Switch device and rubber contact

A switch device, comprising:

• a substrate having at least one fixed contact and an inflow/outflow section provided with at least one through-hole penetrating such that fluid passes through;
• and
• a rubber contact configured to cover the substrate, wherein the rubber contact comprises:
• at least one moving section disposed facing the respective at least one fixed contact, the moving section elastically deforming such that moving contacts corresponding to the respective fixed contacts are capable of contacting/separating;
• an in/out section disposed facing the inflow/outflow section and configured to form a space with the inflow/outflow section;
• a flow path section configured to form a flow path configured to connect the in/out section and the at least one moving section;
• and
• at least one chamber section occupying a portion along a length of the flow path section and having a larger volume along its length than a same length of the flow path section that does not include the chamber section, and having strength such that a shape of a space of the chamber section is maintained,
• wherein no contact is disposed in the flow path section, the in/out section and the chamber section.