|국가/구분||United States(US) Patent 등록|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 0 인용 특허 : 13|
A mobile cart having a retractable wheel assembly. A control rod engages the gear mechanisms coupled to the deployment rods. As the control rod engages the gear mechanisms, the gear mechanisms rotate the deployment rods between a deployed state and a retracted state. The ends of the deployment rods that are located within each wheel base push against the top portion of each wheel housing, thereby pushing each wheel housing out and away from the wheel bases so that the mobile cart may be pushed on the exposed wheels.
1. A mobile cart comprising: a frame;at least one retractable wheel base assembly coupled to a base of the frame, wherein the retractable wheel base assembly comprises: a wheel base;a wheel housing movably coupled to the wheel base; anda plurality of wheels coupled within the wheel housing;a gear mechanism for deploying and retracting the wheel housing relative to the wheel base;at least one deployment rod coupled to the base of the frame, wherein the gear mechanism is coupled along a length of the deployment rod, wherein the deployment rod comprises: an...