Abstract: In a tie including an elongated tongue and a locking head having a movable pawl that is hinged at one side of the opening of the locking head across the opening from an abutment wall for locking engagement with a set of ratchet teeth on the tongue when the tip of the tongue has been inserted through the opening, the abutment wall is enhanced for withstanding a force that would tend to bow the abutment wall when the pawl forces the tongue against the abutment wall in response to a pulling force applied to the tongue in a direction opposite to the direction of insertion, but does not require as much material as would be required for an abutment wall that merely had increased thickness and, when the tie is made by injection molding, the abutment wall is not significantly subject to deformation when the injected plastic material cools.

Abstract: A cable tie that includes an elongated tongue with two ends and two broad sides, a locking head at one end of the tongue, a tip at the other end of the tongue, and a set of ratchet teeth extending along one broad side of the tongue, wherein the locking head has sides defining an opening for receiving the tip of the tongue, the sides including a movable pawl that is hinged at one side of the opening and an abutment surface that is at least in part directly opposite across the opening from the pawl, and wherein the pawl has at least one pawl tooth disposed for engaging the set of ratchet teeth when the tip of the tongue has been inserted through the opening with the set of ratchet teeth facing the pawl, is injection molded by a method including the steps of (a) providing a mold that includes mold parts defining a cavity in the general shape of the tie, wherein one of the mold parts includes a core section defining a surface of the pawl that includes the at least one pawl tooth and at least a part of the abutmen

Abstract: A cable tie having a tongue with ratchet teeth on opposite broad sides of the tongue and two stationary teeth on an abutment surface opposite a hinged pawl within a locking head opening is injection molded by combining a first mold part defining a portion of a mold cavity that forms a first set of ratchet teeth on the one broad side of the tongue and a second mold part that defines a portion of the mold cavity that forms a second set of ratchet teeth on the other broad side of the tongue. The second mold part includes a core that defines at least a portion of the mold cavity that forms the opening in the locking head; and the first mold part is combined with the core of the second mold part at an interior parting surface that is remote from the portion of the mold cavity that forms the apexes of the stationary teeth. The solidified tie is ejected from the opened mold without separating the mold parts at any portion of the mold cavity that forms an apex of the stationary teeth.

Abstract: A cable tie that includes an elongated tongue with two ends and two broad sides, a locking head at one end of the tongue, a tip at the other end of the tongue, and a set of ratchet teeth extending along one broad side of the tongue, wherein the locking head has sides defining an opening for receiving the tip of the tongue, the sides including a movable pawl that is hinged at one side of the opening and an abutment surface that is at least in part directly opposite across the opening from the pawl, and wherein the pawl has at least one pawl tooth disposed for engaging the set of ratchet teeth when the tip of the tongue has been inserted through the opening with the set of ratchet teeth facing the pawl, is injection molded by a method including the steps of (a) providing a mold that includes mold parts defining a cavity in the general shape of the tie, wherein one of the mold parts includes a core section defining a surface of the pawl that includes the at least one pawl tooth and at least a part of the abutmen

Abstract: A cable tie having a tongue with ratchet teeth on opposite broad sides of the tongue and two stationary teeth on an abutment surface opposite a hinged pawl within a locking head opening is injection molded by combining a first mold part defining a portion of a mold cavity that forms a first set of ratchet teeth on the one broad side of the tongue and a second mold part that defines a portion of the mold cavity that forms a second set of ratchet teeth on the other broad side of the tongue. The second mold part includes a core that defines at least a portion of the mold cavity that forms the opening in the locking head; and the first mold part is combined with the core of the second mold part at an interior parting surface that is remote from the portion of the mold cavity that forms the apexes of the stationary teeth. The solidified tie is ejected from the opened mold without separating the mold parts at any portion of the mold cavity that forms an apex of the stationary teeth.

Abstract: A nylon cable tie having a head and a strap terminating in a tip is formed in a mold cavity defined between a first mold part combined wish a second mold part by injecting molten nylon material into the mold cavity through an insulated runner system and a gate that converges from the runner system toward the mold cavity and does not have a hot tip adjacent thereto. The mold parts are separated while retaining a portion of the head in a head region in the first mold part and a portion of the tip in a tip region in the second mold part, in order to separate the head from the second mold part, to separate the tip from the first mold part, and to separate a major portion of the strap from the first and second mold parts. The mold parts are further separated while retaining said portion of the head in the head region to thereby remove said portion of the tip from the second mold part. The head is ejected from the head region by protracted ejector pins that penetrate the head region from within the first mold part.

Abstract: In an injection molded cable tie that includes an elongated strap with an adjacent locking head at one end of the strap, a tip at the opposite end of the strap and ratchet teeth on one side of the strap, wherein the locking head defines an opening for allowing the tip end of the strap to be pulled through said opening and includes a pawl having teeth for engaging the ratchet teeth to lock the strap in the locking head after the tip end of the strap has been pulled through said opening, the pawl is thick enough so that when the strap is under normal tension in a locked position the pawl will not bend to such an extent that the pawl teeth lose engagement with the ratchet teeth and enable the strap to be at least partially released from its locked position, one side of the pawl includes the pawl teeth and the same side and/or the opposite side of the pawl includes at least one hollow section formed by the mold.