Filtering structure, especially particle filter for exhaust gases of an internal combustion engine, and associated exhaust line

Filtration structure (11) comprising:

• at least first and second filtering elements (15A, 15B), each filtering element (15A, 15B) having an inlet face (21) and a discharge face (23), connected to each other by at least three lateral faces (24), said first and second filtering elements (15A, 15B) having respectively a first and second lateral face (24A, 24B) arranged opposite each other;
• and
• a seal (17) connecting said first and second lateral faces (24A, 24B) and extending between said first and second lateral faces (24A, 24B);
• the first lateral face (24A) comprising at least a first region (35A) that does not adhere, or only slightly adheres to said seal (17), and extends opposite a first region (33B) that strongly adheres to said seal (17) of the second lateral face (24B), said first region (34A) that does not adhere or only slightly adheres being delimited by at least a portion of an edge (37) common to the first lateral face (24A) and the discharge face (23);
• characterised in that, in an area adjacent to said common edge (37), the first region (35A) that does not adhere, or only slightly adheres to said seal (17) comprises at least one side (41A) that diverges towards the discharge face (23), said side (41A) extending as far as said common edge (37).