Ring fastener package for movable magazine of a portable tool

A package of ring fasteners comprising

• a multiplicity of similar ring fasteners each being made of a short length of metal wire of no smaller than 0.101 inch diameter material bent to provide a central bight portion and legs extending from opposite ends of said central bight portion terminating in spaced free ends,
• said multiplicity of ring fasteners being arranged in a packaged orientation wherein the ring fasteners are in a row with the bight portions and legs thereof aligned in the direction of extent of the row,
• each ring fastener in said packaged orientation having the bight portion and each leg thereof extending generally transversely to the direction of extent of the row in abutting relation to a bight portion and corresponding leg respectively of an adjacent leading ring fastener in the row except for a leading ring fastener disposed forwardmost in the row,
• the configuration of each ring fastener in said packaged orientation being such that when present as the leading ring fastener in the row (1) a leading leg of the legs thereof is disposed forwardly in the direction of extent of the row with respect to a trailing leg of the legs thereof so that the free ends of the leading and trailing legs are disposed substantially on opposite sides of a plane perpendicular to the direction of extent of the row and (2) the leading and trailing legs thereof include opposed jaw engaging portions offset in the direction of extent of the row and spaced apart transversely with respect to the direction of extent of the row a distance greater than the spacing between the free ends of said legs, and
• means for releasably retaining said ring fasteners in said packaged orientation enabling the ring fasteners in said packaged orientation to be handled and inserted as a unit into a tool magazine capable of being moved transversely from (1) a cooperating position wherein the leading ring fastener of the row interfaces with a pair of tool jaws movable toward and away from one another into (2) a spaced non-interfering position during which the ring fasteners other than said leading ring fastener retained in said packaged orientation are separated from the leading ring fastener in interfaced relation with the pair of jaws enabling the pair of jaws to be moved toward one another so as to move the free ends of the legs of the interfaced leading ring fastener toward one another substantially along opposite sides of said perpendicular plane until the leading ring fastener is crimped into a closed ring configuration wherein free end portions of the legs thereof are disposed generally in side-by-side relation,
• each of said ring fasteners being configured so that the aforesaid perpendicular plane intersects the entire bight portion thereof and a substantial part of each leg extending therefrom, the amount of material of said leading leg forwardly of the perpendicular plane progressively increasing in a direction toward the free end thereof and the amount of material of the trailing leg rearwardly of the perpendicular plane increasing in a direction toward the free end thereof.

A manually actuated portable tool operable to handle a package of ring fasteners and to crimp successive ring fasteners from the package into a closed formation around elements to be retained together, such as a fence cable element and a chain link fence link element,

• said package of ring fasteners comprising a multiplicity of similar ring fasteners each being made of a short length of metal wire of no smaller than 0.101 inch diameter material bent to provide a central bight portion and legs extending from opposite ends of the central bight portion terminating in spaced free ends, the multiplicity of ring fasteners being arranged in a packaged orientation wherein the ring fasteners are in a row with the bight portions and legs thereof aligned in the direction of extent of the row, each ring fastener in the packaged orientation having the bight portion and each leg thereof extending generally transversely to the direction of extent of the row in abutting relation to a bight portion and corresponding leg respectively of an adjacent leading ring fastener in the row except for a leading ring fastener disposed forwardmost in the row, the configuration of each ring fastener in the packaged orientation being such that when present as the leading ring fastener in the row (1) a leading leg of the legs thereof is disposed forwardly in the direction of extent of the row with respect to a trailing leg of the legs thereof so that the free ends of the leading and trailing legs are disposed substantially on opposite sides of a plane perpendicular to the direction of extent of the row and (2) the leading and trailing legs thereof include opposed jaw engaging portions offset in the direction of extent of the row and spaced apart transversely with respect to the direction of extent of the row a distance greater than the spacing between the free ends of said legs, said portable tool comprising
• a frame providing manually grippable surfaces enabling an operator to manually operate the tool,
• a pair of jaws mounted on said frame for movement from a ring fastener interfacing position toward one another through a ring fastener crimping stroke into a crimping position and from said crimping position away from one another through a return stroke into said ring fastener interfacing position,
• a magazine assembly for receiving and supporting a ring fastener package therein for biased movement forwardly in the direction of extent of the ring fastener row thereof,
• said magazine assembly being elongated in a longitudinal direction corresponding with the direction of extent of the ring fastener row of the package received and supported therein and being mounted on said frame for movement in a direction transverse to said longitudinal direction between a cooperating position with respect to said pair of jaws and a non-interfering position with respect to said pair of jaws,
• said pair of jaws having leading and trailing leg engaging surfaces for interfacing with the leading and trailing legs of the leading ring fastener of the ring fastener package,
• said leading and trailing leg engaging surfaces including (1) longitudinally offset leading and trailing stop surface portions facing in a longitudinal direction toward said magazine assembly when in said cooperating position for engaging forward surface portions of the leading ring fastener so as to position the leading ring fastener in interfaced relation with said pair of jaws and (2) longitudinally offset leading and trailing crimping surface portions facing generally transversely toward one another for engaging the jaw engaging portions of the leading and trailing legs of the leading ring fastener during the crimping stroke of the pair of jaws to thereby crimp the leading ring fastener into the closed ring formation,
• said frame including (1) a planar surface transverse to the longitudinal extent of said magazine assembly for engaging the leading ring fastener of the package when said magazine assembly is in said non-interfering position, and (2) a transitional cam surface between said planar surface and said leading crimping surface portion for (A) engaging the leading leg of the leading ring fastener during the last portion of the movement of the magazine assembly into said cooperating position to guide the leading ring fastener under the forward bias thereof into interfaced relation with said pair of jaws and (B) engaging the leading leg of the ring fastener abutting the leading ring fastener during the initial portion of the movement of the magazine assembly out of said cooperating position to cam the leading leg engaged therewith onto said planar surface against the forward bias thereof.