Portable Percussive Tools TRIZ Cases

See how a mechanical and electrical adapter enables one motor-driven dust collector to attach t

See how merging air vent opening with removal motion prevents accidental dropping of dust attac

See how shared battery control between power tool and dust collector prevents work interruption

A split grip and integrated cylindrical case holder simplify axial motor-gearcase assembly while improving switch and wiring workability.

A fixed-first-end, movable-second-end air conduit preserves motor cooling during reciprocation while reducing conduit wear and overheating.

Elastic damping elements between the tool housing and battery interface absorb shocks and vibration to protect rechargeable batteries.

A nested bearing layout places both supports on one plane, shortening the rotating portion and improving power tool handling.

Pivoting jaws clamp and guide ground rods during axial hammer impacts, reducing manual lifting, operator fatigue, and rod surface marring.

Motor commutation cycles reveal fastening completion, enabling automatic impact tool shutdown to prevent over-tightening and workpiece damage.

A choke coil integrated between field coil and brushes suppresses commutation EMI noise while preserving reliable motor operation.

Motorized jaws clamp and hold a ground rod while a powered hammer delivers axial impacts, reducing manual lifting and operator fatigue.

A nonconductive cover lets the inlet stay near the brush retainer, improving motor and brush cooling while maintaining insulation.

Rear-entry screw fixation joins the motor housing and rotation mechanism case to cut tool length, parts, and weight while keeping stable clamping.

A movable handle coupling and fixed battery housing absorb impact energy while reducing operator vibration in battery-operated machining tools.

A sliding air conduit guides motor cooling airflow in a reciprocating power tool while reducing elastic wear, seal loss, and overheating.

Angular velocity sensing and motor shutoff reduce power tool kickback while limiting false shutdowns through threshold-based control.

A separator-supported latch cuts cover parts and assembly steps, reducing battery pack height while keeping secure engagement.

Lorentz-force-driven conductive fluid replaces mechanical impact parts to cut wear and noise while enabling precise force control.

A rotor-driven fan and guided duct force air through motor-case fin passages to limit heat buildup and support continuous operation.

Two slide-on battery receptacles on one housing wall save space, keep motor units compact, and still provide enough power for working units.

Detachable U-shaped frame elements protect and secure dual tool batteries against impact while keeping battery removal and parking practical.

Angular velocity sensing triggers BLDC motor shutdown or adjustment during binding, reducing kickback and helping maintain user control.

Fast Hall sensor transitions support brushless power tool motors up to 50,000 RPM while balancing torque output against battery runtime.

A modular guard-bracket shields dual rechargeable batteries from drop impacts by absorbing and distributing energy through the tool housing.

Handle-position sensing delays chipping hammer drive activation until lever movement reaches a threshold, reducing unexpected full-power start-up.

Repeated axial impacts and integrated clamping let operators drive ground rods faster at a comfortable height with less fatigue.

A pivoting lever and Hall-sensed position control stage motor speed so a chipping hammer starts under control before full impact energy is applied.

By tracking drive shaft rotation after drag torque stabilizes, this case detects power tool transmission backlash without extra sensors.

A two-part battery interface lets users replace worn contact elements without opening the tool housing, improving service life and reliability.

A rear end cap seated within the housing supports the motor bearing to keep rotor-stator alignment precise without increasing tool length.

An electrically driven quick coupling with status sensing enables fast, secure tool changes and broader handheld push-pull tool use.

Supporting and wall-contact mechanisms limit frame shaking during shaft lifting, improving hole alignment and bolt insertion accuracy.

Two separate motors let a rotary hammer tune spindle speed and piston strike frequency independently for more versatile drilling.

Pre-tensioned elastic supports let the inner housing float axially, cutting impact tool vibration transfer to the user.

An offset inlet and lateral filter path keeps dust away from the filter, improving borehole productivity without enlarging the power tool.

An axial bearing between the spring element and detent bodies cuts friction and wear while preserving torque decoupling in hand-held power tools.

Recessed housing side edges, optional elastomer filling, and lower-stress joints cut vibration transfer and compressive stress in hand-held tools.

Localized hardening and laser peening strengthen impact tool anvil strike zones while preserving toughness to reduce fatigue stress and fracture.

A movable locking collar and compressed gasket secure the bit during drilling while blocking dust and debris inside the adapter.

A cantilevered boss sleeve on a bearing isolates the intermediate shaft, suppressing friction-induced impacts during drill mode.

A rectification member joins cooling and dust-collection airflow to direct axial cooling through the transmission mechanism and improve durability.

Rotating or axially moving the chuck collar repositions ball retainers, enabling tool-free bit changes while keeping the impact tool holder secure.

A nested locking sleeve secures gear positions and aligns the shifting element for compact, reliable hand tool gearbox assembly.

A compact elastic-member layout urges the grip body in two directions to absorb striking impacts while keeping the shock absorber small.

A belt-mounted storage member keeps replacement heads on the power tool for quicker changes and less time spent searching tool boxes.

A bearing-isolated boss sleeve decouples the intermediate shaft to suppress friction-driven impacting in drill mode and reduce wear.

A two-stage planetary transmission with FOC lets a brushless drill reach 2800 rpm while switching between high-speed and high-torque output.

A radial lock-and-release layout beside the drive unit keeps a power tool suction attachment compact, secure, and easy to detach one-handed.

A nested two-stage planetary drive with FOC lets a brushless drill balance 2800 rpm output, torque, and battery energy use.

Localized hardening and laser peening strengthen critical anvil surfaces, cutting stress 12.2-30% while preserving core toughness.

A breakaway fixed ring gear acts as a slip clutch to prevent transmission and tool holder damage during torque blocking.

A breakaway-torque ring gear acts as a slip clutch to prevent gear locking and protect the tool holder during overload.

By receiving the anvil inside the spindle support hole, this layout keeps the impact tool compact while preserving hammering operability.

A bellows-like dust collection cup adjusts its length so hammer drill bit tips stay visible during chipping without removing the cup.

A rear compressed-air reservoir behind a sealing flange cuts seals, weight, and airflow losses in impact cylinders for faster strikes.

A sealed detachable filter and dust box retrofit improves dust capture in hand-held power tools while easing maintenance and protecting electronics.

A pivotable handle lever and sensor adjust drive speed from grip force, helping chipping hammers start with better control and safety.

Connection detection lets the controller adapt motor speed, power use, and assisting functions when a dust collector is attached.