JP2011071043A - Electric wire connection tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric wire connection tool capable of easily connecting an electric wire, and superior in workability. <P>SOLUTION: In the electric wire connection tool 10, the electric wire is connected in the following procedures. (1) In a state that both slide rings 44 are slid to the center side of a sleeve 12, by inserting a conductor 50a of the electric wire 50 from both end openings into the sleeve, the conductor is pinched between the center side end parts 34a, 36a of a second plate part 34 and a third plate part 36 of the sleeve and an inner wall of a cylindrical body 14. (2) By sliding both slide rings to the opening side of the sleeve and pressing protruding parts 32c, 38c of the first plate part 32 and a fourth plate part 38 of the sleeve by the inner wall of a small diameter part 44b of the both slide rings, the conductor is pinched between bending parts 32b, 38b and the inner wall of the sleeve. (3) A stopper 46 is attached to the small diameter part of the both slide rings. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an electric wire connecting tool for connecting electric wires.

  Conventionally, a substantially cylindrical metal crimping sleeve has been used as an electric wire connecting tool for connecting electric wires (see, for example, Non-Patent Document 1). When connecting wires using this crimping sleeve, insert the conductor of the wire into the sleeve, and then deform the sleeve using a dedicated crimping tool to crimp the conductor and sleeve, and then insulate the sleeve The sleeve is insulated by winding a tape or the like.

http://www.asahi-net.or.jp/~yl1h-nkmr/parts/atyaku.html

  However, the above-described crimping sleeve is to insulate the sleeve by deforming the sleeve with a crimping tool and fixing the conductor to the sleeve, and then winding the insulating tape around the sleeve. The workability was poor.

  This invention is made | formed in view of the situation mentioned above, It aims at providing the electric wire connection tool which can connect an electric wire easily and was excellent in workability | operativity.

In order to achieve the above object, the present invention provides
A first slit pair, a second slit pair, a third slit pair, and a fourth slit pair formed of two slits having the same length and parallel to each other from one end opening to the other end opening of the cylindrical body are predetermined along the axial direction. The slits are formed at a distance from each other, and the slits are respectively formed between the center side end portions of the two slits of the second slit pair and the third slit pair. Between the two slits, a first plate portion whose opening side end portion is a free end, a second plate portion whose center side end portion is a free end, and a center side end portion is a free end. A conductive sleeve in which a third plate portion and a fourth plate portion having an opening-side end portion as a free end are provided, and a conductor of an electric wire is inserted into the cylindrical body from both end openings, and includes the first plate portion and the fourth plate portion. When the plate portion has a bent portion bent inward on the opening side end portion side, In addition, the bent portion of the bent portion protrudes outward of the cylindrical body, and the second plate portion and the third plate portion have a central side end portion protruding inward of the cylindrical body, and the central side end portion. A conductive sleeve capable of sandwiching the conductor of the electric wire between the portion and the inner wall of the cylindrical body,
An outer peripheral surface of the conductive sleeve in a state in which a cylindrical large diameter portion and a cylindrical small diameter portion having an outer diameter and an inner diameter smaller than those of the large diameter portion are continuously provided and the large diameter portion is disposed on the opening side of the cylindrical body. Two insulating slide rings that are slidable in the axial direction of the conductive sleeve, and when both the insulating slide rings are slid to the center side of the conductive sleeve, the inner wall of the large-diameter portion is the first. When the two insulating slide rings are slid to the opening side of the conductive sleeve without pressing the protruding portions of the plate portion and the fourth plate portion, the inner walls of the small diameter portions are the first plate portion and the fourth plate portion, respectively. Two insulating slide rings that press the protruding part of
An insulating stopper attached to the small diameter portion of both insulating slide rings when the two insulating slide rings are slid to the opening side of the conductive sleeve, respectively;
In a state where both the insulating slide rings are slid to the center side of the conductive sleeve, the conductors of the electric wires are inserted into the conductive sleeve from the openings at both ends, and the second plate portion and the third plate portion are inserted. The conductor is sandwiched between the center side end portion and the inner wall of the cylindrical body, and then both the insulating slide rings are slid to the opening side of the conductive sleeve, and the inner wall of the small diameter portion of the both insulating slide rings After pressing the protruding portions of the first plate portion and the fourth plate portion to push the bent portion inward, and sandwiching a conductor between the bent portion and the inner wall of the sleeve, the insulating stopper is Provided is an electric wire connecting tool which is mounted between the large diameter portions of both insulating slide rings and attached to a small diameter portion of the both insulating slide rings.

Further, the present invention provides a first slit pair, a second slit pair, a third slit pair, and a fourth slit, which are composed of two slits that are equal in length and parallel to each other from the vicinity of one end opening of the cylindrical body to the vicinity of the other end opening. A pair is formed at a predetermined interval along the axial direction, and between the opening side end portions of the two slits of the first slit pair and the fourth slit pair, and between the second slit pair and the third slit pair. Since the slits are formed between the center side end portions of the two slits, the opening side end portions are sequentially made free ends between the two slits of the first to fourth slit pairs. 1 plate part, a second plate part having a central end part as a free end, a third plate part having a central end part as a free end, and a fourth plate part having an open end part as a free end are provided. Conductor in which the conductor of the wire is inserted into the cylinder through the opening at both ends A sleeve, wherein the first plate portion and the fourth plate portion have a bent portion bent inward on the opening side end portion side, and the bent portion of the bent portion is located outward of the cylinder. The second plate portion and the third plate portion have a center side end portion protruding inward of the cylindrical body so that the conductor of the electric wire can be sandwiched between the central side end portion and the inner wall of the cylindrical body. A conductive sleeve, and
An outer peripheral surface of the conductive sleeve in a state in which a cylindrical large diameter portion and a cylindrical small diameter portion having an outer diameter and an inner diameter smaller than those of the large diameter portion are continuously provided and the large diameter portion is disposed on the opening side of the cylindrical body. Two insulating slide rings that are slidable in the axial direction of the conductive sleeve, and when both the insulating slide rings are slid to the center side of the conductive sleeve, the inner wall of the large-diameter portion is the first. When the two insulating slide rings are slid to the opening side of the conductive sleeve without pressing the protruding portions of the plate portion and the fourth plate portion, the inner walls of the small diameter portions are the first plate portion and the fourth plate portion, respectively. Two insulating slide rings that press the protruding part of
An insulating stopper attached to the small diameter portion of both insulating slide rings when the two insulating slide rings are slid to the opening side of the conductive sleeve, respectively;
In a state where both the insulating slide rings are slid to the center side of the conductive sleeve, the conductors of the electric wires are inserted into the conductive sleeve from the openings at both ends, and the second plate portion and the third plate portion are inserted. The conductor is sandwiched between the center side end portion and the inner wall of the cylindrical body, and then both the insulating slide rings are slid to the opening side of the conductive sleeve, and the inner wall of the small diameter portion of the both insulating slide rings After pressing the protruding portions of the first plate portion and the fourth plate portion to push the bent portion inward, and sandwiching a conductor between the bent portion and the inner wall of the sleeve, the insulating stopper is Provided is an electric wire connecting tool which is mounted between the large diameter portions of both insulating slide rings and attached to a small diameter portion of the both insulating slide rings.

  The wire connecting tool of the present invention has the above-described configuration, and after inserting the wire conductor into the sleeve and then sliding both slide rings to the opening side of the sleeve, the wire conductor is connected to the sleeve. By simply attaching the stopper to the small diameter part of the slide ring, the electric wire can be easily connected, and therefore the workability is excellent.

  In the present invention, the conductive sleeve is positioned at the axially central portion of the cylindrical body between the slits formed between the central side end portions of the two slits of the second slit pair and the third slit pair. A central plate portion may be provided, and a concave portion having a function as a conductor stopper may be provided in the central portion of the central plate portion.

  The electric wire connecting tool of the present invention can easily connect electric wires and is excellent in workability.

The electric wire connection tool which concerns on one Embodiment of this invention is shown, and is a perspective view which shows the state before temporarily fixing an electric wire to the said electric wire connection tool. It is a perspective view which shows the state which temporarily fixed the electric wire to the electric wire connection tool of FIG. It is a perspective view which shows the state before attaching an insulation stopper to the insulation slide ring of the wire connection tool of FIG. It is a perspective view which shows the state which attached the insulation stopper to the insulation slide ring of the wire connection tool of FIG. 1, and completed the connection of an electric wire. The conductive sleeve of the electric wire connection tool of FIG. 1 is shown, (a) is a top view, (b) is front sectional drawing, (c) is a left view. It is explanatory drawing which shows the connection procedure of the electric wire using the electric wire connection tool of FIG. 1, (a) is a figure which shows the state which temporarily fixed the electric wire, (b) is a figure which shows the state which the connection of the electric wire was completed. .

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the present invention is not limited to the following examples. 1 to 4 show an embodiment of a wire connecting tool according to the present invention. FIG. 1 is a perspective view (excluding an insulating stopper) showing a state before temporarily fixing the wire, and FIG. FIG. 3 is a perspective view showing a state before the insulation stopper is attached to the insulation slide ring, and FIG. 4 is a perspective view showing the state after the insulation stopper is attached to the insulation slide ring. It is a perspective view which shows the state which the connection was completed. 5 shows the conductive sleeve of the wire connecting tool of FIG. 1, wherein (a) is a plan view, (b) is a front sectional view, and (c) is a left side view.

  In the wire connecting tool 10 of this example, 12 is a conductive sleeve into which a conductor of the wire is inserted from both ends. For the sleeve 12, a metal such as copper, copper alloy, iron, iron alloy, aluminum, aluminum alloy, stainless steel, or a conductive material such as conductive resin (in this example, specifically, a Corson alloy (C7025) is used. .).

  As shown in FIG. 5, the sleeve 12 of this example is a first cylinder comprising two slits 20 a and 20 b that are equal in length and parallel to each other from one end opening 16 to the other end opening 18 of a substantially cylindrical tube 14. From the slit pair 20, the second slit pair 22 consisting of two similar slits 22a, 22b, the third slit pair 24 consisting of two similar slits 24a, 24b, and the same two slits 26a, 26b The fourth slit pair 26 is formed at a predetermined interval along the axial direction. Further, between the center side end portions of the two slits 22a and 22b of the second slit pair 22 and between the center side end portions of the two slits 24a and 24b of the third slit pair 24, respectively, the slit 28, 30 is formed.

  And between the two slits of the first to fourth slit pairs 20, 22, 24, 26, the first plate portion 32 having the opening side end portion 32a as a free end and the center side end portion 34a are free. A second plate portion 34 having an end, a third plate portion 36 having a central side end portion 36a as a free end, and a fourth plate portion 38 having an opening side end portion 38a as a free end are provided. . In addition, a central plate portion 40 is provided between the slits 28 and 30 and is located at the axially central portion of the cylindrical body 14.

  The first plate portion 32 and the fourth plate portion 38 have bent portions 32b and 38b bent inward on the opening side end portion side, and the bent portions 32c and 38c of the bent portions 32b and 38b are Projecting outward of the cylindrical body 14. In the second plate portion 34 and the third plate portion 36, the central side end portions 34 a and 36 a protrude inward of the cylindrical body 14, and an electric wire is interposed between the central side end portions 34 a and 36 a and the inner wall of the cylindrical body 14. It is possible to hold the conductor. Also, a substantially inverted conical recess 42 is provided at the center of the center plate 40, and when the conductor of the electric wire is inserted into the cylindrical body 14, the tip of the conductor hits the bottom surface of the recess 42 and stops. ing. That is, the concave portion 42 functions as a stopper for the conductor of the electric wire.

  In the wire connecting tool 10 of this example, 44 is two insulating slide rings that cover the outer peripheral surface of the sleeve 12. The slide ring 44 is formed of an insulating material such as an insulating resin (specifically, a polycarbonate resin is used in this example).

  The slide ring 44 of this example is formed by connecting a cylindrical large-diameter portion 44a and a cylindrical small-diameter portion 44b having an outer diameter and an inner diameter smaller than those of the large-diameter portion 44a. The outer peripheral surface of the sleeve 12 is covered in a state in which the opening side of the body 14 and the small diameter portion 44 b are arranged on the center side of the cylindrical body 14.

  The slide ring 44 is slidable in the axial direction of the sleeve 12. When the slide rings 44 are respectively slid to the center side of the sleeve 12, as shown in FIG. 6A, the inner wall of the large-diameter portion 44a. When the slide rings 44 are slid to the opening side of the sleeve 12 without pressing the protruding portions 32c and 38c of the first plate portion 32 and the fourth plate portion 38, respectively, as shown in FIG. The inner wall of the small diameter portion 44b presses the protruding portions 32c and 38c of the first plate portion 32 and the fourth plate portion 38. More specifically, the inner diameter of the small diameter portion 44b is substantially equal to the inner diameter of the cylindrical body 14 of the sleeve 12, and the inner diameter of the large diameter portion 44a is the same as the inner diameter of the cylindrical body 14 of the sleeve 12, the first plate portion 32, and the first plate portion 32. It is almost equal to the sum of the four plate portions 38 and the length of the protrusion in the radial direction.

  In the electric wire connecting tool 10 of this example, 46 is an insulation stopper. The stopper 46 is a circular arc section formed of an insulating material such as an insulating resin (specifically, in this example, a POM (polyoxymethylene) resin is used). It is formed slightly larger than the circular arc length of the circle.

  The stopper 46 has flexibility, and when the two slide rings 44 are respectively slid to the opening side of the sleeve 12, the small diameter portions 44 b of both slide rings 44 are interposed between the large diameter portions 44 a of both slide rings 44. This prevents both slide rings 44 from sliding toward the center of the sleeve 12. In this case, when the small-diameter portion 44b of the slide ring 44 is pushed into the stopper 46 from the opening 46a on the outer peripheral surface of the stopper 46, the width of the opening 46a is widened and the small-diameter portion 44b enters the stopper 46, and then the opening By returning the width of the portion 46 a to the original state, the small diameter portion 44 b is accommodated in the stopper 46.

The connection of the electric wire using the electric wire connecting tool 10 of this example is performed according to the following procedures (1) to (3). In addition, there is no limitation in particular in the kind of electric wire.
(1) As shown in FIG. 6 (a), with both slide rings 44 slid to the center side of the sleeve 12, the conductor 50a of the electric wire 50 with the sheath removed from both end openings is inserted into the sleeve 12. To do. As a result, the conductor 50a is sandwiched between the center side end portions 34a and 36a of the second plate portion 34 and the third plate portion 36 of the sleeve 12 and the inner wall of the cylindrical body 14, and the electric wire 50 is temporarily attached to the wire connecting tool 10. It is stopped (see FIGS. 1 and 2). The tip of the conductor 50a hits the bottom surface of the recess 42 and does not advance further.
(2) As shown in FIG. 6B, the slide rings 44 are respectively slid to the opening side of the sleeve 12, and the first plate portion 32 and the fourth plate portion 38 are formed on the inner walls of the small diameter portions 44b of the slide rings 44. The protruding portions 32c and 38c are pressed, the bent portions 32b and 38b are pushed inward, and the conductor 50a is sandwiched between the bent portions 32b and 38b and the inner wall of the sleeve 12 (see FIG. 3). In addition, the small diameter part 44b of both the slide rings 44 hits the insulator 50b of the electric wire 50, and does not advance any more.
(3) As shown in FIG. 6B, the stopper 46 is mounted on the small diameter portion 44b of both slide rings 44 between the large diameter portions 44a of both slide rings 44 (see FIG. 4). Thereby, both the slide rings 44 are slid to the center side of the sleeve 12, and the conductor 50a is prevented from being detached from the sleeve 12, and the sleeve 12 and the conductor 50a are electrically insulated.

  As described above, the wire connecting tool according to the present embodiment is simply mounted on the small diameter portion of the slide ring after inserting the conductor of the wire into the sleeve and then sliding both slide rings to the opening side of the sleeve. Therefore, since the electric wires can be easily connected, the workability is excellent.

  The wire connecting tool of the present invention is not limited to the above embodiment, and the material, shape, structure, etc. of the conductive sleeve, the insulating slide ring, and the insulating ring stopper can be appropriately set. For example, in the above embodiment, both the slits of the first and fourth slit pairs of the conductive sleeve are extended to the opening of the cylindrical body, but both slits are formed to the vicinity of the opening of the cylindrical body, and the opening side end portions of both slits The first and fourth plate portions may be provided by forming a slit therebetween.

DESCRIPTION OF SYMBOLS 10 Electric wire connection tool 12 Conductive sleeve 14 Cylinder 16 One end opening 18 Other end opening 20 1st slit pair 20a, 20b Slit 22 2nd slit pair 22a, 22b Slit 24 3rd slit pair 24a, 24b Slit 26 4th slit pair 26a, 26b Slit 28, 30 Slit 32 First plate portion 32a Open side end 34 Second plate portion 34a Center side end 36 Third plate portion 36a Center side end 38 Fourth plate portion 38a Open side end 40 Center Plate part 42 Concave part 44 Insulating slide ring 44a Large diameter part 44b Small diameter part 46 Insulation stopper 50 Electric wire 50a Conductor 50b Insulator

Claims (3)

A first slit pair, a second slit pair, a third slit pair, and a fourth slit pair formed of two slits having the same length and parallel to each other from one end opening to the other end opening of the cylindrical body are predetermined along the axial direction. The slits are formed at a distance from each other, and the slits are respectively formed between the center side end portions of the two slits of the second slit pair and the third slit pair. Between the two slits, a first plate portion whose opening side end portion is a free end, a second plate portion whose center side end portion is a free end, and a center side end portion is a free end. A conductive sleeve in which a third plate portion and a fourth plate portion having an opening-side end portion as a free end are provided, and a conductor of an electric wire is inserted into the cylindrical body from both end openings, and includes the first plate portion and the fourth plate portion. When the plate portion has a bent portion bent inward on the opening side end portion side, In addition, the bent portion of the bent portion protrudes outward of the cylindrical body, and the second plate portion and the third plate portion have a central side end portion protruding inward of the cylindrical body, and the central side end portion. A conductive sleeve capable of sandwiching the conductor of the electric wire between the portion and the inner wall of the cylindrical body,
An outer peripheral surface of the conductive sleeve in a state in which a cylindrical large diameter portion and a cylindrical small diameter portion having an outer diameter and an inner diameter smaller than those of the large diameter portion are continuously provided and the large diameter portion is disposed on the opening side of the cylindrical body. Two insulating slide rings that are slidable in the axial direction of the conductive sleeve, and when both the insulating slide rings are slid to the center side of the conductive sleeve, the inner wall of the large-diameter portion is the first. When the two insulating slide rings are slid to the opening side of the conductive sleeve without pressing the protruding portions of the plate portion and the fourth plate portion, the inner walls of the small diameter portions are the first plate portion and the fourth plate portion, respectively. Two insulating slide rings that press the protruding part of
An insulating stopper attached to the small diameter portion of both insulating slide rings when the two insulating slide rings are slid to the opening side of the conductive sleeve, respectively;
In a state where both the insulating slide rings are slid to the center side of the conductive sleeve, the conductors of the electric wires are inserted into the conductive sleeve from the openings at both ends, and the second plate portion and the third plate portion are inserted. The conductor is sandwiched between the center side end portion and the inner wall of the cylindrical body, and then both the insulating slide rings are slid to the opening side of the conductive sleeve, and the inner wall of the small diameter portion of the both insulating slide rings After pressing the protruding portions of the first plate portion and the fourth plate portion to push the bent portion inward, and sandwiching a conductor between the bent portion and the inner wall of the sleeve, the insulating stopper is An electric wire connecting tool, which is mounted between the large diameter portions of both insulating slide rings and attached to the small diameter portions of the both insulating slide rings. A first slit pair, a second slit pair, a third slit pair, and a fourth slit pair, which are composed of two slits having the same length and parallel to each other from the vicinity of one end opening of the cylindrical body to the vicinity of the other end opening, extend along the axial direction. Are formed at a predetermined interval, and between the opening side end portions of the two slits of the first slit pair and the fourth slit pair and the center of the two slits of the second slit pair and the third slit pair. By forming slits between the side end portions, the first plate portion, in which the opening side end portion is a free end, and the center side between the two slits of the first to fourth slit pairs. A second plate portion whose end is a free end, a third plate portion whose central end is a free end, and a fourth plate portion whose open end is a free end are provided. A conductive sleeve into which the conductor of the wire is inserted. The first plate portion and the fourth plate portion have a bent portion bent inward on the opening side end portion side, and a bent portion of the bent portion protrudes outward of the cylindrical body, The second plate portion and the third plate portion are configured such that the center side end portion protrudes inward of the cylindrical body so that the conductor of the electric wire can be sandwiched between the central side end portion and the inner wall of the cylindrical body. A conductive sleeve;
An outer peripheral surface of the conductive sleeve in a state in which a cylindrical large diameter portion and a cylindrical small diameter portion having an outer diameter and an inner diameter smaller than those of the large diameter portion are continuously provided and the large diameter portion is disposed on the opening side of the cylindrical body. Two insulating slide rings that are slidable in the axial direction of the conductive sleeve, and when both the insulating slide rings are slid to the center side of the conductive sleeve, the inner wall of the large-diameter portion is the first. When the two insulating slide rings are slid to the opening side of the conductive sleeve without pressing the protruding portions of the plate portion and the fourth plate portion, the inner walls of the small diameter portions are the first plate portion and the fourth plate portion, respectively. Two insulating slide rings that press the protruding part of
An insulating stopper attached to the small diameter portion of both insulating slide rings when the two insulating slide rings are slid to the opening side of the conductive sleeve, respectively;
In a state where both the insulating slide rings are slid to the center side of the conductive sleeve, the conductors of the electric wires are inserted into the conductive sleeve from the openings at both ends, and the second plate portion and the third plate portion are inserted. The conductor is sandwiched between the center side end portion and the inner wall of the cylindrical body, and then both the insulating slide rings are slid to the opening side of the conductive sleeve, and the inner wall of the small diameter portion of the both insulating slide rings After pressing the protruding portions of the first plate portion and the fourth plate portion to push the bent portion inward, and sandwiching a conductor between the bent portion and the inner wall of the sleeve, the insulating stopper is An electric wire connecting tool, which is mounted between the large diameter portions of both insulating slide rings and attached to the small diameter portions of the both insulating slide rings.   The conductive sleeve has a central plate portion located at a central portion in the axial direction of the cylindrical body between slits formed between center side ends of the two slits of the second slit pair and the third slit pair. The wire connecting tool according to claim 1, wherein a recess having a function as a conductor stopper is provided in a central portion of the central plate portion.