JPH0674024U - Electric wire box - Google Patents

Abstract

(57) [Summary] [Purpose] In an electric wire box, the screws used to fix the lid panel to the box body can be carried and handled together with the box body. Be able to hold it in the box body without screwing it into the hole. [Structure] Screw holder 15 temporarily holding screw 20
Is hooked on the protrusion 4 provided integrally inside the box body 1.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an electric wire box, and more particularly to an electric wire box in which a lid panel is screwed to an opening of the box body by using a screw hole provided in the box body.

[0002]

[Prior art]

 Conventionally, in this type of electric wire box, the screw used when screwing the lid panel into the screw hole formed in the box body is screwed into the screw hole formed in the box body before being carried into the construction site. After the electric wire is processed using the electric wire box, the lid panel is attached to the opening of the box body using the screw. Therefore, when installing the lid panel, it is necessary to remove the screw that is screwed into the screw hole of the box body and then hold the lid panel with the screw.

[0003]

[Problems to be solved by the device]

 For this reason, conventionally, on the side of the manufacturer of the electric wire box, it takes time and effort to equip the box body with a screw hole and screw the screw into the screw hole to hold it. There was a problem that it took time and effort to screw the lid panel back into the screw hole after removing the screw that was attached.

Further, since the box body is generally molded with synthetic resin, in order to provide a screw hole formed in such a synthetic resin box body with a sufficiently large screw tightening strength, a metal body is used. There was a problem that the extra cost accompanying the provision of the screw hole was added, such as the need to take measures such as embedding the nut body in the resin layer, etc., and the manufacturing cost of the electric wire box was high. .

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an electric wire box that does not necessarily need to have a screw hole in the box body. In addition, the present invention can eliminate the trouble of the manufacturer side screwing the screw into the screw hole portion of the box body, and the builder side labor of removing the screw screwed into the screw hole portion. An object of the present invention is to provide an electric wire box which can be omitted and can be transported together with the box body without losing the screws used for screwing the lid panel.

[0006]

[Means for Solving the Problems]

 The electric wire box according to the invention of claim 1 is provided with a screw hole portion at a predetermined position inside the box body, and the lid panel is screwed to the opening portion of the box body by using the screw hole portion. In the above, the projection for hooking the screw holder temporarily holding the screw used for screwing is integrally provided inside the box body.

In the electric wire box according to the invention of claim 2, a screw hole is provided at a predetermined position inside the box main body, and the lid panel is screwed to the opening of the box main body by using the screw hole. In the electric wire box, the attachment / detachment means for attaching / detaching the lid panel to the opening of the box body without screwing, the screw used for screwing, the screw holder capable of temporarily holding this screw, and the box body And a protrusion for hooking the screw holder 0 integrally provided inside the.

[0008]

[Action]

 According to the structure of claim 1, by hooking the screw holder temporarily holding the screw on the protrusion, the screw can be transported or handled together with the box body. Then, at the construction site, the screw holder is removed from the protrusion and the screw is removed from the screw holder, and the lid panel is screwed and attached to the box body with the screw. If the screw hole is a screw hole, a general mounting screw can be used as the screw, and if the screw hole is a simple hole, the tapping screw can be used as the above screw. .

According to the structure of claim 2, the screw holder temporarily holding the screw is hooked on the protrusion, and the lid panel is attached to the opening of the box body by the attaching / detaching means to transport or handle the electric wire box. It is possible to Then, at the construction site, after removing the lid panel from the box body, the screw holder is removed from the protrusion and the screw is removed from the screw holder, and the screw fixes the lid panel to the box body. Be installed. It is also possible to use a tapping screw as in the first aspect of the invention.

[0010]

【Example】

 FIG. 1 is an external perspective view of an electric wire box A according to an embodiment of the present invention.

A pedestal portion 2 having screw holes 3 is provided at all inner corners of a rectangular box-shaped box body 1 in the electric wire box A, and one of the pedestal portions 2 is provided with a protrusion 4. Has been. Further, a concave portion 6 is formed at a proper position on the inner surface of each side wall 5 of the box body 1, and a concave cutout portion 7 is further formed at a proper position on the edge of each side wall 5. The box body 1, the protrusions 4, and the pedestal portion 2 are integrally formed of a hard vinyl chloride resin having excellent impact resistance.

The lid panel 8 is made of a rectangular plate of a size and shape that closes the opening 1 a of the box body 1, and has a corner portion with a screw corresponding to the screw hole 3 on the box body 1 side. An insertion hole 9 is provided. In addition, an engaging projection piece 10 corresponding to the recessed portion 6 on the box body 1 side is provided at an appropriate position on the back surface side of the lid panel 8. Further, a recessed portion 11 corresponding to the recessed portion 7 on the box body 1 side is formed on the outer edge portion of the lid panel 8.

Reference numeral 15 denotes a screw holder made by cutting a synthetic resin sheet such as vinyl chloride resin into an elongated shape, and has a hole 16 at one end thereof as shown in FIG. A required number of screw holding holes 17 ... Are provided in appropriate places. In the screw holder 15 of the illustrated example, a rigid hard vinyl chloride resin is used as the material, and the screw holding holes 17 ... Are provided with cuts 17a to facilitate the screw insertion / removal. The screw holder 15 has a role of temporarily holding the screw 20 by inserting the screw 20 into the screw holding hole 17.

Here, the invention of claim 1 is directed to the electric wire box A in which the protrusion 4 is integrally provided on the box body 1, and the screw holder 15 is hooked on the protrusion 4. Further, the invention of claim 2 attaches / detaches means to / from the box body 1 of the lid panel 8 constituted by the recessed portion 6 and the engaging projection 10 described above, the screw 20, the screw holder 15, and It is intended for the electric wire box A having the projections 4 described above, and the lid panel 8 is transported or handled while being attached to the box body 1 without being screwed.

In the electric wire box A described above, on the manufacturer side, the screw holder 15 temporarily holding the screw is hooked on the protrusion 4 by passing the hole 16 through the protrusion 4 as shown in FIG. Then, the lid panel 8 is aligned with the opening 1a of the box body 1, and the engaging projection 10 is engaged with the recessed portion 6 as shown in FIG. By doing so, the screw 20 does not move around inside the box body 1 during transportation, and the screw 20 is lost or the lid panel 8 is lost during transportation or other handling. There is no danger of

After the electric wire box A is attached at a predetermined position, it is left with the lid panel 8 attached to the box body 1 until, for example, an electric work is performed. During this period, the lid panel 8 is only mounted with the engaging projection 10 engaged with the recessed portion 6, and the screw holder 15 that temporarily holds the screw 20 is mounted on the box body 1. It is still hooked on the protrusion 4 inside.

When performing electrical work, first, the lid panel 8 is removed from the box body 1. This removal work involves inserting a tool such as a screwdriver between the recessed portions 7 and 11 (see FIG. 3) provided on the box body 1 side and the lid panel 1 side to pry open the lid panel 8 and engage. This can be easily performed by removing the protruding piece 10 from the recessed portion 62. After removing the lid panel 8 in this way, the screw holder 15 is removed from the protrusion 4 and the screw 20 is removed from the screw holder 15, and the screw 20 removed from the screw holder 15 is inserted into the opening of the box body 1. The lid panel 8 is attached to the opening 1a of the box body 1 by screwing it into the screw hole 3 through the screw insertion hole 9 of the lid panel 8 aligned with 1a. Before the lid panel 8 is attached, the electric wire is processed inside the box body 1. In the electric wire processing step, a hole is formed in the side wall 5 of the box body 1 or a conduit tube connector is installed in the box. The electric wire is routed in the internal space of the box body 1 by being attached to the body 1.

A tapping screw can be used as the screw 20. In that case, the screw hole portion 3 is provided as a pilot hole into which the tapping screw is screwed. According to such an electric wire box A, since the screw hole 3 can be a simple hole having no thread groove, the structure of the molding die of the box body 1 becomes simple and the manufacturing cost is low. It has the advantage of Of course, a metal nut body may be embedded in the pedestal portion 2 and a general mounting screw may be screwed into the nut body.

As a model of an electric wire box to which the present invention can be applied, a model attached to a vertical rail or a horizontal rail of a building, a type embedded in concrete, an outer wall panel or an inner wall panel of a building is used. There are various types such as those that can be attached.

[0020]

[Effect of device]

 According to the electric wire box of the present invention, the manufacturer can save the trouble of screwing the screw into the screw hole of the box body, and the worker can save the trouble of removing the screw screwed into the screw hole. You can Nevertheless, the screws used to screw the lid panel together with the box body can be transported and handled without loss. In addition, since the maker can save the trouble of screwing the screw into the screw hole of the box body, there is an advantage that the maker can easily promote the automation of the work for holding the screw in the electric wire box. Especially, according to the invention of claim 2, there is the convenience that the lid panel together with the screw can be carried and handled together with the box body.

Further, since the electric wire box of the present invention does not hold the screw by screwing it into the box body, it is possible to use a tapping screw for the screw, which allows the metal nut body to be placed in the resin layer. There is also an effect that the manufacturing cost of the electric wire box can be reduced because measures such as embedding in the wire are unnecessary.

[Brief description of drawings]

FIG. 1 is an external perspective view of an electric wire box according to an embodiment of the present invention.

FIG. 2 is a plan view of a screw holder.

FIG. 3 is a cross-sectional view showing a main part in a state where the lid panel is attached to the box body without being screwed.

FIG. 4 is a cross-sectional view showing a main part in a state where the lid panel is screwed and attached to the box body.

[Explanation of symbols]

 A Electric wire box 1 Box body 1a Box body opening 3 Screw hole 4 Protrusion 6 Recessed portion (attachment / detachment means) 8 Lid panel 10 Engaging protrusion (attachment / detachment means) 15 Screw holder 20 Screw

Claims (2)

[Scope of utility model registration request] 1. An electric wire box in which a screw hole portion is provided at a predetermined position inside the box body, and the lid panel is screwed to the opening portion of the box body by using the screw hole portion. An electric wire box, wherein a projection for hooking a screw holder temporarily holding a screw to be used is integrally provided inside the box body. 2. An electric wire box in which a screw hole portion is provided at a predetermined position inside the box body, and the lid panel is screwed to the opening portion of the box body by using the screw hole portion, Attaching / detaching means for attaching / detaching to / from the opening of the box body without screwing, a screw used for screwing, a screw holder capable of temporarily holding this screw, and a screw holder integrally provided inside the box body An electric wire box having a projection for hooking.