Cooking appliance with specific locking apparatus for a door, also method

A cooking appliance, comprising:

• a housing;
• a cooking chamber configured in the housing;
• a door for closing the cooking chamber;
• a guide apparatus for guiding the door as the door is moved;
• and
• a coupling facility coupling the door to the guide apparatus, said coupling facility comprising a locking apparatus configured to lock a coupled state between the door and the guide apparatus and including a bearing support with a holder, in which in the coupled state a bearing element, which is arranged on the door, engages, said locking apparatus including a door-distal tubular sleeve supported on the bearing support for rotation into a first rotational position in which in the coupled state an unlocking position is established between the sleeve and the bearing element, and into a second rotational position in which in the coupled state a locking position is established between the sleeve and the bearing element, said sleeve including a carrier configured in one of two ways, a first way in which the carrier automatically contacts a contact element of the door when the door is moved, and causes upon further movement of the door to dynamically couple the sleeve to the door and to automatically rotate the sleeve from the unlocking position to the locking position, a second way in which the carrier automatically contacts a contact element of the guide apparatus when the door is moved, and causes upon further movement of the door to automatically rotate the sleeve from the unlocking position to the locking position when the door moves relative to a coupling element of the guide apparatus.