US4725259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Belt drive method and apparatus
Assignee: Bando Chemical Industries Ltd
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Filing: 1986-03-27
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Granted: 1988-02-16
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Expires: 2006-03-27
Abstract
Abstract This disclosure relates to a belt-drive method and apparatus wherein the rotational force of a drive shaft is accompanied by minute fluctuations in the angular velocity, and a driven shaft has rotational inertia. A one-way clutch is provided in the belt drive, which forms a selective interruption of the rotational force transmission through the belt drive while the angular velocity at the drive shaft side is decelerating, the force being transmitted only while the angular velocity is increasing.
Inventors
- 👤 Hirofumi Miyata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:03
CPC Classifications
F; F02; F02B; F02B67/00; F02B67/04; F02B67/06; F02B1/00; F02B1/02; F02B1/04
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
105 words
Belt drive apparatus for connection between a first part and a second part, one of said parts being a rotary drive and the other being a rotating driven part, the drive producing minute fluctuations in the angular velocity thereof and the driven part having rotational inertia, said apparatus comprising first and second shafts drivingly connected respectively to said first and second parts, first and second pulleys, a belt drivingly interconnecting said pulleys, said first shaft being drivingly coupled to said first pulley, and a one-way clutch interconnecting said second shaft and said second pulley, said one-way clutch engaging only while said angular velocity is increasing.
Claim 2
Dependent Claim
105 words
Belt drive apparatus for connection between a first part and a second part, one of said parts being a rotary drive and the other being a rotating driven part, the drive producing minute fluctuations in the angular velocity thereof and the driven part having rotational inertia, said apparatus comprising first and second shafts drivingly connected respectively to said first and second parts, first and second pulleys, a belt drivingly interconnecting said pulleys, said first shaft being drivingly coupled to said first pulley, and a one-way clutch interconnecting said second shaft and said second pulley, said one-way clutch engaging only while said angular velocity is increasing.
Claim 3
Dependent Claim
26 words
Apparatus as in claim 1, wherein two of said clutches are provided, one of said clutches being between each of said pulleys and the associated shaft.
Claim 4
Dependent Claim
91 words
An internal combustion engine including belt drive apparatus, comprising a rotary drive shaft and a rotatable driven part, said engine during operation thereof producing minute fluctuations in the angular velocity of said drive shaft, and said driven part having rotational inertia, a driven shaft drivingly connected to said driven part, first and second pulleys operatively coupled to said drive and driven shafts, a belt drivingly interconnecting said pulleys, and at least one one-way clutch between said shafts and said pulleys, said one-way clutch engaging only while said angular velocity is increasing.
Claim 5
Dependent Claim
91 words
An internal combustion engine including belt drive apparatus, comprising a rotary drive shaft and a rotatable driven part, said engine during operation thereof producing minute fluctuations in the angular velocity of said drive shaft, and said driven part having rotational inertia, a driven shaft drivingly connected to said driven part, first and second pulleys operatively coupled to said drive and driven shafts, a belt drivingly interconnecting said pulleys, and at least one one-way clutch between said shafts and said pulleys, said one-way clutch engaging only while said angular velocity is increasing.
Claim 6
Dependent Claim
17 words
Apparatus as in claim 3, wherein said clutch is between said driven shaft and said second pulley.
Claim 7
Dependent Claim
17 words
Apparatus as in claim 3, wherein said clutch is between said drive shaft and said first pulley.
Claim 8
Dependent Claim
26 words
Apparatus as in claim 3, wherein two of said clutches are provided, one of said clutches being between each of said pulleys and the associated shaft.
Claim 9
Dependent Claim
85 words
Belt drive method for connecting a rotary drive and a rotating driven part, the drive producing minute fluctuations in the angular velocity thereof and the driven part having rotational inertia, comprising the steps of connecting a drive shaft to said drive, connecting a driven shaft to said driven part, operatively coupling first and second pulleys to said drive and driven shafts, and providing at least one one-way clutch between said shafts and said pulleys, said one-way clutch engaging only while said angular velocity is increasing.
Claim 10
Dependent Claim
85 words
Belt drive method for connecting a rotary drive and a rotating driven part, the drive producing minute fluctuations in the angular velocity thereof and the driven part having rotational inertia, comprising the steps of connecting a drive shaft to said drive, connecting a driven shaft to said driven part, operatively coupling first and second pulleys to said drive and driven shafts, and providing at least one one-way clutch between said shafts and said pulleys, said one-way clutch engaging only while said angular velocity is increasing.
Claim 11
Dependent Claim
19 words
A method as in claim 7, wherein said clutch is provided between said driven shaft and said second pulley.
Claim 12
Dependent Claim
19 words
A method as in claim 7, wherein said clutch is provided between said drive shaft and said first pulley.
Claim 13
Dependent Claim
27 words
A method as in claim 7, wherein two of said clutches are provided, one of said clutches being between each of said pulleys and the associated shaft.
Claim 14
Dependent Claim
24 words
A method as in claim 7, wherein said drive is an internal combustion engine and said driven part is a generator of said engine.
References Cited (Backward Citations)
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| 3.5 Years (Year 4) | 1991-02-15 | 1991-08-17 | 1992-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-02-15 | 1995-08-17 | 1996-02-16 | $3760.00 | Window Closed / Lapsed |
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