| 摘要 |
PURPOSE:To cause rain-fall not to beat the windsheidl of an automobile by setting the relation in which the resultant angle beta of the falling speed of rain and the running speed of a car is larger than the angle alpha between the plane passing from the upper end of the rain-stop of the windshield to the lower end of the windshield and the horizontal plane. CONSTITUTION:The relation is set as follows: The resultant angle beta of the falling speed VR of rain and the running speed VC of a car is larger than the angle alpha between the plane passing from the upper end 4 of the rain stop of the windshield 3 to the lower end of the windshield 3 and the horizontal plane. Consequently, the rain-fall does not beat the windshield 3 being at the right hand from the point 7 at which the straight line from the rain stop end 4 intersects the horizontal plane with the angle beta. |
