Browse Prior Art Database

Ball Bearing on the Center of a Daisy Printwheel

IP.com Disclosure Number: IPCOM000044754D
Original Publication Date: 1984-Jul-01
Included in the Prior Art Database: 2005-Feb-06
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Rachui, RA: AUTHOR

Abstract

On the face of a daisy printwheel which rotates about its axis in a casting, a force is applied in the direction of this axis. The point of application of the force is opposite to the drive means which are coupled to the wheel through an opening in the casting. To minimize frictional losses at the point of engagement of the force, the printwheel is provided with a bearing at the center of its face.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 100% of the total text.

Page 1 of 1

Ball Bearing on the Center of a Daisy Printwheel

On the face of a daisy printwheel which rotates about its axis in a casting, a force is applied in the direction of this axis. The point of application of the force is opposite to the drive means which are coupled to the wheel through an opening in the casting. To minimize frictional losses at the point of engagement of the force, the printwheel is provided with a bearing at the center of its face.

Fig. 1 shows in a schematic sectional side view printwheel 1 rotating about axis 2. On the outer end of printwheel 1 print characters 3 are provided. The center of the face of printwheel 1 is provided with a ball bearing 4 to minimize frictional force losses when force is exerted in the direction of arrow 5 along axis
2. This ball bearing 4 also facilitates shifting printwheel 1 through an angle and along arc 6 and around point 7.

Fig. 2 shows schematically the shifting of printwheel 1 from its position shown in solid lines into the position 8 shown in dotted lines. Ball bearing 4 on the center of the face of printwheel 1 follows arc 6, and while minimizing frictional force losses also absorbs circular torque.

Disclosed anonymously

1