Driving Chains TRIZ Cases

A 0.8-3 mm pitch chain uses pin-bush layout and work-hardened stainless steel to stay compact without losing mechanical strength.

Asymmetric bushing fits in the internal link assembly improve chain assembly flexibility while supporting precise pin rotation and roller support.

Using pins with separate joint and joining diameters, this case improves sprocket chain length control while keeping outer plate deformation uniform.

A nose-and-groove labyrinth seal redirects overload force in an articulated chain to raise tensile capacity and reduce material fatigue.

A threaded pin, nut, and axial stop create a fast interference-fit chain repair that avoids weak joints and reduces downtime.

A self-centering greasing setup uses a spreading plate to coat track chain pins evenly, reducing wear and preventing excess grease.

Inner protrusions on outer link plates narrow tooth clearance, improving chainring guidance while reducing noise and wear.

A position-restricting inner-link structure lets bushings rotate freely, reducing wear, easing assembly, and improving chain misalignment tolerance.

A position-restricting chain link structure reduces bushing wear while allowing greater misalignment tolerance, longer life, and easier assembly.

Different backside heights on inner and outer link plates cut chain-guide contact area to reduce friction, wear, vibration, and noise.

A joining chamfer on chain joint pins reduces plate deformation during press fitting, creating more uniform interference and longer chain life.

Dual engaging surfaces in an articulated drive member cut sprocket relative movement, reducing wear and frictional losses in power transmission.

Using pins with larger joint diameters and smaller press-fit ends simplifies chain length adjustment while limiting outer plate deformation.

Annular retaining spaces keep sealing rings slightly compressed to limit leakage, cut friction, and extend roller chain service life.

A lug-and-groove labyrinth seal redirects overload forces in a link chain, raising tension capacity while reducing stress concentration and fatigue.

A concentric shell-core roller splits low-friction wear resistance from structural strength, reducing stress and simplifying chain roller assembly.

Dry-lubricating coatings on chain bolts cut lubricant use, reduce wear, and support higher-temperature continuous press operation.

Protrusions on outer link plates narrow tooth clearance to guide chainring meshing more smoothly, cutting noise without weakening the chain.

A chamfered pin-to-outer-plate press fit evens contact pressure, reduces plastic deformation, and improves chain fatigue strength.

A silent chain extends a wire along connecting pins to restrain chordal oscillation and reduce impact sound without increasing assembly complexity.

Flat bend-blocking surfaces in pin holes engage rocker pins to prevent backward link bending, reducing string vibration and noise.

Spacers block lubricant leakage from inner plate apertures, reducing abrasion and extending service life under high loads.

Varied sprocket tooth forms disrupt uniform engagement timing to lower resonance noise while maintaining manufacturing simplicity.

Segmented link plate structures balance tensile loads to prevent pin bending, reducing wear elongation in silent chains.

High inner profiles prevent premature sprocket contact while low tensile hardness avoids pin warping, reducing frictional losses.

Spring arms on adjacent hinges resist flexing to prevent buckling, eliminating complex locking mechanisms and reducing vibration loads.

Steel rings in bushing grooves grip pins to retain grease, preventing particle ingress that causes wear.

Contour-matched shaving molds remove burrs from roller chain link plates, extending mold life and reducing manufacturing costs.

A motorcycle chain link uses a conical pin end and deep countersink to anchor the fastener securely without protruding bolt heads.

A bicycle chain plate structure uses a movable sleeve to create adjustable spaces for precise tooth engagement.

Protruding portions on silent chain plates allow larger pin holes without adjacent interference, reducing wear elongation.

Asymmetric link plates with a stop block prevent pin separation during shifting, resolving the strength versus smooth operation contradiction.

Parallel straight portions in pin holes constrain locker pin movement, suppressing vibration and undulation without increasing sliding resistance.

Accommodation portions nest inner plate rims to eliminate dust gaps, preventing accumulation that causes unsteady transmission and shortened service life.

Chamfered bushing edges enable resin insert-molding that prevents axial displacement and rotation, reducing wear elongation in food filling machines.

Strategic overcuts in low-stress zones improve toothed plate strength and wear resistance while reducing noise and vibration.

Segmented pin design enables end-user reassembly of bicycle chains without riveting machinery while maintaining tensile strength.

Curved inner flank profiles on silent chain link plates enable smooth sprocket engagement through varying geometry.

Elongated pin holes in silent chain plates absorb reactive forces during sprocket engagement, reducing impact noise and extending component life.

Pin head bores align overlays with chain links, improving visual appeal without replacing the entire mechanical assembly.

Optimized silent chain link geometry with specific flank angles and crotch ratios enhances fatigue strength.

Chamfered outer link plates minimize contact with sprocket teeth, eliminating downshifting recesses that weaken chain ring strength.

Segmented rocker pins with a pitch line gap enable elastic deformation that resists link flexion and reduces impact noise.

Inner link plates with thickness-to-width ratios exceeding 1.6 increase fatigue strength without adding manufacturing complexity.

A segmented chain link unit uses a neck portion to restrain an assembling rod within a connecting hole for tool-free assembly.

Elastic damping layers on nose-shaped contact surfaces deflect impact pulses, reducing swinging and sprocket replacement costs.

Link plates engage sprocket teeth before guide plates, preventing transverse runout noise while maintaining stable chain engagement.

Connecting plates distribute force across leaf chain outer plates, preventing deformation and wear from concentrated stress during high-load transmission.

Curved rocker pin surfaces distribute forces across four contact zones, reducing wear and extending service life in timing chains.

Asymmetric link plate profiles disrupt regular meshing impulses, reducing strand vibrations and resonance in toothed plate-link chains.

Rolling contact surfaces on the pin hole reduce wear and allow miniaturization by eliminating sliding friction between the pin and inner plate.

Locker pin gaps allow dynamic pitch adjustment to reduce string vibration noise and prevent tooth skipping.