|국가/구분||United States(US) Patent 등록|
|국제특허분류(IPC7판)||B62B-001/12 A45C-005/14 A45C-009/00|
|미국특허분류(USC)||280/043.1; 280/047.17; 016/044|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 2 인용 특허 : 91|
A mobile storage unit comprises a rigid frame coupled with a top seat portion, a pair of wheels and a number of supports. The wheels are coupled to a wheel mechanism that retracts the wheels into a retracted position when a downward force is applied to the rigid frame in an upright position. As a result, at least one supplemental support that is positioned above the ground when the pair of wheels are in the extended position, touches the ground when the pair of wheels is in the retracted position thereby adding support and stability to the mobile storage...
1. A mobile storage unit configured to operate at an angled position and an upright position comprising: a. a rigid frame;b. a pair of wheels coupled to the rigid frame and having an extended position and a retracted position;c. at least one wheel mechanism for retracting the pair of wheels into the retracted position when a downward force is applied to the rigid frame in an upright position, wherein the wheel mechanism further comprises a pair of biasing elements, each of the pair of biasing elements coupled to a respective one of the pair of wheels for...