertion holes 41 and 61 are opened and communicated with each other, and as shown in FIG. 7 and FIGS. After inserting the wire into the hole 4, let go of the wire, and the biasing force of the spring 7 will force the wire K into the hole 4.
1 and 61, the other end of the electric wire K is held by hand, and the electric wire holder A is rotated to twist the plurality of electric wires together. When twisting the electric wires, the desired total number of twists is set by operating the rotation speed setting device 3 before the twisting operation, taking into account the length, thickness, number of twists between a predetermined length, etc. of the electric wires. Then, the wire holder A is rotated by a set number of revolutions, and a twisted wire K' having the required set number of twists is obtained.

<Examples> Examples of the present invention will be described below with reference to the drawings.

In addition to vinyl-covered wires, the electric wires mentioned in the present invention include rubber-covered wires, enamel-covered wires, and the like, and any wires that are covered and can be twisted together may be used. Further, the covered wire may be a collection of fine wires or a single wire. Furthermore, the twisting is not limited to only electric wires of the same type and diameter, but may also be a twisting of electric wires of different types and different diameters, such as a combination of a collective electric wire and a single wire, a large-diameter electric wire and a small-diameter electric wire, etc.

The embodiment shown in FIGS. 1 to 10 is one embodiment of the present invention, in which the wire twisting machine main body B includes a forward/reverse motor M, a speed reducer 1, and an electromagnetic clutch in a box-shaped housing 12. It has a brake 11 and various wiring mechanisms (not shown), and a housing 12.
A rotating shaft 2 is formed to protrude from the center of the front plate 13, and an electric wire holder A is fixed to the rotating shaft 2. As shown enlarged in FIGS. 2 to 8, the wire holder A has a hole 43 for attaching to the rotating shaft 2 on the rear end side 42, and a hole 43 for attaching the front member 6 on the front end side. Four through-round electric wire insertion holes 41 having convex fitting portions 44 and formed along the axial direction.
... a rear member 4 having a structure, and a concave fitting part 62 that fits with the convex fitting part 44 on the back side.
and the wire insertion hole 4 along the axial direction.
1, the front member 6 is fixed to the rear member 4 with bolts 9, and has four through-round electric wire insertion holes 61 formed at positions that match the positions of the front member 6 and the rear member 4.
and a wire pressing section located between these two members 4 and 6, which is rotatable in the circumferential direction with respect to these two members, and which opens and closes the wire insertion holes 41 and 61 and presses the wire. An intermediate member 5 having two through-holes 51 . When the intermediate member 5 is rotated in the circumferential direction against the biasing force of the spring 7, both the wire insertion holes 41 and 61 are in an open communication state. As shown in FIGS. 5 and 8, connecting pin holes 63 and 46 are formed in opposing positions in both the front and rear members 6 and 4, and the position regulating connecting pin 8 The relative position is regulated, and the intermediate member 5 is formed with a long hole 52 as shown in FIGS. The intermediate member 5 can be rotated in the circumferential direction within the circumferential direction.

Further, as shown in FIGS. 6 to 8, the coil spring 7 has one end connected to the locking hole of the intermediate member 5.
3, the other ends are respectively locked in the locking holes 47 of the rear member 4, and the intermediate member 5 is always biased clockwise in FIGS. 2 and 4.

Further, the rear end side 42 of the rear member 4 is formed to have a small diameter, and as shown in FIGS. 6 and 7, the tip of the electric wire K inserted into the electric wire insertion hole 41 is guided in the outer circumferential direction. However, the amount of insertion of the wire end into the hole can be freely adjusted.

On the left side of the front plate 13 of the wire twisting machine main body B, a rotation speed setting device 3 and a rotation shaft 2 are horizontally provided with a four (four digits) number board 31 that can be rotated from the front side. A rotation speed display section 14 for displaying the actual rotation speed of the engine is formed on the right side.
5. A forward/reverse changeover switch 16, an automatic/non-automatic stop changeover switch 17, a power indicator lamp 18, and a forward/reverse rotation direction indicator lamp 19 are provided, and a cord 20 is extended from one end of the housing 12 to provide a hood for rotating operation. A switch 10 is connected.

The outline of using the electric wire holder A for the electric wire twisting machine having such a structure is as described in the section of the operation above, but in order to use the electric wire twisting machine B of this embodiment, first turn on the power switch 15. is turned on, the direction of rotation of the rotary shaft 2 is determined by the forward/reverse changeover switch 16, and automatic stop or non-automatic stop is selected by the automatic/non-automatic stop changeover switch 17. For automatic stopping, set the necessary number of rotations by rotating the number plate 31, and rotate the intermediate member 5 of the wire holder A in the circumferential direction to open the wire insertion hole 41,
Insert and hold near the end of the electric wire K into 61,
As shown in FIGS. 9 and 10, hold the electric wire near the end with your hand, and step on the hood switch 10 with your foot to rotate it. By operating in this way, the motor M rotates, the rotating shaft 2 rotates via the reduction gear device 1, the number of rotations is displayed every moment on the number of rotations display section 14, and the rotating shaft 2 rotates a predetermined amount. When the power is
OFF, the motor M automatically stops, and at the same time, the electromagnetic clutch brakes, the brake 11 works, the rotating shaft 2 suddenly stops, the electric wire K... is twisted the required number of times, and the twisted electric wire K' is obtained. If you do not want it to stop automatically, press the automatic/non-automatic changeover switch 17.
By setting the hood switch 10 to the non-automatic side and depressing the hood switch 10, the motor M
rotates, and the rotating shaft 2 rotates. While watching the rotation display on the rotation speed display section 14, the operator
The twisted electric wire K' can be obtained by operating the hood switch 10 while checking the degree of twisting.

The electric wire holder A for an electric wire twisting machine according to the present invention may be implemented as another embodiment as follows.

As the connecting means for the front and rear members 6, 4, the 11th
As shown in the figure, the center part of the rear member 4 may be made to protrude forward to form a screw 48 and connected by tightening with a nut 9.
Moreover, as shown in FIG.
It can also be implemented as a structure in which both members 6, 4 are fitted together.
Any structure may be used as long as it can be positioned reliably.

Further, as shown in FIGS. 13 to 15, wire insertion holes 61, 41 in the front and rear members 6, 4
By making the hole into a cut groove cut in the centripetal direction from the outer peripheral surface, and by making the wire pressing part 51 in the intermediate member 5 into a cut groove in the same way,
A structure may be adopted in which the electric wire K is inserted from the outer circumferential surface in a centripetal direction. In this way, even if the electric wire K has a connecting terminal connected to its end, it can be twisted together.

In addition, as shown in FIGS. 16 and 17, when the intermediate member 5 is structured to be lever-shaped and can be rotated individually in the circumferential direction, the lower part of FIG. As shown in
The lever 5 can be rotated to securely hold one electric wire, making it convenient to use. Of course, the wire insertion hole 61 in this embodiment,
Needless to say, 41 may be a round through hole.

Further, the number of wire insertion holes 41, 61 is not limited to the four shown in each of the above embodiments, but it is sufficient to have at least two, and it is possible to form three, five or six holes. be.

In addition, the wire holder A for the wire twisting machine according to the present invention
In addition to the structure shown in the above embodiment, the structure of the wire twisting machine main body B to which the wire twisting machine body B is used may be the following structure.

The rotation speed setting device 3 may be formed of a three-digit or five-digit number board 31.

The rotation speed setting device 3 has a number board for setting the number of twists for a predetermined unit length, such as the number of twists for 1 inch or 100 mm, and a number board for inputting and setting the length of the electric wire to be twisted. It is also possible to provide a twist of the number of twists to the electric wire.

The rotation speed setting device 3 may be a setting device including a push button and a digital numeric display panel, such as a calculator or a push button type telephone.

Instead of a forward/reverse rotation motor, the motor M may be a one-way rotation motor, and forward/reverse rotation may be performed using a forward/reverse switching clutch. Alternatively, the structure may be such that twisting is performed only in one direction.

Although the embodiments considered to be representative of the present invention have been described above, the present invention is not necessarily limited to the structures of these embodiments. It can be implemented with appropriate modification within the scope of achieving the following effects.

<Effects of the invention> As is clear from the above explanation, the wire holder for the wire twisting machine according to the invention holds the wires using three members: the front and rear members and the intermediate member disposed in the middle. Since the structure is such that the necessary wires to be twisted can be inserted and held in the wire insertion hole, the wires can be held in the wire holder extremely reliably and easily. This has an extremely useful and practical effect in that it is possible to freely select, hold, and twist electric wires of different diameters and electric wires of different diameters on the spot.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway front view showing an embodiment of the device of the present invention, FIGS. 2 to 8 are views showing the main parts thereof, FIG. 2 is a front view, FIG. 3 is a side view, Figure 4 is a sectional view taken along the - line in Figure 3, and Figure 5 is a cross-sectional view taken along the line 2 in Figure 3.
6 is a central longitudinal sectional view passing through the wire insertion hole, FIG. 7 is a central vertical sectional view showing the wire insertion state, FIG. 8 is an exploded perspective view, and FIGS. 9 and 10. 11 and 12 are respectively a central vertical sectional view through a wire insertion hole showing another embodiment, and FIG. 15 to 15 are an exploded perspective view, a front view, and a front view with holes aligned, showing another embodiment, and FIGS. 16 and 17 are an exploded perspective view and a front view, showing still another embodiment. . In the figure, 1 is a speed reduction device, 2 is a rotating shaft, 3 is a rotation speed setting device, 4 is a rear member, 5 is an intermediate member, 6 is a front member, 7 is a spring, 41, 61 are holes for inserting electric wires, 44, 62 51 is a fitting part, 51 is a wire pressing part, A
indicates an electric wire holder, K indicates an electric wire, and M indicates a motor.

Claims (1)

[Claims for Utility Model Registration] The rotation of an electric wire twisting machine having a rotating shaft 2 connected to a motor M via a speed reduction device 1, and a rotation speed setting device 3 for presetting the rotation speed of the rotating shaft 2. A plurality of twisted wires K fixed to the shaft 2
... is an electric wire holder A used for holding the end of the wire, which has a hole 43 for attachment to the rotating shaft 2 on the rear end side 42, and a front member 6 on the front end side.
A rear member 4 has a fitting part 44 for attachment and has a plurality of wire insertion holes 41 formed along the axial direction, and the rear member 4 is fitted with the fitting part 44 on the back side. A plurality of wire insertion holes 61 are formed along the axial direction at positions that match the wire insertion holes 41.
a front member 6 fixed to the rear member 4; an intermediate member 5 having a plurality of wire pressing parts 51 that open and close 41, 61 and press the wires; It consists of a spring 7 biased in a direction to close the wire insertion holes 41 and 61, and when the intermediate member 5 is rotated in the circumferential direction against the biasing force of the spring 7, both the wires are inserted. hole 41,
An electric wire holder for an electric wire twisting machine having a structure in which 61 is in an open communication state. An electric wire holder for an electric wire twisting machine according to claim 1, wherein two electric wire insertion holes 41 and 61 are formed. An electric wire holder for an electric wire twisting machine according to claim 1, wherein four electric wire insertion holes 41 and 61 are formed. An electric wire holder for an electric wire twisting machine according to claim 1, wherein six electric wire insertion holes 41, 61 are formed. An electric wire holder for an electric wire twisting machine according to claim 1, wherein the spring 7 is a coil spring.