Patent attributes
A gun sight clamping system utilizes a resilient device and an over-center cam to attach a gun sight to the rail of a gun. The body of the clamping system is clamped to the rail using a clamping mechanism on one side of the assembly and a resilient device on the other side of the assembly. The resilient device operates in a direction parallel to the clamping direction. A cross bar connects the clamping mechanism to the resilient device and provides a means to squeeze the body of the mount to the rail. As the lever is closed, the cam drives the cross bar, pulling the clamping mechanism against the rail. The resilient device allows the cam to move to an over-center position wherein the unit resists loosening during operation. Once the over-center position is achieved, the spring force of the resilient device holds the cam in the closed position.