ARBEITSZYLINDER MIT EINER KOLBENSTANGE AUS VERBUNDMATERIAL.

摘要

Fluid actuator (1) includes a piston rod (3) comprised of a wound filamentary composite structure to provide an extremely light weight, relatively low cost, envelope efficient design. Attached to the piston rod (3) are one or more non-integral piston heads (14, 16) which are preloaded against one or more ramp surfaces (26, 27 and 43) on the exterior of said piston rod. A pair of oppositely facing ramp surfaces (26, 27) may be formed on the piston rod (3) by interspersing filler means (21) between the piston rod fiber layers (20). Another ramp area (43) may be formed by providing an exernal groove (40) in the piston rod (3) which is engaged by longitudinally split support shoes (41) that provide an attachment surface for a detachable piston head (16). An internal ramp (50) may also be provided on the inner diameter of the piston rod (3) adjacent the axial outer end thereof for mating engagement by a conically ramped exterior surface (52) on an internal metal stud (51) used to attach a rod end assembly (5) to the axial outer end of the piston rod. The internal ramp (50) may be formed by radially displacing the layers of piston rod fibers (20) radially inward by interspersing circumferential fiber windings (21) therebetween.