Static structures (e.g. – buildings) – Framing to receive door – doorjamb – or window sash
Utility Patent
1999-04-23
2001-01-02
Kent, Christopher T. (Department: 3635)
Static structures (e.g., buildings)
Framing to receive door, doorjamb, or window sash
C052S204500, C052S209000, C052S204700, C052S302700
Utility Patent
active
06167662
ABSTRACT:
BACKGROUND OF THE INVENTION
The invention concerns a method of assembling plastic window or door frames in which a frame section is adhered to the glass by means of an adhesive, and the frame sections and the edge of the glass are assembled within a groove for the glass. The frame sections form at least one intermediate space for the adhesive between the glass and the frame section or sections to be adhered, and the frame sections are attached as a frame at least partially surrounding the glass in the direction of its peripheral edge, before the connection between the frame sections sets. The invention also concerns a plastic frame section, especially for use in the above mentioned method with a groove for the glass to hold the edge of a pane of glass, where between the frame section and the pane of glass there is at least one intermediate space for adhesive to adhere the frame section to the pane of glass. Finally, the invention concerns a window or door frame, which is produced especially by the method described at the beginning, with a frame of sections at least partially surrounding a pane of glass on its edge in the peripheral direction; the frame sections have a groove for the glass into which the edge of the glass fits, and at least one of the sections is adhered to the glass, and there is at least one intermediate space with adhesive between the frame section in question and the glass.
A generic method is known from German Patent A-33 18 684 in which generic frame sections made of plastic that have been cut, mitred and provided with a groove for holding the glass are heated in the area where they are mitred and to be bonded until thoroughly plasticized, then set on a pane of insulating glass by means of a clamping device and assembled under pressure into a frame around the pane of insulating glass. After the weld connection between the frame sections has set, i.e., after the areas near the weld seams have cooled, the structural unit made up of the frame and the pane of insulating glass is taken out of the clamping device. In another step, a sealant is then applied in the intermediate space formed on both sides of the glass between the glass and the frame sections. The sealant is used, inter alia, to connect the frame sections and the frame formed by them and the pane of insulating glass into a bonded unit. Another previously known method of the type described at the beginning is altered in terms of the method discussed in German Patent Publication A-33 18 684 in that the sealant for adhering the frame sections to the glass of the window or door frame in question is applied in the groove for the glass on the frame sections in a step before the frame sections are put on the glass.
The goal of this invention, in terms of method, is to provide an optimized method, especially in terms of clock time, for assembling window or door frames. The problem of the invention, in terms of a device, is based on creating a frame section, especially for use in the method in the invention and especially on window or door frames produced by that method.
SUMMARY OF THE INVENTION
The method related problem is solved by the invention by a process of the type described at the beginning, in which, while the connection between the frame sections sets, adhesive is placed in at least one intermediate space between the glass and the frame section or sections to be adhered to it, and at least partially sets. In the sense of the invention, the connection between the frame parts and the frame of the glass is produced at the same time as the adhesive connection between the frame sections or frame and the glass. Performing the two known steps in parallel produces a relatively short clock time for assembly of the window or door frames in question. Compared to a variation of the method with the adhesive applied before assembly of the frame sections, the procedure in the invention is characterized, for one thing, by the fact that, at the time when the adhesive is applied, there is an intermediate space for it and consequently the exact amount of adhesive needed to produce an effective adhesive connection can be determined precisely. Excess adhesive pressed out of the intermediate spaces when the frame sections and the glass are put together is consequently avoided, as is too small an amount of adhesive insufficient to produce a permanent connection between the frame sections and the glass. For another thing, the method of the present invention prevents adhesive from being applied to the frame section in question, but then, for example, due to operational problems in the process, the latter cannot be applied before the adhesive bonds to the glass. As a result, adhesive bonded to the frame section can be removed from it again before the frame section can be reused.
The arrangement of the adhesion points is critical to the effectiveness and permanence of the adhesive connection between the frame section or sections and the glass, and, in the interests of the economy of the process, value is placed on achieving an effective, permanent adhesive connection with the smallest possible amount of adhesive.
In this sense, one advantageous embodiment of the method in the invention provides that at least one intermediate space for adhesive is made, which extends the area for mounting of the glass in the frame section in question and that adhesive is applied around this area in at least one intermediate space, and/or that at least one intermediate space extending in the longitudinal direction of the frame section in question is made to hold the adhesive, and adhesive is applied to several points offset from one another in the longitudinal direction of the frame section in the intermediate space or spaces, and/or that at least one intermediate space extending in the longitudinal direction of the frame section in question to hold the adhesive is formed on both sides of the glass in relation to the plane of the glass, and adhesive is applied to points offset from one another in the longitudinal direction of the frame section and alternately lying on one side of the glass or the other in the intermediate space or spaces, and/or that at least one intermediate space to hold the adhesive is made on both sides of the glass, and adhesive is applied to points arranged in the crosswise direction of the frame section in question running parallel to the plane of the glass and on both sides of the glass in the intermediate space or spaces. When adhesive is applied at several points, the clock time is relatively short if adhesive is applied to all or only some of the adhesive points while the connection between the frame sections is setting. For example, in the case of adhesive points offset from one another in the crosswise direction of a frame section running parallel to the plane of the glass, adhesive can be applied to the points underneath while the connection between the frame sections is setting, and application of adhesive to the points higher up follows production of the connection between the frame sections.
The invention offers several ways of applying the adhesive at the optimum point of adhesion. One variation of the method is preferred, in which at least one intermediate space for the adhesive is connected to the outside of the frame by at least one adhesive intake channel opening into the intermediate space and going through the frame, before adhesive is placed in the intermediate space in question through the intake channel or channels. In another preferred embodiment of the method in the invention, the adhesive intake channel or channels are bored for the sake of simplicity.
To prevent anything from affecting the appearance of the window or door frames, in the case of another variation of the method in the invention, the adhesive intake channel or channels is made to open into an outer surface of the frame at some distance from the visible surface or surfaces of the frame, if necessary, in its peripheral outer edge surface area.
The adhesive is put into the intermediate space or spaces for adhesive through the type o
Kent Christopher T.
Pepe & Hazard LLP
Roto Frank AG
Thissell Jennifer I.
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