Lukkopari

Lukkopari, literally meaning “lock pair” in Finnish, is a term used in mechanical design to describe a configuration in which two locking elements are paired to engage a component or assembly. The term is primarily encountered in Nordic engineering contexts and in discussions of multi-point locking systems. It is not a universally formal standard, but a descriptive label for a dual-engagement mechanism.

Mechanism: Two locking elements—bolts, latches, or pins—are arranged to engage with corresponding receptacles. They may be activated by a single actuator with linked motion or by two independent actuators. Synchronization is common to ensure simultaneous engagement and even load distribution; in some designs, the elements can be actuated independently to provide redundancy or selective locking for maintenance.

Applications: Lukkopari concepts appear in high-security doors and safes, industrial equipment housings, heavy machinery, and some automotive locking assemblies, especially where increased resistance to shear forces or redundancy is desired.

Variations: Depending on the platform, lukkopari configurations may be described as two-point or multi-point locking arrangements. In some sources they are discussed under generic “dual locking” headings, reflecting differences in implementation rather than a single standardized form.

History and terminology: The term is used descriptively rather than as a formal standard. In practice, engineers may refer to similar configurations by terms such as “double latch,” “dual bolt,” or “two-point lock,” depending on the design and industry context.

See also: Lock, Latch, Multi-point locking system, Double locking mechanism.