Dørlukkere

Dørlukkere, also known as door closers, are mechanical devices that automatically close a door after it has been opened. They are commonly found on commercial buildings, public institutions, and some residential properties. The primary function of a dørlukker is to ensure doors are properly closed, which contributes to building security, energy efficiency, and fire safety.

The operation of a dørlukker typically involves a hydraulic or pneumatic system. When the door is opened, a spring-loaded arm is compressed or a piston is moved within a cylinder. As the door is released, this stored energy is gradually released, controlling the speed at which the door closes. Many dørlukkere have adjustable settings to control the closing speed, latching speed (the final push to fully close the door), and sometimes backcheck (resistance to opening beyond a certain point).

Dørlukkere are important for maintaining controlled environments within buildings. By ensuring doors close reliably, they help regulate temperature, prevent drafts, and limit the spread of smoke or fire in case of an emergency. They also contribute to accessibility by providing a controlled closing action, preventing doors from slamming shut on individuals. Different types of dørlukkere exist, including surface-mounted, concealed, and overhead concealed models, each suited for different aesthetic and functional requirements.