Patent ID: 8072743

Claim:
An on-board monitor device for a monitor vehicle, comprising: a monitor adapted to move between an inactive position in a recess of a dashboard and an active position outside the recess of the dashboard; a cover adapted to close an opening of the recess when the monitor is in the inactive position; a drive mechanism coupled to the monitor and the cover; a fixed control cam having a control groove; a rotatably drivable drive disk having a radial driving groove; a rotatably mounted cover output disk for driving the cover having a cover drive groove; a rotatably mounted monitor output disk for movement drive of the monitor having a monitor drive groove; a coupling element adapted to engage the control groove, the radial driving groove, the cover drive groove, and the monitor drive groove, wherein the control cam, the drive disk, the mounted cover output disk, and the mounted monitor output disk are arranged next to each other and coaxially with respect to an axis, wherein the control groove has a profile which corresponds to the combined profile of the cover drive groove and the monitor drive groove, and wherein each of the cover drive groove and monitor drive groove have a freewheeling region concentric with respect to the axis and a tangential driving region, the movement profile of the cover and the monitor are based at least in part on the respective freewheeling regions of the cover drive groove and monitor drive groove.