Vehicle Cranks TRIZ Cases

Rolling members reduce sliding resistance between the support portion and sliding portion, preventing chain derailment while maintaining high radial strength.

Inner surface strain gauges protect sensors from physical damage while maintaining high bending sensitivity.

Spider-mounted strain sensors measure crankset torque directly, isolating cyclist effort from drive line losses and external factors.

A combined-drive bicycle handle assembly generates motive force through a crank mechanism while steering the front wheel.

Segmented bicycle motor housing fits through frame openings to reduce orthogonal size while enabling easy installation and removal.

A pedal system uses a plunger to lock or release rotation relative to a drive shaft while a cuff retains the user's foot.

A piezoelectric material with optimized ferroelectric particle ratios generates electric power from mechanical strain in bicycle components.

Magnetic triggers on a torsion element detect deformation time differences, resolving shaft sensor misalignment errors in e-bikes.

Segmenting the crank arm into distinct material zones resolves the strength-weight trade-off, dispersing loads effectively.

Co-molding a protected printed circuit board within composite bicycle crankarms creates a single structural piece.

Helical fluting and compression springs decouple crank arm rotation from spindle motion, reducing peak torque demands at top and bottom dead centers.

Divergent arms create a lateral recess that guides debris away from the central shaft, preventing jamming while maintaining structural rigidity.

A motorcycle foot peg uses a vibration isolating bushing to separate the platform from the frame.

A bicycle crank device transmits force through end face contact between a driving member and transmission member.

Positioning stress and temperature sensors in orthogonal planes isolates the thermal sensor from mechanical strain, ensuring accurate temperature compensation.

Segmented connecting assembly uses elastic force for tool-free crank attachment, eliminating complex screw threading.

A detachable end cap connects to the bicycle pedal axle member for component rotation.

A foldable pedal uses an engagement device to switch between positions, allowing the shaft to pivot and the body to fold.

A flat bicycle pedal adapter clicks onto clipless pedals to accept regular shoes.

A cycling shoe cleat integrates electrical connectors to receive power from a pedal interface.

Adjusting bottom bracket height and crank length improves stability while maintaining ground clearance.

A multi-function bicycle pedal uses a removable shoe clip and connecting seat to enable versatile foot engagement modes.

A modular electric assist device with a housing and annular output member attaches to bicycle frames for easy retrofitting.

Bobbin insulates coils from magnetostrictive portions to minimize temperature differences that cause detection errors in assisted bicycles.

Segmenting the base structure from the electric-component housing enables adaptability to various specifications without increasing device complexity.

Segmented strain gauge measurements within the axle and crank arms resolve complexity trade-offs while delivering accurate, real-time power data for training.

A bicycle bottom bracket force sensor uses a segmented main body and cover to protect strain gauges during assembly.

Positioning a strain detector at 0.45 to 0.65 of the crankarm length minimizes secondary stress interference from the opposing crankarm.

An automatic locking system actuates pedal levers via electronic control to engage or disengage traction mechanisms without manual intervention.

Segmented half-shells with a honeycomb core and adjustable axle positioning lower pedal weight without compromising power transmission.

A flat region and right-angle extension prevent peg rotation by abutting the indented component, resolving loose joining mechanisms.

Rotating pedal body moves actuator to engage cleat, resolving interference between crank arm and mechanism.

Strain gauges on a crank axle measure torque via Wheatstone bridge circuits, replacing complex mechanical sensors to lower manufacturing costs.

Relocating the pedal fixing device to the crank's inner side eliminates outer-side safety hazards and accidental unlocking while reducing transverse width.

A bicycle platform uses toe and heel engagement members to secure footwear on pedals.

Replacing foam cores with a dissolvable salt material eliminates manual removal steps and reduces manufacturing complexity for lightweight bicycle parts.

A bicycle bottom bracket sealing gasket uses dual lips to maintain fluid-tight contact with the central pin while minimizing friction.

A cleat and pedal assembly uses a carbide insert to reduce friction between contacting surfaces, preventing seizing in wet conditions.

Two phase-shifted optical sensors determine rotation direction for precise e-bike power control without increasing axial space.

A bicycle chainring uses high-wear-resistant inserts on specific teeth to distribute torque loads across the gear structure.

Offset tooth planes maintain chain alignment during inclination, resolving stability trade-offs.

Electromagnetic forces extend a bicycle crank arm to increase mechanical advantage while retracting it to maintain ground clearance.

A crank arm power measurement assembly integrates strain gauges and a reed switch to calculate and transmit real-time power data wirelessly.

Stationary bottom bracket power measurement resolves signal transmission complexity by calculating torque from bearing reaction forces.

A bicycle pedal shifts its center of gravity forward or backward using a rotation cavity and bent shaft.

A cycle crankset uses a rearward cam offset to self-position the chainring and eliminate pedaling dead spots.

Bayonet-style connecting contours allow easy separation of worn chain rings from durable pedal cranks, reducing manufacturing costs and material waste.

A flat bicycle pedal integrates a slider bushing and pivot elements to enable the pedal body to swing relative to the axle axis.

Segmented sub-members and biasing structures reduce stepping-in torque while preventing accidental cleat release.

A computerized pedal system uses accelerometers and gyroscopes to control retractable shoe grips for secure locking and automatic release.