OPENTECHNICAL PUBLICATION
OT-2026-000001743

Dynamically stable ergonomic control for man-up lift truck

Published: 2026-09-15T19:08:17.378815Z
Permanent URL: https://opentechnical.org/p/OT-2026-000001743
Categories: Lifting, Positioning & Manipulation > Lift Tables and Positioners

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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.

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OpenTechnical publication OT-2026-000001743
Published 2026-09-15T19:08:17.378815Z
https://opentechnical.org/p/OT-2026-000001743