Patent ID: 7937974

Claim:
A laundry processing apparatus comprising: a drum, a circumferential surface of the drum defining a drum opening that accommodates entrance and exit of laundry into an interior of the drum; a drum door configured and positioned to enable or prevent access to the interior of the drum through the drum opening while sliding under the drum opening; and a locking device, configured to move relative to the drum and the drum door when the drum is fixed relative to the drum door, to automatically couple the drum and the drum door to each other while the drum and the drum door are rotated, wherein the locking device comprises: a hanger member installed at an inner wall of the drum and rotatable by a centrifugal force generated by the rotation of the drum so as to lock the drum door in a direction perpendicular to the movement direction of the drum door, and a coupling portion including a portion of the drum door configured to receive a portion of the hanger member.