A chain and lever post puller system for pulling 2 inch by 4 inch stakes from the ground. The apparatus may also pull round posts or tee-posts with a minimum of effort and with no prior digging. The chain and lever post puller system is a first class lever, requires no heavy equipment or hydraulics, and is easily transportable by hand. The puller comprises a vertical column to which the pivot lever is removably connected via a hinge, which also forms the fulcrum for the pivot lever. A first end of a chain is attached opposite the handle to the end of the pivot lever, and a self-tightening post grip is attached to the second end of the chain. A downward force is applied to the proximate end of the pivot lever when the post grip is attached to a stake to remove the stake via mechanical advantage.
Chain and lever post puller systems
2021-02-23
Patent
Elektronische Ressource
Englisch
IPC: | E04H Gebäude oder ähnliche Bauwerke für besondere Zwecke , BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES / B25B TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING , Werkzeuge oder Werkbankvorrichtungen zum Befestigen, Verbinden, Lösen oder Halten, soweit nicht anderweitig vorgesehen / B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last |
NTRS | 1994
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