Patent ID: 8381312
Filing Date: 2013-02-26
Classification: A61F

Abstract:
1. A welding mask, comprising: a mask body for covering an entire face of a wearer having an opening portion corresponding to eyes of a wearer thereof; a rotatable cover rotationally coupled to a front of the mask body, which is pivotable in an upward and downward direction; a shading filter mounted on the rotatable cover so as to shade a light generated during welding operation thereof; an elastic coupling means for rotationally coupling the rotatable cover to both side surfaces of the mask body and providing elastic force to normally urge the rotatable cover in said upward direction, said elastic coupling means comprising a spring having two bending portions formed at both end portions thereof and one bending portion coupled to the mask body; a knob holder having a through hole in the center to be coupled to a coupling hole of the rotatable cover, opening in the bottom for receiving the spring therein and a plurality of latching projections formed along the girth of the through hole; a knob having a circle plate having a plurality of latching grooves corresponding to the plurality of latching projections formed at a lower portion thereof and a column integrally formed at the lower portion thereof and having a vertical groove for inserting and fixing one end portion of the spring in a central portion thereof and a bolt coupling portion formed at a central portion of the vertical groove; and a washer having a through hole for inserting the bolt therein fixed and coupled to the column, the knob holder being coupled to a coupling hole of the rotatable cover, thereby being rotated in company with the rotatable cover during rotating of the knob holder; a fixing means for fixing the rotatable cover or releasing a fixing status thereof formed at one side of the mask body and having a spring receiving portion for receiving the spring, a mounting hole located at an upper surface thereof, and a push plate elastically coupled to the mask body through a spring; a latching protrusion for attaching and deattaching to the mounting hole formed at a lower end portion of the front of the rotatable cover; and a window formed at the opening portion of the mask body corresponding to eyes of the wearer.