System for automatically adjusting contour of vehicle seat uses fluid-filled bubble which has protruding weldable material section around edge for welding to fabric support adapted to seat contour

摘要

The system involves using a fluid-filled volume-changing bubble (1) which has a protruding weldable material section (1b) welded to a fabric support (2) which is or can be adapted to the seat contour : Independent claim describes method for producing automatic adjustment system wherein a bubble made by welding two superposed plastics foils has a protruding part around the edge for welding to the material support.