# US 11,305,579 B2 · Bicycle axle

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- Number: US 11,305,579 B2
- Document ID: US11305579B2
- Status: Granted
- Kind: B2
- Application number: 16/728,576
- Filed: 2019-12-27
- Published: 2020-09-17
- Granted: 2022-04-19
- Earliest claimed: 2019-03-14
- Applicants: Chung-Che Lee
- Inventors: Chung-Che Lee
- Web page: https://patentgrep.com/patent/US11305579B2

## CPC

- B60B 35/04: straight
- B62K 25/02: for mounting axles rigidly on cycle frame or fork, e.g. adjustably
- B60B 27/023: {specially adapted for bicycles}
- B60Y 2200/13: Bicycles; Tricycles
- B60B: VEHICLE WHEELS (making wheels or wheel parts by rolling B21H1/00, by forging, hammering or pressing B21K1/28); CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B62K: CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDECARS, FORECARS, OR THE LIKE
- B60Y: INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY

## Abstract

A bicycle axle is provided, including a mandrel and a sleeve member. The mandrel defines an axial direction and includes an axial rod, a head portion radially protruding from an end of the axial rod and an engaging portion radially protruding from the axial rod and being axially spaced apart from the head portion. The sleeve member is sleeved around the head portion and includes a flange radially extending inwardly. At least part of the flange is located between the head portion and the engaging portion and is abuttable against the head portion and the engaging portion in the axial direction.

## Claims

### Claim 1

A bicycle axle, including:
a mandrel, defining an axial direction, including an axial rod, a head portion radially protruding from an end of the axial rod and an engaging portion radially protruding from the axial rod and being axially spaced apart from the head portion;
a sleeve member, being rotatably sleeved around the head portion, including a flange radially and integrally extending inwardly, at least part of the flange being located between the head portion and the engaging portion and being abuttable against the head portion and the engaging portion in the axial direction;
wherein the engaging portion includes at least one engaging projection, the at least part of the flange is interferable with the at least one engaging projection in the axial direction;
wherein each of the at least one engaging projection includes an inclined guiding surface located at a side remote from the head portion;
wherein an inner circumferential surface of the flange has a lip radially and inwardly protruding integrally therefrom, the lip is located between the head portion and the engaging portion and is interferable with the head portion and the engaging portion in the axial direction;
wherein an inner circumferential surface of the lip and an outer circumferential surface of the axial rod define a first gap therebetween, and the inner circumferential surface of the flange and the outer circumferential surface of the axial rod define a second gap located at a side of the engaging portion axially opposite to the first gap.

### Claim 2 (depends on 1)

The bicycle axle of claim 1, wherein the engaging portion protrudes radially beyond the outer circumferential surface of the axial rod by 0.2 mm to 0.5 mm.

### Claim 3 (depends on 1)

The bicycle axle of claim 1, wherein the flange defines a penetrating hole through which the mandrel penetrates, in the axial direction, a distance between the head portion and the engaging portion is larger than or equal to a thickness of the lip, and relative to an axle center of the axial rod, a minimum diametric dimension of the penetrating hole is smaller than a maximum diametric dimension of the engaging portion.

### Claim 4 (depends on 1)

The bicycle axle of claim 1, wherein at least one of two axially opposite sides of the inner circumferential surface of the flange has a guiding surface tilted outwardly.

### Claim 5 (depends on 1)

The bicycle axle of claim 1, wherein the mandrel further includes at least one groove disposed on the outer circumferential surface of the axial rod and at least one restricting member received within the at least one groove, and the at least one restricting member has the engaging portion.

### Claim 6 (depends on 1)

The bicycle axle of claim 1, wherein the inner circumferential surface of the flange has at least one engaging concave radially recessed thereon, and the engaging portion is embedded within the at least one engaging concave.

### Claim 7 (depends on 3)

The bicycle axle of claim 3, wherein the at least one engaging projection is an annular projection disposed on the axial rod; the annular projection includes an inclined guiding surface located at a side remote from the head portion; the engaging portion protrudes radially beyond the outer circumferential surface of the axial rod by 0.2 mm to 0.5 mm; a side of the inner circumferential surface of the flange adjacent to the head portion has a guiding surface tilted outwardly and annularly disposed thereon; an end of the axial rod opposite to the head portion has a threaded segment; each of two end surfaces of the axial rod has an assembling hole.