a cable winding drum disposed inside a housing of a casing and a seal attached to the casing the seal includes a stop portion that prevents translational movement of the drum along its rotational axis while still allowing the drum to rotate freely about the axis the inventive device allows the drum to be held in the housing before the casing is mounted on a dividing panel without requiring auxiliary parts to hold the drum in place and without compromising the seal when the casing is fastened to or removed from the dividing panel application_number US 36854403 A description the invention proposes a device for a window lifter for a vehicle generally the device comprises a drum a casing that houses the drum and a seal that holds the drum in the housing before the casing is fastened to a dividing panel the drum has an axis of rotation the seal has a portion that acts as a stop for the drum preventing the drum from translating along its axis of rotation fig1 illustrates a perspective view of the device before it is assembled the device comprises a drum casing 1 having a drum housing 2 a cable winding drum 3 to be inserted in the housing 2 and a seal 4 fastened to the casing 1 to hold the drum 3 in the housing 2 by placing the drum 3 in the housing 2 and then fastening the seal 4 to the casing 1 the drum 3 is held securely in the housing 2 the housing 2 forms a cavity that opens toward a.