Cargo container for a vehicle, having - a container body comprising an upper container opening, - a covering device for the container opening, having a tarpaulin (3.1), an elongate winding core (3.2) and a tarpaulin tensioning device (3.3), wherein - the winding core (3.2) extends with its longitudinal axis along a first container side (2.2) in a first position and along a second container side (2.3) opposite the first container side (2.2) in a second position, - the tarpaulin (3.1) is fastened to the first container side (2.2) on one side and to the winding core (3.2) with an opposite tarpaulin side, - the tarpaulin (3.1), in a closure position closing the container opening, has been unwound at least partially from the winding core (3.2), guided over the container opening and locked and tensioned on the second container side (2.3) and, via the winding core (3.2), on the container body, - the tarpaulin tensioning device (3.3) comprises at least one hand crank (3.3.3), arranged on the winding core (3.2) on one longitudinal side, for generating a rotation of the winding core (3.2) about its longitudinal axis, wherein the hand crank (3.3.3) is mechanically engaged with the winding core (3.2) in an operating state and the mechanical engagement is released in a free-running state different from the operating state, - the tarpaulin tensioning device (3.3) comprises at least two receiving hooks (3.3.1, 3.3.2) which are arranged on the second container side (2.3), in a manner spaced apart from one another, along the longitudinal extent of the latter, and into which the winding core (3.2) is hookable in different longitudinal positions, and when the winding core is rotated in the winding-up direction of the tarpaulin (3.1), the tarpaulin (3.1) is able to be tensioned, characterized in that - the tarpaulin tensioning device (3.3) comprises at least one bracket (3.3.4) which is fastened at an end of the second container side (2.3) that faces the hand crank (3.3.3) in the tensioned state of the tarpaulin (3.1), - the bracket (3.3.4) comprises an upper contact face (3.3.4.1) for contact of that end of the winding core (3.2) that is provided with the hand crank (3.3.3), - the bracket (3.3.4) is fastened in a vertical position on the second container side (2.3) such that the winding core (3.2) rests on the upper contact face (3.3.4.1) in a clamped manner in the tensioned state of the tarpaulin (3.1), and - a deflection of that end of the winding core (3.2) that is provided with the hand crank (3.3.3) brings about the clamping. - a container body comprising an upper container opening, - a covering device for the container opening, having a tarpaulin (3.1), an elongate winding core (3.2) and a tarpaulin tensioning device (3.3), wherein - the winding core (3.2) extends with its longitudinal axis along a first container side (2.2) in a first position and along a second container side (2.3) opposite the first container side (2.2) in a second position, - the tarpaulin (3.1) is fastened to the first container side (2.2) on one side and to the winding core (3.2) with an opposite tarpaulin side, - the tarpaulin (3.1), in a closure position closing the container opening, has been unwound at least partially from the winding core (3.2), guided over the container opening and locked and tensioned on the second container side (2.3) and, via the winding core (3.2), on the container body, - the tarpaulin tensioning device (3.3) comprises at least one hand crank (3.3.3), arranged on the winding core (3.2) on one longitudinal side, for generating a rotation of the winding core (3.2) about its longitudinal axis, wherein the hand crank (3.3.3) is mechanically engaged with the winding core (3.2) in an operating state and the mechanical engagement is released in a free-running state different from the operating state, - the tarpaulin tensioning device (3.3) comprises at least two receiving hooks (3.3.1, 3.3.2) which are arranged on the second container side (2.3), in a manner spaced apart from one another, along the longitudinal extent of the latter, and into which the winding core (3.2) is hookable in different longitudinal positions, and when the winding core is rotated in the winding-up direction of the tarpaulin (3.1), the tarpaulin (3.1) is able to be tensioned, characterized in that - the tarpaulin tensioning device (3.3) comprises at least one bracket (3.3.4) which is fastened at an end of the second container side (2.3) that faces the hand crank (3.3.3) in the tensioned state of the tarpaulin (3.1), - the bracket (3.3.4) comprises an upper contact face (3.3.4.1) for contact of that end of the winding core (3.2) that is provided with the hand crank (3.3.3), - the bracket (3.3.4) is fastened in a vertical position on the second container side (2.3) such that the winding core (3.2) rests on the upper contact face (3.3.4.1) in a clamped manner in the tensioned state of the tarpaulin (3.1), and - a deflection of that end of the winding core (3.2) that is provided with the hand crank (3.3.3) brings about the clamping.