A drive device for a moveable furniture part , in particular for a drawer, comprising - a carrier which extends in the closing direction (SR) of the moveable furniture part , - an ejection device for ejecting the moveable furniture part out of a closed position (SS) into an open position (OS), wherein the ejection device has an ejection slide moveable relative to the carrier and an ejection force storage means fixed on the one hand to the carrier and on the other hand to the ejection slide , wherein the ejection device is unlockable out of a locking position (VS) by an overpressing movement of the moveable furniture part into an overpressing position (US) behind the closed position (SS), - a locking device for locking the ejection device in the locking position (VS), wherein the locking device has a locking pin connected to the ejection device and a guide track provided at least partially in or on the carrier for the locking pin , wherein the locking pin in the locking position (VS) is locked in a latching recess (R) in the guide track , and - a synchronization device for synchronizing the movement of the drive device with a second drive device , wherein the synchronization device has a transmission element which is mounted moveably to the carrier and is moveable by the locking pin , and a synchronization coupling element connected to the transmission element , wherein the guide track has a maximum guide track width (B max ) measured at a right angle to the closing direction (SR), wherein viewed in the closing direction (SR) the synchronization coupling element and the ejection force storage means are arranged within said guide track width (B max ), wherein the end points of the maximum guide track width (B max ) are respectively arranged in a limit plane oriented at a right angle to the maximum guide track width (B max ), wherein those two limit planes are parallel to each other, wherein the synchronization coupling element and the ejection force storage means are disposed entirely between those limit planes, characterized in that the guide track has a cardioid-shaped portion. - a carrier which extends in the closing direction (SR) of the moveable furniture part , - an ejection device for ejecting the moveable furniture part out of a closed position (SS) into an open position (OS), wherein the ejection device has an ejection slide moveable relative to the carrier and an ejection force storage means fixed on the one hand to the carrier and on the other hand to the ejection slide , wherein the ejection device is unlockable out of a locking position (VS) by an overpressing movement of the moveable furniture part into an overpressing position (US) behind the closed position (SS), - a locking device for locking the ejection device in the locking position (VS), wherein the locking device has a locking pin connected to the ejection device and a guide track provided at least partially in or on the carrier for the locking pin , wherein the locking pin in the locking position (VS) is locked in a latching recess (R) in the guide track , and - a synchronization device for synchronizing the movement of the drive device with a second drive device , wherein the synchronization device has a transmission element which is mounted moveably to the carrier and is moveable by the locking pin , and a synchronization coupling element connected to the transmission element , <EOS>