An operable ramp is moveable between a stowed position and a deployed position to provide a sloped transition between upper and lower surfaces of an architectural setting. The operable ramp includes a ramp panel and a drive assembly coupled to a first end of the ramp panel so that the drive assembly reciprocates the operable ramp between the stowed position and the deployed position. The drive assembly defines a maximum elevation of the first end of the ramp panel when the operable ramp is in the deployed position and also defines a minimum elevation of the first end of the ramp panel when the operable ramp is in the stowed position. The maximum elevation is selectively adjustable relative to the minimum elevation.

A ramp system includes a rail with an outer wall that defines an extent of the ramp in a width dimension. The rail includes an inner wall that is connected to the outer wall at a curb head. The inner wall extends away from the curb head at an angle relative to the outer wall. A side wall is oriented parallel to the outer wall. A lower end of the side wall is connected to a lower end of the outer wall by a bottom wall. A shelf is connected between an upper end of the side wall and a lower end of the inner wall. The shelf extension is connected between the lower end of the inner wall and the outer wall. A deck is secured to the shelf.

A kerb ramp is described comprising a ramp body (12), a stop member (28) depending downwardly from the ramp body (12), an upper lip (20) secured to an upper edge part (16) of the ramp body (12) that, in use, is supported upon the kerb or footpath surface, and a lower lip (22) secured to a lower edge part (18) of the ramp body (12) that, in use, is supported upon the road surface, wherein the upper and lower lips (20, 22) are of a rubber or rubber-like plastics material and extend beneath the ramp body (12) to engage, respectively, the kerb or footpath surface and the road surface, and wherein the stop member (28) is engageable, in use, with an upright wall of the kerb.

An operable ramp is moveable between stowed and deployed positions. In the deployed position, the ramp provides a sloped transition surface that extends from a lower surface of an architectural setting to an upper surface of the architectural setting. The operable ramp includes a ramp panel and a housing. The height of an upper surface of the housing is selectively adjustable. The operable ramp further includes a drive assembly that is at least partially disposed within the housing. The drive assembly has a drive linkage coupled to a first end of the ramp panel to move the operable ramp between the stowed and deployed positions. The drive linkage raises the first end of the ramp panel to a first elevation when the upper surface of the housing is at a first height and to a second elevation when the upper surface of the housing is at a second height.

A curved pathway including a double helix form with no center support column includes a plurality of segments, wherein each of the segments is formed from a plurality of rods coupled to a plurality of connecting nodes. The plurality of rods are arranged in a skewed tetrahedral geometry, which causes the plurality of stair segments to form a helical structure when the plurality of segments are coupled together. The plurality of rods form a spine on an underside of the plurality of stair segments. A pathway surface is coupled to each of the segments. In alternate embodiments, the curved pathway may be formed from sheet metal creased to form a plurality of linear support locations and connecting nodes.

In accordance with one embodiment of the present disclosure, a ramp and/or platform assembly is described. The ramp and/or assembly can include a decking surface for supporting an object. The ramp and/or platform assembly can also include a bracket member that couples to the ramp and/or platform assembly. The ramp and/or platform assembly can also include a handrail assembly which includes an elongated member. The elongated member can include a first end portion that pivotably couples to the bracket member about a pivot point and a second end portion that is distal from the first end portion. The pivot point of the elongated member can be adjustable relative to the decking surface between a first position and a second position. The elongated member can also be adjustable between a first angular position and a second angular position.

A device (1) for helping a wheeled vehicle to negotiate an obstacle, characterized in that it comprises a stationary frame (10) and at least one deployable ramp (2), said ramp having a bottom end intended to come into contact with the ground (3) and an opposite top end mechanically connected to at least one ramp lifting lever that lifts the top end of said ramp over an end-of-extraction-travel portion, said lifting lever being in the form of a foot mounted so as to pivot on the ramp between an inactive flapped-down position and an end position in which said foot at least partially supports the weight of the top end of said ramp, said foot having a lifting function over a travel portion adjacent to the end position and being kept in contact with the ground.

The present pet ramp apparatus includes a base, a ramp, and a support between the base and the ramp. The base and ramp are swingably engaged to each other. The support and ramp are swingably engaged to each other. The support is removably engaged to the base at spaced apart receptors, where changing the receptors changes the height of the upper end of the ramp and further changes the angle of inclination of the ramp.

A stair system with freedom of movement between landings associated therewith includes a connection system configured to connect stairs to a landing associated with a construction, wherein the connection system structurally supports the stairs for safe egress over the stairs while concurrently supporting movement between the landing and a second landing associated with the construction by the stairs in at least one dimension, and wherein the movement supports inter-story drift between the landing and the second landing and removes some force translation between the landing and the second landing.

A precast concrete step unit formed of left and right sidewalls, risers, and treads, wherein left and right sidewalls are assembled from a plurality of pre-cast sidewall panel modules, with a stepped panel module with two or more steps. Pre-cast concrete riser modules and tread modules extend between the right and left sidewalls. Reinforcing cross brace members are fastened to the inside distal surfaces of the left and right sidewalls where they are bolted into screw anchors embedded into the sidewalls. There are also screw anchor inserts embedded into the proximal ends of the sidewalls and into the ends of a first or lowest of the risers, and adapted for affixing the riser and sidewalls using clip angles or right-angle brackets. After alignment, the treads and remaining risers are installed using a construction adhesive which may be applied using a caulk gun. The precast modules each weight about 200 pounds or less, with none exceeding 250 pounds, and most much less. The installation can be carried out by an installation team of two workmen. One-piece concrete footing pieces can be used to support the lower edges of the sidewall panel modules.