A turnout includes a fixed beam, and a first and a second movable beams respectively on two opposite sides of the fixed beam. The fixed beam is arranged on a turnout platform. The first movable beam is movably arranged on the turnout platform between a first and a second positions. The second movable beam is movably arranged on the turnout platform between a third and a fourth positions. When the first movable beam is at the first position, the second movable beam is at the third position, the first movable beam is separated from the fixed beam, and the second movable beam and the fixed beam form a first passage; when the first movable beam is at the second position, the second movable beam is at the fourth position, the second movable beam is separated from the fixed beam, and the first movable beam and the fixed beam form a second passage.

The present invention relates to an operating and locking mechanism for diamond crossings of central rail-guided vehicles, comprising: a sliding plate (2A) fixed to a fixed part (2) of the diamond crossing forming a channel in its central area in the direction of the X axis, a guide block (10) fixed to the sliding plate (2A) comprising four guide grooves (10A, 10B, 10C, 10D) in the form of circular sectors located on the main plane of the guide block (10), the geometric center of which coincides with a theoretical pivoting point (17) of a moving panel (6) of the diamond crossing, where the sliding plate (2A) and the guide block (10) form a rectangular section groove (2F) the axis of which is parallel to the direction of the X axis, four shafts (12A, 12B, 13A, 13B) fixed to the moving panel (6) symmetrically with respect to a guide rail (7) of said moving panel (6) and perpendicular to the main plane of the moving panel (6), comprising respective rollers (12E, 12F, 13E, 13F) that can be moved and rolled respectively within the guide grooves (10A, 10B, 10C, 10D), and a cam plate (14) sliding in the longitudinal direction within the groove (2F) formed by the sliding plate (2A) and the guide block (10).

A turnout includes a fixed beam, and a first and a second movable beams respectively on two opposite sides of the fixed beam. The fixed beam is arranged on a turnout platform. The first movable beam is movably arranged on the turnout platform between a first and a second positions. The second movable beam is movably arranged on the turnout platform between a third and a fourth positions. When the first movable beam is at the first position, the second movable beam is at the third position, the first movable beam is separated from the fixed beam, and the second movable beam and the fixed beam form a first passage; when the first movable beam is at the second position, the second movable beam is at the fourth position, the second movable beam is separated from the fixed beam, and the first movable beam and the fixed beam form a second passage.

An article transport facility includes an engaging member capable of being moved to an engaging position at which the engaging member is in engagement with a movable guide portion and with a fixed guide portion to hold the movable guide portion in the guiding position, and to a releasing position at which the engaging member is not in engagement with at least one of the movable guide portion and the fixed guide portion wherein the engaging member supports the movable guide portion from below when in the engaging position; an urging member for urging the engaging member; a holding device for generating an operating force with electric power supplied from an electric power supply to hold the engaging member in the engaging position against an urging force of the urging member; and a power-supply controller for controlling the operation of the electric power supply. The power-supply controller maintains electric power supply in an electric power supplying state while fire information is not outputted from a fire detector and switches the electric power supply to an electric power non-supplying state if fire information is outputted from the fire detector.

The present invention relates to an operating and locking mechanism for diamond crossings of central rail-guided vehicles, comprising: a sliding plate (2A) fixed to a fixed part (2) of the diamond crossing forming a channel in its central area in the direction of the X axis, a guide block (10) fixed to the sliding plate (2A) comprising four guide grooves (10A, 10B, 10C, 10D) in the form of circular sectors located on the main plane of the guide block (10), the geometric center of which coincides with a theoretical pivoting point (17) of a moving panel (6) of the diamond crossing, where the sliding plate (2A) and the guide block (10) form a rectangular section groove (2F) the axis of which is parallel to the direction of the X axis, four shafts (12A, 12B, 13A, 13B) fixed to the moving panel (6) symmetrically with respect to a guide rail (7) of said moving panel (6) and perpendicular to the main plane of the moving panel (6), comprising respective rollers (12E, 12F, 13E, 13F) that can be moved and rolled respectively within the guide grooves (10A, 10B, 10C, 10D), and a cam plate (14) sliding in the longitudinal direction within the groove (2F) formed by the sliding plate (2A) and the guide block (10).

An article transport facility includes an engaging member capable of being moved to an engaging position at which the engaging member is in engagement with a movable guide portion and with a fixed guide portion to hold the movable guide portion in the guiding position, and to a releasing position at which the engaging member is not in engagement with at least one of the movable guide portion and the fixed guide portion wherein the engaging member supports the movable guide portion from below when in the engaging position; an urging member for urging the engaging member; a holding device for generating an operating force with electric power supplied from an electric power supply to hold the engaging member in the engaging position against an urging force of the urging member; and a power-supply controller for controlling the operation of the electric power supply. The power-supply controller maintains electric power supply in an electric power supplying state while fire information is not outputted from a fire detector and switches the electric power supply to an electric power non-supplying state if fire information is outputted from the fire detector.