Tote pan handler attachment for lift trucks

Claim 1

A tote pan handler attachment for a lift truck having a lift carriage with a pair of horizontal fork arms, said attachment comprising a flat bottom base member adapted to support the attachment on a floor, a pair of fork pockets in said base member receiving said fork arms to mount the attachment on the truck, a turntable on said base member, means in said base member disposed between said fork pockets and between said turntable and said flat bottom for rotating said turntable, a horizontally extensible lazy tongs boom on said turntable, a vertical guide frame on the end of said boom, a lift carriage in said guide frame, and a tote pan lift fork on said last lift carriage, said rotating means comprising a sprocket wheel in said base member connected with said turntable, an idler sprocket wheel in said base member, an endless chain trained around said two sprocket wheels, a pair of fluid pressure cylinders in said base member, and piston rods in said cylinders connected to said chain on opposite sides of said sprocket wheels; said cylinders extending alongside said fork pockets, a pair of guide tracks extending alongside said fork pockets beyond the ends of said cylinders, a pair of slides mounted for reciprocation in said guide tracks, a pin connecting each slide with said chain, a stub rod on each of said slides aligned with its associated piston rod, a boss on the end of one of said rods seated in a socket in the end of the other rod, said rods having diametral openings therethrough adjacent said ends, and a chain repair link having pins in said openings connecting said two rod ends together.