hingetype

Hingetype is a term used in mechanical design and product documentation to refer to a category of hinge mechanisms defined by how the parts rotate, how they are mounted, and the loads they are intended to carry. In engineering catalogs and CAD models, hingetypes serve as a shorthand to communicate the basic kinematic behavior and mounting requirements of a hinge without specifying a particular brand or size.

A hinge type is typically described by several attributes: the axis of rotation, the range of motion, the mounting style for leaves or plates, and the material or finishing that affects wear and corrosion resistance. The key distinction is between hinges that permit rotation about a single axis (one-DOF) and more complex hinges that provide multiple axes of motion or additional constraints.

Common hinge types encountered in products include butt hinges, continuous (piano) hinges, concealed or security hinges, pivot hinges, and living hinges made from flexible plastics. Each type has typical applications and mounting schemes: butt and pivot hinges for doors and lids; concealed hinges for furniture doors that require an invisible installation; piano hinges for long, flat panels; living hinges for thin plastic parts.

Choosing a hingetype involves considering load, durability, clearance, environmental exposure, and manufacturability. Designers match hinge type to movement requirements, load path, material compatibility, and assembly constraints, often using standards and catalogs to ensure interchangeability and replacement.

Related concepts include hinge, hinge joint, and living hinge.