Aircraft Engine Shackle with Pivot Stops

The patent applies the dynamics principle by allowing the shackle to pivot relative to the clevis block through a pivot point, transforming the rigid connection into a dynamic one. This enables the shackle to accommodate unpredictable rotations and expansion differences between the motive-power unit and primary structure, preventing damage while maintaining connection strength through controlled movement rather than rigid restraint.

The patent employs the intermediary principle by introducing a pivot point as a mediator between the shackle and clevis block. This pivot point enables controlled relative movement, allowing the shackle to pivot freely to avoid damage from expansion differences while maintaining connection stability through the defined pivot mechanism. The pivot point acts as an intermediary that translates rotational freedom into stable, controlled movement.

The patent applies the preliminary action principle by incorporating stops that are pre-positioned on the shackle to prevent contact with the clevis block before damage can occur. These stops are integrated into the shackle structure during manufacturing, providing proactive protection against harmful contact while minimizing additional complexity through straightforward geometric features rather than complex mechanisms.