| 主权项 |
1. A utility vehicle seat, comprising:
a seat part, with a backrest part and with a seat substructure for arrangement on a bodywork part of a utility vehicle, in which the seat substructure comprises a rotation adjustment device for rotating at least the seat part with respect to the bodywork part with a ball bearing unit, with a stationary shell part and with a rotating shell part which is rotatable with respect to the stationary shell part, and in which the ball bearing unit includes at least one ball rim part which is arranged between the stationary shell part and the rotating shell part with respect to circular ball tracks of the stationary shell part and the rotating shell part, in such a way that the rotating shell part is arranged supported in a rotatably movable manner with respect to the stationary shell part, wherein a rotation adjustment device overload protection unit with support elements which are arranged in a stationary manner with respect to the stationary shell part or the rotating shell part and by means of which the rotating shell part and the stationary shell part are additionally capable of being supported with respect to each other when the carrying capacity of one of the circular ball tracks reaches or exceeds a critical deformation value. |
