Shackles TRIZ Cases

A non-linear entry channel and locking keyhole secure a clevis pin without tools while preventing unintentional removal.

Internal locking and twin pins secure multiple fall arrest devices while preserving pivot freedom and easy harness attachment.

A composite collector chain with stepped pins and stress sensing cuts corrosion, debris buildup, power use, and maintenance in settling basins.

A bolt-locked mooring link enables subsea coupling and release while fitting chain wheel pockets and resisting unintentional opening.

Interrupted reinforcing ribs let rope sling shackle arc flanks deform under oblique loads, reducing added stress while preserving stiffness.

A grooved locking pin and key-operated lock replace welded retainers, speeding dragline rigging assembly while reducing damage and downtime.

A spring-tuned actuating line and snap shackle deliver repeatable preset load release without frangible parts, extra weight, or replacement.

Embedded magnets replace threads to create quick, fluid-tight hose connections with less hand strength and less jamming from debris or temperature.

Unequal rope-branch lengths cut link-structure load and keep connectors in place for easier, lighter rope connections.

Axial push engagement lets a shackle pin lock quickly without manual threading, improving secure assembly in hazardous rigging conditions.

Repulsive magnetic poles and a post-guiding groove lock heavy-object fasteners in place while still allowing easy assembly and disassembly.

A shackle-mounted blocker prevents karabiners from clipping to the wrong opening, forcing attachment to the lifeline end connector.

Synthetic fiber rope loops replace rigid metal bows to cut shackle weight while preserving load strength, flexibility, and corrosion resistance.

A dual-release mooring mechanism combines acoustic hydraulic actuation, mechanical backup disconnect, and sensor telemetry for subsea reliability.

A spring-loaded safety pin adds rotation to axial motion, making chain link insertion and removal easier while maintaining secure locking.

Pivoting levers form separate connection and removal spaces, letting one tool join or separate roller chain master links without extra pliers.

A bolt-secured chain sling connector forms loops without hook-induced bending stress, preserving load capacity and preventing loosening.

A segmented long-hole closing plate secures the chain pin under vibration and high load while preserving narrow bicycle chain geometry.

A rotating link with a spring-loaded pin enables secure, tool-free band length adjustment without the skilled handling required by removable links.

Geometric interference and elastic chain loops create a self-locking chain connector that cuts parts, cost, and loosening risk.

Raised nut bearing faces and recessed non-circular bolt head seats let a heavy-duty shackle be bolted and locked securely from either side.

A shaped retaining section and stop secure the chain end link in one position while allowing pivoting to follow load changes without jamming.

A linear actuator in the grapple inspection cavity remotely holds log wrapper chain links, reducing driver strain and wrapper damage.

A laterally offset coupling and shortening slot lets sling-chain hooks align with tensile direction and stay accessible in two-strand hangers.

A compressible retainer and grooved pin enable quick locking and release of dragline rigging connections, cutting maintenance downtime.

A cap-and-pin shackle clamp keeps the nut secured without cotter pins or pliers, simplifying engagement and improving rigging safety.

A movable guide and integrated lock tension a mooring line while limiting out-of-plane bending, wear, and apparatus weight.

A chamfered outer link plate improves sprocket tooth engagement and shifting while preserving strength in narrower bicycle chains.

A spring-loaded latch and external hand switch enable fast release, secure locking, and even bolt wear without extra safety pins.

A multi-wound rope loop and removable pin create a compact coupling that reduces handling demands and supports progressive failure.

Reinforced end links with increased bar diameter reduce bending stresses, extending anchor chain lifespan against fatigue.

A bicycle chain connecting link uses slidable protrusions to guide a link pin through an elongated opening.

Segmented locking pins prevent loss by engaging keyways, resolving retention reliability versus operational complexity.

A swivel attachment device uses a removable spacer and offset fixing screw to close the lateral access space between rotating rings.

Porous absorbent members confine solid lubricant between chain pins and bushings, preventing leakage caused by rubber O-ring wear.

Sequential orbital swaging forms durable pin connections while reducing peak press force requirements and extending tool lifespan.

A metal housing insert prevents ceramic damage during spacer assembly by acting as a protective intermediary between the fastener and brittle link material.

A lift bushing with a shoulder and fastening mechanism secures within pipe flange holes for heavy marine risers.

An expandable retaining ring engages a pin collar slot to secure the fastener against loosening or breakage.

Integrated pressure distributor routes seawater to cylinder arrangement, eliminating oil leakage risks while maintaining 800-tonne load capacity.

Axial deformation of an elastic ring creates radial clamping force on a watch bracelet screw, preventing untimely unscrewing during wear.

Segmented outer link plates with ribs reduce inner link gaps below 2.3 mm, preventing pin disengagement during gear shifts.

Link members with integrated cavities retain seamless rings that rotate freely, eliminating welding protrusions and localized wear.

Self-aligning features resolve remote operation difficulties by guiding parts together before locking pin engagement.

A segmented connecting element uses a pivoting strut to swivel chain links into place.