JP3050687B2 - 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]

BACKGROUND ART By the round holes bored in erecting surface from rectangular, since it becomes easy drilling work, recently, round wiring accessories have been proposed. In the this type of round wire instrument detachably mounted with round plate frame that is fixed to the building material has an opening substantially at the center, fitted in the opening of the plate frame to the plate frame And a switch fitted in the middle frame and detachably mounted on the middle frame, a decorative frame for covering the front surface of the plate frame, and the like. Conventionally, a plate frame is attached to a building material as follows. From the back of the plate frame 1, the vertical pieces 70, 71 and the horizontal pieces 7 on both sides as shown in FIG.
3, a screw 3 is inserted into the leg 3 from the front surface of the plate frame 1 through an insertion hole 6, and a clamp 7 is disposed at the tip of the leg 3. The tip of the screw is screwed into the clamp 7. And the clip 7
Is inserted into the opening of the erection material in a state where is stored in the leg 3 side, and by rotating the screw in the tightening direction, the tip of the clamp 7 is rotated away from the leg 3, The holding member 7 is protruded to a position where the holding member 7 is engaged with the back surface of the building material, and the screw is tightened to hold the building material between the back surface of the plate frame 1 and the holding member 7 so that the plate frame 1 is attached to the building material. ing. Further, the length of the vertical piece 70 and the horizontal piece 73 of the leg 3 protruding rearward is shorter than the length of the vertical piece 71 protruding rearward. A part 74 is formed. By rotating in the opposite direction to the direction in which the screw is tightened, the clamp 7 is stored in the leg 3 side, and a part of the clamp 7 is
The horizontal piece 73 fits into the concave step 74 at the tip. A locking projection 76 is projected between the tip of the vertical piece 70 and the tip of the horizontal piece 73 of the leg 3, and a locking recess 77 is provided in the clip 7 to house the clip 7. In this state, the locking recess 77 is locked to the locking projection 76. At the tip of the vertical piece 70, there is provided a slope surface 75 whose height decreases as the distance from the horizontal piece 73 increases. Plate frame 1
The height A from the rear surface of the vertical piece 70 to the highest part of the slope 75 at the tip of the vertical piece 70 is equal to the height B from the rear face of the plate frame 1 to the tip of the horizontal piece 73.

[0003]

By the way, in the above-mentioned conventional example, since the height A of the vertical piece 70 and the height B of the horizontal piece 73 are equal, the clip 7 is turned toward the leg 3 and stored. When the clip 7 comes into contact with the highest part of the slope 75 at the tip of the vertical piece 70 and the tip of the horizontal piece 73, and when the screw 7 is turned in the tightening direction and the clip 7 is projected, the clip 7 There is a problem in that the contact fitting 7 does not protrude due to a large contact resistance to the tip of the horizontal piece 73, and the normal mounting cannot be performed in a state where the clip 7 is mounted on the inclined surface 75 of the horizontal piece 70. .

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a plate frame in which a clip metal is smoothly projected without being caught on a leg when the plate frame is attached to a construction material. It is an object of the present invention to provide a wiring device that can securely mount the wiring device in a normal state.

[0005]

Means for Solving the Problems The present invention wiring device for achieving the above object, is fixed to the building material has an opening 2 at a substantially central and pulp rate frame 1, the plate frame 1 in the opening 2 A wiring device provided with devices, such as a switch 14 and an outlet 55, which are detachably mounted to be fitted into the plate frame 1. The vertical pieces 70, 71 and the horizontal pieces 7 on both sides from the back to the back of the plate frame 1.
3, a screw 5 is inserted into the leg 3 from the front of the plate frame 1, and a clip 7 disposed at the tip of the leg 3 is locked to the back of the building material. And screw the tip of the screw 5 to the clamp 7 and tighten the screw 5 to clamp the construction material between the plate frame 1 and the clamp 7 to attach the plate frame 1 to the construction material and tighten the screw 5 in the tightening direction. The clamp 7 protrudes so that the clamp 7 locks to the back of the building material when rotated, and the clamp 7 is housed in the leg 3 when the screw 5 is rotated in the direction opposite to the tightening direction. The clip 7 is disposed at the tip of the leg 3, and the length of one of the vertical pieces 70, 71 on both sides of the U-shaped cross section of the leg 3, which protrudes behind the vertical piece 70 and the horizontal piece 73, is set to the other vertical piece. 71, a concave step 74 where the sandwiching metal fitting 7 in the housed state is located is formed. A locking projection 76 protruding rearward is provided at a corner between them, and a locking recess 77 that engages with the locking projection 76 in the housed state is provided in the clamp 7. The length of the protrusion of the horizontal piece 73 is slightly longer than the length of the protrusion of the horizontal piece 73 to the back.

[0006]

According to the above construction, the length of the one vertical piece 70 of the leg 3 protruding rearward is made slightly longer than the length of the horizontal piece 73 protruding rearward, so that the clip 7 can be moved to the leg 3 side. When the clip 7 is stored in the holder, the clip 7 does not come into contact with the tip of the horizontal piece 73, and when the clip 5 is rotated in the direction of tightening the screw 5 to project the clip 7, the clip 7 projects smoothly, and the clip 7 reliably projects. Can be mounted in normal condition.

[0007]

FIG. 2 is an exploded perspective view showing an entire embodiment of the present invention. The plate frame 1 disposed on the front surface of the building material is formed in a round shape as shown in FIG. 3, and has an opening 2 substantially at the center. Legs 3 having a U-shaped cross section are integrally formed on both sides of the rear surface of the plate frame 1 so as to protrude rearward, so that the legs 3 are inserted into circular openings formed in the construction material. ing.

As shown in FIG. 1, the leg 3 having a U-shaped cross section is composed of vertical pieces 70 and 71 and a horizontal piece 73 on both sides.
The protruding length of one vertical piece 70 and the horizontal piece 73 to the back is shorter than the protruding length of the other vertical piece 71, and the shorter part of the vertical piece 70 and the horizontal piece 73 than the vertical piece 71 is a concave step. 74.
At the corner between the tip of the vertical piece 70 and the tip of the horizontal piece 73, a locking projection 76 projecting rearward is provided. The distal end surface of the vertical piece 70 is formed as a slope surface 75 on which a locking projection 76 is raised.

The length of the vertical piece 70 and the width of the horizontal piece 73 are shorter than the length of the vertical piece 71, but the length of the vertical piece 70 is smaller than the length of the horizontal piece 73. That is, the height A from the rear surface of the plate frame 1 to the highest portion of the inclined surface 75 of the vertical piece 71 and the height B from the rear surface of the plate frame 1 to the tip of the horizontal piece 73 are in a relationship of A> B. It is made to become.

The clip 7 is formed in the shape shown in FIG.
A screw hole 78 is formed in the base of the holding member 7, and a locking recess 77 that can be locked to the locking projection 76 is provided in an intermediate portion of the holding member 7. A screw 5 having a base made of a synthetic resin screw 4 is inserted into the insertion hole 6 of the plate frame 1 and the leg 3, and the tip of the screw 5 is inserted into a screw hole 78 of a clamp 7 disposed at the tip of the leg 3. Is screwed.

When the screw 5 is rotated in the tightening direction, the clamp 7 is rotated together with the screw 5 and the tip of the clamp 7 is oriented so as to protrude outward. When the screw 5 is rotated in a direction opposite to the direction in which the screw 5 is tightened, the clamp 7 is rotated toward the leg 3 and the clamp 7 is stored. In a state in which the clip 7 is stored, a part of the clip 7 is stored in the concave step 74 at the tip of the vertical piece 70 or the horizontal piece 73, and the locking recess 77 is formed in the locking projection 7.
Lock to 6.

When the clip 7 and the leg 3 are inserted into the opening of the erection material in a state where the clip 7 is stored and the screw 5 is tightened, the tip of the clip 7 protrudes outward and the tip of the clip 7 is The plate frame 1 is attached to the erection material by being locked to the back of the erection material and further tightening the screw 5 so that the erection material is sandwiched between the clip metal 7 and the plate frame 1. Clamping bracket 7
In the stored state, the tip of the horizontal piece 73 does not come into contact with the clip metal 7 and only the highest part of the slope 75 of the vertical piece 70 is in contact.
Is smoothly rotated so that the tip of the clip protrudes outward, and the clamp 7 reliably projects and is mounted in a normal state.

On both sides of the plate frame 1, there are formed screw holes 8 for directly screwing to the construction surface. Locking claws 10 are integrally formed at the four corners of the middle frame 9 which is detachably mounted in the opening 2 of the plate frame 1 as shown in FIG. A locking recess 11 is formed, a middle frame 9 is arranged in the opening 2 of the plate frame 1, and a locking claw 10 is inserted and locked in the locking recess 11, so that the plate frame 1 has The frame 9 is detachably attached.

A switch 14 is provided in the middle frame 4. A pair of locking projections 15 protruding from both sides of the switch 14 are inserted and locked in the locking holes 13 of the middle frame 4. , 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 present embodiment, 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 for a switch 14 such as a piano-operated push button switch.
Two sets of locking holes 13 are formed on both sides,
Can be attached to two. Switch 14 to 2
The inner locking hole 13 is formed longer than the outer locking hole 13 in order to adjust the pitch so that the middle frame 9 is shared between the case where one is mounted and the case where one is mounted.

A metal fireproof panel 16 as shown in FIG. 5 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 addition, around the refractory plate 16, the screw 5
And a semicircular hole 19 for escaping a screw screwed into the screw hole 8 are formed.
Holes 2 of the plate frame 1 are provided at four places around the periphery of the fireproof panel 16.
The hook 21 is formed so as to be inserted and locked at 0.

An operation handle 22 detachably mounted on the upper surface of the switch 14 is formed in a disk shape, and an operation mark 23 for pushing operation with a fingertip is formed on one end of the handle 22. A display window 24 is formed at the other end of the handle 22. A display unit 25 for lighting and displaying is provided on the upper surface of the switch 14. A lens 26 for condensing the light of the display and transmitting the light to the display window 24 is provided on the handle 2.
2 is attached to the lower surface.

A decorative frame 28 in which an opening 27 slightly larger than the handle 22 is formed inside is formed in a round frame shape, and a locking claw 29 is integrally formed on the back surface as shown in FIG. ing. The locking claw 29 is inserted and locked in a locking recess 30 formed in the plate frame 1 so that the decorative frame 28 is detachably mounted. In addition, the makeup frame 28
As shown in FIG. 7 showing the back of the frame, a guide rib 31 is formed around the back of the decorative frame 28 at the time of fitting with the plate frame 1, and a rib for hiding the inside along the opening 27. 32
Are integrally formed.

In the assembly, the switch 14 can be fixed to the plate frame 1 in the procedure of mounting the switch 14 on the intermediate frame 9 and mounting the intermediate frame 9 on the plate frame 1. By the way, 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 a push operation with the handle 22, a spring 34 that urges the push button 33 upward, and a spring that is urged by the spring 34 to move laterally on the lower surface of the push button 33. Slider 3 installed
5 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, the slider 35 is moved in the horizontal 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. 8 to 10, the handle 22
Fulcrum rib 4 having elasticity at the time of instrument operation on one end side of the lower surface of
A pair of stopper ribs 42 are provided on the other end side, and 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 at the time of operation is formed outside the stopper rib 42, and an action point rib 44 for pressing the projection 45 of the push button 33 of the switch 14 integrally projects at the center of the lower surface of the handle 22. It is set up.

A handle 2 is provided at one end of the upper surface of the switch 14.
A recess 46 into which the two fulcrum ribs 41 are inserted and supported is formed, and a recess 47 into which the stopper rib 42 is inserted is formed at the other end. Here, the handle 22 has the edge 42a of the stopper rib 42 locked at the inner corner,
The handle 22 is prevented from falling off. When the operation mark 23 of the handle 22 is pressed by a fingertip, as shown in FIGS. 8 and 10, the operation point rib 44 rotates about the fulcrum rib 41 and the action point rib 44 presses the projection 45 of the push button 33 of the switch 14. hand,
The switch 14 is opened and closed as described above. When the pushing 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.

As shown in FIG. 5, the refractory panel 16 is formed by bending the claws 21 at four locations on the outer periphery of the refractory panel 16, and the outer surface of the claws 21 is cut and raised by the claws 54. Has formed. 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 5
4 is locked to the inner surface of the hole 20 so that the fireproof panel 16
Can be securely fixed to the plate frame 1.

On the outer peripheral portion of the fireproof panel 16, four square holes 51 are formed for escape, through which the locking claws 29 of the decorative frame 28 are inserted. Therefore, the decorative frame 28 can be attached to the plate frame 1 without the fire panel 16 being in the way.
Can be fixed. Further, a square hole 17 is formed in the center of the fireproof panel as described above, so that the front surface of the switch 14 is exposed from the hole 17 to facilitate operation. 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 there is a possibility that the single fireproof panel 16 may fall off. Therefore, a convex portion 52 is provided so as to project inward from both sides of the inner edge of the hole 18. Convex part 52
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 52, so that the fireproof panel 16 alone can be prevented from falling off.

On the other hand, when the plate frame 1 is directly attached to the construction surface, the holes 19 of the refractory panel 16 through which screws are inserted also have the same convex portions 53 as those described above. Also in this case, the single fireproof panel 16 can be prevented from falling off. A tongue-shaped convex portion 53 is formed in the hole 19 of the fireproof panel 16. When the plate frame 1 is directly attached to the construction surface with a screw, the head of the screw is received by the convex portion 53 and the fireproof panel 53 is received. The plate frame 1 can be attached to the construction surface together with the plate frame 16. Therefore, even if a synthetic resin molded part such as the decorative frame 28 burns in the event of a fire, the fireproof panel 16 is fixed to the construction surface with screws, so that the mounting holes on the construction surface are not exposed. , Can prevent flame spread.

Next, another embodiment of the present invention will be described with reference to FIG. In this embodiment, an outlet 55 is used instead of the switch 14 as an instrument, and the cover 55a and the body 5 are used.
5b is assembled to the assembly frame 56 for assembling and connecting
Is formed. 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 locked freely, and the other locking projection 15 is locked with a pair of locking pieces of the other side piece 12. The holes 13 are inserted and locked. This configuration is the same as the structure of a general mounting frame for wiring equipment. When the outlet 55 is removed, the elastic piece can be bent outward with the tip of a screwdriver or the like, and the outlet 55 can be removed.

Also in this embodiment, the plate frame 1 is mounted in the same manner as in the above-described embodiment, and the plate frame 1 is mounted on the rear surface of the plate frame 1 and the clamp 7 by tightening the screws 5 inserted through the legs 3. The material is clamped, and the plate frame 1 is attached to the construction material. The refractory panel 16 is basically the same as the above-described embodiment, except that a step portion 60 is provided at a central portion of the refractory panel 16. Further, a through hole 57 into which the tip of a driver or the like is inserted is formed in the outer periphery of the step portion 60.

In this embodiment, since the outlet 55 is attached, a decorative cover 59 is used instead of the handle 22 of the above-described embodiment.
Are detachably attached to the middle frame 9. This makeup cover 5
In the center of 9 is a hole 58 for exposing the outlet 55
Is provided.

[0030]

According to the present invention, as described above, the length of the one vertical piece of the leg protruding backward is slightly longer than the length of the protruding rear piece of the horizontal piece. In the state where the clamp is turned to the side and stored, the clamp does not contact the tip of the horizontal piece, and when the clamp is turned in the direction of tightening the screw to project the clamp, the clamp projects smoothly without resistance. ,
When fixing the plate frame by inserting it into the opening of the building material,
When the screw is turned, the clamp is securely projected and can be mounted in a normal state.

[Brief description of the drawings]

FIG. 1 shows a main part of a plate frame according to an embodiment of the present invention;
(A) is a side view, (b) is a plan view seen from the back, and (c) is a front view.

FIG. 2 is an exploded perspective view showing the whole of the same.

FIG. 3 is an enlarged perspective view of a plate frame and a clip metal according to the first embodiment.

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 an enlarged perspective view of the decorative frame and the handle of the above.

FIG. 7 is a rear view of the decorative frame.

FIG. 8 is a cross-sectional view of the switch.

FIG. 9 is a sectional view of the handle.

FIG. 10 is a sectional view of the entire assembled state of the above.

FIG. 11 is an exploded perspective view of another embodiment of the above.

12 shows a main part of a conventional example, (a) is a side view,
(B) is a plan view seen from the back, and (c) is a front view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Plate frame 2 Opening 3 Leg 5 Screw 7 Clamping fixture 9 Middle frame 14 Switch 55 Outlet 70 Vertical piece 71 Vertical piece 73 Horizontal piece 74 Depressed stepped part 76 Locking projection 77 Locking recess

Continuation of front page (56) References JP-A-1-103113 (JP, A) JP-A-1-113293 (JP, U) JP-A-53-55797 (JP, U) JP-A-46-16203 (JP) , Y1) (58) Field surveyed (Int. Cl. ⁷ , DB name) H02G 3/02

Claims (3)

(57) [Claims] 1. An article having an opening at substantially the center and fixed to a construction material.
Plate frame and the plate frame
Equipment such as switches and outlets that are detachably mounted
Wiring equipment equipped with the back of the plate frame from the back
Projecting legs with a U-shaped cross section consisting of vertical and horizontal pieces on both sides,
Insert a screw into the leg from the front of the rate frame and place it at the tip of the leg.
Attach the clamp to the back of the construction material and attach the tip of the screw.
Screw into the clamp and tighten the screw to plate
The construction material is sandwiched between the frame and the clip metal to construct the plate frame.
When the screw is turned in the tightening direction, the clamp is
The clip is protruded so that the tool is locked to the back of the building material.
Pin when the screw is turned in the opposite direction to the tightening direction
Is placed at the tip of the leg so that
And one of the vertical pieces on both sides of the U-shaped leg and
The protruding length to the back of the horizontal piece is shorter than the other vertical piece,
Form a concave step where the clamp of the state is located, and with one vertical piece
When a locking projection protruding rearward is provided at the corner between the horizontal
The locking recess which engages with the locking projection in the stored state
And the length of the one vertical piece projecting to the back
It is characterized by being slightly longer than the length of the protrusion to the back
Wiring equipment. 2. An opening having a substantially central opening, which is fixed to a building material.
Plate frame and the plate frame
A middle frame detachably attached to the plate frame, and inside the middle frame
Switches and controls that are embedded and detachably attached to the middle frame
A wiring device equipped with a cent or the like, wherein a plate frame
U-shaped cross section consisting of vertical and horizontal pieces on both sides from the back to the back of the
Of the plate, and insert screws into the legs from the front of the plate frame
And locks the clip on the back of the building material
And screw the tip of the screw into the clamp and tighten the screw.
Attach the construction material between the plate frame and the
Attach the rate frame to the building material and turn the screw in the tightening direction.
So that the clamp is locked to the back of the timber when moved.
The metal fitting protrudes and the screw turns in the direction opposite to the tightening direction
The clip so that the clip is stored on the leg side
Place at the tip of the leg, of the vertical piece on both sides of the leg
Protrusion length of one vertical piece and horizontal piece to the back is set longer than the other vertical piece.
Shortened to form a recessed step where the clamp in the stored state is located
And a projection that projects rearward at the corner between one of the vertical and horizontal pieces
Provide the projections and Engage with stop projection
A locking recess is provided in the clamp, and the one vertical piece is
Make the protrusion length slightly longer than the protrusion
A wiring device characterized by the fact that: 3. A round plate frame having an opening substantially at the center and fixed to a building material; a middle frame fitted into the opening of the plate frame and detachably mounted on the plate frame; It is a round wiring device equipped with devices such as switches and outlets that are fitted inside and detachably attached to the inner frame.
And a U-shaped cross section consisting of vertical and horizontal pieces on both sides protruding from the back of the plate frame to the back, and screws are inserted into the legs from the front of the plate frame, and a pinch placed at the tip of the leg Lock the bracket on the back of the building material, screw the tip of the screw into the clamp, tighten the screw, clamp the construction material between the plate frame and the clamp, attach the plate frame to the construction material, and tighten the screw. When the clamp is turned in the tightening direction, the clamp is protruded so as to be locked to the back of the building material, and when the screw is turned in the direction opposite to the tightening direction, the clamp is stored in the leg side. Is placed at the tip of the leg, and the length of the vertical piece on either side of the U-shaped cross section of the leg that protrudes to the back of one vertical piece and the horizontal piece is shorter than the other vertical piece, and A locking projection that forms a recessed step positioned and projects rearward at the corner between one of the vertical and horizontal pieces In addition to the above, the holding concave portion which engages with the above-mentioned locking protrusion in the housed state is provided on the clamp, and the projecting length of the one vertical piece to the back is slightly longer than the projecting length of the horizontal piece to the back. A wiring device characterized by being formed.