|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||190/018.A; 280/037; 280/047.315; 016/034|
|발명자 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 15 인용 특허 : 7|
A roller device of luggage case includes the luggage case having at least two retractile mechanisms with at least two rollers at each bottom side. The retractile mechanism is connected with retractable handle pivotally so that the rollers stick outside the bottom of the luggage case when the retractable handle is pulled up and completely hides within the luggage case while the retractable handle is folded up. Thus not only the luggage case has a better outlook but also the trouble of hooking with other luggage can be avoided.
1. A roller device of luggage case comprising rollers disposed on a bottom of a luggage case, said luggage case having a retractable handle and at least two of said rollers on the bottom thereof; wherein the improvement is characterized by: each of said rollers is arranged inside a retractile mechanism comprising a housing, a lateral covering plate disposed at lateral side of said housing, forming part of the lateral side of said luggage case, a bottom covering plate coaxial to said roller, forming part of the bottom side of said luggage case, ...