Abstract: The device for joining chairs in a row is dimensionally stable, easily operated, and, hence, panic-proof. In one preferred embodiment of the invention the device includes a first component configured for being mounted to a chair; a first borehole defined in the first component; a first locking pin disposed in the first component and extending into the first borehole; a second component configured for being mounted to a chair; a second borehole defined in the second component; a second locking pin disposed in the second component and extending into the second borehole; and a connection element displaceably mounted in the first borehole, the connection element being configured for insertion into the second borehole, and a first locking element disposed on the connection element for engaging the first locking pin for preventing displacement of the connection element.