A foldable gantry (10) comprising a beam (12) and a first leg assembly (14), the first leg assembly (14) being pivotally mounted at a first end (16) of the beam (12) such that the first leg assembly (14) can move between a first, stowed, position and a second, deployed, position.

The invention relates to a wheel system having a running wheel and a support body which at least partially surrounds the running wheel and in which the running wheel is mounted and from which the running wheel projects in order to come into contact with a rail. In order to allow predictive maintenance of the wheel system with a low inspection effort, it is proposed that a mechanical device for detecting and/or determining wear on the running wheel is mounted on the support body.

The invention relates to a wheel system having a running wheel and a support body which at least partially surrounds the running wheel and in which the running wheel is mounted and from which the running wheel projects in order to come into contact with a rail. In order to allow predictive maintenance of the wheel system with a low inspection effort, it is proposed that a mechanical device for detecting and/or determining wear on the running wheel is mounted on the support body.

A hoist and crane assembly is presented. The hoist and crane assembly contains an extendable and retractable hoist and crane subassembly that longitudinally moves in and out from the hoist and crane assembly. Further, the hoist and crane subassembly also contains a lateral rail system for moving shipping containers side to side within an associated trailer, for example. Yet further, means for moving shipping containers from the rear to the front of an associated trailer are also contained within the hoist and crane assembly.

A hoist and crane assembly is presented. The hoist and crane assembly contains an extendable and retractable hoist and crane subassembly that longitudinally moves in and out from the hoist and crane assembly. Further, the hoist and crane subassembly also contains a lateral rail system for moving shipping containers side to side within an associated trailer, for example. Yet further, means for moving shipping containers from the rear to the front of an associated trailer are also contained within the hoist and crane assembly.

A hoist and crane assembly is presented. The hoist and crane assembly contains an extendable and retractable hoist and crane subassembly that longitudinally moves in and out from the hoist and crane assembly. Further, the hoist and crane subassembly also contains a lateral rail system for moving shipping containers side to side within an associated trailer, for example. Yet further, means for moving shipping containers from the rear to the front of an associated trailer are also contained within the hoist and crane assembly.

A hoist and crane assembly is presented. The hoist and crane assembly contains an extendable and retractable hoist and crane subassembly that longitudinally moves in and out from the hoist and crane assembly. Further, the hoist and crane subassembly also contains a lateral rail system for moving shipping containers side to side within an associated trailer, for example. Yet further, means for moving shipping containers from the rear to the front of an associated trailer are also contained within the hoist and crane assembly.

A running wheel (1, 2) for a crane (16), in particular gantry crane, comprising a shaft (3), a wheel rim (4) and a hub (5) connecting the shaft (3) to the wheel rim (4) for rotation therewith, at least one connection between the hub (5) and the shaft (3) and/or between the hub (5) and the wheel rim (4) having a press fit (6) and a first form fit established by a first stop surface (8), the first form fit blocking a relative movement of the hub (5) in relation to the shaft (3) or the wheel rim (4) in a first direction (17) running parallel to an axis of rotation (7) of the running wheel (1, 2), wherein the connection additionally has at least one second form fit established by a second stop surface (9), wherein the second form fit blocks the relative movement of the hub (5) in relation to the shaft (3) or the wheel rim (4) in a second direction (18) opposed to the first direction (17).

A running wheel (1, 2) for a crane (16), in particular gantry crane, comprising a shaft (3), a wheel rim (4) and a hub (5) connecting the shaft (3) to the wheel rim (4) for rotation therewith, at least one connection between the hub (5) and the shaft (3) and/or between the hub (5) and the wheel rim (4) having a press fit (6) and a first form fit established by a first stop surface (8), the first form fit blocking a relative movement of the hub (5) in relation to the shaft (3) or the wheel rim (4) in a first direction (17) running parallel to an axis of rotation (7) of the running wheel (1, 2), wherein the connection additionally has at least one second form fit established by a second stop surface (9), wherein the second form fit blocks the relative movement of the hub (5) in relation to the shaft (3) or the wheel rim (4) in a second direction (18) opposed to the first direction (17).

A wheel block, preferably for an overhead traveling crane, wherein the wheel block comprises a housing and a wheel mounted in the housing and protruding out of the housing. In order to allow for proactive maintenance of the wheel with a simple checking process and simultaneously reliable loading and, in particular, overloading detection and identification, according to the invention, the wheel block has a contactless operating measuring device for determining the distance between the measuring device and the wheel, in order to detect and/or identify and/or predict any current and/or future wear on the wheel and/or a loading, in particular an unloaded state and/or an overloaded state, of the wheel block based on measurement signals or measurement data from the measuring device and an evaluation thereof.