B - Operations – Transporting – 60 – N
Patent
B - Operations, Transporting
60
N
B60N 2/48 (2006.01) B29C 44/58 (2006.01) B60N 2/58 (2006.01)
Patent
CA 2184045
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.
Appuie-tête à position réglable d'avant en arrière et constitué d'une enveloppe renfermant un bâti articulé sur un support, lequel traverse l'enveloppe, et d'un coussin en mousse formé sur le bâti dans l'enveloppe. L'enveloppe comporte une paire de rabats repliés à peu près à angle droit vers l'intérieur, à l'endroit où le support traverse l'enveloppe. Ces rabats définissent des ouvertures permettant le mouvement d'avant en arrière de l'appuie-tête sur son support et conçues par ailleurs pour empêcher la fuite du matériau moussant lors de la formation du coussin dans l'enveloppe. Ces rabats se ferment, de même que les ouvertures par lesquelles passe le support, sous la force d'expansion de la mousse lors de la formation du coussin dans l'enveloppe.
Ridout & Maybee Llp
Tachi-S Co. Ltd.
LandOfFree
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