JPS5938607Y2 - Joint forming mold - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a joint forming mold that can be conveniently used to form joints when applying mortar or the like to the interior and exterior walls of buildings.

When exterior materials are painted on the interior and exterior walls of buildings, long potato joints or short broken joints are often formed in order to prevent cracks on the painted surface, hide the paint joints, and improve aesthetics. .

However, since joints require linear uniformity and ease of painting with mortar, etc., conventionally a solid rod corresponding to the shape of the joint is fixed at a desired position and mortar, etc. is applied around it. , a method for removing the rod after hardening, a method for embedding the part for fixing the grooved joint resin shape to the building when applying mortar and leaving the synthetic resin shape in place, and a method for creating the desired broken joint structure. Paper or synthetic resin templates made in the same shape are completely embedded during mortar coating and peeled off after it has hardened to some extent, but this is a complicated process and can be discarded or removed for reuse. There were many problems, such as the use of expensive auxiliary materials and damage to the edges of the joints when removing auxiliary tools such as solid rods, and there was no satisfactory method.

As a result of research to solve these problems, the inventor of the present invention found that it is convenient for forming joints, easy to remove after forming the joints, and does not damage the protruding corners of the joints and their inner surfaces. We have devised a mold for forming joints that does not require high construction costs as it is reusable.

The present invention will be explained below using the drawings.

FIG. 1 shows a -91 cross section of a joint forming mold according to the present invention, in which a mold material 1 and a support material 2 are combined.

The profile 1 consists of wall surfaces 3, 3', a bottom surface 4, and protrusions 5, 5', and its outer shape corresponds to the shape of the desired joint.

From the upper surface of the molded material 1, a lid-like supporting material 2 with a hollow-shaped cross section and a shallow bottom is pushed face down into a plug-like shape, and the foot portions 6, 6 on both sides protrude 5. Support material 2 received by CI
This prevents both wall surfaces 3, 3 of the mold material 10 from deforming inward.

Upper end surfaces T and 7' of both wall surfaces 3 and 3' are inclined toward the bottom surface.

FIG. 2 shows a cross-sectional view of a state in which mortar coatings 8 are applied to the outside of both wall surfaces 3° and 3' using the mold according to the present invention.

Since the upper end surfaces 7, 7 of both wall surfaces 3, 3'O of the profile 10 are inclined, it is easy to run a trowel in contact with their tips to line out the protruding corners of the joints.

The mortar cuts better than when it is level and not sloped.

After the mortar etc. have hardened, the support material 2 is first removed, and then the mold material 1 is removed, but if the mold material 1 is removed while bending the wall surface 3 or 3' inward, the inner surface of the joint will not be damaged.

A case where this bending is made easier is shown in FIG.

That is, a convex groove 9 is formed at the boundary between the bottom surface 4 and the wall surface 3 or 3'.

Since the shape material 1 is bent and removed after painting as described above, it is preferably made of an elastically deformable material, such as polyethylene, polypropylene, polyvinyl chloride, etc.

Furthermore, the angle between the bottom surface 4 and at least one of the wall surfaces 3 and 3' is selected according to the desired joint.
If the angle is greater than the above, it has the effect of making it easier to remove the mold from the painted part.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view of an example of a joint-forming mold, Figure 2 is a cross-sectional view of a case of painting using a joint-forming mold, and Figure 3 is a concave groove on the boundary between the bottom and wall of the joint-forming mold. It is a cross-sectional view when there is. 1...Shape material, 2...Support material, 3, 3'
...Wall, 4...Bottom, 5,5'...
...Protrusion, 8...Painting, 9...
Concave groove.

Claims (1)

[Claims for Utility Model Registration] 1. An elongated member made of an elastically deformable material and having a G-shaped cross section, and a long support member that is rigid and has a shallow bottom and has a G-shaped cross section. The opening surface of the mold material and the opening surface of the support material are opposed to each other, and the support material is pushed into the mold material in a plug-like manner so that the end edges of the inner surfaces of both opposing walls of the mold material are formed. A mold for forming a joint, characterized in that a protrusion is formed in the vicinity thereof to receive the two legs of the supporting material during the pressing. 2. The joint forming mold according to claim 1, in which at least one corner formed by the bottom surface and wall surface of the mold material has an angle of 90' or more. 3. The joint forming mold according to claim 1, wherein the upper end surface of the wall surface of the mold is inclined toward the bottom surface of the mold. 4. The joint forming mold according to claim 1, wherein a groove is formed in at least one of the corners formed by the bottom surface and the wall surface of the mold material. 5. The joint forming mold according to claim 1, wherein the protruding portions for receiving the two legs of the support member are L-shaped and inverted-shaped.