Cylinder Locks TRIZ Cases

A movable sleeve shifts a locking surface to enable dual key access, resolving compatibility issues with existing single-key wafer tumbler systems.

Integrating plate tumblers with a locking element engaging specific recesses creates multiple resistance changes that obscure the unlocking position.

A locking cylinder aligns fixing recesses to engage a core pin before the locking pin moves inward.

Guiding structures at axial driver pin planes route closing plates past a blocking bar, preventing jamming while maintaining strong security engagement.

A lock re-pinning fixture employs a biasing follower bar to prevent pin ejection and simplify cylinder reassembly without specialized tools.

Mushroom-shaped driver pins with contoured annular bodies prevent pin alignment during picking or bumping attempts.

Segmented tumbler pins trap the bush in the shear line to resist percussive break-in attacks on lock cylinders.

A rekeyable lock cylinder uses a plug assembly with a carrier and locking bar to align pins for new key bitting.

Curved rack engagement surfaces increase bitting positions while maintaining component strength against size reduction trade-offs.

A segmented locking plug constrains tumbler movement to prevent lock picking.

A hybrid lock cylinder uses sliding wafers and rotatable discs actuated by a single key to secure the mechanism.

A lock re-pinning assembly uses a follower bar to maintain contact with the plug during pin replacement.

A rekeyable lock cylinder uses a multi-feature rack to engage key followers at distinct positions.

A pin verification mechanism relocates detection to a concealed slide bar, blocking keyway access and preventing pick attacks.

Gear timing controls inner and outer cylinder rotation to prevent probing manipulation while simplifying construction complexity.

Linear key movement actuates the locking member, eliminating rotational complexity while maintaining secure engagement.

A cylinder lock key uses a movable element carrying bi-dimensional shape ciphers to verify alignment against the lock mechanism.

A bolt lock uses an angled biasing spring to drive the latch along the introduction direction while engaging blocking sections.

A coding tumbler uses a spherical contact element to provide rolling engagement with the key, replacing sliding friction.

Recess holding sections secure movable elements in a lock key, eliminating the shaft and reducing manufacturing complexity.

A cylinder lock grants locking authorizations mechanically via a movable blocking element, eliminating electronic complexity while maintaining security.

Segmented lock piece bases with compression springs prevent random rotation and dislocation of key sockets during vibration.

A lock core uses a push plate and brake bolt to ensure complete key insertion before rotation.

A shaped driver pin with a lip structure prevents unauthorized lock opening.

Rotating locking bar interfaces aligns unlocking cavities with the locking bar, eliminating lateral tooth engagement and complex spring mechanisms.

A lock core structure uses a push plate and brake bolt plate to prevent rotation unless the key is fully inserted.

Sidebar prevents rotor rotation until tumblers align, resolving size constraints.

A programmable lock cylinder assembly uses a re-combinating member to engage pin components for secure key configuration changes.

Segmented rotating pins align with precise key cuts to resist picking and bump attacks, preventing unauthorized access.

Segmented stator grooves guide separate change and stop bars, enabling a 90° key rotation without mechanical interference or operational noise.

Worm driven core pins seat locking elements in labyrinth grooves to block cylinder rotation.

A profile lock cylinder uses a linear toothed key element to engage the locking body.

Rotatable key followers disengage from racks to simplify rekeying, resolving the trade-off between ease of operation and device complexity.

A locking cylinder uses unequal spacing between blocking elements to reduce cumulative spring forces during key insertion.

A profiled cylinder uses a sleeve-shaped ring to couple or separate from the core based on pin tumbler depth.

A programmable lock cylinder assembly uses a re-combinating member to reconfigure pin arrangements without disassembly.

Longitudinal pin guides half-spangles through rotor channels, resolving assembly complexity while enhancing burglary resistance.

Movable elements in a lock plug align with the shear line only upon rotation, preventing forged keys from bypassing security checks.

A drawer lock device features a locking cylinder with an occluded keyway slot that exposes the keyway only when the drawer extends.

Segmented variable profile elements replace machining to accommodate key variants without compromising structural reliability.

A key shaft incorporates a pivoting element that transfers force between rotor pins to enhance locking mechanism security.

Adjustable lock cylinder uses wedge elements and rack assemblies to accommodate different keys without external tools.

Dual independent key followers multiply possible cut combinations without enlarging the cylinder body, resolving adaptability versus complexity constraints.

A lock slider moves between positions to isolate pins from cylinder torque while allowing pin displacement.

A rekeyable lock cylinder uses rack components and an adjusting block to change keys without replacing the entire unit.

Independent rack decoupling allows user and master keys to rekey separately, resolving the trade-off between ease of operation and device complexity.

A lock cylinder uses a monolithic dividable pin to enable recoding through controlled shearing.

Segmented pins with ledges prevent plug rotation until correct key alignment applies rearward force, blocking picking attacks.