Building Locks TRIZ Cases

Flexible cables anchor to furniture and drawers, preventing simultaneous opening while absorbing transit impacts.

A self-releasing ceiling latch uses a front-mounted mechanism to enable tool-free panel installation and removal.

A pivoting cover lock mechanism uses a latch moving in an intersecting direction to engage a recessed portion.

Rotating the lower rosette expands nested clamping sections radially, eliminating screw installation complexity while maintaining non-rotatable fixation.

Segmented striker box assemblies with divergent screws resist lateral kicks by distributing impact forces across multiple structural dimensions.

Dual mechanical locks require a dedicated key to rotate the cam, preventing tampering while maintaining reliable switch operation.

An automatic shootbolt assembly uses a biasing member and actuation lever to extend the bolt upon door closure.

A lock housing edge collides with the pivot bolt body to prevent unwanted rotation.

Polygonal shaft coupling with a wave washer isolates axial loads from the drive mechanism, preventing gear wear while enabling secure hand lever attachment.

A lockset safety mechanism uses a spring-loaded push rod to block unauthorized access.

Segmented door leaves with electromagnetic buckles allow automatic release in emergencies, preventing evacuee injury from wide swing radii.

A pivoting lock-out bar secures electrical panels using L-brackets and a padlock.

A plug locking assembly uses a rotatable cam to secure the latch against accidental depression.

A sliding lock integrates actuation and blocking into one slide to secure sash windows.

Rotating lock indicator displays lavatory status from multiple viewing angles.

A nested indicator assembly moves between locked and unlocked positions to provide clear visual status feedback for door locking devices.

An emergency door lock prevents unauthorized access by requiring a timed sequence to unlock, resolving the contradiction between easy operation and security.

Offset rivet rotation compensates for manufacturing tolerances, ensuring precise seal contact between casement window sash and frame.

An L-shaped marking fixture with an adjustable fitted plate aligns drill holes on door surfaces.

A shoot bolt lock assembly prevents active door locking unless inactive door bolts engage.

Cam mechanism releases blocking points via swing and slider movement, preventing unauthorized opening under excessive forces.

Two parallel retaining means withhold the nib, eliminating heavy materials and reducing weight while maintaining reliability.

Single bearing support reduces gearbox volume and production costs, preventing door jamming without requiring premium materials.

Terminal piece uses an eccentric pin to adjust catch position, preventing movement under overload.

A lock mechanism uses L-shaped drive rods to actuate connecting rods directly, eliminating complex toothed followers.

A melting bracket releases a firedog link that blocks the deadlock link during fires.

A lock assembly uses an engaging element inserted into a latching system in one direction to enable noiseless operation.

An elastic locking element transitions between blocking and releasing states to fix a drive rod, preventing loose parts from causing sluggish operation.

A spring-loaded ratchet latch engages a U-shaped bracket mounted on the drawer side rail to secure the sliding door.

A track-mounted locking device uses a pivoting lever bar to secure sliding doors without permanent frame attachment.

Pivoting orthogonal plates reduce friction against a solid latchbolt, resolving strength and durability trade-offs for reliable door closure.

A control device connects an emergency button and door lock via a bus system to manage locking mechanisms.

A steering lock camshaft uses a low-strength projection connection to separate under load.

Segmenting the lock into a dynamic cylinder and spring system eliminates sticking during rapid locking cycles.

A window lock uses a retention mechanism to hold the latch retracted until frames close.

A remote management system generates and transmits dynamic unlock codes to customers via email or SMS, enabling immediate access to storage units.

A base profile groove guides a slider to reduce friction, eliminating noise and operational force in emergency exit doors.

A self-locking lock employs a pivot arm to block the slide, resolving the conflict between selective automatic locking and key-free ease of operation.

A double-leaf door lock uses a rack and pinion to translate handle rotation into linear latch movement.

A drawer locking mechanism uses rotating hooks and elastic means to secure the unit.

An ignition circuit delays magneto grounding to maintain spark for residual fuel combustion.

A sliding wall locking mechanism integrates a display device to visually indicate the locked state of door leaf elements.

A portable door security device with metallic front bars and rail supports creates a rigid connection to prevent unauthorized removal.

An emergency manual release mechanism disengages the locking rod to allow door opening during air pressure loss.

Interlocking stiffeners transfer forces between sliding panels, enabling easy maintenance and improved durability for emergency vehicle cabinets.

Door unlock detection triggers flush to reduce water waste from inaccurate presence sensors.

A radially movable slide engages a retaining clip to prevent position drift and enable tool-free maintenance.

A window sash interlock uses a pivotably mounted locking member biased to automatically return to an unlocked position.

Graphene interfaces bond diamond and carbide particles into a steel matrix, slowing angle grinder cutting speeds by wearing down the disc.