An operating assembly unit for a motor vehicle may include a switch for shifting speed levels of an automatic motor vehicle transmission. The switch may include a first lever that is manually operable, a second lever mechanically coupled to the first lever, and a switching element. The first lever may be movable to actuate the electrical switching element by causing contact between the electrical switching element and the second lever. The second lever may include a leaf spring with a clamped end and a free end. The actuation of the first lever may deform the leaf spring such that at least a portion of the leaf spring is displaced towards the switching element.

An input device has operation shafts whose tips project through a first elongate hole and a second elongate hole formed through an upper plate portion of a case main body and that are movable along the upper plate portion of the case main body. An operation knob is movably attached to the tips of the operation shafts. The case main body is provided with elastic support pieces that deform following the movement of the operation knob and elastically support the operation knob.

An input device has operation shafts whose tips project through a first elongate hole and a second elongate hole formed through an upper plate portion of a case main body and that are movable along the upper plate portion of the case main body. An operation knob is movably attached to the tips of the operation shafts. The case main body is provided with elastic support pieces that deform following the movement of the operation knob and elastically support the operation knob.