Method for making a skip body with a concave cross section

Details Method for making a skip body with a concave cross section Method for making a skip body with a concave cross section

B - Operations, Transporting

21

D

B21D 5/06 (2006.01) B21D 11/02 (2006.01) B60P 1/28 (2006.01) B62D 33/00 (2006.01)

Patent

CA 2247525

A method for forming a one-piece skip body with a concave cross section from a large metal sheet (1) by imparting an approximate cross section to the sheet using shaping means (2) is disclosed. According to the method, the approximate cross section is maintained while a sealing plate (10) is secured to one end (9) and a stiffening reinforcement member (13) shaped according to the final cross section is attached to the other end (12). The longitudinal edges are stiffened then the most curved areas are mechanically treated and the shaping means (2) are released. The method is relevant to skip manufacturers and more generally to builders of utility vehicles.

Le procédé permet de former d'une seule pièce un corps de benne à profil concave à partir d'un grand format (1) de tôle en imposant un profil voisin par des moyens de conformation (2), en solidarisant, tout en maintenant ce profil voisin, une plaque d'obturation (10) à l'une des extrémités (9) et à l'autre extrémité (12) un renfort (13) de rigidification conformé selon le profil définitif, puis après avoir rigidifié les bords longitudinaux, de procéder à un traitement mécanique des zones à forte incurvation et de lâcher la prise des moyens de conformation (2). Cette invention concerne les constructeurs de bennes et plus généralement les carrossiers de véhicules utilitaires.

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