Mast device for fork lift truck
The present invention provides a mast assembly for a forklift truck, with which the setting and replacement of a guide unit can be achieved in an easy and convenient manner, and the cost of the guide unit can be reduced. At least one of the guide members in the first to third guide units comprises a sliding pad member 40 made of a plastic material. The sliding pad member 40 comprises a block-shaped body 42, which is hollow, is open at its base side, and has a rectangular ring-shaped cross section. The sliding pad member 40 has a rectangular, plain, front wall 44 provided at the side of the block-shaped body 42 opposite to the base side thereof. The front wall 44 has an outer surface formed as a sliding contact surface 44a. Reinforcement ribs 48 are formed on the inner surface of the front wall 44 for reinforcing the sliding contact surface 44a. Grooves 50 are formed in the sliding contact surface 44a, extending along the respective ones of the reinforcement ribs 48 and helping avoid formation of shrinkage depressions in the sliding contact surface 44a. The block-shaped body 42 includes a first pair of opposing side walls 46 and a second pair of opposing side walls 46. Tabs 52, each having a screw receiving hole 5202, are formed on the first pair of opposing side walls 46.
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Published patent application
Publication date: 07-10-2013
Applicant: Oiles Industry Co LTD, JP
Inventor: Inomata Nobuyuki, JP ; Miwa Takaaki, JP ; Nishimura Shinya, JP
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