Patent ID: 6772798
Filing Date: 2004-08-10
Classification: B65B

Abstract:
A strapping machine for forming a seal between two portions of strapping material and cutting an upper layer of the strapping material without impinging a lower layer of the strapping material, comprising:a strapping machine body having a shaft aperture formed therein, the body further including first and second fastener apertures formed in the body adjacent the shaft aperture; an eccentric shaft including first and second shaft sections integral with one another, the first shaft section defining a primary longitudinal axis of rotation, the second shaft section being eccentric relative to the first shaft section, and defining a secondary axis of rotation spaced from and parallel to the primary axis of rotation, the first shaft section being positioned in the shaft aperture for rotation therein, the first shaft section having a key extending from an end thereof; a fixed support and a movable support, the movable support including a cutter mounted thereto, the movable support being movable away from and toward the fixed support to form the seal and cut the upper layer of strapping material, the movable support being movable toward the fixed support to a define desired clearance therebetween; an actuating lever rotatable about the eccentric, second shaft section, the actuating lever being operably connected to the movable support for moving the movable support toward and away from the fixed support; and a shaft securing member having a key receiving aperture therein configured for engagement with the shaft key in only one orientation, the shaft securing member being fastenable to the body to secure the shaft in a desired orientation, the shaft securing member having at least one fastener opening therein for alignment with one of the first and second apertures in the strapping machine body for receiving a fastener therethrough, wherein the shaft is rotated to a position to set the desired clearance between the movable and fixed supports and wherein the shaft securing member is engaged with the shaft and the strapping machine body to secure the shaft at that rotated position, and wherein the shaft is removable from the body and replaceable only at that rotated position.