Chairs and seats – Headrest – Angularly movable about horizontal axis
Patent
1996-08-22
1997-10-28
Nelson, Jr., Milton
Chairs and seats
Headrest
Angularly movable about horizontal axis
297DIG1, A47C 736
Patent
active
056810881
ABSTRACT:
A headrest of the type rotatable forwards and backwards relative to a headrest stay, which comprises a trim cover assembly of a box-like configuration, a frame disposed in the trim cover assembly, the frame being rotatably connected to the headrest stay, with the headrest stay passing through the trim cover assembly, and a foam cushion member which is formed by a foaming process together with the frame within the trim cover assembly. The trim cover assembly includes a pair of folded extensions folded generally at a right angle therefrom and extending inwardly thereof, which are defined at a point where the headrest stay passes through the trim cover assembly. Such pair of folded extensions have, defined therein, openings designed not only to prevent leakage of a liquid foaming base material from the trim cover assembly during the foaming process, but also allow the fore-and-aft rotation of headrest relative to the headrest stay. The folded extensions are effective in receiving a full pressure at both sides thereof from an outward expanding mass of foam cushion member during the foaming process, to provide a positive closing of the folded extensions and openings.
REFERENCES:
patent: 3675970 (1972-07-01), Bereday
patent: 4849046 (1989-07-01), Kanagawa et al.
patent: 4883318 (1989-11-01), Adachi
patent: 5261726 (1993-11-01), Yanagishita
patent: 5316372 (1994-05-01), Amner
patent: 5478136 (1995-12-01), Takeuchi et al.
Jr. Milton Nelson
Tachi-S Co. Ltd.
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