Article | REF: B5910 V1

Motion transformation mechanisms with local contact

Author: Jean MARTIN

Publication date: August 10, 1988

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2. Indexers

2.1 Definitions

Indexers are mechanisms that transform a continuous rotational movement into a sequence of regular movements alternating with periods of rest. These movements can be rotational or translational [8] .

Generally speaking, one complete revolution of the input movement corresponds to a fraction of a revolution of the output movement and an elementary stopping time. During this stopping time, the output shaft must be immobilized regardless of the loads to which it is subjected: this is the locking function. An indexer cycle is shown in figure 44 .

Indexers have a wide range of applications,...

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Indexers