US 6,314,599 B1Granted

Fastener pulling tool

OwnerPatrick James Hayinventor

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Abstract

A staple pulling plier of the type consisting of a pair of pivoting members having handles and jaws forming a head portion. The head portion has opposite side faces, and the jaws in a closed position define a substantially continuous post engaging top ridge. Pincer points are provided on the jaws adjacent the top ridge and are moved to a closed staple grasping position on closure of the handles. A fulcrum member is formed integrally with the head portion and projects from one of the opposite side faces of the head portion, the fulcrum member defining an upper edge extending in a plane substantially normal to the post engaging top ridge of the jaws. When the bight of a staple is held by the pincer points, the two legs of the staple and the joining bight are in a plane normal to the post engaging top edge of the head portion. When the staple has been driven into a post to secure a horizontal strand of the fence, its plane is usually vertically disposed. Thus, as the plier is swung in a direction coinciding with the plane of the staple, the upper edge of the fulcrum member engages the post, and pressure can be applied in an up or down direction to more effectively withdraw the staple.

Claims4

Dependent claims

A plier for pulling staples from posts and the like, the staples being of the type including a transverse bight portion joining a pair of spaced leg portions, said plier comprising:

a pair of members connected in scissor-fashion for pivotal operating action in a plane normal to a pivot axis of said members,
said members each including a jaw and a handle portion,
said jaws of said pair of members forming a head portion above said axis and opposite of said pivot axis to said handles portions,
said head portion having opposite side faces formed by said jaws and disposed in substantially parallel planes normal to said axis,
said jaws in a closed position defining a substantially continuous post engaging top edge,
said jaws having opposed inner surfaces defining pincer points adjacent said top edge for movement toward engagement on closure of said handles to thereby grasp said bight of said staple thereunder;
said jaws having side edges curving smoothly upwardly and inwardly to said opposed inner surfaces of said jaws thereby forming said top edge in the form of continuous ridge in a plier closed condition,
said continuous ridge being in the form of a substantially semi-circular top outline of said head portion,
said plier including a fulcrum means formed integrally with said head portion and projecting laterally from one of said opposite side faces,
said fulcrum means including a pair of fulcrum members, one each being integrally formed with one of said jaws on a common side face of said head portion,
said fulcrum means defining upper edges extending in a plane substantially normal to said post engaging top edge of said jaws, so that on swinging movement of said handle portions in a plane normal to said top edge leverage is provided for pulling a staple grasped by said pincer points, and
a single hammer head integrally formed with one of said jaws and projecting from the side face of said head portion opposite to said one of said opposite side faces of said head portion,
said hammer head being disposed on an axis parallel to but disposed vertically above the pivot axis of the pair of connected members between said pivot axis and said pincer points.

10 more elements

A fastener pulling tool for withdrawing staples, nails and the like from articles such as wooden posts and planks, said tool being of the type having:

a pair of members connected in scissor-fashion for pivotal operating action in a plane normal to a pivot axis of said members,
said members each including a jaw and a handle portion,
said handles portions extending away from said pivot axis and terminating at a lower handle end of said tool,
said jaws of said pair of members forming an upper head portion opposite of said pivot axis to said handle portions,
said head portion having opposite side faces formed by said jaws and disposed in substantially parallel planes normal to said pivot axis,
said jaws having opposed inner surfaces for movement toward each other on pivotal closure of said handle portions and defining fastener grasping pincer points adjacent a top ridge of said head portion,
said tool including a fulcrum means formed integrally with said head portion and projecting in a lateral direction from one of said opposite side faces,
said fulcrum means being formed by a pair of fulcrum members one each being integrally formed with one of said jaws on a common side face of said head portion and projecting in a substantially lateral direction from said common side,
said pair of fulcrum members together having a hammer claw-like configuration defining a fastener grasping opening therebetween as said tool is moved to a closed condition,
said jaws in said closed condition defining a substantially continuous top edge;
said fulcrum members curving outwardly from immediately below said top ridge and downwardly toward said handle end of said tool to thereby provide curving upper surfaces for engaging said article as said tool is rocked to withdraw said fastener from said article, and
a hammer head formed integrally with one of said jaws and projecting outwardly from the side face of said head portion opposite to said one of said opposite side faces said hammer head having an axis parallel to the pivot axis of said pair of members and disposed above said pivot axis on a line extending between said pivot axis and said pincer points.

9 more elements

Dependencies are inferred from the claim text.