JPH0246574Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a synthetic resin embedded material for corner finishing that is embedded in the wall finishing material when applying finishing materials such as mortar and plaster to the wall of a building using a plastering trowel. Regarding rulers, their main purpose is to allow workers to easily and correctly break them off with their own fingertips without using any special tools at construction sites, and to change their cross-sectional shape so that they can be used as desired. At the point.

The specific structure of the present invention will be described in detail below based on the illustrated embodiment. Figures 1 and 2 show a basic example of the embedded ruler, which is made entirely of synthetic resin such as hard vinyl chloride. It is extruded and has a roughly Y-shaped cross section. That is, 10a, 10b
are a pair of leg plates that intersect at a constant angle α of about 90 degrees, and the plate surfaces have a plurality of protrusions 11 running along the longitudinal direction and a plurality of through holes 12 scattered throughout. are arranged, thereby making it firmly bonded to the wall finishing material M such as mortar, plaster, or plaster.

Reference numeral 13 denotes a corner piece integrally provided outward by a certain height H along a line bisecting the above-mentioned constant angle α from the intersection of both leg plates 10a and 10b. The cross-sectional shape of the portion is not limited to the wedge-like sharp shape shown in FIGS. 1 and 2, but may be, for example, a semicircular arc shape or an inverted triangular flat shape as shown in FIG. 3. In addition, if the protruding height H of the corner cut piece 13 is relatively high, the protrusion 11 and the through hole 12 as described above are also provided therein, but in any case, the through hole 1
2, after the ruler itself is molded, it is punched out using a suitable cutting die. β is each leg plate 10a,
10b and the corner cut piece 13, which is about 135 degrees.

Further, reference numeral 14 is a groove for a break-off guide running in the longitudinal direction of the ruler, and is arranged in a row at the corner where the corner cut piece 13 and at least one of the leg plates 10a intersect. By breaking off one of the leg plates 10a of the concave strip 14 according to the worker's wishes, the ruler itself changes from the above-mentioned approximately Y-shaped cross section to approximately L-shaped cross section as shown in FIG. This is to make it possible to use it. Therefore, as long as this idea is followed, the plate surface of one of the leg plates 10a may be set in an inclined taper shape so that the corner portion has the thinnest thickness.

However, if the grooves 14 with a constant depth D are opened in a stepped manner on the plate surface of the leg plate 10a as shown in the figure, the increase in surface area will result in a binding force (biting friction force) with the wall finishing material M. ) can be said to be even more effective in that it can also improve. In that case, the opening depth D and opening shape of the grooved strip 14 are free, and the opening may face the inner surface of the leg plate 10a, as shown in FIG. It is okay to have it facing the outside as shown in Figures 1 and 2. In any case, so that the ruler produced after the break-off exhibits a beautiful, almost L-shaped cross section, as if it were a new product, the concave stripes 14 are formed so that the ruler is substantially connected to the inner surface of the other leg plate 10b. It is preferable to arrange them on an extension line L of the inner surface so as to face the same plane above.

As shown in the modified example of FIGS.
In addition to the corner where 3 intersects, the other leg plate 10b
They can also be arranged in rows at the corners where the and corner pieces 13 intersect. At this time, the grooved line 15 provided at the latter position is formed into a V-shape that is particularly shallower than the grooved line 14 provided at the former position, and is indented so as to open toward the outer surface side. Then, after one leg plate 10a is broken off from its deep groove 14 as shown in FIG.
By changing the constant angle β at which It can also be used to finish corners on walls. Needless to say, the unbent L-shape can be used for corner finishing of projecting corner walls in the same way as the original Y-shape.

When finishing the corners of the wall surface of a building using the ruler as described above, one of the leg plates 10
Without breaking off section a, the ruler is pressed and fixed onto a wall surface finishing material M for temporary fixing painted on a wall base C such as concrete, as shown in FIG. 8, while maintaining its Y-shaped cross section. At that time, the ruler will be bonded to the finishing material M through the through holes 12 and the protruding strips 11, so the wall finishing material M of the same quality will be applied to the corner as shown in FIG. 9 until it hardens. The coating is applied uniformly along the cut piece 13. If you do this, you will have a beautiful wall with a certain thickness.

In addition, one leg plate 10a is provided with a guide groove 14.
It can be broken off and used as a ruler with an L-shaped cross section in the same manner as above for finishing the corners of projecting corner walls of buildings, as shown in Figure 10, and the selection can be made by the worker depending on the purpose. It can be done as desired, and no special tools are required for breaking it off. As mentioned above, it can also be used for corner finishing of inside corner walls as shown in Fig. 7. In addition, when extruding the ruler itself from synthetic resin, only the protruding tip of the corner piece 13 that is exposed to the outside during use is
The remaining majority of the other corner piece 13 and both leg plates 10a, 1 are selected from a good quality material of the synthetic resin in a light or light color.
If all of 0b is made of the same synthetic resin waste material in a deep or dark color, it can be said to be more beneficial in that it is possible to obtain an exterior decoration that blends in with the wall surface of the building, and also to maximize the effect of mass production.

As described above, the present invention consists of a pair of leg plates 10a and 10b that intersect while maintaining a constant angle α, and a corner piece 13 that continuously and integrally protrudes outward from the intersecting part. In the approximately Y-shaped embedded ruler made of synthetic resin, the corner portion where the corner cut piece 13 intersects at least one of the leg plates 10a is preferably made thinner by providing grooves 14 or the like. Since it is configured so that one leg plate 10a can be broken off,
When finishing a corner of a wall in a building, the worker can make the ruler itself approximately Y-shaped in cross section, or make it approximately L-shaped in cross section by breaking off one leg plate 10a as shown in Figure 4. It can be selectively used depending on the wishes and purposes of the user, and there is no need for special tools to break it off, and it can be easily and correctly broken off with one's hands, making it extremely easy to work on-site.

Furthermore, as a product, the break-off guide concave strips 14 can be applied all at once by extrusion molding on the ruler itself, and extending along the longitudinal direction is also useful for break-off operations, which increases the mass production effect. It can be said that it is a very useful idea as it has many advantages.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a basic example of an embedded ruler according to the present invention, Fig. 2 is an enlarged cross-sectional view thereof, Fig. 3 is a cross-sectional view of a first modification corresponding to Fig. 2, and Fig. 4 is a one-sided view. FIG. 5 is a sectional view of a second modification corresponding to FIG. Cross-sectional views showing the construction state of the modified example, Nos. 8 and 9
The figure is a cross-sectional view showing the construction process of the above basic example.
The figure is a sectional view showing the construction state of the ruler corresponding to FIG. 4. 10a, 10b... Leg plate, 11... Convex strip, 12
...Through hole, 13... Corner piece, 14, 15...
Concave stripes, M...Wall surface finishing material, C...Wall base,
α, β...Cross angle.

Claims (1)

[Scope of claims for utility model registration] 1. A pair of leg plates that intersect while maintaining a constant angle α
10a, 10b, and a corner piece 13 that continuously and integrally protrudes outward from the intersection thereof, in a synthetic resin embedded ruler that has an approximately Y-shaped extruded cross section as a whole, and the corner piece 13 and at least one leg plate 1
0a intersects with one of the leg plates 1
An embedded ruler for finishing the corners of a wall surface, which is characterized by being thinned to break off the 0a. 2 Corner piece 13 and at least one leg plate 10a
When thinning the corner where the two intersecting
4. The embedded ruler for finishing the corners of a wall surface according to claim 1, characterized in that the ruler is arranged in a row.