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US 3,970,118 AGranted
Rock fastener machine
AssigneeRockaway Corporation
InventorLeroy M. Varga
Life of this patent
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AssigneeRockaway Corporation
InventorLeroy M. Varga
Estimating the term…
In an apparatus for forming loop fasteners on wirebound container blanks wherein wire manipulations are performed on a wire section secured to a container blank to form a loop in the wire and drive the end of the wire into the container blank to perpetuate the loop, first and second crossbars are provided which are respectively vertically reciprocally mounted above and transversely of the path of travel of the container blank with wire manipulating means mounted on the first crossbar including means for bending the wire section into a loop when the first crossbar is in its lowered position and means positioned to be engaged and driven by the second crossbar, during downward movement thereof, for forming a prong in the wire section, after the loop is formed, and driving the prong into the container blank material. The bending means bends the wire over a hook-like extension on a loop bar of the prong forming and driving means, and the latter includes a former bar that engages the end of the wire overlying the hook-like projection and bends it downwardly, in response to downward movement of the second crossbar, to form a prong which is supported on its inside by the hook-like extension and on its other three sides by the walls of a groove in the former bar. A driver bar then drives the formed prong through the face material of the container blank while camming the hook-like extension progressively out of the way.
A prong forming and driving mechanism for use in a loop forming and fastening machine for making wirebound container blanks, said mechanism being adapted to be mounted on a first vertically reciprocal crossbar in the loop forming machine for movement therewith and being operated by a second vertically reciprocal crossbar in the machine, said mechanism including a housing operatively connected to said first crossbar for movement in unison therewith, a wire former bar slidably mounted in said housing for vertical reciprocal movement, a loop bar pivotally mounted on said housing for movement in a transverse vertical plane with respect to said former bar and having a lower end including a hook-like projection arranged to project beneath the free end portion of a binding wire extending beyond said projection from one side of a loop formed in the binding wire, said former bar having a lower end portion including an inner face generally coplanar with the plane of movement of the adjacent inner face of the loop bar and having a vertical groove formed therein for receiving said free end portion of said binding wire;
A prong forming and driving mechanism for use in a loop forming and fastening machine for making wirebound container blanks, said mechanism being adapted to be mounted on a first vertically reciprocal crossbar in the loop forming machine for movement therewith and being operated by engagement with a second vertically reciprocal crossbar in the machine upon downward movement thereof;
Apparatus for forming loop fasteners on wirebound container blanks wherein wire manipulations are performed on a wire section secured to a container blank to form a loop in the wire and drive the end of the wire into the container blank to perpetuate the loop, said apparatus comprising a frame defining a path of travel therethrough for the container blank, first and second crossbars respectively vertically reciprocally mounted in said frame above and transversely of the path of travel of said container blank for movement between upper and lower positions, means for vertically reciprocating said crossbars in accordance with a predetermined sequence, wire manipulating means mounted on said first crossbar above the path of travel of said container blank including means for bending said wire section into a loop when the first crossbar is in its lower position, and means positioned to be engaged and driven by said second crossbar during downward movement thereof for forming a prong in said wire section, after said loop is formed, and driving the prong into the container blank material.
Apparatus for forming loop fasteners on wirebound container blanks wherein wire manipulations are performed on a wire section secured to a container blank to form a loop in the wire and drive the end of the wire into the container blank to perpetuate the loop, said apparatus comprising a frame defining a path of travel therethrough for container blanks;
A prong forming and driving mechansim for use in a loop forming and fastening machine for making wirebound container blanks, said mechanism being mounted in said loop forming machine for vertical reciprocal movement between an upper inoperative position and a lower operating position adjacent the upper face of the container blank, said prong forming and driving mechanism including a vertically extending relatively straight mandrel positioned to be located, in the operative position of said mechanism, above the blank and adjacent one side of the wire;
Dependencies are inferred from the claim text.