|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||190/018A ; 190/039 ; 190/115 ; 16/019 ; 16/034 ; 280/037|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 37 인용 특허 : 12|
Automatically retractable and extendable wheel assembly is disclosed for use in conjunction with luggage cases, especially upright carry-on luggage cases and garment bags. Luggage wheels automatically extend to provide a luggage case which is tilted and with a long wheel base so that the case may comfortably and with stability be pushed or pulled across the floor upon three or more wheels, thereby removing the weight of the case from the user's arm. When the case is removed from the floor, the luggage wheels automatically retract to a protected position,...
[ We claim:] [1.] In an article of luggage comprising a body having a bottom, a back intersecting the bottom, at least one first wheel attached upon the bottom, and a wheel handle for rollably pushing and pulling the article across a supporting surface, an improvement including an automatically retractable and extendible wheel assembly, said assembly comprising:at least one housing fixed on said body and having an aperture therein;an arm member movably disposed through said aperture;at least one other wheel rotatably mounted upon said arm member;axle mea...