| 摘要 |
PURPOSE: An upright type vacuum cleaner is provided to change the direction of the upright type vacuum cleaner easily by using an auxiliary rotation member. CONSTITUTION: An upright type vacuum cleaner comprises a main body(10) and a wheel unit(100). The wheel unit comprises main rotation members(111, 121), a plurality of auxiliary rotation members(112, 122), and a plurality of housings. The auxiliary rotation members are rotated to the reverse direction of the main rotation members and installed in the main rotation members. The housings are installed in the main rotation members to stores the auxiliary rotation members. |
