Metal-Working Hand Tools TRIZ Cases

Ergonomic hand tool holder distributes weight to the dorsal saddle area of the user's hand.

Rear jaw halves overlap via depressions and projections to increase the opening angle.

A handle attachment uses a V-shaped guide to auto-align rotational position during insertion.

A flexible utility handle uses a cable tension bolt to adjust rigidity through a coiled spring mechanism.

A control device detects electric motor current drops to trigger automatic switch-off in electrohydraulic pressing tools.

Segmented tool members attach to a hydraulic actuator, enabling precise positioning in confined spaces while reducing operator weight.

A switchplate actuated by a single finger shifts transfer pins to convert retaining ring pliers between internal and external modes.

Thermal compression transforms smooth foam into a textured surface that mimics human fingerprints to provide enhanced grip traction on bare skin.

A telescoping pole with a grasping mechanism enables remote manipulation of objects at height.

A vehicle suspension spring spreader uses a kinetically spinning nut to retract pivot arms for quick setup.

A pressing device secures the pivot bolt with a non-releasable locking element to prevent axial displacement.

A threaded mandrel and drive rod bias the spline adapter away from the housing contact area to enable radial compression during extraction.

Guide channels align roller chain links to eliminate manual misalignment during pin removal and insertion.

A removal tool applies lifting force to disengage a servo horn from an output shaft via screw rotation.

A valve core gripper device uses an extending grasping collet to securely hold and extract small ball-end components from tight spaces.

A tensioning device uses stacked piston modules to apply axial force directly to a pulling member.

A dual-thread spindle and locking sleeve enable continuous rotation to drive pins, eliminating sequential steps and manual hammering.

Rigid outward pegs indent skin to encourage glove use, solving slip risks in wet oil and gas environments.

Interlocking grooves replace steel balls to eliminate sliding and reduce assembly complexity.

A tapered sleeve tool compresses a wire lock, enabling oversized bearing installation despite retaining device interference.

Axially displaceable bit holder expands tool inserts radially to resolve storage density versus accessibility trade-offs.

Segmented gripping jaws and a ratchet mechanism apply controlled rotational force to remove seized oil filters without housing damage.

A pneumohydraulic inserting gun uses a pneumatic amplifier group to compress thrust fluid for rapid rivet deformation.

A tool stick connector uses a slide actuator to move flexible tongues for secure grip attachment.

A dual-material paintbrush handle combines a soft upper section with a stiff lower transition for secure ferrule attachment.

Segmented curved clamp members grip the CV axle housing to apply coaxial force, resolving removal difficulties caused by bound axles.

A plunger mechanism secures retainer placement to prevent breakage during bumper sensor assembly.

Integrated locking mechanism eliminates small parts to reduce complexity and cost while maintaining reliable attachment.

A removal tool uses a threaded protrusion to deform the adapter wall and create interlocking recesses for extraction.

A hose tool uses hinged handles and a plunger bar rack to guide fittings into hoses.

Displaceable pressing elements coated with low-friction materials reduce surface roughening during radial compression, ensuring complete material deformation.

A combined screwdriver handle integrates an elastic abutment on the rod to stabilize the removable storage seat during extraction.

Anti-rotation device prevents bolt unscrewing by maintaining torsion-proof fixation during tightening.

Rotating deformable clips with ramp and drive surfaces disengage fluid couplings, eliminating labor-intensive manual separation.

A hook member engages the tongue while a moving member breaks it off diagonally.

A cuff device with curved ends and extensions slides over a zipper pull to engage the mechanism using arm muscles.

A mounting tool with actuating hooks and a support finger slides mirror feet onto bases.

Telescoping tubes adjust reach distance while a forearm support reduces user fatigue and prevents re-contamination.

A blind rivet nut setting tool with a polygonal stop element and latching mechanism for precise stroke adjustment.

A reverse-molded grip component uses a two-layer TPE structure to isolate vibration and reduce user fatigue.

An adjustable tool handle varies spring load to balance force transfer efficiency and shock absorption.

A custom cup tool extracts track bar bushings directly on the vehicle using a bolt and ball bearing assembly.

Raised textured portions on a molded grip balance frictional retention with aesthetic appearance through local quality differentiation.

Inner protrusions hook and guide filters to replace them quickly, reducing downtime in bioreactor systems.

Torical and hemispherical grips with magnetic wedges accommodate limited dexterity by distributing pressure evenly across digit surfaces.

A puller uses a movable synchronizer to coordinate claw pivoting for safe engagement.

Color-coded heat-shrink sleeves replace small text labels to resolve readability issues for visually impaired users.

A plier assembly uses a bias spring to align support blocks during handle movement for controlled retaining ring deformation.

Non-circular joining portion rotates actuation projection to prevent steering knuckle abrasion during expansion.