Spanners TRIZ Cases

Separating operation claws from the switch member prevents unintended switching caused by claw oscillation while maintaining torque in a compact handle head.

A threaded magnet insert screws into the driver head to securely hold fasteners.

A quick-turning wrench driving end uses segmented grip surfaces to enable rapid rotation without a pawl mechanism.

A hybrid torque wrench merges torque application and angle measurement into a single unit using electronic controllers for automatic mode transition.

A screwdriver design isolates conductive sleeves with an intermediary insulating layer, eliminating electric shock risk while maintaining tool versatility.

A hex driver bit features contoured tapered engagement channels on alternating flat surfaces to secure rotational torque transfer.

A hex tool with a spherical joint between the head and handle.

Sloping retention units hold offset keys in angular planes, preventing detachment of smaller tools while reducing case volume.

A bit accessory sleeve with a magnetic limiting member holds bits securely for one-handed operation.

A central toolhead wrench inverts traditional handle geometry to enable bidirectional torque application from both arms.

Nested ball bearings maintain concentric alignment of tool shafts, eliminating perceived play and toggle during rigid attachment.

Camshaft-driven hammer converts continuous motor rotation into rotational impacts, delivering 1,700 ft-lbs torque while limiting current draw to 100 Amperes.

Segmented hammer and anvil components deliver striking rotational force while a locking mechanism enables manual torque wrench operation.

A segmented ratchet mechanism distributes load across multiple pawls to resolve the contradiction between high torque strength and device complexity.

Pneumatic fluid replaces mechanical springs to increase energy density, reduce tool volume, and simplify hydraulic connections.

Clamping grooves hold the nut securely, eliminating hand contact with hammer strikes and preventing operator injury.

A fastener guide with a funnel and gap flange aligns drive features with small fastener heads, reducing alignment time in tight spaces.

External depth adjustment mechanism on screwdriver tool slide body extends drive bit reach into tight spaces without increasing housing cross-section.

A wrench handle pivots on dual contact sections to enable quick angular adjustment.

A ratchet wrench uses a sliding tensioner head to adjust pawl positions for one-handed operation.

Laser-etched barrel markings and a sliding sleeve edge provide visual fastener depth indication without adding device complexity.

Dynamic duty ratio switching prevents excessive temperature and screw head damage while maintaining high-speed productivity.

A brake bleeding tool integrates a socket wrench with a quick-connect fitting to retain bleed screws and route fluid through a hollow shaft.

A clench wrench employs a resilient clenching member to prevent accidental disengagement while allowing effortless object removal.

A control unit calculates initial high-speed drive time based on measured tightening duration and rotational speed ratios.

A medical screwdriver tool uses a cam profile to drive split tip portions for secure fastener engagement.

A T-shaped driving tool uses a control rod and resilient member to retract an engaging member, enabling the bar to separate from the shaft.

A universal pool pump-trap wrench system uses offset lower levers and a top unit to grip various equipment covers.

A drill-mounted nut driver bit rotates nuts onto threaded shafts using a gripping outer layer.

A biasing element urges an adjustable wrench worm gear into engagement using mirror-symmetric support surfaces with varying incline angles.

Segmented adjustment slots with varying diameters prevent unintentional stopper removal while enabling visual inspection during continuous screw driving.

Grooved abutting faces with elastic members prevent disengagement while enabling tactile identification without increasing tool head size.

A driving tool shank pivots on a non-circular spatial engaging member secured by magnetic attraction.

A wrench with a notch engages an angle valve handle to apply torque via a lever arm, reducing hand effort for stuck valves.

Segmented handle materials provide tactile cues to identify screwdriver types without visual inspection.

Eccentric positioning shaft prevents auxiliary retainer random rotation in wrench tool, ensuring secure bolt retention during reverse operations.

Dynamic voltage control manages motor current between impacts, suppressing Joule heating in switching elements while maintaining fastening performance.

A driver tool uses a concentric sleeve to expose nested fastener driving members.

Segmenting the suppressor into separable portions allows users to adjust length and weight for specific sound reduction needs.

Reciprocal pressing moves a switch set to clamp the press set, resolving manual slide valve inconvenience.

Blocking sheets engage a pinion to switch rotational direction, resolving the trade-off between versatility and component complexity.

A sprocket-equipped chain wrench wraps around workpieces to deliver a secure, slip-resistant grip without damaging surfaces.

Segmenting the operating end into fixed and detachable parts resolves the trade-off between structural stability and adaptability for multiple tool sizes.

A torque wrench integrates a recognition device and control unit to automatically associate tightening torque values with detected elements.

A ratchet clamp drives a thread rod to reciprocate for secure clamping.

Spring force pushes a toothed catch against guide teeth to lock the moving jaw, enabling one-handed operation on various bolt sizes.

Segmented external diameters in the socket distribute stress evenly, preventing drive bit disengagement during torque application.

Nose guide members engage driver insertion to rotate and align fasteners, resolving manual alignment precision issues in craniofacial surgery.

A compact tightening device uses a planetary gear mechanism to amplify torque while housing a strain gauge sensor for precise measurement.