JP2928634B2 - Wire exposure hole processing tool and processing method for strip-shaped electric wire - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a strip-shaped electric wire formed by covering a strip-shaped electric wire with a band-shaped electric insulator, and a portion on the conductor of the insulator on one side of the strip-shaped electric wire. Processing the conductor exposure hole to expose the conductor,
The present invention relates to a tool for exposing a conductive wire to a strip-shaped electric wire and a processing method.

[Conventional technology]

Conventionally, the electrical connection of parts such as a light bulb socket to a strip-shaped electric wire is generally performed as described in Japanese Utility Model Publication No. 59-26552, in which an insulator is missing on the back side of the strip-shaped electric wire and the conductor is exposed. This is done by providing an insulator missing portion, and connecting the conductors to the terminals of the component in the insulator missing portion.

[Problems to be solved by the invention]

Since the insulator missing portion cannot be formed on the user side and must be formed by the wire maker at the time of manufacturing the strip-shaped wire, the user specifies the installation interval of the insulator missing portion when ordering the strip-shaped wire. After purchasing the strip-shaped electric wire, it was not possible to appropriately select the installation interval of the insulator missing portion and the electrical connection interval.

The present invention has been made in view of such circumstances,
A strip-shaped electric wire, which can efficiently drill a conductor exposure hole for a completed strip-shaped electric wire, and enables a user to appropriately select a position for making an electrical connection to the completed strip-shaped electric wire. It is an object of the present invention to provide a tool and a method for processing a conductor exposed hole.

[Means for solving the problem]

The wire exposure hole processing tool for the strip-shaped electric wire according to the present invention,
A tool for exposing a strip-shaped electric wire to a strip-shaped electric wire, wherein a conductor-exposed hole for exposing the conductor is formed in a portion of the insulator on the conductor on one side of the strip-shaped electric wire covered with the band-shaped electric insulator. And a portion supported by a driving device for rotating the processing tool about the axis of the distal end portion.

In addition, the method for forming a conductive wire exposed hole on a strip-shaped electric wire according to the present invention includes exposing the conductive wire to a portion of the insulator on the conductive wire on one surface side of the strip-shaped electric wire formed by covering the strip-shaped electric wire with the strip-shaped electric insulator. A method for drilling a conductive wire exposed hole for a strip-shaped electric wire, comprising: rotating the distal end of a conductive wire exposed hole processing tool having a cylindrical distal end portion about an axis of the distal end portion. Then, a portion of the insulator on the conductor on one surface side of the strip-shaped electric wire is pressed in a direction perpendicular to the band-shaped electric wire to open a conductor exposure hole in the portion.

[Action]

In the present invention, while rotating the tip of the wire exposure hole processing tool around the axis of the tip, the portion on the conductor wire of the insulator on one side of the strip-shaped electric wire is perpendicular to the strip-shaped electric wire. When pressed in the direction, the annular portion of the insulator that is in contact with the tip of the processing tool softens due to frictional heat,
In addition, the softened annular portion is separated from the other portion of the insulator by the rotational force received from the tip of the processing tool so as to be separated from the other portion of the insulator, so that a conductor exposure hole is formed in the insulator. Further, at this time, a circular chipping of the insulator is in a state of being fitted into the tip of the processing tool.

〔Example〕

Hereinafter, the present invention will be described based on embodiments shown in the drawings.

1 to 3 show a conductor exposure hole processing tool 30 for a strip-shaped electric wire according to an embodiment of the present invention. The processing tool 30 is made of a metal such as steel, and has a shaft portion 31, an intermediate portion 32, and a tip portion 33. The shaft portion 31 has a circular cross section,
The device is chucked by a device (not shown) that can move up and down while driving and rotating the processing tool 30, such as a drilling machine. The tip portion 33 has a cylindrical shape coaxial with the shaft portion 31, and the outer peripheral surface of the tip portion gradually increases in diameter toward the shaft portion 31. In addition, a concave portion 35 is provided on the annular frontmost surface of the distal end portion 32. The intermediate part 32 includes
It is provided between the shaft portion 31 and the tip portion 33, and has a width larger than the diameter of the shaft portion 31 and the tip portion 33. The intermediate portion 32 has a passage 34 formed of a space in the distal end portion 33 and a T.
Dump discharge holes 36 that intersect in a letter shape are provided.

FIGS. 1, 2 and 4 to 6 show a strip-shaped electric wire 1 to be processed in the present invention. This strip-shaped electric wire 1
Is formed by covering two strip-shaped conductors 2 with a strip-shaped electric insulator 3 made of a polymer such as vinyl chloride, polypropylene, rubber or the like, and the conductors 2 are parallel to each other with a slight gap therebetween ( In the present invention, the number of conductors provided in one belt-shaped electric wire is not limited to two as in this embodiment.)

Next, a method of forming a conductive wire exposed hole in the strip-shaped electric wire 1 in the present embodiment will be described.

The shaft 31 of the processing tool 30 is attached to a device such as the drilling machine so that the processing tool 30 is perpendicular to the strip-shaped electric wire 1 as shown in FIGS. Next, the processing tool 30 is lowered while being rotated about the axis of the processing tool 30 by an apparatus such as the drilling machine, and the leading end 33 of the lowering tool 30 is connected to the conductor of the insulator 3 on one side of the strip-shaped electric wire 1. 2 Press on the upper part. Then, the annular portion of the insulator 3 that is in contact with the distal end portion 33 of the processing tool 30 is softened by frictional heat, and the softened annular portion is caused to rotate by the rotational force received from the distal end portion 33 of the processing tool 30. 3 is detached from the other portion of the strip-shaped wire 1, thereby forming a wire-exposed hole 4 in a portion of the insulator 3 on the wire 2 on one side of the strip-shaped wire 1.

If a concave portion 35 of an appropriate size is provided at the foremost portion of the distal end portion 33 of the processing tool 30 as in this embodiment, the softened annular portion of the insulator 3 is hooked on the concave portion 35, Since it is more efficiently peeled off from the other part of the insulator 3, the conductive wire exposure hole 4 can be processed more favorably.

As shown in FIG. 4, after the leading end surface of the tip portion 33 of the processing tool 30 abuts on the conductor 2 and the conductor exposure hole 4 is completely formed, the processing tool 30 is pulled up to remove the circular shape of the insulator 3. The residue 3a fits in the passage 34 of the tip 33 and remains there. Then, in the same manner as described above, when the conductive wire exposure holes 4 are formed one after another in other portions of the conductive wire 3 of the strip-shaped electric wire 1, the chips 3 a in the passage 34 are newly inserted into the passage 34. It is pushed up by the chips 3a and pushed out into the chip discharge holes 36, and is further blown out of the discharge holes 36 by centrifugal force.

 7 to 10 show another embodiment of the present invention.

The processing tool 40 is made of a metal such as steel, and has a shaft portion 41 and a tip portion. And in the center of the processing tool 40,
A center hole 44 penetrating the entire processing tool 40 is provided.
The diameter of the outer peripheral surface of the tip portion 42 is gradually increased toward the shaft portion 41 side. In addition, at the annular tip of the tip 42,
A recess 43 is provided.

The shaft portion 41 of the processing tool 40 is attached to a device such as a drilling machine in the same manner as in the above embodiment. In the state where the processing tool 40 is attached to a device such as a drilling machine, a wire 45 is inserted into the center hole 44 of the processing tool 40, and as shown in FIG. The wire 45 is fixed at a position where the tip of the wire 45 projects outside from the center hole 44 when the wire 45 is located above the predetermined height.

Also in this embodiment, the processing tool 40 is lowered while rotating about the axis of the processing tool 40,
42 is pressed against a portion of the insulator 3 on the conductor 2 on one side of the strip-shaped electric wire 1. Then, as in the case of the above-described embodiment, a conductor exposure hole 4 is formed in a portion of the insulator 3 on the conductor 2 on one side of the strip-shaped electric wire 1. In addition, as shown in FIG. 8, a circular chip 3a of the insulator 3 remains in the center hole 44 of the processing tool 30.

Next, as shown in FIG. 9, when the processing tool 40 is raised, the wire
The tip 3 of 45 is pushed out from the center hole 44 to the outside 3a.
The dust 3a extruded to the outside can be blown off by blowing air by a compressor or the like (arrows in the figure indicate this blowing).

Next, an example of a strip-shaped light emitting device constituted by using the strip-shaped electric wire 1 having the conductive wire exposed hole 4 according to the present invention will be described.

11 to 22 show an example of such a band-shaped light emitting device.
On one side of the strip-shaped electric wire 1 (see FIG. 14), a conductor-exposing hole 4 is formed at a predetermined interval in the length direction of the electric wire 1 in a portion of the insulator 3 on the conductor 2.

In FIGS. 11 to 13, 15 to 17, reference numeral 5 denotes a socket made of plastic, and a pair of elongated rectangular terminal passage holes 5a are provided near the center of the bottom of the socket 5 in the longitudinal direction. They are provided at intervals corresponding to the interval between the two. The socket 5 has its bottom surface fixed to the surface of the strip-shaped electric wire 1 on the side where the conductive wire exposure hole 4 is provided by ultrasonic welding or bonding. In addition, the position of each socket 5 with respect to the strip-shaped electric wire 1 is determined such that each terminal passage hole 5a is located on each conductive wire exposure hole 4. As shown in FIGS. 11 and 12, one end of the solenoid 5 has an engaging portion.
5b is provided integrally. This engagement part 5b is a socket 5
And a space 6 is formed between the engaging portion 5b and the strip-shaped electric wire 1. At the other end of the socket 5, a locking piece 5c that rises vertically from the bottom of the socket 5 is integrally provided, and a hooking projection 5d is integrally formed at the tip of the locking piece 5c. It is provided in.

In FIGS. 11 to 13, 18 to 22, reference numeral 7 denotes a light bulb adhesive made of plastic. A small incandescent light bulb 8 is fitted in the light bulb mounting body 7 in a lateral direction. As shown in FIGS. 21 and 22, a pair of terminal accommodating holes 7a that are open to the bottom side of the bulb mounting body 7 are provided at the end of the bulb mounting body 7 on the bottom side of the bulb 8. ing. In these terminal receiving holes 7a, the U-shaped curved one ends of a pair of contact terminals 9 made of a good electrical conductor having a good spring property are accommodated. Are electrically connected to the pair of lead wires 8a. The other end of each contact terminal 9 projects outside the bulb mounting body 7. The other end of the bulb mounting body 7 is provided with an engagement projection 7b protruding in the length direction of the bulb mounting body 7.

The bulb mounting body 7 is attached to the socket 5 as follows. After inserting the projection 7b into the space 6 by tilting the bulb mounting body 7 as shown in FIG. 12, when the other end of the mounting body 7 is pushed toward the electric wire 1, the locking piece 5c is dashed and dashed due to its elasticity. As shown by the arrow, the mounting body 7 is bent outward, and is allowed to be pushed into the electric wire 1 side. When the bottom of the bulb mounting body 7 contacts the bottom of the socket 5 as shown in FIG. 11, the engaging projection 7b of the bulb mounting body 7 and the surrounding area engage with the engaging portion 5b of the socket 5. At the same time, the locking projection 5d of the locking piece 5c engages with the end of the bulb mounting body 7 on the locking piece 5c side, whereby the bulb mounting body 7 is securely attached to the socket 5. When the bulb mounting body 7 is attached to the socket 5 as described above, the tip of each contact terminal 9 is connected to the conductor exposure hole 4.
At contact with the conductor 2 of the electric wire 1.

When you want to remove the bulb mount 7 from the socket 5,
Pull the locking projection 5d rightward in FIGS. 11 and 12,
By disengaging the locking projection 5d from the end of the bulb mounting body 7, the bulb can be easily removed.

In this strip-shaped light emitting device, the conductor exposure hole 4 can be formed in the strip-shaped electric wire 1 already completed.
As in the related art, the electrical connection position (the position where the socket is installed) is not specified in the manufacturing process of the strip-shaped electric wire 1, and the electric connection position can be appropriately selected for the completed strip-shaped electric wire 1. Further, since it is not necessary to solder the strip-shaped electric wire to 1, the production efficiency can be improved and the production cost can be reduced.

The above-mentioned band-shaped light emitting device is an example in which the light bulb 8 is attached in a direction parallel to the band-shaped electric wire 1 (horizontal direction). FIG. Here is an example.

In this case, the socket 11 has a substantially cylindrical shape, and the bottom portion of the socket 11 is positioned on the surface on the side where the lead-out exposure hole 4 of the strip-shaped electric wire 1 is provided, so that each conductor exposure hole 4 is located in the socket 11. And fixed by ultrasonic welding or bonding.

The light bulb mounting body 12 made of plastic has a substantially cylindrical shape with a bottom, and near the bottom of the light bulb adhesive body 12,
A pair of terminal accommodating recesses 12a extending in the radial direction from the outer peripheral surface of the bulb mounting body 12 to the vicinity of the center of the bulb adhesive body 12 are provided. One end of the pair of contact terminals 13 made of a good conductor and curved in a U-shape is accommodated therein. These contact terminals 13
The other end of each contact terminal 13 protrudes below the bulb mounting body 12 in the receiving hole 12a, and is electrically connected to the lead wire 8a of the bulb 8 respectively.

In this light emitting device, the bulb mounting body 12 is
Of the contact terminal 13 is brought into contact with the conductor 2 of the electric wire 1 in the conductor exposure hole 4.

Further, if the bulb mounting body 12 is pulled in a direction away from the electric wire 1, the bulb mounting body 12 can be easily removed from the socket 11.

In the example of the light emitting device, an incandescent light bulb is used as the light emitting element, but an element other than the incandescent light bulb such as an LED may be used as the light emitting element.

Further, in the example of the light emitting device, the terminals of the components such as the light emitting element are brought into contact with the conductors of the band-shaped electric wire to obtain the electrical connection. By doing so, an electrical connection may be obtained.

〔The invention's effect〕

As described above, according to the present invention, a wire exposure hole is efficiently drilled in an already completed strip-shaped electric wire, and a component such as a light-emitting element can be electrically connected to the strip-shaped electric wire in the wire-exposed hole. Thus, an excellent effect is obtained in that the electrical connection position is not specified in the manufacturing process of the strip-shaped electric wire, and the electrical connection position can be appropriately selected.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing an embodiment of the present invention (cross-sectional position is taken along line II of FIG. 2), FIG. 2 is a side view showing the embodiment, and FIG. FIG. 4 is a bottom view showing the hole drilling tool, FIG. 4 is a cross-sectional view showing a state where the leading end of the wire exposure hole drilling tool is in contact with the conductive wire in the embodiment, and FIG. FIG. 6 is a cross-sectional view showing a state where the processing tool is pulled up after processing the exposed hole, FIG. 6 is a plan view showing a strip-shaped electric wire processed with the conductive wire exposed hole, and FIG. 7 shows another embodiment of the present invention. FIG. 8 is a cross-sectional view showing a state in which the leading end of the conductor exposure hole processing tool is in contact with the conductor in this embodiment. FIG. 9 is a diagram showing a state after the conductor exposure hole is machined in the strip-shaped electric wire in this embodiment. , A cross-sectional view showing a state in which the processing tool is pulled up, FIG. 10 is a bottom view showing a conductor exposure hole processing tool in the embodiment, FIG. 11 is a cross-sectional view showing an example of a band-shaped light emitting device constituted by using a band-shaped electric wire having a conductor exposed hole processed according to the present invention, and FIG. 12 shows a process of attaching a bulb mounting body to a socket in the light emitting device. Cross section, thirteenth
FIG. 14 is a cross-sectional view taken along the line XIII-XIII in FIG. 1, FIG. 14 is a plan view showing a strip-shaped electric wire in the light-emitting device, and FIG. 15 is a plan view showing a socket in the light-emitting device mounted on the strip-shaped electric wire. 16, FIG. 16 is a front view showing the socket mounted on the strip-shaped electric wire, FIG. 17 is a side view showing the socket mounted on the strip-shaped electric wire, and FIG. 18 is a bulb mounting body in the light emitting device. Front view showing a state in which a light bulb is mounted, FIG. 19 is a left side view showing the light bulb mounted body with a light bulb mounted, FIG. 20 is a right side view showing the light bulb mounted body with a light bulb mounted, FIG. 21 is a cross-sectional view taken along line XXI-XXI of FIG. 20, FIG. 22 is a bottom view showing the bulb mounting body, FIG.
The figure is a cross-sectional view showing another example of a band-shaped light emitting device constituted by using a band-shaped electric wire in which a conductor exposure hole is processed according to the present invention. 1 ... strip-shaped electric wire, 2 ... lead wire, 3 ... electric insulator, 4 ...
... conductor exposed hole, 30 ... conductor exposed hole processing tool, 31 ... shaft part of processing tool, 33 ... tip part of processing tool, 40 ... conductor exposed hole processing tool, 41 ... shaft part of processing tool, 42 ... The tip of the processing tool.

Claims (3)

(57) [Claims] 1. A strip-shaped electric wire formed by covering a strip-shaped electric wire with a strip-shaped electric insulator, a conductor-exposing hole for exposing the conductor is drilled in a portion of the insulator on the conductor on one surface side. A conductor exposure hole processing tool, comprising: a cylindrical tip end; and a portion supported by a driving device that rotates the processing tool about the axis of the tip end. tool. 2. The tool according to claim 1, wherein a concave portion is provided at a foremost portion. 3. A strip-shaped electric wire formed by covering a strip-shaped electric wire with a strip-shaped electric insulator, a conductor-exposing hole for exposing the conductor is formed in a portion of the insulator on the conductor on one side of the electric wire. A wire exposure hole processing method, wherein the tip of a wire exposure hole processing tool having a cylindrical tip portion, while rotating the processing tool about the axis of the tip portion,
A method of processing a conductor-exposed hole for a strip-shaped electric wire, comprising pressing a portion of the insulator on the conductor on one surface side of the band-shaped electric wire in a direction perpendicular to the band-shaped electric wire so as to open the conductor-exposed hole in the portion.