# US 8,740,238 B2 · Fiber-reinforced wrapped handlebar-steered suspension fork

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- Number: US 8,740,238 B2
- Document ID: US8740238B2
- Status: Granted
- Kind: B2
- Application number: 11/847,174
- Filed: 2007-08-29
- Published: 2009-03-05
- Granted: 2014-06-03
- Earliest claimed: 2007-08-29
- Assignees: Sram, LLC
- Applicants: Craig S. Mickelson
- Inventors: Craig S. Mickelson
- Web page: https://patentgrep.com/patent/US8740238B2

## CPC

- B62K 25/08: for front wheel
- B62K: CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDECARS, FORECARS, OR THE LIKE

## Abstract

A handlebar-steered suspension fork that includes an outer tube and an inner tube reciprocally slidable within the outer tube. The outer tube includes at least one radial load region and at least one transition region. A fiber-reinforced material is wrapped about at least one of the outer tube radial load regions and not wrapped about at least one of the outer tube transitions regions.

## Claims

### Claim 1

A handlebar-steered suspension fork comprising:
an outer tube;
an inner tube reciprocally slidable within the outer tube,
the outer tube including at least one radial load region and at least one transition region; and
a fiber-reinforced material wrapped about at least one of the outer tube radial load regions, the fiber-reinforced material not wrapped about at least one of the outer tube transition regions.

### Claim 2 (depends on 1)

The handlebar-steered suspension fork of claim 1, further comprising at least one bushing disposed between the outer and inner tubes, the bushing configured to transmit radial load from the inner tube to the radial load region of the outer tube, the fiber-reinforced material wrapped only about an exterior of the at least one of the outer tube radial load regions.

### Claim 3 (depends on 2)

The handlebar-steered suspension fork of claim 2, wherein the fiber-reinforced material includes layers of one of unidirectional and weave materials for structural strength.

### Claim 4 (depends on 1)

The handlebar-steered suspension fork of claim 1, wherein the fiber-reinforced material includes layers of one of unidirectional and weave materials for structural strength.

### Claim 5

A handlebar-steered suspension fork comprising:
an outer tube;
an inner tube reciprocally slidable within the outer tube,
the outer tube including at least one radial load region and at least one transition region; and
a fiber-reinforced material wrapped about each of the outer tube radial load regions, the fiber-reinforced material not wrapped about at least one of the outer tube transition regions.

### Claim 6 (depends on 5)

The handlebar-steered suspension fork of claim 5, further comprising at least one bushing disposed between the outer and inner tubes, the bushing configured to transmit radial load from the inner tube to the radial load region of the outer tube, the fiber-reinforced material wrapped only about an exterior of each of the outer tube radial load regions.

### Claim 7 (depends on 6)

The handlebar-steered suspension fork of claim 6, wherein the fiber-reinforced material includes layers of one of unidirectional and weave materials for structural strength.

### Claim 8 (depends on 5)

The handlebar-steered suspension fork of claim 5, wherein the fiber-reinforced material includes layers of one of unidirectional and weave materials for structural strength.