Stretcher frame for a canvas has a frame segment with a distance piece to create a space between a stretched canvas and parts of the frame segment

摘要

A frame segment (4) is allocated a distance piece (16) for creating a space between a stretched canvas (6) and parts of the frame segment. The distance piece forms a single piece with the frame segment, which has front and rear sides. It also fits on the front side and its maximum clearance (A) from the rear side is greater than the remaining front side's clearance (B) from the rear side.