The vehicle brake-specific diaphragm of the invention includes a vessel-form member and a flange portion formed at a peripheral edge of an opening in the vessel-form member, wherein the vessel-form member and the flange portion are each formed of a rubber body comprising silicone rubber and a substrate fabric embedded in the rubber body, the substrate fabric comprising aramid short fibers or polyester fibers, and having a thickness of 0.25 mm or more. Accordingly, the inventive diaphragm does not only have durability during operation in both the high-temperature and the normal-temperature area but also exerts much better durability during operation in the low-temperature area.
DIAPHRAGM FOR VEHICLE BRAKE
DIAPHRAGMA FÜR FAHRZEUGBREMSE
DIAPHRAGME POUR FREIN DE VÉHICULE
15.01.2020
Patent
Elektronische Ressource
Englisch
DIAPHRAGM OF BRAKE BOOSTER FOR VEHICLE AND MANUFACTURING METHOD OF DIAPHRAGM
Europäisches Patentamt | 2022