Building Locks TRIZ Cases

See how modular cabinet segmentation with pass-through units, pull-out bins, and locking drawer

See how a dual-lock playard lifting device uses segmented locking and preliminary action to pre

A modular latch with a preassembled pivoting mechanism and integrated lock cuts drawer assembly effort while preventing handle-pull opening.

See how asymmetric elastic pieces with different bending stiffness enable adjustable resistance

See how a resilient prong assembly with enlarged engaging surfaces and automatic hook engagemen

See how wedge-shaped hook fastening between door frames eliminates sealing members, reduces scr

See how a pivoting handle translates pulling motion into simultaneous lever actuation on both d

See how hook fastening relocates the handle to the inner frame's rear surface, enabling secure

See how aligning the ejection force line through the rotation axis creates stable dead-center l

See how a bottom-hinged door with biometric locking and door-mounted firearm holders reduces ac

See how a push-out element rotates in one direction for both ejection and tensioning, eliminati

See how a rotatable handle integrates the locking mechanism, allowing one-hand lifting to unloc

A QR or PIN-controlled electromechanical lock turns a take-out bag into an access-controlled container that deters tampering in transit.

See how a headboard-integrated cabinet uses electronic lift and wireless control to resolve the

See how segmented lock bars with elastic elements and inclined slopes prevent multiple drawers

See how a waterproof, fireproof container integrates beacon tracking and multi-layer access con

See how a resilient detent in a clamshell grill latch accommodates platen misalignment, reducin

See how a rotatable ejection element uses the same rotation direction for both ejection and spr

See how a cam-pivot actuating mechanism with curved contact surfaces reduces manual dispenser o

See how a pivot-element blocking latch merges retraction and drawer-blocking functions to preve

See how a pivoting locking member converts linear activator motion into reliable unlocking of a

See how a slider-based recessed handle maintains surface linearity without increasing door pane

A fusible material releases a spring-loaded bolt above 170°F, keeping a burning dryer closed to limit airflow, fire spread, and injury.

See how a movable locking member abutting a blocking structure prevents unintended rail retract

See how a cable tensioning system with engagement devices prevents multiple drawers from slidin

See how dual-side receiving sections surround the locking element to maintain consistent latchi

See how electronically controlled latch mechanisms and direct drawer mounting eliminate carrier

Preloaded springs assist heavy furniture parts, while separate guide areas adjust engagement position and opening force.

See how detachable fittings with spring-loaded blocking parts prevent furniture drawers from op

See how a spring element with integrated operating levers enables one-handed drawer inclination

See how a pivoting plate with tabs and grooves prevents accidental drawer ejection while simpli

See how a hinged security box with integral hasp and RFID lock self-fastens to chair frames or

See how a pivotally mounted locking element converts short linear trigger motion into reliable

See how a modular handle with lateral brackets and a revolving rocker arm adapts to various doo

See how pivoting stop tongues use elastic deformation to prevent accidental drawer removal whil

See how a dual push door-lock uses a blocking assembly and safety pin to secure the door during

See how motor-driven propellers counteract leverage effects in long-handle pruners, enabling er

See how a spring clamp attachment secures cabinet latches without drilling or adhesives, preven

See how a dead-center locking mechanism aligns the ejection force line through the rotary axis

See how interlocking first and second fittings with stopping parts block furniture movement dur

See how a modular pin-and-rocker mechanism with handle-actuated locking simplifies assembly and

See how a flexible pull cord replaces rigid transmission rods in slide rail locking, reducing o

See how a spring-loaded bolt part slides along a running track to lock furniture rails in pushe

See how a smart storage locker secures mobile devices, detects user identity, and tracks presen

See how a pivoting handle merges dual-slide unlocking into one motion, letting operators open c

See how an asymmetrically positioned cup-shaped closing element redirects laundry impact forces

See how integrated latch levers and a centralized drawer pull enable single-handed unlocking of

See how a sliding container uses support struts as lock interaction surfaces to secure drawers,

See how a touch-latch lever and locking element enable reliable, low-noise furniture opening wi

See how a one-way spring tongue or collar secures threaded plunger parts, preventing complete u

Individually controlled runners keep fitting elements in set relative positions, enabling rapid automated changeovers across assembly stations.

A compressible flared sleeve guides screws into hidden threaded mounts, improving door knob alignment and cutting installation frustration.

A diagnostic electrode simulates object presence in a shielded capacitive sensor, enabling fast functionality and integrity checks.

An asymmetric roller latch and concealed push pad linkage deliver smooth emergency egress while improving resistance to forced entry.

A conductive RFID box with shielding, gasket sealing, and dual-user access improves tag reading accuracy while securing critical inventory.

Deep chamfers and a tri-state lock let stacked storage containers self-align, lock automatically, and show lock status for easy release.

Flexible flaps and slam barriers absorb latch and door-jamb impact energy to cut closing noise and reduce strike plate wear.

An integrated latch body, button, and locking arm secure the lid while reducing parts and simplifying container assembly.

An axially adjustable cam lets one door latch fit varying door and frame offsets while maintaining secure locking and simpler assembly.

An indexed bearing block and nut let a fan cowl latch hook adjust precisely in tight space without adding drag, weight, or debris traps.

A swing latch, hooked pins, and a rotation channel align through a coded key to resist forced entry while allowing rekeying.

Electronic locks and timed digital credentials let one key safe control multiple compartments while improving user-specific access security.

A U-bracket child lock spans the door gap to secure any door edge without damage while allowing adult release from both sides.

A laterally adjustable base plate and roller correct latch misalignment, maintain weather seal compression, and lower door closing force.

A rotatable handing element with stop-defined positions lets one handle assembly fit multiple door handings while simplifying installation.

A tunnel-loop antenna with proximity-triggered dual-mode RFID reading cuts battery drain while improving sub-dermal tag detection.

A transverse drive rod lets users lock and unlock high-mounted door hinge locks from a distance with reliable bolt movement.

A nested square-shaft trigger with an axial elastic element shrinks window actuators for thin profiles while improving aesthetics and reducing wear.

A sliding or rotating lock on the cover enables smooth keyless locking and unlocking while avoiding electrical faults and lost keys.

Integrated conductor tracks in the bag wall secure small or flexible items, simplify layers, and trigger alarms on unauthorized removal.

A rotatable holder uses flexible or magnetic engagement with a door stop to keep doors open and release quickly across varied floor fits.

A removable snap-fit insert makes an open latch handle highly visible, helping ground crews spot unsecured aircraft fan cowl latches.

A locking plate, wedge, and side rod let sliding stall doors lock on closing and open safely, reducing animal escape and injury.

A removable latch keeps the panic push bar separated from its base, temporarily blocking door release during security breaches.

A prestressed spring and separate securing element reduce spring stress concentration while keeping a quarter-turn lock secure under vibration.

A removable stop plate and stop block define the hopper gate open position while reducing rack-and-pinion wear and simplifying door removal.

Dual centering bevels align sagging door leaves automatically and work for left- or right-hinged rod locks without repositioning parts.

A spring-preloaded aircraft service access lock enables tool access while minimizing panel gaps and steps to preserve aerodynamics and stealth.

A disc spring and washer return the key to its lock position, preventing sticking and improving gate latch safety and smooth operation.

Interlocking teeth enable repeatable vertical strike plate adjustment without removing jamb screws, reducing bolt misalignment and rework.

A cam-linked transom and side latch removes threshold latches, cutting installation effort while maintaining wind and impact resistance.

A housing-mounted damper slows exit device movement near impact points to cut operating noise without sacrificing fast door operation.

Wing-tab latch geometry improves grip on electrical enclosure doors, enabling tool-free opening with gloves while maintaining secure closure.

A back-mounted U-shaped bar and shaped plates reinforce the strike side to resist forced entry without harming appearance or door closure.

A nested shaft and spring-loaded cover keep aircraft service access panels flush, cutting gaps that hurt stealth, drag, and maintenance cost.

A hidden tightening piece and spring-loaded base secure a rosette-less window or door handle without bulk, rotation, or transport damage.

An accelerometer attachment on the latch handle detects open or closed lock status and sends alerts without replacing existing locks.

A spring-biased lock peg and receiver let wheelchair backrests detach easily while automatically returning to a secure locked state.

A handle-mounted side indicator reveals incomplete overhead bin door locking despite deflection and tolerances, helping prevent in-flight opening.

A built-in damper and stop slow latchbolt and pushbar motion to cut exit device noise while preserving reliable door operation.

A pivoting catch plate grips a smooth bolt in the retracted position, preventing floor drag and frame interference until release.

A frangible insert breaks when a latch is opened, separating its head and base to give a clear visual sign of tampering.

A pivoting and translating bolt linkage enables secure multipoint locking with a lower profile, less recessing, and minimal interference with closure.

A foldable multi-link latch closes gas turbine nacelle sections across stiff seals with long travel and lever action, without come-along tools.

Automatic locking keeps the pedestrian door closed when sectional panels tilt, preventing gravity-driven opening during door movement.

Different coatings on the latch bolt and strike, plus debris removal, cut door opening force, wear, and noise over time.

Brackets and arms span multiple cabinet panels to shield the lock and resist cutting or drilling while preventing unauthorized access.

An eccentric cam and roller sleeve let both door handles retract the latch smoothly while reducing friction, interference, and jamming.

A free-play handle and resilient hook keep overhead bin doors securely latched and visibly flag incomplete locking despite compartment deflection.

A movable gear and coupler layout lets one closure lock fit 20 mm and 22 mm depths, simplifying replacement and installation.