Work table for open-arm sewing machines

摘要

A work table of the type having a primary or base table top and a secondary table top mounted by means of parallel motion mechanism on such base table top so as to be lowered from a normal working position relative to an open-arm sewing machine resting on the base table top to an open-arm working position relative to such machine and having a short supporting leg for the secondary table top, which leg is adapted to rest upon the base table top in the normal working position, is improved by making the supporting leg retractable and arranging the parallel motion mechanism so that it does not pass dead center in the raising of the secondary table top to normal working position. In this way, considerable saving in table top material is achieved and raising and lowering thereof is facilitated. It is preferable that the supporting leg be part of a crank mechanism for easily and conveniently raising and lowering the secondary table top through the relatively short swinging stroke of the parallel motion mechanism made possible by the invention.