Portable Percussive Tools TRIZ Cases

A ring-shaped expansion prevention portion on a gear case stop member restricts tubular front end deformation during vibration tool operation.

Grooved driver cover eliminates linear pins to prevent vibration-induced bearing separation while maintaining lubricative rotation.

Positions the power supply between housing regions using nested interfaces to protect components from impact while maintaining operational stability.

A torque coupling system with a return spring absorbs empty strike momentum to protect the tool housing from damage.

A sliding dust collector guide rail accommodates longer tool accessories by extending deeper into the housing.

A hammer drill design shifts the barycenter forward to reduce striking vibration.

Segmenting the hammer head into a replaceable striking member and permanent base reduces waste when the impact surface wears out.

A crank hub and pin mechanism converts motor torque into piston reciprocation for axial impacts.

Transverse handle suspensions reduce vibration transmission, preventing constructional length increases in compact power tools.

A one-way clutch decouples a metal suction fan from the motor shaft to sustain rotational inertia, clearing residual powder dust trapped in the hose.

Sintered steel con rods resolve strength versus weight contradictions by providing high compressive strength and self-lubrication through internal porosity.

Cantilevered wobble drive hub mounting isolates bearing loads from the countershaft, preventing friction rust and unintended operation.

A positioner shifts an elastic member support point in an impact tool to adjust striking force across multiple operational modes.

The control unit maintains high motor rotation speed after trigger release to eliminate time lag, reducing noise and vibration while improving work efficiency.

A self-lubricating bearing sleeve supports the striking piston in a decoring hammer to reduce mechanical wear.

Redistributing fill material between the head and handle adjusts impact force, eliminating the need for multiple specialized hammers.

A tool holding system uses spring-loaded jaws to clamp anchors securely for single-handed operation.

A control member prevents forward weight movement, allowing the elastic element to absorb impact force while maintaining positioning accuracy.

Segmented housing shells apply axial preload via frictional clamping, resolving bearing service life issues under high radial forces.

A drive assembly converts continuous motor torque into consecutive rotational impacts using a camshaft and movable hammer.

Opposite-phase balancing reduces operator fatigue while a repositioned wobble bearing shortens the swing rod to minimize device volume.

An impact tool adjusts motor speed using an elastic grip detection mechanism.

A linked member moves between inhibiting and allowing positions based on drive mode, resolving ambiguous user recognition of the locked switch state.

Segmented handle design with elastic members isolates grip vibration from the tool body, improving operator comfort during impact operations.

A tool attachment housing a percussion mechanism applies axial impacts to an insert tool via a non-rotating receptacle.

A rotary hammer uses two separate intermediate shafts to transmit power for hammering and drilling operations independently.

Spring guide surface constrains absorber spring motion to reduce friction and vibration transmission in handheld power tools.

Replacing straight springs with a conical helical design allows extreme compression without binding, resolving axial rigidity trade-offs.

Sensors detect striker motion and absorber compression points, enabling a controller to adjust impact rates for optimal phase alignment.

Axial connecting shaft movement prevents backward travel, stops dust contamination, and extends service life.

A thermoplastic elastomer sleeve with textured cheeks engages substrates to prevent power tool falls on inclined plywood.

Detecting parts monitor mode switching members to prevent halfway engagement, protecting clutch teeth from accelerated wear and ensuring durability.

Nesting the spring within the absorber mass reduces installation space and lowers resonance frequencies.

A hydraulic hammer flow control device regulates charge distribution between chambers using a pressure-responsive valve element.

Explosive gas propels a ram through a barrel, while an integrated braking system controls forward travel to minimize collateral damage.

Segmented elastomeric members absorb vibration energy before it reaches the outer housing, reducing user discomfort without increasing manufacturing costs.

Transverse articulation and plastic sliding inserts resolve the trade-off between wide axial range and space consumption in percussive hand tools.

Integrating the striker with ventilation openings controls the air spring, reducing device weight and manufacturing costs.

A specific shank-to-head diameter ratio of 1:1 to 1.35:1 minimizes stress concentration at the junction, preventing fatigue failure in impact wrench anvils.

A drill tangential impact mechanism operates at a distinct rotational speed from the drive spindle using a planetary gear system and torque clutch.

Segmenting the bellows isolates stable end portions from a compressible middle section, reducing wear and preserving biasing force during vibration damping.

Embedded steel rods and a vibration damping sleeve reinforce the handle, preventing breakage from misstrikes.

Orienting the second frame backwards and downwards aligns gripping jaws with vibrators to transfer full hammering power.

A gas spring fastener driver uses a movable drive blade and separate return mechanisms for the drive blade and gas spring.

A movable retainer connected via an elastic element cushions striking force in the idling state, preventing unintended continuous driving of the impact bolt.

Segmenting the housing into a plastic clutch section and a conductive hammer section dissipates heat to prevent plastic deformation.

Aligned battery mounts enable sliding attachment along the longitudinal axis, preventing vibration-induced fall-off and improving ergonomic handling.

A side-mounted auxiliary handle structure attaches to a power tool housing between the grip and rear end.

A hand tool hammer mechanism uses a spring to hold the hammer during peripheral rotation while a curve guide converts rotational energy into linear kinetic motion.

An impact tool features a detachable handle assembly connected to the main body via an engaging portion with lugs and an annular body.