发明名称 FARM IMPLEMENT WITH RETRACTABLE LADDER
摘要 A farm implement includes a ladder for climbing in relation to a container. The ladder includes an upper ladder portion and a lower ladder portion. The upper end of the upper ladder portion is pivotably connected to the container via a first pivot defining a first horizontal pivot axis about which the upper ladder portion is pivotable between a retracted position against the container and an extended position angled away from the container, and a first end of the lower ladder portion is pivotably connected to the lower end of the upper ladder portion via a second pivot defining a second horizontal pivot axis about which the lower ladder portion is pivotable between a folded position extending upwardly along the upper ladder portion and an unfolded position extending downwardly from the upper ladder portion. A movable pivot link is pivotably connected to the lower end of the upper ladder portion via a third pivot defining a third horizontal pivot axis, and the upper ladder portion includes a pivoting step connected to the movable pivot link via the third pivot and connected to the upper ladder via a fourth pivot defining a fourth horizontal pivot axis about which the pivoting step is pivotable between retracted and extended positions.
申请公布号 CA2891788(A1) 申请公布日期 2016.08.02
申请号 CA20152891788 申请日期 2015.05.15
申请人 UNVERFERTH MANUFACTURING COMPANY, INC. 发明人 PETERSEN, BRIAN JAMES
分类号 A01D90/12;B60P1/00;E06C5/26 主分类号 A01D90/12
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