A hold down device is provided for continuous loop cords or bead chains in a window covering installation. The hold down device engages the cord or chain while the cord or chain is loosely suspended, and prevents operation by encountering the head rail if the cord or chain is operated. Mounting the hold down device in a window covering installation disengages the hold down device from its secured position relative to the cord or chain.

A spring loaded tensioning device for tensioning a flexible blind control element loop to be secured in position on a building, and having a housing shell; a hinged door on the housing shell operable between an open position for insertion of the control element and a closed position, a moveable lock in the housing shell, moveable between a locking position in which it clamps onto the element, and a released position in which the lock is free of the control element; and, a spring urging the lock to clamp onto the control element.

A spring loaded tensioning device for tensioning a flexible blind control element loop to be secured in position on a building , and having a housing shell; a hinged door on the housing shell operable between an open position for insertion of the control element and a closed position, a moveable lock in the housing shell, moveable between a locking position in which it clamps onto the element, and a released position in which the lock is free of the control element; and, a spring urging the lock to clamp onto the control element.

A hold down device is provided for continuous loop cords or bead chains in a window covering installation. The hold down device engages the cord or chain while the cord or chain is loosely suspended, and prevents operation by encountering the head rail if the cord or chain is operated. Mounting the hold down device in a window covering installation disengages the hold down device from its secured position relative to the cord or chain.

A hold down device is provided for continuous loop cords or bead chains in a window covering installation. The hold down device engages the cord or chain while the cord or chain is loosely suspended, and prevents operation by encountering the head rail if the cord or chain is operated. Mounting the hold down device in a window covering installation disengages the hold down device from its secured position relative to the cord or chain.