A washing machine comprising: a cabinet; a tub placed within the cabinet; a wash tub located within the tub to receive laundry therein; and an element receiving unit coupled to one side of the cabinet; a coupling panel provided at the element receiving unit so as to be coupled to the cabinet; a receiving panel provided at the cabinet so as to receive at least a portion of the coupling panel; a first holder and a second holder formed at the coupling panel; and a first receiving hole and a second receiving hole perforated in the receiving panel to receive the first holder and the second holder respectively therein, the first receiving hole and the second receiving hole including first circles (52a, 53a), respectively, and second circles (52b, 53b), respectively, wherein the coupling panel has been pivotally rotated after the first holder has been located in the first receiving hole, thereby fitting the second holder into the second receiving hole, characterized in that the first receiving hole is oriented in a first direction being a direction from the first circle to the second circle of the first receiving hole, the first direction approximately corresponding to a longitudinal direction of the receiving panel and the second receiving hole is oriented in a second direction being a direction from the first circle to the second circle of the second receiving hole, the second direction approximately corresponding to a transversal direction of the receiving panel. whereby the element receiving unit has been coupled to the cabinet by following the following sequence of states: a first state in which the first holder is received and seated in the first circle of the first receiving hole, while the second holder is not yet received in the second receiving hole; a second state wherein through movement of the element receiving unit, the first holder is moved to and fitted into the second circle of the first receiving hole, whereby simultaneously the second holder is received in and seated into the first circle of the second receiving hole; a third state wherein the element receiving unit is pivotally rotated to thereby locate and fit the second holder in the second circle of the second receiving hole. a cabinet; a tub placed within the cabinet; a wash tub located within the tub to receive laundry therein; and an element receiving unit coupled to one side of the cabinet; a coupling panel provided at the element receiving unit so as to be coupled to the cabinet; a receiving panel provided at the cabinet so as to receive at least a portion of the coupling panel; a first holder and a second holder formed at the coupling panel; and a first receiving hole and a second receiving hole perforated in the receiving panel to receive the first holder and the second holder respectively therein, the first receiving hole and the second receiving hole including first circles (52a, 53a), respectively, and second circles (52b, 53b), respectively, wherein the coupling panel has been pivotally rotated after the first holder has been located in the first receiving hole, thereby fitting the second holder into the second receiving hole, characterized in that the first receiving hole is oriented in a first direction being a direction from the first circle to the second circle of the first receiving hole, the first direction approximately corresponding to a longitudinal direction of the receiving panel and the second receiving hole is oriented in a second direction being a direction from the first circle to the second circle of the second receiving hole, the second direction approximately corresponding to a transversal direction of the receiving panel. whereby the element receiving unit has been coupled to the cabinet by following the following sequence of states: a first state in which the first holder is received and seated in the first circle of the first receiving hole, while the second holder is not yet received in the second receiving hole; a second state wherein through movement of the element receiving unit, the first holder is moved to and fitted into the second circle of the first receiving hole, whereby simultaneously the second holder is received in and seated into the first circle of the second receiving hole; a third state wherein the element receiving unit is pivotally rotated to thereby locate and fit the second holder in the second circle of the second receiving hole.