Yoke Handle Mechanism for Cable Failure Detection

The patent introduces a yoke mechanism as an intermediary between the activation handle and the cables. This yoke serves as a mediator that translates cable tension status into visible handle position feedback, allowing operators to detect cable failures without exposing the cables themselves.

The system implements mechanical feedback through the yoke mechanism where the handle position directly reflects the operational status of the cables. When cables fail to tension properly, the yoke cannot achieve its locked position, providing immediate visual and tactile feedback to the operator about the failure condition.

The yoke mechanism automatically detects and indicates cable failure conditions without requiring separate detection systems. The mechanical linkage itself serves the dual function of actuating the mechanism and providing failure indication, making the system self-diagnosing.

Instead of using complex sensors or indicators to detect cable failure, the patent inverts the approach by designing the system so that proper cable tension is required to enable handle movement. The failure condition manifests as an inability to move the handle, providing positive indication of proper operation rather than requiring separate failure detection.

The yoke mechanism performs multiple functions: it acts as the primary actuation linkage, provides mechanical advantage for cable tensioning, and simultaneously serves as the failure detection indicator. The stop members on the yoke serve dual purposes of limiting travel and indicating cable status.

The patent combines the actuation function and the indication function into a single integrated yoke mechanism. Rather than adding separate detection devices, the yoke itself becomes the indicator through its position and the engagement of its stop members with the housing, merging multiple functions into one component.