Nuts TRIZ Cases

Mechanical vibration drives a helical thermoplastic anchor into brittle foam or composites, boosting pullout strength while limiting cracking.

Preformed concave end surfaces and a salient rim suppress burrs in in-feed thread rolling, reducing deburring and improving screw yield.

Multiple axial compensation stages and a spring-arm fastening element handle large thickness variation while maintaining secure clamping.

Integrated insert application lets a laser tube-cutting machine form housings and place threaded inserts inline, cutting production time.

A hollow pin with a collar and spring-biased wedging improves lateral guidance and secure locking for rods of different diameters.

A resilient lip insert creates a rotational seat for a strut channel nut, enabling easier installation, self-alignment, and secure locking.

Linked thermoplastic protrusions resist collapse during vibration bonding, enabling firm anchoring in lightweight foamed substrates.

A nested stud-and-tool setup simplifies blind fastener installation through a wall aperture while tightening the outer nut to compress a spiral washer.

A U-shaped metal insert lets a plastic fastener mount onto a rod in tight spaces, speeding assembly while resisting heat and vibration.

Controlled axial, radial, and rotational clearance keeps a captive nut secure while easing fastener alignment and preventing disassembly.

Hydraulic cylinders open a gap between the headnut and burn ring, easing mantle replacement while protecting the headnut and mainshaft.

A plastic plate and U-shaped metal insert enable perpendicular rod assembly, speeding vehicle fastening while maintaining vibration-resistant attachment.

A conical through-hole screw creates radial expansion inside bicycle pipes to secure components while preserving water and dust seals.

Dual motors and shaft-position feedback separate rotation from translation to set blind rivet nuts with consistent plastic deformation.

A porous lattice insert lets potting compound flow through and interlock, boosting bond strength so sandwich panels can carry heavier attached objects.

A spring-biased split plunger shifts from open to closed thread profiles to secure threaded rods of different diameters with one anchor.

Distinct CIE Lab color coatings help inspectors quickly verify aircraft fastener types, reducing misapplication risk and inspection time.

A grooved coupling with a radial cutout and locking element speeds aircraft rod assembly while compensating for fuselage tolerances.

Tilting locking members and a ball-bearing support let a lifting lug bolt rotate for alignment, then lock securely without tools or unscrewing.

Alternating curved driven walls and straight guiding walls reduce nut wear and wrench slippage, maintaining torque transfer even on rusted fasteners.

An adhesive spark containment cap with a sacrificial drill-through section enables one-sided fastener assembly while maintaining lightning spark containment.

Rounded driven and guiding wall profiles increase wrench contact area to reduce wear, slippage, and torque loss on rusted nuts.

Angled reaction walls hold and stop nut rotation, enabling bolt tightening in confined spaces without tool access to the nut.

A shape-memory attachment cap clamps onto a fastener stack to suppress ignition from electrical discharge without stack changes or adhesive bonds.

A spring-cage lever lets cage nuts compress and clamp into frame apertures without tools, cutting rack assembly and relocation time.

A bonded oversizing layer lets a standard fastener fit enlarged close-tolerance holes, avoiding redrilling and preserving load capacity.

An angled sleeve channel centers the screw to improve force transfer, reduce vibration, and raise pull-out strength across wall materials.

A threaded element and keyed bushing lock the bearing ring against unscrewing, protecting threads and preserving rotor pitch control preload.

Chevron grooves and an asymmetric insert shape improve pullout and rotation resistance while enabling lower-cost cold-formed steel manufacture.

Non-aligned flange notches form a curved seat that bends the strut lip for strong shear resistance without added lip toothing.

Angled locking members and a bolt keep wing shrouds tight on cable shovel buckets as wear develops, reducing vibration and loosening.

A diffusion-inhibiting layer keeps the flange weldable during case-hardening while preserving a hardened ball screw nut raceway.

Embossed spacers and sharp burrs cut cage nut paint adhesion after dip coating, making manual and automated screwing more reliable.

An asymmetric internal thread creates continuous line contact in threaded rebar couplers, reducing slippage without epoxy or lock nuts.

Connection strips and limiting blocks let one fastener fit different handlebar diameters tightly, reducing rotation during riding.

A retained nut with limited lateral movement accommodates wing skin hole misalignment and speeds bolt assembly without two-sided access.

Resistance heating and swaging secure a fastening nut to aluminum panels without cracking, while improving attachment firmness and workability.

Spring plungers and detent recesses lock an axle nut on a spindle to prevent bearing loosening while remaining serviceable.

A layered green-fastener build strengthens CMC fasteners against delamination and extreme hypersonic temperatures for secure CMC attachment.

A spring-loaded rod and sleeve connector secures laminates firmly between vertical plates while keeping installation convenient and hidden.

Inclined contact surfaces, radial fixing pieces, and elastic preload lock rebars against torsion while improving concrete bonding and durability.

A two-part adjustment nut encloses the height screw to speed robotic mower assembly while maintaining reliable thread engagement.

A threaded plug with a breakaway tab keeps debris out of embedded couplers while avoiding cap damage, displacement, and thread repairs.

A protrusion, flange, and punching tool secure both sides of a tubular member, improving twist resistance, tolerance fit, and sealing.

A mobile and fixed nut restrainer enables one-sided high-strength bolting while preserving load capacity and installation tolerances.

A single torque-generating nut in an orthogonal housing cuts part count, prevents drift, and enables fine feed screw positioning.

Pre-arranged nuts on a rod connector shift fastening work to the workshop, cutting on-site assembly time and avoiding welding.

Axial tipward play lets rear thread sections engage later, spreading concrete screw load more evenly and reducing premature cone failure.

A coaxial inner and outer pin punch pierces the substrate and clinches the fastener in one position, cutting misalignment, space, and cycle time.

Tapered protrusion and recess surfaces create eccentric locking while a distal-end gap reduces nut tilt and stress concentration.