Patent ID: 6874597
Filing Date: 2005-04-05
Classification: B62D,E06C

Abstract:
1. A ladder mechanism comprising: a horizontal surface; a horizontal linear guide vertically spaced above the horizontal surface; a translating vertical member supported on the horizontal surface and coupled to the horizontal linear guide; a vertical member positioned parallel to the translating vertical member and located adjacent one end of the linear guide; and a plurality of rungs including swing sections having one end hinged to the vertical member and a free end movably mounted through the vertical translating member, with the vertical translating member in a fully closed position on the vertical member, the swing sections extend vertically and parallel to both the vertical and vertical translating members with the vertically translating member sandwich between the vertical member and the vertically extending swing sections, and the swing sections assume positions parallel to the horizontal surface when the translating vertical member is spaced from the vertical member along the linear guide.