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Seven-Wire Print Head

IP.com Disclosure Number: IPCOM000043776D
Original Publication Date: 1984-Sep-01
Included in the Prior Art Database: 2005-Feb-05
Document File: 2 page(s) / 48K

Publishing Venue

IBM

Related People

Herman, RL: AUTHOR

Abstract

A technique is described whereby a circular leaf spring with slotted holes is utilized in the assembly of ballistic wire matrix print head armatures. Also described is the use of an S-shaped wire path for ease of manufacture. The technique enables print heads to be low cost, highly reliable, small in size and light in weight. In the print head, as shown in Fig. 1, circular leaf spring 1, as shown in Fig. 2, is mounted at position 3. The unique feature of the leaf spring 1 is the keyhole slot 2 provided in each leaf section. These slots allow a simple and effective means of attaching the armatures to the respective levers. The S-shaped wire paths 4 (Fig. 1) are used to guide the print wires. This S-shape allows the holes drilled in the top parts of the head to be vertical, instead of at an angle.

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Seven-Wire Print Head

A technique is described whereby a circular leaf spring with slotted holes is utilized in the assembly of ballistic wire matrix print head armatures. Also described is the use of an S-shaped wire path for ease of manufacture. The technique enables print heads to be low cost, highly reliable, small in size and light in weight. In the print head, as shown in Fig. 1, circular leaf spring 1, as shown in Fig. 2, is mounted at position 3. The unique feature of the leaf spring 1 is the keyhole slot 2 provided in each leaf section. These slots allow a simple and effective means of attaching the armatures to the respective levers. The S- shaped wire paths 4 (Fig. 1) are used to guide the print wires. This S-shape allows the holes drilled in the top parts of the head to be vertical, instead of at an angle. This simplifies manufacturing. This concept can be used with print heads having a larger number of print wires.

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