US3913868A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape take-up device
Assignee: OSAWA SEIMITSU KOGYO (OSAWA PRECISION INDUSTRIES LTD) KK
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Filing: 1974-08-28
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Granted: 1975-10-21
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Expires: 1994-08-28
Abstract
Abstract Disclosed is an improvement in a take-up assembly for smoothing the operation of a tendency driven take-up for winding an elongated web which is transported toward the take-up at a controlled rate less than the maximum rate of the take-up device, by interposing solid lubricant discs between driving and driven components so that slip-stick action is substantially eliminated.
Inventors
- 👤 Yukio Katahira
- 👤 Seiichi Saito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:36
CPC Classifications
G; G03; G03B; G03B1/00; G03B1/40; Y; Y10; Y10S; Y10S242/00; Y10S242/914
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
152 words
In a take-up assembly for an apparatus handling an elongated web to be wound from a controlled transport onto a take-up by a continuously driven take-up assembly, the improvement comprising: a rotating driving means; a first rotatable member driven by said driving means; means biasing said first rotatable member into frictional engagement with said driving means; a second rotatable member driven by said first rotatable member by friction; a solid lubricant member interposed between said first and second rotatable members to prevent stick-slip action from occuring between said relatively rotatable members when one of said rotatable members is restrained or released by transport of a length of web to said take-up assembly by controlled transport, and a metal washer interposed between one of said rotatable members and said solid lubricant member to reduce wear of said solid lubricant member due to relative rotation of said rotatable member and said solid lubricant member.
Claim 2
Dependent Claim
152 words
In a take-up assembly for an apparatus handling an elongated web to be wound from a controlled transport onto a take-up by a continuously driven take-up assembly, the improvement comprising: a rotating driving means; a first rotatable member driven by said driving means; means biasing said first rotatable member into frictional engagement with said driving means; a second rotatable member driven by said first rotatable member by friction; a solid lubricant member interposed between said first and second rotatable members to prevent stick-slip action from occuring between said relatively rotatable members when one of said rotatable members is restrained or released by transport of a length of web to said take-up assembly by controlled transport, and a metal washer interposed between one of said rotatable members and said solid lubricant member to reduce wear of said solid lubricant member due to relative rotation of said rotatable member and said solid lubricant member.
Claim 3
Dependent Claim
24 words
An improvement in a take-up assembly as in claim 1 wherein said solid lubricant member is a thermoplastic resin such as a fluorocarbon resin.
Claim 4
Dependent Claim
48 words
An improvement in a take-up assembly as in claim 1 wherein at least one of said rotatable members is provided a roughened surface to cause rotation of said solid lubricant member therewith, said opposite surface of solid lubricant member engaging a non-roughened surface of said other rotatable member.
Claim 5
Dependent Claim
187 words
In a take-up assembly for an apparatus handling an elongated web to be wound from a controlled transport onto a take-up by a continuously driven take-up assembly, the improvement comprising: a rotating driving means; a first rotatable member driven by said driving means; means biasing said first rotatable member into frictional engagement with said driving means; a second rotatable member driven by said first rotatable member by friction; a pawl disc drivable by said rotatable members; and at least two solid lubricant members configured as rings formeD of a thermoplastic resin such as a fluorocarbon resin are interposed between said first and said second rotatable members and said pawl disc to prevent stick-slip action from occuring between said relatively rotatable members when one of said rotatable members is restrained or released by transport of a length of web to said take-up assembly by controlled transport, and at least one of the surfaces of said rotatable members is provided a roughened surface to cause rotation of said solid lubricant member therewith, said opposite surface of said solid lubricant member engaging a non-roughened surface of said other rotatable member.
Claim 6
Dependent Claim
187 words
In a take-up assembly for an apparatus handling an elongated web to be wound from a controlled transport onto a take-up by a continuously driven take-up assembly, the improvement comprising: a rotating driving means; a first rotatable member driven by said driving means; means biasing said first rotatable member into frictional engagement with said driving means; a second rotatable member driven by said first rotatable member by friction; a pawl disc drivable by said rotatable members; and at least two solid lubricant members configured as rings formeD of a thermoplastic resin such as a fluorocarbon resin are interposed between said first and said second rotatable members and said pawl disc to prevent stick-slip action from occuring between said relatively rotatable members when one of said rotatable members is restrained or released by transport of a length of web to said take-up assembly by controlled transport, and at least one of the surfaces of said rotatable members is provided a roughened surface to cause rotation of said solid lubricant member therewith, said opposite surface of said solid lubricant member engaging a non-roughened surface of said other rotatable member.
Claim 7
Dependent Claim
86 words
An improvement in a take-up assembly as in claim 4 wherein a metal washer and at least two solid lubricant members configured as rings formed of a thermoplastic resin such as a fluorocarbon resin are interposed between said rotatable members and said pawl disc, and at least one of the surfaces of said rotatable members is provided a roughened surface to cause rotation of said solid lubricant member therewith, said opposite surface of said solid lubricant member engaging a non-roughened surface of said other rotatable member.
References Cited (Backward Citations)
US3681940A
Cited
US3664472A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-10-20 | 1979-04-21 | 1979-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-20 | 1983-04-21 | 1983-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-20 | 1987-04-21 | 1987-10-21 | $7700.00 | Window Closed / Lapsed |