JPH0678429A - Metal fitting for attaching round wiring instrument - Google Patents

Abstract

PURPOSE:To attach a round wiring instrument to a round instrument attaching hole. CONSTITUTION:This is a metal fitting for attachment, which retains a round wiring instrument installed in the round instrument attaching hole bored in a wall panel. This is equipped with a semicircular metal fitting body 3 arranged along the margin of an opening on the rear side of an instrument attaching hole. This is provided with a screw receiving part 5 wherein the mounting screw 4 projected from the round wiring instrument is screwed through an instrument attaching hole. For the round wiring instrument, the margin is abutted against the margin of the opening on the surface side of the instrument attaching hole.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a round wiring device mounting bracket for mounting a round wiring device in a round device mounting hole formed in a wall panel.

[0002]

2. Description of the Related Art A round wiring device A has recently been proposed because the hole mounting work can be facilitated by making the device mounting holes formed in the wall panel from square to round. In this type of round wiring device A, a mounting projection 200 is projected from the back part of the wiring device body, and the back part of the wiring device body is inserted into the device mounting hole 2 as shown in FIG. Then
The locking piece 201 held at the tip of the mounting protrusion 200 is locked to the opening edge of the device mounting hole 2 on the back surface side of the device mounting hole 2, and the mounting screw 4 holding the locking piece 201 is tightened. The round wiring device A is attached to the device mounting hole 2 by sandwiching the opening edge of the device mounting hole 2 between the stopper 201 and the peripheral end of the wiring device body.

[0003]

However, in the conventional example as described above, the thickness of the wall panel 1 to be mounted by the protruding size of the mounting projection 200 projecting from the back of the wiring apparatus body. Since the dimensions are determined, the mounting state is influenced by the mounting projection 200, that is, the device mounting hole 2
The thickness of the wall panel 1 in which the holes are formed is determined by the mounting projection 20.
If the length is larger than 0, there is a problem that the wiring device cannot be mounted in the device mounting hole 2.
Further, the wiring device is mounted by partially locking the locking piece 201 held at the tip of the mounting projection 200 to the opening edge on the back side of the device mounting hole 2. There was a problem that the mounting strength was low.

An object of the present invention is to solve the above-mentioned problems, and it is possible to carry out the mounting in correspondence with the thickness dimension of the wall panel in which the equipment mounting hole is to be bored, and with a high mounting strength. An object of the present invention is to provide a metal fitting for mounting a round wiring device that can mount the round wiring device on a wall surface.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a mounting device for holding a round wiring device A installed in a round device mounting hole 2 formed in a wall panel 1. A metal fitting, which is a semi-arcuate mounting metal fitting body 3 arranged along the opening edge on the back surface side of the equipment mounting hole 2, and a peripheral edge of which is brought into contact with the opening edge on the front surface side of the equipment mounting hole 2. It is characterized in that it has a screw receiving portion 5 into which a mounting screw 4 protruding from the round wiring device A is screwed through a device mounting hole 2.

Further, a locking piece 6 which is locked to the inner peripheral surface of the opening of the equipment mounting hole 2 projecting from both ends of the fitting main body 3, and a part of the inner peripheral end of the fitting main body 3. The round-shaped wiring device mounting bracket may be configured by including the partially bent projecting tongue piece 7. Further, a fixing piece 9 having a screw hole 8 into which the mounting screw 4 is screwed is projected from the inner peripheral end of the mounting metal fitting body 3 to form a screw receiving portion 5, which is provided at the tip of the mounting screw 4. Also, a guide inclined surface 11 may be provided at the opening edge of the screw hole 8 corresponding to the guide inclined surface 10 that becomes thinner at the tip.

Further, the tip of the tongue piece 7 may be brought close to the end of the attachment fitting body 3 so that the tongue piece 7 projecting from the inner peripheral end of the attachment fitting body 3 is inclined. . In addition, the tongue piece 7 protruding from the inner peripheral end of the mounting bracket body 3
Alternatively, a reinforcing piece 12 that can be separated from the tip of the reinforcing piece 12 may be provided so that the tip of the reinforcing piece 12 is connected to the fitting main body 3.

Further, the tongue pieces 7 may be provided so as to project from two positions on the inner peripheral end of the mounting metal body 3 respectively.

[0009]

The mounting screw 4 protruding from the round wiring device A is screwed into the screw receiving portion 5 of the mounting metal fitting body 3 and tightened so that the round wiring equipment A and the mounting metal fitting body 3 are connected to each other. The round wiring device A can be mounted in the device mounting hole 2 by sandwiching the opening edge of the device mounting hole 2 formed in the wall panel 1 with various thicknesses by tightening the mounting screw 4. The round wiring device A can be mounted in the device mounting hole 2 formed in the wall panel 1 while corresponding to the wall panel 1 having a size.

[0010]

The present invention will be described below in detail based on the illustrated embodiments. As shown in FIG. 1, the main body of the round-shaped wiring fixture mounting metal holding the round-shaped wiring fixture A is composed of a mounting metal fitting body 3 formed by punching a metal plate material into a semi-arc shape. There is. A tongue piece 7 projects from the inner peripheral edge of the mounting metal fitting body 3, and a screw receiving portion 5 projects from the inner periphery of both ends of the mounting metal fitting body 3. Also,
A locking piece 6 is provided so as to project from the inner peripheral end of the fitting main body 3 close to the screw receiving portion 5. The fitting main body 3 is formed such that the inner peripheral edge thereof is along the outer peripheral edge of the instrument mounting hole 2 so as to be arranged along the opening edge of the round instrument mounting hole 2 formed in the wall panel 1. . Mounting bracket body 3
A concave groove 13 is provided on the surface of the fitting along the longitudinal direction, and the bending strength of the fitting main body 3 is improved by the concave groove 13.

The screw receiving portion 5 is formed by projecting fixing pieces 9 inward from the inner peripheral edges of both ends of the fitting main body 3 and forming screw holes 8 in the fixing pieces 9. This screw hole 8
A mounting screw 4 projecting from the round wiring device A is screwed into this, and the tip of this mounting screw 4 has an inclined surface for guiding which becomes thinner toward the tip as shown in FIG. 10 are formed. The upper opening edge of the screw hole 8 is provided with a guide inclined surface 11 having a larger diameter toward the upper side so as to correspond to the inclined surface 10 provided on the mounting screw 4. When it is screwed into the screw 8, the screw holes 8 are easily searched by the inclined surfaces 10 and 11, so that the screwing work can be performed quickly without any trouble.

A projecting piece 6a is integrally projecting from the inner peripheral end of the fitting main body 3 so that the locking piece 6 is located on both sides of the fixing piece 9, and the tip of this projecting piece 6a is bent. It is formed by that. Circular wiring device A that is installed in the device mounting hole 2 formed in the wall panel 1 with the circular wiring device mounting bracket
Are formed as shown in FIG.

The plate frame 14 disposed on the front surface of the wall panel 1 is formed in a round shape, and an opening 15 is formed at the substantially center thereof.
Are formed. Legs 16 having a U-shaped cross section are integrally projectingly provided on both sides of the back surface of the plate frame 14 to form a wall panel 1.
The leg 16 is adapted to be inserted into the round instrument mounting hole 2 formed in the. The mounting screw 4 is adapted to be inserted into the insertion hole 17 and the leg 16 of the plate frame 14.
Here, in the illustrated embodiment, the plate frame 14 is provided with the legs 16;
6 does not have to be provided.

Locking claws 19 are integrally formed at the four corners of a middle frame 18 which is detachably mounted in the opening 15 of the plate frame 14, and locking recesses are formed inside the opening 15 of the plate frame 14. 20 is formed and the opening 15 of the plate frame 14 is formed.
By disposing the middle frame 18 therein, and inserting and locking the locking claw 19 into the locking recess 20, the middle frame 18 is detachably attached to the plate frame 14.

A switch 21 is arranged in the middle frame 18, and a pair of locking protrusions 22 projecting from both sides of the switch 21 are inserted and locked in the locking holes 23 of the middle frame 18,
The switch 21 is detachably attached to the middle frame 18. The middle frame 18 has a size such that two switches 21 can be mounted, but in the illustrated embodiment, one switch 21 is mounted. In this case, the locking projections 22 of the switch 21 are locked in the two locking holes 23 inside the middle frame 18.

The middle frame 18 is used in the case of a switch 21 such as a piano-operated push button switch. Two locking holes 23 are provided on both sides, and two switch 21 are provided. It can be installed. Switch 21
The middle frame 18 depending on whether two pieces are attached or one piece.
Inner locking hole 2 for common pitch adjustment
3 is longer than the outer one.

A metal refractory panel 24 is mounted on the front surface of the plate frame 14, and a hole 25 for exposing the switch 21 is formed in the center thereof. Also,
Around the fire-resistant panel 24, a circular hole 18 for allowing the mounting screw 4 to escape is formed. Claws 28 that are inserted and locked in the holes 27 of the plate frame 14 are formed at four locations on the periphery of the fireproof panel 24.

An operating handle 29, which is detachably mounted on the upper surface of the switch 21, is formed in a disk shape, and an operating mark 30 for pushing with a fingertip is formed on one end side of the handle 29. A display window 31 is formed on the other end side of the handle 29. The operation mark 30 is formed by providing a circular recess 30a. A display unit 32 for lighting and displaying is provided on the upper surface of the switch 21, and a lens 33 that collects the display light and transmits it to the display window 31 is attached to the lower surface of the handle 29.

A decorative frame 35 having an opening 34, which is slightly larger than the handle 29, is formed in the shape of a round frame, and a locking claw 36 is integrally formed on the back surface thereof. The locking claw 36 is inserted and locked in a locking recess 37 formed in the plate frame 14 so that the decorative frame 35 can be detachably mounted. Further, a rib for guiding when fitting with the plate frame 14 is formed around the rear surface of the decorative frame 35, and an internal concealing rib 38 is integrally formed along the opening 34.

In the assembly, the switch 21 can be fixed to the plate frame 14 by the procedure of mounting the switch 21 on the middle frame 18 and mounting the middle frame 18 on the plate frame 14. Claws 28 are bent and formed at four locations on the outer peripheral portion of the fireproof panel 24, and the outer surface of the claw 28 is formed by cutting and raising the crocodile portion. Therefore, when the fire-resistant panel 24 is mounted on the front surface of the plate frame 14 and the claw 28 is inserted into the hole 27, the claw portion has a hole 2.
The fireproof panel 24 can be securely fixed to the plate frame 14 by locking the fireproof panel 24 on the inner side surface of the plate frame 7. Further, a decorative frame 35 is provided on the outer peripheral portion of the fireproof panel 24.
Square hole 3 for escape to insert the locking claw 36 of
9 are formed at 4 places. Therefore, the decorative frame 35 can be fixed to the plate frame 14 without disturbing the fireproof panel 24. Further, as described above, a square hole 25 is formed in the center of the fireproof panel 24 so that the front surface of the switch 21 is exposed from the hole 25 for easy operation. The shape of the hole 25 can be processed according to the shape of the instrument used. A cutout 101, through which a tongue piece 7 projecting from a mounting metal fitting body 3 mounted in an equipment mounting hole 2 is inserted, is provided in an outer peripheral edge of the fireproof panel 24 in a state of communicating with the hole 39. There is. Also, the plate frame 14 has a notch 10
0 is provided.

In order to install the round wiring device A into the round device mounting hole 2 formed in the wall panel 1 by using the round wiring device mounting bracket, first, as shown in FIG.
As shown in (a), the tongue piece 7 is bent to the front side of the mounting metal fitting body 3 by about 90 °, and the mounting metal fitting body 3 is attached.
4 is inserted into the instrument mounting hole 2, the locking piece 6 is brought into contact with the inner peripheral surface of the opening of the instrument mounting hole 2 as shown in FIG. 4 (b), and the tongue piece 7 is shown in FIG. 4 (c). Like 10 more
It is bent by 20 ° to 20 ° so that the base end of the tongue piece 7 is brought into contact with the opening edge on the front surface side of the equipment mounting hole 2 to prevent the mounting metal fitting body 3 from falling off to the back surface side of the wall panel 1. 4 is temporarily fixed in a state where the mounting bracket main body 3 is positioned in the instrument mounting hole 2, and then the tongue piece 7 protruding to the surface side of the wall panel 1 is attached to the plate frame 1 as shown in FIG.
4, the plate frame 14 is fitted together with the switch 21 into the instrument mounting hole 2 so as to be inserted into the notch 100 provided in the plate 4, and the mounting screw 4 is screwed from the surface side of the plate frame 14 to the screw hole 8 of the mounting bracket body 3. Then, the plate frame 14 is connected and fixed to the fitting main body 3. Then, the tongue piece 7 protruding from the plate frame 14 is cut off from the root by a tool such as a cutter as shown in FIG.
The decorative frame 35 and the handle 29 are attached so that the base end of the device is pushed inward, and the round wiring device A is installed in the device attachment hole 2.

FIG. 7 and FIG. 8 show another embodiment, in which the tongue piece 7 projecting from the inner peripheral end of the fitting main body 3 is inclined. The tip of 7 is located close to the end of the fitting main body 3 so that material loss can be reduced when the fitting main body 3 with the tongue 7 is formed by punching. In other words, the tongue piece 7 is not tilted, and
As shown by the solid line, the metal plate that is to be punched if it is formed outward is a tongue arranged in an inclined state as shown by the broken line in FIG. It is necessary to use a metal plate whose area is larger than that of the piece 7 only in the shaded area in FIG. 7, which causes material loss, but the tongue 7 is arranged in an inclined state. In this case, the shaded area in FIG. 7 is unnecessary, and material loss can be eliminated. In this case, the tongue piece 7 is bent and used as shown by the solid line at the time of use.

FIG. 9 shows still another embodiment, in which a reinforcing piece 12 detachable from the tip of a tongue piece 7 projecting from the inner peripheral end of the fitting main body 3 is shown. And the tip of the reinforcing piece 12 is attached to the mounting bracket body 3
Is connected to the tongue 7 before transportation or before construction.
Can be prevented from deforming. In this case, the reinforcing piece 12 is cut and the tongue piece 7 is bent and raised when used. A thin cutoff line 12a is provided at the end of the reinforcing piece 12 so that the reinforcing piece 12 can be easily cut off.

10 and 11 show still another embodiment, in which the mounting metal fitting body 3 is shown.
The tongue pieces 7 are provided so as to project from two positions on the inner peripheral edge of the device, so that the attachment fitting main body 3 can be reliably temporarily fixed to the instrument attachment hole 2. That is, both tongue pieces 7 are bent toward the front surface side of the instrument mounting hole 2 and the base end of the tongue piece 7 is locked to the opening edge on the front surface side of the instrument mounting hole 2 so as to project from two locations. The base end of the tongue piece 7 is locked to the opening edge on the front surface side of the instrument mounting hole 2 so that the mounting bracket body 3 can be temporarily fixed to the instrument mounting hole 2 reliably. Has become.

In the structure shown in FIG. 10, the two metal fittings 3 are arranged so that they are adjacent to each other at the center of the inner peripheral edge of the fitting main body 3.
The tongue piece 7 of the book is projected in the same direction. In the structure shown in FIG. 11, one end side of the fitting main body 3 is extended, and the tongue piece 7 is protruded inward from the inner peripheral edge of the extended end. The tongue piece 7 is formed so as to project outward from the substantially central portion of the inner peripheral edge of the fitting main body 3, and the tongue piece 7 is bent and the base end of the tongue piece 7 is attached to the instrument mounting hole. When it is locked to the opening edge of 2, the base end of the tongue piece 7 is locked to the opening edge of the instrument mounting hole 2 at a vertically opposed position, and temporary fixing to the instrument mounting hole 2 is further facilitated. It is sure to be done.

[0026]

As described above, the present invention is a mounting metal fitting for holding a round wiring instrument installed in a round instrument mounting hole formed in a wall panel, the back side of the instrument mounting hole. The semi-arcuate mounting metal fittings that are placed along the opening edge of the device, and the mounting screw protruding from the round wiring device whose peripheral edge comes into contact with the opening edge on the surface side of the device mounting hole. Since it is formed with a screw receiving part that is screwed in through the hole, the round type is formed by screwing the mounting screw protruding from the round type wiring device into the screw receiving part of the mounting bracket body and tightening it. A round wiring tool can be mounted in the tool mounting hole by sandwiching the opening edge of the tool mounting hole formed in the wall panel between the wiring tool and the mounting bracket body, and various types can be mounted by tightening the mounting screws. Not compatible with wall panels of different thickness dimensions It is capable of mounting a round wire instrument drilled tool mounting hole in Luo wall panel. Also, the main body of the mounting metal fitting, which comes into contact with the opening edge on the back side of the equipment mounting hole, is formed in a semi-circular shape, and since it comes into contact with almost half of the opening edge, round wiring with high mounting strength. The equipment can be mounted on the wall.

Further, a locking piece to be locked to the inner peripheral surface of the opening of the equipment mounting hole projecting from both ends of the mounting metal fitting body and a part of the inner peripheral end of the mounting metal fitting body. When the round-shaped wiring device mounting bracket is configured with the projecting and bendable tongue pieces, the mounting bracket body is in contact with the opening edge on the back side of the device mounting hole. The locking piece is locked to the inner peripheral surface of the opening of the device mounting hole, the tongue is bent to the surface side of the device mounting hole, and the base end of the tongue is locked to the opening edge of the surface of the device mounting hole. Thus, the mounting metal fitting main body can be temporarily fixed to the instrument mounting hole in the positioned state.

Further, a fixing piece having a screw hole into which a mounting screw is screwed is projected from an inner peripheral end of the mounting metal fitting body to form a screw receiving portion, and a tip end of the mounting screw is provided. If the opening edge of the screw hole is provided with a slanting surface for the guide corresponding to the slanting surface for the guide, the mounting screw is screwed into the screw hole of the screw receiving portion and the mounting metal fitting main body is attached. When connecting with a round wiring device, the screw holes can be easily searched for, and the screwing work can be performed quickly without any trouble. In particular, even in the case where the screw receiving portion cannot be visually inspected and the position cannot be visually confirmed in the state where the round wiring device is provided, the connection and the fixing by the mounting screw can be quickly performed without trouble.

Further, when the tip of the tongue piece is brought close to the end portion of the mounting metal fitting body so that the tongue piece protruding from the inner peripheral end of the mounting metal fitting body is inclined, the tongue piece is A plate material with a small area can be used when the plate material is punched out to form the mounting bracket body without protruding significantly outward from the mounting bracket body, and it is possible to reduce parts loss. In addition, it is possible to prevent the tongue piece from being deformed when it is painted or during transportation.

Further, a reinforcing piece that can be separated from the tip of the tongue piece that projects from the inner peripheral end of the mounting metal fitting body is provided,
If the tip of the reinforcing piece is connected to the mounting metal fitting body, it is possible to prevent the tongue piece from being deformed during transportation or before construction. Also, when the tongue pieces are projected from the inner peripheral end of the mounting metal fitting body respectively, both tongue pieces are bent toward the surface of the instrument mounting hole, and the base end of the tongue piece is attached to the instrument. By locking to the opening edge on the surface side of the hole, the base ends of the tongue pieces projecting from two locations will be locked to the opening edge on the surface side of the device mounting hole, and mounting to the device mounting hole. The metal fitting body can be temporarily fixed securely.

[Brief description of drawings]

FIG. 1 is a plan view of a round wiring device mounting bracket and mounting screws showing an embodiment of the present invention.

FIG. 2 is a front view of the above-described circular wiring device mounting bracket.

FIG. 3 is an exploded perspective view of a wiring device.

4 (a), (b), (c), (d), and (e) are explanatory views for explaining a mounting procedure.

FIG. 5 is a partially enlarged sectional view of a screw hole.

FIG. 6 is a partially enlarged front view of a mounting screw.

FIG. 7 is a plan view of a round wiring device mounting bracket and a mounting screw according to another embodiment.

FIG. 8 is a front view of the above-mentioned circular wiring device mounting bracket.

FIG. 9 is a plan view of a round-shaped wiring device mounting bracket showing still another embodiment.

FIG. 10 is a plan view of a round-shaped wiring device mounting bracket showing still another embodiment.

FIG. 11 is a plan view of a round-shaped wiring device mounting bracket showing still another embodiment.

FIG. 12 is a sectional view of a conventional example.

[Explanation of symbols]

 A Round wiring device 1 Wall panel 2 Device mounting hole 3 Mounting bracket body 4 Mounting screw 5 Screw receiving part 6 Locking piece 7 Tongue piece 8 Screw hole 9 Fixing piece 10 Sloping surface 11 Sloping surface 12 Reinforcing piece

Claims (6)

[Claims] 1. A mounting metal fitting for holding a round wiring tool installed in a round tool mounting hole formed in a wall panel, the fitting being arranged along an opening edge on the back side of the tool mounting hole. The semi-arcuate mounting metal fitting body and the mounting screw protruding from the round wiring device whose peripheral edge comes into contact with the opening edge on the surface side of the device mounting hole are screwed in through the device mounting hole. A metal fitting for mounting a round wiring device, characterized by comprising a screw receiving portion. 2. An engaging piece to be engaged with an inner peripheral surface of an opening of an equipment mounting hole projecting from both ends of a mounting metal fitting body, and partially from a part of an inner peripheral end of the mounting metal fitting body. The metal fitting for mounting a round-shaped wiring device according to claim 1, further comprising: a projecting foldable tongue piece. 3. A fixing piece having a screw hole into which a mounting screw is screwed is projectingly provided from an inner peripheral end of a mounting metal fitting body to form a screw receiving portion, and a tip end of the mounting screw is provided. The metal fitting for mounting a round wiring device according to claim 1, wherein a guide inclined surface is provided at an opening edge of the screw hole corresponding to the narrowed guide inclined surface. 4. The tip of the tongue piece is brought close to the end portion of the mounting metal fitting body so that the tongue piece projecting from the inner peripheral end of the mounting metal fitting body is inclined. Round metal fittings for mounting the wiring equipment described in 2. 5. A tongue piece projecting from an inner peripheral end of the mounting metal fitting body is provided with a reinforcing piece projecting from the tip of the tongue piece, and the tip of the reinforcing piece is connected to the mounting metal fitting body. The metal fitting for mounting a round wiring device according to claim 2. 6. A tongue piece is projectingly provided from two locations on an inner peripheral end of the mounting metal fitting body.
Metal fittings for mounting the circular wiring equipment described.