Building Locks TRIZ Cases

A spindle-supported locking device uses sliding unlocking knobs to secure a lid in place.

A hooking unit uses an elastic return mechanism to push a rotatable element into a retracted position.

A rotatable latchbolt mechanism uses an elastic element to hold the bolt in an extended state.

Replacing bulky hydraulic drives, the integrated lever mechanism amplifies force to move heavy covers while minimizing installation space.

A stack of spring washers clamps a strike plate against a hooking wing, absorbing vibrations to prevent screw loosening.

An angled leg on a fitting component prevents parts from falling out of C-shaped window grooves during frontal assembly.

A universal panic lock uses a rotating latch bolt to switch between left and right door orientations.

A cam fastening device couples enclosure flanges to maintain flame paths.

Cam disk mechanism replaces complex cable systems to enable reliable, low-maintenance locking and unlocking of aircraft landing gears.

Segmented rotating actuating bars with universal stops prevent simultaneous drawer extraction, resolving safety risks without increasing device complexity.

A modular panic closure device uses a reversible kinematic chain to switch between pushbar and touchbar operation modes.

A push button assembly integrates a latch and resilient member to actuate a pushing bracket for storage device removal.

Camming action and a spring bias the second retaining member to prevent untimely openings while allowing easy opening.

A reversing lever pivots a two-armed connector to drive bolt rods in one direction.

Segmenting the rocker from the locking body prevents deformation and reduces structural complexity while maintaining precise positioning.

A case latch assembly uses a backup rivet to engage the reciprocating element, ensuring secure closure even when the primary ramp insert fails.

A switchable magnetic brake frictionally locks the motor shaft of an electric power steering system to prevent unauthorized vehicle operation.

Elastic prestressed plates straighten under clamping force to secure handles without drilling, preventing thin plate deformation during installation.

Mechanical interlocking between locking clip ledges and channel cleats prevents structural instability without magnetic degradation.

Angled track sidewalls and spring-loaded wheels allow a dock door to detach from guide rails upon impact, reducing structural damage and repair costs.

Segmented key shafts with high-strength inserts and internal rolling elements defeat static copying while reducing material usage.

A diesel fuel filter lower cap uses a double-lock structure to prevent fuel leakage during vehicle operation.

A locking mandrel interrupts force flow between a rod connection and switching nut to prevent external actuation.

A slide safe uses a motor-driven lead screw and flexible linkage to retract the door inward within the encasement.

A window sash lock uses biased plungers and a spring-loaded bolt to engage automatically without user input.

A sash retainer bar assembly distributes forces along a continuous interface to secure fenestration frames.

Merging separate levers into one control element reduces device complexity while maintaining reliable latch engagement.

A positioning member transfers deadbolt alignment to the door frame, eliminating approximation errors during strike plate installation.

Coupling rods transmit shear and tensile forces between door leaf elements, simplifying the installation of complex locking arrangements.

A wedge clamping device uses a chamfered soft sliding surface to allow easy placement under a door leaf.

Angled key arms pack multiple functions into a compact form, resolving the trade-off between versatility and unwieldy size.

A fitting handle reset device transfers a spring element between stop positions to enable left-right conversion without reconfiguring components.

An integrated latch with an inclined surface simplifies the locking structure, reducing component count while preventing breakage during closure.

A pivoting clamping pawl secures a sliding locking rod via a spiral surface and torsion spring to prevent floor damage.

Segmented drive rod and fixed faceplate elements merge into a simple, low-weight closure system that maintains high stability for heavy goods.

Intentional clearance in the coupling mechanism blocks direct rod manipulation, preventing unauthorized unlocking of tilted doors.

A modified tilt latch bolt features a resilient cantilever that uncovers a channel to engage the window jamb.

A sliding door lock device pivots a bolt via gears to prevent manipulation by thin objects.

A cover element shields the striker base part from debris ingress in folding roof assemblies.

A closure bolt with an axially adjustable roller adapts to varying sash-to-frame distances through elastic sleeve displacement.

A door access system embeds control devices within a translucent reflective layer to manage entry.

A deep-drawn metal cup retaining element forms a stable locking interface for window fittings.

A lock catch cup with a bent leaf spring accommodates misaligned latches without precise installation.

A door fitting uses an elastic retaining element moving between positions in a receptacle to detach panels without damage.

Modular coupling blocks with cantilever arms adapt to varying rebate profiles, eliminating the need for multiple base bodies and tools.

A curved flexible support distributes stress at the connection point, preventing breakage while maintaining consistent threshold force.

A panel-mounted handle actuates a frame locking element to secure doors and windows without requiring user interaction with the frame.

Melting safety pins block unlatching during fire heat, preventing door opening.

A rotating securing plate mounts on a doorknob to extend beyond the door edge and engage a frame catch.