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This is a record of a document published elsewhere, first published by the United States Patent and Trademark Office, as US-2026077985-A1, on 19 March 2026. OpenTechnical did not first disclose it. The identifier, hashes and timestamps below record what this library served and when, not when the material became public. View the original.

OT-2026-000001754

Dynamically stable ergonomic control for man-up lift truck

Published
Permanent URL
Classification
Lifting, Positioning & Manipulation › Lift Tables and Positioners
Inventors
DENDY TANNER REESE, HOFFMAN MATTHEW KENNETH, LANCASTER JUSTIN BRYANT
Assignee
HYSTER YALE MAT HANDLING INC
Original source
US-2026077985-A1, the United States Patent and Trademark Office, 19 March 2026
Document SHA-256
8d86f5e6f5642d869c2e91622f9995558d758b14b32919eeebf3649808e46efe

Abstract

An operator control device for a man-up lift truck includes a handle pivotably arranged on a support structure at a pivot point. The support structure is secured to the lift truck such that horizontal and vertical positions of the pivot point are substantially fixed with respect to the lift truck during operation. The handle comprises an upper surface contoured to ergonomically support an operator's hand with an operator's wrist arranged substantially directly above the pivot point. The handle may be biased in a neutral position. Clockwise and counter-clockwise rotation of the handle may cause forward driving and stopping/reverse driving of the man-up lift truck, respectively. A thumb-operated switch can be arranged on the handle to control lift operations of the man-up lift truck. The operator control device provides dynamic stability to an operator and reduces carpal tunnel stresses and the like in the operator's wrist.

Publication information

Citation

OpenTechnical Publication OT-2026-000001754, “Dynamically stable ergonomic control for man-up lift truck,” published September 15, 2026 at 19:08:28 UTC, https://opentechnical.org/p/OT-2026-000001754.

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