Mobile crane with a luffing main boom and with an additional boom system
AssigneeTadano Demag GmbH
InventorChristian Moritz Urban
Life of this patent
Estimating the term…
Abstract
A vehicle crane having a luffable main jib and an additional jib system arranged on a free end section of the main jib and comprising a first additional jib part and a second additional jib part. To further reduce the weight of the additional jib system and the vehicle crane fitted therewith, and to permit an overall more economical mode of production, the first additional jib part has a rectangular cross-section having four longitudinal chords connected together via transverse struts or/and diagonal struts and the second additional jib part has a triangular cross-section having three longitudinal chords connected together via transverse struts, wherein the two additional jib parts are coupled, or can be coupled, together via a cross-section change adapter.
Claims20
A vehicle crane comprising:
- a luffable main jib and an additional jib system arranged on a free end section of the main jib and comprising a first additional jib part and a second additional jib part;
- wherein the first additional jib part has a rectangular cross-section having four longitudinal chords connected together via transverse struts and/or diagonal struts, and wherein the second additional jib part has a triangular cross-section having three longitudinal chords connected together via transverse struts, and wherein the two additional jib parts are configured to be coupled together via a cross-section change adapter.
A vehicle crane comprising:
- a luffable main jib and an additional jib system arranged on a free end section of the main jib and comprising a first additional jib part and a second additional jib part, wherein the first additional jib part is a main jib extension, and wherein the second additional jib part is an auxiliary jib;
- wherein the first additional jib part has a rectangular cross-section having four longitudinal chords connected together via transverse struts and/or diagonal struts, and wherein the second additional jib part has a triangular cross-section having three longitudinal chords connected together via transverse struts, and wherein the two additional jib parts are configured to be coupled together via a cross-section change adapter.
Dependencies are inferred from the claim text.