Spanners TRIZ Cases

A push button actuates biasing members to urge protrusions into a shaft, creating a secure mechanical lock.

Segmented jaw teeth prevent slipping during rotation, ensuring complete loosening without damaging threaded pipe joints.

An electric power tool uses angle sensor feedback to dynamically control energy pulses during tightening operations.

A bendable torque wrench uses convexly curved contact surfaces to enable rapid angular displacement of the detent member.

Cylindrical rollers in a one-piece handle engage longitudinal grooves to set release torque, reducing assembly complexity compared to multi-part designs.

Segmented alignment tools retain fasteners to reduce search time and improve productivity in complex assemblies.

Relocating the reversing mechanism to the handle reduces ratchet head size for tight spaces and prevents entrapment.

A fixed adjustable wrench uses a lever to move an engagement member that interlocks with teeth on the adjustable jaw for precise gap positioning.

Segmented upper, central, and lower claws expand contact area on bolt corners, preventing head stripping during high-torque adjustment.

A wrench case with a pivotally coupled door and elastic latches organizes combination tools.

Optimized ramp angles balance torque transmission strength against pawl jamming reliability in confined spaces.

A fastener-installation system uses driver jaws that pierce and spread structure material to create a path for automatic fastener loading.

Segmented sealed compartments isolate internal lubrication from debris and moisture, preventing pawl disengagement and rusting during operation.

An electrical screwdriver integrates a dynamic torque limiter that slips to protect workpieces while allowing full power transmission via an electrical switch.

Segmented handle pivots between fork and screw drive modes, resolving size limitations in tight workspaces while simplifying component replacement.

Segmented keys and sleeve ramps in the reaction socket assembly prevent slipping during horizontal or inverted power tool operation.

A bidirectional ratchet wrench uses a planetary gear mechanism to amplify rotation speed from the handle.

A double-fulcrum torque wrench equalizes action forces at both ends, resolving single-fulcrum measurement errors caused by varying wrenching positions.

Segmented retaining rings replace complex main body grooves to resolve manufacturing precision trade-offs while securing the ratchet wheel.

Controller constrains motor velocity before torque reaches limits, reducing dispersion and work time caused by inertia at high speeds.

A nut removal tool uses a canted coil spring to rotatably couple a cage to a housing for secure gripping.

Asymmetric cam surfaces convert rotation into progressive radial force, securing smooth Schanz pins without slipping under removal torque.

A torque screwdriver integrates a digit roller counter within a hollow cylindrical handle section for direct torque adjustment display.

A drive unit captures screw connection parameters to automatically set pressure valve values.

A beveled anchor driver head provides visual confirmation of pilot hole alignment during ceiling installation.

An actuator moves a stick inside the wrench body to provide vibration alarms without shifting gravity or compromising sensor accuracy.

Replacing bulky springs with magnetic trip mechanisms, this wrench eliminates misoperation risks while enabling precise digital torque monitoring.

Intersecting inclined faces and axial support portions distribute stress to handle larger torques without increasing mounting portion length.

A multi-functional utility tool integrates a regulator cap wrench, service valve wrench, and pressure adjustment member into one elongate body.

A torque wrench uses a cam surface to detect force accurately.

Spring-loaded blockers replace fragile thin sheets in steering devices, eliminating wear from protrusions and enhancing structural durability.

Integrated actuating and restoring members eliminate screw connections to prevent loosening while enabling simultaneous button actuation.

Segmented torque retaining device prevents unitary rotation of fasteners, reducing material weight and tooling costs compared to integral flag bolts.

A ratchet ring uses multiple driving faces and a recessed step to securely engage fasteners of varying sizes.

Segmented connecting and working members with elastic abutting members allow the tool to lock at specific angles for stable operation in narrow, long spaces.

Two offset pawls engage a 60-tooth gear ring to reduce the swing arc from 6° to 3°, maintaining mechanical strength in confined spaces.

Segmented stop members retain ratchet wrench switch shafts, preventing pull-out and pawl obstruction.

A flexible thrust element pushes joining elements through a closed hose to remote discharge points.

Color marks on the wrench body align with a movable jaw pointer to identify size ranges without grease obscuring text.

Curved recess surfaces in the socket drive end opening distribute torque loads to eliminate stress concentration at inner corners that causes fracture.

Integrated motor and anti-rotation chuck eliminate manual wrenches, reducing operator fatigue during gas turbine engine assembly.

Segmented engagement teeth prevent slippage on worn or corroded hex fasteners during high-torque operations.

A pivotable magnetic wrench attaches to work surfaces via a magnetic mount, enabling one-handed operation while freeing both hands for other tasks.

An oblong abutting block converts knob rotation into linear motion to fully disengage the gear, resolving incomplete meshing issues.

A modular motorcycle tool kit uses interchangeable drivers and magnetic retention to provide compact storage for various wrench sizes.

Asymmetric slide block geometry constrains jaw movement, preventing detent disengagement under large torque forces.

Programmable transponder inserts store correction coefficients to eliminate manufacturer-specific codes and resolve reprogramming bottlenecks.

A ratchet wrench switch mechanism uses a moving member to swing a pawl unit into mesh with the ratchet for direction changes.

Elongated tubular socket wrench features diametrically opposed holding arms that extend beyond the distal end to grip bolts and nuts.

A modular driving shank assembly uses elastic clamping pieces to secure interchangeable drive heads and connectors within a hollow tube.