Reservoir with a reed switch

摘要

A reservoir, for retaining liquid such as coolant of a radiator of an automobile comprises a container having an opening and a deep portion. A switch case extends in the container, which has a flange at an end portion and a float cover at the other end portion. The flange is mounted on the periphery of the opening so as to suspend the switch case in the container. A reed switch is contained in the switch case. A float having a device for turning one and off the reed switch is slidably contained in the float cover. A tube extends into the container through the flange, through which tube the liquid is supplied into, and removed from the container. A holder is fixed on the float cover, which holds the tube in a fixed position. The flange of the switch case is positioned such that the tip portion of the tube is located at the deepest portion of the container.