Hinged

Hinged refers to a mechanical bearing or joint that connects two objects and allows rotation about a fixed axis. It is commonly used to attach doors, lids, gates, or panels to frames, enabling movement while constraining the parts to a defined path. Hinges are a fundamental component in furniture, architecture, and machinery, and may be simple or adjustable.

A hinge typically consists of two leaf plates joined by a pivot pin, with knuckles interlacing. One or more leaves may be recessed into the adjoining surface for flush mounting, and the hinge pin can be fixed or removable to allow removal of the connected part. The design ensures controlled movement and load transfer between the connected components.

Common types include butt hinges for doors, continuous or piano hinges for long lids, concealed or European hinges for cabinetry, spring hinges for self-closing actions, pivot hinges for revolving or ceiling-mounted applications, and strap hinges for wide doors or gates. Each type serves different mounting requirements, load capacities, and aesthetics.

Materials and design considerations influence hinge performance. Hinges are typically made from steel, stainless steel, brass, or zinc alloy, with polymer variants for specialized uses. Selection depends on load, frequency of use, environmental exposure, and decorative requirements. Designers account for clearance, lubrication, and wear to ensure longevity and reliable operation.

Hinges find widespread use in residential and commercial doors, cabinets, appliances, automotive and aerospace components, and industrial enclosures. Modern hinges may incorporate dampers, soft-close mechanisms, or self-closing springs to enhance functionality and user experience. Regular maintenance involves lubrication and inspection for alignment and fastener security.