Planetary-gear train for hybrid-drive vehicles

Claim 2

In a planetary-gear train for a hybrid-drive vehicle having a mixed drive of muscle power and an auxiliary motor, the improvement comprising a sun wheel (3) driven by said auxiliary motor, a crown gear (6) driven by said muscle power, and a planetary-gear carrier (5) on the driven wheel (10) of the hybrid-drive vehicle, said planetary-gear carrier (5) providing a power take-off.

Claim 3

In a planetary-gear train in accordance with claim 1, wherein the planetary-gear train is disposed on a central hub (1) having a centered flange (2), the sun wheel (3) is rotatably seated on the central hub (1), the planetary-gear carrier (5) is fixedly connected to the centered flange (2) of the central hub (1) and bolted to a mounting ring for a vehicle wheel (10), the crown gear formed by a bell-shaped element (6) is rotatably seated on the central hub (1), said bell-shaped element having inner teeth (6'), which mesh with a plurality of planet wheels (4), and a chain change sprocket gear (9) is disposed on the bell-shaped element (6) which is in operative connection to the bell-shaped element (6).

Claim 4

In a planetary-gear train in accordance with claim 2, wherein a bushing (15) is seated on the central hub (1) which supports the sun wheel (3) abutting against the centered flange (2), said bushing (15) extending to a widened area located on the central hub (1) and having a flange (18) on which a drive wheel (16) of the auxiliary motor is fastened.

Claim 5

In a planetary-gear train in accordance with claim 3, wherein a coupling element (26) is disposed on the central hub (1), connecting the bushing (15) and the central hub (1), providing a fixed connection between the sun wheel (3) and the planetary-gear carrier (5).

Claim 6

In a planetary-gear train in accordance with claim 1, wherein the auxiliary motor is an electric motor and the crown gear (6) can be braked (30) for recovering energy.

Claim 7

In a planetary-gear train in accordance with claim 1, wherein said hybrid-drive vehicle is a four-wheeled hybrid drive vehicle having two means for muscle powered propulsion, two planetary-gear trains are mounted on a shaft and the auxiliary motor drives two sun wheels, each of the muscle-powered means acting on one crown gear and a power take-off acting on each of the driven vehicle wheels.

Claim 8

In a planetary-gear train in accordance with claim 1, wherein a flywheel is attached to the motor shaft.

Claim 9

In a planetary-gear train in accordance with claim 1, wherein the sun wheel (3) and a plurality of planet wheels (4) have the same diameter and number of teeth.