From the very beginning we have been paying close attention to accessibility issues at the “L” Shaped House. The original design of our home included a ramp from the garage to the mudroom entrance (here). The elevation issue encountered early in the construction process forced us to change course and turn our attention toward a lift in the garage. After carefully considering many options we have decided to build our own lift mechanism designed by the world class engineering staff at Professional Instruments Co. Dan Oss, and Byron Knapp have come up with the ingenious scissors lift mechanism (that lifts the platform through center) shown in the Solid Works 3D model below. Hydraulic cylinders connected to the off-center vertical linkage (visible in the bottom two sketches) will actuate the the lift and requires only 12” of stoke to raise the platform to it’s full height of 41”.
A refined view of this design showing one of the lifting cylinders in place below…
We plan to start fabricating the lift assembly shortly and hope to have it in place in the garage before the end of the year. The composite sketch below shows the lift mechanism superimposed on a photo of the end wall of the garage with some faint pen and ink additions to the design.
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