A construct can include an access drift; a length of rail disposed in the access drift; a pair of raise climbers, each adapted to be supported by the rail; a turntable to which the rail is mounted, the turntable being adapted to support the rail, and a raise climber supported thereby, for movement about an axis; a nest disposed adjacent the turntable; and a plurality of rails, each extending from the turntable such that, when the turntable is operatively positioned, the rail of the turntable is aligned therewith, the plurality including at least a pair of curve rails and a nest rail, the curve rails each being adapted to develop a raise and the nest rail being positioned in the nest.

A construct can include an access drift; a length of rail disposed in the access drift; a pair of raise climbers, each adapted to be supported by the rail; a turntable to which the rail is mounted, the turntable being adapted to support the rail, and a raise climber supported thereby, for movement about an axis; a nest disposed adjacent the turntable; and a plurality of rails, each extending from the turntable such that, when the turntable is operatively positioned, the rail of the turntable is aligned therewith, the plurality including at least a pair of curve rails and a nest rail, the curve rails each being adapted to develop a raise and the nest rail being positioned in the nest.

The present invention relates to a cross rail structure for an OHT system and an OHT system using the same.

According to the present invention, there is provided a cross rail structure for an OHT system, that is a point at which two orthogonal rails among rails that are installed in an OHT system and transport vehicles intersect with each other. The cross rail structure includes a pair of auxiliary rails that are installed at substantially the same height as the rail at the point at which the rails intersect with each other, and disposed parallel to each other at a predetermined distance; a movement unit that moves the auxiliary rails up and down; a rotation unit that rotates the auxiliary rail so that the auxiliary rails are disposed in any one of two directions orthogonal to each other; and a distance holding unit that holds a distance between the pair of auxiliary rails without an interference with the vehicle.

The present invention relates to a cross rail structure for an OHT system and an OHT system using the same.

According to the present invention, there is provided a cross rail structure for an OHT system, that is a point at which two orthogonal rails among rails that are installed in an OHT system and transport vehicles intersect with each other. The cross rail structure includes a pair of auxiliary rails that are installed at substantially the same height as the rail at the point at which the rails intersect with each other, and disposed parallel to each other at a predetermined distance; a movement unit that moves the auxiliary rails up and down; a rotation unit that rotates the auxiliary rail so that the auxiliary rails are disposed in any one of two directions orthogonal to each other; and a distance holding unit that holds a distance between the pair of auxiliary rails without an interference with the vehicle.

A construct can include an access drift; a length of rail disposed in the access drift; a pair of raise climbers, each adapted to be supported by the rail; a turntable to which the rail is mounted, the turntable being adapted to support the rail, and a raise climber supported thereby, for movement about an axis; a nest disposed adjacent the turntable; and a plurality of rails, each extending from the turntable such that, when the turntable is operatively positioned, the rail of the turntable is aligned therewith, the plurality including at least a pair of curve rails and a nest rail, the curve rails each being adapted to develop a raise and the nest rail being positioned in the nest.

A construct can include an access drift; a length of rail disposed in the access drift; a pair of raise climbers, each adapted to be supported by the rail; a turntable to which the rail is mounted, the turntable being adapted to support the rail, and a raise climber supported thereby, for movement about an axis; a nest disposed adjacent the turntable; and a plurality of rails, each extending from the turntable such that, when the turntable is operatively positioned, the rail of the turntable is aligned therewith, the plurality including at least a pair of curve rails and a nest rail, the curve rails each being adapted to develop a raise and the nest rail being positioned in the nest.

A self-propelled unit for movable operation on a support structure along a first axis of movement and a second axis of movement that is transverse to the first axis of movement includes a carrier configured for movable displacement on the support structure. A first conveyor assembly is operable to move the carrier on the support structure along the first axis of movement. A second conveyor assembly is operable to move the carrier on the support structure along the second axis of movement. A light source can be attached to the carrier in an operable mode to provide illumination to an area in proximity to the carrier. At least one power contact is configured to maintain electrical contact between the carrier and the support structure.

A self-propelled unit for movable operation on a support structure along a first axis of movement and a second axis of movement that is transverse to the first axis of movement includes a carrier configured for movable displacement on the support structure. A first conveyor assembly is operable to move the carrier on the support structure along the first axis of movement. A second conveyor assembly is operable to move the carrier on the support structure along the second axis of movement. A light source can be attached to the carrier in an operable mode to provide illumination to an area in proximity to the carrier. At least one power contact is configured to maintain electrical contact between the carrier and the support structure.

An article transport facility includes a transport device which has a connecting portion connected to the storage device, and which is configured to transport an article. The connecting portion is located on the first side with respect to the first path whereas a subject path is located on the second side with respect to the first path. The transporting path of an article by the transport device is so located to cross the first path in plan view and to extend at least from the connecting portion and to the second side with respect to the first path. A first transfer portion to or from which an article is transferred by a transport vehicle traveling along the subject path is set in a portion of the transporting path that is located on the second side with respect to the first path.

An article transport facility includes a transport device which has a connecting portion connected to the storage device, and which is configured to transport an article. The connecting portion is located on the first side with respect to the first path whereas a subject path is located on the second side with respect to the first path. The transporting path of an article by the transport device is so located to cross the first path in plan view and to extend at least from the connecting portion and to the second side with respect to the first path. A first transfer portion to or from which an article is transferred by a transport vehicle traveling along the subject path is set in a portion of the transporting path that is located on the second side with respect to the first path.