---
publication_id: "OT-2026-000001743"
title: "Dynamically stable ergonomic control for man-up lift truck"
published_at: "2026-09-15T19:08:17.378815Z"
canonical_url: "https://opentechnical.org/p/OT-2026-000001743"
categories:
  - "lifting-positioning-manipulation/lift-tables-and-positioners"
keywords:
  - "b66f9/0759"
  - "b66f9/0759"
  - "b66f9/0759"
  - "b66f11/04"
  - "b66f11/04"
  - "b66f11/04"
---

# Dynamically stable ergonomic control for man-up lift truck

## Abstract

An operator control device for a materials-handling vehicle includes an ergonomic handle rotatably mounted on a support structure secured to the vehicle in a fixed position. The ergonomic handle can include left and right handles. Each handle comprises an upper surface contoured to ergonomically support an operator's hand. Clockwise and counter-clockwise rotation of the control device produces a steering input used to steer the vehicle. A thumb-operated switch can be arranged on the right or left handle to control lift operations and a separate thumb-operated switch can be arranged on the opposite handle to control a speed of the vehicle. Each switch can be operated without requiring the operator to move his/her hand from an operating position. Dynamic stability is provided by enabling an operator to use the handle to provide a bracing force during operation of the vehicle.