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US 11,236,798 B2Granted
Guide/damping unit and piston housing unit
AssigneeSuspa GmbH
InventorsMichael Bauer, Michael Weder
Life of this patent
Estimating the term…
Abstract
A piston housing unit includes a housing with a longitudinal axis, a piston rod that is displaceable, in particular along the longitudinal axis and/or around the longitudinal axis, a guide/damping unit for guiding and damping the displacement of the piston rod.
Claims26
A piston housing unit, comprising:
- a tubular housing having a longitudinal axis and a cylindrical outer contour which is constant along the longitudinal axis;
- a displaceable piston rod;
- and
- a guide/damping unit comprising:
- a guide element comprising two half-shells, wherein each of the two half-shells has a cross section in a plane oriented perpendicular to the longitudinal axis, the cross section being half-ring shaped;
- and
- at least one damping element, the at least one damping element having one of a damping ring and at least one damping strip, wherein the one of the damping ring and the at least one damping strip is made of an elastic damping material, the guide/damping unit being fitted in the tubular housing, the guide/damping unit comprising a stop collar connected to the guide element, the stop collar comprising a collar portion extending in a radial direction relative to a longitudinal axis of the guide/damping unit, the housing comprising an axial end surface facing in a direction parallel to the longitudinal axis of the housing, the collar portion being in direct contact with the axial end surface, the guide/damping unit comprising a sleeve portion having an outer diameter which corresponds to an inner diameter of the tubular housing, the guide/damping unit comprising a facing side arranged within the tubular housing, the facing side being axially unsupported within the tubular housing.
4 more elements
A piston housing unit, comprising:
- a tubular housing having a longitudinal axis;
- a displaceable piston rod;
- a guide/damping unit comprising a guide element and at least one damping element, the guide element comprising two half-shells, the damping element having one of a damping ring and at least one damping strip, the one of the damping ring and the at least one damping strip being made of an elastic damping material, wherein a piston is fitted on the piston rod, wherein the piston is a collar-out protection such that the piston rod is prevented from being pulled out of the housing accidentally, the piston comprising two annular discs connected to the piston rod, wherein an additional friction element is arranged between the annular discs, the additional friction element being configured to rub against an inside of the housing, the guide/damping unit comprising a sleeve portion having an outer diameter which corresponds to an inner diameter of the tubular housing, the guide/damping unit comprising a facing side arranged within the tubular housing, the facing side being axially unsupported within the tubular housing.
Dependencies are inferred from the claim text.