| 摘要 |
<p>PURPOSE: A wheel device for a carrier is provided to absorb shocks applied to the carrier and to prevent damage to the carrier. CONSTITUTION: A wheel device for a carrier comprises a housing, a wheel (20), and auxiliary wheels (40). The housing is assembled with edges of a bag and is formed with an open groove (11) on the lower part thereof. The wheel is assembled with the open groove of the housing and connects to an elastic unit. The auxiliary wheels are formed on the upper part of the housing and rotate around a rotary shaft (31) connected to the housing. The rotary shaft of the wheel (30) is combined with a wheel cover (21) so that the elastic unit can rotate. The upper surface of the wheel cover and the inner surface of housing connect to each other by an elastic body (22). The wheel moves inside the open groove.</p> |
