Patent US3850357A successfully refreshed from Google Patents.
US3850357A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fast-forward tape drive means for cartridge tape player
Assignee: Motorola Solutions Inc
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Filing: 1974-03-01
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Granted: 1974-11-26
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Expires: 1994-03-01
Abstract
Abstract A cartridge tape drive system comprises a capstan drive shaft, a flywheel mounted thereon, a tape drive motor coupled to the flywheel by means of a belt looped about the flywheel and drive shaft of the tape drive motor and further, a fast-forward tape drive arrangement. The last-mentioned arrangement comprises first and second pulley wheels, one mounted on the capstan shaft an the other on the drive motor output shaft and a pair of oneway clutches. In a preferred embodiment, a first one of the clutches couples the second pulley wheel and motor drive shaft and the second clutch couples the capstan shaft and flywheel. The pulley wheels are coupled by a second belt looped thereabout in a figure eight or crossed over configuration. In normal play, the drive motor is energized in a first sense to rotate the output shaft in a first direction. The first one-way clutch is engaged and the second is disengaged to drive the flywheel and capstan in a first direction at a first playback speed. For fast-forward, the electrical connections to the drive motor are reversed to rotate the output shaft in the opposite direction. At this time, the first one-way clutch is decoupled and the second is engaged to impart to the capstan shaft, through the pulley wheels and crossed over belt, rotation in the first direction, but at a speed greater than the normal playback speed.
Inventors
- 👤 M Lace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:39
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/18; G11B15/26; G11B15/28; G11B15/29; G11B15/44; G11B15/444
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
294 words
In a cartridge tape player, tape drive means including a capstan drive shaft mounted rotatably therein for engaging the pressure roller in a tape cartridge inserted into the player for driving the recording tape therein through the cartridge in a first direction, a flywheel mounted on said capstan shaft, drive motor means including a rotatably driven output drive shaft, a hub mounted on said output drive shaft and first belt means looped about said hub and said flywheel for driving said capstan shaft rotatably in a first direction at a first speed upon electrical energization of said motor means in a first sense, fast-forward tape drive means coupled to said tape drive means and including in combination: first pulley wheel means coupled to said output drive shaft, first one-way clutch means engageable in a first rotatable direction and disengageable in a second rotatable direction coupling said first pulley wheel means to said output drive shaft, second pulley wheel means coupled to said capstan shaft, second one-way clutch means disengageable in said first rotatable direction and engageable in said second rotatable direction coupling one of said flywheel and said hub to said capstan shaft and drive motor means output drive shaft, respectively, second belt means looped about said first and second pulley wheel means for coupling the latter, said second belt means being crossed over in figure eight fashion, said drive motor means driving said first pulley wheel means rotatably in a direction opposite from said first direction of rotation upon energization of said drive motor means in a second, opposite electrical sense, to drive said capstan shaft in said first rotatable direction at a second speed, greater than said first speed for transporting said tape more rapidly through said cartridge in said first direction.
Claim 2
Dependent Claim
294 words
In a cartridge tape player, tape drive means including a capstan drive shaft mounted rotatably therein for engaging the pressure roller in a tape cartridge inserted into the player for driving the recording tape therein through the cartridge in a first direction, a flywheel mounted on said capstan shaft, drive motor means including a rotatably driven output drive shaft, a hub mounted on said output drive shaft and first belt means looped about said hub and said flywheel for driving said capstan shaft rotatably in a first direction at a first speed upon electrical energization of said motor means in a first sense, fast-forward tape drive means coupled to said tape drive means and including in combination: first pulley wheel means coupled to said output drive shaft, first one-way clutch means engageable in a first rotatable direction and disengageable in a second rotatable direction coupling said first pulley wheel means to said output drive shaft, second pulley wheel means coupled to said capstan shaft, second one-way clutch means disengageable in said first rotatable direction and engageable in said second rotatable direction coupling one of said flywheel and said hub to said capstan shaft and drive motor means output drive shaft, respectively, second belt means looped about said first and second pulley wheel means for coupling the latter, said second belt means being crossed over in figure eight fashion, said drive motor means driving said first pulley wheel means rotatably in a direction opposite from said first direction of rotation upon energization of said drive motor means in a second, opposite electrical sense, to drive said capstan shaft in said first rotatable direction at a second speed, greater than said first speed for transporting said tape more rapidly through said cartridge in said first direction.
Claim 3
Dependent Claim
54 words
A cartridge tape player as claimed in claim 1 wherein said second one-way clutch means is interposed between and couples said flywheel and said capstan shaft, and wherein upon energization of said drive motor means in said second electrical sense, said second one-way clutch means is declutched to decouple said flywheel and capstan shaft.
Claim 4
Dependent Claim
27 words
A cartridge tape player as claimed in claim 1 wherein the diameters of said first and second pulley wheels are less than the diameter of said flywheel.
Claim 5
Dependent Claim
22 words
A cartridge tape player as claimed in claim 3 wherein the diameters of said first and second pulley wheels are substantially equal.
Claim 6
Dependent Claim
284 words
In a cartridge tape player, tape drive means including a capstan drive shaft mounted rotatably therein for engaging the pressure roller in a tape cartridge inserted into the player for driving the recording tape therein through the cartridge in a first direction, a flywheel mounted on said capstan shaft, drive motor means including a rotatably driven output shaft, and first belt means looped about said output shaft and said flywheel for driving said capstan shaft rotatably in a first direction at a first speed upon electrical eneRgization of said motor means in a first electrical sense, fast-forward tape drive means coupled to said tape drive means, including in combination: a first pulley wheel coupled to said output drive shaft, a first one-way clutch mechanism engageable in a first rotatable direction and disengageable in a second rotatable direction, coupling said first pulley wheel to said output drive shaft, a second pulley wheel mounted on said capstan shaft for rotation therewith, a second one-way clutch mechanism disengageable in said first rotatable direction and engageable in said second rotatable direction and second belt means looped about said first and second pulley wheels for coupling the latter, said second belt means being crossed over in figure eight fashion, said drive motor means driving said first pulley wheel means rotatably in a direction opposite from said first direction of rotation upon energization of said drive motor means in an opposite electrical sense, said first one-way clutch mechanism being engageable to impart rotation to said first pulley wheel for driving said capstan shaft in said first rotatable direction at a second speed, greater than said first speed for transporting said tape more rapidly through said cartridge in said first direction.
Claim 7
Dependent Claim
284 words
In a cartridge tape player, tape drive means including a capstan drive shaft mounted rotatably therein for engaging the pressure roller in a tape cartridge inserted into the player for driving the recording tape therein through the cartridge in a first direction, a flywheel mounted on said capstan shaft, drive motor means including a rotatably driven output shaft, and first belt means looped about said output shaft and said flywheel for driving said capstan shaft rotatably in a first direction at a first speed upon electrical eneRgization of said motor means in a first electrical sense, fast-forward tape drive means coupled to said tape drive means, including in combination: a first pulley wheel coupled to said output drive shaft, a first one-way clutch mechanism engageable in a first rotatable direction and disengageable in a second rotatable direction, coupling said first pulley wheel to said output drive shaft, a second pulley wheel mounted on said capstan shaft for rotation therewith, a second one-way clutch mechanism disengageable in said first rotatable direction and engageable in said second rotatable direction and second belt means looped about said first and second pulley wheels for coupling the latter, said second belt means being crossed over in figure eight fashion, said drive motor means driving said first pulley wheel means rotatably in a direction opposite from said first direction of rotation upon energization of said drive motor means in an opposite electrical sense, said first one-way clutch mechanism being engageable to impart rotation to said first pulley wheel for driving said capstan shaft in said first rotatable direction at a second speed, greater than said first speed for transporting said tape more rapidly through said cartridge in said first direction.
Claim 8
Dependent Claim
281 words
In a cartridge tape player, tape drive means including a capstan drive shaft mounted rotatably therein for engaging the pressure roller in a tape cartridge inserted into the player for driving the recording tape therein through the cartridge in a first direction, a flywheel mounted on said capstan shaft for rotation, drive motor means including a rotatably driven output shaft and first belt means looped about said output shaft and said flywheel for driving said capstan shaft rotatably in a first direction at a first speed upon energization of said motor means in a first electrical sense, fast-forward tape drive means coupled to said tape drive means and including in combination: a first pulley wheel mounted on said output drive shaft, a second pulley wheel mounted on said capstan shaft, second belt means looped about said first and second pulley wheels for coupling the latter, said second belt means being crossed over in figure eight fashion and clutch means engageable in one rotatable direction and disengageable in a second, opposite rotatable direction, said clutch means interposed between and coupling one of said first and second pulley wheels and said output drive shaft and said capstan shaft, respectively, whereby said drive motor means drives said first pulley wheel means rotatably in a direction opposite from said first direction of rotation upon energization of said drive motor means in a second, opposite electrical sense and said clutch means is engaged to impart rotation to said capstan shaft through said crossed over belt and second pulley wheel in said first rotatable direction at a second speed, greater than said first speed for transporting said tape more rapidly through said cartridge in said first direction.
Claim 9
Dependent Claim
281 words
In a cartridge tape player, tape drive means including a capstan drive shaft mounted rotatably therein for engaging the pressure roller in a tape cartridge inserted into the player for driving the recording tape therein through the cartridge in a first direction, a flywheel mounted on said capstan shaft for rotation, drive motor means including a rotatably driven output shaft and first belt means looped about said output shaft and said flywheel for driving said capstan shaft rotatably in a first direction at a first speed upon energization of said motor means in a first electrical sense, fast-forward tape drive means coupled to said tape drive means and including in combination: a first pulley wheel mounted on said output drive shaft, a second pulley wheel mounted on said capstan shaft, second belt means looped about said first and second pulley wheels for coupling the latter, said second belt means being crossed over in figure eight fashion and clutch means engageable in one rotatable direction and disengageable in a second, opposite rotatable direction, said clutch means interposed between and coupling one of said first and second pulley wheels and said output drive shaft and said capstan shaft, respectively, whereby said drive motor means drives said first pulley wheel means rotatably in a direction opposite from said first direction of rotation upon energization of said drive motor means in a second, opposite electrical sense and said clutch means is engaged to impart rotation to said capstan shaft through said crossed over belt and second pulley wheel in said first rotatable direction at a second speed, greater than said first speed for transporting said tape more rapidly through said cartridge in said first direction.
Claim 10
Dependent Claim
27 words
A cartridge tape player as claimed in claim 6 wherein said clutch means is interposed between and couples said first pulley wheel to said output drive shaft.
Claim 11
Dependent Claim
81 words
A cartridge tape player as claimed in claim 7 further including second clutch means interposed between and coupled to said capstan shaft and said flywheel, said second clutch means being disengageable in said first rotatable direction and engageable in said second rotatable direction for coupling said capstan shaft and flywheel upon energization of said drive motor in said first electrical sense and for decoupling said capstan shaft and flywheel upon energization of said drive motor in said second, opposite electrical sense.
References Cited (Backward Citations)
US3385497A
Cited
US3666153A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-25 | 1978-05-27 | 1978-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-25 | 1982-05-27 | 1982-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-25 | 1986-05-27 | 1986-11-26 | $7700.00 | Window Closed / Lapsed |