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US 12,617,177 B2Granted
Automotive glazing with vulnerable road user protection
AssigneeHonda Motor Co., Ltd.
InventorsAmir Oueslati, Brian Timothy O'Hara
Life of this patent
Estimating the term…
Abstract
An optically transparent discontinuous arrangement of ceramic enamel in a daylight opening of an upright automotive glazing to provide a controlled fracture response of the glazing under impact from a vulnerable road user. The discontinuous arrangement of ceramic enamel may be tailored to offer a more consistent fracture response for the glazing, and provide a fracture response of the glazing that meets automotive regulations.
Claims18
An upright automotive glazing comprising:
- an upright glass substrate with a daylight opening;
- a tinted band arranged on the glass substrate and extending around a perimeter of the daylight opening, wherein the tinted band is opaque or translucent;
- and
- a discontinuous arrangement of ceramic enamel arranged in the daylight opening, wherein the discontinuous arrangement of ceramic enamel includes areas of ceramic enamel with voids therebetween;
- wherein the discontinuous arrangement of ceramic enamel controls a fracture response of the upright automotive glazing by weakening the upright automotive glazing such that the upright automotive glazing fractures when subjected to the Headform Test as described in United Nations ECE regulation 43, revision 4, wherein the discontinuous arrangement of ceramic enamel is configured to provide local weakenings at positions where the areas of ceramic enamel are arranged such that the upright automotive glazing begins to break at one of the local weakenings and then spreads throughout the rest of the upright automotive glazing upon impact,
- wherein each of the areas of the ceramic enamel have a CIELAB lightness value of less than 50, and the discontinuous arrangement of ceramic enamel is optically transparent.
3 more elements
A vehicle comprising an upright automotive glazing, the upright automotive glazing including:
- an upright glass substrate with a daylight opening;
- a tinted band arranged on the glass substrate and extending around a perimeter of the daylight opening, wherein the tinted band is opaque or translucent;
- and
- a discontinuous arrangement of ceramic enamel arranged in the daylight opening, wherein the discontinuous arrangement of ceramic enamel includes areas of ceramic enamel with voids therebetween;
- wherein the discontinuous arrangement of ceramic enamel controls a fracture response of the upright automotive glazing by weakening the upright automotive glazing such that the upright automotive glazing fractures when subjected to the Headform Test as described in United Nations ECE regulation 43, revision 4, wherein the discontinuous arrangement of ceramic enamel is configured to provide local weakenings at positions where the areas of ceramic enamel are arranged such that the upright automotive glazing begins to break at one of the local weakenings and then spreads throughout the rest of the upright automotive glazing upon impact,
- wherein each of the areas of the ceramic enamel have a CIELAB lightness value of less than 50, and the discontinuous arrangement is optically transparent.
3 more elements
Dependencies are inferred from the claim text.