Motion transforming device, and in particular a speed reduction

Details Motion transforming device, and in particular a speed reduction Motion transforming device, and in particular a speed reduction

1989-12-12

1991-07-23

Braun, Leslie A.

Planetary gear transmission systems or components

Planet pinion engages flexible belt or chain

74203, F16H 5936, F16H 1500

Patent

active

050339958

ABSTRACT:
A device for transforming motion, and in particular a speed reduction gear, comprises a first stage comprising two moving members (50, 60) at least one of which is functionally coupled to a shaft (74) generating a rotary motion; a second stage comprising at least one set of two pulleys (54, 54) constrained to rotate together, and co-operating with respective transmission means, for example two endless drive strands (52, 64) which co-operate with the moving members of the first stage; and a moving support (26) which supports the two pulleys of the second stage to rotate freely and which is displaced over an imposed trajectory, thereby generating a second motion, with the first motion being a high speed motion and the second motion being a slow motion.

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