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Incrementer Device and Locking Means

IP.com Disclosure Number: IPCOM000073619D
Original Publication Date: 1971-Jan-01
Included in the Prior Art Database: 2005-Feb-22
Document File: 2 page(s) / 47K

Publishing Venue

IBM

Related People

Luoma, RW: AUTHOR

Abstract

This device includes an incremented output wheel 10 and shaft 12 which are locked in incremented positions by means of a rotatable lock shaft 14 cooperating with pins 16 fixed on wheel 10.

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Incrementer Device and Locking Means

This device includes an incremented output wheel 10 and shaft 12 which are locked in incremented positions by means of a rotatable lock shaft 14 cooperating with pins 16 fixed on wheel 10.

The device comprises a stationary sun gear 18 fixed with respect to casing 20, a planet gear 22 rotatable about its own axis and carried by carrier 24 which is driven from a drive gear 26. Planet gear 22 carries a pin 28 which enters into slots 30 in star wheel 32. Wheel 32 is fixed on shaft 12 and thereby with respect to wheel 10. As planet gear 22 rotates about fixed sun gear 18, pin 28 successively enters the slots 30 in wheel 32 for incrementing shaft 12 and wheel
10.

Lock shaft 14 is rotatably mounted in casing 20 and is driven from carrier 24 by gears 34 and 36. Shaft 14 is formed with a slot 38 for receiving pins 16 in incremented positions of wheel 10, and shaft 14 is substantially the same diameter as the spacing between the pins. A spring pressed roller detent 40 fits into external notches on wheel 10 for assuring that the wheel increments a full position each time. Shaft 14 rotates 180 degrees for each incremental movement of the wheel, and there are thirty-six roller detent positions for wheel
10. There are eighteen pins 16, and shaft 14 traps a pin every other index position of the wheel. At the end of the dwell cycle of the wheel in which a pin 16 is trapped in slot 38, the slot has turned 180 degrees and allows the pin to esca...