Motorcycle suspension components
OwnerVincenzo F. Costainventor
Life of this patent
Estimating the term…
Abstract
A motorcycle fork blade (21A or 21B) wherein a spring (50) is longitudinally captured between a leg and a fixture on an elongate member (33) so that the fixture and spring (50) are maintained within a lower tube during a normal range of travel of the blade so as to minimize binding or damage to the spring. Another aspect is a height adjuster featuring a threaded stud accommodated within a bore of a stanchion tube endplug (36) and carrying a fixture for engaging the spring (50). The invention also includes a shock absorber reservoir assembly (220), and a gas-filed bladder (240) on the extension side of a shock absorber (200) to provide volume compensation.
Claims4
A fork blade comprising:
- a leg for engaging a front wheel axle;
- a lower tube extending upward from the leg along a central blade axis;
- an upper tube telescopically surrounding and coaxial with the lower tube and coupled to a steering tube;
- an upper endplug, extending with an upper end of the upper tube;
- an elongate pushrod member depending from the endplug;
- a first, main spring, longitudinally captured between said leg and said pushrod;
- an annular piston secured proximate an upper end of the lower tube and having at least one valve element for regulating fluid flow between:
- (a) an annular space separating the lower tube from the upper tube;
- and (b) a space within the upper tube above the lower tube and extending within the lower tube;
- and
- a second, top out spring, surrounds the upper portion of the lower tube and is compressible between the annular piston and a stop member secured within the lower portion of the upper tube.
Dependencies are inferred from the claim text.