Patent ID: 7195105
Filing Date: 2007-03-27
Classification: B66F

Abstract:
1. A mast structure for a lift truck comprising: a mast comprising a pair of parallel uprights, the mast having a fore-and-aft direction which coincides with a fore-and-aft direction of a lift truck when the mast is mounted on a front end of the lift truck and a widthwise direction extending transversely to the fore-and-aft direction of the mast; a carriage for supporting a load mounted on the uprights for movement along a height of the mast; an elongated guide member secured to the mast between the uprights; and a roller mounted on the carriage and having a rotational axis extending in the fore-and-aft direction of the mast and rollable along the guide member and engageable with the guide member as the carriage moves along the mast to resist forces acting on the carriage in the widthwise direction of the mast and moments acting on the carriage about an axis extending in the fore-and-aft direction of the mast.