Stroke stand for conveyance, has inner cylinder barrel connected to extendable hub mast at which load lifting device is elevatable, and which extends from outer cylinder barrel that is connected to another extendable hub mast

摘要

A remote cylinder (8) has an outer cylinder barrel (8a) connected to an extendable hub mast. A piston rod (8b) extending downward from the remote cylinder is supported on a condition mast. An inner cylinder barrel extending from the outer cylinder barrel is connected to another extendable hub mast at which a load lifting device (6) is elevatable.