Lateral rear region of a motor vehicle comprising an air directing device, and motor vehicle

A lateral rear region of a motor vehicle comprising:

• a rear vehicle body member extending at least behind a rear wheel housing of the motor vehicle, and
• an air directing device having an air guidance element that is displaceable relative to the rear vehicle body member between a rest position retracted in the lateral rear region and an operational position extended out of the lateral rear region such that, in the rest position, a flow guide surface of the air guidance element is covered by the rear vehicle body member and, in the operational position, the flow guide surface of the air guidance element is, at least in a longitudinal direction of the motor vehicle, displaced rearward relative to the rear vehicle body member,
• wherein the air directing device further comprises a guide and drive unit which guides and drives the air guidance element during the displacement of the air guidance element relative to the rear vehicle body member,
• wherein a drive of the guide and drive unit is configured as a crank drive comprising a crank, a crank arm, and a coupling arm,
• wherein the crank arm and the coupling arm implement a rotational movement of the crank during the displacement of the air guidance element of the air directing device relative to the rear vehicle body member,
• wherein the guide and drive unit comprises at least one fixed guide rail and at least one sliding block, which is configured to be displaced relative to the fixed guide rail, wherein the crank drive displaces the sliding block relative to the fixed guide rail, and displaces the air guidance element of the air directing device relative to the rear vehicle body member via the respective sliding block,
• wherein the air guidance element engages with guide bolts in a guide groove of the fixed guide rail, and at least one guide groove of the sliding block.

A lateral rear region of a motor vehicle comprising:

• a rear vehicle body member extending at least behind a rear wheel housing of the motor vehicle, and
• an air directing device having an air guidance element that is displaceable relative to the rear vehicle body member between a rest position retracted in the lateral rear region and an operational position extended out of the lateral rear region such that, in the rest position, a flow guide surface of the air guidance element is covered by the rear vehicle body member and, in the operational position, the flow guide surface of the air guidance element is, at least in a longitudinal direction of the motor vehicle, displaced rearward relative to the rear vehicle body member,
• wherein the air directing device further comprises a guide and drive unit which guides and drives the air guidance element during the displacement of the air guidance element relative to the rear vehicle body member,
• wherein a drive of the guide and drive unit is configured as a crank drive comprising a crank, a crank arm, and a coupling arm,
• wherein the crank arm and the coupling arm implement a rotational movement of the crank during the displacement of the air guidance element of the air directing device relative to the rear vehicle body member,
• wherein the guide and drive unit comprises at least one fixed guide rail and at least one sliding block, which is configured to be displaced relative to the fixed guide rail, wherein the crank drive displaces the sliding block relative to the fixed guide rail, and displaces the air guidance element of the air directing device relative to the rear vehicle body member via the respective sliding block,
• wherein the guide and drive unit comprises a housing, wherein the at least one fixed guide rail and the at least one sliding block are arranged in an interior space of the housing, wherein protrusions of the air guidance element extend from a side of the air guidance element facing away from the flow guide surface via portions through slots in the housing and into the housing.