Seat back frame

Details Seat back frame Seat back frame

B - Operations, Transporting

60

N

B60N 2/20 (2006.01) B60N 2/68 (2006.01)

Patent

CA 2226285

There is provided a seat back frame in which the same frame can be used for both of single reclining and double reclining, and the deformation of side frame can be controlled against a backward load. The seat back frame is composed of bilaterally symmetrical side frames, an upper pipe welded to both upper end portions of the side frames, and a lower pipe welded to the lower portions of the side frames. The side frames have a wider-in-front shape such that the width is greater on the front side than on the rear side. On the face of the side frame, triangular planes are provided so as to be vertically adjacent to each other, and the common side of the adjacent triangles is bent.

Bâti de dossier utilisable en simple inclinaison et en double inclinaison avec bâti latéral dont la déformation est contrôlable en fonction d'une poussée vers l'arrière. Le bâti de dossier se compose de deux bâtis latéraux bilatéralement symétriques, d'un tuyau supérieur soudé aux deux bouts supérieurs des bâtis latéraux et d'un tuyau inférieur soudé aux parties inférieures des bâtis latéraux. Les bâtis latéraux ont une forme évasée vers l'avant de sorte que la largeur est plus grande du côté avant que du côté arrière. En façade des bâtis latéraux, il y a des plans triangulaires verticalement adjacents l'un à l'autre, et le côté commun des triangles adjacents est plié.

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