Wiring device cover
By integrating an insulating portion on the metal cover of the wiring device cover, the issue of unwanted current flow through metal covers is resolved, ensuring safe and reliable operation.
Patent Information
- Application Number
- JP2023191227
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-11-09
- Publication Date
- 2025-05-21
AI Technical Summary
Metal wiring device covers can conduct electricity when they come into contact with plug blades, leading to unwanted current flow.
Incorporating an insulating portion on the metal cover of the wiring device cover to prevent contact between the plug and the metal cover, thereby isolating the metal from electrical currents.
The insulating portion effectively prevents the metal cover from conducting electricity when in contact with plug blades, ensuring safe and reliable operation of the wiring device.
Smart Images

Figure 2025078921000001_ABST
Abstract
Description
[Technical field]
[0001] The present invention relates to a wiring device cover that opens and closes a wiring device embedded in a top plate, wall, etc. of furniture, a building, etc. [Background technology]
[0002] Wiring devices such as power outlets, USB outlets, USB connectors, LAN connectors, etc. are embedded in the tops, walls, etc. of furniture, buildings, etc. To improve appearance, the wiring devices are covered with wiring device covers that can be opened and closed (see Patent Document 1).
[0003] The wiring device cover includes a cover body having an opening through which the wiring device is exposed, and a slide cover that slides relative to the cover body to openably and closably cover the opening of the cover body.
[0004] When using the wiring device, the sliding cover is slid open to expose the wiring device and a plug is inserted into the wiring device. When use of the wiring device is finished, the plug is removed from the wiring device and the sliding cover is slid open in the opposite direction to cover the wiring device with the sliding cover. [Prior art documents] [Patent documents]
[0005] [Patent Document 1] Patent No. 3711904 Summary of the Invention [Problem to be solved by the invention]
[0006] The sliding cover may be made of resin, or it may be made of metal to give it a luxurious look. If the sliding cover is a metal cover, if the plug is not inserted properly into the wiring device, the metal cover may come into contact with the plug blades, causing current to flow through the metal cover.
[0007] The present invention has been made in consideration of the above-mentioned problems, and aims to provide a cover for a wiring device that can prevent current from flowing through the metal cover when the metal cover comes into contact with a plug inserted into the wiring device. [Means for solving the problem]
[0008] In order to solve the above problems, one aspect of the present invention is a wiring device cover comprising a cover body having an opening for exposing a wiring device, and a sliding cover that slides relative to the cover body to open and close the opening of the cover body, wherein the sliding cover is a wiring device cover comprising a metal cover and an insulating portion that prevents contact between a plug inserted into the wiring device and the metal cover. Effect of the Invention
[0009] According to the present invention, the metal cover can be prevented from coming into contact with the plug inserted into the wiring device, and current can be prevented from flowing through the metal cover. [Brief description of the drawings]
[0010] [Figure 1] FIG. 1 is a perspective view of a wiring device cover according to a first embodiment of the present invention (FIG. 1(a) shows a state in which the sliding cover is closed, and FIG. 1(b) shows a state in which the sliding cover is open). [Diagram 2] FIG. 2 is a perspective view showing a state before the wiring device cover of the present embodiment is attached to the mounting frame. [Diagram 3] FIG. 2 is a perspective view showing a state after the wiring device cover of the present embodiment is attached to the mounting frame. [Figure 4] FIG. 2 is an exploded perspective view of the wiring device cover according to the embodiment. [Diagram 5] 4 is a side view showing a state in which the sliding cover of the wiring device cover of the embodiment is in contact with the plug. FIG. [Figure 6] 4 is a side view showing a state in which the sliding cover of the wiring device cover of the embodiment is in contact with the plug. FIG. [Figure 7]7A and 7B are perspective views of a wiring device cover according to a second embodiment of the present invention (FIG. 7(a) shows a state in which the sliding cover is closed, and FIG. 7(b) shows a state in which the sliding cover is open). [Figure 8] FIG. 5 is an exploded perspective view of a wiring device cover according to a second embodiment of the present invention. [Figure 9] FIG. 11 is an exploded perspective view of a wiring device cover according to a third embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0011] Hereinafter, a wiring device cover according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. However, the wiring device cover according to the present invention can be embodied in various forms and is not limited to the embodiments described in this specification. The present embodiment is provided with the intention of enabling a person skilled in the art to fully understand the invention by fully disclosing the specification. (First embodiment)
[0012] 1(a) and 1(b), a wiring device cover 1 according to a first embodiment of the present invention includes a cover body 2 having an opening 4 for exposing a wiring device, and slide covers 3a and 3b that slide relative to the cover body 2 to open and close the opening 4 of the cover body 2. Although Fig. 1(a) and 1(b) show an example in which two openings 4 are provided in the cover body 2 and two slide covers 3a and 3b are provided to open and close the two openings 4, it is also possible to provide one opening in the cover body and one slide cover to open and close the one opening.
[0013] As shown in Fig. 2, a wiring device 5 such as a power outlet, a USB outlet, a USB connector, a LAN connector, etc. is embedded in a top plate 7 or the like of furniture such as a desk or a table. An embedding hole is formed in the top plate 7 or the like. The wiring device 5 attached to a mounting frame 6 is embedded in the embedding hole. The wiring device 5 may be embedded in a horizontal surface of the top plate or the like as shown in the figure, or in a vertical surface of a wall or the like, or may be embedded in the top plate, wall, etc. of a building.
[0014] Any standardized wiring device 5 may be used. For example, power outlets are standardized according to JIS C 8303-2007. The power outlet may be a grounded outlet or a non-grounded outlet. USB outlets and USB connectors are standardized according to the USB standard.
[0015] The mounting frame 6 is in the form of a long, thin, generally rectangular plate. The mounting frame 6 has a generally rectangular opening 8 into which the wiring device 5 is inserted. The wiring device 5 is fixed to the mounting frame 6 by snap-fitting. For example, when the wiring device 5 is inserted into the opening 8 of the mounting frame 6, the tabs of the wiring device 5 engage with the flexible pieces of the mounting frame 6, and the wiring device 5 is fixed to the mounting frame 6. The mounting frame 6 has through holes 9 for screws for attaching the mounting frame 6 to a construction surface such as a top plate. The mounting frame 6 is well known, so further detailed description will be omitted.
[0016] The wiring device cover 1 is in the form of a long and narrow, generally rectangular plate, similar to the mounting frame 6. The wiring device cover 1 is fixed to the mounting frame 6 by snap fitting. For example, when the back side of the wiring device cover 1 is placed opposite the mounting frame 6 and the wiring device cover 1 is pressed into the mounting frame 6, the flexible pieces or the like of the cover body 2 of the wiring device cover 1 engage with the tabs or the like of the mounting frame 6, and the wiring device cover 1 is fixed to the mounting frame 6. The means for fixing the wiring device cover 1 to the mounting frame 6 is well known, so further detailed explanation will be omitted.
[0017] As shown in FIG. 3, when the wiring device cover 1 is fixed to the mounting frame 6, the cover body 2 is placed on the installation surface, and the wiring device 5 is exposed from the opening 4 of the cover body 2.
[0018] As shown in Fig. 4, the wiring device cover 1 includes a cover body 2 and slide covers 3a and 3b. The slide covers 3a and 3b include a metal cover 11, a slide guide 13, and an insulating portion 14 (see also Fig. 1(b)).
[0019] The cover body 2 is in the form of a long and narrow, generally rectangular plate like the mounting frame 6. The cover body 2 is formed with two generally rectangular openings 4 for exposing the wiring devices 5. A stopper 15 is formed to protrude from the center of the cover body 2 in the longitudinal direction, and determines the closed position of the slide covers 3a and 3b.
[0020] The configurations of one side 2a and the other side 2b of the cover body 2, which is divided into two by the stopper 15, are substantially the same. In the following, only the configuration of the one side 2a of the cover body 2 will be described, and the configuration of the other side 2b of the cover body 2 will be given the same reference numerals and the description thereof will be omitted.
[0021] At both ends in the short side direction of one side 2a of the cover body 2, grooves 16 extending in the longitudinal direction of the cover body 2 are formed to allow the slide guide 13 to slide. A fitting piece of the slide guide 13, which will be described later, fits into this groove 16. The slide guide 13 is slidably held on the cover body 2 by the groove 16 of the cover body 2 and the fitting piece of the slide guide 13.
[0022] A locking projection 17 for locking one end of a return spring is formed on one side 2a of the cover body 2. A plurality of guide projections 18 protruding toward the slide guide 13 are formed on one side 2a of the cover body 2.
[0023] The two slide covers 3a, 3b are formed so as to cover one side 2a and the other side 2b of the cover body 2 which is divided into two by the stopper 15. The two slide covers 3a, 3b have substantially the same configuration.
[0024] The slide guide 13 has an elongated, generally rectangular plate portion 13a, a pair of side walls 13b provided at both ends of the plate portion 13a in the short side direction (direction perpendicular to the sliding direction), and an end wall 13c facing the end of the cover body 2 in the sliding direction. A fitting piece 13b1 is formed at the tip of the side wall portion 13b so as to protrude inward and extend in the longitudinal direction. The fitting piece 13b1 fits into a groove 16 of the cover body 2.
[0025] A guide protrusion (not shown) that comes into contact with the cover body 2 is formed on the rear surface of the plate portion 13a of the slide guide 13. In addition, a locking protrusion (not shown) to which the other end of the return spring 21 is locked is formed on the rear surface of the plate portion 13a. The contact area between the cover body 2 and the slide guide 13 can be reduced by the guide protrusion of the slide guide 13 and the guide protrusion 18 of the cover body 2. When the slide guide 13 slides to the open position, the guide protrusion of the slide guide 13 comes into contact with the guide protrusion 18 of the cover body 2, and the open position of the slide guide 13 is determined. The configurations of the guide protrusion of the slide guide 13 and the guide protrusion 18 of the cover body 2 are well known, so further detailed explanation will be omitted.
[0026] A metal cover 11 is attached to the slide guide 13. The metal cover 11 is made of a metal such as stainless steel, aluminum, or an alloy. The metal cover 11 covers the slide guide 13. The metal cover 11 includes a plate portion 11a that covers the upper surface of the slide guide 13, and a side wall portion 11b that is bent relative to the plate portion 11a and covers the side surface of the slide guide 13. The means for fixing the metal cover 11 to the slide guide 13 is not particularly limited, and may be, for example, a double-sided tape 12, adhesive, or the like. The stopper 15 of the cover body 2 is also covered with a metal cover 22. The means for fixing the metal cover 22 to the stopper 15 is not particularly limited, and may be, for example, a double-sided tape 23, adhesive, or the like.
[0027] An insulating portion 14 is provided at the end of the metal cover 11 on the wiring fixture 5 side in the sliding direction to prevent contact between the metal cover 11 and a plug inserted into the wiring fixture 5 (see also FIG. 1(b)). The insulating portion 14 has a property of being difficult to conduct electricity, and is made of a material such as resin, rubber, glass, ceramic, etc. In this embodiment, the insulating portion 14 is formed integrally with the slide guide 13 made of resin.
[0028] The insulating portion 14 is formed in a flange-like shape protruding outward from the end of the sliding guide 13 on the wiring device 5 side in the sliding direction. The insulating portion 14 covers the end of the metal cover 11 on the wiring device 5 side in the sliding direction. The insulating portion 14 includes a center portion 14a that covers the end of the plate portion 11a of the metal cover 11 in the sliding direction, and a side wall portion 14b that covers the end of the side wall portion 11b of the metal cover 11 in the sliding direction. The center portion 14a is formed with an inclined portion 14a1 so that the sliding covers 3a, 3b in the closed position can be slid by hooking a finger thereon. A notch 11c corresponding to the inclined portion 14a1 is formed at the end of the plate portion 11a of the metal cover 11 in the sliding direction.
[0029] The return spring 21 biases the slide covers 3a, 3b in the closing direction. The return spring 21 has an open hold function or a constantly closed function. The open hold function is a function that holds the slide covers 3a, 3b in the open position in the open position, and when a user slides the slide covers 3a, 3b in the open position in the closing direction to a predetermined position, the slide covers 3a, 3b automatically slide to the closed position. The constantly closed function is a function that automatically slides the slide covers 3a, 3b in the open position to the closed position when a user slides the slide covers 3a, 3b to the open position and releases them. It is to be noted that the slide covers 3a, 3b may be opened and closed manually without providing the return spring 21.
[0030] The effects of the wiring device cover 1 of this embodiment will be described below.
[0031] 5, when the sliding cover 3a is closed in a state in which the plug 25 is not fully inserted into the wiring device 5, for example, when the blades 25a of the plug 25 are half-inserted into the wiring device 5, the sliding cover 3a comes into contact with the blades 25a of the plug 25. However, according to the wiring device cover 1 of this embodiment, the sliding covers 3a and 3b include the metal cover 11 and the insulating portion 14 that prevents contact between the plug 25 inserted into the wiring device 5 and the metal cover 11. Therefore, it is possible to prevent the metal cover 11 from coming into contact with the plug 25 inserted into the wiring device 5, and to prevent a current from flowing through the metal cover 11.
[0032] 6 shows a case where the arrangement direction of two blades 25a of plug 25 is perpendicular to the sliding direction of slide covers 3a and 3b. In this case, slide covers 3a and 3b may come into contact with two blades 25a of plug 25. According to wiring device cover 1 of the present embodiment, slide covers 3a and 3b include metal cover 11 and insulating portion 14 that prevents contact between plug 25 inserted into wiring device 5 and metal cover 11, so that metal cover 11 can be prevented from coming into contact with plug 25 inserted into wiring device 5.
[0033] Since the insulating portion 14 is provided at the end of the metal cover 11 on the wiring fixture 5 side in the sliding direction, contact between the plug 25 inserted into the wiring fixture 5 and the metal cover 11 can be reliably prevented.
[0034] Since the insulating portion 14 is made of resin, the insulating properties can be improved.
[0035] Since the insulating portion 14 is formed integrally with the slide guide 13, the insulating portion 14 can be easily provided and the strength of the insulating portion 14 can be ensured.
[0036] It should be noted that the present invention is not limited to the above-described embodiment, and may be embodied in other embodiments without departing from the spirit and scope of the present invention.
[0037] In the above embodiment, the slide guide 13 slides relative to the cover body 2, but the slide guide may be omitted and the metal cover may slide relative to the cover body. An insulating part may be provided on the metal cover by painting, coating, bonding, etc. In this case, the insulating part may be made of insulating paint, resin, or paper. Second embodiment
[0038] 7(a) and (b) show a wiring device cover 31 according to a second embodiment of the present invention. Like the wiring device cover 1 of the first embodiment, the wiring device cover 31 of the second embodiment also includes a cover body 2 having an opening 4 for exposing a wiring device, and slide covers 3a and 3b that slide relative to the cover body 2 to open and close the opening 4 of the cover body 2.
[0039] As shown in Fig. 8, the slide covers 3a and 3b include a metal cover 11, a slide guide 13, and an insulating part 14. The metal cover 11 is fixed to the slide guide 13 by a fixing means such as double-sided tape 12 or adhesive. The insulating part 14 is provided at the end of the slide guide 13 on the wiring device side in the sliding direction. The insulating part 14 is formed integrally with the slide guide 13 made of resin.
[0040] In the wiring device cover 1 of the first embodiment, a stopper 15 is provided between the sliding cover 3a and the sliding cover 3b in the closed position, whereas in the wiring device cover 31 of the second embodiment, the sliding cover 3a and the sliding cover 3b in the closed position directly face each other.
[0041] The cover body 2 includes a body frame 32 and a stopper 33 that is detachably attached to the body frame 32. The closed and open positions of the slide covers 3a and 3b are maintained by the flexible pieces 33a of the stopper 33 engaging with the recesses 13d and 13e of the slide guide 13.
[0042] The wiring device cover 31 of the second embodiment provides substantially the same effects as the wiring device cover 1 of the first embodiment. Third embodiment
[0043] 9 shows a wiring device cover 41 according to a third embodiment of the present invention. Like the wiring device cover 31 of the second embodiment, the wiring device cover 41 of the third embodiment includes a cover body 2 having an opening 4 for exposing a wiring device, and slide covers 3a and 3b that slide relative to the cover body 2 to open and close the opening 4 of the cover body 2. The cover body 2 includes a main body frame 32 and a stopper 33 that is detachably attached to the main body frame 32. The slide covers 3a and 3b include a metal cover 11, a slide guide 13, and an insulating portion 14.
[0044] In the wiring device cover 31 of the second embodiment, the insulating portion 14 is formed integrally with the resin slide guide 13, whereas in the wiring device cover 41 of the third embodiment, the insulating portion 14 is separate from the resin slide guide 13 and is fixed to the end of the metal cover 11 on the wiring device side in the sliding direction by adhesion or the like. The insulating portion 14 may be made of resin or paper.
[0045] The wiring device cover 41 of the third embodiment provides substantially the same effects as the wiring device cover 1 of the first embodiment. [Explanation of symbols]
[0046] 1...Wiring device cover 2…Cover body 3a, 3b…Slide cover 4…Aperture 5…Wiring equipment 11...Metal cover 13…Slide guide 14…Insulation section 25…Plug 31...Wiring device cover 41...Wiring device cover
Claims
1. A cover body having an opening for exposing the wiring device; A wiring device cover including a sliding cover that slides relative to the cover body to open and close the opening of the cover body, The sliding cover is a cover for a wiring device comprising a metal cover and an insulating portion that prevents contact between a plug inserted into the wiring device and the metal cover.
2. The wiring device cover according to claim 1 , wherein the insulating portion is provided at an end portion of the metal cover on the wiring device side in a sliding direction.
3. 3. The wiring device cover according to claim 1, wherein the insulating portion is made of resin.
4. the slide cover includes a slide guide to which the metal cover is attached; The wiring device cover according to claim 1 or 2, wherein the insulating portion is formed integrally with the slide guide.
Citation Information
Patent Citations
Wiring device
JP3711904B2