Stair forming method and apparatus
AssigneeSRB Construction Technologies Pty. Ltd.
InventorRobert Sladojevic
Life of this patent
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Abstract
A stairway forming system (10) includes a plurality of stacked, elongate stair riser form carriers (12-20), the carriers (12-20) being longitudinally displaceable relative to one another. An anchoring unit (24) anchors at least a lowermost riser form carrier (12) in position relative to a substrate (26). A positioning assembly (28) is attached to at least one of the riser form carriers (12-20) and cooperates with the remaining riser form carriers for displacing the carriers (14-20) in unison relative to one other to adopt a staggered operative configuration approximating an angle of the stairway to be formed.
Claims18
A stairway forming system which includes
- a plurality of stacked, elongate stair riser form carriers, the carriers being longitudinally displaceable relative to one another;
- an anchoring unit for anchoring at least a lowermost riser form carrier in position relative to a substrate;
- and
- a positioning assembly which is attached to at least one of the riser form carriers and which cooperates with the remaining riser form carriers for displacing the carriers in unison relative to one other to adopt a staggered operative configuration approximating an angle of the stairway to be formed.
A method of forming a stairway, the method including
- attaching a stack of elongate stair riser form carriers to a substrate, a stair riser form being attached to a distal end of each carrier;
- arranging the carriers on the substrate so that, initially, all the riser forms are in a first, inoperative configuration relative to one another;
- displacing the carriers relative to one another so that the riser forms are in a second, operative configuration relative to one another with the riser forms being in a step shaped, staggered configuration relative to one another;
- and
- clamping at least two of the carriers together after the carriers have been displaced to retain the riser forms in their operative configuration.
Dependencies are inferred from the claim text.