Concrete formwork frame assembly and method of stripping concrete formwork from a concrete surface
OwnerWasyl Rosatiinventor
Life of this patent
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Abstract
This disclosure relates to a frame for use with formwork to support the formwork for concrete casting and for stripping formwork from a concrete surface. The formwork is secured to the frame assembly such that the level at which the formwork is supported by the framework is adjustable so as to be movable between at least a first level above a floor surface selected for concrete casting, and a second level where the formwork is either away from the cured concrete (i.e. stripped) or unsupported by the frame assembly. The disclosure provides a means of both supporting formwork during concrete casting as well as a means of stripping the formwork after the concrete is cast. An associated method is also disclosed.
Claims12
A frame assembly supporting a separable concrete formwork during pouring and curing of concrete, the separable formwork being secured to the frame assembly using fasteners or clips, the frame assembly comprising a lower frame portion that is configured to engage at least one of a floor or ground and an upper frame portion that is moveable with respect to the lower frame portion, wherein the lower frame portion has four lower legs configured to engage the floor or ground and the upper frame portion has four legs, each one of the four legs of the upper portion is configured to move telescopically with respect to a respective lower leg of the lower portion, and at least one adjustable foot adjacent to and separate from each of the lower legs of the lower frame portion, each adjustable foot assembly being adapted to selectively extend or retract relative to its associated lower leg with fine adjustment, wherein, in use, each foot assembly is configured to be extended until all of the foot assemblies are in floor or ground contact during pouring and curing, but the lower legs are not, and wherein retraction of at least one foot assembly out of ground or floor contact strips the formwork from cured concrete using the combined weight of the formwork and the frame assembly.
A method for stripping concrete formwork from cured concrete using a frame assembly comprising a lower frame portion that is configured to engage at least one of a floor or ground and an upper frame portion that is moveable with respect to the lower frame portion, wherein the lower frame portion has four lower legs configured to engage the floor or ground and the upper frame portion has four legs, each one of the four legs of the upper portion is configured to move telescopically with respect to a respective lower leg of the lower portion, and at least one adjustable foot assembly adjacent to and separate from each of the legs of the lower frame portion, each adjustable foot assembly being adapted to selectively extend or retract relative to its associated leg with fine adjustment,
- the method comprising the steps of extending each foot assembly so that the foot assemblies are in floor or ground contact during pouring and curing, but the lower legs are not, and then retracting at least one foot assembly out of ground or floor contact to strip the formwork from cured concrete using the combined weight of the formwork and the frame assembly.
Dependencies are inferred from the claim text.