A "lock tongue" refers to the projecting part of a locking mechanism that engages with a corresponding part to secure something. The specific meaning depends heavily on context. There are multiple interpretations:
1. Lock Tongue in Door Locks and Related Mechanisms:
This refers to the bolt or latch that extends from a lock to secure a door, drawer, or other similar item. As seen in references like the DIY Stack Exchange question, this is the part that physically engages with the strike plate on a door frame. Some locks, like the Red Deadbolt Rim Lock, may have multiple tongues for increased security.
- Example: The metal piece that extends from your front door lock when you turn the key is a lock tongue.
2. Lock Tongue in Couplers and Trailers:
The term may also refer to the locking mechanism on trailer hitches, as suggested by the Amazon search results for "Trailer Tongue Lock" and discussion on Keystone RV Forums. In this context, the "tongue" is the part of the trailer that connects to the towing vehicle, and the "lock tongue" is the securing mechanism.
- Example: A locking pin or latch that keeps a trailer securely coupled to a vehicle.
3. Lock Tongue in Specialized Applications:
The term "lock tongue" can appear in more niche contexts, such as in the leathercraft example from Reddit. Here, it likely describes an ornamental or functional element of a buckle or fastening system. The YouTube video also mentions a "tongue style locking device" without further specification, implying the term's usage is very contextual.
- Example: A specialized component in a buckle or fastening system.
The ambiguity of "lock tongue" highlights the importance of considering the specific context in which the term is used to ensure accurate understanding.
