Laundry device

A washing machine comprising:

• a cabinet including a front surface that defines a cabinet introduction port;
• a tub disposed in the cabinet, the tub having a tub introduction port coaxially positioned with the cabinet introduction port;
• a cabinet door mounted on the cabinet and configured to open and close the cabinet introduction port;
• a tub door mounted on the tub and configured to open and close the tub introduction port, the tub door comprising an engaging hook that has an engaging hole;
• a cabinet door lock configured to set a locked state of the cabinet door and to detect whether the cabinet is open or closed;
• and
• a tub door lock configured to set a locked state of the tub door based on whether the cabinet door is open or closed,
• wherein the tub door lock comprises (i) a body provided at the tub and (ii) a rotating hook provided at the body and configured to rotate relative to the body, the rotating hook comprising a hook protrusion configured to insert into the engaging hole based on rotation of the rotating hook relative to the body,
• wherein a radius of the hook protrusion decreases toward a rotational center of the rotating hook, and
• wherein the hook protrusion is configured to pull the tub door toward the tub introduction port based on the hook protrusion inserting into the engaging hole.