Spanners TRIZ Cases

An integrated gear carrier and crankshaft assembly supported by needle roller bearings enables compact power tool designs.

Orienting pawls minimizes the reversing disc cavity depth, improving tool head rigidity and fatigue strength.

A torque screwdriver device uses a modular clutch mechanism to control rotational force output.

Segmented anchor and clamping members enable unilateral installation of liquid-tight seals in transverse vessel holes with limited interior access.

An asymmetric driving portion with a coarse section secures the connection between the drive and handle, preventing sliding that loosens the joint over time.

Rotating the motor housing via a hinge mechanism reduces operator strain by allowing adjustable angles during use.

Nested jaws and sleeves maintain engagement until the screw contacts the surface, then automatically release to prevent slippage and reduce operator fatigue.

Dual toothed guide surfaces and resilient pawls enable precise clamping without damaging gaps between jaws.

A safety torque intensifying tool switches between high-speed and high-torque modes via an automatic mechanism.

An insertable stabilizing portion anchors into the wrench head opening, preventing slip and rotation during pipe work.

Slot-mounted pawls reduce assembly complexity and improve driving direction stability in ratchet screwdrivers.

Segmented tool heads with standardized interfaces enable quick assembly to access poorly reachable vehicle roof components.

Interchangeable communication module docks into portable power tool housing to switch wireless systems without dismantling the device.

Asymmetric stop sections protruding from the outer surface abut flat planes, resolving rolling hazards without complex mechanical structures.

A fastener magazine spool uses a strap and guide bar to direct the strip during uncoiling.

A hand-held power tool integrates the activation unit directly into the grip area structure to simplify operation.

A bicycle bottom bracket puller uses a spring-loaded locking mechanism to secure the guide pin within the inner bearing sleeve.

An automated clamping tool uses sensors and a clutch mechanism to eliminate manual tightening errors.

Curved pawl support accommodates axis divergence in ratchet wrenches, reducing interface wear under high torque loads.

A pivoting tool head uses a parallel locking channel and biasing component to secure angular positions with reduced mechanical complexity.

Segmented cover plates isolate the rotating arm from the handle, enabling screw rotation within narrow spaces while maintaining adjustable torque control.

Integrating adjacent torque transmission profiles into one tool body eliminates frequent instrument changes when handling varying screw diameters.

Integrating a sealing ring into the fan element reduces device complexity and assembly costs while maintaining reliable fluid containment.

A ratcheting torque wrench uses a laterally enclosed slide gear to simplify manufacturing and reduce accidental mode shifts.

A wrench structure switches between fixed-head and ratchet modes via a sleeve and rod assembly.

A gear head socket tool uses a bevel pinion to transmit perpendicular torque for rotating fasteners in confined spaces.

Asymmetric ratchet teeth and support rings stabilize operation stem movement while waterproof films prevent rust and bacterial growth.

A nested tube retains an elastic member on a ratchet hoop spring, preventing disengagement under high torque or impact loads.

Segmented sliding tongues and butterfly shafts adjust socket spacing to align fasteners, preventing binding during torque application.

A ratchet wrench employs a self-aligning L-shaped pawl member to ensure reliable engagement with the reversing control mechanism.

A rear-mounted liquid crystal display and control buttons enable operators to access settings while maintaining the tool in a working orientation.

Integrated ratchet mechanism in the elongated extension body enables one-handed low-torque operation, eliminating manual resistance to prevent counter-rotation.

A screw depth adjuster uses a flared sleeve and control member to set driving depth via polygonal engagement features.

Sliding nested socket components enable torque transfer across hexagonal, square, and eyebolt drives without swapping tools.

A power screwdriver uses a hinged feed track and segmented feed lever to advance a screwstrip with precise mechanical alignment.

A rotary impact tool uses a pivotal head and magnetic unit to absorb vibration while enabling rotation.

Integrated protruding portions spin the substrate relative to the turntable, resolving gas flow imbalances that cause uneven film deposition.

Elongated tool depresses quick release fastener button to enable manipulation in tight aircraft assembly areas.

Rotatable color ring aligns with pointer to indicate torque limits, eliminating grease-covered inscription errors.

A hand tool with a tooth and slot locking mechanism enables angular adjustment for confined spaces.

Non-linear sidewalls on the hex driver distribute stress over corner flats, reducing fastener deformation and premature stripping.

Segmented wrench components merge driver storage into the handle structure, eliminating separate toolboxes while reducing manufacturing costs.

Coaxial catch portion intercepts falling fasteners, eliminating manual retrieval and reducing operator fatigue.

An insulated multi-angle ratchet screwdriver uses a gear-like mechanism to lock the drive head securely.

A tool attachment housing features an angular position adjustment unit actuated by combined longitudinal and rotary movement.

Attachment replaces manual wrenches to remove stuck valve seats without damaging fittings, while LED illumination solves dim workspace visibility.

An intermediate shaft with larger sprockets drives both vise screws via transmission belts, reducing turning force for one-handed operation.

A wrench ratchet mechanism uses a jacketed elastic member on the link shaft to secure braking tooth engagement.