ANTI-COLLISION DEVICE (VARIANTS) Russian patent published in 2008 - IPC E01F13/12 

FIELD: arrangements for obstructing or restricting traffic, particularly to protect hinged gates against rapidly moving vehicles.

SUBSTANCE: device comprises support pivotally connected with fastening means, which secures device to gate leafs. Device in accordance with the first embodiment comprises beam hinged to support, wheel movably connected to beam and resilient member secured to beam by one end. Device in accordance with the second embodiment comprises slide moving along support, wheel movably connected to slide and resilient member fastened to slide by the first end thereof. Another end of resilient member is secured to fastening unit or to support. Resilient member may be made as curvilinear beam or spring. In the second embodiment resilient member made as spring may be put on support.

EFFECT: provision of gate movement stoppage in the case of vehicle impingement upon gates.