US Patent 11013320 Drawer pull-out guide

A drawer pull-out guide includes a carcass rail to be fixed to a furniture carcass, an extension rail displaceably supported relative to the carcass rail between a closed position and an open position, a retraction device having a force storage member, and a functional unit arranged on a front-end region of the extension rail. The extension rail can be retracted into the closed position by a force of the force storage member. The retraction device is at least partially arranged within the extension rail. The functional unit and the retraction device are configured as constructional units separate from one another.