JPS59114389A - Corner connection of window frame material - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention relates to a corner joining method for window frame materials.

When air-tightness and water-tightness are particularly required for the corner joints of aluminum sashes or window frames molded from hydraulic inorganic materials, apply butyl sealer to the end faces of these joints, interpose joint fittings, and tighten with screws. is common. However, with such a joining method, it is almost impossible to completely close the gap between the joining end surfaces of the window frame. In particular, if the window frame material is deformed or has a high rigidity and is not compatible with the butyl sealer, gaps are likely to form.

The present invention was made with the aim of solving this further drawback in corner joining of window frame materials, and involves connecting window frame materials with joining metal fittings, injecting urethane into a part of the joining corner and hardening with foaming. In particular, it proposes a method for joining window frame materials that are strong and have good moisture resistance.

The window frame material of the present invention is made of metal sash or stone, for example.
)A Inorganic extruded material such as puffer fish extruded material is used. Among these, in order to use inorganic extruded materials for window frame materials, corner joining is one of the important points.

In other words, from a functional point of view, it is possible to completely close the gap between the joint end surfaces of the corners and obtain a joint structure with better water resistance than the conventional joining method, and from an economic point of view, such a joint structure can be obtained by as simple work as possible. That's true.

The present invention makes these possible by using a joining metal fitting and urethane, and the window frame material is hollow for insertion of the joining metal fitting and injection of urethane.

On the other hand, the joining fittings are usually bent into an L shape to match the angle of the window frame materials to be joined, and by screwing the window frame materials and the joining fittings together, the window frame materials can be firmly connected to each other. do. Also,
The tip of this lL-shaped joining fitting has a bent part that protrudes to block the hollow interior of the window frame material, and these bent parts are used for injecting urethane into a part of the joining corner of the window frame material. It is designed to form a painting room. This compartment is a space of a predetermined size extending on both sides of the joint end surfaces of the window frame materials, and has a sufficient volume to inject the desired urethane and foam and harden it. - Note that metal materials are usually suitable for the joining fittings due to their strength and workability, but synthetic resins, FRP, etc. can also be used.

Next, embodiments of the present invention will be specifically described with reference to the drawings.

FIG. 1 is a partial cross-sectional view of a part of the joining corner of a window frame material obtained by carrying out the present invention, where "" is a window frame material made of inorganic extruded material, 2 is an L-shaped joining metal fitting, and 3 is a The bent portion 4 provided at the tip of the joining fitting is a screw for connecting the window frame material 1 to the joining fitting 2 by tightening them together.The window frame material 1 is illustrated in FIG. It is a hollow member with a rectangular cross section, and a reinforcing lip 8 is conveniently formed in the hollow part in the extrusion direction.The joining end surface of the window frame material is cut according to the joining angle. The reinforcing lip 8 near the entrance is partially cut out as necessary so that the joining fitting 2 can be inserted into the hollow end.

Fig. 2 shows the joining fitting 2, in which the L-shaped tip protrudes toward the hollow interior when inserted into the joining end of the window frame material, and the bent portion is bent to block this hollow part. It has 3. Furthermore, a notch 7 is provided from the bent portion 3 toward the L-shaped bent portion in correspondence with the reinforcing rib 8 of the window frame material l, and the joining fitting is attached to the hollow end of the window frame material. When inserted, this notch 7 is aligned with the reinforcing rib. 6 is a screw hole for the screw 4.

When the window frame material 1 is inserted with the joint fitting 3 at its joint end as shown in Fig. 3, and with these joint end surfaces aligned, the window frame material 1 and the joint metal fitting 2 are fastened together with screws 4. , joining metal fittings 2
A compartment 5 is formed at a part of the joining corner of these window frame materials 1 by blocking the hollow part by the bent part 3 of the joining fitting.

In the present invention, as illustrated in FIG. 3, a urethane injection tube 9 is inserted into the compartment 5 from the side wall of the window frame material 1, and urethane is injected into the compartment 5 from the tube and is foamed and hardened. A part of the joining corner of the window frame material 1 that is connected to the joining fitting 2 is filled with foamed urethane in its hollow interior, so that the joining surface is completely sealed instead of being made of urethane foam to obtain an even stronger joining structure. Since it is sealed, a joint structure with good watertightness can be obtained.

In the embodiment, the window frame materials 1 are joined at right angles, but by changing the bending angle of the joining fittings 2, the window frame materials can be joined at a desired angle. Also,
When connecting the window frame materials using the joining metal fittings 2, it is desirable to push the joining metal fittings along a part of the inner corner of the window frame materials so that the screws 4 can be tightened and fixed from the inside of the window frame materials.

A joining fitting is provided on a part of the outer corner of the window frame material, and a screw 4 is tightened from the outside. However, if the screw holes are provided on the outside in this way, there is a risk that the water tightness will be impaired from the screw holes.

Since the present invention is configured as described above, it is possible to significantly improve corner joints, which have hitherto been a weak point in terms of performance, and is particularly suitable for corner joints of window frame materials made of inorganic extruded materials. do.

[Brief explanation of drawings]

The drawings relate to embodiments of the present invention; FIG. 1 is a cross-sectional view of a part of the joint corner, FIG. 2 is a perspective view of the joint metal fitting, and FIG. 3 is a perspective view of the joint when assembled. In the figure, 1 is a window frame material, 2 is a joining metal fitting, 3 is a curved part,
4 is a screw.

Claims (1)

[Claims] 1. A +L-shaped joining fitting having a bent portion at the tip is inserted into the joining end of a hollow window frame material to join the window frame material and the joining fitting to the window frame material. The window frame materials are joined together by screwing them with their end surfaces aligned, and urethane is injected into a portion of the corner of the window frame materials formed by the bent portion of the joining fitting. A corner joining method for window frames that is characterized by foam hardening. 2. The corner joining method according to claim 1, wherein an L-shaped joining fitting is provided at a part of the inside joining corner of the window frame material. 3. A method for corner joining window frame materials according to claim 1, characterized in that urethane is injected through an injection port provided in the window frame material.