JPH0568314A - Wiring appliance - Google Patents

Abstract

PURPOSE:To manufacture easily various kinds of round appliances meeting needs by selecting, according to the kind of an appliance, a center frame to be inserted in a freely removable state into the center opening of a round plate frame to be fitted to an erectron face. CONSTITUTION:A center frame 9 to be inserted into the opening of a round plate frame 1 in a freely removable state to be fitted to an erectron surface is provided. The fixing protrusions 15 of a switch 14 are inserted into the fixing holes 13 of the center frame 9. A round handle 22 is fitted to the upper surface of the switch 14, and the outside diameter of the handle 22 is made smaller than the inside diameter for a decorative plate 28. The center frame 9 keeps a switch, an outlet, etc., inside in a freely removable state. Besides, a plurality of kinds of center frames are prepared depending on the series of switches and outlets. Then an apporpriate center frame is selected and fitted to the opening section 2. This makes it possible to easily manufacture various kinds of round appliances which meet needs.

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 building surface.

[0002]

2. Description of the Related Art A plate frame for arranging equipment such as switches and outlets on a construction surface is generally rectangular.

[0003]

However, recently, there has been an active need for round wiring devices. Further, when the plate frame is rectangular, the hole to be bored on the construction surface is also rectangular, and there is a problem that the drilling work is troublesome. The purpose of the present invention is to provide a round wiring device.

[0004]

DISCLOSURE OF THE INVENTION The present invention is directed to a round plate frame having an opening at a substantially central portion and fixed to a construction surface, and a switch or an outlet which is detachably attached to the opening of the plate frame. It is configured by a plurality of types of middle frames provided with a holding portion for detachably mounting instruments such as.

[0005]

Thus, the tool used in the rectangular plate frame is selected from the middle frames corresponding to the type of the mounting means, and is mounted on the round plate frame through the selected middle frame. By doing so, it is possible to provide a round wiring device that meets the needs, and since the holes on the construction surface may be circular, it is possible to smoothly perform the drilling work using a drill.

[0006]

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

A screw 5 having a screw stop 4 made of synthetic resin attached to the base thereof is arranged through an insertion hole 6 of the plate frame 1, and a scissors 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 periphery of the plate frame 1 and the scissors metal fitting 7, and the plate frame 1 is arranged on the construction surface. Also, the plate frame 1
Screw holes 8 for screwing directly to the construction surface are drilled on both sides of.

Locking pawls 10 are integrally formed on both sides of both side pieces of a middle frame 9 which is detachably mounted in the opening 2 of the plate frame 1, and is formed inside the opening 2 of the plate frame 1. Has a locking recess 11 into which the locking claw 10 is inserted and locked. The side pieces 12 on both sides of the middle frame 9 have a pair of locking holes 13
2 sets are perforated. The locking hole 13 constitutes a holding portion.

A switch 14 is disposed inside the middle frame 9, and a pair of locking protrusions 15 projecting from both sides of the switch 14 are inserted and locked in the locking holes 13 of the middle frame 9. Then, the switch 14 is detachably attached to the middle frame 9. The middle frame 9 has a size such that two switches 14 can be mounted, but in the case of FIG. 1, one switch 14 is mounted. In this case, the locking projections 15 of the switch 14 are locked in the two locking holes 13 inside the middle frame 9.

The middle frame 9 is used when the instrument is a piano-operated push button switch 14, and the locking hole 1
Two sets of 3 are provided on both sides so that two switches 14 can be attached. Since the middle frame 9 is shared between the case where two switches 14 are mounted and the case where one switch is mounted, the inner locking holes 13 are formed to have a wider width than the outer side for pitch adjustment.

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

A handle 22 for operation, which is detachably mounted on the upper 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 side.
A display window 24 is formed on the other end side. Switch 14
A display section 25 for lighting and displaying is provided on the upper surface of the, and a lens 26 that collects the light of this display and transmits it to the display window 24 is attached to the lower surface of the handle 23.

A decorative plate 28 having an opening 27 slightly larger than the handle 23 formed inside has a round frame shape. As shown in FIG. 2, a locking claw 29 is integrally formed on the back surface. Has been done. By inserting and locking the locking claw 29 into a locking recess 30 formed in the plate frame 1, the decorative plate 28 is detachably attached to the plate frame 1.

FIG. 2 showing the rear surface of the decorative plate 28.
As shown in FIG. 5, a rib 31 for guiding the fitting with the plate frame 1 is formed around the back surface of the decorative plate 28.
A rib 32 for hiding the inside is integrally formed along the opening 27. In addition, when assembling the switch 14, the middle frame 9
Then, the device such as the switch 14 can be fixed to the plate frame 1 by the procedure of mounting the middle frame 9 to the plate frame 1 by mounting it to

By the way, the switch 14 has a structure as shown in FIG. That is, a push button 33 that is pushed by the handle 22 and is movable in the vertical direction, a spring 34 that biases the push button 33 upward, and a spring 34 that is biased by the spring 34 and is mounted on the lower surface of the push button 33 so as to be movable laterally. The slider 35 is configured to include a slider 35 and a reversing handle 36 that is reversed by moving the slider 35 downward.

When the slider 35 moves downward, the engaging protrusion 37 of the reversing handle 36 is urged to rotate the reversing handle 36, and the engaging protrusion 37 engages with the slider 35 by the rotation of the reversing handle 36. The joint portion 38 is pushed to move the slider 35 laterally. When the reversing handle 36 rotates and reverses, the opening / closing plate 40 connected by the coil spring 39 reverses and switches the contacts.

Next, the mounting structure and operation of the handle 22 will be described. 3 to 5, one end of the lower surface of the handle 22 has a fulcrum rib 41 that has elasticity when the device is operated.
And a pair of stopper ribs 42 having elasticity at the time of returning from the operation. A rib 43 serving as a stopper during operation is provided outside the stopper rib 42.
Is formed, and an action point rib 44 for pressingly contacting the protrusion 45 of the push button 33 of the switch 14 is integrally provided at the center of the lower surface of the handle 22.

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

When the depression 23 of the handle 22 is pushed with a fingertip, as shown in FIGS. 3 and 5, the fulcrum rib 41 is pivoted, and the action point rib 44 is pushed by the push button 3 of the switch 14.
The protrusion 45 of No. 3 is pressed and 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 holds the state. When the handle 22 is pushed again, the push button 33 is pressed and the contacts are reversed and returned.

FIG. 6 shows a case where two switches 14 are mounted. In this case, as shown in FIG.
The upper and lower handles 22a and 22 are semicircular in order to correspond to
The switches b are attached to the switches 14, respectively.
Note that FIG. 6B shows a state in which the handle 22 is pushed, and a box 48 for protecting the switch 14 is detachably attached to the back surface of the plate frame 1.

By the way, when a switch or an outlet as a device to be mounted on a general standardized mounting frame is mounted on the plate frame 1, an inner frame having a different structure from the inner frame 9 is used. That is, the inner frame 49 has a structure as shown in FIG. 8, and has locking claws that are locked in the locking recess 11 of the plate frame 1 from both sides of both ends of the rectangular frame-shaped inner frame 49. 51 is integrally projected.

A pair of locking holes 56 into which locking projections 55 projecting from the assembly frame 54 of the outlet 50 are inserted and locked are formed in one side piece 52 of the middle frame 49. An elastic piece 57 is formed on the other side piece 53, and step portions 58 to which the locking projections 55 of the outlet 50 are locked are formed on both sides of the elastic piece 57. The attachment of the outlet 50 to the middle frame 49 is the same as that of a normal mounting frame. The engaging protrusion 55 of the outlet 50 is inserted into the engaging hole 56 and engaged, and the other engaging protrusion 55 bends the elastic piece 57. Although it is not, it is locked to the step 58. When detaching the outlet 50, the elastic piece 57 is bent outward at the tip of the driver so that the locking projection 55 is pulled from the step 58.
It is done by removing.

In the case of FIG. 8, an outlet 5 is used as a device.
Although 0 is shown, it goes without saying that a switch may be used. Further, the retaining hole 56, the elastic piece 57 and the like constitute a holding portion. FIG. 9 shows a middle frame 4 in which two outlets 50 can be mounted.
9 in this case, two pairs of locking holes 56 and elastic pieces 57 are provided in this case. FIG. 10 shows a case where two switches 59 are mounted on the middle frame 49 and the middle frame 49 is mounted on the plate frame 1. Here, the switch 59 is a seesaw type switch, and a swingable operation handle 60 is provided on the front surface.

[0024]

As described above, according to the present invention, a round plate frame having an opening at a substantially central portion and fixed to a construction surface, and a switch or an outlet which is detachably attached to the opening of the plate frame. Since it is configured with a plurality of types of middle frames provided with a holding part for detachably mounting equipment such as, etc., the types of mounting means that are different for the equipment used in the square plate frame due to different series It is possible to provide a round wiring device that meets the needs by selecting the corresponding middle frame according to the above and mounting it on the round plate frame through the selected middle frame. Since the holes of the above may be circular, the drilling work can be smoothly performed by using a drill.

In addition, since the holding portion for mounting one or two instruments is provided in the middle frame, the common plate frame is
It can be used for individual and two pieces.

[Brief description of drawings]

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

FIG. 2 is a rear view of the same decorative plate.

FIG. 3 is a cross-sectional view of the above switch.

FIG. 4 is a sectional view of the above handle.

FIG. 5 is an overall cross-sectional view of the above.

6A and 6B are a plan view and a sectional view of the same as above.

7 (a) and (b) are plan views of handles for two of each.

8A and 8B are a plan view and a side view of another embodiment of the middle frame of the above.

9 (a) and 9 (b) are a plan view and a side view of the above-mentioned two middle frames.

FIG. 10 is a plan view and a cross-sectional view when the switch of the above is mounted.

[Explanation of symbols]

 1 Plate frame 2 Opening 9 Middle frame 14 Switch

Front page continued (72) Inventor Hideki Yokoyama 1048 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Works Co., Ltd.

Claims (3)

[Claims] 1. A round plate frame having an opening at substantially the center and fixed to a construction surface, and a device such as a switch or an outlet that is detachably mounted inside the opening of the plate frame. Wiring equipment comprising a plurality of types of inner frames provided with a holding section for 2. The wiring device according to claim 1, wherein a holding portion for mounting one device is provided on the inner frame. 3. The wiring device according to claim 1, wherein a holding portion for mounting two devices is provided on the middle frame.