PL66302Y1 - Plastic window - Google Patents

Description

2 PL 66 302 Υ1

Pattern description

The subject of the utility model is a plastic window with increased fire resistance.

Plastic windows have frames and sashes made of longitudinal profile elements in which longitudinal chambers are formed. In order to give the windows appropriate properties, these chambers may contain various types of fillings.

For example, the description of Polish patent application No. 379414 shows a stiffening element of a plastic profile, which is an open longitudinal section filled with foamed material, located in the reinforcement chamber of the profile. The surface of the foamed material is directly adjacent to the inner surface of the section of the reinforcement chamber of the profile, with an air gap between the section and the profile. The foamed material is a typical polyurethane foam which has good thermal insulation properties but is a poor fire barrier.

There is therefore a need for a plastic window structure that provides a barrier to delay the spread of fire.

A plastic window according to the utility model comprises a frame and a sash, the frames of which are made of longitudinal sections of the profiles connected, and after the window is closed, they complement each other at the border of the sash contact with the frame, creating the face surfaces of the window, and inside the profiles, longitudinal chambers are formed, which the least part of the chambers is filled with polyurethane foam. The chambers adjacent to the face surfaces of the window are filled with self-extinguishing polyurethane foam.

Self-extinguishing polyurethane foam can fill more than 80% of the volume of each chamber adjacent to the face surfaces of the window.

Self-extinguishing polyurethane foam can be formed of profiles inserted into the chambers.

Self-extinguishing polyurethane foam can fill the entire volume of the chambers adjacent to the facing surfaces of the window.

The self-extinguishing polyurethane foam may be in the form of granules.

The window may contain chambers with reinforcing profiles filled with the entire volume of self-extinguishing polyurethane foam.

Chambers not containing self-extinguishing polyurethane foam may be filled with air.

The advantage of a plastic window according to the utility model is that thanks to the use of self-extinguishing polyurethane foam in the chambers adjacent to the face surfaces of the window, the window is a barrier that delays the spread of fire, and at the same time provides good thermal insulation of rooms. The window can be used both as an external and internal window, especially for multi-room buildings, for example in office buildings.

The object of the utility model is shown in the attached drawing, in which Fig. 1 shows the cross-section of the sash profile and the window frame according to the utility model.

The utility model window comprises a frame and a sash, the frames of which 210,110 are made of plastic, preferably polyvinyl chloride. Longitudinal chambers are formed within the frames 110, 210, which can be hollow chambers 130, 230 or reinforced chambers 150, 250 with reinforcing sections 120, 220, for example steel sections. A pane 101 is mounted in the sash frame 110, but contacts the sash frame 110 through a gasket 301. The sash frame 110 contacts the casing frame 210 through gaskets 302, 303.

When the sash frame 110 comes into contact with the casing frame 210, the outer surfaces of the sash frame 110 and the casing frame 210 form the window faces 102, 103 that are directly exposed to fire during a fire. The chambers 140, 240 adjoining the face surfaces of the window are filled with self-extinguishing polyurethane foam according to the ASTM D 1692 standard. Thus, they create a barrier with increased fire resistance on both sides of the window. The non-foam chambers 130, 230 contain air.

The self-extinguishing polyurethane foam may take the form of formed profiles inserted into the chambers 140, 240 and filling at least 80% of the total volume of the chambers 140, 240 or it may be in the form of granules that tightly fill the entire volume of the chambers 140, 240.

Claims (7)

3 PL 66 302 Υ1 nione 150, 250 also can be filled with the entire volume of self-extinguishing foam in such a way that the foamed material is both inside the section 120, 220 and outside. Protective claims 1. A plastic window containing a frame and a sash, the frames of which are made of longitudinal sections of profiles connected, and after the window is closed, they complement each other at the border of the sash contact with the frame, forming the face surfaces of the window, and longitudinal chambers are formed inside the profiles, at least some of the chambers are filled with polyurethane foam, characterized in that the chambers (140, 240) adjacent to the facing surfaces (102, 103) of the window are filled with polyurethane self-extinguishing foam. 2. A window according to claim The method of claim 1, wherein the self-extinguishing polyurethane foam fills more than 80% of the volume of each of the chambers (140, 240) adjacent to the facing surfaces (102, 103) of the window. 3. A window according to claim 2. A method according to claim 2, characterized in that the self-extinguishing polyurethane foam has the form of molded profiles inserted into the chambers (140, 240). 4. A window according to claim The method of claim 1, characterized in that the self-extinguishing polyurethane foam fills the entire volume of the chambers (140, 240) adjacent to the face surfaces (102, 103) of the window. 5. A window according to claim 4. A method according to claim 4, characterized in that the self-extinguishing polyurethane foam is in the form of granules. 6. A window according to claim 6. A method as claimed in claim 1, characterized in that it comprises chambers (150, 250) with reinforcing profiles (120, 220) completely filled with polyurethane self-extinguishing foam. 7. A window according to claim The process of claim 1, characterized in that the chambers (130, 230) not containing the self-extinguishing polyurethane foam are filled with air.