JP2580470Y2 - Corner box for wiring duct - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a corner box for a wiring duct.

[Conventional technology]

There is a corner box for a wiring duct used when wiring a wire such as an electric wire.

As shown in FIG. 7, the corner box is attached to a corner C of the surface on which the wiring duct D is mounted, and the wiring ducts D and D are connected. This corner box 70, as seen in Fig. 5,
A base 71 fixed to the corner C and a cover 72 mounted on the base 71 are provided. The cover 72 is attached to the base 71 with screws 79 as shown in FIG. cover
When attaching 72, cover the base 71 with the cover 72, and then
Pass the cover 79 through the through hole 72a in the center of the front of the cover 72.
Into the screw hole 71a.

In addition, there is a corner box as shown in FIG. The corner box 80 also includes a base 81 fixed to the corner and a cover 82 mounted on the base 81. As shown in FIG.
Is attached to the base 81. In the case of the corner box 80, there are four screwing locations. When attaching the cover 72, place the cover 82 on the base 81, and then screw the cover 89
The cover 82 is screwed through the through hole 82a on the side surface and into the screw hole 81a of the cover 82.

[Problems to be solved by the invention]

However, in the case of the above corner boxes 70 and 80,
There is a problem that it is not easy to attach and detach the cover. If you place the corner box on a high corner, it will be difficult to tighten or loosen the screws. And it takes time.

Further, in the case of the corner box 80, there is also a problem that it is difficult to arrange the electric wires in the box (the wiring cannot be performed) because the screwing plate 83 projects over the front surface of the base 81.

In view of the above circumstances, it is an object of the present invention to provide a corner box in which a cover can be easily attached and detached and wires can be easily arranged in a box even when the corner box is provided at a high place.

[Means for solving the problem]

In order to solve the above-mentioned problem, in the corner box for the wiring duct according to the present invention, two corners of the mounting surface of the wiring duct are arranged at a corner portion orthogonal to each other, and the corner box for connecting the wiring ducts to each other. And a base fixed to the corner having a bottom piece and a side piece disposed on two surfaces orthogonal to the corner, and a side face covering both side ends of the bottom piece and the side piece of the base, and attached to the base. Provided on the inner surface of both sides of the cover, a convex portion is provided at a position corresponding to the vicinity of the bottom piece and the side piece of the base, respectively, at the outer peripheral corner of the bottom piece and the side piece of the base A piece having a receiving portion at a position corresponding to the convex portion, which is disposed at a position along the inner surface of the side surface of the cover, and which is fitted with the convex portion, is provided on each of the near side ends, The cover is locked to the base by fitting into the receiving portion, and the cover is detached from the base by the convex portion falling out of the receiving portion. At the tip of the cover, the cover is formed by bending one of the corners on the side approaching first obliquely inward when the cover is attached to the base, so that the protrusion can be easily fitted into the receiving portion. An invitation inclined portion is formed, and a notch for inserting a tool tip is formed at an end other than the side surface of the cover.

[Action]

In the corner box of this invention, the engagement between the cover and the base is due to the fitting of the projection and the receiving part,
Screws are not required for attaching and detaching the cover, making it easy to work in high places.

When the cover is attached, when the cover is pushed in a state where the cover is substantially fitted to the base, the convex portion on the cover side naturally fits into the receiving portion on the base side, and the cover is locked to the base. Can be attached with one touch. Since the piece having the receiving portion has the protruding portion inclining portion, the protruding portion is smoothly guided into the receiving portion and fitted without being caught on the way.

When removing the cover, if the cover is raised by inserting the tip of a tool for removal such as a screwdriver into the notch at the end of the cover, the convex portion on the cover side comes out of the receiving portion on the base side, and the cover comes off. Can be removed with one touch.

Further, since the wire receiving space is opened only by the piece having the receiving portion for attaching the cover standing on the base, the wire arranging operation is very easy.

In particular, the bottom piece and the side piece which are arranged orthogonally to each other on the base are provided with the piece having the receiving portion and the guiding inclined portion, so that the side surface of the cover is securely and easily attached to the side end of the base. And can be removed.

That is, since the side surface of the cover is securely fixed to the base at two orthogonal sides, a gap is prevented from being formed between the base and the cover, and the cover is prevented from floating from the base.

Since the guiding inclined portion is formed by bending one corner of the tip of the piece having the receiving portion obliquely inward, the receiving portion of the piece arranged in different directions at the two places of the bottom piece and the side piece. The two projections provided on the side surface of the cover can be simultaneously and smoothly engaged and disengaged.

The pieces having the receiving portions face in directions orthogonal to each other on the bottom piece and the side piece of the base. When attaching the cover to the base, if the cover is put on the base from an oblique direction between the bottom piece and the side piece, the convex part of the cover comes into contact with the piece having the receiving part from the corner of the tip. I do. If the front end has a guiding slope at the corner, the convex portion of the cover smoothly contacts the guiding slope and is guided to the receiving part.

If the tip of the piece having the receiving portion is uniformly bent from one corner to the other corner to provide an inclined portion, the direction in which the convex portion of the cover approaches the piece having the receiving portion is provided. Since the inclination direction of the invitation slope is slightly deviated, when the projection is bent and the invitation slope is provided, the direction in which the projection of the cover approaches the piece having the receiving part, and the inclination direction of the invitation slope. Is slightly displaced, so that the guidance of the convex part does not go smoothly. The convex portion of the cover first comes into contact with the tip corner of the piece having the receiving portion, and since it is only necessary to guide the oblique direction from there to the position of the receiving portion, the guiding slope portion has the receiving portion. It does not make sense to provide the entire tip of the piece. Further, if the tip of the piece having the receiving portion is bent over a wide range, the contact area between the cover and the base becomes small when the cover is put on, and there is a problem that it is difficult to perform stable mounting.

〔Example〕

Hereinafter, an embodiment of a corner box for a wiring duct according to the present invention will be described in detail with reference to the drawings.

1 shows the disassembled state of the corner box of the embodiment, FIG. 2 shows the assembled state of the corner box of the embodiment, and FIGS. 3 and 4 show the arrangement state of the corner box of the embodiment. To represent.

The corner box 1 of the embodiment comprises a base 2 and a cover 3 as shown in FIG. In the case of construction, the third
As shown in the figure, the base 2 is fixed to a corner C (for example, a ceiling corner) with screws 29, and wiring ducts D, D are arranged, and then the cover 3 is covered.

As shown in FIG. 1, the base 2 has a base body composed of a bottom piece 2a and a side piece 2b. The opening angle between the bottom piece 2a and the side piece 2b is about 90 °. Each of the bottom piece 2a and the side piece 2b has a through hole 21 for fixing the base. Four bent pieces (pieces) 22 are provided on both ends of the bottom piece 2a and the side piece 2b.

Each bent piece 22 is provided with a through hole (receiving portion) 22a and a △ -shaped inclined surface (inviting inclined portion) 22b formed by bending the tip obliquely inward.

As shown in FIG. 1, the cover 3 is processed so that the central portion of the front surface 3a is an inclined surface.
The bottom surface 3b and the back surface 3c facing the side piece 2b are open surfaces. On the inner surface of the cover 3, four convex portions 31 for locking are provided.

The through hole 22a on the base side and the protrusion 31 on the cover side are provided at positions corresponding to each other. The corresponding position is a position where the convex portion 31 just fits into the through hole 22a when the cover 3 is mounted, as shown in FIGS. 2 (a) and 2 (b). The cover 3 is locked to the base 2 by the fitting of the through hole 22a so as not to come off.

Subsequently, the attachment and detachment of the cover 3 will be specifically described.

When the cover 3 is put on, as shown in FIG. 3, the cover 3 is simply pushed in substantially in line with the base 2. The cover 3 can be attached with one touch. That is, when the cover 3 is pushed into the base 2, the projection 31 is bent.
The bent piece 31 hits the inclined surface 22b at the tip of the tip 22 and moves back into the through hole 22a while retracting the bent piece 31 inward, and fits. If there is no inclined surface 22b, the convex portion 31 is caught on the tip of the cover locking projection 22 and the convex portion 31
31 does not enter well.

To remove the cover 3, as shown in FIG. 4, the driver G is simply inserted into the notch 33 formed at the upper end (or lower end) of the front surface 3a of the cover 3 and a force is applied to raise the cover 3. is there. The cover 3 is raised by turning or levering the driver G. The cover 3 can be removed with one touch.

When a force is applied in the direction in which the cover 3 is raised, the cover locking projection 22 is displaced inward, and at the same time, the projection 31 comes out of the through hole 22a, and the cover 3 comes off.

At the upper and lower ends of the front surface 3a of the cover and at the ends of the side surfaces 3d and 3e, there is a connection port M for a wiring duct D.
The connection port M is closed only at the duct connection position in use.

In the above embodiment, the notch 33 is formed on the side of the cover 3.
Since it is located in a place other than 3d and 3e, there is an advantage that a plurality of corner boxes can be arranged side by side.

This invention is not limited to the above embodiment. For example, in the above embodiment, the receiving portion 31 of the convex portion 31 is the through hole 22a, but may be a concave portion that does not penetrate. Alternatively, the connection port may already be open before use.

[Effect of the invention]

As described above, in the corner box according to the present invention, since the locking of the cover and the base is based on the fitting of the convex portion and the receiving portion, screwing is not required for attaching and detaching the cover, so that the corner box can be used at a high place. Since the work is easy and there is an inclining slope that facilitates the fitting of the protrusion, the cover can be installed without failure and there is a cutout for inserting the tool tip,
Since the cover can be easily removed and the base wire accommodation space of the base is open, the work of arranging the wires is easy, and therefore, the practicability is very high.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a corner box of the embodiment, FIG. 2 shows an assembled state of the corner box of the embodiment, FIG. 1 (a) is a front view, and FIG. 2 (b) is a bottom view.
3 and 4 are perspective views showing an arrangement state of the corner box of the embodiment, FIG. 5 is an exploded perspective view of the conventional corner box, and FIG. 6 is an assembled state of the conventional corner box. 7 is a perspective view showing an arrangement state of a conventional corner box, FIG. 8 is an exploded perspective view of another conventional corner box, and FIG. 9 is another conventional corner box. FIG. 4 is a perspective view showing an assembled state of FIG. 1 ... corner box, 2 ... base, 3 ... cover, 22 ... bending piece (piece), 22a ... through hole (receiving part), 2
2b …… Slope (inviting slope), 31… Protrusion, 33…
Cutout

Continuation of the front page (56) References JP-A-1-264514 (JP, A) JP-A-59-201618 (JP, A) JP-A-53-107899 (JP, U) JP-A-1-116511 (JP, A) , U) Japanese Utility Model 1983-80724 (JP, U) Japanese Utility Model 1983-34523 (JP, U) Japanese Utility Model Utility No. 2-60418 (JP, U) Japanese Utility Model Japanese Utility Model 1979-1995 (JP, Y1)

Claims (1)

(57) [Scope of request for utility model registration] 1. A corner box in which two surfaces of a mounting surface of a wiring duct are arranged at corner portions where the two surfaces intersect at right angles, and a bottom box which is arranged on two surfaces which are orthogonal to the corners. A base having side pieces and fixed to the corners, and a cover having side surfaces covering both bottom pieces and both side ends of the base pieces and attached to the base, wherein inner surfaces of both side faces of the cover are provided. A protrusion is provided at a position corresponding to the vicinity of the bottom piece and the side piece of the base, and a position along the inner surface of the side surface of the cover is provided at both ends near the outer peripheral corners of the bottom piece and the side piece of the base, respectively. A piece having a receiving portion in which the convex portion fits is located at a position corresponding to the convex portion, and the cover is locked to the base by the convex portion fitting into the receiving portion. The cover comes off from the base when the convex portion comes out of the receiving portion, and the piece has a tip of the piece, a side of the piece to which the cover approaches first when the cover is attached to the base. Is formed by obliquely bending one of the corners inward, and an inclining inclined portion is formed to facilitate the fitting of the convex portion into the receiving portion, and at an end other than the side surface of the cover. A corner box having a notch for inserting a tool tip.