Inflatable curtain with anchor device

Apparatus for helping to protect an occupant of a vehicle that has a roof and a side structure, said apparatus comprising:

• an inflatable vehicle occupant protection device that is inflatable in a first direction away from the vehicle roof into a position between the side structure of the vehicle and a vehicle occupant;
• an inflation fluid source for providing inflation fluid for inflating said inflatable vehicle occupant protection device;
• an elongated member connected to the vehicle side structure and having a first end and an opposite second end, said elongated member having a length measured between said first and second ends;
• and
• an element connected to said inflatable vehicle occupant protection device, said element at least partially encircling said elongated member along a portion of the length of said elongated member, said element being slidable along said elongated member in said first direction along the length of said elongated member when said inflatable vehicle occupant protection device is inflated, said element including at least one portion that engages said elongated member and blocks said element from sliding along said elongated member in a direction opposite said first direction,
• said elongated member comprising a bar having a first surface and an opposite second surface;
• said element comprising a housing and a latch that extends through said housing, said latch having an aperture that extends through said latch, said aperture being disposed in said housing;
• said bar extending through said housing and through said aperture, said latch including edges that help define said aperture, said edges engaging said first and second surfaces of said bar to block said element from sliding along said bar in a direction opposite said first direction.