JP2571484Y2 - Wiring equipment for floor - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor wiring device.

[0002]

2. Description of the Related Art Conventionally, when wiring is performed on a floor in a room, an electric wire from a floor duct or floor box is L-branch (or T-branch or cross-branch) in a floor wiring box (floor wiring equipment). After being pulled out from under the floor to the floor surface F, it is guided and connected to a floor wiring outlet (floor wiring device) at the end via a floor wiring duct (wire protector). It goes without saying that the floor wiring outlet is provided with a plug connection device having a plug blade insertion port on the front surface, and the plug at the end of the power cord of the device is inserted into the plug blade insertion port to supply power. These floor wiring boxes and floor wiring outlets include a box-shaped body and a top plate that form side walls, the body has an opening on the top surface, and the top plate is placed on the body so as to cover the opening of the body. Can be

[0003] Of course, in these floor wiring devices, since the top plate is exposed because it is installed on the floor, a locking structure is provided between the body and the top plate so that the top plate is not easily removed. ing. In the case of a floor wiring outlet, as shown in FIG. 8, a claw 73 is provided on the back surface of the top plate 72, and when the top plate 72 is mounted, an opening 75 on the upper surface of the box-shaped body 71 is provided.
A claw 73 is locked on the back side of the peripheral edge of the body 71 so that the top plate 72 does not come off from the body 71.

In the case of a floor wiring box (branch box), as shown in FIG. 9, a claw 83 is provided on the back surface of the top plate 82, and the box-shaped body 8 is mounted when the top plate 82 is mounted.
A claw 83 is locked on the back side of the periphery of the through hole 85 provided on the upper surface of the upper surface 1 so that the top plate 82 does not come off the body 81.

[0005]

However, in the case of a conventional floor wiring device, if a strong impact is applied to the floor wiring device, for example, when a person's foot hits the top plate, the top plates 72 and 82 may come off, or the claws 73 and 82 may be disengaged.
There is a problem that 83 is broken. Since the claws have elasticity so that necessary displacement occurs when the top plate is attached and detached, for example, as shown in FIG. 10, when a strong impact is applied to the top plate 71 from the direction indicated by the arrow a, the claws 73 Arrow b
It is displaced in the direction shown in FIG. Depending on the strength and direction of the impact, the claws 73 may be broken.

SUMMARY OF THE INVENTION In view of the above circumstances, it is an object of the present invention to provide a floor wiring device in which a top plate is hardly detached and a nail is hardly broken when an impact is applied to the top plate.

[0007]

In order to solve the above-mentioned problems, a floor wiring device installed on a floor according to the present invention includes a box-shaped body having an opening on an upper surface and a body so as to cover the opening. comprising a top plate for covering, in a configuration in which pawl engages with the body is provided on the back surface of the top plate, the rear surface of the top plate, the pawl relative to the body
From the direction opposite to the locking direction of the
It is engaging only in a plane direction contact, locking the pawl relative to the body
A projection is provided for restricting the top plate from moving in the direction in which the top comes off .

The floor wiring apparatus of the present invention includes, but is not limited to, floor wiring outlets and floor wiring boxes (branch boxes). In the case of the floor wiring device of the present invention, it is preferable that the end surface of the top plate is a downwardly inclined surface because the top plate is less likely to come off and the claws are less likely to break when an impact is applied to the top plate.

[0009]

In the floor wiring device of the present invention, for example, as shown in FIG. 1, the back surface of the top plate 2 which is put on the body 1 so as to cover the opening 5 of the box-shaped body 1 having an opening on the upper surface is provided. In addition to the provision of the claw 3 for engaging the body 1, a projection 7 for engaging the body 1 in the surface direction of the opening 5 to regulate the movement of the top plate 2 in the surface direction is provided. In the case of FIG. 1, the side surface of the projection 7 and the side surface of the peripheral edge of the opening 5 are in contact with each other, and the movement of the top plate 2 in the surface direction (the direction of arrow A) is regulated not only by the claw 3 but also by the protrusion 7. When the projections 7 are provided, rattling of the top plate can be suppressed.

The reason why the projection 7 is not a nail is that if the projection 7 is also a nail, it becomes very difficult to remove the ceiling plate 2 when it is necessary and it is necessary to remove the top plate 2, and the practicality is reduced. in addition,
If the end surface 9 of the top plate 2 is an inclined surface, as shown in FIG.
When an impact from the direction of arrow B is applied, the force escapes in the direction of arrow C, and the impact received by the claws 3 and the projections 7 is weakened.

Conventionally, as shown in FIG. 10, the end surface 79 of the top plate 72 is not an inclined surface but a vertical surface, so that a person is liable to trip and is likely to receive a strong impact. All the impacts were received by the claws 73, which was not very desirable.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a floor wiring device according to the present invention will be described below. This invention is, of course, not limited to the following embodiment. Example 1 FIG. 3 is an exploded view of a box-shaped body and a top plate, which are main parts of a floor wiring box (branch box) according to Example 1.

The floor wiring box according to the first embodiment has a box-shaped body 11 having an opening 15 on an upper surface, and a top plate (decorative plate) 12 which is put on the body 11 so as to cover the opening 15.
It has. At the four corners on the back surface of the top plate 12, claws 13 are provided to be locked to the body 11. When the top plate 12 is mounted, the claws 13 are provided on the back side of the periphery of the through hole 14 provided on the upper surface of the body 11. Lock the body 11 from the top plate 12
Is not detached.

As shown in FIG. 4, a projection (reinforcing wall) 17 abutting on the peripheral side surface of the opening 15 corresponds to almost the entire circumference of the opening 15 in addition to the claws 13 on the back surface of the top plate 12. As described above, the movement of the top plate 12 in the surface direction is regulated as described above. In FIG. 4, the projections 17 are indicated by thick black lines for convenience. In addition, the end surface 16 of the top plate 12 is a downwardly inclined surface over the entire circumference.

A knockout 19 is provided on a side surface of the body 11, and when a wiring duct is connected, the knockout is removed to open a connection port. The body 11 also has an opening on the bottom surface. Example 2 FIG. 5 is an exploded view of a box-shaped body and a top plate, which are main parts of a floor wiring outlet according to Example 2.

The outlet for floor wiring according to the second embodiment also has a box-shaped body 21 having an opening 25 on the upper surface, and a top plate (decorative plate) 2 which is put on the body 21 so as to cover the opening 25.
2 is provided. A body 2 is provided on the peripheral end of the back surface of the top plate 22.
1, the claw 23 is provided on the back of the periphery of the opening 25 on the upper surface of the body 21 when the top plate 22 is mounted, and the top plate 22 does not come off the body 21. It has become.

In addition to the claws 23 on the back surface of the top plate 22, as shown in FIG. 6, projections (reinforcement walls) 27 that contact the peripheral side surface of the opening 25 are provided at the four corners of the opening 25 and the front end side. It is provided in five places, and as described above, the movement of the top plate 22 in the surface direction is restricted by this. In FIG. 6, the protrusion 27 is indicated by a thick black line for convenience. In addition, the top plate 22
End surface 26 is a downward inclined surface over the entire circumference.

A knockout 29 is provided on the side surface of the body 21. When connecting a wiring duct, the knockout is removed to open a connection port. The body 21 also has an opening on the bottom surface and a notch 31 on the front surface for attaching a plug connector. FIG.
Represents the wiring constructed on the floor F using the floor wiring box BO of the first embodiment and the floor wiring outlet CN of the second embodiment.

In this wiring, an electric wire from a floor duct or a floor box is branched into L (or T-branch or cross-branch) in a floor wiring box BO or pulled out from under the floor to the floor F, and then is laid on the floor. Through a duct FD (wire protector) for connection to a floor wiring outlet CN at the end. The floor wiring outlet CN is provided with a plug connection device 35 having a plug blade insertion port on the front surface, and a plug at the tip of a power cord of the device is inserted into the plug blade insertion port to supply power.

[0020]

[Effects of the Invention] As described above, the floor wiring device of the present invention has a claw that locks to the body on the back surface of the top plate,
Since the projection for restricting the movement of the top plate in the surface direction is also provided, the top plate is unlikely to come off, the nail is broken, or the top plate is hardly rattled, which is very useful.

In addition, if the end surface of the top plate is a downwardly inclined surface, there is an advantage that detachment of the top plate and breakage of the claws are less likely to occur.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional view showing an example of a configuration of a main part of a floor wiring device of the present invention.

FIG. 2 is a partial cross-sectional view for explaining an impact applied to a top plate of the floor wiring device of FIG. 1;

FIG. 3 is an exploded perspective view showing a body and a top plate of the floor wiring box according to the first embodiment.

FIG. 4 is a plan view showing the back surface of the top plate of the floor wiring box according to the first embodiment.

FIG. 5 is an exploded perspective view showing a body and a top plate of an outlet for floor wiring according to a second embodiment.

FIG. 6 is a plan view showing a back surface of a ceiling plate of the floor wiring outlet according to the second embodiment.

FIG. 7 is a perspective view showing the wiring constructed on the floor using the floor wiring box of FIG. 3 and the floor wiring outlet of FIG. 5;

FIG. 8 is a partial cross-sectional view showing a main part configuration of a conventional floor wiring outlet.

FIG. 9 is a partial cross-sectional view showing a main part configuration of a conventional floor wiring box.

10 is a partial cross-sectional view for explaining an impact applied to a top plate of the floor wiring outlet of FIG. 8;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Box-shaped body 2 Top plate 3 Claw 7 Projection 11 Box-shaped body 12 Top plate 13 Claw 17 Projection 21 Box-shaped body 22 Top plate 23 Claw 27 Projection

──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Sho 64-34822 (JP, U) Japanese Utility Model Sho 56-100870 (JP, U) Japanese Utility Model Hei 2-139412 (JP, U) (58) Survey Field (Int.Cl. ⁶ , DB name) H02G 3/18 H02G 3/12

Claims (2)

(57) [Scope of request for utility model registration] 1. A box-shaped body having an opening on an upper surface, and a top plate that is put on the body so as to cover the opening, and a claw that is engaged with the body is provided on a back surface of the top plate. in floor wiring accessories to be installed on a floor, on the rear surface of the top plate, locking side of the pawl relative to the body
Are engaging only in a plane direction from a direction toward the opposing contact with the peripheral side surface of the opening, is out engagement of the pawl relative to the body
A wiring device for floors, characterized by being provided with a projection for restricting the top plate from moving in the surface direction in the direction. 2. An end surface of the top plate is a downwardly inclined surface.
The wiring device for floor described.