Patent US4046030A successfully refreshed from Google Patents.
US4046030A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Final drive unit
Assignee: Nissan Motor Co Ltd
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Filing: 1976-04-06
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Granted: 1977-09-06
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Expires: 1996-04-06
Abstract
Abstract Driving torque from the propeller shaft is transmitted to the drive pinion which is in constant mesh with the ring gear of the differential assembly while torsional vibration in the drive line is absorbed by the coupler provided in the pinion drive shaft.
Inventors
- 👤 Kunihiko Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:53
CPC Classifications
F; F16; F16F; F16F15/00; F16F15/10; F16F15/14; F16F15/1407; F16F15/1414; F16F15/1435; F16F15/1442; B; B60; B60K; B60K17/00; B60K17/04; B60K17/16; B60K17/22; B60K17/24; F16D; F16D3/00; F16D3/50; F16D3/72; F16D3/74; F16F15/12; F16F15/121; F16F15/124; F16F15/126; F16H; F16H48/00; F16H48/06; F16H48/08; F16C; F16C2326/00; F16C2326/01; F16C2326/06; F16C27/00; F16C27/06; F16C27/066; F16C3/00; F16C3/02; F16H48/38; F16H48/42; F16H2048/423
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
132 words
In a final drive unit of a motor vehicle line, the improvement comprising, in combination, first and second drive shafts substantially in axial alignment with each other and rotatably supported by bearings in a housing, said first drive shaft having a first end portion integrally connected with a drive pinion which is in constant mesh with a ring gear and a second end portion, said second drive shaft having a first end portion interlockingly connected with a pinion drive flange which is rotatably driven by a rear universal joint and a second end portion, a vibration damping coupler for resiliently coupling the second end portion of said first drive shaft with the second end portion of said second drive shaft, and bearing means rotatably supporting said vibration damping coupler in said housing.
Claim 2
Dependent Claim
132 words
In a final drive unit of a motor vehicle line, the improvement comprising, in combination, first and second drive shafts substantially in axial alignment with each other and rotatably supported by bearings in a housing, said first drive shaft having a first end portion integrally connected with a drive pinion which is in constant mesh with a ring gear and a second end portion, said second drive shaft having a first end portion interlockingly connected with a pinion drive flange which is rotatably driven by a rear universal joint and a second end portion, a vibration damping coupler for resiliently coupling the second end portion of said first drive shaft with the second end portion of said second drive shaft, and bearing means rotatably supporting said vibration damping coupler in said housing.
Claim 3
Dependent Claim
29 words
The improvement as claimed in claim 1, in which said bearing means comprises at least one bearing in said housing rotatably supporting said vibration damping coupler in said housing.
Claim 4
Dependent Claim
82 words
The improvement as claimed in claim 1, in which said vibration damping coupler comprises an outer tubular housings, a pair of inner tubular housing each concentrically arranged with respect to said outer tubular housing and axially spaced from each other, each of said inner tubular housings being respectively connected to said first and second drive shafts, and a body or resilient material resiliently interconnecting between the outer surfaces of said inner tubular housings and the inner surface of said outer tubular housing.
Claim 5
Dependent Claim
40 words
The improvement as claimed in claim 3, wherein each of said first and second drive shafts respectively comprises splines on the second end portion thereof, and each of said inner tubular housings respectively comprises splines on the inner surface thereof.
Claim 6
Dependent Claim
39 words
The improvement as claimed in claim 3, in which said body of resilient material comprises on the inner surface thereof a radially inwardly extending flange separating said first and second drive shafts from each other in the axial direction.
Claim 7
Dependent Claim
51 words
The improvement as claimed in claim 3, in which a pair of said inner tubular housings respectively have axially extending end portions which circumferentially overlie and are spaced from each other to abut onto each other when the relative circumferential displacement between said inner tubular housings is above a certain value.
Claim 8
Dependent Claim
79 words
The improvement as claimed in claim 1 wherein said pair of inner tubular members are axially spaced from one another, said body of resilient material having a radially inwardly extending portion extending into the space between said inner tubular members, said first and second drive shafts having their respective second end portions axially spaced from one another, said radially inwardly extending portion of said body of resilient material extending into the space between said first and second drive shaft.
Claim 9
Dependent Claim
63 words
The improvement as claimed in claim 1 wherein said housing comprises a carrier housing and an extension housing mounted on the carrier housing, first bearing means rotatably supporting said first drive shaft in said carrier housing, second bearing means rotatably supporting said second drive shaft in said extension housing, and third bearing means rotatably supporting said vibration damping coupler in said extension housing.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-09-05 | 1981-03-07 | 1981-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-05 | 1985-03-07 | 1985-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-05 | 1989-03-07 | 1989-09-06 | $7700.00 | Window Closed / Lapsed |