发明名称 HINGED BOTTOM ROLLER ASSEMBLY AND COUNTERBALANCE MECHANISM FOR OVERHEAD DOOR
摘要 An overhead door assembly configured to be coupled to a storage container, such as a truck trailer, including an overhead door including a plurality of door panels hingedly coupled to one another and a bottom roller assembly coupled to a bottom panel of the door. The bottom roller assembly includes a hinge and a roller coupled to a lower hinge plate of the hinge. The roller includes a shaft and a roller wheel coupled to one end of the shaft. Illustratively, the lower hinge plate and the roller thereon are configured to pivot about a pivot axis of the hinge relative to the bottom panel of the door between a first position generally adjacent the bottom panel of the door and a second position spaced-apart from the bottom panel of the door.
申请公布号 CA2818655(A1) 申请公布日期 2012.05.31
申请号 CA20112818655 申请日期 2011.11.21
申请人 WABASH NATIONAL, L.P. 发明人 EHRLICH, RODNEY P.
分类号 B60J5/14 主分类号 B60J5/14
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