B - Operations – Transporting – 65 – B
Patent
B - Operations, Transporting
65
B
156/32.1
B65B 13/02 (2006.01) B29C 65/06 (2006.01) B65B 13/22 (2006.01) B65B 13/32 (2006.01)
Patent
CA 1046396
S P E C I F I C A T I O N TO ALL WHOM IT MAY CONCERN: BE IT KNOWN that I, ROBERT J. KOBIELLA, a citizen of the United States, residing at 3802 Pheasant Drive, Rolling Meadows, in the County of Cook and State of Illinois, have in- vented a new and useful improvement in AUTOMATIC STRAPPING MACHINE of which the following is a specification. Abstract of the Disclosure An automatic strapping machine is disclosed wherein strap is fed at a high rate of speed about a package so as to form a loop which is then tensioned and sealed. The loop is formed so that the leading end of the strap is overlapped by a trailing end of the strap and the resulting overlapped strap portions are joined together so as to form a seal which is not susceptible to snagging. The distal end of the overlapping strap end portion is urged against and is moved back and forth relative to an underlying strap portion in tension at a high rate of speed so as to generate heat therebetween and to form a friction-fused joint. During joint formation the strap loop about the package is in tension, but the strap end portion over- lapping the loop is relaxed, i.e., not in tension. Sealing energy generating means is adapted to engage the distal end of the overlapping strap end portion and comprises a pivotable anvil and a rotatable - oscillatable hammer adapted to receive overlapping strap regions therebetween, and an oscil- lating motor means for the hammer which engages the loop-over- lapping strap end portion and rubs the overlapping end portion against the underlying strap region at a rate sufficient to melt an interface region therebetween and to form a friction-fused joint when energized by the oscillating motor means.
265039
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