Shock absorber and overload protection device

摘要

A shock absorber for a starter is presented. The shock absorber includes a rotary disk (20), a stationary disk (21) and a disk spring (22). The rotary disk (20) is pressed by the disk spring (22) against a stationary disk (21) to generate frictional force when the rotary disk (20) is rotated by an excessive shock thereby absorbing the shock. The rotary disk (20) has a plurality of press-formed rectangular dimples (25) at a surface opposite the stationary disk (21), and each side of each the rectangular dimple inclines to a direction of rolling of the raw material of the rotary disk (20). <IMAGE>