TH170742B - Crane beams for cranes - Google Patents

Abstract

The beam of the crane (1) for the crane (3), where the beam of the crane (1) includes a hollow (4) with external walls (6), covering the cavity (5) and extending lengthwise. And the external wall (6) of the beam of the crane (1) when looking at the cross-section across the beam of the crane (1) has a bulging shape outward. At least in some areas to reduce aerodynamic resistance, where the external walls (6) when viewing the cross-section Cut through the beams of the crane (1), there are two (10, 11) segments facing each other with a bulging shape outward. The outside, which is joined by two straight wall sections (12) of the external walls (6), which these straight wall sections face. And the beams of Panjans (1) have at least one surface for moving (13) A surface for one or more wheels of the casters (15) of the lifting apparatus (3), where segments (10, 11) are facing each other with a bulging shape outward. Execution position Of the beam of the crane pointing upward and downward And the straight wall (12) limits the beam of the crane (1) on the side

Claims (1)

1. The beam of the crane (1) for the crane (3) where the beam of the crane (1) has a hollow structure (4) with an external wall (6) covering the cavity (5) and extending lengthwise. And the external wall (6) of the beam of the crane (1) when looking at the cross-section across the beam of the crane (1) has a bulging shape outward as Little in some areas for reducing aerodynamic resistance, where the external walls (6) when viewing the cross-section Cut through the beams of the crane (1), there are two opposite sections (10,11) with a protruding shape. Outside which was connected between