US 11,267,531 B2Granted

Gear shifting system

AssigneeCeramicSpeed Sport A/S

InventorsJason Smith, Noah Granigan, Colin Diamond, William Golding, Garrett Gerchar, Morten Opprud Jakobsen, Alexander Jacobson Rosenberry

Life of this patent

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Abstract

A gear shifting system includes a drive shaft, a face gear, and at least one power transmission component(s). The gear system also includes a pinion gear assembly, which is coupled to the first end of the drive shaft. The pinion gear assembly is configured to mesh with one of the concentric gear-rings on the face gear, so that the rotational movement of the gear-ring is transmitted to the shaft. The gear shifting system is easy to operate, mechanically simple, can smoothly shift between gears under any gear shifting conditions, and exhibits decreased component wear.

Claims14

Dependent claims

A gear shifting system comprising:

a drive shaft comprising an axis of rotation, a first end, and a second end;
at least one power transmission component coupled to the second end of the drive shaft;
and
a face gear comprising a cog-disk and at least one concentric gear-ring,
wherein the drive shaft further comprises a pinion gear assembly coupled to the first end of the drive shaft,
wherein the pinion gear assembly is configured to mesh with the at least one concentric gear-ring so that rotational movement of the gear-ring is transmitted to the drive shaft,
wherein the pinion gear assembly comprises:
at least one engaging element engaging the at least one concentric gear-ring of the face gear;
and
a spinner, wherein the spinner comprises at least two sections and a rotator, and
wherein the at least two sections and the rotator each move independently of each other, or wherein one section of the at least two sections and the rotator move in a master/slave configuration.

8 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/843,634Filed 8 Apr 2020 · us provisional application
Priority: 22 Apr 2019
Published: US 2020/0331559 A122 Oct 2020
Granted: 8 Mar 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

B62M 11/08
With spur gear wheels: with a radially-shiftable intermediate gear wheel
B62M 1/36
Rider propulsion of wheeled vehicles: with rotary cranks, e.g. with pedal cranks
B62M 11/10
Of changeable ratio: with bevel gear wheels
B62M 17/00
Transmissions characterised by use of rotary shaft