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US 5,664,641 AGranted
Roof maintenance stair step apparatus
OwnerDonald E. Ritzeinventor
Life of this patent
Estimating the term…
Abstract
A stair step assembly provides a safe means for mounting a peaked roof. Individual steps interlock with each other and with tiles of a tile roof so that the assembly cannot slide off the roof. Each step has a platform supported from below by a frame having a primary and secondary rest. The rests lie in contact with the roof and provide a foot constructed so that one portion of the foot is in contact with an vertical edge of a line of tiles to prevent the step from sliding.
Claims1
A combination portable step apparatus and a peaked roof, comprising:
- a plurality of roof tiles laid on the peaked roof in overlapping rows;
- a plurality of roof steps, each of the steps providing a horizontal platform, fixed to and supported by a frame extending downwardly therefrom, and terminating with a rest means angled for flush contact with the roof, and further providing mutual engagement means for connecting one of the steps with the next to form a staircase on one side of the peaked roof, the mutual engagement means on one of the steps comprising at least two horizontally oriented holes, the mutual engagement means on at least one other of the steps comprising at least two vertically oriented pins and at least two of the horizontally oriented holes, the holes on any of the steps receiving the pins of any one of the one other of the steps the rest means comprising a first rest portion positioned under the platform, and a second rest portion positioned lateral to the platform and at a higher elevation than the first rest portion, the first rest portion and the second rest portion being spaced apart so as to enable at least one of the roof tiles to be positionable therebetween so that a vertical leg portion of the second rest portion is in contact with an edge of one of the roof tiles thereby preventing the apparatus from moving downwardly on the roof, the roof steps being removably engagable to establish a stair step arrangement for walking up and down on the peaked roof.
Dependencies are inferred from the claim text.