A kit of parts for securing a plurality of fixtures to an elongate support member is described. The kit of parts comprises a plurality of attachment members. Each attachment member comprises an aperture for receiving the elongate support member and a fixing detail adapted to attach a fixture to the attachment member. The aperture is larger than a lateral dimension of the elongate support member to provide a gap between the attachment member and elongate support member when received in the aperture. The kit of parts also comprises a plurality of locking elements. Each locking element is adapted to be received in the aperture in the gap between the attachment member and the elongate support member to secure the attachment member to the elongate support member by friction. Further, each attachment member is adapted to engage an adjacent attachment member when secured to the elongate support member by at least one said locking element to form a hollow column secured around the elongate support member for supporting a plurality of fixtures.

A kit of parts for securing a plurality of fixtures to an elongate support member is described. The kit of parts comprises a plurality of attachment members. Each attachment member comprises an aperture for receiving the elongate support member and a fixing detail adapted to attach a fixture to the attachment member. The aperture is larger than a lateral dimension of the elongate support member to provide a gap between the attachment member and elongate support member when received in the aperture. The kit of parts also comprises a plurality of locking elements. Each locking element is adapted to be received in the aperture in the gap between the attachment member and the elongate support member to secure the attachment member to the elongate support member by friction. Further, each attachment member is adapted to engage an adjacent attachment member when secured to the elongate support member by at least one said locking element to form a hollow column secured around the elongate support member for supporting a plurality of fixtures.

The present invention relates to a spacer for a prefabricated spiral staircase, which allows adjustment of a height of a gap between footboards for a prefabricated spiral staircase in multiple steps by using minimal disks, and a prefabricated spiral staircase using the same. The spacer for a prefabricated spiral staircase comprises a cylindrical pipe, a lower cap or upper cap, a disk, a height adjustment member, and a location determining member, wherein the height of the spacer is adjusted in multiple stages according to relative rotation between the upper cap and the disk or between the lower cap and the disk.

The present invention relates to a spacer for a prefabricated spiral staircase, which allows adjustment of a height of a gap between footboards for a prefabricated spiral staircase in multiple steps by using minimal disks, and a prefabricated spiral staircase using the same. The spacer for a prefabricated spiral staircase comprises a cylindrical pipe, a lower cap or upper cap, a disk, a height adjustment member, and a location determining member, wherein the height of the spacer is adjusted in multiple stages according to relative rotation between the upper cap and the disk or between the lower cap and the disk.

An assembly includes a plurality of shelving components and posts. The shelving components include a body, a male portion that extends from a first end of the body and a female portion that defines a void in an opposite, second end. The male portion is narrower and shorter than the body. The female portion is sized and shaped to receive the male portion of another shelving component. The shelving components also include first apertures defined by and extending through the male portion, and second apertures defined by and extending through the female portion. The posts are sized and shaped to be inserted into overlapping apertures of first and second shelving components, the overlapping apertures comprising (i) a first aperture in a male portion of the first component inserted into a female portion of the second component and (ii) a second aperture in the female portion of the second component.

An example system in accordance with an aspect of the present disclosure includes an opening assembly and a guard assembly installable in a floor above an enclosed region. The opening assembly is actuatable between an open configuration to provide access to the enclosed region, and a closed configuration in which the opening assembly provides a closed surface. A guard assembly is mounted to the opening assembly and actuatable independent of the opening assembly, between a retracted configuration flush with the closed surface of the opening assembly, and a deployed configuration to serve as a guard for the opening assembly.

An example system in accordance with an aspect of the present disclosure includes an opening assembly and a guard assembly installable in a floor above an enclosed region. The opening assembly is actuatable between an open configuration to provide access to the enclosed region, and a closed configuration in which the opening assembly provides a closed surface. A guard assembly is mounted to the opening assembly and actuatable independent of the opening assembly, between a retracted configuration flush with the closed surface of the opening assembly, and a deployed configuration to serve as a guard for the opening assembly.

The invention relates to a staircase element comprising a tubular mast erectable to a vertical position onto the floor or a corresponding surface of a stair hall, and fillable with concrete; stair step elements fastened at their first end stepwise to the mast and branching off radially from the mast; at least one tubular stringer fastened to the second end of the stair step elements, fillable with concrete and connectable with fastening members to at least one wall of the stair hall, for supporting the stair step elements at their second end and for anchoring the staircase element to a building. The invention also relates to a method for building a staircase.

The invention relates to a staircase element comprising a tubular mast erectable to a vertical position onto the floor or a corresponding surface of a stair hall, and fillable with concrete; stair step elements fastened at their first end stepwise to the mast and branching off radially from the mast; at least one tubular stringer fastened to the second end of the stair step elements, fillable with concrete and connectable with fastening members to at least one wall of the stair hall, for supporting the stair step elements at their second end and for anchoring the staircase element to a building. The invention also relates to a method for building a staircase.

A staircase is provided that includes a column and steps. Each step: is coupled to the column and extends outside of, and away from, the column; includes a tread surface; and can move longitudinally along the column. The staircase can transition to a plurality of states by an actuation system, including closed and open states. The closed state includes the steps positioned at the upper end with the tread surfaces of the plurality of steps oriented around the upper end and coplanar to a flooring surface of the upper floor. The opened state includes the steps positioned at varying distances longitudinally along the column from the upper end towards the lower end so as to form spiraling steps around the column between the upper and lower floors. The steps can move longitudinally along the column for positioning in the closed and opened states.