Electric or pneumatic screw gun protection device for motor vehicle, has fixture mouthpiece with rear end mounted on end of rotating machine and front end presenting opening to allow projection of mouthpiece outside device

摘要

The device (2) has a deformable elastomer bag (5) defining an internal volume (V), in which a fixture mouthpiece e.g. screw gun head (6) is housed, where a screwing end (4) of a rotating tool machine is provided with the mouthpiece driving in rotation. The mouthpiece has a rear end mounted on the end of the rotating tool machine, and a front end presenting an opening to allow a projection of the mouthpiece outside the device. The bag is provided with a center cone (10) that is formed of a material presenting stiffness higher than material used for the bag.