Numerous designs are known for making rotary impact tools. U.S. Pat. Nos. 2,285,638; 3,661,217; and 6,491,111 disclose several variations of rotary impact tools having conventional rotary impact mechanisms. Such mechanisms are configured to deliver rotary forces via a series of transient impact blows which enables a human operator to handle the impact wrench while delivering relatively high torque forces in short duration impact blows. By applying relatively short duration high torque impact blows, a normal human being is rendered with the ability to physically hold onto the impact wrench while rendering the relatively high torque forces. If these forces were delivered in a continuous manner, a human operator would be required to impart an opposite continuous reaction force on the impact wrench which would prove to be too great for the operator.
One problem with the rotary impact tools mentioned above is the inability to deliver relatively high torque forces in short duration impact blows while reducing the peak transient forces generated at the instance of impact within the rotary impact mechanism.
Accordingly, it would be advantageous to control, or limit transmission of peak transient forces that are generated via a rotary impact mechanism of a rotary impact tool to an anvil.