Building Locks TRIZ Cases

Movable indicator plate displays lock status through escutcheon windows, resolving visibility complexity trade-offs.

A security door brace system uses a floor-mounted plate and elongated pins to block inward door opening.

A hinged secondary sash uses a sliding operator to retract latching elements, allowing the unit to open inward for maintenance.

Molded zamak components and a curved spring eliminate noise from folded sheet metal, ensuring smooth emergency door closure.

A locking structure uses a tension spring to move a hook portion between release and locking positions.

Linear slopes on the slider replace spiral worm wheels to reduce axial height and production costs while maintaining reliable steering shaft locking.

A brake engage part operates within an enclosed space formed by the guide rail and support member to prevent contact with external objects.

A container safety-latch uses a rotatable outer sleeve and U-shaped pin to secure contents from children.

Linkages tilt the cover to face away from travel direction, preventing air pressure damage while maintaining ventilation.

A gravity-dependent limiting block prevents direct pivotal movement of the latch, maintaining anti-picking security when springs fatigue.

An elastic torque transmission mechanism absorbs impact forces between rotating components, preventing surface damage and extending service lifetime.

A window vent stop uses a compressible spring leg to secure the housing against the sash for snap-lock installation.

Segmenting the throw bolt into a hardened cutting barrier and a protective casing resolves the contradiction between break-in resistance and outdoor durability.

An anti-fire door lock employs an elastic member to drive a blocking pin into a constraining slot, maintaining fire-excluding reliability during thermal events.

A latching mechanism incorporates a go-gauge to verify component dimensions, preventing incorrect parts from entering storage and reducing sorting errors.

A door leaf with a round interface adjusts position via pressure difference.

Wedge members engage rollers along a guide to eliminate play, preventing heavy loaded trays from toppling the machine during operation.

A latch mechanism with a biased pivot arm automatically engages a mating pin to secure fan cowls.

Stamped interlocking latches join the strike plate to the base plate, eliminating screw connections and reducing production costs.

An integrated elastic component engages a housing groove to prevent detachment during drops, reducing assembly complexity and manufacturing costs.

Rotating cams transmit plate movement to independently control hook and tip latches in a mortise lock assembly.

A lock assembly uses a cam and slider mechanism to secure telecommunications enclosure domes.

A rotating eccentric lock lever sets precise platform height to prevent can damage during high-speed filling operations.

Aligning the link shaft with the key force line reduces manufacturing costs by eliminating reinforcement members.

Axial indicator extension reveals unlatched state without adding electronic complexity.

A counterbalance door latch uses gravity to shift its center of gravity and secure a stall door.

Adhesive bonding replaces screws on window frames, preventing water ingress and thermal insulation loss.

Dual actuators prevent unauthorized access by ensuring the drawer opens minimally across its width.

A smart lock cover integrates a fingerprint module in a through hole while an elastic resetting assembly provides automatic reset.

A spring latch mechanism secures a computer door using a chamfered rubber edge to form a liquid-tight seal against recessed casing surfaces.

A bolt work mechanism uses sliding sliders and a drive bit to provide tactile force feedback during door locking operations.

A sliding door sash uses slidable rod segments within profile grooves to transmit motion from a single controlling element to multiple closing points.

A cam locking mechanism moves control rods automatically during door closing.

Relocating the drive mechanism into a recessed frame gear groove reduces profile height while concealing wiring from the exterior view.

A micro engine drives a metallic reel to wind high-tenacity polyester tape for electronic spare wheel elevation.

A universal multipoint lock assembly uses an adjustable drive rail and modular faceplate to fit various door configurations.

Segmented locking members prevent simultaneous drawer opening by blocking specific rails, resolving complexity trade-offs.

Gravity moves the connecting portion between paths during rotation, resolving trade-offs between multi-level versatility and operational reliability.

Segmenting actuation into two angular ranges secures the actuator axially in the second range, preventing contamination while maintaining user feedback.

A movable strike plate mechanism compresses door gaskets to attenuate electromagnetic interference.

A concealed panel locking mechanism uses a ferromagnetic member moved by a magnetic key to secure container contents without visible fasteners.

Segmented exit trim assemblies allow quick lever handle reorientation while a sacrificial shear pin protects internal components from over-turn force damage.

A planar axial coil spring housed in a discoid body returns door handles to rest within minimal projection.

Segmentation and intermediary principles enable a compact connector that secures helmets to motorcycles without bulky storage requirements.

An angled output pinion axis paired with helical gearing minimizes center distance, resolving the conflict between gear simplicity and overall drive length.

A single control handle moves a slide unit along the fixed stile to operate and close the window sash.

A sliding door safety lock uses a protruding contact element to engage the operating rod and prevent handle movement.

A spring-biased latch assembly automatically locks NEMA enclosure panels upon closure.

A door barricade mounts between the interior door face and adjacent floor using a rotating vertical bolt mechanism.