Filter element for a pneumatic adjusting arrangement

A pneumatic adjusting arrangement for a vehicle seat, said pneumatic adjusting arrangement comprising:

• at least one balloon that is fillable with a pressure medium as an adjusting element;
• at least one fluid line for at least of filling and emptying the at least one balloon;
• and
• a filter element arranged in the fluid line and configured to remove particles entrained in the pressure medium, the filter element comprising:
• a filter chamber fillable with the pressure medium and including at least a first flexible film and a second flexible film connected together along a connecting seam to define the filter chamber;
• and
• a filter medium arranged in the filter chamber and separating the filter chamber into a first chamber portion and a second chamber portion, the filter medium being configured to remove particles from the pressure medium;
• wherein the second chamber portion is configured to receive the pressure medium from the first chamber portion via the filter medium.

A vehicle seat comprising:

• a seat bearing surface;
• and
• a pneumatic adjusting arrangement comprising:
• at least one balloon that is fillable with a pressure medium as an adjusting element;
• at least one fluid line for at least of filling and emptying the at least one balloon;
• and
• a filter element arranged in the fluid line and configured to remove particles entrained in the pressure medium, the filter element comprising:
• a filter chamber fillable with the pressure medium and including at least a first flexible film and a second flexible film connected together along a connecting seam to define the filter chamber;
• and
• a filter medium arranged in the filter chamber and separating the filter chamber into a first chamber portion and a second chamber portion, the filter medium being configured to remove particles from the pressure medium;
• wherein the second chamber portion is configured to receive the pressure medium from the first chamber portion via the filter medium;
• and
• wherein the at least one balloon is arranged below the seat bearing surface for influencing the contour thereof.

A method for producing a filter element for a pneumatic adjusting arrangement, said method comprising:

• providing at least a first film and a second film;
• arranging a filter medium between the first and second films, the filter medium being configured to remove particles from the pressure medium;
• and
• connecting the first and second films together at a connecting seam to define a filter chamber that is separated by the filter medium into a first chamber portion and a second chamber portion, such that pressure medium introduced into the first chamber portion is filtered by the filter medium upon flowing from the first chamber portion to the second chamber portion.