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US 4,784,710 AGranted
Method for manufacturing a vehicle seat
AssigneeTachi-S Co., Ltd.
InventorTadafumi Abe
Life of this patent
Estimating the term…
Abstract
A method of manufacturing a vehicle seat, in which a foam cushion member is placed on an auxiliary support member so that the welding region of the cushion member is positioned horizontally, presenting a flat line, then a covering member is placed on said cushion member, and said covering member and cushion member are welded together by means of ultrasonic welding. In this way, said covering member is uniformly welded to said cushion member.
Claims5
A method of manufacturing a vehicle seat, comprising the steps of:
- placing a foam cushion member of varying thickness on an auxiliary support member of varying thickness inverse to the varying thickness of said cushion member;
- said foam cushion member being flat in its welding region;
- said auxillary support member being adapted to support said foam cushion member so that said welding region of said cushion member is positioned substantially horizontally;
- then, placing a thermally weldable covering member on said welding region of said cushion member;
- applying a pressure against said covering member and said foam cushion member in a downward direction, and
- welding said covering member by means of ultrasound to said welding region of said cushion member, using an ultrasonic welding apparatus.
3 more elements
Dependencies are inferred from the claim text.