JPH0242959Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The invention is a protective metal fitting when electrical wiring is passed through a sandwich panel used for partitions, etc., and is used when nailing the panel from the outside. To,
This invention relates to hardware for protecting electrical wiring from nails.

(Prior art) Panels as simple partitions used when laying out interiors of houses and offices are usually manufactured by gluing decorative boards on the front and back sides of vertical and horizontal timber frame frames called rafters, Electrical wires, telephone lines, and other electrical cables are inserted and routed through the space.

(Problem to be solved by the invention) By the way, after the above-mentioned panel is installed, the wall surface of the panel is usually used by installing a shelf or attaching a wall hanging. Nailing is done from the front side of the panel through the decorative board and into the internal rafters, but since the location of the electrical wiring inside the panel cannot be seen, the nails are driven blindly, and there are many cases where the nails are accidentally driven into the electrical wiring. This may cause short-circuit accidents, etc.

Therefore, the purpose of the present invention is to provide a protective hardware that can prevent damage to electrical wiring even if a nail is accidentally driven into the electrical wiring part due to blind nailing for panel wall use. It is provided by.

(Means for Solving the Problem) In the present invention, both wing portions of a metal plate with a hinge portion formed in the center portion are each bent into a semi-cylindrical shape, and one of the wing portions is provided with a hinge portion. On the protruding curved surface side, cut and raise the wood nails from one end in the longitudinal direction parallel to the hinge part to the other end, and then turn the wing parts around the hinge part and make them into a cylindrical shape. It is characterized by protective hardware for electrical wiring inside panels, etc. that are used when closed.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

The main body of the protective hardware A is made of a metal plate, and a hinge part 1 is formed in the center of the metal plate, and both wing parts 2a and 2b on both sides of the hinge part 1 are each bent into a semi-cylindrical shape, On one of the wing parts 2a, on the side of the convexly curved surface 3 of the wing part, a wooden part driving claw 4 is formed by cutting and raising the wood part from one end side in the longitudinal direction parallel to the hinge part 1 toward the other end side.

The hinge portion 1 is for rotating the protective hardware in the unfolded state as shown in FIG. 1 by rotating its wing portions 2a and 2b and closing them into a cylindrical shape as shown in FIG. 3.
The hinge structure is achieved by punching a slit 5 through a metal plate and connecting the wing parts 2a and 2b with a thin bridging piece 6, or by reducing the overall thickness of the hinge part 1 by cutting a groove. so that it is easy to bend.

Although the blade portions 2a and 2b are semi-cylindrical in the drawings of the embodiment, they may have other semi-cylindrical shapes.

In use, the through holes 9 shown in FIG.
Protective hardware A with opened and wing pieces 2a and 2b closed
is passed through this, the wooden part driving nail 4 is driven into the rafter 8 and fixed, and the collecting wire tube (made of synthetic resin) 10 is inserted through this protective metal fitting A. Also,
When the holes 11 made in the rafters 8 are cut from the front side of the rafters as shown in Figure 6, reinforcing plates (metal plates) 12 are placed on both sides of the holes 11 to compensate for the decrease in rafter strength. , and 1 nail or wood screw
3 to the rafters 8. Incidentally, an appropriate number of necessary electric wires are passed through the collective electric wire tube 10 at once.

If you do this, even if the nails nailed into panel 7 to use the panel wall surface overlap the electrical wiring,
The nail only hits the protective hardware A and does not damage the wires in the collective wire tube 10, and
Since the nail hits the protective hardware A and is repelled, it can be seen that the nailed part is an electrical installation part.

In the drawings of the embodiment, the wooden part driving claw 4 is attached to the wing part 2a.
This is provided on the closing edge side of the other wing part 2b, in order to prevent the closing parts 14 of the wing parts 2a and 2b from overlapping in the direction of nailing from outside the panel. That is, if the closing portions 14 overlap in the direction of nailing from the outside of the panel, there is a risk that the driven nails will pierce the collective wire tube 10 and the wires inserted therein through the gaps in the closing portions 14, as shown in FIGS. As shown in FIG. 6, it is preferable that the closing portion 14 be arranged horizontally with respect to the nailing direction from outside the panel. On the other hand, since it is difficult to drive the wood part driving claws 4 into the rafters 8 in the space behind the protective hardware A and the decorative board 15, the driving work is ultimately limited to the side part of the protective hardware where it is easy to drive. Therefore, a wooden part driving claw 4 is provided on the closed end edge side of the wing part 2a.

(Effects) As is clear from the detailed description above, if the protective hardware of the present invention is used, the electrical wiring that passes through the rafters inside the panel can be suitably protected from nailing from outside the panel, and the electrical It is possible to prevent damage to wiring and the occurrence of short circuit accidents caused by this.

In addition, the protective hardware can be installed and used by simply closing the wing pieces into a cylindrical shape with the hinge portion and driving the wood nails into the rafters, so it is highly workable and practical.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a perspective view of the protective hardware in the unfolded state, Fig. 2 is a plan view of the same, Fig. 3 is a perspective view of the protective hardware in the closed state, and Fig. 4 is a perspective view of the protective hardware in the closed state.
The figure is a plan view of the same, and FIGS. 5 and 6 are drawings of the device in use. 1...Hinge part, 2a, 2b...Blade part, 3...
...Protruding curved surface, 4...Killed piece of wood.

Claims (1)

[Scope of utility model registration request] Both wing parts of a metal plate with a hinge part formed in the center part are each bent into a semi-cylindrical shape, and one wing part has a metal plate on the convex curved surface side of the wing part parallel to the hinge part. Electrical wiring inside a panel, etc., which is used by cutting and raising the nails driven into the wood from one end in the longitudinal direction to the other end, and then turning the wing parts around the hinge part and closing them into a cylindrical shape. Protective hardware.