Spanners TRIZ Cases

A sliding sleeve and ball detent lock power tool accessories axially and rotationally, improving torque transfer while easing attachment and release.

An openable motor-driven gripper tightens hydraulic cylinder heads around the piston rod, cutting manual effort and disengagement risk.

Spring-loaded retention and spline engagement keep the tool bit axially aligned, reducing runout and improving holder reliability.

Distance sensing enables a tightening tool only within a set workpiece range, preventing wrong fastener length use and workpiece damage.

Ultrasonic time-of-flight guides threaded fastener tightening by correcting target tension for joint thickness and screw heating.

Multiple fastening signals, including torque, impact cycles, and battery voltage, improve go/no-go decisions when galling distorts torque alone.

A fixed-angle holder locks a variable-angle orthopedic tool at the chosen angle to improve drilling stability and reduce cam-out during screw insertion.

Positioning guides align bolt holes to hidden screw holes, enabling secure multi-bolt assembly in confined or poorly visible spaces.

A dual-sleeve spindle lock uses ball detents and mating members to secure power tool accessories while enabling quick release and alignment.

Timed torque and vibration data let a server detect electric screwdriver faults early while keeping tightening control precise.

A stationary pressure sensor support separates force sensing from the rotating shaft, preserving precise and reliable speed control.

A magnetic male-female bit connector speeds drill and torque bit swaps while keeping secure holding in tight spaces.

A combined hand switch and loading mechanism moves a selected bit into the holder and locks it securely for one-handed operation.

Reverse rotation seats the nut runner shaft in the spindle fitting before tightening, preventing misfit and reducing fastening time.

A continuously variable transmission adapts spike driver speed to hard points, improving railway fastener torque, ergonomics, and productivity.

A threaded stud, coupler, and reversible ratchet retract brake caliper pistons in tight spaces with less manual effort.

Current-based state detection identifies drill bit type and stops the motor at drill-through to improve efficiency and prevent empty-run damage.

Integrated LED lighting and an elastomeric damper improve visibility at angled tool holders while protecting sealed electronics from vibration.

A movable bearing and stepped sleeve let the shank decouple under excessive torque, reducing surface wear and bit holder damage.

A separable driver and vacuum pick tool enable quick fastener-specific changeover while maintaining reliable pickup and driving in automated assembly.

Controlled heating softens the adhesive bond while spring tension extracts a panel insert without prying damage to composite panels.

A wave spring and thermoplastic sleeve adjust clutch torque while preventing slip without a separate lock ring, shortening tool length.

Automatic regulation of torque, pretensioning force, and speed keeps networked tools aligned for accurate simultaneous fastener tightening.

An axially movable suction surface seals on the fastener head to maintain vacuum holding despite coating unevenness on drive structures.

Cambered and skewed raceways with spring-biased rollers enable near-simultaneous clutch locking, high torque transfer, and low dead travel.

An elastomer prestressing ring radially supports guide elements to prevent tilting, simplify the setting head, and detect fastening malfunctions.

A spring-loaded lanyard keeps removable tool pieces accessible and retained while retracting straps to prevent obstruction and entanglement.

A guide pin nested in the socket cavity engages the tool shaft hole to cut wobble and run-out without increasing socket height.

A retainer clip and angled guide hold the tool hands-free, enabling repeatable long screw placement in cramped framing locations.

A winding transmission driven by a motor controls driver bit travel precisely, replacing air hoses while keeping the screw fastening tool compact.

An offset right-angle adapter lets heavy-duty drills reach confined or angled locations while adding leverage, quick bit changes, and work-area lighting.

Radio tag time-of-flight lets an electric tool identify the target object, auto-set its mode, and link result values without multi-anchor setup.

Dual-motor actuation and an integrated fastener feed cut blind fastener setting steps while improving position and load control.

A radial clamping coupling with Hirth gearing enables play-free, centered tool output changes without special tools, reducing downtime.

A flexible vacuum gripper and externally adjustable feeder let one automatic screwdriver handle varied fastener sizes with less downtime and error.

A movable member separates the rotary arm from the spring during oscillation, preserving reset force and extending service life.

Chamfered alignment regions guide non-circular tool bits into matching holders without manual rotation, speeding insertion and use.

A movable internal gear and compact sensor layout let a driver-drill detect speed mode and apply higher clutch torque in low-speed operation.

Movable support plates and socket assemblies absorb shaft pitch variation, enabling simultaneous temporary tightening without part replacement.

Blasted compressive residual stress on the tool bit tip boosts wear resistance while curved flutes and a reduced shank cut fatigue-driving stress.

A sleeve-and-ball-detent coupling secures power tool accessories against axial and rotational misalignment while enabling quick release.

A frustoconical centering sleeve realigns the nut tool on vehicle chassis bolts, enabling reliable high-torque tightening across multiple fasteners.

Extendable moment arms and a pivoting ball joint increase mounting torque while preserving precise, stable instrument positioning with less effort.

Sensor feedback and brief reverse motor pulses let a hand-held pulse tool correct for joint friction and reach target torque faster.

Cam-guided movable jaws grip nut drive flanks instead of corners, reducing damage while fitting both metric and English nuts.

Indirect torque estimation from detected impacts lets the tool store real tightening results and auto-tune shutoff settings for varied screws.

Contoured hex engagement channels grip damaged fasteners for rotational removal, while a reverse-threaded sleeve releases the extracted bolt.

A bearing-supported sleeve with axial vacuum passages keeps screw suction at the tip, improving narrow access and reducing wobble during tightening.