| 摘要 |
<p>Present invention provides spin dryer (400), comprising: drum (440, 440A, 440B) including inner wall surface (443) for defining storage space (R) in which laundry is stored; and drive portion (430) for rotating drum (440, 440A, 440B), wherein inner wall surface (443) includes draining area (452) in which draining portion (453) is formed to discharge water from laundry, and ridge portion (450) which protrudes inside the drum (440, 440A, 440B), ridge portion (450) has first primary ridge (451a) extending in first direction along draining area (452), second primary ridge (451b) extending in first direction so that draining area (452) intervenes between first and second primary ridges (451 a, 451b), and secondary ridge portion (455) including base end (456, 458) connected to at least one of first and second primary ridges (451a, 451b), and wherein secondary ridge portion (455) includes tip end (457, 459) connected to draining area (452).</p> |
