Method of making vehicle sunroofs

Details Method of making vehicle sunroofs Method of making vehicle sunroofs

1988-04-04

1989-03-28

Echols, P. W.

Metal working

Method of mechanical manufacture

Assembling or joining

29521, 296216, 296218, B21D 3900

Patent

active

048151947

ABSTRACT:
A method of manufacturing a rectangular frame for a vehicle sunroof in which first and second straight metal profiles (38, 40) are assembled to form a frame stock assembly which is bent at intervals along its length to form the frame. The profiles are arranged as radially outer and inner components, respectively, in the plane of the bend and are coupled by means of a web (42) of the inner component (40) engaging in a slot (44) in the outer component (38). The profiles are assembled together by sliding the web longitudinally along the slot, and interengaging surfaces (43, 45) remain free to slide against one another during bending of the assembly. The profiles are assembled prior to shaping the frame. During bending the profiles can slide relative to one another reducing deformation occurring at the bend and allowing the frames to be formed with tighter bends at the corners than has previously been possible.

REFERENCES:
patent: 3579804 (1971-05-01), Slan
patent: 3737980 (1973-06-01), Kotkins
patent: 4585269 (1986-04-01), Lievesley
patent: 4666206 (1987-05-01), Hough

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