CZ25284U1 - Window block - Google Patents

Abstract

The utility model relates to the field of construction, namely to the design of a window unit, which is a component of a wall or roof structure. The main technical result which is achieved when the claimed utility model is implemented consists in reducing the manufacturing cost of a known design of window unit while retaining the traditional external appearance of the window unit, and improving the thermal insulation properties while ensuring the necessary degree of air impermeability of the window unit, and can be achieved in that a known window unit, consisting of a frame and a glazing unit with a spacing frame between adjacent glass sheets which is made from a profile with a slot for fittings needed to secure the glazing unit in the frame, additionally comprises a trim, secured around the perimeter of the glass and covering the inner ledge, said trim having a seal mounted in a slot therein, while glass sheets of identical size are used in the glazing unit.

Description

The Industrial Property Office does not ascertain in the registration procedure whether the subject of the utility model meets the conditions of eligibility for protection pursuant to Section 1 of Act no. No. 478/1992 Coll.

CZ 25284 Ul

Window block

Technical field

The utility model is assigned to the building industry, namely the window block constructions, which are part of the wall or roof structure, and serve to connect the interior space with the surrounding area, to naturally illuminate the premises, their ventilation, protection against the effects of air and noise.

BACKGROUND OF THE INVENTION

In accordance with GOST 23166-99 Window blocks. General technical conditions:

The window block is a transparent construction consisting of mounting parts - window frame (chamber, chamber profile), wing sections and built-in ventilation systems, including a number of accessories when needed: blinds, roller shutters and more.

From generally available sources:

- GOST 30674-99 Window blocks made of polyvinyl chloride profiles. Technical conditions;

- Design of modern window systems of civil buildings, I.V. Bonskina, A.A. Plotnikov, A.V. Zacharov, Textbook of the Moscow State Building University (MISI MGSU). Vydavatelství Výbor, 2008. (Fig. 2.2.3.1. Construction of PVC window profiles. Combination of window frame and sash). Modern window block constructions are known, consisting of a window frame and an insulating double glazing unit with spacers between adjacent glass panes.

The window frame is fixed to the walls of the window or door opening with a fixed joint and carries all other components, including the hinge of the window or door. The sash (sash, sash) is a frame structure, insulating double-glazed frame (transparent panes), connected to the sash (frame), most commonly by a hinged or sliding joint, fixed to the frame using window fittings installed in a special sash the purpose of securing the window opening function.

Insulating double glazing is a massive product consisting of two, sometimes more, panes of glass which are joined to one another by means of spacers and hermetic sealants forming hermetically sealed chambers filled with dried air or other gas. The insulating double glazing is fixed in the sash by a glazing strip, which in addition ensures the tight squeezing of the insulating glazing against the seals located in the bearing support (sash profile outlet for sealing installation and overlapping the gap in the inter-cavity) of the sash. .

The main drawbacks of the existing window block designs include:

1. Poor light transmittance (main window function) due to the large window sash profiles.

2. Low heat savings due to the limited power choice of the insulating double glazing used.

3. The strength of the insulating double glazing is one of the factors influencing the thermal savings of the window. Insulating double glazing consists of glasses and cavities (interspace) between the glazing, which are the main thermal insulators of the insulating double glazing, and which are filled with a special gas (most often dried air, less often argon, rarely krypton). The stronger the heat-insulating interspace, the more the thermal savings of the insulating double glazing grow to the limit at which gas convection within such a gap begins. A 20 mm thick space is considered optimal. This means that an insulating double glazing with a thickness of 4 + 20 + 4 + 20 + 4 = 52 mm can be considered optimal. The thickness of the insulating glass is always less than the profile of the sashes because it is fixed by the glazing strip from the inside of the room and pressed from the outside to the sash support. In modern window constructions, insulating double glazing up to 41 mm thick is used, since the installation of a thicker double glazing requires an even more robust window sash profile, which is economically unfounded.

-1 CZ 25284 U1

4. Sufficiently high price of the structure as a whole due to the large number of components used, the amount of technological operations performed during assembly, the large proportion of profile elements in the material's own material costs. The specific weight of the profile elements, namely PVC profiles, reinforcement and sealing, is about 50% in its material cost, the ratio of insulating double glazing is about 20%, the forging ratio is about 30%.

Comparable in terms of the balance of essential features is the well-known window block design (About the development of a new window block design, SA Keljin, Light Permeable Structure Magazine, No. 1-2, 2009), considered a prototype consisting of a window frame and insulating double glazing with spacer a frame (spacer frame profile) between adjacent glass panes, made of a gas-filled window profile and fittings required to attach the insulating glass to the window frame and to provide a window opening function.

The reasons for preventing the following technical benefits from using existing structures include:

1. the need for dimensionally diverse glass panes for insulating double glazing, one of which (inside the room), which is large in size, serves to close the inter-glass cavity (gap between the frame and the insulating glass);

use of a triplex, usually expensive glass with a polished edge to close the inter-glass cavity,

2. the need to treat the inner glass perimeter with an opaque covering layer to cover sealant residues and fittings components (metal spacers);

3. use of a special gasket pressed against the glass to ensure the required degree of air permeability of the window block.

It should also be pointed out that the construction of the window frame in which the glass rests against the frame gives rise to an inadequate perception of the structure as a whole.

The aim of the utility model is to modernize existing window block designs in order to improve their main utility characteristics.

The main technical benefit in the implementation of said utility model lies in reducing the cost of construction of the window block while maintaining its traditional external appearance, in increasing the thermal insulation properties of the window block while ensuring the necessary degree of air permeability of the window panes.

The essence of the technical solution

The present technical benefit is achieved by the fact that the existing window block consisting of a frame and insulating double glazing with a spacer between adjacent glasses made of a gas-filled window profile and fittings necessary for securing the insulating double glazing to the frame, enclosing the inner chamber, with a seal installed in the groove of the lining, using glass panes of the same size in the insulating double glazing.

The use of standard double glazing units of the same size and type for window blocks allows to reduce the cost of the final product compared to the prototype, as it allows to incorporate the design into the standard technological process of manufacturing double glazing window blocks, thereby ensuring the required productivity.

The use of a window trim (cover, skirting) to close the inner chamber allows, firstly, to conceal the spacer frame profile with sealant and fittings, as well as to utilize the standard seal used in standard structures between the window opening - window sash and the fixed window - frame - to ensure the necessary degree of air permeability of the window block, and secondly, it allows to maintain the continuity of the external appearance of the product in relation to the existing window block structures with window sashes. The standard seal intended for installation in a special window groove gives the design a "mushroom" shape with the use of a seal installed in the groove

-2GB 25284 Ul holds firmly. If the gasket is to be glued to the window, the gasket must have a special sealant layer. The sealant must be selected so that it can be worked well (eg by winding it into transport disks, etc.) and the sealant must also compensate for the variation in the thermal expansion of the glass and the gasket material (that is, they must always be elastic) . All this inevitably results in higher sealing costs for the standard design.

The designed double glazing unit can be installed on all types of window frames - wooden, PVC, aluminum or plastic. This means that there is no need to remodel a number of girders, change the equipment and fixed accessories for the production of wooden, PVC and aluminum windows, since the frame, the stable and the movable pillar remain the same, the glazing bars and window wings are no longer needed.

The new construction of the window profile has the following indisputable advantages compared to the existing standard constructions in which the double glazing is installed in the sashes:

- increases light transmission by 20%,

- increases thermal savings by increasing the width of the glass to 52 mm (by 30%),

- reduces the cost (by 25%) of the structure by reducing the number of profile components (excluding the sash profile from the structure) and eliminating the entire complex of technological operations.

Clarification of drawings

In order to explain the nature of the utility model, a drawing (Fig. 1) is shown - a sectional view of a window block which illustrates the attachment of the insulating glazing unit to the frame by fitting the fittings in the groove of the spacer frame.

Example of technical solution implementation

An example of a concrete window block construction with a double-chamber insulating double-glass system gives information confirming the possibility of realization of a utility model with the above mentioned main and additional technical benefit.

The window block consists of a frame 1, a double-chamber insulating double glazing 2 with glass-spaced plastic spacer frames 3 and 4, and a window casing 5 (casing profile) mounted on the insulating double glazing and closing the inner chamber with a seal 6 provided in the groove of the casing 5. from the profiles of the spacer frame 4 of the insulating double-glazing there is a special groove 7 for fitting (forged groove), by means of which the insulating glass is fixed in the frame.

If it is not necessary to ensure the heat-insulating properties of the window (for example for interior partitions), spacer frames can be made of aluminum, less often of steel.

The spacer frame (both standard and metallised groove) is attached (glued) to the glass with special hermetic sealants that can withstand heavy loads and ensure the hermetic integrity of the insulating double glazing over a long period.

Insulating double glazing is thus installed in the window block according to standard technology - with two spacer frames, the profile of one of which has a metallised groove.

The method of manufacture and assembly of the claimed window block construction is described below.

Plastic profiles, both window casings and spacer frames, are obtained by the PVC extrusion method.

The spacer frame profile is cut to the desired dimensions at an angle of 45 degrees, then these parts are welded as a standard PVC profile with the resulting rectangular spacer frame. The spacer frame is fitted into the insulating double glazing according to standard insulating double glazing assembly technology and fixed using a hermetic sealant, after which the necessary fittings are installed in a special groove of the spacer frame profile.

-3CZ 25284 Ul

The profile of the window trim is cut to the required dimensions at an angle of 45 degrees. Then, these parts are welded as a standard PVC profile (a frame construction is obtained from a window casing in the form of a rectangle). A standard window seal is inserted into the groove of the window trim. The window siding is then glued onto the insulating double glazing (which we have already fitted with fittings) using a special sealant. When the sealant is cured, the entire structure can be fixed to the window frame.

PROTECTION REQUIREMENTS

Claims (1)

A window block, consisting of a frame and an insulating double glazing with a spacer between adjacent glass panes, made of a gas-filled window profile and a fitting for attaching the insulating glass to the frame, further comprising a glazing with a gasket in its groove, which closes the circumferential connection of the glass and the inter-glass cavities, the glass panes of the same dimensions being used in the insulating double glazing.