Keys TRIZ Cases

Segmenting the locking system into an external combination lock and an internal shackle padlock resolves the security vulnerability of single-lock theft.

Radial side locking tumblers engage a fixed sleeve portion, resolving space conflicts for high-security mechanisms in compact lock cores.

Segmented latch members engage ledges to resist separation, resolving the trade-off between security and operational complexity in bait stations.

Segmented helical keyways avoid central through holes, boosting core strength and complicating lock picking by requiring precise key geometry.

Cold-formed torsion sections on key shanks provide complex spatial coding that increases security against manipulation while maintaining manufacturability.

Segmented rotation limiter eliminates non-rotatable parts to reduce device complexity and improve manufacturing ease while maintaining functional reliability.

Segmenting the rotor into rotating elements and nesting them within cavities increases security against tampering while maintaining manufacturing efficiency.

Longitudinally guided punching tools form profile grooves in key blanks while holding surfaces clamp the material to prevent deformation.

A key tip with a flat orthogonal end face maintains consistent surface contact with the coupling element.

Parabolic variation ribs reduce flank steepness to prevent bending during key insertion while maintaining high coding density.

Key blank with transverse notches forms drive slopes for disc cylinder tumblers while preventing sharp edges that cause discomfort.

A pivotable actuating device within a key shaft uses angled radial elements to increase locking combination variability.

Sidebar blocking member with selective notch aligns with key unblocking member to enable lock core rotation, increasing resistance to unauthorized unlocking.

Surface codes on the key tip end face prevent unauthorized copying via high-resolution cameras, enhancing security.

A flat key fitting uses a sliding drawer and box to secure the key head while allowing bit extraction.

A pivoting key blade folds alongside its shank to fit inside an electronic key fob.

A rotary lock key uses a tapered shaft and movable control element to enhance query security.

A transparent window on the container body enables visual audit of arranged locks without opening the lid, reducing inspection time while maintaining security.

A lock mechanism uses a single row of short and long pins to read upper and lower key blade patterns.

A mechanical lock uses a ratchet sleeve mechanism to align radial notches via multi-press buttons.

Reversed spring biasing on paired locking pins increases combination counts while simplifying manufacturing by standardizing pin lengths.

Key blade slider actuates internal mechanism to resolve sidebar alignment complexity.

Modular wafer elements in a self-learning lock cylinder enable rekeying by non-experts while a test housing verifies alignment before installation.

An engagement release mechanism disconnects a drive member from a lock release member to allow manual ratchet re-engagement.

A motor vehicle key panel serves as a plain bearing for the safety device.

A lock decoding device uses a rotating feeler tip rod to detect wafer positions through an indicator dial.

Non-MACS key cuts exceed standard depth limits to position telescoping pins correctly at the shear line, resolving MACS restrictions.

Segmenting the key profile groove creates a deep internal contour that resolves the contradiction between manufacturing precision and complex locking secrets.

Opposite shaft surfaces hold coaxial resilient elements that engage multiple pin mechanisms to increase lock security.

A locking cylinder rocker scans ribbed key profiles to verify correct alignment and prevent unauthorized operation.

A lock cylinder coding element engages the keyway to limit insertion depth and encode permissible profiles.

Sheet metal punching creates a U-shaped key with parallel legs, eliminating complex casting processes to simplify manufacturing.

A key bit incorporates shaped pins into control cut-outs to expand coding possibilities.

A retractable key holder uses a non-coaxial release button to enable independent positioning of the actuator relative to the hinge axis.

A flat key lock assembly uses a rotatable blocking member to constrain a ball within the rotor.

Variable inclination angles on segmented key flanks balance high locking secret counts against insertion forces, reducing wear and improving user convenience.

A lock rotor slot lever mechanism accommodates encoding pins within confined spaces.

Variable spacing between blocking elements and recesses moves components sequentially, reducing extraction force caused by simultaneous static friction.

A retractable motor vehicle key uses a tapered insert sector to minimize lateral clearance during deployment.

Loosely fitting keys with long bows leverage gravity to drop from horizontal freezer locks, preventing child entrapment.

A profiled key blade with a local recess accommodates a movable blocking element, preventing unauthorized access by blocking incorrectly cut keys.

Bidirectional key insertion resolves the contradiction between exclusive encoding security and versatile cylinder compatibility.

Conventional keys convert to uniform heads via welding, resolving bulky holder trade-offs.

Asymmetric stepped walls on a reversible flat key increase encryption combinations without adding pins, preventing easy duplication of traditional key blanks.

Inclined milling cutter profiles reversible flat key broad sides in one pass, eliminating multiple operations and enabling complex undercut groove walls.

Dual-sided serrations on a thin key blade resolve the contradiction between security and thickness by summing notch depths to the blade width.

A lock cylinder plug resists unauthorized quick movements by engaging a semispherical end portion within a non-axial groove on inner pins.

A lock key uses a movable element in a reduced thickness zone to increase operational stroke.

Inverted tumbler stops conceal unlocking positions, preventing unauthorized key duplication.