Coverings for architectural openings with cord lock
AssigneeHunter Douglas Inc.
InventorRalph G. Jelic
Life of this patent
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Abstract
A cord-lock system for use in coverings for architectural openings and adapted to lock a control cord of the opening in any desired position includes a lock member that is pivotal about an axis parallel to the head rail of the covering with the lock member being movable between locked and unlocked positions by movement of the cord in a vertical plane perpendicular to the head rail. A cover plate pivotally overlying the lock member and operatively connected to the lift cords is also moved between locked and unlocked positions by movement of the lift cords in a manner that assures movement of the lock member between its locked and unlocked positions.
Claims28
A covering for an architectural opening movable between extended and retracted positions comprising in combination:
- an elongated horizontally disposed upper rail,
- an elongated bottom rail parallel with said upper rail,
- a retractable panel extending between said upper rail and bottom rail, and
- a control system for moving said covering between said extended and retracted positions, said control system including at least one lift cord operatively connected at one end to said bottom rail and being free at its opposite end, and a pivotal cord lock operatively associated with said cord for locking said cord in predetermined positions to hold said bottom rail in a predetermined releasably fixed spacing from said upper rail, said cord lock including a lock member pivotal about a pivot shaft, wherein said pivot shaft extends in parallel relationship with said upper rail.
A covering for an architectural opening movable between extended and retracted positions comprising in combination:
- an elongated horizontally disposed head rail,
- an elongated bottom rail parallel with said head rail,
- an elongated middle rail parallel with said head rail and said bottom rail and disposed therebetween,
- a retractable panel extending between said bottom rail and middle rail, and
- a control system for moving said covering between said extended and retracted positions, said control system including at least one first lift cord operatively connected to said bottom rail at one end and being free at its opposite end, at least one second lift cord operatively connected to said middle rail at one end and being free at its opposite end, and second identical pivotal cord locks operatively associated with said at least one first and second lift cords respectively for locking said cords in predetermined positions to hold said bottom and middle rails respectively in predetermined releasably fixed spacings from said head rail, said cord locks including a lock member pivotal about a pivot shaft, wherein said pivot shafts extend in parallel relationship with said head rail.
Dependencies are inferred from the claim text.