Static structures (e.g. – buildings) – Openwork; e.g. – truss – trellis – grille – screen – frame – or... – Spacer-positioner; e.g. – rebar chair
Patent
1982-01-21
1984-08-07
Bell, J. Karl
Static structures (e.g., buildings)
Openwork; e.g., truss, trellis, grille, screen, frame, or...
Spacer-positioner; e.g., rebar chair
52687, E04C 516, E04B 140
Patent
active
044635389
ABSTRACT:
A complex concrete reinforcing network is provided with longitudinal reinforcing bars and interconnected stirrups each having a plurality of clips in a specific geometric arrangement acting as a jig and said reinforcing network is embedded in concrete forming a completed concrete structure. The clips are mounted on the associated stirrups so as to be longitudinally and rotationally movable thereon for proper location on the stirrup and for effective coupling with a longitudinal reinforcing bar. The clips are formed with a base having an inwardly extending concavity therein and a pair of divergent spring arms that terminate in a free end. Each free end is curved inwardly towards the other leg and then back towards the base to provide an access opening for insertion of the associated longitudinal reinforcing bar. The edge of the free end of each arm engages the longitudinal reinforcing bar in the clip to retain the bar in its predetermined position on the reinforcing network. Each arm is provided with a hole through which extends the stirrup which is simultaneously engaged by the edges of the holes and the concavity of the base to releasably fix the location of the clips on the stirrup.
REFERENCES:
patent: 1788180 (1931-01-01), White
patent: 3114221 (1963-12-01), Eriksson
patent: 3512330 (1970-05-01), Shlesinger
patent: 3693311 (1972-09-01), Bjerking
patent: 3788025 (1974-01-01), Holmes
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