Shutters/ Movable Grilles TRIZ Cases

Articulating connectors with swinging arms adjust adjacent barrier sections from zero to 270 degrees, resolving inflexibility in standard home safety gates.

A roller shutter ventilation unit moves outside air into buildings using a motorized rotary member housed in a lower box.

A double canvas door uses a single roller and motor to wind both canvases, closing the upper chamber with a band to stop air leaks.

Fusible link releases friction brake to prevent rapid falls without power.

Snap-fastening connection means allow tool-free blade replacement, resolving the trade-off between secure interlocking and maintenance complexity.

Active and passive modules deploy a disposable dry curtain to isolate toxic substances while preserving building structural integrity.

A swing door mandrel presses the sealing strip against the frame rail to create a watertight barrier.

Integrated kinematic chain links reduce component count and weight while enabling adjustable slat orientation.

Relocating the catcher outside the casing simplifies manufacturing and allows easy adjustment of the opening stop without disassembly.

A nested security gate uses projections to support an inner frame within an outer frame for selective passage.

An optical acquisition device captures images of the polyol and isocyanate mixture jet during profile formation.

A composite roller shutter slat joins a metallic outer body with an insulating plastic inner body via snap-fitting means.

Resilient lateral edges on a roll-up door curtain absorb transverse pressure to distribute forces evenly, preventing decoupling from guiding rails.

An outer frame and detachable cover form a closure device that simplifies assembly while minimizing thermal bridges in fire protection walls.

A releasable security shutter uses a pedal mechanism to pivot the frame away from a window for emergency egress.

A hollow bearing and slide pin mechanism detects obstacles through mechanical torque differences.

An inverted top casing design accommodates a roller bar and winding reel, eliminating complex insertion maneuvers that cause component damage.

Segmenting the wind lock into a 90-degree face and bottom bevel reduces friction while allowing impact escape, preventing binding.

Segmented guiding mechanisms restore the curtain position after breakaway events, preventing damage from collisions.

A two-way clutch mechanism controls winding member rotation to enable precise arbitrary positioning of suspended sliding doors.

Pre-drilling holes through plastic foam insulation allows direct clip insertion, eliminating complex milling operations that generate dust during manufacturing.

Segmented door panels rotate horizontally to provide vertical flexibility, preventing pet injury while maintaining structural strength and draft sealing.

Rotating engagement members enable screen guide detachment from support rails at intermediate positions.

Segmented gate components reduce shipping volume while maintaining structural rigidity.

Segmented gantries move shade panels along main trusses to regulate interior sunlight exposure.

A rolling shutter end retention system uses a large washer and spacer to increase slip capacity between slats and guide tracks.

Segmented stiffening elements with form-fit connections resolve rigidity versus accessibility trade-offs in roller shutter housings.

Staggered openings and bridges in a flex screen provide ventilation while preventing accordioning distortion.