PURPOSE: To improve handleability of the titled switch by providing an interlocking member between an AC source cooling and heating changeover switch and a DC source cooling and heating changeover switch to interlock cooling and heating changeover of both changeover switches.
CONSTITUTION: The DC source cooling and heating changeover switch 11 such as a drive display lamp or the like is provided in parallel to the AC source cooling and heating changeover switch 2 and a heater ON-OFF switch 1, and an interlocking member 6c is provided at one end of an interlocking body 6 which interlocks the cooling and heating changeover of the DC source cooling and heating changeover switch 2 and the ON-OFF changeover of the heater ON-OFF switch 1. The cooling and heating changeover is performed by pressing or releasing an actuator 12 of the DC source cooling and heating changeover switch 11 in linkage with the manipulation of the AC source cooling and heating changeover switch 2 through these interlocking body 6 and interlocking member 6c. By this operation, the handleability of the drive changeover switch can be exceedingly increased and the control circuit can simplified.
OOTA SHIGERU
OOTAKI SHIZUO
HIGASA KIMIHIKO
