US4266738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape reel
Assignee: Nifco Inc
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Filing: 1979-11-14
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Granted: 1981-05-12
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Expires: 1999-11-14
Abstract
Abstract An improvement in and concerning a tape reel of the rotational assemblage type wherein one of the two flanges of the tape reel is integrally joined to one end of the hub and the other flange is molded separately in such a construction that the reel assemblage is accomplished by applying the separately molded flange to and rotating it relative to the other end of the hub, which improvement comprises means capable of permitting fast retention of the inner end of a tape to be accomplished simultaneously with the work of reel assemblage by the rotation of the separately molded flange.
Inventors
- 👤 Akira Nakagawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:56
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/02; G11B23/037; G11B15/00; G11B15/60; G11B15/66; G11B15/67; G11B15/674
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
205 words
In a tape reel of the rotational assemblage type including two flanges, and a generally hollow hub supporting said flanges in spaced relation, at least one of said two flanges being formed separately from said hub, said at least one flange and said hub each having cooperative engaging means such that assembly of said at least one flange to one end of said reel hub and rotation of said at least one flange relative to said hub establishes tight engagement between the cooperative engaging means, a generally radially disposed slot communicating between the external circumferential surface of said reel hub and its interior, said slot adapted to permit insertion of the inner end of the tape to be wound on the hub, at least one resilient wall blocking radial access to the interior of said hub through said slot and forming a tortuous circumferentially disposed path to the interior of said hub, protuberance means depending from said at least one flange such that as a consequence of the rotational assembly of the flange relative to the hub said protuberance means in cooperation with said at least one resilient wall closes up said circumferentially disposed path and captures said inner end of the tape inserted therein.
Claim 2
Dependent Claim
205 words
In a tape reel of the rotational assemblage type including two flanges, and a generally hollow hub supporting said flanges in spaced relation, at least one of said two flanges being formed separately from said hub, said at least one flange and said hub each having cooperative engaging means such that assembly of said at least one flange to one end of said reel hub and rotation of said at least one flange relative to said hub establishes tight engagement between the cooperative engaging means, a generally radially disposed slot communicating between the external circumferential surface of said reel hub and its interior, said slot adapted to permit insertion of the inner end of the tape to be wound on the hub, at least one resilient wall blocking radial access to the interior of said hub through said slot and forming a tortuous circumferentially disposed path to the interior of said hub, protuberance means depending from said at least one flange such that as a consequence of the rotational assembly of the flange relative to the hub said protuberance means in cooperation with said at least one resilient wall closes up said circumferentially disposed path and captures said inner end of the tape inserted therein.
Claim 3
Dependent Claim
45 words
The tape reel according to claim 1 wherein the engaging protuberance means comes into direct contact with the radial inner surfaces of said at least one wall and pushes said at least one resilient wall outwardly in the radial direction and closes said circumferential path.
Claim 4
Dependent Claim
29 words
The tape reel according to claim 1, wherein the engaging protuberance means moves into said circumferentially disposed path and forces said inner tape end directly against said resilient wall.
Claim 5
Dependent Claim
39 words
A tape reel according to claim 2, wherein said at least one resilient wall is generally a resilient cantilever arm having primary means at its free end that cooperate with fixed means to form a tortuous path gripping means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-05-11 | 1984-11-10 | 1985-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-05-11 | 1988-11-10 | 1989-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-05-11 | 1992-11-10 | 1993-05-12 | $7700.00 | Window Closed / Lapsed |