B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
360/19, 360/39
B32B 3/30 (2006.01) A47C 27/00 (2006.01) A47C 27/14 (2006.01) B29C 44/56 (2006.01) B60N 2/58 (2006.01) B68G 7/00 (2006.01)
Patent
CA 1238994
ABSTRACT OF THE DISCLOSURE A trim cover assembly forming the surface of a vehicle seat such as an automotive seat is disclosed which comprises a three-layer lamination composed of a thermally weldable covering material, a wadding formed of a thermally weldable foam material and a wadding cover. In the trim cover assem- bly, the three-layer lamination is pressurized and heated by a high frequency welding machine to form a plurality of re- cessed grooves in one or more main bodies of the trim cover assembly and at the same time to provide a plurality of joint portions, which are formed by collapsing the above-mentioned three elements of the trim cover assembly, along the ends of the trim cover assembly lying in the extensions of the re- cessed grooves, so that the intersections of the recessed grooves and joint portions are regularly folded to facilitate the positive and fine welding of other component of the trim cover assembly to the joint portions.
490491
Ridout & Maybee Llp
Tachikawa Spring Co. Ltd.
LandOfFree
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