Formed tube with formed wire rivet

摘要

A method performed and apparatus formed to fabricate an Isofix latch wire arrangement bends an elongated strip about an open profile to form an elongated tubular member, radially penetrating the member with wires across the open profile, and forming enlarged portions on the legs. The enlargements engage opposite sides of the tube to complete abutment of the strip edges to close the profile and join the wires as rivets to the tubular member formed.

主权项

1. A method for making a latch ring on an elongated tubular support comprising:
providing a latch wire having two spaced-apart legs separated by a transverse portion, each leg extending from a respective end of the transverse portion to a wire end; disposing a first collar around each leg between the transverse portion and the respective wire end; forming an elongated tubular member by bending an elongated strip of sheet material to position longitudinal edges of the strip at adjacent positions about an open profile, the adjacent longitudinal edges defining an open seam of the tubular member; penetrating a first surface and a second surface facing opposite the first surface of the tubular member with the legs of the latch wire such that each first collar engages the first surface and the legs extend through the open profile and the wire ends protrude externally from the second surface; and pressing an enlarged head located at the wire end of each leg of the latch wire against the second surface to force the longitudinal edges into abutment and secure the latch wire to the tubular member.