Patent ID: 7878349

Claim:
A crane boom for a crane, comprising: a longitudinal axis; and a notional contour line extending within a transverse plane relative to an axis of symmetry such that the contour line is at least approximately mirror-symmetrical with respect to the axis of symmetry, the contour line intersecting the axis of symmetry at a first intersection point and a second intersection point so as to define a center point located on the axis of symmetry equidistant between the first intersection point and the second intersection point; wherein the contour line has: an at least approximately arcuate portion between the center point and the first intersection point; a first straight portion tangentially adjoining the arcuate portion in a direction of the second intersection point, the first straight portion being oriented such that a notional extension of the first straight portion intersects the axis of symmetry with an acute angle therebetween; and a second straight portion tangentially adjoining the arcuate portion in a direction of the first intersection point, the second straight portion being oriented so as to intersect the axis of symmetry at the first intersection point with an angle of less than 90 degrees therebetween.