SET OF DIFFERENT-HEIGHT STEPPERS FOR LOAD TESTS AND METHOD OF ITS PRODUCTION Russian patent published in 2014 - IPC A63B21/00 

FIELD: process engineering.

SUBSTANCE: invention relates to devices intended for execution of load tests, particularly, to steppers to this end. This set comprises at least two steppers. Note here that every next platform features smaller sizes than previous one. Note also that every stepper is shaped to hollow thin-wall truncated quadrangular pyramid. Side surfaces are inclined to the base at acute angles approximating to right angle. Magnitudes of said angles are selected provided that said stepper can be withdrawn from the mould and fitted in another stepper. Note here that outer top working surface of every stepper features anti-slip properties. Inner side of every steeper comprises lengthwise and crosswise ribs. Note also that two opposite side walls of every stepper are equipped with ledges arranged along all over its length to make grooves there between and feature trapezoidal cross-section. Sizes of ledges and recesses are selected to allow ledges of one stepper fit in recesses of the other stepper in assembly. Besides, this set includes a mat from elastomer material with high friction factor with thrusts arranged at mat outer surface to fit in stepper trapezoidal ledges at jointing together.

EFFECT: higher stability, simplified test procedure.

9 cl, 11 dwg