Patent ID: 7131548

Claim:
A folding pinnacle pivoting device for a mobile crane, comprising: a joint that pivotally connects an end of a folding pinnacle to an end of a boom of the mobile crane, the joint being provided where a tensile load is applied between the folding pinnacle and the boom; and a mechanically adjustable telescoping means that can be adjusted to a plurality of lengths for adjusting an angle of the folding pinnacle with respect to the boom, the mechanically adjustable telescoping means being provided between the end of the folding pinnacle and the end of the boom where a pressure load is applied between the folding pinnacle and the boom, the mechanically adjustable telescoping means being adapted to limit a length thereof to an adjusted length when the pressure load is being applied between the folding pinnacle and the boom and to allow the length thereof to extend freely when no pressure load is being applied.