| 摘要 |
<p>A thermostat 5 with a movable backstop has a setting wheel 10 having a ramp 20 formed thereon, a lever 45, a plunger 55 and a backstop 60 slidably connected to the frame 100 of the thermostat. The lever contacts the ramp on the setting wheel and is moved by rotation of the setting wheel. One end of the plunger is in contact with the lever, the other end being in contact with the backstop. When movement of the setting wheel causes movement of the lever, the plunger is moved in an axial direction thereof, thus causing movement of the backstop. The ramp is positioned on the setting wheel such that the backstop is moved when the setting wheel is turned to an off position. <IMAGE></p> |
