lever tumbler
Noun: A lever tumbler is a flat, metal component within a lever lock mechanism. It is a specific type of tumbler that pivots on an axis and must be lifted to a precise height by the key's bit (the cut part) to allow the bolt to move and the lock to open.
The term lever tumbler is a technical noun used almost exclusively in the context of lock and key mechanics, security, and historical hardware. It refers to the internal part itself. * The design of the lever tumbler determines the lock's security level. * Antique locks often contain multiple lever tumblers.
- The locksmith explained that a worn lever tumbler was causing the key to stick.
- Each lever tumbler in the mechanism has a different shaped gate that the key must align.
- High-security lever locks may use five or more lever tumblers.
- Lever tumbler lock: A complete lock mechanism that uses one or more lever tumblers to secure the bolt. This is a compound term where lever tumbler functions as an adjective modifying "lock."
- The principle of the lever tumbler is fundamental to many traditional safe locks and cabinet locks.
- Tumbler (noun): A general term for any movable obstruction in a lock that must be adjusted to a specific position by the key to allow opening. A lever tumbler is one type of tumbler; others include pin tumblers (used in most modern cylinder locks).
- Lever lock (noun): A type of lock whose mechanism is based on lever tumblers.
- Lever (noun): In lockmaking context, this is often used as a shortened, informal synonym for lever tumbler.
- Detainer (noun): A more general security term for a component that detains or blocks movement until properly released.
The lever tumbler is distinguished from other lock components: * It is not the bolt (the part that moves in and out). * It is not the key. * It is not the lock case or housing. It is specifically the flat, pivoting metal piece inside the lock that interacts directly with the key.
- a flat metal tumbler in a lever lock