Patent ID: 7219681
Filing Date: 2007-05-22
Classification: E04H,Y10S,Y10T

Abstract:
1. A tension mechanism for use with a frame and covering, the tension mechanism comprising: a first portion configured to be fixably coupled to the frame; a second portion pivotally coupled to the first portion and configured to be coupled to the covering such that the covering is in a relaxed state when the second portion is in a first, unlocked position and such that the covering is in a tensioned state when the second portion is in a second, locked position; wherein the second portion creates the tensioned state in the covering by pivoting movement relative to the first portion from the first, unlocked position to the second, locked position while maintaining the first portion fixed relative to the frame; wherein the second portion comprises a projection configured to engage the covering; wherein the projection extends generally upwardly when the second portion is in the first position; and wherein the projection extends generally downwardly when the second portion is in the second position.