Noise reducing tool and method

Details Noise reducing tool and method Noise reducing tool and method

F - Mech Eng,Light,Heat,Weapons

16

F

267/54

F16F 7/00 (2006.01) G10K 11/16 (2006.01)

Patent

CA 2031069

The present noise reduction system provides a tool and a method to dampen the vibration of sheet material such as a panel, a metal sheet or a skin while performing a manufacturing operation on it, for instance riveting, drilling, etc. This noise reducing tool is held in place by vacuum and thus avoids the disadvantages associated with gluing and mechanical or magnetic fixing devices. This noise reducing tool includes a flexible pad made of a metal back sheet with a vibration damping sheet adhered to it and having an air seal surrounding the damping sheet such that the pad is held against the panel by action of a vacuum intermediate the damping sheet and the panel.

Cette invention concerne un outil et une méthode d'insonorisation d'un procédé de fabrication comportant des étapes d'assemblage à rivets, de perçage, etc. de matériaux en feuille, tôles métalliques ou revêtements d'appareil. L'insonorisation repose sur l'atténuation des vibrations des éléments ci-dessus au moyen d'un outil maintenu en place par dépression plutôt que par collage ou fixation magnétique ou mécanique, techniques qui présentent des désavantages. L'outil objet de l'invention comprend une ventouse souple à corps laminé métallique auquel est collé, côté objet à manutentionner, une plaque d'amortissement des vibrations entourée d'un joint d'étanchéité ayant pour rôle de maintenir la dépression créée entre la dite plaque et l'objet à manutentionner pour rendre les deux solidaires.

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