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Joint structure composed of flexible tubing and a handling apparatus comprising such a joint structures

  • US 5,137,013 A
  • Filed: 06/26/1991
  • Issued: 08/11/1992
  • Est. Priority Date: 06/29/1990
  • Status: Expired due to Term
First Claim
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1. A joint structure consisting of flexible tubing and another member;

  • the flexible tubing is constructed of a metal wire element wound in to a coil;

    the joint structure comprises;

         1) a welded joint joining the end of the outer peripheral surface of the flexible tubing to the end of the other member by welding all or part of the joint; and

         2) spot welds joining together adjoining turns of the coil in the vicinity of the welded joint by irradiating a laser beam onto a number of separate spots extending over the adjoining turns.

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