the cleansing basket 14 downwardly the transmission 70 includes a hollow dryer shaft 72 integrated to the bottom plane of the cleansing basket 14 several bearings 76 supporting the hollow dryer shaft 72 and a washing shaft 74 mounted by penetrating the hollow dryer shaft 72 is fixed to the hub part 162 by passing the hollow shaft part 163 of the pulsator 16 and is connected with the driving motor 22 in addition the floatage clutch 80 includes a float 82 coupled with the washing shaft 74 to be capable of moving up and down and a fixed member 83 fixed to the upper end of the hollow dryer shaft 72 the fixed member is able to be separated from and coupled with the float at the lower side of the float the float 82 has a hub portion 821 to be inserted into the hollow shaft part 163 of the pulsator 16 and a tube portion 822 constructed around the hub portion 821 the fixed member 83 is constructed as a shaft of which the lower end is connected with the cleansing basket 14 and the upper end is inserted into the hub portion 821 of the float 82 see fig6 here the hub portion 821 of the float 82 is formed with an inner top.