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NIOSH autoROPS latch and release mechanism: second generation.

McKenzie EA; Etherton JR
Proceedings of the 2002 American Society of Mechanical Engineers, Congress and Exposition, November 17-22, 2002, New Orleans, Louisiana. Fairfield, NJ: ASME International, IMECE2002-32458, 2002 Nov; 3:87-91
Approximately 132 agricultural tractor overturn fatalities occur per year (Myers and Snyder, 1993). The use of rollover protective structures on farm tractors (ROPS), along with operator seat belt use, is the best known method for preventing these fatalities. One impediment to universal ROPS use, however, is low clearance situations, such as orchards and animal confinement buildings. To address the need for ROPS that are easily adapted to low clearance situations, the Division of Safety Research (DSR), National Institute for Occupational Safety and Health (NIOSH), developed a prototype automatically deploying, telescoping ROPS (AutoROPS). The NIOSH AutoROPS consists of two subsystems. The first is a retractable ROPS that is normally mounted to the tractor axle and latched in its lowered position for day-to-day use. The second subsystem is a sensor that monitors the operating angle and rate of roll on two axes of the tractor. If an overturn condition is detected by the sensor, the retracted ROPS will deploy and lock in the full upright position before ground contact. This paper discusses the second generation design of the latch and release mechanism (LRM) for the NIOSH AutoROPS and recommends key areas for future surveillance and design research to best facilitate reduction in farm rollover fatalities.
Agricultural industry; Agricultural machinery; Agricultural workers; Mortality data; Occupational hazards; Injury prevention; Tractors; Monitors; Farmers
Publication Date
Document Type
Conference/Symposia Proceedings
Fiscal Year
NIOSH Division
Priority Area
Research Tools and Approaches: Control Technology and Personal Protective Equipment; Disease and Injury: Traumatic Injuries
Source Name
Proceedings of the 2002 American Society of Mechanical Engineers, Congress and Exposition
Page last reviewed: March 3, 2021
Content source: National Institute for Occupational Safety and Health Education and Information Division