Patent ID: 6783121
Filing Date: 2004-08-31
Classification: F16F

Abstract:
A rolling-lobe spring comprising:a first connecting part; a second connecting part; a sleeve-like rolling-lobe flexible member arranged between said parts; said flexible member being made of elastomeric material and having a reinforcement layer contained therein; said flexible member having first and second end portions attached to said first and second connecting parts, respectively, and said end portions being devoid of beads and cores; a clamp unit including one of said connecting parts and a clamp ring; said one connecting part having a drawn-in peripherally-extending attachment surface and at least one peripherally-extending raised portion disposed on said attachment surface; said clamp ring having a peripherally-extending recess formed therein and said clamp ring being disposed relative to said attachment surface so that said attachment surface and said clamp ring conjointly define an interface clamping region with said recess facing toward said attachment surface; one of said end portions of said flexible member being disposed in said interface clamping region and being clamped pressure tight between said clamp ring and said attachment surface so as to neither squeeze nor expand said flexible member whereby a separation of paid elastomeric material from said reinforcement layer is precluded and, at least one of said raised portion and said recess having a rectangular cross section so as to cause said reinforcement layer to be reorientated when said clamp ring is clamped tightly against said attachment surface with said one end portion being clamped form tightly therebetween.