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Epicyclic Incremental Motion Mechanism

IP.com Disclosure Number: IPCOM000097783D
Original Publication Date: 1961-Jul-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 41K

Publishing Venue

IBM

Related People

Mathurin, EL: AUTHOR [+2]

Abstract

The mechanical summing device adds a continuous displacement to a cam produced oscillating movement scaled so as to produce an incremental movement.

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Epicyclic Incremental Motion Mechanism

The mechanical summing device adds a continuous displacement to a cam produced oscillating movement scaled so as to produce an incremental movement.

An input shaft 1 is driven at a constant speed, either clockwise or counterclockwise to provide a continuous displacement. An output shaft 2 is mounted in line with shaft 1. Between the shafts 1 and 2, there is a stationary internal gear 3, a planet gear a and a multi-lobed planet cam 5. Gear 4 is driven around gear 3 by an arm 6 attached to shaft 1. Cam 5 is integral with the planet gear and rotates with it to produce the oscillating motion. A cam follower 7 is mounted on a follower arm 8 which is fixed to shaft 2.

Arm 8 is driven by cam 5. Thus, the cam motion is added and subtracted from the cam displacement. This produces an intermittent movement of follower 8.

A pinion gear 9 is mounted on the output shaft to drive a rack 10. A complementary cam follower 11 is carried by a cantilever spring 12 and causes follower 7 to follow cam 5 with only slight deflection of the spring 12.

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