Patent US3797777A successfully refreshed from Google Patents.
US3797777A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape reel and tape reel storing magazine
Assignee: Panasonic Holdings Corp
•
Filing: 1971-04-05
•
Granted: 1974-03-19
•
Expires: 1991-04-05
Abstract
Abstract A tape reel or a tape reel storing magazine of the type in which a leader tape can automatically thread along a predetermined path defined on a recording and reproducing apparatus, said tape reel having a plurality of circumferentially spaced resilient pieces which are provided by a plurality of radial cutouts formed on the outer periphery thereof, said resilient pieces serving to hold the leader tape on the outer peripheral portion of the reel in such a manner that the leader tape can easily be taken out of the reel when the tape is to be unwound.
Inventors
- 👤 H Hosono
- 👤 Y Kudou
- 👤 S Kimura
- 👤 S Minamide
- 👤 J Hukushima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:22
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/26; G03B17/265; G11; G11B; G11B15/00; G11B15/60; G11B15/66; G11B15/67; G11B15/674; G11B23/00; G11B23/02; G11B23/04; G11B23/08; G11B23/107
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
185 words
In a tape reel and magazine combination of the type in which said reel comprises a hub with two axially spaced flanges thereon between which a continuous length of ribbon-like recording medium is adapted to be wound and unwound on said hub, the respective flanges having peripheral portions around which a leader strip attached to and of greater width than said recording medium is adapted to be wound and unwound, and in which said magazine comprises a casing with support means therein for rotatably holding said reel and an aperture through which the recording medium and lead strip are adapted to pass when being wound or unwound with respect to said reel, the improvement where at least one of said flanges is provided with a plurality of radially outwardly extending resilient fingers engageable with an edge of said leader strip, and said tape magazine is provided with yieldable press means adjacent and biased toward said reel for pressing said leader strip into engagement with said resilient fingers and said magazine is also provided with intercepting means for disengaging said leader strip from said resilient fingers.
Claim 2
Dependent Claim
185 words
In a tape reel and magazine combination of the type in which said reel comprises a hub with two axially spaced flanges thereon between which a continuous length of ribbon-like recording medium is adapted to be wound and unwound on said hub, the respective flanges having peripheral portions around which a leader strip attached to and of greater width than said recording medium is adapted to be wound and unwound, and in which said magazine comprises a casing with support means therein for rotatably holding said reel and an aperture through which the recording medium and lead strip are adapted to pass when being wound or unwound with respect to said reel, the improvement where at least one of said flanges is provided with a plurality of radially outwardly extending resilient fingers engageable with an edge of said leader strip, and said tape magazine is provided with yieldable press means adjacent and biased toward said reel for pressing said leader strip into engagement with said resilient fingers and said magazine is also provided with intercepting means for disengaging said leader strip from said resilient fingers.
Claim 3
Dependent Claim
93 words
The tape reel and magazine combination in accordance with claim 1 wherein the intercepting means comprises an elongated leaf spring, said casing being provided with an internal pivot to which one end of said spring is engaged and with a projection adjacent said aperture against which said spring is adapted to retract, said spring having a free end extending beyond said projection for contact with the outer convolution of said leader strip when wound on said reel, said spring being held in resilient tangential contact with said convolution when retracted against said projection.
Claim 4
Dependent Claim
71 words
The tape reel and magazine combination in accordance with claim 1 in which the leader strip has a leading end which is narrower in width than the remaining portion, whereby said leading end is left free of engagement with the resilient fingers so as to permit said leading edge to project somewhat tangentially from the reel so as to be engageable by said intercepting means when the tape reel is unwound.
Claim 5
Dependent Claim
66 words
The tape reel and magazine combination in accordance with claim 3 wherein the intercepting means comprises an integral wall portion of said casing projecting toward the center thereof and defining a guide passage leading to said aperture whereby, when the recording medium is unwound, the free end of the leader strip engages said wall portion and is guided thereby through said aperture out of the magazine.
Claim 6
Dependent Claim
66 words
The tape reel and magazine combination in accordance with claim 1 wherein a stop means is provided in said casing adjacent and spaced from said press means in the direction of the bias of said means and engageable thereby to prevent said means from exerting pressure against the recording medium when the leader strip is not wound on the peripheral portions of the tape reel flanges.
Claim 7
Dependent Claim
49 words
The tape reel and magazine combination in accordance with claim 1 in which the leading end of the leader strip is provided with a plurality of protuberances adapted to space said leading end outwardly from the next inwardly convolution of said strip against which said leading end is wound.
Claim 8
Dependent Claim
84 words
The tape reel and magazine combination in accordance with claim 4 wherein said casing includes a plurality of confronting wall portions defining a guide passage leading from the reel to the aperture, a first portion of said passage having a width greater than that of the leader strip and a second portion of said guide passage having a width greater than the recording medium but less than the leader strip and wherein the intercepting means comprises one of the width defining confronting wall portions.
Claim 9
Dependent Claim
82 words
The tape reel and magazine combination in accordance with claim 1 in which said press means is disposed adjacent said aperture and is adapted by reason of its bias to exert pressure on the leader strip toward the center of the reel at a position opposite to the aperture in the magazine at the point where the leader strip comes into engagement with said reel, whereby the leader strip can be retained against displacement on the peripheral portions of the reel flanges.
Claim 10
Dependent Claim
36 words
The tape reel and magazine combination in accordance with claim 5 in which said press means is of a rigid material, and a spring member is provided for biasing said press means toward said tape reel.
References Cited (Backward Citations)
US3104848A
Cited
US2105238A
Cited
US2614761A
Cited
US3006650A
Cited
US3030231A
Cited
US3150840A
Cited
US3254856A
Cited
US3323746A
Cited
US3379387A
Cited
US3558077A
Cited
US3502283A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-18 | 1977-09-17 | 1978-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-18 | 1981-09-17 | 1982-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-18 | 1985-09-17 | 1986-03-19 | $7700.00 | Window Closed / Lapsed |