1988-02-08
1989-04-25
Apley, Richard J.
Undertaking
52729, A63B 508, E04C 330
Patent
active
048241016
ABSTRACT:
A spring board is provided with an upper plate, a lower plate and interposed flanged profiles. For obtaining an optimal adaption of the spring board's shape to the local strains the local cross-section area of the flanges of the profiles varies along the length of said profiles. In a preferred embodiment of the invention the width of the flanges varies along the length of the profiles thereby producing a spring board having a constant parallel distance between the upper and lower plates and having the necessary varied moments of inertia along the spring board length.
REFERENCES:
patent: 993242 (1911-05-01), Grey
patent: 3408069 (1968-10-01), Lewis
Mark's Handbook for Mechanical Engineers--8th Edition, .COPYRGT.1978, McGraw Hill, chapter 12, pp. 12-35 to 12-38.
Apley Richard J.
Crow S. R.
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