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US 6,824,440 B2Granted
Element of erection set, and erection set provided therewith
OwnerAlexander Brenerinventor
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OwnerAlexander Brenerinventor
Estimating the term…
An element of an erection set has a body provided with a rigid projection and a flexible plate spaced from one another so as to form a gap therebetween such that a width of the gap between ends of the projection and the plate is greater than a width of the gap between tops of the rigid projection and the flexible plate is greater than a width of the gap between bottoms of the rigid projection and the flexible plate, and the plates of at least two of such elements are engageable with one another and displaceable relative to one another due to equalization of stresses formed by deformation of the flexible plate during displacement of the flexible plates over the rigid projections of two elements relative to one another and bending of the flexible plates over a surface of the rigid projections during connection of two elements with one another.
An erection set comprising a plurality of first and second structural elements each extending along a respective longitudinal axis between leading and trailing ends, the trailing end of the first element being configured to receive the leading end of the second element in an engaging position, wherein the leading end of the second element is deformed radially inwards towards the longitudinal axis to have a concave end region provided with a nadir, and the trailing end of the first element is deformed radially outwards from the longitudinal axis to have a convex end region provided with an apex, which is spaced axially from the nadir of the second element, the convex and concave end regions of the first and second elements having first and second portions, respectively, juxtaposed with and extending complementary to one another between the apex and nadir to prevent relative displacement of the first and second elements in the engaging position thereof.
Dependencies are inferred from the claim text.