Thin-walled brake diaphragm

Details Thin-walled brake diaphragm Thin-walled brake diaphragm

F - Mech Eng,Light,Heat,Weapons

01

B

F01B 19/00 (2006.01) B60T 17/08 (2006.01) F16J 3/02 (2006.01)

Patent

CA 2377990

A fabric reinforced, resilient brake diaphragm (37) for use in a fluid pressure operated braking system (11) is provided. The diaphragm (37) comprises an annular outer flange (39) for engaging the housing of the braking system, a bottom planar wall (43) having an interior surface for engaging the piston (16) of the braking system, an annular sidewall (41) connecting the outer flange (39) and the bottom planar wall (43) and a plurality of spaced planar tabs (45) disposed on the interior surface of the bottom planar wall extending radially from the intersection between the annular sidewall and the bottom planar wall toward the center of the interior surface. The diaphragm (37) has a thin-walled construction with the bottom planar wall (43) and annular sidewall (41) having a thickness of between approximately .06 inches and approximately .10 inches.

Cette invention concerne une membrane de frein (37) souple, renforcée par du tissu, qui s'utilise dans un circuit de freinage (11) commandé par fluide sous pression. La membrane (37) comprend une collerette extérieure (39) s'engageant dans le carter de frein, une cloison plate inférieure (43) dont la surface intérieure s'engage sur le piston (16) du circuit de freinage, une cloison latérale annulaire (41) reliant la collerette extérieure (39) et la cloison plate inférieure (43) et une pluralité de pattes plates espacées (45) disposées sur la surface intérieure de la cloison plate intérieure, qui se déploient radialement à partir de l'intersection de la paroi annulaire et de la cloison plate inférieure vers le centre de la surface intérieure. La membrane (37) comporte des parois de faible épaisseur, de 0.06 pouce à 0.10 pouce environ pour la cloison plate inférieure (43) et pour la paroi annulaire latérale (41).

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