Vehicle Cranks TRIZ Cases

Segmenting the pedal body and combining polymer grip sections with metal plates resolves strength versus comfort trade-offs.

A cycling shoe fixing device uses a brake sensing module to automatically release shoes from pedals.

Telescopic crank arms extend and retract via an eccentric mechanism to optimize force application without complex gears.

Axial movement of the front sprocket compensates for increased axial length in eleven-plus rear sprocket assemblies, maintaining driving efficiency.

Tri-power exerciser converts linear core sliding into rotational torque via inverted racks, enabling simultaneous upper and lower body engagement.

Nested tubular hangers with internal O-rings prevent water ingress into the bearing assembly, reducing maintenance needs and extending component reliability.

Notched crank arms lock via cam-driven blocks to eliminate vibration and play during rehabilitation adjustments.

Crank arm elements contact front sprocket sides to block twisting deformation, enhancing motion transmission efficiency.

Segmenting the foot platform via a pivot mechanism allows independent angular adjustment, reducing frame size while preventing extreme foot angles.

An integrated electrical generator converts bottom bracket shaft rotation into electricity, eliminating battery replacement and wiring complexity.

A curved drum pedal design enhances foot comfort and dexterity during extended playing sessions.

A controller processes left-right crank arm data to generate non-visual notification commands for auditory or tactile feedback.

A cycling crank casing uses a protrusion to connect signal processing circuitry with spindle measurement electronics.

Variable groove width accommodates foot rotation during pedaling, resolving the trade-off between secure engagement and comfortable operation feeling.

Inverting power placement to stationary pedal body simplifies structure and extends battery life for bicycle signal detection devices.

Segmenting the coupling unit into pivotable members eliminates complex twisting motions required for cleat disengagement.

A planar four-bar linkage moves the seat with translation and rotation.

Segmenting the pedal base and securing it with through bolts distributes high torque evenly, preventing flange breakage during cleat disengagement.

A compact wireless sensor detects crank axle angular velocity and position to determine pedaling states for real-time suspension control.

Spring-loaded rod engages annular groove on pedal spindle to prevent loosening during extended riding while enabling quick detachment.

Dynamic adjustment via elastic traction compensates for concentricity errors and manufacturing tolerances, ensuring stable alignment during rotation.

A screwless sprocket cover attaches to the crank via a conical annular extension and material deformation.

A bicycle bottom bracket shaft uses a multi-part securing element to fix the measuring value transmitter against axial displacement.

Segmented crank arms with selective interfaces allow users to customize resistance and motion patterns, overcoming the limitations of fixed-length designs.

Single pedal pressure sensor measures orthogonal force to calculate output power, reducing device complexity compared to multi-sensor strain gauge networks.

Cleat adapter system dynamically adjusts shoe cleat position via sensors and actuators, resolving static positioning limits.

A one-piece crankset uses composite arms and metal intermediate rings for bearing support.

Positioning portions on the crankshaft determine relative phase positions of the crank arm and sprocket, preventing relative rotation during assembly.

Relocating the adjustment mechanism to the fixed jaw branch prevents non-linear tension drift and premature wear.

A cycling pedal body pivots on a horizontal axis via a spherical rolling joint and roller bearing to accommodate toe orientation.

Rounded sole projection minimizes turbulence while lever-based cable closure enables rapid transitions between multisport disciplines.

A detection apparatus uses a patterned magnetic sleeve with a coil and Hall sensors to measure induced electromotive forces and voltage changes for precise parameter calculation.

An integrally molded pedal body and central axle eliminate separate bearing components through a precise rotation gap.

A bicycle pedal detection device integrates an electronics module into the crankset spindle using a radially expanding wedge for secure mounting.

Segmenting the locking mechanism into a universal outer sleeve eliminates bulky frame integration while maintaining hidden anti-theft protection.

A bicycle pedal assembly uses pawls to connect the axle and pedal body.

Strain gauges on a crank axle measure torque for accurate power output, avoiding complex mechanical installations.

A single-sided power meter system estimates total bicyclist exertion using acceleration differentials between pedals.

An integral flange on the fixing nut presses the ball bearing inner sleeve, eliminating separate washer assembly steps and preventing uneven contact stability.

Flexible tab spring clips secure pedal shafts in crank bores, eliminating threaded connections and reducing assembly complexity.

Conformal surfaces and embedded magnets guide cleat engagement via downward pressure, eliminating forceful upward disengagement motions.

Segmented frame sections and inverted component placement resolve tool-free folding complexity while maintaining inherent stability.

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

Strain gauges on bearing support beams detect pedaling torque to resolve accuracy and complexity trade-offs in electric bicycle motor systems.

A bicycle pedal slider assembly enables lateral movement of pedals relative to the frame.

Segmented detecting circuits with angled strain sensors measure pedal forces and moments, reducing measurement errors in asymmetric crank designs.

A control circuit verifies device compliance using shared data generation rules to permit electric motor operation.

Dual slider cranks with asymmetrical cam tracks maintain continuous power transfer at low RPM, eliminating dead spots and inertia reliance.

Segmented hat-shaped buffer and support base vary protrusion height to compensate pedal gaps, extending cleat service life.