| 摘要 |
The present invention involves a trolley for use in movable wall panel system having auxiliary wheels positioned on opposite sides and opposite ends of the trolley. The movable wall panel system includes multiple wall panels supported by a pair of trolleys that are movable along an overhead track having X-intersections. Each trolley is engageable to the movable wall panel by a hanging device. Each trolley includes four main rotatable trolley wheel assemblies that engage and move within the overhead track. The trolley further includes two rotatable auxiliary wheels each having a diameter that is substantially smaller than the diameter of the main wheel assemblies. The auxiliary wheels are also substantially smaller in width than the main wheel assemblies. The trolley has a plate and the auxiliary wheels attach to the plate by a spacer plate. |
