Browse Prior Art Database

Daisy Wheel With Twisted Character-Carrying Petals

IP.com Disclosure Number: IPCOM000046566D
Original Publication Date: 1983-Aug-01
Included in the Prior Art Database: 2005-Feb-07
Document File: 2 page(s) / 49K

Publishing Venue

IBM

Related People

Rachui, RA: AUTHOR

Abstract

For forming a daisy print wheel 1 having more characters available on the same circumferential space 1 than usual, twisted petals 2 emanate radially from a central hub 3. The character sets 4 are face-to-face and perpendicular to the wheel plane. The print hammer (not shown) and the petal 2 are so constructed that the petal 2, as indicated by the arrows, can be rotated, by means not shown, clockwise 6, counterclockwise 7 or moved straight 8 depending on the desired character set prior to character marking on a print substance. As shown, the petals 2 are carried by hub 3. The petals 2 are essentially flat, and their innermost part 2A lies in the plane of the wheel 1. They are twisted at 2B by 90Πsuch that the outer extremity 2C is perpendicular to the rotational plane of wheel 1.

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Daisy Wheel With Twisted Character-Carrying Petals

For forming a daisy print wheel 1 having more characters available on the same circumferential space 1 than usual, twisted petals 2 emanate radially from a central hub 3. The character sets 4 are face-to-face and perpendicular to the wheel plane. The print hammer (not shown) and the petal 2 are so constructed that the petal 2, as indicated by the arrows, can be rotated, by means not shown, clockwise 6, counterclockwise 7 or moved straight 8 depending on the desired character set prior to character marking on a print substance. As shown, the petals 2 are carried by hub 3. The petals 2 are essentially flat, and their innermost part 2A lies in the plane of the wheel 1. They are twisted at 2B by 90OE such that the outer extremity 2C is perpendicular to the rotational plane of wheel
1. On the outer extremity 2C characters 4 are formed. Small characters 5 could also be formed on the narrow edges of the petals 2. This arrangement provides roughly twice the number of characters as compared to conventional daisy wheels. The construction of print wheel 1 with the twisted petals 2 also provides the print wheel with a fan function, supplying cooling and air circulation during printing.

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