B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
24/30
B65D 63/10 (2006.01) F16G 11/00 (2006.01) F16G 11/10 (2006.01) F16L 3/233 (2006.01)
Patent
CA 1057483
ABSTRACT OF THE DISCLOSURE The present invention provides a self-locking cable tie for forming a plurality of wires or the like into a bundle, said tie comprising: a stretched elongate flexible strap portion for posi- tioning about said wires or the like and made of a plastic ma- terial whose molecules can be stretch-oriented; a head portion extending from one end of said strap portion, having a strap entrance face and a strap exit face, and having a generally transverse aperture extending from said strap entrance face to said strap exit face for receiving the distal end of said strap portion, said aperture having a pre- determined strap path therethrough; and locking means made of non-plstic material and carried by said head portion and having a free end portion extending into said strap path and toward said strap exit face, said free end portion and said strap portion each having an engageable com- ponent for causing such a high localized stress concentration in said strap portion that said strap portion is pierced by said free end portion, one of said engageable components compri- sing at least one protuberance sharply pointed relative to the other engageable component, said protuberance being positioned to engage said other engageable component prior to engagement of other parts of said one engageable component with said other engageable component whereby upon insertion of the distal end of the strap portion into said aperture from said strap entrance face, the strap portion interferes with and deflects said free end portion to permit tightening of said tie around said wires or the like and whereby said engageable components cause the localized stress concentration in said strap portion upon appli- cation of withdrawal forces to enable said free end portion to pierce said strap portion and prevent retrograde movement of said strap portion.
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