Patent ID: 7758007

Claim:
A support for a commercial vehicle seating and operating unit, which is fastened to the support, the support comprising a rotatable bearing arrangement, by means of which the seating and operating unit is supported rotatably about a vertical axis of rotation, wherein the bearing arrangement comprises a base plate for fastening said seating and operating unit and having a first opening, a supporting plate for rigidly fastening the support in a commercial vehicle and having a second opening, and two cylindrical sleeves disposed one coaxially in the other, a first sleeve that is rigidly connected to the supporting plate and a second sleeve that is rigidly connected to the base plate, the second sleeve being rotatable in relation to the first sleeve, the inner sleeve forming a passage for the penetration of cables, pipes or hosepipes that connect the seating and operating unit to a unit of the vehicle, said passage communicating with the first and second openings, and the bearing arrangement comprising a limiting device that limits the rotation of the seating and operating unit about the vertical axis of rotation to a preset maximum angle, and a separate, releasable locking unit, wherein the limiting device limits the angle of rotation of the seating and operating unit to substantially 360° so that rotation of the seating and operating unit beyond 360° is not possible at all, and wherein in the 0° and substantially 360° limit position a first normal operating position of the seating and operating unit is situated, in which the bearing arrangement is lockable by means of the releasable locking unit.