E - Fixed Constructions – 06 – B
Patent
E - Fixed Constructions
06
B
E06B 9/32 (2006.01) E06B 9/322 (2006.01) E06B 9/324 (2006.01) E06B 9/326 (2006.01)
Patent
CA 2492432
A cord-operated window covering is provided with means for equalizing the individual lift cord lengths to maintain a horizontal and level bottom rail, while avoiding the choking danger to small children presented by exposed cord loops that can become entangled with the child. A break-away coupling of the exposed cord ends is provided in the form of a shear-loaded, separable joint that is strong when subjected to shear-type forces in normal use, but which is weak when loaded in peel or tension perpendicular to the joint, as would occur in a potentially dangerous child-entangled situation. The joint is formed by surface-modifying products applied to the opposed abutting surfaces of the individual cordlock members. Also disclosed is an embodiment that utilizes a continuous lift cord loop that is frictionally gripped by a gripper member secured to the shade. The gripper member temporarily permits the cord to slip through the gripper if the operator applies sufficient manual downward force on the higher end of a bottom rail that has lost its desired horizontal or level orientation.
Corey John A.
Watkins Richard D.
Comfortex Corporation
Gowling Lafleur Henderson Llp
LandOfFree
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