Patent ID: 8931540
Filing Date: 2015-01-13
Classification: E06B

Abstract:
1. A window treatment comprising: a headrail that is elongate along a first direction and is configured to be mounted to a structure, the headrail defining an internal cavity; a lift mechanism that is mounted within the internal cavity; a covering material having a top end and a bottom end spaced from the top end along a second direction that is perpendicular to the first direction, the top end of the covering material being attached to the headrail; a bottom bar attached to the bottom end of the covering material, the bottom bar having a bar body that defines a first bar end and a second bar end that is spaced from the first bar end along a third direction, the bottom bar defining a channel that extends at least partially through the bar body along the third direction; a sliding member moveable within the channel along the third direction, the sliding member including a member body that defines a first member end and a second member end spaced from the first member end along the third direction; and a first lift cord and a second lift cord, each of the first and second lift cords having a first end that is operatively attached to the lift mechanism, and a respective second end that is attached to a respective one of the first and second member ends of the member body such that rotation of the lift mechanism causes the bottom bar to either move toward or away from the headrail along the second direction, wherein the first and second bar ends are configured to be moved relative to each other along the second direction from a first relative position to a second relative position whereby movement of the first and second bar ends from the first relative position to the second relative position causes the sliding member to move within the channel along the third direction, and wherein the sliding member and the bottom bar are configured to generate a frictional force relative to each other, the frictional force sufficient to maintain the first and second bar ends in the second relative position.