Tab release cord tension device
AssigneeRollease, Inc.
InventorsDavid M. Cross, Richard Fraczek
Life of this patent
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Abstract
A tensioning device for the cord loop of a window treatment apparatus includes a cord guide disposed in a housing, a biasing element such as a spring and a locking member that locks the cord guide into an installation position. During installation, the cord guide is fixed so that it cannot move and does not affect the tensioning of the cord. After installation, the locking member is removed and the cord guide can move in one direction or another to properly tension the cord.
Claims12
A tensioning device adapted to tension a cord loop of a window treatment apparatus, said tensioning device comprising:
- a housing;
- a cord guide disposed in said housing and adapted to receive a portion of the cord loop;
- a biasing means adapted to bias said cord guide to apply tension on said cord loop;
- and
- locking means adapted to lock said cord guide in an installation position, said locking means being removable to allow said cord guide to tension said cord loop.
A tensioning device comprising:
- a housing having two housing portions;
- a cord guide movably disposed within said housing and adapted to receive a cord loop;
- a biasing spring coupled to said cord guide and adapted to apply a biasing force on said cord guide to thereby tension said cord loop;
- and
- a locking tab extending through said housing, said locking tab being constructed and arranged to lock said cord guide against movement during installation, said locking tab being removable to release said biasing spring.
A method of tensioning the cord of a window treatment apparatus comprising:
- providing a tensioning device including a housing with a cord guide adapted to receive the cord guide, a spring adapted to bias said cord guide to tension said cord and a locking member coupled to said cord guide to lock said cord guide in an installation position;
- installing said tensioning device with said locking member locking said cord guide in the installation position;
- and
- removing said locking member to allow said cord guide and said spring to tension said cord.
Dependencies are inferred from the claim text.