UGV bridging system includes a first end of a first elongated span of a hinged bridge structure disposed on a deployment support bracket which is secured to a UGV. A second elongated span is hingedly supported at a second end of the first elongated span opposed from the first end. A tension element applies a tension force to the first elongated span at a location intermediate the first and second ends. The tension force secures the first elongated span in a stowed position adjacent the deployment support bracket. A retention element associated with the deployment support bracket prevents the second elongated span from rotating about the hinge axis in response to a spring bias force. Deployment involves pivoting the first elongated span and concurrently releasing the second elongated span from the retention element in response to the extending.

A movable tunnel braking system and a passage boarding bridge is provided. The movable tunnel braking system includes a brake plate, a brake pin and a triggering device. The brake plate is fixedly disposed at a first tunnel of the plurality of tunnels, and the brake plate is provided with a plurality of brake slots. The brake pin is movably disposed at a second tunnel of the plurality of tunnels, which is sleeve-connected with the first tunnel and can be combined with the brake slot. The triggering device includes a mechanical blocking portion, a linkage mechanism and a tensile spring. The mechanical blocking portion is fixedly disposed at the second tunnel. When the tensile wire rope or the retracting wire rope is broken, the linkage mechanism is driven to move and drives the brake pin to combine with the brake slot, to brake the first tunnel and the second tunnel.

UGV bridging system includes a first end of a first elongated span of a hinged bridge structure disposed on a deployment support bracket which is secured to a UGV. A second elongated span is hingedly supported at a second end of the first elongated span opposed from the first end. A tension element applies a tension force to the first elongated span at a location intermediate the first and second ends. The tension force secures the first elongated span in a stowed position adjacent the deployment support bracket. A retention element associated with the deployment support bracket prevents the second elongated span from rotating about the hinge axis in response to a spring bias force. Deployment involves pivoting the first elongated span and concurrently releasing the second elongated span from the retention element in response to the extending.

A ramp system is disclosed which may include first and second components. The first component may include horizontal and vertical portions, and a hook. The horizontal portion may be supported by a lip of a structure, and may have a width equivalent to a length of the lip. The vertical portion may be coupled with, and hang downward from, the horizontal portion, and may have the same width as the horizontal portion. The hook may be coupled with the vertical portion, and may have the same width as the horizontal portion. The second component may include a protrusion and channel. The protrusion may have a width equal or less than the width of the horizontal portion, and be supported by the hook. The channel may be coupled with the protrusion, and have the same width. The channel may receive a planar component which forms a sloped surface of a ramp.

A ramp system is disclosed which may include first and second components. The first component may include horizontal and vertical portions, and a hook. The horizontal portion may be supported by a lip of a structure, and may have a width equivalent to a length of the lip. The vertical portion may be coupled with, and hang downward from, the horizontal portion, and may have the same width as the horizontal portion. The hook may be coupled with the vertical portion, and may have the same width as the horizontal portion. The second component may include a protrusion and channel. The protrusion may have a width equal or less than the width of the horizontal portion, and be supported by the hook. The channel may be coupled with the protrusion, and have the same width. The channel may receive a planar component which forms a sloped surface of a ramp.

A roadway crossover apparatus includes a first manifold having at least one fluid inlet and a plurality of fluid outlets, a second manifold having a plurality of fluid inlets and at least one fluid outlet, and a plurality of polymeric tubes. Each polymeric tube has a first end fluidically connected to one of the fluid outlets of the first manifold and a second end fluidically connected to a corresponding one of the fluid inlets of the second manifold so the polymeric tubes extend between the first manifold and the second manifold with the first manifold and the second manifold spatially disposed relative to one another and the polymeric tubes spatially disposed relative to one another to permit a vehicle to pass over the polymeric tubes between the first manifold and the second manifold when the first manifold and the second manifold are positioned on a roadway.

A roadway crossover apparatus includes a first manifold having at least one fluid inlet and a plurality of fluid outlets, a second manifold having a plurality of fluid inlets and at least one fluid outlet, and a plurality of polymeric tubes. Each polymeric tube has a first end fluidically connected to one of the fluid outlets of the first manifold and a second end fluidically connected to a corresponding one of the fluid inlets of the second manifold so the polymeric tubes extend between the first manifold and the second manifold with the first manifold and the second manifold spatially disposed relative to one another and the polymeric tubes spatially disposed relative to one another to permit a vehicle to pass over the polymeric tubes between the first manifold and the second manifold when the first manifold and the second manifold are positioned on a roadway.

A passenger boarding bridge comprises: a walkway section which is provided at an outer tunnel of adjacent tunnels, and is movable between a walkway position and a non-walkway position located under the walkway position; and a plurality of rotary members arranged along the lengthwise direction of the outer tunnel, each of the plurality of rotary members being rotatable around a vertical rotation axis between a first rotation position at which the rotary member supports an end portion of the walkway section while at the walkway position and a second rotation position at which the rotary member does not support the end portion. In a case where at least one of adjacent rotary members of the plurality of rotary members is at the second rotation position, the adjacent rotary members partially overlap with each other when viewed in the width direction of the walkway section or in the vertical direction.

A crawler bridge (10) having a bridge section (12) for bridging across opposite sides of a gap G. The bridge section (12) being connected to a support structure (14) which has a pair of elongate beams (16,17), that are spaced apart and generally parallel. The beams (16,17) each including leading and trailing feet (18,19). The bridge section (12) is attached to the beams (16,17) for relative movement forward and backward along the beams (16,17) and vertically up and down. The crawler bridge (10) has a first mode of operation when the leading and trailing feet 18,19 of the beams (16,17) are in engagement with a ground surface, in which the bridge section (12) is supported by the support structure (14) elevated above the ground surface and is movable forward and backward along the beams (16,17) and vertically up and down. The crawler bridge (10) has a second mode of operation when the bridge section (12) has been moved downward relative to the beams (16,17) and into engagement with a supporting surface, in which the leading and trailing feet (18,19) of the beams (16,17) are lifted away from the supporting surface and the beams (16,17) are movable forward and backward relative to the bridge section (12) and vertically up and down relative to the bridge section (12).

A crawler bridge (10) having a bridge section (12) for bridging across opposite sides of a gap G. The bridge section (12) being connected to a support structure (14) which has a pair of elongate beams (16,17), that are spaced apart and generally parallel. The beams (16,17) each including leading and trailing feet (18,19). The bridge section (12) is attached to the beams (16,17) for relative movement forward and backward along the beams (16,17) and vertically up and down. The crawler bridge (10) has a first mode of operation when the leading and trailing feet 18,19 of the beams (16,17) are in engagement with a ground surface, in which the bridge section (12) is supported by the support structure (14) elevated above the ground surface and is movable forward and backward along the beams (16,17) and vertically up and down. The crawler bridge (10) has a second mode of operation when the bridge section (12) has been moved downward relative to the beams (16,17) and into engagement with a supporting surface, in which the leading and trailing feet (18,19) of the beams (16,17) are lifted away from the supporting surface and the beams (16,17) are movable forward and backward relative to the bridge section (12) and vertically up and down relative to the bridge section (12).