JP4516633B2 - Makeup frame mounting structure - Google Patents

Description

  The present invention relates to a decorative frame mounting structure, and more particularly to a decorative frame mounting structure suitable for mounting a decorative frame for holding an operation panel in a flash valve device.

As this kind of decorative frame mounting structure, a structure disclosed in Patent Document 1 below is known.
In the device disclosed in Patent Document 1, a fixing screw is inserted into a screw hole provided in a decorative frame, and is screwed into a mounting plate so that the decorative frame is fixedly attached to a wall.
The mounting plate itself is also fixed to the wall with screws.

  However, when the decorative frame is attached and fixed to the wall with the fixing screw in this way, if the electric wiring is applied to the back of the wall, the fixing screw may penetrate the electric wiring and damage it, In this case, the bare wire touches the fixing screw and electricity flows into the fixing screw.

  Also, a clamping plate is arranged on the back of the wall, the clamping plate and the decorative frame are fastened with fixing screws, and the decorative frame is attached and fixed to the wall so that the wall is clamped from both inside and outside by the clamping plate and the decorative frame. In this case, the sandwiching plate pinches the electrical wiring behind the wall and damages it as well, and the bare wire directly contacts the fixing screw or contacts through the clamping plate, and the electric wire reaches the fixing screw. Will flow in.

Thus, when the surface layer on the front surface of the decorative frame is a conductive metal layer, the electricity flowing into the fixing screw further flows into the metal layer on the surface of the decorative frame.
And if electricity flows into the surface layer of the decorative panel in this way, the user operates the operating portion of the operating panel, particularly when the decorative frame holds the operating panel such as the flash valve device. When touching the makeup frame, there is a problem of electric shock.

No. 7-16827

  The present invention is based on the above circumstances, and when the decorative frame is attached and fixed to the wall with a fixing screw, the fixing screw should be in conduction with the bare electric wire on the back of the wall. Even in such a case, an object is to provide a makeup frame mounting structure that prevents electricity from flowing into the front surface of the makeup frame and does not cause a problem of electric shock when the user touches the makeup frame. It was made.

Thus, according to the first aspect of the present invention, a decorative frame made of resin and having at least a front surface metal layer as a metal layer is attached and fixed to a wall with a fixing screw inserted through a screw hole provided in the decorative frame. in the mounting structure of a decorative frame without, the area around the screw holes of the front surface of the decorative frame and the insulating layer, the insulating layer is characterized in that are constituted by an insulating coating film.

According to a second aspect of the present invention, in the first aspect , the formation portion of the insulating layer is partially concave or convex before the formation of the insulating layer.

Effects and effects of the invention

  As described above, according to the present invention, in a fixing structure in which a decorative frame having at least a front surface layer made of a metal layer is attached and fixed to a wall with a fixing screw, a portion around a screw hole on the front surface of the decorative frame is configured as an insulating layer. Therefore, according to the present invention, even if electricity flows into the fixing screw, the portion around the screw hole on the front surface of the decorative frame is configured as an insulating layer. Therefore, it is possible to prevent electricity from flowing into the front surface of the decorative frame, and thus, it is possible to solve the problem of electric shock when the user touches the front surface of the decorative frame.

The present invention is suitable for application to a resin surface having a metal plating layer formed thereon.
In this case, usually, the outer surface including the rear surface of the decorative frame is entirely made of a metal plating layer.
In this case, it is desirable that the portion around the screw hole on the rear surface is also configured as the insulating layer.
In the present invention, our Ku constitute the insulating layer with an insulating coating film.
In this case, a coating film is formed by applying an insulating paint around the screw hole, and in this state, metal plating is applied to the resin surface of the decorative frame, so that the screw hole is easily made an insulating layer. be able to.

In the case of this partially concave formation of the insulating layer around the screw hole before forming an insulating layer may be left without a convex (claim 2).
In this way, when the operator applies the insulating paint manually, it is only necessary to apply the paint to the concave or convex surface, the application range of the paint becomes clear, and the application work is easy and reliable. Insulating paint can be applied over the necessary range.

  The present invention is particularly applicable when the decorative frame is used for holding an operation panel in a flash valve device.

Next, an embodiment in which the present invention is applied to attachment of a decorative frame for holding an operation panel in an automatic flash valve device will be described in detail with reference to the drawings.
1 to 3, reference numeral 10 denotes a wall, and an attachment hole 12 is provided.
Reference numeral 14 denotes a decorative frame disposed on the front side of the wall 10, and reference numeral 16 denotes a metal clamping plate disposed on the back side of the wall 10. The decorative frame 14 and the clamping plate 16 are attached to four fixing screws 18. The screw is fastened.
Based on the screw fastening force, the decorative frame 14 and the clamping plate 16 are attached and fixed to the wall 10 so as to clamp the wall 10 from both the front and rear sides.

As shown in FIGS. 2 and 4, the decorative frame 14 has a rectangular frame shape, and magnets 20 are attached to the left and right sides of the decorative frame 14. The operation panel 22 is held by the decorative frame 14.
Here, the operation unit unit 24 is fixed to the operation panel 22 on the rear side by a set screw 26. Reference numeral 28 denotes a push button type operation unit.
The decorative frame 14 is provided with a recess 50 for fitting on the front side, and the operation panel 22 is fitted therein and held in that state by the magnet 20.

As shown in FIG. 2, the sandwiching plate 16 also has a rectangular frame shape, and sandwiching claws 30 that are bent at right angles to the side of the wall 10 protrude from the four corners of the sandwiching plate 16. Is abutted against the rear surface of the wall 10 to hold the wall 10 from the rear side.
The clamping plate 16 is formed with female screw portions 32 at each corner portion, and the fixing screw 18 is screwed into the female screw portions 32.

As shown in the partially enlarged view of FIG. 2, the decorative frame 14 is provided with a protruding portion 34 that protrudes in a semicircular shape at each corner portion, and a screw hole 36 is formed at the center of the protruding portion 34. Has been.
The fixing screw 18 is inserted into the screw holes 36, and the female screw portions 32 of the clamping plate 16 on the back side of the wall 10 so that the heads 38 are seated around the screw holes 36 on the front surface of the decorative frame 14. Screwed into.

  The decorative frame 14 is made of resin, and a metal plating layer 40 is formed on the resin base 39 (see a partially enlarged view of FIG. 4) on the entire outer surface excluding the portions around the screw holes 36 on the front and rear surfaces. Is formed.

  On the other hand, an insulating coating film (insulating layer) 42 is formed on the entire periphery of the front surface and the rear surface of the decorative frame 14 around the screw hole 36, so that the metal fixing screw 18 and the decorative frame 14 are formed. The metal plating layer 40 is electrically insulated by these insulating coatings 42.

  The decorative frame 14 is formed with arcuate ridges 40 around the screw holes 36 on both the front surface and the rear surface, and a portion on the inner side of the ridges 46, that is, a portion on the screw hole 36 side, is a concave surface 48. An insulating coating 42 is formed on the concave surface 48.

  In the mounting structure of the present embodiment, when fixing the decorative frame 14 to the wall 10, when the fixing screw 18 is screwed through the screw hole 36 of the decorative frame 14, the tip of the fixing screw 18 is attached to the wall 10. The fixing screw 18 and the decorative frame may be damaged even if the fixing screw 18 comes into contact with or penetrates the electric wiring on the back side of the wire and the fixing screw 18 comes into contact with the bare electric wire and electricity flows into the fixing screw 18. 14 is electrically insulated from the metal plating layer 40 on the outer surface 14 by the insulating coating film 42, so that electricity does not flow into the metal plating layer 40, so that the user can touch the front surface of the decorative frame 14. There will be no electric shock even if you touch the

  In this embodiment, both the front surface and the rear surface of the decorative frame 14 are formed with a concave surface 48 before the formation of the insulating coating film 42 on the front surface and the rear surface. It is easy to apply the coating when applying the coating, and since the coating range of the coating is clear, the insulating coating can be reliably applied over the necessary range.

In addition, when metal plating is performed on the outer surface of the decorative frame 14, first, an insulating coating is applied in advance to a portion around the screw hole 36 to form an insulating coating 42. In this state, metal plating is applied to the surface of the resin base material 39 constituting the decorative frame 14.
At this time, since the portion around the screw hole 36 is masked by the insulating coating film 42, the metal plating layer is not formed there, and the metal plating layer is automatically formed only on the portion except this. Is done.

  In the above embodiment, the ridge 46 is provided so as to surround the screw hole 36, and the concave surface 48 is formed on the inner side by the formation of the ridge 46, but as shown in FIG. It is possible to form a concave surface 48 based on the stepped shape, or to form a convex surface 52 around the screw hole 36 as shown in FIG. It is also possible to form the insulating coating film 42 there.

  In addition, the present invention is particularly suitable when applied to a decorative frame for holding an operation panel in a flash valve device, but it can also be applied to various other decorative frames attached to a wall, etc. The present invention can be configured in various modifications without departing from the spirit of the present invention.

It is a figure which shows the attachment structure of the makeup | decoration frame of one Embodiment of this invention in a makeup | decoration frame attachment state. It is a perspective view which decomposes | disassembles and shows the attachment structure of FIG. 1 to each member. It is side surface sectional drawing which decomposes | disassembles and shows the attachment structure shown in FIG. 1 to each member. It is a figure which shows the makeup | decoration frame in FIGS. 1-3 in a single-piece | unit state. It is a figure which shows the principal part of other embodiment of this invention.

DESCRIPTION OF SYMBOLS 10 Wall 14 Makeup frame 18 Fixing screw 22 Operation panel 36 Screw hole 40 Metal plating layer 42 Insulating coating 46 Projection 48 Concave surface 52 Convex surface

Claims (2)

A makeup frame mounting structure in which a decorative frame made of resin and having at least a front surface layer of which is a metal layer is fixed to a wall with a fixing screw inserted into a screw hole provided in the decorative frame. A portion around the screw hole on the front surface of the frame is an insulating layer ,
Mounting structure of a decorative frame to which the insulating layer is characterized in that are constituted by an insulating coating film. 2. The decorative frame mounting structure according to claim 1 , wherein a portion where the insulating layer is formed is partially concave or convex before the insulating layer is formed.

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