Leaf spring receptacles are used in a wide range of aerospace-related applications. You can find them in engine cowlings, aircraft access panels, electrical housings, doors and more. Even with their widespread usage, though, many people are unfamiliar with them. What are leaf spring receptacles exactly?
The Basics of Leaf Spring Receptacles
Leaf spring receptacles are fastener components used in quick-access fastening systems. As their name suggests, they are designed to receive a spring-loaded fastener, such as a quarter-turn fastener. Leaf spring receptacles feature a thin strip of metal, the “leaf,” that flexes to apply tension.
How Leaf Spring Receptacles Work
Quarter-turn fasteners offer a convenient alternative to traditional fasteners. You can lock them with a simple 90-degree turn, and you can unlock them with a 90-degree turn in the opposite direction. Quarter-turn fasteners, however, need a receptacle, which is where leaf spring receptacles come into play.
When you turn a quarter-turn fastener in a leaf spring receptacle, the leaf will flex. This creates tension that holds the panel in place. As the quarter-turn fastener is turned in the opposite direction, the tension is released and the leaf returns to its original shape.
Clip-On vs Riveted Leaf Spring Receptacles
There are different types of leaf spring receptacles, such as clip-on and riveted. While they are both used in conjunction with quarter-turn fasteners, they aren’t the same.
Clip-on leaf spring receptacles are installed via clipping. You can clip them onto the edge of a thin panel. Riveted leaf spring receptacles, on the other hand, are installed via rivets. They typically feature two holes for two rivets.
Why Use Leaf Spring Receptacle Assemblies
When compared to traditional fasteners, leaf spring receptacle assemblies offer several advantages. For starters, they are highly resistant to vibrations. The tension created by the receptacle’s leaf allows for a secure hold. Even when exposed to vibrations, they won’t come loose, making them ideal for use in airplanes and vehicles.
Leaf spring receptacles can reduce maintenance times. Access panels, for instance, often feature them because of their ease of use. Maintenance workers can open these panels by turning the connected quarter-turn fastener 90 degrees. There are no tools or equipment involves. All it takes is a simple turn to open the panel.
Another reason to use leaf spring receptacle assemblies is to conserve space. They are relatively small and take up less space than traditional fasteners. Their compact footprint allows engineers to design lighter systems.
