Chain Fastenings TRIZ Cases

Multiple aperture pairs let the tailgate chain linkage length be tuned without changing links, improving opening speed consistency and fit.

Multiple aperture pairs let the tailgate chain linkage compensate for chain length variation and maintain consistent opening speed.

A foldable ear connector shifts from open insertion to crimped overlap, permanently securing a ball chain to prevent unintended detachment.

An upper connection point above the link center improves underwater chain release control while reducing sling wear during disconnection.

A wedge block and outer blocks lock adjacent chain links to limit out-of-plane bending, reduce harmful movement, and extend chain life.

A fixed upper lifting point lets an ROV rotate the detachable mooring link for controlled underwater chain release with lower sling wear.

Comb-like interengagement with stub-and-socket locking shortens chain block-lock distance while preserving reliable tensile force transfer.

A J-shaped connector bow uses flattened and angled cross-section transitions to improve fatigue strength, load capacity, and material use.

A spring-ring leg bends on wrong insertion, making the chain connector pin unusable and clearly indicating correct installation.

A two-part chain link replaces threaded screws with an engaged closing element to keep cross-section constant and improve tensile reliability.

A spring-ring leg bends on incorrect insertion, making the chain lock safety bolt unusable and clearly indicating proper assembly.

Comb-like block lock halves and angled pin engagement shorten latching travel while preserving secure tensile force transmission.

A double-T leg structure with inclined support flanges cuts chain link weight while preserving breaking strength, fatigue life, and stiffness.

Segmented inner curves in a multi-strand hanger ring make sling angle ranges easier to read and load capacity easier to assess.

Retractable crowned bolts and a central expanding element secure the joining shackle while allowing non-destructive removal in corrosive seawater.

Rounded tooth flanks and a cavity above the toothing cut notch stress in kenter shackles while preserving anchor chain compatibility.

A rotating eyelet, stud, nut, and pivot pin arrangement simplifies installation while improving load transfer and structural integrity.

Rounded tooth flanks and grooves cut notch stress in Kenter shackles, improving fatigue strength while preserving anchor chain compatibility.

A coupling link uses a wedge-based locking mechanism to join components without hammer impact.

Segmented oblong link resolves the strength versus handling trade-off in heavy marine anchor chains.

A chain link assembly uses a press-fit design to join separate link members without welding.

Variable profile cross sections in the longitudinal legs of a chain joint increase bending resistance and tensile strength without altering outer dimensions.

Rotary lock closure assemblies secure tyre chain links without impact, reducing hammering force and corrosion damage.

A brise ring joining element uses overlapping oval half-rings connected by a flexible portion to join chain ends.

Integrating the safety bolt as a retainer pin reduces the minimum shortening value by repositioning the retention point above the shortening member.

Induction hardening the high wear region of an integrated rivet shoulder improves durability and reduces replacement frequency.

External clamping mechanism fixes flyer chain ends on plate-link contours, eliminating internal bolt alignment and reducing installation complexity.

Segmented connecting links with varying pitches bridge messenger and anchor chains, enabling smooth transition through a single chain wheel.

A chain connecting link features an undercut pocket to distribute tensile forces across a surface area rather than concentrating stress at a corner.

Expandable collet elements eliminate loose cotter pins and threaded nuts, preventing accidental pin removal in hand tools.