Patent ID: 9186932
Filing Date: 2015-11-17
Classification: B60B

Abstract:
1. An active speed restricting wheel assembly comprising: a casing having a first side partially open and forming a circular accommodating hole eccentric from a rotation center of the casing and a second side having a rotation hole at a center of the casing; a rotation rotor inserted inside the accommodating hole, wherein the rotation rotor rotates in an interlocked manner with the casing, wherein a rotation center of the rotation rotor is eccentric from the rotation center of the casing, and having a rotation space formed inside and internal gear teeth dented radially from the rotation space; a sun gear accommodated inside the rotation space, the sun gear having protruding external gear teeth in contact with the internal gear teeth and an axis member mounted onto a rotation center of the sun gear and accommodated inside the rotation hole of the casing; and a resistance fluid accommodated in a space between the external gear teeth and internal gear teeth, the resistance fluid being compressed according to the space between the rotation rotor and sun gear being deformed according to rotation of the rotation rotor.