Portable Percussive Tools TRIZ Cases

Segmenting torque paths into two angled drive units eliminates complex transmission systems, reducing mechanical component count and manufacturing costs.

A tapered cooling air duct maintains constant flow velocity to reduce resistance and heat buildup in hammer drill engines.

A hybrid percussion mechanism body combines an elastomer drive-side part with a steel tool-side component to integrate guiding and sealing functions.

A percussion mechanism guide lug extends beyond the control disk to provide precise guidance and intercept impact impulses.

A control method detects rotary motion about a working axis and pivoting motion about a transverse axis to manage motor torque output.

A side handle decouples vibration amplitudes through a resiliently deformable connecting section, reducing transferred vibrations without complex assembly.

Porous sintered steel pistons retain lubricant to cool hot spots and reduce vibration, extending tool life.

An inclined oscillation axis positions a counter mass to balance heavy driving mechanisms and reduce static torque requirements.

An eccentric contact point redirects percussion energy to dissipate kinetic forces through controlled friction within the guide tube.

Segmented upper and lower guide features inhibit lateral cocking while asymmetric placement simplifies assembly.

An integrated impeller driven by the motor output shaft extracts dust from the workpiece, eliminating bulky external vacuum connections.

Segmented housing isolates tool holders from shock transmission during hammer operation.

A rotary shaft with a spiral hole moves lubricant outward during rotation, suppressing component wear without complex sealing mechanisms.

A hydraulic hammer valve spool displaces lubricant from an internal storage chamber to bearing surfaces during tool operation.

Replacing rubber with a pneumatic cushion eliminates elastic fatigue, maintaining vibration reduction and control precision during high-frequency operation.

A segmented isolator housing confines abrasive powder generated at hammer-anvil contacts, preventing conductive contamination on the circuit board.

A driving tool coordinates fuel injection with trigger activation to optimize combustion timing.

Segmented bearings and O-rings stabilize the anvil, eliminating bit vibration caused by clearance.

An asymmetrical spring mechanism with distinct stiffness values counters periodic return blows, reducing physiological burden on the user during operation.

An exhaust channel on the hammer member releases gas early in the return stroke, reducing vibration without compromising output power.

An elastic buffer member between the anvil and output shaft absorbs collision forces to reduce vibration and enhance component durability.

A hand-held power tool uses a communication interface to receive changeover instructions from a user guidance unit for operating mode selection.

A double-acting drive piston alternates hydraulic pressure between two chambers to eliminate mechanical wear and extend service life.