Construction Fastening Devices TRIZ Cases

A controller maintains electric display energization while a vehicle door remains unlocked.

Profiled drive rods establish line contacts with guide elements, reducing frictional forces and easing operation while accommodating tolerance variations.

A safety device uses a control sensor to keep the locking member secured even if the key cylinder is forcibly removed or destroyed.

Flexible push-pull cable drives latch mechanism while blocker pin physically constrains secondary lever to resist jimmying attempts.

A hook and recess engaging structure connects two electronic device casings through a precise gap between the hook end and the recess front edge.

A locking device uses a guide pin to block rod translation and prevent unauthorized access.

A movable support body retracts via a drive rod to clear the sash path during unlocking.

A spacer component supports hand levers in driving rod gears across large distances between the transmission housing and the sash web.

A vehicle door closure latch uses a lock lever cam to disconnect the inside release lever from the pawl during child-lock states.

Front-mounted input gear and step-up transmission resolve rebate space constraints while reversing rotation direction for conventional locking compatibility.

A vehicle latch uses a single switch to detect fork bolt and detent lever positions.

A window lock uses a mechanical adjusting mechanism to set torsion spring preload for different operating requirements.

Segmenting the lock into two parts eliminates tool-based assembly, reducing time and costs while maintaining reliable quarter-turn operation.

Spring-loaded latches resolve the contradiction between secure closure and user strain by enabling easy battery compartment access.

A combination lock uses a segmented bolt and latch mechanism to secure locker doors against frame bending attacks.

A locking part uses a tilted clamping plate to engage groove edges securely.

A recessed lock housing protects the mechanism from drilling while enabling single-handed operation.

An interior-mounted release lever rotates across the door-body gap to mechanically engage the latch, restoring manual access when electrical power is lost.

A window lock with perpendicular mounting surfaces secures outward-opening sashes without obstructing the frame.

Removable spacers and a threaded latch bolt adjust the backset dimension, enabling single manufacturing setups to serve multiple door configurations.

A motor vehicle door lock catch lever blocks actuation via inertia forces to prevent unintended opening during crashes.

A spring-loaded catch lever blocks the locking mechanism to prevent unintended opening during crashes while releasing only for normal operation.

Triggering lever disengages the drive from the locking mechanism, allowing emergency interruption of the closing function with minimal force.

Extruding a closing element into the warm profile material creates a unified structure that eliminates separate assembly steps and improves security.

Universal distributor reduces construction parts and complexity while adapting to various cam types.

A latch assembly uses a helical guiding channel to secure a mounting member without tools.

Segmented locking members allow independent door access while maintaining overall security through a shared control mechanism.

A stepped faceplate with a protruding front section covers window grooves while maintaining standard rear insertion dimensions.

Intermediary cuffs and connecting elements lock faucet handles in place, preventing children from turning valves to hot positions.

A multi-point door lock system uses a link to coordinate deadbolt and latch movement via cam mechanisms.

Segmented pivotable stops prevent central alignment errors and jamming in mortise locks by isolating nut half interactions.

Integrating detecting switches within the actuator housing reduces wire length and improves water resistance for vehicle door latch mechanisms.

Merging pivot axes into a single shaft reduces child protector mechanism size while maintaining torque transmission switching.

A vehicle seat locking mechanism connects the unlocking handle directly to securing elements via a single pivot point.

A motor vehicle door latch incorporates a quick-unlink element that shifts a linkage to decouple the actuating element, reducing keyless entry response time.

Segmented drive rod adjusts length to access bottom seals, eliminating door removal and floor damage during maintenance.

An overlapping gear arrangement uses a free space to reduce axis distance, enhancing load capacity in window drive rod linings.

Transmission mechanism decouples output shaft from drive gear to eliminate return springs and reduce motor size in door lock actuators.

Offset lock cylinder nests within door bore, reducing exterior projection and vulnerability to vertical attacks.

Axially extending flanges on an inside housing overlap a mounting plate to reinforce the lock cylinder against radial expansion.

A dual-latch assembly decouples manual and powered door operations to enable two-handed emergency opening.

A roller bolt uses a snap ring for axial positioning on the collar bolt.

A door lock thumbturn transitions the outside lever between locked and unlocked states.

Asymmetric arm positioning at 35 to 40 percent of the window length facilitates effortless opening and balanced movement.

A transmission lever amplifies the pivotal movement of a vehicle lock triggering mechanism to fully disengage the pawl from its detent position.

A spring-loaded rung guard blocks pool ladder access via a pivoting panel, preventing unsupervised child entry.

A rotational input device drives primary and auxiliary lock bolts via a common mechanism, reducing actuation torque required for multi-point locking.

Asymmetric triangular fastening configuration distributes crash forces to prevent unintended door opening.

Hook bolt blocking flanks engage a pivoting locking element to prevent improper displacement from pre-closed to re-closed positions.

Merging the motor actuator and locking mechanism within a single housing reduces installation space while maintaining automation capabilities.