Patent ID: 6852961

Claim:
A high frequency heating apparatus, comprising: a heating chamber having an opening, for loading therein an object to be heated; a door coupled to the heating chamber, for opening and closing the opening of the heating chamber; a door key slidably or rotatably installed at the door, the door key including at least one hook and being biased to a predetermined direction within its operation region; a plurality of switches operated by said at least one hook of the door key in response to opening and closing of the door; a switch attachment member for fixedly mounting the switches, the switch attachment member including at least one hole in which said at least one hook is latched when the door is closed; and a switch operating member rotatably installed at the switch attachment member, wherein a portion of the switch operating member is located close to the hole to cover at least one switch from outside, wherein the switch attachment member includes a stopper for regulating the rotation of the switch operating member to prevent the switch operating member from approaching the hole closer than a predetermined distance, and wherein the stopper includes a resilient member for elastically preventing the switch operating member from approaching the hole closer than a predetermined distance.