Patent ID: 8292248

Claim:
A platform, comprising: a base; a first platform unit rotatably mounted to the base and being rotatable about a first axis relative to the base; a second platform unit rotatably mounted to the first platform unit and being rotatable about a second axis relative to the first platform unit; and a flexible transmitting device connected between the base and the first platform unit and at least one of the first platform unit and the second platform unit for transmitting at least one of power and data, wherein the flexible transmitting device winds about at least one of the first axis and the second axis when at least one of the first platform unit is rotated about the first axis and the second platform unit is rotated about the second axis; wherein the first platform unit is rotatably attached to the base via a shaft which is fixed to or integrally formed with the first platform unit, the flexible transmitting device being connected between the base and the first platform unit and winding around the shaft when the first platform unit is rotated about the first axis; and wherein the shaft has a void, one end of the flexible transmitting device is fixed relative to the base and the other end thereof extends through the void of the shaft and an opening defined in the first platform unit to be fixed relative to the first platform unit.