Invention Application
- Patent Title: Farm Implement with Retractable Ladder
- Patent Title (中): 农业实施与伸缩梯
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Application No.: US14711235Application Date: 2015-05-13
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Publication No.: US20160221510A1Publication Date: 2016-08-04
- Inventor: Brian James PETERSEN
- Applicant: UNVERFERTH MANUFACTURING COMPANY, INC.
- Applicant Address: US OH Kalida
- Assignee: UNVERFERTH MANUFACTURING COMPANY, INC.
- Current Assignee: UNVERFERTH MANUFACTURING COMPANY, INC.
- Current Assignee Address: US OH Kalida
- Main IPC: B60R3/02
- IPC: B60R3/02 ; E06C5/44 ; B62D63/08 ; B62D33/02

Abstract:
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.
Information query