An impact guarding device includes a shield material in sheet form mounted within the passenger compartment of the vehicle in a manner such that the sheet material can move up and down adjacent the inner surface of the windshield. At least the end of said sheet material which is adjacent a windshield pillar is adapted at its lower end to move in conjunction with a slider, and the slider is adapted to move up and down along a guide rail which is associated with the pillar. The slider is connected to a pull-down mechanism by a tension wire extending therebetween, and the pull-down mechanism has associated therewith a trigger mechanism which is activated upon frontal impact of the vehicle. Thus, upon frontal impact of the vehicle, the trigger mechanism is activated and the shield material is forcibly pulled down. The sheet material may have a handle associated with the lower end thereof, so that the sheet material may be manually pulled downwardly. Moreover, the lower end of the sheet material may have a release mechanism associated with the handle and is connected to a spring loaded protrusion extending from the slider towards the guide rial, which has a plurality of spaced apart holes along its length. Thus, actuation of the release mechanism permits the sheet material to be raised or lowered so that the protrusion will engage with one of the holes in the guide rail.