Construction Fastening Devices TRIZ Cases
- Six-Way Latch Bolt Assembly Universal Mounting
Universal faceplate and cylindrical sleeve design accommodates mortised and non-mortised doors, eliminating separate assembly inventory requirements.
- Modular Gear Unit Tool-Free Assembly
Segmented coupling catches enable easy gearbox replacement without destroying the connection.
- Gear Wheel Bearing Mount for Window Fitting Adjustment
A gear wheel bearing mount connects window frame rods via positive engagement, eliminating manual cutting and enabling precise length adjustment.
- Lock Cylinder Position Indicator via Intermediary Display Element
A thin-walled annular plate mounted between the cylinder housing and collar reveals position markings through a viewing window.
- Self-lock Module Retrofit for Automatic Cam Latching
A self-contained module integrates with existing mechanical locks to enable automatic slam-latching functionality without manual rotation.
- Toggle Cam Latch Assembly for Rotational to Linear Motion
A toggle cam latch assembly transfers rotational force into linear motion via translation plates.
- Oblique Bolt Door Lock with Curved Turning Pieces
Curved turning pieces convert sliding friction to rolling motion in an oblique bolt, reducing wear and extending service life without excessive lubrication.
- Locking Apparatus With Deformed Threads For High Cantilever Loads
Deformed threads on a stainless steel plug resist high cantilever loads and corrosion in storage containers without specialized installation tools.
- Multipoint Lock Backset Facia Orientation Adjustment
Rotating the backset facia on a multipoint lock gearbox changes the backset distance, eliminating inventory for multiple window sizes.
- Vehicle Door Latch Impact Resistance via Projected Part Engagement
A vehicle door latch uses a projected part and engagement hole to maintain striker retention during impact events.
- Espagnolette Fitting Connecting Rod Using Parallel Wire Sections
Parallel galvanized wire sections replace elongated holes in espagnolette fitting connecting rods to transmit motion.
- Door Handle Gear Mechanism for Compact Design
Internal kinematic unit converts grip rotation to rod translation, reducing external dimensions while minimizing profile machining.
- Multipoint Lock Peripheral Assembly Counter-Rotation Prevention
A peripheral assembly for multipoint locks uses a rocker arm and eccentric projection to block sliding latch rotation.
- Handle Transposition Adapter for Sliding Door Corner Access
An adaptor mechanism transmits motion from an external handle to an internal lock via a segmented case with opposing grooves.
- Vehicle Door Latch Release Cancel Mechanism
A vehicle door latch system uses a release cancel mechanism to disconnect force transmission paths.
- Tonneau Cover Latch Assembly with Orthogonal Button-Slider Mechanism
A tonneau cover latch assembly uses a button and slider to actuate the locking mechanism.
- Roof Window Locking Device Tool-Free Assembly
A roof window locking device uses a captive actuating element in a keyhole recess for tool-free assembly.
- Convertible Cam Drive for Multi-Orientation Door Latch
A convertible cam drive assembly enables door handles to pivot and operate across multiple orientations using a sliding bolt mechanism.
- Preassembled Cam Lock Assembly with Lost Motion Slot
A preassembled cam lock assembly uses a lost motion slot to orient the drive pin for reliable rotation.
- Window Metalwork Mode Conversion via Eccentric Coupling
Eccentric coupling mechanism enables rapid mode switching without replacing the entire metalwork system.
- Vehicle Door Latch Inertia Balance Weight Collision Locking
A vehicle door latch mounts a balance weight on the pawl lift to apply inertia load that resists panel deformation forces during collision.
- Vehicle Hatch Assembly with Toggle Linkage and Helical Lock
Over-center toggle linkages compress vertical height while helical locking surfaces secure the dome for single-operator assembly.
- Integrated Rotary Latch and Hold-Down Mechanism for Rail Doors
A swiveling sash fastener rotates around a guide pin to lock the door in multiple directions.
- Reversible Door Lock Mechanism with Interchangeable Linkage
A reversible door lock mechanism uses interchangeable coupling members to adapt to various door orientations.
- Automatic Anti-Theft Latch Mechanism for Door Locks
A door lock integrates an anti-theft latch that automatically extends when the door closes.