Building Locks TRIZ Cases

Radial displacement of a gear nut element blocks unauthorized manipulation while allowing normal operation without adding complexity.

Segmented magnetic housing blocks external tampering of the garage door trolley emergency trigger while allowing internal rope access.

A multi-point pivot door lock uses a drive bar transmission to extend locking members for enhanced security.

Replacing linear dampers with a rotary mechanism and polyurethane stop elements provides bidirectional damping while reducing noise and manufacturing costs.

Segmented reinforcement using basalt fibers and stainless steel reduces heat loss while maintaining structural integrity during fire exposure.

A locking device uses a lever transmission gear to amplify bolt stroke length from an espagnolette rod drive mechanism.

A conformal lens covers chip-on-board LEDs, reducing assembly complexity and device volume while maintaining high illumination intensity.

A fusible link triggers an interlock mechanism to secure cabinet doors against thermal warping.

An angled folding element holds a lock bolt in end positions via elastic buckling, eliminating high actuating forces and vibration sensitivity.

A plastic enclosure latch uses a rocker lever to amplify hand force and compress the sealing gasket.

Guide slots deflect horizontal motion into vertical actuation, distributing operating force across segmented drive parts to resolve complexity-force trade-offs.

Segmented collar and inward projections constrain lever arms to prevent accidental release, resolving the reliability versus ease of operation contradiction.

Segmented retention members enable staged failure in a rotatable latch, preventing accidental withdrawal under high vertical loads.

A lockable cold room latch uses a segmented turn knob and index washer to rotate the release lever ninety degrees for quick manual disengagement.

A security lock uses independent main and auxiliary deadbolts to secure armoured doors.

Segmented jaws separate perpendicular to the latch plane via traction, resolving complexity trade-offs while ensuring child safety in dryers.

A fastening element projection extends beyond the drive to mark window positions during pre-assembly.

An indicator mechanism on a wheeled platform displays the locking state via visible component positions, eliminating uncertainty about wall striker engagement.

Groove-guided latch mechanisms eliminate dust generation during FOUP lid closure, maintaining mini-environment cleanliness.

A latch system integrates spring mechanisms to lock fasteners without external tools, enabling precise panel gap alignment.

An integrated locking bar merges interlocking and locking functions, reducing component count and weight while preventing simultaneous drawer opening.

A sliding door assembly uses an inverted track system and biasing mechanism to position partial panels in a concealed overhead plane.

Outer lid locking portion automatically engages engageable portion via coil spring urging member to resolve toggle latch complexity.

Angled tongue in cuboid attachment engages receiving pocket to absorb prying forces and secure mushroom head pins without replacing hardware.

A pivot hook door locking device interlocks with frame holes to secure hinged doors in electronic equipment.

A portable lockable storage container uses a securing cable and spring-biased latch to retain the lid in a closed position.

Segmented locking arms enable selective bin retention, resolving the trade-off between device complexity and reliable compartment security.

Integrating adjustment means into the fixing plate and rear wall eliminates extra components, reducing device complexity while maintaining compactness.

A flat electromagnet locking device secures sliding door leaves within guide rails using a vertical armature mechanism.

A displacement arrangement for sliding windows uses a rotatable roller on a guiding member to move the leaf transversely relative to the fixed surround.

A blocking element engages a drive gear pinion to intercept mechanical forces before they reach the connecting rod.

Shielding means obstructs access to the actuator slide in ventilating windows, preventing intrusion while maintaining ventilation operation.

A sliding faceplate window fitting moves a locking element to engage the strike plate.

Coupling element applies preload torque to input shaft, preventing actuating lever misalignment during lift-slide operation.

A gravity pin and torsion spring mechanism secures trash can lids against wind while enabling automatic opening during inversion.

A window handle uses a spring-loaded driver to adapt length automatically, reducing component count.

A rotating locking mechanism with radial lug arms replaces sequential bolt tightening to cut operation time while maintaining a tight pressure seal.

A threaded adjusting member moves a follower to shift the draw member position relative to the retractor.

Three-piece window frame design with rotating handles and internal slide bars simplifies installation and repair while providing reliable emergency egress.

Segmented collar and nested cap allow large items through narrow neck while maintaining tight seal.