Building Locks TRIZ Cases

Segmented rotating cover protects ignition switches from vandalism and moisture without obstructing key access, balancing security with operational ease.

A door catch uses a threaded ball plunger assembly to hold heavy doors open via frictional engagement.

A door lock mechanism with independent handle bars and a joint enables separate rotation of each side.

A door hardware locating tool uses a rotatable insert to set precise backset distances for edge and cross bore alignment.

Dimple stops engage tray ribs to lock the sliding lid, resolving the trade-off between easy access and secure closure for mixed-size contents.

A moveable cam adjusts between two axial positions using a biasing member to project different distances from a supporting member.

Opposite hook orientation prevents tilting or lifting disengagement while segmentation increases attachment strength without adding device complexity.

An integrated L-shaped fitting element and hairpin spring axially secure the drive rod, reducing assembly complexity while maintaining connection reliability.

Adjustable locker walls slide along tracks to create customizable storage volumes, resolving fixed-size limitations in public exchange systems.

A rotating lock disk secures a window sash via a key-operated track and flexible cord assembly.

Segmented locking elements prevent forcible gear rotation in sliding door locks, resolving security trade-offs through dynamic biasing.

A portable safety box with a reversible locking mechanism enables quick transitions between fixed and mobile configurations.

A slide lock device uses a segmented latch plate and bolt mechanism to secure sliding panels.

A protective cover blocks a push button to prevent accidental actuation, ensuring reliable security against unauthorized access.

An external locking assembly employs actuated pawls and bolts to engage inactive swinging doors, eliminating complex internal routing.

A window door moving device integrates a rotating element with axial locking to secure control handles directly within the housing.

A latch system with an inertial lock mechanism uses a swing lever to disengage the sear element during acceleration events.

A depth adjustment adaptor connects a driver to an elongated member via a joint with at least one degree of freedom.

Segmented latch and frame design resolves the trade-off between large door accessibility and secure containment.

Segmentation and dynamics resolve installation complexity by allowing adhesive mounting of separate components while maintaining reliable locking.

Rotating locking clips and a gasket create a tight seal on duct openings, preventing tape peeling and sharp edge hazards.

A door stopper pawl floats above the floor using balanced weights and magnetic attraction to engage securely.

A door lock shaft cam mechanism enables manual rotation and axial movement to engage multiple control devices.

A lock housing integrates a European half-cylinder with an anti-panic faceplate and spring-loaded bolt mechanism.

Twisting a fixing body within a guide bracket compensates for cable elongation, ensuring reliable latch operation.

Adjustable abutment means modify the follower's angular stroke, standardizing one mechanism for diverse joinery applications.

A spring-loaded pull pin lock slides through a flush-mounted rail to secure sliding windows at any position.

A window handle socket integrates a spring-loaded clamping element within its gear nut body to secure the driver element.

An adjustable locking pin resolves tolerance issues by using a spring-elastic fixing element in an axial guide to prevent loose press fits.

A single drive arc connects the lock cylinder to the connecting rod slide and latch.

A sliding rod with locking members and elastic return means engages frame catches when a cam pushes the assembly into position.

Segmented clamping and holding sections enable one-handed door knob installation, eliminating the need to manually hold components while fastening.