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Why are levers usually tapered?


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Why are levers usually tapered?

levers.jpg

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In lever, The bending moment is maximum at the fulcrum and minimum at the ends, therefore the levers are tapered from fulcrum towards the ends to save the material at the ends.

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The "tapered levers" shown are all handlees which points to the reason for the taper. They are tapered to fit the hand of the user.

The taper has no bearing on the function of the leaver. There may be a taper for esthetic reasons, but it is not functional.

DrD

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