JPS6330742B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electrical outlet with a door, and its purpose is to prevent one side of the door body from opening when a pin or other object is inserted into one of the plug sockets. etc. cannot be inserted,
The purpose of the present invention is to provide a highly safe outlet with a door, which improves the reliability of door functions such as preventing electric shock by increasing the effect of preventing the insertion of foreign objects other than plugs.

In a conventional electrical outlet with a door, a pair of door bodies each having an inclined upper surface are provided below the inside of a pair of plug blade openings provided in the cover, and a coil-shaped spring is inserted between the two door bodies. Both door bodies were attached to the upper surface of the holding plate so that they could move independently from side to side. In this case, there is a pin on one side of the blade opening.
When a foreign object such as a clip is inserted, since each door body moves independently, the pin, clip, etc. can be inserted into the blade spring disposed inside the body, creating a risk of electric shock. In addition, there is a door described in Utility Model Publication No. 48-17999 that has a double door body, but in this case, the holding plate (insulating plate) on which the door body is placed is a thin plate. Therefore, during long-term use, the presser plate tends to deform, warp, and become uneven, which hinders smooth operation of the door body (sliding lid).

In addition, since both conventional examples use coiled springs to close the plug blade openings, it is necessary to give preliminary deflection to the coil springs during assembly, which makes it difficult to pass through the door body. The problem was that it easily exploded and was extremely difficult to assemble.

The present invention has been made in view of this point, and will be explained in detail below with reference to Examples.

In FIG. 1, reference numeral 1 denotes a cover which is covered with a body 10 having an open upper surface and a blade receiving spring 11 provided inside. A blade opening 3 is provided, and a first blade opening 2 is provided.
A first door body 5 having an inclined surface 4 is provided below, and a second door body 7 having an inclined surface 6 is provided below the second blade opening 3. are mounted on the holding plate 9 so as to be movable in the left-right direction, and are pressed in opposite directions by the spring body 12 to form the inclined surfaces 4 and 6.
to close the first blade opening 2 and the second blade opening 3.
As shown in FIG. 1, the holding plate 9 is thick and has a substantially E-shaped cross section. A leaf spring-like spring body 12 is disposed on both ends of the holding plate 9.
A first, which is movably provided on the upper surface of the
The second door bodies 5 and 7 are brought into elastic contact with this spring body 12. A tongue piece 13 is extended to the first door body 5 as shown in FIG. 2, a tongue piece 14 is extended to the second door body 7, and a notch 15 is provided in the tongue piece 14. The first door body 5 and the second door body 7 are combined so that the tongue piece 13 enters the notch 15, and in this state, the tongue piece 13 is below the inclined surface 6 of the second door body 7, and the tongue piece 14 is the first door body 5
so that it is below the inclined surface 4. 16 is a protrusion provided to extend the inclined surface 4;
7 is a protrusion provided to extend the inclined surface 6. Therefore, the first blade opening 2 is blocked by the inclined surface 4 of the first door body 5 and the tongue piece 14 of the second door body 7,
The second blade opening 3 is blocked by the inclined surface 6 of the second door body 7 and the tongue piece 13 of the first door body 5.

Further, as shown in FIG. 1, a spring body 12, first and second door bodies 5, 7 are arranged on the holding plate 9, and the holding plate 9 with these members arranged is temporarily fixed inside the cover 1. Then, the cover 1 and the body 10 are assembled.

Now, if you insert a pin or other thing into the first plug blade opening 2,
The first door body 5 moves and opens, but the second door body 7 does not move, so the pin arranged inside the body 10 cannot pass through the first blade opening 2 due to the tongue piece 14, and the blade receiving spring 11 cannot be inserted into. Next, when a pin or other object is inserted into the second blade opening 3, the second door body 7 moves and opens, but since the first door body 5 does not move, the pin is inserted into the second blade opening 3 by the tongue piece 13. It cannot pass through and cannot be inserted into the blade receiving spring 11. When the plug is inserted into the first plug blade port 2 and the second plug blade port 3 at the same time using the plug blade, etc.,
Both the first door body 5 and the second door body 7 can be moved and passed through the first blade opening 2 and the second blade opening 3 to be inserted into the blade receiving spring 11.

In Fig. 3, the inclined surfaces 4 and 6 are curved surfaces that are convex upward, and when the plug blade descends along the inclined surfaces 4 and 6, the first door body 5 and the second door body 7 are moved in the left and right direction. Since the moving force is large, the plug blade can be inserted easily.

As described above, the present invention provides a cover that covers the upper opening of the body with a first blade opening and a second blade opening, and a first door body having an inclined surface below the first blade opening. A second door body is provided so as to be movable in the left-right direction and has an inclined surface below the second blade opening, and is provided so as to be movable in the left-right direction, and has an inclined surface continuous in the same direction as the inclined surfaces of both door bodies. A protrusion is integrally provided on both door bodies, and the tongue piece of the first door body extends below the inclined surface of the second door body, and the tongue piece of the second door body extends downward from the inclined surface of the first door body. Because it extends downward from the surface, the door body can have a double structure, and when a pin or other object is inserted into only one side of the door, one side of the door body will not open. It is possible to prevent clips from being inserted, prevent the insertion of foreign objects other than plugs, improve the reliability of door functions such as preventing electric shock, and provide a highly safe outlet with a door. By integrally protruding from both door bodies a protrusion with a sloped surface that is continuous in the same direction as the sloped surface of the door body, the sloped surface on which the plug blade slides becomes larger in appearance. The longer movement distance of the door body makes it easier to insert the plug, and since the protrusions are simply provided to form an inclined surface, the shape and weight of both door bodies are not increased. This has the effect of making the slope larger. In addition, since the first and second door bodies are arranged so as to be movable in the left-right direction on the thick-walled holding plate with a substantially E-shaped cross section, compared to the conventional case where the holding plate was formed of a thin plate. By making the holding plate thick, the holding plate will not deform, warp, or become uneven even during long-term use. Therefore, the first and second door bodies placed on the holding plate The presser plate moves smoothly from side to side and maintains operability even over a long period of time, and the thicker presser plate allows it to be easily formed into a molded product. This problem does not occur when the material is made into a thin plate. Furthermore, since the spring bodies that make elastic contact with the first and second door bodies provided on both sides of the holding plate are in the shape of leaf springs, it is necessary to give them a preliminary deflection during assembly, making them difficult to assemble compared to conventional coil spring systems. Since it is a leaf spring, this kind of thing is not required and it is easy to assemble.
Moreover, it has the effect of not taking up much space in terms of configuration. Furthermore, since the structure is such that the spring body and the first and second door bodies are disposed on the above-mentioned presser plate and the presser plate is placed inside the cover, the spring body and the first and second door bodies are placed inside the cover. By fixing the cover and the body, the spring body and both door bodies can be easily assembled. In addition, since the structure is such that the spring body and both door bodies are placed on the holding plate, by enlarging the shape of the holding plate, multiple spring plates and door bodies can be placed on one holding plate. It has the expandability of being able to deal with plugs.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of one embodiment of the present invention, FIG. 2 is an enlarged perspective view of the first door body and second door body, and FIG.
The figure is an enlarged perspective view of a first door body and a second door body according to another embodiment of the present invention. 2...First plug blade mouth, 3...Second plug blade mouth, 4...
Inclined surface, 5... First door body, 6... Inclined surface, 7...
2nd door body, 9 is a holding plate, 12 is a spring plate, 13...
Tongue piece, 14... tongue piece, 16, 17... protrusion.

Claims (1)

[Claims] 1. A cover that covers the upper opening of the body is provided with a first blade opening and a second blade opening, and a first door body having an inclined surface is provided below the first blade opening so as to be movable in the left and right direction. At the same time, a second door body having an inclined surface is provided below the second blade opening so as to be movable in the left and right direction, and a protrusion having an inclined surface that is continuous in the same direction as the inclined surfaces of both door bodies is integrated with both door bodies. The tongue piece of the first door body extends below the sloped surface of the second door body, and the tongue piece of the second door body extends below the sloped surface of the first door body. , the first and second door bodies are disposed on a presser plate which is thick-walled and has a substantially E-shape in cross section, and which is disposed inside the cover so as to be movable in the left and right direction, and the first and second door bodies are disposed on both sides of the presser plate. An electrical outlet with a door that has a leaf spring-like spring body that makes elastic contact between two door bodies.