Thrusting Weapons TRIZ Cases

Adjustable blade spacing lets one peeling tool handle different peel thicknesses, while a retractable cover improves blade safety.

A hair comb with integrated piercing elements solves the access and concealment tradeoff in self-defense while reducing accidental harm.

A linked blade conveyance system deploys a pocket knife rapidly while the handle stays fully grasped, improving control in emergencies.

See how palm straps and a support plate with projecting tips enable immediate defense with minimal training while preserving hand mobility.

A palm support plate with protruding tips preserves finger mobility while inducing pain and collecting evidence during an attack.

A separate lockbar biases into the folding plane to secure the blade, resolving accidental closure risks without adding manual complexity.

A ballistic shield uses omnidirectional wheels for dynamic movement while deflecting projectiles.

Asymmetric tapered sidewalls optimize force distribution to resolve the contradiction between locking reliability and structural complexity.

A retractable utility knife uses a rotatable release member to disengage the blade from its notch for quick one-handed operation.

A carrier assembly positions a spherical locking mechanism against the blade tang to secure open and closed knife positions.

Axial torsion springs transfer rotational kinetic energy to drive a folding knife blade open, eliminating latch complexity and unintended activation risks.

A utility knife cartridge holds a blade magazine and uses a carrier to extend the cutting edge through the body opening.

A retractable cutting tool uses a spring-loaded blade assembly to extend shearing edges from the handle for one-handed operation.

A diver knife employs a guiding groove and directing edge to position a line, reducing accidental cut risks while maintaining cutting efficiency.

Replacing metal liners with a high-fiber composite handle reduces tool weight and thickness without sacrificing strength for better portability.

A folding knife lockup switch uses a kidney-shaped mounting hole and spring to engage a stopping slot for safe blade retention.

A utility knife carriage extends to increase handle length and elevate the user's finger above the work surface.

An actuator-driven dispenser separates spare blades while a resilient wiper cleans debris from the blade surface during retraction to prevent handle jamming.

A telescopic utility knife handle slides to extend the blade holder for comfortable cutting leverage.

A folding knife handle pivots a side portion to drive blade movement via an internal pin and channel mechanism.

A telescopic utility knife extends its blade holder forwardly for comfortable cutting.

Rotating the bolster disengages a locking button from tang notches, enabling safe one-handed operation without finger exposure.

A hexagonal through-hole screw paired with a collar-equipped tool transmits torque to secure fencing epee points.

Toggle locking mechanism prevents spontaneous blade release in folding knives.

Segmenting the spring into a removable unit prevents corrosion and breakage by allowing easy drainage and torque adjustment within minimal envelope space.

Integrating tool elements as locking components resolves the contradiction between locking reliability and device complexity in separable pocket knives.

A folding knife uses resilient elements to adjust engaging portions along tracks, enabling smooth blade extension and retraction.

Segmented sleeves house distinct defensive tools while a hand strap enables rapid deployment without removing the device from storage.

Segmented latch and detente mechanisms secure the blade position, resolving reliability versus complexity trade-offs in bi-fold knives.

A roller cam reduces friction and wear in the tang slot, enabling reliable assisted blade deployment.

Spring members and cam engaging members propel the blade to reduce manual effort and safety risks.

Rotating the blade on the slider reduces uncoupling force, enabling reliable automatic retraction even when cutting thin materials.

Pivotally mounted folding guards raise to a locked position when the blade opens, preventing hand slippage onto the cutting edge without adding bulk.

A folding knife uses a cantilever spring to exert opening force on the blade tang.

A cutter assembly merges automatic and screw locking devices to secure blade extension positions.

A safety cutter uses a slider and lock wheel to selectively release one tool at a time from the housing.

A safety cutting device uses a longitudinally movable guard to physically block blade extension until the guard moves to an extended position.

A split backspring mechanism secures a folding knife blade using elastic bias to hold the tang in open or closed positions.

Resilient blade wiper removes debris from utility knife side surfaces during retraction, preventing jamming and extending operational life.

A blade-switchable utility knife uses a switch actuator to move between two stored blades within a single housing.

Guiding grooves and a safety lock secure an extensible blade within a handle cavity, resolving connection instability during extension.

Elastomeric blade seals prevent grit ingress while maintaining free rotation, resolving cleaning versus sealing trade-offs.

A knife mount secures a blade to a firearm handguard via a locking mechanism.

A utility knife blade pivots within a track system to shift between closed and open configurations.

Arcuate slots limit blade rotation on a common pivot pin, keeping the cutting edge nested in the guard to prevent user injury.

A folding knife mode lever engages a linear spring to select between manual and spring-assisted blade opening.

Angled blade slots engage tape measure hooks to extend cutting edges below the hook for precise drywall scoring.

A tactical pen features a rotatable ring that pivots to create a secure finger hold for improved thrusting control.

Interlocking fixed and movable blade portions resolve structural weakness at the handle interface while enabling one-handed operation.