Patent attributes
A stencil stretcher frame unit comprises a stencil stretcher frame for stretching a printing stencil, the stencil stretcher frame including a seat; a protective device accommodated in the seat and holding the stencil stretcher frame, the protective device including a plurality of protective bars configured to hold the printing stencil in a plane and to accommodate a circumferential edge of the printing stencil so as to cover the circumferential edge along a circumference of the printing stencil, adjacent ones of the plurality of protective bars being supported on each other at respective end areas of the protective bars so as to allow a relative movement with respect to each other; and a joining device configured to fasten the protective device to the stencil stretcher frame.
