Crowbars TRIZ Cases

A lever member with bearing surfaces transmits pivotal forces to trailer hatch mechanisms.

An ergonomic tool reduces manual lifting force by positioning a handle at an obtuse angle relative to a vertical member, preventing accidental lid closure.

A gate removal assembly uses a lever arm to extract side gates from stake holders without manual force.

An I-beam handle and transverse head cavities reduce vibration transmission, resolving the trade-off between user fatigue and striking force.

Segmented crowbar heads nest handles to shrink volume, easing worker burden in confined spaces.

Splined pin assemblies enable a pivoting claw to lock at discrete angles, allowing precise positioning for nail extraction in confined spaces.

A hand tool with pivotally joined halves and horizontal gripping jaws extracts fasteners from any depth.

A compact rescue tool uses a sinusoidal hook and handle leverage to generate high torque for uncoupling seized fire hose connections.

A plying tool with a double-hinge device moves members into crossed arrangements.

V-shaped arms suspend the axle while discrete contact points minimize grease accumulation on solid or hollow axles.

A staple remover uses a laterally flared blade to project staples into storage.

Remote cable actuation releases the safety arm without reaching under machinery, while a spring-loaded tooth automatically engages the mower deck.