JPH0442888B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a wiring device for installing an outlet or a switch on a wall surface.

Conventional wiring devices of this type consist of a mounting frame and a plate body, so when screwing the mounting frame onto the mounting surface, high-quality wall decorations such as wall cloth or wall material that is thick and soft are used. There was a drawback that the screwing part of the mounting frame sank significantly when the plate was mounted, causing warping of the plate body attached to the mounting frame.

The present invention has been made in view of the above-mentioned drawbacks.
The first object of the present invention is to provide a wiring device in which when the mounting frame is screwed onto the mounting surface, even if the cloth attached to the mounting surface or the wall material is thick, the lower frame prevents the plate from warping. The first object of the present invention is to provide a wiring device that can indicate whether the conductor of an electric wire is inserted or locked.

The present invention will be explained below with reference to Examples. Fig. 1 shows an embodiment using a switch main body 7 as the device main body, and in the figure 1 is a rigid and strong metal mounting frame, with oval mounting holes 3 at each end. is drilled, and a positioning hole 4 is formed at a position diagonally corresponding to this mounting hole 3. The mounting hole 3 is for inserting a screw 2 for fixing a switch body 7, an operating handle 6, etc., which will be described later, to a built-in box X or construction surface W shown in FIG. 10. A bent piece 5 that is bent upward is formed at both ends in contact with the large opening window 61 at the center of the mounting frame 1, and a protruding auxiliary fulcrum 5a is provided at the center of the upper end surface of this bent piece 5. has been done. This auxiliary fulcrum 5
The point a serves as a fulcrum against which the lower surface of the operating handle 6 of the switch body 7 contacts and causes the operating handle 6 to see-saw in both directions. In addition, both ends of the mounting frame 1 are bent downward as shown in Fig. 2, and this bent portion 1b has a shape with a large section modulus to prevent deformation and warping in the longitudinal direction when tightening screws. It is intended to obtain. Further, the switch main body 7 is housed in an open window 61 of the mounting frame 1 so as to be held therebetween. Reference numeral 8 denotes screw holes formed on both sides of the mounting frame 1, into which assembly screws 9 for fixing the switch body 7 to the mounting frame 1 are screwed. Reference numeral 10 denotes an operating body of the switch body 7. This operating body 10 forms a so-called fitting boss portion, and has a square rib 12 protruding from the center of a recessed chamber 13 having an open top surface. As shown in FIG. 3, the rib 12 has grooves 11 formed on each surface thereof, the top and side surfaces of which are open. Reference numeral 24 denotes a square frame-shaped lower frame that is slightly larger than the mounting frame 1 and located below the mounting frame 1. An opening 25 in the center of the lower frame 24 is for passing the switch body 7 through. Further, contact portions 26 on which both ends of the mounting frame 1 are placed are formed at both ends of the lower frame 24 . The opening 25 has a horizontal dimension a, a vertical dimension c larger than a, and a vertical dimension d smaller than b. Contact portion 2 of the lower frame 224
6 is formed with a protrusion 26a that fits into the hole 4 of the mounting frame 1, and by fitting the protrusion 26a and the hole 4, the mounting frame 1 and the lower frame 24 are positioned at their normal positions. become. 27 is a rib formed on the periphery of the opening 25 of the lower frame, and 28 is a long groove cut on both sides and both ends of the lower frame 24. A notch 29 for loose fitting with the screw 2 when the lower frame 24 is brought into contact with the construction surface W is formed in the contact portion 26 of the lower frame 24 corresponding to the mounting hole 3 of the mounting frame 1. has been done. In addition, the lower frame 24 is made of glass fiber, for example.
It is formed by plastic molding of thermoplastic resins such as PBT resin, Noryl resin, and ABS resin to obtain high hardness as well as elasticity. In addition, as shown in Fig. 4, on the back side of both sides of the lower frame 24, recesses 24a are formed in the longitudinal direction to secure a space for installing a panel cover H for insulation purposes, which is used when installing with clamps for boxless construction. . Reference numeral 30 denotes a square frame-shaped plate body, and the bottom surface 30 is approximately the same size as the lower frame 24.
As shown in FIGS. 5a to 5c, a rib 31 is formed to fit into the rib 27 of the lower frame 24, and a positioning protrusion 32 that fits into the long groove 28 is also integrally formed. . And the lower frame 24 and the plate body 30
The lower frame 24 and the plate body 30 when brought into contact with each other.
A groove 33 is formed around the entire circumference of the outer periphery, and the groove 33 is designed to make the whole look thinner. Note that this groove 33 may be formed in the lower frame 24. The window hole 34 in the center of the plate body 30 is
It is larger than the operation handle 6 of the switch body 7, and a support portion 35 is formed on the inner periphery of the window hole 34, and flexible locking claws 36 are formed at both ends. Reference numeral 37 designates a square frame-shaped middle frame, which is made of die-cast material to provide strength. and the fifth
As shown in Figure b, the stepped portion 3 that engages with the locking pawl 36
8 are provided on the outer side of both ends of the middle frame 37, and a contact portion 39 is further formed on the inner periphery to protrude inwardly, and this middle frame 3
7 is placed on the support portion 35 of the plate main body 30. At this time, the locking pawl 36 is fitted into the stepped portion 38 to integrate the middle frame 37 and the plate main body 30. As shown in FIG. 5a, the support portions 35 between the locking claws 36 fit into the recesses 36a of the middle frame 37. The amount of inner protrusion of the abutment portion 39 prevents the interior from being seen through the gap created when the operating handle 6 is attached. In this state, the upper end of the periphery of the middle frame 37 protrudes from the periphery of the window hole 34 of the plate main body 30, emphasizing the beauty of the external design. 4
0 is a fixing screw which is screwed into the screw hole 1a of the mounting frame 1 to fix the plate main body 30 to the mounting frame 1.
The operating handle 6 of the switch body 7 is connected to the rib 1 of the operating body 10 of the switch body 7, as shown in FIG. 5a.
A cylindrical rib 41 that loosely fits into the recess 2 and fits within the recess 13 is integrally formed on the back surface thereof. On the other hand, as shown in FIG. 3, notches 13a with upper openings are formed in both side walls of the operating body 10, and a substantially U-shaped fixing spring 14 is accommodated in the recessed chamber 13. This fixed spring 14 is formed from a bottom surface 17 having a claw piece 15 protruding inwardly that engages with the groove 11 of the rib 12 and a chrysanthemum hole 16 formed in the center thereof, and side pieces 18, 18. . The upper end of the side piece 18 of the fixed spring 14 is opened outward to form a guide piece 19, and is cut upward from the middle to form a locking piece 20.
Note that the upper end of the guide piece 19 is housed so as not to protrude beyond the upper end surface of the operating body 10. 21 in Figure 3
is a hole cut in the upper surface of the concave chamber 13 below the groove 11 of the rib 12, and the hole 16 of the fixed spring 14 is inserted into the rib 12.
When the protruding piece 15 of the chrysanthemum hole 16 is press-fitted into the groove 11, the shavings generated when the protrusion 15 of the chrysanthemum hole 16 is press-fitted into the groove 11 are stored in the hole 21. is prevented from shifting and fitting into the recessed chamber 13. Note that the hole 21 may be replaced with a protrusion. A display element 23 indicates that the load is on, and a display element 22 indicates that the load is off. In addition, the operation handle 6
The cylindrical rib 41 on the back side is formed with a rib 42 that fits into the notch 13a at a position corresponding to the central axis on which the operating handle 6 reverses, and the spring 14 is engaged on the side where force is applied during the reverse operation. A protrusion 43 that engages with the stopper piece 20 is formed, and the plate body 30
It is attached to the switch body 7 by loosely fitting into the window hole 34 of the switch body 7. Reference numeral 44 denotes a transparent body attached to an elongated hole 45 formed approximately in the center of the operating handle 6, and is formed long on the reverse movement direction side of the operating handle 6, so that the blinking state of the display elements 22 and 23 can be monitored from the outside. This can be visually confirmed, and the display elements 22 and 23 are arranged so that the side on which the operating handle 6 is tilted lights up to facilitate confirmation. This transparent body 44 has extending pieces on both sides as shown in FIG. 6a, and the extending pieces have chrysanthemum holes 44
This hole 44a has a diameter 44a, and is fixed by being press-fitted into a boss 80 protruding from both sides of the hole 45 on the back surface of the top plate 6, as shown in FIG. 6b.

Next, the switch mechanism section of the switch body 7 will be explained based on FIG. A is a switch block in which the operating body 10 is composed of a fixed spring 14, etc., and the operating body 1
A cylindrical projection 46 integrally protrudes from the lower surface of the spring 47. The upper end of a spring 47 is fixed to the projection 46, and a movable contact plate 48 is connected to the lower end of the spring 47. 49 is a movable contact plate 48
It is a movable contact fixed to the top of the. B is a support block, which includes a current transformer 50 for detecting current when it flows through the load;
The display element 23 includes a diode 54 disposed on a substrate 53 above the display element 23, a light emitting diode, and a display element 23 that emits, for example, red light. 52 is a terminal plate connected to an external electric wire, 51 is a movable contact plate 4
This is a support piece on which 8 is placed and supported. This support block B is housed in the body 55, and the switch block A is placed on the support piece 51. The operating body 10 is urged upward by the spring 47 and inserted into the opening 57 of the cover 56, and the operating body 10 is inserted into the opening 57 of the cover 56.
A protrusion 59 integrally formed on both sides of the opening 57
The movable contact plate 48 is loosely fitted into a recess 58 cut into the inner wall surface of the cover 56 to prevent the operating body 10 from protruding upward from the cover 56, and to reverse the operation of the movable contact plate 48 by the spring force of the spring 47. There is. The terminal plate 52 and the support piece 51 are the current transformer 5
0, and the support piece 51 is electrically connected to the movable contact plate 48 through mechanical contact. C is a contact terminal block in which fixed contacts 63 are arranged on both sides of a movable contact plate 48, and is composed of two fixed terminal plates 60 and 62, and both fixed terminal plates 60 and 62 are opposite to the terminal plate 52. It is housed inside the body 55 on the side. A contact plate 64 extends from one fixed terminal plate 62 to the body, and a fixed contact 63 is fixed to the contact plate 64 whose tip is bent. 48, the movable contacts 49 are arranged in correspondence with each other. Contacts 65 and 66 are connected to both fixed terminal plates 60 and 62, respectively.
A resistor 68 placed on a substrate 67 between 5 and 66
A display element 22 consisting of a neon lamp is inserted. Reference numeral 69 denotes a lamp cover, in which the substrate 67 is held between both side pieces 71, 71, and a transparent body 70 protruding from the upper surface of the lamp cover 69 is located above the display element 22; The blinking of the display element 22 is displayed. Both side pieces 71 of this lamp cover 69,
The board 67 is held in the inside of the lamp cover 71, and the front extending piece 69 of the lamp cover 69 is held as shown in FIG.
For example, a green transparent body 70 protruding from the upper surface of a is located above the display element 22, and the front extending piece 69a protects the display element 22 consisting of a neon lamp.
At the same time, the transparent body 70 converts the light from the display element 22 made of a neon lamp into, for example, green light. Note that the transparent body 70 is formed to have the same shape as a light emitting diode. Therefore, two holes are drilled in a straight line on the side of the opening 57 of the cover 56.
The display element 23 and the transparent body 70 are fitted into the respective insertion holes 72a and 72b from below, so that their respective heads are exposed to the outside of the cover 56. FIG. 9 is a schematic perspective view of the switch body 7 and the operating handle 6, and shows the transparent body 4 of the operating handle 6.
4 is formed into an elongated shape having a length that is approximately symmetrical with respect to the axis of the fulcrum of seesaw movement of the operating handle 6, and the two display elements 22 and 23 are located below both ends of the transparent body 44. The transparent body 44 is illuminated when the display element 22 emits light. Note that substrates 53, 67 and a current transformer 50 are arranged below the display elements 22, 23, and a movable contact plate 48
However, the fixed terminal plates 60 and 62 are located on the sides of the current transformer 50. Next, numeral 73 in the figure is a display piece, which is arranged correspondingly to the terminal plate 52 and the fixed terminal plates 60, 62, respectively. The upper end of the coil spring 74 comes into elastic contact with the lower surface of the cover 56 and is urged downward, and the locking spring 76 and each terminal plate 52, 60, 62 disposed on each terminal plate 52, 60, 62, respectively. Display hole 95 depending on the insertion state of the electric wire l inserted between
is slid to cause the tip of the display portion 73a to protrude or retract from the display hole 96 to indicate the insertion state of the electric wire l. 75 is a contact part for moving the display piece 73 by contacting the electric wire l;
A portion 75a that contacts the locking spring 76 of No. 5 is an inclined surface to prevent the locking spring 76 from falling. 7
Reference numeral 7 denotes a release button made of an insulating material for releasing the locked state of the electric wire 1.

The switch mechanism is housed in the body 55, the cover 56 is covered, and the assembly screw 9 is screwed into the screw hole 8 of the mounting frame 1, thereby completing the assembly of the switch main body 7.

Next, a method for attaching the wiring device of the present invention to the construction surface W will be explained. First, as shown in FIG. 10, the switch body 7 is fixed to the mounting frame 1, wiring is applied, and the mounting frame 1 is fixed to the embedded box X or the construction surface W with screws 2. Next, a decorative material Y such as a cloth is attached to the construction surface W, and the decorative material Y is cut along the mounting frame 1 to expose the switch body 7. After loosening the screws 2, the lower frame 24 is attached to the lower surface of the mounting frame 1. In this case, first loosely fit the screw 2 into the notch 2a and insert the mounting frame 1 into the lower frame 24 through the opening 25.
After that, the lower frame 24 is moved to the regular position. Therefore, the lower frame 24 can be mounted on the lower surface of the mounting frame 1 without removing the mounting frame 1. And the contact part 2 of the lower frame 24
6, the hole 4 of the mounting frame 1 is fitted into the protrusion 26a of the lower frame 24, and the screw 2 is tightened. Therefore, even if the decorative material Y is thick, by tightening the screws 2, the entire decorative material Y in contact with the lower frame 24 is pressed against the construction surface W side. Next, tighten the plate body 3 with the fixing screw 40.
0 to the mounting frame 1, the operation handle 6 is loosely fitted into the window hole 34, and the concave chamber 1 of the operation body 10 is inserted.
3, the cylindrical rib 41 of the operating handle 6 is pushed in, and the protrusion 43 of the cylindrical rib 41 is locked to the locking piece 20 of the fixing spring 14 to mount the switch body 7.
Therefore, there is no need to worry about the operating body 10 being stained by the decorative material Y such as cloth. And in this case,
By fixing the middle frame 37 to the mounting frame 1 and forming the contact portion 39, the operation handle 6 of the switch body 7
Even when the operating handle 6 is larger than the operating body 10, the reversal angle can be ensured at the normal position.

By the way, since the switch main body 7 has a display element fixed at a different position from the operating body 10, the fixed position of the display elements 22 and 23 is located away from the upper position of the switch mechanism that interlocks with the operating body 10. , each display element 22, 23 is electrically insulated from the switch mechanism, and the display element 22, 2 is electrically insulated by the arc when the contact is opened/closed.
3 is damaged, and since the display elements 22 and 23 themselves do not move like the operating body 10, there is no possibility of wire breakage.
23 is not provided, it is not necessary to assemble the display elements 22, 23 and the operating body 10 at the same time, making assembly easier.

FIG. 11 shows a switch circuit formed using this embodiment, in which a power source c is connected to the terminal board 52, and a load is connected to one fixed terminal board 60. The other fixed terminal plate 62 is used when forming a three-way switch circuit. In this state, the load L
is in the OFF state, current flows through the display element 22 made of a neon lamp, and the display element 22 lights up, indicating that the load L is in the OFF state. At this time, as shown in FIG. 12a, the operating handle 6 is tilted toward the display element 22, and the transparent body 14 of the operating handle 6 approaches the display element 22 due to the pushing action of the operating handle 6. The luminescent display is bright and easy to see from the outside. Next, as shown in FIG. 12b, when the operating handle 6 is reversed, the load L is connected to the power source e, the display element 22 is turned off, and the primary winding N ₁ of the power transformer 50 is
A current flows through the current transformer 50, and the secondary output of the current transformer 50 lights up the display element 23, which is a light emitting diode, and indicates that the load L is on. At this time, since the display element 23 on which the operating handle 6 is pressed is lit, the transparent body 44 approaches the display element 23, making the display brighter and making it easier to see the lighting state from the outside. When the display element 22 is lit, green light is displayed by the transparent body 70, and when the display element 23 is lit, red light is displayed, so that the operating status of the switch can be visually recognized by color. FIG. 13 shows the connections for a three-way switch circuit.

In the above embodiment, one switch main body 7 is provided, but FIG. 14 shows an embodiment in which two switch main bodies 7a and 7b are provided. In this embodiment, by arranging the display elements 22 and 23 of the switch bodies 7a and 7b, which are arranged side by side on the upper and lower sides, with respect to the single operation handle 6 as shown in FIG. Vertical dimension is 1/2
The transparent body 44 of the operating handles 6a and 6b for the two
By deviating the switch bodies 7a and 7b toward the boundary side, the operating states of the switch bodies 7a and 7b can be visually checked in an instant. In addition, each operation handle 6a, 6
As shown in FIG. 16, the switch bodies 7a and 7b have a mutually symmetrical mechanical arrangement so that the closing direction (falling direction) of the switch body 7b coincides with the operation of the respective switch bodies 7a and 7b. By using the above-mentioned mutual operation handles 6a,
The closing direction of 6b and the switch operation are made to match. However, when performing the feed wiring 94 of the switch bodies 7a and 7b as shown in FIGS. 17a and 17b,
Since the connection terminals corresponding to the terminal plate 52 on the common terminal side are parallel to each other, feeding is easy. 93 ₁ , 9 in the same figure
3 ₂ , 93 ₃ and 93 ₄ are conducting wire insertion holes, respectively. Figures 18a and 18b show examples in which an electronic switch 7'' other than a mechanical switch is used in place of one of the switch bodies. In Figure 14, 37a'' indicates the boundary between the operating handles 6a and 6b. This is a central rib to eliminate gaps.

In the above embodiment, two switch bodies 7a, 7b are attached to one mounting frame 1, and the two operating handles 6a, 6b are installed in the loose fitting space of one large operating handle 6 of the middle frame 37. However, the embodiments shown in FIGS. 19a and 19b and FIG. 20 relate to multiple wiring devices. That is, as shown in the figure, there is a middle frame 3 between the operating handles 6 ₁ and 6 ₂ .
A central rib 37 integrally extends from each of the upper and lower sides of 7.
a is arranged, and the gap between the central rib 37a and the operating handles 6 ₁ , 6 ₂ is the same as that of the operating handles 6 1 , 6 ₂ .
The gap is set to be approximately as narrow as the gap between 6 ₂ and the middle frame 37. Therefore, the operating handle 6 ₁ ,
The central rib 37a prevents foreign objects from being inserted through the gap between the _two . Sometimes, the gap between the operating handles 6 ₁ and 6 ₂ is made inconspicuous. FIG. 20 shows an exploded perspective view of the wiring device.

Furthermore, FIGS. 21a and 21b and FIG. 22 show other embodiments of the multiple type, and these embodiments are the multiple type of the embodiment of FIG. The operating handles 6a, 6
A central rib 37a' is also provided between the gaps 37a' and 37a' to reduce the gap and prevent dust from entering.

The wiring device described so far has been a switch, but it may also be used for the following outlet devices. Examples of the outlet appliance will be described with reference to FIGS. 23 to 26. As shown in FIGS. 29, 30, and 31, the outlet main body 81 is provided with a mounting frame 1 to the box on the outside, and accommodates blade holder fittings 82, 82 and wire connection terminals 83, 83 inside. . The wire connection terminal 83 is also constructed by a blade holder 82 and a locking spring 76. The outlet main body 81 further includes a cover 81a and a case 81b. The cover 81a has a rectangular outer shape and has an open back surface. Two insertion parts 85, 85 with a pair of insertion holes 84, 84 are provided on the surface, and these two insertion parts 8
A hole 84 shown in FIG. 29 is provided in the middle or side wall of 5, 85 to expose the neon lamp 86a of the lighting device 86 as shown in FIGS. 23 and 26. The illuminator 8 is installed inside the cover 81a through the opening on the back side.
The cover 81a and the plate 88 shown in FIG. 30 are fitted together with the cover 81a and the plate 88 mounted thereon, and the cover 81a and the plate 88 are attached by means of engaging means provided between the cover 81a and the plate 88, as shown in FIG. As shown in FIG. 30, a pair of through holes 88a, 88a are formed on both sides of the plate 88 at positions corresponding to the insertion holes 84, 84 of the cover 81a, and a lighting device 86 is formed at the intermediate position or at the side edge. A mounting portion 88b is provided. Conductive metal fittings 89, 89 made of a spring material are attached to the attachment portion 88b so as to penetrate through the front and back sides. This conductive metal fitting 89 has one end protruding to the front side as a connection end, and a free end disposed on the back side, and is formed in a chevron shape to take advantage of elasticity and so that the contact surface expands into a planar shape. The illuminating device 86 has a series connection body of a neon lamp 86a and a resistor 86b connected to the connection end by crimping. Further soldering may be applied to the crimp connection to improve the reliability of the connection.

The hole 87 for exposing the neon lamp 86a of the illuminator 86 of the cover 81a is provided with a hole 87 as shown in FIG.
As shown in FIGS. 0 and 33, the lamp cover 81c is engaged to close the hole 87. The lamp cover 81c is made of a transparent material, but if a non-transparent material is used, the side wall is cut out for illumination. A door device 90 shown in FIGS. 30 and 34 is installed between the back surface of the cover 81a provided with the insertion holes 84, 84 and the front surface of the plate 88. This door device 90 includes two doors 91 with a through hole 91a formed therein,
91 and a U-shaped spring plate 92 with a pair of arms that are fitted and attached to the side edges on the back side of the cover 81a, and one door 91 has a frame shape and has an inclined surface on one side. A closing portion 91b is formed. The other door 91 has a frame shape with different thicknesses, and one side thereof has a closing portion 91b having an inclined surface, and a tongue-like piece 91c is formed on the side corresponding to this closing portion 91b. When the two doors 91, 91 are overlapped and combined, the other door 91 overlaps the frame of one door 91, and its tongue-shaped piece 91c overlaps the back surface of the one closing part 91b, and the spring plate Both arms of 92 are door 9
1 and 91 and has a sloped surface.
b, 91b are located directly below the insertion holes 84, 84, and close the insertion holes 84, 84 as shown in FIG.

When the plug 96a is inserted, the plug blade 9
6 and 96 collide with the slope of the closing part 91b and the door 9
1 and 91 are expanded outward against the biasing force of the spring plate 92, and the plug blades 96 and 96 are passed through the in-frame through hole 91a as shown in FIG. When the insertion plug is removed, the closing portion of the doors 91 and 91 is pushed into the insertion hole 8 by the biasing force.
4 and 84 to return to the state shown in FIG.

The case 81b is shown in FIGS. 20, 21, and 22.
As shown in the figure, a storage chamber 9 for the blade holders 82, 82, which has a rectangular shape with an open front surface and is divided into two by an insulating wall 97 provided in parallel in the longitudinal direction.
The insulating wall 97 is cut at the center by supporting walls 99, 99 that intersect with the insulating wall 97, and the terminal chamber 1 is formed between the supporting walls 99, 99 and both side walls.
00 is set. The storage chambers 98, 98 and the terminal chamber 1
In order to insert a tool such as a screwdriver into the center bottom wall of the support wall 99 of the terminal chamber 100, display holes 95 and 96 are provided on the bottom wall of the intersection with the terminal chamber 100 along with conductor insertion holes 93 and 93. A tool insertion hole 95' is provided. This tool insertion hole 95', 95' has a 30th
As shown in the figure, the inclined surface part 77a of the unlocking button 77 which is integrally formed with the inclined surface 77a and the pressing part 77b is made to correspond to each other, and the position between the releasing button 77 and the support wall 99 is determined by a concave-convex engagement. Combine as shown.

Then, use a tool such as a screwdriver to remove the inclined surface portion 77a.
By pressing , the pressing part 77b releases the locking spring 7.
6 is dissociated. The blade holders 82, 82 are attached to the third
As shown in FIGS. 2 and 36, the locking springs 76 supported by the blade holders 82, 82 in the state fitted in the storage chambers 98, 98 are made to correspond to the conductor insertion holes 93, 93, and the display portion 73a and the input wire are connected. The display portion 73a of the display piece 73 which is integrated with the contact portion 75 is inserted into the display holes 95, 95.
to fit. This display piece 73 is formed by the conductor of the input wire l pushing up the contact part 75.
This indicates that a has been pulled in and the electric wire l has been securely held between the contact portion 101 and the locking spring 76.

The cover 81a and case 81b are shown in FIG.
As shown in Figure 0, engaging portions 102, 102 for assembly are provided protruding outward from each side wall. In order to connect the engaging portions 102, 102 together and to attach them to the box x, the outlet main body 81 is provided with a mounting frame 1.

This mounting frame 1 has an insertion portion 8 in FIG.
5, 85, the hole 103a that exposes the engaging portion 10
2, 102 and a small frame portion 103b,
103b, holes 103c, 103c for attaching to the box x, an engagement hole 103d of the fixture 104 shown in FIG. It is formed. Cover 81a and case 81b
, the engaging portions 102, 102 are connected to the small frame portions 103b, 1
03b and when the small frame portions 103b, 103b are caulked, they are firmly connected.

The blade receivers 82, 82 are the terminal portion 8 formed in the middle.
2a is clamped and fixed between the plate body 88 and the bottom wall of the case 81b. In this state, the blade receivers 82b, 82b formed at both ends are in a free state.

The terminal portion 82a is shown in FIGS. 30, 32, and 33.
In the figure, it is bent into an inverted U-shape, and a contact piece 10 corresponding to the energizing metal fitting 89 is attached to one side wall of the bent U-shape.
5' is formed in a protruding manner, and three sets of protruding pieces are formed on the other side wall, with the center serving as a support portion 105 and both sides serving as contact portions 101, 101 for the wire connection terminals 83. As shown in FIG. 30, the terminal portion 82a has both ends of its upper surface connected by bridge-like portions 106, 106, and by opening the gap between them, the locking spring 76 can be inserted and fitted between the contact portion 101 and the support portion 105 from above. It's like this.

Arm portions 107,1 from the bridge portions 106,106
Blade receiving pieces 108, 108 are formed adjacent to the outside of the arm parts 107, 107, with the protruding end of the blade 07 projecting downward and having the protruding end as the base end. The blade receiving pieces 108, 108 have their palms pressed together with a narrowed gap upward, and their upper ends are widened upward to form guide portions for the plug blades 96, 96. The blade receiving piece 10 in the palm-to-hand portion 109
The outer ends of 8 and 108 are brought into contact with each other without any gap as shown in FIGS. 30 and 32, or the gap is made smaller than that of the inner ends. Moreover, the outer end side is the inner end palm position 10
The palm-to-hand position 109b is provided closer to the input side of the plug blades 96, 96 than 9a. Therefore, the plug blade 96, 96
When inserting the
Compared to the case where the entire surface is in contact with each other, it can be inserted easily and removed easily. This blade receiving piece 108, 108
An auxiliary spring 11 made of spring steel has approximately the same shape as the blade receiving pieces 108, 108, and has a larger gap between the palms on the outside and a larger gap on the inside.
0 is packaged. The auxiliary spring 110
09 to provide an appropriate holding force between the blade receiving pieces 108 and 108.

The plate main body 30 has an external shape large enough to close the box hole drilled in the wall surface in FIG.
This embodiment is similar to the embodiment shown in FIG. 1 in that a large rectangular window hole 34 is provided as the frame shape. The back side edge of this window hole 34 is adapted to receive a decorative frame 111 directed inwardly toward the support portions 35, 35'. The upwardly bent piece 5 of the mounting frame 1 is located on this support portion 35', and is engaged with a protrusion 111d formed on the cylindrical portion 111c of the decorative frame 111 shown in FIG. This decorative frame 111 is engaged with the inner side of the metal inner frame 37 and the decorative frame 111 by a concave-convex engagement, or is engaged with the inner wall of the window hole 34 of the plate body 30 by a concave-convex engagement. be able to.

Incidentally, instead of locking the decorative frame 111 to the mounting frame, engaging legs may be provided on the plate main body 30 and the decorative frame 111 may be locked to the upward bent piece 5.

The plate main body 30 is formed by plastic molding of synthetic resin or press working of a metal plate, as in the embodiment shown in FIG. In the case of plastic molding using synthetic resin, it is necessary to have a thin wall for efficiency. In FIG. 33, the back surface of the plate body 30 has protruding ribs 31,
It has 31'. When the plate body 30 comes into pressure contact with a soft wall surface, it sinks and damages the construction surface W.
Furthermore, if the box x is installed with a displacement in the direction of the wall surface, a gap will be created between the plate body 30 and the construction surface w. Thus, a lower frame 24 is provided which overlaps the back surface of the plate body 30.

The plate body 30 and the lower frame 24 are removably assembled by means of concave and convex engagement means, similar to the embodiment shown in FIG. This lower frame 24 can be removed when unnecessary. The middle frame 37 is formed in the same manner as the embodiment shown in FIG. Middle frame 3
There are through holes 11 for fixing screws 40 in the four corners of the peripheral wall of 7.
2,112 will be provided.

One of the corresponding side walls of the peripheral wall of the middle frame 37 has a bridge-shaped part projecting inward, and the back side thereof has a notch 2.
Form 00. The notch 200 is the plate main body 3
The support portion 35' of 0 and the upward bent piece 5 are fitted together.

A decorative frame 111 is fitted into the middle frame 37.
One embodiment of the decorative frame 111 is shown in FIG. 23, and is formed into a rectangular frame shape. Its peripheral wall 1
11a and 111b are sized to be arranged along the inside of the window hole 34 of the plate main body 30 when the middle frame 37 is not used, and to be arranged along the inside of the middle frame 37 when the middle frame 37 is used. It is something. The selection of the presence or absence of the middle frame 37 is made depending on the strength of the plate body 30 and the economical manufacturing of the connector. When the middle frame 37 is used, the support portion 35 of the plate body 30 is sandwiched between the middle frame 37 and the mounting frame 1, and is fixed to the mounting frame 1 with fixing screws 40.

The space surrounded by the peripheral walls 111a and 111b of the decorative frame 111 is filled with a plug 96a as shown in FIG.
The main body storage portion 113 of the decorative frame 111 serves as a fitting portion of the
The insertion parts 85, 8 of the outlet main body 81 are attached to the bottom of the
Position the surface of 5. Thus, the plug blade 96 sinks by the thickness of the decorative frame 111. Therefore, the plug is safe against lateral loads, and there is no possibility that the hand will come into contact with the plug blade 96, which is a live part. The decorative frame 111 protects the insertion plug 96a from strong impacts applied to the insertion plug 96a from the lateral direction. In order to effectively achieve this protection, the corresponding side walls 111b, 111b are provided closer to the body of the plug 96a.

The decorative frame 111 may be made of a transparent material made of transparent synthetic resin. However, when the decorative frame 111 is made of transparent synthetic resin, it is preferable to cover the surface with a suitable non-transparent material. This allows for more illumination inward. When the decorative frame 111 is made of an opaque material, a side wall of the decorative frame 111 is cut out for illumination inward.

In addition, as another embodiment, as shown in FIGS. 26, 27, and 28, the peripheral side wall 111a of the decorative frame 111
A partition wall 114 provided across the space surrounded by the side wall 111b and the partition wall 114 is integrally formed.
A lighting device 86 is housed therein, and both sides of the partition wall 114 are used as lighting parts, and the front side is preferably made into a non-lighting part. The main housing portion 113 of the plug 96a is disposed on both sides of the partition wall 114, and effective illumination can be obtained, so that the number of illuminators 86 may be reduced.

A door 115 is further hinged to the decorative frame 111. This door 115 manually opens and closes the main housing portion 113 of the plug 96a, which is surrounded by the peripheral wall 111a and side wall 111b of the decorative frame 111, as shown in FIGS. 23 and 24. As shown in FIG. 24, the hinge has a bearing 116 integrally formed protruding from the peripheral wall 111a, and the bearing 116 is fitted into the groove 118 of the door 115, so that the shaft 117 passes through the door 115 and the bearing 116.
A spring 1 is installed between the edge of the door 115 and the peripheral wall 111a to hold the door 115 in the appropriate open or closed position.
19a is fired via the tool 119b. Providing such a door 115 prevents fingertips and dust from entering when the device is not in use. In addition, as another embodiment, as shown in FIGS. 26 and 27, the peripheral side wall 11
1a, an elongated hole 121 is formed in the side wall 111b,
A wall shaft 123 is formed with a shaft 122 at both ends and a protruding end facing the shaft 122.
3 is fitted into the elongated hole 121, both end shafts 122 protrude from the surface of the side wall 111b, and bearings 125 formed at the edges of the door 115 are engaged with the both end shafts 122. The protruding end of the wall-like shaft 123 is resiliently biased by a spring 124, thereby holding the door 115 in an appropriate open or closed position. The door 115 in this embodiment opens 180 degrees as shown in FIG. 33 to facilitate its use.

Of course, the door 115 as shown in FIG. 37 may be omitted, or the surface of the insertion portion 85 may be made substantially the same as the surface of the decorative frame 111 in addition to the door 115 being omitted as shown in FIG.

The present invention includes a lower frame that is placed on a mounting surface such as a recessed box or construction surface, and a lower frame that is placed on the surface of the lower frame and fixed to the mounting surface with screws, and a switch body, an outlet body, etc. that is installed in an opening window protruding from the center. a mounting frame into which the instrument body is fitted; and a plate body which has a bottom surface approximately the same size as the lower frame, has a window hole through which the instrument body is exposed, and is assembled to the lower frame with the mounting frame interposed therebetween. Therefore, when screwing and fixing the mounting frame to the mounting surface, even if high-grade wall mounting is used, such as cloth or wall material that is thick and soft, the screwing part will not sink significantly due to the function of the lower frame. As a result, the plate portion including the plate main body does not warp, and therefore the mutual positional relationship between the plate portion, the surface plate, and the mounting frame does not change and is stable. Furthermore, due to the combination of the plate body and bottom frame, the thick plate part can be seen from the mounting surface, giving a solid feel, and the combination line of the plate body and bottom frame can be seen from the side, further enhancing the solidity. This effect is achieved. Further, in the second aspect of the invention, the conductor wire is introduced into the device body through a conductor insertion hole opened on the back side of the device body so as to correspond to a locking spring for locking the conductor supported by the current-carrying metal fitting in the device body. It is slidably housed in an indicator hole that is arranged parallel to the abutting part where the tip of the conductor of the electric wire touches and the conductor insertion hole, and the tip protrudes into and out of the device body from the indicator hole.
It is composed of a display piece integrally formed with a retractable display part, and is equipped with a conductor introduction display means that allows the tip of the display part to be retracted from the display hole when the conductor of the lead-in wire pushes up the abutting part. When connected to a locking spring, the display part of the display piece can be retracted from the display hole by pushing the abutting part of the display piece, and the display part of the display piece can be retracted from the display hole. Accordingly, the connection condition of the electric wires can be easily seen, and the electric wires can be reliably connected to the appliance main body.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view of a first embodiment of the present invention;
Figure 2 is a partially omitted perspective view of the main parts of the same mounting frame as above, Figure 3 is an enlarged exploded perspective view of the main parts of the same as above, and Figure 4 is
The figure is a cross-sectional view of the lower frame of the same as above, Figures 5 a, b, and c are enlarged sectional views of the main parts of the same, Figure 6 a is an enlarged perspective view of the transparent body of the same, and Figure 6 b is the operation of the same as the above. FIG. 7 is an enlarged perspective view of the main body of the above switch, FIG. 8 is an enlarged perspective view of the main parts showing the mounted state of the display element, and FIG. 9 is an enlarged perspective view of the above switch. A schematic configuration diagram showing the relationship between the main body and the operating handle, Fig. 10 is an explanatory diagram of the installation of the same as above, Fig. 11 is a circuit diagram showing an example of the circuit used in the above, Fig. 12
Figures a and b are explanatory diagrams of the operation of the switch body same as above, Figure 13 is a circuit diagram showing another example of the circuit used in the same as above, Figure 14 is an exploded perspective view of the second embodiment of the present invention, Figure 15 is a front view of the same as above, Fig. 16 is an exploded perspective view of the main body of the switch used in the above, Figs. 17a and b are enlarged perspective views of the main parts of the above, respectively, and Figs. Main part front view shown in Figure 19a, b
are respectively a front view and a plan view of the third embodiment of the present invention;
20 is an exploded perspective view of the same as above, FIGS. 21a and 21b are a front view and a plan view of the fourth embodiment of the present invention, respectively, FIG. 22 is a perspective view of the middle frame of the above, and FIG. A perspective view of the fifth embodiment of the invention, FIG. 24 is an exploded perspective view of the door and decorative frame, and FIG. 25 is a rear perspective view of the decorative frame.
FIG. 26 is a perspective view of the sixth embodiment, FIG. 27 is an exploded perspective view of the door and decorative frame, and FIG. 28 is a plate,
An exploded perspective view of the seat frame, decorative frame, and outlet body;
Fig. 29 is an exploded perspective view between the mounting frame and cover, Fig. 30 is an exploded perspective view of the outlet body, Fig. 31 is a plan view of the case, Fig. 32 is a plan view of the case with parts inserted, and Fig. 33 34 is a front view of the illuminator part in cross section, FIG. 34 is a front view of the blade receiver part in cross section,
FIG. 35 is a cross-sectional front view showing the plug-in state, FIG. 36 is a front view showing a cross-section of the wire connection terminal portion, and FIGS. 37 and 38 are views of the seventh and eighth embodiments of the present invention, respectively. FIG. 1...Mounting frame, 5...Bending piece, 5a...Auxiliary fulcrum, 6, 6', 6a, 6b, 6 ₁ , 6 ₂ ... Operation handle, 7a, 7b... Switch body, 81...
Outlet body, 24... lower frame, 30... plate body, 34... window hole, 37... middle frame, 61...
Opening window, 73...display piece, 73a...display section, 7
4... Coil spring, 75... Contact part, 76
... Locking spring, 85 ... Insertion part, 93 ₁ to 93
₄ , 93...Conductor insertion hole, 95...Display hole, 86
...Lighting equipment, 111... Decorative frame, 115... Door.

Claims (1)

[Scope of Claims] 1. A lower frame that is placed on a mounting surface such as an embedded box or construction surface, and a switch that is placed on the surface of the lower frame and fixed to the mounting surface with screws, and that is installed in an opening window drilled in the center. It has a mounting frame into which the main body of the device, such as the main body or the outlet main body, is fitted, and a bottom surface that is approximately the same size as the bottom frame, and a window hole through which the device main body is exposed, and is assembled to the bottom frame with the mounting frame interposed. A wiring device comprising: a plate body; 2. The wiring device according to claim 1, wherein the lower frame is made of a material with high hardness. 3. Claim No. 3 characterized in that the horizontal dimension of the opening in the lower frame is larger than the horizontal dimension of the outer shape of the mounting frame, and the vertical dimension of the opening is smaller than the vertical dimension of the outer shape of the mounting frame. Wiring equipment described in item 1. 4 When using a switch body as the device body and disposing one switch body, loosely fit the single operation handle attached to the switch body into the window hole of the plate body, and connect the two switch bodies. When installing in parallel, use 2 pieces that are 1/2 the size of the single operation handle.
The wiring device according to claim 1, characterized in that two individual operating handles are loosely fitted into the window holes. 5. The wiring according to claim 4, wherein a middle frame fixed to a mounting frame is fitted into the inner peripheral part of the window hole of the plate body, and an operating handle is loosely fitted into the opening surrounded by the middle frame. utensils. 6. A bent piece projecting upward is provided at both ends of the mounting frame in contact with the opening window, and an auxiliary fulcrum for supporting the lower surface of the operating handle is provided protruding from the central upper end surface of the bent piece. The wiring device according to claim 4, characterized in that: 7. The wiring device according to claim 1, characterized in that it uses an outlet main body as the device main body. 8. A side wall that fits into the window hole of the plate body and is arranged along the inside of the window hole, and a decorative frame that uses the space surrounded by the side wall as the main body storage area for the plug. 8. The wiring device according to claim 7, wherein an insertion portion for the outlet body is disposed at the bottom of the wiring device. 9. The wiring device according to claim 8, wherein a side wall of the main body storage section houses a lighting device that is electrically connected to the blade holder of the outlet main body. 10. The wiring device according to claim 7, characterized in that the door is pivotally connected to the decorative frame so as to be openable and closable. 11. The wiring device according to claim 7, wherein the surface of the side peripheral wall of the decorative frame and the surface of the insertion part of the outlet are formed to be substantially the same. 12 A lower frame that is placed on a mounting surface such as a recessed box or construction surface, and a device such as a switch main body or an outlet main body that is placed on the surface of the lower frame and fixed to the mounting surface by screwing, and an opening hole drilled in the center. a mounting frame into which the main body is fitted; a plate main body which has a bottom surface approximately the same size as the lower frame and has a window hole through which the instrument main body is exposed, and which is assembled to the lower frame with the mounting frame interposed;
A contact portion where the tip of the conductor of the electric wire introduced into the device body comes into contact with the conductor insertion hole opened on the back side of the device body so as to correspond to the locking spring for locking the conductor supported by the current-carrying metal fitting in the device body. It is made up of a display piece that is slidably housed in a display hole that is arranged parallel to the conductor insertion hole, and whose tip protrudes from the display hole into and out of the instrument body, and a display part that can be freely retracted. 1. A wiring device comprising a conductor introduction display means for retracting the tip of the display portion from the display hole when the conductor of the wire pushes up the contact portion.