Patent ID: 8746384
Filing Date: 2014-06-10
Classification: B60K,B60Y,B62K,B62M

Abstract:
1. An electric vehicle wherein an output of a motor is transmitted to an axle through a reduction mechanism in order to rotate a wheel, comprising: a hollow cylindrical shaft forming the axle, said hollow cylindrical shaft passing substantially coaxially through the wheel in a manner extending from both sides of the wheel; a motor shaft inserted into a hollow portion of the cylindrical shaft substantially coaxially with the cylindrical shaft in a manner extending from both ends of the cylindrical shaft; said motor being connected to a base end of the motor shaft extending from one end of the cylindrical shaft; said reduction mechanism being connected to a leading end of the motor shaft extending from the other end of the cylindrical shaft; and a coupling portion for coupling between the one end of the cylindrical shaft and the wheel, and a sealing portion for sealing between the wheel and the motor in a manner surrounding the coupling portion, said coupling portion and said sealing portion being provided between the wheel and the motor, wherein the coupling portion is composed of a threaded portion formed at the one end of the cylindrical shaft; and a nut threaded onto the threaded portion for coupling between the wheel and the cylindrical shaft.