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US 4,982,063 AGranted
Door locking and unlocking apparatus for a cooker using electromotive operation and manual operation
AssigneeKabushiki Kaisha Toshiba
InventorsTakeshi Tsunekawa, Shunji Hiraoka, Kazuhiro Nishikawa
Life of this patent
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Abstract
A cooker includes a body having a heating compartment therein, and a door attached to the body to open and close the heating compartment. The door is locked in a closed position by a lock mechanism. When the door is to be opened, the lock mechanism is electromotively released by first release mechanism, or released by external mechanical force through a second release mechanism.
Claims13
A door lock/unlock apparatus of a cooker including a body having a heating compartment therein, and a door attached to the body, for opening and closing the heating compartment, said apparatus comprising:
- a lock mechanism for locking the door in a closed position, said mechanism including an engaging portion coupled to the body and an engaging member attached to the door and movable between a release position and an engaged position where the engaging member can engage the engaging portion to keep it from opening in the closed position of the door;
- first release means for electromotively releasing the lock mechanism when the door is to be opened;
- and
- second release means for releasing the lock mechanism by receiving an external mechanical force when the door is to be opened, said second release means including an opening formed at the door, and a coupling member arranged within the door and coupled to the engaging member so as to be movable integral with the engaging member, said coupling member having an operating portion situated in the vicinity of the opening so as to be operable through the opening.
1 more element
Dependencies are inferred from the claim text.