Patent ID: 6857626

Claim:
A spring element comprising: a first part ( 2 ) having a central cylindrical cavity ( 4 ) with said first part ( 2 ) acting as an additional spring; a second part ( 3 ) extending directly from said first part ( 2 ) transverse to said central cylindrical cavity ( 4 ) of said first part ( 2 ) to form an integral one-piece spring element with said second part ( 3 ) acting as a spring pad and said first ( 2 ) and second ( 3 ) parts being formed of a common material; and an insert ( 1 ) at least partially encapsulated by both of said first ( 2 ) and second ( 3 ) parts with said insert ( 1 ) formed of a compact material having a rigidity that is higher than said common material of said first ( 2 ) and second ( 3 ) parts.