JP7324524B2 - cover material - Google Patents

Description

TECHNICAL FIELD The present invention relates to a cover member, for example, a detachable and replaceable cover member such as a cover of an electric switch or a cover of an outlet socket arranged indoors or outdoors.

The living space in the office is also very important for improving work efficiency. In addition, as people spend more time at home these days, there is a tendency to modify interior decorations to improve comfort.
For example, most electrical switches installed in homes and offices are located at a height where people can see them. It is extremely high.

Cover members (also referred to as decorative covers) for electric switches and the like are usually made of synthetic resin, but they tend to have a dry image.
Therefore, cover members of various materials and designs have been provided in order to improve the designability of the cover members, and by exchanging these as necessary, it is possible to enjoy changes in interior decoration. For example, there are wooden cover members that create a feeling of warmth, and metal cover members that create an industrial feel.

Conventionally, an electric switch is attached and fixed to a wall surface or the like via a mounting plate 5, for example, and the cover member 19 is detachable from the mounting plate 5 via screws 30 so as to hide the mounting plate 5. (see FIG. 6(a)).

However, in the case of this type of structure, the head portion (screw head) of the screw 30 appears on the surface of the cover member 19, which impairs the design of the cover member 19 and, in turn, impairs the design of the entire room. There was also the fear of losing it.

Therefore, as shown in patent documents, various ingenuity has been made so that the cover member can be attached and detached without screws.

In Japanese Patent Laid-Open No. 2004-100002, an engaging element is protruded from the back side of a synthetic resin cover member (decorative plate), and the elasticity of the synthetic resin is used in the mounting hole of the synthetic resin plate mounting frame mounted on the wall surface side. to elastically engage the engaging element.
However, in the case of the configuration disclosed in Patent Document 1, the plate mounting frame is required separately, and it is not possible to simply replace only the cover member.

Therefore, paying attention to the fact that many of the mounting plates used for mounting electric switches and the like are generally made of metal, recently, many detachable cover members using magnets have been provided. .
For example, in Patent Documents 2 to 4, a magnet portion 29 having a strong magnetic attraction force such as a neodymium magnet is fixed to the back side of the cover member 19, and attached to and detached from the surface of the metal mounting plate 5 via the magnet portion 29. It adopts a structure that enables magnetic attraction (see FIG. 6(b)).
According to such a structure, only the cover member can be easily replaced without taking extra time and effort.

However, some mounting plates are made of synthetic resin, and in such cases, the cover member cannot be magnetically attached to the mounting plate in a detachable manner.
In addition, some of the mounting plates have unique shapes in order to differentiate them from other companies' products or to comply with specifications such as the mounting location. In such a case, it is possible that the mounting plate portion (metal portion) serving as the fixing region does not exist at the position corresponding to the magnet portion fixedly attached to the back side of the cover member. Therefore, the cover member cannot be attached in a detachable and replaceable manner. Moreover, even if there is a metal fixing area at the position corresponding to the magnet, the fixing area may be extremely narrow (there are few metal parts), and the attachment of the cover member may become unstable. Ta.

Furthermore, since the structure is simple, in which the cover member is fixed to the mounting plate only by the magnetic attraction force of the magnet, the fixed position may shift and the cover member may tilt or the cover member may tilt when receiving an impact. However, there is a risk that it may come off and fall.

JP-A-51-17596 Utility Model Registration No. 3040100 Japanese Utility Model Publication No. 41-24195 Japanese Utility Model Laid-Open No. 57-149617

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art. To provide a cover member free from the risk of slippage.

In order to solve the above-mentioned problems, the first technical means of the present invention is to detachably attach a switch part or an electrical part plug-in part to a mounting plate arranged on the wall side through a magnet. A cover member that covers a predetermined area of
On the back side,
a magnet portion provided at a position capable of being magnetically attached to the screw head appearing on the surface of the mounting plate;
a deviation prevention protrusion provided at a position that can be inserted into the hole provided in the mounting plate;
including
In the cover member, the deviation preventing protrusion is provided with an uneven portion on an outer peripheral surface thereof .

According to a second aspect of the present invention, in the first aspect of the present invention, the magnet portions are provided one by one on the same axis in the longitudinal direction of the cover across an opening facing the switch portion or the outlet insertion portion. cage,
The cover member is characterized in that the anti-slip projections are provided one by one along the respective magnets on the axis.

A third aspect of the present invention is the cover member according to the second aspect of the present invention, wherein the uneven portion is spirally formed on the outer peripheral surface of the protrusion.

A fourth aspect of the present invention is the cover member according to any one of the first to third aspects of the present invention, wherein the magnet portion has an elliptical shape in plan view.

A fifth aspect of the present invention is the cover member according to the fourth aspect of the present invention, wherein the holes are screw holes provided in the mounting plate.

According to the present invention, it is possible to provide a cover member that is detachable and replaceable via a magnet, can be used in a wide range of applications, and is free from the risk of displacement of the fixing position.

(a) is a front view, a side view, and a bottom view showing one embodiment of the cover member of the present invention, and (b) is a rear view. (a) is a front view showing respective cross-sectional indication lines, (b) is a cross-sectional view along the b-b line in (a), (c) is a cross-sectional view along the c-c line in (a), (d) ) is a sectional view taken along line dd of (a). FIG. 4A is a front view of a mounting plate attached to a wall surface, and a front view of a state in which the cover member of the present invention is mounted on the mounting plate. Fig. 2 shows a mounting state of the cover member of the present invention, wherein (a) is a cross-sectional view showing the separated state of the cover member and the mounting plate of the present invention, and (b) is a cross-sectional view showing the state where the cover member of the present invention is magnetically attached to the mounting plate; is. (a) is a front view showing another embodiment of the cover member attached in such a state that the upper and lower screw heads on the mounting plate are displaced in the horizontal direction, and (b) is (a); FIG. 11 is a rear view of a cover member of another embodiment shown in . 1 is a schematic diagram showing a prior art; FIG.

Hereinafter, one embodiment of the cover member of the present invention will be described by taking the switch cover of the electric switch shown in the accompanying drawings as an example. It should be noted that this embodiment is merely one embodiment of the present invention, and is not to be construed as being limited to this, and design changes are possible within the scope of the present invention.

The electric switch 1 assumed in this embodiment is housed in a housing area provided in the wall surface, and is mounted on the back side of a metal mounting plate (also referred to as a mounting frame) 5 arranged from the surface side of the wall surface. Assume a well-known general form in which it is attached and fixed via screws 11 , 11 . Therefore, in the mounted state of the electric switch 1, the screw heads 13, 13 of the mounting screws 11, 11 are exposed through the mounting holes 9, 9 on the surface side of the mounting plate 5. As shown in FIG. Since the mounting screw 11 has a large fixing area with the magnet portion 29, a general countersunk screw is assumed in the present embodiment, but the interpretation is not particularly limited.

The mounting plate 5 is in the form of a long rectangular thin plate, and has a long rectangular opening in the central region where three switch units 3 are arranged side by side in the vertical direction (the length direction L1 of the mounting plate 5). Mounting screws 11 for mounting and fixing the electric switch 1 are provided on both upper and lower sides of the opening 7 on both sides of the opening 7 on the central axis Ax1 in the length direction (L1). , 11 are provided.
The opening 7 is formed in such a size that a slight gap is formed between the opening 7 and the switch section 3 . The mounting hole 9 is formed in an elliptical shape elongated in the left-right direction.
Further, screw holes (hole portions) 15, 15 having a predetermined diameter are provided outside the respective mounting holes 9, 9 on the central axis Ax1. The screw holes 15, 15 are provided with a female screw portion on the inner peripheral surface, and penetrate through the top surface of the bridge portions 14, 14 integrally formed at a desired height from the surface of the mounting plate 5. .
A second screw hole (not shown) having the same hole diameter as the screw holes 15, 15 is coaxially formed in the surface region of the mounting plate 5 facing the screw holes 15, 15. As shown in FIG.
The mounting plate 5 is assumed to have a well-known general form, and the positions of the mounting holes 9 in which the mounting screws 11 are arranged, the positions of the screw holes 15, and the like are applied as they are.

A cover member (also referred to as a decorative cover) 19 is made of a wooden material in the present embodiment. It is composed of a magnet part 29 and a deviation prevention protrusion 31 provided in the.

On the inner surface side (rear side) of the cover member main body 21, there is formed a housing recess 22 capable of housing so as to surround the mounting plate 5 arranged at a predetermined height on the surface side of the wall surface.

The housing recess 22 is formed by first stepped portions 23, 23 formed one step lower than the peripheral portion 20 on the back side, and a second stepped portion 25 formed one step lower than the first stepped portion 23. The first stepped portions 23 , 23 are provided with magnet portions 29 , 29 and displacement prevention protrusions 31 , 31 , and the second stepped portion 25 is provided with an opening 27 .

The opening 27 is formed in a long rectangular shape in the central region of the second stepped portion 25 so that the three switch portions 3 can be arranged side by side in the vertical direction (longitudinal direction L1).
The opening 27 is formed in an elongated rectangular shape substantially the same as the opening 7 of the mounting plate 5 .

The magnet portions 29, 29 are embedded in the first stepped portions 23, 23, respectively, on the same central axis line Ax1 in the length direction L1, with the opening portion 27 facing the switch portion 3 interposed therebetween.
In this embodiment, the magnet portion 29 is embedded at a position close to the opening 27 so as to be substantially flush with the surface of the first stepped portion 23 .

In this embodiment, the magnets 29, 29 are assumed to be neodymium magnets formed in a perfect circular shape with a predetermined diameter to cover at least the entire area of the screw heads 13, 13 appearing on the surface of the mounting plate 5. FIG. According to the present embodiment, since the magnet portion 29 is formed in a size that covers the entire area of the screw head 13, the magnetic attraction force is strong and the mounting and fixing can be performed firmly.
The size (diameter), shape, etc. of the screw head 13 are arbitrary as long as the screw head 13 can be magnetized.

The deviation prevention projections 31, 31 are provided on the central axis Ax1 and outside the respective magnet portions 29, 29 so as to protrude from the surfaces of the first stepped portions 23, 23, respectively.

The displacement prevention protrusions 31, 31 are inserted into the screw holes 15, 15 provided in advance in the mounting plate 5 to prevent the cover member 19 from being displaced in the vertical and horizontal directions (all directions). Therefore, the deviation prevention protrusion 31 is embedded so as to protrude from the surface of the first stepped portion 23 with a length that allows it to be inserted into the screw hole 15 .
The displacement prevention projection 31 is formed in a columnar or cylindrical shape with a diameter slightly smaller than that of the screw hole 15, and has an uneven portion 33 on its outer peripheral surface.
The projecting shape of the anti-slip portion 31 can be appropriately modified within the scope of the present invention.

The uneven portion 33 is spirally formed on the outer peripheral surface of the deviation prevention protrusion 31, and in this embodiment, a male screw portion is formed. Since the outer peripheral surface of the anti-slip portion 31 is provided with the male screw portion as the uneven portion 33, even if the cover member 19 is subjected to some kind of impact, the female screw portion inside the screw hole 15 will be held in place by the anti-slip portion 31. The externally threaded portion 33 is locked to prevent slippage.
The uneven shape of the uneven portion 33 is not particularly limited as long as it is provided to such an extent that it does not hinder the insertion into the screw hole 15 .

According to this embodiment, the upper and lower magnet portions 29, 29 provided on the back side of the cover member 19 are magnetically attached to the screw heads 13 of the mounting screws 11 exposed on the front side of the mounting plate 5 disposed on the wall side. At the same time, the upper and lower anti-slip projections 31 are inserted into the upper and lower screw holes 15 provided in the mounting plate 5 .
As a result, it is detachably fixed to the mounting plate 5 by the strong magnetic attraction force of the magnets 29 and 29, and the displacement prevention projection 31 can prevent displacement in all directions.
Therefore, since the screw head 13 to which the magnet portion 29 is magnetically attached and the screw hole 15 into which the displacement prevention protrusion 31 is inserted are generally provided in advance on the mounting plate 5 side, the mounting plate 5 The side does not need to be particularly improved or replaced separately, and can be used as it is.
Therefore, it is possible to freely and easily replace various cover members 19 with materials, colors and patterns according to taste.
With this configuration, even if the cover member 19 is detachable and replaceable via a magnet, it can be widely used, and there is no fear that the fixing position will shift, so that the cover member 19 is tilted and fixed. There is no fear that it will be done. That is, since a slight gap is formed between the switch portion and the opening for ease of installation, the magnetic attachment by the magnet portion 29 alone may tilt up, down, left and right due to some impact due to the gap. This is because there is a risk that it may be attached by force.

In this embodiment, an embodiment in which the anti-slip protrusion 31 is provided on the outside of the magnet portion 29 will be described. is also possible and within the scope of the present invention.
Moreover, although the magnet portion 29 is embedded so as to be substantially flush with the surface of the first stepped portion 23 , the surface of the magnet portion 29 is embedded so as to protrude from the surface of the first stepped portion 23 . There may be.

In this embodiment, the entire cover member 19 has an elongated rectangular shape, and an opening 27 is formed in the elongated rectangular hole so that the three switch portions 3 are aligned in the vertical direction. , and should not be construed as being limited thereto, and other forms may be employed within the scope of the present invention. For example, the entire cover member body can have various shapes such as a circular shape and a star shape. Further, the shape and size of the opening facing the switch can be arbitrarily changed according to the shape and number of the switch.
"other embodiments"

FIG. 5 shows another embodiment of the present invention, which is characterized by the form of the magnet portion 29 provided on the cover member 19. As shown in FIG.
A general mounting plate 5 of this type is provided with a roughly large elongated mounting hole 9 for screwing and fixing the electric switch 1 to the rear side (see FIG. 3).
This is so that when the electric switch 1 is attached, it can be finely adjusted in the left-right direction depending on various circumstances such as installation space on the back side of the wall.
Therefore, the mounting screws 11, 11 may be mounted so as to be shifted to the left and right (see FIG. 5(a)).
In such a state, when the cover member 19 is attached, the positions of the magnet portions 29, 29 on the back surface of the cover member 19 are shifted in the left-right direction from the screw heads 13, 3 of the attachment screws 11, 11. Problems can also arise that the member 19 is misaligned, or that it is only partially affixed and thus easily dislodged.

Therefore, in the present embodiment, as shown in FIG. 5, the magnet portion 29 has an elliptical shape elongated in the left-right direction (see FIG. 5(b)).
With this configuration, even if the screw heads 13, 13 of the mounting screws 11, 11 are shifted in the left-right direction, the elliptical magnet portions 29, 29 that are elongated in the left-right direction are attached to the screw head 13. , 13, the cover member 19 can be attached to the mounting plate 5 with a strong magnetic force (see FIG. 5(a)).

The present invention is applicable not only to electric switch covers and outlet covers, but also to detachable cover members in general, such as antenna terminal outlet covers and operation section covers for various electrical components.

1 Electric switch 3 Switch part 5 Mounting plate 7 Opening 9 Mounting hole 11 Mounting screw 13 Screw head 15 Screw hole 19 Cover member 21 Cover member main body 27 Opening 29 Magnet part 31 Anti-slip projection

Claims (5)

A cover member that is detachably attached to a mounting plate arranged on the wall surface side via a magnet and covers a predetermined area of a switch section or an outlet insertion section of an electrical component,
On the back side,
a magnet portion provided at a position capable of being magnetically attached to the screw head appearing on the surface of the mounting plate;
a deviation prevention protrusion provided at a position that can be inserted into the hole provided in the mounting plate;
including
The cover member , wherein the deviation prevention projection has an uneven portion on an outer peripheral surface thereof . The magnets are provided one by one on the same axis in the longitudinal direction of the cover across an opening facing the switch or the outlet insertion part,
2. The cover member according to claim 1, wherein the anti-slip protrusions are provided one by one along the axis along the respective magnet portions. 3. The cover member according to claim 2, wherein the uneven portion is spirally formed on the outer peripheral surface of the protrusion. 4. The cover member according to any one of claims 1 to 3, wherein the magnet portion is elliptical in plan view. 5. The cover member according to claim 4, wherein the hole is a screw hole provided in the mounting plate..

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