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Browse Prior Art Database

Cam Control for Printers

IP.com Disclosure Number: IPCOM000091990D
Original Publication Date: 1968-Jul-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 55K

Publishing Venue

IBM

Related People

Hilpert, F: AUTHOR

Abstract

In every twelfth printing column, one electromagnet 1 is attached to the bar 2. The latter is reciprocally movable via a cam 3 having a continuously increasing diameter. Bar 2, together with leaf springs 11, constitutes a parallelogram type drive. Each electromagnet 1, through one connecting rod 4, is associated with one printing hammer 5. All hammers 5 are reciprocally movable through cam 6 via bearing bar 7. This is pivoted to leaf springs 12, thus providing a hammer step movement superimposed on the magnet movement. Electric motor 8, driving the two cams 3 and 6 can be arranged either to be stationary or be mounted on bar 2. In the latter case, cam 6 acting on the bearing bar 7 of the hammers 5, is smaller and the printing area is adjustable by axially shifting holder 9 of counter roll 10 meshing with cam 3.

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Cam Control for Printers

In every twelfth printing column, one electromagnet 1 is attached to the bar 2. The latter is reciprocally movable via a cam 3 having a continuously increasing diameter. Bar 2, together with leaf springs 11, constitutes a parallelogram type drive. Each electromagnet 1, through one connecting rod 4, is associated with one printing hammer 5. All hammers 5 are reciprocally movable through cam 6 via bearing bar 7. This is pivoted to leaf springs 12, thus providing a hammer step movement superimposed on the magnet movement. Electric motor 8, driving the two cams 3 and 6 can be arranged either to be stationary or be mounted on bar 2. In the latter case, cam 6 acting on the bearing bar 7 of the hammers 5, is smaller and the printing area is adjustable by axially shifting holder 9 of counter roll 10 meshing with cam 3.

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