Patent ID: 7905543

Claim:
A safety device in an opening-closing device of a vehicle, the opening-closing device including an opening-closing unit for opening to form an opening area on a vehicle body and closing the opening area, the safety device comprising: a millimeter wave sensor attached on the vehicle body; a memory containing reference data of a periphery of the opening area, the reference data being associated with each position of the opening-closing unit as measured by the millimeter wave sensor without an obstacle in the opening area; a comparison determination device for comparing measured data of the periphery of the opening area with the reference data stored in the memory, wherein the measured data is continually measured by the millimeter wave sensor attached on the vehicle body while the opening-closing unit is closing, and wherein the comparison determination device determines whether there is an obstacle or not in the opening area based on a difference between the measured data and the reference data when compared for the same position of the opening-closing unit; and a movement control device for changing a movement of the opening-closing unit to a pre-determined movement if the comparison determination device determines that there is the obstacle in the opening area.