US 12,330,892 B2
Cargo unloading system and method of operation
Grant Antony Udy, Hamilton (NZ)
Assigned to MAXILODA LIMITED, Hamilton (NZ)
Appl. No. 17/910,284
Filed by MAXILODA LIMITED, Hamilton (NZ)
PCT Filed Mar. 9, 2021, PCT No. PCT/NZ2021/050038
§ 371(c)(1), (2) Date Sep. 8, 2022,
PCT Pub. No. WO2021/182977, PCT Pub. Date Sep. 16, 2021.
Claims priority of application No. 762460 (NZ), filed on Mar. 9, 2020.
Prior Publication US 2023/0139319 A1, May 4, 2023
Int. Cl. B65G 67/04 (2006.01); B66F 9/075 (2006.01); B66F 9/14 (2006.01)
CPC B65G 67/04 (2013.01) [B66F 9/0755 (2013.01); B66F 9/142 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A cargo loading system for use with a cargo storage area of a vehicle, the cargo loading system comprising:
a mast frame;
a carriage assembly supported by the mast frame, the carriage assembly comprising:
lifting forks;
a fork lateral control mechanism configured to control lateral movement of the lifting forks across the carriage assembly; and
a carriage pivot control mechanism configured to control pivotal movement of the carriage assembly relative to the mast frame about a first vertical axis, wherein the carriage pivot control mechanism comprises a first rotary actuator configured to pivot the carriage assembly about the first vertical axis;
a fork pivot control mechanism configured to control pivotal movement of the lifting forks relative to the carriage assembly about a second vertical axis, between a first position in which the lifting forks extend away from the carriage assembly and a second position in which the lifting forks extend along the carriage assembly;
a carriage vertical control assembly configured to control raising and lowering of the carriage assembly relative to the mast frame;
a mast frame actuating assembly configured to control lateral movement of the mast frame relative to an open end of the cargo storage area of the vehicle.