Movable or removable closures – Stored in housing – Reciprocates vertically in and out of housing
Reexamination Certificate
1999-09-20
2001-05-01
Stodola, Daniel P. (Department: 3634)
Movable or removable closures
Stored in housing
Reciprocates vertically in and out of housing
C049S352000
Reexamination Certificate
active
06223470
ABSTRACT:
FIELD OF THE INVENTION
The present invention is directed to a motor operated vehicle window construction and, more particularly, to a dropglass sliding window suitable for use in a motor vehicle.
BACKGROUND OF THE INVENTION
Motor vehicle window assemblies typically have one or more sliding panes, that is, panes which slide from a closed position to a full open position, and which may be either manually operated or operated by an electric motor. Such window assemblies are used, for example, as rear slider windows for pickup truck cabs to increase airflow into the motor vehicle. Typically such rear slider windows have a circumferential (that is, outer peripheral) frame in which the sliding pane is mounted along with one or more fixed panes. The frame may be structural or semi-structural in that it integrates the sliding pane and one or more fixed panes as a self-contained preassembled module suitable for shipping and handling prior to installation into a motor vehicle.
Sliding window assemblies are increasingly popular, particularly when used for backlights in pickup trucks. A power window assembly for a vehicle having a sliding pane is shown in U.S. Pat. No. 5,724,769 to Cripe et al. Cripe et al is a robust design for a pull-pull power sliding window assembly having left and right fixed panes and a horizontally sliding center pane sliding between upper and lower run channels. A drive motor, drive drum and drive cable pull the sliding pane back and forth in a manner similar to conventional cable drum window regulators. Cable directional blocks route drive cable from below the frame to a lower horizontal peripheral edge of the sliding pane. Such a design advantageously routes the cables so as to avoid excessive drag associated with pulling the sliding pane up against the upper run channel or down against the lower run channel.
While such a design is excellent for reducing friction and thereby minimizing wear and tear, it has been found increasingly desirable to maximize a central air opening created when the sliding pane moves to the full open position. The size of the opening created in a horizontally sliding window module such as that disclosed in Cripe et al is necessarily limited by not only the size of the sliding pane but also by the requirement that the sliding pane slide back and forth within the frame of the module. Thus, the length of the run channels, the size of the fixed panes, and the overall size of the modular window assembley all act to limit the maximum available size of the air opening when the sliding pane moves to the full open position. It would be desirable to provide a sliding window assembly where the air opening produced when the sliding pane moves to the full open position is increased beyond that available with conventional horizontally sliding panes positioned in a sliding window module.
In view of the foregoing, it is an object of the present invention to provide a sliding window assembly having a central opening can be closed by a sliding pane where the central opening is significantly larger than central openings in traditional horizontally sliding window assemblies.
It is an additional object of at least certain preferred embodiments of the present invention to provide a sliding window assembly for a motor vehicle having attractive exterior styling while preserving structural integrity of the motor vehicle. It is another related object of the present invention to provide a sliding window assembly that is highly reliable in operation. Additional objects and optional features of the invention will be apparent form the following disclosure and detailed discussion of preferred embodiments.
SUMMARY OF THE INVENTION
In accordance with a first aspect, there is provided a sliding window assembly having a first fixed pane and a second fixed pane, left and right division bars with each division bar having a run channel, and an encapsulation frame bonding together the first fixed pane, the second fixed pane, and the left and right division bars. The encapsulation frame has a circumference which extends around the fixed panes, and the circumference cooperates with the division bars to define a central opening. A sliding pane slides within the run channels between a closed position where the sliding pane closes the central opening and a full open position. The sliding pane slides at least partially outside the circumference of the frame when in the full open position, and a drive member such as a cable-drum window regulator attached to the sliding pane drives the sliding pane between the full open and closed positions. Preferably the division bars also extend beyond the circumference of the frame to provide guidance to the sliding pane when moving to and from the full open position.
In accordance with another aspect, a modular sliding window assembly is provided having four outside seals positioned around the central opening to prevent water, dirt and other elements from entering around the sliding pane when the sliding pane is in the closed position. First and second outside seals are attached to the division bars and positioned between the corresponding division bar and the sliding pane. Third and fourth outside seals are positioned between the sliding pane and the top and bottom segments of the frame, respectively.
In accordance with another aspect, a beltline support for enhancing structural rigidity of the window module connects the left and right division bars. The encapsulation frame at least partially encapsulates the division bars, and preferably entirely encapsulates the beltline support. The sliding pane is slidable from the closed position to an open position below the bottom segment of the frame.
REFERENCES:
patent: 2714035 (1955-07-01), Limberg et al.
patent: 2747921 (1956-05-01), Hooverson et al.
patent: 3770312 (1973-11-01), Shadburn
patent: 4119341 (1978-10-01), Cook
patent: 4170847 (1979-10-01), Pickles
patent: 4502248 (1985-03-01), Thomas, Jr. et al.
patent: 4543747 (1985-10-01), Kaltz et al.
patent: 4620746 (1986-11-01), Alexander
patent: 4671013 (1987-06-01), Friese et al.
patent: 4793099 (1988-12-01), Friese et al.
patent: 4874201 (1989-10-01), Scaglietti
patent: 5363537 (1994-11-01), Schneider et al.
patent: 5442880 (1995-08-01), Gipson
patent: 5473840 (1995-12-01), Gillen et al.
patent: 5542214 (1996-08-01), Buening
patent: 5623785 (1997-04-01), Mariel
patent: 5657580 (1997-08-01), Kobrehel
patent: 5724769 (1998-03-01), Cripe et al.
patent: 5775029 (1998-07-01), Buening
patent: 5784832 (1998-07-01), LeeVan
patent: 5799449 (1998-09-01), Lyons et al.
patent: 5822922 (1998-10-01), Grumm et al.
patent: 5832667 (1998-11-01), Buening et al.
patent: 5836110 (1998-11-01), Buening
patent: 5839231 (1998-11-01), Gebhart et al.
patent: 5864987 (1999-02-01), Mariel et al.
patent: 5996284 (1999-12-01), Freimark et al.
patent: 6014840 (2000-01-01), Ray et al.
Briggs Travis H.
Denison James J.
Dufour William T.
Mason Ricky J.
Millard Kevin R.
Banner & Witcoff Ltd
Cohen Curtis A.
Dura Global Technologies Inc.
McDermott Peter D.
Stodola Daniel P.
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