Load Modified Fasteners TRIZ Cases

A bolt head recess with a central projection directs supersonic waves to the shaft axis, resolving probe size limitations and manufacturing complexity.

Threaded fastener tensioning device with retention component reduces service time and labor for turbomachine casing maintenance.

Adjust welding voltage and current to set specific limit torques, eliminating the need for multiple component geometries.

A piezoelectric washer generates electrical power from mechanical force to measure fastener tension.

A shear member apparatus retains post-shear segments using threaded interfaces, retaining pins, or split ring structures.

Asymmetric fastener shanks alter bending stiffness to minimize vibration damage in piston engines.

A cap member with a breaking groove fractures at fixed torque to verify anchor bolt installation.

Transducers replace torque wrenches to measure fastener preload directly, eliminating inaccurate indirect methods and reducing inspection labor.

A lock system uses a hardness gradient to deform the force receiving member under load.

A PCB retainer clutch assembly uses a spring-loaded mechanism to control torque, preventing flange deformation while allowing standard screw sourcing.

Ratchet mechanism in shaft delivers installation confirmation without tools, preventing torque deviations from worn components.

Elastic deformation of the polymer screw element prevents overtightening, enabling safe model kit assembly by younger users.

A cylindrical plumbing connector uses segmented flanges with reduced cross-sectional areas to break away under excessive torque.

A hybrid fastener bolt uses a plastic torque head to apply precise tightening force without damaging joined parts.

A screw with a ductile expansion area transforms brittle timber connections into ductile joints.

Polygonal stud welding prevents burn-through on thin sheets and allows early defect detection via torque testing.

A spring-loaded expansion bolt retracts its anchor section via stored energy while an indicator verifies setpoint tension, simplifying the setting process.

An annular recess on the shank permits free rotation after assembly, preventing excessive torque damage to soft plastic parts during vibration.

An integrated fastening device combines sensing coils and a controller to detect stress or temperature, reducing maintenance complexity.

Optimized diameter ratios in pretensioning screws resolve material usage versus force transmission trade-offs, enabling smaller component dimensions.

Hemispherical wedges and a deformable jacket enable lateral float in injection mold friction pullers, accommodating thermal expansion and build tolerances.

A nut with a thinner pressing portion deforms to maintain tight engagement between the nut and screwing piece.

Wireless sensors measure fastener preload to infer structural health, replacing periodic manual inspections with continuous monitoring.

A fastener assembly uses a polymeric sleeve and selective coating to isolate dissimilar metals.

External gauges measure bolt stretch to calculate tension, avoiding sensor-induced strength loss in anchor bolts.

A fastening system for underground vaults uses a composite fiber reinforced polymer nut designed to fail in shear before the bolt.

A fastening device uses an elastomeric bellow to cover a horizontal portion, changing its color or texture when correct torque is applied.

A metallic tolerance absorber sleeve uses a weakening zone to plastically deform into radial projections for secure component fastening.

A quick fastener system uses a hollow cylindrical thread element to provide constructive rotation protection between components.

An asymmetric screw design prevents simultaneous tool engagement on both heads, reducing manufacturing waste and costs while ensuring consistent torque control.

Segmented connector segments create V-shaped breakpoints that allow specific breakaway points under impact, enabling repair by replacing only the central rod.

A mechanically locked blind bolt fastener maintains high residual clamp loads through integrated core bolt protrusions engaging sleeve grooves.

A shear-off screw uses a hollow threaded sleeve and pressure piece to fasten conductors securely.

A locking nut uses a torque slip mechanism to limit tightening force and prevent over-tightening damage.

A hydraulic bolt tensioner detects yield points via pressure gradient analysis to prevent bolt tearing.

Segmentation resolves the trade-off between deep reach and manual handling by allowing tool-free removal of the grip after insertion.

A unibody hydraulic nut design with multiple pistons and locking collars enables simultaneous stud tensioning in confined spaces.

Nested inner and outer bolts pierce aluminum oxide layers while shear elements manage torque to prevent wire strand separation.

Segmented shear bolt with obstruction piece prevents premature sleeve application, ensuring proper torque without specialized tools.

A self-drilling drywall anchor integrates a torque clutch into its screw drive to limit rotational force.

A threaded hider cap assembly uses a tab engaging a base notch to prevent overtightening and strip thread damage during manual installation.

Segmented pin and bolt interface absorbs distinct loads to enable assembly of components with different thermal expansion coefficients.

Slope guide slots convert linear motion into radial expansion, eliminating motor-driven complexity while maintaining precise tension control.

An RFID transponder features a predetermined breaking point that fractures upon relative movement of vehicle components to signal functional loss.

Offset protuberances and indentations strengthen the DTI washer web, preventing unpredictable deformation in enlarged bolt holes.

An asymmetric cylindrical plug reduces sleeve friction, lowering setting force while a contrasting coating provides visual engagement confirmation.

A gate locking device uses a sheared bridging portion to remove the fixating member head, minimizing gripping surfaces for unauthorized access.

Light curable adhesives accelerate curing for visual tension indicators, resolving the trade-off between bond reliability and manufacturing speed.

A direct tension indicating washer uses U-shaped horseshoe protuberances to encapsulate elastomeric material for visual bolt tension confirmation.