Abstract: A lift truck employs forward and reverse pedals connected through respective cams having different upper and lower cam profiles that engage to provide asymmetric reciprocal pedal motion. For example, first pedal depression causes a first cam upper profile to engage with a second cam upper profile and cause increased elevation of a second pedal, and first pedal depression causes a first cam lower profile to disengage with a second cam lower profile associated with the second pedal, such that first pedal depression is greater than the increased elevation of the second pedal.
Abstract: A pantograph assembly may include a mast carriage assembly comprising a trunnion cross-member and a trunnion shaft coupled to the trunnion cross-member, and a pantograph mechanism coupled to the trunnion shaft.
Type:
Grant
Filed:
May 3, 2018
Date of Patent:
October 20, 2020
Assignee:
HYSTER-YALE GROUP, INC.
Inventors:
Samuel Weiss, Samuel Arnold, Todd Morgan
Abstract: A modular fork assembly for a pallet truck includes a discrete elongate body, a discrete load wheel module, and a discrete fork tip that may be detachably connected by the same or different types of interlocking mechanisms that are adapted to inhibit sheer forces. The load wheel module includes a frame and a load wheel assembly that includes a load wheel that is operatively connected to the frame.
Abstract: A control system for a vehicle uses one or more inputs of a velocity request, a brake request, a speed request, travel direction indication, engine speed, and vehicle speed to determine a control strategy for a continuously variable transmission. A target engine speed is selected based upon the inputs, and the engine and continuously variable transmission ratio are controlled to achieve the target engine speed while controlling the vehicle according to the inputs. In some embodiments, the control strategy further selects the target engine speed according to accessory system demands, such as a hoist or lift system.
Abstract: A load wheel assembly for a pallet truck includes a first load arm that rotates about an axis of rotation, and a load wheel rotationally coupled to an end of the first load arm opposite from the axis of rotation. The load wheel supports a fork at an elevation above the load wheel. Additionally, the load wheel assembly includes a second load arm pivotally coupled to the first load arm at the axis of rotation and forming a load arm angle, and an adjustment mechanism further coupling the second load arm to the first load arm. The adjustment mechanism varies the load arm angle formed between the first load arm and the second load arm to adjust the elevation of the fork above the load wheel.
Abstract: A reach truck 1, comprising a main body 10, at least one load arm 70, which protrudes from the main body 10, a mast trolley 20, which is supported at the at least one load arm 70, wherein the mast trolley 20 is shift-able along a longitudinal axis 100 of the reach truck 1 relative to the main body 10, a mast 30, which is attached to the mast trolley 20, a linear actuator 50, for shifting the mast trolley 20 along the longitudinal axis 100 relative to the main body 10, wherein the linear actuator 50 is attached at a first end 52, A thereof to the main body 10 and at a second end 54, C thereof to the mast trolley 20, and the linear actuator 50 is arranged inclined to the longitudinal axis 100 of the reach truck 1 and defines a first angle ? between the extension direction of the linear actuator 50 and the longitudinal axis 100, wherein the first angle ? changes depending on the position of the mast trolley 20 relative to the main body 10, and the reach truck 1 further comprises a sensor 60, for determining the
Abstract: A fork for an industrial vehicle such as a forklift, and a method of making the same. The fork includes an elongate body portion, a toe portion, and, optionally, a heel portion. The elongate body portion may be formed in any length and coupled to the toe portion (and optionally, to the heel portion) to form a fork.
Abstract: A load wheel assembly for a pallet truck includes a first load arm that rotates about an axis of rotation, and a load wheel rotationally coupled to an end of the first load arm opposite from the axis of rotation. The load wheel supports a fork at an elevation above the load wheel. Additionally, the load wheel assembly includes a second load arm pivotally coupled to the first load arm at the axis of rotation and forming a load arm angle, and an adjustment mechanism further coupling the second load arm to the first load arm. The adjustment mechanism varies the load arm angle formed between the first load arm and the second load arm to adjust the elevation of the fork above the load wheel.
Abstract: Apparatuses, systems and methods associated with powered vehicles are disclosed herein. In examples, a system for controlling a vehicle may include sensors and a processor coupled to the sensors. The processor may identify one or more values received from the one or more sensors, wherein the one or more values are associated with one or more conditions of the vehicle and/or the vehicle's environment, and determine, based on the one or more values, a net resultant force vector of one or more forces acting on a center of mass of the vehicle. The processor may further determine a relationship between the net resultant force vector and a stability polygon that is superimposed at a base of the vehicle, and determine whether to limit one or more of a speed, rate of change, and/or travel amount for one or more of the operational systems controlled by the processor based on the relationship between the net resultant force vector and the stability polygon. Other examples may be described and/or claimed.
Type:
Application
Filed:
August 27, 2019
Publication date:
March 5, 2020
Applicant:
Hyster-Yale Group, Inc.
Inventors:
Nicholas M. Draayer, Ryan McDermott, Edmund Stilwell
Abstract: Embodiments herein relate to impact dampening blocks that may be located in footprints of channels of a mast. The impact dampening blocks may facilitate relief of at least some tension from a lift chain when a moveable member is lowered onto the impact dampening blocks. Other embodiments may be described and/or claimed.
Type:
Grant
Filed:
October 26, 2017
Date of Patent:
February 18, 2020
Assignee:
HYSTER-YALE GROUP, INC.
Inventors:
Teun van Rooijen, Sape Sikkema, Paul Smulders
Abstract: A battery box and fork system for a vehicle having a first fork and a second fork configured to support one or more pallets positioned along a length of the first fork and the second fork. The first fork and the second fork are each independently lockable at their heel ends to a battery box.
Abstract: A method for maintaining a target electrochemical impedance (ECI) for a fuel cell, which corresponds to a target hydration state for the fuel cell. The method includes determining a target electrochemical impedance (ECI) for the fuel cell based on current operating conditions. The method further includes determining actual ECI for the fuel cell and comparing actual ECI to the target ECI. The method further includes adjusting a cathode flow to the fuel cell based on a deviation of the actual ECI from the target ECI.
Type:
Application
Filed:
June 10, 2019
Publication date:
December 26, 2019
Applicant:
Hyster-Yale Group, Inc.
Inventors:
Nicholas M. Draayer, Edmund Stilwell, Eugene Wong
Abstract: Lift trucks designed with a common chassis can include an ergonomically improved operator compartment, wheels, lift assembly, power plant, energy source, steering, seat, and counterweight components. Modular chassis designs can accommodate different form factors and different energy sources to accommodate different end uses of the lift truck, including lift trucks having a low floor, seatside steering, and/or a combination of operator-inaccessible compartments for high-reliability components and operator-accessible components for components that may require more frequent or convenient access. In one embodiment, the energy source is a lithium-ion battery bank in an operator-inaccessible compartment under a low, broad floor that facilitates easy entry into and exit from the operator compartment as well as ergonomic operation by the operator.
Type:
Application
Filed:
May 29, 2019
Publication date:
December 5, 2019
Applicant:
Hyster-Yale Group, Inc.
Inventors:
Edmund Stilwell, Ryan McDermott, Nicholas M. Draayer, Dan Miller, Mark Cheyne
Abstract: A pantograph assembly may include a mast carriage assembly comprising a trunnion cross-member and a trunnion shaft coupled to the trunnion cross-member, and a pantograph mechanism coupled to the trunnion shaft.
Type:
Application
Filed:
May 3, 2018
Publication date:
November 7, 2019
Applicant:
Hyster-Yale Group, Inc.
Inventors:
Samuel Weiss, Samuel Arnold, Todd Morgan
Abstract: An accessory arm for a lift truck includes at least one rear attachment mechanism affixed to a rear overhead guard leg of the lift truck and a front attachment mechanism affixed to a front overhead guard leg of the lift truck. The accessory arm further includes an accessory bar rotationally mounted to the at least one rear attachment mechanism and to engage with the front attachment mechanism when the accessory bar is in a closed position. A wiring harness connected to a battery of the lift truck and routed within the accessory bar to a device mounted to the accessory bar, the wiring harness to provide power to the device.
Type:
Application
Filed:
February 15, 2019
Publication date:
September 12, 2019
Applicant:
Hyster-Yale Group, Inc.
Inventors:
Joseph A. BROTHERTON, Jeffrey G. STEPHENSON, Gary L. OWENS