JPS6445237A - Bifurcated pawl body of package opening apparatus - Google Patents

Abstract

PURPOSE:To smoothly take up a bundling member, by a method wherein tapered insert parts are formed to the end parts of the pawl rods of a bifurcated pawl body and taper surfaces are provided to the insert parts on the inside of the pawl rods toward the leading end and taper edges are provided to the back surfaces of the insert parts on the outside of the pawl rods and parallel edges are partially formed to said taper edges. CONSTITUTION:When a package 2 is placed on a feed conveyor 3 to be moved to an opening position 7, a bifurcated pawl body 10 is inserted in the bundling member 4. Since the insert parts 31 of both pawl rods 10a, 10b of the bifurcated pawl body 10 have taper surfaces on the inside thereof and taper edges 34 are provided to the outside back surfaces of the insert parts, the pawl rods advance without biting package to introduce only the bundling member 4 into the gap between the pawl rods of the bifurcated pawl body 10. At this time, even when the bundling member 4a of the lowermost stage binding the package 2 is positioned at the insert parts 31, since parallel edges 36 are partially formed to both sides of the taper edges 34, the bundling member 4d is taken up without being detached from the insert parts 31 when the bifurcated pawl body 10 rotates.