Claims
- 1. 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.
- 2. The tensioning device of claim 1 wherein said locking means includes a tab removably inserted into said cord guide.
- 3. The tensioning device of claim 1 wherein said locking means includes a flexible tab extending through said housing and said cord guide.
- 4. The tensioning device of claim 1 further comprising rails defining a path of movement for said cord guide within said housing.
- 5. The tensioning device of claim 1 wherein said cord guide includes a pulley rotatably disposed in said housing.
- 6. 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.
- 7. The tensioning device of claim 6 wherein said cord guide is slidably disposed in said housing.
- 8. The tensioning device of claim 5 wherein said cord guide includes a pulley rotatably disposed in said housing, said pulley being disabled by said tab.
- 9. The tensioning device of claim 6 wherein said housing includes a slot, and said locking tab extends into said housing through said slot.
- 10. The tensioning device of claim 9 wherein said cord guide includes another slot receiving said locking tab.
- 11. 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.
- 12. The method of claim 11 wherein said cord guide is allowed to change position after said locking member is removed to tension said cord.
RELATED APPLICATIONS
[0001] This application claims priority to provisional application Ser. No. 60/347,973 filed Nov. 13, 2001 and incorporated herein by reference.
Provisional Applications (1)
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Number |
Date |
Country |
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60347973 |
Nov 2001 |
US |