Patent ID: 6978750

Claim:
A cam follower comprising a rocker arm, pivot and roller, (1) the rocker arm is: (1a) made from a metal plate through a drawing process, and comprises (1b) a pair of side wall sections, (1c) connecting sections to connect the pair of side wall sections, (1d) the pair of side wall sections having a pair of through holes in alignment with each other, (1e) the through holes having openings at the opposite ends, wherein the openings on the outside surface side of the respective side wall sections are formed with a beveled section along the peripheral portion thereof, (1f) the side wall sections having a thickness which is uneven due to the drawing process, wherein the difference of the thickness at the peripheral portions of the through holes is less than the length in the axial direction of the beveled section, (2) the pivot: (2a) has the outer peripheral edge on the opposite end surfaces thereof, and (2b) is fitted into the pair of through holes to extend between the pair of side wall sections, (2c) provided that the connecting side is on the upper side while the opposite side to the connecting side is on the lower side, the outer peripheral edge of the opposite end surfaces in the axial direction of the pivot being crimped toward the upper side of the peripheral portion of the through hole, and (3) the roller being supported rotatably around the middle portion of the pivot.