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Patent EP0077570A1 successfully refreshed from Google Patents.
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EP0077570A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Apparatus for feeding a tape

Assignee: Koyo Jidoki Co Ltd
•
Filing: 1982-10-19
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Granted: —
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Expires: 2002-10-19
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Abstract

Abstract The invention relates to an apparatus for feeding a tape (T) bearing a plurality of patterns and corresponding check marks printed thereon. A small-diameter drum (3) is fixedly mounted on a first shaft (31) and a large diameter drum (2) is fixedly mounted on a second shaft (21) and in contact with said small-diameter drum (3), said large-diameter drum (2) having a slightly longer circumference than said small-diameter drum (3). Furthermore, a feed drum (1) is mounted on said first shaft (31) for feeding the tape (T), and photoelectric means (R) are associated with the path of tape feed for detecting for each pattern the position of a corresponding check mark (M) on the tape with respect to a pretermined reference. Drive means (35) selectively transmit driving force to either of said first and second shafts (21, 31) in accordance with the detected position of the check mark (M).

Inventors

  • 👤 Kyoichi Yamashita

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-05 21:59
CPC Classifications
B; B65; B65H; B65H23/00; B65H23/04; B65H23/18; B65H23/188; B65H23/1882; B65H20/00; B65H20/02

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 123 words
An apparatus for feeding a tape bearing a plurality of patterns and corresponding check marks printed thereon, comprising a small-diameter drum fixedly mounted on a first shaft, a large-diameter drum fixedly mounted on a second shaft and being in contact with said small-diameter drum, said large-diameter drum having a slightly longer circumference than said small-diameter drum, a feed drum mounted on said first shaft for feeding the tape, photoelectric means associated with the path of tape feed for detecting for each pattern the position of a corresponding check mark on the tape with respect to a predetermined reference, and means for selectively transmitting driving force to either of said first and second shafts in accordance with the detected position of the check mark.
Claim 2
Independent Claim 123 words
An apparatus for feeding a tape bearing a plurality of patterns and corresponding check marks printed thereon, comprising a small-diameter drum fixedly mounted on a first shaft, a large-diameter drum fixedly mounted on a second shaft and being in contact with said small-diameter drum, said large-diameter drum having a slightly longer circumference than said small-diameter drum, a feed drum mounted on said first shaft for feeding the tape, photoelectric means associated with the path of tape feed for detecting for each pattern the position of a corresponding check mark on the tape with respect to a predetermined reference, and means for selectively transmitting driving force to either of said first and second shafts in accordance with the detected position of the check mark.
Claim 3
Dependent Claim 63 words
A tape feeding apparatus according to claim 1 wherein said selective transmission means includes unidirectional clutch means associated with the first shaft for transmitting the driving force to the first shaft, and electromagnetic clutch means associated with the second shaft for transmitting the driving force to the second shaft, said electromagnetic clutch means being electrically connected to the output of said photoelectric means.
Claim 4
Dependent Claim 54 words
A tape feeding apparatus according to claim 2 wherein a first drive gear adapted to rotate at a constant speed is mounted on the first shaft via said unidirectional clutch means and a second drive gear in mesh with the first drive gear is mounted on the second shaft via said electromagnetic clutch means.
Claim 5
Dependent Claim 26 words
A tape feeding apparatus according to claim 1 which further comprises an auxiliary drum in contact with said feed drum for frictionally feeding the tape therebetween.
Claim 6
Dependent Claim 27 words
A tape feeding apparatus according to claim 1 wherein said feed drum is replaceable and has a circumference slightly shorter than the standard length of printed patterns.

References Cited (Backward Citations)

DE1774206A1 Cited
DE2149754A1 Cited
CH568924A5 Cited
US3877627A Cited
DE2439180B2 Cited

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