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.

An offset inverted hook applies force along the nail axis, eliminating adjacent board leverage and reducing repetitive prying time.

A carpentry tool uses a threaded adjusting rod to modify telescopic gripper segments for precise width changes.

A slip-on hammer accessory uses friction-inducing members to secure attachment while providing increased leverage for effective nail removal.

A steel tie handling device uses an engagement member to penetrate the top hole of a railway sleeper for secure lifting.

A lever arm apparatus lifts articles using a pivotable headpiece, eliminating complex pneumatic structures and reducing manufacturing costs.

A pallet truck uses a pivoting lever mechanism to lift loads via an excavator coupling.

Rugged curved bottoms with recesses increase friction to stop slippage when applying large levering forces.

A vertical pry bar uses a curved fulcrum plate to lift deck boards with high leverage.

A vertical pry bar uses an expanded fulcrum plate to lift deck boards.

A manhole cover lifting tool featuring an adjustable support bar and gyroscope for optimal angle detection.

Integrating a hammer, pry bar, lifting hook, and vault key reduces tool quantity and trip frequency for utility engineers.

Compression springs in a handle chamber absorb impact force to prevent hand trauma from reaction shock.

A breaching tool with a curving wedge head and knurled surfaces separates door frames using mechanical leverage.

A pipe alignment tool uses a chain and sliding bar to hoist and position pipe ends for joining.

A ladder-mounted lifting device pivots around the rung to raise cargo overhead.

An indexable coupling mechanism pivots the tool head to lock it, resolving rigid attachment limits.

An integrally molded metal head combines stepped jaws, a chisel blade, and an offset bent pry bar to remove fasteners without motion interference.

A stamped steel molding removal tool uses a hinged striker shoe to distribute force evenly behind trim.

A resilient buffer structure absorbs impact energy between shaft components, protecting pivoting connections from damage during loosening operations.

A remote pivoting tool uses a lever system to lock landing gear hooks from outside the gear bay.

A prying tool removes skirting boards using a rotating engagement plate.

Composite handles and segmented stands resolve strength stability trade-offs for safe log elevation.

A pneumatic nail removal device applies linear longitudinal force to extract fasteners from materials.

Convexly-curved pry bar lever arm conforms to waist contour, reducing snag risk while maintaining prying force.