EP0032170A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
A front suspension system for a motorcycle
Assignee: Honda Motor Co Ltd
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Filing: 1980-11-10
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Granted: —
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Expires: 2000-11-10
Abstract
Abstract The front suspension system for a motorcycle wheel comprises a downwardly and forwardly inclined suspension structure (5) mounted on the steering column (1), and two swinging arms (10,11) both disposed substantially parallel to the plane of the motorcycle wheel (8) and pivoted at one end (110,111) to the suspension structure (5) and at the other end (210, 211) to a wheel-carrying element (9, 109), so that the suspension structure (5), the two swinging arms (10,11) and the wheel-carrying element (9, 109) form an articulated quadrilateral. The wheel-carrying element (9,109) has a prolongation which is parallel to the plane of the motorcycle wheel (8) and extends forward beyond the two connection points (210,211) between the two swinging arms (10,11) and the wheel-carrying element (9, 109), with the motorcycle wheel (8) mounted on the said prolongation. The articulated quadrilateral (111, 110, 210, 211) is located at the rear of the suspension structure (5). Resilient and/or shock absorber means (15,17), acting on the said articulated quadrilateral (111, 110,210, 211), are mounted in front of the suspension structure (5) and are connected either to one of the two swinging arms (10, 11) or to the wheel-carrying element (9, 109), through at least one connecting rod (14).
Inventors
- 👤 Valentino Ribi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 09:44
CPC Classifications
B; B62; B62K; B62K25/00; B62K25/04; B62K25/12; B62K25/22; B62K25/24; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20732; Y10T74/2078; Y10T74/20786
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
242 words
A front suspension system for a motorcycle wheel, comprising a downwardly and forwardly inclined suspension structure (5) mounted on the steering column (1), two swinging arms (10, 11) both disposed substantially parallel to the plane of the motorcycle wheel (8) and pivoted at one end (110, 111) to the suspension structure (5) and at the other end (210, 211) to a wheel-carrying element (9, 109), so that the suspension structure (5), the two swinging arms (10, 11) and the wheel-carrying element (9, 109) form an articulated quadrilateral, there being resilient and/or shock absorber means (15, 17) acting on the said articulated quadrilateral to oppose relative movement between the suspension structure (5) and the wheel-carrying element (9, 109) due to a load applied to the motorcycle, characterized in that the wheel-carrying element (9, 109) has a prolongation which is parallel to the plane of the motorcycle wheel (8) and extends forward beyond the two connection points (210, 211) between the two swinging arms (10, 11) and the wheel-carrying element (9, 109), with the motorcycle wheel (8) mounted on the said prolongation, the articulated quadrilateral (111, 110, 210, 211) being located at the rear of the suspension structure (5), and the resilient and/or shock absorber means (15, 17) being mounted in front of the suspension structure (5) and being connected either to one of the two swinging arms (10, 11) or to the wheel-carrying element (9, 109), through at least one connecting rod (14).
Claim 2
Dependent Claim
242 words
A front suspension system for a motorcycle wheel, comprising a downwardly and forwardly inclined suspension structure (5) mounted on the steering column (1), two swinging arms (10, 11) both disposed substantially parallel to the plane of the motorcycle wheel (8) and pivoted at one end (110, 111) to the suspension structure (5) and at the other end (210, 211) to a wheel-carrying element (9, 109), so that the suspension structure (5), the two swinging arms (10, 11) and the wheel-carrying element (9, 109) form an articulated quadrilateral, there being resilient and/or shock absorber means (15, 17) acting on the said articulated quadrilateral to oppose relative movement between the suspension structure (5) and the wheel-carrying element (9, 109) due to a load applied to the motorcycle, characterized in that the wheel-carrying element (9, 109) has a prolongation which is parallel to the plane of the motorcycle wheel (8) and extends forward beyond the two connection points (210, 211) between the two swinging arms (10, 11) and the wheel-carrying element (9, 109), with the motorcycle wheel (8) mounted on the said prolongation, the articulated quadrilateral (111, 110, 210, 211) being located at the rear of the suspension structure (5), and the resilient and/or shock absorber means (15, 17) being mounted in front of the suspension structure (5) and being connected either to one of the two swinging arms (10, 11) or to the wheel-carrying element (9, 109), through at least one connecting rod (14).
Claim 3
Dependent Claim
103 words
2 . A front suspension system according to Claim 1, characterized in that the suspension structure (5) comprises two arms arranged in a parallel and transversely spaced--apart relation and extending in a downward direction, substantially parallel to the axis (6) of the steering column (1), the wheel-carrying element consisting of a two-arms fork (9), to each arm of the said suspension structure (5) and to the corresponding arm of the said fork there being associated two swinging arms (10, 11) and one connecting rod (14), whereby two articulated quadrilaterals are formed, between which the resilient and/or shock absorber means (15, 17) are disposed.
Claim 4
Dependent Claim
31 words
A front suspension system according to Claim 1 or 2, characterized in that the resilient and/or shook absorber means (15, 17) are located at the level of the steering column (1).
Claim 5
Dependent Claim
59 words
A front suspension system according to Claim 1 or 2, characterized in that the lower end of the resilient and/or shock absorber means (15, 17) is operatively connected to a swinging lever (13) fulcrumed on the respective arm of the suspension structure (5) at one end and pivotally connected with the corresponding connecting rod (14) at the other end.
Claim 6
Dependent Claim
58 words
A front suspension system according to Claim 1 or 2, characterized in that the lower end of the resilient and/or shock absorber means (15, 17) and the corresponding connecting rod (14) are operatively connected to one end of a swinging lever (13), which is fulcrumed by its other end on the respective arm of the suspension structure (5).
Claim 7
Dependent Claim
51 words
A front suspension system according to Claim 1 or 2, characterized in that the lower end of the connecting rod (14) is pivoted to the wheel-carrying element (9, 109) near to the point of the pivotal connection (210) between the fore swinging arm (10) and the said wheel-carrying element (9, 109).
Claim 8
Dependent Claim
36 words
A front suspension system according to Claim 1 or 2, characterized in that the lower end of the connecting rod (14) is pivotally connected to the wheel-carrying element (9, 109) near to the wheel axle (7).
Claim 9
Dependent Claim
56 words
A front suspension system according to Claim 1 or 2, characterized in that the lower end of the connecting rod (14) is pivoted to the wheel-carrying element (9, 109) in an intermediate position between the wheel axle (7) and the pivotal connection (210) of the fore swinging arm (10) to the said wheel-carrying element (9, 109).
Claim 10
Dependent Claim
59 words
A front suspension system according to Claim 1 or 2, characterized in that the geometry of the articulated quadrilateral is such that the excursion path of axle (7) of wheel (8) is substantially rectilinear and substantially parallel to the steering column axis and preferably also substantially parallel to the longitudinal direction of the arms of the suspension structure (5).
Claim 11
Dependent Claim
66 words
1 0 . A front suspension system according to Claim 1 or 2, characterized in that the geometry of the articulated quadrilateral is such that the ratio between the excursion path of the wheel axle (7) and the excursion of the related resilient and/or shock absorber means (15, 17) corresponds to a curve that decreases in the direction of the resilient and/or shock absorber means compression.
References Cited (Backward Citations)
No citation records indexed.
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