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US 2014/0195127 A1Published application
Systems And Methods For Moving A Pallet Truck And Raising A Load
AssigneeHyster-Yale Group, Inc.
InventorMatthew K. Hoffman
Life of this patent
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Abstract
In some embodiments, a lift actuator is added to a pallet truck to effect initially lifting a load and a traction command effects fully raising the load while a pallet truck moves. In other embodiments, an electronic controller is programmed to effect initially lifting a load when a lift actuator is engaged and to effect fully lifting the load while a pallet truck moves when a traction actuator is engaged.
Claims11
A pallet truck lift system comprising:
- a control handle having a first lift actuator, a lower actuator and a traction actuator thereon, all of which communicate with an electronic controller;
- and
- wherein the electronic controller is programmed to receive an initial lift command and to effect an initial lifting of a load in response to receiving the initial lift command;
- and
- wherein the electronic controller is further programmed to receive a traction command from the traction actuator and to effect lifting the load and moving the pallet truck in response to receiving the traction command after receiving the initial lift command.
2 more elements
A method of operating a pallet lift truck comprising:
- positioning a pair of forks of the pallet truck to lift a load in response to traction and steering commands generated by an operator engaging a traction actuator and a control handle;
- receiving an initial lift command at an electronic controller;
- automatically generating an initial lift command by a lift actuator in response to positioning the pair of forks of the pallet truck to lift the load;
- automatically lifting the load an initial amount in response to receiving the initial lift command at the electronic controller;
- and
- lifting the load and simultaneously moving the pallet truck in response to receiving, at the electronic controller, a traction command generated by an operator engaging the traction actuator.
3 more elements
Dependencies are inferred from the claim text.