A child seat comprising a seat portion, a back support as well as belts that can be connected to a crotch member for securing a child in the child seat. A least one belt or the crotch member is provided with a spring element, by means of which the belt or the crotch member can be moved against spring force from a first position, in which the shoulder belt and the crotch member are disconnected, to a second position, in which the shoulder belt and the crotch member are connected.