Railway Coupling Accessories TRIZ Cases

Segmented shell parts transfer thrust via welding seams while a central beam carries traction, reducing material fatigue in rail vehicle couplers.

A railcar uncoupling lever assembly uses nested U-shaped glides to maintain smooth sliding motion between levers.

Embedded dry lubricants in guide pads prevent binding and maintain smooth lever movement despite UV degradation of plastic components.

Segmented shaft and bush components provide dual-side operation capability, resolving marshalling inefficiencies caused by single-sided coupling limitations.

A telescoping uncoupling lever uses a biasing member to control extension and compression of railcar components.

A rotatable coupler assembly shifts between stored and extended positions via a pivot frame.

An elastic stop element in a shunting coupling safety gear eliminates transverse play and uncontrolled movements during pivoting operations.

Internal cavities in austempered ductile iron knuckles distribute forces to resolve fatigue cracks and reduce weight.