JP2023064779A - plug - Google Patents

Abstract

To obtain a plug that can attach cables of different thicknesses.SOLUTION: A plug that is connected to a cable that has a core and a conductor that is different from the core includes a first electrode having a pin-shaped terminal electrically connected to the core wire, a cylindrical second electrode insulated from the first electrode via an insulating member, a housing portion connected to the second electrode and into which the cable is inserted, and a cylindrical cable conversion pipe into which the cable is inserted and detachable according to the cable diameter, and the cable conversion pipe covers the side surface of the pin-shaped terminal through the cable in the attached state.SELECTED DRAWING: Figure 2

Description

The present invention relates to a plug for connecting cables to electronic equipment.

As a conventional plug, for example, an electrical connector to which a coaxial cable having a single conducting wire and a ground wire is connected is disclosed (see, for example, Patent Document 1). The electrical connector disclosed in Patent Document 1 has a base portion to which a coaxial cable is attached, a probe portion connected to a conducting wire, and a housing that supports the probe portion via an insulating ring. An opening parallel to the longitudinal direction of the electrical connector is formed inside the base portion of the electrical connector, and a coaxial cable is inserted into the opening.

U.S. Pat. No. 7,425,153

The electrical connector disclosed in Patent Literature 1 has a problem that it is necessary to prepare electrical connectors having openings of different diameters in the base portion corresponding to cables of different thicknesses.

SUMMARY OF THE INVENTION An object of the present invention is to provide a plug to which cables having different thicknesses can be attached.

A plug according to the present invention is a plug to be connected to a cable having a core wire and a conductor different from the core wire, the plug including a first electrode having a pin-shaped terminal electrically connected to the core wire, and an insulating member. a cylindrical second electrode insulated from the first electrode via a cylindrical second electrode; a housing portion connected to the second electrode and into which the cable is inserted; a housing portion into which the cable is inserted; and a cylindrical cable conversion pipe that can be attached and detached according to need, wherein the cable conversion pipe covers the side surface of the pin-shaped terminal through the cable when the cable conversion pipe is attached.

According to the present invention, since a detachable cylindrical cable conversion pipe is provided, cables having different thicknesses can be attached to the plug. Therefore, it is not necessary to prepare different plugs corresponding to the thickness of the cable.

1 is an external view showing one configuration example of a plug according to Embodiment 1. FIG. FIG. 2 is a schematic cross-sectional view showing one configuration example of the plug shown in FIG. 1; FIG. 3 is a diagram showing a configuration example of a cable conversion pipe 7 shown in FIG. 2; FIG. 3 is a schematic cross-sectional view showing a state in which a cable conversion pipe is removed from the plug shown in FIG. 2; FIG. 3 is an enlarged view of a portion surrounded by a dashed circle in the plug shown in FIG. 2; FIG. 2 is an external schematic diagram showing one configuration example of a cable attached to the plug according to Embodiment 1; FIG. 3 is a schematic diagram showing an example of a procedure for attaching a cable to the plug shown in FIG. 2; FIG. 3 is a schematic diagram showing an example of a procedure for attaching a cable to the plug shown in FIG. 2; FIG. 3 is a schematic diagram showing an example of a procedure for attaching a cable to the plug shown in FIG. 2; 4 is a schematic cross-sectional view showing another configuration example of the plug according to Embodiment 1. FIG. FIG. 9 is an external view showing one configuration example of a plug according to Embodiment 2; 12 is a schematic cross-sectional view showing one configuration example of the plug shown in FIG. 11; FIG. 12 is a rear view of the plug shown in FIG. 11; FIG. 13 is a schematic cross-sectional view showing a state in which a cable conversion pipe is removed from the plug shown in FIG. 12; FIG. FIG. 13 is a diagram showing a configuration example of the cable conversion pipe shown in FIG. 12; 13 is a diagram showing another configuration example of the cable conversion pipe shown in FIG. 12. FIG. 13 is a diagram showing another configuration example of the cable conversion pipe shown in FIG. 12. FIG. FIG. 8 is an external view showing another configuration example of the plug according to the second embodiment; FIG. 19 is a schematic cross-sectional view showing the configuration of the plug shown in FIG. 18;

In the embodiments described below, the case of a plug capable of electrically connecting electrodes and wiring without soldering will be described. For convenience of explanation of the embodiments, arrows of three axes (X-axis, Y-axis and Z-axis) defining directions are displayed in part of the drawing.

Embodiment 1.
The configuration of the plug according to the first embodiment will be described. FIG. 1 is an external view showing one configuration example of a plug according to Embodiment 1. FIG. FIG. 2 is a schematic cross-sectional view showing one configuration example of the plug shown in FIG.

The plug 1 has a first electrode 2 electrically connected to a core wire of a cable (not shown) and a second electrode 3 electrically connected to a conductor different from the core wire of the cable (not shown). , a housing portion 4 connected to the second electrode 3 , and a cap 5 covering a portion of the housing portion 4 . An insulating member 6 is provided between the first electrode 2 and the second electrode 3 . The material of the first electrode 2, the second electrode 3, the housing part 4 and the cap 5 is a conductive metal. The material of the insulating member 6 is resin, for example. The plug 1 shown in FIG. 1 is, for example, a plug in which the diameter of the second electrode 3 is 6.3 mm. In the plug 1 shown in FIG. 1, the direction opposite to the X-axis arrow is called the front end side, and the direction of the X-axis arrow is called the rear end side.

As shown in FIG. 2, the first electrode 2 includes a tip 2a on the distal end side, a pin-like terminal 2b connected to the core wire of a cable (not shown), and electrically connecting the tip 2a and the pin-like terminal 2b. and a structurally connecting rod portion 2c. The housing portion 4 is provided with a screw hole 21 into which the screw 8 is inserted. The housing portion 4 is provided with an insertion opening 51 into which a cable (not shown) is inserted. The plug shown in FIG. 2 is an L-type plug because the cable (not shown) is connected in an L-shape. The cap 5 is provided with a screw hole 22 into which the screw 8 is inserted. The screws 8 are made of a conductive material.

The plug 1 also has a cable conversion pipe 7, as shown in FIG. A cable conversion pipe 7 extends along the second electrode 3 . FIG. 3 is a diagram showing one configuration example of the cable conversion pipe 7 shown in FIG. FIG. 3(a) is a side view of the cable conversion pipe 7. FIG. FIG. 3(b) is a view of the cable conversion pipe 7 as seen from the rear side. As shown in FIG. 3, the cable conversion pipe 7 is cylindrical. As shown in FIGS. 2 and 3(b), the inner diameter of the cable conversion pipe 7 is d1. As shown in FIG. 3(b), the outer diameter of the cable conversion pipe 7 is d2. The material of the cable conversion pipe 7 may be either a conductor or an insulator.

As shown in FIG. 2 , the rear end of the cable conversion pipe 7 is positioned at the end of the screw hole 21 . Therefore, as shown in FIG. 2, when the screw 8 is attached, the cable conversion pipe 7 is prevented from moving backward (in the direction of the X-axis arrow) by the screw 8 .

4 is a schematic cross-sectional view showing a state in which a cable conversion pipe is removed from the plug shown in FIG. 2. FIG. As shown in FIGS. 2 and 4, the cable conversion pipe 7 is detachable. As shown in FIG. 4, the inner diameter of the second electrode 3 is equal to the outer diameter d2 of the cable conversion pipe 7. As shown in FIG.

5 is an enlarged view of the portion surrounded by the dashed circle in the plug shown in FIG. 2. FIG. As shown in FIG. 5 , a gap 41 is provided between the insulating member 6 and the inner peripheral surface of the second electrode 3 at the rear end of the insulating member 6 . With the cable conversion pipe 7 installed in the second electrode 3 as shown in FIG. 2, the tip of the cable conversion pipe 7 is inserted into the gap 41 as shown in FIG. Therefore, the tip side of the cable conversion pipe 7 is fixed by the insulating member 6 and the inner peripheral surface of the second electrode 3, and the cable conversion pipe 7 is prevented from shaking.

Next, one structural example of the cable used for the plug 1 of Embodiment 1 will be described. FIG. 6 is an external schematic diagram showing one configuration example of the cable attached to the plug according to the first embodiment.

As shown in FIG. 6 , the cable 30 has a core wire 31 and a lead wire 33 different from the core wire 31 . The core wire 31 has a configuration in which a plurality of thin single wires are twisted together. Cable 30 is referred to as a stranded cable. The core wire 31 is covered with an insulator 32 . Conductive wires 33 are provided in a net shape around the insulator 32 . Conductive wire 33 is covered with protective coating 34 . The material of the core wire 31 and the conductor wire 33 is, for example, copper. The material of the insulator 32 is polyethylene, for example. The material of the protective coating 34 is vinyl, for example. Let dk be the diameter of the cable 30 .

When the diameter dk of the cable 30 is dk≈d2, the cable conversion pipe 7 is removed from the plug 1 shown in FIG. 2, and the cable 30 is inserted into the plug 1 shown in FIG. On the other hand, when the diameter dk of the cable 30 is dk≈d1, the cable conversion pipe 7 is attached to the plug 1 shown in FIG. 4, and the cable 30 is inserted into the plug 1 shown in FIG. In this way cables 30 of different diameters can be inserted into the plug 1 .

In the cable 30 shown in FIG. 6, the cross sections of the core wire 31, the insulator 32, the conductor wire 33 and the protective film 34 do not match in order to explain the internal structure. , and each cross section is in the same plane.

Next, a method of attaching the cable 30 to the plug 1 shown in FIG. 2 will be described for the case where the diameter dk of the cable 30 is dk≈d1. 7 to 9 are schematic diagrams showing an example of a procedure for attaching a cable to the plug shown in FIG. 2. FIG.

The user first removes the screw 8 and the cap 5 from the plug 1 shown in FIG. 2 as shown in FIG. The user inserts the cable 30 shown in FIG. 6 from the rear end of the housing portion 4 toward the front end of the chip 2a (opposite direction of the X-axis arrow). As shown in FIG. 8, the tip of the cable 30 passes through the inside of the cable conversion pipe 7 and comes into contact with the insulating member 6 and stops there. At that time, the core wire 31 contacts the pin-like terminal 2b so as to cling to it. Thereby, the core wire 31 and the first electrode 2 are electrically connected by electrically connecting the core wire 31 to the pin-like terminal 2b.

Subsequently, the user bends the cable 30 at right angles on the rear end side of the housing portion 4 so that the portion of the cable 30 protruding from the housing portion 4 extends in the opposite direction of the Z-axis arrow. Further, the user covers the housing portion 4 with the cap 5 from the rear end side of the housing portion 4 . After that, the user attaches the screw 8 to the screw hole 22 and rotates the screw 8 with a screwdriver to fasten the screw 8 to the screw holes 21 and 22 . At that time, the user pushes the screw 8 until it penetrates the protective film 34 of the cable 30 and reaches the conductor 33 . Thereby, the conductor 33 and the housing portion 4 are electrically connected via the screw 8, and the conductor 33 and the second electrode 3 are electrically connected.

9 is a schematic cross-sectional view showing a state in which the cable shown in FIG. 6 is attached to the plug shown in FIG. 2. FIG. In FIG. 9, the tip side of the cable 30 is notched to schematically show the cross-sectional structure of the cable 30 in order to make the electrical connection structure between the electrodes and the terminals easier to understand. The core wire 31 is in contact with the pin-like terminal 2b so that a plurality of twisted wires are entangled. The screw 8 penetrates the protective coating 34 and contacts the conductor 33 .

When the cable 30 is attached to the plug 1 in this manner, the side surface of the pin-shaped terminal 2b is covered with the cable conversion pipe 7 via the cable 30. As shown in FIG. Therefore, a uniform supporting force is applied to the side surface of the pin-shaped terminal 2b from the outside. As a result, the pin-shaped terminal 2b is suppressed from being subjected to a bending force, and the durability is improved.

For example, consider a case where the cable conversion pipe is attached to the rear side of the second electrode 3 but does not reach the side surface of the pin-like terminal 2b. In this case, since a gap is generated between the second electrode 3 and the protective film 34 of the cable 30 at a position corresponding to the side surface of the pin-shaped terminal 2b, the cable 30 becomes unstable around the pin-shaped terminal 2b. . Then, every time the user inserts and removes the plug from the connector of the electronic device, the cable 30 wobbles around the pin-shaped terminal 2b, and the pin-shaped terminal 2b receives bending force. As a result, the strength of the pin-shaped terminal 2b may deteriorate and the pin-shaped terminal 2b may break before the service life expires.

In the first embodiment, the plug 1 is of the L-shaped type, but the plug 1 is not limited to the L-shaped type. 10 is a schematic cross-sectional view showing another configuration example of the plug according to Embodiment 1. FIG. As shown in FIG. 10, an insertion opening 51 is provided on the rear side of the cap 5a. The plug 1 shown in FIG. 10 is a linear type plug. By selecting cap 5 or cap 5a, one plug 1 can be switched to L-shaped type or straight type.

A plug 1 according to Embodiment 1 is a plug connected to a cable 30 having a core wire 31 and a conductor wire 33, and includes a first electrode 2, a second electrode 3, a housing portion 4, and a cable converting electrode. a pipe 7; The first electrode 2 has a pin-like terminal 2 b electrically connected to the core wire 31 . The second electrode 3 has a cylindrical configuration insulated from the first electrode 2 via an insulating member 6 . The housing part 4 is connected with the second electrode 3 and a cable 30 is inserted. The cable conversion pipe 7 has a cylindrical configuration into which the cable 30 is inserted and which can be detached according to the diameter of the cable 30 . The cable conversion pipe 7 is configured to cover the side surface of the pin-shaped terminal 2 b via the cable 30 when attached to the second electrode 3 .

According to the first embodiment, since the second electrode 3 has the detachable cylindrical cable conversion pipe 7 , cables 30 with different thicknesses can be attached to the plug 1 . Therefore, it is not necessary to prepare different plugs corresponding to the thickness of the cable 30 . In addition, since the cable conversion pipe 7 attached to the second electrode 3 covers the side surface of the pin-shaped terminal 2b through the cable 30, a uniform supporting force is applied to the side surface of the pin-shaped terminal 2b from the outside. As a result, the pin-shaped terminal 2b is suppressed from being subjected to a bending force, and the durability is improved.

Embodiment 2.
The configuration of the plug according to the second embodiment will be described. In the second embodiment, the case where the cable 30 described with reference to FIG. 6 is used will be described. 11 is an external view showing a configuration example of a plug according to Embodiment 2. FIG. 12 is a schematic cross-sectional view showing one configuration example of the plug shown in FIG. 11. FIG.

The plug 1a includes a first electrode 12 electrically connected to the core wire 31 of the cable 30 shown in FIG. 6, a second electrode 13 electrically connected to the lead wire 33 of the cable 30, and a second It has a housing part 14 connected to the electrode 13 . An insulating member 16 is provided between the first electrode 12 and the second electrode 13 . Screw holes 23 a and 23 b are provided in the cylindrical housing portion 14 along the circumferential direction of the housing portion 14 . A screw 18a is fastened to the screw hole 23a. A screw 18b is fastened to the screw hole 23b. The first electrode 12, the second electrode 13 and the housing portion 14 are made of conductive metal. The material of the insulating member 16 is, for example, resin. The plug 1 shown in FIG. 11 is, for example, a plug in which the diameter of the second electrode 13 is 6.3 mm. The screws 18a and 18b are made of a conductive material.

As shown in FIG. 12, the first electrode 12 includes a tip 12a on the distal end side, a pin-like terminal 12b connected to the core wire 31 of the cable 30, and electrically and structurally connecting the tip 12a and the pin-like terminal 12b. It has a connecting rod portion 12c. The housing portion 14 has a cylindrical shape extending in the direction of the X-axis arrow. The housing portion 14 is provided with an insertion opening 53 into which the cable 30 is inserted. The plug 1a shown in FIGS. 11 and 12 is a straight type plug because the cable 30 is connected in a straight line.

The housing portion 14 is cylindrical as described with reference to FIG. The cable conversion pipe 17 has a shape in which a part of the cylindrical member is missing. As shown in FIG. 12, the inner diameter of the cable conversion pipe 7 is d3. Regarding the plug 1a shown in FIGS. 11 and 12, the side opposite to the X-axis arrow is called the front end side, and the X-axis arrow side is called the rear end side. In the interior of the housing portion 14 shown in FIG. 12, the end opposite to the insertion opening 53 is referred to as the front end, and the insertion opening 53 is referred to as the rear end. In addition, regarding the cable conversion pipe 17, the end in the direction opposite to the X-axis arrow is called the front end, and the end in the direction of the X-axis arrow is called the rear end.

13 is a rear view of the plug shown in FIG. 11. FIG. As shown in FIG. 13, V-shaped screws 18a and 18b are fastened to the housing portion 14. As shown in FIG. The cable conversion pipe 17 seen from the rear of the plug 1a shown in FIG. 11 has a half circumference shape so as not to come into contact with the screws 18a and 18b.

14 is a schematic cross-sectional view showing a state in which the cable conversion pipe is removed from the plug shown in FIG. 12. FIG. As shown in FIGS. 12 and 14, the cable conversion pipe 17 is detachable. As shown in FIG. 14, the diameter inside the housing portion 14 is d4. The diameter d4 has a length equivalent to the outer diameter of the cable conversion pipe 17 shown in FIG.

FIG. 15 is a diagram showing one configuration example of the cable conversion pipe shown in FIG. FIG. 15(a) is an external perspective view of the cable conversion pipe 17, and FIG. 15(b) is a rear view of the cable conversion pipe 17. As shown in FIG. The cable conversion pipe 17 has a cylindrical portion 60 , an opening portion 42 for screwing, and a saucer portion 62 .

11, 12 and 15, cylindrical portion 60 extends from the tip inside housing portion 14 to the ends of screw holes 23a and 23b. The receiving plate portion 62 is configured to support a cable (not shown) inserted into the cable conversion pipe 17 from the end portion of the cylindrical portion 60 to the insertion port 53 . The screw fastening opening 42 has a shape in which the insertion opening 53 is missing from positions corresponding to the screw holes 23a and 23b in the cylindrical member.

As shown in FIG. 15(b), when the cable conversion pipe 17 is viewed from the insertion port 53 side shown in FIG.

16 is a diagram showing another configuration example of the cable conversion pipe shown in FIG. 12. FIG. FIG. 16(a) is an external perspective view of the cable conversion pipe 17a, and FIG. 16(b) is a rear view of the cable conversion pipe 17a. The cable conversion pipe 17 a has a cylindrical portion 60 , an auxiliary portion 61 , screw fastening openings 43 a and 43 b , and a saucer portion 63 .

11, 12 and 16, the cylindrical portion 60 extends from the tip inside the housing portion 14 to the ends of the screw holes 23a and 23b. The receiving plate portion 63 is configured to support a cable (not shown) inserted into the cable conversion pipe 17a from the end portion of the cylindrical portion 60 to the insertion opening 53 . The screw fastening opening 43a has a shape in which the insertion opening 53 is cut off from the position corresponding to the screw hole 23a in the cylindrical member. The screw fastening opening 43b has a shape in which the insertion opening 53 is missing from the position corresponding to the screw hole 23b in the cylindrical member. The auxiliary portion 61 is formed at a position sandwiched between the screw-fastening opening portion 43a and the screw-fastening opening portion 43b. not shown). A central angle θ1 shown in FIG. 16 is an angle formed by the center of the circle of the cylindrical member and both ends of the arc on the circumference including the screw holes 23a and 23b. The central angle θ1 is determined by the positions and sizes of the screw holes 23a and 23b shown in FIG. 11, and is, for example, 120°.

Here, comparing FIGS. 15 and 16, the cable conversion pipes 17 and 17a are both used when there are two screws. In the case of the cable conversion pipe 17a shown in FIG. 16, after the cable 30 is attached to the plug 1, the auxiliary portion 61 increases the supporting force of the cable 30. As shown in FIG. On the other hand, when the user inserts the cable 30 into the cable conversion pipe 17 a along the tray portion 63 , the upper end of the cable 30 may get caught on the auxiliary portion 61 . Therefore, the user needs to insert the cable 30 carefully so that the cable 30 does not get caught on the auxiliary section 61 .

On the other hand, in the case of the cable conversion pipe 17 shown in FIG. 15, the auxiliary portion 61 shown in FIG. 16 is not provided. can be inserted smoothly. In this way, the user can select a cable conversion pipe considering the advantages of each of the cable conversion pipes 17 and 17a.

Also, in the second embodiment, the case where the number of screws is two has been described, but the number of screws may be one. 17 is a diagram showing another configuration example of the cable conversion pipe shown in FIG. 12. FIG. FIG. 17(a) is an external perspective view of the cable conversion pipe 17b, and FIG. 17(b) is a rear view of the cable conversion pipe 17b. The cable conversion pipe 17b is a cable conversion pipe used when one screw is used. The cable conversion pipe 17 b has a cylindrical portion 60 , a screw fastening opening portion 44 and a receiving plate portion 64 .

11, 12 and 17, cylindrical portion 60 extends from the tip inside housing portion 14 to the end of a screw hole (not shown). The receiving plate portion 64 is configured to support a cable (not shown) inserted into the cable conversion pipe 17b from the end portion of the cylindrical portion 60 to the insertion opening 53 . The screw fastening opening 44 has a shape missing from a position corresponding to the screw hole (not shown) to the insertion opening 53 in the cylindrical member. A central angle θ2 shown in FIG. 17 is an angle formed by the center of the circle of the cylindrical member and both ends of the arc on the circumference including the screw holes (not shown). The central angle θ2 is determined by the position and size of screw holes (not shown) provided in the housing portion 14 shown in FIG. 11, and is, for example, 60°.

When the diameter dk of the cable 30 is dk≈d4, the cable conversion pipe 77 is removed from the plug 1a shown in FIG. 12, and the cable 30 is inserted into the plug 1a shown in FIG. On the other hand, when the diameter dk of the cable 30 is dk≈d3, the cable conversion pipe 17 is attached to the plug 1a shown in FIG. 14, and the cable 30 is inserted into the plug 1a shown in FIG. In this way cables 30 of different diameters can be inserted into the plug 1a.

Although the plug 1a is of the linear type has been described in the second embodiment, the plug 1a is not limited to the linear type. 18 is an external view showing another configuration example of the plug according to Embodiment 2. FIG. 19 is a schematic cross-sectional view showing the configuration of the plug shown in FIG. 18. FIG.

The plug 1b shown in FIGS. 18 and 19 is an L-shaped type plug. As shown in FIG. 19, even if the plug 1b is of the L-shaped type, the cable conversion pipe 17 mounted inside the housing portion 14 is arranged along the longitudinal direction of the housing portion 14. As shown in FIG. The plug 1b has the same effect as the plug 1a.

Plugs 1a and 1b of Embodiment 2 are plugs connected to cable 30 having core wire 31 and conducting wire 33, and include first electrode 12, second electrode 13, housing portion 14, and cable 30. and a conversion pipe 17 . The first electrode 12 has a pin-like terminal 12 b electrically connected to the core wire 31 . The second electrode 13 has a cylindrical configuration insulated from the first electrode 12 via an insulating member 16 . The housing part 14 is connected with the second electrode 13 and the cable 30 is inserted. The cable conversion pipe 17 has a cylindrical configuration into which the cable 30 is inserted and which can be detached according to the diameter of the cable 30 . The cable conversion pipe 17 is configured to cover the side surface of the pin-like terminal 12b via the cable 30 when attached to the housing portion 14. As shown in FIG.

According to the second embodiment, since the housing portion 14 has the cylindrical cable conversion pipe 17 that can be attached and detached, the cables 30 having different thicknesses can be connected to the plugs 1a and 1b as in the first embodiment. can be worn on Therefore, it is not necessary to prepare different plugs corresponding to the thickness of the cable 30 . Also in the second embodiment, as in the first embodiment, the cable conversion pipe 17 attached to the second electrode 13 covers the side surface of the pin-like terminal 12b via the cable 30. FIG. Therefore, a uniform supporting force is applied to the side surface of the pin-shaped terminal 12b from the outside. As a result, the pin-shaped terminal 12b is restrained from being subjected to a bending force, thereby improving durability.

In the first and second embodiments described above, the case of the solderless plug has been described, but the present invention may be applied to plugs other than the solderless plug.

Reference Signs List 1, 1a, 1b plug 2 first electrode 2a chip 2b pin terminal 2c rod portion 3 second electrode 4 housing portion 5, 5a cap 6 insulating member 7 cable conversion pipe, 8 screw 12 first electrode 12a tip 12b pin terminal 12c rod portion 13 second electrode 14 housing portion 16 insulating member 17, 17a, 17b cable conversion pipe 18a, 18b screw, 21, 22, 23a, 23b screw hole, 30 cable, 31 core wire, 32 insulator, 33 conducting wire, 34 protective film, 41 gap, 42, 43a, 43b, 44 opening for screwing, 51, 53 insertion port, 60 cylinder part, 61 auxiliary part, 62-64 saucer part.

Claims (7)

A plug to be connected to a cable having a core wire and a conductor different from the core wire,
a first electrode having a pin-shaped terminal electrically connected to the core wire;
a cylindrical second electrode insulated from the first electrode via an insulating member;
a housing portion connected to the second electrode and into which the cable is inserted;
a cylindrical cable conversion pipe into which the cable is inserted and detachable according to the diameter of the cable;
The cable conversion pipe is configured to cover the side surface of the pin-shaped terminal via the cable in the attached state.
plug. The pin-shaped terminal is arranged in the second electrode,
The state in which the cable conversion pipe is attached is a state in which the cable conversion pipe is attached in the second electrode, and
The cable conversion pipe mounted in the second electrode is configured to extend along the second electrode,
A plug according to claim 1. the housing portion is provided with a screw hole into which a screw for electrically connecting the conducting wire and the housing portion is inserted;
The cable conversion pipe mounted in the second electrode is configured such that the rear end of the cable conversion pipe, which is on the housing portion side, is positioned at the end of the screw hole.
3. A plug according to claim 2. A gap is provided between the insulating member and the inner peripheral surface of the second electrode at the rear end of the insulating member on the housing portion side,
The cable conversion pipe mounted in the second electrode has a configuration in which a tip of the cable conversion pipe in a direction opposite to the housing portion side is inserted into the gap.
4. A plug according to claim 2 or 3. The pin-shaped terminal is arranged in the housing portion,
The state in which the cable conversion pipe is mounted is a state in which the cable conversion pipe is mounted in the housing,
The cable conversion pipe mounted in the housing portion is configured to extend along the housing portion,
A plug according to claim 1. The housing portion is provided with a screw hole into which a screw for electrically connecting the conductor and the housing portion is inserted, and an insertion opening into which the cable is inserted,
The cable conversion pipe has a shape in which a part of the cylindrical member is missing,
The cable conversion pipe mounted in the housing part is
a cylindrical portion extending from a tip opposite to the insertion opening in the housing portion to an end of the screw hole;
a saucer portion that supports the cable from the end of the cylindrical portion to the insertion opening;
an opening for screwing, which is a portion missing from a position corresponding to the screw hole to the insertion opening in the cylindrical member;
A plug according to claim 5. Two screw holes are provided in the housing portion,
When the cable conversion pipe mounted in the housing portion is viewed from the insertion port side, the saucer portion has a shape in which half of the circumference of the cylindrical member is missing.
7. Plug according to claim 6.

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