Engineering Safety Devices TRIZ Cases

A crane controller uses imaging sensors to detect personnel in defined safety regions and inhibits hoist operation when hazards are present.

Segmented light guides transmit optical signals through covered actuators, resolving the contradiction between component protection and signal detectability.

A wireless transmitter worn by a user triggers automatic shutdown of dangerous power machinery upon detecting proximity.

Floor-supported upper cover eliminates bed deformation and maintains machining accuracy while containing coolant.

A safety device uses hardware and software branches to evaluate a rotary encoder for reliable guard control.

A portable electrical tool uses body capacitance to measure user distance and adjust actuator speed.

A variable length protective cover uses a convex scraping edge profile to maintain continuous contact between adjacent slats.

A lens-in-a-lens assembly secures interchangeable secondary lenses within a retainer frame to extend the welder's field of view.

A leaf spring connecting element secures protective cover segments using tension from a coupling element.

A magnetic field tracking system detects operator proximity to danger zones on industrial machinery.

Microlens and prism arrays redistribute laser light into a uniform field, resolving errors in depth mapping caused by uneven illumination.

Complementary coupling edges on sealing elements engage and disengage like a zipper to prevent contaminant entry during component movement.

A segmented automatic door uses a flexible member to connect an inner door and cover, enabling independent sliding motion.

A barrier sleeve protects the casing mounting location during cementing operations to ensure a clean and sealed attachment for subsequent liner expansion.