Stock material or miscellaneous articles – Hollow or container type article – Glass – ceramic – or sintered – fused – fired – or calcined metal...
Patent
1997-06-19
1999-03-23
Krynski, William
Stock material or miscellaneous articles
Hollow or container type article
Glass, ceramic, or sintered, fused, fired, or calcined metal...
428 38, 428 77, 428122, 428192, 428210, 428410, 428417, 4284256, 428426, 296 90, 296 93, 1563099, 156322, B32B 400
Patent
active
058856706
DESCRIPTION:
BRIEF SUMMARY
The invention concerns a process for securing flexible elastic structural components and or sealing strips with transparent to translucent panes in a long-lasting, firm, and seal-tight manner to vehicle or vehicle parts made of inorganic or organic glass or combinations of the same as well as a pane for vehicles or vehicle parts firmly and tightly sealed to a flexible elastic structural component and or sealing strip.
Currently, the process of the glazing technique for glazing fixed panes, particularly vehicle windows, is carried out in that most fixed vehicle windows are attached directly onto the vehicle body; that is, they are attached by applying force.
This technology, wherein the pane is cleaned, pretreated, and provided with mounting adhesive when still on the assembly line, is called direct glazing because the pane is attached directly into the vehicle body opening.
The following advantages become evident within this process: selected;
Considerable disadvantages also stand in the way of this process and appear mainly when it is necessary to dismantle the pane.
In the case that it becomes necessary--still at the vehicle manufacturer plant--to repaint the vehicle (this affects approximately 20% of the vehicles), the panes must be either removed or dismantled. In case of damage due to accident that requires the removal of the pane, the same is cut from the flange with a knife or wire. For this purpose, the inside lining of the vehicle must be removed beforehand in many cases in order to obtain access to the inner side of the adhesion area. If the flange is damaged during separation, repairs are costly; there is also the danger of damaging the sealing strip that is connected to the pane, which would require the use of a new pane module.
The disadvantages of direct glazing are summarized in the following: repair expense, and consequently high insurance rating;
The technologic preliminary step used for direct glazing was the conventional glazing technique, the so-called conventional glazing. In this process, the pane to be built into the body is first framed with a sealing strip and forms in this way the pane module, that is, the structural module that is built in, as a unit. The pane module is then pulled in through a body opening by means of a fitting string placed inside the metal frame of the vehicle body during preassembly.
The following advantages become evident in conventional glazing: in lower repair costs and lower insurance rating.
The disadvantages of this process that finally decided the manufacture for direct glazing were: and body; pieces;
The object of the invention is, therefore, to develop a process for a glazing technique that especially does not have the disadvantages of direct glazing, without however giving up the many cited advantages. Other aspects such as, for example, the use of recyclable raw materials should also be taken into consideration.
The object of the invention is attained in that the flexible structural components and or sealing strips are placed on the pane, in that a thermally activated weld strip is placed between the flexible structural component and or sealing strip and the pane, and in that the weld strip is thermally activated before mounting the panes onto the vehicles or vehicle parts.
It is not important if the pane geometry or the geometry of the installation area is flat or curved or if the installation area takes up the weld strip completely or partially since this places only different demands with respect to the sealing parts to be brought into contact with the weld strip and the kind of heat supply for the thermal activation of the weld strip.
It is also unimportant according to which physical effect principle (high frequency, ultrasound, hot air, heating plates . . . ) is used in activating heat to the weld strip. It is, however, economically sound and it reduces costs considerably if the heat for the thermal activation of the weld strip is taken from the residual heat remaining in the pane after its manufacture.
All elastomers of natural rubber (NR) o
REFERENCES:
patent: 3574024 (1971-04-01), Rose
patent: 4635420 (1987-01-01), Batky
Kientz Paul
Schafer Andreas
Bahta Abraham
Creighton Wray James
Krynski William
Narasimhan Meera P.
Saar-Gummiwerk GmbH
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