JP3131299B2 - Metal fitting for round wiring equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fitting for mounting a round wiring device 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 a hole for mounting a device to be formed in a wall panel is changed from a square shape to a round shape to facilitate a drilling operation. In this type of round wiring device A, a mounting projection 200 is provided so as to project from the back of the wiring device main body, and the back of the wiring device main body is inserted into the device mounting hole 2 as shown in FIG. And
The locking piece 201 held at the tip of the mounting projection 200 is locked to the opening edge of the instrument mounting hole 2 on the back surface side of the tool mounting hole 2, and the mounting screw 4 for holding the locking piece 201 is tightened to engage. 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 between the stopper 201 and the peripheral end of the wiring device main body.

[0003]

However, in the above-described conventional example, the thickness of the wall panel 1 to be attached according to the projection size of the attachment projection 200 projecting from the back of the wiring device body. The dimensions will be determined, and the mounting state will be affected by the mounting projections 200. That is, the tool mounting hole 2
The thickness dimension of the wall panel 1 in which the holes are formed is 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.
Also, since 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 surface side of the device mounting hole 2, the wiring device is mounted. There was a problem that the mounting strength was low.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, and it is possible to mount the apparatus in accordance with the thickness dimension of a wall panel in which an instrument mounting hole is to be formed and to obtain a high mounting strength. An object of the present invention is to provide a fitting for mounting a round wiring device, which can mount the round wiring device on a wall surface.

[0005]

According to the present invention, in order to achieve the above object, a mounting device for holding a round wiring device A installed in a round device mounting hole 2 formed in a wall panel 1 is provided. the bracket includes a semicircular arcuate mounting bracket main body 3 arranged along the back surface side of the opening edge of the tool attachment hole 2, and the peripheral edge is brought into contact with opening edges of the surface side of the instrument attachment hole 2 It includes a screw receiving portion 5 mounting screw 4 which projects from the round wiring mechanism a is screwed through the tool mounting hole 2 formed, the screw
Positions of both ends of the mounting bracket body 3 in which the receiving portion 5 has a semicircular arc shape
On both sides in the circumferential direction of the screw receiving portions 5 at both ends.
Engagement that locks along the inner peripheral surface of the opening of the round instrument mounting hole 2
A stop piece 6 is provided, and a part of the inner peripheral end of the mounting bracket body 3.
It is characterized in that a tongue piece 7 that can be bent more partially is provided.

Further, a fixing piece 9 having a screw hole 8 into which the mounting screw 4 is screwed is protruded from the inner peripheral end of the mounting metal body 3 to form a screw receiving portion 5, and the tip of the mounting screw 4 is formed. A guide inclined surface 11 may be provided at the opening edge of the screw hole 8 in correspondence with the guide inclined surface 10 that becomes thinner as the tip is provided.

Further, the tip of the tongue piece 7 may be made to approach the end of the mounting bracket body 3 so that the tongue piece 7 projecting from the inner peripheral end of the mounting bracket body 3 is inclined. . Also, a tongue piece 7 protruding from the inner peripheral end of the mounting bracket body 3.
It is also possible to project a reinforcing piece 12 that can be separated from the tip of the mounting piece, and connect the tip of the reinforcing piece 12 to the mounting bracket main body 3.

Further, the tongue pieces 7 may be respectively protruded from two locations on the inner peripheral end of the mounting bracket body 3.

[0009]

The round wiring device A and the mounting bracket body 3 are screwed into the screw receiving portion 5 of the mounting bracket body 3 and tightened. 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. 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 the dimensions.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the illustrated embodiments. Circular wiring accessory mounting bracket for holding a round wiring device A is mainly is constituted by mounting bracket main body 3 is formed in the work to a semicircle arc punching a metal plate material as shown in FIG. 1 ing. A tongue 7 protrudes from the inner peripheral end of the mounting bracket body 3, and a screw receiving portion 5 protrudes from the inner circumference of both ends of the mounting bracket body 3. A locking piece 6 protrudes from the inner peripheral end of the mounting bracket main body 3 in the vicinity of the screw receiving portion 5. Such locking piece 6
Are located on both sides in the circumferential direction of the screw receiving portions 5 at both ends.
You. The mounting bracket body 3 is formed so that its inner peripheral edge 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. . A concave groove 13 is formed in the surface of the mounting bracket main body 3 along the longitudinal direction, and the concave groove 13 improves the bending strength of the mounting bracket main body 3.

The screw receiving portion 5 is formed by protruding a fixing piece 9 inwardly from the inner peripheral edges of both ends of the mounting bracket main body 3 and providing a screw hole 8 in the fixing piece 9. This screw hole 8
A mounting screw 4 protruding from the round wiring device A is screwed into the front end of the wiring device A, and a tip of the mounting screw 4 has an inclined surface for guiding that becomes thinner 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 screwing into the screw hole 8, the screw holes 8 are easily traversed by the inclined surfaces 10 and 11, and the screwing operation can be performed quickly without trouble.

The locking piece 6 is provided with a projecting piece 6a integrally protruding from the inner peripheral end of the mounting bracket body 3 so as to be positioned on both sides of the fixing piece 9, and the tip of the projecting piece 6a is bent. It is formed by that. A round wiring device A installed in a device mounting hole 2 drilled in the wall panel 1 with a round 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 has an opening 15 substantially at the center.
Are formed. On both sides on the back surface of the plate frame 14, legs 16 each having a U-shaped cross section are integrally formed so as to protrude therefrom.
The leg 16 is inserted through the round instrument mounting hole 2 formed in the hole. The mounting screw 4 is inserted into the insertion hole 17 and the leg 16 of the plate frame 14.
Here, in the illustrated embodiment, the leg 16 is provided on the plate frame 14, but the leg 1
6 does not need to be provided.

Locking claws 19 are integrally formed at four corners of a middle frame 18 which is removably 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 are formed, and the opening 15 of the plate frame 14 is formed.
The inner frame 18 is disposed in the inside, and the locking claw 19 is inserted and locked in the locking recess 20 so that the middle frame 18 is detachably attached to the plate frame 14.

A switch 21 is provided on the middle frame 18. A pair of locking projections 22 protruding from both sides of the switch 21 are inserted into 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 is large enough to mount two switches 21, but in the illustrated embodiment, one switch 21 is shown. 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 sets of locking holes 23 are formed on both sides, and two switches 21 are provided. It can be installed. Switch 21
When two pieces are mounted and when one piece is mounted, the middle frame 18 is used.
The inner locking hole 2 for pitch adjustment
3 is longer than the outer one.

A metal fireproof 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. Also,
A circular hole 18 is formed around the refractory panel 24 to allow the mounting screw 4 to escape. Claws 28 are formed at four positions on the periphery of the refractory panel 24 so as to be inserted and locked in the holes 27 of the plate frame 14.

An operation handle 29 detachably mounted on the upper surface of the switch 21 is formed in a disc shape, and an operation mark 30 for pushing operation with a fingertip is formed on one end of the handle 29, A display window 31 is formed on the other end of the handle 29. The operation mark 30 is formed by providing a circular concave portion 30a. A display unit 32 for lighting and displaying is provided on the upper surface of the switch 21, and a lens 33 for condensing the light of the display and transmitting the light to the display window 31 is attached to the lower surface of the handle 29.

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

The switch 21 can be fixed to the plate frame 14 by assembling the switch 21 to the middle frame 18 and mounting the middle frame 18 to the plate frame 14. The claws 28 are formed by bending at four places on the outer peripheral portion of the fireproof panel 24, and the outer surfaces of the claws 28 are formed by cutting and raising the claws. Therefore, when the refractory panel 24 is mounted on the front surface of the plate frame 14 and the claws 28 are inserted into the holes 27,
The refractory panel 24 can be securely fixed to the plate frame 14 by engaging with the inner surface of the panel 7. Further, a decorative frame 35 is provided on the outer peripheral portion of the fireproof panel 24.
Square hole 3 for escape for inserting the locking claw 36
9 are formed in four places. Therefore, the decorative frame 35 can be fixed to the plate frame 14 without disturbing the fireproof panel 24. Further, a square hole 25 is formed in the center of the refractory panel 24 as described above, so that the front surface of the switch 21 is exposed from the hole 25 to facilitate operation. Further, the shape of the hole 25 can be processed according to the shape of the instrument used. A notch 101 through which a tongue piece 7 protruding from the mounting bracket main body 3 attached to the appliance mounting hole 2 is inserted in the outer peripheral edge of the fireproof panel 24 so as to communicate with the hole 39. I have. The notch 10 is also provided in the plate frame 14.
0 is provided.

When the round wiring device A is installed in the round device mounting hole 2 formed in the wall panel 1 by using the round wiring device mounting bracket, first, FIG.
As shown in (a), the tongue piece 7 is bent about 90 ° to the surface side of the mounting bracket body 3 and the mounting bracket body 3 is bent.
Is inserted into the instrument mounting hole 2, and as shown in FIG. 4 (b), the locking piece 6 abuts on the inner peripheral surface of the opening of the instrument mounting hole 2, and the tongue piece 7 is shown in FIG. 4 (c). 10 more
The base of the tongue piece 7 is bent by about 20 ° to abut on the opening edge on the front side of the instrument mounting hole 2, thereby preventing the mounting bracket main body 3 from dropping to the back side of the wall panel 1. The mounting bracket 3 is temporarily fixed in a state where it is positioned in the mounting hole 2, and then, as shown in FIG.
The plate frame 14 is fitted together with the switch 21 into the fixture mounting hole 2 so as to pass through the notch 100 provided in the mounting frame 4, and the mounting screw 4 is screwed from the surface of the plate frame 14 into the screw hole 8 of the mounting bracket body 3. And the plate frame 14 is connected and fixed to the mounting bracket 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, and the round wiring device A is set in the device mounting hole 2.

FIGS. 7 and 8 show another embodiment. In this embodiment, the tongue piece 7 projecting from the inner peripheral end of the mounting bracket body 3 is inclined. The tip of the mounting member 7 is close to the end of the mounting member main body 3, so that when the mounting member main body 3 with the tongue piece 7 is formed by punching, material loss can be reduced. That is, FIG.
The metal plate to be stamped out when formed outward as shown by the solid line is a tongue arranged in an inclined state as shown by the broken line in FIG. It is necessary to use a metal plate having a larger area only in the shaded portion in FIG. 7 than in the case of the piece 7, which causes material loss. However, it is necessary that the tongue piece 7 is arranged in an inclined state. In FIG. 7, the shaded portion in FIG. 7 is not required, and material loss can be eliminated. In use, the tongue piece 7 is used by being bent as shown by a solid line.

FIG. 9 shows still another embodiment. In this embodiment, a reinforcing piece 12 detachable from the tip of a tongue piece 7 protruding from the inner peripheral end of the mounting bracket body 3. And the tip of the reinforcing piece 12 is attached to the mounting bracket body 3.
To the tongue piece 7 during transport and before construction.
Can be prevented from being deformed. This device is used in a state where the reinforcing piece 12 is cut and the tongue piece 7 is bent and raised at the time of use. A thin separating line 12a is provided at the end of the reinforcing piece 12, so that the reinforcing piece 12 can be easily separated.

FIGS. 10 and 11 show still another embodiment. In this embodiment, the mounting bracket body 3 is provided.
The tongue pieces 7 are provided so as to project from two locations on the inner peripheral end of the mounting bracket 2, so that the mounting bracket 3 can be temporarily fixed to the mounting hole 2. That is, both tongue pieces 7 are bent toward the surface side of the instrument mounting hole 2 and the base end of the tongue piece 7 is engaged with the opening edge on the surface side of the instrument mounting hole 2 so as to protrude from two places. The base end of the tongue piece 7 is locked to the opening edge on the surface side of the instrument mounting hole 2, so that the mounting metal body 3 can be temporarily fixed to the instrument mounting hole 2 reliably. Has become.

In the one shown in FIG. 10, the mounting bracket body 3
A tongue piece 7 of the book projects in the same direction. In the configuration shown in FIG. 11, one end of the mounting bracket body 3 is extended, and a tongue piece 7 is protruded inward from the inner peripheral edge of the extended end. Of the tongue 7 project outward from a substantially central portion of the inner peripheral edge of the mounting bracket body 3, and the tongue 7 is bent so that the base end of the tongue 7 is attached to the instrument mounting hole. 2, the base end of the tongue piece 7 is locked to the opening edge of the instrument mounting hole 2 at a position facing vertically and the temporary fixing to the instrument mounting hole 2 is further improved. This is done reliably.

[0026]

As described above, according to the present invention, a mounting bracket for holding a round wiring device installed in a round device mounting hole formed in a wall panel is provided on the back side of the device mounting hole. a fitting main body for mounting the semicircular arc which is disposed along the opening edge,
A 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 is provided with a screw receiving portion that is screwed through the device mounting hole. Therefore, the mounting screw protruded from the round wiring device is screwed into the screw receiving portion of the mounting bracket body and tightened, so that the round wiring device and the mounting bracket body are mounted on the wall panel with the mounting device. The round wiring device can be mounted in the device mounting hole by sandwiching the opening edge of the hole, and the device is formed in the wall panel while being adapted to the wall panel of various thickness dimensions by tightening the mounting screw. The round wiring device can be mounted in the mounting hole. In addition, the mounting bracket body to be brought into contact with the opening edge on the back side of the instrument mounting hole is formed in a semi-arc shape, and because it is in contact with almost half of the opening edge, a round wiring with high mounting strength is provided. The device can be mounted on a wall.
In addition, the fixture mounting holes protruding from the mounting
The locking piece that is locked to the inner peripheral surface of the opening and the mounting
A bendable tongue protruding partially from a part of the inner peripheral end
The mounting bracket body is
Insert the locking piece into the fixture mounting hole while abutting the back side opening edge.
On the inner surface of the opening of the
Bend the base of the tongue to the opening edge on the front side of the instrument mounting hole
By locking, the mounting bracket is
It can temporarily fix the body in the instrument mounting hole.
You. In addition, both ends of the mounting bracket with a semicircular arc
On both sides in the circumferential direction of the screw receiving parts at both ends.
Locks along the inner peripheral surface of the round instrument mounting hole
Since a locking piece was provided, a semicircular arc was inserted into the round instrument mounting hole.
The circumferential direction of the screw receiving part when the main body
Locking pieces on both sides of the
And a semi-circular arc in the round instrument mounting hole.
The mounting bracket body is parallel to the wall panel surface
Can be positioned so that it does not move in
Does not move in the thickness direction of the wall panel
The mounting bracket can be attached to the fixture just by temporarily fixing it.
It can be mounted so that it does not move in the hole and simply folds
Easy to temporarily fix by projecting a bendable tongue piece
It is possible to adopt a simple structure.

[0027]

Further, a fixing piece having a screw hole into which a mounting screw is screwed is protruded from an inner peripheral end of the mounting bracket main body to form a screw receiving portion. If an inclined surface for guiding is provided at the opening edge of the screw hole corresponding to the inclined surface for guiding to become thin, the mounting screw is screwed into the screw hole of the screw receiving portion, and the mounting bracket body and When connecting to a round wiring device, the screw hole can be easily explored, and the screwing operation can be performed quickly without trouble. In particular, even if the screw receiving portion cannot be visually confirmed and its position cannot be visually confirmed in a state where the round wiring device is provided, the connection and fixing by the mounting screws can be quickly performed without trouble.

Further, when the tip of the tongue piece is made to approach the end of the mounting bracket body so that the tongue piece protruding from the inner peripheral end of the mounting bracket body is inclined, the tongue piece is formed. It is possible to use a small plate material when punching a plate material to form the mounting bracket body without protruding greatly outward from the mounting bracket body, and to reduce component loss. Also, it is possible to prevent the tongue from being deformed when painting or carrying.

Further, a reinforcing piece that can be cut off from the tip of a tongue piece protruding from the inner peripheral end of the mounting bracket main body is protruded,
If the tip of the reinforcing piece is connected to the mounting bracket body, the tongue piece can be prevented from being deformed during transportation or before construction. Also, if the tongues are respectively protruded from two places on the inner peripheral end of the mounting bracket main body, both tongues are bent toward the surface side of the instrument mounting hole, and the base end of the tongue is attached to the instrument. By locking to the opening edge on the surface side of the hole, the base end of the tongue protruding from two places is locked to the opening edge on the surface side of the instrument mounting hole, and mounting to the instrument mounting hole The temporary fixing of the metal fitting body can be reliably performed.

[Brief description of the drawings]

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

FIG. 2 is a front view of the metal fitting for a round wiring device of the above.

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

FIGS. 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 mounting screws showing another embodiment.

FIG. 8 is a front view of the metal fitting for a round wiring device of the above.

FIG. 9 is a plan view of a fitting for mounting a round wiring device according to still another embodiment.

FIG. 10 is a plan view of a fitting for mounting a round wiring device according to still another embodiment.

FIG. 11 is a plan view of a fitting for attaching a round wiring device, 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 Inclined surface 11 Inclined surface 12 Reinforcement piece

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-4-183214 (JP, A) JP-A-4-193012 (JP, A) JP-A-4-76113 (JP, U) (58) Investigated Field (Int. Cl. ⁷ , DB name) H02G 3/00

Claims (5)

(57) [Claims] 1. A mounting bracket for holding a round wiring device installed in a round device mounting hole drilled in a wall panel is arranged along an opening edge on the back surface side of the device mounting hole. Half
Screw and circular arc-shaped mounting bracket body, the mounting screw which projects from the round wire instrument so that the peripheral edge is in contact with the surface side of the opening edge of the instrument attachment hole is screwed through the instrument attachment hole With a receiving part , the screw receiving part has a semi-circular mounting
It is provided at the position of both ends of the bracket
The inner circumference of the opening of the round fixture mounting hole on each side in the circumferential direction of the part
A locking piece that locks along the surface is provided.
A tongue that can be partially bent from a part of the inner peripheral edge of the body projects
A metal fitting for a round wiring device, characterized in that it has been manufactured. 2. A mounting screw from an inner peripheral end of a mounting bracket main body.
A fixing piece with a screw hole into which the
Formed at the end of the mounting screw.
Opening edge of the above screw hole corresponding to the inclined surface for guide
2. The metal fitting for mounting a round wiring device according to claim 1, further comprising a guide inclined surface . 3. The mounting bracket protrudes from an inner peripheral end of the mounting bracket body.
Attach the tip of the tongue so that the tongue is inclined
2. The metal fitting for a round wiring device according to claim 1 , wherein the metal fitting is arranged close to an end of the wiring device. 4. A mounting member protruding from an inner peripheral end of a mounting bracket main body.
Reinforcement pieces that can be separated from the tip of the tongue piece
Characterized by connecting the tip of the piece to the mounting bracket body
The metal fitting for mounting a round wiring device according to claim 1 . 5. From two places on the inner peripheral end of the mounting bracket main body.
The tongue piece is provided by projecting from each other.
The fitting for mounting the round wiring device as described.