US Patent 11864651 Closing device for drawers

A closing device includes a rack body having an elongated rack and being slidably coupled to a base, with a catch pivotally coupled to the rack body and a gear pivotally coupled to the base and engaging the elongated rack. A first biasing member is coupled to the base and rack body and provides a substantially linear biasing force. A second biasing member is coupled to the base and gear, and the elongated rack and gear engagement provides a mechanical advantage and a non-linear biasing force. The closing device is for use in a drawer slide having a latch coupled to a first drawer slide member and the base coupled to a second drawer slide member, with the latch releasably coupled to the catch to move the drawer slide to a closed position.