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 |
US2016221510(A1) |
申请公布日期 |
2016.08.04 |
申请号 |
US201514711235 |
申请日期 |
2015.05.13 |
申请人 |
UNVERFERTH MANUFACTURING COMPANY, INC. |
发明人 |
PETERSEN Brian James |
分类号 |
B60R3/02;E06C5/44;B62D63/08;B62D33/02 |
主分类号 |
B60R3/02 |
代理机构 |
|
代理人 |
|
主权项 |
1. A farm implement for holding a farm product, the farm implement comprising:
a container; and a ladder for climbing in relation to the container, the ladder including:
an upper ladder portion having upper and lower ends, the upper end of the upper ladder portion being 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;a lower ladder portion having first and second ends, the first end of the lower ladder portion being 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 having an outer end pivotably connected to the lower end of the upper ladder portion via a third pivot defining a third horizontal pivot axis; andthe upper ladder portion including 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. |
地址 |
Kalida OH US |