Object is to provide a travel facility in which a travel member, that became incapable of traveling due to a cause other than a power supply failure, can be moved to another location on a travel path. A second travel member, provided separately from the first travel member, includes an external signal generating portion for generating an external travel control signal to be sent to a first travel actuator and a connecting portion which can transmit the external travel control signal. The first travel member includes a first connecting portion which can receive the external travel control signal and can transmit the external control signal to the first travel actuator. A connecting member for receiving and transmitting the external travel control signal is removably connected to, and between, the first connecting portion and the second connecting portion.

Object is to provide a travel facility in which a travel member, that became incapable of traveling due to a cause other than a power supply failure, can be moved to another location on a travel path. A second travel member, provided separately from the first travel member, includes an external signal generating portion for generating an external travel control signal to be sent to a first travel actuator and a connecting portion which can transmit the external travel control signal. The first travel member includes a first connecting portion which can receive the external travel control signal and can transmit the external control signal to the first travel actuator. A connecting member for receiving and transmitting the external travel control signal is removably connected to, and between, the first connecting portion and the second connecting portion.

A system and method for construction of a framed structure which permits on-site storage and relocation of construction materials using trolleys and cranes supported by the framed structure. The system provides a runway surface for removable attachment of trolleys, crane bridges, and platforms by offsetting the first longitudinal beam and a second longitudinal beam from a cross beam and where the first longitudinal beam, second longitudinal beam, and cross beam of the system provide components for the framed structure.

A transport vehicle travels on first and second paths orthogonally or diagonally crossing each other and each including an opening at a center and treads on both sides of the opening. The transport vehicle includes a vehicle in an upper portion; a transport in a lower portion to hold an article; and a column extending downward from the vehicle to the transport. The vehicle includes on front and rear of the column along the first path, at least a pair of first traveling units each including a first traveling wheel that travels on the tread of the first path, and first auxiliary wheels on front and rear of the first traveling wheel along the first path; on front and rear of the column along the second path, at least a pair of second traveling units each including a second traveling wheel that travels on the tread of the second path, and second auxiliary wheels on front and rear of the second traveling wheel along the second path; and a lifting mechanism that raises and lowers one of the at least the pair of first traveling units and the at least the pair of second traveling units.

A transport vehicle travels on first and second paths orthogonally or diagonally crossing each other and each including an opening at a center and treads on both sides of the opening. The transport vehicle includes a vehicle in an upper portion; a transport in a lower portion to hold an article; and a column extending downward from the vehicle to the transport. The vehicle includes on front and rear of the column along the first path, at least a pair of first traveling units each including a first traveling wheel that travels on the tread of the first path, and first auxiliary wheels on front and rear of the first traveling wheel along the first path; on front and rear of the column along the second path, at least a pair of second traveling units each including a second traveling wheel that travels on the tread of the second path, and second auxiliary wheels on front and rear of the second traveling wheel along the second path; and a lifting mechanism that raises and lowers one of the at least the pair of first traveling units and the at least the pair of second traveling units.

An overhead crane has first and second runway rails that extend parallel to a generally horizontal runway axis and a bridge that extends along a bridge axis that is generally horizontal and perpendicular to the runway axis and that is movable on the runway rails along the runway axis. The bridge includes a first bridge reinforcement member pre-loaded under tension to provide an upward deflection of the bridge rail. The first bridge reinforcement member may have at least two upwardly extending struts and a common upper end where the at least two struts meet, the at least two struts having lower ends mechanically connected to the bridge rail at positions longitudinally spaced apart with respect to the bridge axis. The lower ends of the at least two struts are longitudinally translatable along the bridge rail to adjust the tension on the first bridge reinforcement member to thereby adjust the extent of upward deflection of the bridge rail. The bridge further includes a pair of second bridge reinforcement members extending between the upper end of the first bridge reinforcement member and mechanically connected to the bridge rail proximate the first and second outer ends, the second bridge reinforcement members loaded in compression. The runway rails may be constructed in a similar manner as the bridge rail.

A traveling vehicle system includes a track including a first gap, a partial track, and a second gap, a traveling vehicle including a drive wheel and first and second auxiliary wheels, a first auxiliary track on a near side of the first gap in a traveling direction and in contact with a lower end of the first auxiliary wheel while a lower end of the drive wheel passes through the first gap when the drive wheel enters the partial track, and a second auxiliary track on a far side of the second gap in the traveling direction and in contact with a lower end of the second auxiliary wheel while the lower end of the drive wheel passes through the second gap when the drive wheel leaves the partial track.

A traveling vehicle system includes a track including a first gap, a partial track, and a second gap, a traveling vehicle including a drive wheel and first and second auxiliary wheels, a first auxiliary track on a near side of the first gap in a traveling direction and in contact with a lower end of the first auxiliary wheel while a lower end of the drive wheel passes through the first gap when the drive wheel enters the partial track, and a second auxiliary track on a far side of the second gap in the traveling direction and in contact with a lower end of the second auxiliary wheel while the lower end of the drive wheel passes through the second gap when the drive wheel leaves the partial track.

An apparatus for moving rigid slabs comprising a first carriage provided with pick-up means suitable for moving a slab. The first carriage is arranged on a supporting assembly so as to be movable in a transverse direction above a working area via first drive means or driver. The pick-up means are designed to move in a vertical direction towards or away from the working area. The apparatus is characterized in that it includes a second carriage including a support surface for slabs. The second carriage is arranged on the supporting assembly so as to be movable in a transverse direction above the working area via second drive means or driver. The first carriage is designed to move in the transverse direction independently of the second carriage. The first carriage is designed to position slabs on the second carriage and pick up slabs from the second carriage.

An apparatus for moving rigid slabs comprising a first carriage provided with pick-up means suitable for moving a slab. The first carriage is arranged on a supporting assembly so as to be movable in a transverse direction above a working area via first drive means or driver. The pick-up means are designed to move in a vertical direction towards or away from the working area. The apparatus is characterized in that it includes a second carriage including a support surface for slabs. The second carriage is arranged on the supporting assembly so as to be movable in a transverse direction above the working area via second drive means or driver. The first carriage is designed to move in the transverse direction independently of the second carriage. The first carriage is designed to position slabs on the second carriage and pick up slabs from the second carriage.