Patent US3893701A successfully refreshed from Google Patents.
US3893701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wheel suspension for vehicles with an elastic toe-in change
Assignee: Dr Ing HCF Porsche AG
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Filing: 1973-11-16
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Granted: 1975-07-08
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Expires: 1993-11-16
Abstract
Abstract A wheel suspension for vehicles which has an elastic toe-in change and approximately horizontal pivot axes of the guide members at the vehicle body; one guide arm which consists of a leaf spring is thereby connected with another relatively rigid guide arm to provide a relatively soft pivotal action by way of a joint located at the ends of the guide arms opposite their pivotal connection at the vehicle body.
Inventors
- 👤 Wilhelm Kroniger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:55
CPC Classifications
B; B60; B60G; B60G3/00; B60G3/18; B60G3/28; B60G2200/00; B60G2200/10; B60G2200/13; B60G2200/132; B60G2200/1322; B60G2200/1324; B60G2200/40; B60G2200/462
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
158 words
A wheel suspension for vehicles having an elastic toe-in change which comprises guide means including guide arm means pivotally connected at a relatively fixed part and operatively connected with a wheel carrier means for guiding the wheel with respect to the relatively fixed part of the vehicle, characterized in that one guide arm consists of a leaf spring and is operatively connected with a relatively rigid guide arm means, and in that said guide arm means are connected with each other at the side tHereof, opposite the pivotal connection of the guide means at the relatively fixed part, by way of a joint means effectively providing a substantially vertical pivot axis located substantially in the wheel center plane passing through the point of contact of the wheel with the road surface to effect a defined toe-in of the wheel when lateral forces occur and to prevent changes in wheel position in the toe-out direction when peripheral forces occur.
Claim 2
Dependent Claim
158 words
A wheel suspension for vehicles having an elastic toe-in change which comprises guide means including guide arm means pivotally connected at a relatively fixed part and operatively connected with a wheel carrier means for guiding the wheel with respect to the relatively fixed part of the vehicle, characterized in that one guide arm consists of a leaf spring and is operatively connected with a relatively rigid guide arm means, and in that said guide arm means are connected with each other at the side tHereof, opposite the pivotal connection of the guide means at the relatively fixed part, by way of a joint means effectively providing a substantially vertical pivot axis located substantially in the wheel center plane passing through the point of contact of the wheel with the road surface to effect a defined toe-in of the wheel when lateral forces occur and to prevent changes in wheel position in the toe-out direction when peripheral forces occur.
Claim 3
Dependent Claim
22 words
A wheel suspension according to claim 1, characterized by guide means having approximately horizontal pivot axes at the relatively fixed vehicle part.
Claim 4
Dependent Claim
18 words
A wheel suspension according to claim 2, characterized in that the relatively fixed part is the vehicle body.
Claim 5
Dependent Claim
52 words
A wheel suspension according to claim 1, characterized in that the substantially vertical pivot axis about which said one guide arm means, constructed as a leaf spring, is pivoted comprises an elastic bending joint means which is effectively constituted by a connection of the two free ends of the guide arm means.
Claim 6
Dependent Claim
50 words
A wheel suspension for vehicles including a cross guide means according to claim 1, characterized in that the forward guide arm means consists of a leaf spring, is secured at the wheel carrier means and is pivotal by way of further guide members pivotally secured at the wheel carrier means.
Claim 7
Dependent Claim
20 words
A wheel suspension according to claim 5, characterized in that the leaf spring is secured in the wheel carrier means.
Claim 8
Dependent Claim
19 words
A wheel suspension according to claim 1, characterized in that the joint means provides a relatively soft pivot action.
Claim 9
Dependent Claim
40 words
A wheel suspension for vehicles according to claim 1, characterized in that said one guide arms means is secured at the wheel carrier means and is pivotal by way of further guide members pivotally secured at the wheel carrier means.
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) | 1978-07-07 | 1979-01-06 | 1979-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-07 | 1983-01-06 | 1983-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-07 | 1987-01-06 | 1987-07-08 | $7700.00 | Window Closed / Lapsed |