Stock material or miscellaneous articles – Structurally defined web or sheet – Fold at edge
Patent
1996-10-28
1999-08-03
Loney, Donald
Stock material or miscellaneous articles
Structurally defined web or sheet
Fold at edge
428217, 494751, B32B 304, E06B 716
Patent
active
059323124
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention relates to a sealing profile made of an elastic material to be used in sealing glass panes to profiles of windows, doors, facades, and similar closures, particularly on the side facing weathering. The invention comprises of: a profile base and a molded-anchoring wedge made of a traditional, elastic-sealing material; an inner-sealing zone in the form of a sealing lip that is positioned on the side opposite the anchoring wedge which is made of the same material; and an outer-sealing zone in the form of a sealing pad that extends from the profile base, separately from the sealing lip, and is made of an elastomeric or thermoplastic material.
In this well-known sealing profile, known in the art due to EP-PS 0 247 533, the sealing pad and the sealing lip are positioned separately from one another on a profile base so that the profile base and the anchoring wedge serve to support the two sealing components. Under the pressure of the glass pane, the sealing lip is bent inward toward the center line of the anchoring wedge. The sealing lip is slightly concave in design to allow a tighter seal when pressure is applied to the glass. Both sealing elements, the sealing pad and sealing lip, act independently of one another; that is, they are correspondingly shifted or reshaped by the glass pane pressed against them. This ensures the necessary tightness. The primary advantage of the sealing profile described here is that the elastomeric or thermoplastic material of the sealing pad makes it possible to completely install the sealing profile without creating creases in the critical-corner area. A similar sealing profile is known through EP-A-0 575 937, where the two sealing elements positioned across from the anchoring wedge on the profile base are pushed to one side. The surmised advantage here is that the proper notches, which are necessary for the installation of the seal at T- or cross-joints, are easier to place, especially when it comes to aluminum windows. Unfortunately, both seals that are known in the art only provide a seal with a 2-mm. maximum coverage space. Without more space, clean corners cannot be formed. This makes it necessary to turn to traditional techniques in which prevulcanized corner pieces or bonded mitre joints are used.
Therefore, it is the object of the invention to create a sealing profile that can be used universally, that creates a secure and even seal, and that can cover gaps of 4 mm. or more.
SUMMARY OF THE INVENTION
The above-mentioned object of the invention is attained because the sealing lip is positioned at an angle from the sealing pad. This way, the boundary between the softer material of the sealing pad and the harder material of the sealing lip is designed to extend into the foot area of the sealing lip, thereby preserving the foot of the anchoring wedge.
The foot zone of the anchoring wedge maintains its original material hardness in order to provide sufficient rigidity and, thus, to ensure a proper overall positioning of the sealing profile. Under the pressure of the glass pane, the special design of the two sealing elements (the sealing lip and the sealing pad) causes the harder material of the sealing lip's foot zone to be pivoted into the softer material of the expanded pad zone. The sealing lip is provided great elastic support, which is practically reversible, for any possible contorting. Thus, the profile seal is highly compressed. Thereby, it is given the ability to span gaps of up to 4 mm. and more. In this manner, traditional glazing techniques can be applied without any problems, even when large gaps are present as a result of errors in structural dimensions or errors in calculations. The ability to span larger gaps also makes it possible to greatly adjust the material thicknesses to the requirements of the framework construction. The improvement of K-value in accordance with insulation regulations can be achieved not only by installing the glass properly, but it can also be achieved through improved heat insulation via incre
REFERENCES:
patent: 3177534 (1965-04-01), Millhouse et al.
patent: 4537002 (1985-08-01), Ellingson
Creighton Wray James
Loney Donald
Narasimhan Meera P.
Saar-Gummiwerk GmbH
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