Material or article handling – Elevator or hoist and loading or unloading means therefor – Comprising means enabling additional movement of carrier or...
Patent
1992-12-04
1993-06-08
Huppert, Michael S.
Material or article handling
Elevator or hoist and loading or unloading means therefor
Comprising means enabling additional movement of carrier or...
414659, B66F 914
Patent
active
052173437
ABSTRACT:
A lifting mechanism for a fork lift truck wherein a side shifting carriage is slidably supported on horizontal bearing bars that are directly attached to the upright of the lift truck. Lifting bars secure the bearing bars together and carry load roller bearings supported in the guide slots of the uprights. A hydraulic motor anchored to the bearing bar assembly at one end and the carriage at the other controls horizontal sliding of the carriage relative to the bearing bars. The interfitting arrangement of the bearing bars in the carriage reduces the load moment arm, reduces the weight requirement, and provides the operator with greater visibility as compared to prior side shift carriage mounts.
REFERENCES:
patent: 3819078 (1974-06-01), Walsh
patent: 4125199 (1978-11-01), Abels et al.
patent: 4392773 (1983-07-01), Johannson
patent: 4406575 (1983-09-01), Gaibler
patent: 4607997 (1986-08-01), Asano
Bostad Wayne
Frison Emmett
Johnson Alan
Harrington Robert L.
Huppert Michael S.
Keenan James
Swingshift/Brudi Manufacturing, Inc.
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