High-frequency heating device having rotatable tray and high frequency wave agitator

Claim 1

A high-frequency heating device comprising: a heating chamber; high-frequency oscillating means for irradiating high-frequency waves into the heating chamber; a rotatable tray disposed in the heating chamber and adapted to receive thereon an object to be heated, said rotatable tray being made of a material permeable to electric waves and having a guide portion formed at a central portion of its lower surface; torque transmitting means, disposed between the rotatable tray and the bottom of the heating chamber, for transmitting torque to the rotatable tray, said torque transmitting means including a roller holder having an engaging portion and a plurality of roller supporting arms which extend radially from the engaging portion and are slanted upward toward the rotatable tray to reflect waves passed through the rotatable tray toward the object on the rotatable tray, and a plurality of rollers rotatably supported on the extended end of the corresponding roller supporting arms and adapted to roll on the bottom of the heating chamber, said rotatable tray being placed on the rollers; and driving means for rotating the roller holder, said engaging portion of the roller holder detachably coupled to the driving means to thereby facilitate cleaning of underlying surfaces, and being engaged with the guide portion of the rotatable tray to position the rotatable tray relative to the roller holder.