JPS5922236Y2 - Integrated structure of aluminum sash etc. for precast concrete - Google Patents

Description

[Detailed description of the invention] This invention relates to an integrated structure of aluminum sash etc. to precast concrete.

Today, all kinds of concrete structures, including houses, are constructed using the prefabricated method instead of the former method of pouring on site, and the latter method is now the mainstream.

The first reason why the prefabricated method became mainstream is the development of precast concrete, which is a method of pouring concrete at a factory in order to streamline construction, save labor, and reduce construction costs.

However, the precast concrete construction method cannot be said to be perfect in all respects.

As an example, when other members, such as aluminum sash, are attached to precast concrete, there is a noticeable difference in expansion coefficient between the two, which causes peeling, causing water leakage and falling off.

This idea was devised in view of the above-mentioned circumstances, and its purpose was to improve the structure of aluminum sash and other members to be buried or cast in precast concrete to minimize thermal expansion. The purpose is to improve the compatibility between concrete and other members such as aluminum sash, and to eliminate peeling.

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

Figure 1 shows the structure of the installation of aluminum sash and precast concrete. In the figure, reference numeral 1 is the aluminum sash, and the outer periphery 2 of this aluminum sash 1 has an inverted T-shaped fin 3 and an L-shaped fin 3. The locking piece 4 is molded integrally with the sash, and the fins 3 and the locking piece 4 are buried in the precast concrete 5, so that the aluminum sash 1 is firmly attached to the precast concrete 5.

By the way, the fins 3 and the locking pieces 4 are arranged at a predetermined pitch (interval) along the periphery of the sash as shown in FIGS. 2 and 3.
Therefore, by erecting the cut-off fins 3 and the locking pieces 4 in an unconnected manner, the thermal expansion of the aluminum member (approximately twice as much thermal expansion as that of precast I/concrete) is absorbed and alleviated, and the aluminum and precast It is possible to improve the conformability of the concrete 5 and prevent peeling due to distortion.

Since the buried part of the fin 3 is formed in an inverted T-shape, the locking edges 3 a and 3 b will naturally form, and this part will be filled with poured concrete, so it will not only be necessary to suppress peeling, but also to keep it in place. Can ensure firm installation.

Since this invention is characterized in that a plurality of fins are provided at a predetermined pitch, the shape of the fins is not particularly limited to the T-shape.

6 in the figure is a glass door fitted into a sash.

Next, the operation of this invention will be explained using the above configuration.

The fins 3 and locking pieces 4 erected on the outer periphery of the aluminum sash 1 are integrally molded at a predetermined pitch, and the notched fins 3 and locking pieces 4 are discontinuously formed at a predetermined pitch, so that thermal expansion of the aluminum member is prevented. Thermal expansion generated only from these parts has a smaller expansion coefficient than that of continuous thermal expansion, so it is all absorbed and relaxed by the precast concrete 5 and does not cause any peeling force.

Further, since the locking edges 3 a and 3 b of each fin 3 exhibit sufficient locking force against thermal expansion strain, peeling can also be suppressed by this.

Furthermore, when placing and filling the precast concrete 5, since the fins 3 and the locking pieces 4 are discontinuous and there is a sufficient gap between them, the concrete is filled extremely efficiently, which may cause re-peeling. Unfilled areas can be completely eliminated.

In the above embodiments, aluminum was used as the sash member, but the same effect can be obtained with the same structure as with aluminum, which has thermal expansion, and the invention is not limited to the above-mentioned aluminum member. isn't it.

Since this invention has the above-mentioned structure and function, it is extremely easy to prefabricate precast concrete construction members with aluminum sashes attached, and it is possible to create inexpensive sashes that will not only prevent the sashes from peeling off or water leaking due to this, but also from falling off. There are various practical effects such as being able to provide a precast concrete construction member with attached precast concrete.

[Brief explanation of the drawing]

Figure 1 is a vertical sectional view of the main part showing one embodiment of this invention, Figure 2
The figure is a side view taken in the direction of arrow A shown in FIG. 1, and FIG. 3 is an explanatory diagram showing the installation structure of the entire sash made into a prefabricated unit. 1... Satsushi (aluminum parts, etc.), 3...
・Fins, 3a, 3b...Locking edge, 4...
...Locking piece, 5...Precast concrete.

Claims (1)

[Scope of utility model registration request] A plurality of fins are provided at a predetermined pitch around the area where the sash made of aluminum material comes into contact with the precast concrete.
An integrated structure of aluminum sash, etc. for precast concrete, characterized in that the fins are embedded and integrated in precast concrete when installing the sash.