Static structures (e.g. – buildings) – Openwork; e.g. – truss – trellis – grille – screen – frame – or... – Spacer-positioner; e.g. – rebar chair
Patent
1997-04-01
1998-11-10
Kent, Christopher
Static structures (e.g., buildings)
Openwork; e.g., truss, trellis, grille, screen, frame, or...
Spacer-positioner; e.g., rebar chair
52684, 52712, 52714, E04C 516
Patent
active
058326901
ABSTRACT:
An attachable spacer for maintaining a spaced relationship between first and second wire mesh concrete reinforcing cages is formed of a length of wire and has an elongated central portion adapted to extend between the cages and first and second attachment clips on first and second outer ends of the central portion for attaching the ends of the spacer to the first and second cages. The first attachment clip has a fastener that hooks on a wire of one of the cages so as to resist movement of the spacer in a direction perpendicular to a plane of the cage or transverse to the wire to which the hook is attached. The second attachment clip comprises first and second spaced hooks interconnected by an arm that extends laterally from the second end of the central portion, the hooks being spaced and shaped to fit over and resiliently engage adjacent spaced parallel wires in the second cage so as to restrain the second end of the central portion from movement transverse to the axis of the wires to which the second attachment means is attached. The resilient engagement of the hooks serves to restrain the spacer from rotation about an axis of the central section, locking both ends of the spacer on the spaced cages and restraining the spacer from sliding along the cage wires.
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