Land vehicles – Wheeled – Occupant propelled type
Patent
1974-09-16
1976-10-05
Blunk, Evon C.
Land vehicles
Wheeled
Occupant propelled type
267177, 280284, B62K 1700
Patent
active
039841197
ABSTRACT:
A suspension for two-wheeled vehicles is provided which may arbitrarily adjust its spring characteristics almost without changing the initial load applied to the suspension spring so that the optimum spring characteristics may be selected depending upon the desired riding quality or road conditions. A pair of series-disposed helical or coil springs are fitted over a telescopic shock absorber and are spaced apart from each other by a spacer whose position with respect to the shock absorber is adjustable and which is retained in position by a stopper securely fitted over the shock absorber. The pair of helical springs have different forces, that is the load causing the maximum deflection of one helical spring is different from that causing the maximum deflection of the other helical spring. By the coaction between the spacer and the stopper and by a mechanism for causing the axial displacement of one of the spring seats fitted over the shock absorber, the preload applied to one of the pair of helical springs may be so adjusted as to be equal to or in excess of the load applied to the other helical spring.
REFERENCES:
patent: 783236 (1905-02-01), Ashburn
patent: 1188168 (1916-06-01), Genovese
patent: 3559976 (1971-02-01), Jerz
patent: 3618927 (1971-11-01), Nicholls
Blunk Evon C.
Jecies Saul
Valenza Joseph E.
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