Modular spiral staircase assembly
AssigneeCustom Iron, Inc.
InventorTerry L. Driscoll
Life of this patent
Estimating the term…
Abstract
A modular spiral staircase assembly that involves a handrail formed of one or more sections and a series of slide members each configured to form a link between both a baluster and the handrail of the staircase. The use of such slide members enables initial ease with respect to positioning of the balusters along the extent of the handrail and subsequent secure locking of such balusters in position with respect to the handrail for alignment purposes with corresponding treads of the staircase. Additionally, using such slide members along the extent of the handrail provides the installer ready-made tools for progressively shaping the extent of the handrail so as to align it with the curvature of the staircase.
Claims22
A modular spiral staircase system which can be used to meet varying structural requirements for different applications, comprising:
- (a) a central column;
- (b) a plurality of treads extending radially outward from the central column, the plurality of treads being vertically and angularly offset from each other over a height of the central column;
- (c) a handrail comprising one or more sections, the one or more sections forming a continuous channel, the channel defined by two side walls extending over the longitudinal extent of the handrail;
- (d) a plurality of slide members, each of the slide members forming a channel, the channel defined by two side walls extending over the longitudinal extent of the slide member, each slide member sized to fit within the handrail channel;
- and
- (e) a plurality of balusters, each of the plurality of balusters being operatively coupled at an upper end thereof with a corresponding one of the plurality of the slide members such that each of the plurality of balusters is vertically positionable along the extent of one of the plurality of handrail sections via selective sliding of the corresponding slide member within the handrail channel, each of the plurality of slide members secured to the handrail with a fastener, wherein each fastener is entirely situated within the handrail channel.
A modular spiral staircase system which can be used to meet varying structural requirements for different applications, comprising:
- (a) a central column;
- (b) a plurality of treads extending radially outward from the central column, the plurality of treads being vertically and angularly offset from each other over a height of the central column;
- (c) a handrail comprising one or more sections, the one or more sections forming a continuous channel, the channel defined by two side walls extending over the longitudinal extent of the handrail;
- (d) a plurality of slide members, each of the slide members forming a channel, the channel defined by two side walls extending over the longitudinal extent of the slide member, each slide member sized to fit within the handrail channel;
- and
- (e) a plurality of balusters, each of the plurality of balusters being operatively coupled at an upper end thereof with a corresponding one of the plurality of the slide members such that each of the plurality of balusters is vertically positionable along the extent of one of the plurality of handrail sections via selective sliding of the corresponding slide member within the handrail channel, each slide member operatively secured to the handrail and the upper end of each baluster joined to each corresponding slide member via a pin, wherein the pin is entirely situated within the channel of the handrail.
Dependencies are inferred from the claim text.