Easy fit diaphragm

F - Mech Eng,Light,Heat,Weapons – 01 – B

Patent

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Details

F01B 19/00 (2006.01) F01B 19/02 (2006.01) F01B 29/00 (2006.01) F16J 3/00 (2006.01) F16J 3/02 (2006.01)

Patent

CA 2333012

The present invention provides a brake actuator assembly including a housing (30) having a generally radial annular flange portion (41) and a cover (32) having a generally radial annular flange portion generally co-axially aligned with the generally radial annular flange portion of the housing (30). A cup- shaped flexible diaphragm (40) having an outer radial rim portion is disposed between the generally radial annular flange portions of the housing (30) and the cover (32). A retaining element generally surrounds and compresses the generally annular flange portions of the housing (30) and the cover (32) against the rim portion (41) of the flexible diaphragm (40). The rim portion of the diaphragm includes a wedge-shaped edge portion (42) and co-axially aligned flats on opposite sides of the rim portion (41) adjacent to the wedge- shaped edge portion (42) aligning the flange portions of the housing (30) and the cover (32). In another embodiment, a flexible brake diaphragm includes a cup-shaped flexible diaphragm having an outer radial annular rim portion. The rim portion of the diaphragm includes a wedge-shaped edge portion and co- axially aligned flats (43) on opposite sides of the rim portion adjacent to the wedge-shaped edge portion (42).

La présente invention concerne un ensemble actionneur de frein comprenant un logement (30) présentant une partie de rebord annulaire radial (41) ainsi qu'un couvercle (32) comportant une partie de rebord annulaire radial alignée d'une manière générale coaxialement avec la partie de rebord annulaire radial du logement (30). Une membrane souple cupuliforme (40) ayant une partie de rebord radiale extérieure est disposée entre les parties de rebord annulaire radiales du logement (30) et du couvercle (32). Un élément de retenue entoure et comprime d'une manière générale les parties de rebord annulaire du logement (30) et le couvercle (32) contre la partie de rebord (41) de la membrane souple (40). La partie de rebord de la membrane comprend une partie de bordure cunéiforme (42) et des méplats alignés coaxialement sur les faces opposées de la partie de rebord (41) adjacents à la partie de bord cunéiforme (42) alignant les parties de rebord du logement (30) et du couvercle (32). Dans un autre mode de réalisation, une membrane de frein souple comprend une membrane souple cupuliforme présentant une partie de rebord annulaire radiale extérieure. La partie de rebord de la membrane comprend une partie de bord cunéiforme et des méplats (43) alignés coaxialement sur les faces opposées de la partie de rebord adjacents à la partie cunéiforme (42).

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