Rivets TRIZ Cases

Internal and external notches plus a flared hollow section let a sheet metal fastener resist torque while maintaining a fluid-tight joint.

Pressure-triggered collar presentation lets a swaging tool feed and place lockbolt collars in sequence with one-handed operation.

A pivoting lever and expandable grommet replace multi-plate, tool-based fastening to cut weight and simplify aircraft wall maintenance.

A finger-based offset collar delivery mechanism places collars flush before lockbolt insertion, improving swage alignment in low-clearance areas.

A shallow axial recess and flat rivet foot improve piercing and symmetrical expansion in high-strength steel joints while keeping setting forces low.

An annular groove preloads and holds the sealing ring on a blind rivet insert, preventing detachment during lubricated or high-friction installation.

A band-annealed sleeve forms a controlled bulb to raise clamp-up force, protect the workpiece, and support automated drill-out.

An intermediate retaining member lets object material flow into a holding section, giving stable fastening with quick repeated release.

An integrated reshaping element deforms the rivet in place, enabling reliable fastening of thin workpieces without a separate die.

A locking tab and expanding sleeve prevent accidental rotation while allowing simple tool-free assembly and controlled disassembly.

Reversible socket rotation installs a frangible fastener, then drives a threaded pin to eject the broken section for simpler disposal.

Internal reagents expand a hollow polymer screw after insertion, creating strong single-step anchoring without a separate fixture.

Hydraulic pressure drop sensing lets swage tools detect pintail snap, stop early, and reduce manual fastener inspection time.

Precise Si-Cu-Mn-Mg-Zn alloy ranges replace vanadium to give aluminum fasteners high strength, better toughness, and crack resistance.

A bonded pin with non-helical grooves and a collar enables one-point fastening with fewer holes, anti-rotation, and vibration resistance.

A chamfered foot end and tuned diameter ratio let blind rivet nuts self-align with hole offsets, enabling faster automated setting.

Non-contact induction heating forms resin fasteners faster, while load-curve monitoring flags fastening defects without long cooling delays.

A tuned shank diameter-to-bore depth ratio lowers insertion force and die volume while improving joins in brittle three-layer stacks.

A sleeve shifts shear load away from flexible collet legs, while a rotating stud preserves clamping force and supports easier removal.

A rim-loaded rivet head flattens against a thin brake pot to secure the friction ring without recesses that weaken lightweight brake discs.

A polygonal shank and 23-degree tapered foot let blind rivet nuts self-align during robotic setting and prevent rotation under axis offset.

Opposite-threaded inner and outer bolts lock through a thickened base layer to resist vibration-driven loosening in dynamic assemblies.

Soft interlocking areas are formed before aging heat treatment, enabling easier assembly and strong high-temperature joints.

A segmented expanding rivet enables one-sided assembly, controlled preload, and play-free joining despite thickness variation and stress.

A protective sleeve shifts shear load off the collet body, while a reduced-diameter stud section prevents binding during clamping and removal.

A containment cavity in the locking member reduces lightning-strike pressure and hot particle ejection while protecting composite joints.

A compressible cap deposits lubricant along multi-layer perforation walls to cut interference fastener insertion force and prevent breakage.

Undercut head and ring-space geometry lock sheet material in place, improving pull-out, press-out, torque, and fatigue resistance.

An axial circular recess at the head-shank transition lowers setting force, limits shank bending, and stabilizes joints in high-tensile steel.

A two-diameter pin shank creates radial clearance for bushing swelling, easing blind rivet tightening while preserving shear strength.

A locking collar and radial contact element grip the core bolt for reliable blind fastener installation at varying angles with less tooling complexity.

Cold-formed collars in thin sandwich vehicle panels let blind rivets hold components securely without added reinforcement plates.

Mechanical vibration drives a connector through a workpiece, melts local thermoplastic flow, and re-solidifies a strong bond without galvanic corrosion.

A rotatable locking element gives this ball-detent pin tool-free release and clear visual lock status for fast flight data recorder detachment.

Foldable engaging and reinforcing legs let this rivet fastener clamp varied hole sizes, resist off-center loads, and remove cleanly.

Automated lock collar feeding uses a guide block, feed tunnel, and gripping assembly to support precise swaging in confined spaces.

Inclined engagement surfaces and elastic grommet deformation cut return force while preserving fastening strength and removal resistance.

Fine outer grooving blocks nut rotation in blind fastening while avoiding composite delamination and metal scratching during wet installation.

Preformed clearance holes let self-piercing rivets join hard or mixed-material stacks without rivet fracture, substrate damage, or galvanic contact.

A ring cutting edge and controlled shank diameter ratio limit expansion while preserving undercut strength in high-strength sheet joints.

A fracturing stem head lets this blind tacking fastener align sheets and provide strong takeup while reducing chips and workpiece damage during removal.

A two-part anti-rotation collet and cylinder structure prevents spin during installation while allowing axial travel across varying workpiece thicknesses.

A hard surface and ductile core let this joining element bolt steel above 800 MPa without slug separation or element failure.

Mechanical vibration liquefies thermoplastic connectors so they penetrate low-density core layers and re-solidify into a strong, reliable anchor.

A hardened edge layer with a softer core lets joining elements penetrate ultra-high-strength steel without slug separation or brittle failure.

A threaded pin and retaining socket fracture a frangible fastener, then eject the severed section for safer, lower-cost installation.

Tabs and notches around aligned rivet openings create rotational interlock, boosting torque transfer and holding capacity.

A die head recess and elastic sleeve retain and center a washer, improving stress distribution when joining dissimilar materials.

Sectional collet fingers provide anti-rotation and translation arrest without hole-matched features, enabling longer extension and secure fastening.

A tuned shank diameter-to-bore depth ratio improves joining quality in brittle materials and three-component stacks while lowering insertion force.