Patent ID: 7565890

Claim:
An arrangement of roller tappets on a rail used as an anti-rotation guide for the valve train of an internal combustion engine, comprising accepting spaces arranged in a row spaced apart at a distance from one another in the rail for accepting inserted valve lifters provided as roller tappets, each of the roller tappets having one planar anti-rotation guide area in order to prevent rotation of the roller tappet around a central longitudinal axis thereof, the anti-rotation guide area is supported at a guide area of the rail located inside of a corresponding one of the accepting spaces, and the accepting spaces having an associated insertion opening key hole, into which the respective roller tappet is inserted in a direction of the longitudinal axis thereof, subsequently displaced parallel to the axis towards the accepting space, and then displaced again in an axial direction, the anti-rotation guide area of the roller tappet is formed by a bent sheet metal strip of a spring support, which is arranged at a back end of the roller tappet facing away from the tappet roller.