Skew adjustment mechanism for a window covering
AssigneeHunter Douglas Inc.
InventorRichard N. Anderson
Life of this patent
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Abstract
A skew adjustment mechanism is used for adjusting the length of a lift cord on a window covering. The lift cord extends from a lift spool at a first end to an anchor drum at a second end. A cord wrap post is provided between the lift spool and the anchor drum so that the lift cord can be wrapped around the cord wrap post to provide friction between the lift cord and the cord wrap post when the lift cord is taut in order to reduce the amount of holding force that is needed to prevent the anchor drum from rotating.
Claims22
A skew adjustment mechanism for adjusting a length of a lift cord in a window covering, said skew adjustment mechanism comprising:
- a covering material;
- a lift cord extending along said covering material, said lift cord being secured at a first end to a lift spool and at a second end to an anchor drum, said lift spool being mounted for accumulating said lift cord upon rotation of said lift spool to effect extension and retraction of said covering material;
- an anchor drum housing which houses said anchor drum for selective rotation relative to said anchor drum housing;
- and
- a cord wrap post that permits at least one wrap of said lift cord thereabout so as to provide friction between said cord wrap post and said lift cord in order to reduce the amount of holding force that is needed to prevent said anchor drum from rotating relative to said anchor drum housing when said lift cord is taut between said lift spool and said anchor drum housing.
A window covering comprising:
- a covering material having a first end and a second end;
- a first rail coupled to said first end of said covering material;
- a second rail coupled to said second end of said covering material;
- a lift cord extending between said first rail and second rail;
- a skew adjustment mechanism comprising:
- a rotatable anchor drum coupled to one end of said lift cord;
- and
- a cord wrap post that permits at least one wrap of said lift cord thereabout so as to provide friction between said cord wrap post and said lift cord in order to reduce the amount of holding force that is needed to prevent said anchor drum from rotating when said lift cord is taut between said lift spool and said anchor drum.
Dependencies are inferred from the claim text.