Cable tie having enhanced locking engagement between teeth on abutment wall and ratchet teeth on tongue

摘要

In a tie including an elongated tongue and a locking head having a movable pawl that is hinged at one side of an opening in the locking head across the opening from an abutment surface for, locking engagement with a first set of ratchet teeth on one broad side of the tongue when the tip of the tongue has been inserted through the opening and teeth on the abutment surface for locking engagement with a second set of ratchet teeth on the other broad side of the tongue when the tip of the tongue has been inserted through the opening, locking engagement is enhanced by the locking surface of at least one abutment surface tooth extending toward the apex of such tooth at an angle inclined toward the direction of insertion for locking engagement with a tooth of the second set of ratchet teeth; and by the locking surface of at least one of the second set of ratchet teeth extending toward the apex of such tooth at an angle inclined away from the direction of insertion for locking engagement with an abutment surface tooth.