| 摘要 |
PURPOSE:To enable switching of a damper thermostat for a low temperature chamber to a damper thermostat for a refrigerating chamber by operating a lever regardless of expansion and contraction of a bellows by a projection mounted at one end of the adjust lever to forcedly full open a damper. CONSTITUTION:A lever 4 having a supporting point 5 is formed like a hook 4', and a projection 14-c is bent to the bellows 2 side. The bellows 2 is expanded and contracted according to an excessive change of a heat-sensitive cylinder 3 to turn the lever 4 centering around the supporting point 5. A damper 6 is fixed to the forward end of the lever 4, and the operating value of a damper thermostat is adjusted by changing the screwed amount of a screw 9. When the damper thermostat is for a low temperature chamber, a cam 13 is rotated within a range where the projection 14-c is not brought into contact with a belly portion 4'. When the damper thermostat is for a refrigerating chamber, the cam 13 is rotated in such a manner as to contact the belly portion 4'. Thus, as a controller, the damper thermostat for the low temperature chamber can be switched to the damper thermostat for the refrigerating chamber. |
