Spanners TRIZ Cases

Segmenting the scale into independent digits eliminates pointer alignment errors while a protective collar shields the display from damage.

Compressible high friction material on the wrench band prevents filter damage and hand irritation during installation.

A tool assembly sleeve uses a locating ball and elastic piece for secure engagement.

A recessed portion in the anvil redistributes rotational stress to enhance structural durability.

A torque wrench setting device uses a bead and positioning recesses to lock the control tube.

A dual-beam torque wrench uses a linear display and deflecting beam to indicate applied force.

A hydraulic torque wrench mounts a proximity sensor to detect maximum piston extension and trigger automatic flow reversal.

Elastic sliding jaws resolve abrasion and structural weakness in ratchetable wrenches by enabling continuous reverse rotation without sequential strokes.

A screw tightening tool uses a movable sun member to transmit motor power via planetary roller friction.

Arcuate driving surfaces distribute rotational force across screw head faces, preventing bite marks and wear caused by sharp stop ribs.

A tightening parameter server update manager distributes application updates to subscribed tool controllers.

Anti-vibration means position the center of gravity on the rotation axis to reduce vibration levels.

Segmented reversing lever positions upper portion between internal wall and lower pawl engagement to reduce ratchet head cavity size.

An adjustable wrench uses a ratcheting jaw to rotate bolts of various sizes while preventing wear on hexagonal head corners.

A telescopic rod replaces stuck limit buttons with a rack and pinion gear system to prevent component damage.

Stationary housing with bearings isolates the operator's hand from high-speed rotation and debris, preventing abrasions and repetitive strain injuries.

Segmented rotary joint faces maintain air tightness while allowing 360-degree rotation, preventing soft tube wear from complex high-pressure flow channels.

A holding tool maintains a static position on hydraulic fittings during torque application to prevent component twisting.

Voltage detection during idle periods identifies stroke detector abnormalities, preventing disconnection failures and ensuring reliable torque management.

A pipe wrench uses a thumb wheel with double lead threads to move the second jaw for precise grip.

An angled screw with a chisel edge pre-bores material to prevent splitting, while the tool aligns boards to eliminate gaps.

Intersecting inclined ribs disperse applied force across the handle frame, preventing stress concentration and deformation during weight reduction.

A socket assembly uses an elastic jacket around a metal transmission portion and sleeve to protect surfaces.

A polymer boat propeller wrench embeds a stainless steel hexagonal socket to provide secure grip and leverage.

A retention socket uses a mechanical retaining feature to securely hold non-ferrous metallic fasteners without magnetic forces.

Parabolic guide surfaces reduce energy losses and wear in mechanical percussion mechanisms by eliminating kinks.

Spiral cartridges use pressurized air to move collars upward, preventing drop during swaging and eliminating foreign object debris from ejected pintails.

A hand tool features a rotating locking set that adjusts the second handle angle via a spring-loaded button.

A ratchet wrench design allows drive components to be recessed or extended within the handle body.

A nested hollow guide supports the spring within an arcuate sliding groove to bias the movable jaw.

Segmented clutch ring distributes torque via pseudo-laminate housing, preventing deformation under high load.

Opposing socket rotation in dual heads enables fastener turning in confined spaces without repositioning the tool.

A positioning assembly with a rotatable second jaw and locking member guides fasteners through an arcuate channel.

Segmented wrench handles adjust length to balance leverage force against tool weight, resolving trade-offs between heavy load torque and light load portability.

Segmented stop pins with hardened steel prevent ejection from mounting holes.

A spring-mounted safety bolt with a hemispherical surface enables manual socket attachment without tools while maintaining structural stability.

Segmented toothed parts separate immediately upon reaching target torque, eliminating time lag in disengagement that causes over-tightening.

Cam surfaces on the bit selector automatically retract current bits before extending new ones, eliminating manual unjamming.

A flex-head tool pivot mechanism uses a toothed shaft to engage ratchet wheels simultaneously.

A cordless box wrench uses a planetary gear system to drive a hex insert for turning fasteners in confined spaces.

Segmented axial holder with magnetic retention simplifies one-handed screwing while maintaining compact structure.

Sloping guide surfaces on end caps position the operator's hand consistently, while knurled grips improve friction for accurate torque application.

Segmented colored LEDs provide progressive warnings for torque control, preventing operator misjudgment and value overshooting.

A connector employs a nested radial holding element and release tool to disengage retaining lugs, enabling secure locking in cramped spaces.

An actuating sleeve displaces a coupling sleeve to disengage torque transmission when the screw head enters the workpiece surface.

An elastic sleeve with an X-pattern slit retains fasteners on tools, solving magnetic and adhesive limitations.

Serial three-jaw wrench heads engage tube-nuts in confined aircraft spaces, preventing closure during ratcheting to ensure precise torque measurement.

A ratchet wrench switching device moves a pawl via an intermediary board to change engagement direction.