Provided is a core grasping method of grasping a core using a core grasping apparatus. The core grasping apparatus includes grasping devices respectively having expandable and contractible grasping parts. The core includes holes, and at least one of the holes has an inside diameter that decreases in the opposite direction from a direction of a turning moment occurring on the core. The core grasping method involves, when grasping the core, expanding the grasping parts inserted in the holes so as to bring the grasping parts into contact with inner walls of the holes of the core, and grasping the core and applying a force that suppresses the turning moment to the core.

Provided is a core grasping method of grasping a core using a core grasping apparatus. The core grasping apparatus includes grasping devices respectively having expandable and contractible grasping parts. The core includes holes, and at least one of the holes has an inside diameter that decreases in the opposite direction from a direction of a turning moment occurring on the core. The core grasping method involves, when grasping the core, expanding the grasping parts inserted in the holes so as to bring the grasping parts into contact with inner walls of the holes of the core, and grasping the core and applying a force that suppresses the turning moment to the core.

The invention relates, inter alia, to a hole gripper which has a pressurized air connection, an elastically deformable bellows portion which can be inflated by the application of pressurized air for clamping in a component hole of a component, and a connecting portion with a connecting channel which connects the pressurized air connection and the bellows portion for supplying pressurized air from the pressurized air connection to the bellows portion. The pressurized air connection, the connecting portion, and the bellows portion are integrally connected to one another in one piece.

A transport apparatus for use in the transport of a heavy structure includes a shape-adjustable adapter realized to adjust between an initial shape and a mating shape; and an actuator configured to effect a change in shape of the shape-adjustable adapter into its initial shape to facilitate positioning of the adapter relative to the structure; and to effect a change in shape of the shape-adjustable adapter into its mating shape to engage the shape-adjustable adapter with a surface of the structure. A method of securing a frustoconical structure during transport is further provided.

A transport apparatus for use in the transport of a heavy structure includes a shape-adjustable adapter realized to adjust between an initial shape and a mating shape; and an actuator configured to effect a change in shape of the shape-adjustable adapter into its initial shape to facilitate positioning of the adapter relative to the structure; and to effect a change in shape of the shape-adjustable adapter into its mating shape to engage the shape-adjustable adapter with a surface of the structure. A method of securing a frustoconical structure during transport is further provided.