A tubular duct member

Details A tubular duct member A tubular duct member

F - Mech Eng,Light,Heat,Weapons

16

L

F16L 9/17 (2006.01) F16L 9/02 (2006.01) F16L 9/22 (2006.01) F16L 59/147 (2006.01) F24F 13/02 (2006.01)

Patent

CA 2752675

A tubular duct member comprises a plurality of sheet metal panels (10, 12) joined along adjacent longitudinal edges by cooperating folded sheet metal catches (14, 16), the catches being pushed together such that respective detent surfaces (28, 30) on each catch engage behind one another to retain the edges of the sheets together. One of the catches (14) includes a body (36) of resilient material compressed between the catches and biasing the catches apart to maintain the detent surfaces (28, 30) bearing against one another.

La présente invention concerne un élément de conduite tubulaire comprenant une pluralité de panneaux de tôle métallique (10, 12) joints, le long de leurs bords longitudinaux adjacents, par des encliquetages en tôle métallique pliée (14, 16) qui coopèrent, lesdits encliquetages étant poussés les uns contre les autres de telle façon que des surfaces d'arrêt (28, 30), situées sur chacun des encliquetages, viennent en prise les unes derrière les autres et retiennent ainsi ensemble les bords des tôles. Un encliquetage parmi les encliquetages (14) comprend un corps (36) fait d'un matériau élastique comprimé entre les encliquetages et sollicitant les encliquetages pour maintenir les surfaces d'arrêt (28, 30) plaquées les unes contre les autres.

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