JP3044107B2 - 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 wiring device for arranging devices such as switches and outlets on a construction surface.

[0002]

2. Description of the Related Art A round wiring device has recently been proposed because a hole drilled on a construction surface is changed from a square shape to a round shape to facilitate the drilling operation.

[0003]

When a fireproof panel is added to such a round wiring device, how to fix the fireproof panel has been a problem. The present invention has been made in view of the above points, and has as its object to provide a wiring device for forming a fireproof panel that enables the configuration of a round wiring device.

[0004]

According to the first aspect of the present invention, there is provided:
Attach a switch, outlet, or other device to the side
That opening and Help rate frame is fixed to the erecting surface having the substantially center of a detachably mounted Ru of粧plate in front of the plate frame to expose the front surface of the device fitting, decoration plate and the plate
A fireproof panel disposed between the frame and the fireproof panel.
Claws for fixing to the plate frame outside peripheral portion of the Le form a plurality, in the central portion of the refractory panels drilled holes for exposing the front face of the instrument, fixed to the plate frame of the decorative plate A hole is formed in the fireproof panel, and a protrusion is provided from the inner edge of the hole through which the screw for fixing the plate frame is inserted. According to the second aspect of the invention,
A round plate with an opening in the center and fixed to the construction surface
Removably attached to the frame and the opening of the plate frame, inside
While detachably installing devices such as switches and outlets
Exposing the frame and the front of the fixture to the front of the plate frame
Makeup plate to be attached to the present, and play with makeup plate
And a fireproof panel disposed between the
The flannel is formed in a disk shape and the outer periphery is
Form a plurality of nails for fixing, and the central part of the fireproof panel
A hole to expose the front of the instrument
Release holes for locking claws for fixing the plate to the plate frame
Screws for fixing the plate frame while drilling in the fireproof panel
Is provided with a convex portion from the inner edge of the hole through which is inserted.

According to a third aspect of the present invention , a holding portion for detachably mounting a standardized wiring device is formed in a middle frame, and a jig for removing the device is provided on a fireproof panel portion on the front side of the holding portion. It has a through hole for insertion. Furthermore, refractory holes for claimed in claim 4, to form a stepped portion projecting to the central portion of the refractory panels according to the type of instrument, the relief of the locking pawl or projection of the decorative cover in the case of an instrument to an electrical outlet It is formed at the step of the panel.

According to a fifth aspect of the present invention, a hole for screw insertion when the plate frame is directly attached to the construction surface is formed in the fireproof panel, and a convex portion for receiving the head of the screw from an inner edge of the hole is formed. ing.

[0007]

According to the first or second aspect of the present invention, the nail can be fixed to the plate frame by the claw formed on the outer peripheral portion of the fireproof panel, and the appliance can be fixed by the hole formed in the center of the fireproof panel. The front part can be exposed and only holes are drilled, so it can be arbitrarily drilled according to the shape of the appliance, it is versatile, and the decorative plate is locked by the relief hole drilled in the fireproof panel The nail can be inserted into the plate frame to lock it, and the decorative plate can be fixed to the plate frame.In addition, by providing a convex portion from the inner edge of the hole, the head of the screw inserted into the hole can be The single fireproof panel can be prevented from falling off by being hooked on the projection.

According to the third aspect of the present invention, when removing the device mounted on the middle frame, the device can be removed by inserting a jig through a through hole formed in the fireproof panel. The instrument can be removed without the need. Furthermore, in claim 4 , fixing of the device according to the type of the device.
Even if the heights of the parts are different, the plate frame and the decorative plate can be shared by the stepped part with the center part of the fireproof panel raised, and the relief part of the decorative cover can be used by the relief hole formed in the stepped part. The protrusion can be released, and the decorative cover can be fixed to the inner frame.

According to the fifth aspect of the present invention, even if a molded part such as a decorative plate or a plate frame is burned in the event of a fire, the fireproof panel is fixed to the construction surface by screws, so that the fixture mounting hole on the construction surface is provided. Is not exposed, and the spread of fire due to the flame can be prevented.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view of the whole, in which a plate frame 1 disposed on the front side of a construction surface is formed in a round shape, and an opening 2 is formed substantially in the center. On both sides of the back surface of the plate frame 1, legs 3 each having a U-shaped cross section for inserting holes in the construction surface are integrally provided.

A screw 5 with a screw 4 made of synthetic resin at its base is provided through an insertion hole 6 of the plate frame 1, and a scissor fitting 7 is screwed to the tip of the screw 5. By tightening the screws 5 arranged inside the legs 3, the construction material is sandwiched between the periphery of the back surface of the plate frame 1 and the scissors 7 so that the plate frame 1 is disposed on the construction surface. Also, plate frame 1
Screw holes 8 for screwing directly to the construction surface are drilled on both sides of.

Inside the opening 2 of the plate frame 1, a middle frame 9 is provided.
Instruments such as switches and outlets through the Ru is detachably attached. Locking claws 10 are integrally formed on both sides of both sides of the middle frame 9, and locking recesses 11 into which the locking claws 10 are inserted and locked are formed inside the opening 2 of the plate frame 1. Is formed. A pair of locking holes 1 are formed in side pieces 12 on both sides of the middle frame 9.
3 are perforated. The holding portion is constituted by the locking hole 13.

A switch 14 is provided inside the middle frame 9. A pair of locking projections 15 protruding from both sides of the switch 14 are inserted and locked into the locking holes 13 of the middle frame 9. Thus, the switch 14 is detachably mounted on the middle frame 9. The middle frame 9 is large enough to mount two switches 14, but in the case of FIG. 1, one switch 14 is mounted. In this case, the locking projections 15 of the switch 14 are locked in the two locking holes 13 inside the middle frame 9.

The middle frame 9 is used when the instrument is a piano-operated push button switch 14, and is provided with a locking hole 1
3 is provided with two sets on both sides so that two switches 14 can be mounted. In order to share the middle frame 9 between the case where two switches 14 are mounted and the case where one switch 14 is mounted, the width of the inner locking hole 13 is made longer than that of the outside in order to adjust the pitch.

A metal fireproof panel 16 is mounted on the front surface of the plate frame 1, and a hole 17 for exposing the switch 14 is formed in the center. In the periphery, a circular hole 18 for screw 5 escape and a screw hole 8
A semicircular hole 19 for escape is formed. Claws 21 to be inserted and locked into holes 20 of the plate frame 1 are formed at four places on the periphery of the refractory panel 16.

An operation handle 22 detachably mounted on the upper surface of the switch 14 is formed in a round shape, and a recess 23 for pushing operation with a fingertip is formed on one end side.
A display window 24 is formed at the other end. Switch 14
A display unit 25 for illuminated display is provided on the upper surface of the camera.

The decoration plate 28 bored slightly larger opening 27 than the handle 22 on the inside, forms have been formed in a round shape frame shape, as shown in FIG. 2, the locking claw 29 on the back surface is integrally Have been. The locking claw 29 is inserted and locked in a locking recess 30 formed in the plate frame 1 so that the decorative plate 28 is detachably mounted on the plate frame 1.

FIG. 2 shows the back of the decorative plate 28.
As shown in FIG. 3, a guide rib 31 is formed around the rear surface of the decorative plate 28 at the time of fitting with the plate frame 1.
Further, a rib 32 for hiding the inside is integrally formed along the opening 27. For assembly, the switch 14 is attached to the middle frame 9
, And the device such as the switch 14 can be fixed to the plate frame 1 in a procedure of mounting the middle frame 9 to the plate frame 1.

The switch 14 has a structure as shown in FIG. That is, a push button 33 that can be moved in the vertical direction by being pushed by the handle 22, a spring 34 that urges the push button 33 upward, and a laterally movably mounted on the lower surface of the push button 33 that is urged by the spring 34. And a reversing handle 36 that reverses when the slider 35 moves downward.

When the slider 35 moves downward, the engaging projection 37 of the reversing handle 36 is urged to rotate the reversing handle 36, and the rotation of the reversing handle 36 causes the engaging projection 37 to engage with the slider 35. By pressing the joint 38, the slider 35 is moved in the lateral direction. When the reversing handle 36 rotates and reverses, the open / close plate 40 connected by the coil spring 39 reverses and switches the contact.

Next, the mounting structure and operation of the handle 22 will be described. 3 to 5, a fulcrum rib 41 having elasticity at the time of instrument operation is provided on one end side of the lower surface of the handle 22.
A pair of stopper ribs 42 having elasticity at the time of operation return are provided on the other end side. A rib 43 serving as a stopper during operation is provided outside the stopper rib 42.
An action point rib 44 for pressing the protrusion 45 of the push button 33 of the switch 14 is integrally provided at the center of the lower surface of the handle 22.

As shown in FIGS. 1 and 3, a recess 46 is formed at one end of the upper surface of the switch 14 for inserting and supporting the fulcrum rib 41 of the handle 22, and a stopper rib 42 is formed at the other end. Is formed therein. Here, the handle 22 is connected to the edge 4 of the stopper rib 42.
2a is locked to the inner corner of the concave portion 47 to prevent the handle 22 from coming off.

When the depression 23 of the handle 22 is pressed with a fingertip, as shown in FIGS. 3 and 5, the rotation is made about the fulcrum rib 41 as a fulcrum, and the action point rib 44 is pushed by the push button 3 of the switch 14.
The switch 14 is opened and closed as described above by pressing the third protrusion 45. When the pressing operation of the handle 22 is stopped, the handle 22 returns, and the contact keeps its state. When the handle 22 is pressed again, the push button 33 is pressed and the contact is reversed and returned.

Next, the fireproof panel 16 which is the gist of the present invention will be described.
FIG. 6 shows an enlarged perspective view of FIG. As shown in FIG. 6, the claws 21 are formed by bending the claws 21 at four positions on the outer peripheral portion of the fireproof panel 16,
The outer surface of the claw 21 is formed by cutting and raising the claw portion 54. Therefore, when the refractory panel 16 is mounted on the front surface of the plate frame 1 and the claws 21 are inserted into the holes 20, the claws 54 are locked to the inner surface of the holes 20, so that the refractory panels 16 are securely attached to the plate frame 1. Can be fixed.

On the outer peripheral portion of the fireproof panel 16, there are formed four square holes 51 for escape, into which the locking claws 29 of the decorative plate 28 are inserted. Therefore,
The decorative plate 28 can be used without the fire panel 16 being in the way.
Can be fixed to the plate frame 1. Further, a square hole 17 is drilled in the center of the fireproof panel 16 to expose the surface or the front part of the device such as the switch 14.
Operation is easy. Further, the shape of the hole 17 can be processed according to the shape of the instrument used.

The size of the hole 18 through which the screw 5 is inserted is larger than the head of the screw 5, so that the fireproof panel 16
There is a risk that the single product will fall off. Therefore, the protruding portions 52 are protruded inward from both sides of the inner edge of the hole 18. Since the distance between the two convex portions 52 is smaller than the head of the screw 5, the head of the screw 5 is caught on the convex portion 52 and
6 Single products can be prevented from falling off.

On the other hand, when the plate frame 1 is directly attached to the wall surface, the holes 19 of the fireproof panel 16 through which screws are inserted are also provided.
The projection 53 similar to the above is formed. Therefore, also in this case, the single fireproof panel 16 can be prevented from falling off. Second Embodiment FIG. 7 shows a second embodiment. In this embodiment, an outlet 55 is used as a device instead of a switch, and the locking projection 15 is formed on an assembly frame 56 for assembling and connecting the cover 55a and the body 55b.

An elastic piece is provided on one side piece 12 of the middle frame 9 so that one locking projection 15 of the outlet 55 can be freely locked, and the other locking projection 15 is connected to a pair of the other side piece 12. Is inserted and locked in the locking hole 13. This configuration is the same as the structure of a general mounting frame for a wiring device. When the outlet 55 is removed, the outlet 55 can be removed by bending the elastic piece outward at the tip of the driver.

The refractory panel 16 is different from the previous embodiment in that the central portion is stepped from the periphery, and the other structure is the same as that of the previous embodiment. Further, a through hole 57 for inserting the tip of the driver is formed in a step portion of the fireproof panel 16. Further, a square hole 58 is formed in the center of the decorative cover 59 so that the insertion hole of the outlet 55 is exposed.

Therefore, in this embodiment, the tip of the driver is inserted into the through hole 57 and the elastic piece of the middle frame 9 is bent, so that the fireproof panel 16 can be removed without removing the fireproof panel 16.
5 can be removed. FIG. 8 is an enlarged perspective view of the fireproof panel 16. As described above, the fireproof panel 16 has a stepped portion 60 formed at the center of the fireproof panel 16, and a hole for exposing an appliance is formed at the center of the stepped portion 60. 17 is drilled. This hole 17 has a size in the case where one appliance, for example, one outlet 55 as shown in FIG.
Becomes

Here, outlets, switches, and the like have different shapes depending on the series, and the specification of the fixing portion of the instrument of the middle frame 9 is different. Since the height of the fixing portion is different, the step portion 60 is provided on the fireproof panel 16. Unless the central portion of the refractory panel 16 is raised by the stepped portion 60 and the insertion portion of the middle frame 9 is not provided, the plate frame 1 and the decorative plate 28 cannot be shared, and the total height of the switch and the outlet series is greatly different. Would.

FIG. 9 shows the decorative cover 59, in which the center hole 5 is provided.
The size indicated by the solid line 8 indicates the case where one outlet 55 is provided, and the one-dot chain line indicates the case where two outlets 55 are provided. On the back surface of the decorative cover 59, six projections 61 and four locking portions 62 are integrally formed. The locking portion 62 has elasticity, and engages with the engaging recesses 63 (see FIG. 7) on both sides of the middle frame 9 so that the decorative cover 59 is detachably attached to the middle frame 9. In addition, the protrusion 61 abuts on the front surface of the middle frame 9 to prevent the decorative cover 59 from rattling.

When the decorative cover 59 is attached to the middle frame 9, the escape of the locking portion 62 and the projection 61 is performed by the fireproof panel 16.
Is formed. That is, the locking portion 6 of the decorative cover 59
Two relief holes 64 are formed at the edge of the step portion 60, and three projection holes 65 are formed on both sides of the upper surface of the step portion 60, respectively. By the way, a tongue-shaped convex portion 53 is formed in the hole 19 of the fireproof panel 16 shown in FIG. 6 and FIG. 8. Receiving the screw head, fireproof panel 1
6 can be fixed to the plate frame 1.

Therefore, even if a molded part such as a decorative plate or a plate frame is burned in the event of a fire, the fireproof panel is fixed to the construction surface with screws, so that the mounting holes on the construction surface are not exposed. Flame spread can be prevented.

[0035]

According to the first aspect of the present invention, as described above ,
And Help rate frame is fixed to the erecting surface having a substantially central open <br/> opening for removably mounting a device, such as switches and outlets,
Vessel members and the front to detachably mounted Ru of粧plates of the plate frame to expose the front surface of the decorative plate and the plate frame and
And a fireproof panel disposed between the fireproof panels.
A plurality of claws are formed on the outer periphery to fix the plate to the plate frame, and a hole is formed in the center of the fireproof panel to expose the front surface of the appliance. While drilling the escape hole of the stop nail in the fireproof panel,
Since the convex portion is provided from the inner edge of the hole through which the screw for fixing the plate frame is inserted , the invention of claim 2 is substantially in the middle.
Round plate frame that has an opening in the center and is fixed to the construction surface
To the opening of the plate frame so that it can be
Medium frame for detachable mounting of devices such as switches and outlets
And the front of the fixture is exposed and can be freely attached to and detached from the front of the plate frame
Makeup plate to be attached to, and makeup plate and plate
A fireproof panel disposed between the frame and the fireproof panel.
The plate is formed in a disk shape, and is fixed to the plate frame on the outer periphery.
Formed in the center of the fireproof panel.
Drills a hole to expose the front of the
The escape hole of the locking claw for fixing to the plate frame of the rate is resistant.
Drill it into the fire panel and screw the plate frame
Because it is provided with a convex part from the inner edge of the hole to be inserted,
A plurality of claw portions formed on the outer peripheral portion of the refractory panels can fixed to the plate frame, also it can expose the front surface of the instrument by the hole bored in the central portion of the refractory panels, moreover, only holes Can be arbitrarily drilled according to the shape of the appliance, it is versatile, and the escape hole drilled in the fireproof panel can be inserted into the locking claw of the decorative plate and locked to the plate frame, and the decorative plate Can be fixed to the plate frame, and by providing a convex from the inner edge of the hole, the head of the screw inserted into the hole is hooked on the convex,
This has the effect of preventing a single fireproof panel from falling off.

According to a third aspect of the present invention , a holding portion for detachably mounting a standardized wiring device is formed in the middle frame, and a jig for removing the device is provided on a portion of the fireproof panel on the front side of the holding portion. Since the through hole for insertion is perforated, when removing the instrument attached to the inner frame, it is possible to insert the jig through the through hole drilled in the fireproof panel and remove the instrument, This has the effect that the appliance can be removed without removing the fireproof panel.

Furthermore, in claim 4, the refractory panels according to the type of instrument central stepped portion projecting to the formed, for relief of the locking pawl or projection of the decorative cover in the case of an instrument to an electrical outlet Because the holes are formed in the steps of the fireproof panel, even if the height of the fixing part of the equipment differs according to the type of equipment, the stepped part with the center of the fireproof panel raised, You can share a decorative plate,
The escape hole formed in the step portion allows the engaging portion and the protrusion of the decorative cover to be released, and the decorative cover can be fixed to the inner frame.

According to a fifth aspect of the present invention, a hole for screw insertion when the plate frame is directly attached to the construction surface is formed in the fireproof panel, and a convex portion for receiving the head of the screw from an inner edge of the hole is formed. The decorative plate when a fire occurs,
Even if a molded part such as a plate frame is burned, the fireproof panel is fixed to the construction surface with screws, so that the fixture mounting holes on the construction surface are not exposed, and fire spread by flame can be prevented.

[Brief description of the drawings]

FIG. 1 is an overall exploded perspective view of an embodiment of the present invention.

FIG. 2 is a rear view of the decorative plate according to the first embodiment.

FIG. 3 is a sectional view of the switch.

FIG. 4 is a sectional view of the handle.

FIG. 5 is an overall sectional view of the same.

FIG. 6 is an enlarged perspective view of the refractory panel of the above.

FIG. 7 is an exploded perspective view of the second embodiment.

FIG. 8 is an enlarged perspective view of the fireproof panel.

FIGS. 9A to 9C are front views of the decorative cover according to the first embodiment;
It is a side view and a rear view.

[Explanation of symbols]

 1 Plate Frame 2 Opening 9 Middle Frame 14 Switch 16 Fireproof Panel 17 Hole 18 Hole 19 Hole 21 Claw 28 Decorative Plate 29 Locking Claw 51 Hole 52 Convex 53 Convex 54 Claw 55 Outlet 57 Outlet 57 Through Hole 60 Step 61 Protrusion Part 62 Locking part

────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Shigenori Kato 2856 Shiratsuka-cho, Tsu-shi, Mie Asahi Denki Kogyo Co., Ltd. (56) References JP-A-1-103113 (JP, A) JP-A-1-114315 (JP, A) Shokai Sho 53-55797 (JP, U) Shokai Hei 1-64911 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) H02G 3/02

Claims (5)

(57) [Claims] 1. A device such as a switch or an outlet is mounted inside.
And Help rate frame is fixed to the erecting surface having a substantially central opening for detachably mounting a detachably mounted Ru of粧plate in front of the plate frame to expose the front surface of the device fitting, cosmetic pre
With a fireproof panel arranged between the plate and the plate frame.
For example, a claw portion for fixing to the plate frame outside periphery of the refractory panels form a plurality, in the central portion of the refractory panels drilled holes for exposing the front face of the instrument, the decoration plate A wiring device, wherein a release hole of a locking claw for fixing to a plate frame is formed in a fireproof panel, and a projection is provided from an inner edge of a hole through which a screw for fixing a plate frame is inserted. 2. An opening is provided at substantially the center and is fixed to a construction surface.
Removable round plate frame and opening of plate frame
Attached and detached devices such as switches and outlets inside
Plate frame that exposes the middle frame to be installed and the front of the instrument
A makeup plate that is detachably attached to the front of the
A fireproof panel installed between the plate and the plate frame
The fireproof panel is formed in a disk shape, and the outer peripheral portion is formed.
Formed a plurality of claws for fixing to the plate frame,
A hole in the center of the panel to expose the front of the instrument
For fixing the decorative plate to the plate frame
Drill holes for nails in the fireproof panel and plate
Protrusion is provided from the inner edge of the hole through which the frame fixing screw is inserted
A wiring device , characterized in that: 3. A standardized wiring device is detachably mounted.
The holding part to be attached is formed on the middle frame, and the front side of this holding part has
A through hole for inserting the jig
The wiring device according to claim 2 , wherein the wiring device is provided. 4. At the center of the fireproof panel according to the type of equipment
When a projecting step is formed and the appliance is used as an outlet
The holes for escape of locking claws and protrusions on the decorative cover of the
3. The method according to claim 1 , wherein the step is formed at a step portion of the handle.
The wiring device described. 5. When the plate frame is directly attached to the construction surface.
Holes in the fire-resistant panel, and from the inner edge of these holes
A protrusion characterized by forming a convex portion for receiving the head of the screw.
3. The wiring device according to claim 1 or 2.