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    CARTRIDGE FOR CORRECTION MEDIA OR TACKY TAPE WITH A WRAP SPRING
    45.
    发明专利
    CARTRIDGE FOR CORRECTION MEDIA OR TACKY TAPE WITH A WRAP SPRING 未知

    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.

    RANDOM STUFFER RIBBON CARTRIDGE WITH IMPROVED RIBBON EXIT CONTROL
    47.
    发明专利
    RANDOM STUFFER RIBBON CARTRIDGE WITH IMPROVED RIBBON EXIT CONTROL 未知

    公开(公告)号：CA1121754A

    公开(公告)日：1982-04-13

    申请号：CA337841

    申请日：1979-10-17

    Applicant: IBM

    Inventor： SCHAEFER JOHN O

    IPC: B41J32/02 ,  G11B23/12 ,  B41J32/00

    Abstract: RANDOM STUFFER RIBBON CARTRIDGE WITH IMPROVED RIBBON EXIT CONTROL of the Invention An improved ribbon exit control, in combination with a random stuffing ribbon cartridge is disclosed which prevents the accidental jamming of the ribbon at the exit port of the storage chamber. The exit port is formed by two mating members whose surfaces are configured, when mated, to form a slot which is of a curvelinear shape such as the form of an arc of a circle or an angled relatively flat lazy V shape. An alternate form is a slot punched in a one piece member to define the slot. The deformation of the slot from that of a straight line causes the ribbon to buckle as it is pulled from the storage chamber and assume a cross-section other than that of a straight line. This acts to separate the ribbon strand being removed from the chamber, from any other adjacent folds of the ribbon. Since the ribbon strand and the adjacent folds are separated by the deforming of the ribbon it is more difficult for an adjacent fold to be pulled into the exit gate thereby causing a jam. The width of the slot is controlled by width control fingers extending across the end of the slot to an abutment surface. The uniform slot width improves reliability and the width control fingers further act as top and bottom constraints preventing the ribbon from pulling out of the slot and circumventing the exit port. The fingers also regulate not only the slot width but also the uniformity of the slot width top to bottom. LE9-78-025

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