AN ADAPTER ELEMENT, A FILTER CARTRIDGE, AN AIR FILTER DEVICE, A METHOD FOR REPLACING A FILTER CARTRIDGE OF AN AIR FILTER DEVICE BY ANOTHER FILTER CARTRIDGE

In order to further develop an air filter device (100), comprising a base plate (10) with a plurality of spaced-apart flow openings (12a, 12b, 12c, 12d) and a plurality of filter cartridges (20a, 20b, 20c, 20d; 20a', 20b', 20c', 20d ) each having a filter medium body (50) comprising at least one gas filter medium, wherein the base plate (10) comprises adjacent to the flow openings (12a, 12b, 12c, 12d) in each case at least one mounting device (14, 16; 16'; 16") for mounting one filter cartridge (20a, 20b, 20c, 20d; 20a', 20b', 20c', 20d') each on the base plate (10), wherein the filter cartridges (20a, 20b, 20c, 20d; 20a', 20b', 20c', 20d') each have at least one counter mounting means (22, 24; 24') corresponding to the mounting device (14, 16; 16'; 16"), which counter mounting means (22) can be brought into operative connection with the respective mounting device (14, 16; 16'; 16") of the base plate (10), in such way, that that assembly of the filter cartridge (20a, 20b, 20c, 20d; 20a', 20b', 20c', 20d') to the base plate (10) is simplified and efficiency of assembly is increased, it is proposed that the mounting device (14) is designed as a snap connection means (14) and the corresponding counter mounting means (22) is designed as a counter snap connection means (22), wherein the snap connection means (14) and the counter snap connection means (22) form together a snap connection (14, 22), and wherein the counter snap connection means (22) of the filter cartridge (20a, 20b, 20c, 20d; 20a', 20b', 20c', 20d') can be brought into operative connection with the snap connection means (14) of the base plate (10) by means of an axial movement plus minus a deviation of 10 degrees from the longitudinal axis (400) of the filter cartridge. Le but de l'invention est de perfectionner un dispositif de filtre à air (100), comprenant une plaque de base (10) avec une pluralité d'ouvertures d'écoulement espacées (12a, 12b, 12c, 12d) et une pluralité de cartouches filtrantes (20a, 20b, 20c, 20d ; 20a', 20b', 20c', 20d') comportant chacune un corps de milieu filtrant (50) comprenant au moins un milieu filtrant de gaz, la plaque de base (10) comprenant adjacent aux ouvertures d'écoulement (12a, 12b, 12c, 12d) à chaque fois au moins un dispositif de montage (14, 16 ; 16' ; 16'') pour monter une cartouche filtrante (20a, 20b, 20c, 20d ; 20a', 20b', 20c', 20d') chacune sur la plaque de base (10), les cartouches filtrantes (20a, 20b, 20c, 20d ; 20a', 20b', 20c', 20d') comportant