Driving system for stair-climbing vehicle
First Claim
1. A driving system for a stair-climbing vehicle that is installed on a wheel frame of the vehicle to allow the vehicle to go over obstacles and ascend stairs, the driving system comprising:
- a power transmission unit connected to a main shaft of a power generation unit installed on the wheel frame, and includes a sun gear fixed on the main shaft of the power generation unit, a plurality of planet gears engaged with an outer circumference of the sun gear, and a ring gear engaged with the planet gears;
a plurality of driven units engaged with the power transmission unit and supporting wheels rotating by rotational force of the power transmission unit;
a carrier to which the power transmission unit and each of the driven units are operationally fixed and which goes over the obstacles by rotating when the driven units stop due to the obstacles; and
a wheel shift unit which, when the vehicle having the wheels runs on an even road, shifts one of at least two of the wheels contacting the even road away from the even road.
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Abstract
A driving system that can allow a vehicle to go over or ascend obstacles or stairs through a step driving manner is provided. The driving system includes a power transmission unit connected to a main shaft connected to a power generation unit installed on the wheel frame, a plurality of driven units engaged with the power transmission unit and supporting the rotation of wheels by rotational force from the power transmission unit, and a carrier to which the power transmission unit and each of the driven units are operationally fixed and which goes over the obstacles by rotating when the driven units are stopped by the obstacles.
26 Citations
9 Claims
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1. A driving system for a stair-climbing vehicle that is installed on a wheel frame of the vehicle to allow the vehicle to go over obstacles and ascend stairs, the driving system comprising:
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a power transmission unit connected to a main shaft of a power generation unit installed on the wheel frame, and includes a sun gear fixed on the main shaft of the power generation unit, a plurality of planet gears engaged with an outer circumference of the sun gear, and a ring gear engaged with the planet gears; a plurality of driven units engaged with the power transmission unit and supporting wheels rotating by rotational force of the power transmission unit; a carrier to which the power transmission unit and each of the driven units are operationally fixed and which goes over the obstacles by rotating when the driven units stop due to the obstacles; and a wheel shift unit which, when the vehicle having the wheels runs on an even road, shifts one of at least two of the wheels contacting the even road away from the even road. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification