Patent US4243247A successfully refreshed from Google Patents.
US4243247A
Expired / Lapsed
US
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Suspension height adjusting mechanism in torsion-bar suspension system
Assignee: Nissan Motor Co Ltd
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Filing: 1978-12-28
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Granted: 1981-01-06
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Expires: 1998-12-28
Abstract
Abstract A sleeve member, fixedly connected to a vehicle body, receives therein the outer end of a torsion bar. Between the outer end of the torsion bar and the sleeve member is fittingly interposed a hollow adapter member in such a manner as to be axially movable but prevented from rotating with respect to the torsion bar and the sleeve member.
Inventors
- 👤 Shunpei Kataoka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:19
CPC Classifications
B; B60; B60G; B60G17/00; B60G17/02; B60G17/025; B60G11/00; B60G11/18; B60G11/20; B60G11/32; B60G11/48; B60G11/60; B60G2204/00; B60G2204/10; B60G2204/12; B60G2204/122; B60G2204/1224; B60G2206/00; B60G2206/01; B60G2206/10; B60G2206/16; B60G2206/162; B60G2206/40; B60G2206/42; B60G2206/427
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
148 words
In a torsion-bar suspension system for a wheeled vehicle including a torque tube rotatably connected at its ends to the body of a vehicle, a suspension arm secured at its one end to the torque tube and rotatably carrying at its other end a road wheel of the vehicle, a bracket secured to the vehicle body and a torsion bar disposed within the torque tube and having one end connected to the torque tube and the other end connected to the bracket, a suspension height adjusting mechanism comprising: a sleeve member receiving therewithin said other end of the torsion bar and secured to said bracket; and a hollow adapter member fittingly interposed between said other end of the torsion bar and said sleeve member in such a manner as to be axially movable but prevented from rotating with respect to both said torsion bar and said sleeve member.
Claim 2
Dependent Claim
148 words
In a torsion-bar suspension system for a wheeled vehicle including a torque tube rotatably connected at its ends to the body of a vehicle, a suspension arm secured at its one end to the torque tube and rotatably carrying at its other end a road wheel of the vehicle, a bracket secured to the vehicle body and a torsion bar disposed within the torque tube and having one end connected to the torque tube and the other end connected to the bracket, a suspension height adjusting mechanism comprising: a sleeve member receiving therewithin said other end of the torsion bar and secured to said bracket; and a hollow adapter member fittingly interposed between said other end of the torsion bar and said sleeve member in such a manner as to be axially movable but prevented from rotating with respect to both said torsion bar and said sleeve member.
Claim 3
Dependent Claim
25 words
A suspension height adjusting mechanism as claimed in claim 1, in which said adapter member is splined to said other end of the torsion bar.
Claim 4
Dependent Claim
27 words
A suspension height adjusting mechanism as claimed in claim 1, in which said adapter member is splined or attached by means of serrations to said sleeve member.
Claim 5
Dependent Claim
51 words
A suspension height adjusting mechanism as claimed in claim 1, in which said adapter member comprises inner and outer splinings which are respectively splined to said other end of the torsion bar and said sleeve member and in which said inner and outer splinings are different in number from each other.
Claim 6
Dependent Claim
28 words
A suspension height adjusting mechanism as claimed in claim 1, in which said adapter member is of a hexagonal external form and is formed with a splined hole.
Claim 7
Dependent Claim
28 words
A suspension height adjusting mechanism as claimed in claim 1, in which said adapter member is of a square external form and is formed with a splined hole.
Claim 8
Dependent Claim
28 words
A suspension height adjusting mechanism as claimed in claim 1, in which said adapter member is of a hexagonal external form and is formed with a hexagonal hole.
Claim 9
Dependent Claim
51 words
A suspension height adjusting mechanism as claimed in claim 7, in which said adapter member is formed with said hexagonal external form and said hexagonal hole in such a manner that the corresponding sides of the two hexagons of said external form and said hole are substantially parallel to each other.
Claim 10
Dependent Claim
50 words
A suspension height adjusting mechanism as claimed in claim 7, in which said adapter member is formed with said hexagonal external form and said hexagonal hole in such a manner that the corresponding sides of the two hexagons of said external form and said hole lack parallelism to each other.
Claim 11
Dependent Claim
24 words
A suspension height adjusting mechanism as claimed in claim 1, in which said sleeve member resiliently rotatably supports one end of said torque tube.
Claim 12
Dependent Claim
40 words
A suspension height adjusting mechanism as claimed in claim 1, in which said sleeve member is shaped to have a stepped hole which provides a shoulder portion for limiting thereat the axial movement of said adapter member in one direction.
Claim 13
Dependent Claim
44 words
A suspension height adjusting mechanism as claimed in claim 11 further comprising a cover plate detachably connected to one end of said sleeve member, said cover plate being cooperative with said shoulder to prevent the axial movement of said adapter member in both directions.
References Cited (Backward Citations)
US2480934A
Cited
US2942871A
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US2855212A
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US3158365A
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US3333865A
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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) | 1984-01-06 | 1984-07-07 | 1985-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-06 | 1988-07-07 | 1989-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-06 | 1992-07-07 | 1993-01-06 | $7700.00 | Window Closed / Lapsed |