Method and apparatus for stabilizing front fork suspension of a bike
AssigneeCountershox LLC
InventorsNathan Looney, Lance Holly
Life of this patent
Estimating the term…
Abstract
A suspension stabilizer and method are described which may be attached to a bike having front fork suspension to improve handling and reduce rider fatigue. The suspension stabilizer may include a counterweight, a spring assembly and a guide assembly. The spring assembly may be arranged to provide a spring force between the counterweight and the guide assembly to resist linear motion of the counterweight along a guide assembly axis. The counterweight and spring assembly may have a natural motion frequency of 3 to 15 Hertz and may be based on one or more characteristics of the front fork suspension.
Claims20
A suspension stabilizer comprising:
- a counterweight, wherein the counterweight is between 0.25 and 5 pounds, the counterweight comprising a first surface portion, a second surface portion, and an outer surface, wherein the outer surface connects between the first surface portion and the second surface portion;
- a guide assembly comprising a first end, a second end, and a body, wherein the body extends between and couples the first end and the second end;
- and
- a spring assembly comprising:
- a first stabilizing spring, wherein the first stabilizing spring is axially disposed between the first end and the counterweight, wherein the first stabilizing spring is configured to abut between the first end and the first surface portion;
- and
- a second stabilizing spring, wherein the second stabilizing spring is axially disposed between the counterweight and the second end, wherein the second stabilizing spring is configured to abut between the second end and the second surface portion, wherein the counterweight, the first stabilizing spring, and the second stabilizing spring are radially disposed within the guide assembly, wherein the counterweight is configured to linearly translate relative to the guide assembly, wherein the spring assembly and the counterweight have a natural motion frequency of between 3 and 15 Hz.
A front suspension comprising:
- a suspension stabilizer comprising:
- a counterweight, wherein the counterweight is between 0.25 and 5 pounds, the counterweight comprising a first surface portion, a second surface portion, and an outer surface, wherein the outer surface connects between the first surface portion and the second surface portion;
- a guide assembly comprising a first end, a second end, and a body, wherein the body extends between and couples the first end and the second end;
- and
- a spring assembly comprising:
- a first stabilizing spring, wherein the first stabilizing spring is axially disposed between the first end and the counterweight, wherein the first stabilizing spring is configured to abut between the first end and the first surface portion;
- and
- a second stabilizing spring, wherein the second stabilizing spring is axially disposed between the counterweight and the second end, wherein the second stabilizing spring is configured to abut between the second end and the second surface portion, wherein the counterweight, the first stabilizing spring, and the second stabilizing spring are radially disposed within the guide assembly, wherein the counterweight is configured to linearly translate relative to the guide assembly, wherein the spring assembly and the counterweight have a natural motion frequency of between 3 and 15 Hz;
- and
- a fork, wherein the suspension stabilizer is coupled to the fork, the fork comprising:
- two lower fork tubes, wherein the two lower fork tubes are oriented in parallel and radially offset;
- an axle;
- an arch, wherein the axle and the arch each couple between the two lower fork tubes;
- two upper fork tubes, wherein the two upper fork tubes are radially aligned with and coupled to respective of the two lower fork tubes;
- a lower crown, wherein the lower crown couples between the two upper fork tubes, wherein the two lower fork tubes are configured to translate axially relative to the two upper fork tubes up to the lower crown;
- and
- a steer tube, wherein the steer tube is coupled to the lower crown.
A bike comprising:
- a front suspension comprising:
- a suspension stabilizer comprising:
- a counterweight, wherein the counterweight is between 0.25 and 5 pounds, the counterweight comprising a first surface portion, a second surface portion, and an outer surface, wherein the outer surface connects between the first surface portion and the second surface portion;
- a guide assembly comprising a first end, a second end, and a body, wherein the body extends between and couples the first end and the second end;
- and
- a spring assembly comprising:
- a first stabilizing spring, wherein the first stabilizing spring is axially disposed between the first end and the counterweight, wherein the first stabilizing spring is configured to abut between the first end and the first surface portion;
- and
- a second stabilizing spring, wherein the second stabilizing spring is axially disposed between the counterweight and the second end, wherein the second stabilizing spring is configured to abut between the second end and the second surface portion, wherein the counterweight, the first stabilizing spring, and the second stabilizing spring are radially disposed within the guide assembly, wherein the counterweight is configured to linearly translate relative to the guide assembly, wherein the spring assembly and the counterweight have a natural motion frequency of between 3 and 15 Hz;
- and
- a fork, wherein the suspension stabilizer is coupled to the fork, the fork comprising:
- two lower fork tubes, wherein the two lower fork tubes are oriented in parallel and radially offset;
- an axle;
- an arch, wherein the axle and the arch each couple between the two lower fork tubes;
- two upper fork tubes, wherein the two upper fork tubes are radially aligned with and coupled to respective of the two lower fork tubes;
- a lower crown, wherein the lower crown couples between the two upper fork tubes, wherein the two lower fork tubes are configured to translate axially relative to the two upper fork tubes up to the lower crown;
- and
- a steer tube, wherein the steer tube is coupled to the lower crown;
- a front wheel, wherein the fork is coupled to the front wheel via the axle, wherein the arch conforms to the front wheel;
- and
- handlebars, wherein the fork is coupled to the handlebars via the steer tube.
Dependencies are inferred from the claim text.