JPH09161917A - Electric outlet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve reliability by preventing dust, humidity and the like from entering a case. SOLUTION: An electric outlet 4 is equipped with a box-like frame portion 42 which is fitted to a fitting hole 21 provided in an inner wall 2, and a socket member 41 which is fitted to the inner wall 2 so that the plug insertion face appears at the bottom face of the frame portion 42 protruding toward the back face side of the inner wall 42. The frame portion 42 is equipped with an opening portion 43a into which a plug is inserted and a cover member 44 opening and closing the opening portion 43a, and the cover member 44 is equipped with an emergence port 45 through which a cord connected to the plug passes and also a rubber packing 46 having waterproof and dustproof functions.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric outlet mounted on an inner wall of a building and used for supplying electric power to a connected plug side.

[0002]

2. Description of the Related Art An example of a conventional electrical outlet will be described with reference to FIGS. FIG.
Is an exploded perspective view showing a conventional example, FIG. 6 is a perspective view showing an electric outlet attached to an inner wall and a plug connected to the electric outlet, and FIG. 7 is a sectional view showing a state in which the electric outlet is attached to the inner wall. The electric outlet 1 has a housing body 11 arranged on the back side of the inner wall 2, an outlet member 12 fixed to the housing body 11 and attached to a mounting hole 21 formed in the inner wall 2, and a front surface side of the inner wall 2. From the outlet member 1 through the mounting hole 21
The frame member 13 is attached to the frame member 2, and the lid member 14 is fitted into the frame member 13. The housing body 11 is made of a metal formed in a box shape, and has screw holes 11a and 11a formed at both ends on the open surface side, and an electric wire extending from the outlet member 12 is externally provided on the side surface. A hole 11b for taking out to the inside is provided through. The outlet member 12 includes an outlet body 12a and a mounting plate 12b for fixing the outlet body 12a. The outlet main body 12a has a plug blade insertion port 12c on the front surface, and a socket fitting (not shown) that contacts the plug blade 3a is arranged inside. The mounting plate 12b is manufactured by pressing a metal plate, and the outlet body 1 is provided at the center of the plate surface.
A hole 12d for attaching 2a is provided through, and a screw hole 12e and a long hole 12f are provided at both upper and lower ends. The frame member 13 is made of synthetic resin material,
The inner wall 2 has an opening 13a corresponding to the mounting hole 21, and mounting holes 13b and 13b are provided at both upper and lower ends.
The lid member 14 is formed of a synthetic resin material in a plate shape, and the plate surface thereof is provided with a square hole 14a into which the tip portion of the outlet main body 12a is inserted. Further, engagement pieces 14b that engage with the openings 13a of the frame member 13 are provided on both side surfaces in a protruding manner.

Next, in order to mount the electric outlet 1 having the above-mentioned structure in the mounting hole 21 of the inner wall 2, first, the outlet body 12a is fixed to the mounting plate 12b, and the outlet member 12 is assembled. Next, the rear end side of the outlet member 12 is inserted into the housing body 11 arranged on the back surface side of the inner wall 2, the electric wire is pulled out from the hole 11b of the housing body 11, and the outlet member 12 is connected by the screw member 15.
Is fixed to the housing body 11. Then, the frame member 13
From the surface side of the inner wall 2 to the outlet member 12 through the mounting hole 21, and then the screw member 16 is inserted into the mounting hole 13b of the frame member 13 to insert the screw hole 12e of the outlet member 12.
By being screwed to the frame member 13 and the outlet member 1
2 is fixed to the inner wall 2 by sandwiching the peripheral edge of the mounting hole 21.

Next, the lid member 14 is fitted into the opening 13a of the frame member 13. This allows the electrical outlet 1
As shown in FIG. 6, on the surface side of the inner wall 2, the outlet body 1
The connecting surface of 2a is made substantially flush with the wall surface of the inner wall 2, and
The plug blade insertion port 12c is attached so as to be exposed to the outside, and power is supplied by inserting the plug 3 into the plug blade insertion port 12c.

[0005]

By the way, when the plug 3 side to be inserted into the electric outlet 1 is connected to a household electric appliance such as a refrigerator or a TV, once the plug 3 is inserted into the electric outlet 1, it is possible to Often left plugged in. In such a case, the conventional electric outlet 1 has a structure in which the plug blade insertion port 12c into which the plug 3 is inserted is exposed to the outside, so that the connecting portion between the plug 3 and the electric outlet 1 is cotton. It was easy for dust such as dust to accumulate.

Further, when the accumulated dust absorbs moisture or absorbs water due to dew condensation, spilled water, etc., the insulation between the electrodes deteriorates and heat is generated as the leakage current increases, causing a fire. The present invention has been made to solve the above-mentioned drawbacks, and an object of the present invention is to provide an electric outlet with increased reliability in which dust, moisture, and the like do not easily enter the connection portion with the plug.

[0007]

SUMMARY OF THE INVENTION The present invention is an electrical outlet mounted on an inner wall of a building for supplying electric power to a connected plug side, the electrical outlet being installed in a mounting hole provided in the inner wall. A frame-shaped frame part, and an outlet member attached to the inner wall with the insertion surface of the plug facing the inside of the frame part from the bottom surface of the frame part protruding to the back side of the inner wall, and the frame part Has an opening into which the plug is inserted, and a cover member that opens and closes the opening, and the cover member has an outlet through which a cord connected to the plug is inserted, and has a waterproof and dustproof function. It has a packing attached.

When the plug is connected to the electric outlet constructed as described above, the plug is inserted from the opening of the frame body, and after being connected to the outlet member inside the frame body, The cover member closes the opening of the frame body. As a result, since the connection point between the plug and the outlet member is sealed from the outside, there is no risk of dust, water, etc. adhering to the connection point, and an electrical outlet with increased reliability can be obtained.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to FIGS. FIG. 1 is an exploded perspective view showing an electric outlet of the present invention, and FIG. 2 is a sectional view showing an electric outlet attached to an inner wall. In the drawing, the same reference numerals are used for the same shape and the same purpose as those of the conventional example. Detailed description thereof will be omitted. That is, the electrical outlet 4 of the present invention has a housing body 11 arranged on the back side of the inner wall 2, an outlet member 41 fixed to the housing body 11 and attached to the back side of the inner wall 2, and a mounting hole 21 from the surface of the inner wall 2. The housing main body 11 has the same structure as that of the conventional example.
Further, the outlet member 41 basically has a structure similar to that of the conventional outlet member 12 and includes an outlet body 12a and a metal mounting plate 41a for attaching the outlet body 12a. The difference from the conventional example is that the mounting arm 41b is perpendicular to the plate surface from both ends of the mounting plate 41a.
Has been extended, and the tip portion 41 of the mounting arm 41b is
c is bent outward at a right angle, and the screw hole 41 is
d is provided.

The frame portion 42 comprises a frame main body 43 and a cover member 44 attached to the frame main body 43. Frame body 4
3 is formed of a synthetic resin material into a box shape having an opening 43a on one surface, and a fitting hole 43b into which the front end side of the outlet body 12a is inserted on the bottom surface facing the opening 43a.
Is pierced. The opening 43a is formed on the inner peripheral surface of the cover member 4
4 has a step 43c, and the mounting hole 2 is provided on the outer peripheral surface side.
A flange portion 43d that abuts on the peripheral edge of 1 is provided. Collar part 43
The cover member 44 is provided with an opening 43 at one end in the left-right direction of d.
Hinge receiving part 43 for opening and closing with respect to a
Further, a lock receiving portion 43g for fixing the cover member 44 in the closed state is formed on the other end side, and holes 43e, 43e are provided at the central position in the vertical direction.

The cover member 44 comprises a cover body 45 and a rubber packing 46 attached to the cover body 45. The cover body 45 is formed of a synthetic resin material in a plate shape, and a convex portion 45 a fitted into the frame body 43 is provided on the back surface side so as to project. Further, at the center of the lower side of the cover body 45, an outlet port 45b opened downward by being cut out to reach the convex portion 45a is formed, and the cord 31 connected to the plug 3 is passed through the outlet port 45b. To be done. Further, a hinge portion 45d that engages with the hinge receiving portion 43f of the frame body 43 to support the cover body 45 in an openable and closable manner is provided at one end of the cover body 45 on the front side in the left-right direction,
A lock piece 45e that locks the cover body 45 in the closed state with respect to the opening 43a is rotatably attached to the other end by engaging the lock receiving portion 43g of the frame body 43.

The rubber packing 46 is formed of a rubber material having elasticity into a substantially rectangular ring shape, and a curved portion 46a which is curved inward is provided on the lower side in correspondence with the outlet 45b of the cover member 44. In order to attach the rubber packing 46 to the cover body 45, after applying an adhesive to the rubber packing 46, the curved portion 46a is fitted around the convex portion 45a while making the curved portion 46a correspond to the outlet 45b.
The curved portion 46a is attached so as to slightly project. The cover member 44 having the above configuration is attached to the frame main body 43, and
When assembling, the hinge portion 45d of the cover member 44 is engaged with the hinge receiving portion 43f on the frame body 43 side as shown in FIG.

Next, in order to mount the electric outlet 4 in the mounting hole 21 of the inner wall 2, after the outlet member 41 is fixed to the housing body 11 by the screw member 15 as in the conventional example, the tip portion 41c of the mounting arm 41b is fixed. Is brought into contact with the upper and lower inner edges of the mounting hole 21 from the back side of the inner wall 2. Next, the frame portion 42 is inserted into the mounting hole 21 from the front side of the inner wall 2 with the bottom surface of the frame main body 43 first, and the fitting hole 4 provided on the bottom surface.
The tip portion of the outlet main body 12a of the outlet member 41 is fitted into 3b, the collar portion 43d is brought into contact with the peripheral edge of the mounting hole 21 of the inner wall 2, and is opposed to the mounting arm 41b of the outlet member 41 via the mounting hole 21. After that, the screw member 16 is inserted into the hole 43e of the flange portion 43d and screwed into the screw hole 41c of the outlet member 41, so that the frame portion 42 and the outlet member 41 sandwich the peripheral edge of the mounting hole 21 and the inner wall. Fixed to 2.

In order to connect the plug 3 to the electric outlet 4 mounted on the inner wall 2 as described above, the plug 3 is inserted into the frame portion 42 through the opening 43a, and the outlet provided on the bottom surface of the frame body 43. Plug blade insertion port 12 of body 12a
Insert into c. Then, the cover member 44 is closed by passing the cord 31 connected to the plug 3 through the take-out port 45b of the cover member 44.
No. 4 convex portion 45a is fitted into the frame portion 42, the rubber packing 46 is provided on the surface of the step portion 43c, and the curved portion 46a is further provided.
Is closely attached to the outer peripheral surface of the cord 31. After that, the lock piece 45e is locked to prevent the cover member 44 from opening.
Engage 3g. As a result, as shown in FIG.
Since the connection point between the socket main body 12a and the outlet main body 12a is surrounded by the frame main body 43 and sealed from the outside, even if the plug 3 is inserted into the outlet main body 12a for a long period of time, dust, water droplets, etc. do not adhere to the connection point. It can be prevented. The cover member 44 of the above embodiment is provided with only one outlet 45b through which the cord 31 passes, but the outlet main body 12a.
It is also possible to change the design so as to provide a plurality of outlets 45b according to the number of plugs 3 connected to.

[0015]

As described above, in the electric outlet of the present invention, the plug is inserted into the box-shaped frame portion, the plug and the outlet body are connected inside the frame portion, and then the rubber packing is attached. The cover member closes the opening of the frame. As a result, the connection point between the plug and the outlet body is practically cut off from the outside, so even if the plug is connected to the outlet body for a long period of time, dust and water droplets will not easily adhere to the connection point and reliability is high. Electrical outlets are provided.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention.

FIG. 2 is a sectional view showing an embodiment of the present invention.

FIG. 3 is a perspective view showing a frame portion according to the present invention.

FIG. 4 is a partially cutaway perspective view of an embodiment showing a connection state of plugs.

FIG. 5 is an exploded perspective view showing a conventional example.

FIG. 6 is a perspective view showing a conventional electric outlet mounted on an inner wall and a plug connected to the electric outlet.

FIG. 7 is a sectional view showing a conventional example.

[Explanation of symbols]

 2 Inner wall 21 Mounting hole 3 Plug 4 Electrical outlet 41 Outlet member 42 Frame part 43a Opening 44 Cover member 45b Outlet 46 Rubber packing

Claims (1)

[Claims] 1. An electric outlet which is attached to an inner wall of a building and supplies electric power to a connected plug side,
The electric outlet has a box-shaped frame portion attached to a mounting hole provided in the inner wall and a bottom surface of the frame portion projecting to the back side of the inner wall so that the insertion surface of the plug faces the inside of the frame portion. An outlet member attached to the inner wall is provided, the frame portion has an opening into which the plug is inserted, and a cover member that opens and closes the opening, and the cover member allows a cord connected to the plug to pass therethrough. An electrical outlet characterized by having a rubber packing having a waterproof and dustproof function as well as an outlet.