Spring devices – Resilient shock or vibration absorber – Including energy absorbing means or feature
Patent
1986-03-11
1987-08-25
Halvosa, George E. A.
Spring devices
Resilient shock or vibration absorber
Including energy absorbing means or feature
248562, 267140, 2671411, F16F 136
Patent
active
046887768
ABSTRACT:
A suspension device for a mobile self-lift drilling platform, comprising a water-tight chamber deformable under the effect of the load supported by the legs of the platform, this chamber being intended to be filled with a pressurized liquid. The deformability of the chamber is provided by its side wall which is formed by a tubular elastomeric element, with a substantially vertical axis, which element is secured to an inner and an outer tubular coaxial metal guide frames for translationally and rotationally guiding its axial, lateral and angular deformations under the effect of the load as well as of possible accidental shocks. A laminated elastomer structure formed by a stack of elastomer layers alternating with metal plates, to which they are adhered, is housed inside the deformable water-tight chamber and ends with an upper metal plate comprising ribs, more particularly in the form of concentric rings, which are provided with orifices allowing communication between a volume of the chamber situated inside these rings and a volume of the same chamber situated outside thereof.
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Korbuly Gergely
Lecour Pierre
Halvosa George E. A.
Hutchinson S.A.
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