Profile shape for a crane boom

Details Profile shape for a crane boom Profile shape for a crane boom

B - Operations, Transporting

66

C

B66C 23/687 (2006.01)

Patent

CA 2697303

The invention relates to a crane jib for a crane, having a longitudinal axis and an imaginary contour line that extends in a transversal plane relative to an axis of symmetry (s) in an at least approximately mirror-symmetric manner, the contour line having an at least approximately arcuate section (k1) between a center (M) that is equally interspaced from the first and second point of intersection (S1, S2) on the axis of symmetry (s) and the first point of intersection (S1), a first straight section being tangentially contiguous thereto in the direction of the second point of intersection (S2), the imaginary extension of which first straight section in the direction of the second point of intersection (S2) intersects the axis of symmetry (s) and forms an acute angle therewith. The invention is characterized in that a second straight section (g2) is tangentially contiguous to the approximately arcuate section (k1) in the direction of the first point of intersection (S1) and extends up to the axis of symmetry (s) and forms an angle (&ggr;) of less than 90 degree with said axis of symmetry in the first point of intersection (S1) in the interior of the surface enclosed by the contour line.

La présente invention concerne un bras destiné à une grue, présentant un axe longitudinal et une ligne de contour imaginaire qui s'étend dans un plan transversal de façon au moins approximativement symétrique par rapport à un axe de symétrie (s). Selon l'invention, la ligne de contour présente entre un point médian (M) disposé sur l'axe de symétrie (s) à équidistance par rapport au premier et au second point d'intersection (S1, S2) et le premier point d'intersection (S1), une section (k1) au moins approximativement en arc de cercle à laquelle se raccorde tangentiellement en direction du second point d'intersection (S2) une première section linaire dont le prolongement imaginaire en direction du second point d'intersection (S2) coupe l'axe de symétrie (s) et forme avec celui-ci un angle aigu; et une seconde section linéaire (g2) se raccorde tangentiellement à la section (k1) approximativement en arc de cercle en direction du premier point d'intersection (S1), ladite seconde section linéaire s'étendant jusqu'à l'axe de symétrie (s) et formant avec celui-ci à l'intérieur de la surface renfermée par la ligne de contour, au niveau du premier point d'intersection (S1), un angle (?) inférieur à 90°.

Affiliated with

Also associated with

Rating

Profile shape for a crane boom does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Profile shape for a crane boom, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Profile shape for a crane boom will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1678750