B - Operations – Transporting – 66 – F
Patent
B - Operations, Transporting
66
F
214/1
B66F 9/06 (2006.01) B66F 9/08 (2006.01)
Patent
CA 1046992
HIGH VISIBILITY MAST FOR LIFT TRUCKS A B S T R A C T A lift truck mast assembly providing unobstructed visibility for the truck operator is provided. The assembly includes a pair of spaced-apart mast uprights for supporting a load bearing carriage. Hydraulic jacks for lifting the carriage are mounted outboard of the mast uprights so that the space between such uprights is unobstructed. The mast up- rights include inner and outer telescoping channel members. The inner channel members are provided with laterally extending flange plates each having a pin-receiving, locating aperture. The rod portion of each of the hydraulic jacks is equipped with a chain sheave assembly and each sheave assembly is provided with a vertically extending locator pin. Upon extension of the rod portions, the carriage is free-lifted until the locator pins are received by the flange plate apertures at which point the inner channel members are raised concurrently with the carriage relative to the outer channel members of the mast, uprights.
266019
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