US3770077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle suspension system
Assignee: Motors Liquidation Co
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Filing: 1972-07-21
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Granted: 1973-11-06
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Expires: 1992-07-21
Abstract
Abstract An improved automobile rear suspension system of the type including an axle carrier assembly having a pinion carrier portion, a pair of coil springs disposed between the carrier assembly and the sprung mass portion of the vehicle, and a plurality of control arms for controlling the orbit of the carrier assembly during jounce and rebound deflection of the latter, the improvement residing in the provision of a cushion bumper assembly disposed on the sprung mass portion and including a pair of bumper members, and a pair of abutments on the pinion carrier portion. Each of the abutments is engageable exclusively on a corresponding one of the bumper members to limit jounce deflection, one of the bumper members being operative only when the axle assembly experiences jounce deflection in a ''''wind-up'''' configuration and other bumper members being operative at all other times so that all available clearance space is utilized for maximizing permissible jounce deflection.
Inventors
- 👤 W Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:22
CPC Classifications
B; B60; B60G; B60G7/00; B60G7/04; B60G2204/00; B60G2204/40; B60G2204/45; B60G2204/4502
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
234 words
In a vehicle suspension system including an axle carrier assembly adapted for jounce and rebound deflection relative to a sprung mass portion of said vehicle and for limited angular displacement relative to said sprung mass portion in a winD-up mode under the influence of a torsional moment in one direction and in a wind-down mode under the influence of a torsional moment in the opposite direction, the improvement comprising, a first abutment rigidly attached to one of said axle carrier and said sprung mass portion, a first cushion bumper rigidly attached to the other of said axle carrier and said sprung mass portion, said first abutment in the absence of angular displacement of said axle carrier in said wind-up mode being engageable exclusively on said first cushion bumper during jounce deflection of said axle carrier thereby to cushioningly limit said jounce deflection while exerting on said axle carrier a torsional moment effecting angular displacement thereof in said wind-down mode, a second abutment rigidly attached to one of said axle carrier and said sprung mass portion, and a second cushion bumper rigidly attached to the other of said axle carrier and said sprung mass portion, said second abutment in the presence of substantial angular displacement of said axle carrier in said wind-up mode being engageable exclusively on said second cushion bumper during jounce deflection of said axle carrier thereby to cushioningly limit said jounce deflection.
Claim 2
Dependent Claim
234 words
In a vehicle suspension system including an axle carrier assembly adapted for jounce and rebound deflection relative to a sprung mass portion of said vehicle and for limited angular displacement relative to said sprung mass portion in a winD-up mode under the influence of a torsional moment in one direction and in a wind-down mode under the influence of a torsional moment in the opposite direction, the improvement comprising, a first abutment rigidly attached to one of said axle carrier and said sprung mass portion, a first cushion bumper rigidly attached to the other of said axle carrier and said sprung mass portion, said first abutment in the absence of angular displacement of said axle carrier in said wind-up mode being engageable exclusively on said first cushion bumper during jounce deflection of said axle carrier thereby to cushioningly limit said jounce deflection while exerting on said axle carrier a torsional moment effecting angular displacement thereof in said wind-down mode, a second abutment rigidly attached to one of said axle carrier and said sprung mass portion, and a second cushion bumper rigidly attached to the other of said axle carrier and said sprung mass portion, said second abutment in the presence of substantial angular displacement of said axle carrier in said wind-up mode being engageable exclusively on said second cushion bumper during jounce deflection of said axle carrier thereby to cushioningly limit said jounce deflection.
Claim 3
Dependent Claim
256 words
In a vehicle suspension system including an axle carrier assembly adapted for jounce and rebound deflection relative to a sprung mass portion of said vehicle and for limited angular displacement relative to said sprung mass portion in a wind-up mode under the influence of a torsional moment in one direction and in a wind-down mode under the influence of a torsional moment in the opposite direction, said axle carrier assembly including a differential pinion carrier portion projecting rigidly therefrom, the improvement comprising, a first abutment rigidly attached to one of said sprung mass portion and said pinion carrier portion, a first cushion bumper rigidly attached to the other of said sprung mass portion and said pinion carrier portion, said first abutment in the absence of angular displacement of said axle carrier in said wind-up mode being engageable exclusively on said first cushion bumper during jounce deflection of said axle carrier thereby to cushioningly limit said jounce deflection of said pinion carrier portion while exerting on said axle carrier a torsional moment effecting angular displacement thereof in said wind-down mode, a second abutment rigidly attached to one of said sprung mass portion and said pinion carrier portion, and a second cushion bumper rigidly attached to the other of said sprung mass portion and said pinion carrier portion, said second abutment in the presence of substantial angular displacement of said axle carrier in said wind-up mode being engageable exclusively on said second cushion bumper during jounce deflection of said axle carrier thereby to cushioningly limit said jounce deflection.
Claim 4
Dependent Claim
256 words
In a vehicle suspension system including an axle carrier assembly adapted for jounce and rebound deflection relative to a sprung mass portion of said vehicle and for limited angular displacement relative to said sprung mass portion in a wind-up mode under the influence of a torsional moment in one direction and in a wind-down mode under the influence of a torsional moment in the opposite direction, said axle carrier assembly including a differential pinion carrier portion projecting rigidly therefrom, the improvement comprising, a first abutment rigidly attached to one of said sprung mass portion and said pinion carrier portion, a first cushion bumper rigidly attached to the other of said sprung mass portion and said pinion carrier portion, said first abutment in the absence of angular displacement of said axle carrier in said wind-up mode being engageable exclusively on said first cushion bumper during jounce deflection of said axle carrier thereby to cushioningly limit said jounce deflection of said pinion carrier portion while exerting on said axle carrier a torsional moment effecting angular displacement thereof in said wind-down mode, a second abutment rigidly attached to one of said sprung mass portion and said pinion carrier portion, and a second cushion bumper rigidly attached to the other of said sprung mass portion and said pinion carrier portion, said second abutment in the presence of substantial angular displacement of said axle carrier in said wind-up mode being engageable exclusively on said second cushion bumper during jounce deflection of said axle carrier thereby to cushioningly limit said jounce deflection.
Claim 5
Dependent Claim
265 words
In a vehicle suspension system including an axle carrier assembly adapted for jounce and rebound deflection relative to a sprung mass portion of said vehicle and for limited angular displacement relative to said sprung mass portion in a wind-up mode under the influence of a torsional moment in one direction and in a wind-down mode under the influence of a torsional moment in the opposite direction, said axle carrier assembly including a differential pinion carrier portion projecting rigidly therefrom and forwardly with respect to said sprung mass portion, the improvement comprising, means on said pinion carrier portion defining a first rigid abutment spaced rearwardly of the distal end of said pinion carrier portion, a second abutment rigidly attached to said pinion carrier portion generally at the distal end thereof, a unitary cushion bumper assembly including a first bumper portion and a second bumper portion, and means rigidly attaching said cushion bumper assembly to said sprung mass portion generally above said pinion carrier portion, said first abutment in the absence of angular displacement of said axle carrier in said wind-up Mode being engageable exclusively on said first cushion bumper during jounce deflection of said axle carrier thereby to cushioningly limit said jounce deflection of said pinion carrier portion while exerting on said axle carrier a torsional moment effecting angular displacement thereof in said wind-down mode and said second abutment in the presence of substantial angular displacement of said axle carrier in said wind-up mode being engageable exclusively on said second cushion bumper during jounce deflection of said axle carrier thereby to cushioningly limit said jounce deflection.
Claim 6
Dependent Claim
265 words
In a vehicle suspension system including an axle carrier assembly adapted for jounce and rebound deflection relative to a sprung mass portion of said vehicle and for limited angular displacement relative to said sprung mass portion in a wind-up mode under the influence of a torsional moment in one direction and in a wind-down mode under the influence of a torsional moment in the opposite direction, said axle carrier assembly including a differential pinion carrier portion projecting rigidly therefrom and forwardly with respect to said sprung mass portion, the improvement comprising, means on said pinion carrier portion defining a first rigid abutment spaced rearwardly of the distal end of said pinion carrier portion, a second abutment rigidly attached to said pinion carrier portion generally at the distal end thereof, a unitary cushion bumper assembly including a first bumper portion and a second bumper portion, and means rigidly attaching said cushion bumper assembly to said sprung mass portion generally above said pinion carrier portion, said first abutment in the absence of angular displacement of said axle carrier in said wind-up Mode being engageable exclusively on said first cushion bumper during jounce deflection of said axle carrier thereby to cushioningly limit said jounce deflection of said pinion carrier portion while exerting on said axle carrier a torsional moment effecting angular displacement thereof in said wind-down mode and said second abutment in the presence of substantial angular displacement of said axle carrier in said wind-up mode being engageable exclusively on said second cushion bumper during jounce deflection of said axle carrier thereby to cushioningly limit said jounce deflection.
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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) | 1976-11-05 | 1977-05-07 | 1977-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-05 | 1981-05-07 | 1981-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-05 | 1985-05-07 | 1985-11-06 | $7700.00 | Window Closed / Lapsed |