Building Braking Devices TRIZ Cases

A vinyl door wedge uses a resilient inclined surface to engage the door bottom while a hook enables easy retrieval.

A magnetized output shaft enables direct magnetic field scanning by sensor devices to measure speed and position within a door drive unit.

Mixed powder filling covers the damper assembly in a floor spring to prevent dust accumulation that causes rust and hydraulic oil freezing.

Front-mounted solenoid valves and bevel gears reduce manual opening effort for fire doors while enabling greater than 180-degree angles.

Pivoting rocker arms engage cam profiles to absorb impact energy and prevent violent door closure.

An electronic control unit measures supply voltage and dynamically adjusts coil current to prevent overload while maintaining consistent locking force.

A hinge assembly uses a damper mechanism to control door movement.

A double door coordinator uses a buffering spring to absorb external forces acting on the active door.

A door closing sequence controller uses a locking mechanism to clamp the trailing panel actuator until the leading panel closes.

A self-deploying door stop uses a spring mechanism to automatically extend a leg member for secure positioning.

A motorless sliding door closure device uses a tension spring to store energy during opening and release it for automatic closing.

Asymmetric friction in curl spring holders prevents sash drop without hop, reducing manufacturing costs by balancing wider weight ranges.

A stationary cap prevents the cellular Vulkollan damping element from bulging when compressed by the movement element in a narrow guide rail.

A trapezoidal support arm arrangement holds a furniture lid across a wide pivot range using frictional forces.

An in-wall sliding door rail positions the doorstop via a longitudinal retaining rod, reducing lateral space occupation and eliminating vibration noise.

A hinge uses a segmented axle unit to enable smooth rotation between leaves.

Unidirectional master-slave control synchronizes dual door leaves, preventing mechanical interference without complex bidirectional protocols.

Separating the damping device and return mechanism onto opposite walls prevents one-sided loading, enhancing reliability.

A hinged surface chock transitions through a gap between door panels using an articulated arm and ball joint to reach stowed or deployed positions.

A pivotable cam mounted on a door closer shaft adjusts its position to maintain closing force.

A hydraulic actuator uses a proportional valve to adjust damping characteristics independently of piston position.

A door coordinator system uses an internal screw to adjust the triggering element displacement range.

An intermediate portion creates a flush opening for tool access, resolving the contradiction between spring device complexity and ease of operation.

A compact viscous rotary damper assembly controls vehicle door velocity through internal rotor motion.

A tailgate guide bumper system merges the support structure with the rear lamp housing to reduce assembly operations.

Coupled adjustment devices reduce bearing play and rattling while ensuring precise pivoting element positioning.

Rotating an annular ring raises the buffer head through cam geometry, eliminating clamping instability and reducing part count.

Brush decelerators deflect against guide members to absorb kinetic energy, preventing mechanical shock and component wear in manual overhead doors.

Threaded adjustment and expansion fastening resolve the trade-off between secure mounting and easy dismountability for vehicle doors.

A fire door hold-open system uses a detection device to suspend wireless connection monitoring when the leaf is closed.

A radial driver finger mechanism translates fixed leaf motion to actuate the active door leaf.

A sliding door damper uses a pivoting latch to guide and retract the door mechanism.

A hinge uses a cam-shaped lever to adapt damping stroke for smooth door closure.

Replacing spring tongues with a rolling ball and sliding pad reduces friction noise and wear while maintaining compact dimensions in door and window actuators.

A compact guide device uses a coil spring and rack mechanism to manage door movement within tight furniture frames.

A vehicle sliding door assembly uses a straight rail and pivotally coupled closing member to guide lateral door movement.

A multi-part driver element with a wedge-shaped receptacle limits pivot angles to prevent impact noise and extend service life.

A concealed door closer mounts inside the upper rail to provide reliable closure without external hardware.

Linear guide elements align activator and driver in furniture braking devices, compensating for assembly tolerances to ensure reliable engagement.

Segmented locking contours with stationary and movable members prevent unintentional release of furniture hinges, reducing crash risks.

Segmented assemblies with movable triggers manage non-perpendicular alignments, eliminating noise and injury risks from door impacts.

A door closer cover uses interchangeable slots and a flexible hook clip to secure the pinion shaft for left or right-handed operation.

A connecting lever with a cam defines door positions while a spring-loaded roller maintains holding force, eliminating floor modifications.

A bump stop uses a rolling diaphragm to progressively damp vehicle closure movement through elastic distortion.

A hinge mechanism uses a cam and piston to transition biasing modes during rotation.

A furniture drive uses an angular adjustment element to position a spring device along a threaded section for compact integration.

An inverted cylinder screw secures a hollow drive linkage, eliminating pressing tools for disassembly.

Magnetic coupling replaces mechanical wheels to support sliding door weight, simplifying assembly and reducing device complexity.