A - Human Necessities – 47 – C
Patent
A - Human Necessities
47
C
A47C 5/04 (2006.01)
Patent
CA 2401157
A metal frame for chairs with tubular elements, comprising two inverted U- shaped elements (10), which form the legs, two L-shaped elements (11), which form the support for the seat and the back and are each arranged next to one of the preceding elements, and two rod-like cross-members (12), which are arranged in a lower region so as to join portions of the inverted U shaped elements and of the L-shaped elements. The cross-members (12) are joined to the other elements by projection welding at pairs of protrusions (13) determined by corresponding recesses (14) in the cross-section, obtained by means of a flattening plastic deformation.
L'invention concerne un cadre métallique pour chaises avec éléments tubulaires, comprenant deux éléments (10) en forme de U inversé, formant les jambes, deux éléments (11) en forme de L, formant le support du siège et du dossier et qui sont chacun disposés à côté d'un des éléments précédents, et deux éléments transversaux (12) en forme de tige, disposés dans une partie inférieure de façon à joindre des portions des éléments en U inversé et des éléments en forme de L. Les éléments transversaux (12) sont joints aux autre éléments par soudage par bossages de paires de protubérances (13) déterminées par des creux (14) correspondants dans la section transversale, obtenus au moyen d'une déformation plastique d'aplatissement.
Blake Cassels & Graydon Llp
Cerantola S.r.l.
LandOfFree
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