Patent ID: 7331634
Filing Date: 2008-02-19
Classification: B21D,B60N,Y10T

Abstract:
1. A seatframe for an automobile seat, wherein: a top-rail of the seatframe comprises a length of hollow metal tubing; a headrest-support-tube of the seatframe, comprising a length of hollow metal tubing, passes through a through-hole in the top-rail; the top-rail has a tubular wall, including opposed upper and lower portions thereof; the opposed upper and lower portions of the top-rail wall have been pressed together, in such manner as to cause the top-rail to collapse locally, thereby creating a pressed-together zone of the top-rail, in which the upper and lower portions are pressed together; the through-hole is a hole that has been made right through both the upper and lower portions of the top-rail wall; the pressed-together zone of the top-rail surrounds the through-hole, and forms a margin around the through-hole, the through-hole being defined by inwards-facing hole-walls of the pressed-together zone; the headrest-support-tube has an upper shoulder and a lower shoulder, and the pressed-together zone of the top-rail lies between the upper and lower shoulders; and the opposed upper and lower portions of the top-rail wall have been pressed together into direct touching contact.