JP3460684B2 - Electric plug storage electric outlet - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrical outlet, and more particularly to a wall-embedded electrical outlet containing an electrical plug.

[0002]

2. Description of the Related Art Conventionally, a wall-embedded electric outlet is generally one in which a main body of the outlet having one or a plurality of plug insertion ports is fixed by a screw or the like in a box previously mounted before wall construction. Is used for. An example of such a conventional art is shown in FIG.

As shown in FIGS. 6A and 6B, the wall surface 1
The mounting box 15 is preliminarily mounted in the housing 0, and the outlet main body 11 is fixed to the mounting box 15 with screws 16. The outlet main body 11 is provided with one or a plurality of (two in this example) plug insertion openings 14. By inserting the electric plug 12 with the power cable 13 into the plug insertion opening 14 facing the room , Power cable 1
Supply power to the electrical equipment that comes with 3. Although not shown, external power supply wiring is connected to the back surface of the outlet main body 11 in the mounting box 15. In this way, the outlet main body 11 is generally fixed to the wall surface 10.

As another conventional example, a prior document in which an outlet main body is rotated with respect to a wall surface is disclosed in Japanese Utility Model Laid-Open No. 5-15.
It is disclosed in Japanese Patent No. 376. The structure and operation of this prior art document are shown in FIG.

As shown in FIGS. 7A and 7D, the wall surface 1
0 to the mounting box 24 attached to the shaft 2
The outlet main body 21 with 3 as a fulcrum rotates in the wall surface 10. The outlet body 21 having a substantially square shape is provided with a plug insertion port 22 on one side surface 21a,
The side surface 21b adjacent to the side surface 21a is simply a smooth surface.

In such a structure, when the electric plug is not inserted and not in use, the smooth side surface 21b is faced to the front as shown in FIGS. When using with an electric plug, the same figure (b), (e) to (c),
When the outlet main body 21 is rotated as shown in (f), the side surface 21a having the plug insertion port 22 faces the front in the same manner as in FIGS. (C) and (f), and the electric plug can be inserted. ing.

Therefore, the plug insertion port 22 is not used except when in use.
Since it is not exposed to the front, there is an advantage that it is possible to prevent a child, an infant or the like from accidentally inserting a wire, a pin or the like into the plug insertion port 22 and causing an electric shock accident.

[0008]

However, in both of the above-mentioned two conventional examples, when the electric plug is inserted into the outlet main body, the inserted electric plug is in front of the wall surface, that is, in the state of use. It protrudes into the room and becomes a projection in the room. Therefore, when installing furniture, etc. in the room, it is not necessary to place the furniture in front of the wall by the length of the protruding electric plug, or place the furniture aside by the width of the electric plug. However, the efficiency of using the space in the room deteriorates.

In view of the above-mentioned conventional problems, the object of the present invention is to prevent furniture from sticking to the wall surface of the furniture without the electric plug projecting into the room as a protrusion even when the electric plug is inserted into an electric outlet and used. An object of the present invention is to provide an electric outlet containing an electric plug that does not impair the use efficiency of space in a room.

[0010]

The electric plug-containing electric outlet of the present invention is a wall-embedded electric outlet, which is embedded in the wall and invades dust from the surroundings.
Plug the dust-proof box and the electric plug.
Provided with a plug insertion port for insertion and parallel to the wall surface
It is equipped with a rotating shaft that prevents the dust.
It is rotatably held in the box like the rotation of the top.
Plug the outlet body and the electric plug into the plug
Inside the wall, the outlet body plugged into the mouth
Rotate it like the spinning top and put the electric plug in front.
The cable attached to the electrical plug when stored in the wall
It is provided on the periphery of the outlet body to guide the bull.
Cable groove.

[0011]

Further, when the cable is guided and inserted into the cable groove, no gap is created between the outlet body and the dust prevention box, and the rotary shaft is provided integrally with the outlet body. May be.

Further, a stopper may be provided to prevent reverse rotation when the outlet main body having the electric plug inserted therein is rotated in the wall surface, or at least at both sides of the front surface of the outlet main body. One of the terminals may be provided with a display capable of rotating the outlet body.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings.

1A to 1C and 2A to 2C.
(C) is a side sectional view, a transverse sectional view, and a front view, respectively, showing a first embodiment of the present invention.

In the first embodiment, as shown in FIG. 1, there is a dust prevention box 5 having a shape to be embedded in a wall surface 10 in a room. Dust prevention box 5
As shown in Figs. 1 (a) and 1 (b), it is surrounded by three sides and the upper and lower sides, and only one side facing the room is open, and it is difficult for dust to enter from the surroundings. Has a hole 5a into which a rotary shaft 4 described later enters.

The outlet main body 1 has a rectangular shape whose cross section is substantially horizontally long, and has one or a plurality of (two in this example) plug insertion ports 7 on one surface in the longitudinal direction, and the center of the upper and lower surfaces. A rotary shaft 4 is integrally provided in each part. By inserting the rotary shaft 4 into the upper and lower holes 5a of the dust prevention box 5, the axis A vertically penetrated by the rotary shaft 4 becomes parallel to the wall surface 10 as shown in FIG. With the rotating shaft 4 as a fulcrum in the box 5
It is held rotatably like the rotation of a "top" . While holding the outlet body 1, attach the dust prevention box 5 to the wall surface 10.
Fixed by embedding.

The width B of the outlet main body 1 is almost the same as the inside dimension of the dust prevention box 5, and when the outlet main body 1 is rotatably held by the rotating shaft 4, it is shown in FIGS. ), There is no gap between the inner dimension of the dust prevention box 5 and the lateral dimension B of the outlet body 1. It should be noted that both side portions of the outlet main body 1 are arcuate as shown in FIG. 1B so that they can be smoothly rotated when the rotary shaft 4 is rotated as a fulcrum.

A cable retaining groove 6 is engraved at a position corresponding to the plug insertion port 7 on the peripheral portions of both side surfaces of the arc-shaped outlet main body 1. The depth of the engraved cable retaining groove 6 is substantially the same as the thickness of the power cable 3 described later. When held as described above, the surface of the outlet main body 1 having the plug insertion port 7 is retracted by the dimension L from the outer surface of the opening of the dust prevention box 5.

At the plug insertion port 7 of the outlet main body 1,
An electric plug 2 at the end of a power cable 3 from an electric device installed in a room is inserted to supply power to the electric device. Although not shown, an indoor wiring cable 8 from an external power source is connected and wired to the outlet body 1 through the rotary shaft 4.

The operation of the electric outlet of the first embodiment having the above-mentioned structure will be described.

As shown in FIG. 1, the electric plug 2 at the tip of the power cable 3 is inserted into the plug insertion port 7 of the outlet main body 1 in a state where the surface having the plug insertion port 7 faces the room. Since the surface having the plug insertion port 7 is retracted by the dimension L from the outer surface of the opening of the dust prevention box 5, most of the inserted electric plug 2 is inserted into the dust prevention box 5.

In this state, as shown in FIG. 2, by pushing one of the left and right sides of the surface of the outlet body 1 by hand, the outlet body 1 moves in the direction of the arrow with the rotating shaft 4 as a fulcrum.
It rotates like the rotation of a "top" . When it is rotated 180 degrees, the part of the plug insertion port 7 into which the electric plug 2 is inserted wraps around to the back side, and the electric plug 2 ends up in the dust prevention box 5.
It is in a state of being housed inside, that is, inside the wall surface 10.

At the time of this rotation, the power cable 3 goes around to the back side along with the electric plug 2, but the power cable 3 enters while being guided by the cable retaining groove 6 carved in the peripheral portion of the outlet body 1. Go around. Since the peripheral edges of both sides of the outlet main body 1 are arcuate, the rotation is smooth even if there is no gap between the dust prevention box 5 and the inside of the dust prevention box 5. Since the power cable 3 causes an appropriate friction with the inside of the dust prevention box 5, the outlet body 1 is eventually rotated while receiving a slight frictional force.

After rotating the outlet main body 1 by 180 degrees in this way, the electric plug 2 is housed in the wall surface 10 as shown in FIGS. Only 3 remains, and the electric plug 2 does not project as a protrusion. Further, since there is no gap between the outlet body 1 and the inside of the dust prevention box 5, dust from the outside does not enter the inside. further,
Even if the power cable 3 is pulled from the indoor side for some reason due to a slight frictional force acting between the power cable 3 and the dust prevention box 5 after the rotation, the outlet body 1 is easily rotated in the reverse direction. Can be stopped.

As described above, since the electric plug 2 inserted into the outlet main body 1 is housed in the wall surface 10, the projections corresponding to the electric plug 2 do not project to the inside of the room, and the furniture or the like is correspondingly removed. Since it can be attached to the wall surface 10, it can be used efficiently in the space of the room.

FIGS. 3A to 3C are a side sectional view, a lateral sectional view and a front view, respectively, showing a second embodiment of the present invention, and FIG. 3D is used for this embodiment. It is a perspective view of an outlet main body stopper.

As shown in FIG. 3, the second embodiment differs from the first embodiment only in that an outlet body stopper 9 is additionally provided. The other configuration is almost the same as the configuration of the first embodiment.

That is, the outlet main body 1 having a rectangular cross section is rotatably held in parallel with the wall surface 10 in the dust prevention box 5 through the rotating shafts 4 provided above and below the plug body 1 and embedded in the wall surface 10. Insert the electric plug 2 into the plug insertion port 7 on one surface of the outlet main body 1 which is retracted by the dimension L from the opening surface of the dust prevention box 5, and rotate the rotary shaft 4 as a fulcrum.
The electric plug 2 is stored in the wall surface 10.

In the second embodiment, as shown in FIG.
As shown in (b), there is a gap between the inner dimension of the dust prevention box 5 and the lateral dimension of the outlet body 1. That is, when the inner dimension of the dust prevention box 5 is D and the lateral dimension of the outlet body 1 is C, D> C. By providing this clearance, the cable retaining groove 6 engraved on the peripheral portion of the outlet main body 1 is apparently engraved deeply with respect to the inner wall of the dust prevention box 5, and the thickness of the power cable 3 to be inserted can be freely set. Can have
We can handle everything from thick power cables to thin power cables.

When the power supply cable 3 is thick, the power supply cable 3 which has entered the cable retaining groove 6 causes a proper friction with the inside of the dust prevention box 5 as in the first embodiment, so that the reverse of the outlet body 1 It can prevent rotation. However, when the power cable 3 is thin, friction with the inside of the dust prevention box 5 does not occur, and therefore the reverse rotation of the outlet body 1 cannot be prevented. Therefore, as a means for preventing the reverse rotation of the outlet main body 1, an outlet main body stopper 9 is provided.

The outlet body stopper 9 is shown in FIG. 3 (d).
As shown in Fig. 3, it is composed of a leaf spring member, and is shown in Figs.
As described above, it is attached to the dust prevention box 5 side so as to escape the cable retaining groove 6 in the clearance between the outlet main body 1 and the dust prevention box 5. The mounting method may be either screw fixing or adhesive fixing to the inner wall of the dust prevention box 5.

In the second embodiment as described above,
Regardless of whether the power cable 3 from the electric equipment in the room is thick or thin, the electric plug 2 at the tip thereof is inserted into the plug insertion port 7 of the outlet body 1, and the outlet body 1 is rotated about the rotation shaft 4 as a fulcrum. . When rotated 180 degrees, the portion of the plug insertion port 7 into which the electric plug 2 has been inserted wraps around to the back side, and the electric plug 2 is housed in the wall surface 10.

At this time, the reverse rotation of the outlet body 1 is prevented by the frictional force generated between the outlet body 1 and the dust prevention box 5 by the outlet body stopper 9, so that the power cable 3 Can be used regardless of thickness. When the power cable 3 is thin, it is of course that the reverse rotation is blocked by the frictional force of the outlet main body stopper 9, and when the power cable 3 is thick, the frictional force between the power cable 3 itself and the dust prevention box 5 is also increased. Since there is no need to rely on it, the power cable 3 is also good in terms of reliability.

4 and 5 are front views showing the third and fourth embodiments of the present invention. In these two embodiments, a rotating display is provided on the front surface of the outlet main body 1.

In the third embodiment shown in FIG. 4, a rotating display 1a shown in the shape of a hand is provided on the front surface of the outlet main body 1, that is, on both sides of the surface having the plug insertion port 7. .

Further, in the fourth embodiment shown in FIG.
On the front surface of the outlet main body 1, that is, on both sides of the surface on which the plug insertion port 7 is provided, a display 1b for rotation called "PUSH" is provided.

Display 1a or display 1 for these two rotations
By providing b, the electric plug 2 can be connected to the plug insertion port 7
It is easy to see that the outlet main body 1 can be rotated in the wall surface 10 after being inserted into the wall, and the position to be pushed for rotating is also easy to understand.

In the above description, the display 1a for rotation and the display 1 are used.
Although b is illustrated as being provided on both sides of the front surface of the outlet main body 1, the present invention is not limited to this and may be provided on only one of the front surfaces of the outlet main body 1.

[0040]

According to the present invention, as described above, according to the present invention, the outlet body inserting the electrical plug in the wall, "this
By rotating the plug like an electric power cord, the inserted electric plug is housed in the wall so that it does not protrude to the indoor side, and only the power cable remains on the indoor side. When the plug is inserted, the electric plug becomes a protrusion in the room, and when installing furniture etc., put the furniture in front of the wall by the length of the electric plug, or put the furniture aside by the width of the electric plug. Such problems can be solved, and furniture can be attached to the wall surface to put a large space in the room, and the efficiency of use of the room space can be improved.

Also, even if the outlet body rotates, no gap is created between the dust prevention box and the outlet body, and the dust in the dust prevention box is combined with the power cable entering the cable retaining groove or the outlet body stopper. There is an effect that can be prevented from entering.

[Brief description of drawings]

FIG. 1 shows a configuration of a first embodiment of the present invention (a).
Is a side sectional view, (b) is a lateral sectional view, and (c) is a front view.

FIG. 2A is a side sectional view, FIG. 2B is a lateral sectional view, and FIG. 2C is a front view showing an operating state of the first embodiment of the present invention.

FIG. 3 shows a configuration of a second embodiment of the present invention (a).
Is a side sectional view, (b) is a lateral sectional view, (c) is a front view, and (d) is a perspective view of an outlet main body stopper used in this embodiment.

FIG. 4 is a front view showing a third embodiment of the present invention.

FIG. 5 is a front view showing a fourth embodiment of the present invention.

FIG. 6A is a side sectional view and FIG. 6B is a front view showing an example of a conventional wall-embedded electric outlet.

FIG. 7 (a), (b), (c) is a front view showing another example of a conventional wall-embedded electric outlet, (d),
(E), (f) is sectional drawing.

[Explanation of symbols]

1,11,21 Outlet body 2,12 electric plug 3,13 power cable 4,23 rotation axis 5 Dust prevention box 6 cable retaining groove 7,14,22 Plug outlet 8 Indoor wiring cable 9 Outlet body stopper 10 wall surfaces 15,24 mounting box 16 screws 1a, 1b display 21a, 21b side surfaces

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) H01R 13/46 303 H01R 13/46 H01R 13/46 304 H02G 3/02 301 H02G 3/18

Claims (6)

(57) [Claims] 1. A wall-embedded electrical outlet
Is embedded in the wall surface to prevent dust from entering from the surroundings.
Insert the dust-proof box that was stopped and the electric plug
It has a plug insertion port and is installed parallel to the wall surface.
It is equipped with a rotating shaft, and inside this dust prevention box
Is held rotatably like the rotation of the top.
Cent body and the electrical plug is the plug insertion port
The main body of the outlet plugged into
The electric plug to the wall.
Cable attached to the electrical plug when stored in-plane
Was provided on the periphery of the outlet body to guide the
Electric plug storage characterized by having a cable groove
Electrical outlet. 2. The cable is guided in the cable groove.
When inserted, the outlet body and the dust prevention box
2. The structure according to claim 1, wherein there is no gap between them.
Electric plug storage electrical outlet. 3. The rotating shaft is integral with the outlet body
It is provided in 1.
An electrical outlet containing the described electrical plug. 4. The receptacle with the electrical plug inserted
Prevents reverse rotation when rotating the main unit inside the wall.
A stopper for stopping is provided.
3. An electric concentrator for storing an electric plug according to any one of 3
To. 5. The stopper is formed of a leaf spring.
An electric plug housing electric concentrator according to claim 4,
To. 6. A seat on both sides of the front surface of the outlet body.
At least one side can rotate the outlet body
6. A display is provided, and the display is made.
An electric outlet containing an electric plug according to any one of 1.