Swivel mechanism for load holder from equipment cabin

摘要

During the swivel from the equipment cabin the originally horizontal motion of the holder (10) merges into a downwards directed motion, whilst the holder has moved outside of the cabin. There is a parallelogram linkage with four swivel levers (20), with each two levers fitted with two swivel axes (22) on the holder and a cabin side support respectively. The mechanism comprises a spring assembly (30), exerting an upwards directed resetting force onto the holder, fitting the given load, at least in the lowered swivel positions. In the lower swivel position and with the load removed, the spring assembly is rendered ineffective by a blocking assembly (37-45).