JP3261216B2 - 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 drilling work. In this type of round wiring device, there is a round plate frame having an opening in the approximate center and fixed to the construction surface, and is detachably attached to the opening of the plate frame, and a switch and an outlet are provided inside. And a decorative cover having a hole for exposing the front surface of a switch or a socket for a switch operation detachably mounted on the front of the switch, and a handle or a decorative cover. It consisted of a decorative plate placed inside and attached to the plate.

[0003]

In the above-mentioned round wiring device, as shown in FIGS. 18 and 19, the number of wiring devices that can be mounted on one round wiring device 69 is a maximum of two. The three switches shown in FIG. 18 and the double outlet 52 and the ground terminal 5 shown in FIG.
In places where wiring devices are concentrated, as in the case of combination 3, the round wiring devices 69 must be arranged side by side, and there is a problem that the work is troublesome and the appearance is deteriorated. .

An object of the present invention is to solve the above-mentioned problems and to provide a wiring device which can be installed on a construction surface with good appearance of two to four wiring devices. is there.

[0005]

According to a first aspect of the present invention, there is provided a plate frame which has an opening and is fixed to a construction surface, and which is detachably attached to the opening of the plate frame. A plate frame including a middle frame on the inside where two wiring devices such as switches and outlets can be detachably mounted, and a decorative plate that exposes the front surface of the device and is detachably mounted on the front surface of the plate frame. Is formed in an oval shape, and two openings are provided side by side in the longitudinal direction, and the decorative plate is formed in an oval shape.
It is formed in a round shape, each between the decorative plate and the plate frame
On the outer periphery of the two fireproof panels provided corresponding to the middle frame
Claws for fixing to the plate frame
This claw is inserted into the front of the plate frame
With a hole to be stopped and two fireproof panels in front of the plate frame
The edge of the adjacent fire panel when secured to the surface
To each other across the line connecting the centers of the two fireproof panels.
The end that is on the different side and where the nail is not formed
It is characterized by being at least notched .

According to a second aspect of the present invention, in the first aspect of the present invention, the engaging member is inserted and locked in a locking recess formed in the plate frame.
The pawl is provided on the back surface of the decorative plate .

[0007] The third aspect of the present invention is the first or second aspect.
In the invention according to the invention, the longitudinal direction of the device
Match the longitudinal direction of the rate frame with the middle frame on the plate frame.
It is characterized by being attached . According to a fourth aspect of the present invention, in the first to third aspects of the present invention, a round shape for operating a switch is provided.
Hole in the handle or near the center to expose the front of the instrument
Perforated round decorative cover to locate round opening
Are arranged in the longitudinal direction and provided on the decorative plate .

[0008] The invention of claim 5 is the invention of claims 1 to 4.
In the invention of the present invention, the protection for covering and protecting the back of the wiring device
The locking recess where the locking part of the protective cover is engaged
It is provided on the back .

[0009]

According to the construction of the first aspect of the present invention, there is provided a plate frame having an opening and fixed to the construction surface, and a wiring device such as a switch or an outlet which is detachably mounted in the opening of the plate frame. It has a middle frame that can be detachably mounted up to two, and a decorative plate that exposes the front of the device and is detachably mounted on the front of the plate frame . The plate frame is formed in an oval shape, and the two openings are elongated. The decorative plate is formed in an oval shape, and the utensil is exposed almost at the center.
Plate and plate formed in a round shape with holes
Two refractory panels arranged between the frame and each middle frame
Nails to fix to the plate frame
Form multiple at approximately equal intervals and place
Holes for insertion and locking of two claws are provided.
Fireproof panel adjacent when secured to the front of the rate frame
At the end of the line connecting the centers of the two refractory panels
The ends on the different sides of the sandwich and the claws are formed
Since at least the part that does not exist is cut out , two to four wiring devices can be arranged on the construction surface ,
Multiple claws inserted and locked into holes on the front of the plate frame on the outer periphery
By providing them at substantially equal intervals, fireproof panels can be
It can be securely fixed to the front and has two
When the fire panel is mounted on the front of the plate frame, each fireproof panel
The notched portions of the
Symmetrically positioned, so two fireproofs installed in parallel
The panel pitch can be shortened by the notch.
Can Ru.

According to the second aspect of the present invention, the plate frame
Make the locking claws inserted and locked into the perforated locking recesses
The decorative plate was placed on the back of the
It can be attached to a surface and securely fixed .

According to the third aspect of the present invention , the mounting member is mounted on the middle frame.
Make sure that the longitudinal direction of the
And the middle frame was attached to the plate frame, so two to four
Wiring devices can be arranged on the construction surface side by side in parallel . In the configuration of the invention according to claim 4, the switch operation is performed.
Exposed front of instrument in round handle or near center
The round shape that locates the round decorative cover with holes
Two openings in the longitudinal direction are arranged on the decorative plate
The handle used for conventional round wiring
Or a cosmetic cover can be used .

According to a fifth aspect of the present invention, an apparatus for wiring is provided.
The locking part of the protective cover that covers and protects the back of the device is engaged
Since the locking recess is provided on the back of the plate frame, the protective cover
Can be attached to the back of the plate frame and fixed .

[0013]

Embodiments of the present invention will be described below with reference to the drawings. (Embodiment 1) FIG. 1 is an exploded perspective view showing the whole of this embodiment. The plate frame 1 arranged in front of the construction surface is shown in FIG.
As shown in FIG. 3 and FIG. 3, two openings 2 are formed in parallel in the longitudinal direction. On both sides of each opening 2 on the back surface of the plate frame 1, a total of four legs 3 each having a U-shaped cross section are protruded, and the legs 3 are formed in holes formed in the construction surface.
Is to be inserted.

A screw 5 with a screw 4 made of synthetic resin mounted on 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 back surface of the plate frame 1 and the scissors 7 rotated so as to protrude outward and the plate frame 1 is placed on the construction surface. Attached to. Screw holes 8 for screwing directly to the construction surface are formed on both sides of the plate frame 1. In this embodiment, the construction material is sandwiched at four places by the scissors 7, and the mounting strength on the construction surface can be increased as compared with a round wiring device conventionally sandwiched at two places.

The middle frame 9 which is detachably mounted in the opening 2 of the plate frame 1 is used for a conventional round wiring device. The four corners of the middle frame 9 are shown in FIG. As described above, the locking claw 10 is integrally formed, and the locking recess 11 is formed inside the opening 2 of the plate frame 1.
The middle frame 9 is arranged in the opening 2 of the plate frame, and the locking claw 10 is inserted and locked in the locking recess 11 so that the middle frame 9 is attached to the plate frame 1.
Is detachably attached.

As shown in FIGS. 1 and 4, a switch 14 is provided inside the middle frame 9.
The switch 14 is detachably mounted on the middle frame 9 by inserting and locking a pair of locking projections 15 protruding on both sides of the middle frame 9 into the locking holes 13 of the middle frame 9. The middle frame 9 is large enough to mount two switches 14, but in the case of FIGS. 1 and 4, one switch 14 is mounted on each middle frame 9. In this case, the inner 2
The locking projections 15 of the switch 14 are locked in the three locking holes 13.

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. The width of the inner locking hole 13 is made longer than that of the outside in order to match the pitch when the middle frame 9 is shared between the case where two switches 14 are mounted and the case where one switch 14 is mounted.

On the front surface of the plate frame 1, two round fire-resistant panels 16 made of metal as shown in FIG. 5 are mounted in parallel. Square hole 17 is formed. In the periphery, a circular hole 18 for the escape of the screw 5 and a semicircular hole 19 for the escape of the screw hole 8 are formed. Fireproof panel 16
Claws 21 which are inserted into and locked in the holes 20 of the plate frame 1 are formed at four places on the peripheral edge of the plate frame 1.

Further, as shown in FIG. 6, two refractory panels 16 to be mounted in parallel are located on different sides of a line connecting substantially the centers of the respective refractory panels 16 adjacent to each other. At least parts are cut out. That is, in FIG. 6, the lower side of the right end of the refractory panel 16 located on the left side is cut out below the line connecting the substantially center, including the semicircular hole 19, while the refractory panel 16 located on the right side is cut off. The upper side of the line connecting the substantially center of the left end portion of the above is cut out including the semicircular hole 19. Therefore, as shown in FIGS. 1 and 5, when two refractory panels 16 are actually mounted on the front surface of the plate frame 1, the notches 16 a of the respective refractory panels 16 connect the above-described substantially centers to each other. Since it is located symmetrically with respect to the line, the pitch of the two refractory panels 16 mounted in parallel on the left and right can be shortened by the cutout portion 16a. In addition, the refractory panel 16 is left and right independent, and can easily cope with various combinations of appliances.

As shown in FIG. 7, an operation handle 22 detachably mounted on the front surface of the switch 14 is formed in a round shape, and a recess 23 for pushing with a fingertip is formed at one end. A display window 24 is formed at the other end. A display unit 25 for on / off display by lighting is provided on the front surface of the switch 14, and a lens 26 for condensing the light of this display and transmitting it to the display window 24 is attached to the lower surface of the handle 23.

As also shown in FIG.
Numeral 8 is formed in an oval frame shape, and two openings 27 slightly larger than the handle 23 are bored inside in parallel with the longitudinal direction. As shown in FIGS. 8A and 8B, a total of six locking claws 29 are integrally formed on the back surface. The decorative claw 29 is detachably mounted on the plate frame 1 by inserting and locking the locking claw 29 into a locking recess 30 formed in the plate frame 1.

FIG. 8 shows the back of the decorative plate 28.
As shown in (a), a rib 31 for guiding when fitted to the plate frame 1 is formed around the back surface of the decorative plate 28, and a rib 32 for hiding the inside along the opening 27 is integrated. Is formed. On the other hand, as shown in FIG. 6, four holes 66 having a square hole shape are formed in the outer peripheral portion of the fireproof panel 16 as escape holes through which the locking claws 29 of the decorative plate 28 are inserted. Therefore, the decorative plate 28 can be fixed to the plate frame 1 without the fire-resistant panel 16 interfering.

The size of the hole 18 through which the screw 5 is inserted is larger than the head of the screw 5, so that there is a possibility that the single fireproof panel 16 may fall off. Therefore, a convex portion 67 is protruded inward from both sides of the inner edge of the hole 18. Convex part 67
Since the distance between them is smaller than the head of the screw 5, the head of the screw 5 is hooked on the projection 67, so that the fireproof panel 16 alone can be prevented from falling off.

Further, a convex portion 68 similar to the above is formed in the hole 19 of the fireproof panel 16 through which screws are inserted when the plate frame 1 is directly attached to the construction surface. Also in this case, the single fireproof panel 16 can be prevented from falling off. In addition,
Assembling is performed by mounting the switch 14 on the middle frame 9 and mounting the middle frame 9 on the plate frame 1 in a direction in which the longitudinal direction of the switch 14 matches the longitudinal direction of the plate frame 1.
4 and the like can be fixed to the plate frame 1.

As shown in FIG. 9, when a glass wool plate 51, which is a heat insulating material, is attached to a wall 50 on the back side of the construction surface 49, the plate frame 1 on which the switch 14 is mounted is attached to the construction surface 49. When it is fixed, a resin protective cover 48, which is conventionally used, is detachably mounted on the back surface of the plate frame 1 to ensure insulation between the switch 14 and the glass wool plate 51.

As shown in FIGS. 10 (a) and 10 (b), the protective cover 48 has a substantially U-shaped cross section, and engages with the locking recesses 1a provided on the plate frame 1 at both ends. A pair of locking portions 48a are provided, and the protecting cover 48 is fixed to the back surface of the plate frame 1 by engaging the locking portions 48a with the locking recesses 1a as shown in FIG.

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

Here, 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 part 38, the slider 35 is moved in the lateral direction. When the reversing handle 36 rotates and reverses, the coil spring 3
The opening / closing plate 40 connected at 9 is inverted, and the contact is switched.

Next, the mounting structure and operation of the handle 22 will be described. 11 to 13, the handle 2
A pair of fulcrum ribs 41 having elasticity at the time of operating the instrument is provided on one end of the lower surface of the pair 2, and a pair of stopper ribs 42 having elasticity at the time of returning to the operation are provided on the other end. A rib 43 serving as a stopper during operation is formed outside the stopper rib 42, and an action point rib 4 for pressing the projection 45 of the push button 33 of the switch 14 is provided at the center of the lower surface of the handle 22.
4 are integrally provided.

As shown in FIG. 11, a recess 46 is formed at one end of the front surface of the switch 14 for inserting and supporting the fulcrum rib 41 of the handle 22, and a stopper rib 42 is inserted at the other end. Recess 47 is formed. Here, in the handle 22, the edge 42 a of the stopper rib 42 is locked to the inner corner of the recess 47, and the handle 22 is prevented from coming off.

When the depression 23 of the handle 22 is pressed with a fingertip, as shown in FIG. 11 and FIG. 13, the rotation is made about the fulcrum rib 41, and the action point rib 44 pushes the projection 45 of the push button 33 of the switch 14. When pressed, the switch 14 is opened and closed as described above. 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.

(Embodiment 2) FIG. 14 is an exploded perspective view of this embodiment. In this embodiment, an outlet 52 and a ground terminal 53 are used instead of a switch as a device, and the locking projections 15 are formed on assembly frames 54 for assembling and connecting the covers 52a, 53a and the bodies 52b, 53b. .

An elastic piece is provided on one side piece 12 of the middle frame 9 so that one locking projection 15 of the outlet 52 or the ground terminal 53 can be locked freely, and the other locking projection 15 is connected to the other side. It is designed to be inserted and locked in a pair of locking holes 13 of the piece 12. This configuration is the same as the structure of a synthetic resin mounting frame for general wiring equipment. When the outlet 52 or the ground terminal 53 is to be removed, the elastic piece is bent outward at the tip of the screwdriver and the outlet 52 or The ground terminal 53 can be removed.

As shown in FIG. 15, the round fireproof panel 1
6, a stepped portion 60 is formed at the center of the stepped portion 6, and a hole 17 for exposing the instrument is formed in the center of the stepped portion 60. This hole 17 has a size when one appliance, for example, one outlet 52 or ground terminal 53 as shown in FIG. 14 is arranged. As shown in FIG. 16, a square hole 58 is formed at the center of a conventionally used round decorative cover 59 so that an insertion hole of an outlet 52 or a terminal portion of a ground terminal 53 is provided. It is designed to be exposed.

Accordingly, in the present embodiment, the tip of the driver is inserted into the through hole 57 provided in the
The outlet 52 or the ground terminal 53 can be removed without removing the refractory panel 16 by bending the elastic piece of. Here, outlets, switches, and the like have different shapes depending on the series, and the specifications of the fixing portion of the instrument of the middle frame 9 are 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. 17 shows a decorative cover 59. The size shown by the solid line of the center hole 58 shows the case of one outlet 52 or ground terminal 53, and the two-dot chain line shows the case of two holes. I have. 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. 15) 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.

[0038]

According to the first aspect of the present invention, there is provided a plate frame having an opening and fixed to a construction surface, and a wiring device such as a switch or an outlet which is removably mounted in the opening of the plate frame and is provided inside. It has a middle frame that can be detachably mounted up to two pieces, and a decorative plate that exposes the front surface of the device and is detachably mounted on the front surface of the plate frame.
The two openings are arranged side by side in the longitudinal direction, and the decorative plate is formed in an oval shape, exposing the device approximately in the center.
Formed round with holes, decorative plate and plate frame
Two fire-resistant panels placed between the middle frames
Claws for fixing to the plate frame on the outer periphery of
At the same time, form multiple
A hole is provided to insert and lock the claws.
Of the adjacent fireproof panel when secured to the front of the
At the end, a line connecting the centers of the two refractory panels
End portions on different sides and a nail is formed
Since at least the missing portion is cut out , two to four wiring devices can be arranged on the construction surface. As a result, the appearance can be improved as compared with arranging two conventional round wiring devices, and the cost can be reduced by partially using parts used in the conventional round wiring device. This has the effect. Also, in the hole on the front of the plate frame
A plurality of claws for insertion and locking are provided at approximately equal intervals on the outer periphery
Secures the fireproof panel to the front of the plate frame
And two fireproof panels can be attached to the plate frame
When mounted on the front of the
Are located symmetrically with respect to the line connecting the above centers
Then, cut the pitch of the two refractory panels installed in parallel.
The effect is that it can be shortened by the amount of the notch.
You.

[0039]

According to the second aspect of the present invention, the locking claw inserted and locked into the locking recess formed in the plate frame is provided on the back surface of the decorative plate, so that the decorative plate is mounted on the front surface of the plate frame and securely inserted. There is an effect that it can be fixed. Claim
In the invention of Item 3 , the longitudinal direction of the device mounted on the inner frame is matched with the longitudinal direction of the plate frame, and the inner frame is mounted on the plate frame. It can be arranged on the construction side in parallel.

According to a fourth aspect of the present invention, there is provided a round opening for positioning a round handle for operating a switch or a round decorative cover in which a hole for exposing the front surface of the instrument is formed substantially in the center. Since the decorative plate is arranged side by side, there is an effect that the cost can be reduced by using the handle or the decorative cover used in the conventional round wiring device.

According to a fifth aspect of the present invention, since the locking recess for engaging with the locking portion of the protective cover for covering and protecting the back of the wiring device is provided on the back surface of the plate frame, the protective cover is provided on the plate frame. There is an effect that it can be attached to the back and fixed.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing the entirety of a first embodiment.

FIG. 2 is an enlarged perspective view of a plate frame and a clip metal according to the first embodiment.

3A and 3B show a plate frame of the above, wherein FIG. 3A is a front plan view, FIG. 3B is a sectional view taken along line XX of FIG.
Is a rear plan view.

FIG. 4 is an enlarged perspective view of the middle frame and the switch according to the first embodiment;

FIG. 5 is an enlarged perspective view of the refractory panel and screws according to the first embodiment.

FIG. 6 is a plan view of the refractory panel of the above.

FIG. 7 is an enlarged perspective view of the decorative plate and the handle of the above.

FIG. 8 shows the decorative plate according to the first embodiment, and (a)
FIG. 3B is a rear plan view, and FIG. 3B is a cross-sectional view taken along line YY in FIG.

FIG. 9 shows the same as above, and is an overall sectional view of a state where it is attached to a construction surface.

FIG. 10 shows a protective cover according to the third embodiment;
Is a plan view, and (b) is a sectional view.

FIG. 11 is a cross-sectional view of the switch.

FIG. 12 is a sectional view of the handle.

FIG. 13 is an overall sectional view of the above.

FIG. 14 is an exploded perspective view showing the entire embodiment 2.

FIG. 15 is an enlarged perspective view of the outlet, the ground terminal, the middle frame, the fireproof panel, and the screw according to the first embodiment.

FIG. 16 is an enlarged perspective view of the decorative cover and the decorative plate according to the third embodiment.

FIG. 17 shows the decorative cover according to the embodiment, and (a)
Is a front view, (b) is a side view, and (c) is a rear view.

FIG. 18 is a plan view of a conventional round wiring device.

FIG. 19 is a plan view of a conventional round wiring device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Plate frame 2 Opening 9 Middle frame 14 Switch 16 Fireproof panel 22 Handle 28 Decorative plate

Continuation of front page (56) References JP-A-4-193014 (JP, A) JP-A-5-68314 (JP, A) JP-A-5-76119 (JP, A) JP-A-5-153710 (JP, A) , A) (58) Field surveyed (Int. Cl. ⁷ , DB name) H02G 3/02

Claims (5)

(57) [Claims] 1. A plate frame having an opening and fixed to a construction surface, and a maximum of two wiring devices such as switches and outlets removably mounted inside the plate frame opening and removably mounted. A possible middle frame, and a decorative plate that exposes the front surface of the device and is detachably mounted on the front surface of the plate frame . The plate frame is formed in an oval shape, and two opening portions are provided in the longitudinal direction. Is formed in an oval shape, and has a round shape with a hole in the center to expose the instrument.
Is formed between the decorative plate and the plate frame.
A plate is provided on the outer periphery of two fireproof panels correspondingly arranged.
Form a plurality of nails for fixing to the frame at substantially equal intervals.
And this claw is inserted and locked on the front of the plate frame
With holes, two fireproof panels are fixed to the front of the plate frame
The end of the adjacent refractory panel when
Different sides across the line connecting the centers of the fireproof panels
At least the end portion of the
Wiring device characterized by the notch . 2. A locking member inserted into a locking recess formed in a plate frame.
2. The wiring device according to claim 1, wherein a locking claw to be stopped is provided on a back surface of the decorative plate . 3. The longitudinal direction of the device mounted on the inner frame and the press
Install the middle frame on the plate frame so that the
The wiring device according to claim 1, wherein the wiring device is worn . 4. A round handle for operating a switch.
Is a round hole with a hole in the center that exposes the front of the instrument.
Two round openings in the longitudinal direction to position the makeup cover
2. The decorative plate according to claim 1, wherein the decorative plates are arranged side by side.
The wiring device according to claim 3. 5. A protection for covering and protecting the back of a wiring device.
Insert the locking recess where the locking part of the cover is engaged with the back of the plate frame.
The wiring device according to claim 1, wherein the wiring device is provided on a surface .