A closing device comprising - a door with two main opposite faces referred to as the front and the rear faces, a side referred to as the upper side, an opposite side referred to as the lower side and opposite lateral sides joining the upper and lower sides, - guiding rails comprising at least one horizontal guiding rail, - two lower guiding elements (11 A) - at least two guiding systems, each comprising -- a first guiding element that is placed in the vertical alignment of the lower guiding element (11 A) when the door is in the vertical position, associated respectively with the two opposite lateral sides of the door, near its upper side, -- a second guiding element at a distance from the first guiding element and arranged close to and offset from the rear face of the door when the door is in the vertical position, - a spacer associated with the door, which can rotate in relation to the door, wherein the spacer is firstly mounted to rotate around an axis parallel to the rear side of the door and located below the guiding elements and secondly fixed to the first and second guiding elements (17, 18), wherein the guiding systems are complementary to the guiding rails comprising at least one horizontal rail, characterized in that a guiding system comprises a means to limit the rotation of the spacer in relation to the door, so that when the door is in the vertical position, only the first guiding element is in contact with the lower internal part of the horizontal guiding rail and the upper part of the second guiding element is in direct contact with the upper internal part of the horizontal guiding rail in which said guiding element is inserted. - a door with two main opposite faces referred to as the front and the rear faces, a side referred to as the upper side, an opposite side referred to as the lower side and opposite lateral sides joining the upper and lower sides, - guiding rails comprising at least one horizontal guiding rail, - two lower guiding elements (11 A) - at least two guiding systems, each comprising -- a first guiding element that is placed in the vertical alignment of the lower guiding element (11 A) when the door is in the vertical position, associated respectively with the two opposite lateral sides of the door, near its upper side, -- a second guiding element at a distance from the first guiding element and arranged close to and offset from the rear face of the door when the door is in the vertical position, -- a first guiding element that is placed in the vertical alignment of the lower guiding element (11 A) when the door is in the vertical position, associated respectively with the two opposite lateral sides of the door, near its upper side, -- a second guiding element at a distance from the first guiding element and arranged close to and offset from the rear face of the door when the door is in the vertical position, - a spacer associated with the door, which can rotate in relation to the door, wherein the spacer is firstly mounted to rotate around an axis parallel to the rear side of the door and located below the guiding elements and secondly fixed to the first and second guiding elements (17, 18), wherein the guiding systems are complementary to the guiding rails comprising at least one horizontal rail,