Lifting mechanisms Articulated lift being demonstrated Other uses for cherry pickers quickly evolved. Another early cherry picker manufacturer was Stemm Brothers, Leavenworth, WA. He went on to launch the Telsta Corporation, Sunnyvale, CA in 1953 to manufacture the device. Jay Eitel invented the device in 1944 after a frustrating day spent picking cherries using a ladder. Īs the name suggests, cherry pickers were initially developed to facilitate the picking of cherries. Underbridge units are also available to lift operators down to a work area. They may also be equipped with specialist equipment, such as carrying frames for window glass. Regardless of the task they are used for, aerial work platforms may provide additional features beyond transport and access, including being equipped with electrical outlets or compressed air connectors for power tools.
They are usually capable of being set up and operated by a single person. They are designed to lift limited weights - usually less than a ton, although some have a higher safe working load (SWL) - distinguishing them from most types of cranes. They are generally used for temporary, flexible access purposes such as maintenance and construction work or by firefighters for emergency access, which distinguishes them from permanent access equipment such as elevators. There are distinct types of mechanized access platforms and the individual types may also be known as a "cherry picker", "boom lift" or "scissor lift". Replacing an advertising poster in London using an aerial work platform.Īn aerial work platform (AWP), also known as an aerial device, elevating work platform (EWP), cherry picker, bucket truck or mobile elevating work platform (MEWP) is a mechanical device used to provide temporary access for people or equipment to inaccessible areas, usually at height. JSTOR ( April 2016) ( Learn how and when to remove this template message).Unsourced material may be challenged and removed.įind sources: "Aerial work platform" – news Please help improve this article by adding citations to reliable sources. This article needs additional citations for verification.
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