Portable Power-Driven Tools TRIZ Cases

A switching spring moves between contact positions to close circuits in machine tool switches.

An annular air collecting member with integrated wall bodies protects a centrifugal fan from foreign matter without adding separate filters.

A pneumatic signal generating device uses a rotating valve core and piston pin to produce pressure signals from compressed air.

A power tool control system adjusts motor torque based on detected angular displacement to maintain operator handling.

Staggered grid elongated portions block foreign objects from entering ventilation holes, preventing fan lockage and motor shorting in power tools.

Segmented perpendicular auxiliary handle reduces torsional stress and improves ergonomic comfort during high torque operations.

Regulating members engage T-shaped battery pack grooves to prevent incorrect insertion and improve mounting efficiency.

A power tool system compares pass codes between the handheld device and detachable battery pack to enable or disable operation.

Movable shell members clamp cutting tools to a drill driver, preventing rotation and axial separation to replace multiple single-purpose units.

A charging device uses additional contact means on an interchangeable battery to transmit sensor signals and enable safe power delivery.

Arranging an air guide unit transversely to the tool axis improves heat dissipation from the drive unit without increasing structural complexity.

An elastic positioning section enables relative movement between hard interface components to absorb impact loads and prevent breakage.

A vibration damping element absorbs mechanical energy between the tool housing and battery pack holder, preventing thermal deformation and contact failure.

Relative handle movement actuates the main switch for automatic on-off control, eliminating separate sensors and reducing device complexity.

An intermediary adaptor uses a DC-DC converter to adjust battery voltage, preventing overheating and breakdown in electric tools.

A flexible braking member stabilizes the output shaft via interference fit to eliminate chattering noise in rotary power tools.

Relocating the mode switch to the housing top reduces handle volume and prevents accidental changes during operation.

Universal motor housing accepts interchangeable tool heads to replace multiple specialized devices, reducing storage needs and cost.

A first and second housing connected by an elastic member absorb vibration energy while restricting portions engage to prevent separation.

Side-mounted operation parts release the upwardly urged hook against withdrawal force, preventing drops and enhancing impact resistance.

A detachable accessory device generates impact impulses via a ratchet mechanism to enable percussion drilling in hard materials.

A hand-held power tool switches from standby to active mode using motion parameters detected by internal sensors.

A torso-mounted drill holder with a form-fitting recess and torsion freewheel mechanism resolves overhead drilling physical effort.

Segmented elastic casing protects the battery from liquid ingress while allowing easy removal.

Link mechanism absorbs pressure and twisted forces to protect motor output shaft integrity.

A dedicated insulating component prevents electrical shock risk when attaching an auxiliary handle to a handheld power tool.

An inwardly extending safety ring on the end cap prevents piston ejection from housing rupture, reducing injury risk while maintaining torque reliability.

A hand expansion device uses a spatial movement sensor to control segment alignment during pipe end processing.

A pivoting element with a gripping unit absorbs mechanical forces from machine movement, preventing hose detachment during operation.

A control unit adjusts effective voltage and current to match drive unit loads using detected battery parameters.

A portable roller support device features height-adjustable legs and a stable base for material handling.

Protruded elastomer at the grip lower front absorbs impacts to protect internal control circuits, enabling cordless operation without enlarging the grip.

A controller manages multiple battery packs using pulse-width modulation signals to selectively connect and disconnect power sources.

Axial locking shaft within elastic collet drives quick blade release, eliminating screw-based replacement delays and lost wrench risks.

A hydraulic tool uses a position-dependent pressure relief valve to adjust cylinder pressure based on piston location.

An assembly tool reads process parameters from a readable code attached to components.

A temperature sensor contacts the outer wall of a fuel container to detect liquid heat via thermal conduction.

A token-based system identifies users and assigns personalized authorization profiles to craft tools.

Nesting the motor inside the support tube and placing the battery in the handle reduces the overall volume of the electric ratchet wrench.

An auxiliary handle integrates a grip sensor and signal output unit to detect operator contact with the power tool.

A hand-held power tool selector prioritizes drive motor activation to prevent undesired start-ups from axial contact.

Gas spring mechanism replaces coil springs to increase impact energy and torque delivery efficiency.

A spring-loaded compartment ejects from a knife handle via a single button, solving the two-handed access bottleneck of traditional butt-caps.

A spring-loaded latch prevents intermediate slide positions, ensuring safe tool changes.

Rolling beads replace needle rollers to reduce frictional forces and vibration while maintaining high rotational inertia for effective hammering force.

A portable power tool security system evaluates operator-specific parameters and location data to control machine activation.

A solenoid arrangement inside a driving tool main body housing enables efficient cooling via shared motor airflow paths.

A rotatable protective cover uses a spring-loaded restricting ring and locking member to secure the shield at selected angles.

Integrated auxiliary handle secures dust hose via grip movement.

A battery protection divider galvanically isolates electrical terminals to preserve charge.