Patent ID: 8430027
Filing Date: 2013-04-30
Classification: B41F,H05K

Abstract:
1. A frame unit for tensioning a printing screen, the frame unit comprising a frame including at least one frame member, the at least one frame member comprising: a supporting frame element; a plurality of engagement elements disposed along the supporting frame element for engaging a fitted printing screen to tension the same, wherein each engagement element comprises a body which is pivotally coupled to the supporting frame element such that the engagement element is pivotable in one, tensioning sense to tension the printing screen and the other, opposite sense to adopt a configuration in which the printing screen can be fitted to or removed from the frame unit, a first, engagement arm extending from the body for engaging the printing screen, and a second, biasing arm extending from the body to which a biasing force is applied to bias the engagement element to pivot in the tensioning sense, and each of the engagement elements is pivotable independently of the other; and at least one biasing element operative to apply a biasing force to the biasing arm of the engagement elements to bias the engagement elements to pivot in the tensioning sense and tension the printing screen.