(19)
(11) EP 0 057 471 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
12.01.1983 Bulletin 1983/02

(43) Date of publication A2:
11.08.1982 Bulletin 1982/32

(21) Application number: 82100798

(22) Date of filing: 03.02.1982
(84) Designated Contracting States:
AT BE CH DE FR GB IT LI NL SE

(30) Priority: 04.02.1981 US 231281

(71) Applicant: SIGNODE CORPORATION
 ()

(72) Inventor:
  • Annis, James R., Jr.
     ()

   


(54) Method and apparatus for forming and tensioning a strap loop about a package


(57) A method and apparatus are provided for forming a strap loop and securing it about an article (P). The strap free end is pressed against a guide surface (224) and moved in a path to form a primary strap loop (LP) while permitting the primary strap loop (Lp) to twist off of the guide surface (224). With the free end of the strap (S) held against further movement, the trailing portion of the strap (S) is fed to expand the loop to a predetermined larger size. The article (P) is inserted in the loop (LF) and the trailing portion of the strap (8) is withdrawn to tighten the loop (LF) about the package (P). The trailing portion of the strap (S) is severed from the tightened strap loop (LF) and the overlapping portions of the strap (S) are then sealed by a friction-fusion weld.






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