公开(公告)号：BR8104009A

公开(公告)日：1982-03-16

申请号：BR8104009

申请日：1981-06-25

Applicant: IBM

Inventor： SCHAEFER JOHN O ,  FIELD THOMAS R ,  JAGODZINSKI PETER F ,  KING JAMES F

IPC: B41J29/36 ,  B41J31/09 ,  B41J32/00 ,  B65H75/02

Abstract: Web cartridge (10) having a supply spool (12), a take-up spool (34) and a web extending from the supply spool (12) to the take-up spool (34) through exit (18) and the entrance (26) apertures to form an exposed portion of the web exterior to the cartridge. A beam spring (40) supported by the cartridge, has one end (44) positioned in squeegeeing relation to the convolutions of the web accumulated on the take-up spool (34) for forcing the web against the convolutions, the end (44) being positioned to be the only portion of the spring (40) engaging the web in order to remove buckles in the last convolution and thus preventing voids and wrinkles in the spool.

公开(公告)号：AU539240B2

公开(公告)日：1984-09-20

申请号：AU7211881

申请日：1981-06-24

Applicant: IBM

Inventor： FIELD THOMAS R ,  JAGODZINSKI PETER F ,  KING JAMES F

IPC: B41J29/36 ,  B41J31/09 ,  B41J32/00 ,  B65H75/02

Abstract: Web cartridge (10) having a supply spool (12), a take-up spool (34) and a web extending from the supply spool (12) to the take-up spool (34) through exit (18) and the entrance (26) apertures to form an exposed portion of the web exterior to the cartridge. A beam spring (40) supported by the cartridge, has one end (44) positioned in squeegeeing relation to the convolutions of the web accumulated on the take-up spool (34) for forcing the web against the convolutions, the end (44) being positioned to be the only portion of the spring (40) engaging the web in order to remove buckles in the last convolution and thus preventing voids and wrinkles in the spool.

公开(公告)号：CA1168179A

公开(公告)日：1984-05-29

申请号：CA374685

申请日：1981-04-03

Applicant: IBM

Inventor： JAGODZINSKI PETER F ,  FIELD THOMAS R ,  PATRICK CARL D

IPC: B65H23/06 ,  B41J32/00 ,  B41J33/00 ,  B41J33/16 ,  B41J33/52 ,  B65H75/02 ,  B41J35/28 ,  B41J32/02

Abstract: ANTI-REVERSAL BACKCHECK FOR PRINTER RIBBON CARTRIDGE TAKEUP SPOOL In a typewriter ribbon cartridge, it is necessary to maintain tension on the span of ribbon extending outside the cartridge to prevent tangling and to insure high print quality during machine operation. One technique for insuring that adequate tension is maintained is disclosed herein as an anti-backup back check device. Connected to the takeup spool of the ribbon cartridge is a disc member supporting thereon a pair of thin flexible resilient arms with outwardly oriented pointed ends. These ends formed in the shape of points engage ratchet teeth formed around the interior surface of a cylinder. The cylinder is formed as a part of the ribbon cartridge and, thus, is permanently positioned and fixed with respect to it. As the takeup spool disc and arms are rotated by the ribbon feed mechanism, the arms will flex and permit a rotation of the disc and takeup spool with a minimal drag force. Upon reversal, the points on the ends of the arms engage the ratchet teeth and the arms become compression columns resisting the rotation of the disc and spool. The center of the disc and the takeup spool are free floating within reasonable physical constraints. The teeth of the arms are positioned such that they are one-half tooth pitch out of phase to insure that one tooth is always in engagement with a tip of one of the two pawls.

公开(公告)号：AU537114B2

公开(公告)日：1984-06-07

申请号：AU7133781

申请日：1981-06-04

Applicant: IBM

Inventor： FIELD THOMAS R ,  JAGODZINSKI PETER F ,  PATRICK CARL D

IPC: B65H23/06 ,  B41J32/00 ,  B41J33/00 ,  B41J33/16 ,  B41J33/52 ,  B65H75/02

Abstract: Connected to the take-up spool (26) of the ribbon cartridge (10) is a disc member (28) supporting a pair of flexible arms (32) with outwardly oriented pointed ends (34). Ends (34) engage ratchet teeth (44) formed on the internal surface of a cylinder (42) forming part of, or attached to, the ribbon cartridge (10). As disc (28) and arms (32) are rotated by the ribbon feed mechanism, arms (32) will flex and permit a rotation of disc (28) and take-up spool (26) with a minimal drag force. Upon reversal, the ends (34) of arms (32) engage ratchet teeth (44) and arms (32) become compression columns resisting the rotation of disc (28) and spool (26). Ends (34) of arms (32) are positioned such that they are one-half tooth out of phase to ensure that one tooth is always in engagement with the end (34) of one of the two arms (32).

公开(公告)号：CA1158589A

公开(公告)日：1983-12-13

申请号：CA379122

申请日：1981-06-05

Applicant: IBM

Inventor： FIELD THOMAS R ,  JAGODZINSKI PETER F ,  KING JAMES F ,  SCHAEFER JOHN O

IPC: B41J29/36 ,  B41J31/09 ,  B41J32/00 ,  B65H75/02 ,  B41J29/16

Abstract: LE9-80-019 CARTRIDGE FOR CORRECTION MEDIA OR TACKY TAPE WITH A WRAP SPRING A typewriter correction tape cartridge for holding and feeding correction tape for a correcting typewriter is improved by the addition of a beam spring cantilever supported such that one end of the beam spring wipes the correction tape onto the takeup spool. This will act to eliminate bubbles, wrinkles and crimps in the tape as it is placed in a new convolution on the spool and will thus reduce the outside diameter of the ultimate disc of used tape. The advantage of this spring is that a reduced size cartridge may be used while utilizing the entire volume of tape supplied on the supply side of the cartridge and, secondly, a more reliable takeup is accomplished due to the elimination of irregularities in the takeup disc. Where space considerations dictate that the spring be bent back sufficiently to accommodate a full spool without contacting the disc of ribbon accumulated on the takeup spool, the cross section of the spring, at a point near the anchor point, may be reduced by notching to provide a stress concentrated flex point and allow the spring member to still perform its function without premature engagement with the disc at a point other than at the wiper end.