Abstract:
Es wird eine beheizbare Scheibe, insbesondere eine Fahrzeugscheibe, vorgestellt mit einer oberen (10) und einer unteren Scheibenkante (9) sowie seitlichen Scheibenkanten, einem transparenten Sichtfeld (3) mit einem zentralen Hauptsichtfeld, einer Schar (12 - 20) von zumindest zum Teil im Sichtfeld angeordneten und zwischen Sammelkontaktleisten (11, 31, 32) unterschiedlicher Polarität verlaufenden Heizdrähten (8), und einem zumindest eine Teilanzahl der Heizdrähte (8) aufweisenden, entlang der unteren Scheibenkante (9) unterhalb des Hauptsichtfeldes angeordneten unteren Heizfeldbereich (24). Die beheizbare Scheibe kennzeichnet sich durch einen zumindest eine Teilanzahl der Heizdrähte (8) aufweisenden, zumindest zum Teil im transparenten Sichtfeld (3) und entlang der oberen Scheibenkante (10) oberhalb des Hauptsichtfeldes angeordneten oberen Heizfeldbereich (23), wobei im oberen Heizfeldbereich (23) die Heizdrähte (8) zueinander ungekreuzt und in ihrer Hauptverlaufsrichtung zumindest auf der überwiegenden Verlaufsstrecke im Wesentlichen parallel zur oberen Scheibenkante (10) verlaufen. Dabei ist zwischen dem oberen (10) und unteren Heizfeldbereich (9) ein das Hauptsichtfeld überdeckender mittlerer Scheibenbereich vorgesehen, wobei der mittlere Scheibenbereich entweder einen mittleren Heizfeldbereich (25) mit einer gegenüber sowohl dem oberen (10) als auch dem unteren Heizfeldbereich (9) geringeren auf die Fläche bezogenen Heizleistungsdichte oder einen Sichtbereich ohne integrierte Widerstandsheizung umfasst. Insbesondere kann eine mit Heizdrähten (8) aufgebaute Ringheizung (5) vorgesehen werden, die das Hauptsichtfeld umgibt.
Abstract:
Transparency having a heatable wiper rest area comprising: a first glass sheet having an outer major surface and an inner major surface; a second glass sheet having an outer major surface and an inner major surface, wherein the inner major surface of the first glass sheet faces the inner major surface of the outer glass sheet; an interlayer material (26) securing the inner major surface of the first glass sheet to the inner major surface of the second glass sheet; an opaque band at an expected wiper rest area; and a wiper rest area heating arrangement (42). The heating arrangement (42) comprises: an electrically conductive member; a plurality of bus bars (46) positioned in electrical contact along the conductive member, wherein the plurality of bus bars (46) divides the conductive member into a plurality of adjacent discrete heatable areas (50); a first lead (56) to electrically interconnect selected ones of the bus bars (46), the first lead (56) extending along an edge of the conductive member; a second lead (61) to electrically interconnect other selected ones of the bus bars (61), the second lead (61) extending along the edge of the conductive member, wherein a portion of the first lead (56) and a portion of the second lead (61) overlay each other; and an insulating member positioned between the portion of the first lead and the portion of the second lead to electrically insulate the first lead from the second lead.
Abstract:
Transparency having a heatable wiper rest area comprising: a first glass sheet having an outer major surface and an inner major surface; a second glass sheet having an outer major surface and an inner major surface, wherein the inner major surface of the first glass sheet faces the inner major surface of the outer glass sheet; an interlayer material (26) securing the inner major surface of the first glass sheet to the inner major surface of the second glass sheet; an opaque band at an expected wiper rest area; and a wiper rest area heating arrangement (42). The heating arrangement (42) comprises: an electrically conductive member; a plurality of bus bars (46) positioned in electrical contact along the conductive member, wherein the plurality of bus bars (46) divides the conductive member into a plurality of adjacent discrete heatable areas (50); a first lead (56) to electrically interconnect selected ones of the bus bars (46), the first lead (56) extending along an edge of the conductive member; a second lead (61) to electrically interconnect other selected ones of the bus bars (61), the second lead (61) extending along the edge of the conductive member, wherein a portion of the first lead (56) and a portion of the second lead (61) overlay each other; and an insulating member positioned between the portion of the first lead and the portion of the second lead to electrically insulate the first lead from the second lead.
Abstract:
A vehicle window assembly includes one or more resistance heating lines for electrically heating a section of the window area corresponding to a window wiper rest area. An opaque obscuration band is formed so as to define one or more elongate, relatively narrow wiper alignment apertures along a portion of the window at the wiper rest area. The aperture(s) defined by the obscuration band are positioned so as to be aligned with at least a portion of a heating line. In this manner, at least a portion of the heating line is visible from the exterior of the vehicle through the outer surface of the window.
Abstract:
A heating arrangement for electrically heating the lower section (32) of an automobile glazing unit (12) is disclosed. An embodiment of the arrangement includes a heating grid pattern (34) employing vertical shorting bars (44) to prevent complete inoperability of individual heating conductors (36). An alternate embodiment of the arrangement includes heating conductors of varying electrical resistance to achieve greater heat generation at desired locations.
Abstract:
An arrangement for heating upper (32) and lower (30) windshield wiper blades parked proximate the lower edge of a windshield (10) utilizes an electric heating grid placed against the inside surface of the windshield, substantially in alignment with the parked wiper blades. The electric heating grid (42,44,46) is comprised of a first wire (42) in alignment with the lower blade (30), an intermediate wire (44) and an upper wire (46) in alignment with the upper blade (32). The wires have opposite ends which are connected to busses that are disposed at the lower edge of the windshield, the busses having leads for connection to power circuitry. The power circuitry includes a climate control system having a switch which is rotatable to a defrost position. When the switch is rotated to the defrost position so that the climate control system defrosts the windshield, current flows through the grid. As long as the switch is in the defrost position, the current continues to flow. The power circuitry also includes a windshield wiper deicing switch which operates independently of the defrost switch. Associated with the windshield wiper deicing switch is a timer which opens the closed deicing switch after a selected interval of time. This arrangement provides an inexpensive reliable system for deicing windshield wiper blades because the wires are disposed on the windshield against the inside surface of the windshield.
Abstract:
A windshield having an upper vision area (118) with a coating and a lower heating area (126) aligned with a wiper blade storage area. The coating is electroconductive. First and second bus bars (140,142) are provided to selectively connect the coating to the terminals of a power source (134) to provide a windshield heating circuit for defogging or defrosting its vision area. One of the bus bars (142) is also connected to a heating element (154,156,158) along a lower area of the windshield that faces a storage area for windshield wipers. The heating element (154,156,158) is selectively connected to a different terminal of the power source (134) from the terminal connected to one of the bus bars to cooperate with one of the bus bars (142) and the power source (134) to provide a storage area heating circuit. The windshield heating circuit and the storage area heating circuit may be operated independently, either separately or simultaneously, from a common electric power source.
Abstract:
A terminal connector for a heated window, a heated window provided with a plurality of terminal connectors constructed and arranged for simultaneous engagement to corresponding terminals of a multiple terminal housing and a method of assembling a heated window provided with at least two of said terminal connectors in a terminal connection area along a side edge of said heated window.
Abstract:
A terminal connector for a heated window, a heated window provided with a plurality of terminal connectors constructed and arranged for simultaneous engagement to corresponding terminals of a multiple terminal housing and a method of assembling a heated window provided with at least two of said terminal connectors in a terminal connection area along a side edge of said heated window.