US 4,362,194 A · Manually mobile firewood log splitter

Abstract

The device hereof comprises a manually mobile firewood log splitter adapted in the preferred embodiment version to be operable by a single individual upon relocatable movement thereof as needed from one use location to another, which device incorporates as features thereof a wheeled positioning and aligning support frame structure to enable an accurate adjustable placement of the cutting edge of any one of various interchangeable splitting blades at a selected position upon a particular firewood log section to be split, whereupon the operating individual step-mounts a pivotally deflectable spring biased elevating step integral to the support frame structure thus causing downwardly depending leg stancions thereof to engage the ground surface under operator weight and thus frictionally immobilize movement of the log splitting device to thereby effect retention of the set positioning fix of the selected splitting blade cutting edge upon a log section end for commencement of splitting operations, being thereafter accomplished by the operating individual manually elevating an aligned slidable hammer axially along a vertically extending rod and then releasing the hammer in aligned free-fall to strike an intercommunicating splitting blade anvil and thereby effect an accurate and efficient transfer of slidable hammer impact force to the downwardly disposed splitting blade cutting edge in set retained position upon the firewood log section and thus cause a splitting thereof.

Claims10

Dependent claims

A manually mobile firewood log splitter adapted to be displaced from one use location to another by means of a caster mounted rigid supporting frame structure comprised of at least two interconnected horizontally and vertically disposed members provided with a rearwardly projecting set of horizontally spaced handles, said manually mobile firewood log splitter comprising in combination:

(a). a slidable hammer splitter assembly having an interchangeable splitting blade connectably assembled at the lower vertical end of a splitting blade support shaft member provided with an integral vertical displacement guide means therefor, said member and said guide means being vertically moveable perpendicularly through a shaped keyway opening within a structural platform member horizontally disposed in transversely connected assembly between two of said interconnected horizontally disposed members of said rigid supporting frame,
(b). a slidable hammer impact anvil interchangeably connected to said splitting blade support shaft member by insertable engagement of an upper vertical end of said support shaft within a first axially aligned opening provided in the lower side of said slidable hammer impact anvil and secured therein by insertion of a retaining pin through a communicating set of aligned sidewall openings therefor provided respectively within said slidable hammer impact anvil and said upper vertical end of said splitting blade support shaft member whereby said support shaft communicates vertically downwardly from said anvil through said structural platform member shaped keyway opening to said interchangeable splitting blade, and
(c). a slidable impact hammer with an opening therethrough adapted for vertically displaced movement thereof upon a slidable hammer guide shaft connectably assembled at the lower vertical end thereof within a second axially aligned opening provided in the upper side of said slidable hammer impact anvil and upwardly projecting therefrom.

(a). a vertically disposed manually operable hydraulically powered splitting assembly upwardly supported in affixment to a splitting assembly platform member extension in turn supported upon a structural platform member horizontally disposed in transversely connected assembly between two of said interconnected horizontally disposed members of said rigid supporting frame structure said manually operable hydraulically powered splitting assembly having uppermost thereof a hydraulic cylinder provided with a piston extendible vertically downward in connected communication with a piston extension having an aligned vertically spaced plurality of openings provided therein and adapted to be insertably received within a splitting blade support shaft tubular section provided with a corresponding aligned vertically spaced plurality of openings therein adapted to receive an interchangeable splitting blade connectably assembled at the lower vertical end thereof,
(b). an internal vertical displacement guide means for said tubular section of said splitting blade support shaft said guide means and said tubular section being vertically moveable perpendicularly through a shaped keyway opening within a structural platform member horizontally disposed in transversely connected assembly between two of said interconnected horizontally disposed members of said rigid supporting frame, and
(c). an elevating step pivotally assembled between two of the interconnected vertically disposed members of said rigid supporting frame said step maintained by a connecting tension spring means in a normally spring biased pivotally upward disposition.

Dependencies are inferred from the claim text.

Manually mobile firewood log splitter

Life of this patent

Manually mobile firewood log splitter

Life of this patent

Abstract

Claims10