JP3694846B2 - Wiring fixture mounting frame - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a wiring fixture mounting frame that is attached to a wall material and holds the wiring fixture.
[0002]
[Prior art]
As this type of conventional wiring apparatus mounting frame, for example, there is one disclosed in JP-A-6-225426.
FIG. 5 shows a conventional wiring fixture mounting frame.
In the figure, the wiring fixture mounting frame 1 has a square mounting frame body 2 attached to the surface side of a square wall hole 12 formed in the wall material 11, and a wiring fixture (not shown) is attached to the mounting frame main body 2. Is held in the central opening 2a. On the back side of the mounting frame main body 2, a pair of mounting brackets 3 are provided at the upper and lower ends. The mounting bracket 3 has a projection 3a inserted into a square hole 2b of the mounting frame main body 2, and is integrated with the mounting frame main body 2 by a screw 4 as a clamping tool. Here, the mounting bracket 3 is formed by bending a rectangular plate material, and can be easily manufactured by pressing.
[0003]
The wiring fixture mounting frame 1 having such a configuration has the long hole 2c of the mounting frame main body 2 and the screw hole 3c of the mounting bracket 3 in a state where the contact portion 3b of the mounting bracket 3 is in contact with the back surface of the wall material 11. The wall material 11 is sandwiched and fixed by the mounting frame main body 2 and the mounting bracket 3 through the inserted screws 4. Therefore, in mounting the wiring fixture mounting frame 1, as shown in FIG. 6, after the mounting bracket 3 is inserted into the wall hole 12 in a state of being slightly inclined downward, as shown in FIG. Is attached by sandwiching the wall material 11 between the mounting frame main body 2 and the contact portion 3b of the mounting bracket 3.
[0004]
[Problems to be solved by the invention]
By the way, when the wall hole 12 for attaching the wiring fixture mounting frame 1 to the wall material 11 is formed in a square shape as shown in FIG. 5, a saw or a cutter is used to form the wall hole 12. It was a very time-consuming task.
[0005]
Therefore, if the wall hole 12 is formed into a round hole as shown in FIG. 8, it can be easily formed using a well-known piercing tool such as a hole saw. Here, when the wiring fixture mounting frame 1 has an elongated shape that is long in the vertical direction, the wall hole 12 is formed in a shape in which a part of two or more circular through holes are overlapped and connected, Also in this case, since a piercing tool such as a hole saw can be used, the wall hole 12 can be easily formed.
[0006]
However, when the wiring device mounting frame 1 is to be mounted in the wall hole 12 formed of such a circular through hole, the mounting bracket 3 is formed by bending a rectangular plate material, and the contact portion 3b has a constant width. Therefore, when the mounting bracket 3 is inserted into the wall hole 12 made of the circular through hole, as shown in FIG. The left and right end portions 3d shown interfere with the arc-shaped peripheral edge of the wall hole 12 and prevent insertion. For this reason, attachment work is very difficult and troublesome, and depending on the shape of the wall hole 12, attachment may be difficult.
[0007]
Then, this invention makes it a subject to provide the wiring fixture attachment frame which can be easily attached to the wall hole by which the periphery was formed in circular arc shape.
[0008]
[Means for Solving the Problems]
A wiring device mounting frame according to the present invention includes a mounting frame main body that is attached to the surface side of a wall hole formed in a shape in which a part of two circular through holes are overlapped and connected in the vertical direction, and the mounting frame main body by inserted through the screw in the two positions of the upper and lower end portions provided with a mounting bracket attached to the rear surface of the attachment frame body, wherein the mounting bracket is formed of a metal plate, and a screw hole through which the screw is screwed, the A contact portion that is bent so as to contact the back of the wall when attached to the mounting frame body, and the contact portion has a distal end portion and a base end portion corresponding to the shape of the peripheral edge of the wall hole. The wall material is sandwiched between the contact portion and the mounting frame body by screwing the screw into the screw hole.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to FIGS.
In the figure, a wiring fixture mounting frame 1 is integrally formed by attaching a pair of mounting brackets 3 by screws 4 as clamping tools to upper and lower ends on the back side of a mounting frame main body 2 formed in a substantially rectangular plate shape. It is a thing. The mounting frame body 2 is formed with a central opening 2a to which a wiring device (not shown) is attached at the center, and the wiring device is connected to an engagement hole 2d formed at both right and left ends of the center opening 2a. Engagement protrusions provided at the left and right ends of the device are engaged and held on the wiring device mounting frame 1.
[0010]
The mounting bracket 3 is formed by bending a metal plate material, and has a flat contact portion 3b that contacts the back surface of the wall material 11 when the wiring device mounting frame 1 is mounted on the wall material 11. A screw hole 3c to be screwed and a protrusion 3a to be inserted into the square hole 2b of the mounting frame main body 2 are provided. The mounting bracket 3 is temporarily fastened to the mounting frame main body 2 by screwing screws 4 inserted through a pair of elongated holes 2e formed in the mounting frame main body 2 into the mounting bracket body 3 into the screw holes 3c. It is integrated in the state. Further, the square hole 2b of the wiring fixture mounting frame 1 is formed at a height at which the mounting bracket 3 can move up and down a predetermined distance. Furthermore, at least the tip of the contact portion 3b of the mounting bracket 3 is formed in an arc shape. Since the mounting bracket 3 is formed by bending a rectangular plate material, it can be easily manufactured by pressing.
[0011]
On the other hand, the wall hole 12 of the wall material 11 to which the wiring device mounting frame 1 is attached is part of two circular through holes as shown in the rear view showing the mounting bracket and the wall hole as seen from the back of the wall in FIG. Are polymerized in the vertical direction and connected to form a daruma.
[0012]
Therefore, the wiring fixture mounting frame 1 is mounted in the vertical direction corresponding to the wall hole 12 that is long in the vertical direction. Further, since the projection 3a and the screw 4 can move up and down in the square hole 2b and the long hole 2e of the wiring device mounting frame 1 respectively, the mounting bracket 3 can be slid in the vertical direction by a predetermined distance. ing. The arcuate tip of the contact portion 3b of the mounting bracket 3 is formed with a curvature substantially corresponding to the peripheral edge of the wall hole 12.
[0013]
Next, the attachment of the wiring fixture mounting frame of the present embodiment configured as described above to the wall material will be described.
In order to attach the wiring fixture mounting frame 1 formed by integrating the mounting frame main body 2 and the mounting bracket 3 to the wall member 11 by temporarily tightening the screws 4, as shown in FIG. Are moved toward the center of the wall hole 12 in the mounting frame main body 2. In this state, the mounting bracket 3 is inserted into the wall hole 12, and the mounting frame body 2 is brought into contact with the surface of the wall material 11. At this time, since the mounting bracket 3 is moved toward the center of the wall hole 12 and the tip of the contact portion 3b of the mounting bracket 3 is formed in an arc shape, both left and right end portions 3d of the contact portion 3b. Can be smoothly inserted without interfering with the peripheral edge of the wall hole 12 and hindering insertion. After the mounting bracket 3 is inserted into the wall hole 12, the projection 3a and the screw 4 of each mounting bracket 3 are respectively attached to the mounting frame as shown in the rear view of the mounting bracket and the wall hole as viewed from the back of the wall in FIG. The mounting bracket 3 is slid in the vertical separation direction by moving it within the square hole 2b and the long hole 2e of the main body 2, and the contact portion 3b is opposed to the back surface of the wall material 11. Next, the screw 4 is screwed into the screw hole 3c of the mounting bracket 3, and the wall material 11 is sandwiched between the back surface of the mounting frame main body 2 and the contact portion 3b of the mounting bracket 3 as shown in FIG. Thus, the mounting of the wiring fixture mounting frame 1 to the wall material 11 is completed.
[0014]
As described above, the wiring device mounting frame of the present invention is mounted on the front surface side of the wall hole 12 whose peripheral edge is formed in an arc shape, and is mounted on the back surface of the mounting frame body 2 as a clamping tool. The mounting bracket 3 has a contact portion 3b that contacts the back surface of the wall material 11 via the screw 4 and the mounting frame body 2 holds the wall material 11 therebetween. The tip of the portion 3b is formed in an arc shape corresponding to the shape of the peripheral edge of the wall hole 12.
[0015]
Therefore, since the tip of the contact portion 3b of the mounting bracket 3 is formed in an arc shape corresponding to the shape of the peripheral edge of the wall hole 12, the mounting bracket is inserted into the wall hole 12 whose peripheral edge is formed in an arc shape. 3 can be smoothly inserted, and the wiring fixture mounting frame 1 can be easily attached to the wall material 11.
[0016]
And in connection with it, the application range which can form the wall hole 12 by a circular through-hole expands. As a result, a circular through-hole can be drilled in the wall material 11 using a well-known drilling tool such as a Horso, compared with the conventional formation of the square wall hole 12 by using a saw or a cutter, The wall hole 12 can be formed very easily.
[0017]
By the way, the wall hole 12 in the above embodiment is formed by connecting two circular holes. However, the present invention is not limited to this, and three or more circular holes are used. Can be applied to any wall hole 12 in which the peripheral edge forms an arc shape, such as those connected in the same direction or connected in the vertical and horizontal directions.
[0018]
Moreover, in the said Example, although the screw 4 is used as a clamping tool and the wall material 11 is clamped with the attachment frame main body 2 and the mounting bracket 3, a clamping tool is not restricted to this, For example, It can also be clamped by using a clamp or a leaf spring having a U-shaped cross section.
[0019]
【The invention's effect】
As described above, the wiring device mounting frame of the present invention is attached to the front surface side of the wall hole whose peripheral edge is formed in an arc shape, and is attached to the back surface of the mounting frame main body via the clamping tool. It has a contact portion that contacts the back surface of the wall material, and comprises a mounting bracket that sandwiches the wall material by the mounting frame body, and the tip of the contact portion of the mounting bracket is the shape of the peripheral edge of the wall hole Corresponding to the arc shape. Therefore, since the tip of the contact portion of the mounting bracket is formed in an arc shape corresponding to the shape of the peripheral edge of the wall hole, the mounting bracket is smoothly inserted into the wall hole formed in the circular arc shape of the peripheral edge. The wiring device mounting frame can be easily attached to the wall material.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a wiring device mounting frame of an embodiment of the present invention from the back side.
FIG. 2 is a rear view of the mounting bracket and the wall hole showing a state before the mounting bracket in FIG. 1 is inserted from the back side of the wall.
3 is a rear view of the mounting bracket and the wall hole showing the state after inserting the mounting bracket in FIG. 1 from the back side of the wall. FIG.
FIG. 4 is a longitudinal sectional view of a main part showing a state after the wiring device mounting frame of the embodiment of the present invention is mounted on a wall material.
FIG. 5 is a perspective view showing a conventional wiring device mounting frame and a wall hole.
FIG. 6 is a longitudinal sectional view of a main part showing a state when a conventional wiring fixture mounting frame is attached.
FIG. 7 is a longitudinal sectional view of a main part showing a state after a conventional wiring device mounting frame is mounted.
FIG. 8 is a main part rear view showing a state in which a conventional wiring device mounting frame is mounted on a wall hole made of a circular through hole.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Wiring fixture mounting frame 2 Mounting frame main body 2b Contact part 3 Mounting bracket 4 Screw 11 Wall material 12 Wall hole

Claims (1)

A mounting frame main body that is attached to the surface side of the wall hole formed in a shape in which a part of the two circular through holes are overlapped and connected in the vertical direction;
A mounting bracket that is attached to the back surface of the mounting frame main body by screws inserted through two locations at both upper and lower ends of the mounting frame main body;
The mounting bracket is formed of a metal plate material, and includes a screw hole into which the screw is screwed, and a contact portion that is bent to be brought into contact with the back of the wall in a state of being attached to the mounting frame body. The abutting portion has a tip portion and a base end portion formed in an arc shape corresponding to the shape of the peripheral edge of the wall hole,
A wiring device mounting frame, wherein a wall member is sandwiched between the contact portion and the mounting frame main body by screwing the screw into the screw hole.

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