초록 ▼

The brake piston return mechanism (10) comprises a housing (22) which includes housing part (50) that forms with the housing a chamber (59) and an axially extending groove (55). Disposed within the axially extending groove (55) and forming a movable portion (58) of the chamber (59) is an annular act

The brake piston return mechanism (10) comprises a housing (22) which includes housing part (50) that forms with the housing a chamber (59) and an axially extending groove (55). Disposed within the axially extending groove (55) and forming a movable portion (58) of the chamber (59) is an annular actuation piston (70). The actuation piston (70) includes a pair of seals (74) to prevent leakage. Within the housing part (50) is a bore (40) enclosing brake tube (80) that includes an interior radially extending flange (84) and an exterior radially extending flange (82). The exterior radially extending flange (82) is engaged by the actuation piston (70). Located within the brake tube (80) is an adjuster mechanism (90). After the brake tube (80) has been displaced by the actuation piston (70) and braking has ceased, the brake tube (80) is returned to a running clearance (A) by way of the adjuster mechanism (90 ).

대표청구항 ▼

A brake piston return mechanism assembly, comprising a housing having therein a bore, a brake tube disposed slideably within the bore and comprising an exterior radially extending flange and an interior radially extending flange, an axially extending groove disposed radially spaced apart from the bo

A brake piston return mechanism assembly, comprising a housing having therein a bore, a brake tube disposed slideably within the bore and comprising an exterior radially extending flange and an interior radially extending flange, an axially extending groove disposed radially spaced apart from the bore and communicating with an end of the housing, an annular and axially extending actuation piston disposed within said axially extending groove and extending axially outwardly therefrom into engagement with the exterior radially extending flange of the brake tube, the actuation piston disposed coaxially about the brake tube, and resilient means extending between said interior radially extending flange and an adjuster mechanism located within said brake tube, the actuation piston diposed separate from and coaxially about the adjuster mechanism so that the actuation piston displaces the brake tube which engages and actuates the adjuster mechanism.