Ribbon cassette with ink ribbon slack prevention mechanism

Details Ribbon cassette with ink ribbon slack prevention mechanism Ribbon cassette with ink ribbon slack prevention mechanism

2006-10-31

2006-10-31

Colilla, Daniel J. (Department: 2854)

Typewriting machines

Including interposed inking device for record-medium

Ribbon-feeding mechanism

C400S207000, C400S242000, C400S247000

Reexamination Certificate

active

07128483

ABSTRACT:
A ribbon cassette includes a ribbon supply spool, and a ribbon take up spool that takes up an ink ribbon from the ribbon supply spool by rotating in a first rotation direction. The ribbon take up spool is provided with an engaging portion including first and second walls arranged in the second rotation direction in this order. The first wall is defined along a plane including a rotation axis of the ribbon take up spool. The second wall is inclined to face outside the ribbon take up spool. The ribbon cassette further includes an engaging member. The engaging member resiliently engages with the engaging portion by dropping into a space defined between the first and second walls and thereby prevents the ribbon take up spool from rotating in a second rotation direction opposite to the first rotation direction. The engaging member, however, comes off from the engaging portion when the ribbon take up spool rotates in the first direction.

REFERENCES:
patent: 4074799 (1978-02-01), Hishida et al.
patent: 4521125 (1985-06-01), Turbon
patent: 4609298 (1986-09-01), Shioda
patent: 4798486 (1989-01-01), Kaneko
patent: 4983058 (1991-01-01), Nagae
patent: 5033888 (1991-07-01), Okumura et al.
patent: 5044794 (1991-09-01), Shimoyama et al.
patent: 5085531 (1992-02-01), Gillio
patent: 5240201 (1993-08-01), Gelardi et al.
patent: 5304008 (1994-04-01), Asakura et al.
patent: 5873662 (1999-02-01), Clevinger
patent: 30 03 890 (1981-08-01), None
patent: 0 094 905 (1983-11-01), None
patent: 0344901 (1989-01-01), None
patent: 0 795 415 (1997-09-01), None
patent: A 08-25768 (1996-01-01), None
patent: 08207403 (1996-08-01), None
patent: WO 97/47476 (1997-12-01), None

Affiliated with

Also associated with

Rating

Ribbon cassette with ink ribbon slack prevention mechanism does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ribbon cassette with ink ribbon slack prevention mechanism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ribbon cassette with ink ribbon slack prevention mechanism will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3708286