An upholstery layer of a vehicle interior panel includes an airbag tear seam formed as a plurality of blind cuts arranged along a tear seam pattern. Each one of the blind cuts is formed by laser material removal at a plurality of locations along the pattern. Laser energy is delivered to the upholstery layer in a series of ultra-short pulses to form the blind cuts, which are formed in the upholstery layer while separate from a substrate of the panel. This technique is particularly useful with leather upholstery materials, in which non-visible airbag tear seams have been proven difficult to form.
VEHICLE INTERIOR PANEL WITH LASER-FORMED TEAR SEAM
2019-03-28
Patent
Electronic Resource
English
IPC: | C14B Mechanische Behandlung oder Bearbeitung von Häuten, Fellen oder Leder allgemein , MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES, OR LEATHER IN GENERAL / B23K Löten , SOLDERING OR UNSOLDERING / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
Vehicle interior panel with airbag tear seam formed by mechanical piercing
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|European Patent Office | 2019
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