US4196873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two tape-cartridge type magnetic-tape recording/reproducing apparatus
Assignee: NEC Corp
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Filing: 1978-12-19
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Granted: 1980-04-08
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Expires: 1998-12-19
Abstract
Abstract A two tape-cartridge-type magnetic recording/reproducing unit is provided which includes tape-guide members for directing leader tape from a supply cartridge into the tape path, and an arm having a roller thereon for pressing the leader tape entering a take-up cartridge against the reel hub therein, to enable the tape to be securely wound on the reel hub of the tape-up cartridge. For tape replacement after a tape length has been utilized, there is no need to rewind the used tape on the reel of the supply cartridge.
Inventors
- 👤 Kohmin Kudoh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:34
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/60; G11B15/66; G11B15/67; G11B23/00; G11B23/02; G11B23/04; G11B23/08; G11B23/107
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
223 words
A two-cartridge type magnetic-tape recording/reproducing apparatus, comprising a pair of cartridge holders provided on the supply and take-up sides of the apparatus to accommodate separate tape cartridges, tape-guide means for guiding leader tape from the supply-side tape cartridge into the path of tape travel, and means for pressing leader tape entering the take-up side cartridge against the reel hub provided therein to enable leader tape to be securely wound in the take-up side tape cartridge, said last-defined means including a pressure arm pivotally mounted external to the take-up cartridge holder, a take-up cartridge including a reel hub and having a side opening to insertably receive the free end of said arm, said take-up cartridge being removably received in said take-up cartridge holder, and selectively operable means for displacing the free end of said arm into squeezed leader-tape engagement with the take-up reel hub; said take-up cartridge including a leaf spring mounted to the tape cartridge near the point of leader-tape entry and arched inwardly into flexed tangency with the reel hub in readiness to receive entering leader tape, a tape-contacting pressure roller mounted to the free end of said arm, said spring having a locally slotted region of width exceeding the width of the pressure roller, and said pressure roller extending at least in part through the locally slotted region of said spring.
Claim 2
Dependent Claim
223 words
A two-cartridge type magnetic-tape recording/reproducing apparatus, comprising a pair of cartridge holders provided on the supply and take-up sides of the apparatus to accommodate separate tape cartridges, tape-guide means for guiding leader tape from the supply-side tape cartridge into the path of tape travel, and means for pressing leader tape entering the take-up side cartridge against the reel hub provided therein to enable leader tape to be securely wound in the take-up side tape cartridge, said last-defined means including a pressure arm pivotally mounted external to the take-up cartridge holder, a take-up cartridge including a reel hub and having a side opening to insertably receive the free end of said arm, said take-up cartridge being removably received in said take-up cartridge holder, and selectively operable means for displacing the free end of said arm into squeezed leader-tape engagement with the take-up reel hub; said take-up cartridge including a leaf spring mounted to the tape cartridge near the point of leader-tape entry and arched inwardly into flexed tangency with the reel hub in readiness to receive entering leader tape, a tape-contacting pressure roller mounted to the free end of said arm, said spring having a locally slotted region of width exceeding the width of the pressure roller, and said pressure roller extending at least in part through the locally slotted region of said spring.
Claim 3
Dependent Claim
55 words
Apparatus according to claim 1, in which said tape-guide means includes leader-tape-threading means and tape-feeding means, said threading means being operative for an initial period of time and said tape-feeding means being thereafter operative, and means coordinating operative leader-tape pressing by said pressing means substantially only for the period of operation of said threading means.
Claim 4
Dependent Claim
77 words
Apparatus according to claim 1, wherein the take-up and supply cartridges are mechanical duplicates of each other, and further comprising a capstan for transporting magnetic tape along said path, said tape-guide means further comprising roller means insertably receivable in the supply cartridge for delivering the leader tape from the supply cartridge and means for transferring rotation of said capstan to said delivering-roller means, whereby the supply and take-up cartridges may be interchangeably used for their respective functions.
References Cited (Backward Citations)
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Cited
US3318548A
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US3516738A
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US3586430A
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Cited
US3704836A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-04-08 | 1983-10-08 | 1984-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-04-08 | 1987-10-08 | 1988-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-04-08 | 1991-10-08 | 1992-04-08 | $7700.00 | Window Closed / Lapsed |