This conveying device (10) is provided with: a plurality of retaining mechanisms (19) attached to a rotating shaft (15); a speed change mechanism that changes the angular velocity of the plurality of retaining mechanisms (19) so that an angular difference occurs between two adjacent retaining mechanisms (19) among the plurality of retaining mechanisms (19); a first cover (22) that extends from a first retaining mechanism, which is one of the two retaining mechanisms (19), toward a second retaining mechanism, which is the other of the two retaining mechanisms (19), so as to cover a gap between the two retaining mechanisms (19) from the outside in the radial direction of the rotating shaft (15); and a second cover (23) that extends from the second retaining mechanism toward the first retaining mechanism and overlaps the first cover (22) in the radial direction so as to cover the gap from the outside in the radial direction. Both the covers (22, 23) are long enough so as to be able to overlap each other in the radial direction while the two retaining mechanisms (19) are furthest apart from each other.L'invention concerne un dispositif de transport (10) comportant : une pluralité de mécanismes de retenue (19) fixée à un arbre rotatif (15) ; un mécanisme de changement de vitesse qui change la vitesse angulaire de la pluralité de mécanismes de retenue (19) de sorte qu'une différence angulaire se produise entre deux mécanismes de retenue adjacents (19) parmi la pluralité de mécanismes de retenue (19) ; un premier couvercle (22) qui s'étend d'un premier mécanisme de retenue, qui est l'un des deux mécanismes de retenue (19), à un second mécanisme de retenue, qui est l'autre des deux mécanismes de retenue (19), de manière à protéger un espace entre les deux mécanismes de retenue (19) de l'extérieur dans la direction radiale de l'arbre rotatif (15) ; et un second couvercle (23) qui s'étend du second mécanisme de retenue au premier mécanisme de retenue et qui chevauche le premi