Metal Working Apparatus TRIZ Cases

Discrete cylindrical pegs restrict fore-and-aft blade motion, reducing deflection and skin irritation.

A rotary electric shaver uses a universal main body to drive interchangeable heads for skin comfort and deep shaving.

Dynamic telescoping enclosure resolves the contradiction between safety beam containment and ease of operation by allowing vertical adjustment.

A gravity-telescopic handle holder extends and retracts a blade using gravitational force for simple one-handed operation.

Rotating holding parts on a bottom receiving plate allow manual removal of the plate to resolve operability bottlenecks in dual-conveyor stage exchange.

A handheld grooming device features a pivoting trimmer head that adjusts blade orientation to match curved body surfaces.

Segmenting the blade from the reusable frame reduces waste while inversion guides installation away from user hands.

Embedding razor blades in transparent adhesive protects cutting edges while maintaining product visibility and simplifying structure.

Scissors with separate palm and finger rests distribute cutting force across the hand, eliminating finger pain and wrist strain during hard material cutting.