Jonathan Coulter Commercial Product Manager Southco, Inc.
latches
Latches, such as this C2 Lever Compression Latch, can offer a streamlined look that’s easy to install and operate while ensuring a secure and sealed fit.
What are the different types of latches available for secure enclosures? A latch is a mechanical device that joins two objects together while allowing for regular separation or autonomy. For example, these two objects can be a moving panel or door, and a non-moving or fixed panel. A latch typically holds these objects together to protect the contents of an enclosure, granting regular access when needed — such as a metal latch that might hold a gate closed when not in use. Choosing the ideal latch, which appropriately manages access to an enclosure, is an important consideration during the design process. Latches range greatly in complexity, depending on the purpose of an intended application. There are several factors affecting latch selection, including the:
18
December 2021
• • • • •
Actuation method Ease of access Desired mounting style Security requirements Environmental considerations
Design engineers should carefully consider these factors when deciding which type of latch to select for their specific application. Types of latches The following latch types can be used to manage access to enclosures. Cam latch – consists of a body that’s typically attached to a moving panel or door, which incorporates a cam lever that can be rotated to engage a nonmoving or fixed panel. Once the door www.fastenerengineering.com
is closed, the cam rotates behind the fixed panel to secure the moving panel or door. The cam lever is actuated by a simple twisting or turning motion, either by hand or tool. Compression latch – nearly identical in functionality to a cam latch in that a compression latch is composed of a body and a cam lever that rotates when actuated by hand or tool. However, with a compression latch, the cam creates a clamping force between the two surfaces. This force between the panels helps prevent vibration or rattling. It can also compress a gasket to provide adequate sealing for protection against environmental factors, such as dust or moisture. DESIGN WORLD