Weld-free mask support blade structure

摘要

The present invention provides an improved tension mask frame assembly 10 in which mask support members 40 are provided with side walls 42, 46 and a back wall 44 that are held together primarily by means of either tabs formed along an edge of the back wall 48 received into respective apertures 50 in the side wall 42 or by means of a ridge 69 formed in the side wall 62 which abuts the back wall 64.