JP2526790Y2 - Connection items for metal wire gutters - Google Patents

Description

[Detailed description of the invention] (Field of application of the invention) The invention relates to an improvement of a metal wire gutter connection article used for connection or branching of a metal wire gutter exposed and piped to pass an electric wire. .

(Background of the invention) Construction using metal wire gutters is one of more than ten types of facilities where electricity is used, which is indicated in the technical standards (Ministerial Ordinance) on electrical equipment based on the Electricity Business Law. In dry places such as offices, factories, warehouses or stores, it is widely used as an exposed electrical plumbing because of its simple and aesthetically pleasing appearance in relatively short extension work or repair work.

Most of the metal wire gutters used in the construction of metal wire gutters and their accessories are connected (base).
It consists of a combination of a cover and a cover. In construction, the base is mounted on a mounting surface such as a wall or ceiling, an insulated wire is attached to the base, and the cover is attached to the base. This is a construction method dedicated to exposed piping.

As connecting articles for connecting metal wire gutters to each other or to the ends of wire gutters, since the piping using them is an exposed system, beams, columns, or corners of walls and ceilings, etc. In order to cope with the form of the building, various types of shapes are prepared, such as those for planar bending, inner bending, outer bending, boxes, and interconnection of wire gutters.

FIG. 2 is a perspective external view of a flat-bend connecting product, which is one type of a metal wire gutter connecting product.

The flat bending connection article 1 connects the metal wire gutter 2 to both ends bent at a right angle.

FIG. 3 is an assembling diagram of the conventional connection product 1 for flat bending, in which a base 3 represented by a solid line, a cover 4 also represented by a two-dot chain line, and a third In the figure, it is represented by a dashed line, and in FIGS. 4 (a), (b) and (c), it is constituted by three points of the connecting metal fitting 5 represented by a solid line. FIG. 3 (c) is a side view in which a part is taken along the line AA.

As described above, there are several types of metal wire gutter connection articles, all of which are of the same type and have the same structure, and a structural feature common to these connection articles is the presence of the connection fitting 5. .

The connection metal fitting 5 can be detached from the base 3 fixed to the mounting surface.

That is, since the keyway-shaped hooking bent portions 6 are provided on both sides of the base 3, the bent portions 7 of both leg ends of the connecting metal fitting 5 are fitted into the hooked bending portions 6, and then the cover 4 is small. Fix with screws 8. (If the connecting metal member 5 having such a structure is integrally formed or fixed to the base 3, it is very inconvenient for the wires to pass through.) In addition, the connecting metal member 5 covers the cover 4. Before fixing, it also serves to arrange the electric wires and hold them on the base 3.

In such a conventional connection product, the cover 4 is screwed onto the connection metal fitting 5 while the connection metal fitting 5 is fitted into the key groove-shaped hooking bent portion 6 of the base 3, that is, while being hooked on the base 3. Although it is a structure for stopping, there is a drawback that there is a little play in the connection metal fitting 5, and the positions of the screw holes 9 of the cover 4 and the screw holes 10 of the connection metal 5 do not easily match.

In particular, in the case where the metal wire gutter 2 and the flat-bending connection article 1 are to be vertically mounted on a wall surface, one of the two connection fittings 5 has a screw hole 9 in the cover 4 and a screw hole 9 in the cover 4. Even if the screw holes 10 of the connection metal fitting 5 match, the screw holes 9 of the other cover 4 and the screw holes 10 of the connection metal fitting 5 often do not match. It is easy to screw the connecting metal 5 into the screw hole 10 of the connecting metal 5 by fixing the connecting metal 5 in the proper position, covering the cover 4, and passing the small screw 8 through the screw hole 9 of the cover 4 in this state. It is not necessary to temporarily fix the connecting metal fitting 5 to a proper position in advance by using, for example, an adhesive tape.
This has been a major problem in on-site work, such as requiring a complicated work such as screwing.

(Purpose of the Invention) An object of the present invention is to solve the above-mentioned problems and to provide a metal wire gutter connection article in which the cover can always be securely and easily attached.

(Characteristics of the Invention) In order to achieve the above object, the present invention provides a cover mounting claw that protrudes in an L shape from one side of the base to above the center of the base. And a rib portion is formed over one side of the base that is continuous with the cover mounting claw and the cover mounting claw,
The cover mounting claw is provided with a screw hole into which a screw for mounting the cover on the base is screwed, and thereby the cover mounting claw is integrally formed as a single-sided support, thereby facilitating wiring. At the same time, the number of movable parts at the time of screwing is reduced, and weak strength is reinforced by the rib portion for one-side support.

(Embodiment of the Invention) FIG. 1 is an assembly view of a flat-bend connecting article, which is one type of a metal wire gutter connecting article, which is an embodiment of the present invention.

FIG. 1 (a) and FIG. 1 (b)
And a base 13 represented by a solid line, and a cover 13 also represented by a two-dot chain line. Fig. 1 (c)
FIG. 4 is a DD sectional view in which the cover 13 is also represented by a solid line.

That is, the metal wire gutter connection article 11 of the present invention is
A feature is that a cover mounting claw 14 for mounting the cover 13 to the base 12 is fixed integrally with the base 12, instead of separately preparing a connection fitting for mounting the cover 13.

The base 12 includes a bottom portion 15, vertical side portions 16 on both sides thereof, and a cover mounting claw. Both end portions of the bottom surface portion 15 are slightly lifted, and are portions that are overlapped on the end portion of the base of the metal wire gutter (not shown) and press it. Of bottom part 15,
At a position slightly off the cover mounting claw 14, the mounting hole 17
The base 12 is fixed to the mounting surface by screwing a screw (not shown) through the mounting hole 17 into a mounting surface such as a wall surface.

The cover mounting claws 14 are formed so as to extend in an L-shape from one side 16 of the base 12 to a position above the center of the bottom 15.
Formed integrally with 16. In the case of FIG. 1, two cover mounting claws 14 are provided on separate side portions 16 near both ends. A swelling reinforcing rib portion 18 is formed by press working over the cover mounting claw 14 and the side portion 16 of the base 12 continuous therewith. A screw hole 19 is provided in the cover mounting claw 14. Side 16 opposite to tip of cover mounting claw 14
There is a sufficient distance between the wire and the wire to allow the wire to be inserted, facilitating the storage of the wire, and at the same time, ensuring the ordering and holding of the wire. In order to make the position of the mounting hole 17 as close to the end as possible, one side of the horizontal portion of the cover mounting claw 14 is an oblique side. If the position of the mounting hole 17 is close to the end, the end of the bottom portion 15 can be strongly pressed against the end of the base of the metal wire gutter when tightening the screw through the mounting hole 17.

The cover 13 covers the base 12 and forms a space 20 for electric wires between the cover 13 and the base 12. A screw hole is provided on the cover 13 at a position corresponding to the screw hole 19 of the cover mounting claw 14.
21 is provided.

When attaching the cover 13 to the base 12, the cover 13 is put on the base 12 so that the screw holes 21 match the screw holes 19, and the screws 22 are passed through and tightened. By tightening the screws 22, the cover 13 is pressed against the mounting surface. At this time, the cover mounting claw 14 receives a stress in the direction of extending the L-shaped bending, but since it is reinforced by the rib portion 18, even if it is supported on one side, this stress can be countered.

When the cover 13 is mounted, there are two movable parts, the cover 13 and the screw 22, and the cover 13 is in sliding contact with the base 12 and is relatively immovable. The work can be made extremely easy, and one worker can complete the work quickly and reliably even in the case of mounting work on a vertical wall surface.

In the above description, the connection article 11 for a flat bend in FIG. 1 has been described. However, in the case of another connection article for a metal wire gutter, completely the same workability is secured by making the structure the same. can do.

(Effects of the Invention) As described above, according to the present invention, the cover mounting claw that protrudes in an L-shape from one side of the base to above the center of the base is provided on one side of the base. The cover mounting claw is formed integrally with the cover mounting claw, and a rib portion is formed over one side of the base continuous with the cover mounting claw, and a screw for mounting the cover to the base is formed on the cover mounting claw. By providing screw holes to be screwed in, the cover mounting claws are integrally formed as one-sided support, so that easy wiring is ensured, and at the same time, the number of movable parts at the time of screwing is reduced, and one-sided support is achieved. For this reason, since the low strength is reinforced by the ribs, it is possible to provide a metal wire gutter connection article in which the cover can always be reliably and easily mounted.

[Brief description of the drawings]

FIG. 1 is an assembled view of a connection product for a flat bend, which is one type of a connection product for a metal wire gutter according to an embodiment of the present invention, FIG.
The figure is a perspective view of a connection product for a flat bend, which is one type of a connection product for a metal wire gutter, FIG. 3 is an assembly diagram of a connection product for a conventional flat bend, and FIG. 4 is a view of a conventional connection fitting. (A) is a plan view, (b) is a BB sectional view, and (c) is CC.
It is sectional drawing. 11 Connection accessories for planar bending, 12 Base, 13 Cover, 14 Cover mounting claws, 15 Bottom surface, 16 Side surfaces, 17 Mounting holes, 18 Ribs , 19 ... screw holes, 20 ...
… Train space, 21… Screw hole, 22… Screw.

Claims (1)

(57) [Scope of request for utility model registration] 1. A base comprising a bottom portion and a vertical side portion on both sides of the bottom portion, the base being fixed to a mounting surface, and being detachably attached by screws so as to cover the base, between the base. In a metal wire gutter connection article having a cover that forms a space for passing electric wires, a cover mounting claw that projects in an L shape from one side of the base to above the center of the base, Formed integrally with one side of the base,
A rib portion is formed over the cover mounting claw and one side portion of the base that is continuous with the cover mounting claw, and the cover mounting claw is provided with a screw hole into which the screw is screwed. Characteristic metal gutter connection supplies.