Trestle for supporting e.g. board, has components rotatably mounting free ends of head bars of each of two pairs of parts, and leg units mounted in cooperation with free ends of foot bars of parts to form polygon of support of non-zero area

摘要

The trestle has mounting units (5) rotatably mounting free ends of head bars (3) of each of two pairs of parts with respect to each other. The bars are mounted in rotation along a same rotation axis merged with their longitudinal axes such that parts of same pair being symmetric with respect to a plane. Leg units (19) are mounted in cooperation with free ends of foot bars (4) of the parts to form a polygon of support of non-zero area.