ES8404932A1 - Fixing process for vehicle roof - Google Patents

Abstract

EP--75754 A A bead (12) of adhesive plastics (11) is placed onto an inner rim (9) of the roof bearing surface (3). The roof panel (2) is mounted on the adhesive, so that its outer rim (13) faces the outer rim of the bearing structure. The outer rims are then spot welded together. - The body is subsequently baked at a temp. sufficiently high to permit polymerisation and hardening of the adhesive. The adhesive can be extruded from a nozzle mounted on an arm which moves along the perimeter of the roof gap. (3/3) EPAB- EP--75754 B A bead (12) of adhesive plastics (11) is placed onto an inner rim (9) of the roof bearing surface (3). The roof panel (2) is mounted on the adhesive, so that its outer rim (13) faces the outer rim of the bearing structure. The outer rims are then spot welded together. - The body is subsequently baked at a temp. sufficiently high to permit polymerisation and hardening of the adhesive. The adhesive can be extruded from a nozzle mounted on an arm which moves along the perimeter of the roof gap. (15pp Dwg.No.3/3) - EP--75754 B A process for fixing the roof (2) to a bearing structure (3) of the body (1) of a vehicle, comprising: a first stage of applying a bead (12) of an adhesive plastic substance (11), of determined thickness, onto an inner rim (9) of the said bearing structure (3), facing the said roof (2) and delimiting an upper space (10) of the said bearing structure (3), which space is adapted to be closed by the said roof (2); a second stage of mounting the said roof (2) onto the said bearing structure (3), a lower surface (17) of the said roof (2) being brought into contact with the said bead (12) of adhesive substance (11), and an outer rim (13) of the said roof (2) being positioned in a position facing an outer rim (14) of the said bearing structure (3), disposed outside the said space (10); a third stage of welding the said outer rim (13) of the said roof (2) to the said outer rim (14) of the said bearing structure (3); and a fourth stage of baking the said body (1) at a predetermined temperature for a period of time sufficient to allow the polymerisation and the hardening of the said adhesive substance (11); said process being characterised in that in said second stage said roof (2) is brought into contact with said bead (12) of adhesive substance without interposition of seals, said plastic adhesive substance (11) having a Brooksfield's viscosity comprises between 500,000 and 1,000, 000 centipoises (cP) and said bead (12) having in combination a thickness comprised between 1,5 and 4 mm. (7pp) USAB- US4471519 A A bead of an adhesive plastics substance, of determined thickness, is applied onto the inner rim of the bearing structure, facing the roof. The upper space of the bearing structure to be closed by the roof is defined by this. The roof is mounted onto the bearing structure, a lower surface of the roof being brought into contact with the bead of adhesive substance. - An outer rim of the roof is positioned in a position facing an outer rim of the bearing structure, outside the space. - The outer rim of the roof is welded to the outer rim of the bearing structure, this stage being carried out by electrical spot welders. The body is then baked at a predetermined temp. for a period of time sufficient to allow the polymerisation and the hardening of the adhesive plastics substance.