RIVET SET BETWEEN TWO OPPOSED DRIVERS: ONE DRIVER HAS INNER AND OUTER MEMBERS MOVING AT DIFFERENT DISPLACEMENT RATES

摘要

A rivet setting apparatus having a first driver with a rivet deforming piece and an opposite second driver with a rivet deforming piece. One of the rivet deforming pieces has an outer housing with a deforming seat in its front end and an aperture into the deforming seat. Located in the aperture is a movable ram that can extend into the deforming seat. The ram and outer housing are movable at different rates and distances from home positions to deform a rivet.