Installation structure of wiring box

Abstract

To provide an installation structure of a wiring box capable of preventing a situation in which a cover body is displaced after installation even in the installation structure of a type in which the cover body is installed using a magnet.SOLUTION: In an installation state, the front end of the box body 2 of the wiring box 1 is inserted into the window 23, and the edge of the window 23 and the peripheral surface of the front end of the box body 2 are brought close to or into contact with each other. The 2a of the upper surface of the box body 2 is formed as an inclined surface descending backward, and the 2b of the lower surface of the box body 2 is formed as an inclined surface ascending backward. The left side surface of the box body 2 is an inclined surface inclined to the right side toward the rear side, and the right side surface of the box body 2 is an inclined surface inclined to the left side toward the rear side.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to an installation structure for a wiring box that constitutes, for example, an electrical outlet device. [Background technology]

[0002] A known installation structure for a wiring box is, for example, that described in Patent Document 1. That is, in this installation structure, the wiring box is attached to a metal installation frame that is fixed to the wall, and a cover body having a window through which the front surface of the wiring box can be exposed is attached to cover the front of the installation frame body by the attraction force of a magnet disposed on the back surface of the cover body. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Utility Model Registration No. 3040100 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the installation structure using magnets as described in Patent Document 1 has the problem that the cover body is prone to slipping off after installation. To solve this problem, it is conceivable to adopt a configuration in which, for example, a convex portion is provided on the installation frame body and a concave portion into which the convex portion engages is provided on the cover body, but providing such a convex portion and a concave portion creates the problem that the convex portion and the concave portion are easily damaged when a load is applied to the cover body.

[0005] Therefore, the present invention has been made in consideration of the above problems, and aims to provide an installation structure for a wiring box that can prevent the cover body from shifting after installation, even in an installation structure that uses magnets to install the cover body, and that is less likely to damage the cover body, etc. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, the invention described in claim 1 of the present invention is an installation structure for a wiring box in which a wiring box is attached to an installation frame body fixed to the wall side, and a cover body having a window for exposing the front of the wiring box is attached so as to cover the installation frame body from the front by magnets arranged on the installation frame body and / or the cover body, and is characterized in that in the installed state, the front end of the wiring box is inserted into the window, the edge of the window and the peripheral surface of the front end of the wiring box are close to or abutting each other, and the peripheral surface has an inclined portion that slopes in a direction that reduces the area of ​​the vertical cross section of the wiring box toward the rear. The invention described in claim 2 is characterized in that, in the invention described in claim 1, the wiring box is molded in a box shape having an upper surface, a lower surface, a left side surface, and a right side surface as the peripheral surface, and the inclined portion is provided on at least one of the upper surface, the lower surface, the left side surface, and the right side surface. [Effects of the Invention]

[0007] According to the present invention, when installed, the front end of the wiring box fits into the window, the window edge and the peripheral surface of the front end of the wiring box are close to or abut against each other, and the peripheral surface has an inclined portion that slopes in a direction that reduces the vertical cross-sectional area of ​​the wiring box toward the rear. Therefore, even if a load is applied to the cover in a direction that causes it to shift up, down, left, or right, the corresponding point of contact with the peripheral surface of the window edge is pressed against the wall, so the cover does not ride up on the front of the wiring box. Therefore, even though the installation structure uses magnets to install the cover, it is possible to prevent the cover from shifting after installation and also to prevent damage to the cover. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 10 is an explanatory diagram showing the wiring box in an installed state from the front side. [Figure 2] FIG. 2 is a perspective explanatory view showing the wiring box in an installed state from the front side. [Figure 3] FIG. 2 is an exploded perspective explanatory view showing the installation structure of the wiring box. [Figure 4] FIG. 2 is an explanatory diagram showing a cross section taken along line AA in FIG. [Figure 5] 5 is an explanatory diagram showing an enlarged view of the area in FIG. 4 where the top surface of the box body and the cover body are close to each other. [Figure 6] 5 is an explanatory diagram showing an enlarged view of a portion in FIG. 4 where the lower surface of the box body and the cover body are close to each other. [Figure 7] FIG. 2 is an explanatory diagram showing a cross section along line BB in FIG. [Figure 8] 8 is an explanatory diagram showing an enlarged view of the left side surface of the box body and the vicinity of the cover body in FIG. 7. FIG. [Figure 9] 8 is an explanatory diagram showing an enlarged view of the area where the right side surface of the box body and the cover body are close to each other in FIG. 7. DETAILED DESCRIPTION OF THE INVENTION

[0009] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A wiring box installation structure according to an embodiment of the present invention will be described in detail below with reference to the drawings.

[0010] FIG. 1 is an explanatory diagram showing the wiring box 1 in an installed state from the front. FIG. 2 is an explanatory perspective view showing the wiring box 1 in an installed state from the front. FIG. 3 is an explanatory perspective view showing an exploded view of the installation structure of the wiring box 1. FIG. 4 is an explanatory diagram showing a cross section taken along line AA in FIG. 1. FIG. 5 is an explanatory diagram showing an enlarged view of the vicinity of the upper surface 2a of the box main body 2 and the cover body 21 in FIG. 4. FIG. 6 is an explanatory diagram showing an enlarged view of the vicinity of the lower surface 2b of the box main body 2 and the cover body 21 in FIG. 4. FIG. 7 is an explanatory diagram showing a cross section taken along line BB in FIG. 1. FIG. 8 is an explanatory diagram showing an enlarged view of the vicinity of the left side surface 2c of the box main body 2 and the cover body 21 in FIG. 7. FIG. 9 is an explanatory diagram showing an enlarged view of the vicinity of the right side surface 2d of the box main body 2 and the cover body 21 in FIG. 7.

[0011] The wiring box 1 is used as a component of a so-called electrical outlet device. It comprises a box body 2 having an upper surface 2a, a lower surface 2b, a left side surface 2c, a right side surface 2d, and a rear surface, and an opening at the front. A front panel 3 is attached to the box body 2 to close the front opening. The front panel 3 is provided with sockets 4, 4 for inserting plug blades (not shown). The peripheral surfaces of the box body 2 (the upper surface 2a, the lower surface 2b, the left side surface 2c, and the right side surface 2d) are sloped so that the area of ​​the vertical cross section of the box body 2 gradually decreases from the front end toward the rear. That is, the upper surface 2a of the box body 2 is sloped downward toward the rear, while the lower surface 2b of the box body 2 is sloped upward toward the rear. The left side surface 2c of the box body 2 is sloped toward the right toward the rear, while the right side surface 2d of the box body 2 is sloped toward the left toward the rear. The inclination angles of the top surface 2a, bottom surface 2b, left side surface 2c, and right side surface 2d of the box body 2 are all 3°.

[0012] The wiring box 1 is attached to a metal installation frame 11 that is fixed to the wall. An opening 12 capable of accommodating the wiring box 1 is provided in the center of the installation frame 11, and the peripheral portion of the opening 12 functions as abutment portions 13 for abutting against the wall surface during installation. Arm-shaped mounting pieces 14 extending rearward are provided on both left and right side edges of the opening 12, and the wiring box 1 can be attached to the mounting pieces 14. As shown in Figures 5, 6, 8, and 9, the edges of the opening 12 are chamfered.

[0013] The installation frame 11 is covered from the front by a synthetic resin cover 21. The cover 21 is a rectangular plate when viewed from the front, and is slightly larger than the abutment portion 13 of the installation frame 11. Magnets 22, 22... are attached to the back surface of the cover 21 for attaching it to the installation frame 11. A window 23 is formed in the center of the cover 21 to expose the front surface of the wiring box 1. The size and shape of the window 23 are approximately the same as the front surface of the wiring box 1, allowing the front end of the wiring box 1 to be inserted into the window 23. As shown in Figures 5, 6, 8, and 9, the edges of the window 23 are also chamfered.

[0014] Here, the installation work of the wiring box 1 will be described. First, the mounting pieces 14, 14, etc. are positioned in an installation hole (not shown) in the wall, with the abutment portion 13 abutting against the wall surface around the installation hole, and the installation frame body 11 is fixed to the wall. Next, with the wiring box 1 housed in the opening 12, the wiring box 1 is attached to the mounting pieces 14, 14. In this attached state, the front end of the wiring box 1 (particularly the front end of the box body 2) protrudes forward beyond the abutment portion 13. Finally, with the front end of the wiring box 1 inserted into the window 23, the cover body 21 is attached so as to cover the installation frame body 11 from the front using the magnets 22, 22..., and the installation of the wiring box 1 is complete.

[0015] In the wiring box 1 thus installed, the edge of the window 23 is close to or abuts the front edge of the periphery of the box body 2. In this situation, if a load is applied to the cover body 21 in a direction that causes it to shift up, down, left, or right, the edge of the window 23 will abut against the periphery of the box body 2 at a location corresponding to the direction of the load. However, because the periphery of the box body 2 is inclined as described above, the abutment location on the window 23 side is subjected to a load in a direction that presses it against the wall. In other words, a load is unlikely to be applied in a direction that causes it to climb up onto the front surface of the wiring box 1. Therefore, even if a load is applied to the cover body 21 in a direction that causes it to shift up, down, left, or right, the cover body 21 will not shift and climb up onto the front surface of the wiring box 1.

[0016] According to the installation structure of the wiring box 1 having the above-described configuration, in the installed state, the front end of the box body 2 of the wiring box 1 fits into the window 23, and the edge of the window 23 and the peripheral surface of the front end of the box body 2 are close to or abut against each other. The top surface 2a of the box body 2 is sloped downward toward the rear, while the bottom surface 2b of the box body 2 is sloped upward toward the rear. The left side surface 2c of the box body 2 is sloped rightward toward the rear, while the right side surface 2d of the box body 2 is sloped leftward toward the rear. Therefore, even if a load is applied to the cover body 21 in a direction that causes it to deviate upward, downward, leftward, or leftward, the corresponding load is applied to the contact point of the edge of the window 23 with the box body 2 in a direction that presses it against the wall, preventing the cover body 21 from climbing up and down onto the front surface of the wiring box 1. Therefore, even though the installation structure is of a type in which the cover body 21 is installed using the magnets 22, 22, etc., it is possible to prevent the cover body 21 from shifting after installation, and also to prevent the cover body 21 from being damaged.

[0017] The installation structure of the wiring box according to the present invention is not limited to the above-described embodiment, and the structure of the peripheral surface of the wiring box, etc., can be appropriately modified as necessary within the scope of the present invention.

[0018] For example, in the above embodiment, the entire peripheral surface of the box body of the wiring box is inclined, but it is also possible to incline only the front end portion that fits into the window, and the design of the inclined portion can be modified as appropriate. Needless to say, the inclination angle of the inclined portion is not limited to 3°. In addition, in the above embodiment, inclined portions are provided on all of the top, bottom, left side, and right side, but if there is a reason that the cover is particularly prone to slipping downward, an inclined portion may be provided only on the top side, and as long as an inclined portion is provided on any one side, a certain degree of effect can be expected in preventing the cover body from slipping.

[0019] Furthermore, in the above embodiment, a box-shaped box body having an upper surface, a lower surface, a left side surface, and a right side surface is used, but it is of course also possible to use a cylindrical box body, and the specific shape of the wiring box can be designed and modified as appropriate. Furthermore, in the above embodiment, the configuration for attaching the cover using a magnet is such that the installation frame is made of metal and the magnet is located on the backside of the cover, but the opposite configuration may be adopted, where the cover is made of metal and the magnet is located on the contact part of the installation frame.Furthermore, it is also possible to configure both the installation frame and the cover to be made of synthetic resin and to have magnets located on both, so that the magnets attract each other. Additionally, in the above embodiment, a wiring box used as an outlet device has been described, but the present invention can also be suitably applied to other wiring boxes, such as a lighting switch box. [Explanation of symbols]

[0020] 1...Wiring box, 2...Box body, 2a...Top surface (surrounding surface, sloping part), 2b...Bottom surface (surrounding surface, sloping part), 2c...Left side (periphery, sloping part), 2d...Right side (periphery, sloping part), 11...Installation frame body, 21...Cover body, 22...Magnet, 23...Window.

Claims

1. A wiring box installation structure in which a wiring box is attached to an installation frame body fixed to a wall side, and a cover body having a window for exposing the front surface of the wiring box is attached so as to cover the installation frame body from the front by magnets arranged on the installation frame body and / or the cover body, In an installed state, a front end portion of the wiring box is inserted into the window, and an edge of the window and a peripheral surface of the front end portion of the wiring box are close to or abut against each other; A wiring box installation structure characterized in that the peripheral surface is provided with an inclined portion that inclines toward the rear in a direction in which the area of ​​the vertical cross section of the wiring box becomes smaller.

2. The wiring box is formed in a box shape having an upper surface, a lower surface, a left side surface, and a right side surface as the peripheral surface, 2. The wiring box installation structure according to claim 1, wherein the inclined portion is provided on at least one of the upper surface, the lower surface, the left side surface, and the right side surface.

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