Portable Percussive Tools TRIZ Cases

Nesting the mode change dial within the grip protects it from collision damage during drops while maintaining operational accessibility.

Segmented motor and gear housings reduce vibration transmission to improve operability.

Asymmetric beat piece surfaces increase frictional contact during ram rebound to secure retention within the hammer drill mechanism.

A single adjusting element axially fixes or releases the transmission element and bearing to enable mode switching.

A hand tool leverages a rim flange fulcrum to lift tyre beads without wedging between components.

A pneumatic hammer drill adjusts air spring stiffness via a spool valve to improve tool guidance, reducing excessive loading on the percussion mechanism.

A sliding block with internal teeth engages a retaining ring to lock the drill sleeve non-rotatably in chisel mode.

A vibratory installation system positions acetabular cups using controlled oscillation energy delivered by an integrated oscillation engine.

A battery pack-powered screed controller regulates motor speed and current using sensor feedback to maintain optimal operating conditions.

A pivoting catch mechanism locks a monostable operating button in a pressed position via a slotted link and joint system.

Sliding and pivoting mounts with springs and bellows reduce vibration transfer to the operator's hand.

A compressible O-ring around a rotary hammer anvil generates friction to decelerate the component during idle transitions.

A control circuit limits current supplied to an electric motor rigidly coupled to an impact mechanism.

Dual lock members secure the operation member to eliminate continuous user effort during chipping tasks.

Control unit monitors hammer mechanism load to automatically adjust drive speed, eliminating manual intervention and maintaining work efficiency.

Segmented control channels and piston flow spaces enable complete hydraulic fluid circulation, preventing cavitation damage from trapped air bubbles.

Nested spring elements isolate vibrations in a handle device, resolving the trade-off between isolation performance and structural complexity.

A variable stroke control system adjusts piston movement via inlet and outlet grooves to optimize hammer operation.

Redesigned flexible coupling limits pivot action to absorb vibrations, preventing air supply disruptions from excessive bending.

A pivoted hammer-head uses a friction-based energy-absorbing mechanism to dissipate impact shock before it reaches the handle.

A dual crank mechanism drives a counterweight to offset hammering vibrations within an electric tool handle assembly.

Positioning a counterweight above the swinging ring eliminates horizontal couples and sliding resistance, reducing axial vibration and energy loss.

An impact tool design reduces axial length below 128 mm by omitting the pin retaining washer and optimizing component placement.

A grip housing connects via an elastic member and rotary joint to absorb axial and perpendicular impact forces.

Segmented radial clips on a slidable tube accommodate varying bit diameters, resolving single-size storage limits.