US 11,945,596 B2
Method for producing an alveolar soundproofing structure including a diaphragm, and alveolar soundproofing structure obtained
Alain Porte, Toulouse (FR); Jacques Lalane, Toulouse (FR); Florian Ravise, Toulouse (FR); and Franck Dobigeon, Toulouse (FR)
Assigned to Airbus Operations SAS, Toulouse (FR)
Filed by Airbus Operations SAS, Toulouse (FR)
Filed on May 26, 2021, as Appl. No. 17/330,598.
Claims priority of application No. 2005676 (FR), filed on May 29, 2020.
Prior Publication US 2021/0371118 A1, Dec. 2, 2021
Int. Cl. B64D 29/00 (2006.01); B29C 65/00 (2006.01); B29C 65/48 (2006.01); B29L 31/30 (2006.01); B64D 33/02 (2006.01); G10K 11/162 (2006.01); G10K 13/00 (2006.01)
CPC B64D 29/00 (2013.01) [B29C 65/48 (2013.01); B29C 66/30325 (2013.01); B29C 66/47 (2013.01); G10K 11/162 (2013.01); G10K 13/00 (2013.01); B29K 2995/0002 (2013.01); B29L 2031/3076 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A method for producing an alveolar soundproofing structure comprising:
providing the alveolar structure which comprises at least one cell which has a basic cross section of any shape and a height, and a perforated membrane which comprises at least one hole, the perforated membrane being arranged at a first side of the alveolar structure,
covering at least the cell, and the hole opening into the cell;
providing a diaphragm, comprising a membrane which comprises at least one acoustic outlet;
providing an insertion tool, comprising an end piece that further comprises an external lateral wall;
inserting a portion of the membrane including the acoustic outlet into the hole of the perforated membrane with the external lateral wall of the insertion tool contacting a surface of the diaphragm and a step of pressing the diaphragm into the cell with the perforated membrane becoming deformed; and
a step of fixing the diaphragm to the perforated membrane.