Bayonet Lens Mount Layout for Stable Interchangeable Lens Locking

The patent applies asymmetry by intentionally creating an uneven dispositional relationship between the bayonet claw portions and the lock pin groove portion. Specifically, the first bayonet claw portion is positioned at a first angle from the lock pin groove portion, while the second bayonet claw portion is positioned at a second angle that is different from the first angle, creating an asymmetric configuration that optimizes attachment stability under various external forces and orientation changes.

The patent applies self-service by designing the lock pin mechanism to automatically retract when the bayonet coupling is unlocked. The lock pin is biased by a spring and is pushed into the locked position during mounting; when the bayonet claws disengage, the spring automatically pushes the lock pin back, eliminating the need for separate manual retraction operations and enabling easy one-handed removal.

The patent applies local quality by optimizing the specific angular positions of the bayonet claw portions relative to the lock pin groove portion. Rather than using a symmetric equidistant arrangement, the patent positions the first bayonet claw portion at a first angle and the second bayonet claw portion at a second angle different from the first, creating locally optimized quality in the dispositional relationship that enhances stability under external forces while maintaining simple three-claw configuration.