Abstract: The invention relates to a protective covering (4) for sealing a flat spiral spring housing (2), to a flat spiral spring housing arrangement having a protective covering (4), and to a vehicle having a flat spiral spring housing arrangement of this type. The protective covering (4) has a first housing part (2A) and a second housing part (2B) which forms a housing cover, the first housing part (2A) forming, with the second housing part (2B), a receiving space for a flat spiral spring (3), and the two housing parts (2A, 2B) being rotatable with respect to one another. To this end, the flat spiral spring housing (2) has a gap between the first housing part (2A) and the second housing part (2B).

Abstract: The invention relates to a connecting device (1) for transmitting electrical signals to and/or from a steering wheel (23) of a motor vehicle, having a positionally fixed component (2) for positionally fixed installation in the motor vehicle, having a hub part (3) which is rotatably mounted on the positionally fixed component (2) and which serves for connection to the steering wheel (23), and having a locking element (6) which is movably mounted on a bearing part (3) and which, during the connection of the hub part (3) to the steering wheel (23), is movable counter to a spring force of a spring element (14) from an installation position, in which a blocking bar (9) of the locking element (6) blocks the rotation of the hub part (3) relative to the positionally fixed component (2), into an operating position, in which the rotation of the hub part (3) is enabled, wherein the connecting device (1) has a plunger (18) which is mounted movably relative to the locking element (6) and which, during the connection of th