초록 ▼

A construction system incorporating the formation of a plurality of building components, such as but not limited to concrete slabs used for floors, wherein the slabs are formed about a plurality of supporting columns of a predetermined height depending upon the intended height of the building under

A construction system incorporating the formation of a plurality of building components, such as but not limited to concrete slabs used for floors, wherein the slabs are formed about a plurality of supporting columns of a predetermined height depending upon the intended height of the building under construction. The subject system includes a plurality of lifting assemblies secured to the slabs, and structured to travel along the length of the columns carrying the slabs as they travel. A control assembly is provided to insure a level orientation of the slabs and a consistent rate of travel and lifting force being exerted on the slabs uniformly so as to maintain such slabs, during lifting, in a level orientation to prevent damage thereto.

대표청구항 ▼

A construction system of the type primarily designed to lift building components, including one or more concrete slabs about a plurality of columns and in a substantially level orientation, from a ground level, to a designated height dependent upon the height of the building being constructed, said

A construction system of the type primarily designed to lift building components, including one or more concrete slabs about a plurality of columns and in a substantially level orientation, from a ground level, to a designated height dependent upon the height of the building being constructed, said system comprising: (a) a plurality of lifting assemblies each movably secured to one of a plurality of upstanding columns and including a crosshead construction structured to travel along the length thereof, (b) each of said lifting assemblies including a suspension means for lifting said crosshead construction along the length of said column and having an elongated configuration and being secured at substantially one end thereof to any upper portion of said one column at a height greater than said designated height to which said slab is to be lifted, said suspension means movably secured to said crosshead construction and cooperatively structured therewith for movable engagement of said crosshead construction along the length of said suspension means towards said upper portion of said column, (c) each of said lifting assemblies further including pulling means for lifting the slab and mounted to extend along a length of said one column, said pulling means movably connected to said crosshead construction and to the slab being lifted, said pulling means structured to provide movement of both the slab and said crosshead construction along the length thereof, (d) said crosshead construction including an upper crosshead and a lower crosshead; a first and a second drive assembly interconnected in driving relation between said crossheads, said drive assemblies cooperatively structured to cause sequential advancement of said crossheads and the connected slab along the length of said column, (e) a shearhead structure interconnecting the slab to said pulling means and being fixedly secured to the slab being lifted and movably attached to said pulling means so as to travel along the length of said column, (f) control means for regulating the rate of travel of said lifting assemblies along said respective columns and including a plurality of sensor elements each connected in a fixed position on one of said columns and collectively disposed to extend therefrom into communicating relation with a scanner assembly, (g) said scanner assembly mounted on the slab being lifted so as to travel therewith, and said plurality of sensor elements caused to travel relative to said scanner assembly upon lifting movement being imparted to the slab, and said control means interconnected to said drive assemblies and structured to stop actuation thereof upon a variance in the rate of travel of said sensor elements relative to one another passed said scanned assembly.