Roll over protection structure

Roll over protection structure

Roll Over Protection Structure (ROPS) refers to operator compartment structures (usually cabs or frames) intended to protect equipment operators from injuries caused by vehicle s or rollovers.

Commonly found on heavy equipment (i.e. tractors) used in construction and agriculture, ROPS structures are defined by various regulatory agencies, including the US Occupational Safety and Health Administration (OSHA). ["See" OSHA " [ Roll-Over Protective Structures, Direct Final Rule.] "] The regulations include both a strength requirement as well as an energy absorption requirement of the structure. Some dump trucks add a protrusion to their boxes that cover the operators compartment for ROPS purposes.

In the US, ROPS designs have to be certified by a Professional Engineer, who will normally require a destructive test. The structure will be tested at a reduced temperature (where the metal is more brittle), or fabricated from materials that have satisfactory low temperature performance.

The National Institute for Occupational Safety and Health (USA) believes that ROPS and proper seatbelt use on tractors can eliminate nearly all fatalities caused by tractor and lawn mower overturns. [ "See" National Institute for Occupational Safety and Health (US) " [ NIOSH Program Portfolio: Traumatic Injury: Selected Research-to-Practice Efforts Addressing Traumatic Injury Problems: Automatically deployed roll-over-protection structure (ROPS).] "] (Without a seatbelt, the rider may be thrown from the tractor during the overturn, and thus left unprotected by the ROPS). [National Agricultural Safety Database(USA) " [ PSA Radio Script: Roll-over Protection Structures.] ] "]

Some tractor operators have raised concerns about using ROPS in low-clearance environments, such as in orchards and buildings. In response, NIOSH developed an Automatically Deploying Rollover Protective Structure (AutoROPS) which stays in a lowered position until a rollover condition is determined, at which time it deploys to a fully extended and locked position. It is currently working with manufacturers to streamline the commercialization of this technology. [National Institute for Occupational Safety and Health (US) " [ NIOSH Program Portfolio: Traumatic Injury: Selected Research-to-Practice Efforts Addressing Traumatic Injury Problems: Automatically deployed roll-over-protection structure (ROPS).] "]

Some automobile models have begun to adopt the phrase, substituting "system" for "structure" in the ROPS acronym, notably the Volvo C70 convertible models, and Jaguar XK. Their ROPS structures consist of two pyrotechnically charged roll hoops hidden behind the rear seats that will pop up in the case of a roll-over to protect the occupants. If the roof is up, the system will still work, in effect shattering the rear window at the same time.


ee also

* Active Rollover Protection
* Gyroscope
* Roll cage

External links

* European Economic Community. " [!celexplus!prod!DocNumber&lg=en&type_doc=Directive&an_doc=1987&nu_doc=402 Council Directive 87/402/EEC of 25 June 1987 on roll- over protection structures mounted in front of the driver's seat on narrow-track wheeled agricultural and forestry tractors.] "
* [ ROPS test procedure] (US State of Washington)
* [ Jaguar and Volvo Offer Safety and Excitement In New Convertibles]
* Jaguar: [ Animation of roll hoops extending]
* [ Adaptive Tractor Overturn Prediction System] .

Wikimedia Foundation. 2010.

Поможем решить контрольную работу

Look at other dictionaries:

  • Dodd–Frank Wall Street Reform and Consumer Protection Act — Full title An Act to promote the financial stability of the United States by improving accountability and transparency in the financial system, to end too big to fail , to protect the American taxpayer by ending bailouts, to protect consumers… …   Wikipedia

  • Tractor — This article is about a vehicle used in agriculture or construction. For the power unit of a semi trailer truck (articulated lorry), see tractor unit. For other uses, see Tractor (disambiguation) …   Wikipedia

  • Ice protection system — Ice protection systems are designed to keep atmospheric ice from accumulating on aircraft flight surfaces while in flight. The effects of ice accretion on an aircraft can cause the shape of airfoils and flight control surfaces to change, which… …   Wikipedia

  • Patient Protection and Affordable Care Act — Full title The Patient Protection and Affordable Care Act. Acronym PPACA Colloquial name(s) Affordable Care Act, Healthcare Insurance Reform, Obamacare, Healthcare Reform Enacted by the …   Wikipedia

  • Volvo C70 — Infobox Automobile name=Volvo C70 manufacturer=Volvo Cars Pininfarina Sverige AB (2nd generation) assembly=Uddevalla, Sweden production=1997 present layout=FF layout class=Cabriolet CoupeThe Volvo C70 is a two door manufactured by Volvo Cars in… …   Wikipedia

  • Lawn mower — A typical modern gasoline powered push mower. A riding mower or ride on …   Wikipedia

  • National Fire Protection Association — Abbreviation NFPA Formation 1896 Headquarters Quincy, Massachusetts …   Wikipedia

  • List of agricultural machinery — Agricultural machinery is any kind of machinery used on a farm to help with farming. The best known example of this kind is the tractor.Traction and power*Tractor *Crawler tractor / Caterpillar tractoroil cultivation*Cultivator *Chisel plow… …   Wikipedia

  • Convertible — For the currency reference, see convertibility. For the stock trading reference, see convertible security. For the carriage, see Cabriolet (carriage) Jaguar XK c. 2008, with heatable glass rear window and fully automatic cloth top with integral… …   Wikipedia

  • Volvo Cars — Infobox Company company company name = Volvo Personvagnar AB Volvo Car Corporation company type = Subsidiary of Ford Motor Company foundation = 1927 by SKF, Assar Gabrielsson and Gustav Larson location = flagicon|Sweden Gothenburg, Sweden key… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”