JP2002216865A - Plug and receptacle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plug and a receptacle which can remarkably shorten the time required for connecting a plug to a receptacle, and keep the working site clean. SOLUTION: The plug 2 has a plurality of tap blades 4 at one side, and a connection part electrically connected to the end part of a cable a the other side, and the cable has a plurality of covered electric wires 38, and the top end of connection pins 6 are pointed, and respective end part of the connection pins 6 are arranged approximately parallel with each other with a prescribed distance, and a plug-in supporting part 14 has one or a plurality of separation members made of separation walls and a bottom board fixed to a base end part of the separation members. The separation members are radially arranged so as to have approximately equal angles between them, and holes, into which connection pins penetrates, are formed to the bottom board, where, one hole of the bottom board is formed to every space between separation walls, and when the plug-in supporting part 14 is inserted into the cable, the holes are located on the extended line of the end part of the electric wire in the covered cable. Further, the receptacle replaces the tap blades by tap blade receiving metal fittings, while another conditions are unchanged.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power plug and an outlet which can be used at a construction site and other work sites.

[0002]

2. Description of the Related Art Power plugs and outlets used at construction sites and other work sites require connection with cables. In this connection operation, first, a predetermined amount of the sheath of the cable is cut from the end portion, and each covered electric wire in the cable is exposed. Next, an insulating cap is inserted into each of the coated electric wires, and a predetermined amount of the insulator of each of the coated electric wires is cut off from the end to expose each of the conductive wires. Next, a crimp terminal is crimped to the conductive wire, and the crimped portion is covered with an insulating cap. Then, the crimp terminal is connected to the power plug and each terminal portion of the outlet.

[0003]

However, since the operation of connecting the cable to the power plug and the outlet is performed manually, mass production is not possible. Further, since a normal cable has a plurality of covered electric wires, there is a problem that it takes a considerable time to expose the conductive wire from within one cable.

[0004] For example, a cable called one or two types is relatively easy to work because it is only necessary to cut off the insulator of the sheath and the covered electric wire, but it still takes time. Further, the three types of cables are provided with a reinforced canvas in a sheath in order to improve shock resistance, abrasion resistance and trauma resistance. In this cable, the reinforced canvas is very strong and hard to cut, making it difficult to work. Also, the sheath material is made of natural rubber or ethylene propylene,
There is a wide variety of cables, and there is a problem that the work of cutting the sheath or the insulator takes a very long time for all the cables.

[0005] In addition, there is a danger that the exposed conductive wire may short-circuit when it comes into contact with another conductive wire.
It is necessary to perform the connecting operation while paying attention so that the conductive wire is completely connected to the terminal portion, and the connecting operation takes a very long time.

Further, since the sheath and the insulator of the cable are scraped, debris is generated at the work site, and the work site becomes dirty. In addition, if the cable provided with the reinforced canvas is cut, debris of the cloth is generated in addition to the seeds and the insulator. Further, a cable in which conductive wires in a covered electric wire are bundled with thin paper generates paper dust. If these fine debris gets into wiring or circuits, there is a risk of causing unexpected accidents such as short circuits.Therefore, it is necessary to keep the work site clean by always removing debris that occurs. Did not.

In addition, in the conventional connecting operation, if the sheath and the insulator of the cable are attached or detached, the insulator is broken. Also, in order to connect the cable with the power plug and the outlet, for example, a crimp terminal, an insulated terminal cap, a crimper, solder, a soldering tool, an insulating tube,
Since it is necessary to prepare various tools such as a driver and an insulating tape, it is very difficult.

As described above, the conventional power plugs and outlets have various problems. In particular, the work time required for connecting the power plugs and outlets to the cables can be reduced, and the cleanliness of the work site can be reduced. The development of power plugs and outlets that can be secured has been eagerly desired.

[0009]

A power plug according to the present invention has a plurality of blades on one side and is electrically connected to an end of a cable on the other side. A power plug having a connection portion, wherein the cable has a plurality of insulated wires, and the connection portion connects and holds the plurality of connection pins to be inserted into ends of each of the insulated wires of the cable and the plurality of connection pins. An insulative gripper to be inserted, a plug-in aid inserted between conductive wires in a covered wire of the cable, and a mounting bracket attached to an outer periphery of an end of the cable into which the connection pin is inserted. And each is electrically connected,
Each end of the connection pin is pointed, each end of the connection pin protrudes from the gripping part, each end of the plurality of connection pins is disposed substantially parallel at a predetermined interval, and the insertion aid is A partition member comprising one or a plurality of partition plates and a bottom plate fixed to a base end of the partition member, the partition plates are radially arranged at substantially equal angles, and a hole through which a connection pin penetrates is formed in the bottom plate. ,
The hole of the bottom plate is formed one by one between the partition plates, and is located on an extension of the end of the conductive wire in the covered electric wire when the insertion aid is inserted into the cable.

[0010] Further, a guard piece is provided on a partition plate of the insertion aid.

[0011] Further, the connection pin and the blade are formed integrally with the grip portion.

Further, the connecting pin and the blade are separated from the gripping part.

Further, the outlet according to the present invention has a plurality of blade receiving brackets for inserting and holding the respective blades of the power plug on one side, and is electrically connected to the end of the cable on the other side. The cable has a plurality of covered wires, and the connection portion connects and holds the plurality of connection pins to be inserted into ends of each covered wire of the cable and the plurality of connection pins. It has an insulating gripping part, a plug-in aid inserted between conductive wires in the sheathed wire of the cable, and a mounting bracket attached to the outer periphery of the end of the cable into which the connecting pin has been inserted. Each of the connection pins is electrically connected to each other, each end of the connection pin is pointed, each end of the connection pin protrudes from the grip portion, and each end of the plurality of connection pins is substantially spaced at a predetermined interval. They are arranged in parallel and one or more A partition member made of a partition plate and a bottom plate fixed to the base end of the partition member, the partition plates are radially arranged at substantially equal angles, and a hole through which a connection pin is formed is formed in the bottom plate. Holes are formed one by one between the partitions,
And it is characterized by being on the extension of the end of the conductive wire in the covered electric wire when the insertion auxiliary device is inserted into the cable.

Further, a guard piece is provided on a partition plate of the insertion aid.

[0015] Further, the connection pin and the blade receiving member are formed integrally with the holding portion.

The connection pin and the blade receiving member can be separated from the holding portion.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Before describing the power plug 2 and the outlet 30 according to the present invention, a brief description will be given of a cable 34 that can be used by the power plug 2 and the outlet 30 according to the present invention. This cable 34
Is a thin wire-shaped cabtire cable 34 (specifically, VCS) specified by the Japan Electric Wire & Cable Association Standard (JCS).
CT, soft VCT, 1CT, 2CT, 3CT, 2RN
CT, 2PNCT, 3NPCT, etc.). In addition, other than the above, the power plug 2 according to the present invention is also provided.
Any cable 34 suitable for the outlet 30 can be used.

Next, the power plug 2 and the outlet 30 according to the present invention will be described with reference to the drawings. Figure 1
FIG. 1 is a perspective view showing a power plug 2 according to the present invention.
FIG. 2 is a partial cross-sectional view taken along the line AA of the power plug 2 according to the present invention. Note that these drawings do not limit the present invention.

The power plug 2 according to the present invention comprises at least a blade 4 and a connecting portion.
It is characterized by comprising the grip portion 8, the insertion aid 14, and the mounting bracket 26.

The blade 4 of the power plug 2 according to the present invention may have a plate shape as shown in the figure. The present invention is not limited to this, and may be appropriately set in consideration of various conditions, such as a columnar shape or a prismatic shape. The tip of the blade 4 may be chamfered as shown in the figure.

A connection pin 6 is formed at the other end of the plug blade 4. The connection pins 6 will be described later in detail. The blade 4 and the connecting pin 6 may be formed integrally or may be separated. If it can be separated, a projection for connection may be formed at the end of the blade 4, or a connection member or the like may be provided.

Further, as the metal forming the blade 4, the metal used for the blade 4 of the power plug 2 which is generally used can be used. In addition, it may be appropriately set in consideration of various other conditions.

Next, the connection pin 6 according to the present invention has a columnar shape as shown in the figure. The present invention is not limited to this, and may be a prismatic shape or the like, and may be set as appropriate. The tip of the connection pin 6 may have a pointed shape. A plurality of grooves may be formed at the tip of the connection pin 6. Instead of a rod shape as shown in the figure, a plurality of branches such as a bifurcated or trifurcated shape may be used.

The connecting pin 6 is formed integrally with the blade 4 as described above. In addition, if they are electrically connected, they may be separated. When the blade 4 and the connection pin 6 can be separated, a projection may be provided at an end of the connection pin 6 and connected to the protrusion of the blade 4 described above, or may be connected using a connection member. . The plug blade 4 and the connecting pin 6
As shown in FIG. 1, the number may be appropriately set according to the conditions, instead of four.

The connection pins 6 are arranged at the same positions as through holes 22 formed in the bottom plate 18 of the insertion aid 14 described later, and are arranged in parallel with each other. .

The length of the connection pin 6 may be such that it protrudes from the lower end of the rubber body covering the outer periphery, or may be such that it does not protrude from the lower end of the rubber body. Is also good. As shown in FIG.
If the length is such that it does not protrude from the lower end of the rubber trunk,
There is no need to worry about the connection pins 6 being bent during transportation.

Next, the shape of the grip portion 8 according to the present invention may be cylindrical or prismatic. Further, the grip portion 8 is formed of an insulating material, and is characterized in that it covers the above-mentioned blade 4 and connection pin 6 so as to be connected and held. The insulating material is not particularly limited, and may be appropriately set in consideration of various conditions. Further, the outer periphery of the grip portion 8 may be covered with rubber or the like.

Next, FIG. 4 shows an insertion aid 14 according to the present invention.
FIG. Plug-in aid 14 according to the present invention
Consists of a partition member composed of one or a plurality of partition plates 16 and a bottom plate 18 fixed to the base end of the partition member. The material of the insertion aid 14 may be appropriately set in consideration of various conditions.

As shown in FIG. 4, the insertion aid 14 is
Partition plates 16 extending radially from the center are disposed at substantially equal angles. The partition plate 16 is fixed at the center, and the tip of the center may be raised so that it can be easily inserted into the cable 34. As shown in FIG. 2, the length of the partition plate 16 is preferably such that the tip of the connection pin 6 inserted into the cable 34 does not protrude from the partition plate 16.

The partition plate 16 is provided with guard pieces 20. The guard piece 20 may be set at any position of the partition plate 16, and may be set at a fixed portion between the partition plate 16 and the bottom plate 18, for example, as shown in the drawing. The guard piece 20 can securely fix the covered electric wire 38 fixed between the partition plates 16 and also can surely separate adjacent covered electric wires 38. Also,
If the guard piece 20 is installed at the fixed portion between the partition plate 16 and the bottom plate 18, the end of the cable 34 can be accommodated in the guard piece 20, so that the contact between the other conductive wires 40 can be completely prevented. .

The bottom plate 18 of the insertion aid 14 has a through hole 22 through which the connection pin 6 can pass. As shown in FIG. 4, this through hole 22 is provided in each partition plate 16.
It is formed one by one in between, and is formed on an extension of the end of the covered electric wire 38 when the insertion aid 14 is inserted into the cable 34. The bottom plate 18 may have a convex fitting portion 24 formed thereon.

When the insertion aid 14 is inserted into the cable 34, each of the coated electric wires 38 is separated by the partition plate 16. When the insertion aid 14 is further inserted, the
Is fixed by a guard piece 20 formed on the partition plate 16, and the end of each covered electric wire 38 reaches the bottom plate 18. At this time, the end of the covered electric wire 38 is fixed at the same position as the through hole 22 formed in the bottom plate 18. Therefore, when the connection pin 6 is passed through the through hole 22 of the bottom plate 18, each of the coated electric wires 3 is automatically
The connection pins 6 can be inserted into the connection pins 8.

The general cable 34 is a covered electric wire 3
8 is stored while making a gentle turn. If the connection pin 6 is directly inserted without using the insertion aid 14 in this state, the connection pin 6 may penetrate the covered electric wire 38. However, since the insertion auxiliary tool 14 fixes the respective insulated wires 38 straight, there is no fear that the connection pins 6 will penetrate even if inserted into the insulated wires 38. Even if the coated electric wires 38 pass through the coated electric wires 38, the coated electric wires 38 are separated by the partition plate 16, and the connection pins 6
There is no need to worry about short-circuiting in the cable 34 because it fits in between.

Further, the connection pin 6 and the through hole 22 of the insertion aid 14 according to the present invention, the guard piece 20, and the partition plate 16 may be formed by turning similarly to the covered electric wire 38 in the cable 34. Thereby, there is an advantage that not only the connection pin 6 and the insertion auxiliary tool 14 according to the present invention can be easily inserted into the covered electric wire 38, but also it is not easily detached.

Further, even if the outer periphery of the cable 34 is tightened to the outer periphery of the cable 34 at the portion where the connection pin 6 is inserted by using the mounting bracket 26 or if another external pressure is applied, the connection pin 6 will Since it is settled between the partition plates 16, the pressure is transmitted to the partition plate 16, and the deformation of the connection pins 6 can be prevented.

Next, the mounting bracket 26 according to the present invention tightens the outer periphery of the end of the cable 34 into which the connection pin 6 is inserted. The mounting bracket 26 may have any shape as long as it can be tightened to such a degree that the connection pin 6 inserted into the cable 34 does not easily come off.

By using the mounting bracket 26, not only can the cable 34 and the power plug 2 be firmly connected,
To apply pressure from the outer periphery of the cable 34, the cable 3
In 4, the contact between the connection pin 6 and the conductive wire 40 becomes good.

In the power plug 2 according to the present invention, the above-mentioned components may be integrally formed, or may be separable. For example, as shown in FIG. 3, it is also possible to assemble various components to form the power plug 2. This figure does not limit the present invention.

The power plug 2 which can be separated and assembled is
It is characterized by comprising a blade 4, a connecting pin 6, a grip portion 8, a fixing aid 10, an insertion aid 14, a rubber body 28, a cable 34 aid, and a fitting 26. In addition, other components may be used.

The blade 4 and the connecting pin 6 may be integrally formed as described above, or may be separable. When the blade 4 and the connection pin 6 can be separated and connected, if an insulating tube or the like is provided at the connection portion as shown in the drawing, there is no fear of short-circuit or electric leakage.

Further, in addition to the hole through which the blade 4 penetrates, a screw hole for connecting to the rubber body 28 may be formed in the grip portion 8. Further, a screw hole for connecting to the fixing aid 10 may be formed on one side surface.

Further, the fixing auxiliary tool 10 may be formed with a hole through which the connection pin 6 passes and a screw hole for connecting with the holding portion 8. Further, a recess may be formed to be fitted with the screw hole provided in the rubber body 28.

As shown in the drawing, a deep bottom tray 1 for the insertion auxiliary tool 14 is provided on one surface side of the fixing auxiliary tool 10.
2a is provided. A concave projection for fitting with the convex fitting portion 24 of the insertion aid 14 may be formed on the deep bottom tray 12a. By providing the convex fitting portion 24, the insertion aid 14 can be fixed.

On the other side of the fixing aid 10, a shallow pan 12b is provided. This shallow saucer 12
b, when the gripping portion 8 and the fixing auxiliary tool 10 are connected, the connecting portion between the connection pin 6 and the blade 4 fits in the shallow pan 12b, so that the blade 4 can be fixed.

The rubber body 28 has a shape capable of fixing the grip 8 and the fixing aid 10 described above.
Further, a screw hole for connecting to the grip portion 8 is provided inside the rubber body 28. Since the screw hole can be fitted into the recess of the fixing aid 10 described above, the fixing aid 10 can be fixed.

The outline of the power plug 2 according to the present invention has been described above. However, the various conditions described above can be changed without departing from the spirit of the present invention.

Next, the outlet 30 according to the present invention will be described with reference to the drawings. FIG. 5 is a perspective view showing the outlet 30 according to the present invention. Also, FIG.
FIG. 2 is a partial sectional view of the outlet 30 according to the present invention. These figures do not limit the invention.

The outlet 30 according to the present invention includes at least a blade receiving bracket 32 and a connecting portion, and the connecting portion includes the connecting pin 6, the grip portion 8, the insertion auxiliary device 14, and the mounting bracket 26.
Consists of

The blade receiving bracket 32 according to the present invention is not limited to the shape shown in the figure, but may have any shape, and may be set as appropriate according to the blade 4 to be used. The other end of the blade receiving bracket 32 is connected to the connecting pin 6.
Are formed. The connection pins 6 are the same as those described above, and will not be described. The blade receiving bracket 32 and the connection pin 6 may be formed integrally or may be separated. If it can be separated, a projection for connection may be formed at the end of the blade receiving bracket 32, or a connection member or the like may be provided.

Further, as the metal forming the blade receiving member 32, the metal used for the blade receiving member 32 of the outlet 30 which is generally used can be used.
In addition, it may be appropriately set in consideration of various other conditions.

The components other than the blade receiving bracket 32 are the same as those of the power plug 2 described above, and will not be described.

The outlet 30 according to the present invention may be formed integrally or may be separable. FIG. 7 is an explanatory diagram showing one embodiment of the outlet 30 according to the present invention. This diagram does not limit the invention.

The outlet 30 that can be separated and assembled
Are a plug blade receiving member 32, a connecting pin 6, a grip portion 8, a fixing auxiliary device 10, an insertion auxiliary device 14, a rubber body 28, and a cable 34.
It is characterized by comprising an auxiliary tool and a mounting bracket 26. In addition, other components may be used.

In the outlet 30 which can be separated and assembled, the components other than the blade receiving bracket 32 are the same as those of the power plug 2 which can be assembled, and their description is omitted.

The above is the outline of the outlet 30 according to the present invention. However, like the power plug 2, the above-described various conditions and the like can be changed without departing from the spirit of the present invention.

Next, an outline of the work of connecting the power plug 2 or the outlet 30 and the cable 34 according to the present invention will be briefly described. First, the cable 34 to be connected
Is cut at a right angle to the side of the cable 34, and the insertion aid 14 is inserted into this end. The insertion aid 14 is inserted until the bottom plate 18 reaches the end of the cable 34. Next, when the connection pins 6 are passed through the through holes 22 of the bottom plate 18 and are inserted at right angles to the connection pins 6 and the bottom plate 18, the connection pins 6 are automatically inserted into the respective insulated wires 38. After inserting the connection pin 6, the power plug 2 or the outlet 30 and the cable 34 can be connected only by attaching the mounting bracket 26.

When connecting to the cable 34 with the power plug 2 or the outlet 30 that can be separated and assembled, first, the connection pin 6 is passed through the hole from the upper receiving side of the fixing aid 10. Next, the blade 4 is passed through the hole of the grip portion 8, and the fixing aid 10 and the grip portion 8 are connected with a screw. Next, the fixing auxiliary tool 10 and the gripping part 8 are put into the rubber body 28 from the connection pin 6 side, and the gripping part 8 and the rubber body 28 are fixed with screws, whereby the assembly of the power plug 2 or the outlet 30 is completed. After that, it is connected to the cable 34 in the same manner as the above-mentioned usage.

[0058]

According to the power plug and outlet of the present invention, since the connecting pins are inserted into and connected to the insulated wires of the cable, there is no need to slip the sheath of the cable and the insulator of the insulated wires as in the prior art. The time can be significantly reduced.

Further, since it is not necessary to slip the sheath of the cable and the insulator of the covered electric wire, no debris is generated when slipping, and the work site can be kept clean.

Further, since the power plug and the outlet according to the present invention use a plug-in aid provided with a partition plate for connection with the cable, the power plug is simply inserted into the through-hole formed in the bottom plate. And can be connected to an outlet.

Also, since this plug-in aid can separate and fix each covered electric wire in the cable between the partition plates, there is a possibility that the conductive wire on the cut surface of the cable comes into contact with another conductive wire. There is no need to worry about shorts,
Safety can be maintained.

In the insertion aid according to the present invention, since the partition plate is provided with the guard piece, the insulated wire particularly near the cable cut surface where other conductive wires are likely to come into contact with each other is completely separated. Because it can be fixed, there is no longer a risk of short-circuit, and safety can be maintained.

Further, in the power plug and the outlet according to the present invention, since the insulated wires and the connection pins are accommodated and fixed between the partition plates, the pressure is applied to the connection pins by the partition plates even if the power supply plug and the outlet are tightened by the mounting bracket. Therefore, the deformation of the connection pin can be prevented.

[Brief description of the drawings]

FIG. 1 is a perspective view of a power plug according to the present invention.

FIG. 2 is a partial cross-sectional view of a power plug according to the present invention.

FIG. 3 is an explanatory view showing one embodiment of a power plug according to the present invention.

FIG. 4 is an explanatory view showing an insertion aid according to the present invention.

FIG. 5 is a perspective view of an outlet according to the present invention.

FIG. 6 is a partial sectional view of the outlet according to the present invention.

FIG. 7 is an explanatory view showing an embodiment of the outlet according to the present invention.

[Explanation of symbols]

 Reference Signs List 2 power plug 4 plug blade 6 connection pin 8 gripping part 10 fixing aid 12a deep bottom tray 12b shallow bottom tray 14 insertion aid 16 partition plate 18 bottom plate 20 guard piece 22 through hole 24 fitting part 26 fitting metal fitting 28 rubber body DESCRIPTION OF SYMBOLS 30 Outlet 32 Plug blade holder 34 Cable 36 Sheath 38 Insulated wire 40 Conductive wire 42 Cable auxiliary tool

Continuation of the front page (72) Inventor Chen Kaigi 8-6-12 Nishigotanda, Shinagawa-ku, Tokyo 5th Kanto-so 208 F-term (reference) 5E012 AA26

Claims (8)

[Claims] 1. A power plug having a plurality of blades on one side and a connection portion electrically connected to an end of a cable on the other side, wherein the cable includes a plurality of covered electric wires. Having a plurality of connection pins to be inserted into the ends of the respective insulated wires of the cable, an insulating gripping portion for connecting and holding the plurality of connection pins, and an inside of the insulated wire of the cable. An insertion auxiliary tool inserted between conductive wires, and a mounting bracket attached to an outer periphery of an end of the cable into which the connection pin is inserted, the connection pin being electrically connected to the plug blade, respectively. Each end of the connection pin is pointed, each end of the connection pin protrudes from the grip, and each end of the plurality of connection pins is disposed substantially in parallel at a predetermined interval, and The auxiliary aid includes a partition member comprising one or more partition plates and the partition member. A bottom plate fixed to the base end of the partition member, the partition plates are radially arranged at substantially equal angles,
A hole through which the connection pin penetrates is formed in the bottom plate, holes in the bottom plate are formed one by one between the partition plates, and the inside of the covered electric wire when the insertion auxiliary device is inserted into the cable. A power plug characterized by being on an extension of an end of a conductive wire. 2. The power plug according to claim 1, wherein a guard piece is provided on the partition plate of the insertion aid. 3. The power plug according to claim 1, wherein the connection pin and the blade are formed integrally with the grip. 4. The power plug according to claim 1, wherein the connection pin and the blade are separable from the grip. 5. An outlet having a plurality of blade receiving members for inserting and holding respective blades of a power plug on one side, and having a connection portion electrically connected to an end of a cable on the other side. The cable has a plurality of insulated wires, and the connecting portion has a plurality of connection pins inserted into ends of the respective insulated wires of the cable, and an insulating property for connecting and holding the plurality of connection pins. A grip, a plug-in aid inserted between conductive wires in a covered wire of the cable, and a mounting bracket attached to an outer periphery of an end of the cable into which the connection pin is inserted, wherein the connection pin is provided with the plug Each of the connection pins is electrically connected to the blade receiving member, each end of the connection pin is pointed, each end of the connection pin projects from the grip portion, and each end of the plurality of connection pins is It is arranged substantially in parallel at a predetermined interval, and The assisting tool includes a partition member made of one or more partition plates and a bottom plate fixed to a base end of the partition member. The partition plates are radially arranged at substantially equal angles, and the connection is made to the bottom plate. Holes through which pins penetrate are formed, holes in the bottom plate are formed one by one between the partition plates, and the ends of the conductive wires in the covered electric wire when the insertion auxiliary device is inserted into the cable. An outlet characterized by being on an extension line. 6. The outlet according to claim 5, wherein a guard piece is provided on the partition plate of the insertion aid. 7. The outlet according to claim 5, wherein the connection pin and the blade receiving member are formed integrally with the holding portion. 8. The outlet according to claim 5, wherein the connection pin and the blade receiving member are separable from the holding portion.