Patent ID: 6412600
Filing Date: 2002-07-02
Classification: E06C

Abstract:
A ladder for providing access to a building roof having a roof side edge and a roof upper surface, comprising:first and second side rails which are substantially mutually parallel and laterally spaced apart from each other, said side rails each having a side rail longitudinal axis and having engaging notches directly opposite each other to receive a roof edge, each said engaging notch having a notch horizontal segment and a notch vertical segment which at least in part extends vertically, wherein said notch horizontal segment is oriented relative to its side rail longitudinal axis at an angle of substantially seventy five degrees from the side rail longitudinal axis, such that when said notch horizontal segment rests substantially flat on a roof upper surface, said ladder is oriented at a suitable angle for climbing; and a longitudinal series of foot rungs extending perpendicularly between and interconnecting said first and second side rails.