JPS6240030Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention is installed on the projecting corner of the wall of the building.
A thin synthetic resin material that is used for the purpose of pre-finishing the corners to create a flat surface with no irregularities, protecting the protruding corners of the wall surface from impact, and at the same time making it easier to attach wall covering materials and beautifying the wall finish. Regarding corner materials.

In recent years, it has become common for walls to be covered with wallpaper, fabric, vinyl cloth, etc.

When using this type of wall covering material, it is difficult to install it unless the underlying surface is first finished flat without any unevenness.

This is because the wall covering material is thin and soft, so it wrinkles and tears easily, and the irregularities and curved surfaces of the corners are reproduced as they are on the wall covering material, resulting in poor installation.

By the way, inexpensive gypsum board or plywood is generally used as the base for walls, but the edges of these types of boards are not smoothed and have numerous unevenness.
It is very troublesome and time-consuming to scrape off these unevenness with a plane or the like.

Moreover, the smoothing process of the cut surface obtained by cutting the plate material with a saw is also troublesome.

Therefore, the protruding corners of walls made of this type of board material are covered with corner tape such as the one disclosed in Utility Model Publication No. 55-6895, to hide the unevenness of the parts and protect the protruding corners. Attempts have been made to prevent tearing and wrinkling of wall coverings.

However, since the above-mentioned corner tape uses a thin metal plate, if the thin plate is made of iron, it can be manufactured at a low cost, but it is likely to cause poor adhesion and poor finish due to the occurrence of rust. If the thin plate is made of aluminum or stainless steel, the occurrence of rust can be eliminated, but it is expensive and impractical.

Furthermore, these corner tapes are temporarily fixed to the protruding corners with putty or adhesive, and because the fixation is not sufficient, they not only come off easily when finishing the wall, but also cause the wall covering to tear easily, and are difficult to handle. It had many drawbacks such as injury if you are not careful.

This invention is aimed at eliminating the above-mentioned drawbacks, and one embodiment will be described in detail below with reference to the drawings.The corner material 1 is made of highly flexible soft synthetic resin, has a thickness of 1 mm or less, and a width of 2 mm. 1 mm or less, preferably at both left and right ends of the hinge portion 2 in the longitudinal direction.
Flat plates 3, 3 made of hard synthetic resin having a wall thickness of about 0.5 mm are connected together so that they can be bent freely from the hinge part 2, and furthermore, an appropriate number of holes 4 are bored in the flat plates. A pressure-sensitive adhesive layer 5 is provided on the lower surface of the flat plate as required, and this pressure-sensitive adhesive layer 5 is covered with a covering paper 6.

In the figure, 7 indicates a tapered portion provided at the side edge of the flat plate 3.

Since the corner material 1 of this invention is constructed as described above, when it is used, the covering papers 6, 6 are peeled off to expose the pressure-sensitive adhesive layers 5, 5, and the pressure-sensitive adhesive is applied to the hinge of the corner material 1. The part 2 is installed at the corner of the wall surface, the protruding corner part 8 is finished first, and a wall covering material 9 such as wallpaper, fabric, vinyl cloth, etc. is pasted on top of this with adhesive to finish the wall surface. (See Figure 3).

In addition, when the pressure-sensitive adhesive layer 5 is not provided on the corner material 1, the adhesive is applied directly to the back surface for installation.

Reference numeral 10 indicates a field edge material for the projecting corner portion, and reference numeral 11 indicates a board material such as gypsum board or plywood.

The corner material of this invention is as described above and has the following characteristics.

That is, the corner material 1 has a central hinge part 2 with a thickness of 1
It is made of soft synthetic resin with a width of 2 mm or less, and has hard synthetic resin flat plates 3, 3 with a wall thickness of 1 mm or less, preferably about 0.5 mm connected to both ends, and is bent freely from the hinge part. This allows it to fit conveniently into protruding corners, protect the corners, and at the same time eliminate the need for finishing work, making it possible to install wall coverings easily and reliably.It also does not cause rust, which reduces the risk of poor adhesion or poor finishing. There is no danger of injury during construction.

In addition, since the entire corner material is formed thinly to 1 mm or less, and the tapered portion 7 is provided at the side edge of the flat plate 3, the difference in level between the protruding corner portion and the adjacent portion is extremely small, making it easy to use for wall coverings. The finished state is beautiful, and since the flat plate 3 has many holes 4, the adhesive gets into the holes when attaching corner materials or wall covering materials, improving the adhesive effect, and it can be rolled in. It is not bulky and is convenient to transport, it can be easily cut to fit the size of the construction site, so no seams occur, and it is easy to manufacture, so it can be provided at low cost, and has many practical effects.

It goes without saying that this corner material can be used for inside corner surfaces.

[Brief explanation of the drawing]

Fig. 1 is a plan view of a portion of an embodiment of the corner material of this invention, Fig. 2 is an enlarged sectional view taken along the line A-A in Fig. 1, and Fig. 3 is a sectional view of the main parts showing the state of use. be. 1... Corner material, 2... Hinge part, 3... Flat plate, 4... Hole, 7... Taper part.

Claims (1)

[Scope of utility model registration request] A flat plate 3, 3 made of hard synthetic resin having a thickness of 1 mm or less is integrally connected to both ends in the longitudinal direction of a hinge part 2 made of soft synthetic resin having a thickness of 1 mm or less and a width of 2 mm or less. An appropriate number of holes 4... are drilled in the flat plate, and tapered parts 7, 7 are formed on both ends in the longitudinal direction of the flat plate 3.
A corner material characterized by having a