Land vehicles: bodies and tops – Tops – Roof structure
Patent
1997-10-22
2000-05-02
Pedder, Dennis H.
Land vehicles: bodies and tops
Tops
Roof structure
29621603, 29622001, 296221, 296223, 200 6169, B60J 700
Patent
active
060563524
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND AND SUMMARY OF THE INVENTION
This invention relates generally to sunroof assemblies for automotive vehicles and specifically to a dual sunroof assembly and a control system for operating same.
It is common knowledge to provide a single sunroof within a stationary roof of an automotive vehicle. These traditional sunroofs typically employ a transparent glass pane slidable from a covering position, somewhat flush to the roof, to a retracted position, which allows sunlight and ventilation access through an opening within the roof. Another traditional sunroof construction provides a transparent glass pane which is tiltable from a closed position to a pivoted venting position. This allows air from within the vehicle to pass through an opening created between the vented pane and the roof. A single sliding interior sunshade has also been employed with various of these sunroofs. Such sunshades are typically horizontally oriented and slidably movable to expose or cover a sunroof.
It is also known by those in the automotive industry to provide a pivotable wind deflector in front of a sliding spoiler-type sunroof. Such a construction is disclosed within U.S. Pat. No. 4,659,140 entitled "Vehicle Roof" which issued to Fuerst et al. on Apr. 21, 1987, and U.S. Pat. No. 5,069,501 entitled "Spoiler Control Mechanism" which issued to Baldwin et al. on Dec. 3, 1991, the disclosures of which are incorporated by reference herewithin. However, wind deflectors of this type merely pivot and do not slide to a retracted position. Thus, such a wind deflector limits the roof opening that would otherwise be disposed above the front seat occupants.
U.S. Pat. No. 4,786,102 entitled "Sun Roof Apparatus of Vehicle Roof" which issued to Sakamoto et al. on Nov. 22, 1988, attempts to further increase the effective roof opening, especially above the front seat, by employing a pair of movable covering panels. This device provides a rear cover panel which is detachably removable such that a front cover panel can be rearwardly slid. Provisions are also made for manually mounting the removed rear cover panel upon the retracted front cover panel. However, this system appears ungainly to operate especially while driving the automobile.
U.S. Pat. No. 5,197,779 entitled "Power Sliding Sunroof" which issued to Mizuno et al. on Mar. 30, 1993, discloses a pair of slidable sunroofs mounted in tracks on top of a stationary roof. The disclosure of this patent is incorporated by reference herewithin. However, this non-flush roof system is aesthetically prominent, is prone to excessive wind noise during vehicle driving and will cause excessive aerodynamic drag in all operating positions.
Various manual and motorized driving mechanisms have been used in combination with the aforementioned sunroofs. For motorized actuation, various electrical circuits have been employed to control operation of the operating mechanisms. One such circuit and switch for energizing a motorized drive is disclosed within U.S. Pat. No. 4,556,835 entitled "Operating Mechanism for Movable Parts, Especially for Sliding Roofs and Sliding/Lifting Roofs" which issued to Vogel et al. on Dec. 3, 1985, and is incorporated by reference herewithin. Another such circuit is discussed within UK Patent Application GB 2077461 entitled "Operating Mechanism for Tilting and Sliding Roof Panels." These circuits and switches, however, do not provide a means for controlling a pair of movable panes, a pair of movable sunshades, or any combination thereof.
In accordance with the present invention, the preferred embodiment of a sunroof assembly of an automotive vehicle employs dual sunroof panes, a pair of movable sunshades and a control system for operating the function thereof. In one aspect of the present invention, a sunroof assembly provides a substantially transparent front pane which is slidable from a covering position to a retracted position and a substantially transparent rear pane movable from a covering position to an open position. At least one of the panes is retractable below a stat
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Bendixen Oluf H.
Caye Mark A.
Ewing Kip A.
Goins John D.
Helms James M.
ASC Incorporated
Pedder Dennis H.
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