Movable Sheave Cable Transportation Curve Negotiation

The patent applies the dynamics principle by making the sheaves movable rather than fixed. The sheaves are mounted on movable supports that allow them to shift position dynamically. When a vehicle approaches, the sheave moves laterally out of the vehicle's path, allowing passage without requiring special grip designs. After the vehicle passes, the sheave returns to its original position to perform its cable deflection function. This dynamic adjustment resolves the contradiction between maintaining cable deflection capability and simplifying grip design.

The patent applies the universality principle by designing sheaves that perform multiple functions. The same movable sheaves that deflect the cable vertically at towers also enable horizontal curve negotiation. By laterally displacing the sheaves, the cable path can be curved horizontally without requiring separate intermediate deflection stations. This multi-functionality eliminates the need for additional specialized structures at each curve, reducing overall installation complexity while maintaining curve negotiation capability.

The patent applies the dimensionality change principle by introducing lateral movement of the sheaves as a new degree of freedom. Instead of relying solely on the small incline of fixed sheaves to achieve curve negotiation, the sheaves are moved laterally perpendicular to the cable direction. This lateral displacement creates larger effective direction change angles without increasing tower length. The combination of the sheave's incline and its lateral position creates a more efficient curving mechanism that achieves greater directional change in a compact tower structure.