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A scissors mechanism uses linked, folding supports in a criss-cross 'X' pattern.[1]
The scissor mechanism is a mechanical linkage system used to create vertical motion or extension. It consists of a series of interconnected, folding supports that resemble the shape of a pair of scissors, hence its name. The scissor mechanism is widely employed in various applications, including scissor lifts, folding tables, adjustable height platforms, and automotive jacks.[2]
Extension is achieved by applying pressure to the outside of a set of supports located at one end of the mechanism, elongating the crossing pattern. This can be achieved through hydraulic, pneumatic, mechanical or simply muscular means.
A power source is turned on resulting in the flow of hydraulic fluid or air (in the case of a pneumatic lift) in the cylinder. The hydraulic cylinder thrust outward for upraised movement and that in turn lead the scissor legs to spread and raise the platform table upwards. To lower the lift, the operator uses a down valve to release hydraulic fluid or pneumatic pressure, which causes the scissor legs to retract.[3][4]
Usesedit
This mechanism is used in devices such as lift tables and scissor lifts. Modern low-profile computer keyboards make an extensive use of it as well, installing each key on a scissor support to ensure their smooth vertical movement, allowing the use of a cheap and reliable rubber dome contact set, instead of expensive and complex array of mechanical switches.
scissors, mechanism, this, article, relies, largely, entirely, single, source, relevant, discussion, found, talk, page, please, help, improve, this, article, introducing, citations, additional, sources, find, sources, news, newspapers, books, scholar, jstor, f. This article relies largely or entirely on a single source Relevant discussion may be found on the talk page Please help improve this article by introducing citations to additional sources Find sources Scissors mechanism news newspapers books scholar JSTOR February 2020 A scissors mechanism uses linked folding supports in a criss cross X pattern 1 An example of a simple scissor liftA pantograph mirrorThe scissor mechanism is a mechanical linkage system used to create vertical motion or extension It consists of a series of interconnected folding supports that resemble the shape of a pair of scissors hence its name The scissor mechanism is widely employed in various applications including scissor lifts folding tables adjustable height platforms and automotive jacks 2 Contents 1 Workings 1 1 Uses 1 2 See also 2 ReferencesWorkings editExtension is achieved by applying pressure to the outside of a set of supports located at one end of the mechanism elongating the crossing pattern This can be achieved through hydraulic pneumatic mechanical or simply muscular means A power source is turned on resulting in the flow of hydraulic fluid or air in the case of a pneumatic lift in the cylinder The hydraulic cylinder thrust outward for upraised movement and that in turn lead the scissor legs to spread and raise the platform table upwards To lower the lift the operator uses a down valve to release hydraulic fluid or pneumatic pressure which causes the scissor legs to retract 3 4 Uses edit This mechanism is used in devices such as lift tables and scissor lifts Modern low profile computer keyboards make an extensive use of it as well installing each key on a scissor support to ensure their smooth vertical movement allowing the use of a cheap and reliable rubber dome contact set instead of expensive and complex array of mechanical switches See also edit Pantograph Telescopic cylinder Linear actuatorReferences edit Scissor Lift Jack Review amp Equations Engineers Edge LLC Retrieved January 2 2012 Mechanical engineering concepts Pantograph or scissor mechanisms lo unisa edu au Retrieved 2023 05 16 Scissor Lift Aakash Engineers Retrieved 2023 05 16 Mechanical engineering concepts Pantograph or scissor mechanisms lo unisa edu au Retrieved 2023 05 16 nbsp This technology related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Scissors mechanism amp oldid 1156851942, wikipedia, wiki, book, books, library,
