Abstract: A coupler for force-transmitting coupling of two components, with a first coupling part having a first coupling interface, with a second coupling part having a second coupling interface, and with a coupling rod which is connected with a first end portion rotatably movable about an axis of rotation to the first coupling part and with a second end portion rotatably movable about the axis of rotation to the second coupling part, wherein the first end portion and the first coupling part form a first thread arrangement for adjusting a distance between the first coupling part and the second coupling part, wherein the first thread arrangement is assigned a first brake system, which is designed for a frictional brake torque transmission between the first coupling part and the first end portion.

Abstract: Holding gear for temporarily fixing a plate-shaped object, in particular a tablet computer, having a first holder which includes a coupling arrangement for connection to a supporting gear and a first receiving section for a positive reception at least in two spatial directions of a first narrow side of the plate-shaped object, and having a second holder, which has a second receiving section for receiving a second narrow side of the plate-shaped object in a form-fitting manner at least in two spatial directions, and further including a flexibly designed traction belt which is connected to the first holder and the second holder and which is designed for transmitting traction force between the first holder and the second holder for fixing the plate-shaped object.

Abstract: Holding gear for temporarily fixing a plate-shaped object, in particular a tablet computer, having a first holder which includes a coupling arrangement for connection to a supporting gear and a first receiving section for a positive reception at least in two spatial directions of a first narrow side of the plate-shaped object, and having a second holder, which has a second receiving section for receiving a second narrow side of the plate-shaped object in a form-fitting manner at least in two spatial directions, and further including a flexibly designed traction belt which is connected to the first holder and the second holder and which is designed for transmitting traction force between the first holder and the second holder for fixing the plate-shaped object.