US3693746A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automotive suspension mechanism
Assignee: Individual
•
Filing: 1969-11-05
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Granted: 1972-09-26
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Expires: 1989-11-05
Abstract
Abstract A rear suspension mechanism of motor vehicles having a pair of trailing arms and a pair of axle drive shafts with inner and outer universal joints, each of the trailing arms being made up of an inner and outer leaves connected with each other through a connecting member connected to the wheel hub and the axle drive shaft being of the type that no positively sliding mechanism is involved. The suspension mechanism permits the driving wheels to assume proper camber and steer angles and to move in the foreand-aft direction of the vehicle.
Inventors
- 👤 Akira Yamamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:14
CPC Classifications
B; B60; B60G; B60G7/00; B60G7/001; B60G3/00; B60G3/18; B60G3/20; B60G3/22; B60G3/225; B60G3/24; B60G2200/00; B60G2200/10; B60G2200/14; B60G2200/141; B60G2200/40; B60G2200/422; B60G2202/00; B60G2202/10; B60G2202/12; B60G2202/20; B60G2202/24; B60G2204/00; B60G2204/10; B60G2204/12; B60G2204/124; B60G2204/1244; B60G2206/00; B60G2206/01; B60G2206/10
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
260 words
In a motor vehicle the combination of chassis means comprising a main frame, a subframe and a final drive unit including a housing and a differential therein; a rear wheel having a spindle, drive means connecting said wheel spindle with said differential, a wheel hub rotatably mounting said spindle, a connecting member extending approximately horizontally transversely of said vehicle inwardly from said hub and having an inner end and an outer end rigidly fixed to said hub, a flat outer leaf spring extending forwardly from said hub in a direction generally fore-and-aft of the vehicle and disposed in a vertical plane, the rear end of said outer leaf spring being rigidly fixed to said hub, a flat inner leaf spring extending forwardly from the inner end of said connecting member in a direction generally fore-and-aft of the vehicle and disposed in a vertical plane, the rear end of said inner leaf spring being connected to the inner end of said connecting member, means pivotally connecting the front end of said outer leaf spring to one of said main frame and subframe of said chassis means, and means pivotally connecting the front end of said inner leaf spring to one of said subframe and final drive unit housing of said chassis means, the pivot points of said outer and inner leaf springs being disposed on a line which is inclined inwardly and rearwardly with respect to the direction of forward motion of the vehicle, and suspension spring means acting between said hub and said chassis means for spring suspending said wheel.
Claim 2
Dependent Claim
260 words
In a motor vehicle the combination of chassis means comprising a main frame, a subframe and a final drive unit including a housing and a differential therein; a rear wheel having a spindle, drive means connecting said wheel spindle with said differential, a wheel hub rotatably mounting said spindle, a connecting member extending approximately horizontally transversely of said vehicle inwardly from said hub and having an inner end and an outer end rigidly fixed to said hub, a flat outer leaf spring extending forwardly from said hub in a direction generally fore-and-aft of the vehicle and disposed in a vertical plane, the rear end of said outer leaf spring being rigidly fixed to said hub, a flat inner leaf spring extending forwardly from the inner end of said connecting member in a direction generally fore-and-aft of the vehicle and disposed in a vertical plane, the rear end of said inner leaf spring being connected to the inner end of said connecting member, means pivotally connecting the front end of said outer leaf spring to one of said main frame and subframe of said chassis means, and means pivotally connecting the front end of said inner leaf spring to one of said subframe and final drive unit housing of said chassis means, the pivot points of said outer and inner leaf springs being disposed on a line which is inclined inwardly and rearwardly with respect to the direction of forward motion of the vehicle, and suspension spring means acting between said hub and said chassis means for spring suspending said wheel.
Claim 3
Dependent Claim
29 words
A combination according to claim 1, in which said means pivotally connecting the front ends of said outer and inner leaf springs to said chassis means comprise rubber mounts.
Claim 4
Dependent Claim
43 words
A combination according to claim 1, in which said pivotally connecting means pivotally connect the front end of said outer leaf spring to said main frame and pivotally connect the front end of said inner leaf spring to said final drive unit housing.
Claim 5
Dependent Claim
20 words
A combination according to claim 3, in which said final drive unit housing is resiliently connected with said main frame.
Claim 6
Dependent Claim
64 words
A combination according to claim 1, in which said drive means comprises a shaft with an outer universal joint connecting said shaft with said wheel spindle and an inner universal joint connecting said shaft with said differential and in which said line on which said pivot points of said leaf springs are disposed extends in front of and spaced from said inner universal joint.
Claim 7
Dependent Claim
51 words
A combination according to claim 1, in which said suspension spring means acts on said hub at a point of juncture of said hub with said connecting member, which point is disposed approximately on a line connecting the pivot point of said inner leaf spring with the center of said wheel.
Claim 8
Dependent Claim
19 words
A combination according to claim 6, in which said suspension spring means comprises a substantially vertical coil compression spring.
Claim 9
Dependent Claim
27 words
A combination according to claim 1, in which said line on which said pivot points of said inner and outer leaf springs are disposed is substantially horizontal.
Claim 10
Dependent Claim
53 words
A combination according to claim 1, in which said outer leaf spring lies in a first vertical plane parallel to the fore-and-aft axis of the vehicle and said inner leaf spring lies in a second vertical plane inclined to the fore-and-aft axis of the vehicle and diverging forwardly from said first vertical plane.
Claim 11
Dependent Claim
24 words
A combination according to claim 1, in which said pivotally connecting means pivotally connect the front ends of said leaf springs to said subframe.
Claim 12
Dependent Claim
17 words
A combination according to claim 10, in which said subframe is resiliently connected to said main frame.
Claim 13
Dependent Claim
23 words
A combination according to claim 1, in which said inner and outer leaf springs are disposed in vertical planes parallel to one another.
Claim 14
Dependent Claim
31 words
A combination according to claIm 12, in which said inner and outer leaf springs extend substantially perpendicularly to said line on which said pivot points of said leaf springs are disposed.
Claim 15
Dependent Claim
20 words
A combination according to claim 12, in which said vertical planes are parallel to the fore-and-aft axis of said vehicle.
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) | 1975-09-26 | 1976-03-27 | 1976-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-26 | 1980-03-27 | 1980-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-26 | 1984-03-27 | 1984-09-26 | $7700.00 | Window Closed / Lapsed |