Air supply device

Abstract

An air supply device comprises a pump and a flow path switching unit. The pump is configured to supply air. The flow path switching unit includes a pedestal part forming a flow path from the pump to at least one object, a rotating part rotatably provided with respect to the pedestal part to switch the flow path, and a sheet member disposed between the pedestal part and the rotating part. The sheet member has a first layer and a second layer that are stacked in a direction directing from the rotating part to the pedestal part. The first layer has a smaller elastic modulus than the second layer. The second layer has a smaller friction coefficient than the first layer.

Dependencies are inferred from the claim text.