Patent ID: 8393308

Claim:
A switchable cam follower of a valve train of a combustion engine, comprising: an internal lever; an external lever having arms that encompass the internal lever, the internal lever and the external lever being pivotably moveable relative to one another on an axis of rotation at a valve-side end of the cam follower; a stop for a gas exchange valve on an underside of the cam follower at the valve-side end of the cam follower; a complementary face for a support element on the underside of the cam follower at another end of the cam follower; a start face on an upper side of the cam follower for at least one high-lift cam; an axle journal extending transverse to the internal lever and the external lever, in a region of a longitudinal section of the cam follower that is spaced from the another end of the cam follower and in a vicinity of the complimentary face; and at least one torsion spring, which is a lost motion spring, seated on the axle journal and clamped between the internal lever and the external lever, wherein one of the levers has a receptacle and a coupling means is seated in the receptacle, another of the levers has a driving surface, and the coupling means is engagable in sections when coupled with the driving surface of the another of the levers, wherein the axle journal protrudes from an outer side wall of the internal lever or from an inner side wall of one of the arms of the external lever, above or lateral of the complementary face, wherein the arms of the external lever encompass the axle journal lengthwise to form a bracket behind an end of the internal lever at the another end of the cam follower, and wherein the bracket of the external lever has a recess and the internal lever has an outer side wall with a shoulder located behind the axle journal as viewed from the another end of the cam follower toward the valve-side end of the cam follower, and the torsion spring has a first limb and a second limb, the first limb is seated either in the recess of the bracket or acts on an underside of the bracket and the second limb of the torsion spring acts against the shoulder of the outer side wall of the internal lever.