Patent EP0070025A2 successfully refreshed from Google Patents.
EP0070025A2
Expired / Lapsed
EP
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Trailing arm suspension for an automotive vehicle
Assignee: Nissan Motor Co Ltd
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Filing: 1982-07-12
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Granted: —
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Expires: 2002-07-12
Abstract
Abstract A trailing arm suspension which comprises a suspension arm (1) suspended to a suspension member (4) through resiliently deformable members (2). The resilient members (2) are arranged so that at least one of the members has its longitudinal axis tilted with respect to a pivot axis (6) of the suspension arm (1) for vertical displacement thereabout. The tilting angle of the member is selected to make sure that a high rigidity axis (7) of the resilient member which extends normally to the longitudinal axis thereto crosses the high rigidity axis (7') of the other resilient member at a point (Q) behind the pivot axis (6). The crossing point (Q) of the high rigidity axis (7, 7') is located behind the pivot axis (6) of the suspension arm (1) and behind and outside of the traction point (T) of a road wheel (5) so that toe-in change may be caused in the wheel alignment in response to a lateral force applied thereto.
Inventors
- 👤 Yasuji Shibata
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 08:32
CPC Classifications
B; B60; B60G; B60G3/00; B60G3/18; B60G3/20; B60G3/26; B60G3/02; B60G3/12; B60G3/14; B60G3/145; B60G7/00; B60G7/02; B60G2200/00; B60G2200/10; B60G2200/13; B60G2200/132; B60G2200/1322; B60G2200/40; B60G2200/445; B60G2200/46; B60G2200/462; B60G2204/00; B60G2204/10; B60G2204/14; B60G2204/143; B60G2204/40; B60G2204/422
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
141 words
A trailing arm suspension for suspending a road wheel from a vehicle body, comprising a suspension member in a vehicle body, a suspension arm having rotatably mounted thereon a road wheel and connected to said suspension member to be vertically pivotable about a pivot axis, and at least two resilient members interpositioned between said suspension member and said suspension arm, said resilient members being deformable in response to a force applied thereto, characterized in that said resilient members (82,86; 203,203';403,403';310a,310b;711a,711b) have high rigidity axes (7,7';202,202';312,312';407,407';714,714') to resist against the force applied to the road wheel, which high rigidity axes of said resilient members cross each other at a position (Q;P;R) behind said pivot axis (6;206;306;406) and a traction point (T) of said road wheel (5;205;305;405) to define a center of change of wheel alignment in a direction increasing a cornering force.
Claim 2
Dependent Claim
141 words
A trailing arm suspension for suspending a road wheel from a vehicle body, comprising a suspension member in a vehicle body, a suspension arm having rotatably mounted thereon a road wheel and connected to said suspension member to be vertically pivotable about a pivot axis, and at least two resilient members interpositioned between said suspension member and said suspension arm, said resilient members being deformable in response to a force applied thereto, characterized in that said resilient members (82,86; 203,203';403,403';310a,310b;711a,711b) have high rigidity axes (7,7';202,202';312,312';407,407';714,714') to resist against the force applied to the road wheel, which high rigidity axes of said resilient members cross each other at a position (Q;P;R) behind said pivot axis (6;206;306;406) and a traction point (T) of said road wheel (5;205;305;405) to define a center of change of wheel alignment in a direction increasing a cornering force.
Claim 3
Dependent Claim
85 words
Suspension as set forth in claim 1, characterized in that at least one of said resilient members (82,86;...) includes means for offsetting the high rigidity axis with respect to an axis normal to said pivot axis (6;...) so that the high rigidity axes (7,7';...) are concentrated at a point (Q;...) behind said pivot axis (6;...) for causing toe-in change in the wheel alignment in response to a lateral force applied to the road wheel (5;...) in an inward direction with respect to the vehicle body.
Claim 4
Dependent Claim
102 words
Suspension as set forth in claim 1 or 2, characterized in that said high rigidity axes (7,7';202,202';312,312';407,407';714,714') and said axes normal to said pivot axis (6;...) extend in a substantially horizontal plane and that said resilient members (82,86;...) have second high rigidity axes (113,113';209,209';313,313';514,514') which are inclined with respect to a vertical axis by a predetermined angle so as to cross each other at a point (R';Q';S') below said pivot axis (6;...), whereby wheel alignment causes toe-in change and negative camber in response to a lateral force applied to the road wheel in an inward direction with respect to the vehicle body.
Claim 5
Dependent Claim
34 words
Suspension as set forth in anyone of claims 1 to 3, characterized in that said resilient member is a rubber bushing (82) having a longitudinal axis offset with respect to said pivot axis (6).
Claim 6
Dependent Claim
31 words
'Suspensian as set forth in claim 4, characterized in that said high rigidity axis (7) of said rubber bushing (82) extends in radial direction and normally to said longitudinal axis thereof.
Claim 7
Dependent Claim
24 words
Suspension as set forth in claim 5, characterized by an assist link (414;707) positioned over said suspension member (404) and said suspension arm (401;701).
Claim 8
Dependent Claim
48 words
Suspension as set forth in any of the claims 1 to 3, characterized in that said resilient member is a bracket (203;403) secured to said suspension member (204;404) and pivotably engaged with said suspension arm (201;401), said bracket (203;403) being resiliently deformable in response to said lateral force.
Claim 9
Dependent Claim
39 words
Suspension as set forth in any of the claims 1 to 3, characterized in said resilient member is a resilient connecting arm (310a;711a) extending from said suspension arm (301;701) so that it deforms in response to said lateral force.
References Cited (Backward Citations)
No citation records indexed.
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