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Patent US3584713A successfully refreshed from Google Patents.
US3584713A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic four-wheel drive mechanism
Assignee: Aisin Corp
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Filing: 1969-06-02
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Granted: 1971-06-15
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Expires: 1989-06-02
Abstract
Abstract An automatic automotive four-wheel drive mechanism, which is provided with a flywheel mass-type sensor operatively connected with the drive and driven wheels for sensing occasional speed differential therebetween, a two-way clutch being mechanically coupled with said sensor and adapted for actuation to couple said both shafts when the speed differential should exceed a predetermined value.
Inventors
- 👤 Tatsuo Tani
- 👤 Yutaka Momose
- 👤 Junichiro Oya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:12
CPC Classifications
F; F16; F16D; F16D41/00; F16D41/06; F16D41/064; F16D41/066; F16D41/067; B; B60; B60K; B60K17/00; B60K17/34; B60K17/348; B60K17/35; B60K17/3505; F16D15/00; G; G01; G01R; G01R29/00; G01R29/18
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
148 words
An automatic drive mechanism, comprising: first and second shafts; first and second relatively rotatable coupling members operatively connected respectively to the first and second shafts; an inertia sensor means for sensing a relative acceleration between the first and second coupling members and moving relative to the first and second coupling members to effectuate a driving connection of the first and second coupling members including a flywheel mass located about one of the coupling members and a spring means for operatively connecting the flywheel mass with the coupling member it surrounds; a twoway clutch means for coupling the first and second coupling members in response to the movement of the inertia sensor means and comprising a two-way clutch operatively connected to the flywheel mass, whereby a predetermined relative acceleration will activate the two-way clutch means to couple the first and second shafts through the first and second coupling members.
Claim 2
Dependent Claim
148 words
An automatic drive mechanism, comprising: first and second shafts; first and second relatively rotatable coupling members operatively connected respectively to the first and second shafts; an inertia sensor means for sensing a relative acceleration between the first and second coupling members and moving relative to the first and second coupling members to effectuate a driving connection of the first and second coupling members including a flywheel mass located about one of the coupling members and a spring means for operatively connecting the flywheel mass with the coupling member it surrounds; a twoway clutch means for coupling the first and second coupling members in response to the movement of the inertia sensor means and comprising a two-way clutch operatively connected to the flywheel mass, whereby a predetermined relative acceleration will activate the two-way clutch means to couple the first and second shafts through the first and second coupling members.
Claim 3
Dependent Claim
44 words
An automatic drive mechanism as in claim 1 where the two-way clutch means further comprises a cage; a plurality of rollers mounted rotatably therein and a hexagonal cam, the cage being supported by the flywheel mass adjacent the hexagonal cam on one coupling member.
Claim 4
Dependent Claim
26 words
An automatic drive mechanism as in claim 2 wherein one of the coupling members includes a race portion for the rollers of the two-way clutch means.
Claim 5
Dependent Claim
33 words
An automatic drive mechanism as in claim 2 wherein the first relatively rotatable coupling member surrounds the second relatively rotatable coupling member and the hexagonal cam is located on the first coupling member.
Claim 6
Dependent Claim
33 words
An automatic drive mechanism as in claim 2 wherein the first relatively rotatable coupling member surrounds the second relatively rotatable coupling member and the hexagonal cam is located on the second coupling member.
Claim 7
Dependent Claim
148 words
An automatic drive mechanism, comprising: first and second shafts; first and second relatively rotatable coupling members operatively connected respectively to said first and second shafts; an inertia sensor means for sensing an acceleration or deceleration of said first shaft and operating relative to said first and second coupling members to effectuate a driving connection of the first and second shafts, said inertia sensor means including a flywheel mass located about one of the coupling members and a spring means for operatively connecting the flywheel mass with the coupling member it surrounds; a two-way clutch means for coupling said first and second coupling members in response to the movement of the inertia sensor means, said two-way clutch being adapted for coupling said first and second shafts through said first and second coupling members when the rotational acceleration or deceleration of said first shaft becomes larger than a predetermined value.
Claim 8
Dependent Claim
148 words
An automatic drive mechanism, comprising: first and second shafts; first and second relatively rotatable coupling members operatively connected respectively to said first and second shafts; an inertia sensor means for sensing an acceleration or deceleration of said first shaft and operating relative to said first and second coupling members to effectuate a driving connection of the first and second shafts, said inertia sensor means including a flywheel mass located about one of the coupling members and a spring means for operatively connecting the flywheel mass with the coupling member it surrounds; a two-way clutch means for coupling said first and second coupling members in response to the movement of the inertia sensor means, said two-way clutch being adapted for coupling said first and second shafts through said first and second coupling members when the rotational acceleration or deceleration of said first shaft becomes larger than a predetermined value.
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) | 1974-06-14 | 1974-12-14 | 1975-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-14 | 1978-12-14 | 1979-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-14 | 1982-12-14 | 1983-06-15 | $7700.00 | Window Closed / Lapsed |