JPS647565B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a shaped material that can be provided inexpensively and quickly, and a shaped object such as concrete that can be made using the shaped material.

JP-A No. 49-124116 discloses that a foamed thermoplastic material is cut into a mold having a desired shape using a heated nichrome wire or a cutting tool such as a knife, and ready-mixed concrete or the like is placed on the mold. A method for manufacturing a shaped object is disclosed by removing the mold image after curing. The above-mentioned publication exemplifies heated nichrome wire and blades as cutting tools, but although nichrome wire can be used for cutting simple straight lines and curves, and for gouging, it can be used to cut complex shapes such as facial shapes and facial expressions. However, due to the melting point of the thermoplastic material and the heating temperature of the nichrome wire, there was a high possibility of deep carving, and it was also difficult to form sharp corners. . Furthermore, cutting with a knife is not only unsuitable for forming concave portions, especially for forming flat bottom surfaces, but also has the risk of deeply carving soft thermoplastic materials, and also requires a long cutting time. The point was hot.

In addition, in the book written by Tamotsu Domoto (a collection of ideas for making use of styrofoam, pages 18 to 28, published by Seibundo Shinkosha in 1971), there is a book about cutting styrofoam using frictional heat.
Disclosed are cutting techniques such as cutting with electric heat using nichrome wire, cutting with a knife or a saw, techniques for gouging with nichrome wire, and techniques for finishing with a file.

When we actually created the uneven pattern, there was only a small amount of cutting work, and there was a lot of gouging work and finishing work, especially the gouging work.Although nichrome wire can be used for gouging simple shapes, it can be used for gouging complicated shapes. There was a problem that it was either inappropriate or impossible. Files are also used for finishing.
Gouging it out with a file would require a lot of effort and time and would be impractical. In other words, it is convenient to have sandpaper for finishing surfaces and corners, or a file for metalworking, as shown in the file column on page 28 of the idea craft collection above. Both are fine-grained and can be finished lightly without using too much force. As it is written, it is not a gouging thing but a finishing thing.

The object of the present invention is to provide a shape that solves the above-mentioned problems, and a shaped object made using the shape.One of the shapes of the present invention that meets the above-mentioned purpose is: The foamed thermoplastic material is engraved with a steel wire brush to form an uneven pattern. It is further characterized by being finished with paper to form an uneven pattern. Furthermore, the shaped object of the present invention is produced by engraving a foamed thermoplastic material with a steel wire brush or by finishing it with paper to form an uneven pattern. It is characterized in that it is produced by providing a hardening raw material made of a resin-based, synthetic rubber-based, silicone rubber-based, or mixed composition of these, and removing the above-mentioned shape after the hardening raw material is cured.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

In Figure 1, the surface of a foamed thermoplastic material (foamed polystyrene, foamed polyethylene, etc.) 1 is heated and melted using a nichrome wire (not shown) to dent it to a point indicated by the dotted line 2, which is slightly shallower than a predetermined depth. , Shape A is shown in which rough depressions are formed in a roughly gouged state, then engraved into a predetermined uneven pattern using a steel wire brush, and then finished with paper to form a precise uneven pattern.

Figure 2 shows the shape Aa made by the above process being attached to the inside of the temporary frame B by an appropriate means, and then attached to the other side of the temporary frame.
It shows the place where fresh concrete 3 is poured between B' and temporary frame B, after the fresh concrete 3 has hardened.
By removing B' and the shape material Aa, a manufactured concrete shape is obtained in which an uneven pattern is formed on the surface from which the shape material Aa is removed. The above-mentioned structure can be used as a wall, but if the temporary frame B with the frame Aa attached is placed horizontally and ready-mixed concrete is poured on top of it, a floor with an uneven pattern on the ceiling can be created. I can do it.

FIG. 3 shows an example of a human figure (shaped object) made of concrete, and FIG. 4 is a cross-sectional view when the human figure is a hollow body. Figure 5 shows a shaped material Ab with unevenness forming the external shape of a human figure attached to the outside of an inner mold C made of Styrofoam, clay, etc., with a distance between the thickness of the ready-mixed concrete to be poured. Temporary frame
The figure shows a state in which fresh concrete 3a is placed between the shape material Ab and the inner mold C.If the temporary frame Ba and the shape material Ab are removed after the fresh concrete 3a hardens, the inner mold C Obtains a buried human image. It goes without saying that it is possible to place reinforcement between the profile Ab and the inner mold C and pour the ready-mixed concrete 3a. It's okay. Furthermore, when the inner mold C is made of polystyrene foam, it can be heated and melted to form a hollow human figure as shown in Figure 4, and by placing reinforcement in the hollow part and pouring ready-mixed concrete, it can be made into a solid figure. It becomes a human figure made of concrete.

FIG. 6 shows a method for molding a hollow figure as shown in FIG. 4 in one step. That is, a temporary frame Bb to which the shape material Ac forming the inner surface of the hollow figure is attached is framed, and the shape material Ad forming the outer shape of the figure is placed at a distance between the thickness of the ready-mixed concrete poured on the outside. Frame the temporary frame Bc with the attached frame Bc, place reinforcing materials such as steel frames, reinforcing bars, and expanded metal between the shapes Ac and Ad, and pour fresh concrete 3b. If the profile is removed, a hollow figure is obtained.

In addition, in Figures 5 and 6, the inner mold C or the profile Ac are attached without the provision of a temporary frame Bb.
Needless to say, when pouring ready-mixed concrete into AB or shape Ad, a solid human figure can be obtained. In addition, human figures can be divided horizontally as shown by the dotted lines in Figure 3, vertically as shown by the dotted lines in Figure 4, or divided at arbitrary points where the joints are not noticeable. It is possible to create a human figure by making them in an atelier and assembling them.

FIG. 7 shows an example of a method for manufacturing divided pieces in such a case. That is, ready-mixed concrete 3c is poured into a temporary frame Bd to which the shape material Ae that forms the outer shape of the figure is attached, and a temporary frame Be to which the shape material Af to form the inner shape is attached,
After the fresh concrete 3c has hardened, the temporary frame and the shapes are removed to obtain divided pieces of human figures.

FIG. 8 shows a manufacturing method for one example of a hollow shaped article. First, the steel frame structure 5 is installed on the foundation 4, and the inner temporary frame Bf to which the inner profile material Ag is attached is fixed using the supports 6 attached to the steel frame structure 5, and reinforcing materials such as reinforcing bars are further arranged. After that, fix the outer temporary frame Bg with the outer shape material Ah attached with the thickness of the ready-mixed concrete placed on the outside, and pour the ready-mixed concrete 3d from an injection port (not shown), and after the ready-mixed concrete 3d hardens, temporarily By removing the frame, the shape material, and the support, a modeled object having an uneven surface formed by the shape material is obtained. In the figure, 4' is a foundation installed at the bottom of the concrete. In the above embodiment, the inner frame member Ag is not necessarily necessary, and the frame body, supports, and inner frame may be left as they are, and only the outer frame and outer frame may be removed. The above method can be used to produce human figures and the like.

FIG. 9 shows an example of a joint between two split pieces on both sides using a bolt 9 using a perforated connecting plate 8 and a nut 7 that is buried with the tip of the reinforcing bar screwed into one side and exposed on the other side. The reinforcing bars shown and screwed into the nuts are located within the cylindrical reinforcing bar network 10 of the divided pieces and are integrally joined. 11 is an elastic material fixed to one of the divided pieces.

FIG. 10 shows a nut 7 which is loosely fitted into the corresponding recesses of the divided pieces on both sides to provide ready-mixed concrete 13, and a nut 7 which is buried with the threaded end of the reinforcing bar screwed into one side and the other side exposed. , 7 is shown in which a perforated connecting plate 8 is installed and connected with bolts 9, 9.
1 is an elastic material fixed in advance to one of the divided pieces.

That is, the divided pieces manufactured by the method shown in FIG. 7 are combined using the method shown in FIGS. 9 and 10 or other known joining methods to create a shaped object with unevenness such as a human figure or a tower. You can make it. Incidentally, the divided pieces may be arranged and connected by using the method shown in FIG. 8 and using supports on the outside of the steel frame structure.

In this invention, as described above, cement-based, gypsum-based, synthetic resin-based, or a mixture thereof can be used as the hardening raw material, and when making a male mold using the shape of this invention as the original shape, rubber can be used as the hardening raw material. Materials such as silicone rubber, clay, and plaster can be used.

This invention is constructed as described above, and a foamed thermoplastic material is engraved with a steel wire brush (steel wire brushes are used for removing rust, etc., and have not been used for engraving until now). A single steel wire pierces the foamed thermoplastic material and can be scraped off, making it difficult to over-carve and making the carving extremely quick.
Bottom engraving is also easy, and compared to engraving using nichrome wire, it has the effect of engraving complex patterns at will. Furthermore, by applying a paper finish, the surface can be finished in even more beautiful detail. In addition, objects made using the above-mentioned shapes can be made by a simple method of pouring hardened raw materials, so statues of people, monuments, etc. can be provided easily and inexpensively, structures, PC versions, etc. Alternatively, it is extremely useful as it can make the surface of GRC plates etc. luxurious and add value.

[Brief explanation of drawings]

Figure 1 is a cross-sectional view showing one example of a method for manufacturing a profile;
The figure is a longitudinal sectional view showing one example of a method for manufacturing a modeled object, FIG. 3 is a side view of an example of a human figure, FIG. 4 is a cross-sectional view of a hollow human figure, and FIG. 5 is an example of a method for manufacturing a human figure. FIG. 6 is a cross-sectional view showing another example of the human figure manufacturing method;
FIG. 7 is a cross-sectional view showing one example of a method for manufacturing divided pieces;
The figure is a longitudinal sectional view showing one example of a method for manufacturing a shaped article, and FIGS. 9 and 10 are sectional views showing two examples of joints of divided pieces. A, Aa, Ab, Ac, Ad, Ae, Af, Ag, Ah...
...Shape, B, B', Ba, Bb, Bc, Bd, Be, Bf,
Bg……Temporary frame, 3, 3a, 3b, 3c, 3d……
Fresh concrete.

Claims (1)

[Claims] 1. A shape material characterized by forming an uneven pattern by engraving a foamed thermoplastic material with a steel wire brush. 2. A shaped material made of foamed thermoplastic material, engraved with a steel wire brush, and then finished with paper to form an uneven pattern. 3 The foamed thermoplastic material is engraved with a steel wire brush, or further paper-finished to form an uneven pattern, and the uneven surface of the material is coated with cement-based, gypsum-based, synthetic resin-based, synthetic rubber-based, A shaped article characterized in that it is produced by providing a hardening raw material made of silicone rubber or a mixed composition thereof, and removing the shaped material after the hardening raw material has hardened.