JPH0317540Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] This invention relates to a mounting frame used for attaching a wiring device to a construction surface.

[Background technology]

The mounting frame for wiring devices is usually flat. This flat mounting frame is suitable for use with embedded wiring, but has a problem in that it is not suitable for use with exposed wiring. In the case of embedded wiring,
The wiring can be inserted into the wiring fixture from the back side of the mounting frame through the hole in the mounting frame, but in the case of exposed wiring, if you insert the wiring into the wiring fixture in the same way as above, the wiring fixture will not interfere with the wiring. This is because the wires rise up by the thickness, so holes must be made on the side of the wiring device for the wires to pass through.

[Purpose of invention]

This invention was devised in view of the above circumstances, and its purpose is to provide a mounting frame for a wiring device that is suitable for both exposed wiring and embedded wiring.

[Disclosure of invention]

In order to achieve the above-mentioned purpose, this invention is a mounting frame for attaching a wiring device to a construction surface, and its middle part protrudes in a groove shape toward the back side, so that it can be attached to the bottom of the groove. A mounting for a wiring device, characterized in that a step is formed between both sides of the frame to serve as a space for drawing in the wiring, and a hole for drawing in the wiring is formed on the side surface of the groove. The outline is the frame. Hereinafter, this invention will be explained in detail based on drawings showing embodiments.

1 to 5 are explanatory diagrams of a rainproof wiring device using the mounting frame according to this invention. As shown in these figures, this rainproof wiring device includes an insulating cover 1, a mounting frame 2, a sensor block 3, a plate frame 4, a lid 5, a lid mounting piece 6, a waterproof packing 7, and a cover 8. Each is equipped with one. When installing rainproof wiring equipment on a construction surface,
In Figures 1, 2, 4 and 5, arrow A
The direction in which it faces is downward, and in Figure 3, the direction in front of the page is downward. The insulating cover 1 is made of an insulating material such as synthetic resin, and has a frame part 1a and a fastening part 1 that is bendably connected to the frame part 1a at both ends thereof.
It has b and 1b. Round holes 9a to 9d are provided on both sides of the frame portion 1a and both fastening portions 1b, 1b, and round holes 9c on the back side (the side facing the construction surface when assembled) of both fastening portions 1b, 1b. Cylindrical bodies 10a and 10b are provided at the edge of 9d. Insulation cover 1
Wiring is passed through the hole 1c as necessary. The mounting frame 2 is made of stainless steel or the like, and has a groove-shaped intermediate portion protruding toward the back surface, and a groove-shaped groove 2a.
A step is formed between the bottom surface of the mounting frame and both sides 2b and 2c of the mounting frame to provide a space for wiring. Mounting frame 2
The hole 2d is formed extending from the bottom to the side of the groove 2a. Female screws 11a, 11a (only one visible in the figure) are provided at the upper ends of both sides 2b, 2c, screw insertion holes 11b, 11c (only one visible in the figure) are provided at the lower ends, and female screws 11c,
11c is provided. Round holes 2e and 2f are provided at the upper and lower ends of the bottom surface of the groove 2a. A plug blade insertion hole 3a is provided on the lower surface of the outlet block 3, and screw insertion holes 3b are provided on both sides. The plate frame 4 is provided with protruding pieces 4a, 4a that protrude downward on both sides of the back end, and both protruding pieces 4
A, 4a are provided with screw insertion holes 12a, 12a. Screw insertion holes 4c, 4c are provided on both sides of the hole 4b of the plate frame 4. The lid mounting piece 6 has screw insertion holes 13, 13 on both sides of the plate 6a.
Two bearings 13a, 13a (only one is visible in the figure) are provided on both sides of the front side of the plate. Two bearing parts 13a, 1
3a is provided with a shaft hole 14, and a notch 15 is provided on the front side of the front bearing portion 13a. A bearing portion 5b having a shaft hole 5a is provided at one end of the lid 5, and a thin hole 16 is provided on the front side of this bearing portion 5b. The waterproof gasket 7 has a frame shape, and grooves 7a, 7a (the front side is not visible in the figure) are provided on the front and back sides. The cover 8 includes a frame 8a and a protrusion 8b that covers the front side of the frame 8a.
A window 8c is opened on the lower side of b. Frame portion 8a
Screw insertion holes 17 (only three are visible in the figure) are provided at the four corners of the frame 8a.
Two protrusions 18 having female threads 18a are provided on the lower side of the holder. A protrusion 19 is provided along the frame 8a on the back side of the frame 8a, and a groove 20 is formed on the window 8c side of the protrusion 8b.

This rainproof wiring device is assembled as follows. First, the fastening part 1b of the insulating cover 1,
1b and insert the cylinders 10a and 10b into the round hole 2e of the mounting frame 2 and the round hole 9a of the insulating cover 1, and between the round hole 2f of the mounting frame 2 and the round hole 9 of the insulating cover 1.
b, respectively, to fix the insulating cover 1 to the mounting frame 2. Next, screws 21, 21,
Screw insertion holes 12a of the plate frame 4, respectively.
12a and screw insertion holes 11b, 1 of the mounting frame 2
1b and the bolt 22 through the screws 21, 21, the plate frame 4 is protruded from the front side of the lower end of the mounting frame 2. The mounting frame 2 is then fixed to the construction surface 23 as shown in FIGS. 3 and 4. In the case of exposed wiring, as shown in the upper part of FIGS. 3, 4, and 5, the wiring 24, 25 is connected to the back surface of both sides 2b, 2c of the mounting frame 2 and the construction surface 23.
A space H formed between the two holes is passed along both sides of the hole 2d. As shown at the bottom of Figure 5,
When the box 26 is embedded in the construction surface 23, that is, in the case of embedded wiring, the insulating cover 1
Both wirings 2 pass through hole 1c of and hole 2d of mounting frame 2.
Connect the tips of 7 and 28 to the outlet block 3.

Next, place the use part of the outlet block 3, that is, the plug blade insertion hole 3a, into the plate frame 4.
exposed through hole 4b. And screws 23, 2
3 into the screw insertion hole 4 of the plate frame 4, respectively.
The outlet block 3 is fixed to the plate frame 4 by passing washers 24, 24 and nuts 25, 25 through the screws 23, 23 through the screw insertion holes 3b, 3b of the outlet block 3. Outlet block 3 is plate frame 4
The outlet block can be easily replaced since it is screwed into the socket.

While doing the above, the bearing portion 5b of the lid 5 is inserted between the bearing portions 13a, 13a of the lid mounting piece 6.
Insert. Then, a coil spring 26 is inserted from one bearing part 13a, and one end of the coil spring 26 is inserted into the thin hole 16 of the intermediate bearing part 5b, and the other end is inserted into the notch 15. This coil spring 26 is used to bias the lid 5 so that it is always closed. next,
The shaft rod 27 is inserted into the shaft holes 14, 14 of the bearing parts 13a, 13a and the shaft hole 5a of the bearing part 5b. Thereafter, the lid attachment piece 6 is attached to the cover 8 by inserting the screws 28, 28 into the screw insertion holes 13, 13 of the lid attachment piece 6 and the female threads 18a, 18a of the cover 8, respectively. Then, after fitting the protrusion 19 of the cover 8 into the groove (not shown) 7a on the front side of the waterproof gasket 7 and fitting the edge of the plate frame 4 into the groove 20 of the cover 8, the four screws 2
8..., the packing 29..., the screw insertion hole 17 of the cover 8, and the female screw 11 of the mounting frame 2.
The cover 8 is attached to the mounting frame 2 by inserting it into the holes 11a, 11a, 11c, and 11c.

Then, as shown in FIG. 1, the plate frame 4 is laterally protruded from the bottom of the mounting frame 2, and the cover 8 that covers the space above the plate frame 4 is fixed to the mounting frame 2, and inside this space. A rainproof wiring device is obtained in which the outlet block 3 with the plug blade insertion hole 3a exposed from the hole 4b of the plate frame is housed and fixed to the plate frame 4 in a replaceable manner.

As mentioned above, the mounting frame for wiring devices according to this invention has a groove-shaped intermediate portion projecting toward the back surface, thereby forming a step between the bottom of the groove and both sides of the mounting frame. Since wiring lead-in holes are formed not only on the bottom surface but also on the side surfaces, both exposed wiring and buried wiring can be used. Furthermore, since the mounting frame is groove-shaped, it has higher strength than a flat-plate-shaped mounting frame. Furthermore, since the wiring device is passed through the steps provided on both sides of the mounting frame, the height of the wiring device can be made lower than when the wiring device is passed through the middle portion of the mounting frame.

Note that the wiring device to which the wiring device mounting frame according to the present invention is provided is not limited to the rainproof type wiring device as described above.

[Effect of idea]

The mounting frame for wiring devices according to this invention is a mounting frame for mounting wiring devices on a construction surface, and
By protruding the middle part toward the back side in a groove shape, a step is formed between the bottom of the groove and both sides of the mounting frame to provide a space for wiring, and the side surface of the groove is Since a hole is formed for wiring in, it is suitable for both exposed wiring and buried wiring.

In particular, on both sides of the groove-shaped part in the center of the mounting frame, there is a space for wiring in between the construction surface on which the groove-shaped part is installed and fixed, so the wiring can be drawn in along this space and , Wiring can be drawn into the wiring device through a wiring drawing hole formed on the side surface of the groove-shaped portion adjacent to the space.

When wiring a wiring device exposed on a construction surface, the bottom surface of the wiring device is brought into contact with the construction surface and fixed with screws, etc., so it is not possible to form a hole for wiring in the bottom surface. This is because if there is a wiring entry hole on the bottom, the wire must be passed along between the bottom of the wiring device and the construction surface to the wiring entry hole, and the wiring equipment will be placed in the construction by the thickness of the wire. This is because it ends up being lifted off the surface.

For this reason, in the past, a hole for wiring in the wiring was provided on the side of the wiring device, and the wiring was drawn in from there. The inside of the wiring device is visible through the cable, which is very unsightly, and it is also easy for dust, foreign matter, moisture, etc. to enter through the wiring lead-in hole. In addition, if you shake the external wiring from side to side or pull it, the wiring will be deformed starting from the wiring entry hole, so there is a possibility that the wiring may be damaged or broken at the corner of the wiring entry hole. It also had the disadvantage of being expensive.

Therefore, if the wiring device could be attached to the construction surface with a space left on both sides of the back side, as in this idea, the wiring could be smoothly drawn in along the space, and then the grooves could be formed deep inside the back side. Wires can be drawn in through the wiring hole on the side surface of the part, and the wiring hole is less visible from the outside, improving the appearance, and making it difficult for dust, moisture, etc. to enter. Moreover, even if the external wiring is pulled or swung from side to side, the wiring is supported by the space with a certain length and the wiring lead-in hole, so the starting point is only from the corner of the wiring lead-in hole. This prevents the wiring from being deformed and prevents the wiring from being damaged.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a rainproof wiring device equipped with a wiring device mounting frame according to this invention, Fig. 2 is an exploded perspective view of the same rainproof wiring device, and Figs. 3 to 5 show wiring FIG. 2 is an explanatory diagram of connection operation. 2...Mounting frame, 2a...Groove, 2b, 2b...
Side part, 2d...hole.

Claims (1)

[Scope of utility model registration request] This is a mounting frame for attaching a wiring device to a construction surface, and its middle part protrudes in a groove shape toward the back surface, so that there is a space between the bottom of the groove and both sides of the mounting frame.
1. A mounting frame for a wiring device, characterized in that a step is formed to provide a space for wiring, and a hole for wiring is formed on a side surface of the groove.