Trailer tongue with vertical lift geometry
作者： Patrick W. Breslin , Thomas D. Carney , Roderick L. Evans
DOI:
关键词: Trailer 、 Structural engineering 、 Tongue 、 Vertical direction 、 Lift (force) 、 Engineering
摘要: A trailer tongue includes a support and leg slidingly pivotally engaged with said support. When the is raised or lowered moves in substantially vertical direction. In preferred embodiment, rigid strut having first second ends means for extending retracting connect to leg. The end of connected
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